-# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# fork()-friendly key-value store. Will be used for making
sub dbh {
my ($self, $lock) = @_;
- $self->{dbh} //= do {
+ $self->{dbh} // do {
my $f = $self->{filename};
$lock //= $self->lock_for_scope_fast;
my $dbh = DBI->connect("dbi:SQLite:dbname=$f", '', '', {
});
my $opt = $self->{opt} // {};
$dbh->do('PRAGMA synchronous = OFF') if !$opt->{fsync};
- if (my $s = $opt->{cache_size}) {
- $dbh->do("PRAGMA cache_size = $s");
- }
$dbh->do('PRAGMA journal_mode = '.
($opt->{journal_mode} // 'WAL'));
$dbh->do(<<'');
UNIQUE (k)
)
- $dbh;
+ $self->{dbh} = $dbh;
}
}
$base //= '';
my $f = $self->{filename} = "$dir/$base.sqlite3";
$self->{lock_path} = $opt->{lock_path} // "$dir/$base.flock";
- unless (-f $f) {
+ unless (-s $f) {
+ require PublicInbox::Syscall;
+ PublicInbox::Syscall::nodatacow_dir($dir); # for journal/shm/wal
open my $fh, '+>>', $f or die "failed to open $f: $!";
- PublicInbox::Spawn::nodatacow_fd(fileno($fh));
}
$self;
}
-sub index_values {
- my ($self) = @_;
- my $lock = $self->lock_for_scope_fast;
- $self->dbh($lock)->do('CREATE INDEX IF NOT EXISTS idx_v ON kv (v)');
-}
-
sub set_maybe {
my ($self, $key, $val, $lock) = @_;
$lock //= $self->lock_for_scope_fast;
map { $_->[0] } @{$self->dbh->selectall_arrayref($sql, undef, @pfx)};
}
-sub delete_by_val {
- my ($self, $val, $lock) = @_;
- $lock //= $self->lock_for_scope_fast;
- $self->{dbh}->prepare_cached(<<'')->execute($val) + 0;
-DELETE FROM kv WHERE v = ?
-
-}
-
-sub replace_values {
- my ($self, $oldval, $newval, $lock) = @_;
- $lock //= $self->lock_for_scope_fast;
- $self->{dbh}->prepare_cached(<<'')->execute($newval, $oldval) + 0;
-UPDATE kv SET v = ? WHERE v = ?
-
-}
-
sub set {
my ($self, $key, $val) = @_;
if (defined $val) {