ddnet/src/engine/shared/jobs.h

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/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com. */
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#ifndef ENGINE_SHARED_JOBS_H
#define ENGINE_SHARED_JOBS_H
#include <base/system.h>
#include <atomic>
#include <memory>
class IJob;
class CJobPool;
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class IJob
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{
friend class CJobPool;
private:
std::shared_ptr<IJob> m_pNext;
std::atomic<int> m_Status;
virtual void Run() = 0;
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public:
IJob();
IJob(const IJob &Other);
IJob &operator=(const IJob &Other);
virtual ~IJob();
int Status();
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enum
{
STATE_PENDING=0,
STATE_RUNNING,
STATE_DONE
};
};
class CJobPool
{
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enum
{
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MAX_THREADS=32
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};
int m_NumThreads;
void *m_apThreads[MAX_THREADS];
std::atomic<bool> m_Shutdown;
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LOCK m_Lock;
SEMAPHORE m_Semaphore;
std::shared_ptr<IJob> m_pFirstJob;
std::shared_ptr<IJob> m_pLastJob;
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static void WorkerThread(void *pUser);
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public:
CJobPool();
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~CJobPool();
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void Init(int NumThreads);
void Add(std::shared_ptr<IJob> pJob);
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};
#endif