| /* |
| ** |
| ** Copyright 2015, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| //#define LOG_NDEBUG 0 |
| #define LOG_TAG "ServiceLog" |
| #include <utils/Log.h> |
| |
| #include <time.h> |
| |
| #include "ServiceLog.h" |
| |
| static const size_t kDefaultMaxNum = 100; |
| |
| namespace android { |
| |
| ServiceLog::ServiceLog() : mMaxNum(kDefaultMaxNum), mLogs(mMaxNum) {} |
| ServiceLog::ServiceLog(size_t maxNum) : mMaxNum(maxNum), mLogs(mMaxNum) {} |
| |
| void ServiceLog::add(const String8 &log) { |
| Mutex::Autolock lock(mLock); |
| time_t now = time(0); |
| char buf[64]; |
| strftime(buf, sizeof(buf), "%m-%d %T", localtime(&now)); |
| mLogs.add(String8::format("%s %s", buf, log.string())); |
| } |
| |
| String8 ServiceLog::toString(const char *linePrefix) const { |
| Mutex::Autolock lock(mLock); |
| String8 result; |
| for (const auto& log : mLogs) { |
| addLine(log.string(), linePrefix, &result); |
| } |
| if (mLogs.size() == mMaxNum) { |
| addLine("...", linePrefix, &result); |
| } else if (mLogs.size() == 0) { |
| addLine("[no events yet]", linePrefix, &result); |
| } |
| return result; |
| } |
| |
| void ServiceLog::addLine(const char *log, const char *prefix, String8 *result) const { |
| if (prefix != NULL) { |
| result->append(prefix); |
| } |
| result->append(log); |
| result->append("\n"); |
| } |
| |
| } // namespace android |