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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.230 by root, Mon Apr 2 18:04:46 2007 UTC

4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Storable; 8use Storable;
9use Event;
9use Opcode; 10use Opcode;
10use Safe; 11use Safe;
11use Safe::Hole; 12use Safe::Hole;
12 13
13use Coro 3.3 (); 14use Coro 3.52 ();
15use Coro::State;
14use Coro::Event; 16use Coro::Event;
15use Coro::Timer; 17use Coro::Timer;
16use Coro::Signal; 18use Coro::Signal;
17use Coro::Semaphore; 19use Coro::Semaphore;
18use Coro::AIO; 20use Coro::AIO;
19 21
22use BDB ();
23use Data::Dumper;
20use Digest::MD5; 24use Digest::MD5;
21use Fcntl; 25use Fcntl;
22use IO::AIO 2.31 ();
23use YAML::Syck (); 26use YAML::Syck ();
27use IO::AIO 2.32 ();
24use Time::HiRes; 28use Time::HiRes;
29use Compress::LZF;
25 30
31# configure various modules to our taste
32#
33Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
34Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
35
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 36$Event::Eval = 1; # no idea why this is required, but it is
27 37
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 38# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 39$YAML::Syck::ImplicitUnicode = 1;
30 40
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 41$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32 42
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 43sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 44
35our %COMMAND = (); 45our %COMMAND = ();
36our %COMMAND_TIME = (); 46our %COMMAND_TIME = ();
47
48our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 49our %EXTCMD = ();
50our %EXT_CORO = (); # coroutines bound to extensions
51our %EXT_MAP = (); # pluggable maps
38 52
53our $RELOAD; # number of reloads so far
39our @EVENT; 54our @EVENT;
40our $LIBDIR = datadir . "/ext"; 55our $LIBDIR = datadir . "/ext";
41 56
42our $TICK = MAX_TIME * 1e-6; 57our $TICK = MAX_TIME * 1e-6;
43our $TICK_WATCHER; 58our $TICK_WATCHER;
59our $AIO_POLL_WATCHER;
60our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44our $NEXT_TICK; 61our $NEXT_TICK;
45our $NOW; 62our $NOW;
63our $USE_FSYNC = 1; # use fsync to write maps - default off
64
65our $BDB_POLL_WATCHER;
66our $DB_ENV;
46 67
47our %CFG; 68our %CFG;
48 69
49our $UPTIME; $UPTIME ||= time; 70our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 71our $RUNTIME;
51 72
73our %PLAYER; # all users
52our %MAP; # all maps 74our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 75our $LINK_MAP; # the special {link} map, which is always available
54our $RANDOM_MAPS = cf::localdir . "/random"; 76our $RANDOM_MAPS = cf::localdir . "/random";
55our %EXT_CORO; 77our $BDB_ENV_DIR = cf::localdir . "/db";
78
79our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
80our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
81
82# used to convert map paths into valid unix filenames by replacing / by ∕
83our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56 84
57binmode STDOUT; 85binmode STDOUT;
58binmode STDERR; 86binmode STDERR;
59 87
60# read virtual server time, if available 88# read virtual server time, if available
67mkdir cf::localdir; 95mkdir cf::localdir;
68mkdir cf::localdir . "/" . cf::playerdir; 96mkdir cf::localdir . "/" . cf::playerdir;
69mkdir cf::localdir . "/" . cf::tmpdir; 97mkdir cf::localdir . "/" . cf::tmpdir;
70mkdir cf::localdir . "/" . cf::uniquedir; 98mkdir cf::localdir . "/" . cf::uniquedir;
71mkdir $RANDOM_MAPS; 99mkdir $RANDOM_MAPS;
100mkdir $BDB_ENV_DIR;
72 101
73# a special map that is always available
74our $LINK_MAP;
75our $EMERGENCY_POSITION; 102our $EMERGENCY_POSITION;
103
104sub cf::map::normalise;
76 105
77############################################################################# 106#############################################################################
78 107
79=head2 GLOBAL VARIABLES 108=head2 GLOBAL VARIABLES
80 109
104 133
105=item %cf::CFG 134=item %cf::CFG
106 135
107Configuration for the server, loaded from C</etc/crossfire/config>, or 136Configuration for the server, loaded from C</etc/crossfire/config>, or
108from wherever your confdir points to. 137from wherever your confdir points to.
138
139=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE
140
141These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)
142or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick
143processing has been done. Call C<< ->wait >> on them to maximise the
144window of cpu time available, or simply to synchronise to the server tick.
109 145
110=back 146=back
111 147
112=cut 148=cut
113 149
117 utf8::encode $msg; 153 utf8::encode $msg;
118 154
119 $msg .= "\n" 155 $msg .= "\n"
120 unless $msg =~ /\n$/; 156 unless $msg =~ /\n$/;
121 157
122 LOG llevError, "cfperl: $msg"; 158 LOG llevError, $msg;
123 }; 159 };
124} 160}
125 161
126@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 162@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 163@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
145 181
146$Event::DIED = sub { 182$Event::DIED = sub {
147 warn "error in event callback: @_"; 183 warn "error in event callback: @_";
148}; 184};
149 185
150my %ext_pkg;
151my @exts;
152my @hook;
153
154=head2 UTILITY FUNCTIONS 186=head2 UTILITY FUNCTIONS
155 187
156=over 4 188=over 4
157 189
158=cut 190=item dumpval $ref
159 191
192=cut
193
194sub dumpval {
195 eval {
196 local $SIG{__DIE__};
197 my $d;
198 if (1) {
199 $d = new Data::Dumper([$_[0]], ["*var"]);
200 $d->Terse(1);
201 $d->Indent(2);
202 $d->Quotekeys(0);
203 $d->Useqq(1);
204 #$d->Bless(...);
205 $d->Seen($_[1]) if @_ > 1;
206 $d = $d->Dump();
207 }
208 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
209 $d
210 } || "[unable to dump $_[0]: '$@']";
211}
212
160use JSON::Syck (); # TODO# replace by JSON::PC once working 213use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
161 214
162=item $ref = cf::from_json $json 215=item $ref = cf::from_json $json
163 216
164Converts a JSON string into the corresponding perl data structure. 217Converts a JSON string into the corresponding perl data structure.
165 218
166=cut
167
168sub from_json($) {
169 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170 JSON::Syck::Load $_[0]
171}
172
173=item $json = cf::to_json $ref 219=item $json = cf::to_json $ref
174 220
175Converts a perl data structure into its JSON representation. 221Converts a perl data structure into its JSON representation.
176
177=cut
178
179sub to_json($) {
180 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181 JSON::Syck::Dump $_[0]
182}
183 222
184=item cf::lock_wait $string 223=item cf::lock_wait $string
185 224
186Wait until the given lock is available. See cf::lock_acquire. 225Wait until the given lock is available. See cf::lock_acquire.
187 226
221 # wake up all waiters, to be on the safe side 260 # wake up all waiters, to be on the safe side
222 $_->ready for @{ delete $LOCK{$key} }; 261 $_->ready for @{ delete $LOCK{$key} };
223 } 262 }
224} 263}
225 264
226=item cf::async { BLOCK }
227
228Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229error instead of exiting the server in case of a problem.
230
231=cut
232
233sub async(&) {
234 my ($cb) = @_;
235
236 Coro::async {
237 eval { $cb->() };
238 warn $@ if $@;
239 }
240}
241
242sub freeze_mainloop { 265sub freeze_mainloop {
243 return unless $TICK_WATCHER->is_active; 266 return unless $TICK_WATCHER->is_active;
244 267
245 my $guard = Coro::guard { $TICK_WATCHER->start }; 268 my $guard = Coro::guard {
269 $TICK_WATCHER->start;
270 };
246 $TICK_WATCHER->stop; 271 $TICK_WATCHER->stop;
247 $guard 272 $guard
248} 273}
274
275=item cf::async { BLOCK }
276
277Currently the same as Coro::async_pool, meaning you cannot use
278C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
279thing you are allowed to do is call C<prio> on it.
280
281=cut
282
283BEGIN { *async = \&Coro::async_pool }
249 284
250=item cf::sync_job { BLOCK } 285=item cf::sync_job { BLOCK }
251 286
252The design of crossfire+ requires that the main coro ($Coro::main) is 287The design of crossfire+ requires that the main coro ($Coro::main) is
253always able to handle events or runnable, as crossfire+ is only partly 288always able to handle events or runnable, as crossfire+ is only partly
272 my $freeze_guard = freeze_mainloop; 307 my $freeze_guard = freeze_mainloop;
273 308
274 my $busy = 1; 309 my $busy = 1;
275 my @res; 310 my @res;
276 311
277 (Coro::async { 312 (async {
278 @res = eval { $job->() }; 313 @res = eval { $job->() };
279 warn $@ if $@; 314 warn $@ if $@;
280 undef $busy; 315 undef $busy;
281 })->prio (Coro::PRIO_MAX); 316 })->prio (Coro::PRIO_MAX);
282 317
283 while ($busy) { 318 while ($busy) {
284 Coro::cede_notself; 319 Coro::cede or Event::one_event;
285 Event::one_event unless Coro::nready;
286 } 320 }
287 321
288 wantarray ? @res : $res[0] 322 wantarray ? @res : $res[0]
289 } else { 323 } else {
290 # we are in another coroutine, how wonderful, everything just works 324 # we are in another coroutine, how wonderful, everything just works
291 325
292 $job->() 326 $job->()
293 } 327 }
294} 328}
295 329
296=item $coro = cf::coro { BLOCK } 330=item $coro = cf::async_ext { BLOCK }
297 331
298Creates and returns a new coro. This coro is automcatially being canceled 332Like async, but this coro is automatically being canceled when the
299when the extension calling this is being unloaded. 333extension calling this is being unloaded.
300 334
301=cut 335=cut
302 336
303sub coro(&) { 337sub async_ext(&) {
304 my $cb = shift; 338 my $cb = shift;
305 339
306 my $coro = &cf::async ($cb); 340 my $coro = &Coro::async ($cb);
307 341
308 $coro->on_destroy (sub { 342 $coro->on_destroy (sub {
309 delete $EXT_CORO{$coro+0}; 343 delete $EXT_CORO{$coro+0};
310 }); 344 });
311 $EXT_CORO{$coro+0} = $coro; 345 $EXT_CORO{$coro+0} = $coro;
312 346
313 $coro 347 $coro
314} 348}
315 349
316sub write_runtime { 350sub write_runtime {
351 my $guard = cf::lock_acquire "write_runtime";
352
317 my $runtime = cf::localdir . "/runtime"; 353 my $runtime = cf::localdir . "/runtime";
318 354
319 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 355 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
320 or return; 356 or return;
321 357
358 my $value = $cf::RUNTIME + 90 + 10;
322 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 359 # 10 is the runtime save interval, for a monotonic clock
360 # 60 allows for the watchdog to kill the server.
