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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.223 by root, Sun Mar 11 02:12:44 2007 UTC vs.
Revision 1.263 by root, Sat May 5 05:40:27 2007 UTC

3use utf8; 3use utf8;
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Socket;
8use Storable; 9use Storable;
10use Event;
9use Opcode; 11use Opcode;
10use Safe; 12use Safe;
11use Safe::Hole; 13use Safe::Hole;
12 14
13use Coro 3.5 (); 15use Coro 3.61 ();
16use Coro::State;
17use Coro::Handle;
14use Coro::Event; 18use Coro::Event;
15use Coro::Timer; 19use Coro::Timer;
16use Coro::Signal; 20use Coro::Signal;
17use Coro::Semaphore; 21use Coro::Semaphore;
18use Coro::AIO; 22use Coro::AIO;
23use Coro::Storable;
19 24
20use BDB (); 25use BDB ();
21use Data::Dumper; 26use Data::Dumper;
22use Digest::MD5; 27use Digest::MD5;
23use Fcntl; 28use Fcntl;
29use YAML::Syck ();
24use IO::AIO 2.32 (); 30use IO::AIO 2.32 ();
25use YAML::Syck ();
26use Time::HiRes; 31use Time::HiRes;
27use Compress::LZF; 32use Compress::LZF;
28 33
34# configure various modules to our taste
35#
36$Storable::canonical = 1; # reduce rsync transfers
37Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 38Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30 39
31use Event; $Event::Eval = 1; # no idea why this is required, but it is 40$Event::Eval = 1; # no idea why this is required, but it is
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 41
35# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 42# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36$YAML::Syck::ImplicitUnicode = 1; 43$YAML::Syck::ImplicitUnicode = 1;
37 44
38$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 45$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46
47sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
39 48
40our %COMMAND = (); 49our %COMMAND = ();
41our %COMMAND_TIME = (); 50our %COMMAND_TIME = ();
42 51
43our @EXTS = (); # list of extension package names 52our @EXTS = (); # list of extension package names
45our %EXT_CORO = (); # coroutines bound to extensions 54our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps 55our %EXT_MAP = (); # pluggable maps
47 56
48our $RELOAD; # number of reloads so far 57our $RELOAD; # number of reloads so far
49our @EVENT; 58our @EVENT;
50our $LIBDIR = datadir . "/ext";
51 59
52our $TICK = MAX_TIME * 1e-6; 60our $CONFDIR = confdir;
61our $DATADIR = datadir;
62our $LIBDIR = "$DATADIR/ext";
63our $PODDIR = "$DATADIR/pod";
64our $MAPDIR = "$DATADIR/" . mapdir;
65our $LOCALDIR = localdir;
66our $TMPDIR = "$LOCALDIR/" . tmpdir;
67our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69our $RANDOMDIR = "$LOCALDIR/random";
70our $BDBDIR = "$LOCALDIR/db";
71
72our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
53our $TICK_WATCHER; 73our $TICK_WATCHER;
54our $AIO_POLL_WATCHER; 74our $AIO_POLL_WATCHER;
55our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 75our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
56our $NEXT_TICK; 76our $NEXT_TICK;
57our $NOW; 77our $NOW;
66our $RUNTIME; 86our $RUNTIME;
67 87
68our %PLAYER; # all users 88our %PLAYER; # all users
69our %MAP; # all maps 89our %MAP; # all maps
70our $LINK_MAP; # the special {link} map, which is always available 90our $LINK_MAP; # the special {link} map, which is always available
71our $RANDOM_MAPS = cf::localdir . "/random";
72our $BDB_ENV_DIR = cf::localdir . "/db";
73
74our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
75our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
76 91
77# used to convert map paths into valid unix filenames by replacing / by ∕ 92# used to convert map paths into valid unix filenames by replacing / by ∕
78our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 93our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
79 94
80binmode STDOUT; 95binmode STDOUT;
81binmode STDERR; 96binmode STDERR;
82 97
83# read virtual server time, if available 98# read virtual server time, if available
84unless ($RUNTIME || !-e cf::localdir . "/runtime") { 99unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
85 open my $fh, "<", cf::localdir . "/runtime" 100 open my $fh, "<", "$LOCALDIR/runtime"
86 or die "unable to read runtime file: $!"; 101 or die "unable to read runtime file: $!";
87 $RUNTIME = <$fh> + 0.; 102 $RUNTIME = <$fh> + 0.;
88} 103}
89 104
90mkdir cf::localdir; 105mkdir $_
91mkdir cf::localdir . "/" . cf::playerdir; 106 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
92mkdir cf::localdir . "/" . cf::tmpdir;
93mkdir cf::localdir . "/" . cf::uniquedir;
94mkdir $RANDOM_MAPS;
95mkdir $BDB_ENV_DIR;
96 107
97our $EMERGENCY_POSITION; 108our $EMERGENCY_POSITION;
98 109
99sub cf::map::normalise; 110sub cf::map::normalise;
100 111
111=item $cf::RUNTIME 122=item $cf::RUNTIME
112 123
113The time this server has run, starts at 0 and is increased by $cf::TICK on 124The time this server has run, starts at 0 and is increased by $cf::TICK on
114every server tick. 125every server tick.
