fifo.h revision 1.28
1 1.28 riastrad /* $NetBSD: fifo.h,v 1.28 2022/10/26 23:40:20 riastradh Exp $ */ 2 1.8 cgd 3 1.1 cgd /* 4 1.7 mycroft * Copyright (c) 1991, 1993 5 1.7 mycroft * The Regents of the University of California. All rights reserved. 6 1.1 cgd * 7 1.1 cgd * Redistribution and use in source and binary forms, with or without 8 1.1 cgd * modification, are permitted provided that the following conditions 9 1.1 cgd * are met: 10 1.1 cgd * 1. Redistributions of source code must retain the above copyright 11 1.1 cgd * notice, this list of conditions and the following disclaimer. 12 1.1 cgd * 2. Redistributions in binary form must reproduce the above copyright 13 1.1 cgd * notice, this list of conditions and the following disclaimer in the 14 1.1 cgd * documentation and/or other materials provided with the distribution. 15 1.20 agc * 3. Neither the name of the University nor the names of its contributors 16 1.1 cgd * may be used to endorse or promote products derived from this software 17 1.1 cgd * without specific prior written permission. 18 1.1 cgd * 19 1.1 cgd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 1.1 cgd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 1.1 cgd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 1.1 cgd * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 1.1 cgd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 1.1 cgd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 1.1 cgd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 1.1 cgd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 1.1 cgd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 1.1 cgd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 1.1 cgd * SUCH DAMAGE. 30 1.1 cgd * 31 1.13 fvdl * @(#)fifo.h 8.6 (Berkeley) 5/21/95 32 1.1 cgd */ 33 1.14 sommerfe 34 1.28 riastrad #ifndef _MISCFS_FIFOFS_FIFO_H_ 35 1.28 riastrad #define _MISCFS_FIFOFS_FIFO_H_ 36 1.28 riastrad 37 1.28 riastrad #include <sys/vnode.h> 38 1.28 riastrad 39 1.28 riastrad #include <miscfs/genfs/genfs.h> 40 1.28 riastrad 41 1.28 riastrad extern const struct vnodeopv_desc fifo_vnodeop_opv_desc; 42 1.28 riastrad 43 1.22 xtraeme extern int (**fifo_vnodeop_p)(void *); 44 1.27 dholland 45 1.27 dholland /* 46 1.27 dholland * This macro provides an initializer list for the fs-independent part 47 1.27 dholland * of a filesystem's fifo vnode ops descriptor table. We still need 48 1.27 dholland * such a table in every filesystem, but we can at least avoid the 49 1.27 dholland * cutpaste. 50 1.27 dholland * 51 1.27 dholland * This contains these ops: 52 1.27 dholland * parsepath lookup 53 1.27 dholland * create whiteout mknod open fallocate fdiscard ioctl poll kqfilter 54 1.27 dholland * revoke mmap seek remove link rename mkdir rmdir symlink readdir 55 1.27 dholland * readlink abortop bmap pathconf advlock getpages putpages 56 1.27 dholland * 57 1.27 dholland * The filesystem should provide these ops that need to be its own: 58 1.27 dholland * access and accessx 59 1.27 dholland * getattr 60 1.27 dholland * setattr 61 1.27 dholland * fcntl 62 1.27 dholland * inactive 63 1.27 dholland * reclaim 64 1.27 dholland * lock 65 1.27 dholland * unlock 66 1.27 dholland * strategy 67 1.27 dholland * print (should probably also call fifo_print) 68 1.27 dholland * islocked 69 1.27 dholland * bwrite (normally vn_bwrite) 70 1.27 dholland * openextattr 71 1.27 dholland * closeextattr 72 1.27 dholland * getextattr 73 1.27 dholland * setextattr 74 1.27 dholland * listextattr 75 1.27 dholland * deleteextattr 76 1.27 dholland * getacl 77 1.27 dholland * setacl 78 1.27 dholland * aclcheck 79 1.27 dholland * 80 1.27 dholland * The filesystem should also provide these ops that some filesystems 81 1.27 dholland * do their own things with: 82 1.27 dholland * close 83 1.27 dholland * read 84 1.27 dholland * write 85 1.27 dholland * fsync 86 1.27 dholland * In most cases "their own things" means adjust timestamps and call 87 1.27 dholland * fifo_foo (currently via vn_fifo_bypass). For fsync it varies. 88 1.27 dholland * 89 1.27 dholland * Note that because the op descriptor tables are unordered it does not 90 1.28 riastrad * matter where in the table this macro goes (except I think default 91 1.27 dholland * still needs to be first...) 92 1.27 dholland * 93 1.27 dholland * XXX currently all the ops are vn_fifo_bypass, which does an 94 1.27 dholland * indirect call via the fifofs ops table (externed above), which 95 1.27 dholland * someone decided was preferable to exposing the function 96 1.27 dholland * definitions. This includes (for now at least) the ones that are 97 1.27 dholland * sent to genfs by that table. This should probably be changed, but 98 1.27 dholland * not just yet. 99 1.27 dholland */ 100 1.27 dholland #define GENFS_FIFOOP_ENTRIES \ 101 1.27 dholland { &vop_parsepath_desc, genfs_badop }, /* parsepath */ \ 102 1.27 dholland { &vop_lookup_desc, vn_fifo_bypass }, /* lookup */ \ 103 1.27 dholland { &vop_create_desc, vn_fifo_bypass }, /* create */ \ 104 1.27 dholland { &vop_whiteout_desc, vn_fifo_bypass }, /* whiteout */ \ 105 1.27 dholland { &vop_mknod_desc, vn_fifo_bypass }, /* mknod */ \ 106 1.27 dholland { &vop_open_desc, vn_fifo_bypass }, /* open */ \ 107 1.27 dholland { &vop_fallocate_desc, vn_fifo_bypass }, /* fallocate */ \ 108 1.27 dholland { &vop_fdiscard_desc, vn_fifo_bypass }, /* fdiscard */ \ 109 1.27 dholland { &vop_ioctl_desc, vn_fifo_bypass }, /* ioctl */ \ 110 1.27 dholland { &vop_poll_desc, vn_fifo_bypass }, /* poll */ \ 111 1.27 dholland { &vop_kqfilter_desc, vn_fifo_bypass }, /* kqfilter */ \ 112 1.27 dholland { &vop_revoke_desc, vn_fifo_bypass }, /* revoke */ \ 113 1.27 dholland { &vop_mmap_desc, vn_fifo_bypass }, /* mmap */ \ 114 1.27 dholland { &vop_seek_desc, vn_fifo_bypass }, /* seek */ \ 115 1.27 dholland { &vop_remove_desc, vn_fifo_bypass }, /* remove */ \ 116 1.27 dholland { &vop_link_desc, vn_fifo_bypass }, /* link */ \ 117 1.27 dholland { &vop_rename_desc, vn_fifo_bypass }, /* rename */ \ 118 1.27 dholland { &vop_mkdir_desc, vn_fifo_bypass }, /* mkdir */ \ 119 1.27 dholland { &vop_rmdir_desc, vn_fifo_bypass }, /* rmdir */ \ 120 1.27 dholland { &vop_symlink_desc, vn_fifo_bypass }, /* symlink */ \ 121 1.27 dholland { &vop_readdir_desc, vn_fifo_bypass }, /* readdir */ \ 122 1.27 dholland { &vop_readlink_desc, vn_fifo_bypass }, /* readlink */ \ 123 1.27 dholland { &vop_abortop_desc, vn_fifo_bypass }, /* abortop */ \ 124 1.27 dholland { &vop_bmap_desc, vn_fifo_bypass }, /* bmap */ \ 125 1.27 dholland { &vop_pathconf_desc, vn_fifo_bypass }, /* pathconf */ \ 126 1.27 dholland { &vop_advlock_desc, vn_fifo_bypass }, /* advlock */ \ 127 1.27 dholland { &vop_getpages_desc, genfs_badop }, /* getpages */ \ 128 1.27 dholland { &vop_putpages_desc, vn_fifo_bypass } /* putpages */ 129 1.28 riastrad 130 1.28 riastrad #endif /* _MISCFS_FIFOFS_FIFO_H_ */ 131
Indexes created Thu Sep 25 16:09:42 GMT 2025