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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.143 by root, Sun Jan 7 02:39:14 2007 UTC vs.
Revision 1.354 by root, Sun Sep 2 12:26:54 2007 UTC

3use utf8; 3use utf8;
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Socket;
8use Storable; 9use Storable;
10use Event;
9use Opcode; 11use Opcode;
10use Safe; 12use Safe;
11use Safe::Hole; 13use Safe::Hole;
12 14
13use Coro 3.3 (); 15use Coro 3.64 ();
16use Coro::State;
17use Coro::Handle;
14use Coro::Event; 18use Coro::Event;
15use Coro::Timer; 19use Coro::Timer;
16use Coro::Signal; 20use Coro::Signal;
17use Coro::Semaphore; 21use Coro::Semaphore;
18use Coro::AIO; 22use Coro::AIO;
23use Coro::Storable;
24use Coro::Util ();
19 25
26use JSON::XS ();
27use BDB ();
28use Data::Dumper;
20use Digest::MD5; 29use Digest::MD5;
21use Fcntl; 30use Fcntl;
22use IO::AIO 2.31 ();
23use YAML::Syck (); 31use YAML::Syck ();
32use IO::AIO 2.32 ();
24use Time::HiRes; 33use Time::HiRes;
34use Compress::LZF;
35use Digest::MD5 ();
25 36
37# configure various modules to our taste
38#
39$Storable::canonical = 1; # reduce rsync transfers
40Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
41Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
42
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 43$Event::Eval = 1; # no idea why this is required, but it is
27 44
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 45# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1; 46$YAML::Syck::ImplicitUnicode = 1;
30 47
31$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 48$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32 49
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 50sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 51
35our %COMMAND = (); 52our %COMMAND = ();
36our %COMMAND_TIME = (); 53our %COMMAND_TIME = ();
54
55our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 56our %EXTCMD = ();
57our %EXTICMD = ();
58our %EXT_CORO = (); # coroutines bound to extensions
59our %EXT_MAP = (); # pluggable maps
38 60
61our $RELOAD; # number of reloads so far
39our @EVENT; 62our @EVENT;
40our $LIBDIR = datadir . "/ext";
41 63
42our $TICK = MAX_TIME * 1e-6; 64our $CONFDIR = confdir;
65our $DATADIR = datadir;
66our $LIBDIR = "$DATADIR/ext";
67our $PODDIR = "$DATADIR/pod";
68our $MAPDIR = "$DATADIR/" . mapdir;
69our $LOCALDIR = localdir;
70our $TMPDIR = "$LOCALDIR/" . tmpdir;
71our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
72our $PLAYERDIR = "$LOCALDIR/" . playerdir;
73our $RANDOMDIR = "$LOCALDIR/random";
74our $BDBDIR = "$LOCALDIR/db";
75
76our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43our $TICK_WATCHER; 77our $TICK_WATCHER;
78our $AIO_POLL_WATCHER;
79our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44our $NEXT_TICK; 80our $NEXT_TICK;
45our $NOW; 81our $NOW;
82our $USE_FSYNC = 1; # use fsync to write maps - default off
83
84our $BDB_POLL_WATCHER;
85our $DB_ENV;
46 86
47our %CFG; 87our %CFG;
48 88
49our $UPTIME; $UPTIME ||= time; 89our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 90our $RUNTIME;
51 91
52our %PLAYER; # all users 92our %PLAYER; # all users
53our %MAP; # all maps 93our %MAP; # all maps
54our $LINK_MAP; # the special {link} map 94our $LINK_MAP; # the special {link} map, which is always available
55our $RANDOM_MAPS = cf::localdir . "/random"; 95
56our %EXT_CORO; # coroutines bound to extensions 96# used to convert map paths into valid unix filenames by replacing / by ∕
97our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
98
99our $LOAD; # a number between 0 (idle) and 1 (too many objects)
100our $LOADAVG; # same thing, but with alpha-smoothing
101our $tick_start; # for load detecting purposes
57 102
58binmode STDOUT; 103binmode STDOUT;
59binmode STDERR; 104binmode STDERR;
60 105
61# read virtual server time, if available 106# read virtual server time, if available
62unless ($RUNTIME || !-e cf::localdir . "/runtime") { 107unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63 open my $fh, "<", cf::localdir . "/runtime" 108 open my $fh, "<", "$LOCALDIR/runtime"
64 or die "unable to read runtime file: $!"; 109 or die "unable to read runtime file: $!";
65 $RUNTIME = <$fh> + 0.; 110 $RUNTIME = <$fh> + 0.;
66} 111}
67 112
68mkdir cf::localdir; 113mkdir $_
69mkdir cf::localdir . "/" . cf::playerdir; 114 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS;
73 115
74# a special map that is always available
75our $LINK_MAP;
76our $EMERGENCY_POSITION; 116our $EMERGENCY_POSITION;
117
118sub cf::map::normalise;
77 119
78############################################################################# 120#############################################################################
79 121
80=head2 GLOBAL VARIABLES 122=head2 GLOBAL VARIABLES
81 123
88=item $cf::RUNTIME 130=item $cf::RUNTIME
89 131
90The time this server has run, starts at 0 and is increased by $cf::TICK on 132The time this server has run, starts at 0 and is increased by $cf::TICK on
91every server tick. 133every server tick.
92 134
93=item $cf::LIBDIR 135=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
136$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
137$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94 138
95The perl library directory, where extensions and cf-specific modules can 139Various directories - "/etc", read-only install directory, perl-library
96be found. It will be added to C<@INC> automatically. 140directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
141unique-items directory, player file directory, random maps directory and
142database environment.
97 143
98=item $cf::NOW 144=item $cf::NOW
99 145
100The time of the last (current) server tick. 146The time of the last (current) server tick.
101 147
102=item $cf::TICK 148=item $cf::TICK
103 149
104The interval between server ticks, in seconds. 150The interval between server ticks, in seconds.
151
152=item $cf::LOADAVG
153
154The current CPU load on the server (alpha-smoothed), as a value between 0
155(none) and 1 (overloaded), indicating how much time is spent on processing
156objects per tick. Healthy values are < 0.5.
157
158=item $cf::LOAD
159
160The raw value load value from the last tick.
105 161
106=item %cf::CFG 162=item %cf::CFG
107 163
108Configuration for the server, loaded from C</etc/crossfire/config>, or 164Configuration for the server, loaded from C</etc/crossfire/config>, or
109from wherever your confdir points to. 165from wherever your confdir points to.
166
167=item cf::wait_for_tick, cf::wait_for_tick_begin
168
169These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
170returns directly I<after> the tick processing (and consequently, can only wake one process
171per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
172
173=item @cf::INVOKE_RESULTS
174
175This array contains the results of the last C<invoke ()> call. When
176C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
177that call.
110 178
111=back 179=back
112 180
113=cut 181=cut
114 182
115BEGIN { 183BEGIN {
116 *CORE::GLOBAL::warn = sub { 184 *CORE::GLOBAL::warn = sub {
117 my $msg = join "", @_; 185 my $msg = join "", @_;
118 utf8::encode $msg;
119 186
120 $msg .= "\n" 187 $msg .= "\n"
121 unless $msg =~ /\n$/; 188 unless $msg =~ /\n$/;
122 189
190 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
191
192 utf8::encode $msg;
123 LOG llevError, "cfperl: $msg"; 193 LOG llevError, $msg;
124 }; 194 };
125} 195}
126 196
127@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 197@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 198@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 199@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 200@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 201@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
202@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 203@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133 204
134# we bless all objects into (empty) derived classes to force a method lookup 205# we bless all objects into (empty) derived classes to force a method lookup
135# within the Safe compartment. 206# within the Safe compartment.
136for my $pkg (qw( 207for my $pkg (qw(
137 cf::global cf::attachable 208 cf::global cf::attachable
146 217
147$Event::DIED = sub { 218$Event::DIED = sub {
148 warn "error in event callback: @_"; 219 warn "error in event callback: @_";
149}; 220};
150 221
151my %ext_pkg; 222#############################################################################
152my @exts;
153my @hook;
154 223
155=head2 UTILITY FUNCTIONS 224=head2 UTILITY FUNCTIONS
156 225
157=over 4 226=over 4
158 227
159=cut 228=item dumpval $ref
160 229
161use JSON::Syck (); # TODO# replace by JSON::PC once working 230=cut
231
232sub dumpval {
233 eval {
234 local $SIG{__DIE__};
235 my $d;
236 if (1) {
237 $d = new Data::Dumper([$_[0]], ["*var"]);
238 $d->Terse(1);
239 $d->Indent(2);
240 $d->Quotekeys(0);
241 $d->Useqq(1);
242 #$d->Bless(...);
243 $d->Seen($_[1]) if @_ > 1;
244 $d = $d->Dump();
245 }
246 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
247 $d
248 } || "[unable to dump $_[0]: '$@']";
249}
162 250
163=item $ref = cf::from_json $json 251=item $ref = cf::from_json $json
164 252
165Converts a JSON string into the corresponding perl data structure. 253Converts a JSON string into the corresponding perl data structure.
166 254
167=cut
168
169sub from_json($) {
170 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171 JSON::Syck::Load $_[0]
172}
173
174=item $json = cf::to_json $ref 255=item $json = cf::to_json $ref
175 256
176Converts a perl data structure into its JSON representation. 257Converts a perl data structure into its JSON representation.
177 258
178=cut 259=cut
179 260
180sub to_json($) { 261our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 262
182 JSON::Syck::Dump $_[0] 263sub to_json ($) { $json_coder->encode ($_[0]) }
183} 264sub from_json ($) { $json_coder->decode ($_[0]) }
184 265
185=item cf::lock_wait $string 266=item cf::lock_wait $string
186 267
187Wait until the given lock is available. See cf::lock_acquire. 268Wait until the given lock is available. See cf::lock_acquire.
188 269
191Wait until the given lock is available and then acquires it and returns 272Wait until the given lock is available and then acquires it and returns
192a Coro::guard object. If the guard object gets destroyed (goes out of scope, 273a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193for example when the coroutine gets canceled), the lock is automatically 274for example when the coroutine gets canceled), the lock is automatically
194returned. 275returned.
195 276
277Locks are *not* recursive, locking from the same coro twice results in a
278deadlocked coro.
279
196Lock names should begin with a unique identifier (for example, cf::map::find 280Lock names should begin with a unique identifier (for example, cf::map::find
197uses map_find and cf::map::load uses map_load). 281uses map_find and cf::map::load uses map_load).
282
283=item $locked = cf::lock_active $string
284
285Return true if the lock is currently active, i.e. somebody has locked it.
198 286
199=cut 287=cut
200 288
201our %LOCK; 289our %LOCK;
202 290
222 # wake up all waiters, to be on the safe side 310 # wake up all waiters, to be on the safe side
223 $_->ready for @{ delete $LOCK{$key} }; 311 $_->ready for @{ delete $LOCK{$key} };
224 } 312 }
225} 313}
226 314
315sub lock_active($) {
316 my ($key) = @_;
317
318 ! ! $LOCK{$key}
319}
320
227sub freeze_mainloop { 321sub freeze_mainloop {
228 return unless $TICK_WATCHER->is_active; 322 return unless $TICK_WATCHER->is_active;
229 323
230 my $guard = Coro::guard { $TICK_WATCHER->start }; 324 my $guard = Coro::guard {
325 $TICK_WATCHER->start;
326 };
231 $TICK_WATCHER->stop; 327 $TICK_WATCHER->stop;
232 $guard 328 $guard
329}
330
331=item cf::get_slot $time[, $priority[, $name]]
332
333Allocate $time seconds of blocking CPU time at priority C<$priority>:
334This call blocks and returns only when you have at least C<$time> seconds
335of cpu time till the next tick. The slot is only valid till the next cede.
336
337The optional C<$name> can be used to identify the job to run. It might be
338used for statistical purposes and should identify the same time-class.
339
340Useful for short background jobs.
341
342=cut
343
344our @SLOT_QUEUE;
345our $SLOT_QUEUE;
346
347$SLOT_QUEUE->cancel if $SLOT_QUEUE;
348$SLOT_QUEUE = Coro::async {
349 my $signal = new Coro::Signal;
350
351 while () {
352 next_job:
353 my $avail = cf::till_tick;
354 if ($avail > 0.01) {
355 for (0 .. $#SLOT_QUEUE) {
356 if ($SLOT_QUEUE[$_][0] < $avail) {
357 my $job = splice @SLOT_QUEUE, $_, 1, ();
358 $job->[2]->send;
359 Coro::cede;
360 goto next_job;
361 }
362 }
363 }
364
365 if (@SLOT_QUEUE) {
366 # we do not use wait_For_tick() as it returns immediately when tick is inactive
367 push @cf::WAIT_FOR_TICK, $signal;
368 $signal->wait;
369 } else {
370 Coro::schedule;
371 }
372 }
373};
374
375sub get_slot($;$$) {
376 my ($time, $pri, $name) = @_;
377
378 $time = $TICK * .6 if $time > $TICK * .6;
379 my $sig = new Coro::Signal;
380
381 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
382 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
383 $SLOT_QUEUE->ready;
384 $sig->wait;
233} 385}
234 386
235=item cf::async { BLOCK } 387=item cf::async { BLOCK }
236 388
237Currently the same as Coro::async_pool, meaning you cannot use 389Currently the same as Coro::async_pool, meaning you cannot use
242 394
243BEGIN { *async = \&Coro::async_pool } 395BEGIN { *async = \&Coro::async_pool }
244 396
245=item cf::sync_job { BLOCK } 397=item cf::sync_job { BLOCK }
246 398
247The design of crossfire+ requires that the main coro ($Coro::main) is 399The design of Crossfire TRT requires that the main coroutine ($Coro::main)
248always able to handle events or runnable, as crossfire+ is only partly 400is always able to handle events or runnable, as Crossfire TRT is only
249reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 401partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
402acceptable.
250 403
251If it must be done, put the blocking parts into C<sync_job>. This will run 404If it must be done, put the blocking parts into C<sync_job>. This will run
252the given BLOCK in another coroutine while waiting for the result. The 405the given BLOCK in another coroutine while waiting for the result. The
253server will be frozen during this time, so the block should either finish 406server will be frozen during this time, so the block should either finish
254fast or be very important. 407fast or be very important.
257 410
258sub sync_job(&) { 411sub sync_job(&) {
259 my ($job) = @_; 412 my ($job) = @_;
260 413
261 if ($Coro::current == $Coro::main) { 414 if ($Coro::current == $Coro::main) {
415 my $time = Event::time;
416
262 # this is the main coro, too bad, we have to block 417 # this is the main coro, too bad, we have to block
263 # till the operation succeeds, freezing the server :/ 418 # till the operation succeeds, freezing the server :/
264 419
265 # TODO: use suspend/resume instead 420 # TODO: use suspend/resume instead
266 # (but this is cancel-safe) 421 # (but this is cancel-safe)
277 432
278 while ($busy) { 433 while ($busy) {
279 Coro::cede or Event::one_event; 434 Coro::cede or Event::one_event;
280 } 435 }
281 436
437 $time = Event::time - $time;
438
439 LOG llevError | logBacktrace, Carp::longmess "long sync job"
440 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
441
442 $tick_start += $time; # do not account sync jobs to server load
443
282 wantarray ? @res : $res[0] 444 wantarray ? @res : $res[0]
283 } else { 445 } else {
284 # we are in another coroutine, how wonderful, everything just works 446 # we are in another coroutine, how wonderful, everything just works
285 447
286 $job->() 448 $job->()
287 } 449 }
288} 450}
289 451
290=item $coro = cf::async_ext { BLOCK } 452=item $coro = cf::async_ext { BLOCK }
291 453
292Like async, but this coro is automcatially being canceled when the 454Like async, but this coro is automatically being canceled when the
293extension calling this is being unloaded. 455extension calling this is being unloaded.
