fds, as with the
poll() system call, but portably. (On
systems that don’t have poll(), it is emulated using select().)
This is used internally by
GMainContext, but it can be called
directly if you need to block until a file descriptor is ready, but
don’t want to run the full main loop.
Each element of
fds is a
GPollFD describing a single file
descriptor to poll. The
fd field indicates the file descriptor,
events field indicates the events to poll for. On return,
revents fields will be filled with the events that actually occurred.
On POSIX systems, the file descriptors in
fds can be any sort of
file descriptor, but the situation is much more complicated on
Windows. If you need to use
g_poll() in code that has to run on
Windows, the easiest solution is to construct all of your
GPollFDs with g_io_channel_win32_make_pollfd().
Available since: 2.20
File descriptors to poll.
The data is owned by the caller of the function.
The number of file descriptors in
Amount of time to wait, in milliseconds, or -1 to wait forever.