115 126
116=item $cf::LIBDIR 127=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
128$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
129$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
117 130
118The perl library directory, where extensions and cf-specific modules can 131Various directories - "/etc", read-only install directory, perl-library
119be found. It will be added to C<@INC> automatically. 132directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
133unique-items directory, player file directory, random maps directory and
134database environment.
120 135
121=item $cf::NOW 136=item $cf::NOW
122 137
123The time of the last (current) server tick. 138The time of the last (current) server tick.
124 139
129=item %cf::CFG 144=item %cf::CFG
130 145
131Configuration for the server, loaded from C</etc/crossfire/config>, or 146Configuration for the server, loaded from C</etc/crossfire/config>, or
132from wherever your confdir points to. 147from wherever your confdir points to.
133 148
134=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE 149=item cf::wait_for_tick, cf::wait_for_tick_begin
135 150
136These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK) 151These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
137or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick 152returns directly I<after> the tick processing (and consequently, can only wake one process
138processing has been done. Call C<< ->wait >> on them to maximise the 153per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
139window of cpu time available, or simply to synchronise to the server tick.
140 154
141=back 155=back
142 156
143=cut 157=cut
144 158
145BEGIN { 159BEGIN {
146 *CORE::GLOBAL::warn = sub { 160 *CORE::GLOBAL::warn = sub {
147 my $msg = join "", @_; 161 my $msg = join "", @_;
148 utf8::encode $msg;
149 162
150 $msg .= "\n" 163 $msg .= "\n"
151 unless $msg =~ /\n$/; 164 unless $msg =~ /\n$/;
152 165
166 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167
168 utf8::encode $msg;
153 LOG llevError, $msg; 169 LOG llevError, $msg;
154 }; 170 };
155} 171}
156 172
157@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 173@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
203 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 219 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
204 $d 220 $d
205 } || "[unable to dump $_[0]: '$@']"; 221 } || "[unable to dump $_[0]: '$@']";
206} 222}
207 223
208use JSON::Syck (); # TODO# replace by JSON::PC once working 224use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
209 225
210=item $ref = cf::from_json $json 226=item $ref = cf::from_json $json
211 227
212Converts a JSON string into the corresponding perl data structure. 228Converts a JSON string into the corresponding perl data structure.
213 229
214=cut
215
216sub from_json($) {
217 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
218 JSON::Syck::Load $_[0]
219}
220
221=item $json = cf::to_json $ref 230=item $json = cf::to_json $ref
222 231
223Converts a perl data structure into its JSON representation. 232Converts a perl data structure into its JSON representation.
224
225=cut
226
227sub to_json($) {
228 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
229 JSON::Syck::Dump $_[0]
230}
231 233
232=item cf::lock_wait $string 234=item cf::lock_wait $string
233 235
234Wait until the given lock is available. See cf::lock_acquire. 236Wait until the given lock is available. See cf::lock_acquire.
235 237
241returned. 243returned.
242 244
243Lock names should begin with a unique identifier (for example, cf::map::find 245Lock names should begin with a unique identifier (for example, cf::map::find
244uses map_find and cf::map::load uses map_load). 246uses map_find and cf::map::load uses map_load).
245 247
248=item $locked = cf::lock_active $string
249
250Return true if the lock is currently active, i.e. somebody has locked it.
251
246=cut 252=cut
247 253
248our %LOCK; 254our %LOCK;
249 255
250sub lock_wait($) { 256sub lock_wait($) {
267 273
268 Coro::guard { 274 Coro::guard {
269 # wake up all waiters, to be on the safe side 275 # wake up all waiters, to be on the safe side
270 $_->ready for @{ delete $LOCK{$key} }; 276 $_->ready for @{ delete $LOCK{$key} };
271 } 277 }
278}
279
280sub lock_active($) {
281 my ($key) = @_;
282
283 ! ! $LOCK{$key}
272} 284}
273 285
274sub freeze_mainloop { 286sub freeze_mainloop {
275 return unless $TICK_WATCHER->is_active; 287 return unless $TICK_WATCHER->is_active;
276 288
357} 369}
358 370
359sub write_runtime { 371sub write_runtime {
360 my $guard = cf::lock_acquire "write_runtime"; 372 my $guard = cf::lock_acquire "write_runtime";
361 373
362 my $runtime = cf::localdir . "/runtime"; 374 my $runtime = "$LOCALDIR/runtime";
363 375
376 warn "starting to write runtime...\n";#d#
364 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 377 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
365 or return; 378 or return;
366 379
367 my $value = $cf::RUNTIME + 90 + 10; 380 my $value = $cf::RUNTIME + 90 + 10;
368 # 10 is the runtime save interval, for a monotonic clock 381 # 10 is the runtime save interval, for a monotonic clock
379 or return; 392 or return;
380 393
381 aio_rename "$runtime~", $runtime 394 aio_rename "$runtime~", $runtime
382 and return; 395 and return;
383 396
397 warn "... done writing runtime.\n";#d#
398
384 1 399 1
400}
401
402=item cf::datalog type => key => value, ...
403
404Log a datalog packet of the given type with the given key-value pairs.
405
406=cut
407
408sub datalog($@) {
409 my ($type, %kv) = @_;
410 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
385} 411}
386 412
387=back 413=back
388 414
389=cut 415=cut
951Returns the given player object, loading it if necessary (might block). 977Returns the given player object, loading it if necessary (might block).
