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pcntl.c
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/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2017 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 |
| [email protected] so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Jason Greene <[email protected]> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#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
#include <errno.h>
#ifndef NSIG
# ifdef SIGRTMAX
# define NSIG (SIGRTMAX + 1)
# else
# define NSIG 32
# endif
#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_ARG_INFO(1, rusage)
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_ARG_INFO(1, rusage)
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_signal_get_handler, 0, 0, 1)
ZEND_ARG_INFO(0, signo)
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()
#ifdef HAVE_STRUCT_SIGINFO_T
# if HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT
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()
# endif
#endif
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()
#ifdef HAVE_WCONTINUED
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_wifcontinued, 0, 0, 1)
ZEND_ARG_INFO(0, status)
ZEND_END_ARG_INFO()
#endif
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
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_strerror, 0, 0, 1)
ZEND_ARG_INFO(0, errno)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_pcntl_async_signals, 0, 0, 1)
ZEND_ARG_INFO(0, on)
ZEND_END_ARG_INFO()
/* }}} */
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_get_handler, arginfo_pcntl_signal_get_handler)
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)
PHP_FE(pcntl_get_last_error, arginfo_pcntl_void)
PHP_FALIAS(pcntl_errno, pcntl_get_last_error, NULL)
PHP_FE(pcntl_strerror, arginfo_pcntl_strerror)
#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
#ifdef HAVE_STRUCT_SIGINFO_T
# if HAVE_SIGWAITINFO && HAVE_SIGTIMEDWAIT
PHP_FE(pcntl_sigwaitinfo, arginfo_pcntl_sigwaitinfo)
PHP_FE(pcntl_sigtimedwait, arginfo_pcntl_sigtimedwait)
# endif
#endif
#ifdef HAVE_WCONTINUED
PHP_FE(pcntl_wifcontinued, arginfo_pcntl_wifcontinued)
#endif
PHP_FE(pcntl_async_signals, arginfo_pcntl_async_signals)
PHP_FE_END
};
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),
PHP_PCNTL_VERSION,
PHP_MODULE_GLOBALS(pcntl),
PHP_GINIT(pcntl),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
#ifdef COMPILE_DL_PCNTL
ZEND_GET_MODULE(pcntl)
#endif
static void (*orig_interrupt_function)(zend_execute_data *execute_data);
#ifdef HAVE_STRUCT_SIGINFO_T
static void pcntl_signal_handler(int, siginfo_t*, void*);
static void pcntl_siginfo_to_zval(int, siginfo_t*, zval*);
#else
static void pcntl_signal_handler(int);
#endif
static void pcntl_signal_dispatch();
static void pcntl_interrupt_function(zend_execute_data *execute_data);
void php_register_signal_constants(INIT_FUNC_ARGS)
{
/* Wait Constants */
#ifdef WNOHANG
REGISTER_LONG_CONSTANT("WNOHANG", (zend_long) WNOHANG, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef WUNTRACED
REGISTER_LONG_CONSTANT("WUNTRACED", (zend_long) WUNTRACED, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef HAVE_WCONTINUED
REGISTER_LONG_CONSTANT("WCONTINUED", (zend_long) WCONTINUED, CONST_CS | CONST_PERSISTENT);
#endif
/* Signal Constants */
REGISTER_LONG_CONSTANT("SIG_IGN", (zend_long) SIG_IGN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIG_DFL", (zend_long) SIG_DFL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIG_ERR", (zend_long) SIG_ERR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGHUP", (zend_long) SIGHUP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGINT", (zend_long) SIGINT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGQUIT", (zend_long) SIGQUIT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGILL", (zend_long) SIGILL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTRAP", (zend_long) SIGTRAP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGABRT", (zend_long) SIGABRT, CONST_CS | CONST_PERSISTENT);
