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/*
* Copyright 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <ftl/shared_mutex.h>
#include <gtest/gtest.h>
#include <ftl/fake_guard.h>
namespace android::test {
TEST(SharedMutex, SharedLock) {
ftl::SharedMutex mutex;
std::shared_lock shared_lock(mutex);
{ std::shared_lock shared_lock2(mutex); }
}
TEST(SharedMutex, ExclusiveLock) {
ftl::SharedMutex mutex;
std::unique_lock unique_lock(mutex);
}
TEST(SharedMutex, Annotations) {
struct {
void foo() FTL_ATTRIBUTE(requires_shared_capability(mutex)) { num++; }
void bar() FTL_ATTRIBUTE(requires_capability(mutex)) { num++; }
void baz() {
std::shared_lock shared_lock(mutex);
num++;
}
ftl::SharedMutex mutex;
int num = 0;
} s;
{
// TODO(b/257958323): Use an RAII class instead of locking manually.
s.mutex.lock_shared();
s.foo();
s.baz();
s.mutex.unlock_shared();
}
s.mutex.lock();
s.bar();
s.mutex.unlock();
}
} // namespace android::test
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