294 456
295=cut 457=cut
296 458
297sub async_ext(&) { 459sub async_ext(&) {
305 $EXT_CORO{$coro+0} = $coro; 467 $EXT_CORO{$coro+0} = $coro;
306 468
307 $coro 469 $coro
308} 470}
309 471
310sub write_runtime { 472=item fork_call { }, $args
311 my $runtime = cf::localdir . "/runtime";
312 473
313 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 474Executes the given code block with the given arguments in a seperate
314 or return; 475process, returning the results. Everything must be serialisable with
476Coro::Storable. May, of course, block. Note that the executed sub may
477never block itself or use any form of Event handling.
315 478
316 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 479=cut
317 (aio_write $fh, 0, (length $value), $value, 0) <= 0
318 and return;
319 480
320 aio_fsync $fh 481sub fork_call(&@) {
321 and return; 482 my ($cb, @args) = @_;
322 483
323 close $fh 484 # we seemingly have to make a local copy of the whole thing,
324 or return; 485 # otherwise perl prematurely frees the stuff :/
486 # TODO: investigate and fix (liekly this will be rather laborious)
325 487
326 aio_rename "$runtime~", $runtime 488 my @res = Coro::Util::fork_eval {
327 and return; 489 reset_signals;
490 &$cb
491 }, @args;
328 492
493 wantarray ? @res : $res[-1]
494}
495
496=item $value = cf::db_get $family => $key
497
498Returns a single value from the environment database.
499
500=item cf::db_put $family => $key => $value
501
502Stores the given C<$value> in the family. It can currently store binary
503data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
504
505=cut
506
507our $DB;
508
509sub db_init {
510 unless ($DB) {
511 $DB = BDB::db_create $DB_ENV;
512
513 cf::sync_job {
514 eval {
515 $DB->set_flags (BDB::CHKSUM);
516
517 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
518 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
519 cf::cleanup "db_open(db): $!" if $!;
520 };
521 cf::cleanup "db_open(db): $@" if $@;
522 };
329 1 523 }
524}
525
526sub db_get($$) {
527 my $key = "$_[0]/$_[1]";
528
529 cf::sync_job {
530 BDB::db_get $DB, undef, $key, my $data;
531
532 $! ? ()
533 : $data
534 }
535}
536
537sub db_put($$$) {
538 BDB::dbreq_pri 4;
539 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
540}
541
542=item cf::cache $id => [$paths...], $processversion => $process
543
544Generic caching function that returns the value of the resource $id,
545caching and regenerating as required.
546
547This function can block.
548
549=cut
550
551sub cache {
552 my ($id, $src, $processversion, $process) = @_;
553
554 my $meta =
555 join "\x00",
556 $processversion,
557 map {
558 aio_stat $_
559 and Carp::croak "$_: $!";
560
561 ($_, (stat _)[7,9])
562 } @$src;
563
564 my $dbmeta = db_get cache => "$id/meta";
565 if ($dbmeta ne $meta) {
566 # changed, we may need to process
567
568 my @data;
569 my $md5;
570
571 for (0 .. $#$src) {
572 0 <= aio_load $src->[$_], $data[$_]
573 or Carp::croak "$src->[$_]: $!";
574 }
575
576 # if processing is expensive, check
577 # checksum first
578 if (1) {
579 $md5 =
580 join "\x00",
581 $processversion,
582 map {
583 cf::cede_to_tick;
584 ($src->[$_], Digest::MD5::md5_hex $data[$_])
585 } 0.. $#$src;
586
587
588 my $dbmd5 = db_get cache => "$id/md5";
589 if ($dbmd5 eq $md5) {
590 db_put cache => "$id/meta", $meta;
591
592 return db_get cache => "$id/data";
593 }
594 }
595
596 my $t1 = Time::HiRes::time;
597 my $data = $process->(\@data);
598 my $t2 = Time::HiRes::time;
599
600 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
601
602 db_put cache => "$id/data", $data;
603 db_put cache => "$id/md5" , $md5;
604 db_put cache => "$id/meta", $meta;
605
606 return $data;
607 }
608
609 db_get cache => "$id/data"
610}
611
612=item cf::datalog type => key => value, ...
613
614Log a datalog packet of the given type with the given key-value pairs.
615
616=cut
617
618sub datalog($@) {
619 my ($type, %kv) = @_;
620 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330} 621}
331 622
332=back 623=back
333 624
334=cut 625=cut
335
336#############################################################################
337
338package cf::path;
339
340sub new {
341 my ($class, $path, $base) = @_;
342
343 $path = $path->as_string if ref $path;
344
345 my $self = bless { }, $class;
346
347 # {... are special paths that are not touched
348 # ?xxx/... are special absolute paths
349 # ?random/... random maps
350 # /! non-realised random map exit
351 # /... normal maps
352 # ~/... per-player maps without a specific player (DO NOT USE)
353 # ~user/... per-player map of a specific user
354
355 if ($path =~ /^{/) {
356 # fine as it is
357 } elsif ($path =~ s{^\?random/}{}) {
358 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359 $self->{random} = cf::from_json $data;
360 } else {
361 if ($path =~ s{^~([^/]+)?}{}) {
362 $self->{user_rel} = 1;
363
364 if (defined $1) {
365 $self->{user} = $1;
366 } elsif ($base =~ m{^~([^/]+)/}) {
367 $self->{user} = $1;
368 } else {
369 warn "cannot resolve user-relative path without user <$path,$base>\n";
370 }
371 } elsif ($path =~ /^\//) {
372 # already absolute
373 } else {
374 $base =~ s{[^/]+/?$}{};
375 return $class->new ("$base/$path");
376 }
377
378 for ($path) {
379 redo if s{/\.?/}{/};
380 redo if s{/[^/]+/\.\./}{/};
381 }
382 }
383
384 $self->{path} = $path;
385
386 $self
387}
388
389# the name / primary key / in-game path
390sub as_string {
391 my ($self) = @_;
392
393 $self->{user_rel} ? "~$self->{user}$self->{path}"
394 : $self->{random} ? "?random/$self->{path}"
395 : $self->{path}
396}
397
398# the displayed name, this is a one way mapping
399sub visible_name {
400 my ($self) = @_;
401
402# if (my $rmp = $self->{random}) {
403# # todo: be more intelligent about this
404# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405# } else {
406 $self->as_string
407# }
408}
409
410# escape the /'s in the path
411sub _escaped_path {
412 # ∕ is U+2215
413 (my $path = $_[0]{path}) =~ s/\//∕/g;
414 $path
415}
416
417# the original (read-only) location
418sub load_path {
419 my ($self) = @_;
420
421 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422}
423
424# the temporary/swap location
425sub save_path {
426 my ($self) = @_;
427
428 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431}
432
433# the unique path, might be eq to save_path
434sub uniq_path {
435 my ($self) = @_;
436
437 $self->{user_rel} || $self->{random}
438 ? undef
439 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440}
441
442# return random map parameters, or undef
443sub random_map_params {
444 my ($self) = @_;
445
446 $self->{random}
447}
448
449# this is somewhat ugly, but style maps do need special treatment
450sub is_style_map {
451 $_[0]{path} =~ m{^/styles/}
452}
453
454package cf;
455 626
456############################################################################# 627#############################################################################
457 628
458=head2 ATTACHABLE OBJECTS 629=head2 ATTACHABLE OBJECTS
459 630
461attach callbacks/event handlers (a collection of which is called an "attachment") 632attach callbacks/event handlers (a collection of which is called an "attachment")
462to it. All such attachable objects support the following methods. 633to it. All such attachable objects support the following methods.
463 634
464In the following description, CLASS can be any of C<global>, C<object> 635In the following description, CLASS can be any of C<global>, C<object>
465C<player>, C<client> or C<map> (i.e. the attachable objects in 636C<player>, C<client> or C<map> (i.e. the attachable objects in
466crossfire+). 637Crossfire TRT).
467 638
468=over 4 639=over 4
469 640
470=item $attachable->attach ($attachment, key => $value...) 641=item $attachable->attach ($attachment, key => $value...)
471 642
585our @CB_TYPE = (); # registry for type (cf-object class) based events 756our @CB_TYPE = (); # registry for type (cf-object class) based events
586our @CB_MAP = (); 757our @CB_MAP = ();
587 758
588my %attachment; 759my %attachment;
589 760
761sub cf::attachable::thawer_merge {
762 # simply override everything except _meta
763 local $_[0]{_meta};
764 %{$_[0]} = %{$_[1]};
765}
766
590sub _attach_cb($$$$) { 767sub _attach_cb($$$$) {
591 my ($registry, $event, $prio, $cb) = @_; 768 my ($registry, $event, $prio, $cb) = @_;
592 769
593 use sort 'stable'; 770 use sort 'stable';
594 771
628 $registry = $CB_TYPE[$object_type] ||= []; 805 $registry = $CB_TYPE[$object_type] ||= [];
629 806
630 } elsif ($type eq "subtype") { 807 } elsif ($type eq "subtype") {
631 defined $object_type or Carp::croak "subtype specified without type"; 808 defined $object_type or Carp::croak "subtype specified without type";
632 my $object_subtype = shift @arg; 809 my $object_subtype = shift @arg;
633 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 810 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634 811
635 } elsif ($type eq "package") { 812 } elsif ($type eq "package") {
636 my $pkg = shift @arg; 813 my $pkg = shift @arg;
637 814
638 while (my ($name, $id) = each %cb_id) { 815 while (my ($name, $id) = each %cb_id) {
667 _attach $registry, $klass, @attach; 844 _attach $registry, $klass, @attach;
668 } 845 }
669 846
670 $obj->{$name} = \%arg; 847 $obj->{$name} = \%arg;
671 } else { 848 } else {
672 warn "object uses attachment '$name' that is not available, postponing.\n"; 849 warn "object uses attachment '$name' which is not available, postponing.\n";
673 } 850 }
674 851
675 $obj->{_attachment}{$name} = undef; 852 $obj->{_attachment}{$name} = undef;
676} 853}
677 854
679 if (ref $_[0]) { 856 if (ref $_[0]) {
680 _object_attach @_; 857 _object_attach @_;
681 } else { 858 } else {
682 _attach shift->_attach_registry, @_; 859 _attach shift->_attach_registry, @_;
683 } 860 }
861 _recalc_want;
684}; 862};
685 863
686# all those should be optimised 864# all those should be optimised
687sub cf::attachable::detach { 865sub cf::attachable::detach {
688 my ($obj, $name) = @_; 866 my ($obj, $name) = @_;
691 delete $obj->{_attachment}{$name}; 869 delete $obj->{_attachment}{$name};
692 reattach ($obj); 870 reattach ($obj);
693 } else { 871 } else {
694 Carp::croak "cannot, currently, detach class attachments"; 872 Carp::croak "cannot, currently, detach class attachments";
695 } 873 }
874 _recalc_want;
696}; 875};
697 876
698sub cf::attachable::attached { 877sub cf::attachable::attached {
699 my ($obj, $name) = @_; 878 my ($obj, $name) = @_;
700 879
715 "; 894 ";
716 die if $@; 895 die if $@;
717} 896}
718 897
719our $override; 898our $override;
720our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 899our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721 900
722sub override { 901sub override {
723 $override = 1; 902 $override = 1;
724 @invoke_results = (); 903 @INVOKE_RESULTS = (@_);
725} 904}
726 905
727sub do_invoke { 906sub do_invoke {
728 my $event = shift; 907 my $event = shift;
729 my $callbacks = shift; 908 my $callbacks = shift;
730 909
731 @invoke_results = (); 910 @INVOKE_RESULTS = ();
732 911
733 local $override; 912 local $override;
734 913
735 for (@$callbacks) { 914 for (@$callbacks) {
736 eval { &{$_->[1]} }; 915 eval { &{$_->[1]} };
753 932
754Generate an object-specific event with the given arguments. 933Generate an object-specific event with the given arguments.
755 934
756This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 935This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757removed in future versions), and there is no public API to access override 936removed in future versions), and there is no public API to access override
758results (if you must, access C<@cf::invoke_results> directly). 937results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759 938
760=back 939=back
761 940
762=cut 941=cut
763 942
764############################################################################# 943#############################################################################
765# object support 944# object support
945#
946
947sub _can_merge {
948 my ($ob1, $ob2) = @_;
949
950 local $Storable::canonical = 1;
951 my $fob1 = Storable::freeze $ob1;
952 my $fob2 = Storable::freeze $ob2;
953
954 $fob1 eq $fob2
955}
766 956
767sub reattach { 957sub reattach {
768 # basically do the same as instantiate, without calling instantiate 958 # basically do the same as instantiate, without calling instantiate
769 my ($obj) = @_; 959 my ($obj) = @_;
960
961 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770 962
771 my $registry = $obj->registry; 963 my $registry = $obj->registry;
772 964
773 @$registry = (); 965 @$registry = ();
774 966
821 $filename, length $$rdata, scalar @$objs; 1013 $filename, length $$rdata, scalar @$objs;
822 1014
823 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 1015 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824 chmod SAVE_MODE, $fh; 1016 chmod SAVE_MODE, $fh;
825 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 1017 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826 aio_fsync $fh; 1018 aio_fsync $fh if $cf::USE_FSYNC;
827 close $fh; 1019 close $fh;
828 1020
829 if (@$objs) { 1021 if (@$objs) {
830 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 1022 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831 chmod SAVE_MODE, $fh; 1023 chmod SAVE_MODE, $fh;
832 my $data = Storable::nfreeze { version => 1, objs => $objs }; 1024 my $data = Storable::nfreeze { version => 1, objs => $objs };
833 aio_write $fh, 0, (length $data), $data, 0; 1025 aio_write $fh, 0, (length $data), $data, 0;
834 aio_fsync $fh; 1026 aio_fsync $fh if $cf::USE_FSYNC;
835 close $fh; 1027 close $fh;
836 aio_rename "$filename.pst~", "$filename.pst"; 1028 aio_rename "$filename.pst~", "$filename.pst";
837 } 1029 }
838 } else { 1030 } else {
839 aio_unlink "$filename.pst"; 1031 aio_unlink "$filename.pst";
871 or return; 1063 or return;
872 $av = eval { (Storable::thaw $av)->{objs} }; 1064 $av = eval { (Storable::thaw $av)->{objs} };
873 } 1065 }
874 1066
875 warn sprintf "loading %s (%d)\n", 1067 warn sprintf "loading %s (%d)\n",
876 $filename, length $data, scalar @{$av || []};#d# 1068 $filename, length $data, scalar @{$av || []};
877 return ($data, $av); 1069 return ($data, $av);
878} 1070}
1071
1072=head2 COMMAND CALLBACKS
1073
1074=over 4
1075
1076=cut
879 1077
880############################################################################# 1078#############################################################################
881# command handling &c 1079# command handling &c
882 1080
883=item cf::register_command $name => \&callback($ob,$args); 1081=item cf::register_command $name => \&callback($ob,$args);
896 push @{ $COMMAND{$name} }, [$caller, $cb]; 1094 push @{ $COMMAND{$name} }, [$caller, $cb];
897} 1095}
898 1096
899=item cf::register_extcmd $name => \&callback($pl,$packet); 1097=item cf::register_extcmd $name => \&callback($pl,$packet);
900 1098
901Register a callbackf ro execution when the client sends an extcmd packet. 1099Register a callback for execution when the client sends an (synchronous)
1100extcmd packet. Ext commands will be processed in the order they are
1101received by the server, like other user commands. The first argument is
1102the logged-in player. Ext commands can only be processed after a player
1103has logged in successfully.