361
323 (aio_write $fh, 0, (length $value), $value, 0) <= 0 362 (aio_write $fh, 0, (length $value), $value, 0) <= 0
324 and return; 363 and return;
325 364
365 # always fsync - this file is important
326 aio_fsync $fh 366 aio_fsync $fh
327 and return; 367 and return;
328 368
329 close $fh 369 close $fh
330 or return; 370 or return;
333 and return; 373 and return;
334 374
335 1 375 1
336} 376}
337 377
378=item cf::datalog type => key => value, ...
379
380Log a datalog packet of the given type with the given key-value pairs.
381
382=cut
383
384sub datalog($@) {
385 my ($type, %kv) = @_;
386 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
387}
388
338=back 389=back
339 390
340=cut 391=cut
341
342#############################################################################
343
344package cf::path;
345
346sub new {
347 my ($class, $path, $base) = @_;
348
349 $path = $path->as_string if ref $path;
350
351 my $self = bless { }, $class;
352
353 # {... are special paths that are not touched
354 # ?xxx/... are special absolute paths
355 # ?random/... random maps
356 # /! non-realised random map exit
357 # /... normal maps
358 # ~/... per-player maps without a specific player (DO NOT USE)
359 # ~user/... per-player map of a specific user
360
361 if ($path =~ /^{/) {
362 # fine as it is
363 } elsif ($path =~ s{^\?random/}{}) {
364 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365 $self->{random} = cf::from_json $data;
366 } else {
367 if ($path =~ s{^~([^/]+)?}{}) {
368 $self->{user_rel} = 1;
369
370 if (defined $1) {
371 $self->{user} = $1;
372 } elsif ($base =~ m{^~([^/]+)/}) {
373 $self->{user} = $1;
374 } else {
375 warn "cannot resolve user-relative path without user <$path,$base>\n";
376 }
377 } elsif ($path =~ /^\//) {
378 # already absolute
379 } else {
380 $base =~ s{[^/]+/?$}{};
381 return $class->new ("$base/$path");
382 }
383
384 for ($path) {
385 redo if s{/\.?/}{/};
386 redo if s{/[^/]+/\.\./}{/};
387 }
388 }
389
390 $self->{path} = $path;
391
392 $self
393}
394
395# the name / primary key / in-game path
396sub as_string {
397 my ($self) = @_;
398
399 $self->{user_rel} ? "~$self->{user}$self->{path}"
400 : $self->{random} ? "?random/$self->{path}"
401 : $self->{path}
402}
403
404# the displayed name, this is a one way mapping
405sub visible_name {
406 my ($self) = @_;
407
408# if (my $rmp = $self->{random}) {
409# # todo: be more intelligent about this
410# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411# } else {
412 $self->as_string
413# }
414}
415
416# escape the /'s in the path
417sub _escaped_path {
418 # ∕ is U+2215
419 (my $path = $_[0]{path}) =~ s/\//∕/g;
420 $path
421}
422
423# the original (read-only) location
424sub load_path {
425 my ($self) = @_;
426
427 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428}
429
430# the temporary/swap location
431sub save_path {
432 my ($self) = @_;
433
434 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437}
438
439# the unique path, might be eq to save_path
440sub uniq_path {
441 my ($self) = @_;
442
443 $self->{user_rel} || $self->{random}
444 ? undef
445 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446}
447
448# return random map parameters, or undef
449sub random_map_params {
450 my ($self) = @_;
451
452 $self->{random}
453}
454
455# this is somewhat ugly, but style maps do need special treatment
456sub is_style_map {
457 $_[0]{path} =~ m{^/styles/}
458}
459
460package cf;
461 392
462############################################################################# 393#############################################################################
463 394
464=head2 ATTACHABLE OBJECTS 395=head2 ATTACHABLE OBJECTS
465 396
591our @CB_TYPE = (); # registry for type (cf-object class) based events 522our @CB_TYPE = (); # registry for type (cf-object class) based events
592our @CB_MAP = (); 523our @CB_MAP = ();
593 524
594my %attachment; 525my %attachment;
595 526
527sub cf::attachable::thawer_merge {
528 # simply override everything except _meta
529 local $_[0]{_meta};
530 %{$_[0]} = %{$_[1]};
531}
532
596sub _attach_cb($$$$) { 533sub _attach_cb($$$$) {
597 my ($registry, $event, $prio, $cb) = @_; 534 my ($registry, $event, $prio, $cb) = @_;
598 535
599 use sort 'stable'; 536 use sort 'stable';
600 537
771# object support 708# object support
772 709
773sub reattach { 710sub reattach {
774 # basically do the same as instantiate, without calling instantiate 711 # basically do the same as instantiate, without calling instantiate
775 my ($obj) = @_; 712 my ($obj) = @_;
713
714 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776 715
777 my $registry = $obj->registry; 716 my $registry = $obj->registry;
778 717
779 @$registry = (); 718 @$registry = ();
780 719
827 $filename, length $$rdata, scalar @$objs; 766 $filename, length $$rdata, scalar @$objs;
828 767
829 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 768 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830 chmod SAVE_MODE, $fh; 769 chmod SAVE_MODE, $fh;
831 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 770 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832 aio_fsync $fh; 771 aio_fsync $fh if $cf::USE_FSYNC;
833 close $fh; 772 close $fh;
834 773
835 if (@$objs) { 774 if (@$objs) {
836 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 775 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837 chmod SAVE_MODE, $fh; 776 chmod SAVE_MODE, $fh;
838 my $data = Storable::nfreeze { version => 1, objs => $objs }; 777 my $data = Storable::nfreeze { version => 1, objs => $objs };
839 aio_write $fh, 0, (length $data), $data, 0; 778 aio_write $fh, 0, (length $data), $data, 0;
840 aio_fsync $fh; 779 aio_fsync $fh if $cf::USE_FSYNC;
841 close $fh; 780 close $fh;
842 aio_rename "$filename.pst~", "$filename.pst"; 781 aio_rename "$filename.pst~", "$filename.pst";
843 } 782 }
844 } else { 783 } else {
845 aio_unlink "$filename.pst"; 784 aio_unlink "$filename.pst";
912=cut 851=cut
913 852
914sub register_extcmd { 853sub register_extcmd {
915 my ($name, $cb) = @_; 854 my ($name, $cb) = @_;
916 855
917 my $caller = caller;
918 #warn "registering extcmd '$name' to '$caller'";
919
920 $EXTCMD{$name} = [$cb, $caller]; 856 $EXTCMD{$name} = $cb;
921} 857}
922 858
923cf::player->attach ( 859cf::player->attach (
924 on_command => sub { 860 on_command => sub {
925 my ($pl, $name, $params) = @_; 861 my ($pl, $name, $params) = @_;
938 874
939 my $msg = eval { from_json $buf }; 875 my $msg = eval { from_json $buf };
940 876
941 if (ref $msg) { 877 if (ref $msg) {
942 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 878 if (my $cb = $EXTCMD{$msg->{msgtype}}) {
943 if (my %reply = $cb->[0]->($pl, $msg)) { 879 if (my %reply = $cb->($pl, $msg)) {
944 $pl->ext_reply ($msg->{msgid}, %reply); 880 $pl->ext_reply ($msg->{msgid}, %reply);
945 } 881 }
946 } 882 }
947 } else { 883 } else {
948 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 884 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
950 886
951 cf::override; 887 cf::override;
952 }, 888 },
953); 889);
954 890
955sub register {
956 my ($base, $pkg) = @_;
957
958 #TODO
959}
960
961sub load_extension { 891sub load_extension {
962 my ($path) = @_; 892 my ($path) = @_;
963 893
964 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 894 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
965 my $base = $1; 895 my $base = $1;
966 my $pkg = $1; 896 my $pkg = $1;
967 $pkg =~ s/[^[:word:]]/_/g; 897 $pkg =~ s/[^[:word:]]/_/g;
968 $pkg = "ext::$pkg"; 898 $pkg = "ext::$pkg";
969 899
970 warn "loading '$path' into '$pkg'\n"; 900 warn "... loading '$path' into '$pkg'\n";
971 901
972 open my $fh, "<:utf8", $path 902 open my $fh, "<:utf8", $path
973 or die "$path: $!"; 903 or die "$path: $!";
974 904
975 my $source = 905 my $source =
976 "package $pkg; use strict; use utf8;\n" 906 "package $pkg; use strict; use utf8;\n"
977 . "#line 1 \"$path\"\n{\n" 907 . "#line 1 \"$path\"\n{\n"
978 . (do { local $/; <$fh> }) 908 . (do { local $/; <$fh> })
979 . "\n};\n1"; 909 . "\n};\n1";
980 910
981 eval $source 911 unless (eval $source) {
982 or die $@ ? "$path: $@\n" 912 my $msg = $@ ? "$path: $@\n"
983 : "extension disabled.\n"; 913 : "extension disabled.\n";
984 914 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
985 push @exts, $pkg; 915 warn $@;
986 $ext_pkg{$base} = $pkg; 916 warn "mandatory extension failed to load, exiting.\n";
987 917 exit 1;
988# no strict 'refs'; 918 }
989# @{"$pkg\::ISA"} = ext::; 919 die $@;
990
991 register $base, $pkg;
992}
993
994sub unload_extension {
995 my ($pkg) = @_;
996
997 warn "removing extension $pkg\n";
998
999 # remove hooks
1000 #TODO
1001# for my $idx (0 .. $#PLUGIN_EVENT) {
1002# delete $hook[$idx]{$pkg};
1003# } 920 }
1004 921
1005 # remove commands 922 push @EXTS, $pkg;
1006 for my $name (keys %COMMAND) {
1007 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009 if (@cb) {
1010 $COMMAND{$name} = \@cb;
1011 } else {
1012 delete $COMMAND{$name};
1013 }
1014 }
1015
1016 # remove extcmds
1017 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018 delete $EXTCMD{$name};
1019 }
1020
1021 if (my $cb = $pkg->can ("unload")) {
1022 eval {
1023 $cb->($pkg);
1024 1
1025 } or warn "$pkg unloaded, but with errors: $@";
1026 }
1027
1028 Symbol::delete_package $pkg;
1029} 923}
1030 924
1031sub load_extensions { 925sub load_extensions {
1032 for my $ext (<$LIBDIR/*.ext>) { 926 for my $ext (<$LIBDIR/*.ext>) {
1033 next unless -r $ext; 927 next unless -r $ext;
1037 } or warn "$ext not loaded: $@"; 931 } or warn "$ext not loaded: $@";
1038 } 932 }
1039} 933}
1040 934
1041############################################################################# 935#############################################################################
1042# load/save/clean perl data associated with a map
1043
1044*cf::mapsupport::on_clean = sub {
1045 my ($map) = @_;
1046
1047 my $path = $map->tmpname;
1048 defined $path or return;
1049
1050 unlink "$path.pst";
1051};
1052
1053cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055#############################################################################
1056# load/save perl data associated with player->ob objects
1057
1058sub all_objects(@) {
1059 @_, map all_objects ($_->inv), @_
1060}
1061
1062# TODO: compatibility cruft, remove when no longer needed
1063cf::player->attach (
1064 on_load => sub {
1065 my ($pl, $path) = @_;
1066
1067 for my $o (all_objects $pl->ob) {
1068 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069 $o->set_ob_key_value ("_perl_data");
1070
1071 %$o = %{ Storable::thaw pack "H*", $value };
1072 }
1073 }
1074 },
1075);
1076
1077#############################################################################
1078 936
1079=head2 CORE EXTENSIONS 937=head2 CORE EXTENSIONS
1080 938
1081Functions and methods that extend core crossfire objects. 939Functions and methods that extend core crossfire objects.
