diff options
54 files changed, 1511 insertions, 435 deletions
diff --git a/bootstrap/bin/start.boot b/bootstrap/bin/start.boot Binary files differindex f5800105d3..b57eef57ab 100644 --- a/bootstrap/bin/start.boot +++ b/bootstrap/bin/start.boot diff --git a/bootstrap/bin/start_clean.boot b/bootstrap/bin/start_clean.boot Binary files differindex f5800105d3..b57eef57ab 100644 --- a/bootstrap/bin/start_clean.boot +++ b/bootstrap/bin/start_clean.boot diff --git a/configure.in b/configure.in index f6cccb4f4b..be906dcb4e 100644 --- a/configure.in +++ b/configure.in @@ -2,7 +2,7 @@ dnl Process this file with autoconf to produce a configure script. dnl %CopyrightBegin% dnl -dnl Copyright Ericsson AB 1998-2012. All Rights Reserved. +dnl Copyright Ericsson AB 1998-2014. All Rights Reserved. dnl dnl The contents of this file are subject to the Erlang Public License, dnl Version 1.1, (the "License"); you may not use this file except in @@ -209,7 +209,7 @@ AS_HELP_STRING([--enable-dirty-schedulers], [enable dirty scheduler support])) AC_ARG_ENABLE(halfword-emulator, AS_HELP_STRING([--enable-halfword-emulator], - [enable halfword emulator (only for 64bit builds)])) + [enable halfword emulator (only for 64bit builds). Note: Halfword emulator is marked as deprecated and scheduled for removal in future major release.])) AC_ARG_ENABLE(smp-support, AS_HELP_STRING([--enable-smp-support], [enable smp support]) diff --git a/erts/configure.in b/erts/configure.in index 6d5eca8966..208c294106 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -2,7 +2,7 @@ dnl Process this file with autoconf to produce a configure script. -*-m4-*- dnl %CopyrightBegin% dnl -dnl Copyright Ericsson AB 1997-2013. All Rights Reserved. +dnl Copyright Ericsson AB 1997-2014. All Rights Reserved. dnl dnl The contents of this file are subject to the Erlang Public License, dnl Version 1.1, (the "License"); you may not use this file except in @@ -144,7 +144,7 @@ AS_HELP_STRING([--enable-dirty-schedulers], [enable dirty scheduler support]), AC_ARG_ENABLE(halfword-emulator, AS_HELP_STRING([--enable-halfword-emulator], - [enable halfword emulator (only for 64bit builds)]), + [enable halfword emulator (only for 64bit builds). Note: Halfword emulator is marked as deprecated and scheduled for removal in future major release.]), [ case "$enableval" in no) enable_halfword_emualtor=no ;; *) enable_halfword_emulator=yes ;; @@ -816,6 +816,16 @@ if test "$enable_halfword_emulator" = "yes"; then [Define if building a halfword-heap 64bit emulator]) ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS halfword" AC_MSG_RESULT([yes]) + + test -f "$ERL_TOP/erts/CONF_INFO" || + echo "" > "$ERL_TOP/erts/CONF_INFO" + cat >> $ERL_TOP/erts/CONF_INFO <<EOF + + The HALFWORD emulator has been enabled. + This is a DEPRECATED feature scheduled for removal + in a future major release. + +EOF else AC_MSG_ERROR(no; halfword emulator not supported on this architecture) fi diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index 4aa3033f40..9724a1345a 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -536,7 +536,7 @@ <tag><marker id="file_name_encoding"></marker><c><![CDATA[+fnl]]></c></tag> <item> <p>The VM works with file names as if they are encoded using the ISO-latin-1 encoding, disallowing Unicode characters with codepoints beyond 255.</p> - <p>See <seealso marker="stdlib:unicode_usage#unicode_file_names">STDLIB User's Guide</seealso> for more infomation about unicode file names.</p> + <p>See <seealso marker="stdlib:unicode_usage#unicode_file_names">STDLIB User's Guide</seealso> for more infomation about unicode file names. Note that this value also applies to command-line parameters and environment variables (see <seealso marker="stdlib:unicode_usage#unicode_in_environment_and_parameters">STDLIB User's Guide</seealso>).</p> </item> <tag><c><![CDATA[+fnu[{w|i|e}]]]></c></tag> <item> @@ -555,7 +555,7 @@ encountered. <c>w</c> is the default. Note that <c>file:read_link/1</c> will always return an error if the link points to an invalid file name.</p> - <p>See <seealso marker="stdlib:unicode_usage#unicode_file_names">STDLIB User's Guide</seealso> for more infomation about unicode file names.</p> + <p>See <seealso marker="stdlib:unicode_usage#unicode_file_names">STDLIB User's Guide</seealso> for more infomation about unicode file names. Note that this value also applies to command-line parameters and environment variables (see <seealso marker="stdlib:unicode_usage#unicode_in_environment_and_parameters">STDLIB User's Guide</seealso>).</p> </item> <tag><c><![CDATA[+fna[{w|i|e}]]]></c></tag> <item> @@ -572,7 +572,7 @@ settings cause the behavior of <c>+fnl</c> to be selected, then <c>w</c>, <c>i</c>, or <c>e</c> will not have any effect.</p> - <p>See <seealso marker="stdlib:unicode_usage#unicode_file_names">STDLIB User's Guide</seealso> for more infomation about unicode file names.</p> + <p>See <seealso marker="stdlib:unicode_usage#unicode_file_names">STDLIB User's Guide</seealso> for more infomation about unicode file names. Note that this value also applies to command-line parameters and environment variables (see <seealso marker="stdlib:unicode_usage#unicode_in_environment_and_parameters">STDLIB User's Guide</seealso>).</p> </item> <tag><c><![CDATA[+hms Size]]></c></tag> <item> diff --git a/erts/emulator/beam/beam_emu.c b/erts/emulator/beam/beam_emu.c index 0cec9ea3ec..9634faff1d 100644 --- a/erts/emulator/beam/beam_emu.c +++ b/erts/emulator/beam/beam_emu.c @@ -1301,7 +1301,7 @@ void process_main(void) (Eterm)fptr[1], (Uint)fptr[2], NULL, fun_buf); } else { - erts_snprintf(fun_buf, sizeof(fun_buf), + erts_snprintf(fun_buf, sizeof(DTRACE_CHARBUF_NAME(fun_buf)), "<unknown/%p>", next); } } diff --git a/erts/emulator/beam/copy.c b/erts/emulator/beam/copy.c index 3a987e213b..50548850eb 100644 --- a/erts/emulator/beam/copy.c +++ b/erts/emulator/beam/copy.c @@ -48,7 +48,8 @@ copy_object(Eterm obj, Process* to) if (DTRACE_ENABLED(copy_object)) { DTRACE_CHARBUF(proc_name, 64); - erts_snprintf(proc_name, sizeof(proc_name), "%T", to->common.id); + erts_snprintf(proc_name, sizeof(DTRACE_CHARBUF_NAME(proc_name)), + "%T", to->common.id); DTRACE2(copy_object, proc_name, size); } #endif diff --git a/erts/emulator/beam/dist.c b/erts/emulator/beam/dist.c index 6ecf3f0722..ec07ddcd9c 100644 --- a/erts/emulator/beam/dist.c +++ b/erts/emulator/beam/dist.c @@ -851,9 +851,12 @@ erts_dsig_send_msg(ErtsDSigData *dsdp, Eterm remote, Eterm message) #ifdef USE_VM_PROBES *node_name = *sender_name = *receiver_name = '\0'; if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) { - erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname); - erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->common.id); - erts_snprintf(receiver_name, sizeof(receiver_name), "%T", remote); + erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), + "%T", dsdp->dep->sysname); + erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), + "%T", sender->common.id); + erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), + "%T", remote); msize = size_object(message); if (token != NIL && token != am_have_dt_utag) { tok_label = signed_val(SEQ_TRACE_T_LABEL(token)); @@ -908,9 +911,11 @@ erts_dsig_send_reg_msg(ErtsDSigData *dsdp, Eterm remote_name, Eterm message) #ifdef USE_VM_PROBES *node_name = *sender_name = *receiver_name = '\0'; if (DTRACE_ENABLED(message_send) || DTRACE_ENABLED(message_send_remote)) { - erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname); - erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->common.id); - erts_snprintf(receiver_name, sizeof(receiver_name), + erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), + "%T", dsdp->dep->sysname); + erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), + "%T", sender->common.id); + erts_snprintf(receiver_name, sizeof(DTRACE_CHARBUF_NAME(receiver_name)), "{%T,%s}", remote_name, node_name); msize = size_object(message); if (token != NIL && token != am_have_dt_utag) { @@ -971,11 +976,14 @@ erts_dsig_send_exit_tt(ErtsDSigData *dsdp, Eterm local, Eterm remote, #ifdef USE_VM_PROBES *node_name = *sender_name = *remote_name = '\0'; if (DTRACE_ENABLED(process_exit_signal_remote)) { - erts_snprintf(node_name, sizeof(node_name), "%T", dsdp->dep->sysname); - erts_snprintf(sender_name, sizeof(sender_name), "%T", sender->common.id); - erts_snprintf(remote_name, sizeof(remote_name), + erts_snprintf(node_name, sizeof(DTRACE_CHARBUF_NAME(node_name)), + "%T", dsdp->dep->sysname); + erts_snprintf(sender_name, sizeof(DTRACE_CHARBUF_NAME(sender_name)), + "%T", sender->common.id); + erts_snprintf(remote_name, sizeof(DTRACE_CHARBUF_NAME(remote_name)), "{%T,%s}", remote, node_name); - erts_snprintf(reason_str, sizeof(reason), "%T", reason); + erts_snprintf(reason_str, sizeof(DTRACE_CHARBUF_NAME(reason_str)), + "%T", reason); if (token != NIL && token != am_have_dt_utag) { tok_label = signed_val(SEQ_TRACE_T_LABEL(token)); tok_lastcnt = signed_val(SEQ_TRACE_T_LASTCNT(token)); @@ -1797,8 +1805,9 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy) DTRACE_CHARBUF(port_str, 64); DTRACE_CHARBUF(remote_str, 64); - erts_snprintf(port_str, sizeof(port_str), "%T", cid); - erts_snprintf(remote_str, sizeof(remote_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", cid); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), "%T", dep->sysname); DTRACE3(dist_port_not_busy, erts_this_node_sysname, port_str, remote_str); @@ -1855,9 +1864,11 @@ dsig_send(ErtsDSigData *dsdp, Eterm ctl, Eterm msg, int force_busy) DTRACE_CHARBUF(remote_str, 64); DTRACE_CHARBUF(pid_str, 16); - erts_snprintf(port_str, sizeof(port_str), "%T", cid); - erts_snprintf(remote_str, sizeof(remote_str), "%T", dep->sysname); - erts_snprintf(pid_str, sizeof(pid_str), "%T", c_p->common.id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", cid); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), + "%T", dep->sysname); + erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), + "%T", c_p->common.id); DTRACE4(dist_port_busy, erts_this_node_sysname, port_str, remote_str, pid_str); } @@ -1890,8 +1901,9 @@ dist_port_command(Port *prt, ErtsDistOutputBuf *obuf) DTRACE_CHARBUF(port_str, 64); DTRACE_CHARBUF(remote_str, 64); - erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id); - erts_snprintf(remote_str, sizeof(remote_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", prt->common.id); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), "%T", prt->dist_entry->sysname); DTRACE4(dist_output, erts_this_node_sysname, port_str, remote_str, size); @@ -1944,8 +1956,9 @@ dist_port_commandv(Port *prt, ErtsDistOutputBuf *obuf) DTRACE_CHARBUF(port_str, 64); DTRACE_CHARBUF(remote_str, 64); - erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id); - erts_snprintf(remote_str, sizeof(remote_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", prt->common.id); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), "%T", prt->dist_entry->sysname); DTRACE4(dist_outputv, erts_this_node_sysname, port_str, remote_str, size); @@ -2280,8 +2293,9 @@ erts_dist_port_not_busy(Port *prt) DTRACE_CHARBUF(port_str, 64); DTRACE_CHARBUF(remote_str, 64); - erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id); - erts_snprintf(remote_str, sizeof(remote_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", prt->common.id); + erts_snprintf(remote_str, sizeof(DTRACE_CHARBUF_NAME(remote_str)), "%T", prt->dist_entry->sysname); DTRACE3(dist_port_not_busy, erts_this_node_sysname, port_str, remote_str); @@ -3246,10 +3260,10 @@ send_nodes_mon_msgs(Process *c_p, Eterm what, Eterm node, Eterm type, Eterm reas DTRACE_CHARBUF(type_str, 12); DTRACE_CHARBUF(reason_str, 64); - erts_snprintf(what_str, sizeof(what_str), "%T", what); - erts_snprintf(node_str, sizeof(node_str), "%T", node); - erts_snprintf(type_str, sizeof(type_str), "%T", type); - erts_snprintf(reason_str, sizeof(reason_str), "%T", reason); + erts_snprintf(what_str, sizeof(DTRACE_CHARBUF_NAME(what_str)), "%T", what); + erts_snprintf(node_str, sizeof(DTRACE_CHARBUF_NAME(node_str)), "%T", node); + erts_snprintf(type_str, sizeof(DTRACE_CHARBUF_NAME(type_str)), "%T", type); + erts_snprintf(reason_str, sizeof(DTRACE_CHARBUF_NAME(reason_str)), "%T", reason); DTRACE5(dist_monitor, erts_this_node_sysname, what_str, node_str, type_str, reason_str); } diff --git a/erts/emulator/beam/erl_async.c b/erts/emulator/beam/erl_async.c index b3dc327704..decae6b2ca 100644 --- a/erts/emulator/beam/erl_async.c +++ b/erts/emulator/beam/erl_async.c @@ -292,7 +292,8 @@ static ERTS_INLINE void async_add(ErtsAsync *a, ErtsAsyncQ* q) if (DTRACE_ENABLED(aio_pool_add)) { DTRACE_CHARBUF(port_str, 16); - erts_snprintf(port_str, sizeof(port_str), "%T", a->port); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", a->port); /* DTRACE TODO: Get the queue length from erts_thr_q_enqueue() ? */ len = -1; DTRACE2(aio_pool_add, port_str, len); @@ -327,7 +328,8 @@ static ERTS_INLINE ErtsAsync *async_get(ErtsThrQ_t *q, if (DTRACE_ENABLED(aio_pool_get)) { DTRACE_CHARBUF(port_str, 16); - erts_snprintf(port_str, sizeof(port_str), "%T", a->port); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), + "%T", a->port); /* DTRACE TODO: Get the length from erts_thr_q_dequeue() ? */ len = -1; DTRACE2(aio_pool_get, port_str, len); diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c index 77627a6897..afb33c1cdb 100644 --- a/erts/emulator/beam/erl_bif_port.c +++ b/erts/emulator/beam/erl_bif_port.c @@ -882,7 +882,7 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump) DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); dtrace_proc_str(p, process_str); - erts_snprintf(port_str, sizeof(port_str), "%T", port->common.id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", port->common.id); DTRACE3(port_open, process_str, name_buf, port_str); } #endif diff --git a/erts/emulator/beam/erl_port_task.c b/erts/emulator/beam/erl_port_task.c index fb6048b41f..4e107b722d 100644 --- a/erts/emulator/beam/erl_port_task.c +++ b/erts/emulator/beam/erl_port_task.c @@ -2035,9 +2035,9 @@ begin_port_cleanup(Port *pp, ErtsPortTask **execqp, int *processing_busy_q_p) DTRACE_CHARBUF(pid_str, 16); ErtsProcList* plp2 = plp; - erts_snprintf(port_str, sizeof(port_str), "%T", pp->common.id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", pp->common.id); while (plp2 != NULL) { - erts_snprintf(pid_str, sizeof(pid_str), "%T", plp2->pid); + erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), "%T", plp2->pid); DTRACE2(process_port_unblocked, pid_str, port_str); } } diff --git a/erts/emulator/beam/erl_process.c b/erts/emulator/beam/erl_process.c index 37e1d07107..8bf0cc9491 100644 --- a/erts/emulator/beam/erl_process.c +++ b/erts/emulator/beam/erl_process.c @@ -11313,7 +11313,7 @@ send_exit_signal(Process *c_p, /* current process if and only dtrace_pid_str(from, sender_str); dtrace_proc_str(rp, receiver_str); - erts_snprintf(reason_buf, sizeof(reason_buf) - 1, "%T", reason); + erts_snprintf(reason_buf, sizeof(DTRACE_CHARBUF_NAME(reason_buf)) - 1, "%T", reason); DTRACE3(process_exit_signal, sender_str, receiver_str, reason_buf); } #endif diff --git a/erts/emulator/beam/io.c b/erts/emulator/beam/io.c index cd5060ebb3..999d2fb2f7 100644 --- a/erts/emulator/beam/io.c +++ b/erts/emulator/beam/io.c @@ -2473,7 +2473,7 @@ set_port_connected(int bang_op, DTRACE_CHARBUF(newprocess_str, DTRACE_TERM_BUF_SIZE); dtrace_pid_str(connect, process_str); - erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", prt->common.id); dtrace_proc_str(rp, newprocess_str); DTRACE4(port_connect, process_str, port_str, prt->name, newprocess_str); } @@ -3591,9 +3591,9 @@ erts_deliver_port_exit(Port *p, Eterm from, Eterm reason, int send_closed) DTRACE_CHARBUF(port_str, DTRACE_TERM_BUF_SIZE); DTRACE_CHARBUF(rreason_str, 64); - erts_snprintf(from_str, sizeof(from_str), "%T", from); + erts_snprintf(from_str, sizeof(DTRACE_CHARBUF_NAME(from_str)), "%T", from); dtrace_port_str(p, port_str); - erts_snprintf(rreason_str, sizeof(rreason_str), "%T", rreason); + erts_snprintf(rreason_str, sizeof(DTRACE_CHARBUF_NAME(rreason_str)), "%T", rreason); DTRACE4(port_exit, from_str, port_str, p->name, rreason_str); } #endif @@ -4660,7 +4660,7 @@ set_busy_port(ErlDrvPort dprt, int on) #ifdef USE_VM_PROBES if (DTRACE_ENABLED(port_busy)) { - erts_snprintf(port_str, sizeof(port_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", prt->common.id); DTRACE1(port_busy, port_str); } @@ -4673,7 +4673,7 @@ set_busy_port(ErlDrvPort dprt, int on) #ifdef USE_VM_PROBES if (DTRACE_ENABLED(port_not_busy)) { - erts_snprintf(port_str, sizeof(port_str), + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", prt->common.id); DTRACE1(port_not_busy, port_str); } @@ -4725,9 +4725,9 @@ erts_port_resume_procs(Port *prt) DTRACE_CHARBUF(pid_str, 16); ErtsProcList* plp2 = plp; - erts_snprintf(port_str, sizeof(port_str), "%T", prt->common.id); + erts_snprintf(port_str, sizeof(DTRACE_CHARBUF_NAME(port_str)), "%T", prt->common.id); while (plp2 != NULL) { - erts_snprintf(pid_str, sizeof(pid_str), "%T", plp2->pid); + erts_snprintf(pid_str, sizeof(DTRACE_CHARBUF_NAME(pid_str)), "%T", plp2->pid); DTRACE2(process_port_unblocked, pid_str, port_str); } } diff --git a/erts/emulator/drivers/common/gzio.c b/erts/emulator/drivers/common/gzio.c index ef539f8f9b..1ef1602ec9 100644 --- a/erts/emulator/drivers/common/gzio.c +++ b/erts/emulator/drivers/common/gzio.c @@ -230,6 +230,7 @@ local ErtsGzFile gz_open (path, mode) errno = 0; #if defined(FILENAMES_16BIT) { + FILE* efile_wfopen(const WCHAR* name, const WCHAR* mode); WCHAR wfmode[80]; int i = 0; int j; @@ -237,7 +238,7 @@ local ErtsGzFile gz_open (path, mode) wfmode[i++] = (WCHAR) fmode[j]; } wfmode[i++] = L'\0'; - s->file = _wfopen((WCHAR *)path, wfmode); + s->file = efile_wfopen((WCHAR *)path, wfmode); if (s->file == NULL) { return s->destroy(s), (ErtsGzFile)Z_NULL; } diff --git a/erts/emulator/drivers/common/zlib_drv.c b/erts/emulator/drivers/common/zlib_drv.c index 3fe5d282dc..3143e4511d 100644 --- a/erts/emulator/drivers/common/zlib_drv.c +++ b/erts/emulator/drivers/common/zlib_drv.c @@ -21,6 +21,9 @@ * ZLib interface for erlang * */ +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif #include <stdio.h> #include <zlib.h> #include <errno.h> diff --git a/erts/emulator/drivers/win32/win_efile.c b/erts/emulator/drivers/win32/win_efile.c index 480ba23239..a321bb9641 100644 --- a/erts/emulator/drivers/win32/win_efile.c +++ b/erts/emulator/drivers/win32/win_efile.c @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1997-2013. All Rights Reserved. + * Copyright Ericsson AB 1997-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -29,12 +29,27 @@ #include <wchar.h> #include "erl_efile.h" +#define DBG_TRACE_MASK 0 +/* 1 = file name ops + * 2 = file descr ops + * 4 = errors + * 8 = path name conversion + */ +#if !DBG_TRACE_MASK +# define DBG_TRACE(M,S) +# define DBG_TRACE1(M,FMT,A) +# define DBG_TRACE2(M,FMT,A,B) +#else +# define DBG_TRACE(M,S) do { if ((M)&DBG_TRACE_MASK) fwprintf(stderr, L"DBG_TRACE %d: %s\r\n", __LINE__, (WCHAR*)(S)); }while(0) +# define DBG_TRACE1(M,FMT,A) do { if ((M)&DBG_TRACE_MASK) fwprintf(stderr, L"DBG_TRACE %d: " L##FMT L"\r\n", __LINE__, (A)); }while(0) +# define DBG_TRACE2(M,FMT,A,B) do { if ((M)&DBG_TRACE_MASK) fwprintf(stderr, L"DBG_TRACE %d: " L##FMT L"\r\n", __LINE__, (A), (B)); }while(0) +#endif + /* * Microsoft-specific function to map a WIN32 error code to a Posix errno. */ #define ISSLASH(a) ((a) == L'\\' || (a) == L'/') - #define ISDIR(st) (((st).st_mode&S_IFMT) == S_IFDIR) #define ISREG(st) (((st).st_mode&S_IFMT) == S_IFREG) @@ -69,10 +84,92 @@ static int check_error(int result, Efile_error* errInfo); static int set_error(Efile_error* errInfo); +static int set_os_errno(Efile_error* errInfo, DWORD os_errno); static int is_root_unc_name(const WCHAR *path); static int extract_root(WCHAR *name); static unsigned short dos_to_posix_mode(int attr, const WCHAR *name); + +struct wpath_tmp_buffer { + struct wpath_tmp_buffer* next; + WCHAR buffer[1]; +}; + +typedef struct { + Efile_error* errInfo; + struct wpath_tmp_buffer* buf_list; +}Efile_call_state; + +static void call_state_init(Efile_call_state* state, Efile_error* errInfo) +{ + state->errInfo = errInfo; + state->buf_list = NULL; +} +static WCHAR* wpath_tmp_alloc(Efile_call_state* state, size_t len) +{ + size_t sz = offsetof(struct wpath_tmp_buffer, buffer) + + (len+1)*sizeof(WCHAR); + struct wpath_tmp_buffer* p = driver_alloc(sz); + p->next = state->buf_list; + state->buf_list = p; + return p->buffer; +} +static void call_state_free(Efile_call_state* state) +{ + while(state->buf_list) { + struct wpath_tmp_buffer* next = state->buf_list->next; + driver_free(state->buf_list); + state->buf_list = next; + } +} +static WCHAR* get_cwd_wpath_tmp(Efile_call_state* state) +{ + WCHAR dummy; + DWORD size = GetCurrentDirectoryW(0, &dummy); + WCHAR* ret = NULL; + + if (size) { + ret = wpath_tmp_alloc(state, size); + if (!GetCurrentDirectoryW(size, ret)) { + ret = NULL; + } + } + return ret; +} +static WCHAR* get_full_wpath_tmp(Efile_call_state* state, + const WCHAR* file, + WCHAR** file_part, + DWORD extra) +{ + WCHAR dummy; + DWORD size = GetFullPathNameW(file, 0, &dummy, NULL); + WCHAR* ret = NULL; + + if (size) { + int ok; + ret = wpath_tmp_alloc(state, size + extra); + if (file_part) { + ok = (GetFullPathNameW(file, size, ret, file_part) != 0); + } + else { + ok = (_wfullpath(ret, file, size) != NULL); + } + if (!ok) { + ret = NULL; + } + } + return ret; +} + +static void ensure_wpath_max(Efile_call_state* state, WCHAR** pathp, size_t max); +static int do_rmdir(Efile_call_state*, char* name); +static int do_rename(Efile_call_state*, char* src, char* dst); +static int do_readdir(Efile_call_state*, char* name, EFILE_DIR_HANDLE*, char* buffer, size_t *size); +static int do_fileinfo(Efile_call_state*, Efile_info*, char* orig_name, int info_for_link); +static char* do_readlink(Efile_call_state*, char* name, char* buffer, size_t size); +static int do_altname(Efile_call_state*, char* orig_name, char* buffer, size_t size); + + static int errno_map(DWORD last_error) { switch (last_error) { @@ -154,6 +251,8 @@ static int errno_map(DWORD last_error) { return EAGAIN; case ERROR_CANT_RESOLVE_FILENAME: return EMLINK; + case ERROR_PRIVILEGE_NOT_HELD: + return EPERM; case ERROR_ARENA_TRASHED: case ERROR_INVALID_BLOCK: case ERROR_BAD_ENVIRONMENT: @@ -176,11 +275,23 @@ check_error(int result, Efile_error* errInfo) if (result < 0) { errInfo->posix_errno = errno; errInfo->os_errno = GetLastError(); + DBG_TRACE2(4, "ERROR os_error=%d errno=%d @@@@@@@@@@@@@@@@@@@@@@@@@@@@", + errInfo->os_errno, errInfo->posix_errno); return 0; } return 1; } +static void +save_last_error(Efile_error* errInfo) +{ + errInfo->posix_errno = errno; + errInfo->os_errno = GetLastError(); + DBG_TRACE2(4, "ERROR os_error=%d errno=%d $$$$$$$$$$$$$$$$$$$$$$$$$$$$$", + errInfo->os_errno, errInfo->posix_errno); +} + + /* * Fills the provided error information structure with information * with the error code given by GetLastError() and its corresponding @@ -192,7 +303,18 @@ check_error(int result, Efile_error* errInfo) static int set_error(Efile_error* errInfo) { - errInfo->posix_errno = errno_map(errInfo->os_errno = GetLastError()); + set_os_errno(errInfo, GetLastError()); + return 0; +} + + +static int +set_os_errno(Efile_error* errInfo, DWORD os_errno) +{ + errInfo->os_errno = os_errno; + errInfo->posix_errno = errno_map(os_errno); + DBG_TRACE2(4, "ERROR os_error=%d errno=%d ############################", + errInfo->os_errno, errInfo->posix_errno); return 0; } @@ -226,21 +348,151 @@ win_writev(Efile_error* errInfo, } +/* Check '*pathp' and convert it if needed to something that windows will accept. + * Typically use UNC path with \\?\ prefix if absolute path is longer than 260. + */ +static void ensure_wpath(Efile_call_state* state, WCHAR** pathp) +{ + ensure_wpath_max(state, pathp, MAX_PATH); +} + +static void ensure_wpath_max(Efile_call_state* state, WCHAR** pathp, size_t max) +{ + WCHAR* path = *pathp; + WCHAR* p; + size_t len = wcslen(path); + int unc_fixup = 0; + + if (path[0] == 0) { + DBG_TRACE(8, L"Let empty path pass through"); + return; + } + + DBG_TRACE1(8,"IN: %s", path); + + if (path[1] == L':' && ISSLASH(path[2])) { /* absolute path */ + if (len >= max) { + WCHAR *src, *dst; + + *pathp = wpath_tmp_alloc(state, 4+len+1); + dst = *pathp; + wcscpy(dst, L"\\\\?\\"); + for (src=path,dst+=4; *src; src++) { + if (*src == L'/') { + if (dst[-1] != L'\\') { + *dst++ = L'\\'; + } + /*else ignore redundant slashes */ + } + else + *dst++ = *src; + } + *dst = 0; + unc_fixup = 1; + } + } + else if (!(ISSLASH(path[0]) && ISSLASH(path[1]))) { /* relative path */ + DWORD cwdLen = GetCurrentDirectoryW(0, NULL); + DWORD absLen = cwdLen + 1 + len; + if (absLen >= max) { + WCHAR *fullPath = wpath_tmp_alloc(state, 4+4+absLen); + DWORD fullLen; + + fullLen = GetFullPathNameW(path, 4 + absLen, fullPath+4, NULL); + if (fullLen >= 4+absLen) { + *pathp = path; + DBG_TRACE2(8,"ensure_wpath FAILED absLen=%u %s", (int)absLen, path); + return; + } + /* GetFullPathNameW can return paths longer than MAX_PATH without the \\?\ prefix. + * At least seen on Windows 7. Go figure... + */ + if (fullLen >= max && wcsncmp(fullPath+4, L"\\\\?\\", 4) != 0) { + wcsncpy(fullPath, L"\\\\?\\", 4); + *pathp = fullPath; + } + else { + *pathp = fullPath + 4; + } + } + } + + if (unc_fixup) { + WCHAR* endp; + + p = *pathp; + len = wcslen(p); + endp = p + len; + if (len > 4) { + p += 4; + while (*p) { + if (p[0] == L'\\' && p[1] == L'.') { + if (p[2] == L'\\' || !p[2]) { /* single dot */ + wmemmove(p, p+2, (&endp[1] - &p[2])); + endp -= 2; + } + else if (p[2] == L'.' && (p[3] == L'\\' || !p[3])) { /* double dot */ + WCHAR* r; + for (r=p-1; *r == L'\\'; --r) + /*skip redundant slashes*/; + for (; *r != L'\\'; --r) + /*find start of prev directory*/; + if (r < *pathp + 6) + break; + wmemmove(r, p+3, (&endp[1] - &p[3])); + p = r; + } + else p += 3; + } + else ++p; + } + } + } + DBG_TRACE1(8,"OUT: %s", *pathp); +} int efile_mkdir(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of directory to create. */ { - return check_error(_wmkdir((WCHAR *) name), errInfo); + Efile_call_state state; + WCHAR* wname = (WCHAR*)name; + int ret; + + DBG_TRACE(1, name); + call_state_init(&state, errInfo); + ensure_wpath_max(&state, &wname, 248); /* Yes, 248 limit for normal paths */ + + ret = (int) CreateDirectoryW(wname, NULL); + if (!ret) + set_error(errInfo); + + call_state_free(&state); + return ret; } int efile_rmdir(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of directory to delete. */ { + Efile_call_state state; + int ret; + + DBG_TRACE(1, name); + call_state_init(&state, errInfo); + ret = do_rmdir(&state, name); + call_state_free(&state); + return ret; +} + +static int do_rmdir(Efile_call_state* state, char* name) +{ OSVERSIONINFO os; DWORD attr; WCHAR *wname = (WCHAR *) name; + WCHAR *buffer = NULL; + + ensure_wpath(state, &wname); if (RemoveDirectoryW(wname) != FALSE) { return 1; @@ -270,10 +522,9 @@ efile_rmdir(Efile_error* errInfo, /* Where to return error codes. */ if (os.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS) { HANDLE handle; WIN32_FIND_DATAW data; - WCHAR buffer[2*MAX_PATH]; - int len; + int len = wcslen(wname); - len = wcslen(wname); + buffer = wpath_tmp_alloc(state, len + 4); wcscpy(buffer, wname); if (buffer[0] && buffer[len-1] != L'\\' && buffer[len-1] != L'/') { wcscat(buffer, L"\\"); @@ -311,16 +562,30 @@ efile_rmdir(Efile_error* errInfo, /* Where to return error codes. */ } end: - return check_error(-1, errInfo); + save_last_error(state->errInfo); + return 0; } int efile_delete_file(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of file to delete. */ { + Efile_call_state state; + int ret; + DBG_TRACE(1, name); + call_state_init(&state, errInfo); + ret = do_delete_file(&state, name); + call_state_free(&state); + return ret; +} + +static int do_delete_file(Efile_call_state* state, char* name) +{ DWORD attr; WCHAR *wname = (WCHAR *) name; + ensure_wpath(state, &wname); + if (DeleteFileW(wname) != FALSE) { return 1; } @@ -359,7 +624,7 @@ efile_delete_file(Efile_error* errInfo, /* Where to return error codes. */ errno = EACCES; } - return check_error(-1, errInfo); + return check_error(-1, state->errInfo); } /* @@ -393,14 +658,29 @@ efile_delete_file(Efile_error* errInfo, /* Where to return error codes. */ */ int -efile_rename(Efile_error* errInfo, /* Where to return error codes. */ - char* src, /* Original name. */ - char* dst) /* New name. */ +efile_rename(Efile_error* errInfo, char* src, char* dst) +{ + Efile_call_state state; + int ret; + DBG_TRACE(1, src); + call_state_init(&state, errInfo); + ret = do_rename(&state, src, dst); + call_state_free(&state); + return ret; +} + +static int +do_rename(Efile_call_state* state, + char* src, /* Original name. */ + char* dst) /* New name. */ { DWORD srcAttr, dstAttr; WCHAR *wsrc = (WCHAR *) src; WCHAR *wdst = (WCHAR *) dst; - + + ensure_wpath(state, &wsrc); + ensure_wpath(state, &wdst); + if (MoveFileW(wsrc, wdst) != FALSE) { return 1; } @@ -417,23 +697,27 @@ efile_rename(Efile_error* errInfo, /* Where to return error codes. */ if (errno == EBADF) { errno = EACCES; - return check_error(-1, errInfo); + return check_error(-1, state->errInfo); } if (errno == EACCES) { decode: if (srcAttr & FILE_ATTRIBUTE_DIRECTORY) { - WCHAR srcPath[MAX_PATH], dstPath[MAX_PATH]; + WCHAR *srcPath, *dstPath; WCHAR *srcRest, *dstRest; int size; - size = GetFullPathNameW(wsrc, MAX_PATH, srcPath, &srcRest); - if ((size == 0) || (size > MAX_PATH)) { - return check_error(-1, errInfo); + srcPath = get_full_wpath_tmp(state, wsrc, &srcRest, 0); + if (!srcPath) { + save_last_error(state->errInfo); + return 0; } - size = GetFullPathNameW(wdst, MAX_PATH, dstPath, &dstRest); - if ((size == 0) || (size > MAX_PATH)) { - return check_error(-1, errInfo); + + dstPath = get_full_wpath_tmp(state, wdst, &dstRest, 0); + if (!dstPath) { + save_last_error(state->errInfo); + return 0; } + if (srcRest == NULL) { srcRest = srcPath + wcslen(srcPath); } @@ -538,14 +822,16 @@ efile_rename(Efile_error* errInfo, /* Where to return error codes. */ * put temp file back to old name. */ - WCHAR tempName[MAX_PATH]; - int result, size; + WCHAR *tempName; + int result; WCHAR *rest; - size = GetFullPathNameW(wdst, MAX_PATH, tempName, &rest); - if ((size == 0) || (size > MAX_PATH) || (rest == NULL)) { - return check_error(-1, errInfo); + tempName = get_full_wpath_tmp(state, wdst, &rest, 14); + if (!tempName || !rest) { + save_last_error(state->errInfo); + return 0; } + *rest = L'\0'; result = -1; if (GetTempFileNameW(tempName, L"erlr", 0, tempName) != 0) { @@ -578,7 +864,6 @@ efile_rename(Efile_error* errInfo, /* Where to return error codes. */ /* * Decode the EACCES to a more meaningful error. */ - goto decode; } } @@ -586,16 +871,20 @@ efile_rename(Efile_error* errInfo, /* Where to return error codes. */ } } } - return check_error(-1, errInfo); + return check_error(-1, state->errInfo); } int efile_chdir(Efile_error* errInfo, /* Where to return error codes. */ char* name) /* Name of directory to make current. */ -{ - int success = check_error(_wchdir((WCHAR *) name), errInfo); - if (!success && errInfo->posix_errno == EINVAL) - /* POSIXification of errno */ +{
