| 1 | #!/usr/bin/perl -w
|
|---|
| 2 |
|
|---|
| 3 | ###########################################################################
|
|---|
| 4 | #
|
|---|
| 5 | # unindex.pl --
|
|---|
| 6 | # A component of the Greenstone digital library software
|
|---|
| 7 | # from the New Zealand Digital Library Project at the
|
|---|
| 8 | # University of Waikato, New Zealand.
|
|---|
| 9 | #
|
|---|
| 10 | # Copyright (C) 1999 New Zealand Digital Library Project
|
|---|
| 11 | #
|
|---|
| 12 | # This program is free software; you can redistribute it and/or modify
|
|---|
| 13 | # it under the terms of the GNU General Public License as published by
|
|---|
| 14 | # the Free Software Foundation; either version 2 of the License, or
|
|---|
| 15 | # (at your option) any later version.
|
|---|
| 16 | #
|
|---|
| 17 | # This program is distributed in the hope that it will be useful,
|
|---|
| 18 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 19 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|---|
| 20 | # GNU General Public License for more details.
|
|---|
| 21 | #
|
|---|
| 22 | # You should have received a copy of the GNU General Public License
|
|---|
| 23 | # along with this program; if not, write to the Free Software
|
|---|
| 24 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|---|
| 25 | #
|
|---|
| 26 | ###########################################################################
|
|---|
| 27 |
|
|---|
| 28 | # this program will decompress all the text from a built index
|
|---|
| 29 | # and return it to gml format - may be slightly broken at present
|
|---|
| 30 |
|
|---|
| 31 | BEGIN {
|
|---|
| 32 | die "GSDLHOME not set\n" unless defined $ENV{'GSDLHOME'};
|
|---|
| 33 | die "GSDLOS not set\n" unless defined $ENV{'GSDLOS'};
|
|---|
| 34 | unshift (@INC, "$ENV{'GSDLHOME'}/perllib");
|
|---|
| 35 | $FileHandle = 'FH000';
|
|---|
| 36 | }
|
|---|
| 37 |
|
|---|
| 38 | use doc;
|
|---|
| 39 | use docsave;
|
|---|
| 40 | use util;
|
|---|
| 41 | use parsargv;
|
|---|
| 42 | use GDBM_File;
|
|---|
| 43 | use FileHandle;
|
|---|
| 44 | use English;
|
|---|
| 45 |
|
|---|
| 46 | select STDERR; $| = 1;
|
|---|
| 47 | select STDOUT; $| = 1;
|
|---|
| 48 |
|
|---|
| 49 |
|
|---|
| 50 | # globals
|
|---|
| 51 | $collection = "";
|
|---|
| 52 | $index = "";
|
|---|
| 53 | $textdir = "";
|
|---|
| 54 | $classinfo = {};
|
|---|
| 55 | $mgread = ++$FileHandle;
|
|---|
| 56 | $mgwrite = ++$FileHandle;
|
|---|
| 57 |
|
|---|
| 58 |
|
|---|
| 59 |
|
|---|
| 60 | sub print_usage {
|
|---|
| 61 | print STDERR "\n usage: $0 [options]\n\n";
|
|---|
| 62 | print STDERR " options:\n";
|
|---|
| 63 | print STDERR " -verbosity number 0=none, 3=lots\n";
|
|---|
| 64 | print STDERR " -indexdir directory The index to be decompressed (defaults to ./index)\n";
|
|---|
| 65 | print STDERR " -archivedir directory Where the converted material ends up (defaults to ./archives\n";
|
|---|
| 66 | print STDERR " -removeold Will remove the old contents of the archives\n";
|
|---|
| 67 | print STDERR " directory -- use with care\n\n";
|
|---|
| 68 | }
|
|---|
| 69 |
|
|---|
| 70 | &main ();
|
|---|
| 71 |
|
|---|
| 72 | sub main {
|
|---|
| 73 | if (!parsargv::parse(\@ARGV,
|
|---|
| 74 | 'verbosity/\d+/2', \$verbosity,
|
|---|
| 75 | 'indexdir/.*/index', \$indexdir,
|
|---|
| 76 | 'archivedir/.*/archives', \$archivedir,
|
|---|
| 77 | 'removeold', \$removeold)) {
|
|---|
| 78 | &print_usage();
|
|---|
| 79 | die "\n";
|
|---|
| 80 | }
|
|---|
| 81 |
|
|---|
| 82 | die "indexdir $indexdir does not exist\n\n" unless (-d $indexdir);
|
|---|
| 83 | $indexdir =~ s/\/$//;
|
|---|
| 84 | if (-d $archivedir) {
|
|---|
| 85 | if ($removeold) {
|
|---|
| 86 | print STDERR "Warning - removing current contents of the archives directory $archivedir\n";
|
|---|
| 87 | print STDERR " in preparation for the import\n";
|
|---|
| 88 | sleep(5); # just in case...