1082 940
941=cut
942
943package cf::player;
944
945use Coro::AIO;
946
1083=head3 cf::player 947=head3 cf::player
1084 948
1085=over 4 949=over 4
1086 950
1087=item cf::player::exists $login 951=item cf::player::find $login
1088 952
1089Returns true when the given account exists. 953Returns the given player object, loading it if necessary (might block).
1090 954
1091=cut 955=cut
1092 956
1093sub cf::player::exists($) { 957sub playerdir($) {
1094 cf::player::find $_[0] 958 cf::localdir
1095 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2; 959 . "/"
960 . cf::playerdir
961 . "/"
962 . (ref $_[0] ? $_[0]->ob->name : $_[0])
963}
964
965sub path($) {
966 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967
968 (playerdir $login) . "/$login.pl"
969}
970
971sub find_active($) {
972 $cf::PLAYER{$_[0]}
973 and $cf::PLAYER{$_[0]}->active
974 and $cf::PLAYER{$_[0]}
975}
976
977sub exists($) {
978 my ($login) = @_;
979
980 $cf::PLAYER{$login}
981 or cf::sync_job { !aio_stat path $login }
982}
983
984sub find($) {
985 return $cf::PLAYER{$_[0]} || do {
986 my $login = $_[0];
987
988 my $guard = cf::lock_acquire "user_find:$login";
989
990 $cf::PLAYER{$_[0]} || do {
991 my $pl = load_pl path $login
992 or return;
993 $cf::PLAYER{$login} = $pl
994 }
995 }
996}
997
998sub save($) {
999 my ($pl) = @_;
1000
1001 return if $pl->{deny_save};
1002
1003 my $path = path $pl;
1004 my $guard = cf::lock_acquire "user_save:$path";
1005
1006 return if $pl->{deny_save};
1007
1008 aio_mkdir playerdir $pl, 0770;
1009 $pl->{last_save} = $cf::RUNTIME;
1010
1011 $pl->save_pl ($path);
1012 Coro::cede;
1013}
1014
1015sub new($) {
1016 my ($login) = @_;
1017
1018 my $self = create;
1019
1020 $self->ob->name ($login);
1021 $self->{deny_save} = 1;
1022
1023 $cf::PLAYER{$login} = $self;
1024
1025 $self
1026}
1027
1028=item $pl->quit_character
1029
1030Nukes the player without looking back. If logged in, the connection will
1031be destroyed. May block for a long time.
1032
1033=cut
1034
1035sub quit_character {
1036 my ($pl) = @_;
1037
1038 my $name = $pl->ob->name;
1039
1040 $pl->{deny_save} = 1;
1041 $pl->password ("*"); # this should lock out the player until we nuked the dir
1042
1043 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1044 $pl->deactivate;
1045 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1046 $pl->ns->destroy if $pl->ns;
1047
1048 my $path = playerdir $pl;
1049 my $temp = "$path~$cf::RUNTIME~deleting~";
1050 aio_rename $path, $temp;
1051 delete $cf::PLAYER{$pl->ob->name};
1052 $pl->destroy;
1053
1054 my $prefix = qr<^~\Q$name\E/>;
1055
1056 # nuke player maps
1057 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1058
1059 IO::AIO::aio_rmtree $temp;
1060}
1061
1062=item $pl->kick
1063
1064Kicks a player out of the game. This destroys the connection.
1065
1066=cut
1067
1068sub kick {
1069 my ($pl, $kicker) = @_;
1070
1071 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1072 $pl->killer ("kicked");
1073 $pl->ns->destroy;
1074}
1075
1076=item cf::player::list_logins
1077
1078Returns am arrayref of all valid playernames in the system, can take a
1079while and may block, so not sync_job-capable, ever.
1080
1081=cut
1082
1083sub list_logins {
1084 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir
1085 or return [];
1086
1087 my @logins;
1088
1089 for my $login (@$dirs) {
1090 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1091 aio_read $fh, 0, 512, my $buf, 0 or next;
1092 $buf !~ /^password -------------$/m or next; # official not-valid tag
1093
1094 utf8::decode $login;
1095 push @logins, $login;
1096 }
1097
1098 \@logins
1099}
1100
1101=item $player->maps
1102
1103Returns an arrayref of map paths that are private for this
1104player. May block.
1105
1106=cut
1107
1108sub maps($) {
1109 my ($pl) = @_;
1110
1111 $pl = ref $pl ? $pl->ob->name : $pl;
1112
1113 my $files = aio_readdir playerdir $pl
1114 or return;
1115
1116 my @paths;
1117
1118 for (@$files) {
1119 utf8::decode $_;
1120 next if /\.(?:pl|pst)$/;
1121 next unless /^$PATH_SEP/o;
1122
1123 push @paths, cf::map::normalise "~$pl/$_";
1124 }
1125
1126 \@paths
1096} 1127}
1097 1128
1098=item $player->ext_reply ($msgid, $msgtype, %msg) 1129=item $player->ext_reply ($msgid, $msgtype, %msg)
1099 1130
1100Sends an ext reply to the player. 1131Sends an ext reply to the player.
1101 1132
1102=cut 1133=cut
1103 1134
1104sub cf::player::ext_reply($$$%) { 1135sub ext_reply($$$%) {
1105 my ($self, $id, %msg) = @_; 1136 my ($self, $id, %msg) = @_;
1106 1137
1107 $msg{msgid} = $id; 1138 $msg{msgid} = $id;
1108 1139
1109 $self->send ("ext " . to_json \%msg); 1140 $self->send ("ext " . cf::to_json \%msg);
1110} 1141}
1142
1143package cf;
1111 1144
1112=back 1145=back
1113 1146
1114 1147
1115=head3 cf::map 1148=head3 cf::map
1121package cf::map; 1154package cf::map;
1122 1155
1123use Fcntl; 1156use Fcntl;
1124use Coro::AIO; 1157use Coro::AIO;
1125 1158
1159use overload
1160 '""' => \&as_string,
1161 fallback => 1;
1162
1126our $MAX_RESET = 3600; 1163our $MAX_RESET = 3600;
1127our $DEFAULT_RESET = 3000; 1164our $DEFAULT_RESET = 3000;
1128 1165
1129sub generate_random_map { 1166sub generate_random_map {
1130 my ($path, $rmp) = @_; 1167 my ($self, $rmp) = @_;
1131
1132 # mit "rum" bekleckern, nicht 1168 # mit "rum" bekleckern, nicht
1133 cf::map::_create_random_map 1169 $self->_create_random_map (
1134 $path,
1135 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1170 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1171 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1172 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138 $rmp->{exit_on_final_map}, 1173 $rmp->{exit_on_final_map},
1139 $rmp->{xsize}, $rmp->{ysize}, 1174 $rmp->{xsize}, $rmp->{ysize},
1140 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1175 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1176 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1177 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1178 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1179 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145 (cf::region::find $rmp->{region}) 1180 (cf::region::find $rmp->{region}), $rmp->{custom}
1181 )
1182}
1183
1184=item cf::map->register ($regex, $prio)
1185
1186Register a handler for the map path matching the given regex at the
1187givne priority (higher is better, built-in handlers have priority 0, the
1188default).
1189
1190=cut
1191
1192sub register {
1193 my (undef, $regex, $prio) = @_;
1194 my $pkg = caller;
1195
1196 no strict;
1197 push @{"$pkg\::ISA"}, __PACKAGE__;
1198
1199 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1200}
1201
1202# also paths starting with '/'
1203$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1204
1205sub thawer_merge {
1206 my ($self, $merge) = @_;
1207
1208 # we have to keep some variables in memory intact
1209 local $self->{path};
1210 local $self->{load_path};
1211 local $self->{deny_save};
1212 local $self->{deny_reset};
1213
1214 $self->SUPER::thawer_merge ($merge);
1215}
1216
1217sub normalise {
1218 my ($path, $base) = @_;
1219
1220 $path = "$path"; # make sure its a string
1221
1222 $path =~ s/\.map$//;
1223
1224 # map plan:
1225 #
1226 # /! non-realised random map exit (special hack!)
1227 # {... are special paths that are not being touched
1228 # ?xxx/... are special absolute paths
1229 # ?random/... random maps
1230 # /... normal maps
1231 # ~user/... per-player map of a specific user
1232
1233 $path =~ s/$PATH_SEP/\//go;
1234
1235 # treat it as relative path if it starts with
1236 # something that looks reasonable
1237 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1238 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1239
1240 $base =~ s{[^/]+/?$}{};
1241 $path = "$base/$path";
1242 }
1243
1244 for ($path) {
1245 redo if s{//}{/};
1246 redo if s{/\.?/}{/};
1247 redo if s{/[^/]+/\.\./}{/};
1248 }
1249
1250 $path
1251}
1252
1253sub new_from_path {
1254 my (undef, $path, $base) = @_;
1255
1256 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1257
1258 $path = normalise $path, $base;
1259
1260 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1261 if ($path =~ $EXT_MAP{$pkg}[1]) {
1262 my $self = bless cf::map::new, $pkg;
1263 $self->{path} = $path; $self->path ($path);
1264 $self->init; # pass $1 etc.
