XCB  1.10
xcbext.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 __XCBEXT_H
29 #define __XCBEXT_H
30 
31 #include "xcb.h"
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 /* xcb_ext.c */
38 
40  const char *name;
41  int global_id;
42 };
43 
44 
45 /* xcb_out.c */
46 
47 typedef struct {
48  size_t count;
49  xcb_extension_t *ext;
50  uint8_t opcode;
51  uint8_t isvoid;
53 
54 enum xcb_send_request_flags_t {
55  XCB_REQUEST_CHECKED = 1 << 0,
56  XCB_REQUEST_RAW = 1 << 1,
57  XCB_REQUEST_DISCARD_REPLY = 1 << 2,
58  XCB_REQUEST_REPLY_FDS = 1 << 3
59 };
60 
61 unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vector, const xcb_protocol_request_t *request);
62 
63 void xcb_send_fd(xcb_connection_t *c, int fd);
64 
65 /* xcb_take_socket allows external code to ask XCB for permission to
66  * take over the write side of the socket and send raw data with
67  * xcb_writev. xcb_take_socket provides the sequence number of the last
68  * request XCB sent. The caller of xcb_take_socket must supply a
69  * callback which XCB can call when it wants the write side of the
70  * socket back to make a request. This callback synchronizes with the
71  * external socket owner and flushes any output queues if appropriate.
72  * If you are sending requests which won't cause a reply, please note the
73  * comment for xcb_writev which explains some sequence number wrap issues.
74  * */
75 int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), void *closure, int flags, uint64_t *sent);
76 
77 /* You must own the write-side of the socket (you've called
78  * xcb_take_socket, and haven't returned from return_socket yet) to call
79  * xcb_writev. Also, the iovec must have at least 1 byte of data in it.
80  * You have to make sure that xcb can detect sequence number wraps correctly.
81  * This means that the first request you send after xcb_take_socket must cause a
82  * reply (e.g. just insert a GetInputFocus request). After every (1 << 16) - 1
83  * requests without a reply, you have to insert a request which will cause a
84  * reply. You can again use GetInputFocus for this. You do not have to wait for
85  * any of the GetInputFocus replies, but can instead handle them via
86  * xcb_discard_reply(). */
87 int xcb_writev(xcb_connection_t *c, struct iovec *vector, int count, uint64_t requests);
88 
89 
90 /* xcb_in.c */
91 
92 void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_error_t **e);
93 int xcb_poll_for_reply(xcb_connection_t *c, unsigned int request, void **reply, xcb_generic_error_t **error);
94 int *xcb_get_reply_fds(xcb_connection_t *c, void *reply, size_t replylen);
95 
96 
97 /* xcb_util.c */
98 
99 int xcb_popcount(uint32_t mask);
100 int xcb_sumof(uint8_t *list, int len);
101 
102 #ifdef __cplusplus
103 }
104 #endif
105 
106 #endif
Generic error.
Definition: xcb.h:170
Definition: xcbext.h:39
Definition: xcb_windefs.h:38
Definition: xcbext.h:47
Definition: xcbint.h:194