fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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37 lines
1.3 KiB
37 lines
1.3 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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#pragma once
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namespace rocksdb {
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/*
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* ThreadPool is a component that will spawn N background threads that will
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* be used to execute scheduled work, The number of background threads could
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* be modified by calling SetBackgroundThreads().
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* */
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class ThreadPool {
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public:
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virtual ~ThreadPool() {}
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// Wait for all threads to finish.
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virtual void JoinAllThreads() = 0;
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// Set the number of background threads that will be executing the
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// scheduled jobs.
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virtual void SetBackgroundThreads(int num) = 0;
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// Get the number of jobs scheduled in the ThreadPool queue.
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virtual unsigned int GetQueueLen() const = 0;
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};
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// NewThreadPool() is a function that could be used to create a ThreadPool
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// with `num_threads` background threads.
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extern ThreadPool* NewThreadPool(int num_threads);
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} // namespace rocksdb
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