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authorLennart Poettering <lennart@poettering.net>2007-11-09 01:28:56 +0000
committerLennart Poettering <lennart@poettering.net>2007-11-09 01:28:56 +0000
commitc8cdb06135e2e316a724098e5c0af7aa9e81091e (patch)
tree101f464646ab03ee71673edcfbdfbe133bfde984
parent14b974a6d870432554afc20710ad9f93f4833e88 (diff)
add support for likely()/unlikely() type macros
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@2032 fefdeb5f-60dc-0310-8127-8f9354f1896f
-rw-r--r--src/pulsecore/gccmacro.h14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/pulsecore/gccmacro.h b/src/pulsecore/gccmacro.h
index e9f0d093..ecdc0578 100644
--- a/src/pulsecore/gccmacro.h
+++ b/src/pulsecore/gccmacro.h
@@ -60,7 +60,7 @@
#endif
#ifndef PA_GCC_PURE
-#ifdef __GNUCC__
+#ifdef __GNUC__
#define PA_GCC_PURE __attribute__ ((pure))
#else
/** This function's return value depends only the arguments list and global state **/
@@ -69,7 +69,7 @@
#endif
#ifndef PA_GCC_CONST
-#ifdef __GNUCC__
+#ifdef __GNUC__
#define PA_GCC_CONST __attribute__ ((const))
#else
/** This function's return value depends only the arguments list (stricter version of PA_GCC_PURE) **/
@@ -77,4 +77,14 @@
#endif
#endif
+#ifndef PA_LIKELY
+#ifdef __GNUC__
+#define PA_LIKELY(x) __builtin_expect((x),1)
+#define PA_UNLIKELY(x) __builtin_expect((x),0)
+#else
+#define PA_LIKELY(x) (x)
+#define PA_UNLIKELY(x) (x)
+#endif
+#endif
+
#endif