mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-10 09:50:17 +02:00
99 lines
2.2 KiB
C++
99 lines
2.2 KiB
C++
/*
|
|
* CThreadHelper.h, part of VCMI engine
|
|
*
|
|
* Authors: listed in file AUTHORS in main folder
|
|
*
|
|
* License: GNU General Public License v2.0 or later
|
|
* Full text of license available in license.txt file, in main folder
|
|
*
|
|
*/
|
|
#pragma once
|
|
|
|
VCMI_LIB_NAMESPACE_BEGIN
|
|
|
|
|
|
///DEPRECATED
|
|
/// Can assign CPU work to other threads/cores
|
|
class DLL_LINKAGE CThreadHelper
|
|
{
|
|
public:
|
|
using Task = std::function<void()>;
|
|
CThreadHelper(std::vector<std::function<void()> > *Tasks, int Threads);
|
|
void run();
|
|
private:
|
|
boost::mutex rtinm;
|
|
int currentTask;
|
|
int amount;
|
|
int threads;
|
|
std::vector<Task> *tasks;
|
|
|
|
|
|
void processTasks();
|
|
};
|
|
|
|
template<typename Payload>
|
|
class ThreadPool
|
|
{
|
|
public:
|
|
using Task = std::function<void(std::shared_ptr<Payload>)>;
|
|
using Tasks = std::vector<Task>;
|
|
|
|
ThreadPool(Tasks * tasks_, std::vector<std::shared_ptr<Payload>> context_)
|
|
: currentTask(0),
|
|
amount(tasks_->size()),
|
|
threads(context_.size()),
|
|
tasks(tasks_),
|
|
context(context_)
|
|
{}
|
|
|
|
void run()
|
|
{
|
|
std::vector<boost::thread> group;
|
|
for(size_t i=0; i<threads; i++)
|
|
{
|
|
std::shared_ptr<Payload> payload = context.at(i);
|
|
group.emplace_back(std::bind(&ThreadPool::processTasks, this, payload));
|
|
}
|
|
|
|
for (auto & thread : group)
|
|
thread.join();
|
|
|
|
//thread group deletes threads, do not free manually
|
|
}
|
|
private:
|
|
boost::mutex rtinm;
|
|
size_t currentTask;
|
|
size_t amount;
|
|
size_t threads;
|
|
Tasks * tasks;
|
|
std::vector<std::shared_ptr<Payload>> context;
|
|
|
|
void processTasks(std::shared_ptr<Payload> payload)
|
|
{
|
|
while(true)
|
|
{
|
|
size_t pom;
|
|
{
|
|
boost::unique_lock<boost::mutex> lock(rtinm);
|
|
if((pom = currentTask) >= amount)
|
|
break;
|
|
else
|
|
++currentTask;
|
|
}
|
|
(*tasks)[pom](payload);
|
|
}
|
|
}
|
|
};
|
|
|
|
/// Sets thread name that will be used for both logs and debugger (if supported)
|
|
/// WARNING: on Unix-like systems this method should not be used for main thread since it will also change name of the process
|
|
void DLL_LINKAGE setThreadName(const std::string &name);
|
|
|
|
/// Sets thread name for use in logging only
|
|
void DLL_LINKAGE setThreadNameLoggingOnly(const std::string &name);
|
|
|
|
/// Returns human-readable thread name that was set before, or string form of system-provided thread ID if no human-readable name was set
|
|
std::string DLL_LINKAGE getThreadName();
|
|
|
|
VCMI_LIB_NAMESPACE_END
|