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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
//
// Logger implementation that can be shared by all environments
// where enough posix functionality is available.
#pragma once
#include <stdint.h>
#include <windows.h>
#include <atomic>
#include <memory>
#include "rocksdb/env.h"
namespace ROCKSDB_NAMESPACE {
class SystemClock;
namespace port {
class WinLogger : public ROCKSDB_NAMESPACE::Logger {
public:
WinLogger(uint64_t (*gettid)(), SystemClock* clock, HANDLE file,
const InfoLogLevel log_level = InfoLogLevel::ERROR_LEVEL);
virtual ~WinLogger();
WinLogger(const WinLogger&) = delete;
WinLogger& operator=(const WinLogger&) = delete;
void Flush() override;
using ROCKSDB_NAMESPACE::Logger::Logv;
void Logv(const char* format, va_list ap) override;
size_t GetLogFileSize() const override;
void DebugWriter(const char* str, int len);
protected:
Status CloseImpl() override;
private:
HANDLE file_;
uint64_t (*gettid_)(); // Return the thread id for the current thread
std::atomic_size_t log_size_;
std::atomic_uint_fast64_t last_flush_micros_;
SystemClock* clock_;
bool flush_pending_;
Status CloseInternal();
const static uint64_t flush_every_seconds_ = 5;
};
} // namespace port
} // namespace ROCKSDB_NAMESPACE
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