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swoole_process.c
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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache 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.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 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: Tianfeng Han <[email protected]> |
+----------------------------------------------------------------------+
*/
#if __APPLE__
// Fix warning: 'daemon' is deprecated: first deprecated in macOS 10.5 - Use posix_spawn APIs instead. [-Wdeprecated-declarations]
#define daemon yes_we_know_that_daemon_is_deprecated_in_os_x_10_5_thankyou
#endif
#include "php_swoole.h"
#include "php_streams.h"
#include "php_network.h"
#if __APPLE__
#undef daemon
extern int daemon(int, int);
#endif
static PHP_METHOD(swoole_process, __construct);
static PHP_METHOD(swoole_process, __destruct);
static PHP_METHOD(swoole_process, useQueue);
static PHP_METHOD(swoole_process, statQueue);
static PHP_METHOD(swoole_process, freeQueue);
static PHP_METHOD(swoole_process, pop);
static PHP_METHOD(swoole_process, push);
static PHP_METHOD(swoole_process, kill);
static PHP_METHOD(swoole_process, signal);
static PHP_METHOD(swoole_process, alarm);
static PHP_METHOD(swoole_process, wait);
static PHP_METHOD(swoole_process, daemon);
#ifdef HAVE_CPU_AFFINITY
static PHP_METHOD(swoole_process, setaffinity);
#endif
static PHP_METHOD(swoole_process, setTimeout);
static PHP_METHOD(swoole_process, setBlocking);
static PHP_METHOD(swoole_process, start);
static PHP_METHOD(swoole_process, write);
static PHP_METHOD(swoole_process, read);
static PHP_METHOD(swoole_process, close);
static PHP_METHOD(swoole_process, exit);
static PHP_METHOD(swoole_process, exec);
static void php_swoole_onSignal(int signo);
static void free_signal_callback(void* data);
static uint32_t php_swoole_worker_round_id = 0;
static zval *signal_callback[SW_SIGNO_MAX];
static zend_class_entry swoole_process_ce;
zend_class_entry *swoole_process_class_entry_ptr;
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_construct, 0, 0, 1)
ZEND_ARG_INFO(0, callback)
ZEND_ARG_INFO(0, redirect_stdin_and_stdout)
ZEND_ARG_INFO(0, pipe_type)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_void, 0, 0, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_wait, 0, 0, 0)
ZEND_ARG_INFO(0, blocking)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_signal, 0, 0, 2)
ZEND_ARG_INFO(0, signal_no)
ZEND_ARG_INFO(0, callback)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_alarm, 0, 0, 1)
ZEND_ARG_INFO(0, usec)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_kill, 0, 0, 1)
ZEND_ARG_INFO(0, pid)
ZEND_ARG_INFO(0, signal_no)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_daemon, 0, 0, 0)
ZEND_ARG_INFO(0, nochdir)
ZEND_ARG_INFO(0, noclose)
ZEND_END_ARG_INFO()
#ifdef HAVE_CPU_AFFINITY
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_setaffinity, 0, 0, 1)
ZEND_ARG_ARRAY_INFO(0, cpu_settings, 0)
ZEND_END_ARG_INFO()
#endif
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_setTimeout, 0, 0, 1)
ZEND_ARG_INFO(0, seconds)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_setBlocking, 0, 0, 1)
ZEND_ARG_INFO(0, blocking)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_useQueue, 0, 0, 0)
ZEND_ARG_INFO(0, key)
