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-rw-r--r--erts/emulator/sys/ose/sys.c1847
1 files changed, 0 insertions, 1847 deletions
diff --git a/erts/emulator/sys/ose/sys.c b/erts/emulator/sys/ose/sys.c
deleted file mode 100644
index e354faf02c..0000000000
--- a/erts/emulator/sys/ose/sys.c
+++ /dev/null
@@ -1,1847 +0,0 @@
-/*
- * %CopyrightBegin%
- *
- * Copyright Ericsson AB 1996-2013. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- * %CopyrightEnd%
- */
-
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-#include "sys/time.h"
-#include "time.h"
-#include "sys/uio.h"
-#include "termios.h"
-#include "ctype.h"
-#include "termios.h"
-
-#ifdef HAVE_FCNTL_H
-#include "fcntl.h"
-#endif
-
-#ifdef HAVE_SYS_IOCTL_H
-#include "sys/ioctl.h"
-#endif
-
-#define ERTS_WANT_BREAK_HANDLING
-#define WANT_NONBLOCKING
-#include "sys.h"
-#include "erl_thr_progress.h"
-
-#ifdef USE_THREADS
-#include "erl_threads.h"
-#endif
-
-#include "erl_mseg.h"
-
-#include "unistd.h"
-#include "efs.h"
-#include "erl_printf.h"
-#include "aio.h"
-#include "pm.h"
-#include "fcntl.h"
-
-/* Set the define to 1 to get some logging */
-#if 0
-#include "ramlog.h"
-#define LOG(output) ramlog_printf output
-#else
-#define LOG(output)
-#endif
-
-extern char **environ;
-static erts_smp_rwmtx_t environ_rwmtx;
-static PROCESS sig_proxy_pid = 0;
-
-#define MAX_VSIZE 16 /* Max number of entries allowed in an I/O
- * vector sock_sendv().
- */
-/*
- * Don't need global.h, but bif_table.h (included by bif.h),
- * won't compile otherwise
- */
-#include "global.h"
-#include "bif.h"
-
-#include "erl_sys_driver.h"
-#include "erl_check_io.h"
-#include "erl_cpu_topology.h"
-
-/* The priority for reader/writer processes */
-#define FD_PROC_PRI get_pri(current_process())
-
-typedef struct ErtsSysReportExit_ ErtsSysReportExit;
-struct ErtsSysReportExit_ {
- ErtsSysReportExit *next;
- Eterm port;
- int pid;
- int ifd;
- int ofd;
- ErlDrvEvent attach_event;
- ErlDrvEvent input_event;
- ErlDrvEvent output_event;
-};
-
-/* This data is shared by these drivers - initialized by spawn_init() */
-static struct driver_data {
- ErlDrvPort port_num;
- int ofd;
- int ifd;
- int packet_bytes;
- ErtsSysReportExit *report_exit;
- int pid;
- int alive;
- int status;
- ErlDrvEvent input_event;
- ErlDrvEvent output_event;
- struct aiocb aiocb;
- FmHandle handle;
- char *install_handle;
-} *driver_data; /* indexed by fd */
-
-struct async {
- SIGSELECT signo;
- ErlDrvTermData port;
- ErlDrvTermData proc;
- PROCESS spid;
- PROCESS target;
- Uint32 ref;
-};
-
-static ErtsSysReportExit *report_exit_list;
-static ERTS_INLINE void report_exit_status(ErtsSysReportExit *rep, int status);
-
-extern int driver_interrupt(int, int);
-extern void do_break(void);
-
-extern void erl_sys_args(int*, char**);
-
-/* The following two defs should probably be moved somewhere else */
-
-extern void erts_sys_init_float(void);
-
-extern void erl_crash_dump(char* file, int line, char* fmt, ...);
-
-#define DIR_SEPARATOR_CHAR '/'
-
-#if defined(DEBUG)
-#define ERL_BUILD_TYPE_MARKER ".debug"
-#else /* opt */
-#define ERL_BUILD_TYPE_MARKER
-#endif
-
-#define CHILD_SETUP_PROG_NAME "child_setup" ERL_BUILD_TYPE_MARKER
-
-#ifdef DEBUG
-static int debug_log = 0;
-#endif
-
-#ifdef ERTS_SMP
-static erts_smp_atomic32_t have_prepared_crash_dump;
-#define ERTS_PREPARED_CRASH_DUMP \
- ((int) erts_smp_atomic32_xchg_nob(&have_prepared_crash_dump, 1))
-#else
-static volatile int have_prepared_crash_dump;
-#define ERTS_PREPARED_CRASH_DUMP \
- (have_prepared_crash_dump++)
-#endif
-
-static erts_smp_atomic_t sys_misc_mem_sz;
-
-#if defined(ERTS_SMP)
-erts_mtx_t chld_stat_mtx;
-#endif
-
-#if defined(ERTS_SMP) /* ------------------------------------------------- */
-#define CHLD_STAT_LOCK erts_mtx_lock(&chld_stat_mtx)
-#define CHLD_STAT_UNLOCK erts_mtx_unlock(&chld_stat_mtx)
-
-#else /* ------------------------------------------------------------------- */
-#define CHLD_STAT_LOCK
-#define CHLD_STAT_UNLOCK
-static volatile int children_died;
-#endif
-
-#define SET_AIO(REQ,FD,SIZE,BUFF) \
- memset(&(REQ),0,sizeof(REQ)); \
- (REQ).aio_fildes = FD; \
- (REQ).aio_offset = FM_POSITION_CURRENT; \
- (REQ).aio_nbytes = SIZE; \
- (REQ).aio_buf = BUFF; \
- (REQ).aio_sigevent.sigev_notify = SIGEV_NONE
-
-/* the first sizeof(struct aiocb *) bytes of the write buffer
- * will contain the pointer to the aiocb struct, this needs
- * to be freed between asynchronous writes.