902 1104
903If the callback returns something, it is sent back as if reply was being 1105If the callback returns something, it is sent back as if reply was being
904called. 1106called.
905 1107
1108=item cf::register_exticmd $name => \&callback($ns,$packet);
1109
1110Register a callback for execution when the client sends an (asynchronous)
1111exticmd packet. Exti commands are processed by the server as soon as they
1112are received, i.e. out of order w.r.t. other commands. The first argument
1113is a client socket. Exti commands can be received anytime, even before
1114log-in.
1115
1116If the callback returns something, it is sent back as if reply was being
1117called.
1118
906=cut 1119=cut
907 1120
908sub register_extcmd { 1121sub register_extcmd {
909 my ($name, $cb) = @_; 1122 my ($name, $cb) = @_;
910 1123
911 my $caller = caller;
912 #warn "registering extcmd '$name' to '$caller'";
913
914 $EXTCMD{$name} = [$cb, $caller]; 1124 $EXTCMD{$name} = $cb;
1125}
1126
1127sub register_exticmd {
1128 my ($name, $cb) = @_;
1129
1130 $EXTICMD{$name} = $cb;
915} 1131}
916 1132
917cf::player->attach ( 1133cf::player->attach (
918 on_command => sub { 1134 on_command => sub {
919 my ($pl, $name, $params) = @_; 1135 my ($pl, $name, $params) = @_;
928 cf::override; 1144 cf::override;
929 }, 1145 },
930 on_extcmd => sub { 1146 on_extcmd => sub {
931 my ($pl, $buf) = @_; 1147 my ($pl, $buf) = @_;
932 1148
933 my $msg = eval { from_json $buf }; 1149 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934 1150
935 if (ref $msg) { 1151 if (ref $msg) {
1152 my ($type, $reply, @payload) =
1153 "ARRAY" eq ref $msg
1154 ? @$msg
1155 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1156
1157 my @reply;
1158
936 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1159 if (my $cb = $EXTCMD{$type}) {
937 if (my %reply = $cb->[0]->($pl, $msg)) { 1160 @reply = $cb->($pl, @payload);
938 $pl->ext_reply ($msg->{msgid}, %reply);
939 }
940 } 1161 }
1162
1163 $pl->ext_reply ($reply, @reply)
1164 if $reply;
1165
941 } else { 1166 } else {
942 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1167 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943 } 1168 }
944 1169
945 cf::override; 1170 cf::override;
946 }, 1171 },
947); 1172);
948 1173
949sub register {
950 my ($base, $pkg) = @_;
951
952 #TODO
953}
954
955sub load_extension {
956 my ($path) = @_;
957
958 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
959 my $base = $1;
960 my $pkg = $1;
961 $pkg =~ s/[^[:word:]]/_/g;
962 $pkg = "ext::$pkg";
963
964 warn "loading '$path' into '$pkg'\n";
965
966 open my $fh, "<:utf8", $path
967 or die "$path: $!";
968
969 my $source =
970 "package $pkg; use strict; use utf8;\n"
971 . "#line 1 \"$path\"\n{\n"
972 . (do { local $/; <$fh> })
973 . "\n};\n1";
974
975 eval $source
976 or die $@ ? "$path: $@\n"
977 : "extension disabled.\n";
978
979 push @exts, $pkg;
980 $ext_pkg{$base} = $pkg;
981
982# no strict 'refs';
983# @{"$pkg\::ISA"} = ext::;
984
985 register $base, $pkg;
986}
987
988sub unload_extension {
989 my ($pkg) = @_;
990
991 warn "removing extension $pkg\n";
992
993 # remove hooks
994 #TODO
995# for my $idx (0 .. $#PLUGIN_EVENT) {
996# delete $hook[$idx]{$pkg};
997# }
998
999 # remove commands
1000 for my $name (keys %COMMAND) {
1001 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003 if (@cb) {
1004 $COMMAND{$name} = \@cb;
1005 } else {
1006 delete $COMMAND{$name};
1007 }
1008 }
1009
1010 # remove extcmds
1011 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012 delete $EXTCMD{$name};
1013 }
1014
1015 if (my $cb = $pkg->can ("unload")) {
1016 eval {
1017 $cb->($pkg);
1018 1
1019 } or warn "$pkg unloaded, but with errors: $@";
1020 }
1021
1022 Symbol::delete_package $pkg;
1023}
1024
1025sub load_extensions { 1174sub load_extensions {
1175 cf::sync_job {
1176 my %todo;
1177
1026 for my $ext (<$LIBDIR/*.ext>) { 1178 for my $path (<$LIBDIR/*.ext>) {
1027 next unless -r $ext; 1179 next unless -r $path;
1028 eval { 1180
1029 load_extension $ext; 1181 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1182 my $base = $1;
1183 my $pkg = $1;
1184 $pkg =~ s/[^[:word:]]/_/g;
1185 $pkg = "ext::$pkg";
1186
1187 open my $fh, "<:utf8", $path
1188 or die "$path: $!";
1189
1190 my $source = do { local $/; <$fh> };
1191
1192 my %ext = (
1193 path => $path,
1194 base => $base,
1195 pkg => $pkg,
1196 );
1197
1198 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1199 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1200
1201 $ext{source} =
1202 "package $pkg; use strict; use utf8;\n"
1203 . "#line 1 \"$path\"\n{\n"
1204 . $source
1205 . "\n};\n1";
1206
1207 $todo{$base} = \%ext;
1208 }
1209
1210 my %done;
1211 while (%todo) {
1212 my $progress;
1213
1214 while (my ($k, $v) = each %todo) {
1215 for (split /,\s*/, $v->{meta}{depends}) {
1216 goto skip
1217 unless exists $done{$_};
1218 }
1219
1220 warn "... loading '$k' into '$v->{pkg}'\n";
1221
1222 unless (eval $v->{source}) {
1223 my $msg = $@ ? "$v->{path}: $@\n"
1224 : "$v->{base}: extension inactive.\n";
1225
1226 if (exists $v->{meta}{mandatory}) {
1227 warn $msg;
1228 warn "mandatory extension failed to load, exiting.\n";
1229 exit 1;
1230 }
1231
1232 warn $msg;
1233 }
1234
1235 $done{$k} = delete $todo{$k};
1236 push @EXTS, $v->{pkg};
1237 $progress = 1;
1030 1 1238 }
1031 } or warn "$ext not loaded: $@"; 1239
1240 skip:
1241 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1242 unless $progress;
1243 }
1032 } 1244 };
1033} 1245}
1034 1246
1035############################################################################# 1247#############################################################################
1036# load/save/clean perl data associated with a map
1037 1248
1038*cf::mapsupport::on_clean = sub { 1249=back
1039 my ($map) = @_;
1040
1041 my $path = $map->tmpname;
1042 defined $path or return;
1043
1044 unlink "$path.pst";
1045};
1046
1047cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049#############################################################################
1050# load/save perl data associated with player->ob objects
1051
1052sub all_objects(@) {
1053 @_, map all_objects ($_->inv), @_
1054}
1055
1056# TODO: compatibility cruft, remove when no longer needed
1057cf::player->attach (
1058 on_load => sub {
1059 my ($pl, $path) = @_;
1060
1061 for my $o (all_objects $pl->ob) {
1062 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063 $o->set_ob_key_value ("_perl_data");
1064
1065 %$o = %{ Storable::thaw pack "H*", $value };
1066 }
1067 }
1068 },
1069);
1070
1071#############################################################################
1072 1250
1073=head2 CORE EXTENSIONS 1251=head2 CORE EXTENSIONS
1074 1252
1075Functions and methods that extend core crossfire objects. 1253Functions and methods that extend core crossfire objects.
1076 1254
1077=cut 1255=cut
1078 1256
1079package cf::player; 1257package cf::player;
1080 1258
1259use Coro::AIO;
1260
1081=head3 cf::player 1261=head3 cf::player
1082 1262
1083=over 4 1263=over 4
1084 1264
1085=item cf::player::find $login 1265=item cf::player::find $login
1086 1266
1087Returns the given player object, loading it if necessary (might block). 1267Returns the given player object, loading it if necessary (might block).
1088 1268
1089=cut 1269=cut
1090 1270
1271sub playerdir($) {
1272 "$PLAYERDIR/"
1273 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1274}
1275
1091sub path($) { 1276sub path($) {
1092 sprintf "%s/%s/%s/%s.pl", 1277 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1093 cf::localdir, cf::playerdir, 1278
1094 (ref $_[0] ? $_[0]->ob->name : $_[0]) x 2 1279 (playerdir $login) . "/playerdata"
1095} 1280}
1096 1281
1097sub find_active($) { 1282sub find_active($) {
1098 $cf::PLAYER{$_[0]} 1283 $cf::PLAYER{$_[0]}
1099 and $cf::PLAYER{$_[0]}->active 1284 and $cf::PLAYER{$_[0]}->active
1102 1287
1103sub exists($) { 1288sub exists($) {
1104 my ($login) = @_; 1289 my ($login) = @_;
1105 1290
1106 $cf::PLAYER{$login} 1291 $cf::PLAYER{$login}
1107 or cf::sync_job { !aio_stat $login } 1292 or cf::sync_job { !aio_stat path $login }
1108} 1293}
1109 1294
1110sub find($) { 1295sub find($) {
1111 return $cf::PLAYER{$_[0]} || do { 1296 return $cf::PLAYER{$_[0]} || do {
1112 my $login = $_[0]; 1297 my $login = $_[0];
1113 1298
1114 my $guard = cf::lock_acquire "user_find:$login"; 1299 my $guard = cf::lock_acquire "user_find:$login";
1115 1300
1116 $cf::PLAYER{$login} ||= (load_pl path $login or return); 1301 $cf::PLAYER{$_[0]} || do {
1302 # rename old playerfiles to new ones
1303 #TODO: remove when no longer required
1304 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1305 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1306 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1307 aio_unlink +(playerdir $login) . "/$login.pl";
1308
1309 my $pl = load_pl path $login
1310 or return;
1311 $cf::PLAYER{$login} = $pl
1312 }
1117 }; 1313 }
1118} 1314}
1119 1315
1120sub save($) { 1316sub save($) {
1121 my ($pl) = @_; 1317 my ($pl) = @_;
1122 1318
1124 1320
1125 my $path = path $pl; 1321 my $path = path $pl;
1126 my $guard = cf::lock_acquire "user_save:$path"; 1322 my $guard = cf::lock_acquire "user_save:$path";
1127 1323
1128 return if $pl->{deny_save}; 1324 return if $pl->{deny_save};
1325
1326 aio_mkdir playerdir $pl, 0770;
1129 $pl->{last_save} = $cf::RUNTIME; 1327 $pl->{last_save} = $cf::RUNTIME;
1130 1328
1131 Coro::cede;
1132 $pl->save_pl ($path); 1329 $pl->save_pl ($path);
1133 Coro::cede; 1330 cf::cede_to_tick;
1134} 1331}
1135 1332
1136sub new($) { 1333sub new($) {
1137 my ($login) = @_; 1334 my ($login) = @_;
1138 1335
1144 $cf::PLAYER{$login} = $self; 1341 $cf::PLAYER{$login} = $self;
1145 1342
1146 $self 1343 $self
1147} 1344}
1148 1345
1346=item $player->send_msg ($channel, $msg, $color, [extra...])
1347
1348=cut
1349
1350sub send_msg {
1351 my $ns = shift->ns
1352 or return;
1353 $ns->send_msg (@_);
1354}
1355
1356=item $pl->quit_character
1357
1358Nukes the player without looking back. If logged in, the connection will
1359be destroyed. May block for a long time.
1360
1361=cut
1362
1363sub quit_character {
1364 my ($pl) = @_;
1365
1366 my $name = $pl->ob->name;
1367
1368 $pl->{deny_save} = 1;
1369 $pl->password ("*"); # this should lock out the player until we nuked the dir
1370
1371 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1372 $pl->deactivate;
1373 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1374 $pl->ns->destroy if $pl->ns;
1375
1376 my $path = playerdir $pl;
1377 my $temp = "$path~$cf::RUNTIME~deleting~";
1378 aio_rename $path, $temp;
1379 delete $cf::PLAYER{$pl->ob->name};
1380 $pl->destroy;
1381
1382 my $prefix = qr<^~\Q$name\E/>;
1383
1384 # nuke player maps
1385 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1386
1387 IO::AIO::aio_rmtree $temp;
1388}
1389
1390=item $pl->kick
1391
1392Kicks a player out of the game. This destroys the connection.
1393
1394=cut
1395
1396sub kick {
1397 my ($pl, $kicker) = @_;
1398
1399 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1400 $pl->killer ("kicked");
1401 $pl->ns->destroy;
1402}
1403
1404=item cf::player::list_logins
1405
1406Returns am arrayref of all valid playernames in the system, can take a
1407while and may block, so not sync_job-capable, ever.
1408
1409=cut
1410
1411sub list_logins {
1412 my $dirs = aio_readdir $PLAYERDIR
1413 or return [];
1414
1415 my @logins;
1416
1417 for my $login (@$dirs) {
1418 my $path = path $login;
1419
1420 # a .pst is a dead give-away for a valid player
1421 unless (-e "$path.pst") {
1422 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1423 aio_read $fh, 0, 512, my $buf, 0 or next;
1424 $buf !~ /^password -------------$/m or next; # official not-valid tag
1425 }
1426
1427 utf8::decode $login;
1428 push @logins, $login;
1429 }
1430
1431 \@logins
1432}
1433
1434=item $player->maps
1435
1436Returns an arrayref of map paths that are private for this
1437player. May block.
1438
1439=cut
1440
1441sub maps($) {
1442 my ($pl) = @_;
1443
1444 $pl = ref $pl ? $pl->ob->name : $pl;
1445
1446 my $files = aio_readdir playerdir $pl
1447 or return;
1448
1449 my @paths;
1450
1451 for (@$files) {
1452 utf8::decode $_;
1453 next if /\.(?:pl|pst)$/;
1454 next unless /^$PATH_SEP/o;
1455
1456 push @paths, cf::map::normalise "~$pl/$_";
1457 }
1458
1459 \@paths
1460}
1461
1462=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
1463
1464Expand crossfire pod fragments into protocol xml.
