I am looking for least expensive options. No buffer copying, etc. Peek or search API will take us to the spot, but, any buffer iovec writes will result in undefined behavior, as per documentation.
On Nov 15, 2016 2:34 PM, "Azat Khuzhin" <[email protected]> wrote: > On Tue, Nov 15, 2016 at 9:12 PM, Devi Prasad Ivaturi <[email protected]> > wrote: > > How can I modify a byte or two directly in evbuffer data? > > Hi, > > If you don't want to use pullup, you can use something like (but only > if you data at the beginning of the buffer, otherwise it is like > pullup): > evbuffer_remove(buf, data, bytes); > data[1] = 'x'; > evbuffer_prepend(buf, data, bytes); > > Or > evbuffer_ptr_evbuffer_search() # but be aware of continuous > > But I'm not sure that this is optimal though. > > Azat. > *********************************************************************** > To unsubscribe, send an e-mail to [email protected] with > unsubscribe libevent-users in the body. >