1265 return $self;
1266 }
1267 }
1268
1269 Carp::carp "unable to resolve path '$path' (base '$base').";
1270 ()
1271}
1272
1273sub init {
1274 my ($self) = @_;
1275
1276 $self
1277}
1278
1279sub as_string {
1280 my ($self) = @_;
1281
1282 "$self->{path}"
1283}
1284
1285# the displayed name, this is a one way mapping
1286sub visible_name {
1287 &as_string
1288}
1289
1290# the original (read-only) location
1291sub load_path {
1292 my ($self) = @_;
1293
1294 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}
1295}
1296
1297# the temporary/swap location
1298sub save_path {
1299 my ($self) = @_;
1300
1301 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1302 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path
1303}
1304
1305# the unique path, undef == no special unique path
1306sub uniq_path {
1307 my ($self) = @_;
1308
1309 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1310 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path
1146} 1311}
1147 1312
1148# and all this just because we cannot iterate over 1313# and all this just because we cannot iterate over
1149# all maps in C++... 1314# all maps in C++...
1150sub change_all_map_light { 1315sub change_all_map_light {
1152 1317
1153 $_->change_map_light ($change) 1318 $_->change_map_light ($change)
1154 for grep $_->outdoor, values %cf::MAP; 1319 for grep $_->outdoor, values %cf::MAP;
1155} 1320}
1156 1321
1322sub unlink_save {
1323 my ($self) = @_;
1324
1325 utf8::encode (my $save = $self->save_path);
1326 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1327 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1328}
1329
1157sub try_load_header($) { 1330sub load_header_from($) {
1158 my ($path) = @_; 1331 my ($self, $path) = @_;
1159 1332
1160 utf8::encode $path; 1333 utf8::encode $path;
1161 aio_open $path, O_RDONLY, 0 1334 #aio_open $path, O_RDONLY, 0
1335 # or return;
1336
1337 $self->_load_header ($path)
1162 or return; 1338 or return;
1163 1339
1164 my $map = cf::map::new 1340 $self->{load_path} = $path;
1341
1342 1
1343}
1344
1345sub load_header_orig {
1346 my ($self) = @_;
1347
1348 $self->load_header_from ($self->load_path)
1349}
1350
1351sub load_header_temp {
1352 my ($self) = @_;
1353
1354 $self->load_header_from ($self->save_path)
1355}
1356
1357sub prepare_temp {
1358 my ($self) = @_;
1359
1360 $self->last_access ((delete $self->{last_access})
1361 || $cf::RUNTIME); #d#
1362 # safety
1363 $self->{instantiate_time} = $cf::RUNTIME
1364 if $self->{instantiate_time} > $cf::RUNTIME;
1365}
1366
1367sub prepare_orig {
1368 my ($self) = @_;
1369
1370 $self->{load_original} = 1;
1371 $self->{instantiate_time} = $cf::RUNTIME;
1372 $self->last_access ($cf::RUNTIME);
1373 $self->instantiate;
1374}
1375
1376sub load_header {
1377 my ($self) = @_;
1378
1379 if ($self->load_header_temp) {
1380 $self->prepare_temp;
1381 } else {
1382 $self->load_header_orig
1165 or return; 1383 or return;
1384 $self->prepare_orig;
1385 }
1166 1386
1167 # for better error messages only, will be overwritten 1387 1
1168 $map->path ($path);
1169
1170 $map->load_header ($path)
1171 or return;
1172
1173 $map->{load_path} = $path;
1174
1175 $map
1176} 1388}
1177 1389
1178sub find; 1390sub find;
1179sub find { 1391sub find {
1180 my ($path, $origin) = @_; 1392 my ($path, $origin) = @_;
1181 1393
1182 #warn "find<$path,$origin>\n";#d#
1183
1184 $path = new cf::path $path, $origin && $origin->path; 1394 $path = normalise $path, $origin && $origin->path;
1185 my $key = $path->as_string;
1186 1395
1187 cf::lock_wait "map_find:$key"; 1396 cf::lock_wait "map_find:$path";
1188 1397
1189 $cf::MAP{$key} || do { 1398 $cf::MAP{$path} || do {
1190 my $guard = cf::lock_acquire "map_find:$key"; 1399 my $guard = cf::lock_acquire "map_find:$path";
1191 1400 my $map = new_from_path cf::map $path
1192 # do it the slow way
1193 my $map = try_load_header $path->save_path;
1194
1195 Coro::cede;
1196
1197 if ($map) {
1198 $map->last_access ((delete $map->{last_access})
1199 || $cf::RUNTIME); #d#
1200 # safety
1201 $map->{instantiate_time} = $cf::RUNTIME
1202 if $map->{instantiate_time} > $cf::RUNTIME;
1203 } else {
1204 if (my $rmp = $path->random_map_params) {
1205 $map = generate_random_map $key, $rmp;
1206 } else {
1207 $map = try_load_header $path->load_path;
1208 }
1209
1210 $map or return; 1401 or return;
1211 1402
1212 $map->{load_original} = 1;
1213 $map->{instantiate_time} = $cf::RUNTIME;
1214 $map->last_access ($cf::RUNTIME);
1215 $map->instantiate;
1216
1217 # per-player maps become, after loading, normal maps
1218 $map->per_player (0) if $path->{user_rel};
1219 }
1220
1221 $map->path ($key);
1222 $map->{path} = $path;
1223 $map->{last_save} = $cf::RUNTIME; 1403 $map->{last_save} = $cf::RUNTIME;
1224 1404
1225 Coro::cede; 1405 $map->load_header
1406 or return;
1226 1407
1227 if ($map->should_reset) { 1408 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1409 # doing this can freeze the server in a sync job, obviously
1410 #$cf::WAIT_FOR_TICK->wait;
1228 $map->reset; 1411 $map->reset;
1229 undef $guard; 1412 undef $guard;
1230 $map = find $path 1413 return find $path;
1231 or return;
1232 } 1414 }
1233 1415
1234 $cf::MAP{$key} = $map 1416 $cf::MAP{$path} = $map
1235 } 1417 }
1236} 1418}
1419
1420sub pre_load { }
1421sub post_load { }
1237 1422
1238sub load { 1423sub load {
1239 my ($self) = @_; 1424 my ($self) = @_;
1240 1425
1426 local $self->{deny_reset} = 1; # loading can take a long time
1427
1241 my $path = $self->{path}; 1428 my $path = $self->{path};
1242 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1429 my $guard = cf::lock_acquire "map_load:$path";
1243 1430
1244 return if $self->in_memory != cf::MAP_SWAPPED; 1431 return if $self->in_memory != cf::MAP_SWAPPED;
1245 1432
1246 $self->in_memory (cf::MAP_LOADING); 1433 $self->in_memory (cf::MAP_LOADING);
1247 1434
1248 $self->alloc; 1435 $self->alloc;
1436
1437 $self->pre_load;
1438
1249 $self->load_objects ($self->{load_path}, 1) 1439 $self->_load_objects ($self->{load_path}, 1)
1250 or return; 1440 or return;
1251 1441
1252 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1442 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253 if delete $self->{load_original}; 1443 if delete $self->{load_original};
1254 1444
1255 if (my $uniq = $path->uniq_path) { 1445 if (my $uniq = $self->uniq_path) {
1256 utf8::encode $uniq; 1446 utf8::encode $uniq;
1257 if (aio_open $uniq, O_RDONLY, 0) { 1447 if (aio_open $uniq, O_RDONLY, 0) {
1258 $self->clear_unique_items; 1448 $self->clear_unique_items;
1259 $self->load_objects ($uniq, 0); 1449 $self->_load_objects ($uniq, 0);
1260 } 1450 }
1261 } 1451 }
1262 1452
1263 Coro::cede; 1453 Coro::cede;
1264 1454
1265 # now do the right thing for maps 1455 # now do the right thing for maps
1266 $self->link_multipart_objects; 1456 $self->link_multipart_objects;
1267 1457
1268 if ($self->{path}->is_style_map) { 1458 unless ($self->{deny_activate}) {
1269 $self->{deny_save} = 1; 1459 $self->decay_objects;
1270 $self->{deny_reset} = 1;
1271 } else {
1272 $self->fix_auto_apply; 1460 $self->fix_auto_apply;
1273 $self->decay_objects;
1274 $self->update_buttons; 1461 $self->update_buttons;
1462 Coro::cede;
1275 $self->set_darkness_map; 1463 $self->set_darkness_map;
1276 $self->difficulty ($self->estimate_difficulty) 1464 $self->difficulty ($self->estimate_difficulty)
1277 unless $self->difficulty; 1465 unless $self->difficulty;
1466 Coro::cede;
1278 $self->activate; 1467 $self->activate;
1279 } 1468 }
1280 1469
1281 Coro::cede; 1470 $self->post_load;
1282 1471
1283 $self->in_memory (cf::MAP_IN_MEMORY); 1472 $self->in_memory (cf::MAP_IN_MEMORY);
1473}
1474
1475sub customise_for {
1476 my ($self, $ob) = @_;
1477
1478 return find "~" . $ob->name . "/" . $self->{path}
1479 if $self->per_player;
1480
1481 $self
1482}
1483
1484# find and load all maps in the 3x3 area around a map
1485sub load_diag {
1486 my ($map) = @_;
1487
1488 my @diag; # diagonal neighbours
1489
1490 for (0 .. 3) {
1491 my $neigh = $map->tile_path ($_)
1492 or next;
1493 $neigh = find $neigh, $map
1494 or next;
1495 $neigh->load;
1496
1497 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
1498 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1499 }
1500
1501 for (@diag) {
1502 my $neigh = find @$_
1503 or next;
1504 $neigh->load;
1505 }
1284} 1506}
1285 1507
1286sub find_sync { 1508sub find_sync {
1287 my ($path, $origin) = @_; 1509 my ($path, $origin) = @_;
1288 1510
1289 cf::sync_job { cf::map::find $path, $origin } 1511 cf::sync_job { find $path, $origin }
