1 | =head1 NAME |
1 | =head1 NAME |
2 | |
2 | |
3 | CFPlus::DB - async. database access for cfplus |
3 | CFPlus::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 | |
… | |
… | |
17 | use strict; |
17 | use strict; |
18 | use utf8; |
18 | use utf8; |
19 | |
19 | |
20 | use Carp (); |
20 | use Carp (); |
21 | use AnyEvent (); |
21 | use AnyEvent (); |
22 | use Storable (); # finally |
22 | use Storable (); |
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23 | use Config; |
23 | |
24 | |
24 | use CFPlus; |
25 | use CFPlus; |
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26 | |
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27 | our $DB_HOME = "$Crossfire::VARDIR/cfplus-$BerkeleyDB::db_version-$Config{archname}"; |
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28 | |
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29 | sub path_of($) { |
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30 | "$DB_HOME/data-$_[0]" |
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31 | } |
25 | |
32 | |
26 | sub sync { |
33 | sub sync { |
27 | # for debugging |
34 | # for debugging |
28 | #CFPlus::DB::Server::req (sync => sub { }); |
35 | #CFPlus::DB::Server::req (sync => sub { }); |
29 | CFPlus::DB::Server::sync (); |
36 | CFPlus::DB::Server::sync (); |
30 | } |
37 | } |
31 | |
38 | |
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39 | sub exists($$$) { |
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40 | CFPlus::DB::Server::req (exists => @_); |
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41 | } |
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42 | |
32 | sub get($$$) { |
43 | sub get($$$) { |
33 | CFPlus::DB::Server::req (get => @_); |
44 | CFPlus::DB::Server::req (get => @_); |
34 | } |
45 | } |
35 | |
46 | |
36 | sub put($$$$) { |
47 | sub put($$$$) { |
37 | CFPlus::DB::Server::req (put => @_); |
48 | CFPlus::DB::Server::req (put => @_); |
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49 | } |
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50 | |
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51 | sub unlink($$) { |
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52 | CFPlus::DB::Server::req (unlink => @_); |
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53 | } |
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54 | |
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55 | sub write_file($$$) { |
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56 | CFPlus::DB::Server::req (write_file => @_); |
38 | } |
57 | } |
39 | |
58 | |
40 | our $tilemap; |
59 | our $tilemap; |
41 | |
60 | |
42 | sub get_tile_id_sync($) { |
61 | sub get_tile_id_sync($) { |
… | |
… | |
61 | use strict; |
80 | use strict; |
62 | |
81 | |
63 | use Fcntl; |
82 | use Fcntl; |
64 | use BerkeleyDB; |
83 | use BerkeleyDB; |
65 | |
84 | |
66 | our $DB_HOME = "$Crossfire::VARDIR/cfplus"; |
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67 | our $DB_ENV; |
85 | our $DB_ENV; |
68 | our $DB_STATE; |
86 | our $DB_STATE; |
69 | our %DB_TABLE; |
87 | our %DB_TABLE; |
70 | |
88 | |
71 | sub open_db { |
89 | sub open_db { |
… | |
… | |
102 | -Flags => DB_CREATE | DB_UPGRADE, |
120 | -Flags => DB_CREATE | DB_UPGRADE, |
103 | or die "unable to create/open database table $_[0]: $BerkeleyDB::Error" |
121 | or die "unable to create/open database table $_[0]: $BerkeleyDB::Error" |
104 | } |
122 | } |
105 | } |
123 | } |
106 | |
124 | |
107 | our $SYNC_INTERVAL = 6; |
125 | our $SYNC_INTERVAL = 60; |
108 | |
126 | |
109 | our %CB; |
127 | our %CB; |
110 | our $FH; |
128 | our $FH; |
111 | our $ID = "aaa0"; |
129 | our $ID = "aaa0"; |
112 | our ($fh_r_watcher, $fh_w_watcher); |
130 | our ($fh_r_watcher, $fh_w_watcher); |
… | |
… | |
176 | sub do_sync { |
194 | sub do_sync { |
177 | $DB_ENV->txn_checkpoint (0, 0, 0); |
195 | $DB_ENV->txn_checkpoint (0, 0, 0); |
178 | () |
196 | () |
179 | } |
197 | } |
180 | |
198 | |
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199 | sub do_exists { |
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200 | my ($db, $key) = @_; |
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201 | |
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202 | utf8::downgrade $key; |
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203 | my $data; |