952 978
953=cut 979=cut
954 980
955sub playerdir($) { 981sub playerdir($) {
956 cf::localdir 982 "$PLAYERDIR/"
957 . "/"
958 . cf::playerdir
959 . "/"
960 . (ref $_[0] ? $_[0]->ob->name : $_[0]) 983 . (ref $_[0] ? $_[0]->ob->name : $_[0])
961} 984}
962 985
963sub path($) { 986sub path($) {
964 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 987 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
965 988
966 (playerdir $login) . "/$login.pl" 989 (playerdir $login) . "/playerdata"
967} 990}
968 991
969sub find_active($) { 992sub find_active($) {
970 $cf::PLAYER{$_[0]} 993 $cf::PLAYER{$_[0]}
971 and $cf::PLAYER{$_[0]}->active 994 and $cf::PLAYER{$_[0]}->active
984 my $login = $_[0]; 1007 my $login = $_[0];
985 1008
986 my $guard = cf::lock_acquire "user_find:$login"; 1009 my $guard = cf::lock_acquire "user_find:$login";
987 1010
988 $cf::PLAYER{$_[0]} || do { 1011 $cf::PLAYER{$_[0]} || do {
1012 # rename old playerfiles to new ones
1013 #TODO: remove when no longer required
1014 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1015 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1016 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1017 aio_unlink +(playerdir $login) . "/$login.pl";
1018
989 my $pl = load_pl path $login 1019 my $pl = load_pl path $login
990 or return; 1020 or return;
991 $cf::PLAYER{$login} = $pl 1021 $cf::PLAYER{$login} = $pl
992 } 1022 }
993 } 1023 }
1077while and may block, so not sync_job-capable, ever. 1107while and may block, so not sync_job-capable, ever.
1078 1108
1079=cut 1109=cut
1080 1110
1081sub list_logins { 1111sub list_logins {
1082 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir 1112 my $dirs = aio_readdir $PLAYERDIR
1083 or return []; 1113 or return [];
1084 1114
1085 my @logins; 1115 my @logins;
1086 1116
1087 for my $login (@$dirs) { 1117 for my $login (@$dirs) {
1122 } 1152 }
1123 1153
1124 \@paths 1154 \@paths
1125} 1155}
1126 1156
1127=item $player->ext_reply ($msgid, $msgtype, %msg) 1157=item $player->ext_reply ($msgid, %msg)
1128 1158
1129Sends an ext reply to the player. 1159Sends an ext reply to the player.
1130 1160
1131=cut 1161=cut
1132 1162
1133sub ext_reply($$$%) { 1163sub ext_reply($$%) {
1134 my ($self, $id, %msg) = @_; 1164 my ($self, $id, %msg) = @_;
1135 1165
1136 $msg{msgid} = $id; 1166 $msg{msgid} = $id;
1137 1167
1138 $self->send ("ext " . cf::to_json \%msg); 1168 $self->send ("ext " . cf::to_json \%msg);
1139} 1169}
1140 1170
1141package cf; 1171=item $player->ext_event ($type, %msg)
1172
1173Sends an ext event to the client.
1174
1175=cut
1176
1177sub ext_event($$%) {
1178 my ($self, $type, %msg) = @_;
1179
1180 $self->ns->ext_event ($type, %msg);
1181}
1182
1183=head3 cf::region
1184
1185=over 4
1186
1187=cut
1188
1189package cf::region;
1190
1191=item cf::region::find_by_path $path
1192
1193Tries to decuce the probable region for a map knowing only its path.
1194
1195=cut
1196
1197sub find_by_path($) {
1198 my ($path) = @_;
1199
1200 my ($match, $specificity);
1201
1202 for my $region (list) {
1203 if ($region->match && $path =~ $region->match) {
1204 ($match, $specificity) = ($region, $region->specificity)
1205 if $region->specificity > $specificity;
1206 }
1207 }
1208
1209 $match
1210}
1142 1211
1143=back 1212=back
1144
1145 1213
1146=head3 cf::map 1214=head3 cf::map
1147 1215
1148=over 4 1216=over 4
1149 1217
1287 1355
1288# the original (read-only) location 1356# the original (read-only) location
1289sub load_path { 1357sub load_path {
1290 my ($self) = @_; 1358 my ($self) = @_;
1291 1359
1292 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path} 1360 "$MAPDIR/$self->{path}.map"
1293} 1361}
1294 1362
1295# the temporary/swap location 1363# the temporary/swap location
1296sub save_path { 1364sub save_path {
1297 my ($self) = @_; 1365 my ($self) = @_;
1298 1366
1299 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1367 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1300 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path 1368 "$TMPDIR/$path.map"
1301} 1369}
1302 1370
1303# the unique path, undef == no special unique path 1371# the unique path, undef == no special unique path
1304sub uniq_path { 1372sub uniq_path {
1305 my ($self) = @_; 1373 my ($self) = @_;
1306 1374
1307 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1375 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1308 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path 1376 "$UNIQUEDIR/$path"
1309} 1377}
1310 1378
1311# and all this just because we cannot iterate over 1379# and all this just because we cannot iterate over
1312# all maps in C++... 1380# all maps in C++...
