1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_LOG_BUFFER_H_
#define CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_LOG_BUFFER_H_
#include <string>
#include "base/sequence_checker.h"
#include "build/build_config.h"
#include "components/webrtc_logging/common/partial_circular_buffer.h"
#if BUILDFLAG(IS_ANDROID)
inline constexpr size_t kWebRtcLogSize = 1 * 1024 * 1024; // 1 MB
#else
inline constexpr size_t kWebRtcLogSize = 6 * 1024 * 1024; // 6 MB
#endif
class WebRtcLogBuffer {
public:
WebRtcLogBuffer();
~WebRtcLogBuffer();
void Log(const std::string& message);
// Returns a circular buffer instance for reading the internal log buffer.
// Must only be called after the log has been marked as complete
// (see SetComplete) and the caller must ensure that the WebRtcLogBuffer
// instance remains in scope for the lifetime of the returned circular buffer.
webrtc_logging::PartialCircularBuffer Read();
// Switches the buffer to read-only mode, where access to the internal
// buffer is allowed from different threads than were used to contribute
// to the log. Calls to Log() won't be allowed after calling
// SetComplete() and the call to SetComplete() must be done on the same
// thread as constructed the buffer and calls Log().
void SetComplete();
private:
SEQUENCE_CHECKER(sequence_checker_);
uint8_t buffer_[kWebRtcLogSize];
webrtc_logging::PartialCircularBuffer circular_;
bool read_only_;
};
#endif // CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_LOG_BUFFER_H_
|
