PipeWire  0.3.45
command.h
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1 /* Simple Plugin API
2  *
3  * Copyright © 2018 Wim Taymans
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 (including the next
13  * paragraph) shall be included in all copies or substantial portions of the
14  * Software.
15  *
16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22  * DEALINGS IN THE SOFTWARE.
23  */
24 
25 #ifndef SPA_COMMAND_H
26 #define SPA_COMMAND_H
27 
28 #ifdef __cplusplus
29 extern "C" {
30 #endif
31 
32 #include <spa/utils/defs.h>
33 #include <spa/pod/pod.h>
34 
40 struct spa_command_body {
42 };
43 
44 struct spa_command {
45  struct spa_pod pod;
46  struct spa_command_body body;
47 };
48 
49 #define SPA_COMMAND_TYPE(cmd) ((cmd)->body.body.type)
50 #define SPA_COMMAND_ID(cmd,type) (SPA_COMMAND_TYPE(cmd) == type ? \
51  (cmd)->body.body.id : SPA_ID_INVALID)
52 
53 #define SPA_COMMAND_INIT_FULL(t,size,type,id,...) (t) \
54  { { size, SPA_TYPE_Object }, \
55  { { type, id }, ##__VA_ARGS__ } } \
56 
57 #define SPA_COMMAND_INIT(type,id) \
58  SPA_COMMAND_INIT_FULL(struct spa_command, \
59  sizeof(struct spa_command_body), type, id)
60 
65 #ifdef __cplusplus
66 } /* extern "C" */
67 #endif
68 
69 #endif /* SPA_COMMAND_H */
spa/utils/defs.h
spa/pod/pod.h
Definition: command.h:45
struct spa_pod_object_body body
Definition: command.h:46
Definition: command.h:49
struct spa_command_body body
Definition: command.h:51
struct spa_pod pod
Definition: command.h:50
Definition: pod.h:197
Definition: pod.h:63