7fee8775a4
Summary: Allow EventLogger to directly log from a JSONWriter. This allows the JSONWriter to be shared by EventLogger and potentially EventListener, which is an important step to integrate EventLogger and EventListener. This patch also rewrites EventLoggerHelpers::LogTableFileCreation(), which uses the new API to generate identical log. Test Plan: Run db_bench in debug mode and make sure the log is correct and no assertions fail. Reviewers: sdong, anthony, igor Reviewed By: igor Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D38709
67 lines
1.7 KiB
C++
67 lines
1.7 KiB
C++
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#ifndef __STDC_FORMAT_MACROS
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#define __STDC_FORMAT_MACROS
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#endif
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#include "util/event_logger.h"
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#include <inttypes.h>
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#include <cassert>
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#include <sstream>
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#include <string>
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#include "util/string_util.h"
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namespace rocksdb {
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EventLoggerStream::EventLoggerStream(Logger* logger)
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: logger_(logger), log_buffer_(nullptr), json_writer_(nullptr) {}
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EventLoggerStream::EventLoggerStream(LogBuffer* log_buffer)
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: logger_(nullptr), log_buffer_(log_buffer), json_writer_(nullptr) {}
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EventLoggerStream::~EventLoggerStream() {
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if (json_writer_) {
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json_writer_->EndObject();
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#ifdef ROCKSDB_PRINT_EVENTS_TO_STDOUT
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printf("%s\n", json_writer_->Get().c_str());
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#else
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if (logger_) {
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EventLogger::Log(logger_, *json_writer_);
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} else if (log_buffer_) {
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EventLogger::LogToBuffer(log_buffer_, *json_writer_);
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}
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#endif
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delete json_writer_;
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}
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}
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void EventLogger::Log(const JSONWriter& jwriter) {
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Log(logger_, jwriter);
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}
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void EventLogger::Log(Logger* logger, const JSONWriter& jwriter) {
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#ifdef ROCKSDB_PRINT_EVENTS_TO_STDOUT
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printf("%s\n", jwriter.Get().c_str());
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#else
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rocksdb::Log(logger, "%s %s", Prefix(), jwriter.Get().c_str());
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#endif
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}
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void EventLogger::LogToBuffer(
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LogBuffer* log_buffer, const JSONWriter& jwriter) {
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#ifdef ROCKSDB_PRINT_EVENTS_TO_STDOUT
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printf("%s\n", jwriter.Get().c_str());
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#else
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assert(log_buffer);
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rocksdb::LogToBuffer(log_buffer, "%s %s", Prefix(), jwriter.Get().c_str());
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#endif
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}
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} // namespace rocksdb
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