2 * Copyright 2017-present Facebook, Inc.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include <folly/experimental/logging/LogHandlerFactory.h>
23 * StreamHandlerFactory is a LogHandlerFactory that constructs log handlers
24 * that write to stdout or stderr.
26 * This is quite similar to FileHandlerFactory, but it always writes to an
27 * existing open file descriptor rather than opening a new file. This handler
28 * factory is separate from FileHandlerFactory primarily for safety reasons:
29 * FileHandlerFactory supports appending to arbitrary files via config
30 * parameters, while StreamHandlerFactory does not.
32 class StreamHandlerFactory : public LogHandlerFactory {
34 StringPiece getType() const override {
38 std::shared_ptr<LogHandler> createHandler(const Options& options) override;