mirror of
https://github.com/php/php-src.git
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342c6e0b23
* updated alloc_persist to use critical sections * changed extension shutdown to two-phase * updated dependencies * PR support (don't remember if there was any really)
137 lines
4.0 KiB
C
137 lines
4.0 KiB
C
/*
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+----------------------------------------------------------------------+
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| Zend Engine |
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+----------------------------------------------------------------------+
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| Copyright (c) 1998, 1999 Andi Gutmans, Zeev Suraski |
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+----------------------------------------------------------------------+
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| This source file is subject to the Zend license, that is bundled |
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| with this package in the file LICENSE. If you did not receive a |
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| copy of the Zend license, please mail us at zend@zend.com so we can |
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| send you a copy immediately. |
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+----------------------------------------------------------------------+
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| Authors: Andi Gutmans <andi@zend.com> |
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| Zeev Suraski <zeev@zend.com> |
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+----------------------------------------------------------------------+
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*/
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#include "zend_extensions.h"
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ZEND_API zend_llist zend_extensions;
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static int last_resource_number;
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int zend_load_extensions(char **extension_paths)
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{
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char **p = extension_paths;
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if (!p) {
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return SUCCESS;
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}
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while (*p) {
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if (zend_load_extension(*p)==FAILURE) {
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return FAILURE;
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}
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p++;
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}
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return SUCCESS;
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}
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int zend_load_extension(char *path)
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{
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#if ZEND_EXTENSIONS_SUPPORT
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DL_HANDLE handle;
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zend_extension extension, *new_extension;
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zend_extension_version_info *extension_version_info;
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handle = DL_LOAD(path);
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if (!handle) {
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zend_printf("Failed loading %s\n", path);
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return FAILURE;
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}
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extension_version_info = (zend_extension_version_info *) DL_FETCH_SYMBOL(handle, "extension_version_info");
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new_extension = (zend_extension *) DL_FETCH_SYMBOL(handle, "zend_extension_entry");
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if (!extension_version_info || !new_extension) {
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zend_printf("%s doesn't appear to be a valid Zend extension\n", path);
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return FAILURE;
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}
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if (extension_version_info->zend_extension_api_no > ZEND_EXTENSION_API_NO) {
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zend_printf("%s requires Zend version %s or later\n"
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"Current version %s, API version %d\n",
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new_extension->name,
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extension_version_info->required_zend_version,
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ZEND_VERSION,
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ZEND_EXTENSION_API_NO);
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return FAILURE;
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} else if (extension_version_info->zend_extension_api_no < ZEND_EXTENSION_API_NO) {
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/* we may be able to allow for downwards compatability in some harmless cases. */
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zend_printf("%s is outdated (API version %d, current version %d)\n"
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"Contact %s at %s for a later version of this module.\n",
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new_extension->name,
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extension_version_info->zend_extension_api_no,
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ZEND_EXTENSION_API_NO,
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new_extension->author,
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new_extension->URL);
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return FAILURE;
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} else if (ZTS_V!=extension_version_info->thread_safe) {
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zend_printf("Cannot load %s - it %s thread safe, whereas Zend %s\n",
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new_extension->name,
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(extension_version_info->thread_safe?"is":"isn't"),
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(ZTS_V?"is":"isn't"));
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return FAILURE;
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}
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if (new_extension->startup) {
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new_extension->startup(new_extension);
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}
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extension = *new_extension;
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extension.handle = handle;
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zend_llist_add_element(&zend_extensions, &extension);
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/*zend_printf("Loaded %s, version %s\n", extension.name, extension.version);*/
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zend_append_version_info(&extension);
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return SUCCESS;
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#else
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zend_printf("Extensions are not supported on this platform.\n");
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return FAILURE
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#endif
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}
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static void zend_extension_shutdown(zend_extension *extension)
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{
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#if ZEND_EXTENSIONS_SUPPORT
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if (extension->shutdown) {
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extension->shutdown(extension);
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}
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#endif
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}
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void zend_shutdown_extensions()
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{
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zend_llist_apply(&zend_extensions, (void (*)(void *)) zend_extension_shutdown);
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zend_llist_destroy(&zend_extensions);
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}
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void zend_extension_dtor(zend_extension *extension)
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{
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#if ZEND_EXTENSIONS_SUPPORT
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DL_UNLOAD(extension->handle);
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#endif
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}
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ZEND_API int zend_get_resource_handle(zend_extension *extension)
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{
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if (last_resource_number<4) {
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extension->resource_number = last_resource_number;
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return last_resource_number;
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} else {
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return -1;
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}
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}
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