1 | =head1 NAME |
1 | =head1 NAME |
2 | |
2 | |
3 | CFPlus::DB - async. database access for cfplus |
3 | DC::DB - async. database and filesystem access for deliantra |
4 | |
4 | |
5 | =head1 SYNOPSIS |
5 | =head1 SYNOPSIS |
6 | |
6 | |
7 | use CFPlus::DB; |
7 | use DC::DB; |
8 | |
8 | |
9 | =head1 DESCRIPTION |
9 | =head1 DESCRIPTION |
10 | |
10 | |
11 | =over 4 |
11 | =over 4 |
12 | |
12 | |
13 | =cut |
13 | =cut |
14 | |
14 | |
15 | package CFPlus::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 AnyEvent (); |
|
|
22 | use Storable (); # finally |
22 | use Storable (); |
|
|
23 | use Config; |
|
|
24 | use BDB; |
23 | |
25 | |
24 | use CFPlus; |
26 | use DC; |
25 | |
27 | |
26 | sub sync { |
28 | our $ODBDIR = "cfplus-" . BDB::VERSION_MAJOR . "." . BDB::VERSION_MINOR . "-$Config{archname}"; |
27 | # for debugging |
29 | our $DBDIR = "client-" . BDB::VERSION_MAJOR . "." . BDB::VERSION_MINOR . "-$Config{archname}"; |
28 | #CFPlus::DB::Server::req (sync => sub { }); |
30 | our $DB_HOME = "$Deliantra::VARDIR/$DBDIR"; |
29 | CFPlus::DB::Server::sync (); |
|
|
30 | } |
|
|
31 | |
31 | |
32 | sub get($$$) { |
32 | unless (-d $DB_HOME) { |
33 | CFPlus::DB::Server::req (get => @_); |
33 | if (-d "$Deliantra::VARDIR/$ODBDIR") { |
34 | } |
34 | rename "$Deliantra::VARDIR/$ODBDIR", $DB_HOME; |
35 | |
35 | print STDERR "INFO: moved old database from $Deliantra::VARDIR/$ODBDIR to $DB_HOME\n"; |
36 | sub put($$$$) { |
36 | } elsif (-d "$Deliantra::OLDDIR/$ODBDIR") { |
37 | CFPlus::DB::Server::req (put => @_); |
37 | rename "$Deliantra::OLDDIR/$DBDIR", $DB_HOME; |
38 | } |
38 | print STDERR "INFO: moved old database from $Deliantra::OLDDIR/$ODBDIR to $DB_HOME\n"; |
39 | |
39 | } else { |
40 | our $tilemap; |
40 | File::Path::mkpath [$DB_HOME] |
41 | |
41 | or die "unable to create database directory $DB_HOME: $!"; |
42 | sub get_tile_id_sync($) { |
|
|
43 | my ($hash) = @_; |
|
|
44 | |
|
|
45 | # fetch the full face table first |
|
|
46 | unless ($tilemap) { |
|
|
47 | CFPlus::DB::Server::req (table => facemap => sub { $tilemap = $_[0] }); |
|
|
48 | sync; |
|
|
49 | } |
42 | } |
50 | |
|
|
51 | $tilemap->{$hash} ||= do { |
|
|
52 | my $id; |
|
|
53 | CFPlus::DB::Server::req (get_tile_id => $hash, sub { $id = $_[0] }); |
|
|
54 | sync; |
|
|
55 | $id |
|
|
56 | } |
|
|
57 | } |
43 | } |
58 | |
44 | |
59 | package CFPlus::DB::Server; |
45 | BDB::max_poll_time 0.03; |
|
|
46 | BDB::max_parallel 1; |
60 | |
47 | |
61 | use strict; |
|
|
62 | |
|
|
63 | use Fcntl; |
|
|
64 | use BerkeleyDB; |
|
|
65 | |
|
|
66 | our $DB_HOME = "$Crossfire::VARDIR/cfplus"; |
|
|
67 | our $DB_ENV; |
48 | our $DB_ENV; |
68 | our $DB_STATE; |
49 | our $DB_STATE; |
69 | our %DB_TABLE; |
50 | our %DB_TABLE; |