|
|---|
| 89 | &util::rm_r ($archivedir);
|
|---|
| 90 | }
|
|---|
| 91 | } else {
|
|---|
| 92 | &util::mk_all_dir ($archivedir);
|
|---|
| 93 | }
|
|---|
| 94 |
|
|---|
| 95 | my $gdbmfile = &get_gdbmfile ($indexdir);
|
|---|
| 96 | &set_index ();
|
|---|
| 97 | &get_classinfo ($gdbmfile);
|
|---|
| 98 | &openmg ();
|
|---|
| 99 |
|
|---|
| 100 | # read the archive information file
|
|---|
| 101 | my $archive_info_filename = &util::filename_cat ($archivedir, "archives.inf");
|
|---|
| 102 | my $archive_info = new arcinfo ();
|
|---|
| 103 | $archive_info->load_info ($archive_info_filename);
|
|---|
| 104 |
|
|---|
| 105 | # create a docsave object to process the documents
|
|---|
| 106 | my $processor = new docsave ("", $archive_info, $verbosity);
|
|---|
| 107 | $processor->setarchivedir ($archivedir);
|
|---|
| 108 |
|
|---|
| 109 | # create a document object for the classification file
|
|---|
| 110 | my $clsudoc_obj = new doc($gdbmfile, "classification");
|
|---|
| 111 | $clsudoc_obj->set_OID ("CLSU");
|
|---|
| 112 |
|
|---|
| 113 | my ($doc_obj);
|
|---|
| 114 | foreach $classification (keys %$classinfo) {
|
|---|
| 115 | my $count = 0;
|
|---|
| 116 | foreach $section (sort numerically keys %{$classinfo->{$classification}}) {
|
|---|
| 117 | print STDERR "\n$classification.$section" if $verbosity >= 2;
|
|---|
| 118 | if ($classification =~ /^B$/i) {
|
|---|
| 119 | last if $count > 10;
|
|---|
| 120 | # create a new document
|
|---|
| 121 | $doc_obj = new doc ($classinfo->{$classification}->{$section}->{'9999999'}->{'jobnum'},
|
|---|
| 122 | "indexed_doc");
|
|---|
| 123 | $doc_obj->set_OID();
|
|---|
| 124 | my $cursection = $doc_obj->get_top_section();
|
|---|
| 125 | &add_section_content ($doc_obj, $cursection,
|
|---|
| 126 | $classinfo->{$classification}->{$section});
|
|---|
| 127 | &recurse_classinfo ($doc_obj, $classinfo->{$classification}->{$section},
|
|---|
| 128 | $doc_obj->get_end_child($cursection), 0);
|
|---|
| 129 | $processor->process($doc_obj);
|
|---|
| 130 | } else {
|
|---|
| 131 | my $classifier = &int_classification ($classification);
|
|---|
| 132 | $clsudoc_obj->create_named_section("$classifier.$section");
|
|---|
| 133 | &add_section_content ($clsudoc_obj, "$classifier.$section",
|
|---|
| 134 | $classinfo->{$classification}->{$section});
|
|---|
| 135 | &recurse_classinfo ($clsudoc_obj, $classinfo->{$classification}->{$section},
|
|---|
| 136 | "", "$classifier.$section");
|
|---|
| 137 | }
|
|---|
| 138 | $count ++;
|
|---|
| 139 | }
|
|---|
| 140 | }
|
|---|
| 141 | $processor->process($clsudoc_obj);
|
|---|
| 142 | &closemg();
|
|---|
| 143 |
|
|---|
| 144 | # write out the archive information file
|
|---|
| 145 | $archive_info->save_info($archive_info_filename);
|
|---|
| 146 | }
|
|---|
| 147 |
|
|---|
| 148 | # returns the path to the gdbm info database - also
|
|---|
| 149 | # sets the $collection and $textdir global variable
|
