Fix raise(3) so it works in signal handlers.
We could special-case raise(3) in non-threaded programs, but the more
conservative course is to make pthread_kill(3) work in signal handlers
at the cost of a race shared by other C libraries.
Change-Id: I59fb23d03bdabf403435e731704b33acdf3e0234
diff --git a/tests/pthread_test.cpp b/tests/pthread_test.cpp
index 239092c..98bc4e5 100644
--- a/tests/pthread_test.cpp
+++ b/tests/pthread_test.cpp
@@ -252,6 +252,24 @@
ASSERT_EQ(EINVAL, pthread_kill(pthread_self(), -1));
}
+static void pthread_kill__in_signal_handler_helper(int signal_number) {
+ static int count = 0;
+ ASSERT_EQ(SIGALRM, signal_number);
+ if (++count == 1) {
+ // Can we call pthread_kill from a signal handler?
+ ASSERT_EQ(0, pthread_kill(pthread_self(), SIGALRM));
+ }
+}
+
+TEST(pthread, pthread_kill__in_signal_handler) {
+ struct sigaction action;
+ sigemptyset(&action.sa_mask);
+ action.sa_flags = 0;
+ action.sa_handler = pthread_kill__in_signal_handler_helper;
+ sigaction(SIGALRM, &action, NULL);
+ ASSERT_EQ(0, pthread_kill(pthread_self(), SIGALRM));
+}
+
TEST(pthread, pthread_detach__no_such_thread) {
pthread_t dead_thread;
MakeDeadThread(dead_thread);