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pcntl.c
executable file
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pcntl.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2010 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Jason Greene <jason@inetgurus.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#define PCNTL_DEBUG 0
#if PCNTL_DEBUG
#define DEBUG_OUT printf("DEBUG: ");printf
#define IF_DEBUG(z) z
#else
#define IF_DEBUG(z)
#endif
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "php_pcntl.h"
#include "php_signal.h"
#include "php_ticks.h"
#if HAVE_GETPRIORITY || HAVE_SETPRIORITY || HAVE_WAIT3
#include <sys/wait.h>
#include <sys/time.h>
#include <sys/resource.h>
#endif
ZEND_DECLARE_MODULE_GLOBALS(pcntl)
static PHP_GINIT_FUNCTION(pcntl);
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO(arginfo_pcntl_void, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_waitpid, 0, 0, 2)
ZEND_ARG_INFO(0, pid)
ZEND_ARG_INFO(1, status)
ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wait, 0, 0, 1)
ZEND_ARG_INFO(1, status)
ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_signal, 0, 0, 2)
ZEND_ARG_INFO(0, signo)
ZEND_ARG_INFO(0, handler)
ZEND_ARG_INFO(0, restart_syscalls)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_sigprocmask, 0, 0, 2)
ZEND_ARG_INFO(0, how)
ZEND_ARG_INFO(0, set)
ZEND_ARG_INFO(1, oldset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_sigwaitinfo, 0, 0, 1)
ZEND_ARG_INFO(0, set)
ZEND_ARG_INFO(1, info)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_sigtimedwait, 0, 0, 1)
ZEND_ARG_INFO(0, set)
ZEND_ARG_INFO(1, info)
ZEND_ARG_INFO(0, seconds)
ZEND_ARG_INFO(0, nanoseconds)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifexited, 0, 0, 1)
ZEND_ARG_INFO(0, status)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifstopped, 0, 0, 1)
ZEND_ARG_INFO(0, status)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifsignaled, 0, 0, 1)
ZEND_ARG_INFO(0, status)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifexitstatus, 0, 0, 1)
ZEND_ARG_INFO(0, status)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wtermsig, 0, 0, 1)
ZEND_ARG_INFO(0, status)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wstopsig, 0, 0, 1)
ZEND_ARG_INFO(0, status)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_exec, 0, 0, 1)
ZEND_ARG_INFO(0, path)
ZEND_ARG_INFO(0, args)
ZEND_ARG_INFO(0, envs)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_alarm, 0, 0, 1)
ZEND_ARG_INFO(0, seconds)
ZEND_END_ARG_INFO()
#ifdef HAVE_GETPRIORITY
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_getpriority, 0, 0, 0)
ZEND_ARG_INFO(0, pid)
ZEND_ARG_INFO(0, process_identifier)
ZEND_END_ARG_INFO()
#endif
#ifdef HAVE_SETPRIORITY
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_setpriority, 0, 0, 1)
ZEND_ARG_INFO(0, priority)
ZEND_ARG_INFO(0, pid)
ZEND_ARG_INFO(0, process_identifier)
ZEND_END_ARG_INFO()
#endif
/* }}} */
const zend_function_entry pcntl_functions[] = {
PHP_FE(pcntl_fork, arginfo_pcntl_void)
PHP_FE(pcntl_waitpid, arginfo_pcntl_waitpid)
PHP_FE(pcntl_wait, arginfo_pcntl_wait)
PHP_FE(pcntl_signal, arginfo_pcntl_signal)
PHP_FE(pcntl_signal_dispatch, arginfo_pcntl_void)
PHP_FE(pcntl_wifexited, arginfo_pcntl_wifexited)
PHP_FE(pcntl_wifstopped, arginfo_pcntl_wifstopped)
PHP_FE(pcntl_wifsignaled, arginfo_pcntl_wifsignaled)
PHP_FE(pcntl_wexitstatus, arginfo_pcntl_wifexitstatus)
PHP_FE(pcntl_wtermsig, arginfo_pcntl_wtermsig)
PHP_FE(pcntl_wstopsig, arginfo_pcntl_wstopsig)
