1 | /* |
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2 | * IMFS debug support routines |
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3 | * |
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4 | * COPYRIGHT (c) 1989-1999. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.com/license/LICENSE. |
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10 | * |
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11 | * $Id$ |
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12 | */ |
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13 | |
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14 | #if HAVE_CONFIG_H |
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15 | #include "config.h" |
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16 | #endif |
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17 | |
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18 | #include <assert.h> |
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19 | #include <string.h> |
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20 | #include <fcntl.h> |
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21 | #include <errno.h> |
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22 | #include <stdlib.h> |
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23 | #include <unistd.h> /* for close */ |
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24 | |
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25 | #include <stdio.h> |
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26 | #include <sys/stat.h> |
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27 | |
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28 | #include "imfs.h" |
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29 | #include <rtems/libio_.h> |
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30 | |
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31 | /* |
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32 | * IMFS_types |
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33 | * |
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34 | * Printable names for each of the IMFS file system types. |
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35 | */ |
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36 | |
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37 | char *IMFS_types[ IMFS_NUMBER_OF_TYPES ] = { |
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38 | "directory", |
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39 | "device", |
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40 | "link", |
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41 | "memory file", |
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42 | "linear file" |
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43 | }; |
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44 | |
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45 | /* |
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46 | * IMFS_print_jnode |
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47 | * |
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48 | * This routine prints the contents of the specified jnode. |
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49 | */ |
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50 | |
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51 | void IMFS_print_jnode( |
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52 | IMFS_jnode_t *the_jnode |
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53 | ) |
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54 | { |
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55 | assert( the_jnode ); |
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56 | |
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57 | fprintf(stdout, "%s", the_jnode->name ); |
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58 | switch( the_jnode->type ) { |
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59 | case IMFS_DIRECTORY: |
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60 | fprintf(stdout, "/" ); |
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61 | break; |
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62 | |
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63 | case IMFS_DEVICE: |
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64 | fprintf(stdout, " (device %d, %d)", |
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65 | the_jnode->info.device.major, the_jnode->info.device.minor ); |
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66 | break; |
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67 | |
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68 | case IMFS_LINEAR_FILE: |
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69 | fprintf(stdout, " (file %d %p)", |
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70 | (int)the_jnode->info.linearfile.size, |
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71 | the_jnode->info.linearfile.direct |
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72 | ); |
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73 | break; |
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74 | |
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75 | case IMFS_MEMORY_FILE: |
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76 | /* Useful when debugging .. varies between targets */ |
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77 | #if 0 |
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78 | fprintf(stdout, " (file %d %p %p %p)", |
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79 | (int)the_jnode->info.file.size, |
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80 | the_jnode->info.file.indirect, |
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81 | the_jnode->info.file.doubly_indirect, |
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82 | the_jnode->info.file.triply_indirect |
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83 | ); |
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84 | #else |
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85 | fprintf(stdout, " (file %d)", (int)the_jnode->info.file.size ); |
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86 | #endif |
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87 | break; |
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88 | |
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89 | case IMFS_HARD_LINK: |
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90 | fprintf(stdout, " links not printed\n" ); |
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91 | assert(0); |
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92 | break; |
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93 | |
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94 | case IMFS_SYM_LINK: |
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95 | fprintf(stdout, " links not printed\n" ); |
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96 | assert(0); |
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97 | break; |
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98 | |
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99 | default: |
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100 | fprintf(stdout, " bad type %d\n", the_jnode->type ); |
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101 | assert(0); |
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102 | break; |
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103 | } |
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104 | puts(""); |
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105 | } |
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106 | |
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107 | /* |
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108 | * IMFS_dump_directory |
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109 | * |
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110 | * This routine prints the contents of a directory in the IMFS. If a |
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111 | * directory is encountered, then this routine will recurse to process |
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112 | * the subdirectory. |
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113 | */ |
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114 | |
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115 | void IMFS_dump_directory( |
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116 | IMFS_jnode_t *the_directory, |
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117 | int level |
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118 | ) |
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119 | { |
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120 | Chain_Node *the_node; |
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121 | Chain_Control *the_chain; |
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122 | IMFS_jnode_t *the_jnode; |
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123 | int i; |
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124 | |
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125 | assert( the_directory ); |
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126 | |
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127 | assert( level >= 0 ); |
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128 | |
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129 | assert( the_directory->type == IMFS_DIRECTORY ); |
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130 | |
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131 | the_chain = &the_directory->info.directory.Entries; |
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132 | |
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133 | for ( the_node = the_chain->first; |
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134 | !_Chain_Is_tail( the_chain, the_node ); |
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135 | the_node = the_node->next ) { |
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136 | |
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137 | the_jnode = (IMFS_jnode_t *) the_node; |
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138 | |
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139 | for ( i=0 ; i<=level ; i++ ) |
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140 | fprintf(stdout, "...." ); |
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141 | IMFS_print_jnode( the_jnode ); |
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142 | if ( the_jnode->type == IMFS_DIRECTORY ) |
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143 | IMFS_dump_directory( the_jnode, level + 1 ); |
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144 | } |
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145 | } |
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146 | |
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147 | /* |
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148 | * IMFS_dump |
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149 | * |
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150 | * This routine dumps the entire IMFS that is mounted at the root |
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151 | * directory. |
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152 | * |
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153 | * NOTE: Assuming the "/" directory is bad. |
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154 | * Not checking that the starting directory is in an IMFS is bad. |
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155 | */ |
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156 | |
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157 | void IMFS_dump( void ) |
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158 | { |
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159 | fprintf(stdout, "*************** Dump of Entire IMFS ***************\n" ); |
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160 | fprintf(stdout, "/\n" ); |
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161 | IMFS_dump_directory( rtems_filesystem_root.node_access, 0 ); |
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162 | fprintf(stdout, "*************** End of Dump ***************\n" ); |
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163 | } |
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164 | |
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165 | /* |
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166 | * IMFS_memfile_maximum_size() |
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167 | * |
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168 | * This routine returns the size of the largest file which can be created |
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169 | * using the IMFS memory file type. |
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170 | * |
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171 | */ |
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172 | |
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173 | int IMFS_memfile_maximum_size( void ) |
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174 | { |
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175 | return IMFS_MEMFILE_MAXIMUM_SIZE; |
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176 | } |
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