+ /* We don't even try to handle long paths here
+ * as current working directory is always limited to MAX_PATH
+ * even if we use UNC paths and SetCurrentDirectoryW()
+ */
+ int success = check_error(_wchdir((WCHAR *) name), errInfo);
+ if (!success && errInfo->posix_errno == EINVAL)
+ /* POSIXification of errno */
errInfo->posix_errno = ENOENT; return success; } @@ -608,28 +897,45 @@ efile_getdcwd(Efile_error* errInfo, /* Where to return error codes. */ { WCHAR *wbuffer = (WCHAR *) buffer; size_t wbuffer_size = size / 2; - if (_wgetdcwd(drive, wbuffer, wbuffer_size) == NULL) + DBG_TRACE(1, L"#getdcwd#"); + if (_wgetdcwd(drive, wbuffer, wbuffer_size) == NULL) { return check_error(-1, errInfo); + } + DBG_TRACE1(8, "getdcwd OS=%s", wbuffer); + if (wcsncmp(wbuffer, L"\\\\?\\", 4) == 0) { + wmemmove(wbuffer, wbuffer+4, wcslen(wbuffer+4)+1); + } for ( ; *wbuffer; wbuffer++) if (*wbuffer == L'\\') *wbuffer = L'/'; + DBG_TRACE1(8, "getdcwd ERLANG=%s", (WCHAR*)buffer); return 1; } int -efile_readdir(Efile_error* errInfo, /* Where to return error codes. */ - char* name, /* Name of directory to list */ - EFILE_DIR_HANDLE* dir_handle, /* Handle of opened directory or NULL */ - char* buffer, /* Buffer to put one filename in */ - size_t *size) /* in-out size of buffer/size of filename excluding zero - termination in bytes*/ +efile_readdir(Efile_error* errInfo, char* name, EFILE_DIR_HANDLE* dir_handle, + char* buffer, size_t *size) +{ + Efile_call_state state; + int ret; + DBG_TRACE(dir_handle?2:1, name); + call_state_init(&state, errInfo); + ret = do_readdir(&state, name, dir_handle, buffer, size); + call_state_free(&state); + return ret; +} + +static int do_readdir(Efile_call_state* state, + char* name, /* Name of directory to list */ + EFILE_DIR_HANDLE* dir_handle, /* Handle of opened directory or NULL */ + char* buffer, /* Buffer to put one filename in */ + size_t *size) /* in-out size of buffer/size of filename excluding zero + termination in bytes*/ { HANDLE dir; /* Handle to directory. */ - WCHAR wildcard[MAX_PATH]; /* Wildcard to search for. */ WIN32_FIND_DATAW findData; /* Data found by FindFirstFile() or FindNext(). */ /* Alignment is not honored, this works on x86 because of alignment fixup by processor. Not perfect, but faster than alinging by hand (really) */ - WCHAR *wname = (WCHAR *) name; WCHAR *wbuffer = (WCHAR *) buffer; /* @@ -637,13 +943,15 @@ efile_readdir(Efile_error* errInfo, /* Where to return error codes. */ */ if (*dir_handle == NULL) { - int length = wcslen(wname); + WCHAR *wname = (WCHAR *) name; + WCHAR* wildcard; + int length; WCHAR* s; - if (length+3 >= MAX_PATH) { - errno = ENAMETOOLONG; - return check_error(-1, errInfo); - } + ensure_wpath_max(state, &wname, MAX_PATH-2); + length = wcslen(wname); + + wildcard = wpath_tmp_alloc(state, length+3); wcscpy(wildcard, wname); s = wildcard+length-1; @@ -653,8 +961,10 @@ efile_readdir(Efile_error* errInfo, /* Where to return error codes. */ *++s = L'\0'; DEBUGF(("Reading %ws\n", wildcard)); dir = FindFirstFileW(wildcard, &findData); - if (dir == INVALID_HANDLE_VALUE) - return set_error(errInfo); + if (dir == INVALID_HANDLE_VALUE) { + set_error(state->errInfo); + return 0; + } *dir_handle = (EFILE_DIR_HANDLE) dir; if (!IS_DOT_OR_DOTDOT(findData.cFileName)) { @@ -664,7 +974,6 @@ efile_readdir(Efile_error* errInfo, /* Where to return error codes. */ } } - /* * Retrieve the name of the next file using the directory handle. */ @@ -681,24 +990,36 @@ efile_readdir(Efile_error* errInfo, /* Where to return error codes. */ } if (GetLastError() == ERROR_NO_MORE_FILES) { - FindClose(dir); - errInfo->posix_errno = errInfo->os_errno = 0; - return 0; + state->errInfo->posix_errno = state->errInfo->os_errno = 0; + } + else { + set_error(state->errInfo); } - - set_error(errInfo); FindClose(dir); return 0; } } int -efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ - char* name, /* Name of directory to open. */ - int flags, /* Flags to use for opening. */ - int* pfd, /* Where to store the file descriptor. */ - Sint64* pSize) /* Where to store the size of the file. */ +efile_openfile(Efile_error* errInfo, char* name, int flags, int* pfd, Sint64* pSize) { + Efile_call_state state; + int ret; + DBG_TRACE1(1, "openfile(%s)", name); + call_state_init(&state, errInfo); + ret = do_openfile(&state, name, flags, pfd, pSize); + call_state_free(&state); + return ret; +} + +static +int do_openfile(Efile_call_state* state, /* Where to return error codes. */ + char* name, /* Name of directory to open. */ + int flags, /* Flags to use for opening. */ + int* pfd, /* Where to store the file descriptor. */ + Sint64* pSize) /* Where to store the size of the file. */ +{ + Efile_error* errInfo = state->errInfo; BY_HANDLE_FILE_INFORMATION fileInfo; /* File information from a handle. */ HANDLE fd; /* Handle to open file. */ DWORD access; /* Access mode: GENERIC_READ, GENERIC_WRITE. */ @@ -735,6 +1056,7 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ if (flags & EFILE_MODE_EXCL) { crFlags = CREATE_NEW; } + ensure_wpath(state, &wname); fd = CreateFileW(wname, access, FILE_SHARE_FLAGS, NULL, crFlags, flagsAndAttrs, NULL); @@ -777,34 +1099,56 @@ efile_openfile(Efile_error* errInfo, /* Where to return error codes. */ } int -efile_may_openfile(Efile_error* errInfo, char *name) { +efile_may_openfile(Efile_error* errInfo, char *name) +{ + Efile_call_state state; WCHAR *wname = (WCHAR *) name; DWORD attr; + int ret; + DBG_TRACE(1, name); + call_state_init(&state, errInfo); + ensure_wpath(&state, &wname); if ((attr = GetFileAttributesW(wname)) == INVALID_FILE_ATTRIBUTES) { errno = ENOENT; - return check_error(-1, errInfo); + ret = check_error(-1, errInfo); } - - if (attr & FILE_ATTRIBUTE_DIRECTORY) { + else if (attr & FILE_ATTRIBUTE_DIRECTORY) { errno = EISDIR; - return check_error(-1, errInfo); + ret = check_error(-1, errInfo); } - return 1; + else ret = 1; + + call_state_free(&state); + return ret; } void efile_closefile(fd) int fd; /* File descriptor for file to close. */ { + DBG_TRACE(2, L""); CloseHandle((HANDLE) fd); } +FILE* efile_wfopen(const WCHAR* name, const WCHAR* mode) +{ + Efile_call_state state; + Efile_error dummy; + FILE* f; + call_state_init(&state, &dummy); + ensure_wpath(&state, (WCHAR**)&name); + f = _wfopen(name, mode); + call_state_free(&state); + return f; +} + int efile_fdatasync(errInfo, fd) Efile_error* errInfo; /* Where to return error codes. */ int fd; /* File descriptor for file to sync. */ { + DBG_TRACE(2, L""); /* Not available in Windows, just call regular fsync */ return efile_fsync(errInfo, fd); } @@ -814,6 +1158,7 @@ efile_fsync(errInfo, fd) Efile_error* errInfo; /* Where to return error codes. */ int fd; /* File descriptor for file to sync. */ { + DBG_TRACE(2, L""); if (!FlushFileBuffers((HANDLE) fd)) { return check_error(-1, errInfo); } @@ -824,64 +1169,87 @@ int efile_fileinfo(Efile_error* errInfo, Efile_info* pInfo, char* orig_name, int info_for_link) { + Efile_call_state state; + int ret; + DBG_TRACE(1, L""); + call_state_init(&state, errInfo); + ret = do_fileinfo(&state, pInfo, orig_name, info_for_link); + call_state_free(&state); + return ret; +} + +static int +do_fileinfo(Efile_call_state* state, Efile_info* pInfo, + char* orig_name, int info_for_link) +{ + Efile_error* errInfo = state->errInfo; HANDLE findhandle; /* Handle returned by FindFirstFile(). */ WIN32_FIND_DATAW findbuf; /* Data return by FindFirstFile(). */ - WCHAR name[_MAX_PATH]; + WCHAR* name = NULL; + WCHAR* win_path; int name_len; - WCHAR *path; - WCHAR pathbuf[_MAX_PATH]; int drive; /* Drive for filename (1 = A:, 2 = B: etc). */ - WCHAR *worig_name = (WCHAR *) orig_name; + WCHAR *worig_name = (WCHAR *) orig_name; + ensure_wpath(state, &worig_name); /* Don't allow wildcards to be interpreted by system */ - if (wcspbrk(worig_name, L"?*")) { - enoent: - errInfo->posix_errno = ENOENT; - errInfo->os_errno = ERROR_FILE_NOT_FOUND; - return 0; - } /* * Move the name to a buffer and make sure to remove a trailing * slash, because it causes FindFirstFile() to fail on Win95. */ - if ((name_len = wcslen(worig_name)) >= _MAX_PATH) { - goto enoent; - } else { - wcscpy(name, worig_name); - if (name_len > 2 && ISSLASH(name[name_len-1]) && - name[name_len-2] != L':') { - name[name_len-1] = L'\0'; - } + name_len = wcslen(worig_name); + + name = wpath_tmp_alloc(state, name_len+1); + wcscpy(name, worig_name); + if (name_len > 2 && ISSLASH(name[name_len-1]) && + name[name_len-2] != L':') { + name[name_len-1] = L'\0'; } - + + win_path = name; + if (wcsncmp(name, L"\\\\?\\", 4) == 0) { + win_path += 4; + } + + if (wcspbrk(win_path, L"?*")) { + enoent: + errInfo->posix_errno = ENOENT; + errInfo->os_errno = ERROR_FILE_NOT_FOUND; + return 0; + } + /* Try to get disk from name. If none, get current disk. */ - if (name[1] != L':') { + if (win_path[1] != L':') { + WCHAR* cwd_path = get_cwd_wpath_tmp(state); drive = 0; - if (GetCurrentDirectoryW(_MAX_PATH, pathbuf) && - pathbuf[1] == L':') { - drive = towlower(pathbuf[0]) - L'a' + 1; + if (cwd_path[1] == L':') { + drive = towlower(cwd_path[0]) - L'a' + 1; } - } else if (*name && name[2] == L'\0') { + } else if (*win_path && win_path[2] == L'\0') { /* * X: and nothing more is an error. */ errInfo->posix_errno = ENOENT; errInfo->os_errno = ERROR_FILE_NOT_FOUND; return 0; - } else - drive = towlower(*name) - L'a' + 1; + } else { + drive = towlower(*win_path) - L'a' + 1; + } findhandle = FindFirstFileW(name, &findbuf); if (findhandle == INVALID_HANDLE_VALUE) { + WCHAR* path = NULL; + if (!(wcspbrk(name, L"./\\") && - (path = _wfullpath(pathbuf, name, _MAX_PATH)) && + (path = get_full_wpath_tmp(state, name, NULL, 0)) && /* root dir. ('C:\') or UNC root dir. ('\\server\share\') */ ((wcslen(path) == 3) || is_root_unc_name(path)) && (GetDriveTypeW(path) > 1) ) ) { + errInfo->posix_errno = ENOENT; errInfo->os_errno = ERROR_FILE_NOT_FOUND; return 0; @@ -908,13 +1276,11 @@ efile_fileinfo(Efile_error* errInfo, Efile_info* pInfo, /* * given that we know this is a symlink, we should be able to find its target */ - WCHAR target_name[_MAX_PATH]; - if (efile_readlink(errInfo, (char *) name, - (char *) target_name, - _MAX_PATH * sizeof(WCHAR)) == 1) { + WCHAR* target_name = (WCHAR*) do_readlink(state, (char *) name, NULL, 0); + if (target_name) { FindClose(findhandle); - return efile_fileinfo(errInfo, pInfo, - (char *) target_name, info_for_link); + return do_fileinfo(state, pInfo, + (char *) target_name, info_for_link); } } @@ -981,6 +1347,20 @@ efile_write_info(Efile_error* errInfo, Efile_info* pInfo, char* name) { + Efile_call_state state; + int ret; + call_state_init(&state, errInfo); + ret = do_write_info(&state, pInfo, name); + call_state_free(&state); + return ret; +} + +static int +do_write_info(Efile_call_state* state, + Efile_info* pInfo, + char* name) +{ + Efile_error* errInfo = state->errInfo; SYSTEMTIME timebuf; FILETIME ModifyFileTime; FILETIME AccessFileTime; @@ -990,6 +1370,10 @@ efile_write_info(Efile_error* errInfo, DWORD tempAttr; WCHAR *wname = (WCHAR *) name; + DBG_TRACE(1, name); + + ensure_wpath(state, &wname); + /* * Get the attributes for the file. */ @@ -1066,7 +1450,9 @@ char* buf; /* Buffer to write. */ size_t count; /* Number of bytes to write. */ Sint64 offset; /* where to write it */ { - int res = efile_seek(errInfo, fd, offset, EFILE_SEEK_SET, NULL); + int res; + DBG_TRACE(2, L""); + res = efile_seek(errInfo, fd, offset, EFILE_SEEK_SET, NULL); if (res) { return efile_write(errInfo, EFILE_MODE_WRITE, fd, buf, count); } else { @@ -1084,7 +1470,9 @@ char* buf; /* Buffer to read into. */ size_t count; /* Number of bytes to read. */ size_t* pBytesRead; /* Where to return number of bytes read. */ { - int res = efile_seek(errInfo, fd, offset, EFILE_SEEK_SET, NULL); + int res; + DBG_TRACE(2, L""); + res = efile_seek(errInfo, fd, offset, EFILE_SEEK_SET, NULL); if (res) { return efile_read(errInfo, EFILE_MODE_READ, fd, buf, count, pBytesRead); } else { @@ -1106,6 +1494,7 @@ size_t count; /* Number of bytes to write. */ OVERLAPPED overlapped; OVERLAPPED* pOverlapped = NULL; + DBG_TRACE(2, L""); if (flags & EFILE_MODE_APPEND) { memset(&overlapped, 0, sizeof(overlapped)); overlapped.Offset = 0xffffffff; @@ -1135,6 +1524,7 @@ efile_writev(Efile_error* errInfo, /* Where to return error codes */ OVERLAPPED overlapped; OVERLAPPED* pOverlapped = NULL; + DBG_TRACE(2, L""); ASSERT(iovcnt >= 0); if (flags & EFILE_MODE_APPEND) { @@ -1171,6 +1561,8 @@ size_t count; /* Number of bytes to read. */ size_t* pBytesRead; /* Where to return number of bytes read. */ { DWORD nbytes = 0; + + DBG_TRACE(2, L""); if (!ReadFile((HANDLE) fd, buf, count, &nbytes, NULL)) return set_error(errInfo); @@ -1190,6 +1582,7 @@ Sint64* new_location; /* Resulting new location in file. */ { LARGE_INTEGER off, new_loc; + DBG_TRACE(2, L""); switch (origin) { case EFILE_SEEK_SET: origin = FILE_BEGIN; break; case EFILE_SEEK_CUR: origin = FILE_CURRENT; break; @@ -1221,6 +1614,7 @@ Efile_error* errInfo; /* Where to return error codes. */ int *fd; /* File descriptor for file to truncate. */ int flags; { + DBG_TRACE(2, L""); if (!SetEndOfFile((HANDLE) (*fd))) return set_error(errInfo); return 1; @@ -1373,9 +1767,24 @@ dos_to_posix_mode(int attr, const WCHAR *name) return uxmode; } + int efile_readlink(Efile_error* errInfo, char* name, char* buffer, size_t size) { + Efile_call_state state; + int ret; + DBG_TRACE(1, name); + call_state_init(&state, errInfo); + ret = !!do_readlink(&state, name, buffer, size); + call_state_free(&state); + return ret; +} + +/* If buffer==0, return buffer allocated by wpath_tmp_allocate +*/ +static char* +do_readlink(Efile_call_state* state, char* name, char* buffer, size_t size) +{ /* * load dll and see if we have CreateSymbolicLink at runtime: * (Vista only) @@ -1383,6 +1792,9 @@ efile_readlink(Efile_error* errInfo, char* name, char* buffer, size_t size) HINSTANCE hModule = NULL; WCHAR *wname = (WCHAR *) name; WCHAR *wbuffer = (WCHAR *) buffer; + DWORD wsize = size / sizeof(WCHAR); + char* ret = NULL; + if ((hModule = LoadLibrary("kernel32.dll")) != NULL) { typedef DWORD (WINAPI * GETFINALPATHNAMEBYHANDLEPTR)( HANDLE hFile, @@ -1393,58 +1805,84 @@ efile_readlink(Efile_error* errInfo, char* name, char* buffer, size_t size) GETFINALPATHNAMEBYHANDLEPTR pGetFinalPathNameByHandle = (GETFINALPATHNAMEBYHANDLEPTR)GetProcAddress(hModule, "GetFinalPathNameByHandleW"); - if (pGetFinalPathNameByHandle == NULL) { - FreeLibrary(hModule); - } else { + if (pGetFinalPathNameByHandle != NULL) { + DWORD fileAttributes; + ensure_wpath(state, &wname); /* first check if file is a symlink; {error, einval} otherwise */ - DWORD fileAttributes = GetFileAttributesW(wname); + fileAttributes = GetFileAttributesW(wname); if ((fileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)) { - BOOLEAN success = 0; + DWORD success = 0; HANDLE h = CreateFileW(wname, GENERIC_READ, FILE_SHARE_FLAGS, NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS, NULL); int len; if(h != INVALID_HANDLE_VALUE) { - success = pGetFinalPathNameByHandle(h, wbuffer, size / sizeof(WCHAR),0); - /* GetFinalPathNameByHandle prepends path with "\\?