The nxt_expect() macro.

diff --git a/nxt/nxt_clang.h b/nxt/nxt_clang.h
index aeadb117264319657bc55252c03323bf3a49aed6..32737201340d4da10abff9d324470d1f8c613aa9 100644 (file)
--- a/nxt/nxt_clang.h
+++ b/nxt/nxt_clang.h
@@ -27,10 +27,12 @@
 
 
 #if (NXT_HAVE_BUILTIN_EXPECT)
-#define nxt_fast_path(x)   __builtin_expect((long) (x), 1)
-#define nxt_slow_path(x)   __builtin_expect((long) (x), 0)
+#define nxt_expect(c, x)   __builtin_expect((long) (x), (c))
+#define nxt_fast_path(x)   nxt_expect(1, x)
+#define nxt_slow_path(x)   nxt_expect(0, x)
 
 #else
+#define nxt_expect(c, x)   (x)
 #define nxt_fast_path(x)   (x)
 #define nxt_slow_path(x)   (x)
 #endif