41 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// <mutex>10 11// template <class Rep, class Period>12// unique_lock::unique_lock(mutex_type& m, const chrono::duration<Rep, Period>& rel_time);13 14#include <cassert>15#include <chrono>16#include <mutex>17 18#include "checking_mutex.h"19 20int main(int, char**) {21 checking_mutex mux;22 { // check successful lock23 mux.reject = false;24 std::unique_lock<checking_mutex> lock(mux, std::chrono::seconds());25 assert(mux.current_state == checking_mutex::locked_via_try_lock_for);26 assert(lock.owns_lock());27 }28 assert(mux.current_state == checking_mutex::unlocked);29 30 { // check unsuccessful lock31 mux.reject = true;32 std::unique_lock<checking_mutex> lock(mux, std::chrono::seconds());33 assert(mux.current_state == checking_mutex::unlocked);34 assert(mux.last_try == checking_mutex::locked_via_try_lock_for);35 assert(!lock.owns_lock());36 }37 assert(mux.current_state == checking_mutex::unlocked);38 39 return 0;40}41