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 typedef struct _xcb_list _xcb_list;
44 typedef void (*XCBListFreeFunc)(void *);
46 _xcb_list *_xcb_list_new(void);
47 void _xcb_list_delete(_xcb_list *list, XCBListFreeFunc do_free);
48 int _xcb_list_insert(_xcb_list *list, void *data);
49 int _xcb_list_append(_xcb_list *list, void *data);
50 void *_xcb_list_peek_head(_xcb_list *list);
51 void *_xcb_list_remove_head(_xcb_list *list);
52 void *_xcb_list_remove(_xcb_list *list, int (*cmp)(const void *, const void *), const void *data);
53 void *_xcb_list_find(_xcb_list *list, int (*cmp)(const void *, const void *), const void *data);
55 typedef _xcb_list _xcb_queue;
57 _xcb_queue *_xcb_queue_new(void);
58 void _xcb_queue_delete(_xcb_queue *q, XCBListFreeFunc do_free);
59 int _xcb_queue_enqueue(_xcb_queue *q, void *data);
60 void *_xcb_queue_dequeue(_xcb_queue *q);
61 int _xcb_queue_is_empty(_xcb_queue *q);
63 typedef _xcb_list _xcb_map;
65 _xcb_map *_xcb_map_new(void);
66 void _xcb_map_delete(_xcb_map *q, XCBListFreeFunc do_free);
67 int _xcb_map_put(_xcb_map *q, unsigned int key, void *data);
68 void *_xcb_map_get(_xcb_map *q, unsigned int key);
69 void *_xcb_map_remove(_xcb_map *q, unsigned int key);
74 /* Index of nearest 4-byte boundary following E. */
75 #define XCB_CEIL(E) (((E)+3)&~3)
77 #define XCB_PAD(i) ((4 - (i & 3)) & 3)
79 int _xcb_set_fd_flags(const int fd);
80 int _xcb_readn(const int fd, void *buf, const int buflen, int *count);
81 int _xcb_read_block(const int fd, void *buf, const size_t len);
82 int _xcb_write(const int fd, char (*buf)[], int *count);
83 int _xcb_writev(const int fd, struct iovec *vec, int count);
88 typedef struct _xcb_out {
99 unsigned int request_written;
101 pthread_mutex_t reqlenlock;
102 CARD32 maximum_request_length;
105 int _xcb_out_init(_xcb_out *out);
106 void _xcb_out_destroy(_xcb_out *out);
108 int _xcb_out_write(XCBConnection *c);
109 int _xcb_out_write_block(XCBConnection *c, struct iovec *vector, size_t count);
110 int _xcb_out_flush(XCBConnection *c);
115 typedef struct _xcb_in {
116 pthread_cond_t event_cond;
122 unsigned int request_read;
123 _xcb_queue *current_reply;
130 int _xcb_in_init(_xcb_in *in);
131 void _xcb_in_destroy(_xcb_in *in);
133 int _xcb_in_expect_reply(XCBConnection *c, unsigned int request);
135 int _xcb_in_read_packet(XCBConnection *c);
136 int _xcb_in_read(XCBConnection *c);
137 int _xcb_in_read_block(XCBConnection *c, void *buf, int nread);
142 typedef struct _xcb_xid {
143 pthread_mutex_t lock;
150 int _xcb_xid_init(XCBConnection *c);
151 void _xcb_xid_destroy(XCBConnection *c);
156 typedef struct _xcb_ext {
157 pthread_mutex_t lock;
158 _xcb_map *extensions;
161 int _xcb_ext_init(XCBConnection *c);
162 void _xcb_ext_destroy(XCBConnection *c);
167 struct XCBConnection {
169 XCBConnSetupSuccessRep *setup;
173 pthread_mutex_t iolock;
182 int _xcb_conn_wait(XCBConnection *c, const int should_write, pthread_cond_t *cond);