[Mingw-users] sys/poll.h

[Tor L. <tm...@ik...>]

Jeffrey Stephen writes:
 > Does anyone know if the "poll" function has been ported to MinGW?

That is not what MinGW is, something which would offer "ported" system
calls from POSIX.

That said, it is trivial to write a replacement poll() that has the
same API as the real poll() but uses select() internally instead. Of
course, it won't have any of the fundamental extra functionality that
poll() offsers over select(). (I don't remember what that extra
functionality is right now.) When used on top of Winsock, it will
still have the same restriction that Winsock's select() has: work only
on sockets.

In fact, there is such a function in GLib, 45 lines... Note that GLib
is LGPL, so don't just copy it unless your software is licensed
compatibly. Not that it could be written much differently. Look for
the *second* g_poll() in glib/gmain.c. (The first one is for Windows
HANDLEs, and completely different.)

--tml