ZEND_ARG_INFO(0, mode)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_write, 0, 0, 1)
ZEND_ARG_INFO(0, data)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_read, 0, 0, 0)
ZEND_ARG_INFO(0, size)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_push, 0, 0, 1)
ZEND_ARG_INFO(0, data)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_pop, 0, 0, 0)
ZEND_ARG_INFO(0, size)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_exit, 0, 0, 0)
ZEND_ARG_INFO(0, exit_code)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_exec, 0, 0, 2)
ZEND_ARG_INFO(0, exec_file)
ZEND_ARG_INFO(0, args)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_swoole_process_name, 0, 0, 1)
ZEND_ARG_INFO(0, process_name)
ZEND_END_ARG_INFO()
#define MSGQUEUE_NOWAIT (1 << 8)
static const zend_function_entry swoole_process_methods[] =
{
PHP_ME(swoole_process, __construct, arginfo_swoole_process_construct, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, __destruct, arginfo_swoole_process_void, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, wait, arginfo_swoole_process_wait, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
PHP_ME(swoole_process, signal, arginfo_swoole_process_signal, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
PHP_ME(swoole_process, alarm, arginfo_swoole_process_alarm, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
PHP_ME(swoole_process, kill, arginfo_swoole_process_kill, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
PHP_ME(swoole_process, daemon, arginfo_swoole_process_daemon, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
#ifdef HAVE_CPU_AFFINITY
PHP_ME(swoole_process, setaffinity, arginfo_swoole_process_setaffinity, ZEND_ACC_PUBLIC | ZEND_ACC_STATIC)
#endif
PHP_ME(swoole_process, setTimeout, arginfo_swoole_process_setTimeout, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, setBlocking, arginfo_swoole_process_setBlocking, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, useQueue, arginfo_swoole_process_useQueue, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, statQueue, arginfo_swoole_process_void, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, freeQueue, arginfo_swoole_process_void, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, start, arginfo_swoole_process_void, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, write, arginfo_swoole_process_write, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, close, arginfo_swoole_process_void, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, read, arginfo_swoole_process_read, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, push, arginfo_swoole_process_push, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, pop, arginfo_swoole_process_pop, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, exit, arginfo_swoole_process_exit, ZEND_ACC_PUBLIC)
PHP_ME(swoole_process, exec, arginfo_swoole_process_exec, ZEND_ACC_PUBLIC)
PHP_FALIAS(name, swoole_set_process_name, arginfo_swoole_process_name)
PHP_FE_END
};
void swoole_process_init(int module_number)
{
SWOOLE_INIT_CLASS_ENTRY(swoole_process_ce, "swoole_process", "Swoole\\Process", swoole_process_methods);
swoole_process_class_entry_ptr = zend_register_internal_class(&swoole_process_ce);
SWOOLE_CLASS_ALIAS(swoole_process, "Swoole\\Process");
zend_declare_class_constant_long(swoole_process_class_entry_ptr, ZEND_STRL("IPC_NOWAIT"), MSGQUEUE_NOWAIT);
