From: Johannes Schlüter <johannes@php.net>
Date: Tue, 20 Nov 2007 21:25:10 +0000 (+0000)
Subject: MFH: Add msg_queue_exists() function (Benjamin Schulz) [DOC]
X-Git-Tag: RELEASE_1_3_1~607
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=611a56fababe4a74297161b1827c13c0a1c67846;p=php

MFH: Add msg_queue_exists() function (Benjamin Schulz) [DOC]
---

diff --git a/NEWS b/NEWS
index 35a4ab7ec3..be25ce2d99 100644
--- a/NEWS
+++ b/NEWS
@@ -1,6 +1,7 @@
 PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? 20??, PHP 5.3.0
+- Added msg_queue_exists() function (Benjamin Schulz)
 - Added 3 Firebird specific attributes that can be set via PDO::setAttribute()
   to control formatting of date/timestamp columns: PDO::FB_ATTR_DATE_FORMAT,
   PDO::FB_ATTR_TIME_FORMAT and PDO::FB_ATTR_TIMESTAMP_FORMAT. 
diff --git a/ext/sysvmsg/php_sysvmsg.h b/ext/sysvmsg/php_sysvmsg.h
index 70be76720a..d98edd4da1 100644
--- a/ext/sysvmsg/php_sysvmsg.h
+++ b/ext/sysvmsg/php_sysvmsg.h
@@ -48,6 +48,7 @@ PHP_FUNCTION(msg_stat_queue);
 PHP_FUNCTION(msg_set_queue);
 PHP_FUNCTION(msg_send);
 PHP_FUNCTION(msg_receive);
+PHP_FUNCTION(msg_queue_exists);
 
 typedef struct {
 	key_t key;
diff --git a/ext/sysvmsg/sysvmsg.c b/ext/sysvmsg/sysvmsg.c
index 7ab5b387f2..778f275ccc 100644
--- a/ext/sysvmsg/sysvmsg.c
+++ b/ext/sysvmsg/sysvmsg.c
@@ -72,6 +72,7 @@ const zend_function_entry sysvmsg_functions[] = {
 	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 @@ PHP_FUNCTION(msg_stat_queue)
 }
 /* }}} */
 
+
+/* {{{ 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)
diff --git a/ext/sysvmsg/tests/003.phpt b/ext/sysvmsg/tests/003.phpt
new file mode 100644
index 0000000000..66ff046dd0
--- /dev/null
+++ b/ext/sysvmsg/tests/003.phpt
@@ -0,0 +1,25 @@
+--TEST--
+msg_queue_exists()
+--SKIPIF--
+<?php if (!extension_loaded("sysvmsg")) die("skip sysvmsg extension is not available")?>
+--FILE--
+<?php
+$id = ftok(__FILE__, 'r');
+
+msg_remove_queue(msg_get_queue($id, 0600));
+
+var_dump(msg_queue_exists($id));
+$res = msg_get_queue($id, 0600);
+var_dump($res);
+var_dump(msg_queue_exists($id));
+var_dump(msg_remove_queue($res));
+var_dump(msg_queue_exists($id));
+echo "Done\n";
+?>
+--EXPECTF--
+bool(false)
+resource(%d) of type (sysvmsg queue)
+bool(true)
+bool(true)
+bool(false)
+Done