143 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			143 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			C
		
	
	
	
/*
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 *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
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 *
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 *Permission is hereby granted, free of charge, to any person obtaining
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 * a copy of this software and associated documentation files (the
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 *"Software"), to deal in the Software without restriction, including
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 *without limitation the rights to use, copy, modify, merge, publish,
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 *distribute, sublicense, and/or sell copies of the Software, and to
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 *permit persons to whom the Software is furnished to do so, subject to
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 *the following conditions:
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 *
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 *The above copyright notice and this permission notice shall be
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 *included in all copies or substantial portions of the Software.
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 *
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 *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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 *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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 *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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 *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
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 *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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 *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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 *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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 *
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 *Except as contained in this notice, the name of Harold L Hunt II
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 *shall not be used in advertising or otherwise to promote the sale, use
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 *or other dealings in this Software without prior written authorization
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 *from Harold L Hunt II.
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 *
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 * Authors:	Harold L Hunt II
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 */
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#ifdef HAVE_XWIN_CONFIG_H
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#include <xwin-config.h>
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#endif
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#include <unistd.h>
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#include <pthread.h>
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#include "win.h"
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#include "winclipboard/winclipboard.h"
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#include "windisplay.h"
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#define WIN_CLIPBOARD_RETRIES			40
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#define WIN_CLIPBOARD_DELAY			1
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/*
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 * Local variables
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 */
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static pthread_t g_ptClipboardProc;
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/*
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 *
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 */
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static void *
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winClipboardThreadProc(void *arg)
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{
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  char szDisplay[512];
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  int clipboardRestarts = 0;
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  while (1)
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    {
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      Bool fShutdown;
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      ++clipboardRestarts;
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      /* Use our generated cookie for authentication */
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      winSetAuthorization();
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      /* Setup the display connection string */
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      /*
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       * NOTE: Always connect to screen 0 since we require that screen
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       * numbers start at 0 and increase without gaps.  We only need
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       * to connect to one screen on the display to get events
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       * for all screens on the display.  That is why there is only
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       * one clipboard client thread.
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      */
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      winGetDisplayName(szDisplay, 0);
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      /* Print the display connection string */
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      ErrorF("winClipboardThreadProc - DISPLAY=%s\n", szDisplay);
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      /* Flag that clipboard client has been launched */
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      g_fClipboardStarted = TRUE;
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      fShutdown = winClipboardProc(g_fUnicodeClipboard, szDisplay);
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      /* Flag that clipboard client has stopped */
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      g_fClipboardStarted = FALSE;
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      if (fShutdown)
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        break;
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      /* checking if we need to restart */
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      if (clipboardRestarts >= WIN_CLIPBOARD_RETRIES) {
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        /* terminates clipboard thread but the main server still lives */
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        ErrorF("winClipboardProc - the clipboard thread has restarted %d times and seems to be unstable, disabling clipboard integration\n", clipboardRestarts);
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        g_fClipboard = FALSE;
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        break;
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      }
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      sleep(WIN_CLIPBOARD_DELAY);
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      ErrorF("winClipboardProc - trying to restart clipboard thread \n");
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    }
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  return NULL;
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}
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/*
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 * Intialize the Clipboard module
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 */
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Bool
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winInitClipboard(void)
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{
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    winDebug("winInitClipboard ()\n");
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    /* Spawn a thread for the Clipboard module */
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    if (pthread_create(&g_ptClipboardProc, NULL, winClipboardThreadProc, NULL)) {
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        /* Bail if thread creation failed */
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        ErrorF("winInitClipboard - pthread_create failed.\n");
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        return FALSE;
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    }
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    return TRUE;
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}
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void
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winClipboardShutdown(void)
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{
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  /* Close down clipboard resources */
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  if (g_fClipboard && g_fClipboardStarted) {
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    /* Synchronously destroy the clipboard window */
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    winClipboardWindowDestroy();
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    /* Wait for the clipboard thread to exit */
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    pthread_join(g_ptClipboardProc, NULL);
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    g_fClipboardStarted = FALSE;
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    winDebug("winClipboardShutdown - Clipboard thread has exited.\n");
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  }
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}
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