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1502a40b68
Updates the pw_trace_tokenized's host_trace_time backend to use the std::chrono::steady_clock which is monotonic, instead of the std::chrono::system_clock which may unexpectedly jump backwards causing odd trace artifacts. Change-Id: I42749e7a8272650c23f2ff420615a23191df3b1a Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/23222 Reviewed-by: Rob Oliver <rgoliver@google.com> Reviewed-by: Keir Mierle <keir@google.com> Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com> Pigweed-Auto-Submit: Ewout van Bekkum <ewout@google.com>
37 lines
1.1 KiB
C++
37 lines
1.1 KiB
C++
// Copyright 2020 The Pigweed Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not
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// use this file except in compliance with the License. You may obtain a copy of
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// the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations under
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// the License.
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//==============================================================================
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//
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#include <chrono>
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#include "pw_trace_tokenized/trace_tokenized.h"
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using namespace std::chrono;
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namespace {
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auto start = steady_clock::now();
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} // namespace
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// Define trace time as a counter for tests.
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PW_TRACE_TIME_TYPE pw_trace_GetTraceTime() {
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auto delta = steady_clock::now() - start;
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return duration_cast<microseconds>(delta).count();
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}
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// Microsecond time source
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size_t pw_trace_GetTraceTimeTicksPerSecond() { return 1000000; }
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