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Diffstat (limited to 'erts/emulator/beam/erl_bif_port.c')
-rw-r--r--erts/emulator/beam/erl_bif_port.c99
1 files changed, 72 insertions, 27 deletions
diff --git a/erts/emulator/beam/erl_bif_port.c b/erts/emulator/beam/erl_bif_port.c
index 27c24197ea..90e78a9b0b 100644
--- a/erts/emulator/beam/erl_bif_port.c
+++ b/erts/emulator/beam/erl_bif_port.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 2001-2013. All Rights Reserved.
+ * Copyright Ericsson AB 2001-2016. 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.
@@ -41,6 +41,7 @@
#include "external.h"
#include "packet_parser.h"
#include "erl_bits.h"
+#include "erl_bif_unique.h"
#include "dtrace-wrapper.h"
static Port *open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump);
@@ -50,10 +51,10 @@ static void free_args(char **);
char *erts_default_arg0 = "default";
-BIF_RETTYPE open_port_2(BIF_ALIST_2)
+BIF_RETTYPE erts_internal_open_port_2(BIF_ALIST_2)
{
Port *port;
- Eterm port_id;
+ Eterm res;
char *str;
int err_type, err_num;
@@ -61,27 +62,63 @@ BIF_RETTYPE open_port_2(BIF_ALIST_2)
if (!port) {
if (err_type == -3) {
ASSERT(err_num == BADARG || err_num == SYSTEM_LIMIT);
- BIF_ERROR(BIF_P, err_num);
+ if (err_num == BADARG)
+ res = am_badarg;
+ else if (err_num == SYSTEM_LIMIT)
+ res = am_system_limit;
+ else
+ /* this is only here to silence gcc, it should not happen */
+ BIF_ERROR(BIF_P, EXC_INTERNAL_ERROR);
} else if (err_type == -2) {
str = erl_errno_id(err_num);
+ res = erts_atom_put((byte *) str, strlen(str), ERTS_ATOM_ENC_LATIN1, 1);
} else {
- str = "einval";
+ res = am_einval;
}
- BIF_P->fvalue = erts_atom_put((byte *) str, strlen(str), ERTS_ATOM_ENC_LATIN1, 1);
- BIF_ERROR(BIF_P, EXC_ERROR);
+ BIF_RET(res);
}
- erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK);
+ if (port->drv_ptr->flags & ERL_DRV_FLAG_USE_INIT_ACK) {
+
+ /* Copied from erl_port_task.c */
+ port->async_open_port = erts_alloc(ERTS_ALC_T_PRTSD,
+ sizeof(*port->async_open_port));
+ erts_make_ref_in_array(port->async_open_port->ref);
+ port->async_open_port->to = BIF_P->common.id;
+
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCKS_MSG_RECEIVE | ERTS_PROC_LOCK_LINK);
+ if (ERTS_PROC_PENDING_EXIT(BIF_P)) {
+ /* need to exit caller instead */
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCKS_MSG_RECEIVE | ERTS_PROC_LOCK_LINK);
+ KILL_CATCHES(BIF_P);
+ BIF_P->freason = EXC_EXIT;
+ erts_port_release(port);
+ BIF_RET(am_badarg);
+ }
+
+ ERTS_SMP_MSGQ_MV_INQ2PRIVQ(BIF_P);
+ BIF_P->msg.save = BIF_P->msg.last;
+
+ erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCKS_MSG_RECEIVE);
+
+ res = erts_proc_store_ref(BIF_P, port->async_open_port->ref);
+ } else {
+ res = port->common.id;
+ erts_smp_proc_lock(BIF_P, ERTS_PROC_LOCK_LINK);
+ }
- port_id = port->common.id;
erts_add_link(&ERTS_P_LINKS(port), LINK_PID, BIF_P->common.id);
- erts_add_link(&ERTS_P_LINKS(BIF_P), LINK_PID, port_id);
+ erts_add_link(&ERTS_P_LINKS(BIF_P), LINK_PID, port->common.id);
+
+ if (IS_TRACED_FL(BIF_P, F_TRACE_PROCS))
+ trace_proc(BIF_P, ERTS_PROC_LOCK_MAIN|ERTS_PROC_LOCK_LINK, BIF_P,
+ am_link, port->common.id);
erts_smp_proc_unlock(BIF_P, ERTS_PROC_LOCK_LINK);
erts_port_release(port);
- BIF_RET(port_id);
+ BIF_RET(res);
}
