genericopenlibs/openenvcore/include/sys/uio.h
changeset 0 e4d67989cc36
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/openenvcore/include/sys/uio.h	Tue Feb 02 02:01:42 2010 +0200
@@ -0,0 +1,100 @@
+/*-
+ * Copyright (c) 1982, 1986, 1993, 1994
+ *	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.
+ * 4. 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.
+ * © * Portions Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
+ *	@(#)uio.h	8.5 (Berkeley) 2/22/94
+ * $FreeBSD: src/sys/sys/uio.h,v 1.39 2005/07/07 18:17:55 jhb Exp $
+ */
+
+#ifndef _SYS_UIO_H_
+#define	_SYS_UIO_H_
+
+#include <sys/cdefs.h>
+#include <sys/_types.h>
+#include <sys/_iovec.h>
+
+#ifndef _SSIZE_T_DECLARED
+typedef	__ssize_t	ssize_t;
+#define	_SSIZE_T_DECLARED
+#endif
+
+#ifndef _OFF_T_DECLARED
+typedef	__off_t	off_t;
+#define	_OFF_T_DECLARED
+#endif
+
+#if __BSD_VISIBLE
+enum	uio_rw { UIO_READ, UIO_WRITE };
+
+/* Segment flag values. */
+enum uio_seg {
+	UIO_USERSPACE,		/* from user data space */
+	UIO_SYSSPACE,		/* from system space */
+	UIO_NOCOPY		/* don't copy, already in object */
+};
+#endif
+
+#ifdef _KERNEL
+
+struct uio {
+	struct	iovec *uio_iov;
+	int	uio_iovcnt;
+	off_t	uio_offset;
+	int	uio_resid;
+	enum	uio_seg uio_segflg;
+	enum	uio_rw uio_rw;
+	struct	thread *uio_td;
+};
+
+/*
+ * Limits
+ *
+ * N.B.: UIO_MAXIOV must be no less than IOV_MAX from <sys/syslimits.h>
+ * which in turn must be no less than _XOPEN_IOV_MAX from <limits.h>.  If
+ * we ever make this tunable (probably pointless), then IOV_MAX should be
+ * removed from <sys/syslimits.h> and applications would be expected to use
+ * sysconf(3) to find out the correct value, or else assume the worst
+ * (_XOPEN_IOV_MAX).  Perhaps UIO_MAXIOV should be simply defined as
+ * IOV_MAX.
+ */
+#define UIO_MAXIOV	1024		/* max 1K of iov's */
+
+struct vm_object;
+struct vm_page;
+
+#else /* !_KERNEL */
+
+__BEGIN_DECLS
+IMPORT_C
+ssize_t	readv(int, const struct iovec *, int);
+IMPORT_C
+ssize_t	writev(int, const struct iovec *, int);
+__END_DECLS
+
+#endif /* _KERNEL */
+
+#endif /* !_SYS_UIO_H_ */