- * A write of 0 bytes is ignored. */
-#define WRITE_AIO(FD,SIZE,BUFF) do { \
- if (SIZE > 0) { \
- struct aiocb *write_req = driver_alloc(sizeof(struct aiocb)); \
- char *write_buff = driver_alloc((sizeof(char)*SIZE)+1+ \
- (sizeof(struct aiocb *))); \
- *(struct aiocb **)write_buff = (struct aiocb *)write_req; \
- write_buff += sizeof(struct aiocb *); \
- memcpy(write_buff,BUFF,SIZE+1); \
- SET_AIO(*write_req,FD,SIZE,write_buff); \
- if (aio_write(write_req)) \
- ramlog_printf("%s:%d: write failed with %d\n", \
- __FILE__,__LINE__,errno); \
- } \
-} while(0)
-
-/* free the write_buffer and write_req
- * created in the WRITE_AIO() request macro */
-#define FREE_AIO(ptr) do { \
- struct aiocb *aiocb_ptr; \
- char *buffer_ptr; \
- aiocb_ptr = *(struct aiocb **)((ptr)-sizeof(struct aiocb *)); \
- buffer_ptr = (((char*)ptr)-sizeof(struct aiocb *)); \
- driver_free(aiocb_ptr); \
- driver_free(buffer_ptr); \
-} while(0)
-
-#define DISPATCH_AIO(sig) do { \
- if (aio_dispatch(sig)) \
- ramlog_printf("%s:%d: dispatch failed with %d\n", \
- __FILE__,__LINE__,errno); \
- } while(0)
-
-#define AIO_PIPE_SIZE 1024
-
-/* debug print macros */
-#define DEBUG_RES 0
-
-#ifdef DEBUG_RES
-#define DEBUG_CHECK_RES(actual, expected) \
- do { \
- if (actual != expected ) { \
- ramlog_printf("Result check failed" \
- " got: 0x%08x expected:0x%08x\nat: %s:%d\n", \
- actual, expected, __FILE__, __LINE__); \
- abort(); /* This might perhaps be too harsh? */ \
- } \
- } while(0)
-#else
-#define DEBUG_CHECK_RES
-#endif
-
-static struct fd_data {
- char pbuf[4]; /* hold partial packet bytes */
- int psz; /* size of pbuf */
- char *buf;
- char *cpos;
- int sz;
- int remain; /* for input on fd */
-} *fd_data; /* indexed by fd */
-
-/********************* General functions ****************************/
-
-/* This is used by both the drivers and general I/O, must be set early */
-static int max_files = -1;
-
-/*
- * a few variables used by the break handler
- */
-#ifdef ERTS_SMP
-erts_smp_atomic32_t erts_break_requested;
-#define ERTS_SET_BREAK_REQUESTED \
- erts_smp_atomic32_set_nob(&erts_break_requested, (erts_aint32_t) 1)
-#define ERTS_UNSET_BREAK_REQUESTED \
- erts_smp_atomic32_set_nob(&erts_break_requested, (erts_aint32_t) 0)
-#else
-volatile int erts_break_requested = 0;
-#define ERTS_SET_BREAK_REQUESTED (erts_break_requested = 1)
-#define ERTS_UNSET_BREAK_REQUESTED (erts_break_requested = 0)
-#endif
-/* set early so the break handler has access to initial mode */
-static struct termios initial_tty_mode;
-static int replace_intr = 0;
-/* assume yes initially, ttsl_init will clear it */
-int using_oldshell = 1;
-static PROCESS get_signal_proxy_pid(void);
-
-static void
-init_check_io(void)
-{
- erts_init_check_io();
- max_files = erts_check_io_max_files();
-}
-
-#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
-#define ERTS_CHK_IO_AS_INTR() erts_check_io_async_sig_interrupt()
-#else
-#define ERTS_CHK_IO_AS_INTR() erts_check_io_interrupt(1)
-#endif
-#define ERTS_CHK_IO_INTR erts_check_io_interrupt
-#define ERTS_CHK_IO_INTR_TMD erts_check_io_interrupt_timed
-#define ERTS_CHK_IO erts_check_io
-#define ERTS_CHK_IO_SZ erts_check_io_size
-
-
-void
-erts_sys_schedule_interrupt(int set)
-{
- ERTS_CHK_IO_INTR(set);
-}
-
-#ifdef ERTS_SMP
-void
-erts_sys_schedule_interrupt_timed(int set, ErtsMonotonicTime timeout_time)
-{
- ERTS_CHK_IO_INTR_TMD(set, timeout_time);
-}
-#endif
-
-Uint
-erts_sys_misc_mem_sz(void)
-{
- Uint res = ERTS_CHK_IO_SZ();
- res += erts_smp_atomic_read_mb(&sys_misc_mem_sz);
- return res;
-}
-
-/*
- * reset the terminal to the original settings on exit
- */
-void sys_tty_reset(int exit_code)
-{
- if (using_oldshell && !replace_intr) {
- SET_BLOCKING(0);
- }
- else if (isatty(0)) {
- tcsetattr(0,TCSANOW,&initial_tty_mode);
- }
-}
-
-#ifdef USE_THREADS
-
-typedef struct {
- int sched_bind_data;
-} erts_thr_create_data_t;
-
-/*
- * thr_create_prepare() is called in parent thread before thread creation.
- * Returned value is passed as argument to thr_create_cleanup().
- */
-static void *
-thr_create_prepare(void)
-{
- erts_thr_create_data_t *tcdp;
-
- tcdp = erts_alloc(ERTS_ALC_T_TMP, sizeof(erts_thr_create_data_t));
-
- tcdp->sched_bind_data = erts_sched_bind_atthrcreate_prepare();
-
- return (void *) tcdp;
-}
-
-
-/* thr_create_cleanup() is called in parent thread after thread creation. */
-static void
-thr_create_cleanup(void *vtcdp)
-{
- erts_thr_create_data_t *tcdp = (erts_thr_create_data_t *) vtcdp;
-
- erts_sched_bind_atthrcreate_parent(tcdp->sched_bind_data);
-
- erts_free(ERTS_ALC_T_TMP, tcdp);
-}
-
-static void
-thr_create_prepare_child(void *vtcdp)
-{
- erts_thr_create_data_t *tcdp = (erts_thr_create_data_t *) vtcdp;
-
-#ifdef ERTS_ENABLE_LOCK_COUNT
- erts_lcnt_thread_setup();
-#endif
-
- erts_sched_bind_atthrcreate_child(tcdp->sched_bind_data);
-}
-
-#endif /* #ifdef USE_THREADS */
-
-/* The two functions below are stolen from win_con.c
- They have to use malloc/free/realloc directly becasue
- we want to do able to do erts_printf very early on.
- */
-#define VPRINTF_BUF_INC_SIZE 128
-static erts_dsprintf_buf_t *
-grow_vprintf_buf(erts_dsprintf_buf_t *dsbufp, size_t need)
-{
- char *buf;
- size_t size;
-
- ASSERT(dsbufp);
-
- if (!dsbufp->str) {
- size = (((need + VPRINTF_BUF_INC_SIZE - 1)
- / VPRINTF_BUF_INC_SIZE)
- * VPRINTF_BUF_INC_SIZE);
- buf = (char *) malloc(size * sizeof(char));
- }
- else {
- size_t free_size = dsbufp->size - dsbufp->str_len;
-
- if (need <= free_size)
- return dsbufp;
-
- size = need - free_size + VPRINTF_BUF_INC_SIZE;
- size = (((size + VPRINTF_BUF_INC_SIZE - 1)
- / VPRINTF_BUF_INC_SIZE)
- * VPRINTF_BUF_INC_SIZE);
- size += dsbufp->size;
- buf = (char *) realloc((void *) dsbufp->str,
- size * sizeof(char));
- }
- if (!buf)
- return NULL;
- if (buf != dsbufp->str)
- dsbufp->str = buf;
- dsbufp->size = size;
- return dsbufp;
-}
-
-static int erts_sys_ramlog_printf(char *format, va_list arg_list)
-{
- int res,i;
- erts_dsprintf_buf_t dsbuf = ERTS_DSPRINTF_BUF_INITER(grow_vprintf_buf);
- res = erts_vdsprintf(&dsbuf, format, arg_list);
- if (res >= 0) {
- for (i = 0; i < dsbuf.str_len; i+= 50)
- /* We print 50 characters at a time because otherwise
- the ramlog looks broken */
- ramlog_printf("%.*s",dsbuf.str_len-50 < 0?dsbuf.str_len:50,dsbuf.str+i);
- }
- if (dsbuf.str)
- free((void *) dsbuf.str);
- return res;
-}
-
-void
-erts_sys_pre_init(void)
-{
- erts_printf_add_cr_to_stdout = 1;
- erts_printf_add_cr_to_stderr = 1;
-#ifdef USE_THREADS
- {
- erts_thr_init_data_t eid = ERTS_THR_INIT_DATA_DEF_INITER;
-
- eid.thread_create_child_func = thr_create_prepare_child;
- /* Before creation in parent */
- eid.thread_create_prepare_func = thr_create_prepare;
- /* After creation in parent */
- eid.thread_create_parent_func = thr_create_cleanup,
-
- erts_thr_init(&eid);
-
- report_exit_list = NULL;
-
-#ifdef ERTS_ENABLE_LOCK_COUNT
- erts_lcnt_init();
-#endif
-
-#if defined(ERTS_SMP)
- erts_mtx_init(&chld_stat_mtx, "child_status");
-#endif
- }
-#ifdef ERTS_SMP
- erts_smp_atomic32_init_nob(&erts_break_requested, 0);
- erts_smp_atomic32_init_nob(&have_prepared_crash_dump, 0);
-#else
- erts_break_requested = 0;
- have_prepared_crash_dump = 0;
-#endif
-#if !defined(ERTS_SMP)
- children_died = 0;
-#endif
-#endif /* USE_THREADS */
-
- erts_printf_stdout_func = erts_sys_ramlog_printf;
-
- erts_smp_atomic_init_nob(&sys_misc_mem_sz, 0);
-}
-
-void
-erl_sys_init(void)
-{
-
-#ifdef USE_SETLINEBUF
- setlinebuf(stdout);
-#else
- setvbuf(stdout, (char *)NULL, _IOLBF, BUFSIZ);
-#endif
-
- erts_sys_init_float();
-
- /* we save this so the break handler can set and reset it properly */
- /* also so that we can reset on exit (break handler or not) */
- if (isatty(0)) {
- tcgetattr(0,&initial_tty_mode);
- }
- tzset(); /* Required at least for NetBSD with localtime_r() */
-}
-
-static ERTS_INLINE int
-prepare_crash_dump(int secs)
-{
-#define NUFBUF (3)
- int i, max;
- char env[21]; /* enough to hold any 64-bit integer */
- size_t envsz;
- /*DeclareTmpHeapNoproc(heap,NUFBUF);*/
- /*Eterm *hp = heap;*/
- /*Eterm list = NIL;*/
- int has_heart = 0;
-
- UseTmpHeapNoproc(NUFBUF);
-
- if (ERTS_PREPARED_CRASH_DUMP)
- return 0; /* We have already been called */
-
-
- /* Positive secs means an alarm must be set
- * 0 or negative means no alarm
- *
- * Set alarm before we try to write to a port
- * we don't want to hang on a port write with
- * no alarm.