1465
1466=cut
1467
1468sub expand_cfpod {
1469 ((my $self), (local $_)) = @_;
1470
1471 # escape & and <
1472 s/&/&amp;/g;
1473 s/(?<![BIUGHT])</&lt;/g;
1474
1475 # this is buggy, it needs to properly take care of nested <'s
1476
1477 1 while
1478 # replace B<>, I<>, U<> etc.
1479 s/B<([^\>]*)>/<b>$1<\/b>/
1480 || s/I<([^\>]*)>/<i>$1<\/i>/
1481 || s/U<([^\>]*)>/<u>$1<\/u>/
1482 || s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
1483 # replace G<male|female> tags
1484 || s{G<([^>|]*)\|([^>]*)>}{
1485 $self->gender ? $2 : $1
1486 }ge
1487 # replace H<hint text>
1488 || s{H<([^\>]*)>}
1489 {
1490 ("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
1491 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1492 "")
1493 [$self->{hintmode}]
1494 }ge;
1495
1496 # create single paragraphs (very hackish)
1497 s/(?<=\S)\n(?=\w)/ /g;
1498
1499 # compress some whitespace
1500 s/\s+\n/\n/g; # ws line-ends
1501 s/\n\n+/\n/g; # double lines
1502 s/^\n+//; # beginning lines
1503 s/\n+$//; # ending lines
1504
1505 $_
1506}
1507
1508sub hintmode {
1509 $_[0]{hintmode} = $_[1] if @_ > 1;
1510 $_[0]{hintmode}
1511}
1512
1149=item $player->ext_reply ($msgid, $msgtype, %msg) 1513=item $player->ext_reply ($msgid, @msg)
1150 1514
1151Sends an ext reply to the player. 1515Sends an ext reply to the player.
1152 1516
1153=cut 1517=cut
1154 1518
1155sub ext_reply($$$%) { 1519sub ext_reply($$@) {
1156 my ($self, $id, %msg) = @_; 1520 my ($self, $id, @msg) = @_;
1157 1521
1158 $msg{msgid} = $id; 1522 $self->ns->ext_reply ($id, @msg)
1159
1160 $self->send ("ext " . cf::to_json \%msg);
1161} 1523}
1162 1524
1163package cf; 1525=item $player->ext_msg ($type, @msg)
1526
1527Sends an ext event to the client.
1528
1529=cut
1530
1531sub ext_msg($$@) {
1532 my ($self, $type, @msg) = @_;
1533
1534 $self->ns->ext_msg ($type, @msg);
1535}
1536
1537=head3 cf::region
1538
1539=over 4
1540
1541=cut
1542
1543package cf::region;
1544
1545=item cf::region::find_by_path $path
1546
1547Tries to decuce the likely region for a map knowing only its path.
1548
1549=cut
1550
1551sub find_by_path($) {
1552 my ($path) = @_;
1553
1554 my ($match, $specificity);
1555
1556 for my $region (list) {
1557 if ($region->{match} && $path =~ $region->{match}) {
1558 ($match, $specificity) = ($region, $region->specificity)
1559 if $region->specificity > $specificity;
1560 }
1561 }
1562
1563 $match
1564}
1164 1565
1165=back 1566=back
1166
1167 1567
1168=head3 cf::map 1568=head3 cf::map
1169 1569
1170=over 4 1570=over 4
1171 1571
1174package cf::map; 1574package cf::map;
1175 1575
1176use Fcntl; 1576use Fcntl;
1177use Coro::AIO; 1577use Coro::AIO;
1178 1578
1579use overload
1580 '""' => \&as_string,
1581 fallback => 1;
1582
1179our $MAX_RESET = 3600; 1583our $MAX_RESET = 3600;
1180our $DEFAULT_RESET = 3000; 1584our $DEFAULT_RESET = 3000;
1181 1585
1182sub generate_random_map { 1586sub generate_random_map {
1183 my ($path, $rmp) = @_; 1587 my ($self, $rmp) = @_;
1184
1185 # mit "rum" bekleckern, nicht 1588 # mit "rum" bekleckern, nicht
1186 cf::map::_create_random_map 1589 $self->_create_random_map (
1187 $path,
1188 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1590 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1189 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1591 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1190 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1592 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1191 $rmp->{exit_on_final_map}, 1593 $rmp->{exit_on_final_map},
1192 $rmp->{xsize}, $rmp->{ysize}, 1594 $rmp->{xsize}, $rmp->{ysize},
1193 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1595 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1194 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1596 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1195 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1597 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1196 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1598 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1197 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1599 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1198 (cf::region::find $rmp->{region}) 1600 (cf::region::find $rmp->{region}), $rmp->{custom}
1601 )
1602}
1603
1604=item cf::map->register ($regex, $prio)
1605
1606Register a handler for the map path matching the given regex at the
1607givne priority (higher is better, built-in handlers have priority 0, the
1608default).
1609
1610=cut
1611
1612sub register {
1613 my (undef, $regex, $prio) = @_;
1614 my $pkg = caller;
1615
1616 no strict;
1617 push @{"$pkg\::ISA"}, __PACKAGE__;
1618
1619 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1620}
1621
1622# also paths starting with '/'
1623$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1624
1625sub thawer_merge {
1626 my ($self, $merge) = @_;
1627
1628 # we have to keep some variables in memory intact
1629 local $self->{path};
1630 local $self->{load_path};
1631
1632 $self->SUPER::thawer_merge ($merge);
1633}
1634
1635sub normalise {
1636 my ($path, $base) = @_;
1637
1638 $path = "$path"; # make sure its a string
1639
1640 $path =~ s/\.map$//;
1641
1642 # map plan:
1643 #
1644 # /! non-realised random map exit (special hack!)
1645 # {... are special paths that are not being touched
1646 # ?xxx/... are special absolute paths
1647 # ?random/... random maps
1648 # /... normal maps
1649 # ~user/... per-player map of a specific user
1650
1651 $path =~ s/$PATH_SEP/\//go;
1652
1653 # treat it as relative path if it starts with
1654 # something that looks reasonable
1655 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1656 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1657
1658 $base =~ s{[^/]+/?$}{};
1659 $path = "$base/$path";
1660 }
1661
1662 for ($path) {
1663 redo if s{//}{/};
1664 redo if s{/\.?/}{/};
1665 redo if s{/[^/]+/\.\./}{/};
1666 }
1667
1668 $path
1669}
1670
1671sub new_from_path {
1672 my (undef, $path, $base) = @_;
1673
1674 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1675
1676 $path = normalise $path, $base;
1677
1678 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1679 if ($path =~ $EXT_MAP{$pkg}[1]) {
1680 my $self = bless cf::map::new, $pkg;
1681 $self->{path} = $path; $self->path ($path);
1682 $self->init; # pass $1 etc.
1683 return $self;
1684 }
1685 }
1686
1687 Carp::cluck "unable to resolve path '$path' (base '$base').";
1688 ()
1689}
1690
1691sub init {
1692 my ($self) = @_;
1693
1694 $self
1695}
1696
1697sub as_string {
1698 my ($self) = @_;
1699
1700 "$self->{path}"
1701}
1702
1703# the displayed name, this is a one way mapping
1704sub visible_name {
1705 &as_string
1706}
1707
1708# the original (read-only) location
1709sub load_path {
1710 my ($self) = @_;
1711
1712 "$MAPDIR/$self->{path}.map"
1713}
1714
1715# the temporary/swap location
1716sub save_path {
1717 my ($self) = @_;
1718
1719 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1720 "$TMPDIR/$path.map"
1721}
1722
1723# the unique path, undef == no special unique path
1724sub uniq_path {
1725 my ($self) = @_;
1726
1727 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1728 "$UNIQUEDIR/$path"
1199} 1729}
1200 1730
1201# and all this just because we cannot iterate over 1731# and all this just because we cannot iterate over
1202# all maps in C++... 1732# all maps in C++...
1203sub change_all_map_light { 1733sub change_all_map_light {
1205 1735
1206 $_->change_map_light ($change) 1736 $_->change_map_light ($change)
1207 for grep $_->outdoor, values %cf::MAP; 1737 for grep $_->outdoor, values %cf::MAP;
1208} 1738}
1209 1739
1740sub decay_objects {
1741 my ($self) = @_;
1742
1743 return if $self->{deny_reset};
1744
1745 $self->do_decay_objects;
1746}
1747
1748sub unlink_save {
1749 my ($self) = @_;
1750
1751 utf8::encode (my $save = $self->save_path);
1752 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1753 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1754}
1755
1210sub try_load_header($) { 1756sub load_header_from($) {
1211 my ($path) = @_; 1757 my ($self, $path) = @_;
1212 1758
1213 utf8::encode $path; 1759 utf8::encode $path;
1214 aio_open $path, O_RDONLY, 0 1760 #aio_open $path, O_RDONLY, 0
1761 # or return;
1762
1763 $self->_load_header ($path)
1215 or return; 1764 or return;
1216 1765
1217 my $map = cf::map::new 1766 $self->{load_path} = $path;
1767
1768 1
1769}
1770
1771sub load_header_orig {
1772 my ($self) = @_;
1773
1774 $self->load_header_from ($self->load_path)
1775}
1776
1777sub load_header_temp {
1778 my ($self) = @_;
1779
1780 $self->load_header_from ($self->save_path)
1781}
1782
1783sub prepare_temp {
1784 my ($self) = @_;
1785
1786 $self->last_access ((delete $self->{last_access})
1787 || $cf::RUNTIME); #d#
1788 # safety
1789 $self->{instantiate_time} = $cf::RUNTIME
1790 if $self->{instantiate_time} > $cf::RUNTIME;
1791}
1792
1793sub prepare_orig {
1794 my ($self) = @_;
1795
1796 $self->{load_original} = 1;
1797 $self->{instantiate_time} = $cf::RUNTIME;
1798 $self->last_access ($cf::RUNTIME);
1799 $self->instantiate;
1800}
1801
1802sub load_header {
1803 my ($self) = @_;
1804
1805 if ($self->load_header_temp) {
1806 $self->prepare_temp;
1807 } else {
1808 $self->load_header_orig
1218 or return; 1809 or return;
1810 $self->prepare_orig;
1811 }
1219 1812
1220 # for better error messages only, will be overwritten 1813 $self->{deny_reset} = 1
1221 $map->path ($path); 1814 if $self->no_reset;
1222 1815
1223 $map->load_header ($path) 1816 $self->default_region (cf::region::find_by_path $self->{path})
1224 or return; 1817 unless $self->default_region;
1225 1818
1226 $map->{load_path} = $path; 1819 1
1227
1228 $map
1229} 1820}
1230 1821
1231sub find; 1822sub find;
1232sub find { 1823sub find {
1233 my ($path, $origin) = @_; 1824 my ($path, $origin) = @_;
1234 1825
1235 #warn "find<$path,$origin>\n";#d#
1236
1237 $path = new cf::path $path, $origin && $origin->path; 1826 $path = normalise $path, $origin && $origin->path;
1238 my $key = $path->as_string;
1239 1827
1240 cf::lock_wait "map_find:$key"; 1828 cf::lock_wait "map_find:$path";
1241 1829
1242 $cf::MAP{$key} || do { 1830 $cf::MAP{$path} || do {
1243 my $guard = cf::lock_acquire "map_find:$key"; 1831 my $guard = cf::lock_acquire "map_find:$path";
1244 1832 my $map = new_from_path cf::map $path
1245 # do it the slow way
1246 my $map = try_load_header $path->save_path;
1247
1248 Coro::cede;
1249
1250 if ($map) {
1251 $map->last_access ((delete $map->{last_access})
1252 || $cf::RUNTIME); #d#
1253 # safety
1254 $map->{instantiate_time} = $cf::RUNTIME
1255 if $map->{instantiate_time} > $cf::RUNTIME;
1256 } else {
1257 if (my $rmp = $path->random_map_params) {
1258 $map = generate_random_map $key, $rmp;
1259 } else {
1260 $map = try_load_header $path->load_path;
1261 }
1262
1263 $map or return; 1833 or return;
1264 1834
1265 $map->{load_original} = 1;
1266 $map->{instantiate_time} = $cf::RUNTIME;
1267 $map->last_access ($cf::RUNTIME);
1268 $map->instantiate;
1269
1270 # per-player maps become, after loading, normal maps
1271 $map->per_player (0) if $path->{user_rel};
1272 }
1273
1274 $map->path ($key);
1275 $map->{path} = $path;
1276 $map->{last_save} = $cf::RUNTIME; 1835 $map->{last_save} = $cf::RUNTIME;
1277 1836
1278 Coro::cede; 1837 $map->load_header
1838 or return;
1279 1839
1280 if ($map->should_reset) { 1840 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1841 # doing this can freeze the server in a sync job, obviously
1842 #$cf::WAIT_FOR_TICK->wait;
1281 $map->reset; 1843 $map->reset;
1282 undef $guard; 1844 undef $guard;
1283 $map = find $path 1845 return find $path;
1284 or return;
1285 } 1846 }
1286 1847
1287 $cf::MAP{$key} = $map 1848 $cf::MAP{$path} = $map
1288 } 1849 }
1289} 1850}
1851
1852sub pre_load { }
1853sub post_load { }
1290 1854
1291sub load { 1855sub load {
1292 my ($self) = @_; 1856 my ($self) = @_;
1293 1857
1858 local $self->{deny_reset} = 1; # loading can take a long time
1859
1294 my $path = $self->{path}; 1860 my $path = $self->{path};
1861
1862 {
1863 my $guard1 = cf::lock_acquire "map_data:$path";
1295 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1864 my $guard2 = cf::lock_acquire "map_load:$path";
1296 1865
1297 return if $self->in_memory != cf::MAP_SWAPPED; 1866 return if $self->in_memory != cf::MAP_SWAPPED;
1298 1867
1299 $self->in_memory (cf::MAP_LOADING); 1868 $self->in_memory (cf::MAP_LOADING);
1300 1869
1301 $self->alloc; 1870 $self->alloc;
1871
1872 $self->pre_load;
1873 cf::cede_to_tick;
1874
1302 $self->load_objects ($self->{load_path}, 1) 1875 $self->_load_objects ($self->{load_path}, 1)
1303 or return; 1876 or return;
1304 1877
1305 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1878 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1306 if delete $self->{load_original}; 1879 if delete $self->{load_original};
1307 1880
1308 if (my $uniq = $path->uniq_path) { 1881 if (my $uniq = $self->uniq_path) {
1309 utf8::encode $uniq; 1882 utf8::encode $uniq;
1310 if (aio_open $uniq, O_RDONLY, 0) { 1883 if (aio_open $uniq, O_RDONLY, 0) {
1311 $self->clear_unique_items; 1884 $self->clear_unique_items;
1312 $self->load_objects ($uniq, 0); 1885 $self->_load_objects ($uniq, 0);
1313 } 1886 }
1314 } 1887 }
1315 1888
1316 Coro::cede; 1889 cf::cede_to_tick;
1317
1318 # now do the right thing for maps 1890 # now do the right thing for maps
1319 $self->link_multipart_objects; 1891 $self->link_multipart_objects;
1320
1321 if ($self->{path}->is_style_map) {
1322 $self->{deny_save} = 1;
1323 $self->{deny_reset} = 1;
1324 } else {
1325 $self->fix_auto_apply;
1326 $self->decay_objects;
1327 $self->update_buttons;
1328 $self->set_darkness_map;
1329 $self->difficulty ($self->estimate_difficulty) 1892 $self->difficulty ($self->estimate_difficulty)
1330 unless $self->difficulty; 1893 unless $self->difficulty;
1894 cf::cede_to_tick;
1895
1896 unless ($self->{deny_activate}) {
1897 $self->decay_objects;
1898 $self->fix_auto_apply;
1899 $self->update_buttons;
1900 cf::cede_to_tick;
1901 $self->set_darkness_map;
1902 cf::cede_to_tick;
1331 $self->activate; 1903 $self->activate;
1332 } 1904 }
1333 1905
1334 Coro::cede; 1906 $self->{last_save} = $cf::RUNTIME;
1907 $self->last_access ($cf::RUNTIME);
1335 1908
