//===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// #ifndef TEST_STD_THREAD_CONDITION_CONDVARANY_HELPERS_H #define TEST_STD_THREAD_CONDITION_CONDVARANY_HELPERS_H #include #include #include "test_macros.h" #if TEST_STD_VER >= 17 // wait_for and wait_until function can exit via // - predicate is true // - timeout // - stop_requested // The return value only tells if the predicate is true // when the function exits, but it does not tell whether // it is timeout or stop_requested. // // ElapsedTimeCheck would fail the test if a test takes // longer than a duration. This is useful because we can // ensure that the wait_{for, until} function does not // wait until the timeout struct ElapsedTimeCheck { ElapsedTimeCheck(std::chrono::steady_clock::duration timeoutDuration) : timeout_(std::chrono::steady_clock::now() + timeoutDuration) {} ElapsedTimeCheck(ElapsedTimeCheck&&) = delete; ElapsedTimeCheck& operator=(ElapsedTimeCheck&&) = delete; ~ElapsedTimeCheck() { assert(std::chrono::steady_clock::now() < timeout_); } std::chrono::time_point timeout_; }; #endif #endif // TEST_STD_THREAD_CONDITION_CONDVARANY_HELPERS_H