CAThreadPool.cpp File Reference

#include "StdAfx.h"
#include "CAThreadPool.hpp"
#include "CAMsg.hpp"

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Functions
void *	tpool_thread (void *)
THREAD_RETURN	worker_thread_main_loop (void *arg)

---

Function Documentation

void* tpool_thread

(

void *

)

THREAD_RETURN worker_thread_main_loop

(

void *

arg

)

Definition at line 155 of file CAThreadPool.cpp.

References tpool_work::arg, CAConditionVariable::broadcast(), CAMutex::lock(), CAThreadPool::m_bDoNotBlockWhenFull, CAThreadPool::m_bShutdown, CAThreadPool::m_CurQueueSize, CAThreadPool::m_MaxQueueSize, CAThreadPool::m_pcondEmpty, CAThreadPool::m_pcondNotEmpty, CAThreadPool::m_pcondNotFull, CAThreadPool::m_pmutexQueue, CAThreadPool::m_pQueueHead, CAThreadPool::m_pQueueTail, tpool_work::next, tpool_work::routine, CAConditionVariable::signal(), THREAD_RETURN_SUCCESS, CAMutex::unlock(), and CAConditionVariable::wait().

{
  CAThreadPool* pPool = (CAThreadPool*)arg; 
  tpool_work_t  *my_workp;
  
  for(;;)
    {
    // Check queue for work  
      pPool->m_pmutexQueue->lock();
      while ((pPool->m_CurQueueSize == 0) && (!pPool->m_bShutdown))
        {
          pPool->m_pcondNotEmpty->wait(pPool->m_pmutexQueue);
        }
      //sSleep(5); 
      // Has a shutdown started while i was sleeping? 
      if (pPool->m_bShutdown)
        {
          pPool->m_pmutexQueue->unlock();
          THREAD_RETURN_SUCCESS;
        }

      // Get to work, dequeue the next item  
      my_workp = pPool->m_pQueueHead;
      pPool->m_CurQueueSize--;
      if (pPool->m_CurQueueSize == 0)
        pPool->m_pQueueHead = pPool->m_pQueueTail = NULL;
      else
        pPool->m_pQueueHead = my_workp->next;
 
      // Handle waiting add_work threads 
      if ((!pPool->m_bDoNotBlockWhenFull) &&
          (pPool->m_CurQueueSize ==  (pPool->m_MaxQueueSize - 1))) 
          pPool->m_pcondNotFull->broadcast();
      // Handle waiting destroyer threads 
      if (pPool->m_CurQueueSize == 0)
        pPool->m_pcondEmpty->signal();
      pPool->m_pmutexQueue->unlock();
      
      // Do this work item 
      (*(my_workp->routine))(my_workp->arg);
      delete my_workp;
      my_workp = NULL;
  } 
}

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