1 # Copyright (C) 2015-2018 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
3 # based on notmuch, but with no concept of folders, files or flags
5 # Indexes mail with Xapian and our (SQLite-based) ::Msgmap for use
6 # with the web and NNTP interfaces. This index maintains thread
7 # relationships for use by PublicInbox::SearchThread.
8 # This writes to the search index.
9 package PublicInbox::SearchIdx;
12 use Fcntl qw(:flock :DEFAULT);
13 use PublicInbox::MIME;
14 use base qw(PublicInbox::Search);
15 use PublicInbox::MID qw/mid_clean id_compress mid_mime mids references/;
16 use PublicInbox::MsgIter;
18 use POSIX qw(strftime);
19 require PublicInbox::Git;
22 MAX_MID_SIZE => 244, # max term size (Xapian limitation) - length('Q')
25 OLD_PERM_EVERYBODY => 2,
27 PERM_EVERYBODY => 0664,
28 BATCH_BYTES => 1_000_000,
29 DEBUG => !!$ENV{DEBUG},
44 return $s unless ($s =~ /\A"(.*)"\z/);
46 $s =~ s/\\([abfnrtv])/$GIT_ESC{$1}/g;
47 $s =~ s/\\([0-7]{1,3})/chr(oct($1))/ge;
52 my ($class, $ibx, $creat, $part) = @_;
53 my $mainrepo = $ibx; # for "public-inbox-index" w/o entry in config
54 my $git_dir = $mainrepo;
58 $mainrepo = $ibx->{mainrepo};
59 $altid = $ibx->{altid};
60 $version = $ibx->{version} || 1;
62 require PublicInbox::AltId;
64 PublicInbox::AltId->new($ibx, $_);
69 $git = PublicInbox::Git->new($git_dir); # v1 only
71 require Search::Xapian::WritableDatabase;
73 mainrepo => $mainrepo,
78 my $perm = $self->_git_config_perm;
79 my $umask = _umask_for($perm);
80 $self->{umask} = $umask;
82 $self->{lock_path} = "$mainrepo/ssoma.lock";
83 } elsif ($version == 2) {
84 defined $part or die "partition is required for v2\n";
85 # partition is a number or "all"
86 $self->{partition} = $part;
87 $self->{lock_path} = undef;
88 $self->{msgmap_path} = "$mainrepo/msgmap.sqlite3";
90 die "unsupported inbox version=$version\n";
92 $self->{creat} = ($creat || 0) == 1;
98 my $xdb = delete $self->{xdb} or croak 'not acquired';
100 _lock_release($self) if $self->{creat};
106 croak 'already acquired' if $self->{xdb};
107 my $dir = $self->xdir;
108 my $flag = Search::Xapian::DB_OPEN;
109 if ($self->{creat}) {
111 _lock_acquire($self);
112 File::Path::mkpath($dir);
113 $flag = Search::Xapian::DB_CREATE_OR_OPEN;
115 $self->{xdb} = Search::Xapian::WritableDatabase->new($dir, $flag);
118 # we only acquire the flock if creating or reindexing;
119 # PublicInbox::Import already has the lock on its own.
