webrtc_m130/webrtc/test/testsupport/trace_to_stderr.h
andrew@webrtc.org 59aaebc3cd Add an option to override the TestToStderr trace printout time.
This is useful for offline file-based tests.

R=kjellander@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1407004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@3960 4adac7df-926f-26a2-2b94-8c16560cd09d
2013-05-05 19:44:19 +00:00

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1.8 KiB
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/*
* Copyright (c) 2013 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 WEBRTC_TEST_TEST_SUPPORT_TRACE_TO_STDERR_H_
#define WEBRTC_TEST_TEST_SUPPORT_TRACE_TO_STDERR_H_
#include "webrtc/system_wrappers/interface/trace.h"
namespace webrtc {
namespace test {
// Upon constructing an instance of this class, all traces will be redirected
// to stderr. At destruction, redirection is halted.
class TraceToStderr : public TraceCallback {
public:
TraceToStderr();
// Set |override_time| to true to control the time printed with each trace
// through SetTimeSeconds(). Otherwise, the trace's usual wallclock time is
// used.
//
// This is useful for offline test tools, where the file time is much more
// informative than the real time.
explicit TraceToStderr(bool override_time);
virtual ~TraceToStderr();
// Every subsequent trace printout will use |time|. Has no effect if
// |override_time| in the constructor was set to false.
//
// No attempt is made to ensure thread-safety between the trace writing and
// time updating. In tests, since traces will normally be triggered by the
// main thread doing the time updating, this should be of no concern.
virtual void SetTimeSeconds(float time) { time_seconds_ = time; }
// Implements TraceCallback.
virtual void Print(TraceLevel level, const char* msg_array, int length);
private:
bool override_time_;
float time_seconds_;
};
} // namespace test
} // namespace webrtc
#endif // WEBRTC_TEST_TEST_SUPPORT_TRACE_TO_STDERR_H_