/******************************************************************
* WDML_ServerConvProc
*
*
*/
static LRESULT CALLBACK WDML_ServerConvProc(HWND hwndServer, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
WDML_INSTANCE* pInstance;
WDML_CONV* pConv;
WDML_XACT* pXAct = NULL;
if (iMsg == WM_DESTROY)
{
EnterCriticalSection(&WDML_CritSect);
pConv = WDML_GetConvFromWnd(hwndServer);
if (pConv && !(pConv->wStatus & ST_TERMINATED))
{
WDML_ServerHandleTerminate(pConv, NULL);
}
LeaveCriticalSection(&WDML_CritSect);
}
if (iMsg < WM_DDE_FIRST || iMsg > WM_DDE_LAST)
{
return DefWindowProcA(hwndServer, iMsg, wParam, lParam);
}
EnterCriticalSection(&WDML_CritSect);
pInstance = WDML_GetInstanceFromWnd(hwndServer);
pConv = WDML_GetConvFromWnd(hwndServer);
if (!pConv)
{
ERR("Got a message (%u) on a not known conversation, dropping request\n", iMsg);
goto theError;
}
if (pConv->hwndClient != WIN_GetFullHandle( (HWND)wParam ) || pConv->hwndServer != hwndServer)
{
ERR("mismatch between C/S windows and converstation\n");
goto theError;
}
if (pConv->instance != pInstance || pConv->instance == NULL)
{
ERR("mismatch in instances\n");
goto theError;
}
switch (iMsg)
{
case WM_DDE_INITIATE:
FIXME("WM_DDE_INITIATE message received!\n");
break;
case WM_DDE_REQUEST:
pXAct = WDML_ServerQueueRequest(pConv, lParam);
break;
case WM_DDE_ADVISE:
pXAct = WDML_ServerQueueAdvise(pConv, lParam);
break;
case WM_DDE_UNADVISE:
pXAct = WDML_ServerQueueUnadvise(pConv, lParam);
break;
case WM_DDE_EXECUTE:
pXAct = WDML_ServerQueueExecute(pConv, lParam);
break;
case WM_DDE_POKE:
pXAct = WDML_ServerQueuePoke(pConv, lParam);
break;
case WM_DDE_TERMINATE:
pXAct = WDML_ServerQueueTerminate(pConv, lParam);
break;
case WM_DDE_ACK:
WARN("Shouldn't receive a ACK message (never requests them). Ignoring it\n");
break;
default:
FIXME("Unsupported message %d\n", iMsg);
}
if (pXAct)
{
pXAct->lParam = lParam;
if (WDML_ServerHandle(pConv, pXAct) == WDML_QS_BLOCK)
{
WDML_QueueTransaction(pConv, pXAct);
}
else
{
WDML_FreeTransaction(pInstance, pXAct, TRUE);
}
}
theError:
LeaveCriticalSection(&WDML_CritSect);
return 0;
}
/*****************************************************************
* DdeClientTransaction (USER32.@)
*/
HDDEDATA WINAPI DdeClientTransaction(LPBYTE pData, DWORD cbData, HCONV hConv, HSZ hszItem, UINT wFmt,
UINT wType, DWORD dwTimeout, LPDWORD pdwResult)
{
WDML_CONV* pConv;
WDML_XACT* pXAct;
HDDEDATA hDdeData;
TRACE("(%p,%d,%p,%p,%x,%x,%d,%p)\n",
pData, cbData, hConv, hszItem, wFmt, wType, dwTimeout, pdwResult);
if (hConv == 0)
{
WARN("Invalid conversation handle NULL\n");
return 0;
}
pConv = WDML_GetConv(hConv, TRUE);
if (pConv == NULL)
{
/* cannot set error... cannot get back to DDE instance */
return 0;
}
switch (wType)
{
case XTYP_EXECUTE:
/* Windows simply ignores hszItem and wFmt in this case */
pXAct = WDML_ClientQueueExecute(pConv, pData, cbData);
if (pXAct == NULL)
return 0;
break;
case XTYP_POKE:
if (!hszItem)
{
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
return 0;
}
pXAct = WDML_ClientQueuePoke(pConv, pData, cbData, wFmt, hszItem);
break;
case XTYP_ADVSTART|XTYPF_NODATA:
