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Comparing deliantra/Deliantra-Client/DC/DB.pm (file contents):
Revision 1.3 by root, Fri Apr 6 21:53:56 2007 UTC vs.
Revision 1.12 by root, Tue Jul 24 04:54:47 2007 UTC

1=head1 NAME 1=head1 NAME
2 2
3CFPlus::DB - async. database access for cfplus 3CFPlus::DB - async. database and filesystem access for cfplus
4 4
5=head1 SYNOPSIS 5=head1 SYNOPSIS
6 6
7 use CFPlus::DB; 7 use CFPlus::DB;
8 8
… …
17use strict; 17use strict;
18use utf8; 18use utf8;
19 19
20use Carp (); 20use Carp ();
21use AnyEvent (); 21use AnyEvent ();
22use Storable (); # finally 22use Storable ();
23use Config;
23 24
24use CFPlus; 25use CFPlus;
26
27our $DB_HOME = "$Crossfire::VARDIR/cfplus-$BerkeleyDB::db_version-$Config{archname}";
28
29sub path_of_res($) {
30 utf8::downgrade $_[0]; # bug in unpack "H*"
31 "$DB_HOME/res-data-" . unpack "H*", $_[0]
32}
25 33
26sub sync { 34sub sync {
27 # for debugging 35 # for debugging
28 #CFPlus::DB::Server::req (sync => sub { }); 36 #CFPlus::DB::Server::req (sync => sub { });
29 CFPlus::DB::Server::sync (); 37 CFPlus::DB::Server::sync ();
30} 38}
31 39
40sub exists($$$) {
41 CFPlus::DB::Server::req (exists => @_);
42}
43
32sub get($$$) { 44sub get($$$) {
33 CFPlus::DB::Server::req (get => @_); 45 CFPlus::DB::Server::req (get => @_);
34} 46}
35 47
36sub put($$$$) { 48sub put($$$$) {
37 CFPlus::DB::Server::req (put => @_); 49 CFPlus::DB::Server::req (put => @_);
50}
51
52sub unlink($$) {
53 CFPlus::DB::Server::req (unlink => @_);
54}
55
56sub write_file($$$) {
57 CFPlus::DB::Server::req (write_file => @_);
58}
59
60sub prefetch_file($$$) {
61 CFPlus::DB::Server::req (prefetch_file => @_);
38} 62}
39 63
40our $tilemap; 64our $tilemap;
41 65
42sub get_tile_id_sync($) { 66sub get_tile_id_sync($) {
… …
61use strict; 85use strict;
62 86
63use Fcntl; 87use Fcntl;
64use BerkeleyDB; 88use BerkeleyDB;
65 89
66our $DB_HOME = "$Crossfire::VARDIR/cfplus";
67our $DB_ENV; 90our $DB_ENV;
68our $DB_STATE; 91our $DB_STATE;
69our %DB_TABLE; 92our %DB_TABLE;
70 93
71sub open_db { 94sub open_db {
… …
102 -Flags => DB_CREATE | DB_UPGRADE, 125 -Flags => DB_CREATE | DB_UPGRADE,
103 or die "unable to create/open database table $_[0]: $BerkeleyDB::Error" 126 or die "unable to create/open database table $_[0]: $BerkeleyDB::Error"
104 } 127 }
105} 128}
106 129
107our $SYNC_INTERVAL = 6; 130our $SYNC_INTERVAL = 60;
108 131
109our %CB; 132our %CB;
110our $FH; 133our $FH;
111our $ID = "aaa0"; 134our $ID = "aaa0";
112our ($fh_r_watcher, $fh_w_watcher); 135our ($fh_r_watcher, $fh_w_watcher);
… …
176sub do_sync { 199sub do_sync {
177 $DB_ENV->txn_checkpoint (0, 0, 0); 200 $DB_ENV->txn_checkpoint (0, 0, 0);
178 () 201 ()
179} 202}
180 203
204sub do_exists {
205 my ($db, $key) = @_;
206
207 utf8::downgrade $key;
208 my $data;
209 (table $db)->db_get ($key, $data) == 0
210 ? length $data
211 : ()
212}
213
181sub do_get { 214sub do_get {
182 my ($db, $key) = @_; 215 my ($db, $key) = @_;
183 216
217 utf8::downgrade $key;
184 my $data; 218 my $data;
185 (table $db)->db_get ($key, $data) == 0 219 (table $db)->db_get ($key, $data) == 0
186 ? $data 220 ? $data
187 : () 221 : ()
188} 222}
189 223
190sub do_put { 224sub do_put {
191 my ($db, $key, $data) = @_; 225 my ($db, $key, $data) = @_;
192 226
227 utf8::downgrade $key;
228 utf8::downgrade $data;
193 (table $db)->db_put ($key => $data) 229 (table $db)->db_put ($key => $data)
194} 230}
195 231
196sub do_table { 232sub do_table {
197 my ($db) = @_; 233 my ($db) = @_;
… …
231 } 267 }
232 268
233 die "maximum number of transaction retries reached - database problems?"; 269 die "maximum number of transaction retries reached - database problems?";
234} 270}
235 271
272sub do_unlink {
273 unlink $_[0];
274}
275
276sub do_write_file {
277 my ($file, $data) = @_;
278
279 utf8::downgrade $file;
280 utf8::downgrade $data;
281 open my $fh, ">:raw", $file
282 or return;
283 print $fh $data;
284 close $fh;
285
286 1
287}
288
289sub do_prefetch_file {
290 my ($file, $size) = @_;
291
292 utf8::downgrade $file;
293 open my $fh, "<:raw", $file
294 or return;
295 sysread $fh, my $buf, $size;
296
297 1
298}
299
236sub run { 300sub run {
237 ($FH, my $fh) = CFPlus::socketpipe; 301 ($FH, my $fh) = CFPlus::socketpipe;
238 302
239 my $oldfh = select $FH; $| = 1; select $oldfh; 303 my $oldfh = select $FH; $| = 1; select $oldfh;
240 my $oldfh = select $fh; $| = 1; select $oldfh; 304 my $oldfh = select $fh; $| = 1; select $oldfh;
… …
245 local $SIG{__DIE__}; 309 local $SIG{__DIE__};
246 eval { 310 eval {
247 close $FH; 311 close $FH;
248 312
249 unless (eval { open_db }) { 313 unless (eval { open_db }) {
250 File::Path::rmtree $DB_HOME; 314 eval { File::Path::rmtree $DB_HOME };
251 open_db; 315 open_db;
252 } 316 }
253 317
254 while () { 318 while () {
255 4 == read $fh, my $len, 4 319 4 == read $fh, my $len, 4
… …
289 $fh_r_watcher = AnyEvent->io (fh => $FH, poll => 'r', cb => \&fh_read); 353 $fh_r_watcher = AnyEvent->io (fh => $FH, poll => 'r', cb => \&fh_read);
290 354
291 sync_tick; 355 sync_tick;
292} 356}
293 357
358sub stop {
359 close $FH;
360}
361
2941; 3621;
295 363
296=back 364=back
297 365
298=head1 AUTHOR 366=head1 AUTHOR

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