Imported from /home/lorry/working-area/delta_php2/php-5.4.13.tar.bz2.HEADphp-5.4.13master

1 files changed, 250 insertions, 0 deletions

diff --git a/Zend/zend_extensions.c b/Zend/zend_extensions.c
new file mode 100644
index 0000000..2dd7cd4
--- /dev/null
+++ b/Zend/zend_extensions.c
@@ -0,0 +1,250 @@
+/*
+   +----------------------------------------------------------------------+
+   | Zend Engine                                                          |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1998-2013 Zend Technologies Ltd. (http://www.zend.com) |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 2.00 of the Zend 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.zend.com/license/2_00.txt.                                |
+   | If you did not receive a copy of the Zend license and are unable to  |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@zend.com so we can mail you a copy immediately.              |
+   +----------------------------------------------------------------------+
+   | Authors: Andi Gutmans <andi@zend.com>                                |
+   |          Zeev Suraski <zeev@zend.com>                                |
+   +----------------------------------------------------------------------+
+*/
+
+/* $Id$ */
+
+#include "zend_extensions.h"
+
+ZEND_API zend_llist zend_extensions;
+static int last_resource_number;
+
+int zend_load_extension(const char *path)
+{
+#if ZEND_EXTENSIONS_SUPPORT
+	DL_HANDLE handle;
+	zend_extension *new_extension;
+	zend_extension_version_info *extension_version_info;
+
+	handle = DL_LOAD(path);
+	if (!handle) {
+#ifndef ZEND_WIN32
+		fprintf(stderr, "Failed loading %s:  %s\n", path, DL_ERROR());
+/* See http://support.microsoft.com/kb/190351 */
+#ifdef PHP_WIN32
+		fflush(stderr);
+#endif
+#else
+		fprintf(stderr, "Failed loading %s\n", path);
+#endif
+		return FAILURE;
+	}
+
+	extension_version_info = (zend_extension_version_info *) DL_FETCH_SYMBOL(handle, "extension_version_info");
+	if (!extension_version_info) {
+		extension_version_info = (zend_extension_version_info *) DL_FETCH_SYMBOL(handle, "_extension_version_info");
+	}
+	new_extension = (zend_extension *) DL_FETCH_SYMBOL(handle, "zend_extension_entry");
+	if (!new_extension) {
+		new_extension = (zend_extension *) DL_FETCH_SYMBOL(handle, "_zend_extension_entry");
+	}
+	if (!extension_version_info || !new_extension) {
+		fprintf(stderr, "%s doesn't appear to be a valid Zend extension\n", path);
+/* See http://support.microsoft.com/kb/190351 */
+#ifdef PHP_WIN32
+		fflush(stderr);
+#endif
+		DL_UNLOAD(handle);
+		return FAILURE;
+	}
+
+
+	/* allow extension to proclaim compatibility with any Zend version */
+	if (extension_version_info->zend_extension_api_no != ZEND_EXTENSION_API_NO &&(!new_extension->api_no_check || new_extension->api_no_check(ZEND_EXTENSION_API_NO) != SUCCESS)) {
+		if (extension_version_info->zend_extension_api_no > ZEND_EXTENSION_API_NO) {
+			fprintf(stderr, "%s requires Zend Engine API version %d.\n"
+					"The Zend Engine API version %d which is installed, is outdated.\n\n",
+					new_extension->name,
+					extension_version_info->zend_extension_api_no,
+					ZEND_EXTENSION_API_NO);
+/* See http://support.microsoft.com/kb/190351 */
+#ifdef PHP_WIN32
+			fflush(stderr);
+#endif
+			DL_UNLOAD(handle);
+			return FAILURE;
+		} else if (extension_version_info->zend_extension_api_no < ZEND_EXTENSION_API_NO) {
+			fprintf(stderr, "%s requires Zend Engine API version %d.\n"
+					"The Zend Engine API version %d which is installed, is newer.\n"
+					"Contact %s at %s for a later version of %s.\n\n",
+					new_extension->name,
+					extension_version_info->zend_extension_api_no,
+					ZEND_EXTENSION_API_NO,
+					new_extension->author,
+					new_extension->URL,
+					new_extension->name);
+/* See http://support.microsoft.com/kb/190351 */