1336 $self->in_memory (cf::MAP_IN_MEMORY); 1909 $self->in_memory (cf::MAP_IN_MEMORY);
1910 }
1911
1912 $self->post_load;
1913}
1914
1915sub customise_for {
1916 my ($self, $ob) = @_;
1917
1918 return find "~" . $ob->name . "/" . $self->{path}
1919 if $self->per_player;
1920
1921# return find "?party/" . $ob->name . "/" . $self->{path}
1922# if $self->per_party;
1923
1924 $self
1925}
1926
1927# find and load all maps in the 3x3 area around a map
1928sub load_neighbours {
1929 my ($map) = @_;
1930
1931 my @neigh; # diagonal neighbours
1932
1933 for (0 .. 3) {
1934 my $neigh = $map->tile_path ($_)
1935 or next;
1936 $neigh = find $neigh, $map
1937 or next;
1938 $neigh->load;
1939
1940 push @neigh,
1941 [$neigh->tile_path (($_ + 3) % 4), $neigh],
1942 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1943 }
1944
1945 for (grep defined $_->[0], @neigh) {
1946 my ($path, $origin) = @$_;
1947 my $neigh = find $path, $origin
1948 or next;
1949 $neigh->load;
1950 }
1337} 1951}
1338 1952
1339sub find_sync { 1953sub find_sync {
1340 my ($path, $origin) = @_; 1954 my ($path, $origin) = @_;
1341 1955
1342 cf::sync_job { cf::map::find $path, $origin } 1956 cf::sync_job { find $path, $origin }
1343} 1957}
1344 1958
1345sub do_load_sync { 1959sub do_load_sync {
1346 my ($map) = @_; 1960 my ($map) = @_;
1347 1961
1962 cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1963 if $Coro::current == $Coro::main;
1964
1348 cf::sync_job { $map->load }; 1965 cf::sync_job { $map->load };
1966}
1967
1968our %MAP_PREFETCH;
1969our $MAP_PREFETCHER = undef;
1970
1971sub find_async {
1972 my ($path, $origin, $load) = @_;
1973
1974 $path = normalise $path, $origin && $origin->{path};
1975
1976 if (my $map = $cf::MAP{$path}) {
1977 return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1978 }
1979
1980 $MAP_PREFETCH{$path} |= $load;
1981
1982 $MAP_PREFETCHER ||= cf::async {
1983 while (%MAP_PREFETCH) {
1984 while (my ($k, $v) = each %MAP_PREFETCH) {
1985 if (my $map = find $k) {
1986 $map->load if $v;
1987 }
1988
1989 delete $MAP_PREFETCH{$k};
1990 }
1991 }
1992 undef $MAP_PREFETCHER;
1993 };
1994 $MAP_PREFETCHER->prio (6);
1995
1996 ()
1349} 1997}
1350 1998
1351sub save { 1999sub save {
1352 my ($self) = @_; 2000 my ($self) = @_;
1353 2001
1354 my $lock = cf::lock_acquire "map_data:" . $self->path; 2002 my $lock = cf::lock_acquire "map_data:$self->{path}";
1355 2003
1356 $self->{last_save} = $cf::RUNTIME; 2004 $self->{last_save} = $cf::RUNTIME;
1357 2005
1358 return unless $self->dirty; 2006 return unless $self->dirty;
1359 2007
1360 my $save = $self->{path}->save_path; utf8::encode $save; 2008 my $save = $self->save_path; utf8::encode $save;
1361 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 2009 my $uniq = $self->uniq_path; utf8::encode $uniq;
1362 2010
1363 $self->{load_path} = $save; 2011 $self->{load_path} = $save;
1364 2012
1365 return if $self->{deny_save}; 2013 return if $self->{deny_save};
1366 2014
1369 cf::async { 2017 cf::async {
1370 $_->contr->save for $self->players; 2018 $_->contr->save for $self->players;
1371 }; 2019 };
1372 2020
1373 if ($uniq) { 2021 if ($uniq) {
1374 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 2022 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1375 $self->save_objects ($uniq, cf::IO_UNIQUES); 2023 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1376 } else { 2024 } else {
1377 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 2025 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1378 } 2026 }
1379} 2027}
1380 2028
1381sub swap_out { 2029sub swap_out {
1382 my ($self) = @_; 2030 my ($self) = @_;
1383 2031
1384 # save first because save cedes 2032 # save first because save cedes
1385 $self->save; 2033 $self->save;
1386 2034
1387 my $lock = cf::lock_acquire "map_data:" . $self->path; 2035 my $lock = cf::lock_acquire "map_data:$self->{path}";
1388 2036
1389 return if $self->players; 2037 return if $self->players;
1390 return if $self->in_memory != cf::MAP_IN_MEMORY; 2038 return if $self->in_memory != cf::MAP_IN_MEMORY;
1391 return if $self->{deny_save}; 2039 return if $self->{deny_save};
1392 2040
1396 2044
1397sub reset_at { 2045sub reset_at {
1398 my ($self) = @_; 2046 my ($self) = @_;
1399 2047
1400 # TODO: safety, remove and allow resettable per-player maps 2048 # TODO: safety, remove and allow resettable per-player maps
1401 return 1e99 if $self->{path}{user_rel};
1402 return 1e99 if $self->{deny_reset}; 2049 return 1e99 if $self->{deny_reset};
1403 2050
1404 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 2051 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1405 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 2052 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1406 2053
1411 my ($self) = @_; 2058 my ($self) = @_;
1412 2059
1413 $self->reset_at <= $cf::RUNTIME 2060 $self->reset_at <= $cf::RUNTIME
1414} 2061}
1415 2062
1416sub unlink_save {
1417 my ($self) = @_;
1418
1419 utf8::encode (my $save = $self->{path}->save_path);
1420 aioreq_pri 3; IO::AIO::aio_unlink $save;
1421 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1422}
1423
1424sub rename {
1425 my ($self, $new_path) = @_;
1426
1427 $self->unlink_save;
1428
1429 delete $cf::MAP{$self->path};
1430 $self->{path} = new cf::path $new_path;
1431 $self->path ($self->{path}->as_string);
1432 $cf::MAP{$self->path} = $self;
1433
1434 $self->save;
1435}
1436
1437sub reset { 2063sub reset {
1438 my ($self) = @_; 2064 my ($self) = @_;
1439 2065
1440 my $lock = cf::lock_acquire "map_data:" . $self->path; 2066 my $lock = cf::lock_acquire "map_data:$self->{path}";
1441 2067
1442 return if $self->players; 2068 return if $self->players;
1443 return if $self->{path}{user_rel};#d#
1444 2069
1445 warn "resetting map ", $self->path;#d# 2070 warn "resetting map ", $self->path;
2071
2072 $self->in_memory (cf::MAP_SWAPPED);
2073
2074 # need to save uniques path
2075 unless ($self->{deny_save}) {
2076 my $uniq = $self->uniq_path; utf8::encode $uniq;
2077
2078 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2079 if $uniq;
2080 }
1446 2081
1447 delete $cf::MAP{$self->path}; 2082 delete $cf::MAP{$self->path};
2083
2084 $self->clear;
1448 2085
1449 $_->clear_links_to ($self) for values %cf::MAP; 2086 $_->clear_links_to ($self) for values %cf::MAP;
1450 2087
1451 $self->unlink_save; 2088 $self->unlink_save;
1452 $self->destroy; 2089 $self->destroy;
1455my $nuke_counter = "aaaa"; 2092my $nuke_counter = "aaaa";
1456 2093
1457sub nuke { 2094sub nuke {
1458 my ($self) = @_; 2095 my ($self) = @_;
1459 2096
2097 {
2098 my $lock = cf::lock_acquire "map_data:$self->{path}";
2099
2100 delete $cf::MAP{$self->path};
2101
2102 $self->unlink_save;
2103
2104 bless $self, "cf::map";
2105 delete $self->{deny_reset};
1460 $self->{deny_save} = 1; 2106 $self->{deny_save} = 1;
1461 $self->reset_timeout (1); 2107 $self->reset_timeout (1);
1462 $self->rename ("{nuke}/" . ($nuke_counter++)); 2108 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2109
2110 $cf::MAP{$self->path} = $self;
2111 }
2112
1463 $self->reset; # polite request, might not happen 2113 $self->reset; # polite request, might not happen
1464} 2114}
1465 2115
1466sub customise_for { 2116=item $maps = cf::map::tmp_maps
1467 my ($map, $ob) = @_;
1468 2117
1469 if ($map->per_player) { 2118Returns an arrayref with all map paths of currently instantiated and saved
1470 return cf::map::find "~" . $ob->name . "/" . $map->{path}{path}; 2119maps. May block.
2120
2121=cut
2122
2123sub tmp_maps() {
1471 } 2124 [
1472 2125 map {
1473 $map 2126 utf8::decode $_;
2127 /\.map$/
2128 ? normalise $_
2129 : ()
2130 } @{ aio_readdir $TMPDIR or [] }
2131 ]
1474} 2132}
1475 2133
1476sub emergency_save { 2134=item $maps = cf::map::random_maps
1477 my $freeze_guard = cf::freeze_mainloop;
1478 2135
1479 warn "enter emergency map save\n"; 2136Returns an arrayref with all map paths of currently instantiated and saved
2137random maps. May block.
1480 2138
1481 cf::sync_job { 2139=cut
1482 warn "begin emergency map save\n";
1483 $_->save for values %cf::MAP;
1484 };
1485 2140
1486 warn "end emergency map save\n"; 2141sub random_maps() {
2142 [
2143 map {
2144 utf8::decode $_;
2145 /\.map$/
2146 ? normalise "?random/$_"
2147 : ()
2148 } @{ aio_readdir $RANDOMDIR or [] }
2149 ]
2150}
2151
2152=item cf::map::unique_maps
2153
2154Returns an arrayref of paths of all shared maps that have
2155instantiated unique items. May block.
2156
2157=cut
2158
2159sub unique_maps() {
2160 [
2161 map {
2162 utf8::decode $_;
2163 /\.map$/
2164 ? normalise $_
2165 : ()
2166 } @{ aio_readdir $UNIQUEDIR or [] }
2167 ]
1487} 2168}
1488 2169
1489package cf; 2170package cf;
1490 2171
1491=back 2172=back
1492 2173
2174=head3 cf::object
2175
2176=cut
2177
2178package cf::object;
2179
2180=over 4
2181
2182=item $ob->inv_recursive
2183
2184Returns the inventory of the object _and_ their inventories, recursively.
2185
2186=cut
2187
2188sub inv_recursive_;
2189sub inv_recursive_ {
2190 map { $_, inv_recursive_ $_->inv } @_
2191}
2192
2193sub inv_recursive {
2194 inv_recursive_ inv $_[0]
2195}
2196
2197package cf;
2198
2199=back
1493 2200
1494=head3 cf::object::player 2201=head3 cf::object::player
1495 2202
1496=over 4 2203=over 4
1497 2204
1511 2218
1512 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2219 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1513 2220
1514 if ($self->{record_replies}) { 2221 if ($self->{record_replies}) {
1515 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2222 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2223
1516 } else { 2224 } else {
2225 my $pl = $self->contr;
2226
2227 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2228 my $dialog = $pl->{npc_dialog};
2229 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2230
2231 } else {
1517 $msg = $npc->name . " says: $msg" if $npc; 2232 $msg = $npc->name . " says: $msg" if $npc;
1518 $self->message ($msg, $flags); 2233 $self->message ($msg, $flags);
2234 }
1519 } 2235 }
2236}
2237
2238=item $object->send_msg ($channel, $msg, $color, [extra...])
2239
2240=cut
2241
2242sub cf::object::send_msg {
2243 my $pl = shift->contr
2244 or return;
2245 $pl->send_msg (@_);
1520} 2246}
1521 2247
1522=item $player_object->may ("access") 2248=item $player_object->may ("access")
1523 2249
1524Returns wether the given player is authorized to access resource "access" 2250Returns wether the given player is authorized to access resource "access"
1537 2263
1538=item $player_object->enter_link 2264=item $player_object->enter_link
1539 2265
1540Freezes the player and moves him/her to a special map (C<{link}>). 2266Freezes the player and moves him/her to a special map (C<{link}>).
1541 2267
1542The player should be reaosnably safe there for short amounts of time. You 2268The player should be reasonably safe there for short amounts of time. You
1543I<MUST> call C<leave_link> as soon as possible, though. 2269I<MUST> call C<leave_link> as soon as possible, though.
1544 2270
2271Will never block.
2272
1545=item $player_object->leave_link ($map, $x, $y) 2273=item $player_object->leave_link ($map, $x, $y)
1546 2274
1547Moves the player out of the specila link map onto the given map. If the 2275Moves the player out of the special C<{link}> map onto the specified
1548map is not valid (or omitted), the player will be moved back to the 2276map. If the map is not valid (or omitted), the player will be moved back
1549location he/she was before the call to C<enter_link>, or, if that fails, 2277to the location he/she was before the call to C<enter_link>, or, if that
1550to the emergency map position. 2278fails, to the emergency map position.
1551 2279
1552Might block. 2280Might block.
1553 2281
1554=cut 2282=cut
2283
2284sub link_map {
2285 unless ($LINK_MAP) {
2286 $LINK_MAP = cf::map::find "{link}"
2287 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2288 $LINK_MAP->load;
2289 }
2290
2291 $LINK_MAP
2292}
1555 2293
1556sub cf::object::player::enter_link { 2294sub cf::object::player::enter_link {
1557 my ($self) = @_; 2295 my ($self) = @_;
1558 2296
1559 $self->deactivate_recursive; 2297 $self->deactivate_recursive;
1560 2298
1561 return if $self->map == $LINK_MAP; 2299 return if UNIVERSAL::isa $self->map, "ext::map_link";
1562 2300
1563 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 2301 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1564 if $self->map; 2302 if $self->map && $self->map->{path} ne "{link}";
1565 2303
1566 $self->enter_map ($LINK_MAP, 20, 20); 2304 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1567} 2305}
1568 2306
1569sub cf::object::player::leave_link { 2307sub cf::object::player::leave_link {
1570 my ($self, $map, $x, $y) = @_; 2308 my ($self, $map, $x, $y) = @_;
2309
2310 return unless $self->contr->active;
1571 2311
1572 my $link_pos = delete $self->{_link_pos}; 2312 my $link_pos = delete $self->{_link_pos};
1573 2313
1574 unless ($map) { 2314 unless ($map) {
1575 # restore original map position 2315 # restore original map position
1589 # use -1 or undef as default coordinates, not 0, 0 2329 # use -1 or undef as default coordinates, not 0, 0
1590 ($x, $y) = ($map->enter_x, $map->enter_y) 2330 ($x, $y) = ($map->enter_x, $map->enter_y)
1591 if $x <=0 && $y <= 0; 2331 if $x <=0 && $y <= 0;
1592 2332
1593 $map->load; 2333 $map->load;
2334 $map->load_neighbours;
1594 2335
1595 return unless $self->contr->active; 2336 return unless $self->contr->active;
1596 $self->activate_recursive; 2337 $self->activate_recursive;
2338
2339 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1597 $self->enter_map ($map, $x, $y); 2340 $self->enter_map ($map, $x, $y);
1598} 2341}
1599 2342
1600cf::player->attach ( 2343=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1601 on_logout => sub {
1602 my ($pl) = @_;
1603 2344
1604 # abort map switching before logout 2345Moves the player to the given map-path and coordinates by first freezing
1605 if ($pl->ob->{_link_pos}) { 2346her, loading and preparing them map, calling the provided $check callback
1606 cf::sync_job { 2347that has to return the map if sucecssful, and then unfreezes the player on
1607 $pl->ob->leave_link 2348the new (success) or old (failed) map position. In either case, $done will
1608 }; 2349be called at the end of this process.
