milvus/cpp/src/utils/BlockingQueue.h
jinhai 9433bf81cc MS-554 Change license to apache 2.0
Former-commit-id: e09b7dd7872372fa0ece9f5d18ec4c316b89cbe8
2019-09-17 10:51:48 +08:00

67 lines
1.5 KiB
C++

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.
#pragma once
#include <assert.h>
#include <condition_variable>
#include <iostream>
#include <queue>
#include <vector>
namespace zilliz {
namespace milvus {
namespace server {
template<typename T>
class BlockingQueue {
public:
BlockingQueue() : mtx(), full_(), empty_() {}
BlockingQueue(const BlockingQueue &rhs) = delete;
BlockingQueue &operator=(const BlockingQueue &rhs) = delete;
void Put(const T &task);
T Take();
T Front();
T Back();
size_t Size();
bool Empty();
void SetCapacity(const size_t capacity);
private:
mutable std::mutex mtx;
std::condition_variable full_;
std::condition_variable empty_;
std::queue<T> queue_;
size_t capacity_ = 32;
};
}
}
}
#include "./BlockingQueue.inl"