case XTYP_ADVSTART|XTYPF_NODATA|XTYPF_ACKREQ:
case XTYP_ADVSTART:
case XTYP_ADVSTART|XTYPF_ACKREQ:
if (pData)
{
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
return 0;
}
pXAct = WDML_ClientQueueAdvise(pConv, wType, wFmt, hszItem);
break;
case XTYP_ADVSTOP:
if (pData)
{
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
return 0;
}
pXAct = WDML_ClientQueueUnadvise(pConv, wFmt, hszItem);
break;
case XTYP_REQUEST:
if (pData || !hszItem)
{
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
return 0;
}
pXAct = WDML_ClientQueueRequest(pConv, wFmt, hszItem);
break;
default:
FIXME("Unknown transaction type %04x\n", wType);
/* unknown transaction type */
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
return 0;
}
if (pXAct == NULL)
{
pConv->instance->lastError = DMLERR_MEMORY_ERROR;
return 0;
}
WDML_QueueTransaction(pConv, pXAct);
TRACE("pConv->wStatus %04x\n", pConv->wStatus);
if (pConv->wStatus & ST_BLOCKED)
{
TRACE("Transactions are blocked, add to the queue and exit\n");
return (HDDEDATA)1;
}
hDdeData = WDML_ClientHandle(pConv, pXAct, dwTimeout, pdwResult);
if (dwTimeout != TIMEOUT_ASYNC)
{
WDML_UnQueueTransaction(pConv, pXAct);
WDML_FreeTransaction(pConv->instance, pXAct, TRUE);
}
return hDdeData;
}
/******************************************************************
* WDML_ServerConvProc
*
*
*/
static LRESULT CALLBACK WDML_ServerConvProc(HWND hwndServer, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
WDML_INSTANCE* pInstance;
WDML_CONV* pConv;
WDML_XACT* pXAct = NULL;
TRACE("%p %04x %08lx %08lx\n", hwndServer, iMsg, wParam, lParam);
if (iMsg == WM_DESTROY)
{
pConv = WDML_GetConvFromWnd(hwndServer);
if (pConv && !(pConv->wStatus & ST_TERMINATED))
{
WDML_ServerHandleTerminate(pConv, NULL);
}
}
if (iMsg < WM_DDE_FIRST || iMsg > WM_DDE_LAST)
{
return IsWindowUnicode(hwndServer) ? DefWindowProcW(hwndServer, iMsg, wParam, lParam) :
DefWindowProcA(hwndServer, iMsg, wParam, lParam);
}
pInstance = WDML_GetInstanceFromWnd(hwndServer);
pConv = WDML_GetConvFromWnd(hwndServer);
if (!pConv)
{
ERR("Got a message (%x) on a not known conversation, dropping request\n", iMsg);
return 0;
}
if (pConv->hwndClient != WIN_GetFullHandle( (HWND)wParam ) || pConv->hwndServer != hwndServer)
{
ERR("mismatch between C/S windows and conversation\n");
return 0;
}
if (pConv->instance != pInstance || pConv->instance == NULL)
{
ERR("mismatch in instances\n");
return 0;
}
switch (iMsg)
{
case WM_DDE_INITIATE:
FIXME("WM_DDE_INITIATE message received!\n");
break;
case WM_DDE_REQUEST:
pXAct = WDML_ServerQueueRequest(pConv, lParam);
break;
case WM_DDE_ADVISE:
pXAct = WDML_ServerQueueAdvise(pConv, lParam);
break;
case WM_DDE_UNADVISE:
pXAct = WDML_ServerQueueUnadvise(pConv, lParam);
break;
case WM_DDE_EXECUTE:
pXAct = WDML_ServerQueueExecute(pConv, lParam);
break;
case WM_DDE_POKE:
pXAct = WDML_ServerQueuePoke(pConv, lParam);
break;
case WM_DDE_TERMINATE:
pXAct = WDML_ServerQueueTerminate(pConv, lParam);
break;
case WM_DDE_ACK:
WARN("Shouldn't receive a ACK message (never requests them). Ignoring it\n");
break;
default:
FIXME("Unsupported message %x\n", iMsg);
