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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.114 by root, Mon Jan 1 16:00:10 2007 UTC vs.
Revision 1.124 by root, Tue Jan 2 22:55:05 2007 UTC

… …
179=cut 179=cut
180 180
181sub to_json($) { 181sub to_json($) {
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0] 183 JSON::Syck::Dump $_[0]
184}
185
186=item my $guard = cf::guard { BLOCK }
187
188Run the given callback when the guard object gets destroyed (useful for
189coroutine cancellations).
190
191You can call C<< ->cancel >> on the guard object to stop the block from
192being executed.
193
194=cut
195
196sub guard(&) {
197 bless \(my $cb = $_[0]), cf::guard::;
198}
199
200sub cf::guard::cancel {
201 ${$_[0]} = sub { };
202}
203
204sub cf::guard::DESTROY {
205 ${$_[0]}->();
206}
207
208=item cf::lock_wait $string
209
210Wait until the given lock is available. See cf::lock_acquire.
211
212=item my $lock = cf::lock_acquire $string
213
214Wait until the given lock is available and then acquires it and returns
215a guard object. If the guard object gets destroyed (goes out of scope,
216for example when the coroutine gets canceled), the lock is automatically
217returned.
218
219Lock names should begin with a unique identifier (for example, find_map
220uses map_find and load_map uses map_load).
221
222=cut
223
224our %LOCK;
225
226sub lock_wait($) {
227 my ($key) = @_;
228
229 # wait for lock, if any
230 while ($LOCK{$key}) {
231 push @{ $LOCK{$key} }, $Coro::current;
232 Coro::schedule;
233 }
234}
235
236sub lock_acquire($) {
237 my ($key) = @_;
238
239 # wait, to be sure we are not locked
240 lock_wait $key;
241
242 $LOCK{$key} = [];
243
244 cf::guard {
245 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} };
247 }
184} 248}
185 249
186=item cf::sync_job { BLOCK } 250=item cf::sync_job { BLOCK }
187 251
188The design of crossfire+ requires that the main coro ($Coro::main) is 252The design of crossfire+ requires that the main coro ($Coro::main) is
… …
817 (aio_load "$filename.pst", $av) >= 0 881 (aio_load "$filename.pst", $av) >= 0
818 or return; 882 or return;
819 $av = eval { (Storable::thaw $av)->{objs} }; 883 $av = eval { (Storable::thaw $av)->{objs} };
820 } 884 }
821 885
886 warn sprintf "loading %s (%d)\n",
887 $filename, length $data, scalar @{$av || []};#d#
822 return ($data, $av); 888 return ($data, $av);
823} 889}
824 890
825############################################################################# 891#############################################################################
826# command handling &c 892# command handling &c
… …
1087# and all this just because we cannot iterate over 1153# and all this just because we cannot iterate over
1088# all maps in C++... 1154# all maps in C++...
1089sub change_all_map_light { 1155sub change_all_map_light {
1090 my ($change) = @_; 1156 my ($change) = @_;
1091 1157
1092 $_->change_map_light ($change) for values %cf::MAP; 1158 $_->change_map_light ($change)
1159 for grep $_->outdoor, values %cf::MAP;
1093} 1160}
1094 1161
1095sub try_load_header($) { 1162sub try_load_header($) {
1096 my ($path) = @_; 1163 my ($path) = @_;
1097 1164
… …
1116 #warn "find_map<$path,$origin>\n";#d# 1183 #warn "find_map<$path,$origin>\n";#d#
1117 1184
1118 $path = new cf::path $path, $origin && $origin->path; 1185 $path = new cf::path $path, $origin && $origin->path;
