ADIC Digital Camera 601355 Rev A 사용자 설명서

601355 Rev A

API Functions

2-383

VS_Select

 requests the VolServ API to wait for command 

status from VolServ when the API in operating in asynchronous 
mode.

In asynchronous mode, the client issues a VolServ command 
through the API, immediately receives initial status for the 
command, issues 

VS_Select

 to request that the API wait for 

intermediate and/or final status, and continues processing. 
When the API receives intermediate or final status from 
VolServ, it calls the specified client dispatch routine to process 
the status and the outstanding 

VS_Select

 function 

terminates. It is the client’s responsibility to issue the 

VS_Select

 for each intermediate and final status expected for 

a command.

int VS_Select (void)

Arguments

None

VS_Select

 returns:

•

VSE_TRUE

 - Successful execution.

•

VSE_FALSE

 - API failure - An appropriate error code is set 

in 

VSG_Error

.

•

VSE_ERR_NONE

 - Successfully received and processed 

status.

•

VSE_ERR_NOTINITIALIZED

 - The VolServ API is not 

initialized.

•

VSE_ERR_SELECT

 - An error occurred during a select 

system call.