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Added BParameter::GetValue() and BControllable::GetParameterValue() data transfer

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@3489 a95241bf-73f2-0310-859d-f6bbb57e9c96
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beveloper 2003-06-13 00:43:53 +00:00
parent 17488f48b1
commit 74b216a688
1 changed files with 20 additions and 1 deletions
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21
headers/private/media/DataExchange.h
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@ -32,7 +32,7 @@ status_t QueryServer(int32 msgcode, request_data *request, int requestsize, repl
status_t SendToAddonServer(int32 msgcode, command_data *msg, int size);
status_t QueryAddonServer(int32 msgcode, request_data *request, int requestsize, reply_data *reply, int replysize);
// Raw data based data exchange with the media_server
// Raw data based data exchange with any (media node control-) port
status_t SendToPort(port_id sendport, int32 msgcode, command_data *msg, int size);
status_t QueryPort(port_id requestport, int32 msgcode, request_data *request, int requestsize, reply_data *reply, int replysize);
@ -154,6 +154,8 @@ enum {
FILEINTERFACE_MESSAGE_END,
CONTROLLABLE_MESSAGE_START = 0x600,
CONTROLLABLE_GET_PARAMETER_WEB,
CONTROLLABLE_GET_PARAMETER_DATA,
CONTROLLABLE_SET_PARAMETER_DATA,
CONTROLLABLE_MESSAGE_END,
TIMESOURCE_MESSAGE_START = 0x700,
@ -874,4 +876,21 @@ struct controllable_get_parameter_web_reply : public reply_data
int32 size; // = -1: parameter web data too large, = 0: no p.w., > 0: flattened p.w. data
};
#define MAX_PARAMETER_DATA (B_MEDIA_MESSAGE_SIZE - 100)
struct controllable_get_parameter_data_request : public request_data
{
int32 parameter_id;
size_t requestsize;
area_id area; //if area != -1, data is to large and must be passed in area
};
struct controllable_get_parameter_data_reply : public reply_data
{
bigtime_t last_change;
char rawdata[MAX_PARAMETER_DATA];
size_t size;
};
#endif // _DATA_EXCHANGE_H