From 7c71792e87691451f2a6b76348e83ad1889f1dcb Mon Sep 17 00:00:00 2001 From: James Y Knight Date: Sun, 30 Jun 2019 21:55:20 -0400 Subject: add support for SIGEV_THREAD_ID timers This is like SIGEV_SIGNAL, but targeted to a particular thread's tid, rather than the process. --- src/time/timer_create.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'src/time') 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; -- cgit v1.2.1