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204 | (table $db)->db_get ($key, $data) == 0 |
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205 | ? length $data |
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206 | : () |
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207 | } |
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208 | |
181 | sub do_get { |
209 | sub do_get { |
182 | my ($db, $key) = @_; |
210 | my ($db, $key) = @_; |
183 | |
211 | |
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212 | utf8::downgrade $key; |
184 | my $data; |
213 | my $data; |
185 | (table $db)->db_get ($key, $data) == 0 |
214 | (table $db)->db_get ($key, $data) == 0 |
186 | ? $data |
215 | ? $data |
187 | : () |
216 | : () |
188 | } |
217 | } |
189 | |
218 | |
190 | sub do_put { |
219 | sub do_put { |
191 | my ($db, $key, $data) = @_; |
220 | my ($db, $key, $data) = @_; |
192 | |
221 | |
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222 | utf8::downgrade $key; |
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223 | utf8::downgrade $data; |
193 | (table $db)->db_put ($key => $data) |
224 | (table $db)->db_put ($key => $data) |
194 | } |
225 | } |
195 | |
226 | |
196 | sub do_table { |
227 | sub do_table { |
197 | my ($db) = @_; |
228 | my ($db) = @_; |
… | |
… | |
231 | } |
262 | } |
232 | |
263 | |
233 | die "maximum number of transaction retries reached - database problems?"; |
264 | die "maximum number of transaction retries reached - database problems?"; |
234 | } |
265 | } |
235 | |
266 | |
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267 | sub do_unlink { |
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268 | unlink $_[0]; |
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269 | } |
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270 | |
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271 | sub do_write_file { |
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272 | my ($file, $data) = @_; |
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273 | |
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274 | utf8::downgrade $file; |
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275 | utf8::downgrade $data; |
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276 | open my $fh, ">:raw", CFPlus::DB::path_of $file |
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277 | or return; |
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278 | print $fh $data; |
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279 | close $fh; |
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280 | |
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281 | 1 |
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282 | } |
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283 | |
236 | sub run { |
284 | sub run { |
237 | ($FH, my $fh) = CFPlus::socketpipe; |
285 | ($FH, my $fh) = CFPlus::socketpipe; |
238 | |
286 | |
239 | my $oldfh = select $FH; $| = 1; select $oldfh; |
287 | my $oldfh = select $FH; $| = 1; select $oldfh; |
240 | my $oldfh = select $fh; $| = 1; select $oldfh; |
288 | my $oldfh = select $fh; $| = 1; select $oldfh; |
… | |
… | |
245 | local $SIG{__DIE__}; |
293 | local $SIG{__DIE__}; |
246 | eval { |
294 | eval { |
247 | close $FH; |
295 | close $FH; |
248 | |
296 | |
249 | unless (eval { open_db }) { |
297 | unless (eval { open_db }) { |
250 | File::Path::rmtree $DB_HOME; |
298 | eval { File::Path::rmtree $DB_HOME }; |
251 | open_db; |
299 | open_db; |
252 | } |
300 | } |
253 | |
301 | |
254 | while () { |
302 | while () { |
255 | 4 == read $fh, my $len, 4 |
303 | 4 == read $fh, my $len, 4 |
… | |
… | |
289 | $fh_r_watcher = AnyEvent->io (fh => $FH, poll => 'r', cb => \&fh_read); |
337 | $fh_r_watcher = AnyEvent->io (fh => $FH, poll => 'r', cb => \&fh_read); |
290 | |
338 | |
291 | sync_tick; |
339 | sync_tick; |
292 | } |
340 | } |
293 | |
341 | |
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342 | sub stop { |
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343 | close $FH; |
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344 | } |
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345 | |
294 | 1; |
346 | 1; |
295 | |
347 | |
296 | =back |
348 | =back |
297 | |
349 | |
298 | =head1 AUTHOR |
350 | =head1 AUTHOR |