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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.125 by root, Tue Jan 2 23:06:39 2007 UTC vs.
Revision 1.343 by root, Mon Aug 27 01:13:48 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 1.4 ();
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$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 48$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
92our %PLAYER; # all users
52our %MAP; # all maps 93our %MAP; # all maps
53our $LINK_MAP; # the special {link} map 94our $LINK_MAP; # the special {link} map, which is always available
54our $FREEZE; 95
55our $RANDOM_MAPS = cf::localdir . "/random"; 96# used to convert map paths into valid unix filenames by replacing / by ∕
56our %EXT_CORO; 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 116our $EMERGENCY_POSITION;
75our $LINK_MAP;
76 117
77our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 118sub cf::map::normalise;
78 119
79############################################################################# 120#############################################################################
80 121
81=head2 GLOBAL VARIABLES 122=head2 GLOBAL VARIABLES
82 123
89=item $cf::RUNTIME 130=item $cf::RUNTIME
90 131
91The 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
92every server tick. 133every server tick.
93 134
94=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
95 138
96The perl library directory, where extensions and cf-specific modules can 139Various directories - "/etc", read-only install directory, perl-library
97be 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.
98 143
99=item $cf::NOW 144=item $cf::NOW
100 145
101The time of the last (current) server tick. 146The time of the last (current) server tick.
102 147
103=item $cf::TICK 148=item $cf::TICK
104 149
105The 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.
106 161
107=item %cf::CFG 162=item %cf::CFG
108 163
109Configuration for the server, loaded from C</etc/crossfire/config>, or 164Configuration for the server, loaded from C</etc/crossfire/config>, or
110from 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.
111 178
112=back 179=back
113 180
114=cut 181=cut
115 182
116BEGIN { 183BEGIN {
117 *CORE::GLOBAL::warn = sub { 184 *CORE::GLOBAL::warn = sub {
118 my $msg = join "", @_; 185 my $msg = join "", @_;
119 utf8::encode $msg;
120 186
121 $msg .= "\n" 187 $msg .= "\n"
122 unless $msg =~ /\n$/; 188 unless $msg =~ /\n$/;
123 189
190 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
191
192 utf8::encode $msg;
124 LOG llevError, "cfperl: $msg"; 193 LOG llevError, $msg;
125 }; 194 };
126} 195}
127 196
128@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 197@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 198@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 199@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 200@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132@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';
133@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)
134 204
135# 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
136# within the Safe compartment. 206# within the Safe compartment.
137for my $pkg (qw( 207for my $pkg (qw(
138 cf::global cf::attachable 208 cf::global cf::attachable
147 217
148$Event::DIED = sub { 218$Event::DIED = sub {
149 warn "error in event callback: @_"; 219 warn "error in event callback: @_";
150}; 220};
151 221
152my %ext_pkg; 222#############################################################################
153my @exts;
154my @hook;
155 223
156=head2 UTILITY FUNCTIONS 224=head2 UTILITY FUNCTIONS
157 225
158=over 4 226=over 4
159 227
160=cut 228=item dumpval $ref
161 229
162use 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}
163 250
164=item $ref = cf::from_json $json 251=item $ref = cf::from_json $json
165 252
166Converts a JSON string into the corresponding perl data structure. 253Converts a JSON string into the corresponding perl data structure.
167 254
168=cut
169
170sub from_json($) {
171 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172 JSON::Syck::Load $_[0]
173}
174
175=item $json = cf::to_json $ref 255=item $json = cf::to_json $ref
176 256
177Converts a perl data structure into its JSON representation. 257Converts a perl data structure into its JSON representation.
178 258
179=cut 259=cut
180 260
181sub to_json($) { 261our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183 JSON::Syck::Dump $_[0]
184}
185 262
186=item my $guard = cf::guard { BLOCK } 263sub to_json ($) { $json_coder->encode ($_[0]) }
187 264sub from_json ($) { $json_coder->decode ($_[0]) }
188Run the given callback when the guard object gets destroyed (useful for
189coroutine cancellations).
190
191You can call C<< ->cancel >> on the guard object to stop the block from
192being executed.
193
194=cut
195
196sub guard(&) {
197 bless \(my $cb = $_[0]), cf::guard::;
198}
199
200sub cf::guard::cancel {
201 ${$_[0]} = sub { };
202}
203
204sub cf::guard::DESTROY {
205 ${$_[0]}->();
206}
207 265
208=item cf::lock_wait $string 266=item cf::lock_wait $string
209 267
210Wait until the given lock is available. See cf::lock_acquire. 268Wait until the given lock is available. See cf::lock_acquire.
211 269
212=item my $lock = cf::lock_acquire $string 270=item my $lock = cf::lock_acquire $string
213 271
214Wait 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
215a 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,
216for example when the coroutine gets canceled), the lock is automatically 274for example when the coroutine gets canceled), the lock is automatically
217returned. 275returned.
218 276
219Lock names should begin with a unique identifier (for example, find_map 277Lock names should begin with a unique identifier (for example, cf::map::find
220uses map_find and load_map uses map_load). 278uses map_find and cf::map::load uses map_load).
279
280=item $locked = cf::lock_active $string
281
282Return true if the lock is currently active, i.e. somebody has locked it.
221 283
222=cut 284=cut
223 285
224our %LOCK; 286our %LOCK;
225 287
239 # wait, to be sure we are not locked 301 # wait, to be sure we are not locked
240 lock_wait $key; 302 lock_wait $key;
241 303
242 $LOCK{$key} = []; 304 $LOCK{$key} = [];
243 305
244 cf::guard { 306 Coro::guard {
245 # wake up all waiters, to be on the safe side 307 # wake up all waiters, to be on the safe side
246 $_->ready for @{ delete $LOCK{$key} }; 308 $_->ready for @{ delete $LOCK{$key} };
247 } 309 }
248} 310}
249 311
312sub lock_active($) {
313 my ($key) = @_;
314
315 ! ! $LOCK{$key}
316}
317
318sub freeze_mainloop {
319 return unless $TICK_WATCHER->is_active;
320
321 my $guard = Coro::guard {
322 $TICK_WATCHER->start;
323 };
324 $TICK_WATCHER->stop;
325 $guard
326}
327
328=item cf::get_slot $time[, $priority[, $name]]
329
330Allocate $time seconds of blocking CPU time at priority C<$priority>:
331This call blocks and returns only when you have at least C<$time> seconds
332of cpu time till the next tick. The slot is only valid till the next cede.
333
334The optional C<$name> can be used to identify the job to run. It might be
335used for statistical purposes and should identify the same time-class.
336
337Useful for short background jobs.
338
339=cut
340
341our @SLOT_QUEUE;
342our $SLOT_QUEUE;
343
344$SLOT_QUEUE->cancel if $SLOT_QUEUE;
345$SLOT_QUEUE = Coro::async {
346 my $signal = new Coro::Signal;
347
348 while () {
349 next_job:
350 my $avail = cf::till_tick;
351 if ($avail > 0.01) {
352 for (0 .. $#SLOT_QUEUE) {
353 if ($SLOT_QUEUE[$_][0] < $avail) {
354 my $job = splice @SLOT_QUEUE, $_, 1, ();
355 $job->[2]->send;
356 Coro::cede;
357 goto next_job;
358 }
359 }
360 }
361
362 if (@SLOT_QUEUE) {
363 # we do not use wait_For_tick() as it returns immediately when tick is inactive
364 push @cf::WAIT_FOR_TICK, $signal;
365 $signal->wait;
366 } else {
367 Coro::schedule;
368 }
369 }
370};
371
372sub get_slot($;$$) {
373 my ($time, $pri, $name) = @_;
374
375 $time = $TICK * .6 if $time > $TICK * .6;
376 my $sig = new Coro::Signal;
377
378 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
379 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
380 $SLOT_QUEUE->ready;
381 $sig->wait;
382}
383
384=item cf::async { BLOCK }
385
386Currently the same as Coro::async_pool, meaning you cannot use
387C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
388thing you are allowed to do is call C<prio> on it.
389
390=cut
391
392BEGIN { *async = \&Coro::async_pool }
393
250=item cf::sync_job { BLOCK } 394=item cf::sync_job { BLOCK }
251 395
252The design of crossfire+ requires that the main coro ($Coro::main) is 396The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253always able to handle events or runnable, as crossfire+ is only partly 397is always able to handle events or runnable, as Crossfire TRT is only
254reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 398partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
399acceptable.
255 400
256If it must be done, put the blocking parts into C<sync_job>. This will run 401If it must be done, put the blocking parts into C<sync_job>. This will run
257the given BLOCK in another coroutine while waiting for the result. The 402the given BLOCK in another coroutine while waiting for the result. The
258server will be frozen during this time, so the block should either finish 403server will be frozen during this time, so the block should either finish
259fast or be very important. 404fast or be very important.