break;
}
if (pXAct)
{
pXAct->lParam = lParam;
if ((pConv->wStatus & ST_BLOCKED) || WDML_ServerHandle(pConv, pXAct) == WDML_QS_BLOCK)
{
TRACE("Transactions are blocked, add to the queue and exit\n");
WDML_QueueTransaction(pConv, pXAct);
}
else
{
WDML_FreeTransaction(pInstance, pXAct, TRUE);
}
}
else
pConv->instance->lastError = DMLERR_MEMORY_ERROR;
return 0;
}
/*****************************************************************
* DdeClientTransaction (USER32.@)
*/
HDDEDATA WINAPI DdeClientTransaction(LPBYTE pData, DWORD cbData, HCONV hConv, HSZ hszItem, UINT wFmt,
UINT wType, DWORD dwTimeout, LPDWORD pdwResult)
{
WDML_CONV* pConv;
WDML_XACT* pXAct;
HDDEDATA hDdeData = 0;
TRACE("(%p,%ld,%p,%p,%x,%x,%ld,%p)\n",
pData, cbData, hConv, hszItem, wFmt, wType, dwTimeout, pdwResult);
if (hConv == 0)
{
WARN("Invalid conversation handle NULL\n");
return 0;
}
EnterCriticalSection(&WDML_CritSect);
pConv = WDML_GetConv(hConv, TRUE);
if (pConv == NULL)
{
/* cannot set error... cannot get back to DDE instance */
goto theError;
}
switch (wType)
{
case XTYP_EXECUTE:
/* Windows simply ignores hszItem and wFmt in this case */
pXAct = WDML_ClientQueueExecute(pConv, pData, cbData);
break;
case XTYP_POKE:
pXAct = WDML_ClientQueuePoke(pConv, pData, cbData, wFmt, hszItem);
break;
case XTYP_ADVSTART|XTYPF_NODATA:
case XTYP_ADVSTART|XTYPF_NODATA|XTYPF_ACKREQ:
case XTYP_ADVSTART:
case XTYP_ADVSTART|XTYPF_ACKREQ:
if (pData)
{
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
goto theError;
}
pXAct = WDML_ClientQueueAdvise(pConv, wType, wFmt, hszItem);
break;
case XTYP_ADVSTOP:
if (pData)
{
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
goto theError;
}
pXAct = WDML_ClientQueueUnadvise(pConv, wFmt, hszItem);
break;
case XTYP_REQUEST:
if (pData)
{
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
goto theError;
}
pXAct = WDML_ClientQueueRequest(pConv, wFmt, hszItem);
break;
default:
FIXME("Unknown transation\n");
/* unknown transaction type */
pConv->instance->lastError = DMLERR_INVALIDPARAMETER;
goto theError;
}
if (pXAct == NULL)
{
pConv->instance->lastError = DMLERR_MEMORY_ERROR;
goto theError;
}
WDML_QueueTransaction(pConv, pXAct);
if (!PostMessageW(pConv->hwndServer, pXAct->ddeMsg, (WPARAM)pConv->hwndClient, pXAct->lParam))
{
WARN("Failed posting message %x to %p (error=0x%lx)\n",
pXAct->ddeMsg, pConv->hwndServer, GetLastError());
pConv->wStatus &= ~ST_CONNECTED;
WDML_UnQueueTransaction(pConv, pXAct);
WDML_FreeTransaction(pConv->instance, pXAct, TRUE);
goto theError;
}
pXAct->dwTimeout = dwTimeout;
/* FIXME: should set the app bits on *pdwResult */
if (dwTimeout == TIMEOUT_ASYNC)
{
if (pdwResult)
{
*pdwResult = MAKELONG(0, pXAct->xActID);
}
hDdeData = (HDDEDATA)1;
}
else
{
DWORD count, i;
count = WDML_CritSect.RecursionCount;
for (i = 0; i < count; i++)
LeaveCriticalSection(&WDML_CritSect);
hDdeData = WDML_SyncWaitTransactionReply((HCONV)pConv, dwTimeout, pXAct, pdwResult);
for (i = 0; i < count; i++)
EnterCriticalSection(&WDML_CritSect);
}
LeaveCriticalSection(&WDML_CritSect);
return hDdeData;
theError:
LeaveCriticalSection(&WDML_CritSect);
return 0;
}