求win32多线程api转换为linux的具体实现代码

martmy

rt!~
  我现在需要对一个win32程序转化到linux下,在多线程问题上一直止步不前,高分求相应的具体实现,小弟在此谢过了~稍后将我的代码贴上~望各位指点以下~谢谢了~
  我现在重写的多线程函数主要有以下几个:SetEvent, ResetEvent, WaitForSingleObject, WaitForMultipleObjects！在我调试的过程中，总是在pthread_cond_timedwait时一直等待，但从我的跟踪可以看出，已经设定了事件了的~但依然阻塞，参考了很多的例程，不明白怎么回事~同时我的时间设了只有1ms。各位师兄是否有相关经验的指点一下，谢谢了
  另外我现在的linux环境是uclinux

martmy

怎么没有人回复阿？各位斑竹大人呢？这里是我的代码，大家看一下有什么问题呀，555

static void gettimespec(void *ptimespec, int offset)
{
  timeval now;
  timespec *ptime = (timespec *)ptimespec;

  gettimeofday(&now, NULL);
  ptime->;tv_sec = now.tv_sec;

  int   tmp     = now.tv_usec + offset * 1000;
  if(tmp < 1000 * 1000)
    ptime->;tv_nsec = tmp * 1000;
  else if(tmp < 2 * 1000 * 1000)
  {
    ptime->;tv_sec++;
    ptime->;tv_nsec      = (tmp - 1000 * 1000) * 1000;
  }
  else
  {
    int s       = tmp / (1000 * 1000);
    ptime->;tv_sec       += s;
    ptime->;tv_nsec      = (tmp - s * 1000 * 1000) * 1000;
  }
}


void init_recursive_mutex(void *m)
{
  static const pthread_mutex_t mutex_r = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;

  memcpy(m, &mutex_r, sizeof(mutex_r));
}

void init_normal_mutex(void *m)
{
  static const pthread_mutex_t mutex_n = PTHREAD_MUTEX_INITIALIZER;

  memcpy(m, &mutex_n, sizeof(mutex_n));
}

class EventCOND
{
private:
  int             eventcount;
  pthread_cond_t  cond;
  pthread_mutex_t wait_mutex;
  pthread_mutex_t event_mutex;
  pthread_mutex_t single_lock;

public:
  EventCOND()
  {
    eventcount = 0;
    pthread_cond_init(&cond, NULL);
    init_recursive_mutex(&event_mutex);
    pthread_mutex_init(&wait_mutex, NULL);
    init_recursive_mutex(&single_lock);
  }
  ~EventCOND()
  {
    pthread_cond_destroy(&cond);
  }
  void  SetEvent();
  void  ResetEvent();
  DWORD WaitSingle(DWORD dwMilliseconds);
};

void EventCOND::SetEvent()
{
  pthread_mutex_lock(&event_mutex);
  eventcount++;
  pthread_cond_broadcast(&cond);
  pthread_mutex_unlock(&event_mutex);
}
void EventCOND::ResetEvent()
{
  pthread_mutex_lock(&event_mutex);
  pthread_cond_destroy(&cond);
  pthread_cond_init(&cond, NULL);
  eventcount = 0;
  pthread_mutex_unlock(&event_mutex);
}

DWORD EventCOND::WaitSingle(DWORD dwMilliseconds)
{
  int code;
  timespec timeout;

  pthread_mutex_lock(&single_lock);
  code = 0;
  while(eventcount <= 0 && code != ETIMEDOUT)
  {
    if(dwMilliseconds == INFINITE)
    {
      pthread_mutex_lock(&wait_mutex);
      code = pthread_cond_wait(&cond, &wait_mutex);
      pthread_mutex_unlock(&wait_mutex);
    }
    else
    {
      pthread_mutex_lock(&wait_mutex);
      gettimespec(&timeout, dwMilliseconds);
      code = pthread_cond_timedwait(&cond, &wait_mutex, &timeout);
      pthread_mutex_unlock(&wait_mutex);
    }
  }
  pthread_mutex_unlock(&single_lock);
  return code;
}

HANDLE CreateEvent(LPSECURITY_ATTRIBUTES lpEventAttributes, BOOL bManualReset,
  BOOL bInitialState, LPCTSTR lpName)
{
  EventCOND *pnew_event = new EventCOND;
  return pnew_event;
}

BOOL SetEvent(HANDLE hEvent)
{
  if(hEvent == NULL)
    return FALSE;
  EventCOND *pEvent = (EventCOND *)hEvent;
  pEvent->;SetEvent();
  return TRUE;
}

BOOL ResetEvent(HANDLE hEvent)
{
  if(hEvent == NULL)
    return FALSE;
  EventCOND *pEvent = (EventCOND *)hEvent;
  pEvent->;ResetEvent();
  return TRUE;
}
BOOL CloseHandle(HANDLE hEvent)
{
  if(hEvent == NULL)
    return TRUE;
  EventCOND *pEvent = (EventCOND *)hEvent;
  delete pEvent;
  pEvent = NULL;
  return TRUE;
}

DWORD WaitForSingleObject(HANDLE hHandle, DWORD dwMilliseconds)
{
  if(hHandle == NULL)
    return 0;
  EventCOND *pEvent = (EventCOND *)hHandle;
  return pEvent->;WaitSingle(dwMilliseconds);
}

DWORD WaitForMultipleObjects(DWORD Count, CONST HANDLE *lpHandles,
  BOOL bWaitAll, DWORD dwMilliseconds)
{
  const int META = 1;
  int code, off, i;

  if(bWaitAll)
  {
    return -1;
  }
  code = off = i = 0;
  EventCOND **ppEvent = (EventCOND **)lpHandles;
  while(1)
  {
    code = ppEvent->;WaitSingle(META);
    if(code != ETIMEDOUT)
      break;

    i++;
    if(i != Count)
      continue;
    i = 0;
    // Sleep(META);
    if(dwMilliseconds == INFINITE)
      continue;

    off += META * Count;
    if(off >;= dwMilliseconds)
      return ETIMEDOUT;
  }

  return i;
}