projects / people / pmueller / ipfire-2.x.git / blame
| Commit | Line | Data |
|---|---|---|
| a7fb5630 MT |
1 | #!/usr/bin/perl |
| 2 | ||
| 3 | ########################################## | |
| 4 | ## | |
| 5 | ## NAME | |
| 6 | ## | |
| 7 | ## DESCRIPTION | |
| 8 | ## | |
| 9 | ## Which is part of the ADSL-optimizer. | |
| 10 | ## | |
| 11 | ## USAGE / FUNCTIONS | |
| 12 | ## | |
| 13 | ## | |
| 14 | ## | |
| 15 | ## | |
| 16 | ## | |
| 17 | ## REQUIRES | |
| 18 | ## | |
| 19 | ## | |
| 20 | ## AUTHOR | |
| 21 | ## Jesper Dangaard Brouer <hawk@diku.dk>, d.15/4-2004 | |
| 22 | ## | |
| 23 | ## CHANGELOG | |
| 24 | ## 2004-04-15: Initial version. | |
| 25 | ## 2005-04-18: Remove some warnings. | |
| 26 | ## | |
| 27 | ## $Id: parse-func.pl,v 1.15 2005/04/18 12:37:17 hawk Exp $ | |
| 28 | ########################################## | |
| 29 | ||
| 30 | #use Data::Dumper; | |
| 31 | ||
| 32 | #our %classes_data; | |
| 33 | #our %classes_info; | |
| 34 | #our $tc_command="/sbin/tc"; | |
| 35 | ||
| 36 | my @input_htb = (<<"END_OF_HERE_HTB" =~ m/^\s*(.+)/gm); | |
| 37 | class tbf 4220:1 parent 4220: | |
| 38 | class htb 1:1 root rate 400Kbit ceil 400Kbit burst 2111b cburst 2111b | |
| 39 | Sent 12369084336 bytes 80967118 pkts (dropped 0, overlimits 0) | |
| 40 | rate 45020bps 258pps | |
| 41 | lended: 23353805 borrowed: 0 giants: 0 | |
| 42 | tokens: 30210 ctokens: 30210 | |
| 43 | ||
| 44 | class htb 1:10 parent 1:1 prio 0 rate 80Kbit ceil 320Kbit burst 1701b cburst 2008b | |
| 45 | Sent 80640087 bytes 247988 pkts (dropped 0, overlimits 0) | |
| 46 | backlog 42p | |
| 47 | lended: 230876 borrowed: 17112 giants: 0 | |
| 48 | tokens: 127200 ctokens: 37940 | |
| 49 | ||
| 50 | class htb 1:20 parent 1:1 leaf 4220: prio 1 rate 100Kbit ceil 200Kbit burst 1727b cburst 1855b | |
| 51 | Sent 2495181573 bytes 44034303 pkts (dropped 5837, overlimits 0) | |
| 52 | lended: 43825585 borrowed: 208718 giants: 0 | |
| 53 | tokens: 103424 ctokens: 55808 | |
| 54 | ||
| 55 | class htb 1:30 parent 1:1 leaf 4230: prio 3 rate 80Kbit ceil 400Kbit burst 1701b cburst 2111b | |
| 56 | Sent 2060213567 bytes 5465574 pkts (dropped 121, overlimits 0) | |
| 57 | rate 16851bps 35pps | |
| 58 | lended: 4556992 borrowed: 908582 giants: 0 | |
| 59 | tokens: -25364 ctokens: 32897 | |
| 60 | ||
| 61 | class htb 1:50 parent 1:1 leaf 4250: prio 5 rate 40Kbit ceil 120Kbit burst 1650b cburst 1752b | |
| 62 | Sent 6071486687 bytes 24448436 pkts (dropped 8086739, overlimits 0) | |
| 63 | rate 15801bps 85pps backlog 126p | |
| 64 | lended: 8324530 borrowed: 16123780 giants: 0 | |
| 65 | tokens: -202717 ctokens: -172499 | |
| 66 | ||
| 67 | class htb 1:666 parent 1:1 leaf 666: prio 7 rate 4Kbit ceil 40Kbit burst 1604b cburst 1650b | |
| 68 | Sent 2148626078 bytes 6771069 pkts (dropped 2078536, overlimits 0) | |
| 69 | rate 5221bps 17pps backlog 125p | |
| 70 | lended: 675330 borrowed: 6095613 giants: 0 | |
| 71 | tokens: -1149121 ctokens: -293386 | |
| 72 | ||
