enki / libev Goto Github PK

First, thanks for such a good library. I tried to run unit tests of userver (https://github.com/userver-framework/userver) on FreeBSD 13.1 and got an assert from libev: libev: kqueue found invalid fd. I think it is a problem of libev:

1. it is not EBADF, it is ENODEV (device doesn't support operation0, /dev/null doesn't support read/write I suppose. One should not assert on that. It looks odd to get "ok, you can read from fd" on Linux and assert on FreeBSD for /dev/null read polls.
2. the error message is cryptic, it is "operation not supported" and not "invalid fd".

How do you compile it on windows?

Does it require compiling?

Thanks.

Dear libev experts,

The library is no longer compatible with C++17. I get:
../include/ev++.h:355:46: error: ISO C++17 does not allow dynamic exception specifications
355 | dynamic_loop (unsigned int flags = AUTO) throw (bad_loop)
| ^~~~~
../include/ev++.h:379:46: error: ISO C++17 does not allow dynamic exception specifications
379 | default_loop (unsigned int flags = AUTO) throw (bad_loop)
| ^~~~~

Best regards,
jodier

I am confused about this line of code:

#define VARx(type,name) VAR(name, type name)

I searched the entire project， and can‘t find definition of macro VAR(name, type name), could you please make a short explain? @enki

Hi I am getting "epoll_wait: Bad file descriptor". this causes my application to close.

the stack is as follows：

I watch a file via inotify, when it is updated, i open it via
ev_io_init(..), and ev_io_start();
when all data is read, i close the file ev_io_stop(..), close(fd)

if a other inotify event is comming, when i open the file with:
ev_io_init(..), and ev_io_start();

in this time, the callback is not called, i need to call it explicitly via ev_invoke(...);
but this is a bad solution, if the file is huge, this will block all my other events watchers (timers, sockets, signals ...etc)

I used libev in my project in windows but I git this error:

"libev: only socket fds supported in this configuration", ioctlsocket (handle, FIONREAD, &arg) == 0
Please help me with the problem.

Hi，I have a doubt，Usually the udp connection is always writable，but If I add the udp connection write event to epoll via ev_io_start, then when can trigger a writable event ?

Hi, guy
I am adapting libev to QNX 7.1 recently, but, the interface statfs() is diffrent to QNX, I would appreciate your help.
Best Regards

Hello, windows now support Unix domain sockets; e.g AF_UNIX/AF_LOCAL, so less plaster
and headaches for trying to emulate and support that thing (took them 25 years to get there), you may finally use select and poll without tweaking hooray. Tchuss.

This is useful to embed libev into a another separate event library.

libuv has this for instance: http://docs.libuv.org/en/v1.x/loop.html#c.uv_backend_fd