262 407
263sub sync_job(&) { 408sub sync_job(&) {
264 my ($job) = @_; 409 my ($job) = @_;
265 410
266 if ($Coro::current == $Coro::main) { 411 if ($Coro::current == $Coro::main) {
412 my $time = Event::time;
413
267 # this is the main coro, too bad, we have to block 414 # this is the main coro, too bad, we have to block
268 # till the operation succeeds, freezing the server :/ 415 # till the operation succeeds, freezing the server :/
269 416
270 # TODO: use suspend/resume instead 417 # TODO: use suspend/resume instead
271 # (but this is cancel-safe) 418 # (but this is cancel-safe)
272 local $FREEZE = 1; 419 my $freeze_guard = freeze_mainloop;
273 420
274 my $busy = 1; 421 my $busy = 1;
275 my @res; 422 my @res;
276 423
277 (Coro::async { 424 (async {
278 @res = eval { $job->() }; 425 @res = eval { $job->() };
279 warn $@ if $@; 426 warn $@ if $@;
280 undef $busy; 427 undef $busy;
281 })->prio (Coro::PRIO_MAX); 428 })->prio (Coro::PRIO_MAX);
282 429
283 while ($busy) { 430 while ($busy) {
284 Coro::cede_notself; 431 Coro::cede or Event::one_event;
285 Event::one_event unless Coro::nready;
286 } 432 }
433
434 $time = Event::time - $time;
435
436 LOG llevError | logBacktrace, Carp::longmess "long sync job"
437 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
438
439 $tick_start += $time; # do not account sync jobs to server load
287 440
288 wantarray ? @res : $res[0] 441 wantarray ? @res : $res[0]
289 } else { 442 } else {
290 # we are in another coroutine, how wonderful, everything just works 443 # we are in another coroutine, how wonderful, everything just works
291 444
292 $job->() 445 $job->()
293 } 446 }
294} 447}
295 448
296=item $coro = cf::coro { BLOCK } 449=item $coro = cf::async_ext { BLOCK }
297 450
298Creates and returns a new coro. This coro is automcatially being canceled 451Like async, but this coro is automatically being canceled when the
299when the extension calling this is being unloaded. 452extension calling this is being unloaded.
300 453
301=cut 454=cut
302 455
303sub coro(&) { 456sub async_ext(&) {
304 my $cb = shift; 457 my $cb = shift;
305 458
306 my $coro; $coro = async { 459 my $coro = &Coro::async ($cb);
307 eval {
308 $cb->();
309 };
310 warn $@ if $@;
311 };
312 460
313 $coro->on_destroy (sub { 461 $coro->on_destroy (sub {
314 delete $EXT_CORO{$coro+0}; 462 delete $EXT_CORO{$coro+0};
315 }); 463 });
316 $EXT_CORO{$coro+0} = $coro; 464 $EXT_CORO{$coro+0} = $coro;
317 465
318 $coro 466 $coro
319} 467}
320 468
321sub write_runtime { 469=item fork_call { }, $args
322 my $runtime = cf::localdir . "/runtime";
323 470
324 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 471Executes the given code block with the given arguments in a seperate
325 or return; 472process, returning the results. Everything must be serialisable with
473Coro::Storable. May, of course, block. Note that the executed sub may
474never block itself or use any form of Event handling.
326 475
327 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 476=cut
328 (aio_write $fh, 0, (length $value), $value, 0) <= 0
329 and return;
330 477
331 aio_fsync $fh 478sub fork_call(&@) {
332 and return; 479 my ($cb, @args) = @_;
333 480
334 close $fh 481 # we seemingly have to make a local copy of the whole thing,
335 or return; 482 # otherwise perl prematurely frees the stuff :/
483 # TODO: investigate and fix (liekly this will be rather laborious)
336 484
337 aio_rename "$runtime~", $runtime 485 my @res = Coro::Util::fork_eval {
338 and return; 486 reset_signals;
487 &$cb
488 }, @args;
339 489
490 wantarray ? @res : $res[-1]
491}
492
493=item $value = cf::db_get $family => $key
494
495Returns a single value from the environment database.
496
497=item cf::db_put $family => $key => $value
498
499Stores the given C<$value> in the family. It can currently store binary
500data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
501
502=cut
503
504our $DB;
505
506sub db_init {
507 unless ($DB) {
508 $DB = BDB::db_create $DB_ENV;
509
510 cf::sync_job {
511 eval {
512 $DB->set_flags (BDB::CHKSUM);
513
514 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
515 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
516 cf::cleanup "db_open(db): $!" if $!;
517 };
518 cf::cleanup "db_open(db): $@" if $@;
519 };
340 1 520 }
521}
522
523sub db_get($$) {
524 my $key = "$_[0]/$_[1]";
525
526 cf::sync_job {
527 BDB::db_get $DB, undef, $key, my $data;
528
529 $! ? ()
530 : $data
531 }
532}
533
534sub db_put($$$) {
535 BDB::dbreq_pri 4;
536 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
537}
538
539=item cf::cache $id => [$paths...], $processversion => $process
540
541Generic caching function that returns the value of the resource $id,
542caching and regenerating as required.
543
544This function can block.
545
546=cut
547
548sub cache {
549 my ($id, $src, $processversion, $process) = @_;
550
551 my $meta =
552 join "\x00",
553 $processversion,
554 map {
555 aio_stat $_
556 and Carp::croak "$_: $!";
557
558 ($_, (stat _)[7,9])
559 } @$src;
560
561 my $dbmeta = db_get cache => "$id/meta";
562 if ($dbmeta ne $meta) {
563 # changed, we may need to process
564
565 my @data;
566 my $md5;
567
568 for (0 .. $#$src) {
569 0 <= aio_load $src->[$_], $data[$_]
570 or Carp::croak "$src->[$_]: $!";
571 }
572
573 # if processing is expensive, check
574 # checksum first
575 if (1) {
576 $md5 =
577 join "\x00",
578 $processversion,
579 map {
580 Coro::cede;
581 ($src->[$_], Digest::MD5::md5_hex $data[$_])
582 } 0.. $#$src;
583
584
585 my $dbmd5 = db_get cache => "$id/md5";
586 if ($dbmd5 eq $md5) {
587 db_put cache => "$id/meta", $meta;
588
589 return db_get cache => "$id/data";
590 }
591 }
592
593 my $t1 = Time::HiRes::time;
594 my $data = $process->(\@data);
595 my $t2 = Time::HiRes::time;
596
597 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
598
599 db_put cache => "$id/data", $data;
600 db_put cache => "$id/md5" , $md5;
601 db_put cache => "$id/meta", $meta;
602
603 return $data;
604 }
605
606 db_get cache => "$id/data"
607}
608
609=item cf::datalog type => key => value, ...
610
611Log a datalog packet of the given type with the given key-value pairs.
612
613=cut
614
615sub datalog($@) {
616 my ($type, %kv) = @_;
617 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341} 618}
342 619
343=back 620=back
344 621
345=cut 622=cut
346
347#############################################################################
348
349package cf::path;
350
351sub new {
352 my ($class, $path, $base) = @_;
353
354 $path = $path->as_string if ref $path;
355
356 my $self = bless { }, $class;
357
358 # {... are special paths that are not touched
359 # ?xxx/... are special absolute paths
360 # ?random/... random maps
361 # /! non-realised random map exit
362 # /... normal maps
363 # ~/... per-player maps without a specific player (DO NOT USE)
364 # ~user/... per-player map of a specific user
365
366 if ($path =~ /^{/) {
367 # fine as it is
368 } elsif ($path =~ s{^\?random/}{}) {
369 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370 $self->{random} = cf::from_json $data;
371 } else {
372 if ($path =~ s{^~([^/]+)?}{}) {
373 $self->{user_rel} = 1;
374
375 if (defined $1) {
376 $self->{user} = $1;
377 } elsif ($base =~ m{^~([^/]+)/}) {
378 $self->{user} = $1;
379 } else {
380 warn "cannot resolve user-relative path without user <$path,$base>\n";
381 }
382 } elsif ($path =~ /^\//) {
383 # already absolute
384 } else {
385 $base =~ s{[^/]+/?$}{};
386 return $class->new ("$base/$path");
387 }
388
389 for ($path) {
390 redo if s{/\.?/}{/};
391 redo if s{/[^/]+/\.\./}{/};
392 }
393 }
394
395 $self->{path} = $path;
396
397 $self
398}
399
400# the name / primary key / in-game path
401sub as_string {
402 my ($self) = @_;
403
404 $self->{user_rel} ? "~$self->{user}$self->{path}"
405 : $self->{random} ? "?random/$self->{path}"
406 : $self->{path}
407}
408
409# the displayed name, this is a one way mapping
410sub visible_name {
411 my ($self) = @_;
412
413# if (my $rmp = $self->{random}) {
414# # todo: be more intelligent about this
415# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416# } else {
417 $self->as_string
418# }
419}
420
421# escape the /'s in the path
422sub _escaped_path {
423 # ∕ is U+2215
424 (my $path = $_[0]{path}) =~ s/\//∕/g;
425 $path
426}
427
428# the original (read-only) location
429sub load_path {
430 my ($self) = @_;
431
432 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433}
434
435# the temporary/swap location
436sub save_path {
437 my ($self) = @_;
438
439 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442}
443
444# the unique path, might be eq to save_path
445sub uniq_path {
446 my ($self) = @_;
447
448 $self->{user_rel} || $self->{random}
449 ? undef
450 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451}
452
453# return random map parameters, or undef
454sub random_map_params {
455 my ($self) = @_;
456
457 $self->{random}
458}
459
460# this is somewhat ugly, but style maps do need special treatment
461sub is_style_map {
462 $_[0]{path} =~ m{^/styles/}
463}
464
465package cf;
466 623
467############################################################################# 624#############################################################################
468 625
469=head2 ATTACHABLE OBJECTS 626=head2 ATTACHABLE OBJECTS
470 627
472attach callbacks/event handlers (a collection of which is called an "attachment") 629attach callbacks/event handlers (a collection of which is called an "attachment")
473to it. All such attachable objects support the following methods. 630to it. All such attachable objects support the following methods.