1609 }
1610 },
1611 on_login => sub {
1612 my ($pl) = @_;
1613 2350
1614 # try to abort aborted map switching on player login :)
1615 # should happen only on crashes
1616 if ($pl->ob->{_link_pos}) {
1617 $pl->ob->enter_link;
1618 (async {
1619 # we need this sleep as the login has a concurrent enter_exit running
1620 # and this sleep increases chances of the player not ending up in scorn
1621 $pl->ob->reply (undef,
1622 "There was an internal problem at your last logout, "
1623 . "the server will try to bring you to your intended destination in a second.",
1624 cf::NDI_RED);
1625 Coro::Timer::sleep 1;
1626 $pl->ob->leave_link;
1627 })->prio (2);
1628 }
1629 },
1630);
1631
1632=item $player_object->goto ($path, $x, $y)
1633
1634=cut 2351=cut
2352
2353our $GOTOGEN;
1635 2354
1636sub cf::object::player::goto { 2355sub cf::object::player::goto {
1637 my ($self, $path, $x, $y) = @_; 2356 my ($self, $path, $x, $y, $check, $done) = @_;
2357
2358 # do generation counting so two concurrent goto's will be executed in-order
2359 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1638 2360
1639 $self->enter_link; 2361 $self->enter_link;
1640 2362
1641 (async { 2363 (async {
1642 $path = new cf::path $path; 2364 my $map = eval {
1643
1644 my $map = cf::map::find $path->as_string; 2365 my $map = cf::map::find $path;
2366
2367 if ($map) {
1645 $map = $map->customise_for ($self) if $map; 2368 $map = $map->customise_for ($self);
1646 2369 $map = $check->($map) if $check && $map;
1647# warn "entering ", $map->path, " at ($x, $y)\n" 2370 } else {
1648# if $map;
1649
1650 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 2371 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
2372 }
1651 2373
2374 $map
2375 };
2376
2377 if ($@) {
2378 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2379 LOG llevError | logBacktrace, Carp::longmess $@;
2380 }
2381
2382 if ($gen == $self->{_goto_generation}) {
2383 delete $self->{_goto_generation};
1652 $self->leave_link ($map, $x, $y); 2384 $self->leave_link ($map, $x, $y);
2385 }
2386
2387 $done->() if $done;
1653 })->prio (1); 2388 })->prio (1);
1654} 2389}
1655 2390
1656=item $player_object->enter_exit ($exit_object) 2391=item $player_object->enter_exit ($exit_object)
1657 2392
1659 2394
1660sub parse_random_map_params { 2395sub parse_random_map_params {
1661 my ($spec) = @_; 2396 my ($spec) = @_;
1662 2397
1663 my $rmp = { # defaults 2398 my $rmp = { # defaults
1664 xsize => 10, 2399 xsize => (cf::rndm 15, 40),
1665 ysize => 10, 2400 ysize => (cf::rndm 15, 40),
2401 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2402 #layout => string,
1666 }; 2403 };
1667 2404
1668 for (split /\n/, $spec) { 2405 for (split /\n/, $spec) {
1669 my ($k, $v) = split /\s+/, $_, 2; 2406 my ($k, $v) = split /\s+/, $_, 2;
1670 2407
1674 $rmp 2411 $rmp
1675} 2412}
1676 2413
1677sub prepare_random_map { 2414sub prepare_random_map {
1678 my ($exit) = @_; 2415 my ($exit) = @_;
2416
2417 my $guard = cf::lock_acquire "exit_prepare:$exit";
1679 2418
1680 # all this does is basically replace the /! path by 2419 # all this does is basically replace the /! path by
1681 # a new random map path (?random/...) with a seed 2420 # a new random map path (?random/...) with a seed
1682 # that depends on the exit object 2421 # that depends on the exit object
1683 2422
1684 my $rmp = parse_random_map_params $exit->msg; 2423 my $rmp = parse_random_map_params $exit->msg;
1685 2424
1686 if ($exit->map) { 2425 if ($exit->map) {
1687 $rmp->{region} = $exit->map->region_name; 2426 $rmp->{region} = $exit->region->name;
1688 $rmp->{origin_map} = $exit->map->path; 2427 $rmp->{origin_map} = $exit->map->path;
1689 $rmp->{origin_x} = $exit->x; 2428 $rmp->{origin_x} = $exit->x;
1690 $rmp->{origin_y} = $exit->y; 2429 $rmp->{origin_y} = $exit->y;
1691 } 2430 }
1692 2431
1693 $rmp->{random_seed} ||= $exit->random_seed; 2432 $rmp->{random_seed} ||= $exit->random_seed;
1694 2433
1695 my $data = cf::to_json $rmp; 2434 my $data = cf::to_json $rmp;
1696 my $md5 = Digest::MD5::md5_hex $data; 2435 my $md5 = Digest::MD5::md5_hex $data;
2436 my $meta = "$RANDOMDIR/$md5.meta";
1697 2437
1698 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 2438 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1699 aio_write $fh, 0, (length $data), $data, 0; 2439 aio_write $fh, 0, (length $data), $data, 0;
2440 undef $fh;
2441 aio_rename "$meta~", $meta;
1700 2442
1701 $exit->slaying ("?random/$md5"); 2443 $exit->slaying ("?random/$md5");
1702 $exit->msg (undef); 2444 $exit->msg (undef);
1703 } 2445 }
1704} 2446}
1706sub cf::object::player::enter_exit { 2448sub cf::object::player::enter_exit {
1707 my ($self, $exit) = @_; 2449 my ($self, $exit) = @_;
1708 2450
1709 return unless $self->type == cf::PLAYER; 2451 return unless $self->type == cf::PLAYER;
1710 2452
2453 if ($exit->slaying eq "/!") {
2454 #TODO: this should de-fi-ni-te-ly not be a sync-job
2455 # the problem is that $exit might not survive long enough
2456 # so it needs to be done right now, right here
2457 cf::sync_job { prepare_random_map $exit };
2458 }
2459
2460 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2461 my $hp = $exit->stats->hp;
2462 my $sp = $exit->stats->sp;
2463
1711 $self->enter_link; 2464 $self->enter_link;
2465
2466 # if exit is damned, update players death & WoR home-position
2467 $self->contr->savebed ($slaying, $hp, $sp)
2468 if $exit->flag (FLAG_DAMNED);
1712 2469
1713 (async { 2470 (async {
1714 $self->deactivate_recursive; # just to be sure 2471 $self->deactivate_recursive; # just to be sure
1715 unless (eval { 2472 unless (eval {
1716 prepare_random_map $exit 2473 $self->goto ($slaying, $hp, $sp);
1717 if $exit->slaying eq "/!";
1718
1719 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1720 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1721 2474
1722 1; 2475 1;
1723 }) { 2476 }) {
1724 $self->message ("Something went wrong deep within the crossfire server. " 2477 $self->message ("Something went wrong deep within the crossfire server. "
1725 . "I'll try to bring you back to the map you were before. " 2478 . "I'll try to bring you back to the map you were before. "
1726 . "Please report this to the dungeon master", 2479 . "Please report this to the dungeon master!",
1727 cf::NDI_UNIQUE | cf::NDI_RED); 2480 cf::NDI_UNIQUE | cf::NDI_RED);
1728 2481
1729 warn "ERROR in enter_exit: $@"; 2482 warn "ERROR in enter_exit: $@";
1730 $self->leave_link; 2483 $self->leave_link;
1731 } 2484 }
1732 })->prio (1); 2485 })->prio (1);
1745 2498
1746sub cf::client::send_drawinfo { 2499sub cf::client::send_drawinfo {
1747 my ($self, $text, $flags) = @_; 2500 my ($self, $text, $flags) = @_;
1748 2501
1749 utf8::encode $text; 2502 utf8::encode $text;
1750 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2503 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1751} 2504}
1752 2505
2506=item $client->send_msg ($channel, $msg, $color, [extra...])
2507
2508Send a drawinfo or msg packet to the client, formatting the msg for the
2509client if neccessary. C<$type> should be a string identifying the type of
2510the message, with C<log> being the default. If C<$color> is negative, suppress
2511the message unless the client supports the msg packet.
2512
2513=cut
2514
2515our %CHANNEL = (
2516 "c/identify" => {
2517 id => "identify",
2518 title => "Identify",
2519 reply => undef,
2520 tooltip => "Items recently identified",
2521 },
2522 "c/examine" => {
2523 id => "examine",
2524 title => "Examine",
2525 reply => undef,
2526 tooltip => "Signs and other items you examined",
2527 },
2528);
2529
2530sub cf::client::send_msg {
2531 my ($self, $channel, $msg, $color, @extra) = @_;
2532
2533 $msg = $self->pl->expand_cfpod ($msg);
2534
2535 $color &= cf::NDI_CLIENT_MASK; # just in case...
2536
2537 # check predefined channels, for the benefit of C
2538 $channel = $CHANNEL{$channel} if $CHANNEL{$channel};
2539
2540 if (ref $channel) {
2541 # send meta info to client, if not yet sent
2542 unless (exists $self->{channel}{$channel->{id}}) {
2543 $self->{channel}{$channel->{id}} = $channel;
2544 $self->ext_msg (channel_info => $channel)
2545 if $self->can_msg;
2546 }
2547
2548 $channel = $channel->{id};
2549 }
2550
2551 return unless @extra || length $msg;
2552
2553 if ($self->can_msg) {
2554 # default colour, mask it out
2555 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2556 if $color & cf::NDI_DEF;
2557
2558 $self->send_packet ("msg " . $self->{json_coder}->encode (
2559 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
2560 } else {
2561 if ($color >= 0) {
2562 # replace some tags by gcfclient-compatible ones
2563 for ($msg) {
2564 1 while
2565 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2566 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2567 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2568 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2569 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2570 }
2571
2572 $color &= cf::NDI_COLOR_MASK;
2573
2574 utf8::encode $msg;
2575
2576 if (0 && $msg =~ /\[/) {
2577 # COMMAND/INFO
2578 $self->send_packet ("drawextinfo $color 10 8 $msg")
2579 } else {
2580 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2581 $self->send_packet ("drawinfo $color $msg")
2582 }
2583 }
2584 }
2585}
2586
2587=item $client->ext_msg ($type, @msg)
2588
2589Sends an ext event to the client.
2590
2591=cut
2592
2593sub cf::client::ext_msg($$@) {
2594 my ($self, $type, @msg) = @_;
2595
2596 if ($self->extcmd == 2) {
2597 $self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2598 } elsif ($self->extcmd == 1) { # TODO: remove
2599 push @msg, msgtype => "event_$type";
2600 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2601 }
2602}
2603
2604=item $client->ext_reply ($msgid, @msg)
2605
2606Sends an ext reply to the client.
2607
2608=cut
2609
2610sub cf::client::ext_reply($$@) {
2611 my ($self, $id, @msg) = @_;
2612
2613 if ($self->extcmd == 2) {
2614 $self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2615 } elsif ($self->extcmd == 1) {
2616 #TODO: version 1, remove
2617 unshift @msg, msgtype => "reply", msgid => $id;
2618 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2619 }
2620}
1753 2621
1754=item $success = $client->query ($flags, "text", \&cb) 2622=item $success = $client->query ($flags, "text", \&cb)
1755 2623
1756Queues a query to the client, calling the given callback with 2624Queues a query to the client, calling the given callback with
1757the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2625the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1758C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. 2626C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1759 2627
1760Queries can fail, so check the return code. Or don't, as queries will become 2628Queries can fail, so check the return code. Or don't, as queries will
1761reliable at some point in the future. 2629become reliable at some point in the future.
