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|
/*
+----------------------------------------------------------------------+
| PHP version 4.0 |
+----------------------------------------------------------------------+
| Copyright (c) 1997, 1998, 1999, 2000, 2001 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.02 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://www.php.net/license/2_02.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. |
+----------------------------------------------------------------------+
| Authors: Jason Greene <jason@inetgurus.net> |
+----------------------------------------------------------------------+
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "php_pcntl.h"
ZEND_DECLARE_MODULE_GLOBALS(pcntl)
static int le_pcntl;
function_entry pcntl_functions[] = {
PHP_FE(pcntl_fork, NULL)
PHP_FE(pcntl_waitpid, NULL)
PHP_FE(pcntl_signal, NULL)
{NULL, NULL, NULL}
};
zend_module_entry pcntl_module_entry = {
"pcntl", pcntl_functions,
PHP_MINIT(pcntl),
PHP_MSHUTDOWN(pcntl),
NULL,
NULL,
PHP_MINFO(pcntl),
STANDARD_MODULE_PROPERTIES
};
#ifdef COMPILE_DL_PCNTL
ZEND_GET_MODULE(pcntl)
#endif
void php_register_signal_constants(INIT_FUNC_ARGS)
{
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);
REGISTER_LONG_CONSTANT("SIGIOT", (long) SIGIOT, CONST_CS | CONST_PERSISTENT);
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);
REGISTER_LONG_CONSTANT("SIGSTKFLT",(long) SIGSTKFLT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGCLD", (long) SIGCLD, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGCHLD", (long) SIGCHLD, CONST_CS | CONST_PERSISTENT);
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);
REGISTER_LONG_CONSTANT("SIGPOLL", (long) SIGPOLL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGIO", (long) SIGIO, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGPWR", (long) SIGPWR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SIGSYS", (long) SIGSYS, CONST_CS | CONST_PERSISTENT);
}
PHP_MINIT_FUNCTION(pcntl)
{
PCNTL_LS_FETCH();
php_register_signal_constants(INIT_FUNC_ARGS_PASSTHRU);
zend_hash_init(&PCNTL_G(php_signal_table), 16, NULL, NULL, 1);
return SUCCESS;
}
PHP_MSHUTDOWN_FUNCTION(pcntl)
{
PCNTL_LS_FETCH();
zend_hash_destroy(&PCNTL_G(php_signal_table));
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 long pcntl_fork()
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(E_ERROR, "Error %d in %s", errno, get_active_function_name());
}
RETURN_LONG((long) id);
}
/* }}} */
/* {{{ proto long pcntl_waitpid(long pid, long status, long options)
Waits on or returns the status of a forked child as defined by the waitpid() system call */
PHP_FUNCTION(pcntl_waitpid)
{
zval **pid, **status, **options;
int temp_options, temp_status=0;
pid_t temp_id;
if (ZEND_NUM_ARGS() > 3 || ZEND_NUM_ARGS() < 2 || zend_get_parameters_ex(ZEND_NUM_ARGS(), &pid, &status, &options) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_long_ex(pid);
convert_to_long_ex(options);
SEPARATE_ZVAL(status);
convert_to_long_ex(status);
if (ZEND_NUM_ARGS()==2) temp_options=0;
else temp_options=Z_LVAL_PP(options);
temp_id = waitpid((pid_t) Z_LVAL_PP(pid), &temp_status, temp_options);
Z_LVAL_PP(status)=temp_status;
RETURN_LONG((long) temp_id);
}
/* }}} */
/* {{{ proto bool pcntl_signal(long signo, mixed handle)
Assigns a system signal handler to a php function */
PHP_FUNCTION(pcntl_signal)
{
zval **signo, **handle;
char *func_name;
PCNTL_LS_FETCH();
if (ZEND_NUM_ARGS() != 2 || zend_get_parameters_ex(2, &signo, &handle) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_long_ex(signo);
/* Special long value case for SIG_DFL and SIG_IGN */
if (Z_TYPE_PP(handle)==IS_LONG) {
if (Z_LVAL_PP(handle)!= (long) SIG_DFL && Z_LVAL_PP(handle) != (long) SIG_IGN) {
php_error(E_WARNING, "Invalid value for handle argument specifEied in %s", get_active_function_name());
}
if (php_signal(Z_LVAL_PP(signo), (Sigfunc *) Z_LVAL_PP(handle))==SIG_ERR) {
php_error(E_WARNING, "Error assigning singal in %s", get_active_function_name());
RETURN_FALSE;
}
RETURN_TRUE;
}
if (Z_TYPE_PP(handle)!=IS_STRING) {
php_error(E_WARNING, "Invalid type specified for handle argument in %s", get_active_function_name());
RETURN_FALSE;
}
convert_to_string_ex(handle); /* Just in case */
if (!zend_is_callable(*handle, 0, &func_name)) {
php_error(E_WARNING, "%s: %s is not a callable function name error", get_active_function_name(), 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), Z_LVAL_PP(signo), Z_STRVAL_PP(handle), (Z_STRLEN_PP(handle) + 1) * sizeof(char), NULL);
if (php_signal(Z_LVAL_PP(signo), pcntl_signal_handler)==SIG_ERR) {
php_error(E_WARNING, "Error assigning singal in %s", get_active_function_name());
RETURN_FALSE;
}
RETURN_TRUE;
}
/* }}} */
/* Our custom signal handler that calls the appropriate php_function */
static void pcntl_signal_handler(int signo)
{
char *func_name;
zval *param, *call_name, *retval;
PCNTL_LS_FETCH();
/* printf("Caught signal: %d\n", signo); */
if (zend_hash_index_find(&PCNTL_G(php_signal_table), (long) signo, (void *) &func_name)==FAILURE) {
/* printf("Signl handler not fount"); */
return;
}
/* printf("Signal handler found, Calling %s\n", func_name); */
MAKE_STD_ZVAL(param);
MAKE_STD_ZVAL(call_name);
MAKE_STD_ZVAL(retval);
ZVAL_LONG(param, signo);
ZVAL_STRING(call_name, func_name, 1);
/* Call php singal handler - Note that we do not report errors, and we ignore the return value */
call_user_function(EG(function_table), NULL, call_name, retval, 1, ¶m);
zval_dtor(call_name);
efree(call_name);
efree(param);
return;
}
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* indent-tabs-mode: t
* End:
*/
|
