reactos/services/umpnpmgr/umpnpmgr.c

   1 /*
   2  *  ReactOS kernel
   3  *  Copyright (C) 2005 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with this program; if not, write to the Free Software
  17  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  18  */
  19 /* $Id$
  20  *
  21  * COPYRIGHT:        See COPYING in the top level directory
  22  * PROJECT:          ReactOS kernel
  23  * FILE:             services/umpnpmgr/umpnpmgr.c
  24  * PURPOSE:          User-mode Plug and Play manager
  25  * PROGRAMMER:       Eric Kohl
  26  */
  27
  28 /* INCLUDES *****************************************************************/
  29
  30 #define UNICODE
  31 #define _UNICODE
  32
  33 #define NTOS_MODE_USER
  34 #include <ntos.h>
  35 #include <ntos/ntpnp.h>
  36 #include <ddk/wdmguid.h>
  37 #include <windows.h>
  38 #include <tchar.h>
  39 #include <stdio.h>
  40
  41 #include <rpc.h>
  42 #include <rpcdce.h>
  43
  44 #define DBG
  45 #define NDEBUG
  46 #include <debug.h>
  47
  48
  49
  50 /* GLOBALS ******************************************************************/
  51
  52 static VOID CALLBACK
  53 ServiceMain(DWORD argc, LPTSTR *argv);
  54
  55 static SERVICE_TABLE_ENTRY ServiceTable[2] =
  56 {
  57   {_T("PlugPlay"), ServiceMain},
  58   {NULL, NULL}
  59 };
  60
  61
  62 /* FUNCTIONS *****************************************************************/
  63
  64 static DWORD WINAPI
  65 PnpEventThread(LPVOID lpParameter)
  66 {
  67   PPLUGPLAY_EVENT_BLOCK PnpEvent;
  68   ULONG PnpEventSize;
  69   NTSTATUS Status;
  70   RPC_STATUS RpcStatus;
  71
  72   PnpEventSize = 0x1000;
  73   PnpEvent = HeapAlloc(GetProcessHeap(), 0, PnpEventSize);
  74   if (PnpEvent == NULL)
  75     return ERROR_OUTOFMEMORY;
  76
  77   for (;;)
  78   {
  79     DPRINT("Calling NtGetPlugPlayEvent()\n");
  80
  81     /* Wait for the next pnp event */
  82     Status = NtGetPlugPlayEvent(0, 0, PnpEvent, 1024);
  83     /* Resize the buffer for the PnP event if it's too small. */
  84     if (Status == STATUS_BUFFER_TOO_SMALL)
  85     {
  86       PnpEventSize += 0x400;
  87       PnpEvent = HeapReAlloc(GetProcessHeap(), 0, PnpEvent, PnpEventSize);
  88       if (PnpEvent == NULL)
  89         return ERROR_OUTOFMEMORY;
  90       continue;
  91     }
  92     if (!NT_SUCCESS(Status))
  93     {
  94       DPRINT("NtPlugPlayEvent() failed (Status %lx)\n", Status);
  95       break;
  96     }
  97
  98     DPRINT("Received PnP Event\n");
  99     if (UuidEqual(&PnpEvent->EventGuid, (UUID*)&GUID_DEVICE_ARRIVAL, &RpcStatus))
 100     {
 101       DPRINT1("Device arrival event: %S\n", PnpEvent->TargetDevice.DeviceIds);
 102     }
 103     else
 104     {
 105       DPRINT1("Unknown event\n");
 106     }
 107
 108     /* FIXME: Process the pnp event */
 109
 110     /* Dequeue the current pnp event and signal the next one */
 111     NtPlugPlayControl(PLUGPLAY_USER_RESPONSE, NULL, 0);
 112   }
 113
 114   HeapFree(GetProcessHeap(), 0, PnpEvent);
 115
 116   return ERROR_SUCCESS;
 117 }
 118
 119
 120 static VOID CALLBACK
 121 ServiceMain(DWORD argc, LPTSTR *argv)
 122 {
 123   HANDLE hThread;
 124   DWORD dwThreadId;
 125
 126   DPRINT("ServiceMain() called\n");
 127
 128   hThread = CreateThread(NULL,
 129                          0,
 130                          PnpEventThread,
 131                          NULL,
 132                          0,
 133                          &dwThreadId);
 134   if (hThread != NULL)
 135     CloseHandle(hThread);
 136
 137   DPRINT("ServiceMain() done\n");
 138 }
 139
 140
 141 int
 142 main(int argc, char *argv[])
 143 {
 144   DPRINT("Umpnpmgr: main() started\n");
 145
 146   StartServiceCtrlDispatcher(ServiceTable);
 147
 148   DPRINT("Umpnpmgr: main() done\n");
 149
 150   ExitThread(0);
 151
 152   return 0;
 153 }
 154
 155 /* EOF */