chromium/third_party/grpc/src/src/core/lib/gprpp/mpscq.h

//
//
// Copyright 2016 gRPC authors.
//
// 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 GRPC_SRC_CORE_LIB_GPRPP_MPSCQ_H
#define GRPC_SRC_CORE_LIB_GPRPP_MPSCQ_H

#include <grpc/support/port_platform.h>

#include <atomic>

#include <grpc/support/log.h>

#include "src/core/lib/gprpp/sync.h"

namespace grpc_core {

// Multiple-producer single-consumer lock free queue, based upon the
// implementation from Dmitry Vyukov here:
// http://www.1024cores.net/home/lock-free-algorithms/queues/intrusive-mpsc-node-based-queue
class MultiProducerSingleConsumerQueue { … };

// An mpscq with a lock: it's safe to pop from multiple threads, but doing
// only one thread will succeed concurrently.
class LockedMultiProducerSingleConsumerQueue { … };

}  // namespace grpc_core

#endif  // GRPC_SRC_CORE_LIB_GPRPP_MPSCQ_H