Hi, I'm programming a libevent2 based app that measures read/write efficiency from a remote (TCP) server using event based paradigms.
Since I'm new to libevent's and event based paradigm, I'm also using 'buffervevent' and 'evbuffer' interfaces to gather and push data onto sockets instead of plain old read/write syscalls.
My app is being limited by (it seems) a hardcoded limit of 4096 bytes when i fully drain a evbuffer on a single call. Instead, i would like to know if there is any special function/interface to modify this limit.
I know there is a specialized call 'bufferevent_setwatermark(...)' and
even rate limit interfaces, that would allow a read or write event be dispatched to my callback whenever a low/high watermark level was being reached. The problem is that when using this kind of calls, libevent core aggregate and wait until this limit comes true what would confuse the stats i'm measuring, and also would not be as efficient as changing the read/write data len bucket directly and getting more data in a single roll/call (this premise is for my study case).
Is any other interface available on libevent 2.0 that would allow to change this 4096 byte limit? If not, would be possible including it on the 2.0 release timeframe?
I discovered this using 'socat' program and connecting to it from my libevent2.0 based test app:
$ socat
TCP-LISTEN:8080,bind=localhost,fork,reuseaddr /dev/zero
BTW, i would like to congratulate the libevent devteam for the great job done so far and for the attention given to the community!
Best regards,
Raine