metadata.h

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/*
  Copyright (C) 2011-2014 David Robillard
  Copyright (C) 2013 Paul Davis
 
  This program is free software; you can redistribute it and/or modify it
  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.
 
  This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
  License for more details.
 
  You should have received a copy of the GNU Lesser General Public License
  along with this program; if not, write to the Free Software Foundation,
  Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
 
#ifndef __jack_metadata_h__
#define __jack_metadata_h__
 
#include <jack/types.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
typedef struct {
    const char* key;
 
    const char* data;
 
    const char* type;
} jack_property_t;
 
int
jack_set_property(jack_client_t*,
                  jack_uuid_t subject,
                  const char* key,
                  const char* value,
                  const char* type);
 
int
jack_get_property(jack_uuid_t subject,
                  const char* key,
                  char**      value,
                  char**      type);
 
typedef struct {
    jack_uuid_t      subject;        
    uint32_t         property_cnt;   
    jack_property_t* properties;     
    uint32_t         property_size;  
} jack_description_t;
 
void
jack_free_description (jack_description_t* desc, int free_description_itself);
 
int
jack_get_properties (jack_uuid_t         subject,
                     jack_description_t* desc);
 
int
jack_get_all_properties (jack_description_t** descs);
 
int jack_remove_property (jack_client_t* client, jack_uuid_t subject, const char* key);
 
int jack_remove_properties (jack_client_t* client, jack_uuid_t subject);
 
int jack_remove_all_properties (jack_client_t* client);
 
typedef enum {
        PropertyCreated,
        PropertyChanged,
        PropertyDeleted
} jack_property_change_t;
 
typedef void (*JackPropertyChangeCallback)(jack_uuid_t            subject,
                                           const char*            key,
                                           jack_property_change_t change,
                                           void*                  arg);
 
int jack_set_property_change_callback (jack_client_t*             client,
                                       JackPropertyChangeCallback callback,
                                       void*                      arg);
 
extern const char* JACK_METADATA_CONNECTED;
 
extern const char* JACK_METADATA_EVENT_TYPES;
 
extern const char* JACK_METADATA_HARDWARE;
 
extern const char* JACK_METADATA_ICON_LARGE;
 
extern const char* JACK_METADATA_ICON_NAME;
 
extern const char* JACK_METADATA_ICON_SMALL;
 
extern const char* JACK_METADATA_ORDER;
 
extern const char* JACK_METADATA_PRETTY_NAME;
 
extern const char* JACK_METADATA_PORT_GROUP;
 
extern const char* JACK_METADATA_SIGNAL_TYPE;
 
#ifdef __cplusplus
} /* namespace */
#endif
 
#endif  /* __jack_metadata_h__ */