#ifdef SIGIOT
REGISTER_LONG_CONSTANT("SIGIOT", (zend_long) SIGIOT, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("SIGBUS", (zend_long) SIGBUS, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGFPE", (zend_long) SIGFPE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGKILL", (zend_long) SIGKILL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGUSR1", (zend_long) SIGUSR1, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGSEGV", (zend_long) SIGSEGV, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGUSR2", (zend_long) SIGUSR2, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGPIPE", (zend_long) SIGPIPE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGALRM", (zend_long) SIGALRM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTERM", (zend_long) SIGTERM, CONST_CS | CONST_PERSISTENT);
#ifdef SIGSTKFLT
REGISTER_LONG_CONSTANT("SIGSTKFLT",(zend_long) SIGSTKFLT, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SIGCLD
REGISTER_LONG_CONSTANT("SIGCLD", (zend_long) SIGCLD, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SIGCHLD
REGISTER_LONG_CONSTANT("SIGCHLD", (zend_long) SIGCHLD, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("SIGCONT", (zend_long) SIGCONT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGSTOP", (zend_long) SIGSTOP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTSTP", (zend_long) SIGTSTP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTTIN", (zend_long) SIGTTIN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGTTOU", (zend_long) SIGTTOU, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGURG", (zend_long) SIGURG , CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGXCPU", (zend_long) SIGXCPU, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGXFSZ", (zend_long) SIGXFSZ, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGVTALRM",(zend_long) SIGVTALRM, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGPROF", (zend_long) SIGPROF, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGWINCH", (zend_long) SIGWINCH, CONST_CS | CONST_PERSISTENT);
#ifdef SIGPOLL
REGISTER_LONG_CONSTANT("SIGPOLL", (zend_long) SIGPOLL, CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_LONG_CONSTANT("SIGIO", (zend_long) SIGIO, CONST_CS | CONST_PERSISTENT);
#ifdef SIGPWR
REGISTER_LONG_CONSTANT("SIGPWR", (zend_long) SIGPWR, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SIGSYS
REGISTER_LONG_CONSTANT("SIGSYS", (zend_long) SIGSYS, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGBABY", (zend_long) SIGSYS, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SIGRTMIN
REGISTER_LONG_CONSTANT("SIGRTMIN", (zend_long) SIGRTMIN, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef SIGRTMAX
REGISTER_LONG_CONSTANT("SIGRTMAX", (zend_long) SIGRTMAX, 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 void php_pcntl_register_errno_constants(INIT_FUNC_ARGS)
{
#ifdef EINTR
REGISTER_PCNTL_ERRNO_CONSTANT(EINTR);
#endif
#ifdef ECHILD
REGISTER_PCNTL_ERRNO_CONSTANT(ECHILD);
#endif
#ifdef EINVAL
REGISTER_PCNTL_ERRNO_CONSTANT(EINVAL);
#endif
#ifdef EAGAIN
REGISTER_PCNTL_ERRNO_CONSTANT(EAGAIN);
#endif
#ifdef ESRCH
REGISTER_PCNTL_ERRNO_CONSTANT(ESRCH);
#endif
#ifdef EACCES
REGISTER_PCNTL_ERRNO_CONSTANT(EACCES);
#endif
#ifdef EPERM
REGISTER_PCNTL_ERRNO_CONSTANT(EPERM);
#endif
#ifdef ENOMEM
REGISTER_PCNTL_ERRNO_CONSTANT(ENOMEM);
#endif
#ifdef E2BIG
REGISTER_PCNTL_ERRNO_CONSTANT(E2BIG);
#endif
#ifdef EFAULT
REGISTER_PCNTL_ERRNO_CONSTANT(EFAULT);
#endif
#ifdef EIO
REGISTER_PCNTL_ERRNO_CONSTANT(EIO);
#endif
#ifdef EISDIR
REGISTER_PCNTL_ERRNO_CONSTANT(EISDIR);
#endif
#ifdef ELIBBAD
REGISTER_PCNTL_ERRNO_CONSTANT(ELIBBAD);
#endif
#ifdef ELOOP
REGISTER_PCNTL_ERRNO_CONSTANT(ELOOP);
#endif
#ifdef EMFILE
REGISTER_PCNTL_ERRNO_CONSTANT(EMFILE);
#endif
#ifdef ENAMETOOLONG
REGISTER_PCNTL_ERRNO_CONSTANT(ENAMETOOLONG);
#endif
#ifdef ENFILE
REGISTER_PCNTL_ERRNO_CONSTANT(ENFILE);
#endif
#ifdef ENOENT
