mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.6 KiB
82 lines
2.6 KiB
/* |
|
* |
|
* Copyright 2015, Google Inc. |
|
* All rights reserved. |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions are |
|
* met: |
|
* |
|
* * Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* * Redistributions in binary form must reproduce the above |
|
* copyright notice, this list of conditions and the following disclaimer |
|
* in the documentation and/or other materials provided with the |
|
* distribution. |
|
* * Neither the name of Google Inc. nor the names of its |
|
* contributors may be used to endorse or promote products derived from |
|
* this software without specific prior written permission. |
|
* |
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
|
* |
|
*/ |
|
|
|
#ifndef GRPCXX_DYNAMIC_THREAD_POOL_H |
|
#define GRPCXX_DYNAMIC_THREAD_POOL_H |
|
|
|
#include <grpc++/config.h> |
|
|
|
#include <grpc++/impl/sync.h> |
|
#include <grpc++/impl/thd.h> |
|
#include <grpc++/thread_pool_interface.h> |
|
|
|
#include <list> |
|
#include <memory> |
|
#include <queue> |
|
|
|
namespace grpc { |
|
|
|
class DynamicThreadPool GRPC_FINAL : public ThreadPoolInterface { |
|
public: |
|
explicit DynamicThreadPool(int reserve_threads); |
|
~DynamicThreadPool(); |
|
|
|
void Add(const std::function<void()>& callback) GRPC_OVERRIDE; |
|
|
|
private: |
|
class DynamicThread { |
|
public: |
|
DynamicThread(DynamicThreadPool *pool); |
|
~DynamicThread(); |
|
private: |
|
DynamicThreadPool *pool_; |
|
std::unique_ptr<grpc::thread> thd_; |
|
void ThreadFunc(); |
|
}; |
|
grpc::mutex mu_; |
|
grpc::condition_variable cv_; |
|
grpc::condition_variable shutdown_cv_; |
|
bool shutdown_; |
|
std::queue<std::function<void()>> callbacks_; |
|
int reserve_threads_; |
|
int nthreads_; |
|
int threads_waiting_; |
|
std::list<DynamicThread*> dead_threads_; |
|
|
|
void ThreadFunc(); |
|
static void ReapThreads(std::list<DynamicThread*>* tlist); |
|
}; |
|
|
|
} // namespace grpc |
|
|
|
#endif // GRPCXX_DYNAMIC_THREAD_POOL_H
|
|
|