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/*
**
** 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
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