PHP_FE(pcntl_exec, arginfo_pcntl_exec)
PHP_FE(pcntl_alarm, arginfo_pcntl_alarm)
#ifdef HAVE_GETPRIORITY
PHP_FE(pcntl_getpriority, arginfo_pcntl_getpriority)
#endif
#ifdef HAVE_SETPRIORITY
PHP_FE(pcntl_setpriority, arginfo_pcntl_setpriority)
#endif
#ifdef HAVE_SIGPROCMASK
PHP_FE(pcntl_sigprocmask, arginfo_pcntl_sigprocmask)
#endif
#if HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT
PHP_FE(pcntl_sigwaitinfo, arginfo_pcntl_sigwaitinfo)
PHP_FE(pcntl_sigtimedwait, arginfo_pcntl_sigtimedwait)
#endif
{NULL, NULL, NULL}
};
zend_module_entry pcntl_module_entry = {
STANDARD_MODULE_HEADER,
"pcntl",
pcntl_functions,
PHP_MINIT(pcntl),
PHP_MSHUTDOWN(pcntl),
PHP_RINIT(pcntl),
PHP_RSHUTDOWN(pcntl),
PHP_MINFO(pcntl),
NO_VERSION_YET,
PHP_MODULE_GLOBALS(pcntl),
PHP_GINIT(pcntl),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
#ifdef COMPILE_DL_PCNTL
ZEND_GET_MODULE(pcntl)
#endif
static void pcntl_signal_handler(int);
static void pcntl_signal_dispatch();
void php_register_signal_constants(INIT_FUNC_ARGS)
{
/* Wait Constants */
#ifdef WNOHANG
REGISTER_LONG_CONSTANT("WNOHANG", (long) WNOHANG, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef WUNTRACED
REGISTER_LONG_CONSTANT("WUNTRACED", (long) WUNTRACED, CONST_CS | CONST_PERSISTENT);
#endif
/* Signal Constants */
REGISTER_LONG_CONSTANT("SIG_IGN", (long) SIG_IGN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIG_DFL", (long) SIG_DFL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIG_ERR", (long) SIG_ERR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGHUP", (long) SIGHUP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGINT", (long) SIGINT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGQUIT", (long) SIGQUIT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGILL", (long) SIGILL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTRAP", (long) SIGTRAP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGABRT", (long) SIGABRT, CONST_CS | CONST_PERSISTENT);
#ifdef SIGIOT
REGISTER_LONG_CONSTANT("SIGIOT", (long) SIGIOT, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("SIGBUS", (long) SIGBUS, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGFPE", (long) SIGFPE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGKILL", (long) SIGKILL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGUSR1", (long) SIGUSR1, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGSEGV", (long) SIGSEGV, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGUSR2", (long) SIGUSR2, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGPIPE", (long) SIGPIPE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGALRM", (long) SIGALRM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTERM", (long) SIGTERM, CONST_CS | CONST_PERSISTENT);
#ifdef SIGSTKFLT
REGISTER_LONG_CONSTANT("SIGSTKFLT",(long) SIGSTKFLT, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SIGCLD
REGISTER_LONG_CONSTANT("SIGCLD", (long) SIGCLD, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SIGCHLD
REGISTER_LONG_CONSTANT("SIGCHLD", (long) SIGCHLD, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("SIGCONT", (long) SIGCONT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGSTOP", (long) SIGSTOP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTSTP", (long) SIGTSTP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTTIN", (long) SIGTTIN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTTOU", (long) SIGTTOU, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGURG", (long) SIGURG , CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGXCPU", (long) SIGXCPU, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGXFSZ", (long) SIGXFSZ, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGVTALRM",(long) SIGVTALRM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGPROF", (long) SIGPROF, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGWINCH", (long) SIGWINCH, CONST_CS | CONST_PERSISTENT);
