winblock.c revision 706f2543 
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/* See Porting Layer Definition - p. 6 */
38void
39winBlockHandler (int nScreen,
40		 pointer pBlockData,
41		 pointer pTimeout,
42		 pointer pReadMask)
43{
44#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
45  winScreenPriv((ScreenPtr)pBlockData);
46#endif
47  MSG			msg;
48#ifndef HAS_DEVWINDOWS
49  struct timeval **tvp = pTimeout;
50  if (*tvp != NULL)
51  {
52    (*tvp)->tv_sec = 0;
53    (*tvp)->tv_usec = 100;
54  }
55#endif
56
57#if defined(XWIN_CLIPBOARD) || defined(XWIN_MULTIWINDOW)
58  /* Signal threaded modules to begin */
59  if (pScreenPriv != NULL && !pScreenPriv->fServerStarted)
60    {
61      int		iReturn;
62
63      winDebug ("winBlockHandler - Releasing pmServerStarted\n");
64
65      /* Flag that modules are to be started */
66      pScreenPriv->fServerStarted = TRUE;
67
68      /* Unlock the mutex for threaded modules */
69      iReturn = pthread_mutex_unlock (&pScreenPriv->pmServerStarted);
70      if (iReturn != 0)
71	{
72	  ErrorF ("winBlockHandler - pthread_mutex_unlock () failed: %d\n",
73		  iReturn);
74	  goto winBlockHandler_ProcessMessages;
75	}
76
77      winDebug ("winBlockHandler - pthread_mutex_unlock () returned\n");
78    }
79
80winBlockHandler_ProcessMessages:
81#endif
82
83  /* Process all messages on our queue */
84  while (PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
85    {
86      if ((g_hDlgDepthChange == 0
87	   || !IsDialogMessage (g_hDlgDepthChange, &msg))
88	  && (g_hDlgExit == 0
89	      || !IsDialogMessage (g_hDlgExit, &msg))
90	  && (g_hDlgAbout == 0
91	      || !IsDialogMessage (g_hDlgAbout, &msg)))
92	{
93	  DispatchMessage (&msg);
94	}
95    }
96}
97