Changeset 1047 in svn for trunk/xcache.c

Timestamp:

2012-07-25T10:56:27Z (7 years ago)

Author:

Xuefer

Message:

refactor: fall back to more simpler trick

File:

• trunk/xcache.c (modified) (3 diffs)

trunk/xcache.c

@@ -543 +543 @@
 #endif
 
-static startup_func_t xc_last_ext_old_startup;
-static xc_stack_t xc_llist_zend_extensions; /* (zend_extension *) */
-static int xc_zend_startup_last_hook(zend_extension *extension) /* {{{ */
-{
-    zend_extension *ext = zend_get_extension(XCACHE_NAME);
-    if (ext) {
-        zend_error(E_WARNING, "Module '" XCACHE_NAME "' already loaded");
-    }
+/* {{{ incompatible zend extensions handling */
+typedef struct {
+    const char *name;
+    startup_func_t old_startup;
+} xc_incompatible_zend_extension_info_t;
+static xc_incompatible_zend_extension_info_t xc_incompatible_zend_extensions[] = {
+    { "Zend Optimizer", NULL }
+};
+
+static xc_incompatible_zend_extension_info_t *xc_get_incompatible_zend_extension_info(const char *name)
+{
+    size_t i;
+
+    for (i = 0; i < sizeof(xc_incompatible_zend_extensions) / sizeof(xc_incompatible_zend_extensions[0]); ++i) {
+        xc_incompatible_zend_extension_info_t *incompatible_zend_extension_info = &xc_incompatible_zend_extensions[i];
+        if (strcmp(incompatible_zend_extension_info->name, name) == 0) {
+            return incompatible_zend_extension_info;
+        }
+    }
+
+    return NULL;
+}
+/* }}} */
+static int xc_incompatible_zend_extension_startup_hook(zend_extension *extension) /* {{{ */
+{
+    xc_incompatible_zend_extension_info_t *incompatible_zend_extension_info = xc_get_incompatible_zend_extension_info(extension->name);
+    int status;
+    zend_bool catched = 0;
+    zend_llist old_zend_extensions = zend_extensions;
+    TSRMLS_FETCH();
+
+    /* hide all extensions from it */
+    zend_extensions.head = NULL;
+    zend_extensions.count = 0;
+
     /* restore */
-    extension->startup = xc_last_ext_old_startup;
-    extension->startup = xc_last_ext_old_startup;
-    xc_last_ext_old_startup = NULL;
-    if (extension->startup) {
-        if (extension->startup(extension) != SUCCESS) {
-            return FAILURE;
-        }
-    }
-
-    assert(xc_stack_count(&xc_llist_zend_extensions));
-    while (xc_stack_count(&xc_llist_zend_extensions)) {
-        zend_llist_element *p = (zend_llist_element *) xc_stack_pop(&xc_llist_zend_extensions);
-        xcache_llist_prepend(&zend_extensions, p);
-    }
-    xc_stack_destroy(&xc_llist_zend_extensions);
-    return SUCCESS;
+    extension->startup = incompatible_zend_extension_info->old_startup;
+    incompatible_zend_extension_info->old_startup = NULL;
+    assert(extension->startup);
+
+    zend_try {
+        status = extension->startup(extension);
+    } zend_catch {
+        catched = 1;
+    } zend_end_try();
+
+    zend_extensions = old_zend_extensions;
+    if (catched) {
+        zend_bailout();
+    }
+    return status;
 }
 /* }}} */
 static int xc_zend_startup(zend_extension *extension) /* {{{ */
 {
+    zend_llist_position lpos;
+    zend_extension *ext;
+
+    ext = (zend_extension *) zend_extensions.head->data;
+    if (strcmp(ext->name, XCACHE_NAME) != 0) {
+        zend_error(E_WARNING, "XCache failed to load itself as the before \"%s\". compatibility downgraded", ext->name);
+    }
+
     old_compile_file = zend_compile_file;
     zend_compile_file = xc_check_initial_compile_file;
 
-    if (1 || xcache_zend_extension_count_by_prefix(&zend_extensions, XCACHE_NAME) != zend_llist_count(&zend_extensions)) {
-        zend_llist_position lpos;
-        zend_extension *ext = (zend_extension *) zend_extensions.head->data;
-        assert(ext);
-
-        if (strcmp(ext->name, XCACHE_NAME) != 0) {
-            zend_error(E_WARNING, "XCache failed to load itself as the before \"%s\". compatibility downgraded", ext->name);
-        }
-
-        /* hide XCache modules */
-        xc_stack_init(&xc_llist_zend_extensions);
-        xcache_zend_extension_unlink_by_prefix(&xc_llist_zend_extensions, &zend_extensions, XCACHE_NAME);
-
-        ext = (zend_extension *) zend_llist_get_last_ex(&zend_extensions, &lpos);
-        assert(ext);
-        xc_last_ext_old_startup = ext->startup;
-        ext->startup = xc_zend_startup_last_hook;
+    for (ext = (zend_extension *) zend_llist_get_first_ex(&zend_extensions, &lpos);
+            ext;
+            ext = (zend_extension *) zend_llist_get_next_ex(&zend_extensions, &lpos)) {
+        xc_incompatible_zend_extension_info_t *incompatible_zend_extension_info = xc_get_incompatible_zend_extension_info(extension->name);
+        if (incompatible_zend_extension_info) {
+            assert(!incompatible_zend_extension_info->old_startup);
+            incompatible_zend_extension_info->old_startup = ext->startup;
+            ext->startup = xc_incompatible_zend_extension_startup_hook;
+        }
     }
     return SUCCESS;
@@ -657 +683 @@
     xc_shm_init_modules();
 
-    /* ZendExtension is registered in reverse order for prepend by XCache */
+    /* must be the first */
+    xcache_zend_extension_add(&xc_zend_extension_entry, 1);
+#ifdef HAVE_XCACHE_OPTIMIZER
+    xc_optimizer_startup_module();
+#endif
+#ifdef HAVE_XCACHE_CACHER
+    xc_cacher_startup_module();
+#endif
 #ifdef HAVE_XCACHE_COVERAGER
     xc_coverager_startup_module();
@@ -664 +697 @@
     xc_disassembler_startup_module();
 #endif
-#ifdef HAVE_XCACHE_CACHER
-    xc_cacher_startup_module();
-#endif
-#ifdef HAVE_XCACHE_OPTIMIZER
-    xc_optimizer_startup_module();
-#endif
-    /* must be the first */
-    xcache_zend_extension_prepend(&xc_zend_extension_entry);
 
     return SUCCESS;