474 631
475In the following description, CLASS can be any of C<global>, C<object> 632In the following description, CLASS can be any of C<global>, C<object>
476C<player>, C<client> or C<map> (i.e. the attachable objects in 633C<player>, C<client> or C<map> (i.e. the attachable objects in
477crossfire+). 634Crossfire TRT).
478 635
479=over 4 636=over 4
480 637
481=item $attachable->attach ($attachment, key => $value...) 638=item $attachable->attach ($attachment, key => $value...)
482 639
596our @CB_TYPE = (); # registry for type (cf-object class) based events 753our @CB_TYPE = (); # registry for type (cf-object class) based events
597our @CB_MAP = (); 754our @CB_MAP = ();
598 755
599my %attachment; 756my %attachment;
600 757
758sub cf::attachable::thawer_merge {
759 # simply override everything except _meta
760 local $_[0]{_meta};
761 %{$_[0]} = %{$_[1]};
762}
763
601sub _attach_cb($$$$) { 764sub _attach_cb($$$$) {
602 my ($registry, $event, $prio, $cb) = @_; 765 my ($registry, $event, $prio, $cb) = @_;
603 766
604 use sort 'stable'; 767 use sort 'stable';
605 768
639 $registry = $CB_TYPE[$object_type] ||= []; 802 $registry = $CB_TYPE[$object_type] ||= [];
640 803
641 } elsif ($type eq "subtype") { 804 } elsif ($type eq "subtype") {
642 defined $object_type or Carp::croak "subtype specified without type"; 805 defined $object_type or Carp::croak "subtype specified without type";
643 my $object_subtype = shift @arg; 806 my $object_subtype = shift @arg;
644 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 807 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645 808
646 } elsif ($type eq "package") { 809 } elsif ($type eq "package") {
647 my $pkg = shift @arg; 810 my $pkg = shift @arg;
648 811
649 while (my ($name, $id) = each %cb_id) { 812 while (my ($name, $id) = each %cb_id) {
678 _attach $registry, $klass, @attach; 841 _attach $registry, $klass, @attach;
679 } 842 }
680 843
681 $obj->{$name} = \%arg; 844 $obj->{$name} = \%arg;
682 } else { 845 } else {
683 warn "object uses attachment '$name' that is not available, postponing.\n"; 846 warn "object uses attachment '$name' which is not available, postponing.\n";
684 } 847 }
685 848
686 $obj->{_attachment}{$name} = undef; 849 $obj->{_attachment}{$name} = undef;
687} 850}
688 851
690 if (ref $_[0]) { 853 if (ref $_[0]) {
691 _object_attach @_; 854 _object_attach @_;
692 } else { 855 } else {
693 _attach shift->_attach_registry, @_; 856 _attach shift->_attach_registry, @_;
694 } 857 }
858 _recalc_want;
695}; 859};
696 860
697# all those should be optimised 861# all those should be optimised
698sub cf::attachable::detach { 862sub cf::attachable::detach {
699 my ($obj, $name) = @_; 863 my ($obj, $name) = @_;
702 delete $obj->{_attachment}{$name}; 866 delete $obj->{_attachment}{$name};
703 reattach ($obj); 867 reattach ($obj);
704 } else { 868 } else {
705 Carp::croak "cannot, currently, detach class attachments"; 869 Carp::croak "cannot, currently, detach class attachments";
706 } 870 }
871 _recalc_want;
707}; 872};
708 873
709sub cf::attachable::attached { 874sub cf::attachable::attached {
710 my ($obj, $name) = @_; 875 my ($obj, $name) = @_;
711 876
726 "; 891 ";
727 die if $@; 892 die if $@;
728} 893}
729 894
730our $override; 895our $override;
731our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 896our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732 897
733sub override { 898sub override {
734 $override = 1; 899 $override = 1;
735 @invoke_results = (); 900 @INVOKE_RESULTS = (@_);
736} 901}
737 902
738sub do_invoke { 903sub do_invoke {
739 my $event = shift; 904 my $event = shift;
740 my $callbacks = shift; 905 my $callbacks = shift;
741 906
742 @invoke_results = (); 907 @INVOKE_RESULTS = ();
743 908
744 local $override; 909 local $override;
745 910
746 for (@$callbacks) { 911 for (@$callbacks) {
747 eval { &{$_->[1]} }; 912 eval { &{$_->[1]} };
764 929
765Generate an object-specific event with the given arguments. 930Generate an object-specific event with the given arguments.
766 931
767This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 932This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768removed in future versions), and there is no public API to access override 933removed in future versions), and there is no public API to access override
769results (if you must, access C<@cf::invoke_results> directly). 934results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770 935
771=back 936=back
772 937
773=cut 938=cut
774 939
775############################################################################# 940#############################################################################
776# object support 941# object support
942#
943
944sub _can_merge {
945 my ($ob1, $ob2) = @_;
946
947 local $Storable::canonical = 1;
948 my $fob1 = Storable::freeze $ob1;
949 my $fob2 = Storable::freeze $ob2;
950
951 $fob1 eq $fob2
952}
777 953
778sub reattach { 954sub reattach {
779 # basically do the same as instantiate, without calling instantiate 955 # basically do the same as instantiate, without calling instantiate
780 my ($obj) = @_; 956 my ($obj) = @_;
957
958 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781 959
782 my $registry = $obj->registry; 960 my $registry = $obj->registry;
783 961
784 @$registry = (); 962 @$registry = ();
785 963
832 $filename, length $$rdata, scalar @$objs; 1010 $filename, length $$rdata, scalar @$objs;
833 1011
834 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 1012 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835 chmod SAVE_MODE, $fh; 1013 chmod SAVE_MODE, $fh;
836 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 1014 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837 aio_fsync $fh; 1015 aio_fsync $fh if $cf::USE_FSYNC;
838 close $fh; 1016 close $fh;
839 1017
840 if (@$objs) { 1018 if (@$objs) {
841 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 1019 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842 chmod SAVE_MODE, $fh; 1020 chmod SAVE_MODE, $fh;
843 my $data = Storable::nfreeze { version => 1, objs => $objs }; 1021 my $data = Storable::nfreeze { version => 1, objs => $objs };
844 aio_write $fh, 0, (length $data), $data, 0; 1022 aio_write $fh, 0, (length $data), $data, 0;
845 aio_fsync $fh; 1023 aio_fsync $fh if $cf::USE_FSYNC;
846 close $fh; 1024 close $fh;
847 aio_rename "$filename.pst~", "$filename.pst"; 1025 aio_rename "$filename.pst~", "$filename.pst";
848 } 1026 }
849 } else { 1027 } else {
850 aio_unlink "$filename.pst"; 1028 aio_unlink "$filename.pst";
882 or return; 1060 or return;
883 $av = eval { (Storable::thaw $av)->{objs} }; 1061 $av = eval { (Storable::thaw $av)->{objs} };
884 } 1062 }
885 1063
886 warn sprintf "loading %s (%d)\n", 1064 warn sprintf "loading %s (%d)\n",
887 $filename, length $data, scalar @{$av || []};#d# 1065 $filename, length $data, scalar @{$av || []};
888 return ($data, $av); 1066 return ($data, $av);
889} 1067}
1068
1069=head2 COMMAND CALLBACKS
1070
1071=over 4
1072
1073=cut
890 1074
891############################################################################# 1075#############################################################################
892# command handling &c 1076# command handling &c
893 1077
894=item cf::register_command $name => \&callback($ob,$args); 1078=item cf::register_command $name => \&callback($ob,$args);
907 push @{ $COMMAND{$name} }, [$caller, $cb]; 1091 push @{ $COMMAND{$name} }, [$caller, $cb];
908} 1092}
909 1093
910=item cf::register_extcmd $name => \&callback($pl,$packet); 1094=item cf::register_extcmd $name => \&callback($pl,$packet);
911 1095
912Register a callbackf ro execution when the client sends an extcmd packet. 1096Register a callback for execution when the client sends an (synchronous)
1097extcmd packet. Ext commands will be processed in the order they are
1098received by the server, like other user commands. The first argument is
1099the logged-in player. Ext commands can only be processed after a player
1100has logged in successfully.