zend_declare_class_constant_long(swoole_process_class_entry_ptr, ZEND_STRL("PIPE_MASTER"), SW_PIPE_CLOSE_MASTER);
zend_declare_class_constant_long(swoole_process_class_entry_ptr, ZEND_STRL("PIPE_WORKER"), SW_PIPE_CLOSE_WORKER);
zend_declare_class_constant_long(swoole_process_class_entry_ptr, ZEND_STRL("PIPE_READ"), SW_PIPE_CLOSE_READ);
zend_declare_class_constant_long(swoole_process_class_entry_ptr, ZEND_STRL("PIPE_WRITE"), SW_PIPE_CLOSE_WRITE);
bzero(signal_callback, sizeof(signal_callback));
zend_declare_property_null(swoole_process_class_entry_ptr, ZEND_STRL("pipe"), ZEND_ACC_PUBLIC);
zend_declare_property_null(swoole_process_class_entry_ptr, ZEND_STRL("callback"), ZEND_ACC_PUBLIC);
zend_declare_property_null(swoole_process_class_entry_ptr, ZEND_STRL("msgQueueId"), ZEND_ACC_PUBLIC);
zend_declare_property_null(swoole_process_class_entry_ptr, ZEND_STRL("msgQueueKey"), ZEND_ACC_PUBLIC);
zend_declare_property_null(swoole_process_class_entry_ptr, ZEND_STRL("pid"), ZEND_ACC_PUBLIC);
zend_declare_property_null(swoole_process_class_entry_ptr, ZEND_STRL("id"), ZEND_ACC_PUBLIC);
/**
* 31 signal constants
*/
zval *zpcntl;
if (!(zpcntl = zend_hash_str_find(&module_registry, ZEND_STRL("pcntl"))))
{
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("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
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("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);
#endif
REGISTER_LONG_CONSTANT("SIG_IGN", (long) SIG_IGN, CONST_CS | CONST_PERSISTENT);
}
}
static PHP_METHOD(swoole_process, __construct)
{
zend_bool redirect_stdin_and_stdout = 0;
long pipe_type = 2;
zval *callback;
//only cli env
if (!SWOOLE_G(cli))
{
swoole_php_fatal_error(E_ERROR, "swoole_process only can be used in PHP CLI mode.");
RETURN_FALSE;
}
if (SwooleG.serv && SwooleG.serv->gs->start == 1 && swIsMaster())
{
swoole_php_fatal_error(E_ERROR, "swoole_process can't be used in master process.");
RETURN_FALSE;
}
if (SwooleAIO.init)
{
swoole_php_fatal_error(E_ERROR, "unable to create process with async-io threads.");
RETURN_FALSE;
}
if (zend_parse_parameters(ZEND_NUM_ARGS(), "z|bl", &callback, &redirect_stdin_and_stdout, &pipe_type) == FAILURE)
{
RETURN_FALSE;
}
char *func_name = NULL;
if (!sw_zend_is_callable(callback, 0, &func_name))
{
swoole_php_fatal_error(E_ERROR, "function '%s' is not callable", func_name);
efree(func_name);
RETURN_FALSE;
}
efree(func_name);
swWorker *process = emalloc(sizeof(swWorker));
bzero(process, sizeof(swWorker));
int base = 1;
if (SwooleG.serv && SwooleG.serv->gs->start)
{
base = SwooleG.serv->worker_num + SwooleG.serv->task_worker_num + SwooleG.serv->user_worker_num;
}
if (php_swoole_worker_round_id == 0)
{
php_swoole_worker_round_id = base;
}
process->id = php_swoole_worker_round_id++;
if (redirect_stdin_and_stdout)
{
process->redirect_stdin = 1;
process->redirect_stdout = 1;
process->redirect_stderr = 1;
/**
* Forced to use stream pipe
*/
pipe_type = 1;
}
if (pipe_type > 0)
{
swPipe *_pipe = emalloc(sizeof(swPipe));
int socket_type = pipe_type == 1 ? SOCK_STREAM : SOCK_DGRAM;
if (swPipeUnsock_create(_pipe, 1, socket_type) < 0)
{
RETURN_FALSE;
}
process->pipe_object = _pipe;
process->pipe_master = _pipe->getFd(_pipe, SW_PIPE_MASTER);
process->pipe_worker = _pipe->getFd(_pipe, SW_PIPE_WORKER);
process->pipe = process->pipe_master;