1290} 1512}
1291 1513
1292sub do_load_sync { 1514sub do_load_sync {
1293 my ($map) = @_; 1515 my ($map) = @_;
1294 1516
1295 cf::sync_job { $map->load }; 1517 cf::sync_job { $map->load };
1296} 1518}
1297 1519
1520our %MAP_PREFETCH;
1521our $MAP_PREFETCHER = undef;
1522
1523sub find_async {
1524 my ($path, $origin) = @_;
1525
1526 $path = normalise $path, $origin && $origin->{path};
1527
1528 if (my $map = $cf::MAP{$path}) {
1529 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1530 }
1531
1532 undef $MAP_PREFETCH{$path};
1533 $MAP_PREFETCHER ||= cf::async {
1534 while (%MAP_PREFETCH) {
1535 for my $path (keys %MAP_PREFETCH) {
1536 my $map = find $path
1537 or next;
1538 $map->load;
1539
1540 delete $MAP_PREFETCH{$path};
1541 }
1542 }
1543 undef $MAP_PREFETCHER;
1544 };
1545 $MAP_PREFETCHER->prio (6);
1546
1547 ()
1548}
1549
1298sub save { 1550sub save {
1299 my ($self) = @_; 1551 my ($self) = @_;
1300 1552
1553 my $lock = cf::lock_acquire "map_data:" . $self->path;
1554
1301 $self->{last_save} = $cf::RUNTIME; 1555 $self->{last_save} = $cf::RUNTIME;
1302 1556
1303 return unless $self->dirty; 1557 return unless $self->dirty;
1304 1558
1305 my $save = $self->{path}->save_path; utf8::encode $save; 1559 my $save = $self->save_path; utf8::encode $save;
1306 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1560 my $uniq = $self->uniq_path; utf8::encode $uniq;
1307 1561
1308 $self->{load_path} = $save; 1562 $self->{load_path} = $save;
1309 1563
1310 return if $self->{deny_save}; 1564 return if $self->{deny_save};
1311 1565
1312 local $self->{last_access} = $self->last_access;#d# 1566 local $self->{last_access} = $self->last_access;#d#
1313 1567
1568 cf::async {
1569 $_->contr->save for $self->players;
1570 };
1571
1314 if ($uniq) { 1572 if ($uniq) {
1315 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 1573 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316 $self->save_objects ($uniq, cf::IO_UNIQUES); 1574 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1317 } else { 1575 } else {
1318 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 1576 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319 } 1577 }
1320} 1578}
1321 1579
1322sub swap_out { 1580sub swap_out {
1323 my ($self) = @_; 1581 my ($self) = @_;
1324 1582
1325 # save first because save cedes 1583 # save first because save cedes
1326 $self->save; 1584 $self->save;
1585
1586 my $lock = cf::lock_acquire "map_data:" . $self->path;
1327 1587
1328 return if $self->players; 1588 return if $self->players;
1329 return if $self->in_memory != cf::MAP_IN_MEMORY; 1589 return if $self->in_memory != cf::MAP_IN_MEMORY;
1330 return if $self->{deny_save}; 1590 return if $self->{deny_save};
1331 1591
1335 1595
1336sub reset_at { 1596sub reset_at {
1337 my ($self) = @_; 1597 my ($self) = @_;
1338 1598
1339 # TODO: safety, remove and allow resettable per-player maps 1599 # TODO: safety, remove and allow resettable per-player maps
1340 return 1e99 if $self->{path}{user_rel}; 1600 return 1e99 if $self->isa ("ext::map_per_player");#d#
1341 return 1e99 if $self->{deny_reset}; 1601 return 1e99 if $self->{deny_reset};
1342 1602
1343 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1603 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1604 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345 1605
1350 my ($self) = @_; 1610 my ($self) = @_;
1351 1611
1352 $self->reset_at <= $cf::RUNTIME 1612 $self->reset_at <= $cf::RUNTIME
1353} 1613}
1354 1614
1355sub unlink_save {
1356 my ($self) = @_;
1357
1358 utf8::encode (my $save = $self->{path}->save_path);
1359 aioreq_pri 3; IO::AIO::aio_unlink $save;
1360 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361}
1362
1363sub rename {
1364 my ($self, $new_path) = @_;
1365
1366 $self->unlink_save;
1367
1368 delete $cf::MAP{$self->path};
1369 $self->{path} = new cf::path $new_path;
1370 $self->path ($self->{path}->as_string);
1371 $cf::MAP{$self->path} = $self;
1372
1373 $self->save;
1374}
1375
1376sub reset { 1615sub reset {
1377 my ($self) = @_; 1616 my ($self) = @_;
1378 1617
1618 my $lock = cf::lock_acquire "map_data:$self->{path}";
1619
1379 return if $self->players; 1620 return if $self->players;
1380 return if $self->{path}{user_rel};#d# 1621 return if $self->isa ("ext::map_per_player");#d#
1381 1622
1382 warn "resetting map ", $self->path;#d# 1623 warn "resetting map ", $self->path;#d#
1383 1624
1625 $self->in_memory (cf::MAP_SWAPPED);
1626
1627 # need to save uniques path
1628 unless ($self->{deny_save}) {
1629 my $uniq = $self->uniq_path; utf8::encode $uniq;
1630
1631 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1632 if $uniq;
1633 }
1634
1384 delete $cf::MAP{$self->path}; 1635 delete $cf::MAP{$self->path};
1636
1637 $self->clear;
1385 1638
1386 $_->clear_links_to ($self) for values %cf::MAP; 1639 $_->clear_links_to ($self) for values %cf::MAP;
1387 1640
1388 $self->unlink_save; 1641 $self->unlink_save;
1389 $self->destroy; 1642 $self->destroy;
1392my $nuke_counter = "aaaa"; 1645my $nuke_counter = "aaaa";
1393 1646
1394sub nuke { 1647sub nuke {
1395 my ($self) = @_; 1648 my ($self) = @_;
1396 1649
1650 delete $cf::MAP{$self->path};
1651
1652 $self->unlink_save;
1653
1654 bless $self, "cf::map";
1655 delete $self->{deny_reset};
1397 $self->{deny_save} = 1; 1656 $self->{deny_save} = 1;
1398 $self->reset_timeout (1); 1657 $self->reset_timeout (1);
1399 $self->rename ("{nuke}/" . ($nuke_counter++)); 1658 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1659
1660 $cf::MAP{$self->path} = $self;
1661
1400 $self->reset; # polite request, might not happen 1662 $self->reset; # polite request, might not happen
1401} 1663}
1402 1664
1403sub customise_for { 1665=item cf::map::unique_maps
1404 my ($map, $ob) = @_;
1405 1666
1406 if ($map->per_player) { 1667Returns an arrayref of paths of all shared maps that have
1407 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path}; 1668instantiated unique items. May block.
1408 }
1409 1669
1410 $map 1670=cut
1411}
1412 1671
1413sub emergency_save { 1672sub unique_maps() {
1414 my $freeze_guard = cf::freeze_mainloop; 1673 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir
1674 or return;
1415 1675
1416 warn "enter emergency map save\n"; 1676 my @paths;
1417 1677
1418 cf::sync_job { 1678 for (@$files) {
1419 warn "begin emergency map save\n"; 1679 utf8::decode $_;
1420 $_->save for values %cf::MAP; 1680 next if /\.pst$/;
1681 next unless /^$PATH_SEP/o;
1682
1683 push @paths, cf::map::normalise $_;
1421 }; 1684 }
1422 1685
1423 warn "end emergency map save\n"; 1686 \@paths
1424} 1687}
1425 1688
1426package cf; 1689package cf;
1427 1690
1428=back 1691=back
1429 1692
1693=head3 cf::object
1694
1695=cut
1696
1697package cf::object;
1698
1699=over 4
1700
1701=item $ob->inv_recursive
1702
1703Returns the inventory of the object _and_ their inventories, recursively.
1704
1705=cut
1706
1707sub inv_recursive_;
1708sub inv_recursive_ {
1709 map { $_, inv_recursive_ $_->inv } @_
1710}
1711
1712sub inv_recursive {
1713 inv_recursive_ inv $_[0]
1714}
1715
1716package cf;
1717
1718=back
1430 1719
1431=head3 cf::object::player 1720=head3 cf::object::player
1432 1721
1433=over 4 1722=over 4
1434 1723
1474 1763
1475=item $player_object->enter_link 1764=item $player_object->enter_link
1476 1765
1477Freezes the player and moves him/her to a special map (C<{link}>). 1766Freezes the player and moves him/her to a special map (C<{link}>).
1478 1767
1479The player should be reaosnably safe there for short amounts of time. You 1768The player should be reasonably safe there for short amounts of time. You
1480I<MUST> call C<leave_link> as soon as possible, though. 1769I<MUST> call C<leave_link> as soon as possible, though.
1481 1770
1771Will never block.
1772
1482=item $player_object->leave_link ($map, $x, $y) 1773=item $player_object->leave_link ($map, $x, $y)
1483 1774
1484Moves the player out of the specila link map onto the given map. If the 1775Moves the player out of the special C<{link}> map onto the specified
1485map is not valid (or omitted), the player will be moved back to the 1776map. If the map is not valid (or omitted), the player will be moved back
1486location he/she was before the call to C<enter_link>, or, if that fails, 1777to the location he/she was before the call to C<enter_link>, or, if that
1487to the emergency map position. 1778fails, to the emergency map position.
1488 1779
1489Might block. 1780Might block.