913 1101
914If the callback returns something, it is sent back as if reply was being 1102If the callback returns something, it is sent back as if reply was being
915called. 1103called.
916 1104
1105=item cf::register_exticmd $name => \&callback($ns,$packet);
1106
1107Register a callback for execution when the client sends an (asynchronous)
1108exticmd packet. Exti commands are processed by the server as soon as they
1109are received, i.e. out of order w.r.t. other commands. The first argument
1110is a client socket. Exti commands can be received anytime, even before
1111log-in.
1112
1113If the callback returns something, it is sent back as if reply was being
1114called.
1115
917=cut 1116=cut
918 1117
919sub register_extcmd { 1118sub register_extcmd {
920 my ($name, $cb) = @_; 1119 my ($name, $cb) = @_;
921 1120
922 my $caller = caller;
923 #warn "registering extcmd '$name' to '$caller'";
924
925 $EXTCMD{$name} = [$cb, $caller]; 1121 $EXTCMD{$name} = $cb;
1122}
1123
1124sub register_exticmd {
1125 my ($name, $cb) = @_;
1126
1127 $EXTICMD{$name} = $cb;
926} 1128}
927 1129
928cf::player->attach ( 1130cf::player->attach (
929 on_command => sub { 1131 on_command => sub {
930 my ($pl, $name, $params) = @_; 1132 my ($pl, $name, $params) = @_;
939 cf::override; 1141 cf::override;
940 }, 1142 },
941 on_extcmd => sub { 1143 on_extcmd => sub {
942 my ($pl, $buf) = @_; 1144 my ($pl, $buf) = @_;
943 1145
944 my $msg = eval { from_json $buf }; 1146 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945 1147
946 if (ref $msg) { 1148 if (ref $msg) {
1149 my ($type, $reply, @payload) =
1150 "ARRAY" eq ref $msg
1151 ? @$msg
1152 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1153
1154 my @reply;
1155
947 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1156 if (my $cb = $EXTCMD{$type}) {
948 if (my %reply = $cb->[0]->($pl, $msg)) { 1157 @reply = $cb->($pl, @payload);
949 $pl->ext_reply ($msg->{msgid}, %reply);
950 }
951 } 1158 }
1159
1160 $pl->ext_reply ($reply, @reply)
1161 if $reply;
1162
952 } else { 1163 } else {
953 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1164 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954 } 1165 }
955 1166
956 cf::override; 1167 cf::override;
957 }, 1168 },
958); 1169);
959 1170
960sub register {
961 my ($base, $pkg) = @_;
962
963 #TODO
964}
965
966sub load_extension { 1171sub load_extensions {
1172 cf::sync_job {
1173 my %todo;
1174
1175 for my $path (<$LIBDIR/*.ext>) {
1176 next unless -r $path;
1177
1178 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1179 my $base = $1;
1180 my $pkg = $1;
1181 $pkg =~ s/[^[:word:]]/_/g;
1182 $pkg = "ext::$pkg";
1183
1184 open my $fh, "<:utf8", $path
1185 or die "$path: $!";
1186
1187 my $source = do { local $/; <$fh> };
1188
1189 my %ext = (
1190 path => $path,
1191 base => $base,
1192 pkg => $pkg,
1193 );
1194
1195 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1196 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1197
1198 $ext{source} =
1199 "package $pkg; use strict; use utf8;\n"
1200 . "#line 1 \"$path\"\n{\n"
1201 . $source
1202 . "\n};\n1";
1203
1204 $todo{$base} = \%ext;
1205 }
1206
1207 my %done;
1208 while (%todo) {
1209 my $progress;
1210
1211 while (my ($k, $v) = each %todo) {
1212 for (split /,\s*/, $v->{meta}{depends}) {
1213 goto skip
1214 unless exists $done{$_};
1215 }
1216
1217 warn "... loading '$k' into '$v->{pkg}'\n";
1218
1219 unless (eval $v->{source}) {
1220 my $msg = $@ ? "$v->{path}: $@\n"
1221 : "$v->{base}: extension inactive.\n";
1222
1223 if (exists $v->{meta}{mandatory}) {
1224 warn $msg;
1225 warn "mandatory extension failed to load, exiting.\n";
1226 exit 1;
1227 }
1228
1229 warn $msg;
1230 }
1231
1232 $done{$k} = delete $todo{$k};
1233 push @EXTS, $v->{pkg};
1234 $progress = 1;
1235 }
1236
1237 skip:
1238 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1239 unless $progress;
1240 }
1241 };
1242}
1243
1244#############################################################################
1245
1246=back
1247
1248=head2 CORE EXTENSIONS
1249
1250Functions and methods that extend core crossfire objects.
1251
1252=cut
1253
1254package cf::player;
1255
1256use Coro::AIO;
1257
1258=head3 cf::player
1259
1260=over 4
1261
1262=item cf::player::find $login
1263
1264Returns the given player object, loading it if necessary (might block).
1265
1266=cut
1267
1268sub playerdir($) {
1269 "$PLAYERDIR/"
1270 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1271}
1272
1273sub path($) {
1274 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1275
1276 (playerdir $login) . "/playerdata"
1277}
1278
1279sub find_active($) {
1280 $cf::PLAYER{$_[0]}
1281 and $cf::PLAYER{$_[0]}->active
1282 and $cf::PLAYER{$_[0]}
1283}
1284
1285sub exists($) {
1286 my ($login) = @_;
1287
1288 $cf::PLAYER{$login}
1289 or cf::sync_job { !aio_stat path $login }
1290}
1291
1292sub find($) {
1293 return $cf::PLAYER{$_[0]} || do {
1294 my $login = $_[0];
1295
1296 my $guard = cf::lock_acquire "user_find:$login";
1297
1298 $cf::PLAYER{$_[0]} || do {
1299 # rename old playerfiles to new ones
1300 #TODO: remove when no longer required
1301 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1302 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1303 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1304 aio_unlink +(playerdir $login) . "/$login.pl";
1305
1306 my $pl = load_pl path $login
1307 or return;
1308 $cf::PLAYER{$login} = $pl
1309 }
1310 }
1311}
1312
1313sub save($) {
1314 my ($pl) = @_;
1315
1316 return if $pl->{deny_save};
1317
1318 my $path = path $pl;
1319 my $guard = cf::lock_acquire "user_save:$path";
1320
1321 return if $pl->{deny_save};
1322
1323 aio_mkdir playerdir $pl, 0770;
1324 $pl->{last_save} = $cf::RUNTIME;
1325
1326 $pl->save_pl ($path);
1327 Coro::cede;
1328}
1329
1330sub new($) {
1331 my ($login) = @_;
1332
1333 my $self = create;
1334
1335 $self->ob->name ($login);
1336 $self->{deny_save} = 1;
1337
1338 $cf::PLAYER{$login} = $self;
1339
1340 $self
1341}
1342
1343=item $player->send_msg ($channel, $msg, $color, [extra...])
1344
1345=cut
1346
1347sub send_msg {
1348 my $ns = shift->ns
1349 or return;
1350 $ns->send_msg (@_);
1351}
1352
1353=item $pl->quit_character
1354
1355Nukes the player without looking back. If logged in, the connection will
1356be destroyed. May block for a long time.
1357
1358=cut
1359
1360sub quit_character {
1361 my ($pl) = @_;
1362
1363 my $name = $pl->ob->name;
1364
1365 $pl->{deny_save} = 1;
1366 $pl->password ("*"); # this should lock out the player until we nuked the dir
1367
1368 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1369 $pl->deactivate;
1370 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1371 $pl->ns->destroy if $pl->ns;
1372
1373 my $path = playerdir $pl;
1374 my $temp = "$path~$cf::RUNTIME~deleting~";
1375 aio_rename $path, $temp;
1376 delete $cf::PLAYER{$pl->ob->name};
1377 $pl->destroy;
1378
1379 my $prefix = qr<^~\Q$name\E/>;
1380
1381 # nuke player maps
1382 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1383
1384 IO::AIO::aio_rmtree $temp;
1385}
1386
1387=item $pl->kick
1388
1389Kicks a player out of the game. This destroys the connection.
1390
1391=cut
1392
1393sub kick {
1394 my ($pl, $kicker) = @_;
1395
1396 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1397 $pl->killer ("kicked");
1398 $pl->ns->destroy;
1399}
1400
1401=item cf::player::list_logins
1402
1403Returns am arrayref of all valid playernames in the system, can take a
1404while and may block, so not sync_job-capable, ever.
1405
1406=cut
1407
1408sub list_logins {
1409 my $dirs = aio_readdir $PLAYERDIR
1410 or return [];
1411
1412 my @logins;
1413
1414 for my $login (@$dirs) {
1415 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1416 aio_read $fh, 0, 512, my $buf, 0 or next;
1417 $buf !~ /^password -------------$/m or next; # official not-valid tag
1418
1419 utf8::decode $login;
1420 push @logins, $login;
1421 }
1422
1423 \@logins
1424}
1425
1426=item $player->maps
1427
1428Returns an arrayref of map paths that are private for this
1429player. May block.
