… | |
… | |
8 | use Storable; |
8 | use Storable; |
9 | use Opcode; |
9 | use Opcode; |
10 | use Safe; |
10 | use Safe; |
11 | use Safe::Hole; |
11 | use Safe::Hole; |
12 | |
12 | |
13 | use Coro 3.3; |
13 | use Coro 3.3 (); |
14 | use Coro::Event; |
14 | use Coro::Event; |
15 | use Coro::Timer; |
15 | use Coro::Timer; |
16 | use Coro::Signal; |
16 | use Coro::Signal; |
17 | use Coro::Semaphore; |
17 | use Coro::Semaphore; |
18 | use Coro::AIO; |
18 | use Coro::AIO; |
… | |
… | |
181 | sub to_json($) { |
181 | sub to_json($) { |
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 | } |
184 | } |
185 | |
185 | |
|
|
186 | =item my $guard = cf::guard { BLOCK } |
|
|
187 | |
|
|
188 | Run the given callback when the guard object gets destroyed (useful for |
|
|
189 | coroutine cancellations). |
|
|
190 | |
|
|
191 | You can call C<< ->cancel >> on the guard object to stop the block from |
|
|
192 | being executed. |
|
|
193 | |
|
|
194 | =cut |
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|
195 | |
|
|
196 | sub guard(&) { |
|
|
197 | bless \(my $cb = $_[0]), cf::guard::; |
|
|
198 | } |
|
|
199 | |
|
|
200 | sub cf::guard::cancel { |
|
|
201 | ${$_[0]} = sub { }; |
|
|
202 | } |
|
|
203 | |
|
|
204 | sub cf::guard::DESTROY { |
|
|
205 | ${$_[0]}->(); |
|
|
206 | } |
|
|
207 | |
|
|
208 | =item cf::lock_wait $string |
|
|
209 | |
|
|
210 | Wait until the given lock is available. See cf::lock_acquire. |
|
|
211 | |
|
|
212 | =item my $lock = cf::lock_acquire $string |
|
|
213 | |
|
|
214 | Wait until the given lock is available and then acquires it and returns |
|
|
215 | a guard object. If the guard object gets destroyed (goes out of scope, |
|
|
216 | for example when the coroutine gets canceled), the lock is automatically |
|
|
217 | returned. |
|
|
218 | |
|
|
219 | Lock names should begin with a unique identifier (for example, find_map |
|
|
220 | uses map_find and load_map uses map_load). |
|
|
221 | |
|
|
222 | =cut |
|
|
223 | |
|
|
224 | our %LOCK; |
|
|
225 | |
|
|
226 | sub lock_wait($) { |
|
|
227 | my ($key) = @_; |
|
|
228 | |
|
|
229 | # wait for lock, if any |
|
|
230 | while ($LOCK{$key}) { |
|
|
231 | push @{ $LOCK{$key} }, $Coro::current; |
|
|
232 | Coro::schedule; |
|
|
233 | } |
|
|
234 | } |
|
|
235 | |
|
|
236 | sub lock_acquire($) { |
|
|
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 | } |
|
|
248 | } |
|
|
249 | |
|
|
250 | =item cf::async { BLOCK } |
|
|
251 | |
|
|
252 | Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the |
|
|
253 | error instead of exiting the server in case of a problem. |
|
|
254 | |
|
|
255 | =cut |
|
|
256 | |
|
|
257 | sub async(&) { |
|
|
258 | my ($cb) = @_; |
|
|
259 | |
|
|
260 | Coro::async { |
|
|
261 | eval { $cb->() }; |
|
|
262 | warn $@ if $@; |
|
|
263 | } |
|
|
264 | } |
|
|
265 | |
186 | =item cf::sync_job { BLOCK } |
266 | =item cf::sync_job { BLOCK } |
187 | |
267 | |
188 | The design of crossfire+ requires that the main coro ($Coro::main) is |
268 | The design of crossfire+ requires that the main coro ($Coro::main) is |
189 | always able to handle events or runnable, as crossfire+ is only partly |
269 | always able to handle events or runnable, as crossfire+ is only partly |
190 | reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. |
270 | reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. |
… | |
… | |
237 | =cut |
317 | =cut |
238 | |
318 | |
239 | sub coro(&) { |
319 | sub coro(&) { |
240 | my $cb = shift; |
320 | my $cb = shift; |
241 | |
321 | |
242 | my $coro; $coro = async { |
322 | my $coro = &cf::async ($cb); |
243 | eval { |
|
|
244 | $cb->(); |
|
|