\": */ - len = wcslen(wbuffer); - wmemmove(wbuffer,wbuffer+4,len-3); - if (len - 4 >= 2 && wbuffer[1] == L':' && wbuffer[0] >= L'A' && - wbuffer[0] <= L'Z') { - wbuffer[0] = wbuffer[0] + L'a' - L'A'; + if (!wbuffer) { /* dynamic allocation */ + WCHAR dummy; + wsize = pGetFinalPathNameByHandle(h, &dummy, 0, 0); + if (wsize) { + wbuffer = wpath_tmp_alloc(state, wsize); + } } + if (wbuffer + && (success = pGetFinalPathNameByHandle(h, wbuffer, wsize, 0)) + && success < wsize) { + WCHAR* wp; + + /* GetFinalPathNameByHandle prepends path with "\\?\": */ + len = wcslen(wbuffer); + wmemmove(wbuffer,wbuffer+4,len-3); + if (len - 4 >= 2 && wbuffer[1] == L':' && wbuffer[0] >= L'A' && + wbuffer[0] <= L'Z') { + wbuffer[0] = wbuffer[0] + L'a' - L'A'; + } - for ( ; *wbuffer; wbuffer++) - if (*wbuffer == L'\\') - *wbuffer = L'/'; + for (wp=wbuffer ; *wp; wp++) + if (*wp == L'\\') + *wp = L'/'; + } CloseHandle(h); - } - FreeLibrary(hModule); + } if (success) { - return 1; + ret = (char*) wbuffer; } else { - return set_error(errInfo); + set_error(state->errInfo); } } else { - FreeLibrary(hModule); errno = EINVAL; - return check_error(-1, errInfo); + save_last_error(state->errInfo); } + goto done; } } errno = ENOTSUP; - return check_error(-1, errInfo); + save_last_error(state->errInfo); + +done: + if (hModule) + FreeLibrary(hModule); + return ret; } int efile_altname(Efile_error* errInfo, char* orig_name, char* buffer, size_t size) { + Efile_call_state state; + int ret; + DBG_TRACE(1, orig_name); + call_state_init(&state, errInfo); + ret = do_altname(&state, orig_name, buffer, size); + call_state_free(&state); + return ret; +} + +static int +do_altname(Efile_call_state* state, char* orig_name, char* buffer, size_t size) +{ WIN32_FIND_DATAW wfd; HANDLE fh; - WCHAR name[_MAX_PATH+1]; + WCHAR* name; int name_len; - WCHAR* path; - WCHAR pathbuf[_MAX_PATH+1]; /* Unclear weather GetCurrentDirectory will access one char after - _MAX_PATH */ + WCHAR* full_path = NULL; WCHAR *worig_name = (WCHAR *) orig_name; WCHAR *wbuffer = (WCHAR *) buffer; int drive; /* Drive for filename (1 = A:, 2 = B: etc). */ @@ -1453,8 +1891,8 @@ efile_altname(Efile_error* errInfo, char* orig_name, char* buffer, size_t size) if (wcspbrk(worig_name, L"?*")) { enoent: - errInfo->posix_errno = ENOENT; - errInfo->os_errno = ERROR_FILE_NOT_FOUND; + state->errInfo->posix_errno = ENOENT; + state->errInfo->os_errno = ERROR_FILE_NOT_FOUND; return 0; } @@ -1462,24 +1900,23 @@ efile_altname(Efile_error* errInfo, char* orig_name, char* buffer, size_t size) * Move the name to a buffer and make sure to remove a trailing * slash, because it causes FindFirstFile() to fail on Win95. */ - - if ((name_len = wcslen(worig_name)) >= _MAX_PATH) { - goto enoent; - } else { - wcscpy(name, worig_name); - if (name_len > 2 && ISSLASH(name[name_len-1]) && - name[name_len-2] != L':') { - name[name_len-1] = L'\0'; - } + ensure_wpath(state, &worig_name); + name_len = wcslen(worig_name); + + name = wpath_tmp_alloc(state, name_len + 1); + wcscpy(name, worig_name); + if (name_len > 2 && ISSLASH(name[name_len-1]) && + name[name_len-2] != L':') { + name[name_len-1] = L'\0'; } /* Try to get disk from name. If none, get current disk. */ if (name[1] != L':') { + WCHAR* cwd_path = get_cwd_wpath_tmp(state); drive = 0; - if (GetCurrentDirectoryW(_MAX_PATH, pathbuf) && - pathbuf[1] == L':') { - drive = towlower(pathbuf[0]) - L'a' + 1; + if (cwd_path[1] == L':') { + drive = towlower(cwd_path[0]) - L'a' + 1; } } else if (*name && name[2] == L'\0') { /* @@ -1491,13 +1928,15 @@ efile_altname(Efile_error* errInfo, char* orig_name, char* buffer, size_t size) } fh = FindFirstFileW(name,&wfd); if (fh == INVALID_HANDLE_VALUE) { + DWORD fff_error = GetLastError(); if (!(wcspbrk(name, L"./\\") && - (path = _wfullpath(pathbuf, name, _MAX_PATH)) && + (full_path = get_full_wpath_tmp(state, name, NULL, 0)) && /* root dir. ('C:\') or UNC root dir. ('\\server\share\') */ - ((wcslen(path) == 3) || is_root_unc_name(path)) && - (GetDriveTypeW(path) > 1) ) ) { - errno = errno_map(GetLastError()); - return check_error(-1, errInfo); + ((wcslen(full_path) == 3) || is_root_unc_name(full_path)) && + (GetDriveTypeW(full_path) > 1) ) ) { + + set_os_errno(state->errInfo, fff_error); + return 0; } /* * Root directories (such as C:\ or \\server\share\ are fabricated. @@ -1518,17 +1957,37 @@ efile_altname(Efile_error* errInfo, char* orig_name, char* buffer, size_t size) int efile_link(Efile_error* errInfo, char* old, char* new) { + Efile_call_state state; WCHAR *wold = (WCHAR *) old; WCHAR *wnew = (WCHAR *) new; + int ret; + DBG_TRACE(1, old); + call_state_init(&state, errInfo); + ensure_wpath(&state, &wold); + ensure_wpath(&state, &wnew); if(!CreateHardLinkW(wnew, wold, NULL)) { - return set_error(errInfo); + ret = set_error(errInfo); } - return 1; + else ret =1; + call_state_free(&state); + return ret; } int efile_symlink(Efile_error* errInfo, char* old, char* new) { + Efile_call_state state; + int ret; + DBG_TRACE2(1, "symlink(%s <- %s)", old, new); + call_state_init(&state, errInfo); + ret = do_symlink(&state, old, new); + call_state_free(&state); + return ret; +} + +static int +do_symlink(Efile_call_state* state, char* old, char* new) +{ /* * Load dll and see if we have CreateSymbolicLink at runtime: * (Vista only) @@ -1536,6 +1995,8 @@ efile_symlink(Efile_error* errInfo, char* old, char* new) HINSTANCE hModule = NULL; WCHAR *wold = (WCHAR *) old; WCHAR *wnew = (WCHAR *) new; + + DBG_TRACE(1, old); if ((hModule = LoadLibrary("kernel32.dll")) != NULL) { typedef BOOLEAN (WINAPI * CREATESYMBOLICLINKFUNCPTR) ( LPCWSTR lpSymlinkFileName, @@ -1547,6 +2008,9 @@ efile_symlink(Efile_error* errInfo, char* old, char* new) "CreateSymbolicLinkW"); /* A for MBCS, W for UNICODE... char* above implies 'W'! */ if (pCreateSymbolicLink != NULL) { + ensure_wpath(state, &wold); + ensure_wpath(state, &wnew); + { DWORD attr = GetFileAttributesW(wold); int flag = (attr != INVALID_FILE_ATTRIBUTES && attr & FILE_ATTRIBUTE_DIRECTORY) ? 1 : 0; @@ -1557,19 +2021,21 @@ efile_symlink(Efile_error* errInfo, char* old, char* new) if (success) { return 1; } else { - return set_error(errInfo); + return set_error(state->errInfo); } + } } else FreeLibrary(hModule); } errno = ENOTSUP; - return check_error(-1, errInfo); + return check_error(-1, state->errInfo); } int efile_fadvise(Efile_error* errInfo, int fd, Sint64 offset, Sint64 length, int advise) { + DBG_TRACE(2, L""); /* posix_fadvise is not available on Windows, do nothing */ errno = ERROR_SUCCESS; return check_error(0, errInfo); @@ -1578,6 +2044,7 @@ efile_fadvise(Efile_error* errInfo, int fd, Sint64 offset, int efile_fallocate(Efile_error* errInfo, int fd, Sint64 offset, Sint64 length) { + DBG_TRACE(2, L""); /* No file preallocation method available in Windows. */ errno = errno_map(ERROR_NOT_SUPPORTED); SetLastError(ERROR_NOT_SUPPORTED); diff --git a/erts/emulator/sys/win32/erl_win_sys.h b/erts/emulator/sys/win32/erl_win_sys.h index 8015e8f378..a78dbf64af 100644 --- a/erts/emulator/sys/win32/erl_win_sys.h +++ b/erts/emulator/sys/win32/erl_win_sys.h @@ -1,7 +1,7 @@ /* * %CopyrightBegin% * - * Copyright Ericsson AB 1997-2012. All Rights Reserved. + * Copyright Ericsson AB 1997-2014. All Rights Reserved. * * The contents of this file are subject to the Erlang Public License, * Version 1.1, (the "License"); you may not use this file except in @@ -60,16 +60,18 @@ #include <windows.h> #undef WIN32_LEAN_AND_MEAN -/* - * Define MAXPATHLEN in terms of MAXPATH if available. - */ - -#ifndef MAXPATH -#define MAXPATH MAX_PATH -#endif /* MAXPATH */ #ifndef MAXPATHLEN -#define MAXPATHLEN MAXPATH +#define MAXPATHLEN 4096 +/* + erts-6.0 (OTP 17.0): + We now accept windows paths longer than 260 (MAX_PATH) by conversion to + UNC path format. In order to also return long paths from the driver we + increased MAXPATHLEN from 260 to larger (but arbitrary) value 4096. + It would of course be nicer to instead dynamically allocate large enough + tmp buffers when efile_drv needs to return really long paths, and do that + for unix as well. + */ #endif /* MAXPATHLEN */ /* diff --git a/erts/start_scripts/no_dot_erlang.rel.src b/erts/start_scripts/no_dot_erlang.rel.src index 03b64ebf1a..6208572c00 100644 --- a/erts/start_scripts/no_dot_erlang.rel.src +++ b/erts/start_scripts/no_dot_erlang.rel.src @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2013. All Rights Reserved. +%% Copyright Ericsson AB 2013-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -16,6 +16,6 @@ %% %% %CopyrightEnd% %% -{release, {"OTP APN 181 01","%SYS_VSN%"}, {erts, "%ERTS_VSN%"}, +{release, {"Erlang/OTP","%SYS_VSN%"}, {erts, "%ERTS_VSN%"}, [{kernel,"%KERNEL_VSN%"}, {stdlib,"%STDLIB_VSN%"}]}. diff --git a/erts/start_scripts/start_all_example.rel.src b/erts/start_scripts/start_all_example.rel.src index 581eb2eb0b..2a1cabe7bb 100644 --- a/erts/start_scripts/start_all_example.rel.src +++ b/erts/start_scripts/start_all_example.rel.src @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -16,7 +16,7 @@ %% %% %CopyrightEnd% %% -{release, {"OTP APN 181 01","%SYS_VSN%"}, {erts, "%ERTS_VSN%"}, +{release, {"Erlang/OTP","%SYS_VSN%"}, {erts, "%ERTS_VSN%"}, [{kernel,"%KERNEL_VSN%"}, {stdlib,"%STDLIB_VSN%"}, {sasl, "%SASL_VSN%"}, diff --git a/erts/start_scripts/start_clean.rel.src b/erts/start_scripts/start_clean.rel.src index d2df422c51..e229721e36 100644 --- a/erts/start_scripts/start_clean.rel.src +++ b/erts/start_scripts/start_clean.rel.src @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -16,6 +16,6 @@ %% %% %CopyrightEnd% %% -{release, {"OTP APN 181 01","%SYS_VSN%"}, {erts, "%ERTS_VSN%"}, +{release, {"Erlang/OTP","%SYS_VSN%"}, {erts, "%ERTS_VSN%"}, [{kernel,"%KERNEL_VSN%"}, {stdlib,"%STDLIB_VSN%"}]}. diff --git a/erts/start_scripts/start_sasl.rel.src b/erts/start_scripts/start_sasl.rel.src index e521e8df91..e68a34af76 100644 --- a/erts/start_scripts/start_sasl.rel.src +++ b/erts/start_scripts/start_sasl.rel.src @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2009. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -16,7 +16,7 @@ %% %% %CopyrightEnd% %% -{release, {"OTP APN 181 01","%SYS_VSN%"}, {erts, "%ERTS_VSN%"}, +{release, {"Erlang/OTP","%SYS_VSN%"}, {erts, "%ERTS_VSN%"}, [{kernel,"%KERNEL_VSN%"}, {stdlib,"%STDLIB_VSN%"}, {sasl, "%SASL_VSN%"}]}. diff --git a/lib/asn1/src/asn1ct_gen.erl b/lib/asn1/src/asn1ct_gen.erl index 4707e517b4..44b050e59d 100644 --- a/lib/asn1/src/asn1ct_gen.erl +++ b/lib/asn1/src/asn1ct_gen.erl @@ -1125,7 +1125,22 @@ pgen_info() -> open_hrl(OutFile,Module) -> File = lists:concat([OutFile,".hrl"]), _ = open_output_file(File), - gen_hrlhead(Module). + gen_hrlhead(Module), + Protector = hrl_protector(OutFile), + emit(["-ifndef(",Protector,").\n", + "-define(",Protector,", true).\n" + "\n"]). + +hrl_protector(OutFile) -> + BaseName = filename:basename(OutFile), + P = "_" ++ string:to_upper(BaseName) ++ "_HRL_", + [if + $A =< C, C =< $Z -> C; + $a =< C, C =< $a -> C; + $0 =< C, C =< $9 -> C; + true -> $_ + end || C <- P]. + %% EMIT functions ************************ %% *************************************** @@ -1232,6 +1247,8 @@ pgen_hrl(Erules,Module,TypeOrVal,Options,_Indent) -> 0 -> 0; Y -> + Protector = hrl_protector(get(outfile)), + emit(["-endif. %% ",Protector,"\n"]), close_output_file(), asn1ct:verbose("--~p--~n", [{generated,lists:concat([get(outfile),".hrl"])}], diff --git a/lib/common_test/src/ct_conn_log_h.erl b/lib/common_test/src/ct_conn_log_h.erl index d733df27dc..cff02a46d9 100644 --- a/lib/common_test/src/ct_conn_log_h.erl +++ b/lib/common_test/src/ct_conn_log_h.erl @@ -204,13 +204,8 @@ pretty_head({{{Y,Mo,D},{H,Mi,S}},MicroS},ConnMod,Text0) -> micro2milli(MicroS)]). pretty_title(#conn_log{client=Client}=Info) -> - case actionstr(Info) of - {no_server,Action} -> - io_lib:format("= Client ~w ~s ",[Client,Action]); - Action -> - io_lib:format("= Client ~w ~s ~ts ",[Client,Action, - serverstr(Info)]) - end. + io_lib:format("= Client ~w ~s ~ts ", + [Client,actionstr(Info),serverstr(Info)]). actionstr(#conn_log{action=send}) -> "----->"; actionstr(#conn_log{action=cmd}) -> "----->"; diff --git a/lib/common_test/src/ct_framework.erl b/lib/common_test/src/ct_framework.erl index 63bfea68c4..7d577462b0 100644 --- a/lib/common_test/src/ct_framework.erl +++ b/lib/common_test/src/ct_framework.erl @@ -249,8 +249,8 @@ init_tc2(Mod,Suite,Func,SuiteInfo,MergeResult,Config) -> end end. -ct_suite_init(Suite, Func, PostInitHook, Config) when is_list(Config) -> - case ct_hooks:init_tc(Suite, Func, Config) of +ct_suite_init(Suite, FuncSpec, PostInitHook, Config) when is_list(Config) -> + case ct_hooks:init_tc(Suite, FuncSpec, Config) of NewConfig when is_list(NewConfig) -> PostInitHookResult = do_post_init_hook(PostInitHook, NewConfig), {ok, [PostInitHookResult ++ NewConfig]}; @@ -660,10 +660,7 @@ end_tc(Mod,Func,TCPid,Result,Args,Return) -> ct_util:delete_testdata(comment), ct_util:delete_suite_data(last_saved_config), - FuncSpec = case group_or_func(Func,Args) of - {_,_GroupName,_} = Group -> Group; - _ -> Func - end, + FuncSpec = group_or_func(Func,Args), {Result1,FinalNotify} = case ct_hooks:end_tc( diff --git a/lib/common_test/src/ct_gen_conn.erl b/lib/common_test/src/ct_gen_conn.erl index 239f5b5f25..56082086f6 100644 --- a/lib/common_test/src/ct_gen_conn.erl +++ b/lib/common_test/src/ct_gen_conn.