#ifdef SIGPOLL
REGISTER_LONG_CONSTANT("SIGPOLL", (long) SIGPOLL, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("SIGIO", (long) SIGIO, CONST_CS | CONST_PERSISTENT);
#ifdef SIGPWR
REGISTER_LONG_CONSTANT("SIGPWR", (long) SIGPWR, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SIGSYS
REGISTER_LONG_CONSTANT("SIGSYS", (long) SIGSYS, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGBABY", (long) SIGSYS, CONST_CS | CONST_PERSISTENT);
#endif
#if HAVE_GETPRIORITY || HAVE_SETPRIORITY
REGISTER_LONG_CONSTANT("PRIO_PGRP", PRIO_PGRP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PRIO_USER", PRIO_USER, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("PRIO_PROCESS", PRIO_PROCESS, CONST_CS | CONST_PERSISTENT);
#endif
/* {{{ "how" argument for sigprocmask */
#ifdef HAVE_SIGPROCMASK
REGISTER_LONG_CONSTANT("SIG_BLOCK", SIG_BLOCK, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIG_UNBLOCK", SIG_UNBLOCK, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIG_SETMASK", SIG_SETMASK, CONST_CS | CONST_PERSISTENT);
#endif
/* }}} */
/* {{{ si_code */
#if HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT
REGISTER_LONG_CONSTANT("SI_USER", SI_USER, CONST_CS | CONST_PERSISTENT);
#ifdef SI_NOINFO
REGISTER_LONG_CONSTANT("SI_NOINFO", SI_NOINFO, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SI_KERNEL
REGISTER_LONG_CONSTANT("SI_KERNEL", SI_KERNEL, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("SI_QUEUE", SI_QUEUE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SI_TIMER", SI_TIMER, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SI_MESGQ", SI_MESGQ, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SI_ASYNCIO", SI_ASYNCIO, CONST_CS | CONST_PERSISTENT);
#ifdef SI_SIGIO
REGISTER_LONG_CONSTANT("SI_SIGIO", SI_SIGIO, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SI_TKILL
REGISTER_LONG_CONSTANT("SI_TKILL", SI_TKILL, CONST_CS | CONST_PERSISTENT);
#endif
/* si_code for SIGCHILD */
#ifdef CLD_EXITED
REGISTER_LONG_CONSTANT("CLD_EXITED", CLD_EXITED, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef CLD_KILLED
REGISTER_LONG_CONSTANT("CLD_KILLED", CLD_KILLED, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef CLD_DUMPED
REGISTER_LONG_CONSTANT("CLD_DUMPED", CLD_DUMPED, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef CLD_TRAPPED
REGISTER_LONG_CONSTANT("CLD_TRAPPED", CLD_TRAPPED, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef CLD_STOPPED
REGISTER_LONG_CONSTANT("CLD_STOPPED", CLD_STOPPED, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef CLD_CONTINUED
REGISTER_LONG_CONSTANT("CLD_CONTINUED", CLD_CONTINUED, CONST_CS | CONST_PERSISTENT);
#endif
/* si_code for SIGTRAP */
#ifdef TRAP_BRKPT
REGISTER_LONG_CONSTANT("TRAP_BRKPT", TRAP_BRKPT, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef TRAP_TRACE
REGISTER_LONG_CONSTANT("TRAP_TRACE", TRAP_TRACE, CONST_CS | CONST_PERSISTENT);
#endif
/* si_code for SIGPOLL */
#ifdef POLL_IN
REGISTER_LONG_CONSTANT("POLL_IN", POLL_IN, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef POLL_OUT