1490 1781
1491=cut 1782=cut
1783
1784sub link_map {
1785 unless ($LINK_MAP) {
1786 $LINK_MAP = cf::map::find "{link}"
1787 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1788 $LINK_MAP->load;
1789 }
1790
1791 $LINK_MAP
1792}
1492 1793
1493sub cf::object::player::enter_link { 1794sub cf::object::player::enter_link {
1494 my ($self) = @_; 1795 my ($self) = @_;
1495 1796
1496 $self->deactivate_recursive; 1797 $self->deactivate_recursive;
1497 1798
1498 return if $self->map == $LINK_MAP; 1799 return if UNIVERSAL::isa $self->map, "ext::map_link";
1499 1800
1500 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1801 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501 if $self->map; 1802 if $self->map;
1502 1803
1503 $self->enter_map ($LINK_MAP, 20, 20); 1804 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1504} 1805}
1505 1806
1506sub cf::object::player::leave_link { 1807sub cf::object::player::leave_link {
1507 my ($self, $map, $x, $y) = @_; 1808 my ($self, $map, $x, $y) = @_;
1508 1809
1526 # use -1 or undef as default coordinates, not 0, 0 1827 # use -1 or undef as default coordinates, not 0, 0
1527 ($x, $y) = ($map->enter_x, $map->enter_y) 1828 ($x, $y) = ($map->enter_x, $map->enter_y)
1528 if $x <=0 && $y <= 0; 1829 if $x <=0 && $y <= 0;
1529 1830
1530 $map->load; 1831 $map->load;
1832 $map->load_diag;
1531 1833
1834 return unless $self->contr->active;
1532 $self->activate_recursive; 1835 $self->activate_recursive;
1836
1837 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533 $self->enter_map ($map, $x, $y); 1838 $self->enter_map ($map, $x, $y);
1534} 1839}
1535 1840
1536cf::player->attach ( 1841cf::player->attach (
1537 on_logout => sub { 1842 on_logout => sub {
1549 1854
1550 # try to abort aborted map switching on player login :) 1855 # try to abort aborted map switching on player login :)
1551 # should happen only on crashes 1856 # should happen only on crashes
1552 if ($pl->ob->{_link_pos}) { 1857 if ($pl->ob->{_link_pos}) {
1553 $pl->ob->enter_link; 1858 $pl->ob->enter_link;
1554 cf::async { 1859 (async {
1860 $pl->ob->reply (undef,
1861 "There was an internal problem at your last logout, "
1862 . "the server will try to bring you to your intended destination in a second.",
1863 cf::NDI_RED);
1555 # we need this sleep as the login has a concurrent enter_exit running 1864 # 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 1865 # and this sleep increases chances of the player not ending up in scorn
1557 Coro::Timer::sleep 1; 1866 Coro::Timer::sleep 1;
1558 $pl->ob->leave_link; 1867 $pl->ob->leave_link;
1559 }; 1868 })->prio (2);
1560 } 1869 }
1561 }, 1870 },
1562); 1871);
1563 1872
1564=item $player_object->goto ($path, $x, $y) 1873=item $player_object->goto ($path, $x, $y)
1568sub cf::object::player::goto { 1877sub cf::object::player::goto {
1569 my ($self, $path, $x, $y) = @_; 1878 my ($self, $path, $x, $y) = @_;
1570 1879
1571 $self->enter_link; 1880 $self->enter_link;
1572 1881
1573 (cf::async { 1882 (async {
1574 $path = new cf::path $path; 1883 my $map = eval {
1575
1576 my $map = cf::map::find $path->as_string; 1884 my $map = cf::map::find $path;
1577 $map = $map->customise_for ($self) if $map; 1885 $map = $map->customise_for ($self) if $map;
1578 1886 $map
1579# warn "entering ", $map->path, " at ($x, $y)\n" 1887 } or
1580# if $map;
1581
1582 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 1888 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1583 1889
1584 $self->leave_link ($map, $x, $y); 1890 $self->leave_link ($map, $x, $y);
1585 })->prio (1); 1891 })->prio (1);
1586} 1892}
1587 1893
1591 1897
1592sub parse_random_map_params { 1898sub parse_random_map_params {
1593 my ($spec) = @_; 1899 my ($spec) = @_;
1594 1900
1595 my $rmp = { # defaults 1901 my $rmp = { # defaults
1596 xsize => 10, 1902 xsize => (cf::rndm 15, 40),
1597 ysize => 10, 1903 ysize => (cf::rndm 15, 40),
1904 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
1905 #layout => string,
1598 }; 1906 };
1599 1907
1600 for (split /\n/, $spec) { 1908 for (split /\n/, $spec) {
1601 my ($k, $v) = split /\s+/, $_, 2; 1909 my ($k, $v) = split /\s+/, $_, 2;
1602 1910
1606 $rmp 1914 $rmp
1607} 1915}
1608 1916
1609sub prepare_random_map { 1917sub prepare_random_map {
1610 my ($exit) = @_; 1918 my ($exit) = @_;
1919
1920 my $guard = cf::lock_acquire "exit_prepare:$exit";
1611 1921
1612 # all this does is basically replace the /! path by 1922 # all this does is basically replace the /! path by
1613 # a new random map path (?random/...) with a seed 1923 # a new random map path (?random/...) with a seed
1614 # that depends on the exit object 1924 # that depends on the exit object
1615 1925
1616 my $rmp = parse_random_map_params $exit->msg; 1926 my $rmp = parse_random_map_params $exit->msg;
1617 1927
1618 if ($exit->map) { 1928 if ($exit->map) {
1619 $rmp->{region} = $exit->map->region_name; 1929 $rmp->{region} = $exit->region->name;
1620 $rmp->{origin_map} = $exit->map->path; 1930 $rmp->{origin_map} = $exit->map->path;
1621 $rmp->{origin_x} = $exit->x; 1931 $rmp->{origin_x} = $exit->x;
1622 $rmp->{origin_y} = $exit->y; 1932 $rmp->{origin_y} = $exit->y;
1623 } 1933 }
1624 1934
1625 $rmp->{random_seed} ||= $exit->random_seed; 1935 $rmp->{random_seed} ||= $exit->random_seed;
1626 1936
1627 my $data = cf::to_json $rmp; 1937 my $data = cf::to_json $rmp;
1628 my $md5 = Digest::MD5::md5_hex $data; 1938 my $md5 = Digest::MD5::md5_hex $data;
1939 my $meta = "$cf::RANDOM_MAPS/$md5.meta";
1629 1940
1630 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 1941 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631 aio_write $fh, 0, (length $data), $data, 0; 1942 aio_write $fh, 0, (length $data), $data, 0;
1943 undef $fh;
1944 aio_rename "$meta~", $meta;
1632 1945
1633 $exit->slaying ("?random/$md5"); 1946 $exit->slaying ("?random/$md5");
1634 $exit->msg (undef); 1947 $exit->msg (undef);
1635 } 1948 }
1636} 1949}
1638sub cf::object::player::enter_exit { 1951sub cf::object::player::enter_exit {
1639 my ($self, $exit) = @_; 1952 my ($self, $exit) = @_;
1640 1953
1641 return unless $self->type == cf::PLAYER; 1954 return unless $self->type == cf::PLAYER;
1642 1955
1956 if ($exit->slaying eq "/!") {
1957 #TODO: this should de-fi-ni-te-ly not be a sync-job
1958 cf::sync_job { prepare_random_map $exit };
1959 }
1960
1961 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962 my $hp = $exit->stats->hp;
1963 my $sp = $exit->stats->sp;
1964
1643 $self->enter_link; 1965 $self->enter_link;
1644 1966
1645 (cf::async { 1967 (async {
1646 $self->deactivate_recursive; # just to be sure 1968 $self->deactivate_recursive; # just to be sure
1647 unless (eval { 1969 unless (eval {
1648 prepare_random_map $exit 1970 $self->goto ($slaying, $hp, $sp);
1649 if $exit->slaying eq "/!";
1650
1651 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653 1971
1654 1; 1972 1;
1655 }) { 1973 }) {
1656 $self->message ("Something went wrong deep within the crossfire server. " 1974 $self->message ("Something went wrong deep within the crossfire server. "
1657 . "I'll try to bring you back to the map you were before. " 1975 . "I'll try to bring you back to the map you were before. "
1658 . "Please report this to the dungeon master", 1976 . "Please report this to the dungeon master!",
1659 cf::NDI_UNIQUE | cf::NDI_RED); 1977 cf::NDI_UNIQUE | cf::NDI_RED);
1660 1978
1661 warn "ERROR in enter_exit: $@"; 1979 warn "ERROR in enter_exit: $@";
1662 $self->leave_link; 1980 $self->leave_link;
1663 } 1981 }
1677 1995
1678sub cf::client::send_drawinfo { 1996sub cf::client::send_drawinfo {
1679 my ($self, $text, $flags) = @_; 1997 my ($self, $text, $flags) = @_;
1680 1998
1681 utf8::encode $text; 1999 utf8::encode $text;
1682 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2000 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683} 2001}
1684 2002
1685 2003
1686=item $success = $client->query ($flags, "text", \&cb) 2004=item $success = $client->query ($flags, "text", \&cb)
1687 2005
1718 # get handled first 2036 # get handled first
1719 my $queue = delete $ns->{query_queue} 2037 my $queue = delete $ns->{query_queue}
1720 or return; # be conservative, not sure how that can happen, but we saw a crash here 2038 or return; # be conservative, not sure how that can happen, but we saw a crash here
1721 2039
1722 (shift @$queue)->[1]->($msg); 2040 (shift @$queue)->[1]->($msg);
2041 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723 2042
1724 push @{ $ns->{query_queue} }, @$queue; 2043 push @{ $ns->{query_queue} }, @$queue;
1725 2044
1726 if (@{ $ns->{query_queue} } == @$queue) { 2045 if (@{ $ns->{query_queue} } == @$queue) {
1727 if (@$queue) { 2046 if (@$queue) {
1731 } 2050 }
1732 } 2051 }
1733 }, 2052 },
1734); 2053);
1735 2054
1736=item $client->coro (\&cb) 2055=item $client->async (\&cb)
1737 2056
1738Create a new coroutine, running the specified callback. The coroutine will 2057Create a new coroutine, running the specified callback. The coroutine will
1739be automatically cancelled when the client gets destroyed (e.g. on logout, 2058be automatically cancelled when the client gets destroyed (e.g. on logout,
1740or loss of connection). 2059or loss of connection).
1741 2060
1742=cut 2061=cut
1743 2062
1744sub cf::client::coro { 2063sub cf::client::async {
1745 my ($self, $cb) = @_; 2064 my ($self, $cb) = @_;
1746 2065
1747 my $coro = &cf::async ($cb); 2066 my $coro = &Coro::async ($cb);
1748 2067
1749 $coro->on_destroy (sub { 2068 $coro->on_destroy (sub {
1750 delete $self->{_coro}{$coro+0}; 2069 delete $self->{_coro}{$coro+0};
1751 }); 2070 });
1752 2071
1785 2104
1786# here we export the classes and methods available to script code 2105# here we export the classes and methods available to script code
1787 2106
1788=pod 2107=pod
1789 2108
1790The following fucntions and emthods are available within a safe environment: 2109The following functions and methods are available within a safe environment:
1791 2110
1792 cf::object contr pay_amount pay_player map 2111 cf::object contr pay_amount pay_player map
1793 cf::object::player player 2112 cf::object::player player
1794 cf::player peaceful 2113 cf::player peaceful
1795 cf::map trigger 2114 cf::map trigger
1888The parameter C<$family> should best start with the name of the extension 2207The parameter C<$family> should best start with the name of the extension
1889using it, it should be unique. 2208using it, it should be unique.
1890 2209
1891=over 4 2210=over 4
1892 2211
1893=item $hashref = cf::db_get $family
1894
1895Return a hashref for use by the extension C<$family>, which can be
1896modified. After modifications, you have to call C<cf::db_dirty> or
1897C<cf::db_sync>.
1898
1899=item $value = cf::db_get $family => $key 2212=item $value = cf::db_get $family => $key
1900 2213
1901Returns a single value from the database 2214Returns a single value from the database.
