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authorJames Y Knight <jyknight@google.com>2019-06-30 21:55:20 -0400
committerRich Felker <dalias@aerifal.cx>2020-10-28 23:00:08 -0400
commit7c71792e87691451f2a6b76348e83ad1889f1dcb (patch)
tree05ba932ab3cd73d9babb31c7e262906887154a7f /src/time
parentf70375df85d26235a45e74559afd69be59e5ff99 (diff)
downloadmusl-7c71792e87691451f2a6b76348e83ad1889f1dcb.tar.gz
add support for SIGEV_THREAD_ID timers
This is like SIGEV_SIGNAL, but targeted to a particular thread's tid, rather than the process.
Diffstat (limited to 'src/time')
-rw-r--r--src/time/timer_create.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/time/timer_create.c b/src/time/timer_create.c
index 5ddfda27..4bef2390 100644
--- a/src/time/timer_create.c
+++ b/src/time/timer_create.c
@@ -71,11 +71,15 @@ int timer_create(clockid_t clk, struct sigevent *restrict evp, timer_t *restrict
switch (evp ? evp->sigev_notify : SIGEV_SIGNAL) {
case SIGEV_NONE:
case SIGEV_SIGNAL:
+ case SIGEV_THREAD_ID:
if (evp) {
ksev.sigev_value = evp->sigev_value;
ksev.sigev_signo = evp->sigev_signo;
ksev.sigev_notify = evp->sigev_notify;
- ksev.sigev_tid = 0;
+ if (evp->sigev_notify == SIGEV_THREAD_ID)
+ ksev.sigev_tid = evp->sigev_notify_thread_id;
+ else
+ ksev.sigev_tid = 0;
ksevp = &ksev;
}
if (syscall(SYS_timer_create, clk, ksevp, &timerid) < 0)
@@ -107,7 +111,7 @@ int timer_create(clockid_t clk, struct sigevent *restrict evp, timer_t *restrict
ksev.sigev_value.sival_ptr = 0;
ksev.sigev_signo = SIGTIMER;
- ksev.sigev_notify = 4; /* SIGEV_THREAD_ID */
+ ksev.sigev_notify = SIGEV_THREAD_ID;
ksev.sigev_tid = td->tid;
if (syscall(SYS_timer_create, clk, &ksev, &timerid) < 0)
timerid = -1;