REGISTER_LONG_CONSTANT("POLL_OUT", POLL_OUT, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef POLL_MSG
REGISTER_LONG_CONSTANT("POLL_MSG", POLL_MSG, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef POLL_ERR
REGISTER_LONG_CONSTANT("POLL_ERR", POLL_ERR, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef POLL_PRI
REGISTER_LONG_CONSTANT("POLL_PRI", POLL_PRI, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef POLL_HUP
REGISTER_LONG_CONSTANT("POLL_HUP", POLL_HUP, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef ILL_ILLOPC
REGISTER_LONG_CONSTANT("ILL_ILLOPC", ILL_ILLOPC, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef ILL_ILLOPN
REGISTER_LONG_CONSTANT("ILL_ILLOPN", ILL_ILLOPN, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef ILL_ILLADR
REGISTER_LONG_CONSTANT("ILL_ILLADR", ILL_ILLADR, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef ILL_ILLTRP
REGISTER_LONG_CONSTANT("ILL_ILLTRP", ILL_ILLTRP, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef ILL_PRVOPC
REGISTER_LONG_CONSTANT("ILL_PRVOPC", ILL_PRVOPC, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef ILL_PRVREG
REGISTER_LONG_CONSTANT("ILL_PRVREG", ILL_PRVREG, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef ILL_COPROC
REGISTER_LONG_CONSTANT("ILL_COPROC", ILL_COPROC, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef ILL_BADSTK
REGISTER_LONG_CONSTANT("ILL_BADSTK", ILL_BADSTK, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef FPE_INTDIV
REGISTER_LONG_CONSTANT("FPE_INTDIV", FPE_INTDIV, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef FPE_INTOVF
REGISTER_LONG_CONSTANT("FPE_INTOVF", FPE_INTOVF, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef FPE_FLTDIV
REGISTER_LONG_CONSTANT("FPE_FLTDIV", FPE_FLTDIV, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef FPE_FLTOVF
REGISTER_LONG_CONSTANT("FPE_FLTOVF", FPE_FLTOVF, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef FPE_FLTUND
REGISTER_LONG_CONSTANT("FPE_FLTUND", FPE_FLTINV, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef FPE_FLTRES
REGISTER_LONG_CONSTANT("FPE_FLTRES", FPE_FLTRES, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef FPE_FLTINV
REGISTER_LONG_CONSTANT("FPE_FLTINV", FPE_FLTINV, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef FPE_FLTSUB
REGISTER_LONG_CONSTANT("FPE_FLTSUB", FPE_FLTSUB, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SEGV_MAPERR
REGISTER_LONG_CONSTANT("SEGV_MAPERR", SEGV_MAPERR, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SEGV_ACCERR
REGISTER_LONG_CONSTANT("SEGV_ACCERR", SEGV_ACCERR, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef BUS_ADRALN
REGISTER_LONG_CONSTANT("BUS_ADRALN", BUS_ADRALN, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef BUS_ADRERR
REGISTER_LONG_CONSTANT("BUS_ADRERR", BUS_ADRERR, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef BUS_OBJERR
REGISTER_LONG_CONSTANT("BUS_OBJERR", BUS_OBJERR, CONST_CS | CONST_PERSISTENT);
#endif
#endif /* HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT */
/* }}} */
}
static PHP_GINIT_FUNCTION(pcntl)
{
memset(pcntl_globals, 0, sizeof(*pcntl_globals));
}
PHP_RINIT_FUNCTION(pcntl)
{
zend_hash_init(&PCNTL_G(php_signal_table), 16, NULL, ZVAL_PTR_DTOR, 0);
PCNTL_G(head) = PCNTL_G(tail) = PCNTL_G(spares) = NULL;
return SUCCESS;
}
PHP_MINIT_FUNCTION(pcntl)
{
php_register_signal_constants(INIT_FUNC_ARGS_PASSTHRU);
php_add_tick_function(pcntl_signal_dispatch);
