mirror of
https://github.com/git/git.git
synced 2024-11-01 14:57:52 +01:00
d7e357fb9c
Windows Vista (and later) actually have a working poll(), but we still cannot use it because it only works on sockets. So let's detect when we are targeting Windows Vista and undefine those constants, and define `pollfd` so that we can declare our own pollfd struct. We also need to make sure that we override those constants *after* `winsock2.h` has been `#include`d (otherwise we would not really override those constants). Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
67 lines
2.1 KiB
C
67 lines
2.1 KiB
C
/* Header for poll(2) emulation
|
|
Contributed by Paolo Bonzini.
|
|
|
|
Copyright 2001, 2002, 2003, 2007, 2009, 2010 Free Software Foundation, Inc.
|
|
|
|
This file is part of gnulib.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along
|
|
with this program; if not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#ifndef _GL_POLL_H
|
|
#define _GL_POLL_H
|
|
|
|
#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x600
|
|
/* Vista has its own, socket-only poll() */
|
|
#undef POLLIN
|
|
#undef POLLPRI
|
|
#undef POLLOUT
|
|
#undef POLLERR
|
|
#undef POLLHUP
|
|
#undef POLLNVAL
|
|
#undef POLLRDNORM
|
|
#undef POLLRDBAND
|
|
#undef POLLWRNORM
|
|
#undef POLLWRBAND
|
|
#define pollfd compat_pollfd
|
|
#endif
|
|
|
|
/* fake a poll(2) environment */
|
|
#define POLLIN 0x0001 /* any readable data available */
|
|
#define POLLPRI 0x0002 /* OOB/Urgent readable data */
|
|
#define POLLOUT 0x0004 /* file descriptor is writeable */
|
|
#define POLLERR 0x0008 /* some poll error occurred */
|
|
#define POLLHUP 0x0010 /* file descriptor was "hung up" */
|
|
#define POLLNVAL 0x0020 /* requested events "invalid" */
|
|
#define POLLRDNORM 0x0040
|
|
#define POLLRDBAND 0x0080
|
|
#define POLLWRNORM 0x0100
|
|
#define POLLWRBAND 0x0200
|
|
|
|
struct pollfd
|
|
{
|
|
int fd; /* which file descriptor to poll */
|
|
short events; /* events we are interested in */
|
|
short revents; /* events found on return */
|
|
};
|
|
|
|
typedef unsigned long nfds_t;
|
|
|
|
extern int poll (struct pollfd *pfd, nfds_t nfd, int timeout);
|
|
|
|
/* Define INFTIM only if doing so conforms to POSIX. */
|
|
#if !defined (_POSIX_C_SOURCE) && !defined (_XOPEN_SOURCE)
|
|
#define INFTIM (-1)
|
|
#endif
|
|
|
|
#endif /* _GL_POLL_H */
|