Add PHPAPI php_session_flush and php_session_destroy

Author: dreamsxin

ext/session/php_session.h

@@ -255,6 +255,7 @@ PHPAPI int php_session_update_timestamp(PS_UPDATE_TIMESTAMP_ARGS);
 
 PHPAPI void session_adapt_url(const char *, size_t, char **, size_t *);
 
+PHPAPI int php_session_destroy(void);
 PHPAPI void php_add_session_var(zend_string *name);
 PHPAPI zval *php_set_session_var(zend_string *name, zval *state_val, php_unserialize_data_t *var_hash);
 PHPAPI zval *php_get_session_var(zend_string *name);
@@ -267,6 +268,7 @@ PHPAPI int php_session_register_serializer(const char *name,
 
 PHPAPI void php_session_set_id(char *id);
 PHPAPI int php_session_start(void);
+PHPAPI int php_session_flush(int write);
 
 PHPAPI ps_module *_php_find_ps_module(char *name);
 PHPAPI const ps_serializer *_php_find_ps_serializer(char *name);

ext/session/session.c

@@ -151,7 +151,7 @@ static inline void php_rshutdown_session_globals(void) /* {{{ */
 }
 /* }}} */
 
-static int php_session_destroy(void) /* {{{ */
+PHPAPI int php_session_destroy(void) /* {{{ */
 {
 	int retval = SUCCESS;
 
@@ -1606,7 +1606,7 @@ PHPAPI int php_session_start(void) /* {{{ */
 }
 /* }}} */
 
-static int php_session_flush(int write) /* {{{ */
+PHPAPI int php_session_flush(int write) /* {{{ */
 {
 	if (PS(session_status) == php_session_active) {
 		php_session_save_current_state(write);
@@ -1671,7 +1671,7 @@ static PHP_FUNCTION(session_set_cookie_params)
 		return;
 	}
 
- 
+
 	if (PS(session_status) == php_session_active) {
 		php_error_docref(NULL, E_WARNING, "Cannot change session cookie parameters when session is active");
 		RETURN_FALSE;