| 73 | END_OF_HERE_HTB | |
| 74 | ||
| 75 | ||
| 76 | my @input_hfsc = (<<"END_OF_HERE_HFSC" =~ m/^\s*(.+)/gm); | |
| 77 | class hfsc 1: root | |
| 78 | Sent 0 bytes 0 pkts (dropped 0, overlimits 0) | |
| 79 | period 0 level 2 | |
| 80 | ||
| 81 | class hfsc 1:1 parent 1: ls m1 0bps d 0us m2 250Kbit ul m1 0bps d 0us m2 250Kbit | |
| 82 | Sent 0 bytes 0 pkts (dropped 0, overlimits 0) | |
| 83 | period 6 work 131770097 bytes level 1 | |
| 84 | ||
| 85 | class hfsc 1:10 parent 1:1 rt m1 250Kbit d 30.0ms m2 50Kbit ls m1 250Kbit d 50.0ms m2 50Kbit | |
| 86 | Sent 1300885 bytes 7052 pkts (dropped 0, overlimits 0) | |
| 87 | period 6502 work 1300885 bytes rtwork 1245495 bytes level 0 | |
| 88 | ||
| 89 | class hfsc 1:20 parent 1: rt m1 0bps d 64.0ms m2 75Kbit ls m1 0bps d 0us m2 250Kbit | |
| 90 | Sent 19144279 bytes 325503 pkts (dropped 46, overlimits 0) | |
| 91 | backlog 3p | |
| 92 | period 20242 work 19143778 bytes level 0 | |
| 93 | ||
| 94 | class hfsc 1:30 parent 1:1 leaf 4230: ls m1 0bps d 150.0ms m2 50Kbit | |
| 95 | Sent 45139930 bytes 74200 pkts (dropped 1664, overlimits 0) | |
| 96 | backlog 24p | |
| 97 | period 140 work 44885232 bytes level 0 | |
| 98 | ||
| 99 | class hfsc 1:50 parent 1:1 leaf 4250: ls m1 0bps d 235.7ms m2 72Kbit | |
| 100 | Sent 73910198 bytes 301294 pkts (dropped 104807, overlimits 0) | |
| 101 | backlog 62p | |
| 102 | period 115 work 64625490 bytes level 0 | |
| 103 | ||
| 104 | class hfsc 1:666 parent 1:1 leaf 666: ls m1 0bps d 1.0s m2 2Kbit | |
| 105 | Sent 2217104 bytes 17018 pkts (dropped 74526, overlimits 0) | |
| 106 | backlog 22p | |
| 107 | period 1 work 1814712 bytes level 0 | |
| 108 | ||
| 109 | END_OF_HERE_HFSC | |
| 110 | ||
| 111 | sub parse_class($) { | |
| 112 | my $device = "$_[0]"; | |
| 113 | my $return_val = 1; | |
| 114 | ||
| 115 | my $timestamp = time; | |
| 116 | my @tc_output = `$tc_command -statistics class show dev $device`; | |
| 117 | # my @tc_output = @input_hfsc; | |
| 118 | # my @tc_output = @input_htb; | |
| 119 | my $result = $?; | |
| 120 | if ( $result != 0 ) { | |
| 121 | print "Error executing $tc_command\n"; | |
| 122 | return $result; | |
| 123 | } | |
| 124 | ||
| 125 | $classes_data{last_update}{$device} = $timestamp; | |
| 126 | $classes_info{last_update}{$device} = $timestamp; | |
| 127 | ||
| 128 | #for my $line (@tc_output) { | |
| 129 | for my $i (0 .. $#tc_output) { | |
| 130 | ||
| 131 | my $line=$tc_output[$i]; | |
| 132 | # Parsing HTB: | |
| 133 | # ------------ | |
| f1df2c41 | 134 | if ( $line =~ m/class htb (\d+):(\d+)( root| parent )?(\d+:\d+)?( leaf )?(\d+)?:?( prio )?(\d+)? rate (.*) ceil (.*) burst (.*) cburst (.*)/ ) { |
| a7fb5630 MT |
135 | my $type = "htb"; |
| 136 | my $major = $1; | |
| 137 | my $minor = $2; | |
| 138 | my $class = "${major}-${minor}"; | |
| 139 | #my $hash = "${class}_${device}"; | |
| 140 | my $parent= $4; | |
| 141 | my $leaf = $6; | |
| 142 | my $prio = $8; | |
| 143 | my $rate = $9; | |
| 144 | my $ceil = $10; | |