|---|
| 150 | sub get_gdbmfile {
|
|---|
| 151 | my ($indexdir) = @_;
|
|---|
| 152 | my ($gdbmfile);
|
|---|
| 153 |
|
|---|
| 154 | opendir (DIR, $indexdir) || die "Couldn't open directory $indexdir\n\n";
|
|---|
| 155 | my @conts = readdir DIR;
|
|---|
| 156 | close DIR;
|
|---|
| 157 |
|
|---|
| 158 | foreach $file (@conts) {
|
|---|
| 159 | if ($file =~ /text$/) {
|
|---|
| 160 | $textdir = $file;
|
|---|
| 161 | last;
|
|---|
| 162 | }
|
|---|
| 163 | }
|
|---|
| 164 | die "No text directory found in $indexdir\n\n"
|
|---|
| 165 | unless defined $textdir && $textdir =~ /text$/;
|
|---|
| 166 |
|
|---|
| 167 | $gdbmfile = &util::filename_cat ($indexdir, $textdir);
|
|---|
| 168 |
|
|---|
| 169 | opendir (DIR, $gdbmfile) || die "Couldn't open directory $gdbmfile\n\n";
|
|---|
| 170 | @conts = readdir DIR;
|
|---|
| 171 | close DIR;
|
|---|
| 172 |
|
|---|
| 173 | foreach $file (@conts) {
|
|---|
| 174 | if ($file =~ /^(.*?)\.(?:ldb|bdb)$/) {
|
|---|
| 175 | $collection = $1;
|
|---|
| 176 | $gdbmfile = &util::filename_cat ($gdbmfile, $file);
|
|---|
| 177 | last;
|
|---|
| 178 | }
|
|---|
| 179 | }
|
|---|
| 180 |
|
|---|
| 181 | if (defined $collection && $collection =~ /\w/) {
|
|---|
| 182 | $textdir = &util::filename_cat ($textdir, $collection);
|
|---|
| 183 | } else {
|
|---|
| 184 | die "collection global wasn't set\n";
|
|---|
| 185 | }
|
|---|
| 186 | return $gdbmfile if (-e $gdbmfile);
|
|---|
| 187 | die "Couldn't find gdbm info database in $indexdir\n\n";
|
|---|
| 188 | }
|
|---|
| 189 |
|
|---|
| 190 | sub get_classinfo {
|
|---|
| 191 | my ($gdbmfile) = @_;
|
|---|
| 192 | my ($class);
|
|---|
| 193 |
|
|---|
| 194 | open (DB2TXT, "db2txt $gdbmfile |") || die "couldn't open pipe to db2txt\n";
|
|---|
| 195 |
|
|---|
| 196 | print STDERR "Generating classification table from $gdbmfile\n" if $verbosity >= 2;
|
|---|
| 197 | my $count = 0;
|
|---|
| 198 |
|
|---|
| 199 | $/ = '-' x 70;
|
|---|
| 200 | my $entry = "";
|
|---|
| 201 | while (defined ($entry = <DB2TXT>)) {
|
|---|
| 202 | next unless $entry =~ /\w/;
|
|---|
| 203 | $entry =~ s/\n+/\\n/g;
|
|---|
| 204 | my ($key, $value) = $entry =~ /\[([^\]]*)\](.*)/;
|
|---|
| 205 |
|
|---|
| 206 | print STDERR "." if (($count % 100) == 99 && $verbosity >= 2);
|
|---|
| 207 |
|
|---|
| 208 | next if ($key !~ /\./); # ignore the docnums and top level of classifications
|
|---|
| 209 |
|
|---|
| 210 | die "Badly formatted key $key in $gdbmfile\n\n"
|
|---|
| 211 | unless (($class, $section) = $key =~ /^(.)\.(.*)$/);
|
|---|
| 212 | $classinfo->{$class} = {} unless defined $classinfo->{$class};
|
|---|
| 213 | my @sections = split /\./, $section;
|
|---|
| 214 |
|
|---|
| 215 | my $hashptr = $classinfo->{$class};
|
|---|
| 216 | foreach $sec (@sections) {
|
|---|
| 217 | $hashptr->{$sec} = {} unless defined $hashptr->{$sec};
|
|---|
| 218 | $hashptr = $hashptr->{$sec};
|
|---|
| 219 | }
|
|---|