122 croak 'already locked' if $self->{lockfh};
123 my $lock_path = $self->{lock_path} or return;
124 sysopen(my $lockfh, $lock_path, O_WRONLY|O_CREAT) or
125 die "failed to open lock $lock_path: $!\n";
126 flock($lockfh, LOCK_EX) or die "lock failed: $!\n";
127 $self->{lockfh} = $lockfh;
132 return unless $self->{lock_path};
133 my $lockfh = delete $self->{lockfh} or croak 'not locked';
134 flock($lockfh, LOCK_UN) or die "unlock failed: $!\n";
135 close $lockfh or die "close failed: $!\n";
139 my ($doc, $col, $num) = @_;
140 $num = Search::Xapian::sortable_serialise($num);
141 $doc->add_value($col, $num);
144 sub add_values ($$) {
145 my ($doc, $values) = @_;
147 my $ts = $values->[PublicInbox::Search::TS];
148 add_val($doc, PublicInbox::Search::TS, $ts);
150 my $num = $values->[PublicInbox::Search::NUM];
151 defined($num) and add_val($doc, PublicInbox::Search::NUM, $num);
153 my $bytes = $values->[PublicInbox::Search::BYTES];
154 defined($bytes) and add_val($doc, PublicInbox::Search::BYTES, $bytes);
156 my $lines = $values->[PublicInbox::Search::LINES];
157 add_val($doc, PublicInbox::Search::LINES, $lines);
159 my $yyyymmdd = strftime('%Y%m%d', gmtime($ts));
160 add_val($doc, PublicInbox::Search::YYYYMMDD, $yyyymmdd);
163 sub index_users ($$) {
164 my ($tg, $smsg) = @_;
166 my $from = $smsg->from;
170 $tg->index_text($from, 1, 'A'); # A - author
171 $tg->increase_termpos;
172 $tg->index_text($to, 1, 'XTO') if $to ne '';
173 $tg->increase_termpos;
174 $tg->index_text($cc, 1, 'XCC') if $cc ne '';
175 $tg->increase_termpos;
178 sub index_diff_inc ($$$$) {
179 my ($tg, $text, $pfx, $xnq) = @_;
181 $tg->index_text(join("\n", @$xnq), 1, 'XNQ');
182 $tg->increase_termpos;
185 $tg->index_text($text, 1, $pfx);
186 $tg->increase_termpos;
189 sub index_old_diff_fn {
190 my ($tg, $seen, $fa, $fb, $xnq) = @_;
192 # no renames or space support for traditional diffs,
193 # find the number of leading common paths to strip:
194 my @fa = split('/', $fa);
195 my @fb = split('/', $fb);
196 while (scalar(@fa) && scalar(@fb)) {
197 $fa = join('/', @fa);
198 $fb = join('/', @fb);
200 unless ($seen->{$fa}++) {
201 index_diff_inc($tg, $fa, 'XDFN', $xnq);
211 sub index_diff ($$$) {
212 my ($tg, $lines, $doc) = @_;
218 if ($in_diff && s/^ //) { # diff context
219 index_diff_inc($tg, $_, 'XDFCTX', $xnq);
220 } elsif (/^-- $/) { # email signature begins
222 } elsif (m!^diff --git ("?a/.+) ("?b/.+)\z!) {
223 my ($fa, $fb) = ($1, $2);
224 my $fn = (split('/', git_unquote($fa), 2))[1];
225 $seen{$fn}++ or index_diff_inc($tg, $fn, 'XDFN', $xnq);
226 $fn = (split('/', git_unquote($fb), 2))[1];
227 $seen{$fn}++ or index_diff_inc($tg, $fn, 'XDFN', $xnq);
230 } elsif (m/^diff -(.+) (\S+) (\S+)$/) {
231 my ($opt, $fa, $fb) = ($1, $2, $3);
233 # only support unified:
234 next unless $opt =~ /[uU]/;
235 $in_diff = index_old_diff_fn($tg, \%seen, $fa, $fb,
237 } elsif (m!^--- ("?a/.+)!) {
238 my $fn = (split('/', git_unquote($1), 2))[1];
239 $seen{$fn}++ or index_diff_inc($tg, $fn, 'XDFN', $xnq);
241 } elsif (m!^\+\+\+ ("?b/.+)!) {
242 my $fn = (split('/', git_unquote($1), 2))[1];
243 $seen{$fn}++ or index_diff_inc($tg, $fn, 'XDFN', $xnq);
245 } elsif (/^--- (\S+)/) {
248 } elsif (defined $in_diff && /^\+\+\+ (\S+)/) {
249 $in_diff = index_old_diff_fn($tg, \%seen, $in_diff, $1,
251 } elsif ($in_diff && s/^\+//) { # diff added
252 index_diff_inc($tg, $_, 'XDFB', $xnq);
253 } elsif ($in_diff && s/^-//) { # diff removed
254 index_diff_inc($tg, $_, 'XDFA', $xnq);
255 } elsif (m!^index ([a-f0-9]+)\.\.([a-f0-9]+)!) {
256 my ($ba, $bb) = ($1, $2);
257 index_git_blob_id($doc, 'XDFPRE', $ba);
258 index_git_blob_id($doc, 'XDFPOST', $bb);
260 } elsif (/^@@ (?:\S+) (?:\S+) @@\s*$/) {
261 # traditional diff w/o -p
262 } elsif (/^@@ (?:\S+) (?:\S+) @@\s*(\S+.*)$/) {
263 # hunk header context
264 index_diff_inc($tg, $1, 'XDFHH', $xnq);
265 # ignore the following lines:
266 } elsif (/^(?:dis)similarity index/ ||
267 /^(?:old|new) mode/ ||
268 /^(?:deleted|new) file mode/ ||
269 /^(?:copy|rename) (?:from|to) / ||
270 /^(?:dis)?similarity index / ||
271 /^\\ No newline at end of file/ ||
272 /^Binary files .* differ/) {
278 warn "non-diff line: $_\n" if DEBUG && $_ ne '';
283 $tg->index_text(join("\n", @xnq), 1, 'XNQ');
284 $tg->increase_termpos;
287 sub index_body ($$$) {
288 my ($tg, $lines, $doc) = @_;
289 my $txt = join("\n", @$lines);
291 # does it look like a diff?
