Disable signals in URCU background threads

[userspace-rcu.git] / src / urcu-call-rcu-impl.h

diff --git a/src/urcu-call-rcu-impl.h b/src/urcu-call-rcu-impl.h
index e9366b42355b8b0db313cca083b121017192852b..9f85d55b403c5fa1f882947af021c6cae460d712 100644 (file)
--- a/src/urcu-call-rcu-impl.h
+++ b/src/urcu-call-rcu-impl.h
@@ -434,6 +434,7 @@ static void call_rcu_data_init(struct call_rcu_data **crdpp,
 {
        struct call_rcu_data *crdp;
        int ret;
+       sigset_t newmask, oldmask;
 
        crdp = malloc(sizeof(*crdp));
        if (crdp == NULL)
@@ -448,9 +449,18 @@ static void call_rcu_data_init(struct call_rcu_data **crdpp,
        crdp->gp_count = 0;
        cmm_smp_mb();  /* Structure initialized before pointer is planted. */
        *crdpp = crdp;
+
+       ret = sigfillset(&newmask);
+       urcu_posix_assert(!ret);
+       ret = pthread_sigmask(SIG_BLOCK, &newmask, &oldmask);
+       urcu_posix_assert(!ret);
+
        ret = pthread_create(&crdp->tid, NULL, call_rcu_thread, crdp);
        if (ret)
                urcu_die(ret);
+
+       ret = pthread_sigmask(SIG_SETMASK, &oldmask, NULL);
+       urcu_posix_assert(!ret);
 }
 
 /*