I am also looking at the bulk dequeue routines, which the ring can be fixed or variable. On fixed < 0 on error is returned and 0 if successful. On a variable ring < 0 on error or n on success, but I think n can be zero in the variable case, correct?
If these are true then why not have the routines return < 0 on error and >= 0 on success. Which means a dequeue from a fixed ring would return only ?requested size n? or < 0 if you error off the 0 case. The 0 case could be OK, if you allow zero to be return on a empty ring for the fixed ring case. Does this make sense to anyone? Thanks ++Keith Keith Wiles, Principal Technologist with CTO office, Wind River mobile 972-213-5533