292 if ($txt =~ /^(?:diff|---|\+\+\+) /ms) {
294 index_diff($tg, $lines, $doc);
296 $tg->index_text($txt, 1, 'XNQ');
299 $tg->index_text($txt, 0, 'XQUOT');
301 $tg->increase_termpos;
306 my ($self, $mime, $bytes, $num, $blob) = @_; # mime = Email::MIME object
308 my $mids = mids($mime->header_obj);
309 my $skel = $self->{skeleton};
312 my $smsg = PublicInbox::SearchMsg->new($mime);
313 my $doc = $smsg->{doc};
314 foreach my $mid (@$mids) {
315 # FIXME: may be abused to prevent archival
316 length($mid) > MAX_MID_SIZE and
317 die 'Message-ID too long';
318 $doc->add_term('Q' . $mid);
320 my $subj = $smsg->subject;
323 $xpath = $self->subject_path($subj);
324 $xpath = id_compress($xpath);
325 $doc->add_boolean_term('XPATH' . $xpath);
328 my $lines = $mime->body_raw =~ tr!\n!\n!;
329 my @values = ($smsg->ts, $num, $bytes, $lines);
330 add_values($doc, \@values);
332 my $tg = $self->term_generator;
334 $tg->set_document($doc);
335 $tg->index_text($subj, 1, 'S') if $subj;
336 $tg->increase_termpos;
338 index_users($tg, $smsg);
340 msg_iter($mime, sub {
341 my ($part, $depth, @idx) = @{$_[0]};
342 my $ct = $part->content_type || 'text/plain';
343 my $fn = $part->filename;
344 if (defined $fn && $fn ne '') {
345 $tg->index_text($fn, 1, 'XFN');
348 return if $ct =~ m!\btext/x?html\b!i;
350 my $s = eval { $part->body_str };
352 if ($ct =~ m!\btext/plain\b!i) {
353 # Try to assume UTF-8 because Alpine
354 # seems to do wacky things and set
356 $part->charset_set('UTF-8');
357 $s = eval { $part->body_str };
358 $s = $part->body if $@;
361 defined $s or return;
364 my $body = $part->body;
365 my @lines = split(/\n/, $body);
366 while (defined(my $l = shift @lines)) {
368 index_body($tg, \@orig, $doc) if @orig;
371 index_body($tg, \@quot, 0) if @quot;
375 index_body($tg, \@quot, 0) if @quot;
376 index_body($tg, \@orig, $doc) if @orig;
379 # populates smsg->references for smsg->to_doc_data
380 my $refs = parse_references($smsg);
381 my $data = $smsg->to_doc_data($blob);
382 foreach my $mid (@$mids) {
383 $tg->index_text($mid, 1, 'XM');
385 $doc->set_data($data);
386 if (my $altid = $self->{-altid}) {
387 foreach my $alt (@$altid) {
388 my $pfx = $alt->{xprefix};
389 foreach my $mid (@$mids) {
390 my $id = $alt->mid2alt($mid);
391 next unless defined $id;
392 $doc->add_boolean_term($pfx . $id);
397 push @values, $mids, $xpath, $data;
398 $skel->index_skeleton(\@values);
399 $doc_id = $self->{xdb}->add_document($doc);
401 $doc_id = link_and_save($self, $doc, $mids, $refs);
406 warn "failed to index message <".join('> <',@$mids).">: $@\n";
412 # returns deleted doc_id on success, undef on missing
414 my ($self, $mid) = @_;
415 my $db = $self->{xdb};
417 $mid = mid_clean($mid);
420 my ($head, $tail) = $self->find_doc_ids('Q' . $mid);
421 if ($head->equal($tail)) {
422 warn "cannot remove non-existent <$mid>\n";
424 for (; $head != $tail; $head->inc) {
425 my $docid = $head->get_docid;
426 $db->delete_document($docid);
431 warn "failed to remove message <$mid>: $@\n";
437 sub term_generator { # write-only
440 my $tg = $self->{term_generator};
443 $tg = Search::Xapian::TermGenerator->new;
444 $tg->set_stemmer($self->stemmer);
446 $self->{term_generator} = $tg;
449 # increments last_thread_id counter
450 # returns a 64-bit integer represented as a decimal string
