Re: Why the edge-triggered mode doesn't work for epoll file descriptor?

Hello, Thank you reply. On Mon, Aug 26, 2019 at 2:22 PM Eric Wong wrote: > > Heiher wrote: > > Hello, > > > > I've added a pipe file descriptor (fd1) to an epoll (fd3) with > > EPOLLOUT in edge-triggered mode, and then added the fd3 to another > > epoll (fd4) with EPOLLIN in edge-triggered too.

Re: Why the edge-triggered mode doesn't work for epoll file descriptor?

Heiher wrote: > Hello, > > I've added a pipe file descriptor (fd1) to an epoll (fd3) with > EPOLLOUT in edge-triggered mode, and then added the fd3 to another > epoll (fd4) with EPOLLIN in edge-triggered too. > > Next, waiting for fd4 without timeout. When fd1 to be writable, i > think epoll_wai

Re: Why the edge-triggered mode doesn't work for epoll file descriptor?

On Sun, Aug 18, 2019 at 12:36 AM Heiher wrote: > > Hello, > > I've added a pipe file descriptor (fd1) to an epoll (fd3) with > EPOLLOUT in edge-triggered mode, and then added the fd3 to another > epoll (fd4) with EPOLLIN in edge-triggered too. > > Next, waiting for fd4 without timeout. When fd1 to

Why the edge-triggered mode doesn't work for epoll file descriptor?

Hello, I've added a pipe file descriptor (fd1) to an epoll (fd3) with EPOLLOUT in edge-triggered mode, and then added the fd3 to another epoll (fd4) with EPOLLIN in edge-triggered too. Next, waiting for fd4 without timeout. When fd1 to be writable, i think epoll_wait(fd4, ...) only return once,