Import poll() from NetBSD's libnbcompat

include/sys/Makefile

@@ -9,6 +9,6 @@ INCS=	asynchio.h dir.h file.h ioc_cmos.h ioc_disk.h \
 	select.h sem.h shm.h sigcontext.h signal.h socket.h \
 	soundcard.h statfs.h statvfs.h stat.h svrctl.h timeb.h \
 	time.h times.h types.h ucontext.h ucred.h uio.h un.h \
-	utsname.h video.h vm.h wait.h cdefs.h null.h
+	utsname.h video.h vm.h wait.h cdefs.h null.h poll.h
 
 .include <bsd.kinc.mk>

include/sys/poll.h

@@ -0,0 +1,67 @@
+/*	$NetBSD: poll.h,v 1.3 2008/04/29 05:46:08 martin Exp $	*/
+
+/*-
+ * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _NBCOMPAT_POLL_H_
+#define	_NBCOMPAT_POLL_H_
+
+#include <sys/cdefs.h>
+
+typedef unsigned int	nfds_t;
+
+struct pollfd {
+	int	fd;		/* file descriptor */
+	short	events;		/* events to look for */
+	short	revents;	/* events returned */
+};
+
+/*
+ * Testable events (may be specified in events field).
+ */
+#define	POLLIN		0x0001
+#define	POLLPRI		0x0002
+#define	POLLOUT		0x0004
+#define	POLLRDNORM	0x0040
+#define	POLLWRNORM	POLLOUT
+#define	POLLRDBAND	0x0080
+#define	POLLWRBAND	0x0100
+
+/*
+ * Non-testable events (may not be specified in events field).
+ */
+#define	POLLERR		0x0008
+#define	POLLHUP		0x0010
+#define	POLLNVAL	0x0020
+
+__BEGIN_DECLS
+int	poll (struct pollfd *, nfds_t, int);
+__END_DECLS
+
+#endif /* !_NBCOMPAT_POLL_H_ */