453 my $db = $self->{xdb};
454 my $last_thread_id = int($db->get_metadata('last_thread_id') || 0);
456 $db->set_metadata('last_thread_id', ++$last_thread_id);
461 sub parse_references ($) {
463 my $mime = $smsg->{mime};
464 my $hdr = $mime->header_obj;
465 my $refs = references($hdr);
466 return $refs if scalar(@$refs) == 0;
468 # prevent circular references via References here:
469 my %mids = map { $_ => 1 } @{mids($hdr)};
471 foreach my $ref (@$refs) {
472 # FIXME: this is an archive-prevention vector like X-No-Archive
473 if (length($ref) > MAX_MID_SIZE) {
474 warn "References: <$ref> too long, ignoring\n";
479 $smsg->{references} = '<'.join('> <', @keep).'>' if @keep;
484 my ($self, $doc, $refs, $old_tid) = @_;
488 # first ref *should* be the thread root,
489 # but we can never trust clients to do the right thing
490 my $ref = shift @$refs;
491 $tid = resolve_mid_to_tid($self, $ref);
492 merge_threads($self, $tid, $old_tid) if defined $old_tid;
494 # the rest of the refs should point to this tid:
495 foreach $ref (@$refs) {
496 my $ptid = resolve_mid_to_tid($self, $ref);
497 merge_threads($self, $tid, $ptid);
500 $tid = defined $old_tid ? $old_tid : $self->next_thread_id;
502 $doc->add_boolean_term('G' . $tid);
507 my ($self, $doc, $mids, $refs) = @_;
508 my $db = $self->{xdb};
512 foreach my $mid (@$mids) {
513 $self->each_smsg_by_mid($mid, sub {
515 my $type = $cur->type;
516 my $cur_tid = $cur->thread_id;
517 $old_tid = $cur_tid unless defined $old_tid;
518 if ($type eq 'mail') {
519 # do not break existing mail messages,
520 # just merge the threads
521 merge_threads($self, $old_tid, $cur_tid);
524 if ($type ne 'ghost') {
525 die "<$mid> has a bad type: $type\n";
527 my $tid = link_doc($self, $doc, $refs, $old_tid);
528 $old_tid = $tid unless defined $old_tid;
529 $doc_id = $cur->{doc_id};
530 $self->{xdb}->replace_document($doc_id, $doc);
535 # not really important, but we return any vivified ghost docid, here:
536 return $doc_id if defined $doc_id;
537 link_doc($self, $doc, $refs, $old_tid);
538 $self->{xdb}->add_document($doc);
541 sub index_git_blob_id {
542 my ($doc, $pfx, $objid) = @_;
544 my $len = length($objid);
545 for (my $len = length($objid); $len >= 7; ) {
546 $doc->add_term($pfx.$objid);
547 $objid = substr($objid, 0, --$len);
552 my ($self, $mime) = @_;
553 my $mid = eval { mid_clean(mid_mime($mime)) };
554 $self->remove_message($mid) if defined $mid;
558 my ($self, $mime) = @_;
559 my $mid = mid_clean(mid_mime($mime));
560 my $mm = $self->{mm};
561 my $num = $mm->mid_insert($mid);
562 return $num if defined $num;
564 # fallback to num_for since filters like RubyLang set the number
569 my ($self, $mime) = @_;
570 $self->{mm}->mid_delete(mid_clean(mid_mime($mime)));
574 my ($self, $mime, $bytes, $blob) = @_;
575 my $num = $self->{mm}->num_for(mid_clean(mid_mime($mime)));
576 add_message($self, $mime, $bytes, $num, $blob);
580 my ($self, $mime) = @_;
581 $self->{mm}->mid_delete(mid_clean(mid_mime($mime)));
582 unindex_blob($self, $mime);
586 my ($self, $mime, $bytes, $blob) = @_;
587 my $num = index_mm($self, $mime);
588 add_message($self, $mime, $bytes, $num, $blob);
592 my ($self, $mime) = @_;
593 unindex_blob($self, $mime);
594 unindex_mm($self, $mime);
598 my ($git, $blob, $sizeref) = @_;
