mzabaluev / glib-uv Goto Github PK

Currently libuv aborts when EPOLL_CTL_ADD fails to add a descriptor to the poll. This can happen when the descriptor is not pollable accordingly to the kernel. The GMainContext API in GLib, however, supports any Unix descriptors because the upstream implementation uses POSIX poll().
To fix this, libuv should be changed to gracefully report such failures, e.g. by calling the poll callback once with an error status.

Hi!
It's been long time to commit however, would you help me for build this?
I was trying to build with autoconf, and there are some problems.

$ vim configure.ac
$ libtoolize --force
$ aclocal
$ autoheader
$ automake --force-missing --add-missing
$ autoconf
$autoreconf -fi
./configure
....
...
..
.
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for GLIB... yes
checking for UV... yes
checking whether g_main_loop_new_with_poller is declared... no
configure: error: GLib poller support is required

libuv does not support polling for "urgent data". The need for this is marginal, but in case there is any GLib code that relies on G_IO_PRI events, the uv backend has to support it.

One solution is to have a helper thread per each context that's got a G_IO_PRI descriptor added. The thread would poll for events not supported by libuv, doing it concurrently with the polling in libuv, unblocking immediately (e.g. via eventfd) when the libuv poll has unblocked and vice versa.