refactor: fall back to more simpler trick
git-svn-id: svn://svn.lighttpd.net/xcache/trunk@1047 c26eb9a1-5813-0410-bd6c-c2e55f420ca7
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a122428ae4
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@ -3253,7 +3253,7 @@ static PHP_MINIT_FUNCTION(xcache_cacher) /* {{{ */
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REGISTER_INI_ENTRIES();
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xc_sandbox_module_init(module_number TSRMLS_CC);
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return xcache_zend_extension_prepend(&xc_cacher_zend_extension_entry);
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return xcache_zend_extension_add(&xc_cacher_zend_extension_entry, 0);
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err_init:
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return FAILURE;
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@ -670,7 +670,7 @@ static PHP_MINIT_FUNCTION(xcache_coverager) /* {{{ */
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}
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}
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return xcache_zend_extension_prepend(&xc_coverager_zend_extension_entry);
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return xcache_zend_extension_add(&xc_coverager_zend_extension_entry, 0);
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}
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/* }}} */
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static PHP_MSHUTDOWN_FUNCTION(xcache_coverager) /* {{{ */
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@ -666,7 +666,7 @@ static PHP_MINFO_FUNCTION(xcache_optimizer) /* {{{ */
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static PHP_MINIT_FUNCTION(xcache_optimizer) /* {{{ */
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{
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REGISTER_INI_ENTRIES();
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return xcache_zend_extension_prepend(&xc_optimizer_zend_extension_entry);
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return xcache_zend_extension_add(&xc_optimizer_zend_extension_entry, 0);
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}
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/* }}} */
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static PHP_MSHUTDOWN_FUNCTION(xcache_optimizer) /* {{{ */
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115
xcache.c
115
xcache.c
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@ -542,55 +542,81 @@ static void xcache_signal_handler(int sig) /* {{{ */
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/* }}} */
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#endif
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static startup_func_t xc_last_ext_old_startup;
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static xc_stack_t xc_llist_zend_extensions; /* (zend_extension *) */
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static int xc_zend_startup_last_hook(zend_extension *extension) /* {{{ */
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/* {{{ incompatible zend extensions handling */
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typedef struct {
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const char *name;
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startup_func_t old_startup;
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} xc_incompatible_zend_extension_info_t;
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static xc_incompatible_zend_extension_info_t xc_incompatible_zend_extensions[] = {
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{ "Zend Optimizer", NULL }
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};
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static xc_incompatible_zend_extension_info_t *xc_get_incompatible_zend_extension_info(const char *name)
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{
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zend_extension *ext = zend_get_extension(XCACHE_NAME);
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if (ext) {
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zend_error(E_WARNING, "Module '" XCACHE_NAME "' already loaded");
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}
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/* restore */
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extension->startup = xc_last_ext_old_startup;
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extension->startup = xc_last_ext_old_startup;
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xc_last_ext_old_startup = NULL;
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if (extension->startup) {
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if (extension->startup(extension) != SUCCESS) {
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return FAILURE;
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size_t i;
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for (i = 0; i < sizeof(xc_incompatible_zend_extensions) / sizeof(xc_incompatible_zend_extensions[0]); ++i) {
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xc_incompatible_zend_extension_info_t *incompatible_zend_extension_info = &xc_incompatible_zend_extensions[i];
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if (strcmp(incompatible_zend_extension_info->name, name) == 0) {
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return incompatible_zend_extension_info;
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}
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}
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assert(xc_stack_count(&xc_llist_zend_extensions));
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while (xc_stack_count(&xc_llist_zend_extensions)) {
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zend_llist_element *p = (zend_llist_element *) xc_stack_pop(&xc_llist_zend_extensions);
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xcache_llist_prepend(&zend_extensions, p);
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return NULL;
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}
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/* }}} */
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static int xc_incompatible_zend_extension_startup_hook(zend_extension *extension) /* {{{ */
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{
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xc_incompatible_zend_extension_info_t *incompatible_zend_extension_info = xc_get_incompatible_zend_extension_info(extension->name);
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int status;
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zend_bool catched = 0;
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zend_llist old_zend_extensions = zend_extensions;
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TSRMLS_FETCH();
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/* hide all extensions from it */
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zend_extensions.head = NULL;
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zend_extensions.count = 0;
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/* restore */
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extension->startup = incompatible_zend_extension_info->old_startup;
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incompatible_zend_extension_info->old_startup = NULL;
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assert(extension->startup);
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zend_try {
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status = extension->startup(extension);
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} zend_catch {
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catched = 1;
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} zend_end_try();
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zend_extensions = old_zend_extensions;
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if (catched) {
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zend_bailout();
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}
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xc_stack_destroy(&xc_llist_zend_extensions);
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return SUCCESS;
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return status;
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}
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/* }}} */
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static int xc_zend_startup(zend_extension *extension) /* {{{ */
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{
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zend_llist_position lpos;
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zend_extension *ext;
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ext = (zend_extension *) zend_extensions.head->data;
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if (strcmp(ext->name, XCACHE_NAME) != 0) {
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zend_error(E_WARNING, "XCache failed to load itself as the before \"%s\". compatibility downgraded", ext->name);
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}
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old_compile_file = zend_compile_file;
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zend_compile_file = xc_check_initial_compile_file;
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if (1 || xcache_zend_extension_count_by_prefix(&zend_extensions, XCACHE_NAME) != zend_llist_count(&zend_extensions)) {
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zend_llist_position lpos;
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zend_extension *ext = (zend_extension *) zend_extensions.head->data;
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assert(ext);
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if (strcmp(ext->name, XCACHE_NAME) != 0) {
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zend_error(E_WARNING, "XCache failed to load itself as the before \"%s\". compatibility downgraded", ext->name);
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for (ext = (zend_extension *) zend_llist_get_first_ex(&zend_extensions, &lpos);