1119 my $key = $path->as_string; 1186 my $key = $path->as_string;
1120 1187
1188 cf::lock_wait "map_find:$key";
1189
1121 $cf::MAP{$key} || do { 1190 $cf::MAP{$key} || do {
1191 my $guard = cf::lock_acquire "map_find:$key";
1192
1122 # do it the slow way 1193 # do it the slow way
1123 my $map = try_load_header $path->save_path; 1194 my $map = try_load_header $path->save_path;
1124 1195
1125 if ($map) { 1196 if ($map) {
1126 # safety 1197 # safety
… …
1143 $map->per_player (0) if $path->{user_rel}; 1214 $map->per_player (0) if $path->{user_rel};
1144 } 1215 }
1145 1216
1146 $map->path ($key); 1217 $map->path ($key);
1147 $map->{path} = $path; 1218 $map->{path} = $path;
1219 $map->{last_save} = $cf::RUNTIME;
1148 $map->last_access ($cf::RUNTIME); 1220 $map->last_access ($cf::RUNTIME);
1149 1221
1150 if ($map->should_reset) { 1222 if ($map->should_reset) {
1151 $map->reset; 1223 $map->reset;
1224 undef $guard;
1152 $map = find_map $path; 1225 $map = cf::map::find_map ($path)
1226 or return;
1153 } 1227 }
1154 1228
1155 $cf::MAP{$key} = $map 1229 $cf::MAP{$key} = $map
1156 } 1230 }
1157} 1231}
1158 1232
1159sub load { 1233sub load {
1160 my ($self) = @_; 1234 my ($self) = @_;
1161 1235
1236 my $path = $self->{path};
1237 my $guard = cf::lock_acquire "map_load:" . $path->as_string;
1238
1162 return if $self->in_memory != cf::MAP_SWAPPED; 1239 return if $self->in_memory != cf::MAP_SWAPPED;
1163 1240
1164 $self->in_memory (cf::MAP_LOADING); 1241 $self->in_memory (cf::MAP_LOADING);
1165
1166 my $path = $self->{path};
1167 1242
1168 $self->alloc; 1243 $self->alloc;
1169 $self->load_objects ($self->{load_path}, 1) 1244 $self->load_objects ($self->{load_path}, 1)
1170 or return; 1245 or return;
1171 1246
… …
1213} 1288}
1214 1289
1215sub save { 1290sub save {
1216 my ($self) = @_; 1291 my ($self) = @_;
1217 1292
1293 $self->{last_save} = $cf::RUNTIME;
1294
1295 return unless $self->dirty;
1296
1218 my $save = $self->{path}->save_path; utf8::encode $save; 1297 my $save = $self->{path}->save_path; utf8::encode $save;
1219 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1298 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1220
1221 $self->{last_save} = $cf::RUNTIME;
1222
1223 return unless $self->dirty;
1224 1299
1225 $self->{load_path} = $save; 1300 $self->{load_path} = $save;
1226 1301
1227 return if $self->{deny_save}; 1302 return if $self->{deny_save};
1228 1303
… …
1383 (ref $cf::CFG{"may_$access"} 1458 (ref $cf::CFG{"may_$access"}
1384 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} 1459 ? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1385 : $cf::CFG{"may_$access"}) 1460 : $cf::CFG{"may_$access"})
1386} 1461}
1387 1462
1463=item $player_object->enter_link
1464
1465Freezes the player and moves him/her to a special map (C<{link}>).
1466
1467The player should be reaosnably safe there for short amounts of time. You
1468I<MUST> call C<leave_link> as soon as possible, though.
1469
1470=item $player_object->leave_link ($map, $x, $y)
1471
1472Moves the player out of the specila link map onto the given map. If the
1473map is not valid (or omitted), the player will be moved back to the
1474location he/she was before the call to C<enter_link>, or, if that fails,
1475to the emergency map position.
1476
1477Might block.