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2003-2013. All Rights Reserved. +%% Copyright Ericsson AB 2003-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -307,7 +307,8 @@ call(Pid, Msg, Timeout) -> end. return({To,Ref},Result) -> - To ! {Ref, Result}. + To ! {Ref, Result}, + ok. init_gen(Parent,Opts) -> process_flag(trap_exit,true), diff --git a/lib/common_test/src/ct_hooks.erl b/lib/common_test/src/ct_hooks.erl index 2e667030a9..df4c98d9d1 100644 --- a/lib/common_test/src/ct_hooks.erl +++ b/lib/common_test/src/ct_hooks.erl @@ -64,11 +64,16 @@ terminate(Hooks) -> %% @doc Called as each test case is started. This includes all configuration %% tests. --spec init_tc(Mod :: atom(), Func :: atom(), Args :: list()) -> +-spec init_tc(Mod :: atom(), + FuncSpec :: atom() | + {ConfigFunc :: init_per_group | end_per_group, + GroupName :: atom(), + Properties :: list()}, + Args :: list()) -> NewConfig :: proplists:proplist() | - {skip, Reason :: term()} | - {auto_skip, Reason :: term()} | - {fail, Reason :: term()}. + {skip, Reason :: term()} | + {auto_skip, Reason :: term()} | + {fail, Reason :: term()}. init_tc(Mod, init_per_suite, Config) -> Info = try proplists:get_value(ct_hooks, Mod:suite(),[]) of @@ -82,8 +87,8 @@ init_tc(Mod, init_per_suite, Config) -> call(fun call_generic/3, Config ++ Info, [pre_init_per_suite, Mod]); init_tc(Mod, end_per_suite, Config) -> call(fun call_generic/3, Config, [pre_end_per_suite, Mod]); -init_tc(Mod, {init_per_group, GroupName, Opts}, Config) -> - maybe_start_locker(Mod, GroupName, Opts), +init_tc(Mod, {init_per_group, GroupName, Properties}, Config) -> + maybe_start_locker(Mod, GroupName, Properties), call(fun call_generic/3, Config, [pre_init_per_group, GroupName]); init_tc(_Mod, {end_per_group, GroupName, _}, Config) -> call(fun call_generic/3, Config, [pre_end_per_group, GroupName]); @@ -93,15 +98,18 @@ init_tc(_Mod, TC, Config) -> %% @doc Called as each test case is completed. This includes all configuration %% tests. -spec end_tc(Mod :: atom(), - Func :: atom(), + FuncSpec :: atom() | + {ConfigFunc :: init_per_group | end_per_group, + GroupName :: atom(), + Properties :: list()}, Args :: list(), Result :: term(), - Resturn :: term()) -> + Return :: term()) -> NewConfig :: proplists:proplist() | - {skip, Reason :: term()} | - {auto_skip, Reason :: term()} | - {fail, Reason :: term()} | - ok | '$ct_no_change'. + {skip, Reason :: term()} | + {auto_skip, Reason :: term()} | + {fail, Reason :: term()} | + ok | '$ct_no_change'. end_tc(Mod, init_per_suite, Config, _Result, Return) -> call(fun call_generic/3, Return, [post_init_per_suite, Mod, Config], @@ -112,10 +120,10 @@ end_tc(Mod, end_per_suite, Config, Result, _Return) -> end_tc(_Mod, {init_per_group, GroupName, _}, Config, _Result, Return) -> call(fun call_generic/3, Return, [post_init_per_group, GroupName, Config], '$ct_no_change'); -end_tc(Mod, {end_per_group, GroupName, Opts}, Config, Result, _Return) -> +end_tc(Mod, {end_per_group, GroupName, Properties}, Config, Result, _Return) -> Res = call(fun call_generic/3, Result, [post_end_per_group, GroupName, Config], '$ct_no_change'), - maybe_stop_locker(Mod, GroupName,Opts), + maybe_stop_locker(Mod, GroupName, Properties), Res; end_tc(_Mod, TC, Config, Result, _Return) -> call(fun call_generic/3, Result, [post_end_per_testcase, TC, Config], diff --git a/lib/common_test/src/ct_netconfc.erl b/lib/common_test/src/ct_netconfc.erl index 35920ec1dc..6fc840745d 100644 --- a/lib/common_test/src/ct_netconfc.erl +++ b/lib/common_test/src/ct_netconfc.erl @@ -1,7 +1,7 @@ %%---------------------------------------------------------------------- %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2012-2013. All Rights Reserved. +%% Copyright Ericsson AB 2012-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -1334,7 +1334,7 @@ handle_data(NewData,#state{connection=Connection,buff=Buff} = State) -> %% first answer P=#pending{tref=TRef,caller=Caller} = lists:last(Pending), - timer:cancel(TRef), + _ = timer:cancel(TRef), Reason1 = {failed_to_parse_received_data,Reason}, ct_gen_conn:return(Caller,{error,Reason1}), lists:delete(P,Pending) @@ -1454,7 +1454,7 @@ decode({Tag,Attrs,_}=E, #state{connection=Connection,pending=Pending}=State) -> {noreply,State#state{hello_status = {error,Reason}}} end; #pending{tref=TRef,caller=Caller} -> - timer:cancel(TRef), + _ = timer:cancel(TRef), case decode_hello(E) of {ok,SessionId,Capabilities} -> ct_gen_conn:return(Caller,ok), @@ -1482,7 +1482,7 @@ decode({Tag,Attrs,_}=E, #state{connection=Connection,pending=Pending}=State) -> case [P || P = #pending{msg_id=undefined,op=undefined} <- Pending] of [#pending{tref=TRef, caller=Caller}] -> - timer:cancel(TRef), + _ = timer:cancel(TRef), ct_gen_conn:return(Caller,E), {noreply,State#state{pending=[]}}; _ -> @@ -1504,7 +1504,7 @@ get_msg_id(Attrs) -> decode_rpc_reply(MsgId,{_,Attrs,Content0}=E,#state{pending=Pending} = State) -> case lists:keytake(MsgId,#pending.msg_id,Pending) of {value, #pending{tref=TRef,op=Op,caller=Caller}, Pending1} -> - timer:cancel(TRef), + _ = timer:cancel(TRef), Content = forward_xmlns_attr(Attrs,Content0), {CallerReply,{ServerReply,State2}} = do_decode_rpc_reply(Op,Content,State#state{pending=Pending1}), @@ -1519,7 +1519,7 @@ decode_rpc_reply(MsgId,{_,Attrs,Content0}=E,#state{pending=Pending} = State) -> msg_id=undefined, op=undefined, caller=Caller}] -> - timer:cancel(TRef), + _ = timer:cancel(TRef), ct_gen_conn:return(Caller,E), {noreply,State#state{pending=[]}}; _ -> @@ -1862,10 +1862,7 @@ ssh_open(#options{host=Host,timeout=Timeout,port=Port,ssh=SshOpts,name=Name}) -> end; {error, Reason} -> ssh:close(CM), - {error,{ssh,could_not_open_channel,Reason}}; - Other -> - %% Bug in ssh?? got {closed,0} here once... - {error,{ssh,unexpected_from_session_channel,Other}} + {error,{ssh,could_not_open_channel,Reason}} end; {error,Reason} -> {error,{ssh,could_not_connect_to_server,Reason}} diff --git a/lib/common_test/test/ct_master_SUITE.erl b/lib/common_test/test/ct_master_SUITE.erl index 7408cbe376..e90513f888 100644 --- a/lib/common_test/test/ct_master_SUITE.erl +++ b/lib/common_test/test/ct_master_SUITE.erl @@ -81,7 +81,8 @@ end_per_testcase(TestCase, Config) -> ct_test_support:end_per_testcase(TestCase, Config). -suite() -> [{ct_hooks,[ts_install_cth]}]. +suite() -> [{timetrap,{seconds,60}}, + {ct_hooks,[ts_install_cth]}]. all() -> [ct_master_test]. diff --git a/lib/dialyzer/src/dialyzer.erl b/lib/dialyzer/src/dialyzer.erl index 1b7b0226cc..cec94a49fd 100644 --- a/lib/dialyzer/src/dialyzer.erl +++ b/lib/dialyzer/src/dialyzer.erl @@ -447,7 +447,6 @@ message_to_string({opaque_size, [SizeType, Size]}) -> message_to_string({opaque_call, [M, F, Args, Culprit, OpaqueType]}) -> io_lib:format("The call ~s:~s~s breaks the opaqueness of the term ~s :: ~s\n", [M, F, Args, Culprit, OpaqueType]); - %%----- Warnings for concurrency errors -------------------- message_to_string({race_condition, [M, F, Args, Reason]}) -> io_lib:format("The call ~w:~w~s ~s\n", [M, F, Args, Reason]); @@ -564,4 +563,4 @@ form_position_string(ArgNs) -> ordinal(1) -> "1st"; ordinal(2) -> "2nd"; ordinal(3) -> "3rd"; -ordinal(N) when is_integer(N) -> io_lib:format("~wth",[N]). +ordinal(N) when is_integer(N) -> io_lib:format("~wth", [N]). diff --git a/lib/dialyzer/src/dialyzer.hrl b/lib/dialyzer/src/dialyzer.hrl index 6cb4af6a46..9a25f86512 100644 --- a/lib/dialyzer/src/dialyzer.hrl +++ b/lib/dialyzer/src/dialyzer.hrl @@ -89,12 +89,6 @@ -type dial_error() :: any(). %% XXX: underspecified %%-------------------------------------------------------------------- -%% THIS TYPE SHOULD ONE DAY DISAPPEAR -- IT DOES NOT BELONG HERE -%%-------------------------------------------------------------------- - --type ordset(T) :: [T] . %% XXX: temporarily - -%%-------------------------------------------------------------------- %% Basic types used either in the record definitions below or in other %% parts of the application %%-------------------------------------------------------------------- @@ -144,7 +138,7 @@ init_plts = [] :: [file:filename()], include_dirs = [] :: [file:filename()], output_plt = none :: 'none' | file:filename(), - legal_warnings = ordsets:new() :: ordset(dial_warn_tag()), + legal_warnings = ordsets:new() :: ordsets:ordset(dial_warn_tag()), report_mode = normal :: rep_mode(), erlang_mode = false :: boolean(), use_contracts = true :: boolean(), @@ -168,4 +162,4 @@ dialyzer_timing:end_stamp(Server), Var end). --define(timing(Server, Msg, Expr),?timing(Server, Msg, _T, Expr)). +-define(timing(Server, Msg, Expr), ?timing(Server, Msg, _T, Expr)). diff --git a/lib/dialyzer/src/dialyzer_dep.erl b/lib/dialyzer/src/dialyzer_dep.erl index f1ac41ff04..e3ece144c9 100644 --- a/lib/dialyzer/src/dialyzer_dep.erl +++ b/lib/dialyzer/src/dialyzer_dep.erl @@ -55,11 +55,11 @@ %% %% Letrecs = a dict mapping var labels to their recursive definition. %% top-level letrecs are not included as they are handled -%% separatedly. +%% separately. %% -spec analyze(cerl:c_module()) -> - {dict:dict(), ordset('external' | label()), dict:dict(), dict:dict()}. + {dict:dict(), ordsets:ordset('external' | label()), dict:dict(), dict:dict()}. analyze(Tree) -> %% io:format("Handling ~w\n", [cerl:atom_val(cerl:module_name(Tree))]), diff --git a/lib/dialyzer/src/dialyzer_gui_wx.erl b/lib/dialyzer/src/dialyzer_gui_wx.erl index 08f31c1e13..7070fa240d 100644 --- a/lib/dialyzer/src/dialyzer_gui_wx.erl +++ b/lib/dialyzer/src/dialyzer_gui_wx.erl @@ -61,7 +61,7 @@ init_plt :: dialyzer_plt:plt(), dir_entry :: wx:wx_object(), file_box :: wx:wx_object(), - files_to_analyze :: ordset(string()), + files_to_analyze :: ordsets:ordset(string()), gui :: wx:wx_object(), log :: wx:wx_object(), menu :: menu(), diff --git a/lib/dialyzer/src/dialyzer_races.erl b/lib/dialyzer/src/dialyzer_races.erl index 48fcde8014..b1f849b16f 100644 --- a/lib/dialyzer/src/dialyzer_races.erl +++ b/lib/dialyzer/src/dialyzer_races.erl @@ -85,6 +85,12 @@ -type race_tag() :: 'whereis_register' | 'whereis_unregister' | 'ets_lookup_insert' | 'mnesia_dirty_read_write'. +%% The following type is similar to the dial_warning() type but has a +%% tag which is local to this module and is not propagated to outside +-type dial_race_warning() :: {race_warn_tag(), file_line(), {atom(), [term()]}}. +-type race_warn_tag() :: ?WARN_WHEREIS_REGISTER | ?WARN_WHEREIS_UNREGISTER + | ?WARN_ETS_LOOKUP_INSERT | ?WARN_MNESIA_DIRTY_READ_WRITE. + -record(beg_clause, {arg :: var_to_map1(), pats :: var_to_map1(), guard :: cerl:cerl()}). @@ -103,7 +109,7 @@ args :: args(), arg_types :: [erl_types:erl_type()], vars :: [core_vars()], - state :: _, %% XXX: recursive + state :: dialyzer_dataflow:state(), file_line :: file_line(), var_map :: dict:dict()}). -record(fun_call, {caller :: dialyzer_callgraph:mfa_or_funlbl(), @@ -141,7 +147,7 @@ race_tags = [] :: [#race_fun{}], %% true for fun types and warning mode race_analysis = false :: boolean(), - race_warnings = [] :: [dial_warning()]}). + race_warnings = [] :: [dial_race_warning()]}). %%% =========================================================================== %%% @@ -1763,7 +1769,7 @@ ets_list_args(MaybeList) -> catch _:_ -> [?no_label] end; false -> [ets_tuple_args(MaybeList)] - end. + end. ets_list_argtypes(ListStr) -> ListStr1 = string:strip(ListStr, left, $[), diff --git a/lib/kernel/doc/src/file.xml b/lib/kernel/doc/src/file.xml index 6d4b1cb2db..8dae34431b 100644 --- a/lib/kernel/doc/src/file.xml +++ b/lib/kernel/doc/src/file.xml @@ -642,6 +642,11 @@ <item> <p>Symbolic links are not supported on this platform.</p> </item> + <tag><c>eperm</c></tag> + <item> + <p>User does not have privileges to create symbolic links + (<c>SeCreateSymbolicLinkPrivilege</c> on Windows).</p> + </item> </taglist> </desc> </func> diff --git a/lib/kernel/test/file_SUITE.erl b/lib/kernel/test/file_SUITE.erl index 6b52493f46..f6d6cd94ab 100644 --- a/lib/kernel/test/file_SUITE.erl +++ b/lib/kernel/test/file_SUITE.erl @@ -428,7 +428,13 @@ make_del_dir(Config) when is_list(Config) -> % because there are processes having that directory as current. ?line ok = ?FILE_MODULE:make_dir(NewDir), ?line {ok,CurrentDir} = file:get_cwd(), - ?line ok = ?FILE_MODULE:set_cwd(NewDir), + case {os:type(), length(NewDir) >= 260 } of + {{win32,_}, true} -> + io:format("Skip set_cwd for windows path longer than 260 (MAX_PATH)\n", []), + io:format("\nNewDir = ~p\n", [NewDir]); + _ -> + ?line ok = ?FILE_MODULE:set_cwd(NewDir) + end, try %% Check that we get an error when trying to create... %% a deep directory @@ -485,32 +491,39 @@ cur_dir_0(Config) when is_list(Config) -> atom_to_list(?MODULE) ++"_curdir"), ?line ok = ?FILE_MODULE:make_dir(NewDir), - ?line io:format("cd to ~s",[NewDir]), - ?line ok = ?FILE_MODULE:set_cwd(NewDir), - - %% Create a file in the new current directory, and check that it - %% really is created there - ?line UncommonName = "uncommon.fil", - ?line {ok,Fd} = ?FILE_MODULE:open(UncommonName,read_write), - ?line ok = ?FILE_MODULE:close(Fd), - ?line {ok,NewDirFiles} = ?FILE_MODULE:list_dir("."), - ?line true = lists:member(UncommonName,NewDirFiles), - - %% Delete the directory and return to the old current directory - %% and check that the created file isn't there (too!) - ?line expect({error, einval}, {error, eacces}, - ?FILE_MODULE:del_dir(NewDir)), - ?line ?FILE_MODULE:delete(UncommonName), - ?line {ok,[]} = ?FILE_MODULE:list_dir("."), - ?line ok = ?FILE_MODULE:set_cwd(Dir1), - ?line io:format("cd back to ~s",[Dir1]), - ?line ok = ?FILE_MODULE:del_dir(NewDir), - ?line {error, enoent} = ?FILE_MODULE:set_cwd(NewDir), - ?line ok = ?FILE_MODULE:set_cwd(Dir1), - ?line io:format("cd back to ~s",[Dir1]), - ?line {ok,OldDirFiles} = ?FILE_MODULE:list_dir("."), - ?line false = lists:member(UncommonName,OldDirFiles), - + case {os:type(), length(NewDir) >= 260} of + {{win32,_}, true} -> + io:format("Skip set_cwd for windows path longer than 260 (MAX_PATH):\n"), + io:format("\nNewDir = ~p\n", [NewDir]); + _ -> + io:format("cd to ~s",[NewDir]), + ok = ?FILE_MODULE:set_cwd(NewDir), + + %% Create a file in the new current directory, and check that it + %% really is created there + UncommonName = "uncommon.fil", + {ok,Fd} = ?FILE_MODULE:open(UncommonName,read_write), + ok = ?FILE_MODULE:close(Fd), + {ok,NewDirFiles} = ?FILE_MODULE:list_dir("."), + true = lists:member(UncommonName,NewDirFiles), + + %% Delete the directory and return to the old current directory + %% and check that the created file isn't there (too!) + expect({error, einval}, {error, eacces}, + ?FILE_MODULE:del_dir(NewDir)), + ?FILE_MODULE:delete(UncommonName), + {ok,[]} = ?FILE_MODULE:list_dir("."), + ok = ?FILE_MODULE:set_cwd(Dir1), + io:format("cd back to ~s",[Dir1]), + + ok = ?FILE_MODULE:del_dir(NewDir), + {error, enoent} = ?FILE_MODULE:set_cwd(NewDir), + ok = ?FILE_MODULE:set_cwd(Dir1), + io:format("cd back to ~s",[Dir1]), + {ok,OldDirFiles} = ?FILE_MODULE:list_dir("."), + false = lists:member(UncommonName,OldDirFiles) + end, + %% Try doing some bad things ?line {error, badarg} = ?FILE_MODULE:set_cwd({foo,bar}), ?line {error, enoent} = ?FILE_MODULE:set_cwd(""), @@ -1982,7 +1995,6 @@ names(Config) when is_list(Config) -> ?line Name1 = filename:join(RootDir, FileName), ?line Name2 = [RootDir,"/","foo1",".","fil"], ?line Name3 = [RootDir,"/",foo,$1,[[[],[],'.']],"f",il], - ?line Name4 = list_to_atom(Name1), ?line {ok,Fd0} = ?FILE_MODULE:open(Name1,write), ?line ok = ?FILE_MODULE:close(Fd0), @@ -1995,23 +2007,33 @@ names(Config) when is_list(Config) -> ?line ok = ?FILE_MODULE:close(Fd2), ?line {ok,Fd3} = ?FILE_MODULE:open(Name3,read), ?line ok = ?FILE_MODULE:close(Fd3), - ?line {ok,Fd4} = ?FILE_MODULE:open(Name4,read), - ?line ok = ?FILE_MODULE:close(Fd4), + case length(Name1) > 255 of + true -> + io:format("Path too long for an atom:\n\n~p\n", [Name1]); + false -> + Name4 = list_to_atom(Name1), + {ok,Fd4} = ?FILE_MODULE:open(Name4,read), + ok = ?FILE_MODULE:close(Fd4) + end, %% Try some path names ?line Path1 = RootDir, ?line Path2 = [RootDir], ?line Path3 = ['',[],[RootDir,[[]]]], - ?line Path4 = list_to_atom(Path1), ?line {ok,Fd11,_} = ?FILE_MODULE:path_open([Path1],FileName,read), ?line ok = ?FILE_MODULE:close(Fd11), ?line {ok,Fd12,_} = ?FILE_MODULE:path_open([Path2],FileName,read), ?line ok = ?FILE_MODULE:close(Fd12), ?line {ok,Fd13,_} = ?FILE_MODULE:path_open([Path3],FileName,read), ?line ok = ?FILE_MODULE:close(Fd13), - ?line {ok,Fd14,_} = ?FILE_MODULE:path_open([Path4],FileName,read), - ?line ok = ?FILE_MODULE:close(Fd14), - + case length(Path1) > 255 of + true-> + io:format("Path too long for an atom:\n\n~p\n", [Path1]); + false -> + Path4 = list_to_atom(Path1), + {ok,Fd14,_} = ?FILE_MODULE:path_open([Path4],FileName,read), + ok = ?FILE_MODULE:close(Fd14) + end, ?line [] = flush(), ?line test_server:timetrap_cancel(Dog), ok. @@ -2673,6 +2695,9 @@ symlinks(Config) when is_list(Config) -> case ?FILE_MODULE:make_symlink(Name, Alias) of {error, enotsup} -> {skipped, "Links not supported on this platform"}; + {error, eperm} -> + {win32,_} = os:type(), + {skipped, "Windows user not privileged to create symlinks"}; ok -> ?line {ok, Info1} = ?FILE_MODULE:read_file_info(Name), ?line {ok, Info1} = ?FILE_MODULE:read_file_info(Alias), @@ -3599,7 +3624,11 @@ otp_10852(Config) when is_list(Config) -> ok = rpc_call(Node, list_dir_all, [B]), ok = rpc_call(Node, read_file, [B]), ok = rpc_call(Node, make_link, [B,B]), - ok = rpc_call(Node, make_symlink, [B,B]), + case rpc_call(Node, make_symlink, [B,B]) of + ok -> ok; + {error, E} when (E =:= enotsup) or (E =:= eperm) -> + {win32,_} = os:type() + end, ok = rpc_call(Node, delete, [B]), ok = rpc_call(Node, make_dir, [B]), ok = rpc_call(Node, del_dir, [B]), diff --git a/lib/kernel/test/prim_file_SUITE.erl b/lib/kernel/test/prim_file_SUITE.erl index 97d66eab81..05bd5b3a3d 100644 --- a/lib/kernel/test/prim_file_SUITE.erl +++ b/lib/kernel/test/prim_file_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 2000-2013. All Rights Reserved. +%% Copyright Ericsson AB 2000-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -266,7 +266,13 @@ make_del_dir(Config, Handle, Suffix) -> % because there are processes having that directory as current. ?line ok = ?PRIM_FILE_call(make_dir, Handle, [NewDir]), ?line {ok, CurrentDir} = ?PRIM_FILE_call(get_cwd, Handle, []), - ?line ok = ?PRIM_FILE_call(set_cwd, Handle, [NewDir]), + case {os:type(), length(NewDir) >= 260 } of + {{win32,_}, true} -> + io:format("Skip set_cwd for windows path longer than 260 (MAX_PATH)\n", []), + io:format("\nNewDir = ~p\n", [NewDir]); + _ -> + ok = ?PRIM_FILE_call(set_cwd, Handle, [NewDir]) + end, try %% Check that we get an error when trying to create... %% a deep directory @@ -335,31 +341,37 @@ cur_dir_0(Config, Handle) -> ?line RootDir = ?config(priv_dir,Config), ?line NewDir = filename:join(RootDir, DirName), ?line ok = ?PRIM_FILE_call(make_dir, Handle, [NewDir]), - ?line io:format("cd to ~s",[NewDir]), - ?line ok = ?PRIM_FILE_call(set_cwd, Handle, [NewDir]), - - %% Create a file in the new current directory, and check that it - %% really is created there - ?line UncommonName = "uncommon.fil", - ?line {ok,Fd} = ?PRIM_FILE:open(UncommonName, [read, write]), - ?line ok = ?PRIM_FILE:close(Fd), - ?line {ok,NewDirFiles} = ?PRIM_FILE_call(list_dir, Handle, ["."]), - ?line true = lists:member(UncommonName,NewDirFiles), - - %% Delete the directory and return to the old current directory - %% and check that the created file isn't there (too!) - ?line expect({error, einval}, {error, eacces}, {error, eexist}, + case {os:type(), length(NewDir) >= 260} of + {{win32,_}, true} -> + io:format("Skip set_cwd for windows path longer than 260 (MAX_PATH):\n"), + io:format("\nNewDir = ~p\n", [NewDir]); + _ -> + io:format("cd to ~s",[NewDir]), + ok = ?PRIM_FILE_call(set_cwd, Handle, [NewDir]), + + %% Create a file in the new current directory, and check that it + %% really is created there + UncommonName = "uncommon.fil", + {ok,Fd} = ?PRIM_FILE:open(UncommonName, [read, write]), + ok = ?PRIM_FILE:close(Fd), + {ok,NewDirFiles} = ?PRIM_FILE_call(list_dir, Handle, ["."]), + true = lists:member(UncommonName,NewDirFiles), + + %% Delete the directory and return to the old current directory + %% and check that the created file isn't there (too!) + expect({error, einval}, {error, eacces}, {error, eexist}, ?PRIM_FILE_call(del_dir, Handle, [NewDir])), - ?line ?PRIM_FILE_call(delete, Handle, [UncommonName]), - ?line {ok,[]} = ?PRIM_FILE_call(list_dir, Handle, ["."]), - ?line ok = ?PRIM_FILE_call(set_cwd, Handle, [Dir1]), - ?line io:format("cd back to ~s",[Dir1]), - ?line ok = ?PRIM_FILE_call(del_dir, Handle, [NewDir]), - ?line {error, enoent} = ?PRIM_FILE_call(set_cwd, Handle, [NewDir]), - ?line ok = ?PRIM_FILE_call(set_cwd, Handle, [Dir1]), - ?line io:format("cd back to ~s",[Dir1]), - ?line {ok,OldDirFiles} = ?PRIM_FILE_call(list_dir, Handle, ["."]), - ?line false = lists:member(UncommonName,OldDirFiles), + ?PRIM_FILE_call(delete, Handle, [UncommonName]), + {ok,[]} = ?PRIM_FILE_call(list_dir, Handle, ["."]), + ok = ?PRIM_FILE_call(set_cwd, Handle, [Dir1]), + io:format("cd back to ~s",[Dir1]), + ok = ?PRIM_FILE_call(del_dir, Handle, [NewDir]), + {error, enoent} = ?PRIM_FILE_call(set_cwd, Handle, [NewDir]), + ok = ?PRIM_FILE_call(set_cwd, Handle, [Dir1]), + io:format("cd back to ~s",[Dir1]), + {ok,OldDirFiles} = ?PRIM_FILE_call(list_dir, Handle, ["."]), + false = lists:member(UncommonName,OldDirFiles) + end, %% Try doing some bad things ?line {error, badarg} = @@ -1981,6 +1993,9 @@ symlinks(Config, Handle, Suffix) -> case ?PRIM_FILE_call(make_symlink, Handle, [Name, Alias]) of {error, enotsup} -> {skipped, "Links not supported on this platform"}; + {error, eperm} -> + {win32,_} = os:type(), + {skipped, "Windows user not privileged to create links"}; ok -> ?line {ok, Info1} = ?PRIM_FILE_call(read_file_info, Handle, [Name]), diff --git a/lib/stdlib/doc/src/erl_parse.xml b/lib/stdlib/doc/src/erl_parse.xml index 2d5aff3c6c..cf0bff48cd 100644 --- a/lib/stdlib/doc/src/erl_parse.xml +++ b/lib/stdlib/doc/src/erl_parse.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2013</year> + <year>1996</year><year>2014</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -173,6 +173,7 @@ </func> <func> <name name="abstract" arity="2"/> + <type name="encoding_func"/> <fsummary>Convert an Erlang term into an abstract form</fsummary> <desc> <p>Converts the Erlang data structure <c><anno>Data</anno></c> into an @@ -183,7 +184,12 @@ selecting which integer lists will be considered as strings. The default is to use the encoding returned by <seealso marker="epp#default_encoding/0"> - <c>epp:default_encoding/0</c></seealso></p> + <c>epp:default_encoding/0</c></seealso>. + The value <c>none</c> means that no integer lists will be + considered as strings. The <c>encoding_func()</c> will be + called with one integer of a list at a time, and if it + returns <c>true</c> for every integer the list will be + considered a string.</p> </desc> </func> </funcs> diff --git a/lib/stdlib/doc/src/sys.xml b/lib/stdlib/doc/src/sys.xml index ab8b380f49..a46fa1289f 100644 --- a/lib/stdlib/doc/src/sys.xml +++ b/lib/stdlib/doc/src/sys.xml @@ -246,6 +246,22 @@ <c>{Module, Id, HandlerState}</c>, where <c>Module</c> is the event handler's module name, <c>Id</c> is the handler's ID (which is the value <c>false</c> if it was registered without an ID), and <c>HandlerState</c> is the handler's state.</p> + <p>If the callback module exports a <c>system_get_state/1</c> function, it will be called in the + target process to get its state. Its argument is the same as the <c>Misc</c> value returned by + <seealso marker="#get_status-1">get_status/1,2</seealso>, and the <c>system_get_state/1</c> + function is expected to extract the callback module's state from it. The <c>system_get_state/1</c> + function must return <c>{ok, State}</c> where <c>State</c> is the callback module's state.</p> + <p>If the callback module does not export a <c>system_get_state/1</c> function, <c>get_state/1,2</c> + assumes the <c>Misc</c> value is the callback module's state and returns it directly instead.</p> + <p>If the callback module's <c>system_get_state/1</c> function crashes or throws an exception, the + caller exits with error <c>{callback_failed, {Module, system_get_state}, {Class, Reason}}</c> where + <c>Module</c> is the name of the callback module and <c>Class</c> and <c>Reason</c> indicate + details of the exception.</p> + <p>The <c>system_get_state/1</c> function is primarily useful for user-defined + behaviours and modules that implement OTP <seealso marker="#special_process">special + processes</seealso>. The <c>gen_server</c>, <c>gen_fsm</c>, and <c>gen_event</c> OTP + behaviour modules export this function, and so callback modules for those behaviours + need not supply their own.</p> <p>To obtain more information about a process, including its state, see <seealso marker="#get_status-1">get_status/1</seealso> and <seealso marker="#get_status-2">get_status/2</seealso>.</p> @@ -289,6 +305,28 @@ function means that only the state of the particular event handler it was working on when it failed or crashed is unchanged; it can still succeed in changing the states of other event handlers registered in the same <c>gen_event</c> process.</p> + <p>If the callback module exports a <c>system_replace_state/2</c> function, it will be called in the + target process to replace its state using <c>StateFun</c>. Its two arguments are <c>StateFun</c> + and <c>Misc</c>, where <c>Misc</c> is the same as the <c>Misc</c> value returned by + <seealso marker="#get_status-1">get_status/1,2</seealso>. A <c>system_replace_state/2</c> function + is expected to return <c>{ok, NewState, NewMisc}</c> where <c>NewState</c> is the callback module's + new state obtained by calling <c>StateFun</c>, and <c>NewMisc</c> is a possibly new value used to + replace the original <c>Misc</c> (required since <c>Misc</c> often contains the callback + module's state within it).</p> + <p>If the callback module does not export a <c>system_replace_state/2</c> function, + <c>replace_state/2,3</c> assumes the <c>Misc</c> value is the callback module's state, passes it + to <c>StateFun</c> and uses the return value as both the new state and as the new value of + <c>Misc</c>.</p> + <p>If the callback module's <c>system_replace_state/2</c> function crashes or throws an exception, + the caller exits with error <c>{callback_failed, {Module, system_replace_state}, {Class, Reason}}</c> + where <c>Module</c> is the name of the callback module and <c>Class</c> and <c>Reason</c> indicate details + of the exception. If the callback module does not provide a <c>system_replace_state/2</c> function and + <c>StateFun</c> crashes or throws an exception, the caller exits with error + <c>{callback_failed, StateFun, {Class, Reason}}</c>.</p> + <p>The <c>system_replace_state/2</c> function is primarily useful for user-defined behaviours and + modules that implement OTP <seealso marker="#special_process">special processes</seealso>. The + <c>gen_server</c>, <c>gen_fsm</c>, and <c>gen_event</c> OTP behaviour modules export this function, + and so callback modules for those behaviours need not supply their own.</p> </desc> </func> <func> @@ -322,7 +360,7 @@ <section> <title>Process Implementation Functions</title> - <p>The following functions are used when implementing a + <p><marker id="special_process"/>The following functions are used when implementing a special process. This is an ordinary process which does not use a standard behaviour, but a process which understands the standard system messages.</p> </section> @@ -375,8 +413,9 @@ process continues the execution, or <c><anno>Module</anno>:system_terminate(Reason, <anno>Parent</anno>, <anno>Debug</anno>, <anno>Misc</anno>)</c> if the process should terminate. The <c><anno>Module</anno></c> must export - <c>system_continue/3</c>, <c>system_terminate/4</c>, and - <c>system_code_change/4</c> (see below). + <c>system_continue/3</c>, <c>system_terminate/4</c>, + <c>system_code_change/4</c>, <c>system_get_state/1</c> and + <c>system_replace_state/2</c> (see below). </p> <p>The <c><anno>Misc</anno></c> argument can be used to save internal data in a process, for example its state. It is sent to @@ -444,6 +483,34 @@ defined, the atom <c>undefined</c> is sent.</p> </desc> </func> + <func> + <name>Mod:system_get_state(Misc) -> {ok, State}</name> + <fsummary>Called when the process should return its current state</fsummary> + <type> + <v>Misc = term()</v> + <v>State = term()</v> + </type> + <desc> + <p>This function is called from <c>sys:handle_system_msg/6</c> when the process + should return a term that reflects its current state. <c>State</c> is the + value returned by <c>sys:get_state/2</c>.</p> + </desc> + </func> + <func> + <name>Mod:system_replace_state(StateFun, Misc) -> {ok, NState, NMisc}</name> + <fsummary>Called when the process should replace its current state</fsummary> + <type> + <v>StateFun = fun((State :: term()) -> NState)</v> + <v>Misc = term()</v> + <v>NState = term()</v> + <v>NMisc = term()</v> + </type> + <desc> + <p>This function is called from <c>sys:handle_system_msg/6</c> when the process + should replace its current state. <c>NState</c> is the value returned by + <c>sys:replace_state/3</c>.</p> + </desc> + </func> </funcs> </erlref> diff --git a/lib/stdlib/doc/src/unicode_usage.xml b/lib/stdlib/doc/src/unicode_usage.xml index c843ef7736..bebfbd4514 100644 --- a/lib/stdlib/doc/src/unicode_usage.xml +++ b/lib/stdlib/doc/src/unicode_usage.xml @@ -848,6 +848,7 @@ Eshell V5.10.1 (abort with ^G) </section> <section> <title>Unicode in Environment and Parameters</title> + <marker id="unicode_in_environment_and_parameters"/> <p>Environment variables and their interpretation is handled much in the same way as file names. If Unicode file names are enabled, environment variables as well as parameters to the Erlang VM are diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl index 6316db7054..1dc5fc52a7 100644 --- a/lib/stdlib/src/erl_parse.yrl +++ b/lib/stdlib/src/erl_parse.yrl @@ -2,7 +2,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% Copyright Ericsson AB 1996-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -919,59 +919,63 @@ normalise_list([]) -> Data :: term(), AbsTerm :: abstract_expr(). abstract(T) -> - abstract(T, 0, epp:default_encoding()). + abstract(T, 0, enc_func(epp:default_encoding())). + +-type encoding_func() :: fun((non_neg_integer()) -> boolean()). %%% abstract/2 takes line and encoding options -spec abstract(Data, Options) -> AbsTerm when Data :: term(), Options :: Line | [Option], Option :: {line, Line} | {encoding, Encoding}, - Encoding :: latin1 | unicode | utf8, + Encoding :: 'latin1' | 'unicode' | 'utf8' | 'none' | encoding_func(), Line :: erl_scan:line(), AbsTerm :: abstract_expr(). abstract(T, Line) when is_integer(Line) -> - abstract(T, Line, epp:default_encoding()); + abstract(T, Line, enc_func(epp:default_encoding())); abstract(T, Options) when is_list(Options) -> Line = proplists:get_value(line, Options, 0), Encoding = proplists:get_value(encoding, Options,epp:default_encoding()), - abstract(T, Line, Encoding). + EncFunc = enc_func(Encoding), + abstract(T, Line, EncFunc). -define(UNICODE(C), - is_integer(C) andalso - (C >= 0 andalso C < 16#D800 orelse + (C < 16#D800 orelse C > 16#DFFF andalso C < 16#FFFE orelse C > 16#FFFF andalso C =< 16#10FFFF)). +enc_func(latin1) -> fun(C) -> C < 256 end; +enc_func(unicode) -> fun(C) -> ?UNICODE(C) end; +enc_func(utf8) -> fun(C) -> ?UNICODE(C) end; +enc_func(none) -> none; +enc_func(Fun) when is_function(Fun, 1) -> Fun; +enc_func(Term) -> erlang:error({badarg, Term}). + abstract(T, L, _E) when