foundationdb/flow/FileTraceLogWriter.h

66 lines
1.8 KiB
C++

/*
* FileTraceLogWriter.h
*
* This source file is part of the FoundationDB open source project
*
* Copyright 2018 Apple Inc. and the FoundationDB project authors
*
* 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.
*/
#ifndef FLOW_FILE_TRACE_LOG_WRITER_H
#define FLOW_FILE_TRACE_LOG_WRITER_H
#pragma once
#include "FastRef.h"
#include "Trace.h"
#include <functional>
class FileTraceLogWriter : public ITraceLogWriter, ReferenceCounted<FileTraceLogWriter> {
private:
std::string directory;
std::string processName;
std::string basename;
std::string extension;
uint64_t maxLogsSize;
int traceFileFD;
int index;
std::function<void()> onError;
public:
FileTraceLogWriter(std::string directory, std::string processName, std::string basename, std::string extension, uint64_t maxLogsSize, std::function<void()> onError);
void addref();
void delref();
void lastError(int err);
void write(const std::string& str);
void open();
void close();
void roll();
void sync();
static void extractTraceFileNameInfo(std::string const& filename, std::string &root, int &index);
static bool compareTraceFileName (std::string const& f1, std::string const& f2);
static bool reverseCompareTraceFileName(std::string f1, std::string f2);
void cleanupTraceFiles();
};
#endif