//-----------------------------------------------------------------------------
/// ShouldResponseBeSent
///
/// indicates whether a response should be sent to the specified request based
/// on whether or not the request is streaming and is rate limited. If the
/// request is rate limited, but a response can be sent, the "last sent time"
/// will be updated if bUpdateTime is true
///
/// \param requestID id of the request that may or may not be rate limited
/// \param bUpdateTime indicates whether or not the "last sent time" will be
/// updated if the response is rate limited, but allowed to be sent
///
/// \return true if a response should NOT be sent; false otherwise
//-----------------------------------------------------------------------------
bool ShouldResponseBeSent(CommunicationID requestID, bool bUpdateTime)
{
// protect the maps from being changed by other threads using the mutex
ScopeLock lock(s_mutex);
ResponseMap::iterator iterResponse = g_streamingResponseMap.find(requestID);
if (iterResponse == g_streamingResponseMap.end())
{
// don't limit the send because we don't even know it is streaming
return false;
}
Response* pResponse = iterResponse->second;
PsAssert(pResponse != NULL);
// if this is a streaming request, only send if rate allows
if (pResponse->m_bStreamingEnabled == true)
{
if (pResponse->m_dwMaxStreamsPerSecond == COMM_MAX_STREAM_RATE ||
pResponse->m_dwMaxStreamsPerSecond == 0)
{
return false;
}
DWORD dwCurrTime = g_streamTimer.GetAbsolute();
if (dwCurrTime - pResponse->m_dwLastSent >= 1000 / pResponse->m_dwMaxStreamsPerSecond)
{
if (bUpdateTime)
{
pResponse->m_dwLastSent = dwCurrTime;
}
return false;
}
else
{
return true;
}
}
return false;
}
