diff options
| -rw-r--r-- | source3/include/debug.h | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/source3/include/debug.h b/source3/include/debug.h index 46e5620cc7..41d1c82366 100644 --- a/source3/include/debug.h +++ b/source3/include/debug.h @@ -161,9 +161,24 @@ extern bool *DEBUGLEVEL_CLASS_ISSET; * will remove the extra conditional test. */ +/* + * From talloc.c: + */ + +/* these macros gain us a few percent of speed on gcc */ +#if (__GNUC__ >= 3) +/* the strange !! is to ensure that __builtin_expect() takes either 0 or 1 + as its first argument */ +#define likely(x) __builtin_expect(!!(x), 1) +#define unlikely(x) __builtin_expect(!!(x), 0) +#else +#define likely(x) x +#define unlikely(x) x +#endif + #define DEBUGLVL( level ) \ ( ((level) <= MAX_DEBUG_LEVEL) && \ - ((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \ + unlikely((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \ (!DEBUGLEVEL_CLASS_ISSET[ DBGC_CLASS ] && \ DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \ && dbghdr( level, DBGC_CLASS, __FILE__, FUNCTION_MACRO, (__LINE__) ) ) @@ -171,7 +186,7 @@ extern bool *DEBUGLEVEL_CLASS_ISSET; #define DEBUGLVLC( dbgc_class, level ) \ ( ((level) <= MAX_DEBUG_LEVEL) && \ - ((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \ + unlikely((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \ (!DEBUGLEVEL_CLASS_ISSET[ dbgc_class ] && \ DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \ && dbghdr( level, DBGC_CLASS, __FILE__, FUNCTION_MACRO, (__LINE__) ) ) @@ -179,7 +194,7 @@ extern bool *DEBUGLEVEL_CLASS_ISSET; #define DEBUG( level, body ) \ (void)( ((level) <= MAX_DEBUG_LEVEL) && \ - ((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \ + unlikely((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \ (!DEBUGLEVEL_CLASS_ISSET[ DBGC_CLASS ] && \ DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \ && (dbghdr( level, DBGC_CLASS, __FILE__, FUNCTION_MACRO, (__LINE__) )) \ @@ -187,7 +202,7 @@ extern bool *DEBUGLEVEL_CLASS_ISSET; #define DEBUGC( dbgc_class, level, body ) \ (void)( ((level) <= MAX_DEBUG_LEVEL) && \ - ((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \ + unlikely((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \ (!DEBUGLEVEL_CLASS_ISSET[ dbgc_class ] && \ DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \ && (dbghdr( level, DBGC_CLASS, __FILE__, FUNCTION_MACRO, (__LINE__) )) \ @@ -195,14 +210,14 @@ extern bool *DEBUGLEVEL_CLASS_ISSET; #define DEBUGADD( level, body ) \ (void)( ((level) <= MAX_DEBUG_LEVEL) && \ - ((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \ + unlikely((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \ (!DEBUGLEVEL_CLASS_ISSET[ DBGC_CLASS ] && \ DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \ && (dbgtext body) ) #define DEBUGADDC( dbgc_class, level, body ) \ (void)( ((level) <= MAX_DEBUG_LEVEL) && \ - ((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \ + unlikely((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \ (!DEBUGLEVEL_CLASS_ISSET[ dbgc_class ] && \ DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \ && (dbgtext body) ) |