1313sub change_all_map_light { 1381sub change_all_map_light {
1380 $self->load_header_orig 1448 $self->load_header_orig
1381 or return; 1449 or return;
1382 $self->prepare_orig; 1450 $self->prepare_orig;
1383 } 1451 }
1384 1452
1453 $self->default_region (cf::region::find_by_path $self->{path})
1454 unless $self->default_region;
1455
1385 1 1456 1
1386} 1457}
1387 1458
1388sub find; 1459sub find;
1389sub find { 1460sub find {
1422 my ($self) = @_; 1493 my ($self) = @_;
1423 1494
1424 local $self->{deny_reset} = 1; # loading can take a long time 1495 local $self->{deny_reset} = 1; # loading can take a long time
1425 1496
1426 my $path = $self->{path}; 1497 my $path = $self->{path};
1498
1499 {
1427 my $guard = cf::lock_acquire "map_load:$path"; 1500 my $guard = cf::lock_acquire "map_load:$path";
1428 1501
1429 return if $self->in_memory != cf::MAP_SWAPPED; 1502 return if $self->in_memory != cf::MAP_SWAPPED;
1430 1503
1431 $self->in_memory (cf::MAP_LOADING); 1504 $self->in_memory (cf::MAP_LOADING);
1432 1505
1433 $self->alloc; 1506 $self->alloc;
1434 1507
1435 $self->pre_load; 1508 $self->pre_load;
1436
1437 $self->_load_objects ($self->{load_path}, 1)
1438 or return;
1439
1440 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1441 if delete $self->{load_original};
1442
1443 if (my $uniq = $self->uniq_path) {
1444 utf8::encode $uniq;
1445 if (aio_open $uniq, O_RDONLY, 0) {
1446 $self->clear_unique_items;
1447 $self->_load_objects ($uniq, 0);
1448 }
1449 }
1450
1451 Coro::cede;
1452
1453 # now do the right thing for maps
1454 $self->link_multipart_objects;
1455
1456 unless ($self->{deny_activate}) {
1457 $self->decay_objects;
1458 $self->fix_auto_apply;
1459 $self->update_buttons;
1460 Coro::cede; 1509 Coro::cede;
1461 $self->set_darkness_map; 1510
1511 $self->_load_objects ($self->{load_path}, 1)
1512 or return;
1513
1514 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1515 if delete $self->{load_original};
1516
1517 if (my $uniq = $self->uniq_path) {
1518 utf8::encode $uniq;
1519 if (aio_open $uniq, O_RDONLY, 0) {
1520 $self->clear_unique_items;
1521 $self->_load_objects ($uniq, 0);
1522 }
1523 }
1524
1525 Coro::cede;
1526 # now do the right thing for maps
1527 $self->link_multipart_objects;
1462 $self->difficulty ($self->estimate_difficulty) 1528 $self->difficulty ($self->estimate_difficulty)
1463 unless $self->difficulty; 1529 unless $self->difficulty;
1464 Coro::cede; 1530 Coro::cede;
1531
1532 unless ($self->{deny_activate}) {
1533 $self->decay_objects;
1534 $self->fix_auto_apply;
1535 $self->update_buttons;
1536 Coro::cede;
1537 $self->set_darkness_map;
1538 Coro::cede;
1465 $self->activate; 1539 $self->activate;
1540 }
1541
1542 $self->in_memory (cf::MAP_IN_MEMORY);
1466 } 1543 }
1467 1544
1468 $self->post_load; 1545 $self->post_load;
1469
1470 $self->in_memory (cf::MAP_IN_MEMORY);
1471} 1546}
1472 1547
1473sub customise_for { 1548sub customise_for {
1474 my ($self, $ob) = @_; 1549 my ($self, $ob) = @_;
1475 1550
1666instantiated unique items. May block. 1741instantiated unique items. May block.
1667 1742
1668=cut 1743=cut
1669 1744
1670sub unique_maps() { 1745sub unique_maps() {
1671 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir 1746 my $files = aio_readdir $UNIQUEDIR
1672 or return; 1747 or return;
1673 1748
1674 my @paths; 1749 my @paths;
1675 1750
1676 for (@$files) { 1751 for (@$files) {
1932 2007
1933 $rmp->{random_seed} ||= $exit->random_seed; 2008 $rmp->{random_seed} ||= $exit->random_seed;
1934 2009
1935 my $data = cf::to_json $rmp; 2010 my $data = cf::to_json $rmp;
1936 my $md5 = Digest::MD5::md5_hex $data; 2011 my $md5 = Digest::MD5::md5_hex $data;
1937 my $meta = "$cf::RANDOM_MAPS/$md5.meta"; 2012 my $meta = "$RANDOMDIR/$md5.meta";
1938 2013
1939 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) { 2014 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1940 aio_write $fh, 0, (length $data), $data, 0; 2015 aio_write $fh, 0, (length $data), $data, 0;
1941 undef $fh; 2016 undef $fh;
1942 aio_rename "$meta~", $meta; 2017 aio_rename "$meta~", $meta;
1951 2026
1952 return unless $self->type == cf::PLAYER; 2027 return unless $self->type == cf::PLAYER;
1953 2028
1954 if ($exit->slaying eq "/!") { 2029 if ($exit->slaying eq "/!") {
1955 #TODO: this should de-fi-ni-te-ly not be a sync-job 2030 #TODO: this should de-fi-ni-te-ly not be a sync-job
2031 # the problem is that $exit might not survive long enough
2032 # so it needs to be done right now, right here
1956 cf::sync_job { prepare_random_map $exit }; 2033 cf::sync_job { prepare_random_map $exit };
1957 } 2034 }
1958 2035
1959 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path; 2036 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1960 my $hp = $exit->stats->hp; 2037 my $hp = $exit->stats->hp;
1968 $self->goto ($slaying, $hp, $sp); 2045 $self->goto ($slaying, $hp, $sp);
1969 2046
1970 1; 2047 1;
1971 }) { 2048 }) {
1972 $self->message ("Something went wrong deep within the crossfire server. " 2049 $self->message ("Something went wrong deep within the crossfire server. "
1973 . "I'll try to bring you back to the map you were before. " 2050 . "I'll try to bring you back to the map you were before. "
1974 . "Please report this to the dungeon master!", 2051 . "Please report this to the dungeon master!",
1975 cf::NDI_UNIQUE | cf::NDI_RED); 2052 cf::NDI_UNIQUE | cf::NDI_RED);
1976 2053
1977 warn "ERROR in enter_exit: $@"; 2054 warn "ERROR in enter_exit: $@";
1978 $self->leave_link; 2055 $self->leave_link;
1979 } 2056 }
1980 })->prio (1); 2057 })->prio (1);
1993 2070
1994sub cf::client::send_drawinfo { 2071sub cf::client::send_drawinfo {
1995 my ($self, $text, $flags) = @_; 2072 my ($self, $text, $flags) = @_;
1996 2073
1997 utf8::encode $text; 2074 utf8::encode $text;
1998 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2075 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1999} 2076}
2000 2077
2078=item $client->ext_event ($type, %msg)
2079
2080Sends an exti event to the client.
2081
2082=cut
2083
2084sub cf::client::ext_event($$%) {
2085 my ($self, $type, %msg) = @_;
2086
2087 $msg{msgtype} = "event_$type";
2088 $self->send_packet ("ext " . cf::to_json \%msg);
2089}
2001 2090
2002=item $success = $client->query ($flags, "text", \&cb) 2091=item $success = $client->query ($flags, "text", \&cb)
2003 2092
2004Queues a query to the client, calling the given callback with 2093Queues a query to the client, calling the given callback with
2005the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2094the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2102 2191
2103# here we export the classes and methods available to script code 2192# here we export the classes and methods available to script code
2104 2193
2105=pod 2194=pod
2106 2195
2107The following fucntions and emthods are available within a safe environment: 2196The following functions and methods are available within a safe environment:
2108 2197
2109 cf::object contr pay_amount pay_player map 2198 cf::object contr pay_amount pay_player map
2110 cf::object::player player 2199 cf::object::player player
2111 cf::player peaceful 2200 cf::player peaceful
2112 cf::map trigger 2201 cf::map trigger
2197############################################################################# 2286#############################################################################
2198 2287
2199=head2 EXTENSION DATABASE SUPPORT 2288=head2 EXTENSION DATABASE SUPPORT
2200 2289
2201Crossfire maintains a very simple database for extension use. It can 2290Crossfire maintains a very simple database for extension use. It can
2202currently store anything that can be serialised using Storable, which 2291currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2203excludes objects. 2292convert to/from binary).
2204 2293
2205The parameter C<$family> should best start with the name of the extension 2294The parameter C<$family> should best start with the name of the extension
2206using it, it should be unique. 2295using it, it should be unique.
2207 2296
2208=over 4 2297=over 4
2231 BDB::CREATE | BDB::AUTO_COMMIT, 0666; 2320 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2232 cf::cleanup "db_open(db): $!" if $!; 2321 cf::cleanup "db_open(db): $!" if $!;
2233 }; 2322 };
2234 cf::cleanup "db_open(db): $@" if $@; 2323 cf::cleanup "db_open(db): $@" if $@;
2235 }; 2324 };
2236
2237 my $path = cf::localdir . "/database.pst";
2238 if (stat $path) {
2239 cf::sync_job {
2240 my $pst = Storable::retrieve $path;
2241
2242 cf::db_put (board => data => $pst->{board});
2243 cf::db_put (guildrules => data => $pst->{guildrules});
2244 cf::db_put (rent => balance => $pst->{rent}{balance});
2245 BDB::db_env_txn_checkpoint $DB_ENV;
2246
2247 unlink $path;
2248 };
2249 }
2250 } 2325 }
2251} 2326}
2252 2327
2253sub db_get($$) { 2328sub db_get($$) {
2254 my $key = "$_[0]/$_[1]"; 2329 my $key = "$_[0]/$_[1]";
2255 2330
2256 cf::sync_job { 2331 cf::sync_job {
2257 BDB::db_get $DB, undef, $key, my $data; 2332 BDB::db_get $DB, undef, $key, my $data;
2258 2333
2259 $! ? () 2334 $! ? ()
2260 : Compress::LZF::sthaw $data 2335 : $data
2261 } 2336 }
2262} 2337}
2263 2338
2264sub db_put($$$) { 2339sub db_put($$$) {
2265 BDB::dbreq_pri 4; 2340 BDB::dbreq_pri 4;
2266 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { }; 2341 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2267} 2342}
2343
2344=item cf::cache $id => [$paths...], $processversion => $process
2345
2346Generic caching function that returns the value of the resource $id,
2347caching and regenerating as required.
