- Generalize the fast cache mechanism

- Add the HashTable struct to the fast cache mechanism

1 files changed, 110 insertions, 0 deletions

diff --git a/Zend/zend_fast_cache.h b/Zend/zend_fast_cache.h
new file mode 100644
index 0000000000..865fb23c51
--- /dev/null
+++ b/Zend/zend_fast_cache.h
@@ -0,0 +1,110 @@
+/*
+   +----------------------------------------------------------------------+
+   | Zend Engine                                                          |
+   +----------------------------------------------------------------------+
+   | Copyright (c) 1998, 1999 Andi Gutmans, Zeev Suraski                  |
+   +----------------------------------------------------------------------+
+   | This source file is subject to version 0.91 of the Zend license,     |
+   | that is bundled with this package in the file LICENSE, and is        | 
+   | available at through the world-wide-web at                           |
+   | http://www.zend.com/license/0_91.txt.                                |
+   | If you did not receive a copy of the Zend license and are unable to  |
+   | obtain it through the world-wide-web, please send a note to          |
+   | license@zend.com so we can mail you a copy immediately.              |
+   +----------------------------------------------------------------------+
+   | Authors: Andi Gutmans <andi@zend.com>                                |
+   |          Zeev Suraski <zeev@zend.com>                                |
+   +----------------------------------------------------------------------+
+*/
+
+
+#ifndef _ZEND_FAST_CACHE_H
+#define _ZEND_FAST_CACHE_H
+
+#define ZEND_ENABLE_FAST_CACHE	1
+
+#define MAX_FAST_CACHE_TYPES	4
+
+#if ZEND_ENABLE_FAST_CACHE
+
+#define ZVAL_CACHE_LIST			0
+#define HASHTABLE_CACHE_LIST	1
+
+#include "zend_globals.h"
+#include "zend_globals_macros.h"
+#include "zend_alloc.h"
+
+typedef struct _zend_fast_cache_list_entry {
+	struct _zend_fast_cache_list_entry *next;
+} zend_fast_cache_list_entry;
+
+#if ZEND_DEBUG
+# define RECORD_ZVAL_CACHE_HIT(fc_type)		AG(fast_cache_stats)[fc_type][1]++;
+# define RECORD_ZVAL_CACHE_MISS(fc_type)	AG(fast_cache_stats)[fc_type][0]++;
+#else
+# define RECORD_ZVAL_CACHE_HIT(fc_type)
+# define RECORD_ZVAL_CACHE_MISS(fc_type)
+#endif
+
+#ifndef ZTS
+extern zend_alloc_globals alloc_globals;
+#endif
+
+#define ZEND_FAST_ALLOC(p, type, fc_type)								\
+	{																\
+		ALS_FETCH();												\
+																	\
+		if (((p) = (type *) AG(fast_cache_list_head)[fc_type])) {	\
+			AG(fast_cache_list_head)[fc_type] = ((zend_fast_cache_list_entry *) AG(fast_cache_list_head)[fc_type])->next;	\
+			RECORD_ZVAL_CACHE_HIT(fc_type);							\
+		} else {													\
+			(p) = (type *) emalloc(sizeof(type));					\
+			RECORD_ZVAL_CACHE_MISS(fc_type);						\
+		}															\
+	}
+
+
+#define ZEND_FAST_FREE(p, fc_type)										\
+	{																\
+		ALS_FETCH();												\
+																	\
+		((zend_fast_cache_list_entry *) (p))->next = AG(fast_cache_list_head)[fc_type];	\
+		AG(fast_cache_list_head)[fc_type] = (zend_fast_cache_list_entry *) (p);			\
+	}
+
+
+#else /* !ZEND_ENABLE_FAST_CACHE */
+
+#define ZEND_FAST_ALLOC(p, type, fc_type)	\
+	(p) = (type *) emalloc(sizeof(type))
+
+#define ZEND_FAST_FREE(p, fc_type)	\
+	efree(p)
+
+#endif /* ZEND_ENABLE_FAST_CACHE */
+
+
+
+
+/* fast cache for zval's */
+#define ALLOC_ZVAL(z)	\
+	ZEND_FAST_ALLOC(z, zval, ZVAL_CACHE_LIST)
+
+#define FREE_ZVAL(z)	\
+	ZEND_FAST_FREE(z, ZVAL_CACHE_LIST)
+
+/* fast cache for HashTable's */
+#define ALLOC_HASHTABLE(b)	\
+	ZEND_FAST_ALLOC(b, HashTable, HASHTABLE_CACHE_LIST)
+
+#define FREE_HASHTABLE(ht)	\
+	ZEND_FAST_FREE(ht, HASHTABLE_CACHE_LIST)
+
+#endif /* _ZEND_FAST_CACHE_H */
+
+/*
+ * Local variables:
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */