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- Fix #52407 (use __sync_bool_compare_and_swap in fpm_atomic.h if gcc >= 4.1 is used - credit to geissert)

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This commit is contained in:
Jérôme Loyet 2010-08-21 06:46:18 +00:00
parent 06228b2cab
commit 6b8f3c0c59
1 changed files with 13 additions and 1 deletions
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14
sapi/fpm/fpm/fpm_atomic.h
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@ -12,7 +12,19 @@
#endif
#include <sched.h>
#if ( __i386__ || __i386 )
#if (__GNUC__) && (__GNUC__ >= 4 && __GNUC_MINOR__ >= 1)
/**
* all the cases below (as provided by upstream) define:
* word as atomic_int_t, and
* unsigned word as atomic_uint_t
* and only use volatile atomic_uint_t as atomic_t
*/
typedef volatile unsigned long atomic_t;
#define atomic_cmp_set(a,b,c) __sync_bool_compare_and_swap(a,b,c)
#elif ( __i386__ || __i386 )
typedef int32_t atomic_int_t;
typedef uint32_t atomic_uint_t;