[ViewVC] Diff of: cvs/deliantra/Deliantra-Client/DC/DB.pm

Comparing deliantra/Deliantra-Client/DC/DB.pm (file contents):
Revision 1.32 by root, Sat Jan 19 04:49:37 2008 UTC vs.
Revision 1.38 by root, Fri Jul 18 22:40:51 2008 UTC

…		…
15	package DC::DB;	15	package DC::DB;
16		16
17	use strict;	17	use strict;
18	use utf8;	18	use utf8;
19		19
		20	use File::Path ();
20	use Carp ();	21	use Carp ();
21	use Storable ();	22	use Storable ();
22	use Config;	23	use Config;
23	use BDB;	24	use BDB;
24		25
25	use DC;	26	use DC;
26		27
27	our $ODBDIR = "cfplus-" . BDB::VERSION . "-$Config{archname}";	28	our $ODBDIR = "cfplus-" . BDB::VERSION_MAJOR . "." . BDB::VERSION_MINOR . "-$Config{archname}";
28	our $DBDIR = "client-" . BDB::VERSION . "-$Config{archname}";	29	our $DBDIR = "client-" . BDB::VERSION_MAJOR . "." . BDB::VERSION_MINOR . "-$Config{archname}";
29	our $DB_HOME = "$Deliantra::VARDIR/$DBDIR";	30	our $DB_HOME = "$Deliantra::VARDIR/$DBDIR";
30		31
		32	unless (-d $DB_HOME) {
31	if (!-e $DB_HOME and -e "$Deliantra::VARDIR/$ODBDIR") {	33	if (-d "$Deliantra::VARDIR/$ODBDIR") {
32	rename "$Deliantra::VARDIR/$ODBDIR", $DB_HOME;	34	rename "$Deliantra::VARDIR/$ODBDIR", $DB_HOME;
33	print STDERR "INFO: moved old database from $Deliantra::VARDIR/$ODBDIR to $DB_HOME\n";	35	print STDERR "INFO: moved old database from $Deliantra::VARDIR/$ODBDIR to $DB_HOME\n";
34	}
35
36	if (!-e $DB_HOME and -e "$Deliantra::OLDDIR/$ODBDIR") {	36	} elsif (-d "$Deliantra::OLDDIR/$ODBDIR") {
37	rename "$Deliantra::OLDDIR/$DBDIR", $DB_HOME;	37	rename "$Deliantra::OLDDIR/$DBDIR", $DB_HOME;
38	print STDERR "INFO: moved old database from $Deliantra::OLDDIR/$ODBDIR to $DB_HOME\n";	38	print STDERR "INFO: moved old database from $Deliantra::OLDDIR/$ODBDIR to $DB_HOME\n";
		39	} else {
		40	File::Path::mkpath [$DB_HOME]
		41	or die "unable to create database directory $DB_HOME: $!";
		42	}
39	}	43	}
40		44
41	BDB::max_poll_time 0.03;	45	BDB::max_poll_time 0.03;
42	BDB::max_parallel 1;	46	BDB::max_parallel 1;
43		47
44	our $DB_ENV;	48	our $DB_ENV;
45	our $DB_STATE;	49	our $DB_STATE;
46	our %DB_TABLE;	50	our %DB_TABLE;
		51	our $TILE_SEQ;
47		52
48	sub open_db {	53	sub try_open_db {
49	mkdir $DB_HOME, 0777;	54	File::Path::mkpath [$DB_HOME];
50		55
51	$DB_ENV = db_env_create;	56	my $env = db_env_create;
52		57
53	$DB_ENV->set_errfile (\*STDERR);	58	$env->set_errfile (\*STDERR);
54	$DB_ENV->set_msgfile (\*STDERR);	59	$env->set_msgfile (\*STDERR);
55	$DB_ENV->set_verbose (-1, 1);	60	$env->set_verbose (-1, 1);
56		61
57	$DB_ENV->set_flags (BDB::AUTO_COMMIT \| BDB::LOG_AUTOREMOVE \| BDB::TXN_WRITE_NOSYNC);	62	$env->set_flags (BDB::AUTO_COMMIT \| BDB::LOG_AUTOREMOVE \| BDB::TXN_WRITE_NOSYNC);
58	$DB_ENV->set_cachesize (0, 2048 * 1024, 0);	63	$env->set_cachesize (0, 2048 * 1024, 0);
59		64
60	db_env_open $DB_ENV, $DB_HOME,	65	db_env_open $env, $DB_HOME,
61	BDB::CREATE \| BDB::REGISTER \| BDB::RECOVER \| BDB::INIT_MPOOL \| BDB::INIT_LOCK \| BDB::INIT_TXN,	66	BDB::CREATE \| BDB::REGISTER \| BDB::RECOVER \| BDB::INIT_MPOOL \| BDB::INIT_LOCK \| BDB::INIT_TXN,
62	0666;	67	0666;
63		68
64	$! and die "cannot open database environment $DB_HOME: " . BDB::strerror;	69	$! and die "cannot open database environment $DB_HOME: " . BDB::strerror;
		70
		71	$DB_ENV = $env;
65		72
66	1	73	1
67	}	74	}
68		75
69	sub table($) {	76	sub table($) {
…		…
84	}	91	}
85	}	92	}
86		93
87	#############################################################################	94	#############################################################################
88		95
89	unless (eval { open_db }) {	96	our $WATCHER;
90	warn "$@";#d#	97	our $SYNC;
91	eval { File::Path::rmtree $DB_HOME };
92	open_db;
93	}
94
95	our $WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
96
97	our $SYNC = EV::timer_ns 0, 60, sub {
98	$_[0]->stop;
99	db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
100	};
101
102	our $tilemap;	98	our $facemap;
103		99
104	sub exists($$$) {	100	sub exists($$$) {
105	my ($db, $key, $cb) = @_;	101	my ($db, $key, $cb) = @_;
106		102