1478
1479=cut
1480
1388sub cf::object::player::enter_link { 1481sub cf::object::player::enter_link {
1389 my ($self) = @_; 1482 my ($self) = @_;
1390 1483
1484 $self->deactivate_recursive;
1485
1391 return if $self->map == $LINK_MAP; 1486 return if $self->map == $LINK_MAP;
1392 1487
1393 $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] 1488 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1394 if $self->map; 1489 if $self->map;
1395 1490
1396 $self->enter_map ($LINK_MAP, 20, 20); 1491 $self->enter_map ($LINK_MAP, 20, 20);
1397 $self->deactivate_recursive;
1398} 1492}
1399 1493
1400sub cf::object::player::leave_link { 1494sub cf::object::player::leave_link {
1401 my ($self, $map, $x, $y) = @_; 1495 my ($self, $map, $x, $y) = @_;
1402 1496
1403 my $link_pos = delete $self->{_link_pos}; 1497 my $link_pos = delete $self->{_link_pos};
1404 1498
1405 unless ($map) { 1499 unless ($map) {
1406 $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1407
1408 # restore original map position 1500 # restore original map position
1409 ($map, $x, $y) = @{ $link_pos || [] }; 1501 ($map, $x, $y) = @{ $link_pos || [] };
1410 $map = cf::map::find_map $map; 1502 $map = cf::map::find_map $map;
1411 1503
1412 unless ($map) { 1504 unless ($map) {
… …
1427 1519
1428 $self->activate_recursive; 1520 $self->activate_recursive;
1429 $self->enter_map ($map, $x, $y); 1521 $self->enter_map ($map, $x, $y);
1430} 1522}
1431 1523
1524cf::player->attach (
1525 on_logout => sub {
1526 my ($pl) = @_;
1527
1528 # abort map switching before logout
1529 if ($pl->ob->{_link_pos}) {
1530 cf::sync_job {
1531 $pl->ob->leave_link
1532 };
1533 }
1534 },
1535 on_login => sub {
1536 my ($pl) = @_;
1537
1538 # try to abort aborted map switching on player login :)
1539 # should happen only on crashes
1540 if ($pl->ob->{_link_pos}) {
1541 $pl->ob->enter_link;
1542 Coro::async {
1543 # we need this sleep as the login has a concurrent enter_exit running
1544 # and this sleep increases chances of the player not ending up in scorn
1545 Coro::Timer::sleep 1;
1546 $pl->ob->leave_link;
1547 };
1548 }
1549 },
1550);
1551
1432=item $player_object->goto_map ($map, $x, $y) 1552=item $player_object->goto_map ($path, $x, $y)
1433 1553
1434=cut 1554=cut
1435 1555
1436sub cf::object::player::goto_map { 1556sub cf::object::player::goto_map {
1437 my ($self, $path, $x, $y) = @_; 1557 my ($self, $path, $x, $y) = @_;
… …
1442 $path = new cf::path $path; 1562 $path = new cf::path $path;
1443 1563
1444 my $map = cf::map::find_map $path->as_string; 1564 my $map = cf::map::find_map $path->as_string;
1445 $map = $map->customise_for ($self) if $map; 1565 $map = $map->customise_for ($self) if $map;
1446 1566
1447 warn "entering ", $map->path, " at ($x, $y)\n" 1567# warn "entering ", $map->path, " at ($x, $y)\n"
1448 if $map; 1568# if $map;
1569
1570 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1449 1571
1450 $self->leave_link ($map, $x, $y); 1572 $self->leave_link ($map, $x, $y);
1451 })->prio (1); 1573 })->prio (1);
1452} 1574}
1453 1575
… …
1794 1916
1795{ 1917{
1796 my $path = cf::localdir . "/database.pst"; 1918 my $path = cf::localdir . "/database.pst";
1797 1919
1798 sub db_load() { 1920 sub db_load() {
1799 warn "loading database $path\n";#d# remove later
1800 $DB = stat $path ? Storable::retrieve $path : { }; 1921 $DB = stat $path ? Storable::retrieve $path : { };
1801 } 1922 }
1802 1923
1803 my $pid; 1924 my $pid;
1804 1925
1805 sub db_save() { 1926 sub db_save() {
1806 warn "saving database $path\n";#d# remove later
1807 waitpid $pid, 0 if $pid; 1927 waitpid $pid, 0 if $pid;
1808 if (0 == ($pid = fork)) { 1928 if (0 == ($pid = fork)) {
1809 $DB->{_meta}{version} = 1; 1929 $DB->{_meta}{version} = 1;
1810 Storable::nstore $DB, "$path~"; 1930 Storable::nstore $DB, "$path~";
1811 rename "$path~", $path; 1931 rename "$path~", $path;
… …
1864} 1984}
1865 1985
1866sub main { 1986sub main {
1867 # we must not ever block the main coroutine 1987 # we must not ever block the main coroutine
1868 local $Coro::idle = sub { 1988 local $Coro::idle = sub {
1869 Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d# 1989 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1870 (Coro::unblock_sub { 1990 (Coro::unblock_sub {
1871 Event::one_event; 1991 Event::one_event;
1872 })->(); 1992 })->();
1873 }; 1993 };
1874 1994

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