Why does not select() work on SysV Message Queues?

[Bhanu Kalyan Chetlapalli <chbhanukalyan@xxxxxxxxx>]

Hi guyz,

 

           Could anyone please inform me the reason why select() does not work on SysV message queues? I know that message queues used Ids which are not exactly file descriptors. And select() works only with file descriptors.

 

          I am looking for the Historical reason why this (making SysV msgqs as selectable) was never done. Am I missing something very fundamental here?

 

Regards,

Bhanu.