- *
- */
-
-#if 0 /*ose TBD!!!*/
- if (secs >= 0) {
- alarm((unsigned int)secs);
- }
-#endif
-
- /* Make sure we unregister at epmd (unknown fd) and get at least
- one free filedescriptor (for erl_crash.dump) */
-
- max = max_files;
- if (max < 1024)
- max = 1024;
- for (i = 3; i < max; i++) {
- close(i);
- }
-
- envsz = sizeof(env);
- i = erts_sys_getenv__("ERL_CRASH_DUMP_NICE", env, &envsz);
- if (i >= 0) {
- int nice_val;
- nice_val = i != 0 ? 0 : atoi(env);
- if (nice_val > 39) {
- nice_val = 39;
- }
- set_pri(nice_val);
- }
-
- UnUseTmpHeapNoproc(NUFBUF);
-#undef NUFBUF
- return has_heart;
-}
-
-int erts_sys_prepare_crash_dump(int secs)
-{
- return prepare_crash_dump(secs);
-}
-
-static ERTS_INLINE void
-break_requested(void)
-{
- /*
- * just set a flag - checked for and handled by
- * scheduler threads erts_check_io() (not signal handler).
- */
-#ifdef DEBUG
- fprintf(stderr,"break!\n");
-#endif
- if (ERTS_BREAK_REQUESTED)
- erts_exit(ERTS_INTR_EXIT, "");
-
- ERTS_SET_BREAK_REQUESTED;
- ERTS_CHK_IO_AS_INTR(); /* Make sure we don't sleep in poll */
-}
-
-/* Disable break */
-void erts_set_ignore_break(void) {
-
-}
-
-/* Don't use ctrl-c for break handler but let it be
- used by the shell instead (see user_drv.erl) */
-void erts_replace_intr(void) {
- struct termios mode;
-
- if (isatty(0)) {
- tcgetattr(0, &mode);
-
- /* here's an example of how to replace ctrl-c with ctrl-u */
- /* mode.c_cc[VKILL] = 0;
- mode.c_cc[VINTR] = CKILL; */
-
- mode.c_cc[VINTR] = 0; /* disable ctrl-c */
- tcsetattr(0, TCSANOW, &mode);
- replace_intr = 1;
- }
-}
-
-void init_break_handler(void)
-{
-
-}
-
-int sys_max_files(void)
-{
- return(max_files);
-}
-
-
-/************************** OS info *******************************/
-
-/* Used by erlang:info/1. */
-/* (This code was formerly in drv.XXX/XXX_os_drv.c) */
-
-char os_type[] = "ose";
-
-void
-os_flavor(char* namebuf, /* Where to return the name. */
- unsigned size) /* Size of name buffer. */
-{
-#if 0
- struct utsname uts; /* Information about the system. */
- char* s;
-
- (void) uname(&uts);
- for (s = uts.sysname; *s; s++) {
- if (isupper((int) *s)) {
- *s = tolower((int) *s);
- }
- }
- strcpy(namebuf, uts.sysname);
-#else
- strncpy(namebuf, "release", size);
-#endif
-}
-
-void
-os_version(pMajor, pMinor, pBuild)
-int* pMajor; /* Pointer to major version. */
-int* pMinor; /* Pointer to minor version. */
-int* pBuild; /* Pointer to build number. */
-{
- *pMajor = 5;
- *pMinor = 7;
- *pBuild = 0;
-}
-
-void init_getenv_state(GETENV_STATE *state)
-{
- erts_smp_rwmtx_rlock(&environ_rwmtx);
- *state = NULL;
-}
-
-char **environ; /*ose - needs replacement*/
-
-char *getenv_string(GETENV_STATE *state0)
-{
- char **state = (char **) *state0;
- char *cp;
-
- ERTS_SMP_LC_ASSERT(erts_smp_lc_rwmtx_is_rlocked(&environ_rwmtx));
-
- if (state == NULL)
- state = environ;
-
- cp = *state++;
- *state0 = (GETENV_STATE) state;
-
- return cp;
-}
-
-void fini_getenv_state(GETENV_STATE *state)
-{
- *state = NULL;
- erts_smp_rwmtx_runlock(&environ_rwmtx);
-}
-
-
-/************************** Port I/O *******************************/
-
-/* I. Common stuff */
-
-union SIGNAL {
- SIGSELECT sig_no;
- struct FmReadPtr fm_read_reply;
- struct FmWritePtr fm_write_reply;
- struct async async;
-};
-
-/* II. The spawn/fd drivers */
-
-/*
- * Decreasing the size of it below 16384 is not allowed.