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ext;
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ext = (zend_extension *) zend_llist_get_next_ex(&zend_extensions, &lpos)) {
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xc_incompatible_zend_extension_info_t *incompatible_zend_extension_info = xc_get_incompatible_zend_extension_info(extension->name);
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if (incompatible_zend_extension_info) {
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assert(!incompatible_zend_extension_info->old_startup);
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incompatible_zend_extension_info->old_startup = ext->startup;
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ext->startup = xc_incompatible_zend_extension_startup_hook;
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}
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/* hide XCache modules */
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xc_stack_init(&xc_llist_zend_extensions);
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xcache_zend_extension_unlink_by_prefix(&xc_llist_zend_extensions, &zend_extensions, XCACHE_NAME);
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ext = (zend_extension *) zend_llist_get_last_ex(&zend_extensions, &lpos);
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assert(ext);
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xc_last_ext_old_startup = ext->startup;
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ext->startup = xc_zend_startup_last_hook;
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}
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return SUCCESS;
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}
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@ -656,21 +682,20 @@ static PHP_MINIT_FUNCTION(xcache) /* {{{ */
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xc_init_constant(module_number TSRMLS_CC);
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xc_shm_init_modules();
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/* ZendExtension is registered in reverse order for prepend by XCache */
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/* must be the first */
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xcache_zend_extension_add(&xc_zend_extension_entry, 1);
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#ifdef HAVE_XCACHE_OPTIMIZER
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xc_optimizer_startup_module();
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#endif
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#ifdef HAVE_XCACHE_CACHER
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xc_cacher_startup_module();
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#endif
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#ifdef HAVE_XCACHE_COVERAGER
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xc_coverager_startup_module();
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#endif
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#ifdef HAVE_XCACHE_DISASSEMBLER
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xc_disassembler_startup_module();
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#endif
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#ifdef HAVE_XCACHE_CACHER
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xc_cacher_startup_module();
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#endif
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#ifdef HAVE_XCACHE_OPTIMIZER
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xc_optimizer_startup_module();
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#endif
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/* must be the first */
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xcache_zend_extension_prepend(&xc_zend_extension_entry);
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return SUCCESS;
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@ -4,7 +4,7 @@
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#include "util/xc_trace.h"
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int xcache_zend_extension_prepend(zend_extension *new_extension) /* {{{ */
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int xcache_zend_extension_add(zend_extension *new_extension, zend_bool prepend) /* {{{ */
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{
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zend_extension extension;
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@ -13,8 +13,13 @@ int xcache_zend_extension_prepend(zend_extension *new_extension) /* {{{ */
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zend_extension_dispatch_message(ZEND_EXTMSG_NEW_EXTENSION, &extension);
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zend_llist_prepend_element(&zend_extensions, &extension);
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TRACE("%s", "prepended");
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if (prepend) {
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zend_llist_prepend_element(&zend_extensions, &extension);
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}
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else {
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zend_llist_add_element(&zend_extensions, &extension);
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}
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TRACE("%s", "registered");
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return SUCCESS;
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}
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/* }}} */
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@ -50,44 +55,6 @@ int xcache_zend_extension_remove(zend_extension *extension) /* {{{ */
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}
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/* }}} */
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int xcache_zend_extension_count_by_prefix(zend_llist *l, const char *extension_name_prefix) /* {{{ */
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{
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zend_llist_element *element;
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size_t n = strlen(extension_name_prefix);
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int count = 0;
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for (element = zend_extensions.head; element; element = element->next) {
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zend_extension *extension = (zend_extension *) element->data;
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if (strncmp(extension->name, extension_name_prefix, n) == 0) {
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++count;
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}
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}
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return count;
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}
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/* }}} */
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void xcache_zend_extension_unlink_by_prefix(xc_stack_t *linked, zend_llist *l, const char *extension_name_prefix) /* {{{ */
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{
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size_t n = strlen(extension_name_prefix);
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zend_llist_element *unlinked = NULL;
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zend_llist_element *element, *next;
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for (element = zend_extensions.head; element; element = next) {
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zend_extension *extension = (zend_extension *) element->data;
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next = element->next;
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if (strncmp(extension->name, extension_name_prefix, n) == 0) {
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xcache_llist_unlink(l, element);
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xc_stack_push(linked, element);
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}
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}
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for (element = zend_extensions.head; element; element = next) {
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zend_extension *extension = (zend_extension *) element->data;
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next = element->next;
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}
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}
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/* }}} */
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void xcache_llist_prepend(zend_llist *l, zend_llist_element *element) /* {{{ */
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{
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element->next = l->head;
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@ -7,10 +7,8 @@
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#include "util/xc_stack.h"
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#include "zend_extensions.h"
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int xcache_zend_extension_prepend(zend_extension *new_extension);
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int xcache_zend_extension_add(zend_extension *new_extension, zend_bool prepend);
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int xcache_zend_extension_remove(zend_extension *extension);
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int xcache_zend_extension_count_by_prefix(zend_llist *l, const char *extension_name_prefix);
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void xcache_zend_extension_unlink_by_prefix(xc_stack_t *unlinked, zend_llist *l, const char *extension_name_prefix);
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void xcache_llist_prepend(zend_llist *l, zend_llist_element *element);
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void xcache_llist_unlink(zend_llist *l, zend_llist_element *element);
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