is_integer(T) -> {integer,L,T}; abstract(T, L, _E) when is_float(T) -> {float,L,T}; abstract(T, L, _E) when is_atom(T) -> {atom,L,T}; abstract([], L, _E) -> {nil,L}; abstract(B, L, _E) when is_bitstring(B) -> {bin, L, [abstract_byte(Byte, L) || Byte <- bitstring_to_list(B)]}; -abstract([C|T], L, unicode=E) when ?UNICODE(C) -> - abstract_unicode_string(T, [C], L, E); -abstract([C|T], L, utf8=E) when ?UNICODE(C) -> - abstract_unicode_string(T, [C], L, E); -abstract([C|T], L, latin1=E) when is_integer(C), 0 =< C, C < 256 -> - abstract_string(T, [C], L, E); -abstract([H|T], L, E) -> +abstract([H|T], L, none=E) -> {cons,L,abstract(H, L, E),abstract(T, L, E)}; +abstract(List, L, E) when is_list(List) -> + abstract_list(List, [], L, E); abstract(Tuple, L, E) when is_tuple(Tuple) -> - {tuple,L,abstract_list(tuple_to_list(Tuple), L, E)}. - -abstract_string([C|T], String, L, E) when is_integer(C), 0 =< C, C < 256 -> - abstract_string(T, [C|String], L, E); -abstract_string([], String, L, _E) -> - {string, L, lists:reverse(String)}; -abstract_string(T, String, L, E) -> - not_string(String, abstract(T, L, E), L, E). - -abstract_unicode_string([C|T], String, L, E) when ?UNICODE(C) -> - abstract_unicode_string(T, [C|String], L, E); -abstract_unicode_string([], String, L, _E) -> + {tuple,L,abstract_tuple_list(tuple_to_list(Tuple), L, E)}. + +abstract_list([H|T], String, L, E) -> + case is_integer(H) andalso H >= 0 andalso E(H) of + true -> + abstract_list(T, [H|String], L, E); + false -> + AbstrList = {cons,L,abstract(H, L, E),abstract(T, L, E)}, + not_string(String, AbstrList, L, E) + end; +abstract_list([], String, L, _E) -> {string, L, lists:reverse(String)}; -abstract_unicode_string(T, String, L, E) -> +abstract_list(T, String, L, E) -> not_string(String, abstract(T, L, E), L, E). not_string([C|T], Result, L, E) -> @@ -979,9 +983,9 @@ not_string([C|T], Result, L, E) -> not_string([], Result, _L, _E) -> Result. -abstract_list([H|T], L, E) -> - [abstract(H, L, E)|abstract_list(T, L, E)]; -abstract_list([], _L, _E) -> +abstract_tuple_list([H|T], L, E) -> + [abstract(H, L, E)|abstract_tuple_list(T, L, E)]; +abstract_tuple_list([], _L, _E) -> []. abstract_byte(Byte, L) when is_integer(Byte) -> diff --git a/lib/stdlib/src/gen_event.erl b/lib/stdlib/src/gen_event.erl index 7629e88fbf..d39dd89d3a 100644 --- a/lib/stdlib/src/gen_event.erl +++ b/lib/stdlib/src/gen_event.erl @@ -40,6 +40,8 @@ system_continue/3, system_terminate/4, system_code_change/4, + system_get_state/1, + system_replace_state/2, format_status/2]). -export_type([handler/0, handler_args/0, add_handler_ret/0, @@ -229,24 +231,6 @@ wake_hib(Parent, ServerName, MSL, Debug) -> fetch_msg(Parent, ServerName, MSL, Debug, Hib) -> receive - {system, From, get_state} -> - States = [{Mod,Id,State} || #handler{module=Mod, id=Id, state=State} <- MSL], - sys:handle_system_msg(get_state, From, Parent, ?MODULE, Debug, - {States, [ServerName, MSL, Hib]}, Hib); - {system, From, {replace_state, StateFun}} -> - {NMSL, NStates} = - lists:unzip([begin - Cur = {Mod,Id,State}, - try - NState = {Mod,Id,NS} = StateFun(Cur), - {HS#handler{state=NS}, NState} - catch - _:_ -> - {HS, Cur} - end - end || #handler{module=Mod, id=Id, state=State}=HS <- MSL]), - sys:handle_system_msg(replace_state, From, Parent, ?MODULE, Debug, - {NStates, [ServerName, NMSL, Hib]}, Hib); {system, From, Req} -> sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, [ServerName, MSL, Hib],Hib); @@ -383,6 +367,23 @@ system_code_change([ServerName, MSL, Hib], Module, OldVsn, Extra) -> MSL), {ok, [ServerName, MSL1, Hib]}. +system_get_state([_ServerName, MSL, _Hib]) -> + {ok, [{Mod,Id,State} || #handler{module=Mod, id=Id, state=State} <- MSL]}. + +system_replace_state(StateFun, [ServerName, MSL, Hib]) -> + {NMSL, NStates} = + lists:unzip([begin + Cur = {Mod,Id,State}, + try + NState = {Mod,Id,NS} = StateFun(Cur), + {HS#handler{state=NS}, NState} + catch + _:_ -> + {HS, Cur} + end + end || #handler{module=Mod, id=Id, state=State}=HS <- MSL]), + {ok, NStates, [ServerName, NMSL, Hib]}. + %%----------------------------------------------------------------- %% Format debug messages. Print them as the call-back module sees %% them, not as the real erlang messages. Use trace for that. diff --git a/lib/stdlib/src/gen_fsm.erl b/lib/stdlib/src/gen_fsm.erl index e9654322f1..e914f7d0b2 100644 --- a/lib/stdlib/src/gen_fsm.erl +++ b/lib/stdlib/src/gen_fsm.erl @@ -118,6 +118,8 @@ system_continue/3, system_terminate/4, system_code_change/4, + system_get_state/1, + system_replace_state/2, format_status/2]). -import(error_logger, [format/2]). @@ -422,17 +424,6 @@ wake_hib(Parent, Name, StateName, StateData, Mod, Debug) -> decode_msg(Msg,Parent, Name, StateName, StateData, Mod, Time, Debug, Hib) -> case Msg of - {system, From, get_state} -> - Misc = [Name, StateName, StateData, Mod, Time], - sys:handle_system_msg(get_state, From, Parent, ?MODULE, Debug, - {{StateName, StateData}, Misc}, Hib); - {system, From, {replace_state, StateFun}} -> - State = {StateName, StateData}, - NState = {NStateName, NStateData} = try StateFun(State) - catch _:_ -> State end, - NMisc = [Name, NStateName, NStateData, Mod, Time], - sys:handle_system_msg(replace_state, From, Parent, ?MODULE, Debug, - {NState, NMisc}, Hib); {system, From, Req} -> sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, [Name, StateName, StateData, Mod, Time], Hib); @@ -467,6 +458,13 @@ system_code_change([Name, StateName, StateData, Mod, Time], Else -> Else end. +system_get_state([_Name, StateName, StateData, _Mod, _Time]) -> + {ok, {StateName, StateData}}. + +system_replace_state(StateFun, [Name, StateName, StateData, Mod, Time]) -> + Result = {NStateName, NStateData} = StateFun({StateName, StateData}), + {ok, Result, [Name, NStateName, NStateData, Mod, Time]}. + %%----------------------------------------------------------------- %% Format debug messages. Print them as the call-back module sees %% them, not as the real erlang messages. Use trace for that. diff --git a/lib/stdlib/src/gen_server.erl b/lib/stdlib/src/gen_server.erl index 5f14e48b0a..202a931fae 100644 --- a/lib/stdlib/src/gen_server.erl +++ b/lib/stdlib/src/gen_server.erl @@ -98,6 +98,8 @@ -export([system_continue/3, system_terminate/4, system_code_change/4, + system_get_state/1, + system_replace_state/2, format_status/2]). %% Internal exports @@ -372,13 +374,6 @@ wake_hib(Parent, Name, State, Mod, Debug) -> decode_msg(Msg, Parent, Name, State, Mod, Time, Debug, Hib) -> case Msg of - {system, From, get_state} -> - sys:handle_system_msg(get_state, From, Parent, ?MODULE, Debug, - {State, [Name, State, Mod, Time]}, Hib); - {system, From, {replace_state, StateFun}} -> - NState = try StateFun(State) catch _:_ -> State end, - sys:handle_system_msg(replace_state, From, Parent, ?MODULE, Debug, - {NState, [Name, NState, Mod, Time]}, Hib); {system, From, Req} -> sys:handle_system_msg(Req, From, Parent, ?MODULE, Debug, [Name, State, Mod, Time], Hib); @@ -687,6 +682,13 @@ system_code_change([Name, State, Mod, Time], _Module, OldVsn, Extra) -> Else -> Else end. +system_get_state([_Name, State, _Mod, _Time]) -> + {ok, State}. + +system_replace_state(StateFun, [Name, State, Mod, Time]) -> + NState = StateFun(State), + {ok, NState, [Name, NState, Mod, Time]}. + %%----------------------------------------------------------------- %% Format debug messages. Print them as the call-back module sees %% them, not as the real erlang messages. Use trace for that. diff --git a/lib/stdlib/src/sys.erl b/lib/stdlib/src/sys.erl index 04f8dfb61b..e25cc25f57 100644 --- a/lib/stdlib/src/sys.erl +++ b/lib/stdlib/src/sys.erl @@ -102,20 +102,31 @@ get_status(Name, Timeout) -> send_system_msg(Name, get_status, Timeout). -spec get_state(Name) -> State when Name :: name(), State :: term(). -get_state(Name) -> send_system_msg(Name, get_state). +get_state(Name) -> + case send_system_msg(Name, get_state) of + {error, Reason} -> error(Reason); + State -> State + end. -spec get_state(Name, Timeout) -> State when Name :: name(), Timeout :: timeout(), State :: term(). -get_state(Name, Timeout) -> send_system_msg(Name, get_state, Timeout). +get_state(Name, Timeout) -> + case send_system_msg(Name, get_state, Timeout) of + {error, Reason} -> error(Reason); + State -> State + end. -spec replace_state(Name, StateFun) -> NewState when Name :: name(), StateFun :: fun((State :: term()) -> NewState :: term()), NewState :: term(). replace_state(Name, StateFun) -> - send_system_msg(Name, {replace_state, StateFun}). + case send_system_msg(Name, {replace_state, StateFun}) of + {error, Reason} -> error(Reason); + State -> State + end. -spec replace_state(Name, StateFun, Timeout) -> NewState when Name :: name(), @@ -123,7 +134,10 @@ replace_state(Name, StateFun) -> Timeout :: timeout(), NewState :: term(). replace_state(Name, StateFun, Timeout) -> - send_system_msg(Name, {replace_state, StateFun}, Timeout). + case send_system_msg(Name, {replace_state, StateFun}, Timeout) of + {error, Reason} -> error(Reason); + State -> State + end. -spec change_code(Name, Module, OldVsn, Extra) -> 'ok' | {error, Reason} when Name :: name(), @@ -390,10 +404,11 @@ do_cmd(_, suspend, _Parent, _Mod, Debug, Misc) -> {suspended, ok, Debug, Misc}; do_cmd(_, resume, _Parent, _Mod, Debug, Misc) -> {running, ok, Debug, Misc}; -do_cmd(SysState, get_state, _Parent, _Mod, Debug, {State, Misc}) -> - {SysState, State, Debug, Misc}; -do_cmd(SysState, replace_state, _Parent, _Mod, Debug, {State, Misc}) -> - {SysState, State, Debug, Misc}; +do_cmd(SysState, get_state, _Parent, Mod, Debug, Misc) -> + {SysState, do_get_state(Mod, Misc), Debug, Misc}; +do_cmd(SysState, {replace_state, StateFun}, _Parent, Mod, Debug, Misc) -> + {Res, NMisc} = do_replace_state(StateFun, Mod, Misc), + {SysState, Res, Debug, NMisc}; do_cmd(SysState, get_status, Parent, Mod, Debug, Misc) -> Res = get_status(SysState, Parent, Mod, Debug, Misc), {SysState, Res, Debug, Misc}; @@ -407,6 +422,40 @@ do_cmd(suspended, {change_code, Module, Vsn, Extra}, _Parent, do_cmd(SysState, Other, _Parent, _Mod, Debug, Misc) -> {SysState, {error, {unknown_system_msg, Other}}, Debug, Misc}. +do_get_state(Mod, Misc) -> + case erlang:function_exported(Mod, system_get_state, 1) of + true -> + try + {ok, State} = Mod:system_get_state(Misc), + State + catch + Cl:Exc -> + {error, {callback_failed,{Mod,system_get_state},{Cl,Exc}}} + end; + false -> + Misc + end. + +do_replace_state(StateFun, Mod, Misc) -> + case erlang:function_exported(Mod, system_replace_state, 2) of + true -> + try + {ok, State, NMisc} = Mod:system_replace_state(StateFun, Misc), + {State, NMisc} + catch + Cl:Exc -> + {{error, {callback_failed,{Mod,system_replace_state},{Cl,Exc}}}, Misc} + end; + false -> + try + NMisc = StateFun(Misc), + {NMisc, NMisc} + catch + Cl:Exc -> + {{error, {callback_failed,StateFun,{Cl,Exc}}}, Misc} + end + end. + get_status(SysState, Parent, Mod, Debug, Misc) -> PDict = get(), FmtMisc = diff --git a/lib/stdlib/test/Makefile b/lib/stdlib/test/Makefile index af82f22b21..39f6ce423a 100644 --- a/lib/stdlib/test/Makefile +++ b/lib/stdlib/test/Makefile @@ -73,6 +73,8 @@ MODULES= \ supervisor_SUITE \ supervisor_bridge_SUITE \ sys_SUITE \ + sys_sp1 \ + sys_sp2 \ tar_SUITE \ timer_SUITE \ timer_simple_SUITE \ diff --git a/lib/stdlib/test/erl_scan_SUITE.erl b/lib/stdlib/test/erl_scan_SUITE.erl index 447e159cd4..35067e8116 100644 --- a/lib/stdlib/test/erl_scan_SUITE.erl +++ b/lib/stdlib/test/erl_scan_SUITE.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1998-2013. All Rights Reserved. +%% Copyright Ericsson AB 1998-2014. All Rights Reserved. %% %% The contents of this file are subject to the Erlang Public License, %% Version 1.1, (the "License"); you may not use this file except in @@ -21,7 +21,7 @@ init_per_group/2,end_per_group/2]). -export([ error_1/1, error_2/1, iso88591/1, otp_7810/1, otp_10302/1, - otp_10990/1, otp_10992/1]). + otp_10990/1, otp_10992/1, otp_11807/1]). -import(lists, [nth/2,flatten/1]). -import(io_lib, [print/1]). @@ -60,7 +60,8 @@ end_per_testcase(_Case, Config) -> suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - [{group, error}, iso88591, otp_7810, otp_10302, otp_10990, otp_10992]. + [{group, error}, iso88591, otp_7810, otp_10302, otp_10990, otp_10992, + otp_11807]. groups() -> [{error, [], [error_1, error_2]}]. @@ -1144,6 +1145,25 @@ otp_10992(Config) when is_list(Config) -> erl_parse:abstract([$A,42.0], [{encoding,utf8}]), ok. +otp_11807(doc) -> + "OTP-11807. Generalize erl_parse:abstract/2."; +otp_11807(suite) -> + []; +otp_11807(Config) when is_list(Config) -> + {cons,0,{integer,0,97},{cons,0,{integer,0,98},{nil,0}}} = + erl_parse:abstract("ab", [{encoding,none}]), + {cons,0,{integer,0,-1},{nil,0}} = + erl_parse:abstract([-1], [{encoding,latin1}]), + ASCII = fun(I) -> I >= 0 andalso I < 128 end, + {string,0,"xyz"} = erl_parse:abstract("xyz", [{encoding,ASCII}]), + {cons,0,{integer,0,228},{nil,0}} = + erl_parse:abstract([228], [{encoding,ASCII}]), + {cons,0,{integer,0,97},{atom,0,a}} = + erl_parse:abstract("a"++a, [{encoding,latin1}]), + {'EXIT', {{badarg,bad},_}} = % minor backward incompatibility + (catch erl_parse:abstract("string", [{encoding,bad}])), + ok. + test_string(String, Expected) -> {ok, Expected, _End} = erl_scan:string(String), test(String). diff --git a/lib/stdlib/test/gen_event_SUITE.erl b/lib/stdlib/test/gen_event_SUITE.erl index 5819ef3890..60a1ba8c60 100644 --- a/lib/stdlib/test/gen_event_SUITE.erl +++ b/lib/stdlib/test/gen_event_SUITE.erl @@ -974,6 +974,10 @@ get_state(Config) when is_list(Config) -> [{dummy1_h,false,State1},{dummy1_h,id,State2}] = lists:sort(Result1), Result2 = sys:get_state(Pid, 5000), [{dummy1_h,false,State1},{dummy1_h,id,State2}] = lists:sort(Result2), + ok = sys:suspend(Pid), + Result3 = sys:get_state(Pid), + [{dummy1_h,false,State1},{dummy1_h,id,State2}] = lists:sort(Result3), + ok = sys:resume(Pid), ok = gen_event:stop(Pid), ok. @@ -998,4 +1002,11 @@ replace_state(Config) when is_list(Config) -> Replace3 = fun(_) -> exit(fail) end, [{dummy1_h,false,NState2}] = sys:replace_state(Pid, Replace3), [{dummy1_h,false,NState2}] = sys:get_state(Pid), + %% verify state replaced if process sys suspended + NState3 = "replaced again and again", + Replace4 = fun({dummy1_h,false,_}=S) -> setelement(3,S,NState3) end, + ok = sys:suspend(Pid), + [{dummy1_h,false,NState3}] = sys:replace_state(Pid, Replace4), + ok = sys:resume(Pid), + [{dummy1_h,false,NState3}] = sys:get_state(Pid), ok. diff --git a/lib/stdlib/test/gen_fsm_SUITE.erl b/lib/stdlib/test/gen_fsm_SUITE.erl index fd15838b7d..8aeec07ae8 100644 --- a/lib/stdlib/test/gen_fsm_SUITE.erl +++ b/lib/stdlib/test/gen_fsm_SUITE.erl @@ -426,6 +426,14 @@ get_state(Config) when is_list(Config) -> {idle, State} = sys:get_state(gfsm), {idle, State} = sys:get_state(gfsm, 5000), stop_it(Pid2), + + %% check that get_state works when pid is sys suspended + {ok, Pid3} = gen_fsm:start(gen_fsm_SUITE, {state_data, State}, []), + {idle, State} = sys:get_state(Pid3), + ok = sys:suspend(Pid3), + {idle, State} = sys:get_state(Pid3, 5000), + ok = sys:resume(Pid3), + stop_it(Pid3), ok. replace_state(Config) when is_list(Config) -> @@ -442,8 +450,18 @@ replace_state(Config) when is_list(Config) -> {state0, NState2} = sys:get_state(Pid), %% verify