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132 lines
2.8 KiB
C++
132 lines
2.8 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include "grpc/gen-status/status.grpc.pb.h"
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#include "grpc/gen-status/status.pb.h"
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#include "utils/BlockingQueue.h"
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#include "utils/Status.h"
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#include <map>
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#include <memory>
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#include <string>
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#include <thread>
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#include <vector>
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namespace milvus {
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namespace server {
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namespace grpc {
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class GrpcBaseTask {
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protected:
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explicit GrpcBaseTask(const std::string& task_group, bool async = false);
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virtual ~GrpcBaseTask();
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public:
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Status
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Execute();
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void
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Done();
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Status
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WaitToFinish();
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std::string
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TaskGroup() const {
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return task_group_;
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}
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const Status&
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status() const {
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return status_;
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}
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bool
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IsAsync() const {
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return async_;
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}
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protected:
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virtual Status
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OnExecute() = 0;
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Status
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SetStatus(ErrorCode error_code, const std::string& error_msg);
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protected:
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mutable std::mutex finish_mtx_;
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std::condition_variable finish_cond_;
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std::string task_group_;
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bool async_;
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bool done_;
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Status status_;
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};
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using BaseTaskPtr = std::shared_ptr<GrpcBaseTask>;
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using TaskQueue = BlockingQueue<BaseTaskPtr>;
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using TaskQueuePtr = std::shared_ptr<TaskQueue>;
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using ThreadPtr = std::shared_ptr<std::thread>;
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class GrpcRequestScheduler {
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public:
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static GrpcRequestScheduler&
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GetInstance() {
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static GrpcRequestScheduler scheduler;
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return scheduler;
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}
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void
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Start();
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void
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Stop();
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Status
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ExecuteTask(const BaseTaskPtr& task_ptr);
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static void
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ExecTask(BaseTaskPtr& task_ptr, ::milvus::grpc::Status* grpc_status);
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protected:
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GrpcRequestScheduler();
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virtual ~GrpcRequestScheduler();
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void
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TakeTaskToExecute(TaskQueuePtr task_queue);
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Status
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PutTaskToQueue(const BaseTaskPtr& task_ptr);
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private:
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mutable std::mutex queue_mtx_;
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std::map<std::string, TaskQueuePtr> task_groups_;
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std::vector<ThreadPtr> execute_threads_;
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bool stopped_;
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};
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} // namespace grpc
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} // namespace server
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} // namespace milvus
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