600 my $str = $git->cat_file($blob, $sizeref);
601 # fixup bugs from import:
602 $$str =~ s/\A[\r\n]*From [^\r\n]*\r?\n//s;
603 PublicInbox::MIME->new($str);
609 my ($self, $opts) = @_;
610 with_umask($self, sub { $self->_index_sync($opts) });
613 sub batch_adjust ($$$$) {
614 my ($max, $bytes, $batch_cb, $latest) = @_;
618 $batch_cb->($latest, 1);
624 my ($self, $log, $add_cb, $del_cb, $batch_cb) = @_;
625 my $hex = '[a-f0-9]';
626 my $h40 = $hex .'{40}';
627 my $addmsg = qr!^:000000 100644 \S+ ($h40) A\t${hex}{2}/${hex}{38}$!;
628 my $delmsg = qr!^:100644 000000 ($h40) \S+ D\t${hex}{2}/${hex}{38}$!;
629 my $git = $self->{git};
632 my $max = BATCH_BYTES;
635 while (defined($line = <$log>)) {
636 if ($line =~ /$addmsg/o) {
638 my $mime = do_cat_mail($git, $blob, \$bytes) or next;
639 batch_adjust(\$max, $bytes, $batch_cb, $latest);
640 $add_cb->($self, $mime, $bytes, $blob);
641 } elsif ($line =~ /$delmsg/o) {
643 my $mime = do_cat_mail($git, $blob, \$bytes) or next;
644 batch_adjust(\$max, $bytes, $batch_cb, $latest);
645 $del_cb->($self, $mime);
646 } elsif ($line =~ /^commit ($h40)/o) {
650 $batch_cb->($latest, 0);
655 $self->{mm} ||= eval {
656 require PublicInbox::Msgmap;
657 my $msgmap_path = $self->{msgmap_path};
658 if (defined $msgmap_path) { # v2
659 PublicInbox::Msgmap->new_file($msgmap_path, 1);
661 PublicInbox::Msgmap->new($self->{mainrepo}, 1);
667 my ($self, $range) = @_;
668 $self->{git}->popen(qw/log --reverse --no-notes --no-color
669 --raw -r --no-abbrev/, $range);
672 # indexes all unindexed messages
674 my ($self, $opts) = @_;
675 my $tip = $opts->{ref} || 'HEAD';
676 my $reindex = $opts->{reindex};
677 my ($mkey, $last_commit, $lx, $xlog);
678 $self->{git}->batch_prepare;
679 my $xdb = _xdb_acquire($self);
680 $xdb->begin_transaction;
683 $mkey = 'last_commit';
684 $last_commit = $xdb->get_metadata('last_commit');
688 $mkey = undef if $last_commit ne '';
690 $xdb->cancel_transaction;
691 $xdb = _xdb_release($self);
693 # ensure we leak no FDs to "git log"
694 my $range = $lx eq '' ? $tip : "$lx..$tip";
695 $xlog = _git_log($self, $range);
697 $xdb = _xdb_acquire($self);
698 $xdb->begin_transaction;
699 } while ($xdb->get_metadata('last_commit') ne $last_commit);
701 my $mm = _msgmap_init($self);
702 my $dbh = $mm->{dbh} if $mm;
705 my ($commit, $more) = @_;
707 $mm->last_commit($commit) if $commit;
711 $xdb->set_metadata($mkey, $commit) if $mkey && $commit;
712 $xdb->commit_transaction;
713 $xdb = _xdb_release($self);
715 # let another process do some work... <
718 $xdb = _xdb_acquire($self);
719 $xdb->begin_transaction;
721 $dbh->begin_work if $dbh;
727 my $lm = $mm->last_commit || '';
729 # Common case is the indexes are synced,
730 # we only need to run git-log once:
731 rlog($self, $xlog, *index_both, *unindex_both, $cb);
733 # Uncommon case, msgmap and xapian are out-of-sync
734 # do not care for performance (but git is fast :>)
735 # This happens if we have to reindex Xapian since
736 # msgmap is a frozen format and our Xapian format
738 my $r = $lm eq '' ? $tip : "$lm..$tip";
740 # first, ensure msgmap is up-to-date:
741 my $mkey_prev = $mkey;
742 $mkey = undef; # ignore xapian, for now
743 my $mlog = _git_log($self, $r);
745 rlog($self, $mlog, *index_mm, *unindex_mm, $cb);
746 $mm_only = $mlog = undef;
748 # now deal with Xapian
751 rlog($self, $xlog, *index_mm2, *unindex_mm2, $cb);
754 # user didn't install DBD::SQLite and DBI
755 rlog($self, $xlog, *add_message, *unindex_blob, $cb);
759 # this will create a ghost as necessary
760 sub resolve_mid_to_tid {
761 my ($self, $mid) = @_;
763 $self->each_smsg_by_mid($mid, sub {
765 my $cur_tid = $smsg->thread_id;
767 merge_threads($self, $tid, $cur_tid);
769 $tid = $smsg->thread_id;
773 return $tid if defined $tid;
775 $self->create_ghost($mid)->thread_id;
779 my ($self, $mid) = @_;
781 my $tid = $self->next_thread_id;
782 my $doc = Search::Xapian::Document->new;
783 $doc->add_boolean_term('Q' . $mid);
784 $doc->add_boolean_term('G' . $tid);
785 $doc->add_boolean_term('T' . 'ghost');
787 my $smsg = PublicInbox::SearchMsg->wrap($doc, $mid);
788 $self->{xdb}->add_document($doc);
794 my ($self, $winner_tid, $loser_tid) = @_;
795 return if $winner_tid == $loser_tid;
796 my $db = $self->{xdb};
798 my $batch_size = 1000; # don't let @ids grow too large to avoid OOM
800 my ($head, $tail) = $self->find_doc_ids('G' . $loser_tid);
801 return if $head == $tail;
803 for (; $head != $tail && @ids < $batch_size; $head->inc) {
804 push @ids, $head->get_docid;
806 foreach my $docid (@ids) {
807 my $doc = $db->get_document($docid);
808 $doc->remove_term('G' . $loser_tid);
809 $doc->add_boolean_term('G' . $winner_tid);
810 $db->replace_document($docid, $doc);
815 sub _read_git_config_perm {
817 my @cmd = qw(config);
818 if ($self->{version} == 2) {
819 push @cmd, "--file=$self->{mainrepo}/inbox-config";
821 my $fh = $self->{git}->popen(@cmd, 'core.sharedRepository');
824 chomp $perm if defined $perm;
828 sub _git_config_perm {
830 my $perm = scalar @_ ? $_[0] : _read_git_config_perm($self);
831 return PERM_GROUP if (!defined($perm) || $perm eq '');
832 return PERM_UMASK if ($perm eq 'umask');
833 return PERM_GROUP if ($perm eq 'group');
834 if ($perm =~ /\A(?:all|world|everybody)\z/) {
835 return PERM_EVERYBODY;
837 return PERM_GROUP if ($perm =~ /\A(?:true|yes|on|1)\z/);
838 return PERM_UMASK if ($perm =~ /\A(?:false|no|off|0)\z/);
841 return PERM_UMASK if ($i == PERM_UMASK);
842 return PERM_GROUP if ($i == OLD_PERM_GROUP);
843 return PERM_EVERYBODY if ($i == OLD_PERM_EVERYBODY);
845 if (($i & 0600) != 0600) {
846 die "core.sharedRepository mode invalid: ".
847 sprintf('%.3o', $i) . "\nOwner must have permissions\n";
853 my ($perm) = @_; # _git_config_perm return value
855 return umask if $rv == 0;
857 # set +x bit if +r or +w were set
858 $rv |= 0100 if ($rv & 0600);
859 $rv |= 0010 if ($rv & 0060);
860 $rv |= 0001 if ($rv & 0006);
865 my ($self, $cb) = @_;
866 my $old = umask $self->{umask};
867 my $rv = eval { $cb->() };
875 # order matters for unlocking
876 $_[0]->{xdb} = undef;
877 $_[0]->{lockfh} = undef;
880 # remote_* subs are only used by SearchIdxPart and SearchIdxSkeleton
883 print { $self->{w} } "commit\n" or die "failed to write commit: $!";
888 my $pid = delete $self->{pid} or die "no process to wait on\n";
889 my $w = delete $self->{w} or die "no pipe to write to\n";
890 print $w "close\n" or die "failed to write to pid:$pid: $!\n";
891 close $w or die "failed to close pipe for pid:$pid: $!\n";
892 waitpid($pid, 0) == $pid or die "remote process did not finish";
893 $? == 0 or die ref($self)." pid:$pid exited with: $?";