118 lines
2.4 KiB
C
118 lines
2.4 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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session.c
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Abstract:
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This module contains the worker routines called by the Sb API Request
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routines.
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Author:
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Steve Wood (stevewo) 04-Oct-1989
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Revision History:
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15-Jul-91: Modified for POSIX subsystem.
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--*/
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#include "psxsrv.h"
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NTSTATUS
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PsxInitializeNtSessionList( VOID )
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{
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NTSTATUS Status;
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Status = RtlInitializeCriticalSection( &PsxNtSessionLock );
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return( Status );
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}
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RTL_CRITICAL_SECTION ConnectingTerminalListMutex;
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LIST_ENTRY ConnectingTerminalList;
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NTSTATUS
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InitConnectingTerminalList(
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VOID
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)
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{
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NTSTATUS Status;
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InitializeListHead(&ConnectingTerminalList);
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Status = RtlInitializeCriticalSection(&ConnectingTerminalListMutex);
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return Status;
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}
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//
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// AddConnectingTerminal - a new terminal has connected to the posix
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// subsystem, but has not yet asked to have a process created to
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// be the session leader. We keep track of the information about
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// the terminal in the ConnectingTerminalList until we have a process
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// structure to put it in.
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//
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NTSTATUS
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AddConnectingTerminal(
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int Id,
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HANDLE CommPort,
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HANDLE ReqPort
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)
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{
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PPSX_CONTROLLING_TTY Terminal;
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Terminal = RtlAllocateHeap(PsxHeap, 0, sizeof(*Terminal));
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if (NULL == Terminal) {
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return STATUS_NO_MEMORY;
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}
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Terminal->ReferenceCount = 1;
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Terminal->UniqueId = Id;
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Terminal->ConsoleCommPort = CommPort;
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Terminal->ConsolePort = ReqPort;
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RtlInitializeCriticalSection(&Terminal->Lock);
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RtlEnterCriticalSection(&ConnectingTerminalListMutex);
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InsertHeadList(&ConnectingTerminalList, &Terminal->Links);
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RtlLeaveCriticalSection(&ConnectingTerminalListMutex);
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return STATUS_SUCCESS;
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}
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//
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// GetConnectingTerminal - the terminal with the given id has requested
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// a process for session leader, so remove it from the list and return
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// it. NULL is returned if the terminal is not on the list.
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//
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PPSX_CONTROLLING_TTY
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GetConnectingTerminal(
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int Id
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)
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{
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PPSX_CONTROLLING_TTY Terminal;
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RtlEnterCriticalSection(&ConnectingTerminalListMutex);
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for (Terminal = (PVOID)ConnectingTerminalList.Flink;
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Terminal != (PVOID)&ConnectingTerminalList;
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Terminal = (PVOID)Terminal->Links.Flink) {
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if ((unsigned int)Id == Terminal->UniqueId) {
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RemoveEntryList(&Terminal->Links);
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Terminal->Links.Flink = Terminal->Links.Blink = NULL;
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RtlLeaveCriticalSection(&ConnectingTerminalListMutex);
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return Terminal;
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}
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}
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RtlLeaveCriticalSection(&ConnectingTerminalListMutex);
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return NULL;
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}
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