1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun *Copyright (C) 2003-2004 Harold L Hunt II All Rights Reserved.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun *Permission is hereby granted, free of charge, to any person obtaining
5*4882a593Smuzhiyun * a copy of this software and associated documentation files (the
6*4882a593Smuzhiyun *"Software"), to deal in the Software without restriction, including
7*4882a593Smuzhiyun *without limitation the rights to use, copy, modify, merge, publish,
8*4882a593Smuzhiyun *distribute, sublicense, and/or sell copies of the Software, and to
9*4882a593Smuzhiyun *permit persons to whom the Software is furnished to do so, subject to
10*4882a593Smuzhiyun *the following conditions:
11*4882a593Smuzhiyun *
12*4882a593Smuzhiyun *The above copyright notice and this permission notice shall be
13*4882a593Smuzhiyun *included in all copies or substantial portions of the Software.
14*4882a593Smuzhiyun *
15*4882a593Smuzhiyun *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16*4882a593Smuzhiyun *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17*4882a593Smuzhiyun *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18*4882a593Smuzhiyun *NONINFRINGEMENT. IN NO EVENT SHALL HAROLD L HUNT II BE LIABLE FOR
19*4882a593Smuzhiyun *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
20*4882a593Smuzhiyun *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21*4882a593Smuzhiyun *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22*4882a593Smuzhiyun *
23*4882a593Smuzhiyun *Except as contained in this notice, the name of Harold L Hunt II
24*4882a593Smuzhiyun *shall not be used in advertising or otherwise to promote the sale, use
25*4882a593Smuzhiyun *or other dealings in this Software without prior written authorization
26*4882a593Smuzhiyun *from Harold L Hunt II.
27*4882a593Smuzhiyun *
28*4882a593Smuzhiyun * Authors: Harold L Hunt II
29*4882a593Smuzhiyun */
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun #ifdef HAVE_XWIN_CONFIG_H
32*4882a593Smuzhiyun #include <xwin-config.h>
33*4882a593Smuzhiyun #endif
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun #include <unistd.h>
36*4882a593Smuzhiyun #include <pthread.h>
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun #include "win.h"
39*4882a593Smuzhiyun #include "winclipboard/winclipboard.h"
40*4882a593Smuzhiyun #include "windisplay.h"
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun #define WIN_CLIPBOARD_RETRIES 40
43*4882a593Smuzhiyun #define WIN_CLIPBOARD_DELAY 1
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun /*
46*4882a593Smuzhiyun * Local variables
47*4882a593Smuzhiyun */
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun static pthread_t g_ptClipboardProc;
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun /*
52*4882a593Smuzhiyun *
53*4882a593Smuzhiyun */
54*4882a593Smuzhiyun static void *
winClipboardThreadProc(void * arg)55*4882a593Smuzhiyun winClipboardThreadProc(void *arg)
56*4882a593Smuzhiyun {
57*4882a593Smuzhiyun char szDisplay[512];
58*4882a593Smuzhiyun int clipboardRestarts = 0;
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun while (1)
61*4882a593Smuzhiyun {
62*4882a593Smuzhiyun Bool fShutdown;
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun ++clipboardRestarts;
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun /* Use our generated cookie for authentication */
67*4882a593Smuzhiyun winSetAuthorization();
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun /* Setup the display connection string */
70*4882a593Smuzhiyun /*
71*4882a593Smuzhiyun * NOTE: Always connect to screen 0 since we require that screen
72*4882a593Smuzhiyun * numbers start at 0 and increase without gaps. We only need
73*4882a593Smuzhiyun * to connect to one screen on the display to get events
74*4882a593Smuzhiyun * for all screens on the display. That is why there is only
75*4882a593Smuzhiyun * one clipboard client thread.
76*4882a593Smuzhiyun */
77*4882a593Smuzhiyun winGetDisplayName(szDisplay, 0);
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun /* Print the display connection string */
80*4882a593Smuzhiyun ErrorF("winClipboardThreadProc - DISPLAY=%s\n", szDisplay);
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun /* Flag that clipboard client has been launched */
83*4882a593Smuzhiyun g_fClipboardStarted = TRUE;
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun fShutdown = winClipboardProc(g_fUnicodeClipboard, szDisplay);
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun /* Flag that clipboard client has stopped */
88*4882a593Smuzhiyun g_fClipboardStarted = FALSE;
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun if (fShutdown)
91*4882a593Smuzhiyun break;
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun /* checking if we need to restart */
94*4882a593Smuzhiyun if (clipboardRestarts >= WIN_CLIPBOARD_RETRIES) {
95*4882a593Smuzhiyun /* terminates clipboard thread but the main server still lives */
96*4882a593Smuzhiyun ErrorF("winClipboardProc - the clipboard thread has restarted %d times and seems to be unstable, disabling clipboard integration\n", clipboardRestarts);
97*4882a593Smuzhiyun g_fClipboard = FALSE;
98*4882a593Smuzhiyun break;
99*4882a593Smuzhiyun }
100*4882a593Smuzhiyun
101*4882a593Smuzhiyun sleep(WIN_CLIPBOARD_DELAY);
102*4882a593Smuzhiyun ErrorF("winClipboardProc - trying to restart clipboard thread \n");
103*4882a593Smuzhiyun }
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun return NULL;
106*4882a593Smuzhiyun }
107*4882a593Smuzhiyun
108*4882a593Smuzhiyun /*
109*4882a593Smuzhiyun * Intialize the Clipboard module
110*4882a593Smuzhiyun */
111*4882a593Smuzhiyun
112*4882a593Smuzhiyun Bool
winInitClipboard(void)113*4882a593Smuzhiyun winInitClipboard(void)
114*4882a593Smuzhiyun {
115*4882a593Smuzhiyun winDebug("winInitClipboard ()\n");
116*4882a593Smuzhiyun
117*4882a593Smuzhiyun /* Spawn a thread for the Clipboard module */
118*4882a593Smuzhiyun if (pthread_create(&g_ptClipboardProc, NULL, winClipboardThreadProc, NULL)) {
119*4882a593Smuzhiyun /* Bail if thread creation failed */
120*4882a593Smuzhiyun ErrorF("winInitClipboard - pthread_create failed.\n");
121*4882a593Smuzhiyun return FALSE;
122*4882a593Smuzhiyun }
123*4882a593Smuzhiyun
124*4882a593Smuzhiyun return TRUE;
125*4882a593Smuzhiyun }
126*4882a593Smuzhiyun
127*4882a593Smuzhiyun void
winClipboardShutdown(void)128*4882a593Smuzhiyun winClipboardShutdown(void)
129*4882a593Smuzhiyun {
130*4882a593Smuzhiyun /* Close down clipboard resources */
131*4882a593Smuzhiyun if (g_fClipboard && g_fClipboardStarted) {
132*4882a593Smuzhiyun /* Synchronously destroy the clipboard window */
133*4882a593Smuzhiyun winClipboardWindowDestroy();
134*4882a593Smuzhiyun
135*4882a593Smuzhiyun /* Wait for the clipboard thread to exit */
136*4882a593Smuzhiyun pthread_join(g_ptClipboardProc, NULL);
137*4882a593Smuzhiyun
138*4882a593Smuzhiyun g_fClipboardStarted = FALSE;
139*4882a593Smuzhiyun
140*4882a593Smuzhiyun winDebug("winClipboardShutdown - Clipboard thread has exited.\n");
141*4882a593Smuzhiyun }
142*4882a593Smuzhiyun }
143