$pr->("I: rethread culled $total ghosts\n") if $pr && $total;
}
+# used for cross-inbox search
+sub eidx_prep ($) {
+ my ($self) = @_;
+ $self->{-eidx_prep} //= do {
+ my $dbh = $self->dbh;
+ $dbh->do(<<'');
+INSERT OR IGNORE INTO counter (key) VALUES ('oidmap_num')
+
+ $dbh->do(<<'');
+INSERT OR IGNORE INTO counter (key) VALUES ('eidx_docid')
+
+ $dbh->do(<<'');
+CREATE TABLE IF NOT EXISTS oidmap (
+ num INTEGER NOT NULL, /* NNTP article number == IMAP UID */
+ oidbin VARBINARY, /* 20-byte SHA-1 or 32-byte SHA-256 */
+ UNIQUE (num),
+ UNIQUE (oidbin)
+)
+
+ $dbh->do(<<'');
+CREATE TABLE IF NOT EXISTS eidx_meta (
+ key VARCHAR(255) PRIMARY KEY,
+ val VARCHAR(255) NOT NULL
+)
+
+ $dbh;
+ };
+}
+
+sub eidx_meta { # requires transaction
+ my ($self, $key, $val) = @_;
+
+ my $sql = 'SELECT val FROM eidx_meta WHERE key = ? LIMIT 1';
+ my $dbh = $self->{dbh};
+ defined($val) or return $dbh->selectrow_array($sql, undef, $key);
+
+ my $prev = $dbh->selectrow_array($sql, undef, $key);
+ if (defined $prev) {
+ $sql = 'UPDATE eidx_meta SET val = ? WHERE key = ?';
+ $dbh->do($sql, undef, $val, $key);
+ } else {
+ $sql = 'INSERT INTO eidx_meta (key,val) VALUES (?,?)';
+ $dbh->do($sql, undef, $key, $val);
+ }
+ $prev;
+}
+
+sub eidx_max {
+ my ($self) = @_;
+ get_counter($self->{dbh}, 'eidx_docid');
+}
+
+sub oid2num {
+ my ($self, $oidhex) = @_;
+ my $dbh = eidx_prep($self);
+ my $sth = $dbh->prepare_cached(<<'', undef, 1);
+SELECT num FROM oidmap WHERE oidbin = ?
+
+ $sth->bind_param(1, pack('H*', $oidhex), SQL_BLOB);
+ $sth->execute;
+ $sth->fetchrow_array;
+}
+
+sub oid_add {
+ my ($self, $oidhex) = @_;
+ my $dbh = eidx_prep($self);
+ my $num = adj_counter($self, 'oidmap_num', '+');
+ my $sth = $dbh->prepare_cached(<<'');
+INSERT INTO oidmap (num, oidbin) VALUES (?,?)
+
+ $sth->bind_param(1, $num);
+ $sth->bind_param(2, pack('H*', $oidhex), SQL_BLOB);
+ $sth->execute;
+ $num;
+}
+
1;