2348
2349This function can block.
2350
2351=cut
2352
2353sub cache {
2354 my ($id, $src, $processversion, $process) = @_;
2355
2356 my $meta =
2357 join "\x00",
2358 $processversion,
2359 map {
2360 aio_stat $_
2361 and Carp::croak "$_: $!";
2362
2363 ($_, (stat _)[7,9])
2364 } @$src;
2365
2366 my $dbmeta = db_get cache => "$id/meta";
2367 if ($dbmeta ne $meta) {
2368 # changed, we may need to process
2369
2370 my @data;
2371 my $md5;
2372
2373 for (0 .. $#$src) {
2374 0 <= aio_load $src->[$_], $data[$_]
2375 or Carp::croak "$src->[$_]: $!";
2376 }
2377
2378 # if processing is expensive, check
2379 # checksum first
2380 if (1) {
2381 $md5 =
2382 join "\x00",
2383 $processversion,
2384 map {
2385 Coro::cede;
2386 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2387 } 0.. $#$src;
2388
2389
2390 my $dbmd5 = db_get cache => "$id/md5";
2391 if ($dbmd5 eq $md5) {
2392 db_put cache => "$id/meta", $meta;
2393
2394 return db_get cache => "$id/data";
2395 }
2396 }
2397
2398 my $t1 = Time::HiRes::time;
2399 my $data = $process->(\@data);
2400 my $t2 = Time::HiRes::time;
2401
2402 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2403
2404 db_put cache => "$id/data", $data;
2405 db_put cache => "$id/md5" , $md5;
2406 db_put cache => "$id/meta", $meta;
2407
2408 return $data;
2409 }
2410
2411 db_get cache => "$id/data"
2412}
2413
2414=item fork_call { }, $args
2415
2416Executes the given code block with the given arguments in a seperate
2417process, returning the results. Everything must be serialisable with
2418Coro::Storable. May, of course, block. Note that the executed sub may
2419never block itself or use any form of Event handling.
2420
2421=cut
2422
2423sub fork_call(&@) {
2424 my ($cb, @args) = @_;
2425
2426# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2427# or die "socketpair: $!";
2428 pipe my $fh1, my $fh2
2429 or die "pipe: $!";
2430
2431 if (my $pid = fork) {
2432 close $fh2;
2433
2434 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2435 $res = Coro::Storable::thaw $res;
2436
2437 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2438
2439 die $$res unless "ARRAY" eq ref $res;
2440
2441 return wantarray ? @$res : $res->[-1];
2442 } else {
2443 reset_signals;
2444 local $SIG{__WARN__};
2445 local $SIG{__DIE__};
2446 eval {
2447 close $fh1;
2448
2449 my @res = eval { $cb->(@args) };
2450 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2451 };
2452
2453 warn $@ if $@;
2454 _exit 0;
2455 }
2456}
2457
2458
2268 2459
2269############################################################################# 2460#############################################################################
2270# the server's init and main functions 2461# the server's init and main functions
2271 2462
2272sub load_faces { 2463sub load_facedata($) {
2273 my $path = sprintf "%s/faces", cf::datadir; 2464 my ($path) = @_;
2274 2465
2275 warn "loading faces from $path\n"; 2466 warn "loading facedata from $path\n";
2276 2467
2277 my $faces; 2468 my $facedata;
2278 0 < aio_load $path, $faces 2469 0 < aio_load $path, $facedata
2279 or die "$path: $!"; 2470 or die "$path: $!";
2280 2471
2281 Coro::cede;
2282 $faces = Storable::thaw $faces; 2472 $facedata = Coro::Storable::thaw $facedata;
2283 Coro::cede;
2284 2473
2474 $facedata->{version} == 2
2475 or cf::cleanup "$path: version mismatch, cannot proceed.";
2476
2477 {
2478 my $faces = $facedata->{faceinfo};
2479
2285 while (my ($face, $info) = each %$faces) { 2480 while (my ($face, $info) = each %$faces) {
2286 my $idx = (cf::face::find $face) || cf::face::alloc $face; 2481 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2287 cf::face::set $idx, $info->{visibility}, $info->{magicmap}; 2482 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2288 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32}; 2483 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2484 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2289 Coro::cede; 2485 Coro::cede;
2486 }
2487
2488 while (my ($face, $info) = each %$faces) {
2489 next unless $info->{smooth};
2490 my $idx = cf::face::find $face
2491 or next;
2492 if (my $smooth = cf::face::find $info->{smooth}) {
2493 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2494 } else {
2495 warn "smooth face '$info->{smooth}' not found for face '$face'";
2496 }
2497 Coro::cede;
