2 * Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
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:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
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.
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.
31 /* Not simply (a <= b) because eventually the 32-bit sequence number
32 * will wrap, causing earlier sequence numbers to be higher than later
33 * ones for a brief but fatal period. (a and b must be unsigned.) */
34 #define _xcb_assert_sequence_less(a,b) assert((b) - (a) < 65536)
36 #define _xcb_assert_valid_sequence(c) do { \
37 _xcb_assert_sequence_less((c)->in.request_read, (c)->out.request_written); \
38 _xcb_assert_sequence_less((c)->out.request_written, (c)->out.request); \
43 WORKAROUND_GLX_GET_FB_CONFIGS_BUG
48 typedef struct _xcb_list _xcb_list;
49 typedef void (*XCBListFreeFunc)(void *);
51 _xcb_list *_xcb_list_new(void);
52 void _xcb_list_delete(_xcb_list *list, XCBListFreeFunc do_free);
53 int _xcb_list_insert(_xcb_list *list, void *data);
54 int _xcb_list_append(_xcb_list *list, void *data);
55 void *_xcb_list_peek_head(_xcb_list *list);
56 void *_xcb_list_remove_head(_xcb_list *list);
57 void *_xcb_list_remove(_xcb_list *list, int (*cmp)(const void *, const void *), const void *data);
58 void *_xcb_list_find(_xcb_list *list, int (*cmp)(const void *, const void *), const void *data);
60 typedef _xcb_list _xcb_queue;
62 _xcb_queue *_xcb_queue_new(void);
63 void _xcb_queue_delete(_xcb_queue *q, XCBListFreeFunc do_free);
64 int _xcb_queue_enqueue(_xcb_queue *q, void *data);
65 void *_xcb_queue_dequeue(_xcb_queue *q);
66 int _xcb_queue_is_empty(_xcb_queue *q);
68 typedef _xcb_list _xcb_map;
70 _xcb_map *_xcb_map_new(void);
71 void _xcb_map_delete(_xcb_map *q, XCBListFreeFunc do_free);
72 int _xcb_map_put(_xcb_map *q, unsigned int key, void *data);
73 void *_xcb_map_get(_xcb_map *q, unsigned int key);
74 void *_xcb_map_remove(_xcb_map *q, unsigned int key);
79 /* Index of nearest 4-byte boundary following E. */
80 #define XCB_CEIL(E) (((E)+3)&~3)
82 #define XCB_PAD(i) ((4 - (i & 3)) & 3)
84 int _xcb_set_fd_flags(const int fd);
85 int _xcb_readn(const int fd, void *buf, const int buflen, int *count);
86 int _xcb_read_block(const int fd, void *buf, const size_t len);
87 int _xcb_write(const int fd, char (*buf)[], int *count);
88 int _xcb_writev(const int fd, struct iovec *vec, int count);
93 typedef struct _xcb_out {
103 unsigned int request;
104 unsigned int request_written;
106 pthread_mutex_t reqlenlock;
107 CARD32 maximum_request_length;
110 int _xcb_out_init(_xcb_out *out);
111 void _xcb_out_destroy(_xcb_out *out);
113 int _xcb_out_write(XCBConnection *c);
114 int _xcb_out_write_block(XCBConnection *c, struct iovec *vector, size_t count);
115 int _xcb_out_flush(XCBConnection *c);
120 typedef struct _xcb_in {
121 pthread_cond_t event_cond;
127 unsigned int request_read;
128 _xcb_queue *current_reply;
134 _xcb_queue *pending_replies;
137 int _xcb_in_init(_xcb_in *in);
138 void _xcb_in_destroy(_xcb_in *in);
140 int _xcb_in_expect_reply(XCBConnection *c, unsigned int request, enum workarounds workaround);
142 int _xcb_in_read_packet(XCBConnection *c);
143 int _xcb_in_read(XCBConnection *c);
144 int _xcb_in_read_block(XCBConnection *c, void *buf, int nread);
149 typedef struct _xcb_xid {
150 pthread_mutex_t lock;
157 int _xcb_xid_init(XCBConnection *c);
158 void _xcb_xid_destroy(XCBConnection *c);
163 typedef struct _xcb_ext {
164 pthread_mutex_t lock;
165 _xcb_map *extensions;
168 int _xcb_ext_init(XCBConnection *c);
169 void _xcb_ext_destroy(XCBConnection *c);
174 struct XCBConnection {
176 XCBConnSetupSuccessRep *setup;
180 pthread_mutex_t iolock;
189 int _xcb_conn_wait(XCBConnection *c, const int should_write, pthread_cond_t *cond);