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 | |
… | |
… | |
18 | use utf8; |
18 | use utf8; |
19 | |
19 | |
20 | use Carp (); |
20 | use Carp (); |
21 | use AnyEvent (); |
21 | use AnyEvent (); |
22 | use Storable (); |
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($) { |
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… | |
60 | |
79 | |
61 | use strict; |
80 | use strict; |
62 | |
81 | |
63 | use Fcntl; |
82 | use Fcntl; |
64 | use BerkeleyDB; |
83 | use BerkeleyDB; |
65 | use Config; |
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66 | |
84 | |
67 | our $DB_HOME = "$Crossfire::VARDIR/cfplus-$BerkeleyDB::db_version-$Config{archname}"; |
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68 | our $DB_ENV; |
85 | our $DB_ENV; |
69 | our $DB_STATE; |
86 | our $DB_STATE; |
70 | our %DB_TABLE; |
87 | our %DB_TABLE; |
71 | |
88 | |
72 | sub open_db { |
89 | sub open_db { |
… | |
… | |
177 | sub do_sync { |
194 | sub do_sync { |
178 | $DB_ENV->txn_checkpoint (0, 0, 0); |
195 | $DB_ENV->txn_checkpoint (0, 0, 0); |
179 | () |
196 | () |
180 | } |
197 | } |
181 | |
198 | |
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199 | sub do_exists { |
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200 | my ($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 $data |
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206 | : () |
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207 | } |
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208 | |
182 | sub do_get { |
209 | sub do_get { |
183 | my ($db, $key) = @_; |
210 | my ($db, $key) = @_; |
184 | |
211 | |
185 | utf8::downgrade $key; |
212 | utf8::downgrade $key; |
186 | my $data; |
213 | my $data; |
… | |
… | |
235 | } |
262 | } |
236 | |
263 | |
237 | die "maximum number of transaction retries reached - database problems?"; |
264 | die "maximum number of transaction retries reached - database problems?"; |
238 | } |
265 | } |
239 | |
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 $fh; |
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280 | |
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281 | 1 |
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282 | } |
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283 | |
240 | sub run { |
284 | sub run { |
241 | ($FH, my $fh) = CFPlus::socketpipe; |
285 | ($FH, my $fh) = CFPlus::socketpipe; |
242 | |
286 | |
243 | my $oldfh = select $FH; $| = 1; select $oldfh; |
287 | my $oldfh = select $FH; $| = 1; select $oldfh; |
244 | my $oldfh = select $fh; $| = 1; select $oldfh; |
288 | my $oldfh = select $fh; $| = 1; select $oldfh; |