2498 }
2499 }
2500
2501 {
2502 my $anims = $facedata->{animinfo};
2503
2504 while (my ($anim, $info) = each %$anims) {
2505 cf::anim::set $anim, $info->{frames}, $info->{facings};
2506 Coro::cede;
2507 }
2508
2509 cf::anim::invalidate_all; # d'oh
2290 } 2510 }
2291 2511
2292 1 2512 1
2293} 2513}
2294 2514
2515sub reload_regions {
2516 load_resource_file "$MAPDIR/regions"
2517 or die "unable to load regions file\n";
2518}
2519
2520sub reload_facedata {
2521 load_facedata "$DATADIR/facedata"
2522 or die "unable to load facedata\n";
2523}
2524
2525sub reload_archetypes {
2526 load_resource_file "$DATADIR/archetypes"
2527 or die "unable to load archetypes\n";
2528}
2529
2530sub reload_treasures {
2531 load_resource_file "$DATADIR/treasures"
2532 or die "unable to load treasurelists\n";
2533}
2534
2295sub reload_resources { 2535sub reload_resources {
2296 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir 2536 warn "reloading resource files...\n";
2297 or die "unable to load regions file\n";#d# 2537
2538 reload_regions;
2298 load_faces 2539 reload_facedata;
2299 or die "unable to load faces\n";#d# 2540 reload_archetypes;
2541 reload_treasures;
2542
2543 warn "finished reloading resource files\n";
2300} 2544}
2301 2545
2302sub init { 2546sub init {
2303 reload_resources; 2547 reload_resources;
2304} 2548}
2305 2549
2306sub cfg_load { 2550sub cfg_load {
2307 open my $fh, "<:utf8", cf::confdir . "/config" 2551 open my $fh, "<:utf8", "$CONFDIR/config"
2308 or return; 2552 or return;
2309 2553
2310 local $/; 2554 local $/;
2311 *CFG = YAML::Syck::Load <$fh>; 2555 *CFG = YAML::Syck::Load <$fh>;
2312 2556
2397 2641
2398 warn Carp::longmess "post_cleanup backtrace" 2642 warn Carp::longmess "post_cleanup backtrace"
2399 if $make_core; 2643 if $make_core;
2400} 2644}
2401 2645
2402sub reload() { 2646sub do_reload_perl() {
2403 # can/must only be called in main 2647 # can/must only be called in main
2404 if ($Coro::current != $Coro::main) { 2648 if ($Coro::current != $Coro::main) {
2405 warn "can only reload from main coroutine"; 2649 warn "can only reload from main coroutine";
2406 return; 2650 return;
2407 } 2651 }
2482 Symbol::delete_package "safe::$_" 2726 Symbol::delete_package "safe::$_"
2483 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2727 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2484 2728
2485 warn "unloading cf.pm \"a bit\""; 2729 warn "unloading cf.pm \"a bit\"";
2486 delete $INC{"cf.pm"}; 2730 delete $INC{"cf.pm"};
2731 delete $INC{"cf/pod.pm"};
2487 2732
2488 # don't, removes xs symbols, too, 2733 # don't, removes xs symbols, too,
2489 # and global variables created in xs 2734 # and global variables created in xs
2490 #Symbol::delete_package __PACKAGE__; 2735 #Symbol::delete_package __PACKAGE__;
2491 2736
2506 warn "reattaching attachments to maps"; 2751 warn "reattaching attachments to maps";
2507 reattach $_ for values %MAP; 2752 reattach $_ for values %MAP;
2508 warn "reattaching attachments to players"; 2753 warn "reattaching attachments to players";
2509 reattach $_ for values %PLAYER; 2754 reattach $_ for values %PLAYER;
2510 2755
2511 warn "loading reloadable resources";
2512 reload_resources;
2513
2514 warn "leaving sync_job"; 2756 warn "leaving sync_job";
2515 2757
2516 1 2758 1
2517 } or do { 2759 } or do {
2518 warn $@; 2760 warn $@;
2523 warn "reloaded"; 2765 warn "reloaded";
2524}; 2766};
2525 2767
2526our $RELOAD_WATCHER; # used only during reload 2768our $RELOAD_WATCHER; # used only during reload
2527 2769
2770sub reload_perl() {
2771 # doing reload synchronously and two reloads happen back-to-back,
2772 # coro crashes during coro_state_free->destroy here.
2773
2774 $RELOAD_WATCHER ||= Event->timer (
2775 reentrant => 0,
2776 after => 0,
2777 data => WF_AUTOCANCEL,
2778 cb => sub {
2779 do_reload_perl;
2780 undef $RELOAD_WATCHER;
2781 },
2782 );
2783}
2784
2528register_command "reload" => sub { 2785register_command "reload" => sub {
2529 my ($who, $arg) = @_; 2786 my ($who, $arg) = @_;
2530 2787
2531 if ($who->flag (FLAG_WIZ)) { 2788 if ($who->flag (FLAG_WIZ)) {
2532 $who->message ("reloading server."); 2789 $who->message ("reloading server.");
2533 2790 async { reload_perl };
2534 # doing reload synchronously and two reloads happen back-to-back,
2535 # coro crashes during coro_state_free->destroy here.
