diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libspl/include/os/freebsd/sys/Makefile.am | 1 | ||||
| -rw-r--r-- | lib/libspl/include/os/freebsd/sys/uio.h | 98 | ||||
| -rw-r--r-- | lib/libspl/include/os/linux/sys/Makefile.am | 1 | ||||
| -rw-r--r-- | lib/libspl/include/sys/Makefile.am | 1 | ||||
| -rw-r--r-- | lib/libspl/include/sys/uio.h (renamed from lib/libspl/include/os/linux/sys/uio.h) | 46 |
5 files changed, 45 insertions, 102 deletions
diff --git a/lib/libspl/include/os/freebsd/sys/Makefile.am b/lib/libspl/include/os/freebsd/sys/Makefile.am index 896c93871..1f85b208e 100644 --- a/lib/libspl/include/os/freebsd/sys/Makefile.am +++ b/lib/libspl/include/os/freebsd/sys/Makefile.am @@ -7,6 +7,5 @@ libspl_HEADERS = \ $(top_srcdir)/lib/libspl/include/os/freebsd/sys/param.h \ $(top_srcdir)/lib/libspl/include/os/freebsd/sys/stat.h \ $(top_srcdir)/lib/libspl/include/os/freebsd/sys/sysmacros.h \ - $(top_srcdir)/lib/libspl/include/os/freebsd/sys/uio.h \ $(top_srcdir)/lib/libspl/include/os/freebsd/sys/vfs.h \ $(top_srcdir)/lib/libspl/include/os/freebsd/sys/zfs_context_os.h diff --git a/lib/libspl/include/os/freebsd/sys/uio.h b/lib/libspl/include/os/freebsd/sys/uio.h deleted file mode 100644 index d978b6ad0..000000000 --- a/lib/libspl/include/os/freebsd/sys/uio.h +++ /dev/null @@ -1,98 +0,0 @@ -/* - * CDDL HEADER START - * - * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. - * - * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE - * or http://www.opensolaris.org/os/licensing. - * See the License for the specific language governing permissions - * and limitations under the License. - * - * When distributing Covered Code, include this CDDL HEADER in each - * file and include the License file at usr/src/OPENSOLARIS.LICENSE. - * If applicable, add the following below this CDDL HEADER, with the - * fields enclosed by brackets "[]" replaced with your own identifying - * information: Portions Copyright [yyyy] [name of copyright owner] - * - * CDDL HEADER END - */ -/* - * Copyright 2005 Sun Microsystems, Inc. All rights reserved. - * Use is subject to license terms. - */ - -/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ -/* All Rights Reserved */ - -/* - * University Copyright- Copyright (c) 1982, 1986, 1988 - * The Regents of the University of California - * All Rights Reserved - * - * University Acknowledgment- Portions of this document are derived from - * software developed by the University of California, Berkeley, and its - * contributors. - */ - -#ifndef _LIBSPL_SYS_UIO_H -#define _LIBSPL_SYS_UIO_H - -#include_next <sys/uio.h> - -typedef struct iovec iovec_t; -typedef enum uio_seg uio_seg_t; - -typedef struct uio { - struct iovec *uio_iov; /* pointer to array of iovecs */ - int uio_iovcnt; /* number of iovecs */ - offset_t uio_loffset; /* file offset */ - uio_seg_t uio_segflg; /* address space (kernel or user) */ - uint16_t uio_fmode; /* file mode flags */ - uint16_t uio_extflg; /* extended flags */ - offset_t uio_limit; /* u-limit (maximum byte offset) */ - ssize_t uio_resid; /* residual count */ -} uio_t; - -typedef enum xuio_type { - UIOTYPE_ASYNCIO, - UIOTYPE_ZEROCOPY, -} xuio_type_t; - -#define UIOA_IOV_MAX 16 - -typedef struct uioa_page_s { /* locked uio_iov state */ - int uioa_pfncnt; /* count of pfn_t(s) in *uioa_ppp */ - void **uioa_ppp; /* page_t or pfn_t array */ - caddr_t uioa_base; /* address base */ - size_t uioa_len; /* span length */ -} uioa_page_t; - -typedef struct xuio { - uio_t xu_uio; /* embedded UIO structure */ - - /* Extended uio fields */ - enum xuio_type xu_type; /* uio type */ - union { - struct { - uint32_t xu_a_state; /* state of async i/o */ - ssize_t xu_a_mbytes; /* bytes moved */ - uioa_page_t *xu_a_lcur; /* uioa_locked[] pointer */ - void **xu_a_lppp; /* lcur->uioa_pppp[] pointer */ - void *xu_a_hwst[4]; /* opaque hardware state */ - uioa_page_t xu_a_locked[UIOA_IOV_MAX]; - } xu_aio; - - struct { - int xu_zc_rw; /* read or write buffer */ - void *xu_zc_priv; /* fs specific */ - } xu_zc; - } xu_ext; -} xuio_t; - -#define XUIO_XUZC_PRIV(xuio) xuio->xu_ext.xu_zc.xu_zc_priv -#define XUIO_XUZC_RW(xuio) xuio->xu_ext.xu_zc.xu_zc_rw - -#endif /* _SYS_UIO_H */ diff --git a/lib/libspl/include/os/linux/sys/Makefile.am b/lib/libspl/include/os/linux/sys/Makefile.am index 49e9f730e..b7019fc37 100644 --- a/lib/libspl/include/os/linux/sys/Makefile.am +++ b/lib/libspl/include/os/linux/sys/Makefile.am @@ -7,5 +7,4 @@ libspl_HEADERS = \ $(top_srcdir)/lib/libspl/include/os/linux/sys/param.h \ $(top_srcdir)/lib/libspl/include/os/linux/sys/stat.h \ $(top_srcdir)/lib/libspl/include/os/linux/sys/sysmacros.h \ - $(top_srcdir)/lib/libspl/include/os/linux/sys/uio.h \ $(top_srcdir)/lib/libspl/include/os/linux/sys/zfs_context_os.h diff --git a/lib/libspl/include/sys/Makefile.am b/lib/libspl/include/sys/Makefile.am index 8f9c2fa99..5125b8ac3 100644 --- a/lib/libspl/include/sys/Makefile.am +++ b/lib/libspl/include/sys/Makefile.am @@ -39,6 +39,7 @@ libspl_HEADERS = \ $(top_srcdir)/lib/libspl/include/sys/types32.h \ $(top_srcdir)/lib/libspl/include/sys/types.h \ $(top_srcdir)/lib/libspl/include/sys/tzfile.h \ + $(top_srcdir)/lib/libspl/include/sys/uio.h \ $(top_srcdir)/lib/libspl/include/sys/va_list.h \ $(top_srcdir)/lib/libspl/include/sys/varargs.h \ $(top_srcdir)/lib/libspl/include/sys/vnode.h \ diff --git a/lib/libspl/include/os/linux/sys/uio.h b/lib/libspl/include/sys/uio.h index 0b85af66d..6d892dd3e 100644 --- a/lib/libspl/include/os/linux/sys/uio.h +++ b/lib/libspl/include/sys/uio.h @@ -43,9 +43,14 @@ #include <sys/types.h> #include_next <sys/uio.h> +#ifdef __APPLE__ +#include <sys/_types/_iovec_t.h> +#endif + #include <stdint.h> typedef struct iovec iovec_t; +#if defined(__linux__) || defined(__APPLE__) typedef enum uio_rw { UIO_READ = 0, UIO_WRITE = 1, @@ -57,14 +62,18 @@ typedef enum uio_seg { UIO_USERISPACE = 2, } uio_seg_t; +#elif defined(__FreeBSD__) +typedef enum uio_seg uio_seg_t; +#endif + typedef struct uio { struct iovec *uio_iov; /* pointer to array of iovecs */ int uio_iovcnt; /* number of iovecs */ - loff_t uio_loffset; /* file offset */ + offset_t uio_loffset; /* file offset */ uio_seg_t uio_segflg; /* address space (kernel or user) */ uint16_t uio_fmode; /* file mode flags */ uint16_t uio_extflg; /* extended flags */ - loff_t uio_limit; /* u-limit (maximum byte offset) */ + offset_t uio_limit; /* u-limit (maximum byte offset) */ ssize_t uio_resid; /* residual count */ } uio_t; @@ -107,4 +116,37 @@ typedef struct xuio { #define XUIO_XUZC_PRIV(xuio) xuio->xu_ext.xu_zc.xu_zc_priv #define XUIO_XUZC_RW(xuio) xuio->xu_ext.xu_zc.xu_zc_rw +#define uio_segflg(uio) (uio)->uio_segflg +#define uio_offset(uio) (uio)->uio_loffset +#define uio_resid(uio) (uio)->uio_resid +#define uio_iovcnt(uio) (uio)->uio_iovcnt +#define uio_iovlen(uio, idx) (uio)->uio_iov[(idx)].iov_len +#define uio_iovbase(uio, idx) (uio)->uio_iov[(idx)].iov_base + +static inline void +uio_iov_at_index(uio_t *uio, uint_t idx, void **base, uint64_t *len) +{ + *base = uio_iovbase(uio, idx); + *len = uio_iovlen(uio, idx); +} + +static inline void +uio_advance(uio_t *uio, size_t size) +{ + uio->uio_resid -= size; + uio->uio_loffset += size; +} + +static inline offset_t +uio_index_at_offset(uio_t *uio, offset_t off, uint_t *vec_idx) +{ + *vec_idx = 0; + while (*vec_idx < uio_iovcnt(uio) && off >= uio_iovlen(uio, *vec_idx)) { + off -= uio_iovlen(uio, *vec_idx); + (*vec_idx)++; + } + + return (off); +} + #endif /* _SYS_UIO_H */ |