| 220 | &get_metadata ($key, \$value, $hashptr);
|
|---|
| 221 |
|
|---|
| 222 | $count ++;
|
|---|
| 223 | }
|
|---|
| 224 |
|
|---|
| 225 | $/ = "\n";
|
|---|
| 226 | print STDERR "\n" if $verbosity >= 2;
|
|---|
| 227 | }
|
|---|
| 228 |
|
|---|
| 229 | sub get_metadata {
|
|---|
| 230 | my ($key, $gdb_str_ref, $hashsection) = @_;
|
|---|
| 231 |
|
|---|
| 232 | my ($title) = $$gdb_str_ref =~ /(?:<t>|<title>)(.*?)(?:\\n|$)/i;
|
|---|
| 233 | my ($docnum) = $$gdb_str_ref =~ /(?:<d>|<docnum>)(.*?)(?:\\n|$)/i;
|
|---|
| 234 | my ($jobnum) = $$gdb_str_ref =~ /(?:<j>|<jobnumber>)(.*?)(?:\\n|$)/i;
|
|---|
| 235 | my ($classifications) = $$gdb_str_ref =~ /(?:<x>|<classification>)(.*?)(?:\\n|$)/i;
|
|---|
| 236 | my $hastext = 1;
|
|---|
| 237 | $hastext = 0 if ($$gdb_str_ref =~ /(?:<c>|<contains>)(.*?)(?:\\n|$)/i);
|
|---|
| 238 | my ($creator) = $$gdb_str_ref =~ /<a>(.*?)(?:\\n|$)/i;
|
|---|
| 239 | my ($date) = $$gdb_str_ref =~ / <i>(.*?)(?:\\n|$)/i;
|
|---|
| 240 |
|
|---|
| 241 | # just in case there are empty classifications
|
|---|
| 242 | if ($hastext && !defined $docnum) {
|
|---|
| 243 | print STDERR "\nwarning: $key entry has no contents\n" if $verbosity;
|
|---|
| 244 | if ($verbosity >= 2) {
|
|---|
| 245 | my $valuestr = $$gdb_str_ref;
|
|---|
| 246 | $valuestr =~ s/\\n/\n/g;
|
|---|
| 247 | print STDERR "$valuestr\n";
|
|---|
| 248 | }
|
|---|
| 249 | $hastext = 0;
|
|---|
| 250 | }
|
|---|
| 251 |
|
|---|
| 252 | # shove metadata in 9999999 to keep it numeric and prevent
|
|---|
| 253 | # sorting from being a pain. Watch out for documents with
|
|---|
| 254 | # 9999999 subsections ;-)
|
|---|
| 255 | if (defined $hashsection->{'9999999'}) {
|
|---|
| 256 | print STDERR "\nwarning: $key appears multiple times\n" if $verbosity;
|
|---|
| 257 | } else {
|
|---|
| 258 | $hashsection->{'9999999'}->{'Title'} = $title if defined $title;
|
|---|
| 259 | $hashsection->{'9999999'}->{'docnum'} = $docnum if defined $docnum;
|
|---|
| 260 | $hashsection->{'9999999'}->{'jobnum'} = $jobnum if defined $jobnum;
|
|---|
| 261 | $hashsection->{'9999999'}->{'classifications'} = $classifications if defined $classifications;
|
|---|
| 262 | $hashsection->{'9999999'}->{'hastext'} = $hastext;
|
|---|
| 263 | $hashsection->{'9999999'}->{'Creator'} = $creator if defined $creator;
|
|---|
| 264 | $hashsection->{'9999999'}->{'Date'} = $date if defined $date;
|
|---|
| 265 | }
|
|---|
| 266 | }
|
|---|
| 267 |
|
|---|
| 268 | sub recurse_classinfo {
|
|---|
| 269 | my ($doc_obj, $hashsection, $cursection, $class) = @_;
|
|---|
| 270 | foreach $section (sort numerically keys %$hashsection) {
|
|---|
| 271 | next if $section == 9999999;
|
|---|
| 272 | if ($class) {
|
|---|
| 273 | $doc_obj->create_named_section("$class.$section");
|
|---|
| 274 | &add_section_content ($doc_obj, "$class.$section", $hashsection->{$section});
|
|---|
| 275 | &recurse_classinfo ($doc_obj, $hashsection->{$section}, "", "$class.$section");