245 | }; |
|
|
246 | warn $@ if $@; |
|
|
247 | }; |
|
|
248 | |
323 | |
249 | $coro->on_destroy (sub { |
324 | $coro->on_destroy (sub { |
250 | delete $EXT_CORO{$coro+0}; |
325 | delete $EXT_CORO{$coro+0}; |
251 | }); |
326 | }); |
252 | $EXT_CORO{$coro+0} = $coro; |
327 | $EXT_CORO{$coro+0} = $coro; |
… | |
… | |
817 | (aio_load "$filename.pst", $av) >= 0 |
892 | (aio_load "$filename.pst", $av) >= 0 |
818 | or return; |
893 | or return; |
819 | $av = eval { (Storable::thaw $av)->{objs} }; |
894 | $av = eval { (Storable::thaw $av)->{objs} }; |
820 | } |
895 | } |
821 | |
896 | |
|
|
897 | warn sprintf "loading %s (%d)\n", |
|
|
898 | $filename, length $data, scalar @{$av || []};#d# |
822 | return ($data, $av); |
899 | return ($data, $av); |
823 | } |
900 | } |
824 | |
901 | |
825 | ############################################################################# |
902 | ############################################################################# |
826 | # command handling &c |
903 | # command handling &c |
… | |
… | |
1087 | # and all this just because we cannot iterate over |
1164 | # and all this just because we cannot iterate over |
1088 | # all maps in C++... |
1165 | # all maps in C++... |
1089 | sub change_all_map_light { |
1166 | sub change_all_map_light { |
1090 | my ($change) = @_; |
1167 | my ($change) = @_; |
1091 | |
1168 | |
1092 | $_->change_map_light ($change) for values %cf::MAP; |
1169 | $_->change_map_light ($change) |
|
|
1170 | for grep $_->outdoor, values %cf::MAP; |
1093 | } |
1171 | } |
1094 | |
1172 | |
1095 | sub try_load_header($) { |
1173 | sub try_load_header($) { |
1096 | my ($path) = @_; |
1174 | my ($path) = @_; |
1097 | |
1175 | |
… | |
… | |
1108 | $map->{load_path} = $path; |
1186 | $map->{load_path} = $path; |
1109 | |
1187 | |
1110 | $map |
1188 | $map |
1111 | } |
1189 | } |
1112 | |
1190 | |
|
|
1191 | sub find_map; |
1113 | sub find_map { |
1192 | sub find_map { |
1114 | my ($path, $origin) = @_; |
1193 | my ($path, $origin) = @_; |
1115 | |
1194 | |
1116 | #warn "find_map<$path,$origin>\n";#d# |
1195 | #warn "find_map<$path,$origin>\n";#d# |
1117 | |
1196 | |
1118 | $path = new cf::path $path, $origin && $origin->path; |
1197 | $path = new cf::path $path, $origin && $origin->path; |
1119 | my $key = $path->as_string; |
1198 | my $key = $path->as_string; |
1120 | |
1199 | |
|
|
1200 | cf::lock_wait "map_find:$key"; |
|
|
1201 | |
1121 | $cf::MAP{$key} || do { |
1202 | $cf::MAP{$key} || do { |
|
|
1203 | my $guard = cf::lock_acquire "map_find:$key"; |
|
|
1204 | |
1122 | # do it the slow way |
1205 | # do it the slow way |
1123 | my $map = try_load_header $path->save_path; |
1206 | my $map = try_load_header $path->save_path; |
1124 | |
1207 | |
1125 | if ($map) { |
1208 | if ($map) { |
1126 | # safety |
1209 | # safety |
… | |
… | |
1148 | $map->{last_save} = $cf::RUNTIME; |
1231 | $map->{last_save} = $cf::RUNTIME; |
1149 | $map->last_access ($cf::RUNTIME); |
1232 | $map->last_access ($cf::RUNTIME); |
1150 | |
1233 | |
1151 | if ($map->should_reset) { |
1234 | if ($map->should_reset) { |
1152 | $map->reset; |
1235 | $map->reset; |
|
|
1236 | undef $guard; |
1153 | $map = find_map $path; |
1237 | $map = find_map $path |
|
|
1238 | or return; |
1154 | } |
1239 | } |
1155 | |
1240 | |
1156 | $cf::MAP{$key} = $map |
1241 | $cf::MAP{$key} = $map |
1157 | } |
1242 | } |
1158 | } |
1243 | } |
1159 | |
1244 | |
1160 | sub load { |
1245 | sub load { |
1161 | my ($self) = @_; |
1246 | my ($self) = @_; |
1162 | |
1247 | |
|
|
1248 | my $path = $self->{path}; |
|
|
1249 | my $guard = cf::lock_acquire "map_load:" . $path->as_string; |
