1/*
2**
3** Copyright 2015, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18#ifndef ANDROID_SERVICELOG_H
19#define ANDROID_SERVICELOG_H
20
21#include <utils/Errors.h>
22#include <utils/String8.h>
23#include <utils/threads.h>
24#include <utils/Vector.h>
25
26#include "media/RingBuffer.h"
27
28namespace android {
29
30class ServiceLog : public RefBase {
31public:
32    ServiceLog();
33    explicit ServiceLog(size_t maxNum);
34
35    void add(const String8 &log);
36    String8 toString(const char *linePrefix = NULL) const;
37
38private:
39    size_t mMaxNum;
40    mutable Mutex mLock;
41    RingBuffer<String8> mLogs;
42
43    void addLine(const char *log, const char *prefix, String8 *result) const;
44};
45
46// ----------------------------------------------------------------------------
47
48}; // namespace android
49
50#endif // ANDROID_SERVICELOG_H
51