CGNS CFD计算共享库工具

/* created by combine 2.0 */ /* file ADFI_AAA_var.c */ /*** File: ADF_internals.c ---------------------------------------------------------------------- BOEING ---------------------------------------------------------------------- Project: CGNS Author: Tom Dickens 234-1024 tpd6908@yak.ca.boeing.com Date: 3/2/1995 Purpose: Provide the underlying support for the ADF-Core. ---------------------------------------------------------------------- ---------------------------------------------------------------------- Notes: Integer numbers are stored on disk as ASCII-hex numbers. 2 bytes gives a number from 0 to 255, 4 bytes 0 to 65,535, 8 bytes 0 to 4,294,967,295, and 12 bytes from 0 to 281,474,976,710,655. Pointers are 12 bytes. 8 bytes pointing to a 4096-byte chunk on disk, and 4 bytes is an offset into that chunk. This gives a maximum file size of 17,592,186,048,512 bytes (17.5 Tera bytes). ---------------------------------------------------------------------- The tables below detail the format of the information which makes up the ADF file. There are 7 different, unique types of data "chunks" used. Three of these are of fixed length, and the other four are variable in length. With the exception of numeric data (user's data), all information in an ADF file is written in ASCII. Uniquely-defined boundary-tags are used to surround all "chunks" of information. These tags are checked to confirm "chunk" type and also to ensure data integrity. ---------------------------------------------------------------------- 186 Physical disk-First block bytes start end description range / format 32 0 31 "what" description "@(#)ADF Database Version AXXxxx>" 4 32 35 "AdF0" boundary tag Tag 28 36 63 Creation date/time "Wed Apr 19 09:33:25 1995 " 4 64 67 "AdF1" boundary tag Tag 28 68 95 Modification date/time "Wed Apr 19 09:33:29 1995 " 4 96 99 "AdF2" boundary tag Tag 1 100 100 Numeric format ['B', 'L', 'C', 'N'] 1 101 101 Duplicate of numeric format ['B', 'L', 'C', 'N'] 4 102 105 "AdF3" boundary tag Tag 2 106 107 sizeof( char ) 0 to 255 2 108 109 sizeof( short ) 0 to 255 2 110 111 sizeof( int ) 0 to 255 2 112 113 sizeof( long ) 0 to 255 2 114 115 sizeof( float ) 0 to 255 2 116 117 sizeof( double ) 0 to 255 2 118 119 sizeof( char * ) 0 to 255 2 120 121 sizeof( short * ) 0 to 255 2 122 123 sizeof( int *) 0 to 255 2 124 125 sizeof( long * ) 0 to 255 2 126 127 sizeof( float *) 0 to 255 2 128 129 sizeof( double *) 0 to 255 4 130 133 "AdF4" boundary tag Tag 12 134 145 Root-node header pointer Disk chunk, chunk offset. 12 146 157 End-of-File pointer Disk chunk, chunk offset. 12 158 169 Free-Chunk table pointer Disk chunk, chunk offset. 12 170 181 Extra pointer Disk chunk, chunk offset. 4 182 185 "AdF5" boundary tag Tag 80 Free-Chunk table bytes start end description range / format 4 0 3 "fCbt" boundary tag Tag 12 4 15 First small block pointer Disk chunk, chunk offset. 12 16 27 Last small block pointer Disk chunk, chunk offset. 12 28 39 First medium block pointer Disk chunk, chunk offset. 12 40 51 Last medium block pointer Disk chunk, chunk offset. 12 52 63 First large block pointer Disk chunk, chunk offset. 12 64 75 Last large block pointer Disk chunk, chunk offset. 4 76 79 "fcte" boundarg tag Tag Variable: min 32 Free Chunk bytes start end description range / format 4 0 3 "FreE" boundary tag Tag 12 4 15 Pointer to End-of-Chunk-Tag 12 16 27 Pointer to Next-Chunk in list 0 28 - more free space 4 28 31 "EndC" boundarg tag Tag Note: There can occur other free space "gas" in the file which are smaller than the 32-bytes needed to have tags and pointers. The convention in these cases is to just fill the entire free space with the letter z, lower-case. 246 Node header bytes start end description range / format 4 0 3 "NoDe" boundary tag Tag 32 4 35 Name Text: Blank filled 32 36 67 Label Text: Blank filled 8 68 75 Number of sub-nodes 0 to 4,294,967,295 8 76 83 Entries for sub-nodes 0 to 4,294,967,295 12 84 95 Pointer to sub-node table Disk chunk, chunk offset. 32 96 127 Data-type Text: Blank filled 2 128 129 Number of dimensions 0 to 12 8 130 137 Dimension value 0 0 to 4,294,967,295 8 138 145 Dimension value 1 0 to 4,294,967,295 8 146 153 Dimension value 2 0 to 4,294,967,295 8 154 161 Dimension value 3 0 to 4,294,967,295 8 162 169 Dimension value 4 0 to 4,294,967,295 8 170 177 Dimension value 5 0 to 4,294,967,295 8 178 185 Dimension value 6 0 to 4,294,967,295 8 186 193 Dimension value 7 0 to 4,294,967,295 8 194 201 Dimension value 8 0 to 4,294,967,295 8 202 209 Dimension value 9 0 to 4,294,967,295 8 210 217 Dimension value 10 0 to 4,294,967,295 8 218 225 Dimension value 11 0 to 4,294,967,295 4 226 229 Number of data chunks 0 to 65,535 12 230 241 Pointer to data chunk (or table) Disk chunk, chunk offset. 4 242 245 "TaiL" boundary tag Tag Variable: min 64 Sub-node table bytes start end description range / format 4 0 3 "SNTb" boundary tag Tag 12 4 15 Pointer to End-of-Table-Tag 32 16 47 Child's name Text: Blank filled 12 48 59 Pointer to child Disk chunk, chunk offset. 32 - - Child's name Text: Blank filled 12 - - Pointer to child Disk chunk, chunk offset. 32 - - Child's name Text: Blank filled 12 - - Pointer to child Disk chunk, chunk offset. 32 - - Child's name Text: Blank filled 12 - - Pointer to child Disk chunk, chunk offset. 32 - - Child's name Text: Blank filled 12 - - Pointer to child Disk chunk, chunk offset. 32 - - Child's name Text: Blank filled 12 - - Pointer to child Disk chunk, chunk offset. 4 60 63 "snTE" boundary tag Tag Variable: min 44 Data-chunk table bytes start end description range / format 4 0 3 "DCtb" boundary tag Tag 12 4 15 Pointer to End-of-Table-Tag 12 16 27 Pointer to data start Disk chunk, chunk offset. 12 28 39 Pointer to data end Disk chunk, chunk offset. 12 - - Pointer to data start Disk chunk, chunk offset. 12 - - Pointer to data end Disk chunk, chunk offset. 12 - - Pointer to data start Disk chunk, chunk offset. 12 - - Pointer to data end Disk chunk, chunk offset. 12 - - Pointer to data start Disk chunk, chunk offset. 12 - - Pointer to data end Disk chunk, chunk offset. 4 40 43 "dcTE" boundarg tag Tag Variable: min 32 Data-chunks (Minimum is 32 bytes, which cooresponds to the size required for a free-chunk) bytes start end description range / format 4 0 3 "DaTa" boundary tag Tag 12 4 15 Pointer to End-of-Data-Tag 16 16 27 The data 4 28 31 "dEnD" boundarg tag Tag **/ /*****************************************************************