MFT: closes #337: adds warning about Zend OPcache optimization level incompatiblity

git-svn-id: svn://svn.lighttpd.net/xcache/branches/3.2@1535 c26eb9a1-5813-0410-bd6c-c2e55f420ca7

ChangeLog

@@ -4,6 +4,7 @@ ChangeLog
  * cacher:
    * PHP_5_6 support
    * fixed #333: reduce memory usage for small or empty files
+   * closes #337: adds warning about Zend OPcache optimization level incompatiblity
 
 3.1.1 2014-09-02
 ChangeLog

NEWS

@@ -2,6 +2,7 @@
 ========
  * PHP_5_6 support
  * reduce memory usage for small or empty files
+ * aware of Zend OPcache
 
 3.1.1 2014-09-02
 ========

mod_cacher/xc_cacher.c

@@ -3693,9 +3693,21 @@ static PHP_MINIT_FUNCTION(xcache_cacher) /* {{{ */
 
 	ext = zend_get_extension("Zend Optimizer");
 	if (ext) {
-		/* zend_optimizer.optimization_level>0 is not compatible with other cacher, disabling */
+		char *value;
+		if (cfg_get_string("zend_optimizer.optimization_level", &value) == SUCCESS && zend_atol(value, strlen(value)) > 0) {
+			zend_error(E_NOTICE, "Zend Optimizer with zend_optimizer.optimization_level>0 is not compatible with other cacher, disabling");
+		}
 		ext->op_array_handler = NULL;
 	}
+
+	ext = zend_get_extension("Zend OPcache");
+	if (ext) {
+		char *value;
+		if (cfg_get_string("opcache.optimization_level", &value) == SUCCESS && zend_atol(value, strlen(value)) > 0) {
+			zend_error(E_WARNING, "Constant folding feature in Zend OPcache is not compatible with XCache's __DIR__ handling, please set opcache.optimization_level=0 or disable Zend OPcache");
+		}
+	}
+
 	/* cache if there's an op_array_ctor */
 	for (ext = zend_llist_get_first_ex(&zend_extensions, &lpos);
 			ext;