1430
1431=cut
1432
1433sub maps($) {
1434 my ($pl) = @_;
1435
1436 $pl = ref $pl ? $pl->ob->name : $pl;
1437
1438 my $files = aio_readdir playerdir $pl
1439 or return;
1440
1441 my @paths;
1442
1443 for (@$files) {
1444 utf8::decode $_;
1445 next if /\.(?:pl|pst)$/;
1446 next unless /^$PATH_SEP/o;
1447
1448 push @paths, cf::map::normalise "~$pl/$_";
1449 }
1450
1451 \@paths
1452}
1453
1454=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
1455
1456Expand crossfire pod fragments into protocol xml.
1457
1458=cut
1459
1460sub expand_cfpod {
1461 ((my $self), (local $_)) = @_;
1462
1463 # escape & and <
1464 s/&/&amp;/g;
1465 s/(?<![BIUGH])</&lt;/g;
1466
1467 # this is buggy, it needs to properly take care of nested <'s
1468
1469 1 while
1470 # replace B<>, I<>, U<> etc.
1471 s/B<([^\>]*)>/<b>$1<\/b>/
1472 || s/I<([^\>]*)>/<i>$1<\/i>/
1473 || s/U<([^\>]*)>/<u>$1<\/u>/
1474 # replace G<male|female> tags
1475 || s{G<([^>|]*)\|([^>]*)>}{
1476 $self->gender ? $2 : $1
1477 }ge
1478 # replace H<hint text>
1479 || s{H<([^\>]*)>}
1480 {
1481 ("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
1482 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1483 "")
1484 [$self->{hintmode}]
1485 }ge;
1486
1487 # create single paragraphs (very hackish)
1488 s/(?<=\S)\n(?=\w)/ /g;
1489
1490 # compress some whitespace
1491 s/\s+\n/\n/g; # ws line-ends
1492 s/\n\n+/\n/g; # double lines
1493 s/^\n+//; # beginning lines
1494 s/\n+$//; # ending lines
1495
1496 $_
1497}
1498
1499sub hintmode {
1500 $_[0]{hintmode} = $_[1] if @_ > 1;
1501 $_[0]{hintmode}
1502}
1503
1504=item $player->ext_reply ($msgid, @msg)
1505
1506Sends an ext reply to the player.
1507
1508=cut
1509
1510sub ext_reply($$@) {
1511 my ($self, $id, @msg) = @_;
1512
1513 $self->ns->ext_reply ($id, @msg)
1514}
1515
1516=item $player->ext_msg ($type, @msg)
1517
1518Sends an ext event to the client.
1519
1520=cut
1521
1522sub ext_msg($$@) {
1523 my ($self, $type, @msg) = @_;
1524
1525 $self->ns->ext_msg ($type, @msg);
1526}
1527
1528=head3 cf::region
1529
1530=over 4
1531
1532=cut
1533
1534package cf::region;
1535
1536=item cf::region::find_by_path $path
1537
1538Tries to decuce the likely region for a map knowing only its path.
1539
1540=cut
1541
1542sub find_by_path($) {
967 my ($path) = @_; 1543 my ($path) = @_;
968 1544
969 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1545 my ($match, $specificity);
970 my $base = $1;
971 my $pkg = $1;
972 $pkg =~ s/[^[:word:]]/_/g;
973 $pkg = "ext::$pkg";
974 1546
975 warn "loading '$path' into '$pkg'\n"; 1547 for my $region (list) {
976 1548 if ($region->{match} && $path =~ $region->{match}) {
977 open my $fh, "<:utf8", $path 1549 ($match, $specificity) = ($region, $region->specificity)
978 or die "$path: $!"; 1550 if $region->specificity > $specificity;
979 1551 }
980 my $source =
981 "package $pkg; use strict; use utf8;\n"
982 . "#line 1 \"$path\"\n{\n"
983 . (do { local $/; <$fh> })
984 . "\n};\n1";
985
986 eval $source
987 or die $@ ? "$path: $@\n"
988 : "extension disabled.\n";
989
990 push @exts, $pkg;
991 $ext_pkg{$base} = $pkg;
992
993# no strict 'refs';
994# @{"$pkg\::ISA"} = ext::;
995
996 register $base, $pkg;
997}
998
999sub unload_extension {
1000 my ($pkg) = @_;
1001
1002 warn "removing extension $pkg\n";
1003
1004 # remove hooks
1005 #TODO
1006# for my $idx (0 .. $#PLUGIN_EVENT) {
1007# delete $hook[$idx]{$pkg};
1008# } 1552 }
1009 1553
1010 # remove commands 1554 $match
1011 for my $name (keys %COMMAND) {
1012 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014 if (@cb) {
1015 $COMMAND{$name} = \@cb;
1016 } else {
1017 delete $COMMAND{$name};
1018 }
1019 }
1020
1021 # remove extcmds
1022 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023 delete $EXTCMD{$name};
1024 }
1025
1026 if (my $cb = $pkg->can ("unload")) {
1027 eval {
1028 $cb->($pkg);
1029 1
1030 } or warn "$pkg unloaded, but with errors: $@";
1031 }
1032
1033 Symbol::delete_package $pkg;
1034}
1035
1036sub load_extensions {
1037 for my $ext (<$LIBDIR/*.ext>) {
1038 next unless -r $ext;
1039 eval {
1040 load_extension $ext;
1041 1
1042 } or warn "$ext not loaded: $@";
1043 }
1044}
1045
1046#############################################################################
1047# load/save/clean perl data associated with a map
1048
1049*cf::mapsupport::on_clean = sub {
1050 my ($map) = @_;
1051
1052 my $path = $map->tmpname;
1053 defined $path or return;
1054
1055 unlink "$path.pst";
1056};
1057
1058cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060#############################################################################
1061# load/save perl data associated with player->ob objects
1062
1063sub all_objects(@) {
1064 @_, map all_objects ($_->inv), @_
1065}
1066
1067# TODO: compatibility cruft, remove when no longer needed
1068cf::player->attach (
1069 on_load => sub {
1070 my ($pl, $path) = @_;
1071
1072 for my $o (all_objects $pl->ob) {
1073 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074 $o->set_ob_key_value ("_perl_data");
1075
1076 %$o = %{ Storable::thaw pack "H*", $value };
1077 }
1078 }
1079 },
1080);
1081
1082#############################################################################
1083
1084=head2 CORE EXTENSIONS
1085
1086Functions and methods that extend core crossfire objects.
1087
1088=head3 cf::player
1089
1090=over 4
1091
1092=item cf::player::exists $login
1093
1094Returns true when the given account exists.
1095
1096=cut
1097
1098sub cf::player::exists($) {
1099 cf::player::find $_[0]
1100 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101}
1102
1103=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105Sends an ext reply to the player.
1106
1107=cut
1108
1109sub cf::player::ext_reply($$$%) {
1110 my ($self, $id, %msg) = @_;
1111
1112 $msg{msgid} = $id;
1113
1114 $self->send ("ext " . to_json \%msg);
1115} 1555}
1116 1556
1117=back 1557=back
1118
1119 1558
1120=head3 cf::map 1559=head3 cf::map
1121 1560
1122=over 4 1561=over 4
1123 1562
1126package cf::map; 1565package cf::map;
1127 1566
1128use Fcntl; 1567use Fcntl;
1129use Coro::AIO; 1568use Coro::AIO;
1130 1569
1570use overload
1571 '""' => \&as_string,
1572 fallback => 1;
1573
1131our $MAX_RESET = 7200; 1574our $MAX_RESET = 3600;
1132our $DEFAULT_RESET = 3600; 1575our $DEFAULT_RESET = 3000;
1133 1576
1134sub generate_random_map { 1577sub generate_random_map {
1135 my ($path, $rmp) = @_; 1578 my ($self, $rmp) = @_;
1136
1137 # mit "rum" bekleckern, nicht 1579 # mit "rum" bekleckern, nicht
1138 cf::map::_create_random_map 1580 $self->_create_random_map (
1139 $path,
1140 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1581 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1582 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1583 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143 $rmp->{exit_on_final_map}, 1584 $rmp->{exit_on_final_map},
1144 $rmp->{xsize}, $rmp->{ysize}, 1585 $rmp->{xsize}, $rmp->{ysize},
1145 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1586 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1587 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1588 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1589 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1590 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150 (cf::region::find $rmp->{region}) 1591 (cf::region::find $rmp->{region}), $rmp->{custom}
1592 )
1593}
1594
1595=item cf::map->register ($regex, $prio)
1596
1597Register a handler for the map path matching the given regex at the
1598givne priority (higher is better, built-in handlers have priority 0, the
1599default).