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(pcntl)
{
return SUCCESS;
}
PHP_RSHUTDOWN_FUNCTION(pcntl)
{
struct php_pcntl_pending_signal *sig;
/* FIXME: if a signal is delivered after this point, things will go pear shaped;
* need to remove signal handlers */
zend_hash_destroy(&PCNTL_G(php_signal_table));
while (PCNTL_G(head)) {
sig = PCNTL_G(head);
PCNTL_G(head) = sig->next;
efree(sig);
}
while (PCNTL_G(spares)) {
sig = PCNTL_G(spares);
PCNTL_G(spares) = sig->next;
efree(sig);
}
return SUCCESS;
}
PHP_MINFO_FUNCTION(pcntl)
{
php_info_print_table_start();
php_info_print_table_header(2, "pcntl support", "enabled");
php_info_print_table_end();
}
/* {{{ proto int pcntl_fork(void)
Forks the currently running process following the same behavior as the UNIX fork() system call*/
PHP_FUNCTION(pcntl_fork)
{
pid_t id;
id = fork();
if (id == -1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error %d", errno);
}
RETURN_LONG((long) id);
}
/* }}} */
/* {{{ proto int pcntl_alarm(int seconds)
Set an alarm clock for delivery of a signal*/
PHP_FUNCTION(pcntl_alarm)
{
long seconds;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &seconds) == FAILURE)
return;
RETURN_LONG ((long) alarm(seconds));
}
/* }}} */
/* {{{ proto int pcntl_waitpid(int pid, int &status, int options)
Waits on or returns the status of a forked child as defined by the waitpid() system call */
PHP_FUNCTION(pcntl_waitpid)
{
long pid, options = 0;
zval *z_status = NULL;
int status;
pid_t child_id;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "lz|l", &pid, &z_status, &options) == FAILURE)
return;
convert_to_long_ex(&z_status);
status = Z_LVAL_P(z_status);
child_id = waitpid((pid_t) pid, &status, options);
Z_LVAL_P(z_status) = status;
RETURN_LONG((long) child_id);
}
/* }}} */
/* {{{ proto int pcntl_wait(int &status)
Waits on or returns the status of a forked child as defined by the waitpid() system call */
PHP_FUNCTION(pcntl_wait)
{
long options = 0;
zval *z_status = NULL;
int status;
pid_t child_id;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|l", &z_status, &options) == FAILURE)
return;
convert_to_long_ex(&z_status);
status = Z_LVAL_P(z_status);
#ifdef HAVE_WAIT3
if(options) {
child_id = wait3(&status, options, NULL);
}
else {
child_id = wait(&status);
}
#else
child_id = wait(&status);
#endif
Z_LVAL_P(z_status) = status;
RETURN_LONG((long) child_id);
}
/* }}} */
/* {{{ proto bool pcntl_wifexited(int status)
Returns true if the child status code represents a successful exit */
PHP_FUNCTION(pcntl_wifexited)
{
#ifdef WIFEXITED
long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
return;
}
if (WIFEXITED(status_word))
RETURN_TRUE;
#endif
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool pcntl_wifstopped(int status)
Returns true if the child status code represents a stopped process (WUNTRACED must have been used with waitpid) */
PHP_FUNCTION(pcntl_wifstopped)
{
#ifdef WIFSTOPPED
long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
return;
}
if (WIFSTOPPED(status_word))
RETURN_TRUE;
#endif
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool pcntl_wifsignaled(int status)
Returns true if the child status code represents a process that was terminated due to a signal */
PHP_FUNCTION(pcntl_wifsignaled)
{
#ifdef WIFSIGNALED
long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
return;
}
if (WIFSIGNALED(status_word))
RETURN_TRUE;
#endif
RETURN_FALSE;
}
/* }}} */
/* {{{ proto int pcntl_wexitstatus(int status)
