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src
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third_party
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musl
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src
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thread
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pthread_spin_lock.c
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#include
"pthread_impl.h"
#include
<errno.h>
int
pthread_spin_lock
(
pthread_spinlock_t
*
s
)
{
while
(*(
volatile
int
*)
s
||
a_cas
(
s
,
0
,
EBUSY
))
a_spin
();
return
0
;
}