On Wed, Jul 17, 2013 at 11:26:06AM -0700, Alex Wang wrote:
> Just one question, for the code below in "lib/byteq.c"
>
> """
> /* Returns the number of bytes current queued in 'q'. */
> int
> byteq_used(const struct byteq *q)
> {
> return q->head - q->tail;
> }
> """
>
> Is it possible that the jsonrpc session last so long that the 'q->head'
> gets overflowed? or the chance is so slim that we do not care,
It can overflow but it doesn't matter, arithmetic modulo 2**N will
always do the right thing anyway.
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