151 lines
3.2 KiB
C
151 lines
3.2 KiB
C
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/*++
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Copyright (c) 1989 Microsoft Corporation
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Module Name:
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ntrqust.c
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Abstract:
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This module contains the session requests thread.
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Author:
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Avi Nathan (avin) 17-Jul-1991
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Environment:
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User Mode Only
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Revision History:
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Ellen Aycock-Wright (ellena) 15-Sept-1991 Modified for POSIX
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--*/
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#include <malloc.h>
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#define NTPSX_ONLY
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#include "psxses.h"
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VOID ScHandleConnectionRequest( PSCREQUESTMSG Message );
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DWORD
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WINAPI
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ServeSessionRequests(
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LPVOID Parameter
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)
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{
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SCREQUESTMSG ReceiveMsg, *pReplyMsg;
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NTSTATUS Status;
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BOOL fCont = TRUE;
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pReplyMsg = NULL;
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InitializeListHead(&ClientPortsList);
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for (;;) {
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if (fCont) {
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Status = NtReplyWaitReceivePort(PsxSessionPort,
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NULL, (PPORT_MESSAGE)pReplyMsg,
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(PPORT_MESSAGE)&ReceiveMsg);
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if (ReceiveMsg.h.u2.s2.Type == LPC_CONNECTION_REQUEST) {
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ASSERT(NT_SUCCESS(Status));
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ScHandleConnectionRequest( &ReceiveMsg );
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pReplyMsg = NULL;
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continue;
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}
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} else {
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Status = NtReplyPort(PsxSessionPort,
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(PPORT_MESSAGE)pReplyMsg);
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}
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if (STATUS_INVALID_CID == Status) {
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//
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// The client on whose behalf we called read has
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// been shot.
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//
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pReplyMsg = NULL;
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continue;
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}
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if (!NT_SUCCESS(Status)) {
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KdPrint(("PSXSES: ntreqst: 0x%x\n", Status));
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}
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ASSERT(NT_SUCCESS(Status));
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if (LPC_PORT_CLOSED == PORT_MSG_TYPE(ReceiveMsg)) {
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PLIST_ENTRY pl;
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PCLIENT_AND_PORT pc;
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for (pl = ClientPortsList.Flink;
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pl != &ClientPortsList;
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pl = pl->Flink) {
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pc = (PVOID)pl;
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if (pc->ClientId.UniqueProcess == ReceiveMsg.h.ClientId.UniqueProcess &&
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pc->ClientId.UniqueThread == ReceiveMsg.h.ClientId.UniqueThread) {
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RemoveEntryList(&pc->Links);
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NtClose(pc->CommPort);
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free(pc);
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break;
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}
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}
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pReplyMsg = NULL;
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continue;
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}
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if (PORT_MSG_TYPE(ReceiveMsg) == LPC_CLIENT_DIED) {
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pReplyMsg = NULL;
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continue;
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}
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if (!fCont) {
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break;
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}
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if (PORT_MSG_TYPE(ReceiveMsg) != LPC_REQUEST &&
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PORT_MSG_TYPE(ReceiveMsg) != LPC_DATAGRAM) {
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KdPrint(("PSXSES: got msg type %d\n",
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PORT_MSG_TYPE(ReceiveMsg)));
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}
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try {
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switch (ReceiveMsg.Request) {
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case ConRequest:
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fCont = ServeConRequest(&ReceiveMsg.d.Con,
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&ReceiveMsg.Status);
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break;
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case TaskManRequest:
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fCont = ServeTmRequest(&ReceiveMsg.d.Tm,
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&ReceiveMsg.Status);
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break;
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case TcRequest:
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fCont = ServeTcRequest(&ReceiveMsg.d.Tc,
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&ReceiveMsg.Status);
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break;
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default:
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KdPrint(("PSXSES: Unknown nt request: 0x%x\n",
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ReceiveMsg.Request));
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}
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} except (EXCEPTION_EXECUTE_HANDLER) {
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// BUGBUG! GetExceptionCode;
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ReceiveMsg.Status = STATUS_ACCESS_VIOLATION;
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// BUGBUG! The client should kill the process
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}
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pReplyMsg = &ReceiveMsg;
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}
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ExitProcess(0);
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//NOTREACHED
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return 0;
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}
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