Author: ericwf Date: Sat Jun 18 13:32:26 2016 New Revision: 273091 URL: http://llvm.org/viewvc/llvm-project?rev=273091&view=rev Log: Fix SleepFor(...) helper when a monotonic clock is not available.
Single threaded builds often don't provide a monotonic clock, so we can't always provide a monotonic SleepFor(...) implementation. Hopefully this won't cause the builds to hang. Modified: libcxx/trunk/test/support/filesystem_test_helper.hpp Modified: libcxx/trunk/test/support/filesystem_test_helper.hpp URL: http://llvm.org/viewvc/llvm-project/libcxx/trunk/test/support/filesystem_test_helper.hpp?rev=273091&r1=273090&r2=273091&view=diff ============================================================================== --- libcxx/trunk/test/support/filesystem_test_helper.hpp (original) +++ libcxx/trunk/test/support/filesystem_test_helper.hpp Sat Jun 18 13:32:26 2016 @@ -388,9 +388,13 @@ inline std::error_code GetTestEC() { // available in single-threaded mode. void SleepFor(std::chrono::seconds dur) { using namespace std::chrono; - const auto curr_time = steady_clock::now(); - auto wake_time = curr_time + dur; - while (steady_clock::now() < wake_time) +#if defined(_LIBCPP_HAS_NO_MONOTONIC_CLOCK) + using Clock = system_clock; +#else + using Clock = steady_clock; +#endif + const auto wake_time = Clock::now() + dur; + while (Clock::now() < wake_time) ; } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits