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);
327 my $lines = $mime->body_raw =~ tr!\n!\n!;
328 my @values = ($smsg->ts, $num, $bytes, $lines);
329 add_values($doc, \@values);
331 my $tg = $self->term_generator;
333 $tg->set_document($doc);
334 $tg->index_text($subj, 1, 'S') if $subj;
335 $tg->increase_termpos;
337 index_users($tg, $smsg);
339 msg_iter($mime, sub {
340 my ($part, $depth, @idx) = @{$_[0]};
341 my $ct = $part->content_type || 'text/plain';
342 my $fn = $part->filename;
343 if (defined $fn && $fn ne '') {
344 $tg->index_text($fn, 1, 'XFN');
347 return if $ct =~ m!\btext/x?html\b!i;
349 my $s = eval { $part->body_str };
351 if ($ct =~ m!\btext/plain\b!i) {
352 # Try to assume UTF-8 because Alpine
353 # seems to do wacky things and set
355 $part->charset_set('UTF-8');
356 $s = eval { $part->body_str };
357 $s = $part->body if $@;
360 defined $s or return;
363 my $body = $part->body;
364 my @lines = split(/\n/, $body);
365 while (defined(my $l = shift @lines)) {
367 index_body($tg, \@orig, $doc) if @orig;
370 index_body($tg, \@quot, 0) if @quot;
374 index_body($tg, \@quot, 0) if @quot;
375 index_body($tg, \@orig, $doc) if @orig;
378 # populates smsg->references for smsg->to_doc_data
379 my $refs = parse_references($smsg);
380 my $data = $smsg->to_doc_data($blob);
381 foreach my $mid (@$mids) {
382 $tg->index_text($mid, 1, 'XM');
384 $doc->set_data($data);
385 if (my $altid = $self->{-altid}) {
386 foreach my $alt (@$altid) {
387 my $pfx = $alt->{xprefix};
388 foreach my $mid (@$mids) {
389 my $id = $alt->mid2alt($mid);
390 next unless defined $id;
391 $doc->add_boolean_term($pfx . $id);
396 push @values, $mids, $xpath, $data;
397 $skel->index_skeleton(\@values);
398 $doc_id = $self->{xdb}->add_document($doc);
400 $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, $num, $xpath) = @_;
508 my $db = $self->{xdb};
511 $doc->add_boolean_term('XNUM' . $num) if defined $num;
512 $doc->add_boolean_term('XPATH' . $xpath) if defined $xpath;
514 foreach my $mid (@$mids) {
515 $self->each_smsg_by_mid($mid, sub {
517 my $type = $cur->type;
518 my $cur_tid = $cur->thread_id;
519 $old_tid = $cur_tid unless defined $old_tid;
520 if ($type eq 'mail') {
521 # do not break existing mail messages,
522 # just merge the threads
523 merge_threads($self, $old_tid, $cur_tid);
526 if ($type ne 'ghost') {
527 die "<$mid> has a bad type: $type\n";
529 my $tid = link_doc($self, $doc, $refs, $old_tid);
530 $old_tid = $tid unless defined $old_tid;
531 $doc_id = $cur->{doc_id};
532 $self->{xdb}->replace_document($doc_id, $doc);
537 # not really important, but we return any vivified ghost docid, here:
538 return $doc_id if defined $doc_id;
539 link_doc($self, $doc, $refs, $old_tid);
540 $self->{xdb}->add_document($doc);
543 sub index_git_blob_id {
544 my ($doc, $pfx, $objid) = @_;
546 my $len = length($objid);
547 for (my $len = length($objid); $len >= 7; ) {
548 $doc->add_term($pfx.$objid);
549 $objid = substr($objid, 0, --$len);
554 my ($self, $mime) = @_;
555 my $mid = eval { mid_clean(mid_mime($mime)) };
556 $self->remove_message($mid) if defined $mid;
560 my ($self, $mime) = @_;
561 my $mid = mid_clean(mid_mime($mime));
562 my $mm = $self->{mm};
563 my $num = $mm->mid_insert($mid);
564 return $num if defined $num;
566 # fallback to num_for since filters like RubyLang set the number
571 my ($self, $mime) = @_;
572 $self->{mm}->mid_delete(mid_clean(mid_mime($mime)));
576 my ($self, $mime, $bytes, $blob) = @_;
577 my $num = $self->{mm}->num_for(mid_clean(mid_mime($mime)));
578 add_message($self, $mime, $bytes, $num, $blob);
582 my ($self, $mime) = @_;
583 $self->{mm}->mid_delete(mid_clean(mid_mime($mime)));
584 unindex_blob($self, $mime);
588 my ($self, $mime, $bytes, $blob) = @_;
589 my $num = index_mm($self, $mime);
590 add_message($self, $mime, $bytes, $num, $blob);
594 my ($self, $mime) = @_;
595 unindex_blob($self, $mime);
596 unindex_mm($self, $mime);
600 my ($git, $blob, $sizeref) = @_;
602 my $str = $git->cat_file($blob, $sizeref);
603 # fixup bugs from import:
604 $$str =~ s/\A[\r\n]*From [^\r\n]*\r?\n//s;
605 PublicInbox::MIME->new($str);
611 my ($self, $opts) = @_;
612 with_umask($self, sub { $self->_index_sync($opts) });
615 sub batch_adjust ($$$$) {
616 my ($max, $bytes, $batch_cb, $latest) = @_;
620 $batch_cb->($latest, 1);
626 my ($self, $log, $add_cb, $del_cb, $batch_cb) = @_;
627 my $hex = '[a-f0-9]';
628 my $h40 = $hex .'{40}';
629 my $addmsg = qr!^:000000 100644 \S+ ($h40) A\t${hex}{2}/${hex}{38}$!;
630 my $delmsg = qr!^:100644 000000 ($h40) \S+ D\t${hex}{2}/${hex}{38}$!;
631 my $git = $self->{git};
634 my $max = BATCH_BYTES;
637 while (defined($line = <$log>)) {
638 if ($line =~ /$addmsg/o) {
640 my $mime = do_cat_mail($git, $blob, \$bytes) or next;
641 batch_adjust(\$max, $bytes, $batch_cb, $latest);
642 $add_cb->($self, $mime, $bytes, $blob);
643 } elsif ($line =~ /$delmsg/o) {
645 my $mime = do_cat_mail($git, $blob, \$bytes) or next;
646 batch_adjust(\$max, $bytes, $batch_cb, $latest);
647 $del_cb->($self, $mime);
648 } elsif ($line =~ /^commit ($h40)/o) {
652 $batch_cb->($latest, 0);
657 $self->{mm} ||= eval {
658 require PublicInbox::Msgmap;
659 my $msgmap_path = $self->{msgmap_path};
660 if (defined $msgmap_path) { # v2
661 PublicInbox::Msgmap->new_file($msgmap_path, 1);
663 PublicInbox::Msgmap->new($self->{mainrepo}, 1);
669 my ($self, $range) = @_;
670 $self->{git}->popen(qw/log --reverse --no-notes --no-color
671 --raw -r --no-abbrev/, $range);
674 # indexes all unindexed messages
676 my ($self, $opts) = @_;
677 my $tip = $opts->{ref} || 'HEAD';
678 my $reindex = $opts->{reindex};
679 my ($mkey, $last_commit, $lx, $xlog);
680 $self->{git}->batch_prepare;
681 my $xdb = _xdb_acquire($self);
682 $xdb->begin_transaction;
685 $mkey = 'last_commit';
686 $last_commit = $xdb->get_metadata('last_commit');
690 $mkey = undef if $last_commit ne '';
692 $xdb->cancel_transaction;
693 $xdb = _xdb_release($self);
695 # ensure we leak no FDs to "git log"
696 my $range = $lx eq '' ? $tip : "$lx..$tip";
697 $xlog = _git_log($self, $range);
699 $xdb = _xdb_acquire($self);
700 $xdb->begin_transaction;
701 } while ($xdb->get_metadata('last_commit') ne $last_commit);
703 my $mm = _msgmap_init($self);
704 my $dbh = $mm->{dbh} if $mm;
707 my ($commit, $more) = @_;
709 $mm->last_commit($commit) if $commit;
713 $xdb->set_metadata($mkey, $commit) if $mkey && $commit;
714 $xdb->commit_transaction;
715 $xdb = _xdb_release($self);
717 # let another process do some work... <
720 $xdb = _xdb_acquire($self);
721 $xdb->begin_transaction;
723 $dbh->begin_work if $dbh;
729 my $lm = $mm->last_commit || '';
731 # Common case is the indexes are synced,
732 # we only need to run git-log once:
733 rlog($self, $xlog, *index_both, *unindex_both, $cb);
735 # Uncommon case, msgmap and xapian are out-of-sync
736 # do not care for performance (but git is fast :>)
737 # This happens if we have to reindex Xapian since
738 # msgmap is a frozen format and our Xapian format
740 my $r = $lm eq '' ? $tip : "$lm..$tip";
742 # first, ensure msgmap is up-to-date:
743 my $mkey_prev = $mkey;
744 $mkey = undef; # ignore xapian, for now
745 my $mlog = _git_log($self, $r);
747 rlog($self, $mlog, *index_mm, *unindex_mm, $cb);
748 $mm_only = $mlog = undef;
750 # now deal with Xapian
753 rlog($self, $xlog, *index_mm2, *unindex_mm2, $cb);
756 # user didn't install DBD::SQLite and DBI
757 rlog($self, $xlog, *add_message, *unindex_blob, $cb);
761 # this will create a ghost as necessary
762 sub resolve_mid_to_tid {
763 my ($self, $mid) = @_;
765 $self->each_smsg_by_mid($mid, sub {
767 my $cur_tid = $smsg->thread_id;
769 merge_threads($self, $tid, $cur_tid);
771 $tid = $smsg->thread_id;
775 return $tid if defined $tid;
777 $self->create_ghost($mid)->thread_id;
781 my ($self, $mid) = @_;
783 my $tid = $self->next_thread_id;
784 my $doc = Search::Xapian::Document->new;
785 $doc->add_boolean_term('Q' . $mid);
786 $doc->add_boolean_term('G' . $tid);
787 $doc->add_boolean_term('T' . 'ghost');
789 my $smsg = PublicInbox::SearchMsg->wrap($doc, $mid);
790 $self->{xdb}->add_document($doc);
796 my ($self, $winner_tid, $loser_tid) = @_;
797 return if $winner_tid == $loser_tid;
798 my $db = $self->{xdb};
800 my $batch_size = 1000; # don't let @ids grow too large to avoid OOM
802 my ($head, $tail) = $self->find_doc_ids('G' . $loser_tid);
803 return if $head == $tail;
805 for (; $head != $tail && @ids < $batch_size; $head->inc) {
806 push @ids, $head->get_docid;
808 foreach my $docid (@ids) {
809 my $doc = $db->get_document($docid);
810 $doc->remove_term('G' . $loser_tid);
811 $doc->add_boolean_term('G' . $winner_tid);
812 $db->replace_document($docid, $doc);
817 sub _read_git_config_perm {
819 my @cmd = qw(config);
820 if ($self->{version} == 2) {
821 push @cmd, "--file=$self->{mainrepo}/inbox-config";
823 my $fh = $self->{git}->popen(@cmd, 'core.sharedRepository');
826 chomp $perm if defined $perm;
830 sub _git_config_perm {
832 my $perm = scalar @_ ? $_[0] : _read_git_config_perm($self);
833 return PERM_GROUP if (!defined($perm) || $perm eq '');
834 return PERM_UMASK if ($perm eq 'umask');
835 return PERM_GROUP if ($perm eq 'group');
836 if ($perm =~ /\A(?:all|world|everybody)\z/) {
837 return PERM_EVERYBODY;
839 return PERM_GROUP if ($perm =~ /\A(?:true|yes|on|1)\z/);
840 return PERM_UMASK if ($perm =~ /\A(?:false|no|off|0)\z/);
843 return PERM_UMASK if ($i == PERM_UMASK);
844 return PERM_GROUP if ($i == OLD_PERM_GROUP);
845 return PERM_EVERYBODY if ($i == OLD_PERM_EVERYBODY);
847 if (($i & 0600) != 0600) {
848 die "core.sharedRepository mode invalid: ".
849 sprintf('%.3o', $i) . "\nOwner must have permissions\n";
855 my ($perm) = @_; # _git_config_perm return value
857 return umask if $rv == 0;
859 # set +x bit if +r or +w were set
860 $rv |= 0100 if ($rv & 0600);
861 $rv |= 0010 if ($rv & 0060);
862 $rv |= 0001 if ($rv & 0006);
867 my ($self, $cb) = @_;
868 my $old = umask $self->{umask};
869 my $rv = eval { $cb->() };
877 # order matters for unlocking
878 $_[0]->{xdb} = undef;
879 $_[0]->{lockfh} = undef;
882 # remote_* subs are only used by SearchIdxPart and SearchIdxSkeleton
885 print { $self->{w} } "commit\n" or die "failed to write commit: $!";
890 my $pid = delete $self->{pid} or die "no process to wait on\n";
891 my $w = delete $self->{w} or die "no pipe to write to\n";
892 print $w "close\n" or die "failed to write to pid:$pid: $!\n";
893 close $w or die "failed to close pipe for pid:$pid: $!\n";
894 waitpid($pid, 0) == $pid or die "remote process did not finish";
895 $? == 0 or die ref($self)." pid:$pid exited with: $?";