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