block signals in timer threads

[musl] / src / time / timer_create.c

diff --git a/src/time/timer_create.c b/src/time/timer_create.c
index cc10bef..593f73a 100644 (file)
--- a/src/time/timer_create.c
+++ b/src/time/timer_create.c
@@ -51,8 +51,7 @@ static void install_handler()
                .sa_flags = SA_SIGINFO | SA_RESTART
        };
        __libc_sigaction(SIGTIMER, &sa, 0);
-       sigaddset(&sa.sa_mask, SIGTIMER);
-       __libc_sigprocmask(SIG_UNBLOCK, &sa.sa_mask, 0);
+       __syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, SIGTIMER_SET, 0, 8);
 }
 
 static void *start(void *arg)
@@ -81,6 +80,7 @@ int timer_create(clockid_t clk, struct sigevent *evp, timer_t *res)
        struct start_args args;
        struct ksigevent ksev, *ksevp=0;
        int timerid;
+       sigset_t set;
 
        switch (evp ? evp->sigev_notify : SIGEV_SIGNAL) {
        case SIGEV_NONE:
@@ -105,7 +105,10 @@ int timer_create(clockid_t clk, struct sigevent *evp, timer_t *res)
                pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
                pthread_barrier_init(&args.b, 0, 2);
                args.sev = evp;
+               sigfillset(&set);
+               pthread_sigmask(SIG_BLOCK, &set, &set);
                r = pthread_create(&td, &attr, start, &args);
+               pthread_sigmask(SIG_SETMASK, &set, 0);
                if (r) {
                        errno = r;
                        return -1;