1600
1601=cut
1602
1603sub register {
1604 my (undef, $regex, $prio) = @_;
1605 my $pkg = caller;
1606
1607 no strict;
1608 push @{"$pkg\::ISA"}, __PACKAGE__;
1609
1610 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1611}
1612
1613# also paths starting with '/'
1614$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1615
1616sub thawer_merge {
1617 my ($self, $merge) = @_;
1618
1619 # we have to keep some variables in memory intact
1620 local $self->{path};
1621 local $self->{load_path};
1622
1623 $self->SUPER::thawer_merge ($merge);
1624}
1625
1626sub normalise {
1627 my ($path, $base) = @_;
1628
1629 $path = "$path"; # make sure its a string
1630
1631 $path =~ s/\.map$//;
1632
1633 # map plan:
1634 #
1635 # /! non-realised random map exit (special hack!)
1636 # {... are special paths that are not being touched
1637 # ?xxx/... are special absolute paths
1638 # ?random/... random maps
1639 # /... normal maps
1640 # ~user/... per-player map of a specific user
1641
1642 $path =~ s/$PATH_SEP/\//go;
1643
1644 # treat it as relative path if it starts with
1645 # something that looks reasonable
1646 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1647 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1648
1649 $base =~ s{[^/]+/?$}{};
1650 $path = "$base/$path";
1651 }
1652
1653 for ($path) {
1654 redo if s{//}{/};
1655 redo if s{/\.?/}{/};
1656 redo if s{/[^/]+/\.\./}{/};
1657 }
1658
1659 $path
1660}
1661
1662sub new_from_path {
1663 my (undef, $path, $base) = @_;
1664
1665 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1666
1667 $path = normalise $path, $base;
1668
1669 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1670 if ($path =~ $EXT_MAP{$pkg}[1]) {
1671 my $self = bless cf::map::new, $pkg;
1672 $self->{path} = $path; $self->path ($path);
1673 $self->init; # pass $1 etc.
1674 return $self;
1675 }
1676 }
1677
1678 Carp::cluck "unable to resolve path '$path' (base '$base').";
1679 ()
1680}
1681
1682sub init {
1683 my ($self) = @_;
1684
1685 $self
1686}
1687
1688sub as_string {
1689 my ($self) = @_;
1690
1691 "$self->{path}"
1692}
1693
1694# the displayed name, this is a one way mapping
1695sub visible_name {
1696 &as_string
1697}
1698
1699# the original (read-only) location
1700sub load_path {
1701 my ($self) = @_;
1702
1703 "$MAPDIR/$self->{path}.map"
1704}
1705
1706# the temporary/swap location
1707sub save_path {
1708 my ($self) = @_;
1709
1710 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1711 "$TMPDIR/$path.map"
1712}
1713
1714# the unique path, undef == no special unique path
1715sub uniq_path {
1716 my ($self) = @_;
1717
1718 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1719 "$UNIQUEDIR/$path"
1151} 1720}
1152 1721
1153# and all this just because we cannot iterate over 1722# and all this just because we cannot iterate over
1154# all maps in C++... 1723# all maps in C++...
1155sub change_all_map_light { 1724sub change_all_map_light {
1157 1726
1158 $_->change_map_light ($change) 1727 $_->change_map_light ($change)
1159 for grep $_->outdoor, values %cf::MAP; 1728 for grep $_->outdoor, values %cf::MAP;
1160} 1729}
1161 1730
1731sub decay_objects {
1732 my ($self) = @_;
1733
1734 return if $self->{deny_reset};
1735
1736 $self->do_decay_objects;
1737}
1738
1739sub unlink_save {
1740 my ($self) = @_;
1741
1742 utf8::encode (my $save = $self->save_path);
1743 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1744 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1745}
1746
1162sub try_load_header($) { 1747sub load_header_from($) {
1163 my ($path) = @_; 1748 my ($self, $path) = @_;
1164 1749
1165 utf8::encode $path; 1750 utf8::encode $path;
1166 aio_open $path, O_RDONLY, 0 1751 #aio_open $path, O_RDONLY, 0
1752 # or return;
1753
1754 $self->_load_header ($path)
1167 or return; 1755 or return;
1168 1756
1169 my $map = cf::map::new 1757 $self->{load_path} = $path;
1758
1759 1
1760}
1761
1762sub load_header_orig {
1763 my ($self) = @_;
1764
1765 $self->load_header_from ($self->load_path)
1766}
1767
1768sub load_header_temp {
1769 my ($self) = @_;
1770
1771 $self->load_header_from ($self->save_path)
1772}
1773
1774sub prepare_temp {
1775 my ($self) = @_;
1776
1777 $self->last_access ((delete $self->{last_access})
1778 || $cf::RUNTIME); #d#
1779 # safety
1780 $self->{instantiate_time} = $cf::RUNTIME
1781 if $self->{instantiate_time} > $cf::RUNTIME;
1782}
1783
1784sub prepare_orig {
1785 my ($self) = @_;
1786
1787 $self->{load_original} = 1;
1788 $self->{instantiate_time} = $cf::RUNTIME;
1789 $self->last_access ($cf::RUNTIME);
1790 $self->instantiate;
1791}
1792
1793sub load_header {
1794 my ($self) = @_;
1795
1796 if ($self->load_header_temp) {
1797 $self->prepare_temp;
1798 } else {
1799 $self->load_header_orig
1170 or return; 1800 or return;
1801 $self->prepare_orig;
1802 }
1171 1803
1172 $map->load_header ($path) 1804 $self->{deny_reset} = 1
1173 or return; 1805 if $self->no_reset;
1174 1806
1175 $map->{load_path} = $path; 1807 $self->default_region (cf::region::find_by_path $self->{path})
1808 unless $self->default_region;
1176 1809
1177 $map 1810 1
1178} 1811}
1179 1812
1813sub find;
1180sub find_map { 1814sub find {
1181 my ($path, $origin) = @_; 1815 my ($path, $origin) = @_;
1182 1816
1183 #warn "find_map<$path,$origin>\n";#d#
1184
1185 $path = new cf::path $path, $origin && $origin->path; 1817 $path = normalise $path, $origin && $origin->path;
1186 my $key = $path->as_string;
1187 1818
1188 cf::lock_wait "map_find:$key"; 1819 cf::lock_wait "map_find:$path";
1189 1820
1190 $cf::MAP{$key} || do { 1821 $cf::MAP{$path} || do {
1191 my $guard = cf::lock_acquire "map_find:$key"; 1822 my $guard = cf::lock_acquire "map_find:$path";
1192 1823 my $map = new_from_path cf::map $path
1193 # do it the slow way
1194 my $map = try_load_header $path->save_path;
1195
1196 if ($map) {
1197 # safety
1198 $map->{instantiate_time} = $cf::RUNTIME
1199 if $map->{instantiate_time} > $cf::RUNTIME;
1200 } else {
1201 if (my $rmp = $path->random_map_params) {
1202 $map = generate_random_map $key, $rmp;
1203 } else {
1204 $map = try_load_header $path->load_path;
1205 }
1206
1207 $map or return; 1824 or return;
1208 1825
1209 $map->{load_original} = 1;
1210 $map->{instantiate_time} = $cf::RUNTIME;
1211 $map->instantiate;
1212
1213 # per-player maps become, after loading, normal maps
1214 $map->per_player (0) if $path->{user_rel};
1215 }
1216
1217 $map->path ($key);
1218 $map->{path} = $path;
1219 $map->{last_save} = $cf::RUNTIME; 1826 $map->{last_save} = $cf::RUNTIME;
1220 $map->last_access ($cf::RUNTIME);
1221 1827
1222 if ($map->should_reset) { 1828 $map->load_header
1829 or return;
1830
1831 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1832 # doing this can freeze the server in a sync job, obviously
1833 #$cf::WAIT_FOR_TICK->wait;
1223 $map->reset; 1834 $map->reset;
1224 undef $guard; 1835 undef $guard;
1225 $map = cf::map::find_map ($path) 1836 return find $path;
1226 or return;
1227 } 1837 }
1228 1838
1229 $cf::MAP{$key} = $map 1839 $cf::MAP{$path} = $map
1230 } 1840 }
1231} 1841}
1842
1843sub pre_load { }
1844sub post_load { }
1232 1845
1233sub load { 1846sub load {
1234 my ($self) = @_; 1847 my ($self) = @_;
1235 1848
1849 local $self->{deny_reset} = 1; # loading can take a long time
1850
1236 my $path = $self->{path}; 1851 my $path = $self->{path};
1852
1853 {
1237 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 1854 my $guard = cf::lock_acquire "map_load:$path";
1238 1855
1239 return if $self->in_memory != cf::MAP_SWAPPED; 1856 return if $self->in_memory != cf::MAP_SWAPPED;
1240 1857
1241 $self->in_memory (cf::MAP_LOADING); 1858 $self->in_memory (cf::MAP_LOADING);
1242 1859
1243 $self->alloc; 1860 $self->alloc;
1861
1862 $self->pre_load;
1863 Coro::cede;
1864
1244 $self->load_objects ($self->{load_path}, 1) 1865 $self->_load_objects ($self->{load_path}, 1)
1245 or return; 1866 or return;
1246 1867
1247 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1868 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1248 if delete $self->{load_original}; 1869 if delete $self->{load_original};
1249 1870
1250 if (my $uniq = $path->uniq_path) { 1871 if (my $uniq = $self->uniq_path) {
1251 utf8::encode $uniq; 1872 utf8::encode $uniq;
1252 if (aio_open $uniq, O_RDONLY, 0) { 1873 if (aio_open $uniq, O_RDONLY, 0) {
