[PATCH] ext/sysvmsg: msg_queue_exists()

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)