2 * Copyright 2017 Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 #include <folly/io/async/AsyncSignalHandler.h>
17 #include <folly/io/async/EventBase.h>
19 #include <folly/portability/GTest.h>
21 using namespace folly;
24 class TestSignalHandler : public AsyncSignalHandler {
26 using AsyncSignalHandler::AsyncSignalHandler;
28 void signalReceived(int /* signum */) noexcept override {
36 TEST(AsyncSignalHandler, basic) {
38 TestSignalHandler handler{&evb};
40 handler.registerSignalHandler(SIGUSR1);
41 kill(getpid(), SIGUSR1);
43 EXPECT_FALSE(handler.called);
44 evb.loopOnce(EVLOOP_NONBLOCK);
45 EXPECT_TRUE(handler.called);
48 TEST(AsyncSignalHandler, attachEventBase) {
49 TestSignalHandler handler{nullptr};
50 EXPECT_FALSE(handler.getEventBase());
53 handler.attachEventBase(&evb);
54 EXPECT_EQ(&evb, handler.getEventBase());
56 handler.registerSignalHandler(SIGUSR1);
57 kill(getpid(), SIGUSR1);
58 EXPECT_FALSE(handler.called);
59 evb.loopOnce(EVLOOP_NONBLOCK);
60 EXPECT_TRUE(handler.called);
62 handler.unregisterSignalHandler(SIGUSR1);
63 handler.detachEventBase();
64 EXPECT_FALSE(handler.getEventBase());