no change in state if replace function crashes Replace3 = fun(_) -> error(fail) end, - {state0, NState2} = sys:replace_state(Pid, Replace3), + {'EXIT',{{callback_failed, + {gen_fsm,system_replace_state},{error,fail}},_}} = + (catch sys:replace_state(Pid, Replace3)), {state0, NState2} = sys:get_state(Pid), + %% verify state replaced if process sys suspended + ok = sys:suspend(Pid), + Suffix2 = " and again", + NState3 = NState2 ++ Suffix2, + Replace4 = fun({StateName, _}) -> {StateName, NState3} end, + {state0, NState3} = sys:replace_state(Pid, Replace4), + ok = sys:resume(Pid), + {state0, NState3} = sys:get_state(Pid, 5000), stop_it(Pid), ok. diff --git a/lib/stdlib/test/gen_server_SUITE.erl b/lib/stdlib/test/gen_server_SUITE.erl index a360a0809b..960e7f60e7 100644 --- a/lib/stdlib/test/gen_server_SUITE.erl +++ b/lib/stdlib/test/gen_server_SUITE.erl @@ -1049,6 +1049,9 @@ get_state(Config) when is_list(Config) -> {ok, Pid} = gen_server:start_link(?MODULE, {state,State}, []), State = sys:get_state(Pid), State = sys:get_state(Pid, 5000), + ok = sys:suspend(Pid), + State = sys:get_state(Pid), + ok = sys:resume(Pid), ok. %% Verify that sys:replace_state correctly replaces gen_server state @@ -1075,8 +1078,18 @@ replace_state(Config) when is_list(Config) -> NState2 = sys:get_state(Pid, 5000), %% verify no change in state if replace function crashes Replace3 = fun(_) -> throw(fail) end, - NState2 = sys:replace_state(Pid, Replace3), + {'EXIT',{{callback_failed, + {gen_server,system_replace_state},{throw,fail}},_}} = + (catch sys:replace_state(Pid, Replace3)), NState2 = sys:get_state(Pid, 5000), + %% verify state replaced if process sys suspended + ok = sys:suspend(Pid), + Suffix2 = " and again", + NState3 = NState2 ++ Suffix2, + Replace4 = fun(S) -> S ++ Suffix2 end, + NState3 = sys:replace_state(Pid, Replace4), + ok = sys:resume(Pid), + NState3 = sys:get_state(Pid, 5000), ok. %% Test that the time for a huge message queue is not diff --git a/lib/stdlib/test/sys_SUITE.erl b/lib/stdlib/test/sys_SUITE.erl index c06ba545e7..f38bc87ae5 100644 --- a/lib/stdlib/test/sys_SUITE.erl +++ b/lib/stdlib/test/sys_SUITE.erl @@ -19,7 +19,7 @@ -module(sys_SUITE). -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2,log/1,log_to_file/1, - stats/1,trace/1,suspend/1,install/1]). + stats/1,trace/1,suspend/1,install/1,special_process/1]). -export([handle_call/3,terminate/2,init/1]). -include_lib("test_server/include/test_server.hrl"). @@ -27,14 +27,12 @@ %% Doesn't look into change_code at all -%% Doesn't address writing your own process that understands -%% system messages at all. suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - [log, log_to_file, stats, trace, suspend, install]. + [log, log_to_file, stats, trace, suspend, install, special_process]. groups() -> []. @@ -157,6 +155,84 @@ install(Config) when is_list(Config) -> ?line stop(), ok. +special_process(suite) -> []; +special_process(Config) when is_list(Config) -> + ok = spec_proc(sys_sp1), + ok = spec_proc(sys_sp2). + +spec_proc(Mod) -> + {ok,_} = Mod:start_link(100), + ok = sys:statistics(Mod,true), + ok = sys:trace(Mod,true), + 1 = Ch = Mod:alloc(), + Free = lists:seq(2,100), + Replace = case sys:get_state(Mod) of + {[Ch],Free} -> + fun({A,F}) -> + Free = F, + {A,[2,3,4]} + end; + {state,[Ch],Free} -> + fun({state,A,F}) -> + Free = F, + {state,A,[2,3,4]} + end + end, + case sys:replace_state(Mod, Replace) of + {[Ch],[2,3,4]} -> ok; + {state,[Ch],[2,3,4]} -> ok + end, + ok = Mod:free(Ch), + case sys:get_state(Mod) of + {[],[1,2,3,4]} -> ok; + {state,[],[1,2,3,4]} -> ok + end, + {ok,[{start_time,_}, + {current_time,_}, + {reductions,_}, + {messages_in,2}, + {messages_out,1}]} = sys:statistics(Mod,get), + ok = sys:statistics(Mod,false), + [] = sys:replace_state(Mod, fun(_) -> [] end), + process_flag(trap_exit,true), + ok = case catch sys:get_state(Mod) of + [] -> + ok; + {'EXIT',{{callback_failed, + {Mod,system_get_state},{throw,fail}},_}} -> + ok + end, + Mod:stop(), + WaitForUnregister = fun W() -> + case whereis(Mod) of + undefined -> ok; + _ -> timer:sleep(10), W() + end + end, + WaitForUnregister(), + {ok,_} = Mod:start_link(4), + ok = case catch sys:replace_state(Mod, fun(_) -> {} end) of + {} -> + ok; + {'EXIT',{{callback_failed, + {Mod,system_replace_state},{throw,fail}},_}} -> + ok + end, + Mod:stop(), + WaitForUnregister(), + {ok,_} = Mod:start_link(4), + StateFun = fun(_) -> error(fail) end, + ok = case catch sys:replace_state(Mod, StateFun) of + {} -> + ok; + {'EXIT',{{callback_failed, + {Mod,system_replace_state},{error,fail}},_}} -> + ok; + {'EXIT',{{callback_failed,StateFun,{error,fail}},_}} -> + ok + end, + Mod:stop(). + %%%%%%%%%%%%%%%%%%%% %% Dummy server diff --git a/lib/stdlib/test/sys_sp1.erl b/lib/stdlib/test/sys_sp1.erl new file mode 100644 index 0000000000..e84ffcfa12 --- /dev/null +++ b/lib/stdlib/test/sys_sp1.erl @@ -0,0 +1,114 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% +-module(sys_sp1). +-export([start_link/1, stop/0]). +-export([alloc/0, free/1]). +-export([init/1]). +-export([system_continue/3, system_terminate/4, + write_debug/3, + system_get_state/1, system_replace_state/2]). + +%% Implements the ch4 example from the Design Principles doc. Same as +%% sys_sp2 except this module exports system_get_state/1 and +%% system_replace_state/2 + +start_link(NumCh) -> + proc_lib:start_link(?MODULE, init, [[self(),NumCh]]). + +stop() -> + ?MODULE ! stop, + ok. + +alloc() -> + ?MODULE ! {self(), alloc}, + receive + {?MODULE, Res} -> + Res + end. + +free(Ch) -> + ?MODULE ! {free, Ch}, + ok. + +init([Parent,NumCh]) -> + register(?MODULE, self()), + Chs = channels(NumCh), + Deb = sys:debug_options([]), + proc_lib:init_ack(Parent, {ok, self()}), + loop(Chs, Parent, Deb). + +loop(Chs, Parent, Deb) -> + receive + {From, alloc} -> + Deb2 = sys:handle_debug(Deb, fun write_debug/3, + ?MODULE, {in, alloc, From}), + {Ch, Chs2} = alloc(Chs), + From ! {?MODULE, Ch}, + Deb3 = sys:handle_debug(Deb2, fun write_debug/3, + ?MODULE, {out, {?MODULE, Ch}, From}), + loop(Chs2, Parent, Deb3); + {free, Ch} -> + Deb2 = sys:handle_debug(Deb, fun write_debug/3, + ?MODULE, {in, {free, Ch}}), + Chs2 = free(Ch, Chs), + loop(Chs2, Parent, Deb2); + {system, From, Request} -> + sys:handle_system_msg(Request, From, Parent, + ?MODULE, Deb, Chs); + stop -> + sys:handle_debug(Deb, fun write_debug/3, + ?MODULE, {in, stop}), + ok + end. + +system_continue(Parent, Deb, Chs) -> + loop(Chs, Parent, Deb). + +system_terminate(Reason, _Parent, _Deb, _Chs) -> + exit(Reason). + +system_get_state([]) -> + throw(fail); +system_get_state(Chs) -> + {ok, Chs}. + +system_replace_state(_StateFun, {}) -> + throw(fail); +system_replace_state(StateFun, Chs) -> + NChs = StateFun(Chs), + {ok, NChs, NChs}. + +write_debug(Dev, Event, Name) -> + io:format(Dev, "~p event = ~p~n", [Name, Event]). + +channels(NumCh) -> + {_Allocated=[], _Free=lists:seq(1,NumCh)}. + +alloc({_, []}) -> + {error, "no channels available"}; +alloc({Allocated, [H|T]}) -> + {H, {[H|Allocated], T}}. + +free(Ch, {Alloc, Free}=Channels) -> + case lists:member(Ch, Alloc) of + true -> + {lists:delete(Ch, Alloc), [Ch|Free]}; + false -> + Channels + end. diff --git a/lib/stdlib/test/sys_sp2.erl b/lib/stdlib/test/sys_sp2.erl new file mode 100644 index 0000000000..56a5e4d071 --- /dev/null +++ b/lib/stdlib/test/sys_sp2.erl @@ -0,0 +1,107 @@ +%% +%% %CopyrightBegin% +%% +%% Copyright Ericsson AB 1996-2013. All Rights Reserved. +%% +%% The contents of this file are subject to the Erlang Public License, +%% Version 1.1, (the "License"); you may not use this file except in +%% compliance with the License. You should have received a copy of the +%% Erlang Public License along with this software. If not, it can be +%% retrieved online at http://www.erlang.org/. +%% +%% Software distributed under the License is distributed on an "AS IS" +%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See +%% the License for the specific language governing rights and limitations +%% under the License. +%% +%% %CopyrightEnd% +%% +-module(sys_sp2). +-export([start_link/1, stop/0]). +-export([alloc/0, free/1]). +-export([init/1]). +-export([system_continue/3, system_terminate/4, + write_debug/3]). + +%% Implements the ch4 example from the Design Principles doc. Same as +%% sys_sp1 except this module does not export system_get_state/1 or +%% system_replace_state/2 + +start_link(NumCh) -> + proc_lib:start_link(?MODULE, init, [[self(),NumCh]]). + +stop() -> + ?MODULE ! stop, + ok. + +alloc() -> + ?MODULE ! {self(), alloc}, + receive + {?MODULE, Res} -> + Res + end. + +free(Ch) -> + ?MODULE ! {free, Ch}, + ok. + +%% can't use 2-tuple for state here as we do in sys_sp1, since the 2-tuple +%% is not compatible with the backward compatibility handling for +%% sys:get_state in sys.erl +-record(state, {alloc,free}). + +init([Parent,NumCh]) -> + register(?MODULE, self()), + Chs = channels(NumCh), + Deb = sys:debug_options([]), + proc_lib:init_ack(Parent, {ok, self()}), + loop(Chs, Parent, Deb). + +loop(Chs, Parent, Deb) -> + receive + {From, alloc} -> + Deb2 = sys:handle_debug(Deb, fun write_debug/3, + ?MODULE, {in, alloc, From}), + {Ch, Chs2} = alloc(Chs), + From ! {?MODULE, Ch}, + Deb3 = sys:handle_debug(Deb2, fun write_debug/3, + ?MODULE, {out, {?MODULE, Ch}, From}), + loop(Chs2, Parent, Deb3); + {free, Ch} -> + Deb2 = sys:handle_debug(Deb, fun write_debug/3, + ?MODULE, {in, {free, Ch}}), + Chs2 = free(Ch, Chs), + loop(Chs2, Parent, Deb2); + {system, From, Request} -> + sys:handle_system_msg(Request, From, Parent, + ?MODULE, Deb, Chs); + stop -> + sys:handle_debug(Deb, fun write_debug/3, + ?MODULE, {in, stop}), + ok + end. + +system_continue(Parent, Deb, Chs) -> + loop(Chs, Parent, Deb). + +system_terminate(Reason, _Parent, _Deb, _Chs) -> + exit(Reason). + +write_debug(Dev, Event, Name) -> + io:format(Dev, "~p event = ~p~n", [Name, Event]). + +channels(NumCh) -> + #state{alloc=[], free=lists:seq(1,NumCh)}. + +alloc(#state{free=[]}=Channels) -> + {{error, "no channels available"}, Channels}; +alloc(#state{alloc=Allocated, free=[H|T]}) -> + {H, #state{alloc=[H|Allocated], free=T}}. + +free(Ch, #state{alloc=Alloc, free=Free}=Channels) -> + case lists:member(Ch, Alloc) of + true -> + #state{alloc=lists:delete(Ch, Alloc), free=[Ch|Free]}; + false -> + Channels + end. @@ -1283,8 +1283,8 @@ do_patch_app () fi # Generate .rel, .script and .boot - to tmp dir - start_clean="{release, {\"OTP APN 181 01\",\"$otp_major_vsn\"}, {erts, \"$erts_vsn\"},\n [{kernel,\"$kernel_vsn\"},\n {stdlib,\"$stdlib_vsn\"}]}.\n" - start_sasl="{release, {\"OTP APN 181 01\",\"$otp_major_vsn\"}, {erts, \"$erts_vsn\"},\n [{kernel,\"$kernel_vsn\"},\n {stdlib,\"$stdlib_vsn\"},\n {sasl,\"$sasl_vsn\"}]}.\n" + start_clean="{release, {\"Erlang/OTP\",\"$otp_major_vsn\"}, {erts, \"$erts_vsn\"},\n [{kernel,\"$kernel_vsn\"},\n {stdlib,\"$stdlib_vsn\"}]}.\n" + start_sasl="{release, {\"Erlang/OTP\",\"$otp_major_vsn\"}, {erts, \"$erts_vsn\"},\n [{kernel,\"$kernel_vsn\"},\n {stdlib,\"$stdlib_vsn\"},\n {sasl,\"$sasl_vsn\"}]}.\n" tmp_dir="$target_dir/tmp"; if [ ! -d "$tmp_dir" ]; then diff --git a/system/doc/design_principles/spec_proc.xml b/system/doc/design_principles/spec_proc.xml index 8de7a5fe03..69bf2e0448 100644 --- a/system/doc/design_principles/spec_proc.xml +++ b/system/doc/design_principles/spec_proc.xml @@ -130,7 +130,8 @@ ok -export([alloc/0, free/1]). -export([init/1]). -export([system_continue/3, system_terminate/4, - write_debug/3]). + write_debug/3, + system_get_state/1, system_replace_state/2]). start_link() -> proc_lib:start_link(ch4, init, [self()]). @@ -156,15 +157,15 @@ init(Parent) -> loop(Chs, Parent, Deb) -> receive {From, alloc} -> - Deb2 = sys:handle_debug(Deb, {ch4, write_debug}, + Deb2 = sys:handle_debug(Deb, fun ch4:write_debug/3, ch4, {in, alloc, From}), {Ch, Chs2} = alloc(Chs), From ! {ch4, Ch}, - Deb3 = sys:handle_debug(Deb2, {ch4, write_debug}, + Deb3 = sys:handle_debug(Deb2, fun ch4:write_debug/3, ch4, {out, {ch4, Ch}, From}), loop(Chs2, Parent, Deb3); {free, Ch} -> - Deb2 = sys:handle_debug(Deb, {ch4, write_debug}, + Deb2 = sys:handle_debug(Deb, fun ch4:write_debug/3, ch4, {in, {free, Ch}}), Chs2 = free(Ch, Chs), loop(Chs2, Parent, Deb2); @@ -177,9 +178,16 @@ loop(Chs, Parent, Deb) -> system_continue(Parent, Deb, Chs) -> loop(Chs, Parent, Deb). -system_terminate(Reason, Parent, Deb, Chs) -> +system_terminate(Reason, _Parent, _Deb, _Chs) -> exit(Reason). +system_get_state(Chs) -> + {ok, Chs}. + +system_replace_state(StateFun, Chs) -> + NChs = StateFun(Chs), + {ok, NChs, NChs}. + write_debug(Dev, Event, Name) -> io:format(Dev, "~p event = ~p~n", [Name, Event]).</pre> <p>Example on how the simple debugging functions in <c>sys</c> can @@ -281,10 +289,10 @@ sys:handle_debug(Deb, Func, Info, Event) => Deb1</code> <p><c>Deb</c> is the debug structure.</p> </item> <item> - <p><c>Func</c> is a tuple <c>{Module, Name}</c> (or a fun) and - should specify a (user defined) function used to format + <p><c>Func</c> is a fun specifying + a (user defined) function used to format trace output. For each system event, the format function is - called as <c>Module:Name(Dev, Event, Info)</c>, where:</p> + called as <c>Func(Dev, Event, Info)</c>, where:</p> <list type="bulleted"> <item> <p><c>Dev</c> is the IO device to which the output should @@ -319,15 +327,15 @@ sys:handle_debug(Deb, Func, Info, Event) => Deb1</code> loop(Chs, Parent, Deb) -> receive {From, alloc} -> - Deb2 = sys:handle_debug(Deb, {ch4, write_debug}, + Deb2 = sys:handle_debug(Deb, fun ch4:write_debug/3, ch4, {in, alloc, From}), {Ch, Chs2} = alloc(Chs), From ! {ch4, Ch}, - Deb3 = sys:handle_debug(Deb2, {ch4, write_debug}, + Deb3 = sys:handle_debug(Deb2, fun ch4:write_debug/3, ch4, {out, {ch4, Ch}, From}), loop(Chs2, Parent, Deb3); {free, Ch} -> - Deb2 = sys:handle_debug(Deb, {ch4, write_debug}, + Deb2 = sys:handle_debug(Deb, fun ch4:write_debug/3, ch4, {in, {free, Ch}}), Chs2 = free(Ch, Chs), loop(Chs2, Parent, Deb2); @@ -366,8 +374,15 @@ Module:system_terminate(Reason, Parent, Deb, State)</code> <item><c>Module</c> is the name of the module.</item> <item><c>Deb</c> is the debug structure.</item> <item><c>State</c> is a term describing the internal state and - is passed to <c>system_continue</c>/<c>system_terminate</c>.</item> + is passed to <c>system_continue</c>/<c>system_terminate</c>/ + <c>system_get_state</c>/<c>system_replace_state</c>.</item> </list> + <p>If the process should return its state <c>handle_system_msg</c> will call:</p> + <code type="none"> +Module:system_get_state(State)</code> + <p>or if the process should replace its state using the fun <c>StateFun</c>:</p> + <code type="none"> +Module:system_replace_state(StateFun, State)</code> <p>In the example:</p> <code type="none"> loop(Chs, Parent, Deb) -> @@ -383,7 +398,15 @@ system_continue(Parent, Deb, Chs) -> loop(Chs, Parent, Deb). system_terminate(Reason, Parent, Deb, Chs) -> - exit(Reason).</code> + exit(Reason). + +system_get_state(Chs) -> + {ok, Chs, Chs}. + +system_replace_state(StateFun, Chs) -> + NChs = StateFun(Chs), + {ok, NChs, NChs}. +</code> <p>If the special process is set to trap exits, note that if the parent process terminates, the expected behavior is to terminate with the same reason:</p> |