XCB 1.8.1

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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 typedef struct _xcb_out {
83 pthread_cond_t cond;
84 int writing;
85
86 pthread_cond_t socket_cond;
87 void (*return_socket)(void *closure);
88 void *socket_closure;
89 int socket_moving;
90
91 char queue[XCB_QUEUE_BUFFER_SIZE];
92 int queue_len;
93
94 uint64_t request;
95 uint64_t request_written;
96
97 pthread_mutex_t reqlenlock;
98 enum lazy_reply_tag maximum_request_length_tag;
99 union {
100 xcb_big_requests_enable_cookie_t cookie;
101 uint32_t value;
102 } maximum_request_length;
103 } _xcb_out;
104
105 int _xcb_out_init(_xcb_out *out);
106 void _xcb_out_destroy(_xcb_out *out);
107
108 int _xcb_out_send(xcb_connection_t *c, struct iovec *vector, int count);
109 void _xcb_out_send_sync(xcb_connection_t *c);
110 int _xcb_out_flush_to(xcb_connection_t *c, uint64_t request);
111
112
113 /* xcb_in.c */
114
115 typedef struct _xcb_in {
116 pthread_cond_t event_cond;
117 int reading;
118
119 char queue[4096];
120 int queue_len;
121
122 uint64_t request_expected;
123 uint64_t request_read;
124 uint64_t request_completed;
125 struct reply_list *current_reply;
126 struct reply_list **current_reply_tail;
127
128 _xcb_map *replies;
129 struct event_list *events;
130 struct event_list **events_tail;
131 struct reader_list *readers;
132
133 struct pending_reply *pending_replies;
134 struct pending_reply **pending_replies_tail;
135 } _xcb_in;
136
137 int _xcb_in_init(_xcb_in *in);
138 void _xcb_in_destroy(_xcb_in *in);
139
140 void _xcb_in_wake_up_next_reader(xcb_connection_t *c);
141
142 int _xcb_in_expect_reply(xcb_connection_t *c, uint64_t request, enum workarounds workaround, int flags);
143 void _xcb_in_replies_done(xcb_connection_t *c);
144
145 int _xcb_in_read(xcb_connection_t *c);
146 int _xcb_in_read_block(xcb_connection_t *c, void *buf, int nread);
147
148
149 /* xcb_xid.c */
150
151 typedef struct _xcb_xid {
152 pthread_mutex_t lock;
153 uint32_t last;
154 uint32_t base;
155 uint32_t max;
156 uint32_t inc;
157 } _xcb_xid;
158
159 int _xcb_xid_init(xcb_connection_t *c);
160 void _xcb_xid_destroy(xcb_connection_t *c);
161
162
163 /* xcb_ext.c */
164
165 typedef struct _xcb_ext {
166 pthread_mutex_t lock;
167 struct lazyreply *extensions;
168 int extensions_size;
169 } _xcb_ext;
170
171 int _xcb_ext_init(xcb_connection_t *c);
172 void _xcb_ext_destroy(xcb_connection_t *c);
173
174
175 /* xcb_conn.c */
176
177 struct xcb_connection_t {
178 int has_error;
179
180 /* constant data */
181 xcb_setup_t *setup;
182 int fd;
183
184 /* I/O data */
185 pthread_mutex_t iolock;
186 _xcb_in in;
187 _xcb_out out;
188
189 /* misc data */
190 _xcb_ext ext;
191 _xcb_xid xid;
192 };
193
194 void _xcb_conn_shutdown(xcb_connection_t *c, int err);
195
196 xcb_connection_t *_xcb_conn_ret_error(int err);
197
198 int _xcb_conn_wait(xcb_connection_t *c, pthread_cond_t *cond, struct iovec **vector, int *count);
199
200
201 /* xcb_auth.c */
202
203 int _xcb_get_auth_info(int fd, xcb_auth_info_t *info, int display);
204
205 #ifdef GCC_HAS_VISIBILITY
206 #pragma GCC visibility pop
207 #endif
208
209 #endif