| 145 | my $burst = $11; | |
| 146 | my $cburst= $12; | |
| 147 | ||
| 148 | # print "class: $class\n"."parent: $parent\n"."leaf: $leaf\n"."prio: $prio\n"; | |
| 149 | # print "rate: $rate\n"."ceil: $ceil\n"."burst: $burst\n"."cburst: $cburst\n"; | |
| 150 | ||
| 151 | my ($bytes, $pkts, $dropped, $overlimits); | |
| 152 | if ($tc_output[$i + 1] =~ m/Sent (\d+) bytes (\d+) pkts \(dropped (\d+), overlimits (\d+)\)/ ) { | |
| 153 | $bytes = $1; | |
| 154 | $pkts = $2; | |
| 155 | $dropped = $3; | |
| 156 | $overlimits = $4; | |
| 157 | # print "bytes: $bytes\n"."pkts: $pkts\n"; | |
| 158 | # print "dropped: $dropped\n"."overlimits: $overlimits\n"; | |
| 159 | } else { | |
| 160 | print "$timestamp: ERROR(+1) - Unable to parse (class ${class}_$device): "; | |
| 161 | print "\"$tc_output[$i + 1]\"\n"; | |
| 162 | $return_val=""; | |
| 163 | next; | |
| 164 | } | |
| 165 | ||
| 166 | # Problem: | |
| 167 | # Sometimes the "rate" line is not shown (when a rate cannot be calculated) | |
| 168 | # And sometimes only "backlog"... | |
| 169 | # Use $next_index to specify the next line to parse | |
| 170 | # | |
| 171 | my $next_index = 3; | |
| 172 | my ($backlog); | |
| 173 | if ($tc_output[$i + 2] =~ m/((rate (\d+\w+) )|backlog )(\d+)?(pps )?(backlog )?(\d+)?p?/ ) { | |
| 174 | $backlog = $7; | |
| 175 | #print "backlog: $backlog\n"; | |
| 176 | } else { | |
| 177 | # Too verbose: | |
| 178 | # print "$timestamp: WARNING \"rate\" line missing"; | |
| 179 | # print " very inactive class ${class}_$device).\n"; | |
| 180 | $next_index = 2; | |
| 181 | } | |
| 182 | ||
| 183 | my ($lended, $borrowed, $giants); | |
| 184 | if ($tc_output[$i + $next_index] =~ m/lended: (\d+) borrowed: (\d+) giants: (\d+)/ ) { | |
| 185 | $lended = $1; | |
| 186 | $borrowed = $2; | |
| 187 | $giants = $3; | |
| 188 | #print "lended: $lended\n"."borrowed: $borrowed\n"."giants: $giants\n"; | |
| 189 | } else { | |
| 190 | print "$timestamp: ERROR(+$next_index) - Unable to parse (class ${class}_$device): "; | |
| 191 | print "\"$tc_output[$i + $next_index]\"\n"; | |
| 192 | $return_val=""; | |
| 193 | next; | |
| 194 | } | |
| 195 | ||
| 196 | # Update the hash tables | |
| 197 | my $hash="${class}_$device"; | |
| 198 | ||
| 199 | # Tests if previous data have been updated to file | |
| 200 | if ( (exists $classes_data{$hash}{last_update}) && | |
| 201 | (exists $classes_data{$hash}{file_update})) { | |
| 202 | if ( $classes_data{$hash}{last_update} > | |
| 203 | $classes_data{$hash}{file_update} ){ | |
| 204 | print "Warning: old data from $hash has not been updated to file!\n"; | |
| 205 | } | |
| 206 | } | |
| 207 | ||
| 208 | # Update the statistics data | |
| 209 | # (need a function call for error checking) | |
| 210 | $classes_data{$hash}{last_update} = $timestamp; | |
| 211 | update_counter( $hash, $timestamp, "bytes" , $bytes); | |
| 212 | #(yes I know its bad/redundant, but it makes in easier elsewhere) | |
| 213 | update_counter( $hash, $timestamp, "bits" , $bytes*8); | |
