Added macros for hinting branch predictor.

[libucw.git] / lib / config.h

diff --git a/lib/config.h b/lib/config.h
index b51a943d97bd7ebc5069b347dc59f132136ea175..cc2d86da15ac5f3ec43f2dd11b6dfb5ae938f4a5 100644 (file)
--- a/lib/config.h
+++ b/lib/config.h
@@ -1,7 +1,7 @@
 /*
  *     Sherlock -- Configuration-Dependent Definitions
  *
- *     (c) 1997--2002 Martin Mares <mj@ucw.cz>
+ *     (c) 1997--2003 Martin Mares <mj@ucw.cz>
  *
  *     This software may be freely distributed and used according to the terms
  *     of the GNU Lesser General Public License.
@@ -16,7 +16,7 @@
 
 /* Version */
 
-#define SHER_VER "2.2" SHERLOCK_VERSION_SUFFIX
+#define SHER_VER "2.5" SHERLOCK_VERSION_SUFFIX
 
 /* Paths */
 
@@ -46,7 +46,7 @@ typedef u32 oid_t;                    /* Object ID */
 
 /* Data types and functions for accessing file positions */
 
-#ifdef SHERLOCK_CONFIG_LARGE_DB
+#ifdef CONFIG_LARGE_DB
 typedef s64 sh_off_t;
 #define BYTES_PER_O 5
 #define BYTES_PER_P 8
@@ -82,6 +82,9 @@ typedef s32 sh_off_t;
 #define CONSTRUCTOR __attribute__((constructor))
 #define PACKED __attribute__((packed))
 #define CONST __attribute__((const))
+#define PURE __attribute__((const))
+#define likely(x) __builtin_expect((x),1)
+#define unlikely(x) __builtin_expect((x),0)
 
 #else
 #error This program requires the GNU C compiler.