diff options
Diffstat (limited to 'libc-top-half/musl/src/thread/pthread_kill.c')
-rw-r--r-- | libc-top-half/musl/src/thread/pthread_kill.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/libc-top-half/musl/src/thread/pthread_kill.c b/libc-top-half/musl/src/thread/pthread_kill.c new file mode 100644 index 0000000..79ddb20 --- /dev/null +++ b/libc-top-half/musl/src/thread/pthread_kill.c @@ -0,0 +1,18 @@ +#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; +} |