1762 2630
1763=cut 2631=cut
1764 2632
1765sub cf::client::query { 2633sub cf::client::query {
1766 my ($self, $flags, $text, $cb) = @_; 2634 my ($self, $flags, $text, $cb) = @_;
1774 utf8::encode $text; 2642 utf8::encode $text;
1775 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 2643 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1776 2644
1777 $self->send_packet ($self->{query_queue}[0][0]) 2645 $self->send_packet ($self->{query_queue}[0][0])
1778 if @{ $self->{query_queue} } == 1; 2646 if @{ $self->{query_queue} } == 1;
2647
2648 1
1779} 2649}
1780 2650
1781cf::client->attach ( 2651cf::client->attach (
2652 on_connect => sub {
2653 my ($ns) = @_;
2654
2655 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
2656 },
1782 on_reply => sub { 2657 on_reply => sub {
1783 my ($ns, $msg) = @_; 2658 my ($ns, $msg) = @_;
1784 2659
1785 # this weird shuffling is so that direct followup queries 2660 # this weird shuffling is so that direct followup queries
1786 # get handled first 2661 # get handled first
1787 my $queue = delete $ns->{query_queue} 2662 my $queue = delete $ns->{query_queue}
1788 or return; # be conservative, not sure how that can happen, but we saw a crash here 2663 or return; # be conservative, not sure how that can happen, but we saw a crash here
1789 2664
1790 (shift @$queue)->[1]->($msg); 2665 (shift @$queue)->[1]->($msg);
2666 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1791 2667
1792 push @{ $ns->{query_queue} }, @$queue; 2668 push @{ $ns->{query_queue} }, @$queue;
1793 2669
1794 if (@{ $ns->{query_queue} } == @$queue) { 2670 if (@{ $ns->{query_queue} } == @$queue) {
1795 if (@$queue) { 2671 if (@$queue) {
1797 } else { 2673 } else {
1798 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; 2674 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1799 } 2675 }
1800 } 2676 }
1801 }, 2677 },
2678 on_exticmd => sub {
2679 my ($ns, $buf) = @_;
2680
2681 my $msg = eval { $ns->{json_coder}->decode ($buf) };
2682
2683 if (ref $msg) {
2684 my ($type, $reply, @payload) =
2685 "ARRAY" eq ref $msg
2686 ? @$msg
2687 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
2688
2689 my @reply;
2690
2691 if (my $cb = $EXTICMD{$type}) {
2692 @reply = $cb->($ns, @payload);
2693 }
2694
2695 $ns->ext_reply ($reply, @reply)
2696 if $reply;
2697
2698 } else {
2699 warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
2700 }
2701
2702 cf::override;
2703 },
1802); 2704);
1803 2705
1804=item $client->async (\&cb) 2706=item $client->async (\&cb)
1805 2707
1806Create a new coroutine, running the specified callback. The coroutine will 2708Create a new coroutine, running the specified callback. The coroutine will
1847our $safe = new Safe "safe"; 2749our $safe = new Safe "safe";
1848our $safe_hole = new Safe::Hole; 2750our $safe_hole = new Safe::Hole;
1849 2751
1850$SIG{FPE} = 'IGNORE'; 2752$SIG{FPE} = 'IGNORE';
1851 2753
1852$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 2754$safe->permit_only (Opcode::opset qw(
2755 :base_core :base_mem :base_orig :base_math
2756 grepstart grepwhile mapstart mapwhile
2757 sort time
2758));
1853 2759
1854# here we export the classes and methods available to script code 2760# here we export the classes and methods available to script code
1855 2761
1856=pod 2762=pod
1857 2763
1858The following fucntions and emthods are available within a safe environment: 2764The following functions and methods are available within a safe environment:
1859 2765
1860 cf::object contr pay_amount pay_player map 2766 cf::object
2767 contr pay_amount pay_player map x y force_find force_add
2768 insert remove name archname title slaying race decrease_ob_nr
2769
1861 cf::object::player player 2770 cf::object::player
1862 cf::player peaceful 2771 player
1863 cf::map trigger 2772
2773 cf::player
2774 peaceful
2775
2776 cf::map
2777 trigger
1864 2778
1865=cut 2779=cut
1866 2780
1867for ( 2781for (
1868 ["cf::object" => qw(contr pay_amount pay_player map)], 2782 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
2783 insert remove inv name archname title slaying race
2784 decrease_ob_nr)],
1869 ["cf::object::player" => qw(player)], 2785 ["cf::object::player" => qw(player)],
1870 ["cf::player" => qw(peaceful)], 2786 ["cf::player" => qw(peaceful)],
1871 ["cf::map" => qw(trigger)], 2787 ["cf::map" => qw(trigger)],
1872) { 2788) {
1873 no strict 'refs'; 2789 no strict 'refs';
1944=back 2860=back
1945 2861
1946=cut 2862=cut
1947 2863
1948############################################################################# 2864#############################################################################
2865# the server's init and main functions
1949 2866
1950=head2 EXTENSION DATABASE SUPPORT 2867sub load_facedata($) {
2868 my ($path) = @_;
1951 2869
1952Crossfire maintains a very simple database for extension use. It can 2870 # HACK to clear player env face cache, we need some signal framework
1953currently store anything that can be serialised using Storable, which 2871 # for this (global event?)
1954excludes objects. 2872 %ext::player_env::MUSIC_FACE_CACHE = ();
1955 2873
1956The parameter C<$family> should best start with the name of the extension 2874 my $enc = JSON::XS->new->utf8->canonical->relaxed;
1957using it, it should be unique.
1958 2875
1959=over 4 2876 warn "loading facedata from $path\n";
1960 2877
1961=item $hashref = cf::db_get $family 2878 my $facedata;
2879 0 < aio_load $path, $facedata
2880 or die "$path: $!";
1962 2881
1963Return a hashref for use by the extension C<$family>, which can be 2882 $facedata = Coro::Storable::thaw $facedata;
1964modified. After modifications, you have to call C<cf::db_dirty> or
1965C<cf::db_sync>.
1966 2883
1967=item $value = cf::db_get $family => $key 2884 $facedata->{version} == 2
2885 or cf::cleanup "$path: version mismatch, cannot proceed.";
1968 2886
1969Returns a single value from the database 2887 # patch in the exptable
1970 2888 $facedata->{resource}{"res/exp_table"} = {
1971=item cf::db_put $family => $hashref 2889 type => FT_RSRC,
1972 2890 data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1973Stores the given family hashref into the database. Updates are delayed, if
1974you want the data to be synced to disk immediately, use C<cf::db_sync>.
1975
1976=item cf::db_put $family => $key => $value
1977
1978Stores the given C<$value> in the family hash. Updates are delayed, if you
1979want the data to be synced to disk immediately, use C<cf::db_sync>.
1980
1981=item cf::db_dirty
1982
1983Marks the database as dirty, to be updated at a later time.
1984
1985=item cf::db_sync
1986
1987Immediately write the database to disk I<if it is dirty>.
1988
1989=cut
1990
1991our $DB;
1992
1993{
1994 my $path = cf::localdir . "/database.pst";
1995
1996 sub db_load() {
1997 $DB = stat $path ? Storable::retrieve $path : { };
1998 }
1999
2000 my $pid;
2001
2002 sub db_save() {
2003 waitpid $pid, 0 if $pid;
2004 if (0 == ($pid = fork)) {
2005 $DB->{_meta}{version} = 1;
2006 Storable::nstore $DB, "$path~";
2007 rename "$path~", $path;
2008 cf::_exit 0 if defined $pid;
2009 }
2010 }
2011
2012 my $dirty;
2013
2014 sub db_sync() {
2015 db_save if $dirty;
2016 undef $dirty;
2017 }
2018
2019 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2020 db_sync;
2021 }); 2891 };
2892 cf::cede_to_tick;
2022 2893
2023 sub db_dirty() {
2024 $dirty = 1;
2025 $idle->start;
2026 } 2894 {
2895 my $faces = $facedata->{faceinfo};
2027 2896
2028 sub db_get($;$) { 2897 while (my ($face, $info) = each %$faces) {
2029 @_ >= 2 2898 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2030 ? $DB->{$_[0]}{$_[1]} 2899 cf::face::set_visibility $idx, $info->{visibility};
2031 : ($DB->{$_[0]} ||= { }) 2900 cf::face::set_magicmap $idx, $info->{magicmap};
2032 } 2901 cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2902 cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2033 2903
2034 sub db_put($$;$) { 2904 cf::cede_to_tick;
2035 if (@_ >= 3) {
2036 $DB->{$_[0]}{$_[1]} = $_[2];
2037 } else {
2038 $DB->{$_[0]} = $_[1];
2039 }
2040 db_dirty;
2041 }
2042
2043 cf::global->attach (
2044 prio => 10000,
2045 on_cleanup => sub {
2046 db_sync;
2047 }, 2905 }
2048 );
2049}
2050 2906
2051############################################################################# 2907 while (my ($face, $info) = each %$faces) {
2052# the server's main() 2908 next unless $info->{smooth};
2909 my $idx = cf::face::find $face
2910 or next;
2911 if (my $smooth = cf::face::find $info->{smooth}) {
2912 cf::face::set_smooth $idx, $smooth;
2913 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2914 } else {
2915 warn "smooth face '$info->{smooth}' not found for face '$face'";
2916 }
2053 2917
2054sub cfg_load { 2918 cf::cede_to_tick;
2919 }
2920 }
2921
2922 {
2923 my $anims = $facedata->{animinfo};
2924
2925 while (my ($anim, $info) = each %$anims) {
2926 cf::anim::set $anim, $info->{frames}, $info->{facings};
2927 cf::cede_to_tick;
2928 }
2929
2930 cf::anim::invalidate_all; # d'oh
2931 }
2932
2933 {
2934 # TODO: for gcfclient pleasure, we should give resources
2935 # that gcfclient doesn't grok a >10000 face index.
2936 my $res = $facedata->{resource};
2937
2938 my $soundconf = delete $res->{"res/sound.conf"};
2939
2940 while (my ($name, $info) = each %$res) {
2941 my $idx = (cf::face::find $name) || cf::face::alloc $name;
2942 my $data;
2943
2944 if ($info->{type} & 1) {
2945 # prepend meta info
2946
2947 my $meta = $enc->encode ({
2948 name => $name,
2949 %{ $info->{meta} || {} },
2950 });
2951
2952 $data = pack "(w/a*)*", $meta, $info->{data};
2953 } else {
2954 $data = $info->{data};
2955 }
2956
2957 cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
2958 cf::face::set_type $idx, $info->{type};
2959
2960 cf::cede_to_tick;
2961 }
2962
2963 if ($soundconf) {
2964 $soundconf = $enc->decode (delete $soundconf->{data});
2965
2966 for (0 .. SOUND_CAST_SPELL_0 - 1) {
2967 my $sound = $soundconf->{compat}[$_]
2968 or next;
2969
2970 my $face = cf::face::find "sound/$sound->[1]";
2971 cf::sound::set $sound->[0] => $face;
2972 cf::sound::old_sound_index $_, $face; # gcfclient-compat
2973 }
2974
2975 while (my ($k, $v) = each %{$soundconf->{event}}) {
2976 my $face = cf::face::find "sound/$v";
2977 cf::sound::set $k => $face;
2978 }
2979 }
2980 }
2981
2982 1
2983}
2984
2985register_exticmd fx_want => sub {
2986 my ($ns, $want) = @_;
2987
2988 while (my ($k, $v) = each %$want) {
2989 $ns->fx_want ($k, $v);
2990 }
2991};
2992
2993sub reload_regions {
2994 # HACK to clear player env face cache, we need some signal framework
2995 # for this (global event?)
2996 %ext::player_env::MUSIC_FACE_CACHE = ();
2997
2998 load_resource_file "$MAPDIR/regions"
2999 or die "unable to load regions file\n";
3000
3001 for (cf::region::list) {
3002 $_->{match} = qr/$_->{match}/
3003 if exists $_->{match};
3004 }
3005}
3006
3007sub reload_facedata {
3008 load_facedata "$DATADIR/facedata"
3009 or die "unable to load facedata\n";
3010}
3011
3012sub reload_archetypes {
3013 load_resource_file "$DATADIR/archetypes"
3014 or die "unable to load archetypes\n";
3015 #d# NEED to laod twice to resolve forward references
3016 # this really needs to be done in an extra post-pass
3017 # (which needs to be synchronous, so solve it differently)
3018 load_resource_file "$DATADIR/archetypes"
3019 or die "unable to load archetypes\n";
3020}
3021
3022sub reload_treasures {
3023 load_resource_file "$DATADIR/treasures"
3024 or die "unable to load treasurelists\n";
3025}
3026
3027sub reload_resources {
3028 warn "reloading resource files...\n";
3029
3030 reload_regions;
3031 reload_facedata;
3032 #reload_archetypes;#d#
3033 reload_archetypes;
3034 reload_treasures;
3035
3036 warn "finished reloading resource files\n";
3037}
3038
3039sub init {
3040 reload_resources;
3041}
3042
3043sub reload_config {
2055 open my $fh, "<:utf8", cf::confdir . "/config" 3044 open my $fh, "<:utf8", "$CONFDIR/config"
2056 or return; 3045 or return;
2057 3046
2058 local $/; 3047 local $/;
2059 *CFG = YAML::Syck::Load <$fh>; 3048 *CFG = YAML::Syck::Load <$fh>;
2060 3049
2063 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset}; 3052 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2064 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset}; 3053 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2065 3054
2066 if (exists $CFG{mlockall}) { 3055 if (exists $CFG{mlockall}) {
2067 eval { 3056 eval {
2068 $CFG{mlockall} ? &mlockall : &munlockall 3057 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2069 and die "WARNING: m(un)lockall failed: $!\n"; 3058 and die "WARNING: m(un)lockall failed: $!\n";
2070 }; 3059 };
2071 warn $@ if $@; 3060 warn $@ if $@;
2072 } 3061 }
2073} 3062}
2074 3063
2075sub main { 3064sub main {
2076 # we must not ever block the main coroutine 3065 # we must not ever block the main coroutine
2077 local $Coro::idle = sub { 3066 local $Coro::idle = sub {
2078 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3067 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3068 (async {
2079 async { Event::one_event }; 3069 Event::one_event;
3070 })->prio (Coro::PRIO_MAX);
2080 }; 3071 };
2081 3072
2082 cfg_load; 3073 reload_config;
2083 db_load; 3074 db_init;
2084 load_extensions; 3075 load_extensions;
3076
3077 $TICK_WATCHER->start;
2085 Event::loop; 3078 Event::loop;
2086} 3079}
2087 3080
2088############################################################################# 3081#############################################################################
2089# initialisation 3082# initialisation and cleanup
2090 3083
3084# install some emergency cleanup handlers
3085BEGIN {
3086 for my $signal (qw(INT HUP TERM)) {
3087 Event->signal (
3088 reentrant => 0,
3089 data => WF_AUTOCANCEL,
3090 signal => $signal,
3091 prio => 0,
3092 cb => sub {
3093 cf::cleanup "SIG$signal";
3094 },
3095 );
3096 }
3097}
3098
3099sub write_runtime {
3100 my $runtime = "$LOCALDIR/runtime";
3101
3102 # first touch the runtime file to show we are still running:
3103 # the fsync below can take a very very long time.
3104
3105 IO::AIO::aio_utime $runtime, undef, undef;
3106
3107 my $guard = cf::lock_acquire "write_runtime";
3108
3109 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
3110 or return;
3111
3112 my $value = $cf::RUNTIME + 90 + 10;
3113 # 10 is the runtime save interval, for a monotonic clock
3114 # 60 allows for the watchdog to kill the server.
3115
3116 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3117 and return;
3118
3119 # always fsync - this file is important
3120 aio_fsync $fh
3121 and return;
3122
3123 # touch it again to show we are up-to-date
3124 aio_utime $fh, undef, undef;
3125
3126 close $fh
3127 or return;
3128
3129 aio_rename "$runtime~", $runtime
3130 and return;
3131
3132 warn "runtime file written.\n";
3133
3134 1
3135}
3136
3137sub emergency_save() {
3138 my $freeze_guard = cf::freeze_mainloop;
3139
3140 warn "enter emergency perl save\n";
3141
3142 cf::sync_job {
3143 # use a peculiar iteration method to avoid tripping on perl
3144 # refcount bugs in for. also avoids problems with players
3145 # and maps saved/destroyed asynchronously.