- */
-#define ERTS_SYS_READ_BUF_SZ (64*1024)
-
-/* Driver interfaces */
-static ErlDrvData spawn_start(ErlDrvPort, char*, SysDriverOpts*);
-static ErlDrvData fd_start(ErlDrvPort, char*, SysDriverOpts*);
-static ErlDrvSSizeT fd_control(ErlDrvData, unsigned int, char *, ErlDrvSizeT,
- char **, ErlDrvSizeT);
-static int spawn_init(void);
-static void fd_stop(ErlDrvData);
-static void erl_stop(ErlDrvData);
-static void ready_input(ErlDrvData, ErlDrvEvent);
-static void ready_output(ErlDrvData, ErlDrvEvent);
-static void output(ErlDrvData, char*, ErlDrvSizeT);
-static void stop_select(ErlDrvEvent, void*);
-
-static PROCESS
-get_signal_proxy_pid(void) {
- union SIGNAL *sig;
- SIGSELECT any_sig[] = {1,ERTS_SIGNAL_OSE_DRV_ATTACH};
-
- if (!sig_proxy_pid) {
- sig = alloc(sizeof(union SIGNAL), ERTS_SIGNAL_OSE_DRV_ATTACH);
- hunt("ose_signal_driver_proxy", 0, NULL, &sig);
- sig = receive(any_sig);
- sig_proxy_pid = sender(&sig);
- free_buf(&sig);
- }
- ASSERT(sig_proxy_pid);
- return sig_proxy_pid;
-}
-
-static ErlDrvOseEventId
-resolve_signal(union SIGNAL* sig) {
- switch(sig->sig_no) {
-
- case FM_READ_PTR_REPLY:
- return (ErlDrvOseEventId)sig->fm_read_reply.handle;
-
- case FM_WRITE_PTR_REPLY:
- return (ErlDrvOseEventId)sig->fm_write_reply.handle;
-
- case ERTS_SIGNAL_OSE_DRV_ATTACH:
- return (ErlDrvOseEventId)sig->async.target;
-
- default:
- break;
- }
- return (ErlDrvOseEventId)-1;
-}
-
-struct erl_drv_entry spawn_driver_entry = {
- spawn_init,
- spawn_start,
- NULL, /* erl_stop, */
- output,
- ready_input,
- ready_output,
- "spawn",
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- ERL_DRV_EXTENDED_MARKER,
- ERL_DRV_EXTENDED_MAJOR_VERSION,
- ERL_DRV_EXTENDED_MINOR_VERSION,
- ERL_DRV_FLAG_USE_PORT_LOCKING,
- NULL, NULL,
- stop_select
-};
-struct erl_drv_entry fd_driver_entry = {
- NULL,
- fd_start,
- fd_stop,
- output,
- ready_input,
- ready_output,
- "fd",
- NULL,
- NULL,
- fd_control,
- NULL,
- NULL,
- NULL, /* ready_async */
- NULL, /* flush */
- NULL, /* call */
- NULL, /* event */
- ERL_DRV_EXTENDED_MARKER,
- ERL_DRV_EXTENDED_MAJOR_VERSION,
- ERL_DRV_EXTENDED_MINOR_VERSION,
- 0, /* ERL_DRV_FLAGs */
- NULL, /* handle2 */
- NULL, /* process_exit */
- stop_select
-};
-
-static void
-set_spawn_fd(int local_fd, int remote_fd, PROCESS remote_pid) {
- PROCESS vm_pid;
- FmHandle handle;
- char env_val[55];
- char env_name[10];
- EfsStatus efs_res;
-
- /* get pid of pipevm and handle of chosen fd */
- efs_res = efs_examine_fd(local_fd, FLIB_FD_VMPID, &vm_pid, 0);
- DEBUG_CHECK_RES(efs_res, EFS_SUCCESS);
-
- /* setup the file descriptor to buffer per line */
- efs_res = efs_config_fd(local_fd, FLIB_FD_BUFMODE, FM_BUFF_LINE,
- FLIB_FD_BUFSIZE, 80, 0);
- DEBUG_CHECK_RES(efs_res, EFS_SUCCESS);
-
- /* duplicate handle and set spawn pid owner */
- efs_res = efs_dup_to(local_fd, remote_pid, &handle);
- DEBUG_CHECK_RES(efs_res, EFS_SUCCESS);
-
- sprintf(env_name, "FD%d", remote_fd);
-
- /* Syntax of the environment variable:
- * "FD#" "<pid of pipevm>,<handle>,<buffer mode>,<buff size>,<omode>" */
- sprintf(env_val, "0x%lx,0x%lx,%lu,%lu,0x%x",
- vm_pid, handle,
- FM_BUFF_LINE, 80,
- O_APPEND);
-
- set_env(remote_pid, env_name, env_val);
-}
-
-static ErlDrvData
-set_driver_data(ErlDrvPort port_num,
- int ifd,
- int ofd,
- int packet_bytes,
- int read_write,
- int exit_status,
- PROCESS pid)
-{
- Port *prt;
- ErtsSysReportExit *report_exit;
-
- prt = erts_drvport2port(port_num);
- if (prt != ERTS_INVALID_ERL_DRV_PORT) {
- prt->os_pid = pid;
- }
-
- /* READ */
- if (read_write & DO_READ) {
- EfsStatus res = efs_examine_fd(ifd, FLIB_FD_HANDLE,
- &driver_data[ifd].handle, 0);
- if (res != EFS_SUCCESS)
- ramlog_printf("%s:%d: efs_examine_fd(%d) failed with %d\n",
- __FILE__,__LINE__,ifd,errno);
- driver_data[ifd].ifd = ifd;
- driver_data[ifd].packet_bytes = packet_bytes;
- driver_data[ifd].port_num = port_num;
- driver_data[ifd].pid = pid;
-
- /* async read struct */
- memset(&driver_data[ifd].aiocb, 0, sizeof(struct aiocb));
- driver_data[ifd].aiocb.aio_buf = driver_alloc(AIO_PIPE_SIZE);
- driver_data[ifd].aiocb.aio_fildes = ifd;
- driver_data[ifd].aiocb.aio_nbytes = (packet_bytes?packet_bytes:AIO_PIPE_SIZE);
- driver_data[ifd].alive = 1;
- driver_data[ifd].status = 0;
- driver_data[ifd].input_event =
- erl_drv_ose_event_alloc(FM_READ_PTR_REPLY,
- driver_data[ifd].handle, resolve_signal,
- &driver_data[ifd].ifd);
-
- /* READ & WRITE */
- if (read_write & DO_WRITE) {
- driver_data[ifd].ofd = ofd;
- efs_examine_fd(ofd, FLIB_FD_HANDLE, &driver_data[ofd].handle, 0);
-
- driver_data[ifd].output_event =
- erl_drv_ose_event_alloc(FM_WRITE_PTR_REPLY,
- driver_data[ofd].handle, resolve_signal,
- &driver_data[ofd].ofd);
- driver_data[ofd].pid = pid;
- if (ifd != ofd) {
- driver_data[ofd] = driver_data[ifd];
- driver_data[ofd].aiocb.aio_buf = NULL;
- }
- }
- else { /* READ ONLY */
- driver_data[ifd].ofd = -1;
- }
-
- /* enable input event */
- (void) driver_select(port_num, driver_data[ifd].input_event,
- (ERL_DRV_READ | ERL_DRV_USE), 1);
-
- if (aio_read(&driver_data[ifd].aiocb))
- ramlog_printf("%s:%d: aio_read(%d) failed with %d\n",
- __FILE__,__LINE__,ifd,errno);
- }
- else { /* WRITE ONLY */
- efs_examine_fd(ofd, FLIB_FD_HANDLE, &driver_data[ofd].handle, 0);
- driver_data[ofd].packet_bytes = packet_bytes;
- driver_data[ofd].port_num = port_num;
- driver_data[ofd].ofd = ofd;
- driver_data[ofd].pid = pid;
- driver_data[ofd].alive = 1;
- driver_data[ofd].status = 0;
- driver_data[ofd].output_event =
- erl_drv_ose_event_alloc(FM_WRITE_PTR_REPLY, driver_data[ofd].handle,
