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add legacy sys/ttydefaults.h header
[oweals/musl.git]
/
src
/
thread
/
pthread_barrier_destroy.c
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#include "pthread_impl.h"
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void __vm_lock(int), __vm_unlock(void);
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int pthread_barrier_destroy(pthread_barrier_t *b)
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{
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if (b->_b_limit < 0) {
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if (b->_b_lock) {
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int v;
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a_or(&b->_b_lock, INT_MIN);
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while ((v = b->_b_lock) & INT_MAX)
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__wait(&b->_b_lock, 0, v, 0);
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}
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__vm_lock(-1);
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__vm_unlock();
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}
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return 0;
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}