dbus.h

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/* Simple Plugin API */
/* SPDX-FileCopyrightText: Copyright © 2018 Wim Taymans */
/* SPDX-License-Identifier: MIT */

#ifndef SPA_DBUS_H
#define SPA_DBUS_H

#ifdef __cplusplus
extern "C" {
#endif

#include <spa/support/loop.h>

#ifndef SPA_API_DBUS
 #ifdef SPA_API_IMPL
  #define SPA_API_DBUS SPA_API_IMPL
 #else
  #define SPA_API_DBUS static inline
 #endif
#endif

#define SPA_TYPE_INTERFACE_DBus         SPA_TYPE_INFO_INTERFACE_BASE "DBus"

#define SPA_VERSION_DBUS                0
struct spa_dbus { struct spa_interface iface; };

enum spa_dbus_type {
        SPA_DBUS_TYPE_SESSION,  
        SPA_DBUS_TYPE_SYSTEM,   
        SPA_DBUS_TYPE_STARTER   
};

#define SPA_DBUS_CONNECTION_EVENT_DESTROY       0
#define SPA_DBUS_CONNECTION_EVENT_DISCONNECTED  1
#define SPA_DBUS_CONNECTION_EVENT_NUM           2

struct spa_dbus_connection_events {
#define SPA_VERSION_DBUS_CONNECTION_EVENTS      0
        uint32_t version;

        /* a connection is destroyed */
        void (*destroy) (void *data);

        /* a connection disconnected */
        void (*disconnected) (void *data);
};

struct spa_dbus_connection {
#define SPA_VERSION_DBUS_CONNECTION     1
        uint32_t version;
        void *(*get) (struct spa_dbus_connection *conn);
        void (*destroy) (struct spa_dbus_connection *conn);

        void (*add_listener) (struct spa_dbus_connection *conn,
                        struct spa_hook *listener,
                        const struct spa_dbus_connection_events *events,
                        void *data);
};

SPA_API_DBUS void *spa_dbus_connection_get(struct spa_dbus_connection *conn)
{
        return spa_api_func_r(void *, NULL, conn, get, 0);
}
SPA_API_DBUS void spa_dbus_connection_destroy(struct spa_dbus_connection *conn)
{
        spa_api_func_v(conn, destroy, 0);
}
SPA_API_DBUS void spa_dbus_connection_add_listener(struct spa_dbus_connection *conn,
                struct spa_hook *listener,
                const struct spa_dbus_connection_events *events,
                void *data)
{
        spa_api_func_v(conn, add_listener, 1, listener, events, data);
}

struct spa_dbus_methods {
#define SPA_VERSION_DBUS_METHODS        0
        uint32_t version;

        struct spa_dbus_connection * (*get_connection) (void *object,
                                                        enum spa_dbus_type type);
};

SPA_API_DBUS struct spa_dbus_connection *
spa_dbus_get_connection(struct spa_dbus *dbus, enum spa_dbus_type type)
{
        return spa_api_method_r(struct spa_dbus_connection *, NULL,
                        spa_dbus, &dbus->iface, get_connection, 0, type);
}

#ifdef __cplusplus
}  /* extern "C" */
#endif

#endif /* SPA_DBUS_H */