Returns the status code of a child's exit */
PHP_FUNCTION(pcntl_wexitstatus)
{
#ifdef WEXITSTATUS
long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
return;
}
RETURN_LONG(WEXITSTATUS(status_word));
#else
RETURN_FALSE;
#endif
}
/* }}} */
/* {{{ proto int pcntl_wtermsig(int status)
Returns the number of the signal that terminated the process who's status code is passed */
PHP_FUNCTION(pcntl_wtermsig)
{
#ifdef WTERMSIG
long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
return;
}
RETURN_LONG(WTERMSIG(status_word));
#else
RETURN_FALSE;
#endif
}
/* }}} */
/* {{{ proto int pcntl_wstopsig(int status)
Returns the number of the signal that caused the process to stop who's status code is passed */
PHP_FUNCTION(pcntl_wstopsig)
{
#ifdef WSTOPSIG
long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &status_word) == FAILURE) {
return;
}
RETURN_LONG(WSTOPSIG(status_word));
#else
RETURN_FALSE;
#endif
}
/* }}} */
/* {{{ proto bool pcntl_exec(string path [, array args [, array envs]])
Executes specified program in current process space as defined by exec(2) */
PHP_FUNCTION(pcntl_exec)
{
zval *args = NULL, *envs = NULL;
zval **element;
HashTable *args_hash, *envs_hash;
int argc = 0, argi = 0;
int envc = 0, envi = 0;
int return_val = 0;
char **argv = NULL, **envp = NULL;
char **current_arg, **pair;
int pair_length;
char *key;
uint key_length;
char *path;
int path_len;
ulong key_num;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|aa", &path, &path_len, &args, &envs) == FAILURE) {
return;
}
if (ZEND_NUM_ARGS() > 1) {
/* Build argumnent list */
args_hash = HASH_OF(args);
argc = zend_hash_num_elements(args_hash);
argv = safe_emalloc((argc + 2), sizeof(char *), 0);
*argv = path;
for ( zend_hash_internal_pointer_reset(args_hash), current_arg = argv+1;
(argi < argc && (zend_hash_get_current_data(args_hash, (void **) &element) == SUCCESS));
(argi++, current_arg++, zend_hash_move_forward(args_hash)) ) {
convert_to_string_ex(element);
*current_arg = Z_STRVAL_PP(element);
}
*(current_arg) = NULL;
} else {
argv = emalloc(2 * sizeof(char *));
*argv = path;
*(argv+1) = NULL;
}
if ( ZEND_NUM_ARGS() == 3 ) {
/* Build environment pair list */
envs_hash = HASH_OF(envs);
envc = zend_hash_num_elements(envs_hash);
envp = safe_emalloc((envc + 1), sizeof(char *), 0);
for ( zend_hash_internal_pointer_reset(envs_hash), pair = envp;
(envi < envc && (zend_hash_get_current_data(envs_hash, (void **) &element) == SUCCESS));
(envi++, pair++, zend_hash_move_forward(envs_hash)) ) {
switch (return_val = zend_hash_get_current_key_ex(envs_hash, &key, &key_length, &key_num, 0, NULL)) {
case HASH_KEY_IS_LONG:
key = emalloc(101);
snprintf(key, 100, "%ld", key_num);
key_length = strlen(key);
break;
case HASH_KEY_NON_EXISTANT:
pair--;
continue;
}
convert_to_string_ex(element);
/* Length of element + equal sign + length of key + null */
pair_length = Z_STRLEN_PP(element) + key_length + 2;
*pair = emalloc(pair_length);
strlcpy(*pair, key, key_length);
strlcat(*pair, "=", pair_length);
strlcat(*pair, Z_STRVAL_PP(element), pair_length);
/* Cleanup */
if (return_val == HASH_KEY_IS_LONG) efree(key);
}
*(pair) = NULL;
if (execve(path, argv, envp) == -1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error has occured: (errno %d) %s", errno, strerror(errno));
}
/* Cleanup */
for (pair = envp; *pair != NULL; pair++) efree(*pair);
efree(envp);
} else {
if (execv(path, argv) == -1) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error has occured: (errno %d) %s", errno, strerror(errno));