|
|
51 | our $TILE_SEQ; |
70 | |
52 | |
71 | sub open_db { |
53 | sub try_open_db { |
72 | mkdir $DB_HOME, 0777; |
54 | File::Path::mkpath [$DB_HOME]; |
73 | my $recover = $BerkeleyDB::db_version >= 4.4 |
55 | |
74 | ? eval "DB_REGISTER | DB_RECOVER" |
56 | my $env = db_env_create; |
|
|
57 | |
|
|
58 | $env->set_errfile (\*STDERR); |
|
|
59 | $env->set_msgfile (\*STDERR); |
|
|
60 | $env->set_verbose (-1, 1); |
|
|
61 | |
|
|
62 | $env->set_flags (BDB::AUTO_COMMIT | BDB::LOG_AUTOREMOVE | BDB::TXN_WRITE_NOSYNC); |
|
|
63 | $env->set_cachesize (0, 2048 * 1024, 0); |
|
|
64 | |
|
|
65 | db_env_open $env, $DB_HOME, |
|
|
66 | BDB::CREATE | BDB::REGISTER | BDB::RECOVER | BDB::INIT_MPOOL | BDB::INIT_LOCK | BDB::INIT_TXN, |
75 | : 0; |
67 | 0666; |
76 | |
68 | |
77 | $DB_ENV = new BerkeleyDB::Env |
69 | $! and die "cannot open database environment $DB_HOME: " . BDB::strerror; |
78 | -Home => $DB_HOME, |
70 | |
79 | -Cachesize => 8_000_000, |
71 | $DB_ENV = $env; |
80 | -ErrFile => "$DB_HOME/errorlog.txt", |
|
|
81 | # -ErrPrefix => "DATABASE", |
|
|
82 | -Verbose => 1, |
|
|
83 | -Flags => DB_CREATE | DB_RECOVER | DB_INIT_MPOOL | DB_INIT_LOCK | DB_INIT_TXN | $recover, |
|
|
84 | -SetFlags => DB_AUTO_COMMIT | DB_LOG_AUTOREMOVE, |
|
|
85 | or die "unable to create/open database home $DB_HOME: $BerkeleyDB::Error"; |
|
|
86 | |
72 | |
87 | 1 |
73 | 1 |
88 | } |
74 | } |
89 | |
75 | |
90 | sub table($) { |
76 | sub table($) { |
91 | $DB_TABLE{$_[0]} ||= do { |
77 | $DB_TABLE{$_[0]} ||= do { |
92 | my ($table) = @_; |
78 | my ($table) = @_; |
93 | |
79 | |
94 | $table =~ s/([^a-zA-Z0-9_\-])/sprintf "=%x=", ord $1/ge; |
80 | $table =~ s/([^a-zA-Z0-9_\-])/sprintf "=%x=", ord $1/ge; |
95 | |
81 | |
96 | new BerkeleyDB::Btree |
82 | my $db = db_create $DB_ENV; |
97 | -Env => $DB_ENV, |
83 | $db->set_flags (BDB::CHKSUM); |
98 | -Filename => $table, |
84 | |
99 | # -Filename => "database", |
85 | db_open $db, undef, $table, undef, BDB::BTREE, |
100 | # -Subname => $table, |
86 | BDB::AUTO_COMMIT | BDB::CREATE | BDB::READ_UNCOMMITTED, 0666; |
101 | -Property => DB_CHKSUM, |
87 | |
102 | -Flags => DB_CREATE | DB_UPGRADE, |
88 | $! and "unable to open/create database table $_[0]: ". BDB::strerror; |
103 | or die "unable to create/open database table $_[0]: $BerkeleyDB::Error" |
89 | |
|
|
90 | $db |
|
|
91 | } |
|
|
92 | } |
|
|
93 | |
|
|
94 | ############################################################################# |
|
|
95 | |
|
|
96 | our $WATCHER; |
|
|
97 | our $SYNC; |
|
|
98 | our $facemap; |
|
|
99 | |
|
|
100 | sub exists($$$) { |
|
|
101 | my ($db, $key, $cb) = @_; |
|
|
102 | |
|
|
103 | my $data; |
|
|
104 | db_get table $db, undef, $key, $data, 0, sub { |
|
|