1902
1903=item cf::db_put $family => $hashref
1904
1905Stores the given family hashref into the database. Updates are delayed, if
1906you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907 2215
1908=item cf::db_put $family => $key => $value 2216=item cf::db_put $family => $key => $value
1909 2217
1910Stores the given C<$value> in the family hash. Updates are delayed, if you 2218Stores the given C<$value> in the family.
1911want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913=item cf::db_dirty
1914
1915Marks the database as dirty, to be updated at a later time.
1916
1917=item cf::db_sync
1918
1919Immediately write the database to disk I<if it is dirty>.
1920 2219
1921=cut 2220=cut
1922 2221
1923our $DB; 2222our $DB;
1924 2223
1925{ 2224sub db_init {
2225 unless ($DB) {
2226 $DB = BDB::db_create $DB_ENV;
2227
2228 cf::sync_job {
2229 eval {
2230 $DB->set_flags (BDB::CHKSUM);
2231
2232 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234 cf::cleanup "db_open(db): $!" if $!;
2235 };
2236 cf::cleanup "db_open(db): $@" if $@;
2237 };
2238
1926 my $path = cf::localdir . "/database.pst"; 2239 my $path = cf::localdir . "/database.pst";
2240 if (stat $path) {
2241 cf::sync_job {
2242 my $pst = Storable::retrieve $path;
1927 2243
1928 sub db_load() { 2244 cf::db_put (board => data => $pst->{board});
1929 $DB = stat $path ? Storable::retrieve $path : { }; 2245 cf::db_put (guildrules => data => $pst->{guildrules});
1930 } 2246 cf::db_put (rent => balance => $pst->{rent}{balance});
2247 BDB::db_env_txn_checkpoint $DB_ENV;
1931 2248
1932 my $pid; 2249 unlink $path;
1933
1934 sub db_save() {
1935 waitpid $pid, 0 if $pid;
1936 if (0 == ($pid = fork)) {
1937 $DB->{_meta}{version} = 1;
1938 Storable::nstore $DB, "$path~";
1939 rename "$path~", $path;
1940 cf::_exit 0 if defined $pid;
1941 } 2250 };
1942 } 2251 }
1943
1944 my $dirty;
1945
1946 sub db_sync() {
1947 db_save if $dirty;
1948 undef $dirty;
1949 }
1950
1951 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952 db_sync;
1953 }); 2252 }
2253}
1954 2254
1955 sub db_dirty() {
1956 $dirty = 1;
1957 $idle->start;
1958 }
1959
1960 sub db_get($;$) { 2255sub db_get($$) {
1961 @_ >= 2 2256 my $key = "$_[0]/$_[1]";
1962 ? $DB->{$_[0]}{$_[1]}
1963 : ($DB->{$_[0]} ||= { })
1964 }
1965 2257
2258 cf::sync_job {
2259 BDB::db_get $DB, undef, $key, my $data;
2260
2261 $! ? ()
2262 : Compress::LZF::sthaw $data
2263 }
2264}
2265
1966 sub db_put($$;$) { 2266sub db_put($$$) {
1967 if (@_ >= 3) { 2267 BDB::dbreq_pri 4;
1968 $DB->{$_[0]}{$_[1]} = $_[2]; 2268 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269}
2270
2271#############################################################################
2272# the server's init and main functions
2273
2274sub load_facedata {
2275 my $path = sprintf "%s/facedata", cf::datadir;
2276
2277 warn "loading facedata from $path\n";
2278
2279 my $faces;
2280 0 < aio_load $path, $faces
2281 or die "$path: $!";
2282
2283 Coro::cede;
2284 $faces = Storable::thaw $faces;
2285 Coro::cede;
2286
2287 my $meta = delete $faces->{""};
2288 $meta->{version} == 1
2289 or cf::cleanup "$path: version mismatch, cannot proceed.";
2290
2291 while (my ($face, $info) = each %$faces) {
2292 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2293 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2294 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2295 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2296 Coro::cede;
2297 }
2298
2299 while (my ($face, $info) = each %$faces) {
2300 next unless $info->{smooth};
2301 my $idx = cf::face::find $face
2302 or next;
2303 if (my $smooth = cf::face::find $info->{smooth}) {
2304 cf::face::set_smooth $idx, $smooth;
1969 } else { 2305 } else {
1970 $DB->{$_[0]} = $_[1]; 2306 warn "smooth face '$info->{smooth}' not found for face '$face'";
1971 }
1972 db_dirty;
1973 }
1974
1975 cf::global->attach (
1976 prio => 10000,
1977 on_cleanup => sub {
1978 db_sync;
1979 }, 2307 }
1980 ); 2308 Coro::cede;
1981} 2309 }
1982 2310
1983############################################################################# 2311 1
1984# the server's main() 2312}
2313
2314sub reload_resources {
2315 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2316 or die "unable to load regions file\n";#d#
2317 load_facedata
2318 or die "unable to load facedata\n";#d#
2319}
2320
2321sub init {
2322 reload_resources;
2323}
1985 2324
1986sub cfg_load { 2325sub cfg_load {
1987 open my $fh, "<:utf8", cf::confdir . "/config" 2326 open my $fh, "<:utf8", cf::confdir . "/config"
1988 or return; 2327 or return;
1989 2328
1990 local $/; 2329 local $/;
1991 *CFG = YAML::Syck::Load <$fh>; 2330 *CFG = YAML::Syck::Load <$fh>;
1992 2331
1993 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 2332 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994 2333
2334 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2335 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2336
1995 if (exists $CFG{mlockall}) { 2337 if (exists $CFG{mlockall}) {
1996 eval { 2338 eval {
1997 $CFG{mlockall} ? &mlockall : &munlockall 2339 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998 and die "WARNING: m(un)lockall failed: $!\n"; 2340 and die "WARNING: m(un)lockall failed: $!\n";
1999 }; 2341 };
2000 warn $@ if $@; 2342 warn $@ if $@;
2001 } 2343 }
2002} 2344}
2003 2345
2004sub main { 2346sub main {
2005 # we must not ever block the main coroutine 2347 # we must not ever block the main coroutine
2006 local $Coro::idle = sub { 2348 local $Coro::idle = sub {
2007 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2349 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008 (Coro::unblock_sub { 2350 (async {
2009 Event::one_event; 2351 Event::one_event;
2010 })->(); 2352 })->prio (Coro::PRIO_MAX);
2011 }; 2353 };
2012 2354
2013 cfg_load; 2355 cfg_load;
2014 db_load; 2356 db_init;
2015 load_extensions; 2357 load_extensions;
2358
2359 $TICK_WATCHER->start;
2016 Event::loop; 2360 Event::loop;
2017} 2361}
2018 2362
2019############################################################################# 2363#############################################################################
2020# initialisation 2364# initialisation and cleanup
2365
2366# install some emergency cleanup handlers
2367BEGIN {
2368 for my $signal (qw(INT HUP TERM)) {
2369 Event->signal (
2370 reentrant => 0,
2371 data => WF_AUTOCANCEL,
2372 signal => $signal,
2373 prio => 0,
2374 cb => sub {
2375 cf::cleanup "SIG$signal";
2376 },
2377 );
2378 }
2379}
2380
2381sub emergency_save() {
2382 my $freeze_guard = cf::freeze_mainloop;
2383
2384 warn "enter emergency perl save\n";
2385
2386 cf::sync_job {
2387 # use a peculiar iteration method to avoid tripping on perl
2388 # refcount bugs in for. also avoids problems with players
2389 # and maps saved/destroyed asynchronously.