|
|---|
| 276 | } else {
|
|---|
| 277 | $cursection =
|
|---|
| 278 | $doc_obj->insert_section($doc_obj->get_end_child($doc_obj->get_parent_section($cursection)));
|
|---|
| 279 | &add_section_content ($doc_obj, $cursection, $hashsection->{$section});
|
|---|
| 280 | &recurse_classinfo ($doc_obj, $hashsection->{$section}, $doc_obj->get_end_child($cursection));
|
|---|
| 281 | }
|
|---|
| 282 | }
|
|---|
| 283 | }
|
|---|
| 284 |
|
|---|
| 285 | sub add_section_content {
|
|---|
| 286 | my ($doc_obj, $cursection, $hashsection) = @_;
|
|---|
| 287 |
|
|---|
| 288 | $doc_obj->add_metadata ($cursection, "Title", $hashsection->{'9999999'}->{'Title'})
|
|---|
| 289 | if defined $hashsection->{'9999999'}->{'Title'};
|
|---|
| 290 | $doc_obj->add_metadata ($cursection, "Creator", $hashsection->{'9999999'}->{'Creator'})
|
|---|
| 291 | if defined $hashsection->{'9999999'}->{'Creator'};
|
|---|
| 292 | $doc_obj->add_metadata ($cursection, "Date", $hashsection->{'9999999'}->{'Date'})
|
|---|
| 293 | if defined $hashsection->{'9999999'}->{'Date'};
|
|---|
| 294 |
|
|---|
| 295 | if (defined $hashsection->{'9999999'}->{'classifications'}) {
|
|---|
| 296 | my @classifications = split /:/, $hashsection->{'9999999'}->{'classifications'};
|
|---|
| 297 | map {$doc_obj->add_metadata ($cursection, 'Subject', $_); } @classifications;
|
|---|
| 298 | }
|
|---|
| 299 |
|
|---|
| 300 | $doc_obj->add_text ($cursection, &get_text ($hashsection->{'9999999'}->{'docnum'}))
|
|---|
| 301 | if ($hashsection->{'9999999'}->{'hastext'});
|
|---|
| 302 | }
|
|---|
| 303 |
|
|---|
| 304 | sub set_index {
|
|---|
| 305 | # check that $collection has been set
|
|---|
| 306 | die "collection global was not set\n"
|
|---|
| 307 | unless defined $collection && $collection =~ /\w/;
|
|---|
| 308 |
|
|---|
| 309 | # find an index (just use first non-text directory we come across in $indexdir)
|
|---|
| 310 | opendir (INDEXDIR, $indexdir) || die "couldn't open directory $indexdir\n";
|
|---|
| 311 | my @indexes = readdir INDEXDIR;
|
|---|
| 312 | close INDEXDIR;
|
|---|
| 313 | foreach $i (@indexes) {
|
|---|
| 314 | next if $i =~ /text$/i || $i =~ /\./ ;
|
|---|
| 315 | $index = &util::filename_cat ($i, $collection);
|
|---|
| 316 | last;
|
|---|
| 317 | }
|
|---|
| 318 | }
|
|---|
| 319 |
|
|---|
| 320 | sub get_text {
|
|---|
| 321 | my ($docnum) = @_;
|
|---|
| 322 |
|
|---|
| 323 | print STDERR "." if $verbosity >= 2;
|
|---|
| 324 | &mgcommand ($docnum);
|
|---|
| 325 |
|
|---|
| 326 | <$mgread>; # eat the document separator
|
|---|
| 327 |
|
|---|
| 328 | my $text = "";
|
|---|
| 329 | my $line = "";
|
|---|
| 330 |
|
|---|
| 331 | while (defined ($line = <$mgread>))
|
|---|
| 332 | {
|
|---|
| 333 | last if $line =~ /^<\/mg>/;
|
|---|
| 334 | $text .= $line;
|
|---|
| 335 | }
|
|---|
| 336 |
|
|---|
| 337 | # Read in the last statement, which should be:
|
|---|
| 338 | # "dd documents retrieved."
