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vbi_channel_profile Struct Reference
[VBI capture proxy interface]

Proxy scheduler parameters for background channel switching. More...


Data Fields

uint8_t is_valid
uint8_t sub_prio
uint8_t allow_suspend
uint8_t reserved0
time_t min_duration
time_t exp_duration
uint8_t reserved1 [16]


Detailed Description

Proxy scheduler parameters for background channel switching.

This structure is passed along with channel change requests for clients with priority VBI_CHN_PRIO_BACKGROUND. The parameters are used by the proxy daemon to share channel control between multiple clients with background priority.


Field Documentation

uint8_t vbi_channel_profile::is_valid
 

Boolean: Ignore contents of this struct unless TRUE

uint8_t vbi_channel_profile::sub_prio
 

Sub-priority for channel scheduling at "background" priority. You can use aribtrary values in the range 0 ... 256, but as this value is only meaningful in relation to priorities used by other clients, you should stick to the scale defined by VBI_CHN_SUBPRIO

uint8_t vbi_channel_profile::allow_suspend
 

Boolean: Set to FALSE if your capture client needs an atomic time slice (i.e. would need to restart capturing from the beginning it it was interrupted.)

time_t vbi_channel_profile::min_duration
 

Minimum time slice your capture client requires. This value is used when multiple clients have the same sub-priority to give all clients channel control in a round-robin manner.

time_t vbi_channel_profile::exp_duration
 

Expected duration of use of that channel


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