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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/unittest/unittest.h"
#include "mongo/config.h"
#include "mongo/platform/mutex.h"
namespace mongo {
TEST(MutexTest, BasicSingleThread) {
Mutex m;
m.lock();
ASSERT(!m.try_lock());
m.unlock();
ASSERT(m.try_lock());
m.unlock();
}
#ifndef MONGO_CONFIG_USE_RAW_LATCHES
namespace {
// Since this MONGO_MAKE_LATCH has no arguments, the mutex is anonymous
auto gMutex = MONGO_MAKE_LATCH();
} // anonymous namespace
TEST(MutexTest, Macros) {
// Verify a pure inline latch
auto constexpr kLatchName = "inlineLatchForTest";
auto m1 = MONGO_MAKE_LATCH(kLatchName);
static_assert(std::is_same_v<decltype(m1), Mutex>);
ASSERT_EQ(m1.getName(), kLatchName);
// Verify a class member latch
struct MutexHolder {
Mutex m2 = MONGO_MAKE_LATCH("MutexHolder");
} holder;
static_assert(std::is_same_v<decltype(MutexHolder::m2), Mutex>);
ASSERT_NE(holder.m2.getName().find("MutexHolder"_sd), std::string::npos);
ASSERT_EQ(holder.m2.getName().find("m2"_sd), std::string::npos) << holder.m2.getName();
// Verify the global named latch
static_assert(std::is_same_v<decltype(gMutex), Mutex>);
ASSERT_EQ(gMutex.getName(), latch_detail::kAnonymousName);
}
#endif
} // namespace mongo
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