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cba4e1c0a3
this avoids the "stampede effect" where pthread_cond_broadcast would result in all waiters waking up simultaneously, only to immediately contend for the mutex and go back to sleep.
12 lines
224 B
C
12 lines
224 B
C
#include "pthread_impl.h"
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int pthread_cond_init(pthread_cond_t *c, const pthread_condattr_t *a)
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{
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memset(c, 0, sizeof *c);
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if (a) {
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c->_c_clock = *a & 0x7fffffff;
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if (*a>>31) c->_c_mutex = (void *)-1;
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}
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return 0;
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}
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