}
}
efree(argv);
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool pcntl_signal(int signo, callback handle [, bool restart_syscalls])
Assigns a system signal handler to a PHP function */
PHP_FUNCTION(pcntl_signal)
{
zval *handle, **dest_handle = NULL;
char *func_name;
long signo;
zend_bool restart_syscalls = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "lz|b", &signo, &handle, &restart_syscalls) == FAILURE) {
return;
}
if (!PCNTL_G(spares)) {
/* since calling malloc() from within a signal handler is not portable,
* pre-allocate a few records for recording signals */
int i;
for (i = 0; i < 32; i++) {
struct php_pcntl_pending_signal *psig;
psig = emalloc(sizeof(*psig));
psig->next = PCNTL_G(spares);
PCNTL_G(spares) = psig;
}
}
/* Special long value case for SIG_DFL and SIG_IGN */
if (Z_TYPE_P(handle)==IS_LONG) {
if (Z_LVAL_P(handle)!= (long) SIG_DFL && Z_LVAL_P(handle) != (long) SIG_IGN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Invalid value for handle argument specified");
}
if (php_signal(signo, (Sigfunc *) Z_LVAL_P(handle), (int) restart_syscalls) == SIG_ERR) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error assigning signal");
RETURN_FALSE;
}
RETURN_TRUE;
}
if (!zend_is_callable(handle, 0, &func_name TSRMLS_CC)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s is not a callable function name error", func_name);
efree(func_name);
RETURN_FALSE;
}
efree(func_name);
/* Add the function name to our signal table */
zend_hash_index_update(&PCNTL_G(php_signal_table), signo, (void **) &handle, sizeof(zval *), (void **) &dest_handle);
if (dest_handle) zval_add_ref(dest_handle);
if (php_signal(signo, pcntl_signal_handler, (int) restart_syscalls) == SIG_ERR) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error assigning signal");
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool pcntl_signal_dispatch()
Dispatch signals to signal handlers */
PHP_FUNCTION(pcntl_signal_dispatch)
{
pcntl_signal_dispatch();
RETURN_TRUE;
}
/* }}} */
#ifdef HAVE_SIGPROCMASK
/* {{{ proto bool pcntl_sigprocmask(int how, array set[, array &oldset])
Examine and change blocked signals */
PHP_FUNCTION(pcntl_sigprocmask)
{
long how, signo;
zval *user_set, *user_oldset = NULL, **user_signo;
sigset_t set, oldset;
HashPosition pos;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "la|z", &how, &user_set, &user_oldset) == FAILURE) {
return;
}
if (sigemptyset(&set) != 0 || sigemptyset(&oldset) != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_FALSE;
}
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(user_set), &pos);
while (zend_hash_get_current_data_ex(Z_ARRVAL_P(user_set), (void **)&user_signo, &pos) == SUCCESS)
{
if (Z_TYPE_PP(user_signo) != IS_LONG) {
SEPARATE_ZVAL(user_signo);
convert_to_long_ex(user_signo);
}
signo = Z_LVAL_PP(user_signo);
if (sigaddset(&set, signo) != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_FALSE;
}
zend_hash_move_forward_ex(Z_ARRVAL_P(user_set), &pos);
}
if (sigprocmask(how, &set, &oldset) != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_FALSE;
}
if (user_oldset != NULL) {
if (Z_TYPE_P(user_oldset) != IS_ARRAY) {
zval_dtor(user_oldset);
array_init(user_oldset);
} else {
zend_hash_clean(Z_ARRVAL_P(user_oldset));
}
for (signo = 1; signo < MAX(NSIG-1, SIGRTMAX); ++signo) {
if (sigismember(&oldset, signo) != 1) {
continue;
}
add_next_index_long(user_oldset, signo);
}
}
RETURN_TRUE;
}
