--- deliantra/Deliantra-Client/DC/DB.pm	2007/04/16 21:06:37	1.6
+++ deliantra/Deliantra-Client/DC/DB.pm	2007/07/24 04:54:47	1.12
@@ -1,6 +1,6 @@
 =head1 NAME
 
-CFPlus::DB - async. database access for cfplus
+CFPlus::DB - async. database and filesystem access for cfplus
 
 =head1 SYNOPSIS
 
@@ -20,15 +20,27 @@
 use Carp ();
 use AnyEvent ();
 use Storable ();
+use Config;
 
 use CFPlus;
 
+our $DB_HOME = "$Crossfire::VARDIR/cfplus-$BerkeleyDB::db_version-$Config{archname}";
+
+sub path_of_res($) {
+   utf8::downgrade $_[0]; # bug in unpack "H*"
+   "$DB_HOME/res-data-" . unpack "H*", $_[0]
+}
+
 sub sync {
    # for debugging
    #CFPlus::DB::Server::req (sync => sub { });
    CFPlus::DB::Server::sync ();
 }
 
+sub exists($$$) {
+   CFPlus::DB::Server::req (exists => @_);
+}
+
 sub get($$$) {
    CFPlus::DB::Server::req (get => @_);
 }
@@ -37,6 +49,18 @@
    CFPlus::DB::Server::req (put => @_);
 }
 
+sub unlink($$) {
+   CFPlus::DB::Server::req (unlink => @_);
+}
+
+sub write_file($$$) {
+   CFPlus::DB::Server::req (write_file => @_);
+}
+
+sub prefetch_file($$$) {
+   CFPlus::DB::Server::req (prefetch_file => @_);
+}
+
 our $tilemap;
 
 sub get_tile_id_sync($) {
@@ -63,7 +87,6 @@
 use Fcntl;
 use BerkeleyDB;
 
-our $DB_HOME = "$Crossfire::VARDIR/cfplus";
 our $DB_ENV;
 our $DB_STATE;
 our %DB_TABLE;
@@ -178,6 +201,16 @@
    ()
 }
 
+sub do_exists {
+   my ($db, $key) = @_;
+
+   utf8::downgrade $key;
+   my $data;
+   (table $db)->db_get ($key, $data) == 0
+      ? length $data
+      : ()
+}
+
 sub do_get {
    my ($db, $key) = @_;
 
@@ -236,6 +269,34 @@
    die "maximum number of transaction retries reached - database problems?";
 }
 
+sub do_unlink {
+   unlink $_[0];
+}
+
+sub do_write_file {
+   my ($file, $data) = @_;
+
+   utf8::downgrade $file;
+   utf8::downgrade $data;
+   open my $fh, ">:raw", $file
+      or return;
+   print $fh $data;
+   close $fh;
+
+   1
+}
+
+sub do_prefetch_file {
+   my ($file, $size) = @_;
+
+   utf8::downgrade $file;
+   open my $fh, "<:raw", $file
+      or return;
+   sysread $fh, my $buf, $size;
+
+   1
+}
+
 sub run {
    ($FH, my $fh) = CFPlus::socketpipe;