webrtc/test/testsupport/perf_test_histogram_writer.h
Patrik Höglund 2ea27968d3 Extract an interface from the perf results logger.
The new interface is called PerfTestResultWriter and is currently
implemented by PerfResultsLogger (renamed PerfTestGraphJsonWriter).

I plan to introduce a second implementation of the perf logger that
uses the new Histogram C++ API. I add a flag that chooses
between the two implementations so I can try it out (perhaps by
setting up a second, limited run of webrtc_perf_tests on the perf
bots that uses the new implementation). The histogram C++
implementation will come in the next patch.

As a side effect, I disentangled the plottable counter printer from
the perf result printer so it will work for both implementations.
The only thing they had in common was that both wrote JSON anyway.

See the bug for details on the new API.

Bug: chromium:1029452
Change-Id: Icb21b25ced08ea73aeecd221e9d51f2adf3dab1b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/165389
Reviewed-by: Artem Titov <titovartem@webrtc.org>
Commit-Queue: Patrik Höglund <phoglund@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#30243}
2020-01-14 06:05:02 +00:00

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C++

/*
* Copyright (c) 2020 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef TEST_TESTSUPPORT_PERF_TEST_HISTOGRAM_WRITER_H_
#define TEST_TESTSUPPORT_PERF_TEST_HISTOGRAM_WRITER_H_
#include "test/testsupport/perf_test_result_writer.h"
namespace webrtc {
namespace test {
PerfTestResultWriter* CreateHistogramWriter();
} // namespace test
} // namespace webrtc
#endif // TEST_TESTSUPPORT_PERF_TEST_HISTOGRAM_WRITER_H_