|
|
1250 | |
1163 | return if $self->in_memory != cf::MAP_SWAPPED; |
1251 | return if $self->in_memory != cf::MAP_SWAPPED; |
1164 | |
1252 | |
1165 | $self->in_memory (cf::MAP_LOADING); |
1253 | $self->in_memory (cf::MAP_LOADING); |
1166 | |
|
|
1167 | my $path = $self->{path}; |
|
|
1168 | |
1254 | |
1169 | $self->alloc; |
1255 | $self->alloc; |
1170 | $self->load_objects ($self->{load_path}, 1) |
1256 | $self->load_objects ($self->{load_path}, 1) |
1171 | or return; |
1257 | or return; |
1172 | |
1258 | |
… | |
… | |
1405 | =cut |
1491 | =cut |
1406 | |
1492 | |
1407 | sub cf::object::player::enter_link { |
1493 | sub cf::object::player::enter_link { |
1408 | my ($self) = @_; |
1494 | my ($self) = @_; |
1409 | |
1495 | |
|
|
1496 | $self->deactivate_recursive; |
|
|
1497 | |
1410 | return if $self->map == $LINK_MAP; |
1498 | return if $self->map == $LINK_MAP; |
1411 | |
1499 | |
1412 | $self->{_link_pos} = [$self->map->{path}, $self->x, $self->y] |
1500 | $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] |
1413 | if $self->map; |
1501 | if $self->map; |
1414 | |
1502 | |
1415 | $self->enter_map ($LINK_MAP, 20, 20); |
1503 | $self->enter_map ($LINK_MAP, 20, 20); |
1416 | $self->deactivate_recursive; |
|
|
1417 | } |
1504 | } |
1418 | |
1505 | |
1419 | sub cf::object::player::leave_link { |
1506 | sub cf::object::player::leave_link { |
1420 | my ($self, $map, $x, $y) = @_; |
1507 | my ($self, $map, $x, $y) = @_; |
1421 | |
1508 | |
… | |
… | |
1444 | |
1531 | |
1445 | $self->activate_recursive; |
1532 | $self->activate_recursive; |
1446 | $self->enter_map ($map, $x, $y); |
1533 | $self->enter_map ($map, $x, $y); |
1447 | } |
1534 | } |
1448 | |
1535 | |
|
|
1536 | cf::player->attach ( |
|
|
1537 | on_logout => sub { |
|
|
1538 | my ($pl) = @_; |
|
|
1539 | |
|
|
1540 | # abort map switching before logout |
|
|
1541 | if ($pl->ob->{_link_pos}) { |
|
|
1542 | cf::sync_job { |
|
|
1543 | $pl->ob->leave_link |
|
|
1544 | }; |
|
|
1545 | } |
|
|
1546 | }, |
|
|
1547 | on_login => sub { |
|
|
1548 | my ($pl) = @_; |
|
|
1549 | |
|
|
1550 | # try to abort aborted map switching on player login :) |
|
|
1551 | # should happen only on crashes |
|
|
1552 | if ($pl->ob->{_link_pos}) { |
|
|
1553 | $pl->ob->enter_link; |
|
|
1554 | cf::async { |
|
|
1555 | # we need this sleep as the login has a concurrent enter_exit running |
|
|
1556 | # and this sleep increases chances of the player not ending up in scorn |
|
|
1557 | Coro::Timer::sleep 1; |
|
|
1558 | $pl->ob->leave_link; |
|
|
1559 | }; |
|
|
1560 | } |
|
|
1561 | }, |
|
|
1562 | ); |
|
|
1563 | |
1449 | =item $player_object->goto_map ($map, $x, $y) |
1564 | =item $player_object->goto_map ($path, $x, $y) |
1450 | |
1565 | |
1451 | =cut |
1566 | =cut |
1452 | |
1567 | |
1453 | sub cf::object::player::goto_map { |
1568 | sub cf::object::player::goto_map { |
1454 | my ($self, $path, $x, $y) = @_; |
1569 | my ($self, $path, $x, $y) = @_; |
1455 | |
1570 | |
1456 | $self->enter_link; |
1571 | $self->enter_link; |
1457 | |
1572 | |
1458 | (Coro::async { |
1573 | (cf::async { |
1459 | $path = new cf::path $path; |
1574 | $path = new cf::path $path; |
1460 | |
1575 | |
1461 | my $map = cf::map::find_map $path->as_string; |
1576 | my $map = cf::map::find_map $path->as_string; |
1462 | $map = $map->customise_for ($self) if $map; |
1577 | $map = $map->customise_for ($self) if $map; |
1463 | |
1578 | |
1464 | warn "entering ", $map->path, " at ($x, $y)\n" |
1579 | # warn "entering ", $map->path, " at ($x, $y)\n" |
1465 | if $map; |
1580 | # if $map; |
1466 | |
1581 | |
1467 | $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); |
1582 | $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); |
1468 | |
1583 | |
1469 | $self->leave_link ($map, $x, $y); |
1584 | $self->leave_link ($map, $x, $y); |
1470 | })->prio (1); |
1585 | })->prio (1); |
… | |
… | |
1525 | |
1640 | |
1526 | return unless $self->type == cf::PLAYER; |
1641 | return unless $self->type == cf::PLAYER; |
1527 | |
1642 | |
1528 | $self->enter_link; |
1643 | $self->enter_link; |
1529 | |
1644 | |
1530 | (Coro::async { |
1645 | (cf::async { |
1531 | unless (eval { |
1646 | unless (eval { |
1532 | |
|
|
1533 | prepare_random_map $exit |
1647 | prepare_random_map $exit |
1534 | if $exit->slaying eq "/!"; |
1648 | if $exit->slaying eq "/!"; |
1535 | |
1649 | |
1536 | my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; |
1650 | my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path; |
1537 | $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); |
1651 | $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp); |
… | |
… | |
1599 | on_reply => sub { |
1713 | on_reply => sub { |
1600 | my ($ns, $msg) = @_; |
1714 | my ($ns, $msg) = @_; |
1601 | |
1715 | |
1602 | # this weird shuffling is so that direct followup queries |
1716 | # this weird shuffling is so that direct followup queries |
1603 | # get handled first |
1717 | # get handled first |
1604 | my $queue = delete $ns->{query_queue}; |
1718 | my $queue = delete $ns->{query_queue} |
|
|
1719 | or return; # be conservative, not sure how that can happen, but we saw a crash here |
1605 | |
1720 | |
1606 | (shift @$queue)->[1]->($msg); |
1721 | (shift @$queue)->[1]->($msg); |
1607 | |
1722 | |
1608 | push @{ $ns->{query_queue} }, @$queue; |
1723 | push @{ $ns->{query_queue} }, @$queue; |
1609 | |
1724 | |
… | |
… | |
1626 | =cut |
1741 | =cut |
1627 | |
1742 | |
1628 | sub cf::client::coro { |
1743 | sub cf::client::coro { |
1629 | my ($self, $cb) = @_; |
1744 | my ($self, $cb) = @_; |
1630 | |
1745 | |
1631 | my $coro; $coro = async { |
1746 | my $coro = &cf::async ($cb); |
1632 | eval { |
|
|
1633 | $cb->(); |
|
|
1634 | }; |
|
|
1635 | warn $@ if $@; |
|
|
1636 | }; |
|
|
1637 | |
1747 | |
1638 | $coro->on_destroy (sub { |
1748 | $coro->on_destroy (sub { |
1639 | delete $self->{_coro}{$coro+0}; |
1749 | delete $self->{_coro}{$coro+0}; |
1640 | }); |
1750 | }); |
1641 | |
1751 | |
… | |
… | |
1813 | |
1923 | |
1814 | { |
1924 | { |
1815 | my $path = cf::localdir . "/database.pst"; |
1925 | my $path = cf::localdir . "/database.pst"; |
1816 | |
1926 | |
1817 | sub db_load() { |
1927 | sub db_load() { |
1818 | warn "loading database $path\n";#d# remove later |
|
|
1819 | $DB = stat $path ? Storable::retrieve $path : { }; |
1928 | $DB = stat $path ? Storable::retrieve $path : { }; |
1820 | } |
1929 | } |
1821 | |
1930 | |
1822 | my $pid; |
1931 | my $pid; |
1823 | |
1932 | |
1824 | sub db_save() { |
1933 | sub db_save() { |
1825 | warn "saving database $path\n";#d# remove later |
|
|
1826 | waitpid $pid, 0 if $pid; |
1934 | waitpid $pid, 0 if $pid; |
1827 | if (0 == ($pid = fork)) { |
1935 | if (0 == ($pid = fork)) { |
1828 | $DB->{_meta}{version} = 1; |
1936 | $DB->{_meta}{version} = 1; |
1829 | Storable::nstore $DB, "$path~"; |
1937 | Storable::nstore $DB, "$path~"; |
1830 | rename "$path~", $path; |
1938 | rename "$path~", $path; |
… | |
… | |
2090 | or warn "ERROR: unable to write runtime file: $!"; |
2198 | or warn "ERROR: unable to write runtime file: $!"; |
2091 | })->(); |
2199 | })->(); |
2092 | }, |
2200 | }, |
2093 | ); |
2201 | ); |
2094 | |
2202 | |
|
|
2203 | END { cf::emergency_save } |
|
|
2204 | |
2095 | 1 |
2205 | 1 |
2096 | |
2206 | |