Mailing List Archive

Author: phk
Date: 2008-02-25 19:42:07 +0100 (Mon, 25 Feb 2008)
New Revision: 2538

Modified:
trunk/varnish-cache/bin/varnishd/cache.h
Log:
Explicitly initialize errno to zero before mutex ops.


Modified: trunk/varnish-cache/bin/varnishd/cache.h
===================================================================
--- trunk/varnish-cache/bin/varnishd/cache.h 2008-02-23 20:36:33 UTC (rev 2537)
+++ trunk/varnish-cache/bin/varnishd/cache.h 2008-02-25 18:42:07 UTC (rev 2538)
@@ -589,6 +589,7 @@
#define MTX_DESTROY(foo) AZ(pthread_mutex_destroy(foo))
#define TRYLOCK(foo, r) \
do { \
+ errno = 0; \
(r) = pthread_mutex_trylock(foo); \
assert((r) == 0 || errno == EBUSY); \
if (params->diag_bitmap & 0x8) { \
@@ -599,6 +600,7 @@
} while (0)
#define LOCK(foo) \
do { \
+ errno = 0; \
if (!(params->diag_bitmap & 0x18)) { \
AZ(pthread_mutex_lock(foo)); \
} else if (pthread_mutex_trylock(foo)) { \
@@ -614,6 +616,7 @@
} while (0)
#define UNLOCK(foo) \
do { \
+ errno = 0; \
AZ(pthread_mutex_unlock(foo)); \
if (params->diag_bitmap & 0x8) \
VSL(SLT_Debug, 0, \