1 /* ----> DO NOT REMOVE THE FOLLOWING NOTICE <---- 2 * 3 * Copyright (c) 2014-2015 Datalight, Inc. 4 * All Rights Reserved Worldwide. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; use version 2 of the License. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but "AS-IS," WITHOUT ANY WARRANTY; without even the implied warranty 12 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program; if not, write to the Free Software Foundation, Inc., 17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 18 */ 19 20 /* Businesses and individuals that for commercial or other reasons cannot 21 * comply with the terms of the GPLv2 license may obtain a commercial license 22 * before incorporating Reliance Edge into proprietary software for 23 * distribution in any form. Visit http://www.datalight.com/reliance-edge for 24 * more information. 25 */ 26 27 /** @file 28 */ 29 #ifndef REDCOREMACS_H 30 #define REDCOREMACS_H 31 32 33 #define BLOCK_NUM_MASTER ( 0UL ) /* Block number of the master block. */ 34 #define BLOCK_NUM_FIRST_METAROOT ( 1UL ) /* Block number of the first metaroot. */ 35 36 #define BLOCK_SPARSE ( 0U ) 37 38 #define DINDIR_POINTERS ( ( INODE_ENTRIES - REDCONF_DIRECT_POINTERS ) - REDCONF_INDIRECT_POINTERS ) 39 #define DINDIR_DATA_BLOCKS ( INDIR_ENTRIES * INDIR_ENTRIES ) 40 41 #define INODE_INDIR_BLOCKS ( REDCONF_INDIRECT_POINTERS * INDIR_ENTRIES ) 42 #define INODE_DINDIR_BLOCKS ( DINDIR_POINTERS * DINDIR_DATA_BLOCKS ) 43 #define INODE_DATA_BLOCKS ( REDCONF_DIRECT_POINTERS + INODE_INDIR_BLOCKS + INODE_DINDIR_BLOCKS ) 44 #define INODE_SIZE_MAX ( UINT64_SUFFIX( 1 ) * REDCONF_BLOCK_SIZE * INODE_DATA_BLOCKS ) 45 46 47 /* First inode number that can be allocated. 48 */ 49 #if REDCONF_API_POSIX == 1 50 #define INODE_FIRST_FREE ( INODE_FIRST_VALID + 1U ) 51 #else 52 #define INODE_FIRST_FREE ( INODE_FIRST_VALID ) 53 #endif 54 55 /** @brief Determine if an inode number is valid. 56 */ 57 #define INODE_IS_VALID( INODENUM ) ( ( ( INODENUM ) >= INODE_FIRST_VALID ) && ( ( INODENUM ) < ( INODE_FIRST_VALID + gpRedVolConf->ulInodeCount ) ) ) 58 59 60 /* The number of blocks reserved to allow a truncate or delete operation to 61 * complete when the disk is otherwise full. 62 * 63 * The more expensive of the two operations is delete, which has to actually 64 * write to a file data block to remove the directory entry. 65 */ 66 #if REDCONF_READ_ONLY == 1 67 #define RESERVED_BLOCKS 0U 68 #elif ( REDCONF_API_POSIX == 1 ) && ( ( REDCONF_API_POSIX_UNLINK == 1 ) || ( REDCONF_API_POSIX_RMDIR == 1 ) ) 69 #if DINDIR_POINTERS > 0U 70 #define RESERVED_BLOCKS 3U 71 #elif REDCONF_INDIRECT_POINTERS > 0U 72 #define RESERVED_BLOCKS 2U 73 #else 74 #define RESERVED_BLOCKS 1U 75 #endif 76 #elif ( ( REDCONF_API_POSIX == 1 ) && ( REDCONF_API_POSIX_FTRUNCATE == 1 ) ) || ( ( REDCONF_API_FSE == 1 ) && ( REDCONF_API_FSE_TRUNCATE == 1 ) ) 77 #if DINDIR_POINTERS > 0U 78 #define RESERVED_BLOCKS 2U 79 #elif REDCONF_INDIRECT_POINTERS > 0U 80 #define RESERVED_BLOCKS 1U 81 #else 82 #define RESERVED_BLOCKS 0U 83 #endif 84 #else /* if REDCONF_READ_ONLY == 1 */ 85 #define RESERVED_BLOCKS 0U 86 #endif /* if REDCONF_READ_ONLY == 1 */ 87 88 89 #define CRITICAL_ASSERT( EXP ) ( ( EXP ) ? ( void ) 0 : CRITICAL_ERROR() ) 90 #define CRITICAL_ERROR() RedVolCriticalError( __FILE__, __LINE__ ) 91 92 93 #endif /* ifndef REDCOREMACS_H */ 94