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
|
/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2025 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#ifndef BRLTTY_INCLUDED_MSG_QUEUE
#define BRLTTY_INCLUDED_MSG_QUEUE
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
typedef long int MessageType;
extern int sendMessage (int queue, MessageType type, const void *content, size_t length, int flags);
extern ssize_t receiveMessage (int queue, MessageType *type, void *buffer, size_t size, int flags);
typedef struct {
void *data;
MessageType type;
size_t length;
char content[];
} MessageHandlerParameters;
typedef void MessageHandler (const MessageHandlerParameters *parameters);
extern int startMessageReceiver (const char *name, int queue, MessageType type, size_t size, MessageHandler *handler, void *data);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* BRLTTY_INCLUDED_MSG_QUEUE */
|
