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