| 214 | update_counter( $hash, $timestamp, "pkts" , $pkts); | |
| 215 | update_counter( $hash, $timestamp, "dropped" , $dropped); | |
| 216 | update_counter( $hash, $timestamp, "overlimits", $overlimits); | |
| 217 | update_counter( $hash, $timestamp, "lended" , $lended); | |
| 218 | update_counter( $hash, $timestamp, "borrowed" , $borrowed); | |
| 219 | update_counter( $hash, $timestamp, "giants" , $giants); | |
| 220 | # Not a counter value... | |
| 221 | $classes_data{$hash}{backlog} = $backlog; | |
| 222 | ||
| 223 | # Update the info data | |
| 224 | # (remember to update the "type" first) | |
| 225 | update_info( $hash, $timestamp, "type" , $type); | |
| 226 | update_info( $hash, $timestamp, "parent", $parent); | |
| 227 | update_info( $hash, $timestamp, "leaf" , $leaf); | |
| 228 | update_info( $hash, $timestamp, "prio" , $prio); | |
| 229 | update_info( $hash, $timestamp, "rate" , $rate); | |
| 230 | update_info( $hash, $timestamp, "ceil" , $ceil); | |
| 231 | update_info( $hash, $timestamp, "burst" , $burst); | |
| 232 | update_info( $hash, $timestamp, "cburst", $cburst); | |
| 233 | ||
| 234 | #print "\n"; | |
| 235 | } | |
| 236 | ||
| 237 | # Parsing HFSC: | |
| 238 | # ------------- | |
| 239 | if ( $line =~ m/class hfsc (\d+):(\d+)( root| parent )?(\d+:\d?)?( leaf )?(\d+)?:?( rt m1 (\d+\w+?) d (\d+.?\d?\w+) m2 (\d+\w+?))?( ls m1 (\d+\w+?) d (\d+.?\d?\w+) m2 (\d+\w+?))?( ul m1 (\d+\w+?) d (\d+.?\d?\w+) m2 (\d+\w+?))? / ){ | |
| 240 | ||
| 241 | my $type = "hfsc"; | |
| 242 | my $major = $1; | |
| 243 | my $minor = $2; | |
| 244 | my $class = "${major}-${minor}"; | |
| 245 | #my $hash = "${class}_${device}"; | |
| 246 | my $parent= $4; | |
| 247 | my $leaf = $6; | |
| 248 | ||
| 249 | my $realtime_m1; if (defined $8 && $8 ne '0bps') {$realtime_m1 = $8;} | |
| 250 | my $realtime_d; if (defined $9 && $9 ne '0us' ) {$realtime_d = $9;} | |
| 251 | my $realtime_m2 = $10; | |
| 252 | ||
| 253 | my $linkshare_m1; if (defined $12 && $12 ne '0bps') { $linkshare_m1 = $12;} | |
| 254 | my $linkshare_d ; if (defined $13 && $13 ne '0us' ) { $linkshare_d = $13;} | |
| 255 | my $linkshare_m2 = $14; | |
| 256 | ||
| 257 | my $upperlimit_m1; if (defined $16 && $16 ne '0bps') { $upperlimit_m1 = $16;} | |
| 258 | my $upperlimit_d ; if (defined $17 && $17 ne '0us' ) { $upperlimit_d = $17;} | |
| 259 | my $upperlimit_m2 = $18; | |
| 260 | ||
| 261 | #print "\nType: $type\n"; | |
| 262 | my ($bytes, $pkts, $dropped, $overlimits); | |
| 263 | if ($tc_output[$i + 1] =~ m/Sent (\d+) bytes (\d+) pkts \(dropped (\d+), overlimits (\d+)\)/ ) { | |
| 264 | $bytes = $1; | |
| 265 | $pkts = $2; | |
| 266 | $dropped = $3; | |
| 267 | $overlimits = $4; | |
| 268 | #print "bytes: $bytes\n"."pkts: $pkts\n"; | |
| 269 | #print "dropped: $dropped\n"."overlimits: $overlimits\n"; | |
| 270 | } else { | |
| 271 | print "$timestamp: ERROR(+1) - Unable to parse (class ${class}_$device): "; | |
| 272 | print "\"$tc_output[$i + 1]\"\n"; | |