- resolve_signal, &driver_data[ofd].ofd);
- driver_data[ofd].input_event = driver_data[ofd].output_event;
- }
-
- /* this is used for spawned load modules, and is needed
- * to properly uninstall them */
- if (exit_status) {
- struct PmProgramInfo *info;
- int install_handle_size;
- union SIGNAL *sig;
- PmStatus pm_status;
- report_exit = erts_alloc(ERTS_ALC_T_PRT_REP_EXIT,
- sizeof(ErtsSysReportExit));
- report_exit->next = report_exit_list;
- report_exit->port = erts_drvport2id(port_num);
- report_exit->pid = pid;
- report_exit->ifd = (read_write & DO_READ) ? ifd : -1;
- report_exit->ofd = (read_write & DO_WRITE) ? ofd : -1;
- report_exit_list = report_exit;
- report_exit->attach_event =
- erl_drv_ose_event_alloc(ERTS_SIGNAL_OSE_DRV_ATTACH, pid,
- resolve_signal, &driver_data[ifd].ifd);
-
- /* setup ifd and ofd report exit */
- driver_data[ifd].report_exit = report_exit;
- driver_data[ofd].report_exit = report_exit;
-
- pm_status = ose_pm_program_info(pid, &info);
- DEBUG_CHECK_RES(pm_status, PM_SUCCESS);
-
- install_handle_size = strlen(info->install_handle)+1;
- driver_data[ifd].install_handle = driver_alloc(install_handle_size);
- strcpy(driver_data[ifd].install_handle,
- info->install_handle);
-
- free_buf((union SIGNAL **)&info);
-
- sig = alloc(sizeof(struct async), ERTS_SIGNAL_OSE_DRV_ATTACH);
- sig->async.target = pid;
- send(&sig, get_signal_proxy_pid());
-
- /* this event will trigger when we receive an attach signal
- * from the recently dead load module */
- (void)driver_select(port_num,report_exit->attach_event, DO_READ, 1);
- }
- else {
- report_exit = NULL;
- }
-
- /* the return value is the pointer to the driver_data struct we created
- * in this function, it will be used in the drivers input
- * and output functions */
- return (ErlDrvData)((!(read_write & DO_READ) && read_write & DO_WRITE)
- ? &driver_data[ofd]
- : &driver_data[ifd]);
-}
-
-static int spawn_init()
-{
- int i;
-
- driver_data = (struct driver_data *)
- erts_alloc(ERTS_ALC_T_DRV_TAB, max_files * sizeof(struct driver_data));
- erts_smp_atomic_add_nob(&sys_misc_mem_sz,
- max_files * sizeof(struct driver_data));
-
- for (i = 0; i < max_files; i++)
- driver_data[i].pid = -1;
-
- return 1;
-}
-
-static void
-init_fd_data(int fd, ErlDrvPort port_num)
-{
- fd_data[fd].buf = NULL;
- fd_data[fd].cpos = NULL;
- fd_data[fd].remain = 0;
- fd_data[fd].sz = 0;
- fd_data[fd].psz = 0;
-}
-
-/* FIXME write a decent text on pipes on ose */
-static ErlDrvData
-spawn_start(ErlDrvPort port_num, char* name, SysDriverOpts* opts)
-{
- int ifd[2];
- int ofd[2];
- static uint32_t ticker = 1;
- PmStatus pm_status;
- OSDOMAIN domain = PM_NEW_DOMAIN;
- PROCESS progpid, mainbid, mainpid;
- char *handle = NULL;
- struct PmProgramInfo *info;
- char *args = NULL;
- char *tmp_handle;
- ErlDrvData res = (ErlDrvData)-1;
- int handle_size;
- char *ptr;
-
-
- args = driver_alloc(strlen(name)+1);
- strcpy(args, name);
- /* We need to handle name in three parts
- * - install handle (must be unique)
- * - install binary (needed for ose_pm_install_load_module())
- * - full path (as argument to the spawned applications env.var
- */
-
- /* full path including arguments */
- args = driver_alloc(strlen(name)+1);
- strcpy(args, name);
-
- /* handle path */
- tmp_handle = strrchr(name, '/');
- if (tmp_handle == NULL) {
- tmp_handle = name;
- }
- else {
- tmp_handle++;
- }
-
- /* handle args */
- ptr = strchr(tmp_handle, ' ');
- if (ptr != NULL) {
- *ptr = '\0';
- handle_size = ptr - tmp_handle;
- }
- else {
- handle_size = strlen(name)+1;
- }
-
- /* make room for ticker */
- handle_size += (ticker<10)?3:((ticker<100)?4:5);
- handle = driver_alloc(handle_size);
-
- do {
- snprintf(handle, handle_size, "%s_%d", tmp_handle, ticker);
- pm_status = ose_pm_install_load_module(0, "ELF", name, handle,
- 0, 0, NULL);
- ticker++;
- } while (pm_status == PM_EINSTALL_HANDLE_ALREADY_INSTALLED);
-
- if (pm_status != PM_SUCCESS) {
- errno = ENOSYS; /* FIXME add comment */
- return ERL_DRV_ERROR_ERRNO;
- }
-
- /* Create Program */
- pm_status = ose_pm_create_program(&domain, handle, 0, 0,
- NULL, &progpid, &mainbid);
- DEBUG_CHECK_RES(pm_status, PM_SUCCESS);
-
- /* Get the mainpid from the newly created program */
- pm_status = ose_pm_program_info(progpid, &info);
- DEBUG_CHECK_RES(pm_status, PM_SUCCESS);
-
- mainpid = info->main_process;
- free_buf ((union SIGNAL **)&info);
-
- /* pipevm needs to be started
- * pipe will return 0 if success, -1 if not,
- * errno will be set */
- if (pipe(ifd) != 0 || pipe(ofd) != 0) {
- DEBUG_CHECK_RES(0, -1);
- ASSERT(0);
- }
-
- /* setup driver data */
- res = set_driver_data(port_num, ofd[0], ifd[1], opts->packet_bytes,
- opts->read_write, 1 /* opts->exit_status */, progpid);
-
- /* init the fd_data array for read/write */
- init_fd_data(ofd[0], port_num);
- init_fd_data(ifd[1], port_num);
-
- /* setup additional configurations
- * for the spawned applications environment */
- if (args != NULL) {
- set_env(progpid, "ARGV", args);
- }
- set_env(mainbid, "EFS_RESOLVE_TMO", 0);
- set_spawn_fd(ifd[0], 0, mainpid);
- set_spawn_fd(ofd[1], 1, mainpid);
- set_spawn_fd(ofd[1], 2, mainpid);
-
- /* start the spawned program */
- pm_status = ose_pm_start_program(mainbid);
- DEBUG_CHECK_RES(pm_status, PM_SUCCESS);
-
- /* close unused fd's */
- close(ifd[0]);
- close(ofd[1]);
-
- if (handle) {
- driver_free(handle);
- }
-
- return (ErlDrvData)res;
-}
-
-#define FD_DEF_HEIGHT 24
-#define FD_DEF_WIDTH 80
-/* Control op */
-#define FD_CTRL_OP_GET_WINSIZE 100
-
