winblock.c revision 05b261ec 
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
42extern HWND			g_hDlgDepthChange;
43extern HWND			g_hDlgExit;
44extern HWND			g_hDlgAbout;
45
46
47/* See Porting Layer Definition - p. 6 */
48void
49winBlockHandler (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
90winBlockHandler_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}
107