xserver

xserver with xephyr scale patch
git clone https://git.neptards.moe/u3shit/xserver.git
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winclipboardinit.c (4171B)

      1 /*
      2  *Copyright (C) 2003-2004 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 
     35 #include <unistd.h>
     36 #include <pthread.h>
     37 
     38 #include "win.h"
     39 #include "winclipboard/winclipboard.h"
     40 #include "windisplay.h"
     41 #include "winauth.h"
     42 
     43 #define WIN_CLIPBOARD_RETRIES			40
     44 #define WIN_CLIPBOARD_DELAY			1
     45 
     46 /*
     47  * Local variables
     48  */
     49 
     50 static pthread_t g_ptClipboardProc;
     51 
     52 /*
     53  *
     54  */
     55 static void *
     56 winClipboardThreadProc(void *arg)
     57 {
     58   char szDisplay[512];
     59   xcb_auth_info_t *auth_info;
     60   int clipboardRestarts = 0;
     61 
     62   while (1)
     63     {
     64       Bool fShutdown;
     65 
     66       ++clipboardRestarts;
     67 
     68       /* Setup the display connection string */
     69       /*
     70        * NOTE: Always connect to screen 0 since we require that screen
     71        * numbers start at 0 and increase without gaps.  We only need
     72        * to connect to one screen on the display to get events
     73        * for all screens on the display.  That is why there is only
     74        * one clipboard client thread.
     75       */
     76       winGetDisplayName(szDisplay, 0);
     77 
     78       /* Print the display connection string */
     79       ErrorF("winClipboardThreadProc - DISPLAY=%s\n", szDisplay);
     80 
     81       /* Flag that clipboard client has been launched */
     82       g_fClipboardStarted = TRUE;
     83 
     84       /* Use our generated cookie for authentication */
     85       auth_info = winGetXcbAuthInfo();
     86 
     87       fShutdown = winClipboardProc(szDisplay, auth_info);
     88 
     89       /* Flag that clipboard client has stopped */
     90       g_fClipboardStarted = FALSE;
     91 
     92       if (fShutdown)
     93         break;
     94 
     95       /* checking if we need to restart */
     96       if (clipboardRestarts >= WIN_CLIPBOARD_RETRIES) {
     97         /* terminates clipboard thread but the main server still lives */
     98         ErrorF("winClipboardProc - the clipboard thread has restarted %d times and seems to be unstable, disabling clipboard integration\n", clipboardRestarts);
     99         g_fClipboard = FALSE;
    100         break;
    101       }
    102 
    103       sleep(WIN_CLIPBOARD_DELAY);
    104       ErrorF("winClipboardProc - trying to restart clipboard thread \n");
    105     }
    106 
    107   return NULL;
    108 }
    109 
    110 /*
    111  * Initialize the Clipboard module
    112  */
    113 
    114 Bool
    115 winInitClipboard(void)
    116 {
    117     winDebug("winInitClipboard ()\n");
    118 
    119     /* Spawn a thread for the Clipboard module */
    120     if (pthread_create(&g_ptClipboardProc, NULL, winClipboardThreadProc, NULL)) {
    121         /* Bail if thread creation failed */
    122         ErrorF("winInitClipboard - pthread_create failed.\n");
    123         return FALSE;
    124     }
    125 
    126     return TRUE;
    127 }
    128 
    129 void
    130 winClipboardShutdown(void)
    131 {
    132   /* Close down clipboard resources */
    133   if (g_fClipboard && g_fClipboardStarted) {
    134     /* Synchronously destroy the clipboard window */
    135     winClipboardWindowDestroy();
    136 
    137     /* Wait for the clipboard thread to exit */
    138     pthread_join(g_ptClipboardProc, NULL);
    139 
    140     g_fClipboardStarted = FALSE;
    141 
    142     winDebug("winClipboardShutdown - Clipboard thread has exited.\n");
    143   }
    144 }