main.m revision 35c4bbdf 
1/* main.m
2 *
3 * Copyright (c) 2002-2012 Apple Inc. All rights reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person
6 * obtaining a copy of this software and associated documentation files
7 * (the "Software"), to deal in the Software without restriction,
8 * including without limitation the rights to use, copy, modify, merge,
9 * publish, distribute, sublicense, and/or sell copies of the Software,
10 * and to permit persons to whom the Software is furnished to do so,
11 * subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT.  IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
20 * HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
21 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
23 * DEALINGS IN THE SOFTWARE.
24 *
25 * Except as contained in this notice, the name(s) of the above
26 * copyright holders shall not be used in advertising or otherwise to
27 * promote the sale, use or other dealings in this Software without
28 * prior written authorization.
29 */
30
31#include "pbproxy.h"
32#import "x-selection.h"
33
34#include <pthread.h>
35#include <unistd.h>
36#include <X11/extensions/applewm.h>
37
38Display *xpbproxy_dpy;
39int xpbproxy_apple_wm_event_base, xpbproxy_apple_wm_error_base;
40int xpbproxy_xfixes_event_base, xpbproxy_xfixes_error_base;
41BOOL xpbproxy_have_xfixes;
42
43extern char *display;
44
45#ifdef STANDALONE_XPBPROXY
46BOOL xpbproxy_is_standalone = NO;
47#endif
48
49x_selection *_selection_object;
50
51extern BOOL serverRunning;
52extern pthread_mutex_t serverRunningMutex;
53extern pthread_cond_t serverRunningCond;
54
55static inline void
56wait_for_server_init(void)
57{
58    /* If the server hasn't finished initializing, wait for it... */
59    if (!serverRunning) {
60        pthread_mutex_lock(&serverRunningMutex);
61        while (!serverRunning)
62            pthread_cond_wait(&serverRunningCond, &serverRunningMutex);
63        pthread_mutex_unlock(&serverRunningMutex);
64    }
65}
66
67static int
68x_io_error_handler(Display *dpy)
69{
70    /* We lost our connection to the server. */
71
72    TRACE();
73
74    /* trigger the thread to restart?
75     *   NO - this would be to a "deeper" problem, and restarts would just
76     *        make things worse...
77     */
78#ifdef STANDALONE_XPBPROXY
79    if (xpbproxy_is_standalone)
80        exit(EXIT_FAILURE);
81#endif
82
83    /* Prevent _XIOError from calling exit() */
84    pthread_exit(NULL);
85    return 0;
86}
87
88static int
89x_error_handler(Display *dpy, XErrorEvent *errevent)
90{
91    return 0;
92}
93
94int
95xpbproxy_run(void)
96{
97    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
98    size_t i;
99
100    wait_for_server_init();
101
102    for (i = 0, xpbproxy_dpy = NULL; !xpbproxy_dpy && i < 5; i++) {
103        xpbproxy_dpy = XOpenDisplay(NULL);
104
105        if (!xpbproxy_dpy && display) {
106            char _display[32];
107            snprintf(_display, sizeof(_display), ":%s", display);
108            setenv("DISPLAY", _display, TRUE);
109
110            xpbproxy_dpy = XOpenDisplay(_display);
111        }
112        if (!xpbproxy_dpy)
113            sleep(1);
114    }
115
116    if (xpbproxy_dpy == NULL) {
117        ErrorF("xpbproxy: can't open default display\n");
118        [pool release];
119        return EXIT_FAILURE;
120    }
121
122    XSetIOErrorHandler(x_io_error_handler);
123    XSetErrorHandler(x_error_handler);
124
125    if (!XAppleWMQueryExtension(xpbproxy_dpy, &xpbproxy_apple_wm_event_base,
126                                &xpbproxy_apple_wm_error_base)) {
127        ErrorF("xpbproxy: can't open AppleWM server extension\n");
128        [pool release];
129        return EXIT_FAILURE;
130    }
131
132    xpbproxy_have_xfixes =
133        XFixesQueryExtension(xpbproxy_dpy, &xpbproxy_xfixes_event_base,
134                             &xpbproxy_xfixes_error_base);
135
136    XAppleWMSelectInput(xpbproxy_dpy, AppleWMActivationNotifyMask |
137                        AppleWMPasteboardNotifyMask);
138
139    _selection_object = [[x_selection alloc] init];
140
141    if (!xpbproxy_input_register()) {
142        [pool release];
143        return EXIT_FAILURE;
144    }
145
146    [pool release];
147
148    CFRunLoopRun();
149
150    return EXIT_SUCCESS;
151}
152
153id
154xpbproxy_selection_object(void)
155{
156    return _selection_object;
157}
158
159Time
160xpbproxy_current_timestamp(void)
161{
162    /* FIXME: may want to fetch a timestamp from the server.. */
163    return CurrentTime;
164}
165