3146 warn "begin emergency player save\n";
3147 for my $login (keys %cf::PLAYER) {
3148 my $pl = $cf::PLAYER{$login} or next;
3149 $pl->valid or next;
3150 $pl->save;
3151 }
3152 warn "end emergency player save\n";
3153
3154 warn "begin emergency map save\n";
3155 for my $path (keys %cf::MAP) {
3156 my $map = $cf::MAP{$path} or next;
3157 $map->valid or next;
3158 $map->save;
3159 }
3160 warn "end emergency map save\n";
3161
3162 warn "begin emergency database checkpoint\n";
3163 BDB::db_env_txn_checkpoint $DB_ENV;
3164 warn "end emergency database checkpoint\n";
3165 };
3166
3167 warn "leave emergency perl save\n";
3168}
3169
3170sub post_cleanup {
3171 my ($make_core) = @_;
3172
3173 warn Carp::longmess "post_cleanup backtrace"
3174 if $make_core;
3175}
3176
2091sub reload() { 3177sub do_reload_perl() {
2092 # can/must only be called in main 3178 # can/must only be called in main
2093 if ($Coro::current != $Coro::main) { 3179 if ($Coro::current != $Coro::main) {
2094 warn "can only reload from main coroutine\n"; 3180 warn "can only reload from main coroutine";
2095 return; 3181 return;
2096 } 3182 }
2097 3183
2098 warn "reloading..."; 3184 warn "reloading...";
2099 3185
2100 my $guard = freeze_mainloop; 3186 warn "entering sync_job";
3187
3188 cf::sync_job {
3189 cf::write_runtime; # external watchdog should not bark
2101 cf::emergency_save; 3190 cf::emergency_save;
3191 cf::write_runtime; # external watchdog should not bark
2102 3192
2103 eval { 3193 warn "syncing database to disk";
3194 BDB::db_env_txn_checkpoint $DB_ENV;
3195
2104 # if anything goes wrong in here, we should simply crash as we already saved 3196 # if anything goes wrong in here, we should simply crash as we already saved
2105 3197
2106 # cancel all watchers 3198 warn "cancelling all WF_AUTOCANCEL watchers";
2107 for (Event::all_watchers) { 3199 for (Event::all_watchers) {
2108 $_->cancel if $_->data & WF_AUTOCANCEL; 3200 $_->cancel if $_->data & WF_AUTOCANCEL;
2109 } 3201 }
2110 3202
3203 warn "flushing outstanding aio requests";
3204 for (;;) {
3205 BDB::flush;
3206 IO::AIO::flush;
3207 Coro::cede;
3208 last unless IO::AIO::nreqs || BDB::nreqs;
3209 warn "iterate...";
3210 }
3211
3212 ++$RELOAD;
3213
2111 # cancel all extension coros 3214 warn "cancelling all extension coros";
2112 $_->cancel for values %EXT_CORO; 3215 $_->cancel for values %EXT_CORO;
2113 %EXT_CORO = (); 3216 %EXT_CORO = ();
2114 3217
2115 # unload all extensions 3218 warn "removing commands";
2116 for (@exts) { 3219 %COMMAND = ();
3220
3221 warn "removing ext/exti commands";
3222 %EXTCMD = ();
3223 %EXTICMD = ();
3224
3225 warn "unloading/nuking all extensions";
3226 for my $pkg (@EXTS) {
2117 warn "unloading <$_>"; 3227 warn "... unloading $pkg";
2118 unload_extension $_; 3228
3229 if (my $cb = $pkg->can ("unload")) {
3230 eval {
3231 $cb->($pkg);
3232 1
3233 } or warn "$pkg unloaded, but with errors: $@";
2119 } 3234 }
2120 3235
3236 warn "... nuking $pkg";
3237 Symbol::delete_package $pkg;
3238 }
3239
2121 # unload all modules loaded from $LIBDIR 3240 warn "unloading all perl modules loaded from $LIBDIR";
2122 while (my ($k, $v) = each %INC) { 3241 while (my ($k, $v) = each %INC) {
2123 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 3242 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2124 3243
2125 warn "removing <$k>"; 3244 warn "... unloading $k";
2126 delete $INC{$k}; 3245 delete $INC{$k};
2127 3246
2128 $k =~ s/\.pm$//; 3247 $k =~ s/\.pm$//;
2129 $k =~ s/\//::/g; 3248 $k =~ s/\//::/g;
2130 3249
2133 } 3252 }
2134 3253
2135 Symbol::delete_package $k; 3254 Symbol::delete_package $k;
2136 } 3255 }
2137 3256
2138 # sync database to disk
2139 cf::db_sync;
2140 IO::AIO::flush;
2141
2142 # get rid of safe::, as good as possible 3257 warn "getting rid of safe::, as good as possible";
2143 Symbol::delete_package "safe::$_" 3258 Symbol::delete_package "safe::$_"
2144 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3259 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2145 3260
2146 # remove register_script_function callbacks
2147 # TODO
2148
2149 # unload cf.pm "a bit" 3261 warn "unloading cf.pm \"a bit\"";
2150 delete $INC{"cf.pm"}; 3262 delete $INC{"cf.pm"};
3263 delete $INC{"cf/pod.pm"};
2151 3264
2152 # don't, removes xs symbols, too, 3265 # don't, removes xs symbols, too,
2153 # and global variables created in xs 3266 # and global variables created in xs
2154 #Symbol::delete_package __PACKAGE__; 3267 #Symbol::delete_package __PACKAGE__;
2155 3268
2156 # reload cf.pm 3269 warn "unload completed, starting to reload now";
3270
2157 warn "reloading cf.pm"; 3271 warn "reloading cf.pm";
2158 require cf; 3272 require cf;
2159 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3273 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2160 3274
2161 # load config and database again 3275 warn "loading config and database again";
2162 cf::cfg_load; 3276 cf::reload_config;
2163 cf::db_load;
2164 3277
2165 # load extensions
2166 warn "load extensions"; 3278 warn "loading extensions";
2167 cf::load_extensions; 3279 cf::load_extensions;
2168 3280
2169 # reattach attachments to objects 3281 warn "reattaching attachments to objects/players";
2170 warn "reattach"; 3282 _global_reattach; # objects, sockets
2171 _global_reattach; 3283 warn "reattaching attachments to maps";
2172 }; 3284 reattach $_ for values %MAP;
3285 warn "reattaching attachments to players";
3286 reattach $_ for values %PLAYER;
2173 3287
2174 if ($@) { 3288 warn "leaving sync_job";
3289
3290 1
3291 } or do {
2175 warn $@; 3292 warn $@;
2176 warn "error while reloading, exiting."; 3293 warn "error while reloading, exiting.";
2177 exit 1; 3294 exit 1;
2178 } 3295 };
2179 3296
2180 warn "reloaded successfully"; 3297 warn "reloaded";
2181}; 3298};
2182 3299
2183############################################################################# 3300our $RELOAD_WATCHER; # used only during reload
2184 3301
2185unless ($LINK_MAP) { 3302sub reload_perl() {
2186 $LINK_MAP = cf::map::new; 3303 # doing reload synchronously and two reloads happen back-to-back,
3304 # coro crashes during coro_state_free->destroy here.
2187 3305
2188 $LINK_MAP->width (41); 3306 $RELOAD_WATCHER ||= Event->timer (
2189 $LINK_MAP->height (41); 3307 reentrant => 0,
2190 $LINK_MAP->alloc;
2191 $LINK_MAP->path ("{link}");
2192 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2193 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2194
2195 # dirty hack because... archetypes are not yet loaded
2196 Event->timer (
2197 after => 10, 3308 after => 0,
3309 data => WF_AUTOCANCEL,
2198 cb => sub { 3310 cb => sub {
2199 $_[0]->w->cancel; 3311 do_reload_perl;
2200 3312 undef $RELOAD_WATCHER;
2201 # provide some exits "home"
2202 my $exit = cf::object::new "exit";
2203
2204 $exit->slaying ($EMERGENCY_POSITION->[0]);
2205 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2206 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2207
2208 $LINK_MAP->insert ($exit->clone, 19, 19);
2209 $LINK_MAP->insert ($exit->clone, 19, 20);
2210 $LINK_MAP->insert ($exit->clone, 19, 21);
2211 $LINK_MAP->insert ($exit->clone, 20, 19);
2212 $LINK_MAP->insert ($exit->clone, 20, 21);
2213 $LINK_MAP->insert ($exit->clone, 21, 19);
2214 $LINK_MAP->insert ($exit->clone, 21, 20);
2215 $LINK_MAP->insert ($exit->clone, 21, 21);
2216
2217 $exit->destroy;
2218 }); 3313 },
2219 3314 );
2220 $LINK_MAP->{deny_save} = 1;
2221 $LINK_MAP->{deny_reset} = 1;
2222
2223 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2224} 3315}
2225
2226register "<global>", __PACKAGE__;
2227 3316
2228register_command "reload" => sub { 3317register_command "reload" => sub {
2229 my ($who, $arg) = @_; 3318 my ($who, $arg) = @_;
2230 3319
2231 if ($who->flag (FLAG_WIZ)) { 3320 if ($who->flag (FLAG_WIZ)) {
2232 $who->message ("start of reload.");
2233 reload;
2234 $who->message ("end of reload."); 3321 $who->message ("reloading server.");
3322 async { reload_perl };
2235 } 3323 }
2236}; 3324};
2237 3325
2238unshift @INC, $LIBDIR; 3326unshift @INC, $LIBDIR;
2239 3327
3328my $bug_warning = 0;
3329
3330our @WAIT_FOR_TICK;
3331our @WAIT_FOR_TICK_BEGIN;
3332
3333sub wait_for_tick {
3334 return unless $TICK_WATCHER->is_active;
3335 return if $Coro::current == $Coro::main;
3336
3337 my $signal = new Coro::Signal;
3338 push @WAIT_FOR_TICK, $signal;
3339 $signal->wait;
3340}
3341
3342sub wait_for_tick_begin {
3343 return unless $TICK_WATCHER->is_active;
3344 return if $Coro::current == $Coro::main;
3345
3346 my $signal = new Coro::Signal;
3347 push @WAIT_FOR_TICK_BEGIN, $signal;
3348 $signal->wait;
3349}
3350
3351 my $min = 1e6;#d#
3352 my $avg = 10;
2240$TICK_WATCHER = Event->timer ( 3353$TICK_WATCHER = Event->timer (
2241 reentrant => 0, 3354 reentrant => 0,
3355 parked => 1,
2242 prio => 0, 3356 prio => 0,
2243 at => $NEXT_TICK || $TICK, 3357 at => $NEXT_TICK || $TICK,
2244 data => WF_AUTOCANCEL, 3358 data => WF_AUTOCANCEL,
2245 cb => sub { 3359 cb => sub {
3360 if ($Coro::current != $Coro::main) {
3361 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3362 unless ++$bug_warning > 10;
3363 return;
3364 }
3365
3366 $NOW = $tick_start = Event::time;
3367
2246 cf::server_tick; # one server iteration 3368 cf::server_tick; # one server iteration
3369
3370 0 && sync_job {#d#
3371 for(1..10) {
3372 my $t = Event::time;
3373 my $map = my $map = new_from_path cf::map "/tmp/x.map"
3374 or die;
3375
3376 $map->width (50);
3377 $map->height (50);
3378 $map->alloc;
3379 $map->_load_objects ("/tmp/x.map", 1);
3380 my $t = Event::time - $t;
3381
3382 #next unless $t < 0.0013;#d#
3383 if ($t < $min) {
3384 $min = $t;
3385 }
3386 $avg = $avg * 0.99 + $t * 0.01;
3387 }
3388 warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
3389 exit 0;
3390 # 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
3391 };
3392
2247 $RUNTIME += $TICK; 3393 $RUNTIME += $TICK;
2248 $NEXT_TICK += $TICK; 3394 $NEXT_TICK += $TICK;
2249 3395
3396 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3397 $NEXT_RUNTIME_WRITE = $NOW + 10;
3398 Coro::async_pool {
3399 write_runtime
3400 or warn "ERROR: unable to write runtime file: $!";
3401 };
3402 }
3403
3404# my $AFTER = Event::time;
3405# warn $AFTER - $NOW;#d#
3406
3407 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3408 $sig->send;
3409 }
3410 while (my $sig = shift @WAIT_FOR_TICK) {
3411 $sig->send;
3412 }
3413
3414 $NOW = Event::time;
3415
2250 # if we are delayed by four ticks or more, skip them all 3416 # if we are delayed by four ticks or more, skip them all
2251 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 3417 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2252 3418
2253 $TICK_WATCHER->at ($NEXT_TICK); 3419 $TICK_WATCHER->at ($NEXT_TICK);
2254 $TICK_WATCHER->start; 3420 $TICK_WATCHER->start;
3421
3422 $LOAD = ($NOW - $tick_start) / $TICK;
3423 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3424
3425 _post_tick;
3426
3427
2255 }, 3428 },
2256); 3429);
2257 3430
3431{
2258IO::AIO::max_poll_time $TICK * 0.2; 3432 BDB::max_poll_time $TICK * 0.1;
2259 3433 $BDB_POLL_WATCHER = Event->io (
2260Event->io ( 3434 reentrant => 0,
2261 fd => IO::AIO::poll_fileno, 3435 fd => BDB::poll_fileno,
2262 poll => 'r', 3436 poll => 'r',
2263 prio => 5, 3437 prio => 0,
2264 data => WF_AUTOCANCEL,
2265 cb => \&IO::AIO::poll_cb,
2266);
2267
2268Event->timer (
2269 data => WF_AUTOCANCEL, 3438 data => WF_AUTOCANCEL,
2270 after => 0, 3439 cb => \&BDB::poll_cb,
2271 interval => 10, 3440 );
2272 cb => sub { 3441 BDB::min_parallel 8;
2273 (Coro::unblock_sub { 3442
2274 write_runtime 3443 BDB::set_sync_prepare {
2275 or warn "ERROR: unable to write runtime file: $!"; 3444 my $status;
3445 my $current = $Coro::current;
3446 (
3447 sub {
3448 $status = $!;
3449 $current->ready; undef $current;
3450 },
3451 sub {
3452 Coro::schedule while defined $current;
3453 $! = $status;
3454 },
3455 )
3456 };
3457
3458 unless ($DB_ENV) {
3459 $DB_ENV = BDB::db_env_create;
3460
3461 cf::sync_job {
3462 eval {
3463 BDB::db_env_open
3464 $DB_ENV,
3465 $BDBDIR,
3466 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3467 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3468 0666;
3469
3470 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3471
3472 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
3473 $DB_ENV->set_lk_detect;
3474 };
3475
3476 cf::cleanup "db_env_open(db): $@" if $@;
2276 })->(); 3477 };
2277 }, 3478 }
2278); 3479}
3480
3481{
3482 IO::AIO::min_parallel 8;
3483
3484 undef $Coro::AIO::WATCHER;
3485 IO::AIO::max_poll_time $TICK * 0.1;
3486 $AIO_POLL_WATCHER = Event->io (
3487 reentrant => 0,
3488 data => WF_AUTOCANCEL,
3489 fd => IO::AIO::poll_fileno,
3490 poll => 'r',
3491 prio => 6,
3492 cb => \&IO::AIO::poll_cb,
3493 );
3494}
3495
3496my $_log_backtrace;
3497
3498sub _log_backtrace {
3499 my ($msg, @addr) = @_;
3500
3501 $msg =~ s/\n//;
3502
3503 # limit the # of concurrent backtraces
3504 if ($_log_backtrace < 2) {
3505 ++$_log_backtrace;
3506 async {
3507 my @bt = fork_call {
3508 @addr = map { sprintf "%x", $_ } @addr;
3509 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3510 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3511 or die "addr2line: $!";
3512
3513 my @funcs;
3514 my @res = <$fh>;
3515 chomp for @res;
3516 while (@res) {
3517 my ($func, $line) = splice @res, 0, 2, ();
3518 push @funcs, "[$func] $line";
3519 }
3520
3521 @funcs
3522 };
3523
3524 LOG llevInfo, "[ABT] $msg\n";
3525 LOG llevInfo, "[ABT] $_\n" for @bt;
3526 --$_log_backtrace;
3527 };
3528 } else {
3529 LOG llevInfo, "[ABT] $msg\n";
3530 LOG llevInfo, "[ABT] [suppressed]\n";
3531 }
3532}
3533
3534# load additional modules
3535use cf::pod;
2279 3536
2280END { cf::emergency_save } 3537END { cf::emergency_save }
2281 3538
22821 35391
2283 3540

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