Spread 4.0.0 C API

SP_poll
 
int SP_poll (mailbox mbox);


Parameters
  mbox Spread connection handle to poll on


Return Values
  0 No messages waiting
  < 0 Error (most likely ILLEGAL_SESSION if mbox is illegal. Usually because it is not active)
  > 0 Messages waiting to be received (number of bytes available)


Description
  SP_poll is a way to poll a mailbox to see if any messages are available for receiving.


Requirements
  Header: Include sp.h
Library: Use libspread
Version: 4.0


Also See
  spread programmer's reference