zend_update_property_long(swoole_process_class_entry_ptr, getThis(), ZEND_STRL("pipe"), process->pipe_master);
}
swoole_set_object(getThis(), process);
zend_update_property(swoole_process_class_entry_ptr, getThis(), ZEND_STRL("callback"), callback);
}
static PHP_METHOD(swoole_process, __destruct)
{
SW_PREVENT_USER_DESTRUCT;
swWorker *process = swoole_get_object(getThis());
swoole_set_object(getThis(), NULL);
swPipe *_pipe = process->pipe_object;
if (_pipe)
{
_pipe->close(_pipe);
efree(_pipe);
}
if (process->queue)
{
efree(process->queue);
}
efree(process);
}
static PHP_METHOD(swoole_process, wait)
{
int status;
zend_bool blocking = 1;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|b", &blocking) == FAILURE)
{
RETURN_FALSE;
}
int options = 0;
if (!blocking)
{
options |= WNOHANG;
}
pid_t pid = swWaitpid(-1, &status, options);
if (pid > 0)
{
array_init(return_value);
add_assoc_long(return_value, "pid", pid);
add_assoc_long(return_value, "code", WEXITSTATUS(status));
add_assoc_long(return_value, "signal", WTERMSIG(status));
}
else
{
RETURN_FALSE;
}
}
static PHP_METHOD(swoole_process, useQueue)
{
long msgkey = 0;
long mode = 2;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|ll", &msgkey, &mode) == FAILURE)
{
RETURN_FALSE;
}
swWorker *process = swoole_get_object(getThis());
if (msgkey <= 0)
{
msgkey = ftok(zend_get_executed_filename(), 1);
}
swMsgQueue *queue = emalloc(sizeof(swMsgQueue));
if (swMsgQueue_create(queue, 1, msgkey, 0) < 0)
{
RETURN_FALSE;
}
if (mode & MSGQUEUE_NOWAIT)
{
swMsgQueue_set_blocking(queue, 0);
mode = mode & (~MSGQUEUE_NOWAIT);
}
process->queue = queue;
process->ipc_mode = mode;
zend_update_property_long(swoole_process_class_entry_ptr, getThis(), ZEND_STRL("msgQueueId"), queue->msg_id);
zend_update_property_long(swoole_process_class_entry_ptr, getThis(), ZEND_STRL("msgQueueKey"), msgkey);
RETURN_TRUE;
}
static PHP_METHOD(swoole_process, statQueue)
{
swWorker *process = swoole_get_object(getThis());
if (!process->queue)
{
swoole_php_fatal_error(E_WARNING, "no queue, can't get stats of the queue.");
RETURN_FALSE;
}
int queue_num = -1;
int queue_bytes = -1;
if (swMsgQueue_stat(process->queue, &queue_num, &queue_bytes) == 0)
{
array_init(return_value);
add_assoc_long_ex(return_value, ZEND_STRL("queue_num"), queue_num);
add_assoc_long_ex(return_value, ZEND_STRL("queue_bytes"), queue_bytes);
}
else
{
RETURN_FALSE;
}
}
static PHP_METHOD(swoole_process, freeQueue)
{
swWorker *process = swoole_get_object(getThis());
if (process->queue && swMsgQueue_free(process->queue) == SW_OK)
{
efree(process->queue);
process->queue = NULL;
RETURN_TRUE;
}
else
{
RETURN_FALSE;
}
}
static PHP_METHOD(swoole_process, kill)
{
long pid;
long sig = SIGTERM;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|l", &pid, &sig) == FAILURE)
{
RETURN_FALSE;
}
int ret = kill((int) pid, (int) sig);
if (ret < 0)
{
if (!(sig == 0 && errno == ESRCH))
{
swoole_php_error(E_WARNING, "kill(%d, %d) failed. Error: %s[%d]", (int) pid, (int) sig, strerror(errno), errno);
}
RETURN_FALSE;
}
RETURN_TRUE;
}
static PHP_METHOD(swoole_process, signal)
{
zval *callback = NULL;
long signo = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "lz", &signo, &callback) == FAILURE)
{
RETURN_FALSE;
}
if (!SWOOLE_G(cli))
{
swoole_php_fatal_error(E_ERROR, "cannot use swoole_process::signal here.");
RETURN_FALSE;
}
if (signo < 0 || signo >= SW_SIGNO_MAX)
