XCB: xcbint.h Source File

XCB 1.13

xcbint.h
1 /*
2 * Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
19 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
20 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Except as contained in this notice, the names of the authors or their
23 * institutions shall not be used in advertising or otherwise to promote the
24 * sale, use or other dealings in this Software without prior written
25 * authorization from the authors.
26 */
27
28 #ifndef __XCBINT_H
29 #define __XCBINT_H
30
31 #include "bigreq.h"
32
33 #ifdef HAVE_CONFIG_H
34 #include "config.h"
35 #endif
36
37 #ifdef GCC_HAS_VISIBILITY
38 #pragma GCC visibility push(hidden)
39 #endif
40
41 enum workarounds {
42 WORKAROUND_NONE,
43 WORKAROUND_GLX_GET_FB_CONFIGS_BUG,
44 WORKAROUND_EXTERNAL_SOCKET_OWNER
45 };
46
47 enum lazy_reply_tag
48 {
49 LAZY_NONE = 0,
50 LAZY_COOKIE,
51 LAZY_FORCED
52 };
53
54 #define XCB_PAD(i) (-(i) & 3)
55
56 #define XCB_SEQUENCE_COMPARE(a,op,b) ((int64_t) ((a) - (b)) op 0)
57
58 #ifndef offsetof
59 #define offsetof(type,member) ((size_t) &((type *)0)->member)
60 #endif
61
62 #ifndef MIN
63 #define MIN(x,y) ((x) < (y) ? (x) : (y))
64 #endif
65
66 #define container_of(pointer,type,member) ((type *)(((char *)(pointer)) - offsetof(type, member)))
67
68 /* xcb_list.c */
69
70 typedef void (*xcb_list_free_func_t)(void *);
71
72 typedef struct _xcb_map _xcb_map;
73
74 _xcb_map *_xcb_map_new(void);
75 void _xcb_map_delete(_xcb_map *q, xcb_list_free_func_t do_free);
76 int _xcb_map_put(_xcb_map *q, unsigned int key, void *data);
77 void *_xcb_map_remove(_xcb_map *q, unsigned int key);
78
79
80 /* xcb_out.c */
81
82 #if HAVE_SENDMSG
83 #define XCB_MAX_PASS_FD 16
84
85 typedef struct _xcb_fd {
86 int fd[XCB_MAX_PASS_FD];
87 int nfd;
88 int ifd;
89 } _xcb_fd;
90 #endif
91
92 typedef struct _xcb_out {
93 pthread_cond_t cond;
94 int writing;
95
96 pthread_cond_t socket_cond;
97 void (*return_socket)(void *closure);
98 void *socket_closure;
99 int socket_moving;
100
101 char queue[XCB_QUEUE_BUFFER_SIZE];
102 int queue_len;
103
104 uint64_t request;
105 uint64_t request_written;
106
107 pthread_mutex_t reqlenlock;
108 enum lazy_reply_tag maximum_request_length_tag;
109 union {
110 xcb_big_requests_enable_cookie_t cookie;
111 uint32_t value;
112 } maximum_request_length;
113 #if HAVE_SENDMSG
114 _xcb_fd out_fd;
115 #endif
116 } _xcb_out;
117
118 int _xcb_out_init(_xcb_out *out);
119 void _xcb_out_destroy(_xcb_out *out);
120
121 int _xcb_out_send(xcb_connection_t *c, struct iovec *vector, int count);
122 void _xcb_out_send_sync(xcb_connection_t *c);
123 int _xcb_out_flush_to(xcb_connection_t *c, uint64_t request);
124
125
126 /* xcb_in.c */
127
128 typedef struct _xcb_in {
129 pthread_cond_t event_cond;
130 int reading;
131
132 char queue[4096];
133 int queue_len;
134
135 uint64_t request_expected;
136 uint64_t request_read;
137 uint64_t request_completed;
138 struct reply_list *current_reply;
139 struct reply_list **current_reply_tail;
140
141 _xcb_map *replies;
142 struct event_list *events;
143 struct event_list **events_tail;
144 struct reader_list *readers;
145 struct special_list *special_waiters;
146
147 struct pending_reply *pending_replies;
148 struct pending_reply **pending_replies_tail;
149 #if HAVE_SENDMSG
150 _xcb_fd in_fd;
151 #endif
152 struct xcb_special_event *special_events;
153 } _xcb_in;
154
155 int _xcb_in_init(_xcb_in *in);
156 void _xcb_in_destroy(_xcb_in *in);
157
158 void _xcb_in_wake_up_next_reader(xcb_connection_t *c);
159
160 int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags);
161 void _xcb_in_replies_done(xcb_connection_t *c);
162
163 int _xcb_in_read(xcb_connection_t *c);
164 int _xcb_in_read_block(xcb_connection_t *c, void *buf, int nread);
165
166
167 /* xcb_xid.c */
168
169 typedef struct _xcb_xid {
170 pthread_mutex_t lock;
171 uint32_t last;
172 uint32_t base;
173 uint32_t max;
174 uint32_t inc;
175 } _xcb_xid;
176
177 int _xcb_xid_init(xcb_connection_t *c);
178 void _xcb_xid_destroy(xcb_connection_t *c);
179
180
181 /* xcb_ext.c */
182
183 typedef struct _xcb_ext {
184 pthread_mutex_t lock;
185 struct lazyreply *extensions;
186 int extensions_size;
187 } _xcb_ext;
188
189 int _xcb_ext_init(xcb_connection_t *c);
190 void _xcb_ext_destroy(xcb_connection_t *c);
191
192
193 /* xcb_conn.c */
194
195 struct xcb_connection_t {
196 /* This must be the first field; see _xcb_conn_ret_error(). */
197 int has_error;
198
199 /* constant data */
200 xcb_setup_t *setup;
201 int fd;
202
203 /* I/O data */
204 pthread_mutex_t iolock;
205 _xcb_in in;
206 _xcb_out out;
207
208 /* misc data */
209 _xcb_ext ext;
210 _xcb_xid xid;
211 };
212
213 void _xcb_conn_shutdown(xcb_connection_t *c, int err);
214
215 xcb_connection_t *_xcb_conn_ret_error(int err);
216
217 int _xcb_conn_wait(xcb_connection_t *c, pthread_cond_t *cond, struct iovec **vector, int *count);
218
219
220 /* xcb_auth.c */
221
222 int _xcb_get_auth_info(int fd, xcb_auth_info_t *info, int display);
223
224 #ifdef GCC_HAS_VISIBILITY
225 #pragma GCC visibility pop
226 #endif
227
228 #endif
_xcb_in
Definition: xcbint.h:128
_xcb_ext
Definition: xcbint.h:183
special_list
Definition: xcb_in.c:100
_xcb_xid
Definition: xcbint.h:169
event_list
Definition: xcb_in.c:59
reader_list
Definition: xcb_in.c:94
pending_reply
Definition: xcb_in.c:86
lazyreply
Definition: xcb_ext.c:39
iovec
Definition: xcb_windefs.h:38
xcb_special_event
Definition: xcb_in.c:64
_xcb_out
Definition: xcbint.h:92
reply_list
Definition: xcb_in.c:81
_xcb_map
Definition: xcb_list.c:43
xcb_connection_t
Definition: xcbint.h:195
xcb_setup_t
xcb_setup_t
Definition: xproto.h:475
xcb_big_requests_enable_cookie_t
xcb_big_requests_enable_cookie_t
Definition: bigreq.h:29
xcb_auth_info_t
Container for authorization information.
Definition: xcb.h:228