static ERTS_INLINE Port *
@@ -102,6 +139,12 @@ sig_lookup_port(Process *c_p, Eterm id_or_name)
return lookup_port(c_p, id_or_name, ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP);
}
+/* Non-inline copy of sig_lookup_port to be exported */
+Port *erts_sig_lookup_port(Process *c_p, Eterm id_or_name)
+{
+ return lookup_port(c_p, id_or_name, ERTS_PORT_SFLGS_INVALID_DRIVER_LOOKUP);
+}
+
static ERTS_INLINE Port *
data_lookup_port(Process *c_p, Eterm id_or_name)
{
@@ -307,8 +350,7 @@ BIF_RETTYPE erts_internal_port_close_1(BIF_ALIST_1)
if (!prt)
BIF_RET(am_badarg);
-
- switch (erts_port_exit(BIF_P, 0, prt, prt->common.id, am_normal, &ref)) {
+ switch (erts_port_exit(BIF_P, 0, prt, BIF_P->common.id, am_normal, &ref)) {
case ERTS_PORT_OP_CALLER_EXIT:
case ERTS_PORT_OP_BADARG:
case ERTS_PORT_OP_DROPPED:
@@ -341,7 +383,7 @@ BIF_RETTYPE erts_internal_port_connect_2(BIF_ALIST_2)
ref = NIL;
#endif
- switch (erts_port_connect(BIF_P, 0, prt, prt->common.id, BIF_ARG_2, &ref)) {
+ switch (erts_port_connect(BIF_P, 0, prt, BIF_P->common.id, BIF_ARG_2, &ref)) {
case ERTS_PORT_OP_CALLER_EXIT:
case ERTS_PORT_OP_BADARG:
case ERTS_PORT_OP_DROPPED:
@@ -617,7 +659,7 @@ BIF_RETTYPE port_get_data_1(BIF_ALIST_1)
static Port *
open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump)
{
- int i;
+ Sint i;
Eterm option;
Uint arity;
Eterm* tp;
@@ -879,7 +921,7 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump)
}
if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_out);
+ trace_sched(p, ERTS_PROC_LOCK_MAIN, am_out);
}
@@ -896,21 +938,22 @@ open_port(Process* p, Eterm name, Eterm settings, int *err_typep, int *err_nump)
DTRACE3(port_open, process_str, name_buf, port_str);
}
#endif
+
+ if (port && IS_TRACED_FL(port, F_TRACE_PORTS))
+ trace_port(port, am_getting_linked, p->common.id);
+
erts_smp_proc_lock(p, ERTS_PROC_LOCK_MAIN);
+ if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
+ trace_sched(p, ERTS_PROC_LOCK_MAIN, am_in);
+ }
+
if (!port) {
DEBUGF(("open_driver returned (%d:%d)\n",
err_typep ? *err_typep : 4711,
err_nump ? *err_nump : 4711));
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_in);
- }
goto do_return;
}
-
- if (IS_TRACED_FL(p, F_TRACE_SCHED_PROCS)) {
- trace_virtual_sched(p, am_in);
- }
if (linebuf && port->linebuf == NULL){
port->linebuf = allocate_linebuf(linebuf);
@@ -945,14 +988,16 @@ static char **convert_args(Eterm l)
{
char **pp;
char *b;
- int n;
- int i = 0;
+ Sint n;
+ Sint i = 0;
Eterm str;
if (is_not_list(l) && is_not_nil(l)) {
return NULL;
}
n = erts_list_length(l);
+ if (n < 0)
+ return NULL;
/* We require at least one element in argv[0] + NULL at end */
pp = erts_alloc(ERTS_ALC_T_TMP, (n + 2) * sizeof(char **));
pp[i++] = erts_default_arg0;
@@ -992,7 +1037,7 @@ static byte* convert_environment(Process* p, Eterm env)
Eterm* temp_heap;
Eterm* hp;
Uint heap_size;
- int n;
+ Sint n;
Sint size;
byte* bytes;
int encoding = erts_get_native_filename_encoding();
@@ -1372,7 +1417,7 @@ BIF_RETTYPE decode_packet_3(BIF_ALIST_3)
trunc_len = val;
goto next_option;
case am_line_delimiter:
- if (type == TCP_PB_LINE_LF && val >= 0 && val <= 255) {
+ if (type == TCP_PB_LINE_LF && val <= 255) {
delimiter = (char)val;
goto next_option;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-09 16:42:38 +0000