-static int fd_get_window_size(int fd, Uint32 *width, Uint32 *height)
-{
-#ifdef TIOCGWINSZ
- struct winsize ws;
- if (ioctl(fd,TIOCGWINSZ,&ws) == 0) {
- *width = (Uint32) ws.ws_col;
- *height = (Uint32) ws.ws_row;
- return 0;
- }
-#endif
- return -1;
-}
-
-static ErlDrvSSizeT fd_control(ErlDrvData drv_data,
- unsigned int command,
- char *buf, ErlDrvSizeT len,
- char **rbuf, ErlDrvSizeT rlen)
-{
- struct driver_data *data = (struct driver_data *)drv_data;
- char resbuff[2*sizeof(Uint32)];
- switch (command) {
- case FD_CTRL_OP_GET_WINSIZE:
- {
- Uint32 w,h;
- if (fd_get_window_size(data->ifd,&w,&h))
- return 0;
- memcpy(resbuff,&w,sizeof(Uint32));
- memcpy(resbuff+sizeof(Uint32),&h,sizeof(Uint32));
- }
- break;
- default:
- return 0;
- }
- if (rlen < 2*sizeof(Uint32)) {
- *rbuf = driver_alloc(2*sizeof(Uint32));
- }
- memcpy(*rbuf,resbuff,2*sizeof(Uint32));
- return 2*sizeof(Uint32);
-}
-
-static ErlDrvData fd_start(ErlDrvPort port_num, char* name,
- SysDriverOpts* opts)
-{
- ErlDrvData res;
-
- CHLD_STAT_LOCK;
- if (opts->read_write & DO_READ) {
- init_fd_data(opts->ifd, port_num);
- }
- if (opts->read_write & DO_WRITE) {
- init_fd_data(opts->ofd, port_num);
- }
- res = set_driver_data(port_num, opts->ifd, opts->ofd,
- opts->packet_bytes,
- opts->read_write, 0, -1);
- CHLD_STAT_UNLOCK;
- return res;
-}
-
-static void clear_fd_data(int fd)
-{
- if (fd_data[fd].sz > 0) {
- erts_free(ERTS_ALC_T_FD_ENTRY_BUF, (void *) fd_data[fd].buf);
- ASSERT(erts_smp_atomic_read_nob(&sys_misc_mem_sz) >= fd_data[fd].sz);
- erts_smp_atomic_add_nob(&sys_misc_mem_sz, -1*fd_data[fd].sz);
- }
- fd_data[fd].buf = NULL;
- fd_data[fd].sz = 0;
- fd_data[fd].remain = 0;
- fd_data[fd].cpos = NULL;
- fd_data[fd].psz = 0;
-}
-
-static void nbio_stop_fd(ErlDrvPort prt, ErlDrvEvent ev)
-{
- int *fd;
- driver_select(prt,ev,DO_READ|DO_WRITE,0);
- erl_drv_ose_event_fetch(ev, NULL, NULL, (void **)&fd);
- clear_fd_data(*fd);
- SET_BLOCKING(*fd);
-}
-
-static void fd_stop(ErlDrvData drv_data) /* Does not close the fds */
-{
- struct driver_data *data = (struct driver_data *)drv_data;
-
- if (data->ofd != -1) {
- if (data->ifd != data->ofd) { /* read and write */
- nbio_stop_fd(data->port_num, data->input_event);
- nbio_stop_fd(data->port_num, data->output_event);
- }
- else { /* write only */
- nbio_stop_fd(data->port_num, data->output_event);
- }
- }
- else { /* read only */
- nbio_stop_fd(data->port_num, data->input_event);
- }
-}
-
-
-static void erl_stop(ErlDrvData drv_data)
-{
- struct driver_data *data = (struct driver_data *)drv_data;
-
- CHLD_STAT_LOCK;
- data->pid = -1;
- CHLD_STAT_UNLOCK;
-
- if (data->ofd != -1) {
- if (data->ifd != data->ofd) { /* read and write */
- nbio_stop_fd(data->port_num, data->input_event);
- nbio_stop_fd(data->port_num, data->output_event);
- }
- else { /* write only */
- nbio_stop_fd(data->port_num, data->output_event);
- }
- }
- else { /* read only */
- nbio_stop_fd(data->port_num, data->input_event);
- }
- close(data->ifd);
- close(data->ofd);
-}
-
-/* The parameter e is a pointer to the driver_data structure
- * related to the fd to be used as output */
-static void output(ErlDrvData drv_data, char* buf, ErlDrvSizeT len)
-{
- ErlDrvSizeT sz;
- char lb[4];
- char* lbp;
- struct driver_data *data = (struct driver_data *)drv_data;
-
- if (((data->packet_bytes == 2) &&
- (len > 0xffff)) || (data->packet_bytes == 1 && len > 0xff)) {
- driver_failure_posix(data->port_num, EINVAL);
- return; /* -1; */
- }
- put_int32(len, lb);
- lbp = lb + (4-(data->packet_bytes));
-
- if ((sz = driver_sizeq(data->port_num)) > 0) {
- if (data->packet_bytes != 0) {
- driver_enq(data->port_num, lbp, data->packet_bytes);
- }
- driver_enq(data->port_num, buf, len);
-
- if (sz + len + data->packet_bytes >= (1 << 13))
- set_busy_port(data->port_num, 1);
- }
- else {
- char *pbbuf;
- if (data->packet_bytes != 0) {
- pbbuf = malloc(len + data->packet_bytes);
- int i;
- for (i = 0; i < data->packet_bytes; i++) {
- *pbbuf++ = *lbp++;
- }
- strncpy(pbbuf, buf, len);
- pbbuf -= data->packet_bytes;
- }
- driver_select(data->port_num, data->output_event,
- ERL_DRV_WRITE|ERL_DRV_USE, 1);
- WRITE_AIO(data->ofd,
- (data->packet_bytes ? len+data->packet_bytes : len),
- (data->packet_bytes ? pbbuf : buf));
- if (data->packet_bytes != 0) free(pbbuf);
- }
- return; /* 0; */
-}
-
-/* This function is being run when we in recieve
- * either a read of 0 bytes, or the attach signal from a dying
- * spawned load module */
-static int port_inp_failure(ErlDrvPort port_num, ErlDrvEvent ready_fd, int res)
- /* Result: 0 (eof) or -1 (error) */
-{
- int *fd;
- SIGSELECT sig_no;
- ASSERT(res <= 0);
-
- erl_drv_ose_event_fetch(ready_fd,&sig_no, NULL, (void **)&fd);
- /* As we need to handle two signals, we do this in two steps */
- if (driver_data[*fd].alive) {
- report_exit_status(driver_data[*fd].report_exit, 0); /* status? */
- }
- else {
- driver_select(port_num,ready_fd,DO_READ|DO_WRITE,0);
- clear_fd_data(*fd);
- driver_report_exit(driver_data[*fd].port_num, driver_data[*fd].status);
- /* As we do not really know if the spawn has crashed or exited nicely
- * we do not check the result status of the following call.. FIXME
- * can we handle this in a better way? */
- ose_pm_uninstall_load_module(driver_data[*fd].install_handle);
- driver_free(driver_data[*fd].install_handle);
- driver_free((void *)driver_data[*fd].aiocb.aio_buf);
-
- close(*fd);
- }
-
- return 0;
-}
-
-/* The parameter e is a pointer to the driver_data structure
- * related to the fd to be used as output.
