command.h

Go to the documentation of this file.

/* Simple Plugin API */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */
 
#ifndef SPA_COMMAND_H
#define SPA_COMMAND_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <spa/utils/defs.h>
#include <spa/pod/pod.h>
 
struct spa_command_body {
        struct spa_pod_object_body body;
};
 
struct spa_command {
        struct spa_pod          pod;
        struct spa_command_body body;
};
 
#define SPA_COMMAND_TYPE(cmd)           ((cmd)->body.body.type)
#define SPA_COMMAND_ID(cmd,type)        (SPA_COMMAND_TYPE(cmd) == (type) ? \
                                                (cmd)->body.body.id : SPA_ID_INVALID)
 
#define SPA_COMMAND_INIT_FULL(t,size,type,id,...) ((t)                  \
        { { (size), SPA_TYPE_Object },                                  \
          { { (type), (id) }, ##__VA_ARGS__ } })
 
#define SPA_COMMAND_INIT(type,id)                                       \
        SPA_COMMAND_INIT_FULL(struct spa_command,                       \
                        sizeof(struct spa_command_body), type, id)
 
#ifdef __cplusplus
}  /* extern "C" */
#endif
 
#endif /* SPA_COMMAND_H */