1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/*
* Copyright (C) 2001-2004 Bart Massey and Jamey Sharp.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the names of the authors or their
* institutions shall not be used in advertising or otherwise to promote the
* sale, use or other dealings in this Software without prior written
* authorization from the authors.
*/
#ifndef __XCBEXT_H
#define __XCBEXT_H
#include "xcb.h"
#ifdef __cplusplus
extern "C" {
#endif
/* xcb_ext.c */
struct xcb_extension_t {
const char *name;
int global_id;
};
/* xcb_out.c */
typedef struct {
size_t count;
xcb_extension_t *ext;
uint8_t opcode;
uint8_t isvoid;
} xcb_protocol_request_t;
enum xcb_send_request_flags_t {
XCB_REQUEST_CHECKED = 1 << 0,
XCB_REQUEST_RAW = 1 << 1,
XCB_REQUEST_DISCARD_REPLY = 1 << 2
};
unsigned int xcb_send_request(xcb_connection_t *c, int flags, struct iovec *vector, const xcb_protocol_request_t *request);
void xcb_send_fd(xcb_connection_t *c, int fd);
/* xcb_take_socket allows external code to ask XCB for permission to
* take over the write side of the socket and send raw data with
* xcb_writev. xcb_take_socket provides the sequence number of the last
* request XCB sent. The caller of xcb_take_socket must supply a
* callback which XCB can call when it wants the write side of the
* socket back to make a request. This callback synchronizes with the
* external socket owner and flushes any output queues if appropriate.
* If you are sending requests which won't cause a reply, please note the
* comment for xcb_writev which explains some sequence number wrap issues.
* */
int xcb_take_socket(xcb_connection_t *c, void (*return_socket)(void *closure), void *closure, int flags, uint64_t *sent);
/* You must own the write-side of the socket (you've called
* xcb_take_socket, and haven't returned from return_socket yet) to call
* xcb_writev. Also, the iovec must have at least 1 byte of data in it.
* You have to make sure that xcb can detect sequence number wraps correctly.
* This means that the first request you send after xcb_take_socket must cause a
* reply (e.g. just insert a GetInputFocus request). After every (1 << 16) - 1
* requests without a reply, you have to insert a request which will cause a
* reply. You can again use GetInputFocus for this. You do not have to wait for
* any of the GetInputFocus replies, but can instead handle them via
* xcb_discard_reply(). */
int xcb_writev(xcb_connection_t *c, struct iovec *vector, int count, uint64_t requests);
/* xcb_in.c */
void *xcb_wait_for_reply(xcb_connection_t *c, unsigned int request, xcb_generic_error_t **e);
int xcb_poll_for_reply(xcb_connection_t *c, unsigned int request, void **reply, xcb_generic_error_t **error);
/* xcb_util.c */
int xcb_popcount(uint32_t mask);
int xcb_sumof(uint8_t *list, int len);
#ifdef __cplusplus
}
#endif
#endif
|