+#ifdef PHP_WIN32
+			fflush(stderr);
+#endif
+			DL_UNLOAD(handle);
+			return FAILURE;
+		}
+	} else if (strcmp(ZEND_EXTENSION_BUILD_ID, extension_version_info->build_id) &&
+	           (!new_extension->build_id_check || new_extension->build_id_check(ZEND_EXTENSION_BUILD_ID) != SUCCESS)) {
+		fprintf(stderr, "Cannot load %s - it was built with configuration %s, whereas running engine is %s\n",
+					new_extension->name, extension_version_info->build_id, ZEND_EXTENSION_BUILD_ID);
+/* See http://support.microsoft.com/kb/190351 */
+#ifdef PHP_WIN32
+		fflush(stderr);
+#endif
+		DL_UNLOAD(handle);
+		return FAILURE;
+	}
+
+	return zend_register_extension(new_extension, handle);
+#else
+	fprintf(stderr, "Extensions are not supported on this platform.\n");
+/* See http://support.microsoft.com/kb/190351 */
+#ifdef PHP_WIN32
+	fflush(stderr);
+#endif
+	return FAILURE;
+#endif
+}
+
+
+int zend_register_extension(zend_extension *new_extension, DL_HANDLE handle)
+{
+#if ZEND_EXTENSIONS_SUPPORT
+	zend_extension extension;
+
+	extension = *new_extension;
+	extension.handle = handle;
+
+	zend_extension_dispatch_message(ZEND_EXTMSG_NEW_EXTENSION, &extension);
+
+	zend_llist_add_element(&zend_extensions, &extension);
+
+	/*fprintf(stderr, "Loaded %s, version %s\n", extension.name, extension.version);*/
+#endif
+
+	return SUCCESS;
+}
+
+
+static void zend_extension_shutdown(zend_extension *extension TSRMLS_DC)
+{
+#if ZEND_EXTENSIONS_SUPPORT
+	if (extension->shutdown) {
+		extension->shutdown(extension);
+	}
+#endif
+}
+
+static int zend_extension_startup(zend_extension *extension)
+{
+#if ZEND_EXTENSIONS_SUPPORT
+	if (extension->startup) {
+		if (extension->startup(extension)!=SUCCESS) {
+			return 1;
+		}
+		zend_append_version_info(extension);
+	}
+#endif
+	return 0;
+}
+
+
+int zend_startup_extensions_mechanism()
+{
+	/* Startup extensions mechanism */
+	zend_llist_init(&zend_extensions, sizeof(zend_extension), (void (*)(void *)) zend_extension_dtor, 1);
+	last_resource_number = 0;
+	return SUCCESS;
+}
+
+
+int zend_startup_extensions()
+{
+	zend_llist_apply_with_del(&zend_extensions, (int (*)(void *)) zend_extension_startup);
+	return SUCCESS;
+}
+
+
+void zend_shutdown_extensions(TSRMLS_D)
+{
+	zend_llist_apply(&zend_extensions, (llist_apply_func_t) zend_extension_shutdown TSRMLS_CC);
+	zend_llist_destroy(&zend_extensions);
+}
+
+
+void zend_extension_dtor(zend_extension *extension)
+{
+#if ZEND_EXTENSIONS_SUPPORT && !ZEND_DEBUG
+	if (extension->handle) {
+		DL_UNLOAD(extension->handle);
+	}
+#endif
+}
+
+
+static void zend_extension_message_dispatcher(const zend_extension *extension, int num_args, va_list args TSRMLS_DC)
+{
+	int message;
+	void *arg;
+
+	if (!extension->message_handler || num_args!=2) {
+		return;
+	}
+	message = va_arg(args, int);
+	arg = va_arg(args, void *);
+	extension->message_handler(message, arg);
+}
+
+
+ZEND_API void zend_extension_dispatch_message(int message, void *arg)
+{
+	TSRMLS_FETCH();
+
+	zend_llist_apply_with_arguments(&zend_extensions, (llist_apply_with_args_func_t) zend_extension_message_dispatcher TSRMLS_CC, 2, message, arg);
+}
+
+
+ZEND_API int zend_get_resource_handle(zend_extension *extension)
+{
+	if (last_resource_number<ZEND_MAX_RESERVED_RESOURCES) {
+		extension->resource_number = last_resource_number;
+		return last_resource_number++;
+	} else {
+		return -1;
+	}
+}
+
+
+ZEND_API zend_extension *zend_get_extension(const char *extension_name)
+{
+	zend_llist_element *element;
+
+	for (element = zend_extensions.head; element; element = element->next) {
+		zend_extension *extension = (zend_extension *) element->data;
+
+		if (!strcmp(extension->name, extension_name)) {
+			return extension;
+		}
+	}
+	return NULL;
+}
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * indent-tabs-mode: t
+ * End:
+ */