105 | $cb->($! ? () : length $data); |
104 | } |
106 | }; |
105 | } |
107 | } |
106 | |
108 | |
107 | our $SYNC_INTERVAL = 6; |
109 | sub get($$$) { |
|
|
110 | my ($db, $key, $cb) = @_; |
|
|
111 | |
|
|
112 | my $data; |
|
|
113 | db_get table $db, undef, $key, $data, 0, sub { |
|
|
114 | $cb->($! ? () : $data); |
|
|
115 | }; |
|
|
116 | } |
|
|
117 | |
|
|
118 | sub put($$$$) { |
|
|
119 | my ($db, $key, $data, $cb) = @_; |
|
|
120 | |
|
|
121 | db_put table $db, undef, $key, $data, 0, sub { |
|
|
122 | $cb->($!); |
|
|
123 | $SYNC->again unless $SYNC->is_active; |
|
|
124 | }; |
|
|
125 | } |
|
|
126 | |
|
|
127 | sub do_table { |
|
|
128 | my ($db, $cb) = @_; |
|
|
129 | |
|
|
130 | $db = table $db; |
|
|
131 | |
|
|
132 | my $cursor = $db->cursor; |
|
|
133 | my %kv; |
|
|
134 | |
|
|
135 | for (;;) { |
|
|
136 | db_c_get $cursor, my $k, my $v, BDB::NEXT; |
|
|
137 | last if $!; |
|
|
138 | $kv{$k} = $v; |
|
|
139 | } |
|
|
140 | |
|
|
141 | $cb->(\%kv); |
|
|
142 | } |
|
|
143 | |
|
|
144 | sub do_get_tile_id { |
|
|
145 | my ($name, $cb) = @_; |
|
|
146 | |
|
|
147 | my $table = table "facemap"; |
|
|
148 | my $id; |
|
|
149 | |
|
|
150 | db_get $table, undef, $name => $id, 0; |
|
|
151 | $! or return $cb->($id); |
|
|
152 | |
|
|
153 | unless ($TILE_SEQ) { |
|
|
154 | $TILE_SEQ = $table->sequence; |
|
|
155 | $TILE_SEQ->initial_value (64); |
|
|
156 | $TILE_SEQ->set_cachesize (0); |
|
|
157 | db_sequence_open $TILE_SEQ, undef, "id", BDB::CREATE; |
|
|
158 | } |
|
|
159 | |
|
|
160 | db_sequence_get $TILE_SEQ, undef, 1, my $id; |
|
|
161 | |
|
|
162 | die "unable to allocate tile id: $!" |
|
|
163 | if $!; |
|
|
164 | |
|
|
165 | db_put $table, undef, $name => $id, 0; |
|
|
166 | $cb->($id); |
|
|
167 | |
|
|
168 | } |
|
|
169 | |
|
|
170 | sub get_tile_id_sync($) { |
|
|
171 | my ($name) = @_; |
|
|
172 | |
|
|
173 | $facemap->{$name} ||= do { |
|
|
174 | my $id; |
|
|
175 | do_get_tile_id $name, sub { |
|
|
176 | $id = $_[0]; |
|
|
177 | }; |
|
|
178 | BDB::flush; |
|
|
179 | $id |
|
|
180 | } |
|
|
181 | } |
|
|
182 | |
|
|
183 | ############################################################################# |
|
|
184 | |
|
|
185 | sub path_of_res($) { |
|
|
186 | utf8::downgrade $_[0]; # bug in unpack "H*" |
|
|
187 | "$DB_HOME/res-data-" . unpack "H*", $_[0] |
|
|
188 | } |
|
|
189 | |
|
|
190 | sub sync { |
|
|
191 | # for debugging |
|
|
192 | #DC::DB::Server::req (sync => sub { }); |
|
|
193 | DC::DB::Server::sync (); |
|
|
194 | } |
|
|
195 | |
|
|
196 | sub unlink($$) { |
|
|
197 | DC::DB::Server::req (unlink => @_); |
|
|
198 | } |
|
|
199 | |
|
|
200 | sub read_file($$) { |
|
|
201 | DC::DB::Server::req (read_file => @_); |
|
|
202 | } |
|
|
203 | |
|
|