/* }}} */
#endif
#if HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT
static void pcntl_sigwaitinfo(INTERNAL_FUNCTION_PARAMETERS, int timedwait) /* {{{ */
{
zval *user_set, **user_signo, *user_siginfo = NULL;
long tv_sec = 0, tv_nsec = 0;
sigset_t set;
HashPosition pos;
int signo;
siginfo_t siginfo;
struct timespec timeout;
if (timedwait) {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|zll", &user_set, &user_siginfo, &tv_sec, &tv_nsec) == FAILURE) {
return;
}
} else {
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "a|z", &user_set, &user_siginfo) == FAILURE) {
return;
}
}
if (sigemptyset(&set) != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_FALSE;
}
zend_hash_internal_pointer_reset_ex(Z_ARRVAL_P(user_set), &pos);
while (zend_hash_get_current_data_ex(Z_ARRVAL_P(user_set), (void **)&user_signo, &pos) == SUCCESS)
{
if (Z_TYPE_PP(user_signo) != IS_LONG) {
SEPARATE_ZVAL(user_signo);
convert_to_long_ex(user_signo);
}
signo = Z_LVAL_PP(user_signo);
if (sigaddset(&set, signo) != 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
RETURN_FALSE;
}
zend_hash_move_forward_ex(Z_ARRVAL_P(user_set), &pos);
}
if (timedwait) {
timeout.tv_sec = (time_t) tv_sec;
timeout.tv_nsec = tv_nsec;
signo = sigtimedwait(&set, &siginfo, &timeout);
} else {
signo = sigwaitinfo(&set, &siginfo);
}
if (signo == -1 && errno != EAGAIN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", strerror(errno));
}
/*
* sigtimedwait and sigwaitinfo can return 0 on success on some
* platforms, e.g. NetBSD
*/
if (!signo && siginfo.si_signo) {
signo = siginfo.si_signo;
}
if (signo > 0 && user_siginfo) {
if (Z_TYPE_P(user_siginfo) != IS_ARRAY) {
zval_dtor(user_siginfo);
array_init(user_siginfo);
} else {
zend_hash_clean(Z_ARRVAL_P(user_siginfo));
}
add_assoc_long_ex(user_siginfo, "signo", sizeof("signo"), siginfo.si_signo);
add_assoc_long_ex(user_siginfo, "errno", sizeof("errno"), siginfo.si_errno);
add_assoc_long_ex(user_siginfo, "code", sizeof("code"), siginfo.si_code);
switch(signo) {
#ifdef SIGCHLD
case SIGCHLD:
add_assoc_long_ex(user_siginfo, "status", sizeof("status"), siginfo.si_status);
# ifdef si_utime
add_assoc_double_ex(user_siginfo, "utime", sizeof("utime"), siginfo.si_utime);
# endif
# ifdef si_stime
add_assoc_double_ex(user_siginfo, "stime", sizeof("stime"), siginfo.si_stime);
# endif
add_assoc_long_ex(user_siginfo, "pid", sizeof("pid"), siginfo.si_pid);
add_assoc_long_ex(user_siginfo, "uid", sizeof("uid"), siginfo.si_uid);
break;
#endif
case SIGILL:
case SIGFPE:
case SIGSEGV:
case SIGBUS:
add_assoc_double_ex(user_siginfo, "addr", sizeof("addr"), (long)siginfo.si_addr);
break;
#ifdef SIGPOLL
case SIGPOLL:
add_assoc_long_ex(user_siginfo, "band", sizeof("band"), siginfo.si_band);
# ifdef si_fd
add_assoc_long_ex(user_siginfo, "fd", sizeof("fd"), siginfo.si_fd);
# endif
break;
#endif
EMPTY_SWITCH_DEFAULT_CASE();
}
}
RETURN_LONG(signo);
}
/* }}} */
/* {{{ proto int pcnlt_sigwaitinfo(array set[, array &siginfo])
Synchronously wait for queued signals */
PHP_FUNCTION(pcntl_sigwaitinfo)
{
pcntl_sigwaitinfo(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
}
/* }}} */
/* {{{ proto int pcntl_sigtimedwait(array set[, array &siginfo[, int seconds[, int nanoseconds]]])
Wait for queued signals */
PHP_FUNCTION(pcntl_sigtimedwait)
{
pcntl_sigwaitinfo(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
#endif
#ifdef HAVE_GETPRIORITY
/* {{{ proto int pcntl_getpriority([int pid [, int process_identifier]])