2536
2537 $RELOAD_WATCHER ||= Event->timer (
2538 reentrant => 0,
2539 after => 0,
2540 data => WF_AUTOCANCEL,
2541 cb => sub {
2542 reload;
2543 undef $RELOAD_WATCHER;
2544 },
2545 );
2546 } 2791 }
2547}; 2792};
2548 2793
2549unshift @INC, $LIBDIR; 2794unshift @INC, $LIBDIR;
2550 2795
2551my $bug_warning = 0; 2796my $bug_warning = 0;
2797
2798our @WAIT_FOR_TICK;
2799our @WAIT_FOR_TICK_BEGIN;
2800
2801sub wait_for_tick {
2802 return unless $TICK_WATCHER->is_active;
2803 return if $Coro::current == $Coro::main;
2804
2805 my $signal = new Coro::Signal;
2806 push @WAIT_FOR_TICK, $signal;
2807 $signal->wait;
2808}
2809
2810sub wait_for_tick_begin {
2811 return unless $TICK_WATCHER->is_active;
2812 return if $Coro::current == $Coro::main;
2813
2814 my $signal = new Coro::Signal;
2815 push @WAIT_FOR_TICK_BEGIN, $signal;
2816 $signal->wait;
2817}
2552 2818
2553$TICK_WATCHER = Event->timer ( 2819$TICK_WATCHER = Event->timer (
2554 reentrant => 0, 2820 reentrant => 0,
2555 parked => 1, 2821 parked => 1,
2556 prio => 0, 2822 prio => 0,
2564 } 2830 }
2565 2831
2566 $NOW = Event::time; 2832 $NOW = Event::time;
2567 2833
2568 cf::server_tick; # one server iteration 2834 cf::server_tick; # one server iteration
2835
2569 $RUNTIME += $TICK; 2836 $RUNTIME += $TICK;
2570 $NEXT_TICK += $TICK; 2837 $NEXT_TICK += $TICK;
2571 2838
2572 if ($NOW >= $NEXT_RUNTIME_WRITE) { 2839 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2573 $NEXT_RUNTIME_WRITE = $NOW + 10; 2840 $NEXT_RUNTIME_WRITE = $NOW + 10;
2575 write_runtime 2842 write_runtime
2576 or warn "ERROR: unable to write runtime file: $!"; 2843 or warn "ERROR: unable to write runtime file: $!";
2577 }; 2844 };
2578 } 2845 }
2579 2846
2580 $WAIT_FOR_TICK->broadcast;
2581 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2582
2583# my $AFTER = Event::time; 2847# my $AFTER = Event::time;
2584# warn $AFTER - $NOW;#d# 2848# warn $AFTER - $NOW;#d#
2585 2849
2586 # if we are delayed by four ticks or more, skip them all 2850 # if we are delayed by four ticks or more, skip them all
2587 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2851 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2588 2852
2589 $TICK_WATCHER->at ($NEXT_TICK); 2853 $TICK_WATCHER->at ($NEXT_TICK);
2590 $TICK_WATCHER->start; 2854 $TICK_WATCHER->start;
2855
2856 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2857 $sig->send;
2858 }
2859 while (my $sig = shift @WAIT_FOR_TICK) {
2860 $sig->send;
2861 }
2862
2863 _post_tick;
2591 }, 2864 },
2592); 2865);
2593 2866
2594{ 2867{
2595 BDB::max_poll_time $TICK * 0.1; 2868 BDB::max_poll_time $TICK * 0.1;
2623 2896
2624 cf::sync_job { 2897 cf::sync_job {
2625 eval { 2898 eval {
2626 BDB::db_env_open 2899 BDB::db_env_open
2627 $DB_ENV, 2900 $DB_ENV,
2628 $BDB_ENV_DIR, 2901 $BDBDIR,
2629 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN 2902 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2630 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE, 2903 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2631 0666; 2904 0666;
2632 2905
2633 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!; 2906 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2634 2907
2635 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1); 2908 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2636 $DB_ENV->set_lk_detect; 2909 $DB_ENV->set_lk_detect;
2637 }; 2910 };
2638 2911
2654 prio => 6, 2927 prio => 6,
2655 cb => \&IO::AIO::poll_cb, 2928 cb => \&IO::AIO::poll_cb,
2656 ); 2929 );
2657} 2930}
2658 2931
2932my $_log_backtrace;
2933
2934sub _log_backtrace {
2935 my ($msg, @addr) = @_;
2936
2937 $msg =~ s/\n//;
2938
2939 # limit the # of concurrent backtraces
2940 if ($_log_backtrace < 2) {
2941 ++$_log_backtrace;
2942 async {
2943 my @bt = fork_call {
2944 @addr = map { sprintf "%x", $_ } @addr;
2945 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2946 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2947 or die "addr2line: $!";
2948
2949 my @funcs;
2950 my @res = <$fh>;
2951 chomp for @res;
2952 while (@res) {
2953 my ($func, $line) = splice @res, 0, 2, ();
2954 push @funcs, "[$func] $line";
2955 }
2956
2957 @funcs
2958 };
2959
2960 LOG llevInfo, "[ABT] $msg\n";
2961 LOG llevInfo, "[ABT] $_\n" for @bt;
2962 --$_log_backtrace;
2963 };
2964 } else {
2965 LOG llevInfo, "[ABT] $msg\n";
2966 LOG llevInfo, "[ABT] [suppressed]\n";
2967 }
2968}
2969
2970# load additional modules
2971use cf::pod;
2972
2659END { cf::emergency_save } 2973END { cf::emergency_save }
2660 2974
26611 29751
2662 2976

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