xorg-server-1.4/hw/xwin/winblock.c

   1 /*
   2  *Copyright (C) 2001-2004 Harold L Hunt II All Rights Reserved.
   3  *
   4  *Permission is hereby granted, free of charge, to any person obtaining
   5  * a copy of this software and associated documentation files (the
   6  *"Software"), to deal in the Software without restriction, including
   7  *without limitation the rights to use, copy, modify, merge, publish,
   8  *distribute, sublicense, and/or sell copies of the Software, and to
   9  *permit persons to whom the Software is furnished to do so, subject to
  10  *the following conditions:
  11  *
  12  *The above copyright notice and this permission notice shall be
  13  *included in all copies or substantial portions of the Software.
  14  *
  15  *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  16  *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  17  *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  18  *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
  19  *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
  20  *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  21  *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  *
  23  *Except as contained in this notice, the name of Harold L Hunt II
  24  *shall not be used in advertising or otherwise to promote the sale, use
  25  *or other dealings in this Software without prior written authorization
  26  *from Harold L Hunt II.
  27  *
  28  * Authors:     Harold L Hunt II
  29  */
  30
  31 #ifdef HAVE_XWIN_CONFIG_H
  32 #include <xwin-config.h>
  33 #endif
  34 #include "win.h"
  35 #include "winmsg.h"
  36
  37
  38 /*
  39  * References to external symbols
  40  */
  41
  42 extern HWND                     g_hDlgDepthChange;
  43 extern HWND                     g_hDlgExit;
  44 extern HWND                     g_hDlgAbout;
  45
  46
  47 /* See Porting Layer Definition - p. 6 */
  48 void
  49 winBlockHandler (int nScreen,
  50                  pointer pBlockData,
  51                  pointer pTimeout,
  52                  pointer pReadMask)
  53 {
  54 #if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
  55   winScreenPriv((ScreenPtr)pBlockData);
  56 #endif
  57   MSG                   msg;
  58 #ifndef HAS_DEVWINDOWS
  59   struct timeval **tvp = pTimeout;
  60   if (*tvp != NULL)
  61   {
  62     (*tvp)->tv_sec = 0;
  63     (*tvp)->tv_usec = 100;
  64   }
  65 #endif
  66
  67 #if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
  68   /* Signal threaded modules to begin */
  69   if (pScreenPriv != NULL && !pScreenPriv->fServerStarted)
  70     {
  71       int               iReturn;
  72
  73       winDebug ("winBlockHandler - Releasing pmServerStarted\n");
  74
  75       /* Flag that modules are to be started */
  76       pScreenPriv->fServerStarted = TRUE;
  77
  78       /* Unlock the mutex for threaded modules */
  79       iReturn = pthread_mutex_unlock (&pScreenPriv->pmServerStarted);
  80       if (iReturn != 0)
  81         {
  82           ErrorF ("winBlockHandler - pthread_mutex_unlock () failed: %d\n",
  83                   iReturn);
  84           goto winBlockHandler_ProcessMessages;
  85         }
  86
  87       winDebug ("winBlockHandler - pthread_mutex_unlock () returned\n");
  88     }
  89
  90 winBlockHandler_ProcessMessages:
  91 #endif
  92
  93   /* Process all messages on our queue */
  94   while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
  95     {
  96       if ((g_hDlgDepthChange == 0
  97            || !IsDialogMessage (g_hDlgDepthChange, &msg))
  98           && (g_hDlgExit == 0
  99               || !IsDialogMessage (g_hDlgExit, &msg))
 100           && (g_hDlgAbout == 0
 101               || !IsDialogMessage (g_hDlgAbout, &msg)))
 102         {
 103           DispatchMessage (&msg);
 104         }
 105     }
 106 }