{
swoole_php_fatal_error(E_WARNING, "invalid signal number [%ld].", signo);
RETURN_FALSE;
}
php_swoole_check_reactor();
swSignalHandler handler = swSignal_get_handler(signo);
if (handler && handler != php_swoole_onSignal)
{
swoole_php_fatal_error(E_WARNING, "This signal [%ld] processor has been registered by the system.", signo);
RETURN_FALSE
}
if (callback == NULL || ZVAL_IS_NULL(callback))
{
callback = signal_callback[signo];
if (callback)
{
swSignal_add(signo, NULL);
SwooleG.main_reactor->defer(SwooleG.main_reactor, free_signal_callback, callback);
signal_callback[signo] = NULL;
SwooleG.main_reactor->signal_listener_num--;
RETURN_TRUE;
}
else
{
swoole_php_error(E_WARNING, "no callback.");
RETURN_FALSE;
}
}
else if (Z_TYPE_P(callback) == IS_LONG && Z_LVAL_P(callback) == (long) SIG_IGN)
{
handler = NULL;
}
else
{
char *func_name;
if (!sw_zend_is_callable(callback, 0, &func_name))
{
swoole_php_error(E_WARNING, "function '%s' is not callable", func_name);
efree(func_name);
RETURN_FALSE;
}
efree(func_name);
callback = sw_zval_dup(callback);
Z_TRY_ADDREF_P(callback);
handler = php_swoole_onSignal;
}
/**
* for swSignalfd_setup
*/
SwooleG.main_reactor->check_signalfd = 1;
//free the old callback
if (signal_callback[signo])
{
SwooleG.main_reactor->defer(SwooleG.main_reactor, free_signal_callback, signal_callback[signo]);
}
else
{
SwooleG.main_reactor->signal_listener_num++;
}
signal_callback[signo] = callback;
/**
* use user settings
*/
SwooleG.use_signalfd = SwooleG.enable_signalfd;
swSignal_add(signo, handler);
RETURN_TRUE;
}
static PHP_METHOD(swoole_process, alarm)
{
long usec = 0;
long type = ITIMER_REAL;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l|l", &usec, &type) == FAILURE)
{
RETURN_FALSE;
}
if (!SWOOLE_G(cli))
{
swoole_php_fatal_error(E_ERROR, "cannot use swoole_process::alarm here.");
RETURN_FALSE;
}
if (SwooleG.timer.initialized != 0)
{
swoole_php_fatal_error(E_WARNING, "cannot use both 'timer' and 'alarm' at the same time.");
RETURN_FALSE;
}
struct itimerval timer_set;
bzero(&timer_set, sizeof(timer_set));
if (usec > 0)
{
long _sec = usec / 1000000;
long _usec = usec - (_sec * 1000000);
timer_set.it_interval.tv_sec = _sec;
timer_set.it_interval.tv_usec = _usec;
timer_set.it_value.tv_sec = _sec;
timer_set.it_value.tv_usec = _usec;
if (timer_set.it_value.tv_usec > 1e6)
{
timer_set.it_value.tv_usec = timer_set.it_value.tv_usec - 1e6;
timer_set.it_value.tv_sec += 1;
}
}
if (setitimer(type, &timer_set, NULL) < 0)
{
swoole_php_error(E_WARNING, "setitimer() failed. Error: %s[%d]", strerror(errno), errno);
RETURN_FALSE;
}
RETURN_TRUE;
}
static void free_signal_callback(void* data)
{
zval *callback = (zval*) data;
sw_zval_free(callback);
}
/**
* safe signal
*/
static void php_swoole_onSignal(int signo)
{
zval *retval = NULL;
zval args[1];
zval *callback = signal_callback[signo];
zval *zsigno;
SW_MAKE_STD_ZVAL(zsigno);
ZVAL_LONG(zsigno, signo);
args[0] = *zsigno;
if (sw_call_user_function_ex(EG(function_table), NULL, callback, &retval, 1, args, 0, NULL) == FAILURE)
{
swoole_php_fatal_error(E_WARNING, "user_signal handler error");
}
if (EG(exception))
{
zend_exception_error(EG(exception), E_ERROR);
}
if (retval != NULL)
{
zval_ptr_dtor(retval);
}
zval_ptr_dtor(zsigno);
}
zend_bool php_swoole_signal_isset_handler(int signo)
{
if (signo < 0 || signo >= SW_SIGNO_MAX)
{