1253 $self->clear_unique_items; 1874 $self->clear_unique_items;
1254 $self->load_objects ($uniq, 0); 1875 $self->_load_objects ($uniq, 0);
1255 } 1876 }
1256 } 1877 }
1257 1878
1879 Coro::cede;
1258 # now do the right thing for maps 1880 # now do the right thing for maps
1259 $self->link_multipart_objects; 1881 $self->link_multipart_objects;
1260
1261 if ($self->{path}->is_style_map) {
1262 $self->{deny_save} = 1;
1263 $self->{deny_reset} = 1;
1264 } else {
1265 $self->fix_auto_apply;
1266 $self->decay_objects;
1267 $self->update_buttons;
1268 $self->set_darkness_map;
1269 $self->difficulty ($self->estimate_difficulty) 1882 $self->difficulty ($self->estimate_difficulty)
1270 unless $self->difficulty; 1883 unless $self->difficulty;
1884 Coro::cede;
1885
1886 unless ($self->{deny_activate}) {
1887 $self->decay_objects;
1888 $self->fix_auto_apply;
1889 $self->update_buttons;
1890 Coro::cede;
1891 $self->set_darkness_map;
1892 Coro::cede;
1271 $self->activate; 1893 $self->activate;
1272 } 1894 }
1273 1895
1896 $self->{last_save} = $cf::RUNTIME;
1897 $self->last_access ($cf::RUNTIME);
1898
1274 $self->in_memory (cf::MAP_IN_MEMORY); 1899 $self->in_memory (cf::MAP_IN_MEMORY);
1275} 1900 }
1276 1901
1277sub load_map_sync { 1902 $self->post_load;
1903}
1904
1905sub customise_for {
1906 my ($self, $ob) = @_;
1907
1908 return find "~" . $ob->name . "/" . $self->{path}
1909 if $self->per_player;
1910
1911# return find "?party/" . $ob->name . "/" . $self->{path}
1912# if $self->per_party;
1913
1914 $self
1915}
1916
1917# find and load all maps in the 3x3 area around a map
1918sub load_neighbours {
1919 my ($map) = @_;
1920
1921 my @neigh; # diagonal neighbours
1922
1923 for (0 .. 3) {
1924 my $neigh = $map->tile_path ($_)
1925 or next;
1926 $neigh = find $neigh, $map
1927 or next;
1928 $neigh->load;
1929
1930 push @neigh,
1931 [$neigh->tile_path (($_ + 3) % 4), $neigh],
1932 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1933 }
1934
1935 for (grep defined $_->[0], @neigh) {
1936 my ($path, $origin) = @$_;
1937 my $neigh = find $path, $origin
1938 or next;
1939 $neigh->load;
1940 }
1941}
1942
1943sub find_sync {
1278 my ($path, $origin) = @_; 1944 my ($path, $origin) = @_;
1279 1945
1280 #warn "load_map_sync<$path, $origin>\n";#d# 1946 cf::sync_job { find $path, $origin }
1947}
1281 1948
1282 cf::sync_job { 1949sub do_load_sync {
1283 my $map = cf::map::find_map $path, $origin 1950 my ($map) = @_;
1284 or return; 1951
1285 $map->load; 1952 cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1286 $map 1953 if $Coro::current == $Coro::main;
1954
1955 cf::sync_job { $map->load };
1956}
1957
1958our %MAP_PREFETCH;
1959our $MAP_PREFETCHER = undef;
1960
1961sub find_async {
1962 my ($path, $origin, $load) = @_;
1963
1964 $path = normalise $path, $origin && $origin->{path};
1965
1966 if (my $map = $cf::MAP{$path}) {
1967 return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1968 }
1969
1970 $MAP_PREFETCH{$path} |= $load;
1971
1972 $MAP_PREFETCHER ||= cf::async {
1973 while (%MAP_PREFETCH) {
1974 while (my ($k, $v) = each %MAP_PREFETCH) {
1975 if (my $map = find $k) {
1976 $map->load if $v;
1977 }
1978
1979 delete $MAP_PREFETCH{$k};
1980 }
1981 }
1982 undef $MAP_PREFETCHER;
1287 } 1983 };
1984 $MAP_PREFETCHER->prio (6);
1985
1986 ()
1288} 1987}
1289 1988
1290sub save { 1989sub save {
1291 my ($self) = @_; 1990 my ($self) = @_;
1292 1991
1992 my $lock = cf::lock_acquire "map_data:" . $self->path;
1993
1293 $self->{last_save} = $cf::RUNTIME; 1994 $self->{last_save} = $cf::RUNTIME;
1294 1995
1295 return unless $self->dirty; 1996 return unless $self->dirty;
1296 1997
1297 my $save = $self->{path}->save_path; utf8::encode $save; 1998 my $save = $self->save_path; utf8::encode $save;
1298 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 1999 my $uniq = $self->uniq_path; utf8::encode $uniq;
1299 2000
1300 $self->{load_path} = $save; 2001 $self->{load_path} = $save;
1301 2002
1302 return if $self->{deny_save}; 2003 return if $self->{deny_save};
1303 2004
2005 local $self->{last_access} = $self->last_access;#d#
2006
2007 cf::async {
2008 $_->contr->save for $self->players;
2009 };
2010
1304 if ($uniq) { 2011 if ($uniq) {
1305 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 2012 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306 $self->save_objects ($uniq, cf::IO_UNIQUES); 2013 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1307 } else { 2014 } else {
1308 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 2015 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309 } 2016 }
1310} 2017}
1311 2018
1312sub swap_out { 2019sub swap_out {
1313 my ($self) = @_; 2020 my ($self) = @_;
2021
2022 # save first because save cedes
2023 $self->save;
2024
2025 my $lock = cf::lock_acquire "map_data:" . $self->path;
1314 2026
1315 return if $self->players; 2027 return if $self->players;
1316 return if $self->in_memory != cf::MAP_IN_MEMORY; 2028 return if $self->in_memory != cf::MAP_IN_MEMORY;
1317 return if $self->{deny_save}; 2029 return if $self->{deny_save};
1318 2030
1319 $self->save;
1320 $self->clear; 2031 $self->clear;
1321 $self->in_memory (cf::MAP_SWAPPED); 2032 $self->in_memory (cf::MAP_SWAPPED);
1322} 2033}
1323 2034
1324sub reset_at { 2035sub reset_at {
1325 my ($self) = @_; 2036 my ($self) = @_;
1326 2037
1327 # TODO: safety, remove and allow resettable per-player maps 2038 # TODO: safety, remove and allow resettable per-player maps
1328 return 1e99 if $self->{path}{user_rel};
1329 return 1e99 if $self->{deny_reset}; 2039 return 1e99 if $self->{deny_reset};
1330 2040
1331 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 2041 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 2042 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333 2043
1338 my ($self) = @_; 2048 my ($self) = @_;
1339 2049
1340 $self->reset_at <= $cf::RUNTIME 2050 $self->reset_at <= $cf::RUNTIME
1341} 2051}
1342 2052
1343sub unlink_save {
1344 my ($self) = @_;
1345
1346 utf8::encode (my $save = $self->{path}->save_path);
1347 aioreq_pri 3; IO::AIO::aio_unlink $save;
1348 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349}
1350
1351sub rename {
1352 my ($self, $new_path) = @_;
1353
1354 $self->unlink_save;
1355
1356 delete $cf::MAP{$self->path};
1357 $self->{path} = new cf::path $new_path;
1358 $self->path ($self->{path}->as_string);
1359 $cf::MAP{$self->path} = $self;
1360
1361 $self->save;
1362}
1363
1364sub reset { 2053sub reset {
1365 my ($self) = @_; 2054 my ($self) = @_;
1366 2055
2056 my $lock = cf::lock_acquire "map_data:$self->{path}";
2057
1367 return if $self->players; 2058 return if $self->players;
1368 return if $self->{path}{user_rel};#d#
1369 2059
1370 warn "resetting map ", $self->path;#d# 2060 warn "resetting map ", $self->path;
2061
2062 $self->in_memory (cf::MAP_SWAPPED);
2063
2064 # need to save uniques path
2065 unless ($self->{deny_save}) {
2066 my $uniq = $self->uniq_path; utf8::encode $uniq;
2067
2068 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2069 if $uniq;
2070 }
1371 2071
1372 delete $cf::MAP{$self->path}; 2072 delete $cf::MAP{$self->path};
2073
2074 $self->clear;
1373 2075
1374 $_->clear_links_to ($self) for values %cf::MAP; 2076 $_->clear_links_to ($self) for values %cf::MAP;
1375 2077
1376 $self->unlink_save; 2078 $self->unlink_save;
1377 $self->destroy; 2079 $self->destroy;
1380my $nuke_counter = "aaaa"; 2082my $nuke_counter = "aaaa";
1381 2083
1382sub nuke { 2084sub nuke {
1383 my ($self) = @_; 2085 my ($self) = @_;
1384 2086
2087 delete $cf::MAP{$self->path};
2088
2089 $self->unlink_save;
2090
2091 bless $self, "cf::map";
2092 delete $self->{deny_reset};
1385 $self->{deny_save} = 1; 2093 $self->{deny_save} = 1;
1386 $self->reset_timeout (1); 2094 $self->reset_timeout (1);
1387 $self->rename ("{nuke}/" . ($nuke_counter++)); 2095 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2096
2097 $cf::MAP{$self->path} = $self;
2098
1388 $self->reset; # polite request, might not happen 2099 $self->reset; # polite request, might not happen
1389} 2100}
1390 2101
1391sub customise_for { 2102=item $maps = cf::map::tmp_maps
1392 my ($map, $ob) = @_;
1393 2103
1394 if ($map->per_player) { 2104Returns an arrayref with all map paths of currently instantiated and saved
1395 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 2105maps. May block.