| 273 | $return_val=""; | |
| 274 | next; | |
| 275 | } | |
| 276 | ||
| 277 | # Sometimes the "backlog" line is not shown (when there is no backlog...) | |
| 278 | # Use $next_index to specify the next line to parse | |
| 279 | # | |
| 280 | my $next_index = 3; | |
| 281 | my ($backlog); | |
| 282 | if ($tc_output[$i + 2] =~ m/backlog (\d+)?p?/ ) { | |
| 283 | $backlog = $1; | |
| 284 | #print "backlog: $backlog\n"; | |
| 285 | } else { | |
| 286 | $next_index = 2; | |
| 287 | } | |
| 288 | ||
| 289 | my ($period, $work, $rtwork, $level); | |
| 290 | if ($tc_output[$i + $next_index] =~ m/period (\d+) (work (\d+) bytes )?(rtwork (\d+) bytes )?level (\d+)/ ) { | |
| 291 | $period = $1; | |
| 292 | $work = $3; | |
| 293 | $rtwork = $5; | |
| 294 | $level = $6 | |
| 295 | } else { | |
| 296 | print "$timestamp: ERROR(+$next_index) - Unable to parse (class ${class}_$device): "; | |
| 297 | print "\"$tc_output[$i + $next_index]\"\n"; | |
| 298 | $return_val=""; | |
| 299 | next; | |
| 300 | } | |
| 301 | ||
| 302 | ||
| 303 | # Update the hash tables | |
| 304 | my $hash="${class}_$device"; | |
| 305 | ||
| 306 | # Tests if previous data have been updated to file | |
| 307 | if ( (exists $classes_data{$hash}{last_update}) && | |
| 308 | (exists $classes_data{$hash}{file_update})) { | |
| 309 | if ( $classes_data{$hash}{last_update} > | |
| 310 | $classes_data{$hash}{file_update} ){ | |
| 311 | print "Warning: old data from $hash has not been updated to file!\n"; | |
| 312 | } | |
| 313 | } | |
| 314 | ||
| 315 | # HFSC - Update the statistics data | |
| 316 | # (need a function call for error checking) | |
| 317 | $classes_data{$hash}{last_update} = $timestamp; | |
| 318 | update_counter( $hash, $timestamp, "bytes" , $bytes); | |
| 319 | #(yes I know its bad/redundant, but it makes in easier elsewhere) | |
| 320 | update_counter( $hash, $timestamp, "bits" , $bytes*8); | |
| 321 | update_counter( $hash, $timestamp, "pkts" , $pkts); | |
| 322 | update_counter( $hash, $timestamp, "dropped" , $dropped); | |
| 323 | update_counter( $hash, $timestamp, "overlimits", $overlimits); | |
| 324 | # Not a counter value... | |
| 325 | $classes_data{$hash}{backlog} = $backlog; | |
| 326 | # | |
| 327 | # Extra HFSC counters | |
| 328 | $classes_data{$hash}{hfsc_period} = $period; | |
| 329 | update_counter( $hash, $timestamp, "hfsc_work" , $work); | |
| 330 | update_counter( $hash, $timestamp, "hfsc_rtwork" , $rtwork); | |
| 331 | ||
| 332 | ||
| 333 | # HFSC - Update the info data | |
| 334 | # (remember to update the "type" first) | |
| 335 | update_info( $hash, $timestamp, "type" , $type); | |
| 336 | update_info( $hash, $timestamp, "parent", $parent); | |
| 337 | update_info( $hash, $timestamp, "leaf" , $leaf); | |
| 338 | # | |
| 339 | # Extra HFSC information | |
| 340 | update_info( $hash, $timestamp, "level" , $level); | |
| 341 | update_info( $hash, $timestamp, "realtime_m1", $realtime_m1); | |
