void Server::OnRecv(IOEvent* event, DWORD dwNumberOfBytesTransfered)
{
assert(event);
TRACE("[%d] Enter OnRecv()", GetCurrentThreadId());
BYTE* buff = event->GetClient()->GetRecvBuff();
buff[dwNumberOfBytesTransfered] = '\0';
TRACE("[%d] OnRecv : %s", GetCurrentThreadId(), buff);
// Create packet by copying recv buff.
Packet* packet = Packet::Create(event->GetClient(), event->GetClient()->GetRecvBuff(),
dwNumberOfBytesTransfered);
// If whatever logics relying on the packet are fast enough, we can manage them here but
// assume they are slow.
// it's better to request receiving ASAP and handle packets received in another thread.
if (!TrySubmitThreadpoolCallback(Server::WorkerProcessRecvPacket, packet, NULL))
{
ERROR_CODE(GetLastError(), "Could not start WorkerProcessRecvPacket. call it directly.");
Echo(packet);
}
PostRecv(event->GetClient());
TRACE("[%d] Leave OnRecv()", GetCurrentThreadId());
}
void OnStartBatch() {
// Sanity checks
if (g_hEmailEvent != NULL)
{
AddMessage(TEXT("Previous batch is still running..."));
return;
}
AddMessage(
TEXT("[%u] ----Start a new batch----"), GetCurrentThreadId());
// Create the synchronization events
g_hEmailEvent = CreateEvent(NULL, FALSE, FALSE, TEXT("EmailEvent"));
g_hPrintEvent = CreateEvent(NULL, FALSE, FALSE, TEXT("PrintEvent"));
// Define the work items to be processed by the thread pool
// 1. Keep track of the events that will be set when each action
// if finished
PSYNCHRO_DATA pSynchData = new SYNCHRO_DATA();
pSynchData->Count = 2;
pSynchData->Handles = new HANDLE[2];
pSynchData->Handles[0] = g_hEmailEvent;
pSynchData->Handles[1] = g_hPrintEvent;
TrySubmitThreadpoolCallback((PTP_SIMPLE_CALLBACK)
EndOfBatchCallback, pSynchData, &g_callbackEnvironment);
// 2. Start the email action
PCALLBACK_DATA pData = new CALLBACK_DATA();
pData->finishEvent = g_hEmailEvent;
_tcscpy_s(pData->szAction, MAX_PATH, TEXT("Email"));
TrySubmitThreadpoolCallback((PTP_SIMPLE_CALLBACK)
ActionCallback, pData, &g_callbackEnvironment);
// 3. Start the printing action
pData = new CALLBACK_DATA();
pData->finishEvent = g_hPrintEvent;
_tcscpy_s(pData->szAction, MAX_PATH, TEXT("Printing"));
TrySubmitThreadpoolCallback((PTP_SIMPLE_CALLBACK)
ActionCallback, pData, &g_callbackEnvironment);
}
void Server::OnClose(IOEvent* event)
{
assert(event);
TRACE("Client's socket has been closed.");
// If whatever game logics about this event are fast enough, we can manage them here but I
// assume they are slow.
if (!m_ShuttingDown &&
!TrySubmitThreadpoolCallback(Server::WorkerRemoveClient, event->GetClient(), &m_ClientTPENV))
{
ERROR_CODE(GetLastError(), "can't start WorkerRemoveClient. call it directly.");
RemoveClient(event->GetClient());
}
}
void OnRun() {
// Setup randomizer
srand(GetTickCount());
for(int current = 1; current <= 6; current++) {
PTSTR pRequest = new TCHAR[MAX_PATH];
StringCchPrintf(pRequest, MAX_PATH, TEXT("Request %u"), current);
if (TrySubmitThreadpoolCallback((PTP_SIMPLE_CALLBACK)
SimpleHandler, pRequest, &g_callbackEnvironment))
{
AddMessage(
TEXT("[%u] Request %u is submitted"),
GetCurrentThreadId(), current);
} else {
AddMessage(
TEXT("[%u] Request %u can't be submitted"),
GetCurrentThreadId(), current);
}
}
}
void Server::OnAccept(IOEvent* event)
{
assert(event);
TRACE("[%d] Enter OnAccept()", GetCurrentThreadId());
assert(event->GetType() == IOEvent::ACCEPT);
// Check if we need to post more accept requests.
InterlockedDecrement(&m_NumPostAccept);
// Add client in a different thread.
// It is because we need to return this function ASAP so that this IO worker thread can process
// the other IO notifications.
// If adding client is fast enough, we can call it here but I assume it's slow.
if (!m_ShuttingDown &&
!TrySubmitThreadpoolCallback(Server::WorkerAddClient, event->GetClient(), &m_ClientTPENV))
{
ERROR_CODE(GetLastError(), "Could not start WorkerAddClient.");
AddClient(event->GetClient());
}
TRACE("[%d] Leave OnAccept()", GetCurrentThreadId());
}
/****************************************************************************
* The main async help function.
*
* It either starts a thread or just calls the function directly for platforms
* with no thread support. This relies on the fact that PostMessage() does
* not actually call the windowproc before the function returns.
*/
static HANDLE run_query( HWND hWnd, UINT uMsg, LPARAM (*func)(struct async_query_header *),
struct async_query_header *query, void *sbuf, INT sbuflen )
{
static LONG next_handle = 0xdead;
ULONG handle;
do
handle = LOWORD( InterlockedIncrement( &next_handle ));
while (!handle); /* avoid handle 0 */
query->func = func;
query->hWnd = hWnd;
query->uMsg = uMsg;
query->handle = UlongToHandle( handle );
query->sbuf = sbuf;
query->sbuflen = sbuflen;
if (!TrySubmitThreadpoolCallback( async_worker, query, NULL ))
{
SetLastError( WSAEWOULDBLOCK );
HeapFree( GetProcessHeap(), 0, query );
return 0;
}
return UlongToHandle( handle );
}
