C++ (Cpp) GetAvailableRead示例

示例#1

int64_t CSimpleFileCache::WaitForData(unsigned int iMinAvail, unsigned int iMillis)
{
  if( iMillis == 0 || IsEndOfInput() )
    return GetAvailableRead();

  XbmcThreads::EndTime endTime(iMillis);
  while (!IsEndOfInput())
  {
    int64_t iAvail = GetAvailableRead();
    if (iAvail >= iMinAvail)
      return iAvail;

    if (!m_hDataAvailEvent->WaitMSec(endTime.MillisLeft()))
      return CACHE_RC_TIMEOUT;
  }
  return GetAvailableRead();
}

示例#2

文件： CacheStrategy.cpp 项目： AnXi-TieGuanYin-Tea/plex-home-theatre

int64_t CSimpleFileCache::WaitForData(unsigned int iMinAvail, unsigned int iMillis)
{
  if( iMillis == 0 || IsEndOfInput() )
    return GetAvailableRead();

  XbmcThreads::EndTime endTime(iMillis);
  unsigned int millisLeft;
  while ( !IsEndOfInput() && (millisLeft = endTime.MillisLeft()) > 0 )
  {
    int64_t iAvail = GetAvailableRead();
    if (iAvail >= iMinAvail)
      return iAvail;

    // busy look (sleep max 1 sec each round)
    if (!m_hDataAvailEvent->WaitMSec(millisLeft>1000?millisLeft:1000 ))
      return CACHE_RC_ERROR;
  }

  if( IsEndOfInput() )
    return GetAvailableRead();

  return CACHE_RC_TIMEOUT;
}

示例#3

文件： CacheStrategy.cpp 项目： Saddamisalami/xbmc

int64_t CSimpleFileCache::WaitForData(unsigned int iMinAvail, unsigned int iMillis)
{
  if( iMillis == 0 || IsEndOfInput() )
    return GetAvailableRead();

  unsigned int timeout = XbmcThreads::SystemClockMillis() + iMillis;
  unsigned int time;
  while ( !IsEndOfInput() && (time = XbmcThreads::SystemClockMillis()) < timeout )
  {
    int64_t iAvail = GetAvailableRead();
    if (iAvail >= iMinAvail)
      return iAvail;

    // busy look (sleep max 1 sec each round)
    if (!m_hDataAvailEvent->WaitMSec((timeout - time)>1000?(timeout - time):1000 ))
      return CACHE_RC_ERROR;
  }

  if( IsEndOfInput() )
    return GetAvailableRead();

  return CACHE_RC_TIMEOUT;
}

示例#4

文件： CacheStrategy.cpp 项目： AaronDnz/xbmc

int64_t CSimpleFileCache::WaitForData(unsigned int iMinAvail, unsigned int iMillis)
{
  if( iMillis == 0 || IsEndOfInput() )
    return GetAvailableRead();

  unsigned int timeout = CTimeUtils::GetTimeMS() + iMillis;
  unsigned int time;
  while ( !IsEndOfInput() && (time = CTimeUtils::GetTimeMS()) < timeout )
  {
    int64_t iAvail = GetAvailableRead();
    if (iAvail >= iMinAvail)
      return iAvail;

    // busy look (sleep max 1 sec each round)
    DWORD dwRc = WaitForSingleObject(m_hDataAvailEvent, (timeout - time)>1000?(timeout - time):1000 );
    if (dwRc == WAIT_FAILED || dwRc == WAIT_ABANDONED)
      return CACHE_RC_ERROR;
  }

  if( IsEndOfInput() )
    return GetAvailableRead();

  return CACHE_RC_TIMEOUT;
}

示例#5

文件： CacheStrategy.cpp 项目： Kr0nZ/boxee

int CSimpleFileCache::ReadFromCache(char *pBuffer, size_t iMaxSize)
{
  int64_t iAvailable = GetAvailableRead();
	if ( iAvailable <= 0 ) {
		return m_bEndOfInput?CACHE_RC_EOF : CACHE_RC_WOULD_BLOCK;
	}

	if ((int64_t) iMaxSize > iAvailable)
		iMaxSize = (size_t)iAvailable;

	DWORD iRead = 0;
	if (!ReadFile(m_hCacheFileRead, pBuffer, iMaxSize, &iRead, NULL)) {
    CLog::Log(LOGERROR,"CSimpleFileCache::ReadFromCache - failed to read %"PRIdS" bytes.", iMaxSize);
		return CACHE_RC_ERROR;
	}
  m_nReadPosition += iRead;	
	return iRead;
}