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