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avoid deref

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We can avoid a deref when we use container_of to get from the interface
to the handle.
This commit is contained in:
Wim Taymans 2016-10-12 17:27:29 +02:00
parent 6b3bb79e70
commit 82414810e8
23 changed files with 433 additions and 385 deletions
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40
spa/include/spa/defs.h
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@ -116,6 +116,46 @@ typedef void (*SpaNotify) (void *data);
# define SPA_PRINTF_FUNC(fmt, arg1)
#endif
#ifndef SPA_LIKELY
#ifdef __GNUC__
#define SPA_LIKELY(x) (__builtin_expect(!!(x),1))
#define SPA_UNLIKELY(x) (__builtin_expect(!!(x),0))
#else
#define SPA_LIKELY(x) (x)
#define SPA_UNLIKELY(x) (x)
#endif
#endif
#define spa_return_if_fail (log, expr) \
do { \
if (SPA_UNLIKELY (!(expr))) { \
spa_log_debug(log, "Assertion '%s' failed\n", #expr); \
return; \
} \
} while(false)
#define spa_return_val_if_fail (log, expr, val) \
do { \
if (SPA_UNLIKELY(!(expr))) { \
spa_log_debug (log, "Assertion '%s' failed\n", #expr); \
return (val); \
} \
} while(false)
/* spa_assert_se() is an assert which guarantees side effects of x,
* i.e. is never optimized away, regardless of NDEBUG or FASTPATH. */
#define spa_assert_se (expr) \
do { \
if (SPA_UNLIKELY(!(expr))) { \
spa_log_error("Assertion '%s' failed, Aborting\n.", #expr); \
abort(); \
} \
} while (false)
/* Does exactly nothing */
#define spa_nop() do {} while (false)
#ifdef __cplusplus
} /* extern "C" */