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annotate src/aci2/aci/db_int.h @ 460:4d4f0bba9469

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doc/D-Sample written
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 19 Mar 2018 18:45:16 +0000
parents 93999a60b835
children
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project : PHB
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4 | Modul : DBM
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2005 Texas Instruments Berlin, AG
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Berlin, AG
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Berlin, AG.
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16 +-----------------------------------------------------------------------------
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17 | Purpose : Internal declarations for DBM module
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18 +-----------------------------------------------------------------------------
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19 */
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20 #ifndef DB_INT_H
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21 #define DB_INT_H
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23 #include "db.h"
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25 /* This macro allows us to close the file before
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26 returning from function */
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27 #define FFS_OPEN_PROBLEM_PATCH
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29 /* If this macro is activated, we close earlier activated file
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30 before opening next file */
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31 #define FFS_CLOSE_BEFORE_OPEN
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33 /* Mutually exclusive macros */
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34 #ifdef FFS_CLOSE_BEFORE_OPEN
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35 #undef FFS_OPEN_PROBLEM_PATCH
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36 #endif
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38 #ifdef FFS_CLOSE_BEFORE_OPEN
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40 #define MAX_OPEN_READ_PER_DB 2
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41 #define MAX_OPEN_WRITE_PER_DB 1
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43 #endif
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45 #ifdef _SIMULATION_
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46 #include "ffs_pc_api.h"
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47 #else
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48 #include "ffs/ffs.h"
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49 #endif
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51 #include "vsi.h"
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52 #include "aci_mem.h"
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54 #define RECORD_BITMAP_SIZE 32 /* Based on MAX_NUM_RECORDS
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55 RECORD_BITMAP_SIZE = MAX_NUM_RECORDS/8*/
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56 #define MAX_LEN_DIRECTORY 16 /* Assumed to be max 16 characters */
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59 /*
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60 DBM state
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61 */
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62 typedef enum
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63 {
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64
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65 DBM_NOT_INITIALISED = 0,
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66 DBM_INITIALISED
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67
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68 } T_DBM_STATE;
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69
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70 /*
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71 Database state
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72 */
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73 typedef enum
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74 {
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75
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76 CLOSED = 0,
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77 OPEN,
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78 IN_USE,
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79 UNUSED_ENTRY = 0xFF
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80
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81 } T_DB_STATE;
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82
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83 #ifdef FFS_CLOSE_BEFORE_OPEN
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84
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85 typedef struct
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86 {
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87
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88 UBYTE fld_ctr;
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89 T_FFS_FD filehandle;
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90
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91 } FileHandleRecord;
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92
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93 #endif
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94
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95 /*
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96 Field record
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97 */
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98 typedef struct
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99 {
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100
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101 USHORT FieldID; /* Elementary file identifier */
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102 T_DB_TYPE DBType; /* database type (UNMANAGED, FREELIST) */
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103 USHORT RecordSize; /* Size of data in data base record */
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104 UBYTE NumOfRecords; /* Number of records */
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105 UBYTE UsedRecords; /* Number of used records */
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106 UBYTE RecordBitMap [RECORD_BITMAP_SIZE]; /* Bitmap representing whether record is present or not */
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107 UBYTE Clean; /* File consistency: 0x01 => Clean, 0x00 => Not Clean */
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108 UBYTE SortIndexList [MAX_NUM_OF_SORT_INDEXS]; /* Number of associated index files */
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109 UBYTE* SortedLists [MAX_NUM_OF_SORT_INDEXS]; /* Sorted lists */
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110
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111 #ifndef FFS_CLOSE_BEFORE_OPEN
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112 T_FFS_FD FFSFileHandle; /* FFS File Handle for User file */
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113 #endif
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114
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115 UBYTE NextRecordNum; /* To take care of non-seqential write */
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116
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117 } T_DBM_FIELDRECORD;
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118
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119
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120 typedef struct
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121 {
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122
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123 UBYTE DBDirectory[MAX_LEN_DIRECTORY]; /* Directory path */
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124 UBYTE NumOfFiles; /* Maximum files in that database */
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125 UBYTE UsedFiles; /* Number of used files */
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126 UBYTE Tracked_Clean; /* Tracked: History log to be maintained or not
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127 Clean: Database is consistent or not */
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128 T_DB_STATE DBState; /* Database state */
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129
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130 T_FFS_FD FFSFileHandle; /* FFS File Handle for DD_<db_handle> */
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131
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132 #ifdef FFS_CLOSE_BEFORE_OPEN
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133 FileHandleRecord READ_OPEN_FIELDS [MAX_OPEN_READ_PER_DB]; /* fields opened for read only */
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134 FileHandleRecord WRITE_OPEN_FIELDS [MAX_OPEN_WRITE_PER_DB]; /* fields opened for read/write both */
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135 UBYTE old_read; /* remeber oldest open */
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136 UBYTE old_write; /* remeber oldest read */
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137 #endif
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138
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139 T_DBM_FIELDRECORD* ptrFieldRecord; /* pointer to fields */
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140
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141 } T_DBM_MASTERRECORD;
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142
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143
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144 /*
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145 Which sort ?
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146 */
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147 typedef enum
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148 {
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149
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150 QUICK_SORT = 0,
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151
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152 #ifdef INSERTION_SORT
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153 INCREMENTAL_SORT
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154 #endif
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155
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156 } T_DB_SORT;
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157
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158 #endif
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159