1 /* 2 * Copyright (c) 2007 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Matthew Dillon <dillon@backplane.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $DragonFly: src/sbin/hammer/hammer_util.h,v 1.3 2007/11/20 07:16:27 dillon Exp $ 35 */ 36 37 #include <sys/types.h> 38 #include <sys/diskslice.h> 39 #include <sys/diskmbr.h> 40 #include <sys/stat.h> 41 #include <sys/time.h> 42 #include <vfs/hammer/hammer_alist.h> 43 #include <vfs/hammer/hammer_disk.h> 44 45 #include <stdio.h> 46 #include <stdlib.h> 47 #include <stdarg.h> 48 #include <stddef.h> 49 #include <unistd.h> 50 #include <string.h> 51 #include <errno.h> 52 #include <fcntl.h> 53 #include <uuid.h> 54 #include <assert.h> 55 #include <err.h> 56 57 struct supercl_info; 58 struct cluster_info; 59 struct buffer_info; 60 61 /* 62 * These structures are used by newfs_hammer to track the filesystem 63 * buffers it constructs while building the filesystem. No attempt 64 * is made to try to make this efficient. 65 */ 66 struct volume_info { 67 struct volume_info *next; 68 int vol_no; 69 int64_t vol_alloc; 70 71 const char *name; 72 int fd; 73 off_t size; 74 const char *type; 75 76 struct hammer_alist_live clu_alist; /* cluster allocator */ 77 struct hammer_alist_live buf_alist; /* buffer head only */ 78 struct hammer_volume_ondisk *ondisk; 79 80 struct supercl_info *supercl_base; 81 struct cluster_info *cluster_base; 82 }; 83 84 struct supercl_info { 85 struct supercl_info *next; 86 int32_t scl_no; 87 int64_t scl_offset; 88 89 struct volume_info *volume; 90 91 struct hammer_alist_live clu_alist; 92 struct hammer_alist_live buf_alist; 93 struct hammer_supercl_ondisk *ondisk; 94 }; 95 96 struct cluster_info { 97 struct cluster_info *next; 98 int32_t clu_no; 99 int64_t clu_offset; 100 101 struct supercl_info *supercl; 102 struct volume_info *volume; 103 104 struct hammer_alist_live alist_master; 105 struct hammer_alist_live alist_btree; 106 struct hammer_alist_live alist_record; 107 struct hammer_alist_live alist_mdata; 108 struct hammer_cluster_ondisk *ondisk; 109 110 struct buffer_info *buffer_base; 111 }; 112 113 struct buffer_info { 114 struct buffer_info *next; 115 int32_t buf_no; 116 int64_t buf_offset; 117 118 struct cluster_info *cluster; 119 struct volume_info *volume; 120 121 struct hammer_alist_live alist; 122 hammer_fsbuf_ondisk_t ondisk; 123 }; 124 125 extern struct hammer_alist_config Buf_alist_config; 126 extern struct hammer_alist_config Vol_normal_alist_config; 127 extern struct hammer_alist_config Vol_super_alist_config; 128 extern struct hammer_alist_config Supercl_alist_config; 129 extern struct hammer_alist_config Clu_master_alist_config; 130 extern struct hammer_alist_config Clu_slave_alist_config; 131 extern uuid_t Hammer_FSType; 132 extern uuid_t Hammer_FSId; 133 extern int64_t ClusterSize; 134 extern int UsingSuperClusters; 135 extern int NumVolumes; 136 extern struct volume_info *VolBase; 137 138 uint32_t crc32(const void *buf, size_t size); 139 140 struct volume_info *get_volume(int32_t vol_no); 141 struct supercl_info *get_supercl(struct volume_info *vol, int32_t scl_no); 142 struct cluster_info *get_cluster(struct volume_info *vol, int32_t clu_no); 143 struct buffer_info *get_buffer(struct cluster_info *cl, int32_t buf_no, 144 int64_t buf_type); 145 void *alloc_btree_element(struct cluster_info *cluster, int32_t *offp); 146 void *alloc_data_element(struct cluster_info *cluster, 147 int32_t bytes, int32_t *offp); 148 void *alloc_record_element(struct cluster_info *cluster, int32_t *offp); 149 150 void flush_all_volumes(void); 151 void flush_volume(struct volume_info *vol); 152 void flush_supercl(struct supercl_info *supercl); 153 void flush_cluster(struct cluster_info *cl); 154 void flush_buffer(struct buffer_info *buf); 155 156 void hammer_super_alist_template(struct hammer_alist_config *conf); 157 void hammer_buffer_alist_template(struct hammer_alist_config *conf); 158