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musl/src/thread/pthread_mutex_setprioceiling.c

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add stub versions of some missing optional pthread interfaces priority inheritance is not yet supported, and priority protection probably will not be supported ever unless there's serious demand for it (it's a fairly heavy-weight feature). per-thread cpu clocks would be nice to have, but to my knowledge linux is still not capable of supporting them. glibc fakes them by using the _process_ cpu-time clock and subtracting the thread creation time, which gives seriously incorrect semantics (worse than not supporting the feature at all), so until there's a way to do it right, it will remain as a stub that always fails.
14 years ago
#include "pthread_impl.h"
int pthread_mutex_setprioceiling(pthread_mutex_t *restrict m, int ceiling, int *restrict old)
{
return EINVAL;
}