From e2abcdca396661cbe0ae2ddb13d5c2b85682c13a Mon Sep 17 00:00:00 2001
From: Cem Keylan <cem@ckyln.com>
Date: Fri, 16 Oct 2020 17:41:25 +0300
Subject: initial commit

---
 sys/sys/select.h | 137 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 137 insertions(+)
 create mode 100644 sys/sys/select.h

(limited to 'sys/sys/select.h')

diff --git a/sys/sys/select.h b/sys/sys/select.h
new file mode 100644
index 0000000..3c7aa20
--- /dev/null
+++ b/sys/sys/select.h
@@ -0,0 +1,137 @@
+/*	$OpenBSD: select.h,v 1.17 2016/09/12 19:41:20 guenther Exp $	*/
+
+/*-
+ * Copyright (c) 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * 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.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
+ *
+ *	@(#)select.h	8.2 (Berkeley) 1/4/94
+ */
+
+#ifndef _SYS_SELECT_H_
+#define	_SYS_SELECT_H_
+
+#include <sys/types.h>
+
+#ifndef _TIMEVAL_DECLARED
+#define _TIMEVAL_DECLARED
+struct timeval {
+	time_t		tv_sec;		/* seconds */
+	suseconds_t	tv_usec;	/* and microseconds */
+};
+#endif
+
+#ifndef _TIMESPEC_DECLARED
+#define _TIMESPEC_DECLARED
+struct timespec {
+	time_t	tv_sec;		/* seconds */
+	long	tv_nsec;	/* and nanoseconds */
+};
+#endif
+
+/*
+ * Select uses bit masks of file descriptors in longs.  These macros
+ * manipulate such bit fields (the filesystem macros use chars).
+ * FD_SETSIZE may be defined by the user, but the default here should
+ * be enough for most uses.
+ */
+#ifndef	FD_SETSIZE
+#define	FD_SETSIZE	1024
+#endif
+
+/*
+ * We don't want to pollute the namespace with select(2) internals.
+ * Non-underscore versions are exposed later #if __BSD_VISIBLE
+ */
+#define	__NBBY	8				/* number of bits in a byte */
+typedef uint32_t __fd_mask;
+#define __NFDBITS ((unsigned)(sizeof(__fd_mask) * __NBBY)) /* bits per mask */
+#define	__howmany(x, y)	(((x) + ((y) - 1)) / (y))
+
+typedef	struct fd_set {
+	__fd_mask fds_bits[__howmany(FD_SETSIZE, __NFDBITS)];
+} fd_set;
+
+static __inline void
+__fd_set(int fd, fd_set *p)
+{
+	p->fds_bits[fd / __NFDBITS] |= (1U << (fd % __NFDBITS));
+}
+#define FD_SET(n, p)	__fd_set((n), (p))
+
+static __inline void
+__fd_clr(int fd, fd_set *p)
+{
+	p->fds_bits[fd / __NFDBITS] &= ~(1U << (fd % __NFDBITS));
+}
+#define FD_CLR(n, p)	__fd_clr((n), (p))
+
+static __inline int
+__fd_isset(int fd, const fd_set *p)
+{
+	return (p->fds_bits[fd / __NFDBITS] & (1U << (fd % __NFDBITS)));
+}
+#define FD_ISSET(n, p)	__fd_isset((n), (p))
+
+#if __BSD_VISIBLE
+#define	FD_COPY(f, t)	(void)(*(t) = *(f))
+#endif
+#define	FD_ZERO(p) do {					\
+	fd_set *_p = (p);				\
+	__size_t _n = __howmany(FD_SETSIZE, __NFDBITS);	\
+							\
+	while (_n > 0)					\
+		_p->fds_bits[--_n] = 0;			\
+} while (0)
+
+#if __BSD_VISIBLE
+#define	NBBY	__NBBY
+#define fd_mask	__fd_mask
+#define NFDBITS	__NFDBITS
+#ifndef howmany
+#define howmany(x, y)	__howmany(x, y)
+#endif
+#endif /* __BSD_VISIBLE */
+
+#ifndef _KERNEL
+#ifndef _SIGSET_T_DEFINED_
+#define _SIGSET_T_DEFINED_
+typedef unsigned int sigset_t;
+#endif
+
+#ifndef _SELECT_DEFINED_
+#define _SELECT_DEFINED_
+__BEGIN_DECLS
+int	select(int, fd_set * __restrict, fd_set * __restrict,
+	    fd_set * __restrict, struct timeval * __restrict);
+int	pselect(int, fd_set * __restrict, fd_set * __restrict,
+	    fd_set * __restrict, const struct timespec * __restrict,
+	    const sigset_t * __restrict);
+__END_DECLS
+#endif
+#endif /* !_KERNEL */
+
+#endif /* !_SYS_SELECT_H_ */
-- 
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