| 342 | update_info( $hash, $timestamp, "realtime_d" , $realtime_d); | |
| 343 | update_info( $hash, $timestamp, "realtime_m2", $realtime_m2); | |
| 344 | ||
| 345 | update_info( $hash, $timestamp, "linkshare_m1", $linkshare_m1); | |
| 346 | update_info( $hash, $timestamp, "linkshare_d" , $linkshare_d); | |
| 347 | update_info( $hash, $timestamp, "linkshare_m2", $linkshare_m2); | |
| 348 | ||
| 349 | update_info( $hash, $timestamp, "upperlimit_m1", $upperlimit_m1); | |
| 350 | update_info( $hash, $timestamp, "upperlimit_d" , $upperlimit_d); | |
| 351 | update_info( $hash, $timestamp, "upperlimit_m2", $upperlimit_m2); | |
| 352 | ||
| 353 | ||
| 354 | } | |
| 355 | ||
| 356 | # Parsing XXX: | |
| 357 | # ------------ | |
| 358 | if ( $line =~ m/class XXX/ ) { | |
| 359 | print "Matching class XXX\n"; | |
| 360 | } | |
| 361 | ||
| 362 | } | |
| 363 | return $return_val; | |
| 364 | } | |
| 365 | ||
| 366 | # The main purpose of this function is to detect counter resets | |
| 367 | # and avoid parsing them on to RRDtool which interprets them | |
| 368 | # as counter overflows, thus updating with a very large number. | |
| 369 | sub update_counter ($$$$) { | |
| 370 | my $class_hash = "$_[0]"; | |
| 371 | my $timestamp = "$_[1]"; | |
| 372 | my $data_key = "$_[2]"; | |
| 373 | my $new_value; | |
| 374 | if ( defined $_[3]) { | |
| 375 | $new_value = "$_[3]"; | |
| 376 | } | |
| 377 | # | |
| 378 | my $max_allowed_wrap_increase = 100000000; | |
| 379 | my $old_value; | |
| 380 | if (exists $classes_data{$class_hash}{$data_key}) { | |
| 381 | $old_value = $classes_data{$class_hash}{$data_key}; | |
| 382 | #print "old_value: $old_value\n"; | |
| 383 | } | |
| 384 | ||
| 385 | # # If the new and old value is not defined, nothing is done | |
| 386 | # if ((not defined $new_value) && (not defined $old_value)) { | |
| 387 | # return ""; | |
| 388 | # } | |
| 389 | ||
| 390 | # Argh... the tc program outputs in unsigned long long (64 bit). | |
| 391 | # but perls integers should be 32 bit, but some how perl | |
| 392 | # manages to store numbers larger than 32 bit numbers. | |
| 393 | my $MAX_VALUE=0xFFFFFFFF; | |
| 394 | ||
| 395 | if ((defined $new_value) && (defined $old_value)) { | |
| 396 | my $delta = $new_value - $old_value; | |
| 397 | if ( $delta < 0 ) { | |
| 398 | # Counter wrap around... | |
| 399 | my $real_delta = $delta + $MAX_VALUE + 1; | |
| 400 | if ($real_delta < 0) { | |
| 401 | print "($class_hash:$data_key): Perl-Magic using numbers bigger than 32bit "; | |
| 402 | print "new:$new_value - old:$old_value = delta:$delta, real_delta:$real_delta.\n"; | |
| 403 | } | |
| 404 | print time . " ($class_hash:$data_key) Info: Counter wrap around (real delta:$real_delta)\n"; | |
| 405 | if ( ($real_delta > $max_allowed_wrap_increase) || | |
| 406 | ($real_delta < 0)) { | |
| 407 | # Properly a counter reset and not a wrap around | |
| 408 | # A counter reset normally a result of a reload of the classes | |
| 409 | $classes_data{$class_hash}{$data_key} = undef; | |
