Q: how to peek at incoming http requests in pipelined mode

[kamenl]

This is actually a question; asked on the libevent mailing list, but I was redirected here, and seems there is no separate list or forum for libevhtp. Might turn out to be a feature request...

Consider the following scenario:

• Client side uses http pipelining and sends requests before waiting for the previous one to fully complete
• Server side responds, but sometimes cannot respond right away, so I pause the connection for a while

From time to time, on the server side, while the connection has been paused and serving a previous request, I'd like to check if a new request has come over the wire; if not, I'd like to continue the paused state; if yes, I'd like to unpause, send a response and have the listener and parser accept the incoming request and go on about its business.

Is there a way to peek at the (paused) input pipe while not ruining the paused state's internal state (pardon the tautology)?