-# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# temporary stack for public-inbox-index
use v5.10.1;
use strict;
use Fcntl qw(:seek);
-use constant FMT => eval { pack('Q', 1) } ? 'A1QQH*' : 'A1IIH*';
+use constant PACK_FMT => eval { pack('Q', 1) } ? 'A1QQH*H*' : 'A1IIH*H*';
# start off in write-only mode
sub new {
open(my $io, '+>', undef) or die "open: $!";
+ # latest_cmt is still useful when the newest revision is a `d'(elete),
+ # otherwise we favor $sync->{latest_cmt} for checkpoints and {quit}
bless { wr => $io, latest_cmt => $_[1] }, __PACKAGE__
}
# file_char = [d|m]
sub push_rec {
- my ($self, $file_char, $at, $ct, $blob_oid) = @_;
- my $rec = pack(FMT, $file_char, $at, $ct, $blob_oid);
- $self->{rec_size} //= length($rec);
+ my ($self, $file_char, $at, $ct, $blob_oid, $cmt_oid) = @_;
+ my $rec = pack(PACK_FMT, $file_char, $at, $ct, $blob_oid, $cmt_oid);
+ $self->{unpack_fmt} // do {
+ my $len = length($cmt_oid);
+ my $fmt = PACK_FMT;
+ $fmt =~ s/H\*/H$len/g;
+ $self->{rec_size} = length($rec);
+ $self->{unpack_fmt} = $fmt;
+ };
print { $self->{wr} } $rec or die "print: $!";
$self->{tot_size} += length($rec);
}
my $r = read($io, my $buf, $sz);
defined($r) or die "read: $!";
$r == $sz or die "read($r != $sz)";
- unpack(FMT, $buf);
+ unpack($self->{unpack_fmt}, $buf);
}
1;