REGISTER_PCNTL_ERRNO_CONSTANT(ENOENT);
#endif
#ifdef ENOEXEC
REGISTER_PCNTL_ERRNO_CONSTANT(ENOEXEC);
#endif
#ifdef ENOTDIR
REGISTER_PCNTL_ERRNO_CONSTANT(ENOTDIR);
#endif
#ifdef ETXTBSY
REGISTER_PCNTL_ERRNO_CONSTANT(ETXTBSY);
#endif
}
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;
PCNTL_G(async_signals) = 0;
return SUCCESS;
}
PHP_MINIT_FUNCTION(pcntl)
{
php_register_signal_constants(INIT_FUNC_ARGS_PASSTHRU);
php_pcntl_register_errno_constants(INIT_FUNC_ARGS_PASSTHRU);
php_add_tick_function(pcntl_signal_dispatch, NULL);
orig_interrupt_function = zend_interrupt_function;
zend_interrupt_function = pcntl_interrupt_function;
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) {
PCNTL_G(last_error) = errno;
php_error_docref(NULL, E_WARNING, "Error %d", errno);
}
RETURN_LONG((zend_long) id);
}
/* }}} */
/* {{{ proto int pcntl_alarm(int seconds)
Set an alarm clock for delivery of a signal*/
PHP_FUNCTION(pcntl_alarm)
{
zend_long seconds;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &seconds) == FAILURE)
return;
RETURN_LONG ((zend_long) alarm(seconds));
}
/* }}} */
#define PHP_RUSAGE_PARA(from, to, field) \
add_assoc_long(to, #field, from.field)
#if !defined(_OSD_POSIX) && !defined(__BEOS__) /* BS2000 has only a few fields in the rusage struct */
#define PHP_RUSAGE_SPECIAL(from, to) \
PHP_RUSAGE_PARA(from, to, ru_oublock); \
PHP_RUSAGE_PARA(from, to, ru_inblock); \
PHP_RUSAGE_PARA(from, to, ru_msgsnd); \
PHP_RUSAGE_PARA(from, to, ru_msgrcv); \
PHP_RUSAGE_PARA(from, to, ru_maxrss); \
PHP_RUSAGE_PARA(from, to, ru_ixrss); \
PHP_RUSAGE_PARA(from, to, ru_idrss); \
PHP_RUSAGE_PARA(from, to, ru_minflt); \
PHP_RUSAGE_PARA(from, to, ru_majflt); \
PHP_RUSAGE_PARA(from, to, ru_nsignals); \
PHP_RUSAGE_PARA(from, to, ru_nvcsw); \
PHP_RUSAGE_PARA(from, to, ru_nivcsw); \
PHP_RUSAGE_PARA(from, to, ru_nswap);
#else /*_OSD_POSIX*/
#define PHP_RUSAGE_SPECIAL(from, to)
#endif
#define PHP_RUSAGE_COMMON(from ,to) \
PHP_RUSAGE_PARA(from, to, ru_utime.tv_usec); \
PHP_RUSAGE_PARA(from, to, ru_utime.tv_sec); \
PHP_RUSAGE_PARA(from, to, ru_stime.tv_usec); \
PHP_RUSAGE_PARA(from, to, ru_stime.tv_sec);
#define PHP_RUSAGE_TO_ARRAY(from, to) \
if (to) { \
PHP_RUSAGE_SPECIAL(from, to) \
PHP_RUSAGE_COMMON(from, to); \
}
/* {{{ proto int pcntl_waitpid(int pid, int &status, int options, array &$rusage)
Waits on or returns the status of a forked child as defined by the waitpid() system call */
PHP_FUNCTION(pcntl_waitpid)
{
zend_long pid, options = 0;
zval *z_status = NULL, *z_rusage = NULL;
int status;
pid_t child_id;
#ifdef HAVE_WAIT4
struct rusage rusage;
#endif
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lz/|lz/", &pid, &z_status, &options, &z_rusage) == FAILURE) {
return;
}
status = zval_get_long(z_status);
#ifdef HAVE_WAIT4
if (z_rusage) {
if (Z_TYPE_P(z_rusage) != IS_ARRAY) {
zval_dtor(z_rusage);
array_init(z_rusage);
} else {
zend_hash_clean(Z_ARRVAL_P(z_rusage));
}
memset(&rusage, 0, sizeof(struct rusage));
child_id = wait4((pid_t) pid, &status, options, &rusage);
} else {
child_id = waitpid((pid_t) pid, &status, options);
}
#else
child_id = waitpid((pid_t) pid, &status, options);
#endif
if (child_id < 0) {
PCNTL_G(last_error) = errno;
}
#ifdef HAVE_WAIT4
if (child_id > 0) {
PHP_RUSAGE_TO_ARRAY(rusage, z_rusage);
}
#endif
zval_dtor(z_status);
ZVAL_LONG(z_status, status);
RETURN_LONG((zend_long) child_id);
}
/* }}} */
/* {{{ proto int pcntl_wait(int &status, int $options, array &$rusage)
Waits on or returns the status of a forked child as defined by the waitpid() system call */
PHP_FUNCTION(pcntl_wait)
{
zend_long options = 0;
zval *z_status = NULL, *z_rusage = NULL;
int status;
pid_t child_id;
#ifdef HAVE_WAIT3
struct rusage rusage;
#endif
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z/|lz/", &z_status, &options, &z_rusage) == FAILURE) {
return;
}
status = zval_get_long(z_status);
#ifdef HAVE_WAIT3
if (z_rusage) {
if (Z_TYPE_P(z_rusage) != IS_ARRAY) {
zval_dtor(z_rusage);
array_init(z_rusage);
} else {
