/* * Copyright (c) 1999-2004 Apple Computer, Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* * Header file for Unified Buffer Cache. * */ #ifndef _SYS_UBC_H_ #define _SYS_UBC_H_ #include <sys/appleapiopts.h> #include <sys/cdefs.h> #include <sys/kernel_types.h> #include <kern/locks.h> #include <mach/memory_object_types.h> /* defns for ubc_sync_range() and ubc_msync */ #define UBC_PUSHDIRTY 0x01 /* clean any dirty pages in the specified range to the backing store */ #define UBC_PUSHALL 0x02 /* push both dirty and precious pages to the backing store */ #define UBC_INVALIDATE 0x04 /* invalidate pages in the specified range... may be used with UBC_PUSHDIRTY/ALL */ #define UBC_SYNC 0x08 /* wait for I/Os generated by UBC_PUSHDIRTY to complete */ __BEGIN_DECLS off_t ubc_blktooff(struct vnode *, daddr64_t); daddr64_t ubc_offtoblk(struct vnode *, off_t); off_t ubc_getsize(struct vnode *); int ubc_setsize(struct vnode *, off_t); struct ucred *ubc_getcred(struct vnode *); int ubc_setcred(struct vnode *, struct proc *); struct thread; int ubc_setthreadcred(struct vnode *, struct proc *, struct thread *); int ubc_sync_range(vnode_t, off_t, off_t, int); errno_t ubc_msync(vnode_t, off_t, off_t, off_t *, int); int ubc_pages_resident(vnode_t); /* cluster IO routines */ int advisory_read(vnode_t, off_t, off_t, int); int cluster_read(vnode_t, struct uio *, off_t, int); int cluster_write(vnode_t, struct uio *, off_t, off_t, off_t, off_t, int); int cluster_pageout(vnode_t, upl_t, vm_offset_t, off_t, int, off_t, int); int cluster_pagein(vnode_t, upl_t, vm_offset_t, off_t, int, off_t, int); int cluster_push(vnode_t, int); int cluster_bp(buf_t); void cluster_zero(upl_t, vm_offset_t, int, buf_t); /* UPL routines */ int ubc_create_upl(vnode_t, off_t, long, upl_t *, upl_page_info_t **, int); int ubc_upl_map(upl_t, upl_offset_t *); int ubc_upl_unmap(upl_t); int ubc_upl_commit(upl_t); int ubc_upl_commit_range(upl_t, upl_offset_t, upl_size_t, int); int ubc_upl_abort(upl_t, int); int ubc_upl_abort_range(upl_t, upl_offset_t, upl_size_t, int); upl_page_info_t *ubc_upl_pageinfo(upl_t); __END_DECLS #endif /* _SYS_UBC_H_ */