uio.h
资源名称:ixp425BSP.rar [点击查看]
上传用户:luoyougen
上传日期:2008-05-12
资源大小:23136k
文件大小:3k
源码类别:
VxWorks
开发平台:
C/C++
- /* uio.h - uio header file */
- /* Copyright 1984-1996 Wind River Systems, Inc. */
- /*
- * 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.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 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.
- *
- * @(#)uio.h 8.5 (Berkeley) 2/22/94
- */
- /*
- modification history
- --------------------
- 01b,13dec99,jkf added #ifndef _ASMLANGUAGE
- 01a,13mar96,vin upgraded to 4.4, integrated with 02h of uio.h
- */
- #ifndef __INCuioh
- #define __INCuioh
- #ifdef __cplusplus
- extern "C" {
- #endif
- #include "sys/types.h"
- #ifndef _ASMLANGUAGE
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 1 /* tell gcc960 not to optimize alignments */
- #endif /* CPU_FAMILY==I960 */
- struct iovec {
- caddr_t iov_base;
- int iov_len;
- };
- 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_USERISPACE /* from user I space */
- };
- 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;
- #ifdef UNIXBSD44 /* does not apply to vxWorks */
- struct proc *uio_procp;
- #endif
- };
- #if ((CPU_FAMILY==I960) && (defined __GNUC__))
- #pragma align 0 /* turn off alignment requirement */
- #endif /* CPU_FAMILY==I960 */
- #define UIO_MAXIOV 1024 /* max 1K of iov's */
- #define UIO_SMALLIOV 8 /* 8 on stack, else malloc */
- #endif /* #ifndef _ASMLANGUAGE */
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INCuioh */