2390 warn "begin emergency player save\n";
2391 for my $login (keys %cf::PLAYER) {
2392 my $pl = $cf::PLAYER{$login} or next;
2393 $pl->valid or next;
2394 $pl->save;
2395 }
2396 warn "end emergency player save\n";
2397
2398 warn "begin emergency map save\n";
2399 for my $path (keys %cf::MAP) {
2400 my $map = $cf::MAP{$path} or next;
2401 $map->valid or next;
2402 $map->save;
2403 }
2404 warn "end emergency map save\n";
2405
2406 warn "begin emergency database checkpoint\n";
2407 BDB::db_env_txn_checkpoint $DB_ENV;
2408 warn "end emergency database checkpoint\n";
2409 };
2410
2411 warn "leave emergency perl save\n";
2412}
2413
2414sub post_cleanup {
2415 my ($make_core) = @_;
2416
2417 warn Carp::longmess "post_cleanup backtrace"
2418 if $make_core;
2419}
2021 2420
2022sub reload() { 2421sub reload() {
2023 # can/must only be called in main 2422 # can/must only be called in main
2024 if ($Coro::current != $Coro::main) { 2423 if ($Coro::current != $Coro::main) {
2025 warn "can only reload from main coroutine\n"; 2424 warn "can only reload from main coroutine";
2026 return; 2425 return;
2027 } 2426 }
2028 2427
2029 warn "reloading..."; 2428 warn "reloading...";
2030 2429
2031 my $guard = freeze_mainloop; 2430 warn "entering sync_job";
2431
2432 cf::sync_job {
2433 cf::write_runtime; # external watchdog should not bark
2032 cf::emergency_save; 2434 cf::emergency_save;
2435 cf::write_runtime; # external watchdog should not bark
2033 2436
2034 eval { 2437 warn "syncing database to disk";
2438 BDB::db_env_txn_checkpoint $DB_ENV;
2439
2035 # if anything goes wrong in here, we should simply crash as we already saved 2440 # if anything goes wrong in here, we should simply crash as we already saved
2036 2441
2037 # cancel all watchers 2442 warn "cancelling all WF_AUTOCANCEL watchers";
2038 for (Event::all_watchers) { 2443 for (Event::all_watchers) {
2039 $_->cancel if $_->data & WF_AUTOCANCEL; 2444 $_->cancel if $_->data & WF_AUTOCANCEL;
2040 } 2445 }
2041 2446
2447 warn "flushing outstanding aio requests";
2448 for (;;) {
2449 BDB::flush;
2450 IO::AIO::flush;
2451 Coro::cede;
2452 last unless IO::AIO::nreqs || BDB::nreqs;
2453 warn "iterate...";
2454 }
2455
2456 ++$RELOAD;
2457
2042 # cancel all extension coros 2458 warn "cancelling all extension coros";
2043 $_->cancel for values %EXT_CORO; 2459 $_->cancel for values %EXT_CORO;
2044 %EXT_CORO = (); 2460 %EXT_CORO = ();
2045 2461
2046 # unload all extensions 2462 warn "removing commands";
2047 for (@exts) { 2463 %COMMAND = ();
2464
2465 warn "removing ext commands";
2466 %EXTCMD = ();
2467
2468 warn "unloading/nuking all extensions";
2469 for my $pkg (@EXTS) {
2048 warn "unloading <$_>"; 2470 warn "... unloading $pkg";
2049 unload_extension $_; 2471
2472 if (my $cb = $pkg->can ("unload")) {
2473 eval {
2474 $cb->($pkg);
2475 1
2476 } or warn "$pkg unloaded, but with errors: $@";
2050 } 2477 }
2051 2478
2479 warn "... nuking $pkg";
2480 Symbol::delete_package $pkg;
2481 }
2482
2052 # unload all modules loaded from $LIBDIR 2483 warn "unloading all perl modules loaded from $LIBDIR";
2053 while (my ($k, $v) = each %INC) { 2484 while (my ($k, $v) = each %INC) {
2054 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2485 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055 2486
2056 warn "removing <$k>"; 2487 warn "... unloading $k";
2057 delete $INC{$k}; 2488 delete $INC{$k};
2058 2489
2059 $k =~ s/\.pm$//; 2490 $k =~ s/\.pm$//;
2060 $k =~ s/\//::/g; 2491 $k =~ s/\//::/g;
2061 2492
2064 } 2495 }
2065 2496
2066 Symbol::delete_package $k; 2497 Symbol::delete_package $k;
2067 } 2498 }
2068 2499
2069 # sync database to disk
2070 cf::db_sync;
2071 IO::AIO::flush;
2072
2073 # get rid of safe::, as good as possible 2500 warn "getting rid of safe::, as good as possible";
2074 Symbol::delete_package "safe::$_" 2501 Symbol::delete_package "safe::$_"
2075 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2502 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076 2503
2077 # remove register_script_function callbacks
2078 # TODO
2079
2080 # unload cf.pm "a bit" 2504 warn "unloading cf.pm \"a bit\"";
2081 delete $INC{"cf.pm"}; 2505 delete $INC{"cf.pm"};
2082 2506
2083 # don't, removes xs symbols, too, 2507 # don't, removes xs symbols, too,
2084 # and global variables created in xs 2508 # and global variables created in xs
2085 #Symbol::delete_package __PACKAGE__; 2509 #Symbol::delete_package __PACKAGE__;
2086 2510
2087 # reload cf.pm 2511 warn "unload completed, starting to reload now";
2512
2088 warn "reloading cf.pm"; 2513 warn "reloading cf.pm";
2089 require cf; 2514 require cf;
2090 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2515 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091 2516
2092 # load config and database again 2517 warn "loading config and database again";
2093 cf::cfg_load; 2518 cf::cfg_load;
2094 cf::db_load;
2095 2519
2096 # load extensions
2097 warn "load extensions"; 2520 warn "loading extensions";
2098 cf::load_extensions; 2521 cf::load_extensions;
2099 2522
2100 # reattach attachments to objects 2523 warn "reattaching attachments to objects/players";
2101 warn "reattach"; 2524 _global_reattach; # objects, sockets
2102 _global_reattach; 2525 warn "reattaching attachments to maps";
2103 }; 2526 reattach $_ for values %MAP;
2527 warn "reattaching attachments to players";
2528 reattach $_ for values %PLAYER;
2104 2529
2105 if ($@) { 2530 warn "loading reloadable resources";
2531 reload_resources;
2532
2533 warn "leaving sync_job";
2534
2535 1
2536 } or do {
2106 warn $@; 2537 warn $@;
2107 warn "error while reloading, exiting."; 2538 warn "error while reloading, exiting.";
2108 exit 1; 2539 exit 1;
2109 } 2540 };
2110 2541
2111 warn "reloaded successfully"; 2542 warn "reloaded";
2112}; 2543};
2113 2544
2114############################################################################# 2545our $RELOAD_WATCHER; # used only during reload
2115
2116unless ($LINK_MAP) {
2117 $LINK_MAP = cf::map::new;
2118
2119 $LINK_MAP->width (41);
2120 $LINK_MAP->height (41);
2121 $LINK_MAP->alloc;
2122 $LINK_MAP->path ("{link}");
2123 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126 # dirty hack because... archetypes are not yet loaded
2127 Event->timer (
2128 after => 2,
2129 cb => sub {
2130 $_[0]->w->cancel;
2131
2132 # provide some exits "home"
2133 my $exit = cf::object::new "exit";
2134
2135 $exit->slaying ($EMERGENCY_POSITION->[0]);
2136 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139 $LINK_MAP->insert ($exit->clone, 19, 19);
2140 $LINK_MAP->insert ($exit->clone, 19, 20);
2141 $LINK_MAP->insert ($exit->clone, 19, 21);
2142 $LINK_MAP->insert ($exit->clone, 20, 19);
2143 $LINK_MAP->insert ($exit->clone, 20, 21);
2144 $LINK_MAP->insert ($exit->clone, 21, 19);
2145 $LINK_MAP->insert ($exit->clone, 21, 20);
2146 $LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148 $exit->destroy;
2149 });
2150
2151 $LINK_MAP->{deny_save} = 1;
2152 $LINK_MAP->{deny_reset} = 1;
2153
2154 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155}
2156
2157register "<global>", __PACKAGE__;
2158 2546
2159register_command "reload" => sub { 2547register_command "reload" => sub {
2160 my ($who, $arg) = @_; 2548 my ($who, $arg) = @_;
2161 2549
2162 if ($who->flag (FLAG_WIZ)) { 2550 if ($who->flag (FLAG_WIZ)) {
2163 $who->message ("start of reload."); 2551 $who->message ("reloading server.");
2552
2553 # doing reload synchronously and two reloads happen back-to-back,
2554 # coro crashes during coro_state_free->destroy here.
2555
2556 $RELOAD_WATCHER ||= Event->timer (
2557 reentrant => 0,
2558 after => 0,
2559 data => WF_AUTOCANCEL,
2560 cb => sub {
2164 reload; 2561 reload;
2165 $who->message ("end of reload."); 2562 undef $RELOAD_WATCHER;
2563 },
2564 );
2166 } 2565 }
2167}; 2566};
2168 2567
2169unshift @INC, $LIBDIR; 2568unshift @INC, $LIBDIR;
2569
2570my $bug_warning = 0;
2170 2571
2171$TICK_WATCHER = Event->timer ( 2572$TICK_WATCHER = Event->timer (
2172 reentrant => 0, 2573 reentrant => 0,
2574 parked => 1,
2173 prio => 0, 2575 prio => 0,
2174 at => $NEXT_TICK || $TICK, 2576 at => $NEXT_TICK || $TICK,
2175 data => WF_AUTOCANCEL, 2577 data => WF_AUTOCANCEL,
2176 cb => sub { 2578 cb => sub {
2579 if ($Coro::current != $Coro::main) {
2580 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2581 unless ++$bug_warning > 10;
2582 return;
2583 }
2584
2585 $NOW = Event::time;
2586
2177 cf::server_tick; # one server iteration 2587 cf::server_tick; # one server iteration
2178 $RUNTIME += $TICK; 2588 $RUNTIME += $TICK;
2179 $NEXT_TICK += $TICK; 2589 $NEXT_TICK += $TICK;
2590
2591 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2592 $NEXT_RUNTIME_WRITE = $NOW + 10;
2593 Coro::async_pool {
2594 write_runtime
2595 or warn "ERROR: unable to write runtime file: $!";
2596 };
2597 }
2598
2599 $WAIT_FOR_TICK->broadcast;
2600 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2601
2602# my $AFTER = Event::time;
2603# warn $AFTER - $NOW;#d#
2180 2604
2181 # if we are delayed by four ticks or more, skip them all 2605 # if we are delayed by four ticks or more, skip them all
2182 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2606 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2183 2607
2184 $TICK_WATCHER->at ($NEXT_TICK); 2608 $TICK_WATCHER->at ($NEXT_TICK);
2185 $TICK_WATCHER->start; 2609 $TICK_WATCHER->start;
2186 }, 2610 },
2187); 2611);
2188 2612
2613{
2189IO::AIO::max_poll_time $TICK * 0.2; 2614 BDB::max_poll_time $TICK * 0.1;
2190 2615 $BDB_POLL_WATCHER = Event->io (
2191Event->io ( 2616 reentrant => 0,
2192 fd => IO::AIO::poll_fileno, 2617 fd => BDB::poll_fileno,
2193 poll => 'r', 2618 poll => 'r',
2194 prio => 5, 2619 prio => 0,
2195 data => WF_AUTOCANCEL,
2196 cb => \&IO::AIO::poll_cb,
2197);
2198
2199Event->timer (
2200 data => WF_AUTOCANCEL, 2620 data => WF_AUTOCANCEL,
2201 after => 0, 2621 cb => \&BDB::poll_cb,
2202 interval => 10, 2622 );
2203 cb => sub { 2623 BDB::min_parallel 8;
2204 (Coro::unblock_sub { 2624
2205 write_runtime 2625 BDB::set_sync_prepare {
2206 or warn "ERROR: unable to write runtime file: $!"; 2626 my $status;
2627 my $current = $Coro::current;
2628 (
2629 sub {
2630 $status = $!;
2631 $current->ready; undef $current;
2632 },
2633 sub {
2634 Coro::schedule while defined $current;
2635 $! = $status;
2636 },
2637 )
2638 };
2639
2640 unless ($DB_ENV) {
2641 $DB_ENV = BDB::db_env_create;
2642
2643 cf::sync_job {
2644 eval {
2645 BDB::db_env_open
2646 $DB_ENV,
2647 $BDB_ENV_DIR,
2648 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2649 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2650 0666;
2651
2652 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;
2653
2654 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2655 $DB_ENV->set_lk_detect;
2656 };
2657
2658 cf::cleanup "db_env_open(db): $@" if $@;
2207 })->(); 2659 };
2208 }, 2660 }
2209); 2661}
2662
2663{
2664 IO::AIO::min_parallel 8;
2665
2666 undef $Coro::AIO::WATCHER;
2667 IO::AIO::max_poll_time $TICK * 0.1;
2668 $AIO_POLL_WATCHER = Event->io (
2669 reentrant => 0,
2670 data => WF_AUTOCANCEL,
2671 fd => IO::AIO::poll_fileno,
2672 poll => 'r',
2673 prio => 6,
2674 cb => \&IO::AIO::poll_cb,
2675 );
2676}
2210 2677
2211END { cf::emergency_save } 2678END { cf::emergency_save }
2212 2679
22131 26801
2214 2681

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