204 | sub write_file($$$) { |
|
|
205 | DC::DB::Server::req (write_file => @_); |
|
|
206 | } |
|
|
207 | |
|
|
208 | sub prefetch_file($$$) { |
|
|
209 | DC::DB::Server::req (prefetch_file => @_); |
|
|
210 | } |
|
|
211 | |
|
|
212 | sub logprint($$$) { |
|
|
213 | DC::DB::Server::req (logprint => @_); |
|
|
214 | } |
|
|
215 | |
|
|
216 | ############################################################################# |
|
|
217 | |
|
|
218 | package DC::DB::Server; |
|
|
219 | |
|
|
220 | use strict; |
|
|
221 | |
|
|
222 | use EV (); |
|
|
223 | use Fcntl; |
108 | |
224 | |
109 | our %CB; |
225 | our %CB; |
110 | our $FH; |
226 | our $FH; |
111 | our $ID = "aaa0"; |
227 | our $ID = "aaa0"; |
112 | our ($fh_r_watcher, $fh_w_watcher); |
228 | our ($fh_r_watcher, $fh_w_watcher); |
… | |
… | |
117 | sub fh_write { |
233 | sub fh_write { |
118 | my $len = syswrite $FH, $write_buf; |
234 | my $len = syswrite $FH, $write_buf; |
119 | |
235 | |
120 | substr $write_buf, 0, $len, ""; |
236 | substr $write_buf, 0, $len, ""; |
121 | |
237 | |
122 | undef $fh_w_watcher |
238 | $fh_w_watcher->stop |
123 | unless length $write_buf; |
239 | unless length $write_buf; |
124 | } |
240 | } |
125 | |
241 | |
126 | sub fh_read { |
242 | sub fh_read { |
127 | my $status = sysread $FH, $read_buf, 16384, length $read_buf; |
243 | my $status = sysread $FH, $read_buf, 16384, length $read_buf; |
… | |
… | |
163 | |
279 | |
164 | my $id = ++$ID; |
280 | my $id = ++$ID; |
165 | $write_buf .= pack "N/a*", Storable::freeze [$id, $type, @args]; |
281 | $write_buf .= pack "N/a*", Storable::freeze [$id, $type, @args]; |
166 | $CB{$id} = $cb; |
282 | $CB{$id} = $cb; |
167 | |
283 | |
168 | $fh_w_watcher = AnyEvent->io (fh => $FH, poll => 'w', cb => \&fh_write); |
284 | $fh_w_watcher->start; |
169 | } |
285 | } |
170 | |
286 | |
171 | sub sync_tick { |
287 | sub do_unlink { |
172 | req "sync", sub { }; |
288 | unlink $_[0]; |
173 | $sync_timer = AnyEvent->timer (after => $SYNC_INTERVAL, cb => \&sync_tick); |
|
|
174 | } |
289 | } |
175 | |
290 | |
176 | sub do_sync { |
|
|
177 | $DB_ENV->txn_checkpoint (0, 0, 0); |
|
|
178 | () |
|
|
179 | } |
|
|
180 | |
|
|
181 | sub do_get { |
|
|
182 | my ($db, $key) = @_; |
|
|
183 | |
|
|
184 | my $data; |
|
|
185 | (table $db)->db_get ($key, $data) == 0 |
|
|
186 | ? $data |
|
|
187 | : () |
|
|
188 | } |
|
|
189 | |
|
|
190 | sub do_put { |
|
|
191 | my ($db, $key, $data) = @_; |
|
|
192 | |
|
|
193 | (table $db)->db_put ($key => $data) |
|
|
194 | } |
|
|
195 | |
|
|
196 | sub do_table { |
291 | sub do_read_file { |
197 | my ($db) = @_; |
|
|
198 | |
|
|
199 | $db = table $db; |
|
|
200 | |
|
|
201 | my $cursor = $db->db_cursor; |
|
|
202 | my %kv; |
|
|
203 | my ($k, $v); |
