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Add branch prediction to util_bug.h, and fix a bug.

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This commit is contained in:
Nick Mathewson
2016-04-15 09:12:03 -04:00
parent 0e354ad459
commit 381dae43b6
1 changed files with 6 additions and 6 deletions
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src/common/util_bug.h
+6 -6
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@@ -64,7 +64,7 @@
#define tor_assert_nonfatal_unreached_once() tor_assert(0)
#define tor_assert_nonfatal_once(cond) tor_assert((cond))
#define BUG(cond) \
((cond) ? \
(PREDICT_UNLIKELY(cond) ? \
(tor_assertion_failed_(SHORT_FILE__,__LINE__,__func__,#cond), abort(), 1) \
: 0)
#elif defined(TOR_UNIT_TESTS) && defined(DISABLE_ASSERTS_IN_UNIT_TESTS)
@@ -72,7 +72,7 @@
#define tor_assert_nonfatal(cond) ((void)(cond))
#define tor_assert_nonfatal_unreached_once() STMT_NIL
#define tor_assert_nonfatal_once(cond) ((void)(cond))
#define BUG(cond) ((cond) ? 1 : 0)
#define BUG(cond) (PREDICT_UNLIKELY(cond) ? 1 : 0)
#else /* Normal case, !ALL_BUGS_ARE_FATAL, !DISABLE_ASSERTS_IN_UNIT_TESTS */
#define tor_assert_nonfatal_unreached() STMT_BEGIN \
tor_bug_occurred_(SHORT_FILE__, __LINE__, __func__, NULL, 0); \
@@ -97,7 +97,7 @@
} \
STMT_END
#define BUG(cond) \
((cond) ? \
(PREDICT_UNLIKELY(cond) ? \
(tor_bug_occurred_(SHORT_FILE__,__LINE__,__func__,#cond,0), 1) \
: 0)
#endif
@@ -107,15 +107,15 @@
if (({ \
static int var = 0; \
int bool_result = (cond); \
if (bool_result && !var) { \
if (PREDICT_UNLIKELY(bool_result) && !var) { \
var = 1; \
tor_bug_occurred_(SHORT_FILE__, __LINE__, __func__, #cond, 1); \
} \
var; }))
PREDICT_UNLIKELY(bool_result); }))
#else
#define IF_BUG_ONCE__(cond,var) \
static int var = 0; \
if ((cond) ? \
if (PREDICT_UNLIKELY(cond)) ? \
(var ? 1 : \
(var=1, \
tor_bug_occurred_(SHORT_FILE__, __LINE__, __func__, #cond, 1), \