xref: /OK3568_Linux_fs/external/xserver/hw/xquartz/quartzStartup.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1 /**************************************************************
2  *
3  * Startup code for the Quartz Darwin X Server
4  * Copyright (c) 2008-2012 Apple Inc. All rights reserved.
5  * Copyright (c) 2001-2004 Torrey T. Lyons. All Rights Reserved.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11  * and/or sell copies of the Software, and to permit persons to whom the
12  * Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
21  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22  * ARISING FROM, 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 copyright
26  * holders shall not be used in advertising or otherwise to promote the sale,
27  * use or other dealings in this Software without prior written authorization.
28  */
29 
30 #include "sanitizedCarbon.h"
31 
32 #ifdef HAVE_DIX_CONFIG_H
33 #include <dix-config.h>
34 #endif
35 
36 #include <fcntl.h>
37 #include <unistd.h>
38 #include <CoreFoundation/CoreFoundation.h>
39 #include "X11Controller.h"
40 #include "darwin.h"
41 #include "darwinEvents.h"
42 #include "quartz.h"
43 #include "opaque.h"
44 #include "micmap.h"
45 
46 #include <assert.h>
47 
48 #include <pthread.h>
49 
50 int
51 dix_main(int argc, char **argv, char **envp);
52 
53 struct arg {
54     int argc;
55     char **argv;
56     char **envp;
57 };
58 
59 _X_NORETURN
60 static void
server_thread(void * arg)61 server_thread(void *arg)
62 {
63     struct arg args = *((struct arg *)arg);
64     free(arg);
65     exit(dix_main(args.argc, args.argv, args.envp));
66 }
67 
68 static pthread_t
create_thread(void * func,void * arg)69 create_thread(void *func, void *arg)
70 {
71     pthread_attr_t attr;
72     pthread_t tid;
73 
74     pthread_attr_init(&attr);
75     pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
76     pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
77     pthread_create(&tid, &attr, func, arg);
78     pthread_attr_destroy(&attr);
79 
80     return tid;
81 }
82 
83 void
QuartzInitServer(int argc,char ** argv,char ** envp)84 QuartzInitServer(int argc, char **argv, char **envp)
85 {
86     struct arg *args = (struct arg *)malloc(sizeof(struct arg));
87     if (!args)
88         FatalError("Could not allocate memory.\n");
89 
90     args->argc = argc;
91     args->argv = argv;
92     args->envp = envp;
93 
94     if (!create_thread(server_thread, args)) {
95         FatalError("can't create secondary thread\n");
96     }
97 
98     /* Block signals on the AppKit thread that the X11 expects to handle on its thread */
99     sigset_t set;
100     sigemptyset(&set);
101     sigaddset(&set, SIGALRM);
102 #ifdef BUSFAULT
103     sigaddset(&set, SIGBUS);
104 #endif
105     pthread_sigmask(SIG_BLOCK, &set, NULL);
106 }
107 
108 int
server_main(int argc,char ** argv,char ** envp)109 server_main(int argc, char **argv, char **envp)
110 {
111     int i;
112     int fd[2];
113 
114     /* Unset CFProcessPath, so our children don't inherit this kludge we need
115      * to load our nib.  If an xterm gets this set, then it fails to
116      * 'open hi.txt' properly.
117      */
118     unsetenv("CFProcessPath");
119 
120     // Make a pipe to pass events
121     assert(pipe(fd) == 0);
122     darwinEventReadFD = fd[0];
123     darwinEventWriteFD = fd[1];
124     fcntl(darwinEventReadFD, F_SETFL, O_NONBLOCK);
125 
126     for (i = 1; i < argc; i++) {
127         // Display version info without starting Mac OS X UI if requested
128         if (!strcmp(argv[i],
129                     "-showconfig") || !strcmp(argv[i], "-version")) {
130             DarwinPrintBanner();
131             exit(0);
132         }
133     }
134 
135     X11ControllerMain(argc, argv, envp);
136     exit(0);
137 }
138