| 410 | $classes_info{$class_hash}{counter_reset} = $timestamp; | |
| 411 | $classes_info{$class_hash}{last_update} = $timestamp; | |
| 412 | print time . "Warning: Real_delta too big, assuming Counter reset"; | |
| 413 | print "($class_hash:$data_key)\n"; | |
| 414 | return "Counter reset"; | |
| 415 | } | |
| 416 | } | |
| 417 | } | |
| 418 | ||
| 419 | $classes_data{$class_hash}{$data_key} = $new_value; | |
| 420 | return 1; | |
| 421 | } | |
| 422 | ||
| 423 | sub update_info ($$$$) { | |
| 424 | my $class_hash = "$_[0]"; | |
| 425 | my $timestamp = "$_[1]"; | |
| 426 | my $info_key = "$_[2]"; | |
| 427 | my $new_value; | |
| 428 | if ( defined $_[3]) { | |
| 429 | $new_value = "$_[3]"; | |
| 430 | } | |
| 431 | my $old_value; | |
| 432 | if (exists $classes_info{$class_hash}{$info_key}) { | |
| 433 | $old_value = $classes_info{$class_hash}{$info_key}; | |
| 434 | #print "old_value: $old_value\n"; | |
| 435 | } | |
| 436 | ||
| 437 | # If the new and old value is not defined, nothing is done | |
| 438 | if ((not defined $new_value) && (not defined $old_value)) { | |
| 439 | return ""; | |
| 440 | } | |
| 441 | ||
| 442 | # An update is needed | |
| 443 | # - if the old_value is not defined and new_value is defined | |
| 444 | # - if the new_value is not defined and old_value is defined | |
| 445 | # - if the old_value differs from the new, | |
| 446 | # | |
| 447 | if ( ((not defined $old_value) and (defined $new_value)) || | |
| 448 | ((not defined $new_value) and (defined $old_value)) || | |
| 449 | ("$old_value" ne "$new_value")) { | |
| 450 | ||
| 451 | # Special case: If the "type" changes the hash should be cleared | |
| 452 | if ( "$info_key" eq "type") { | |
| 453 | #print "Type has changed clearing hash \n"; | |
| 454 | for my $key ( keys %{ $classes_info{$class_hash} } ) { | |
| 455 | delete( $classes_info{$class_hash}{$key}); | |
| 456 | print " Deleting key: $key from: $class_hash \n"; | |
| 457 | } | |
| 458 | } | |
| 459 | ||
| 460 | if (defined $new_value) { | |
| 461 | $classes_info{$class_hash}{$info_key} = $new_value; | |
| 462 | } else { | |
| 463 | #print "New value undef -> Deleting key: $info_key from: $class_hash\n"; | |
| 464 | delete($classes_info{$class_hash}{$info_key}); | |
| 465 | } | |
| 466 | ||
| 467 | # Mark the class for an info-file update | |
| 468 | $classes_info{$class_hash}{last_update} = $timestamp; | |
| 469 | ||
| 470 | # Update list/array of "changed" keys | |
| 471 | push @{ $classes_info{$class_hash}{changed} }, $info_key; | |
| 472 | ||
| 473 | # Print debug info | |
| 474 | #print "Update class:$class_hash $info_key="; | |
| 475 | #if (defined $new_value) {print "$new_value"}; | |
| 476 | #print "\n"; | |
| 477 | return 1; | |
| 478 | } | |
| 479 | return ""; | |
| 480 | } | |
| 481 | ||
| 482 | # test | |
| 483 | #parse_class(eth1); | |
| 484 | ||
| 485 | #print Dumper(%classes_data); | |
| 486 | #print Dumper(%classes_info); | |
| 487 | ||
| 488 | return 1; |