sandboxed-api/sandboxed_api/sandbox2/logsink.h

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// Copyright 2019 Google LLC. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SANDBOXED_API_SANDBOX2_LOGSINK_H_
#define SANDBOXED_API_SANDBOX2_LOGSINK_H_
#include <glog/logging.h>
#include "absl/synchronization/mutex.h"
#include "sandboxed_api/sandbox2/comms.h"
namespace sandbox2 {
// The LogSink will register itself with the logging facilities and forward all
// log messages to the executor on a given file descriptor.
class LogSink : public google::LogSink {
public:
static constexpr char kLogFDName[] = "sb2_logsink";
explicit LogSink(int fd);
~LogSink() override;
LogSink(const LogSink&) = delete;
LogSink& operator=(const LogSink&) = delete;
void send(google::LogSeverity severity, const char* full_filename,
const char* base_filename, int line, const struct tm* tm_time,
const char* message, size_t message_len) override;
private:
Comms comms_;
// Needed to make the LogSink thread safe.
absl::Mutex lock_;
};
} // namespace sandbox2
#endif // SANDBOXED_API_SANDBOX2_LOGSINK_H_