|
|
204 | $kv{$k} = $v while $cursor->c_get ($k, $v, BerkeleyDB::DB_NEXT) == 0; |
|
|
205 | |
|
|
206 | \%kv |
|
|
207 | } |
|
|
208 | |
|
|
209 | sub do_get_tile_id { |
|
|
210 | my ($hash) = @_; |
292 | my ($path) = @_; |
211 | |
293 | |
212 | my $id; |
294 | utf8::downgrade $path; |
213 | my $table = table "facemap"; |
295 | open my $fh, "<:raw", $path |
|
|
296 | or return; |
|
|
297 | sysread $fh, my $buf, -s $fh; |
214 | |
298 | |
215 | return $id |
299 | $buf |
216 | if $table->db_get ($hash, $id) == 0; |
300 | } |
217 | |
301 | |
218 | for (1..100) { |
302 | sub do_write_file { |
219 | my $txn = $DB_ENV->txn_begin; |
303 | my ($path, $data) = @_; |
220 | my $status = $table->db_get (id => $id); |
|
|
221 | if ($status == 0 || $status == BerkeleyDB::DB_NOTFOUND) { |
|
|
222 | $id = ($id || 64) + 1; |
|
|
223 | if ($table->db_put (id => $id) == 0 |
|
|
224 | && $table->db_put ($hash => $id) == 0) { |
|
|
225 | $txn->txn_commit; |
|
|
226 | |
304 | |
227 | return $id; |
305 | utf8::downgrade $path; |
228 | } |
306 | utf8::downgrade $data; |
|
|
307 | open my $fh, ">:raw", $path |
|
|
308 | or return; |
|
|
309 | syswrite $fh, $data; |
|
|
310 | close $fh; |
|
|
311 | |
|
|
312 | 1 |
|
|
313 | } |
|
|
314 | |
|
|
315 | sub do_prefetch_file { |
|
|
316 | my ($path, $size) = @_; |
|
|
317 | |
|
|
318 | utf8::downgrade $path; |
|
|
319 | open my $fh, "<:raw", $path |
|
|
320 | or return; |
|
|
321 | sysread $fh, my $buf, $size; |
|
|
322 | |
|
|
323 | 1 |
|
|
324 | } |
|
|
325 | |
|
|
326 | our %LOG_FH; |
|
|
327 | |
|
|
328 | sub do_logprint { |
|
|
329 | my ($path, $line) = @_; |
|
|
330 | |
|
|
331 | $LOG_FH{$path} ||= do { |
|
|
332 | open my $fh, ">>:utf8", $path |
|
|
333 | or warn "Couldn't open logfile $path: $!"; |
|
|
334 | |
|
|
335 | $fh->autoflush (1); |
|
|
336 | |
229 | } |
337 | $fh |
230 | $txn->txn_abort; |
|
|
231 | } |
338 | }; |
232 | |
339 | |
233 | die "maximum number of transaction retries reached - database problems?"; |
340 | my ($sec, $min, $hour, $mday, $mon, $year) = localtime time; |
|
|
341 | |
|
|
342 | my $ts = sprintf "%04d-%02d-%02d %02d:%02d:%02d", |
|
|
343 | $year + 1900, $mon + 1, $mday, $hour, $min, $sec; |
|
|
344 | |
|
|
345 | print { $LOG_FH{$path} } "$ts $line\n" |
234 | } |
346 | } |
235 | |
347 | |
236 | sub run { |
348 | sub run { |
237 | ($FH, my $fh) = CFPlus::socketpipe; |
349 | ($FH, my $fh) = DC::socketpipe; |
238 | |
350 | |
239 | my $oldfh = select $FH; $| = 1; select $oldfh; |
351 | my $oldfh = select $FH; $| = 1; select $oldfh; |
240 | my $oldfh = select $fh; $| = 1; select $oldfh; |
352 | my $oldfh = select $fh; $| = 1; select $oldfh; |
241 | |
353 | |
242 | my $pid = fork; |
354 | my $pid = fork; |
243 | |
