Hi Wez,
this patch that adds a msg_queue_exists() to ext/sysvmsg. Currently
there is no way to tell wether msg_get_queue() will create or just a
attach to a queue.
It would be great to see this function in the next PHP release.
Benjamin
diff -u php-5.2.1/ext/sysvmsg/php_sysvmsg.h
php-5.2.1-patched/ext/sysvmsg/php_sysvmsg.h
--- php-5.2.1/ext/sysvmsg/php_sysvmsg.h 2007-01-08 23:34:07.000000000 +0100
+++ php-5.2.1-patched/ext/sysvmsg/php_sysvmsg.h 2007-03-01 15:51:28.000000000
+0100
@@ -48,6 +48,7 @@
PHP_FUNCTION(msg_set_queue);
PHP_FUNCTION(msg_send);
PHP_FUNCTION(msg_receive);
+PHP_FUNCTION(msg_queue_exists);
typedef struct {
key_t key;
diff -u php-5.2.1/ext/sysvmsg/sysvmsg.c php-5.2.1-patched/ext/sysvmsg/sysvmsg.c
--- php-5.2.1/ext/sysvmsg/sysvmsg.c 2007-01-17 09:25:32.000000000 +0100
+++ php-5.2.1-patched/ext/sysvmsg/sysvmsg.c 2007-03-01 15:51:28.000000000
+0100
@@ -72,6 +72,7 @@
PHP_FE(msg_remove_queue, NULL)
PHP_FE(msg_stat_queue, NULL)
PHP_FE(msg_set_queue, NULL)
+ PHP_FE(msg_queue_exists, NULL)
{NULL, NULL, NULL} /* Must be the last line in sysvmsg_functions[]
*/
};
/* }}} */
@@ -206,6 +207,26 @@
}
/* }}} */
+
+/* {{{ proto bool msg_queue_exists(int key)
+ Check wether a message queue exists */
+PHP_FUNCTION(msg_queue_exists)
+{
+ long key;
+
+ if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &key) ==
FAILURE) {
+ return;
+ }
+
+ if (msgget(key, 0) < 0) {
+ RETURN_FALSE;
+ }
+
+ RETURN_TRUE;
+}
+/* }}} */
+
+
/* {{{ proto resource msg_get_queue(int key [, int perms])
Attach to a message queue */
PHP_FUNCTION(msg_get_queue)
--
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