rocksdb/port/win/win_logger.h
Dmitri Smirnov c364eb42b5 Windows cumulative patch
Summary:
This patch addressed several issues.
  Portability including db_test std::thread -> port::Thread Cc: @
  and %z to ROCKSDB portable macro. Cc: maysamyabandeh

  Implement Env::AreFilesSame

  Make the implementation of file unique number more robust

  Get rid of C-runtime and go directly to Windows API when dealing
  with file primitives.

  Implement GetSectorSize() and aling unbuffered read on the value if
  available.

  Adjust Windows Logger for the new interface, implement CloseImpl() Cc: anand1976

  Fix test running script issue where $status var was of incorrect scope
  so the failures were swallowed and not reported.

  DestroyDB() creates a logger and opens a LOG file in the directory
  being cleaned up. This holds a lock on the folder and the cleanup is
  prevented. This fails one of the checkpoin tests. We observe the same in production.
  We close the log file in this change.

 Fix DBTest2.ReadAmpBitmapLiveInCacheAfterDBClose failure where the test
 attempts to open a directory with NewRandomAccessFile which does not
 work on Windows.
  Fix DBTest.SoftLimit as it is dependent on thread timing. CC: yiwu-arbug
Closes https://github.com/facebook/rocksdb/pull/3552

Differential Revision: D7156304

Pulled By: siying

fbshipit-source-id: 43db0a757f1dfceffeb2b7988043156639173f5b
2018-03-06 11:57:43 -08:00

68 lines
1.6 KiB
C++

// 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 <atomic>
#include "rocksdb/env.h"
#include <stdint.h>
#include <windows.h>
namespace rocksdb {
class Env;
namespace port {
class WinLogger : public rocksdb::Logger {
public:
WinLogger(uint64_t (*gettid)(), Env* env, 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::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_;
Env* env_;
bool flush_pending_;
Status CloseInternal();
const static uint64_t flush_every_seconds_ = 5;
};
}
} // namespace rocksdb