From 4cf00c08bde40ff0924b9fd9da4c0eb3d42e2753 Mon Sep 17 00:00:00 2001
From: Dmitry Stogov <dmitry@zend.com>
Date: Tue, 9 Apr 2013 11:57:28 +0400
Subject: [PATCH] Fixed issue #26 (added opcache_invalidate(string $filename [,
 bool $force = false]) function)

---
 ext/opcache/ZendAccelerator.c         | 49 +++++++++++++++++++++++++++
 ext/opcache/ZendAccelerator.h         |  1 +
 ext/opcache/zend_accelerator_module.c | 21 ++++++++++++
 3 files changed, 71 insertions(+)

diff --git a/ext/opcache/ZendAccelerator.c b/ext/opcache/ZendAccelerator.c
index 168082ea13acd..b62f245f4c21b 100644
--- a/ext/opcache/ZendAccelerator.c
+++ b/ext/opcache/ZendAccelerator.c
@@ -1047,6 +1047,55 @@ static inline char *accel_make_persistent_key(zend_file_handle *file_handle, int
 	return accel_make_persistent_key_ex(file_handle, strlen(file_handle->filename), key_len TSRMLS_CC);
 }
 
+int zend_accel_invalidate(const char *filename, int filename_len, zend_bool force TSRMLS_DC)
+{
+	char *realpath;
+	zend_persistent_script *persistent_script;
+
+	if (!ZCG(enabled) || !accel_startup_ok || !ZCSG(accelerator_enabled) || accelerator_shm_read_lock(TSRMLS_C) != SUCCESS) {
+		return FAILURE;
+	}
+
+#if ZEND_EXTENSION_API_NO < PHP_5_3_X_API_NO
+	realpath = accel_php_resolve_path(filename, filename_len, ZCG(include_path) TSRMLS_CC);
+#else
+	realpath = accelerator_orig_zend_resolve_path(filename, filename_len TSRMLS_CC);
+#endif
+
+	persistent_script = zend_accel_hash_find(&ZCSG(hash), realpath, strlen(realpath) + 1);
+	if (persistent_script && !persistent_script->corrupted) {
+		zend_file_handle file_handle;
+
+		file_handle.type = ZEND_HANDLE_FILENAME;
+		file_handle.filename = realpath;
+		file_handle.opened_path = realpath;
+
+		if (force ||
+			!ZCG(accel_directives).validate_timestamps ||
+			do_validate_timestamps(persistent_script, &file_handle TSRMLS_CC) == FAILURE) {
+			SHM_UNPROTECT();
+			zend_shared_alloc_lock(TSRMLS_C);
+			if (!persistent_script->corrupted) {
+				persistent_script->corrupted = 1;
+				persistent_script->timestamp = 0;
+				ZSMMG(wasted_shared_memory) += persistent_script->dynamic_members.memory_consumption;
+				if (ZSMMG(memory_exhausted)) {
+					zend_accel_restart_reason reason =
+						zend_accel_hash_is_full(&ZCSG(hash)) ? ACCEL_RESTART_HASH : ACCEL_RESTART_OOM;
+					zend_accel_schedule_restart_if_necessary(reason TSRMLS_CC);
+				}
+			}
+			zend_shared_alloc_unlock(TSRMLS_C);
+			SHM_PROTECT();
+		}
+	}
+
+	accelerator_shm_read_unlock(TSRMLS_C);
+	efree(realpath);
+	
+	return SUCCESS;
+}
+
 /* Adds another key for existing cached script */
 static void zend_accel_add_key(char *key, unsigned int key_length, zend_accel_hash_entry *bucket TSRMLS_DC)
 {
diff --git a/ext/opcache/ZendAccelerator.h b/ext/opcache/ZendAccelerator.h
index f2005473b1eec..85f95708a28e2 100644
--- a/ext/opcache/ZendAccelerator.h
+++ b/ext/opcache/ZendAccelerator.h
@@ -318,6 +318,7 @@ extern char *zps_api_failure_reason;
 
 void zend_accel_schedule_restart(zend_accel_restart_reason reason TSRMLS_DC);
 void zend_accel_schedule_restart_if_necessary(zend_accel_restart_reason reason TSRMLS_DC);
+int  zend_accel_invalidate(const char *filename, int filename_len, zend_bool force TSRMLS_DC);
 int  accelerator_shm_read_lock(TSRMLS_D);
 void accelerator_shm_read_unlock(TSRMLS_D);
 
diff --git a/ext/opcache/zend_accelerator_module.c b/ext/opcache/zend_accelerator_module.c
index 8d6ed4ee27c14..94a6b6b19036b 100644
--- a/ext/opcache/zend_accelerator_module.c
+++ b/ext/opcache/zend_accelerator_module.c
@@ -43,6 +43,7 @@ static void (*orig_is_readable)(INTERNAL_FUNCTION_PARAMETERS) = NULL;
 
 /* User functions */
 static ZEND_FUNCTION(opcache_reset);
+static ZEND_FUNCTION(opcache_invalidate);
 
 /* Private functions */
 static ZEND_FUNCTION(opcache_get_status);
@@ -51,6 +52,7 @@ static ZEND_FUNCTION(opcache_get_configuration);
 static zend_function_entry accel_functions[] = {
 	/* User functions */
 	ZEND_FE(opcache_reset,					NULL)
+	ZEND_FE(opcache_invalidate,				NULL)
 	/* Private functions */
 	ZEND_FE(opcache_get_configuration,		NULL)
 	ZEND_FE(opcache_get_status,				NULL)
@@ -643,3 +645,22 @@ static ZEND_FUNCTION(opcache_reset)
 	zend_accel_schedule_restart(ACCEL_RESTART_USER TSRMLS_CC);
 	RETURN_TRUE;
 }
+
+/* {{{ proto void opcache_invalidate(string $script [, bool $force = false])
+   Invalidates cached script (in necessary or forced) */
+static ZEND_FUNCTION(opcache_invalidate)
+{
+	char *script_name;
+	int script_name_len;
+	zend_bool force = 0;
+
+	if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|b", &script_name, &script_name_len, &force) == FAILURE) {
+		return;
+	}
+
+	if (zend_accel_invalidate(script_name, script_name_len, force) == SUCCESS) {
+		RETURN_TRUE;
+	} else {
+		RETURN_FALSE;
+	}
+}