19 lines
452 B
C
19 lines
452 B
C
#include "pthread_impl.h"
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#include "lock.h"
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int pthread_kill(pthread_t t, int sig)
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{
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int r;
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sigset_t set;
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/* Block not just app signals, but internal ones too, since
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* pthread_kill is used to implement pthread_cancel, which
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* must be async-cancel-safe. */
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__block_all_sigs(&set);
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LOCK(t->killlock);
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r = t->tid ? -__syscall(SYS_tkill, t->tid, sig)
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: (sig+0U >= _NSIG ? EINVAL : 0);
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UNLOCK(t->killlock);
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__restore_sigs(&set);
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return r;
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}
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