- * ready_fd is the event that triggered this call to ready_input */
-static void ready_input(ErlDrvData drv_data, ErlDrvEvent ready_fd)
-{
- int res;
- Uint h;
- char *buf;
- union SIGNAL *sig;
- struct driver_data *data = (struct driver_data *)drv_data;
-
- sig = erl_drv_ose_get_signal(ready_fd);
- ASSERT(sig);
-
-
- while (sig) {
- /* If we've recieved an attach signal, we need to handle
- * it in port_inp_failure */
- if (sig->sig_no == ERTS_SIGNAL_OSE_DRV_ATTACH) {
- port_inp_failure(data->port_num, ready_fd, 0);
- }
- else {
- res = sig->fm_read_reply.actual;
- if (res == 0) {
- port_inp_failure(data->port_num, ready_fd, res);
- break;
- }
-
- if (data->packet_bytes == 0) {
- if (res < 0) {
- if ((errno != EINTR) && (errno != ERRNO_BLOCK)) {
- port_inp_failure(data->port_num, ready_fd, res);
- }
- }
- else if (res == 0) {
- /* read of 0 bytes, eof, otherside of pipe is assumed dead */
- port_inp_failure(data->port_num, ready_fd, res);
- break;
- }
- else {
- buf = driver_alloc(res);
- memcpy(buf, (void *)data->aiocb.aio_buf, res);
- driver_select(data->port_num, data->output_event,
- ERL_DRV_WRITE|ERL_DRV_USE, 1);
- driver_output(data->port_num, (char*) buf, res);
- driver_free(buf);
- }
- /* clear the previous read */
- memset(data->aiocb.aio_buf, 0, res);
-
- /* issue a new read */
- DISPATCH_AIO(sig);
- aio_read(&data->aiocb);
- }
- else if (data->packet_bytes && fd_data[data->ifd].remain > 0) {
- /* we've read a partial package, or a header */
-
- if (res == fd_data[data->ifd].remain) { /* we are done! */
- char *buf = data->aiocb.aio_buf;
- int i;
-
- /* do we have anything buffered? */
- if (fd_data[data->ifd].buf != NULL) {
- memcpy(fd_data[data->ifd].buf + fd_data[data->ifd].sz,
- buf, res);
- buf = fd_data[data->ifd].buf;
- }
-
- fd_data[data->ifd].sz += res;
- driver_output(data->port_num, buf, (fd_data[data->ifd].sz>0?fd_data[data->ifd].sz:res));
- clear_fd_data(data->ifd);
-
- /* clear the previous read */
- memset(data->aiocb.aio_buf, 0, res);
-
- /* issue a new read */
- DISPATCH_AIO(sig);
- data->aiocb.aio_nbytes = data->packet_bytes;
-
- if (data->aiocb.aio_buf == NULL) {
- port_inp_failure(data->port_num, ready_fd, -1);
- }
- aio_read(&data->aiocb);
- }
- else if(res < fd_data[data->ifd].remain) { /* received part of a package */
- if (fd_data[data->ifd].sz == 0) {
-
- fd_data[data->ifd].sz += res;
- memcpy(fd_data[data->ifd].buf, data->aiocb.aio_buf, res);
- fd_data[data->ifd].remain -= res;
- }
- else {
- memcpy(fd_data[data->ifd].buf + fd_data[data->ifd].sz,
- data->aiocb.aio_buf, res);
- fd_data[data->ifd].sz += res;
- fd_data[data->ifd].remain -= res;
- }
- /* clear the previous read */
- memset(data->aiocb.aio_buf, 0, res);
-
- /* issue a new read */
- DISPATCH_AIO(sig);
- data->aiocb.aio_nbytes = fd_data[data->ifd].remain;
-
- if (data->aiocb.aio_buf == NULL) {
- port_inp_failure(data->port_num, ready_fd, -1);
- }
- aio_read(&data->aiocb);
- }
- }
- else if (data->packet_bytes && fd_data[data->ifd].remain == 0) { /* we've recieved a header */
-
- /* analyze the header FIXME */
- switch (data->packet_bytes) {
- case 1: h = get_int8(data->aiocb.aio_buf); break;
- case 2: h = get_int16(data->aiocb.aio_buf); break;
- case 4: h = get_int32(data->aiocb.aio_buf); break;
- }
-
- fd_data[data->ifd].buf = erts_alloc_fnf(ERTS_ALC_T_FD_ENTRY_BUF, h + data->packet_bytes);
- fd_data[data->ifd].remain = ((h + data->packet_bytes) - res);
-
- /* clear the previous read */
- memset(data->aiocb.aio_buf, 0, data->packet_bytes);
-
- /* issue a new read */
- DISPATCH_AIO(sig);
- data->aiocb.aio_nbytes = h;
-
- if (data->aiocb.aio_buf == NULL) {
- port_inp_failure(data->port_num, ready_fd, -1);
- }
- aio_read(&data->aiocb);
- }
- }
- sig = erl_drv_ose_get_signal(ready_fd);
- }
-}
-
-
-/* The parameter e is a pointer to the driver_data structure
- * related to the fd to be used as output.
- * ready_fd is the event that triggered this call to ready_input */
-static void ready_output(ErlDrvData drv_data, ErlDrvEvent ready_fd)
-{
- SysIOVec *iov;
- int vlen;
- int res;
- union SIGNAL *sig;
- struct driver_data *data = (struct driver_data *)drv_data;
-
- sig = erl_drv_ose_get_signal(ready_fd);
- ASSERT(sig);
-
- while (sig != NULL) {
- if (sig->fm_write_reply.actual <= 0) {
- int status;
-
- status = efs_status_to_errno(sig->fm_write_reply.status);
- driver_select(data->port_num, ready_fd, ERL_DRV_WRITE, 0);
- DISPATCH_AIO(sig);
- FREE_AIO(sig->fm_write_reply.buffer);
-
- driver_failure_posix(data->port_num, status);
- }
- else { /* written bytes > 0 */
- iov = driver_peekq(data->port_num, &vlen);
- if (vlen > 0) {
- DISPATCH_AIO(sig);
- FREE_AIO(sig->fm_write_reply.buffer);
- res = driver_deq(data->port_num, iov[0].iov_len);
- if (res > 0) {
- iov = driver_peekq(data->port_num, &vlen);
- WRITE_AIO(data->ofd, iov[0].iov_len, iov[0].iov_base);
- }
- }
- else if (vlen == 0) {
- DISPATCH_AIO(sig);
- FREE_AIO(sig->fm_write_reply.buffer);
- }
-
- }
- sig = erl_drv_ose_get_signal(ready_fd);
- }
-}
-
-static void stop_select(ErlDrvEvent ready_fd, void* _)
-{
- int *fd;
- erl_drv_ose_event_fetch(ready_fd, NULL, NULL, (void **)&fd);
- erl_drv_ose_event_free(ready_fd);
- close(*fd);
-}
-
-
-void erts_do_break_handling(void)
-{
- struct termios temp_mode;
- int saved = 0;
-
- /*
- * Most functions that do_break() calls are intentionally not thread safe;
- * therefore, make sure that all threads but this one are blocked before
- * proceeding!
- */
- erts_smp_thr_progress_block();
-
- /* during break we revert to initial settings */
- /* this is done differently for oldshell */
- if (using_oldshell && !replace_intr) {
- SET_BLOCKING(1);
- }
- else if (isatty(0)) {
- tcgetattr(0,&temp_mode);
- tcsetattr(0,TCSANOW,&initial_tty_mode);
- saved = 1;
- }
-
- /* call the break handling function, reset the flag */
- do_break();
-
- fflush(stdout);
-
- /* after break we go back to saved settings */
- if (using_oldshell && !replace_intr) {
- SET_NONBLOCKING(1);
- }
- else if (saved) {
- tcsetattr(0,TCSANOW,&temp_mode);
- }
-
- erts_smp_thr_progress_unblock();
-}
-
-static pid_t
-getpid(void)
-{
- return get_bid(current_process());
-}
-
-int getpagesize(void)
-{
- return 1024;
-}
-
-
-/* Fills in the systems representation of the jam/beam process identifier.
-** The Pid is put in STRING representation in the supplied buffer,
-** no interpretatione of this should be done by the rest of the
-** emulator. The buffer should be at least 21 bytes long.