zend_hash_clean(Z_ARRVAL_P(z_rusage));
}
memset(&rusage, 0, sizeof(struct rusage));
child_id = wait3(&status, options, &rusage);
} else if (options) {
child_id = wait3(&status, options, NULL);
} else {
child_id = wait(&status);
}
#else
child_id = wait(&status);
#endif
if (child_id < 0) {
PCNTL_G(last_error) = errno;
}
#ifdef HAVE_WAIT3
if (child_id > 0) {
PHP_RUSAGE_TO_ARRAY(rusage, z_rusage);
}
#endif
zval_dtor(z_status);
ZVAL_LONG(z_status, status);
RETURN_LONG((zend_long) child_id);
}
/* }}} */
#undef PHP_RUSAGE_PARA
#undef PHP_RUSAGE_SPECIAL
#undef PHP_RUSAGE_COMMON
#undef PHP_RUSAGE_TO_ARRAY
/* {{{ proto bool pcntl_wifexited(int status)
Returns true if the child status code represents a successful exit */
PHP_FUNCTION(pcntl_wifexited)
{
#ifdef WIFEXITED
zend_long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "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
zend_long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "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
zend_long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &status_word) == FAILURE) {
return;
}
if (WIFSIGNALED(status_word))
RETURN_TRUE;
#endif
RETURN_FALSE;
}
/* }}} */
/* {{{ proto bool pcntl_wifcontinued(int status)
Returns true if the child status code represents a process that was resumed due to a SIGCONT signal */
PHP_FUNCTION(pcntl_wifcontinued)
{
#ifdef HAVE_WCONTINUED
zend_long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &status_word) == FAILURE) {
return;
}
if (WIFCONTINUED(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
zend_long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "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
zend_long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "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
zend_long status_word;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "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;
char **argv = NULL, **envp = NULL;
char **current_arg, **pair;
int pair_length;
zend_string *key;
char *path;
size_t path_len;
zend_ulong key_num;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "p|aa", &path, &path_len, &args, &envs) == FAILURE) {
return;
}
if (ZEND_NUM_ARGS() > 1) {
/* Build argument list */
args_hash = Z_ARRVAL_P(args);
argc = zend_hash_num_elements(args_hash);
argv = safe_emalloc((argc + 2), sizeof(char *), 0);
*argv = path;
current_arg = argv+1;
ZEND_HASH_FOREACH_VAL(args_hash, element) {
if (argi >= argc) break;
convert_to_string_ex(element);
*current_arg = Z_STRVAL_P(element);
argi++;
current_arg++;
} ZEND_HASH_FOREACH_END();
*(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 = Z_ARRVAL_P(envs);
envc = zend_hash_num_elements(envs_hash);
pair = envp = safe_emalloc((envc + 1), sizeof(char *), 0);
ZEND_HASH_FOREACH_KEY_VAL(envs_hash, key_num, key, element) {
if (envi >= envc) break;
if (!key) {
key = zend_long_to_str(key_num);
} else {
zend_string_addref(key);
}
convert_to_string_ex(element);
/* Length of element + equal sign + length of key + null */
pair_length = Z_STRLEN_P(element) + ZSTR_LEN(key) + 2;
*pair = emalloc(pair_length);
strlcpy(*pair, ZSTR_VAL(key), ZSTR_LEN(key) + 1);
strlcat(*pair, "=", pair_length);
strlcat(*pair, Z_STRVAL_P(element), pair_length);
/* Cleanup */
zend_string_release(key);
envi++;
pair++;
} ZEND_HASH_FOREACH_END();
*(pair) = NULL;
if (execve(path, argv, envp) == -1) {
PCNTL_G(last_error) = errno;
php_error_docref(NULL, E_WARNING, "Error has occurred: (errno %d) %s", errno, strerror(errno));
}
/* Cleanup */
for (pair = envp; *pair != NULL; pair++) efree(*pair);
efree(envp);
} else {
if (execv(path, argv) == -1) {
PCNTL_G(last_error) = errno;
php_error_docref(NULL, E_WARNING, "Error has occurred: (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;
zend_string *func_name;
zend_long signo;
zend_bool restart_syscalls = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lz|b", &signo, &handle, &restart_syscalls) == FAILURE) {
return;
}