355 | |
244 | if (defined $pid && !$pid) { |
356 | if (defined $pid && !$pid) { |
|
|
357 | local $SIG{QUIT} = "IGNORE"; |
245 | local $SIG{__DIE__}; |
358 | local $SIG{__DIE__}; |
|
|
359 | local $SIG{__WARN__}; |
246 | eval { |
360 | eval { |
247 | close $FH; |
361 | close $FH; |
248 | |
|
|
249 | unless (eval { open_db }) { |
|
|
250 | File::Path::rmtree $DB_HOME; |
|
|
251 | open_db; |
|
|
252 | } |
|
|
253 | |
362 | |
254 | while () { |
363 | while () { |
255 | 4 == read $fh, my $len, 4 |
364 | 4 == read $fh, my $len, 4 |
256 | or last; |
365 | or last; |
257 | $len = unpack "N", $len; |
366 | $len = unpack "N", $len; |
… | |
… | |
259 | or die "unexpected eof while reading request"; |
368 | or die "unexpected eof while reading request"; |
260 | |
369 | |
261 | $req = Storable::thaw $req; |
370 | $req = Storable::thaw $req; |
262 | |
371 | |
263 | my ($id, $type, @args) = @$req; |
372 | my ($id, $type, @args) = @$req; |
264 | my $cb = CFPlus::DB::Server->can ("do_$type") |
373 | my $cb = DC::DB::Server->can ("do_$type") |
265 | or die "$type: unknown database request type\n"; |
374 | or die "$type: unknown database request type\n"; |
266 | my $res = pack "N/a*", Storable::freeze [$id, $cb->(@args)]; |
375 | my $res = pack "N/a*", Storable::freeze [$id, $cb->(@args)]; |
267 | (syswrite $fh, $res) == length $res |
376 | (syswrite $fh, $res) == length $res |
268 | or die; |
377 | or die "DB::write: $!"; |
269 | } |
378 | } |
270 | }; |
379 | }; |
271 | |
380 | |
272 | my $error = $@; |
381 | my $error = $@; |
273 | |
382 | |
274 | eval { |
383 | eval { |
275 | undef %DB_TABLE; |
|
|
276 | undef $DB_ENV; |
|
|
277 | |
|
|
278 | Storable::store_fd [die => $error], $fh; |
384 | Storable::store_fd [die => $error], $fh; |
279 | }; |
385 | }; |
280 | |
386 | |
|
|
387 | warn $error |
|
|
388 | if $error; |
|
|
389 | |
281 | CFPlus::_exit 0; |
390 | DC::_exit 0; |
282 | } |
391 | } |
283 | |
392 | |
284 | close $fh; |
393 | close $fh; |
285 | CFPlus::fh_nonblocking $FH, 1; |
394 | DC::fh_nonblocking $FH, 1; |
286 | |
395 | |
287 | $CB{die} = sub { die shift }; |
396 | $CB{die} = sub { die shift }; |
288 | |
397 | |
289 | $fh_r_watcher = AnyEvent->io (fh => $FH, poll => 'r', cb => \&fh_read); |
398 | $fh_r_watcher = EV::io $FH, EV::READ , \&fh_read; |
|
|
399 | $fh_w_watcher = EV::io $FH, EV::WRITE, \&fh_write; |
|
|
400 | } |
290 | |
401 | |
291 | sync_tick; |
402 | sub stop { |
|
|
403 | close $FH; |
|
|
404 | } |
|
|
405 | |
|
|
406 | package DC::DB; |
|
|
407 | |
|
|
408 | sub nuke_db { |
|
|
409 | File::Path::mkpath [$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; |
292 | } |
447 | } |
293 | |
448 | |
294 | 1; |
449 | 1; |
295 | |
450 | |
296 | =back |
451 | =back |