Posted
by timn
on Stack Overflow
See other posts from Stack Overflow
or by timn
Published on 2010-03-31T17:18:27Z
Indexed on
2010/03/31
17:23 UTC
Read the original article
Hit count: 201
The man page of epoll_ctl() says about EPOLLPRI:
There is urgent data available for read(2) operations.
How exactly is "urgent data" defined and who decides which data has priority?
© Stack Overflow or respective owner
as seen on Stack Overflow
- Search for 'Stack Overflow'
Nginx uses epoll, or other multiplexing techniques(select) for its handling multiple clients, i.e it does not spawn a new thread for every request unlike apache.
I tried to replicate the same in my own test program using select. I could accept connections from multiple client by creating a non-blocking…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
Hi,
I'm programming an application(client/server) in C++ for linux using epoll y pthreads but I don't know how to handle the connect() calls for attach a new connection in the descriptor list if a loop with epoll_wait() is running(Edge-triggered), How to can I do it?... I could to use a dummy file…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
The epoll manpage says that a fd registered with EPOLLET(edge triggered) shouldn't notify twice EPOLLIN if no read has been done.
So after an EPOLLIN you need to empty the buffer before epoll_wait being able to return a new EPOLLIN on new data.
However I'm experiencing problems with this approach…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
My linux application is performing non-blocking TCP connect syscall and then use epoll_wait to detect three way handshake completion.
Sometimes epoll_wait returns with both POLLOUT & POLLERR revents set for the same socket descriptor.
I would like to understand what's going on at TCP level.
I'm…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
there is an interesting page http://scotdoyle.com/python-epoll-howto.html about how to do asnchronous / non-blocking / AIO http serving in python 3.
there is the tornado web server which does include a non-blocking http client. i have managed to port parts of the server to python 3.1, but the implementation…
>>> More
