Import Geant4 10.7.0.beta source tree
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Gabriele Cosmo
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//
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// MIT License
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// Copyright (c) 2020 Jonathan R. Madsen
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED
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// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// ---------------------------------------------------------------
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// Tasking class header file
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//
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// Class Description:
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//
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// This file defines types and macros used to expose Tasking threading model.
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#pragma once
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#include "PTL/Globals.hh"
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#include "PTL/Types.hh"
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#include <chrono>
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#include <condition_variable>
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#include <future>
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#include <mutex>
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#include <thread>
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#include <vector>
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namespace PTL
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{
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// Macro to put current thread to sleep
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//
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#define THREADSLEEP(tick) std::this_thread::sleep_for(std::chrono::seconds(tick))
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// will be used in the future when migrating threading to task-based style
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template <typename _Tp>
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using Future = std::future<_Tp>;
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template <typename _Tp>
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using SharedFuture = std::shared_future<_Tp>;
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template <typename _Tp>
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using Promise = std::promise<_Tp>;
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//
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// NOTE ON Tasking SERIAL BUILDS AND MUTEX/UNIQUE_LOCK
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// ==================================================
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//
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// Mutex and RecursiveMutex are always C++11 std::mutex types
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// however, in serial mode, using MUTEXLOCK and MUTEXUNLOCK on these
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// types has no effect -- i.e. the mutexes are not actually locked or unlocked
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//
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// Additionally, when a Mutex or RecursiveMutex is used with AutoLock
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// and RecursiveAutoLock, respectively, these classes also suppressing
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// the locking and unlocking of the mutex. Regardless of the build type,
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// AutoLock and RecursiveAutoLock inherit from std::unique_lock<std::mutex>
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// and std::unique_lock<std::recursive_mutex>, respectively. This means
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// that in situations (such as is needed by the analysis category), the
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// AutoLock and RecursiveAutoLock can be passed to functions requesting
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// a std::unique_lock. Within these functions, since std::unique_lock
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// member functions are not virtual, they will not retain the dummy locking
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// and unlocking behavior
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// --> An example of this behavior can be found in AutoLock.hh
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//
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// Jonathan R. Madsen (February 21, 2018)
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//
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// global mutex types
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typedef std::mutex Mutex;
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typedef std::recursive_mutex RecursiveMutex;
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// mutex macros
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#define MUTEX_INITIALIZER \
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{}
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#define MUTEXINIT(mutex) \
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; \
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;
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#define MUTEXDESTROY(mutex) \
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; \
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;
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// static functions: get_id(), sleep_for(...), sleep_until(...), yield(),
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namespace ThisThread
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{
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using namespace std::this_thread;
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}
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// will be used in the future when migrating threading to task-based style
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// and are currently used in unit tests
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template <typename _Tp>
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using Promise = std::promise<_Tp>;
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template <typename _Tp>
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using Future = std::future<_Tp>;
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template <typename _Tp>
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using SharedFuture = std::shared_future<_Tp>;
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// Some useful types
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typedef void* ThreadFunReturnType;
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typedef void* ThreadFunArgType;
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typedef int (*thread_lock)(Mutex*);
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typedef int (*thread_unlock)(Mutex*);
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// Helper function for getting a unique static mutex for a specific
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// class or type
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// Usage example:
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// a template class "Cache<T>" that required a static
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// mutex for specific to type T:
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// AutoLock l(TypeMutex<Cache<T>>());
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template <typename _Tp>
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Mutex&
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TypeMutex(const unsigned int& _n = 0)
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{
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static Mutex* _mutex = new Mutex();
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if(_n == 0)
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return *_mutex;
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static std::vector<Mutex*> _mutexes;
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if(_n > _mutexes.size())
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_mutexes.resize(_n, nullptr);
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if(!_mutexes[_n])
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_mutexes[_n] = new Mutex();
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return *(_mutexes[_n - 1]);
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}
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// Helper function for getting a unique static recursive_mutex for a
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// specific class or type
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// Usage example:
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// a template class "Cache<T>" that required a static
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// recursive_mutex for specific to type T:
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// RecursiveAutoLock l(TypeRecursiveMutex<Cache<T>>());
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template <typename _Tp>
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RecursiveMutex&
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TypeRecursiveMutex(const unsigned int& _n = 0)
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{
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static RecursiveMutex* _mutex = new RecursiveMutex();
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if(_n == 0)
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return *(_mutex);
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static std::vector<RecursiveMutex*> _mutexes;
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if(_n > _mutexes.size())
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_mutexes.resize(_n, nullptr);
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if(!_mutexes[_n])
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_mutexes[_n] = new RecursiveMutex();
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return *(_mutexes[_n - 1]);
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}
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//======================================================================================//
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// global thread types
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typedef std::thread Thread;
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typedef std::thread::native_handle_type NativeThread;
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// mutex macros
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#define MUTEXLOCK(mutex) \
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{ \
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(mutex)->lock(); \
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}
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#define MUTEXUNLOCK(mutex) \
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{ \
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(mutex)->unlock(); \
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}
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// Macro to join thread
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#define THREADJOIN(worker) (worker).join()
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// std::thread::id does not cast to integer
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typedef std::thread::id Pid_t;
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// Instead of previous macro taking one argument, define function taking
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// unlimited arguments
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template <typename _Worker, typename _Func, typename... _Args>
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void
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THREADCREATE(_Worker*& worker, _Func func, _Args... args)
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{
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*worker = Thread(func, std::forward<_Args>(args)...);
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}
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// Conditions
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//
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// See MTRunManager for example on how to use these
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//
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typedef std::condition_variable Condition;
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#define CONDITION_INITIALIZER \
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{}
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#define CONDITIONWAIT(cond, lock) (cond)->wait(*lock);
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#define CONDITIONWAITLAMBDA(cond, lock, lambda) (cond)->wait(*lock, lambda);
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#define CONDITIONNOTIFY(cond) (cond)->notify_one();
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#define CONDITIONBROADCAST(cond) (cond)->notify_all();
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//
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//======================================================================================//
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// Define here after Thread has been typedef
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typedef Thread::id ThreadId;
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//======================================================================================//
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namespace Threading
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{
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enum
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{
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SEQUENTIAL_ID = -2,
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MASTER_ID = -1,
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WORKER_ID = 0,
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GENERICTHREAD_ID = -1000
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};
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Pid_t
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GetPidId();
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unsigned
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GetNumberOfCores();
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int
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GetThreadId();
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bool
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IsWorkerThread();
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bool
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IsMasterThread();
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void
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SetThreadId(int aNewValue);
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bool
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SetPinAffinity(int idx, NativeThread& at);
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int
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WorkerThreadLeavesPool();
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int
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WorkerThreadJoinsPool();
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int
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GetNumberOfRunningWorkerThreads();
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} // namespace Threading
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} // namespace PTL
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