64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <folly/logging/FileWriterFactory.h>
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#include <folly/Conv.h>
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#include <folly/File.h>
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#include <folly/logging/AsyncFileWriter.h>
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#include <folly/logging/ImmediateFileWriter.h>
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using std::make_shared;
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using std::string;
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namespace folly {
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bool FileWriterFactory::processOption(StringPiece name, StringPiece value) {
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if (name == "async") {
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async_ = to<bool>(value);
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return true;
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} else if (name == "max_buffer_size") {
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auto size = to<size_t>(value);
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if (size == 0) {
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throw std::invalid_argument(to<string>("must be a positive integer"));
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}
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maxBufferSize_ = size;
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return true;
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} else {
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return false;
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}
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}
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std::shared_ptr<LogWriter> FileWriterFactory::createWriter(File file) {
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// Determine whether we should use ImmediateFileWriter or AsyncFileWriter
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if (async_) {
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auto asyncWriter = make_shared<AsyncFileWriter>(std::move(file));
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if (maxBufferSize_.has_value()) {
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asyncWriter->setMaxBufferSize(maxBufferSize_.value());
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}
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return asyncWriter;
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} else {
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if (maxBufferSize_.has_value()) {
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throw std::invalid_argument(to<string>(
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"the \"max_buffer_size\" option is only valid for async file "
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"handlers"));
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}
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return make_shared<ImmediateFileWriter>(std::move(file));
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}
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}
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} // namespace folly
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