swoole_php_fatal_error(E_WARNING, "invalid signal number [%d].", signo);
return SW_FALSE;
}
return signal_callback[signo] != NULL;
}
int php_swoole_process_start(swWorker *process, zval *zobject)
{
process->pipe = process->pipe_worker;
process->pid = getpid();
if (process->redirect_stdin)
{
if (dup2(process->pipe, STDIN_FILENO) < 0)
{
swoole_php_fatal_error(E_WARNING, "dup2() failed. Error: %s[%d]", strerror(errno), errno);
}
}
if (process->redirect_stdout)
{
if (dup2(process->pipe, STDOUT_FILENO) < 0)
{
swoole_php_fatal_error(E_WARNING, "dup2() failed. Error: %s[%d]", strerror(errno), errno);
}
}
if (process->redirect_stderr)
{
if (dup2(process->pipe, STDERR_FILENO) < 0)
{
swoole_php_fatal_error(E_WARNING, "dup2() failed. Error: %s[%d]", strerror(errno), errno);
}
}
/**
* Close EventLoop
*/
if (SwooleG.main_reactor)
{
SwooleG.main_reactor->free(SwooleG.main_reactor);
SwooleG.main_reactor = NULL;
swTraceLog(SW_TRACE_PHP, "destroy reactor");
}
bzero(&SwooleWG, sizeof(SwooleWG));
SwooleG.pid = process->pid;
if (SwooleG.process_type != SW_PROCESS_USERWORKER)
{
SwooleG.process_type = 0;
}
SwooleWG.id = process->id;
if (SwooleG.timer.initialized)
{
swTimer_free(&SwooleG.timer);
bzero(&SwooleG.timer, sizeof(SwooleG.timer));
}
swSignal_clear();
int i;
for(i=0; i<SW_SIGNO_MAX; i++)
{
if (signal_callback[i])
{
sw_zval_free(signal_callback[i]);
signal_callback[i] = NULL;
}
}
zend_update_property_long(swoole_process_class_entry_ptr, zobject, ZEND_STRL("pid"), process->pid);
zend_update_property_long(swoole_process_class_entry_ptr, zobject, ZEND_STRL("pipe"), process->pipe_worker);
zval *zcallback = sw_zend_read_property(swoole_process_class_entry_ptr, zobject, ZEND_STRL("callback"), 0);
zval args[1];
if (zcallback == NULL || ZVAL_IS_NULL(zcallback))
{
swoole_php_fatal_error(E_ERROR, "no callback.");
return SW_ERR;
}
zval *retval = NULL;
args[0] = *zobject;
Z_TRY_ADDREF_P(zobject);
if (sw_call_user_function_ex(EG(function_table), NULL, zcallback, &retval, 1, args, 0, NULL) == FAILURE)
{
swoole_php_fatal_error(E_ERROR, "callback function error");
return SW_ERR;
}
if (EG(exception))
{
zend_exception_error(EG(exception), E_ERROR);
}
if (retval)
{
zval_ptr_dtor(retval);
}
if (SwooleG.main_reactor)
{
php_swoole_event_wait();
}
SwooleG.running = 0;
zend_bailout();
return SW_OK;
}
static PHP_METHOD(swoole_process, start)
{
swWorker *process = swoole_get_object(getThis());
if (process->pid > 0 && kill(process->pid, 0) == 0)
{
swoole_php_fatal_error(E_WARNING, "process has already been started.");
RETURN_FALSE;
}
pid_t pid = fork();
if (pid < 0)
{
swoole_php_fatal_error(E_WARNING, "fork() failed. Error: %s[%d]", strerror(errno), errno);
RETURN_FALSE;
}
else if (pid > 0)
{
process->pid = pid;
process->child_process = 0;
zend_update_property_long(swoole_server_class_entry_ptr, getThis(), ZEND_STRL("pid"), process->pid);
RETURN_LONG(pid);
}
else
{
process->child_process = 1;
SW_CHECK_RETURN(php_swoole_process_start(process, getThis()));
}
RETURN_TRUE;
}
static PHP_METHOD(swoole_process, read)
{
long buf_size = 8192;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|l", &buf_size) == FAILURE)
{
RETURN_FALSE;
}
if (buf_size > 65536)
{
buf_size = 65536;
}
swWorker *process = swoole_get_object(getThis());
if (process->pipe == 0)
{
swoole_php_fatal_error(E_WARNING, "no pipe, can not read from pipe.");
RETURN_FALSE;
}