-*/
-void sys_get_pid(char *buffer, size_t buffer_size){
- pid_t p = getpid();
- /* Assume the pid is scalar and can rest in an unsigned long... */
- erts_snprintf(buffer, buffer_size, "%lu",(unsigned long) p);
-}
-
-int
-erts_sys_putenv_raw(char *key, char *value) {
- return erts_sys_putenv(key, value);
-}
-int
-erts_sys_putenv(char *key, char *value)
-{
- int res;
-
- erts_smp_rwmtx_rwlock(&environ_rwmtx);
- res = set_env(get_bid(current_process()), key,
- value);
- erts_smp_rwmtx_rwunlock(&environ_rwmtx);
- return res;
-}
-
-
-int
-erts_sys_unsetenv(char *key)
-{
- int res;
-
- erts_smp_rwmtx_rwlock(&environ_rwmtx);
- res = set_env(get_bid(current_process()),key,NULL);
- erts_smp_rwmtx_rwunlock(&environ_rwmtx);
-
- return res;
-}
-
-int
-erts_sys_getenv__(char *key, char *value, size_t *size)
-{
- int res;
- char *orig_value = get_env(get_bid(current_process()), key);
- if (!orig_value)
- res = -1;
- else {
- size_t len = sys_strlen(orig_value);
- if (len >= *size) {
- *size = len + 1;
- res = 1;
- }
- else {
- *size = len;
- sys_memcpy((void *) value, (void *) orig_value, len+1);
- res = 0;
- }
- free_buf((union SIGNAL **)&orig_value);
- }
- return res;
-}
-
-int
-erts_sys_getenv_raw(char *key, char *value, size_t *size) {
- return erts_sys_getenv(key, value, size);
-}
-
-/*
- * erts_sys_getenv
- * returns:
- * -1, if environment key is not set with a value
- * 0, if environment key is set and value fits into buffer res
- * 1, if environment key is set but does not fit into buffer res
- * res is set with the needed buffer res value
- */
-
-int
-erts_sys_getenv(char *key, char *value, size_t *size)
-{
- int res;
- erts_smp_rwmtx_rlock(&environ_rwmtx);
- res = erts_sys_getenv__(key, value, size);
- erts_smp_rwmtx_runlock(&environ_rwmtx);
- return res;
-}
-
-void
-sys_init_io(void)
-{
- fd_data = (struct fd_data *)
- erts_alloc(ERTS_ALC_T_FD_TAB, max_files * sizeof(struct fd_data));
- erts_smp_atomic_add_nob(&sys_misc_mem_sz,
- max_files * sizeof(struct fd_data));
-}
-
-extern const char pre_loaded_code[];
-extern Preload pre_loaded[];
-
-void erts_sys_alloc_init(void)
-{
-}
-
-void *erts_sys_alloc(ErtsAlcType_t t, void *x, Uint sz)
-{
- void *res = malloc((size_t) sz);
-#if HAVE_ERTS_MSEG
- if (!res) {
- erts_mseg_clear_cache();
- return malloc((size_t) sz);
- }
-#endif
- return res;
-}
-
-void *erts_sys_realloc(ErtsAlcType_t t, void *x, void *p, Uint sz)
-{
- void *res = realloc(p, (size_t) sz);
-#if HAVE_ERTS_MSEG
- if (!res) {
- erts_mseg_clear_cache();
- return realloc(p, (size_t) sz);
- }
-#endif
- return res;
-}
-
-void erts_sys_free(ErtsAlcType_t t, void *x, void *p)
-{
- free(p);
-}
-
-/* Return a pointer to a vector of names of preloaded modules */
-
-Preload*
-sys_preloaded(void)
-{
- return pre_loaded;
-}
-
-/* Return a pointer to preloaded code for module "module" */
-unsigned char*
-sys_preload_begin(Preload* p)
-{
- return p->code;
-}
-
-/* Clean up if allocated */
-void sys_preload_end(Preload* p)
-{
- /* Nothing */
-}
-
-/* Read a key from console (?) */
-
-int sys_get_key(fd)
-int fd;
-{
- int c;
- unsigned char rbuf[64];
-
- fflush(stdout); /* Flush query ??? */
-
- if ((c = read(fd,rbuf,64)) <= 0) {
- return c;
- }
-
- return rbuf[0];
-}
-
-
-#ifdef DEBUG
-
-extern int erts_initialized;
-void
-erl_assert_error(const char* expr, const char* func,
- const char* file, int line)
-{
- fflush(stdout);
- fprintf(stderr, "%s:%d:%s() Assertion failed: %s\n",
- file, line, func, expr);
- fflush(stderr);
- ramlog_printf("%s:%d:%s() Assertion failed: %s\n",
- file, line, func, expr);
-
- abort();
-}
-
-void
-erl_debug(char* fmt, ...)
-{
- char sbuf[1024]; /* Temporary buffer. */
- va_list va;
-
- if (debug_log) {
- va_start(va, fmt);
- vsprintf(sbuf, fmt, va);
- va_end(va);
- fprintf(stderr, "%s", sbuf);
- }
-}
-
-#endif /* DEBUG */
-
-static ERTS_INLINE void
-report_exit_status(ErtsSysReportExit *rep, int status)
-{
- if (rep->ifd >= 0) {
- driver_data[rep->ifd].alive = 0;
- driver_data[rep->ifd].status = status;
- }
- if (rep->ofd >= 0) {
- driver_data[rep->ofd].alive = 0;
- driver_data[rep->ofd].status = status;
- }
-
- erts_free(ERTS_ALC_T_PRT_REP_EXIT, rep);
-}
-
-#define ERTS_REPORT_EXIT_STATUS report_exit_status
-
-/*
- * Called from schedule() when it runs out of runnable processes,
- * or when Erlang code has performed INPUT_REDUCTIONS reduction
- * steps. runnable == 0 iff there are no runnable Erlang processes.
- */
-void
-erl_sys_schedule(int runnable)
-{
- ASSERT(get_fsem(current_process()) == 0);
-#ifdef ERTS_SMP
- ASSERT(erts_get_scheduler_data()->no == 1);
- ERTS_CHK_IO(!runnable);
-#else
- ERTS_CHK_IO( 1 );
-#endif
- ASSERT(get_fsem(current_process()) == 0);
- ERTS_SMP_LC_ASSERT(!erts_thr_progress_is_blocking());
-}
-
-
-#ifdef ERTS_SMP
-
-void
-erts_sys_main_thread(void)
-{
- erts_thread_disable_fpe();
-
- /* Become signal receiver thread... */
-#ifdef ERTS_ENABLE_LOCK_CHECK
- erts_lc_set_thread_name("signal_receiver");
-#endif
-
- while (1) {
- static const SIGSELECT sigsel[] = {0};
- union SIGNAL *msg = receive(sigsel);
-
- fprintf(stderr,"Main thread got message %d from 0x%x!!\r\n",
- msg->sig_no, sender(&msg));
- free_buf(&msg);
- }
-}
-
-#endif /* ERTS_SMP */
-
-void
-erl_sys_args(int* argc, char** argv)
-{
- int i, j;
-
- erts_smp_rwmtx_init(&environ_rwmtx, "environ");
-
- init_check_io();
-
- /* Handled arguments have been marked with NULL. Slide arguments
- not handled towards the beginning of argv. */
- for (i = 0, j = 0; i < *argc; i++) {
- if (argv[i])
- argv[j++] = argv[i];
- }
- *argc = j;
-
-}