|
|---|
| 339 | <$mgread>;
|
|---|
| 340 |
|
|---|
| 341 | return $text;
|
|---|
| 342 | }
|
|---|
| 343 |
|
|---|
| 344 | sub numerically {$a <=> $b;}
|
|---|
| 345 |
|
|---|
| 346 | # converts leading letter of a classification into its ascii equivalent
|
|---|
| 347 | # i.e C.2.4 becomes 67.2.4
|
|---|
| 348 | sub int_classification {
|
|---|
| 349 | my ($classification) = @_;
|
|---|
| 350 | my $c = ord($classification);
|
|---|
| 351 | $classification =~ s/^./$c/;
|
|---|
| 352 |
|
|---|
| 353 | return $classification;
|
|---|
| 354 | }
|
|---|
| 355 |
|
|---|
| 356 |
|
|---|
| 357 | # mg stuff
|
|---|
| 358 |
|
|---|
| 359 | sub openmg {
|
|---|
| 360 |
|
|---|
| 361 | die "Unable to start mgquery." unless
|
|---|
| 362 | openpipe($mgread, $mgwrite,
|
|---|
| 363 | "mgquery -d $indexdir -f $index -t $textdir");
|
|---|
| 364 |
|
|---|
| 365 | $mgwrite->autoflush();
|
|---|
| 366 |
|
|---|
| 367 | &mgcommand('.set expert true');
|
|---|
| 368 | &mgcommand('.set terminator "</mg>\n"');
|
|---|
| 369 | &mgcommand('.set mode text');
|
|---|
| 370 | &mgcommand('.set query docnums');
|
|---|
| 371 | &mgcommand('.set term_freq off');
|
|---|
| 372 | }
|
|---|
| 373 |
|
|---|
| 374 | sub closemg {
|
|---|
| 375 | &mgcommand (".quit");
|
|---|
| 376 | close($mgread);
|
|---|
| 377 | close($mgwrite);
|
|---|
| 378 | }
|
|---|
| 379 |
|
|---|
| 380 | sub mgcommand {
|
|---|
| 381 | my ($command) = @_;
|
|---|
| 382 |
|
|---|
| 383 | return if $command =~ /^\s*$/;
|
|---|
| 384 | print $mgwrite "$command\n";
|
|---|
| 385 |
|
|---|
| 386 | # eat up the command executed which is echoed
|
|---|
| 387 | <$mgread>;
|
|---|
| 388 | }
|
|---|
| 389 |
|
|---|
| 390 | # openpipe(READ, WRITE, CMD)
|
|---|
| 391 | #
|
|---|
| 392 | # Like open2, except CMD's stderr is also redirected.
|
|---|
| 393 | #
|
|---|
| 394 | sub openpipe
|
|---|
| 395 | {
|
|---|
| 396 | my ($read, $write, $cmd) = @_;
|
|---|
| 397 | my ($child_read, $child_write);
|
|---|
| 398 |
|
|---|
| 399 | $child_read = ++$FileHandle;
|
|---|
| 400 | $child_write = ++$FileHandle;
|
|---|
| 401 |
|
|---|
| 402 | pipe($read, $child_write) || die "Failed pipe($read, $child_write): $!";
|
|---|
| 403 | pipe($child_read, $write) || die "Failed pipe($child_read, $write): $!";
|
|---|
| 404 | my $pid;
|
|---|
| 405 |
|
|---|
| 406 | if (($pid = fork) < 0) {
|
|---|
| 407 | die "Failed fork: $!";
|
|---|
| 408 | } elsif ($pid == 0) {
|
|---|
| 409 | close($read);
|
|---|
| 410 | close($write);
|
|---|
| 411 | open(STDIN, "<&$child_read");
|
|---|
| 412 | open(STDOUT, ">&$child_write");
|
|---|
| 413 | open(STDERR, ">&$child_write");
|
|---|
| 414 | exec($cmd);
|
|---|
| 415 | die "Failed exec $cmd: $!";
|
|---|
| 416 | }
|
|---|
| 417 |
|
|---|
| 418 | close($child_read);
|
|---|
| 419 | close($child_write);
|
|---|
| 420 |
|
|---|
| 421 | $write->autoflush();
|
|---|
| 422 | $read->autoflush();
|
|---|
| 423 |
|
|---|
| 424 | return 1;
|
|---|
| 425 | }
|
|---|