char *buf = emalloc(buf_size + 1);
int ret = read(process->pipe, buf, buf_size);;
if (ret < 0)
{
efree(buf);
if (errno != EINTR)
{
swoole_php_error(E_WARNING, "read() failed. Error: %s[%d]", strerror(errno), errno);
}
RETURN_FALSE;
}
buf[ret] = 0;
ZVAL_STRINGL(return_value, buf, ret);
efree(buf);
}
static PHP_METHOD(swoole_process, write)
{
char *data = NULL;
size_t data_len = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &data, &data_len) == FAILURE)
{
RETURN_FALSE;
}
if (data_len < 1)
{
swoole_php_fatal_error(E_WARNING, "the data to send is empty.");
RETURN_FALSE;
}
swWorker *process = swoole_get_object(getThis());
if (process->pipe == 0)
{
swoole_php_fatal_error(E_WARNING, "no pipe, can not write into pipe.");
RETURN_FALSE;
}
int ret;
//async write
if (SwooleG.main_reactor)
{
swConnection *_socket = swReactor_get(SwooleG.main_reactor, process->pipe);
if (_socket && _socket->nonblock)
{
ret = SwooleG.main_reactor->write(SwooleG.main_reactor, process->pipe, data, (size_t) data_len);
}
else
{
goto _blocking_read;
}
}
else
{
_blocking_read: ret = swSocket_write_blocking(process->pipe, data, data_len);
}
if (ret < 0)
{
swoole_php_error(E_WARNING, "write() failed. Error: %s[%d]", strerror(errno), errno);
RETURN_FALSE;
}
ZVAL_LONG(return_value, ret);
}
static PHP_METHOD(swoole_process, push)
{
char *data;
size_t length;
struct
{
long type;
char data[SW_MSGMAX];
} message;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "s", &data, &length) == FAILURE)
{
RETURN_FALSE;
}
if (length <= 0)
{
swoole_php_fatal_error(E_WARNING, "the data to push is empty.");
RETURN_FALSE;
}
else if (length >= sizeof(message.data))
{
swoole_php_fatal_error(E_WARNING, "the data to push is too big.");
RETURN_FALSE;
}
swWorker *process = swoole_get_object(getThis());
if (!process->queue)
{
swoole_php_fatal_error(E_WARNING, "no msgqueue, can not use push()");
RETURN_FALSE;
}
message.type = process->id;
memcpy(message.data, data, length);
if (swMsgQueue_push(process->queue, (swQueue_data *)&message, length) < 0)
{
RETURN_FALSE;
}
RETURN_TRUE;
}
static PHP_METHOD(swoole_process, pop)
{
long maxsize = SW_MSGMAX;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|l", &maxsize) == FAILURE)
{
RETURN_FALSE;
}
if (maxsize > SW_MSGMAX || maxsize <= 0)
{
maxsize = SW_MSGMAX;
}
swWorker *process = swoole_get_object(getThis());
if (!process->queue)
{
swoole_php_fatal_error(E_WARNING, "no msgqueue, can not use pop()");
RETURN_FALSE;
}
struct
{
long type;
char data[SW_MSGMAX];
} message;
if (process->ipc_mode == 2)
{
message.type = 0;
}
else
{
message.type = process->id;
}
int n = swMsgQueue_pop(process->queue, (swQueue_data *) &message, maxsize);
if (n < 0)
{
RETURN_FALSE;
}
RETURN_STRINGL(message.data, n);
}
static PHP_METHOD(swoole_process, exec)
{
char *execfile = NULL;
size_t execfile_len = 0;
zval *args;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "sa", &execfile, &execfile_len, &args) == FAILURE)
{
RETURN_FALSE;
}
if (execfile_len < 1)
{
swoole_php_fatal_error(E_WARNING, "exec file name is empty.");
RETURN_FALSE;
}
int exec_argc = php_swoole_array_length(args);
char **exec_args = emalloc(sizeof(char*) * (exec_argc + 2));
zval *value = NULL;
exec_args[0] = sw_strdup(execfile);
int i = 1;
SW_HASHTABLE_FOREACH_START(Z_ARRVAL_P(args), value)
convert_to_string(value);
Z_TRY_ADDREF_P(value);
exec_args[i] = Z_STRVAL_P(value);