107	my $data;	103	my $data;
…		…
149	my ($name, $cb) = @_;	145	my ($name, $cb) = @_;
150		146
151	my $table = table "facemap";	147	my $table = table "facemap";
152	my $id;	148	my $id;
153		149
154	db_get $table, undef, $name, $id, 0;	150	db_get $table, undef, $name => $id, 0;
155	return $cb->($id) unless $!;	151	$! or return $cb->($id);
156		152
157	for (1..100) {	153	unless ($TILE_SEQ) {
158	my $txn = $DB_ENV->txn_begin;	154	$TILE_SEQ = $table->sequence;
159	db_get $table, $txn, id => $id, 0;	155	$TILE_SEQ->initial_value (64);
		156	$TILE_SEQ->set_cachesize (0);
		157	db_sequence_open $TILE_SEQ, undef, "id", BDB::CREATE;
		158	}
160		159
161	$id = 64 if $id < 64;	160	db_sequence_get $TILE_SEQ, undef, 1, my $id;
162		161
163	++$id;	162	die "unable to allocate tile id: $!"
164		163	if $!;
165	db_put $table, $txn, id => $id, 0;
166	db_txn_finish $txn;
167
168	$SYNC->again unless $SYNC->is_active;
169
170	return $cb->($id) unless $!;
171
172	select undef, undef, undef, 0.01 * rand;
173	}	164
		165	db_put $table, undef, $name => $id, 0;
		166	$cb->($id);
174		167
175	die "maximum number of transaction retries reached - database problems?";
176	}	168	}
177		169
178	sub get_tile_id_sync($) {	170	sub get_tile_id_sync($) {
179	my ($name) = @_;	171	my ($name) = @_;
180		172
181	$tilemap->{$name} \|\|= do {	173	$facemap->{$name} \|\|= do {
182	my $id;	174	my $id;
183	do_get_tile_id $name, sub {	175	do_get_tile_id $name, sub {
184	$id = $_[0];	176	$id = $_[0];
185	};	177	};
186	BDB::flush;	178	BDB::flush;
…		…
220	sub logprint($$$) {	212	sub logprint($$$) {
221	DC::DB::Server::req (logprint => @_);	213	DC::DB::Server::req (logprint => @_);
222	}	214	}
223		215
224	#############################################################################	216	#############################################################################
225
226	# fetch the full face table first
227	unless ($tilemap) {
228	do_table facemap => sub {
229	$tilemap = $_[0];
230	delete $tilemap->{id};
231	my %maptile = reverse %$tilemap;#d#
232	if ((scalar keys %$tilemap) != (scalar keys %maptile)) {#d#
233	$tilemap = { };#d#
234	DC::error "FATAL: facemap is not a 1:1 mapping, please report this and delete your $DB_HOME directory!\n";#d#
235	}#d#
236	};
237	}
238		217
239	package DC::DB::Server;	218	package DC::DB::Server;
240		219
241	use strict;	220	use strict;
242		221
…		…
422		401
423	sub stop {	402	sub stop {
424	close $FH;	403	close $FH;
425	}	404	}
426		405
		406	package DC::DB;
		407
		408	sub nuke_db {
		409	File::Path::mkpath [$DB_HOME];
		410	eval { File::Path::rmtree $DB_HOME };
		411	}
		412
		413	sub open_db {
		414	unless (eval { try_open_db }) {
		415	warn "$@";#d#
		416	eval { nuke_db };
		417	try_open_db;
		418	}
		419
		420	# fetch the full face table first
		421	unless ($facemap) {
		422	do_table facemap => sub {
		423	$facemap = $_[0];
		424	delete $facemap->{id};
		425	my %maptile = reverse %$facemap;#d#
		426	if ((scalar keys %$facemap) != (scalar keys %maptile)) {#d#
		427	$facemap = { };#d#
		428	DC::error "FATAL: facemap is not a 1:1 mapping, please report this and delete your $DB_HOME directory!\n";#d#
		429	}#d#
		430	};
		431	}
		432
		433	$WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
		434	$SYNC = EV::timer_ns 0, 60, sub {
		435	$_[0]->stop;
		436	db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		437	};
		438	}
		439
		440	END {
		441	db_env_txn_checkpoint $DB_ENV, 0, 0, 0
		442	if $DB_ENV;
		443
		444	undef $TILE_SEQ;
		445	%DB_TABLE = ();
		446	undef $DB_ENV;
		447	}
		448
427	1;	449	1;
428		450
429	=back	451	=back
430		452
431	=head1 AUTHOR	453	=head1 AUTHOR

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Comparing deliantra/Deliantra-Client/DC/DB.pm (file contents): Revision 1.32 by root, Sat Jan 19 04:49:37 2008 UTC vs. Revision 1.38 by root, Fri Jul 18 22:40:51 2008 UTC

Diff Legend

Comparing deliantra/Deliantra-Client/DC/DB.pm (file contents):
Revision 1.32 by root, Sat Jan 19 04:49:37 2008 UTC vs.
Revision 1.38 by root, Fri Jul 18 22:40:51 2008 UTC