rocksdb/util/stderr_logger.h
WangQian f471e56190 fix the non initialized bug in StderrLogger. (#12839)
Summary:
This PR is intended to fix a potential uninitialized variable bug.

Fixes https://github.com/facebook/rocksdb/issues/12837

Pull Request resolved: https://github.com/facebook/rocksdb/pull/12839

Reviewed By: ajkr

Differential Revision: D59398888

Pulled By: cbi42

fbshipit-source-id: 337391d7c1e73c0ff61797f88fbb4a8379500211
2024-07-08 15:59:02 -07:00

42 lines
1.2 KiB
C++

// Copyright (c) Meta Platforms, Inc. and affiliates.
//
// 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).
#pragma once
#include <stdarg.h>
#include <stdio.h>
#include "rocksdb/env.h"
namespace ROCKSDB_NAMESPACE {
// Prints logs to stderr for faster debugging
class StderrLogger : public Logger {
public:
explicit StderrLogger(const InfoLogLevel log_level = InfoLogLevel::INFO_LEVEL)
: Logger(log_level), log_prefix(nullptr), log_prefix_len(0) {}
explicit StderrLogger(const InfoLogLevel log_level, const std::string prefix)
: Logger(log_level),
log_prefix(strdup(prefix.c_str())),
log_prefix_len(strlen(log_prefix)) {}
~StderrLogger() override;
// Brings overloaded Logv()s into scope so they're not hidden when we override
// a subset of them.
using Logger::Logv;
void Logv(const char* format, va_list ap) override;
private:
// This prefix will be appended after the time/thread info of every log
const char* log_prefix;
// The length of the log_prefix
size_t log_prefix_len;
};
} // namespace ROCKSDB_NAMESPACE