2106
2107=cut
2108
2109sub tmp_maps() {
1396 } 2110 [
1397 2111 map {
1398 $map 2112 utf8::decode $_;
2113 /\.map$/
2114 ? normalise $_
2115 : ()
2116 } @{ aio_readdir $TMPDIR or [] }
2117 ]
1399} 2118}
1400 2119
1401sub emergency_save { 2120=item $maps = cf::map::random_maps
1402 local $cf::FREEZE = 1;
1403 2121
1404 warn "enter emergency map save\n"; 2122Returns an arrayref with all map paths of currently instantiated and saved
2123random maps. May block.
1405 2124
1406 cf::sync_job { 2125=cut
1407 warn "begin emergency map save\n";
1408 $_->save for values %cf::MAP;
1409 };
1410 2126
1411 warn "end emergency map save\n"; 2127sub random_maps() {
2128 [
2129 map {
2130 utf8::decode $_;
2131 /\.map$/
2132 ? normalise "?random/$_"
2133 : ()
2134 } @{ aio_readdir $RANDOMDIR or [] }
2135 ]
2136}
2137
2138=item cf::map::unique_maps
2139
2140Returns an arrayref of paths of all shared maps that have
2141instantiated unique items. May block.
2142
2143=cut
2144
2145sub unique_maps() {
2146 [
2147 map {
2148 utf8::decode $_;
2149 /\.map$/
2150 ? normalise $_
2151 : ()
2152 } @{ aio_readdir $UNIQUEDIR or [] }
2153 ]
1412} 2154}
1413 2155
1414package cf; 2156package cf;
1415 2157
1416=back 2158=back
1417 2159
2160=head3 cf::object
2161
2162=cut
2163
2164package cf::object;
2165
2166=over 4
2167
2168=item $ob->inv_recursive
2169
2170Returns the inventory of the object _and_ their inventories, recursively.
2171
2172=cut
2173
2174sub inv_recursive_;
2175sub inv_recursive_ {
2176 map { $_, inv_recursive_ $_->inv } @_
2177}
2178
2179sub inv_recursive {
2180 inv_recursive_ inv $_[0]
2181}
2182
2183package cf;
2184
2185=back
1418 2186
1419=head3 cf::object::player 2187=head3 cf::object::player
1420 2188
1421=over 4 2189=over 4
1422 2190
1436 2204
1437 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2205 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1438 2206
1439 if ($self->{record_replies}) { 2207 if ($self->{record_replies}) {
1440 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2208 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2209
1441 } else { 2210 } else {
2211 my $pl = $self->contr;
2212
2213 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2214 my $dialog = $pl->{npc_dialog};
2215 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2216
2217 } else {
1442 $msg = $npc->name . " says: $msg" if $npc; 2218 $msg = $npc->name . " says: $msg" if $npc;
1443 $self->message ($msg, $flags); 2219 $self->message ($msg, $flags);
2220 }
1444 } 2221 }
2222}
2223
2224=item $object->send_msg ($channel, $msg, $color, [extra...])
2225
2226=cut
2227
2228sub cf::object::send_msg {
2229 my $pl = shift->contr
2230 or return;
2231 $pl->send_msg (@_);
1445} 2232}
1446 2233
1447=item $player_object->may ("access") 2234=item $player_object->may ("access")
1448 2235
1449Returns wether the given player is authorized to access resource "access" 2236Returns wether the given player is authorized to access resource "access"
1462 2249
1463=item $player_object->enter_link 2250=item $player_object->enter_link
1464 2251
1465Freezes the player and moves him/her to a special map (C<{link}>). 2252Freezes the player and moves him/her to a special map (C<{link}>).
1466 2253
1467The player should be reaosnably safe there for short amounts of time. You 2254The player should be reasonably safe there for short amounts of time. You
1468I<MUST> call C<leave_link> as soon as possible, though. 2255I<MUST> call C<leave_link> as soon as possible, though.
1469 2256
2257Will never block.
2258
1470=item $player_object->leave_link ($map, $x, $y) 2259=item $player_object->leave_link ($map, $x, $y)
1471 2260
1472Moves the player out of the specila link map onto the given map. If the 2261Moves the player out of the special C<{link}> map onto the specified
1473map is not valid (or omitted), the player will be moved back to the 2262map. If the map is not valid (or omitted), the player will be moved back
1474location he/she was before the call to C<enter_link>, or, if that fails, 2263to the location he/she was before the call to C<enter_link>, or, if that
1475to the emergency map position. 2264fails, to the emergency map position.
1476 2265
1477Might block. 2266Might block.
1478 2267
1479=cut 2268=cut
2269
2270sub link_map {
2271 unless ($LINK_MAP) {
2272 $LINK_MAP = cf::map::find "{link}"
2273 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2274 $LINK_MAP->load;
2275 }
2276
2277 $LINK_MAP
2278}
1480 2279
1481sub cf::object::player::enter_link { 2280sub cf::object::player::enter_link {
1482 my ($self) = @_; 2281 my ($self) = @_;
1483 2282
1484 $self->deactivate_recursive; 2283 $self->deactivate_recursive;
1485 2284
1486 return if $self->map == $LINK_MAP; 2285 return if UNIVERSAL::isa $self->map, "ext::map_link";
1487 2286
1488 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 2287 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489 if $self->map; 2288 if $self->map && $self->map->{path} ne "{link}";
1490 2289
1491 $self->enter_map ($LINK_MAP, 20, 20); 2290 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1492} 2291}
1493 2292
1494sub cf::object::player::leave_link { 2293sub cf::object::player::leave_link {
1495 my ($self, $map, $x, $y) = @_; 2294 my ($self, $map, $x, $y) = @_;
2295
2296 return unless $self->contr->active;
1496 2297
1497 my $link_pos = delete $self->{_link_pos}; 2298 my $link_pos = delete $self->{_link_pos};
1498 2299
1499 unless ($map) { 2300 unless ($map) {
1500 # restore original map position 2301 # restore original map position
1501 ($map, $x, $y) = @{ $link_pos || [] }; 2302 ($map, $x, $y) = @{ $link_pos || [] };
1502 $map = cf::map::find_map $map; 2303 $map = cf::map::find $map;
1503 2304
1504 unless ($map) { 2305 unless ($map) {
1505 ($map, $x, $y) = @$EMERGENCY_POSITION; 2306 ($map, $x, $y) = @$EMERGENCY_POSITION;
1506 $map = cf::map::find_map $map 2307 $map = cf::map::find $map
1507 or die "FATAL: cannot load emergency map\n"; 2308 or die "FATAL: cannot load emergency map\n";
1508 } 2309 }
1509 } 2310 }
1510 2311
1511 ($x, $y) = (-1, -1) 2312 ($x, $y) = (-1, -1)
1514 # use -1 or undef as default coordinates, not 0, 0 2315 # use -1 or undef as default coordinates, not 0, 0
1515 ($x, $y) = ($map->enter_x, $map->enter_y) 2316 ($x, $y) = ($map->enter_x, $map->enter_y)
1516 if $x <=0 && $y <= 0; 2317 if $x <=0 && $y <= 0;
1517 2318
1518 $map->load; 2319 $map->load;
2320 $map->load_neighbours;
1519 2321
2322 return unless $self->contr->active;
1520 $self->activate_recursive; 2323 $self->activate_recursive;
2324
2325 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1521 $self->enter_map ($map, $x, $y); 2326 $self->enter_map ($map, $x, $y);
1522} 2327}
1523 2328
1524cf::player->attach ( 2329=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1525 on_logout => sub {
1526 my ($pl) = @_;
1527 2330
1528 # abort map switching before logout 2331Moves the player to the given map-path and coordinates by first freezing
1529 if ($pl->ob->{_link_pos}) { 2332her, loading and preparing them map, calling the provided $check callback
1530 cf::sync_job { 2333that has to return the map if sucecssful, and then unfreezes the player on
1531 $pl->ob->leave_link 2334the new (success) or old (failed) map position. In either case, $done will
1532 }; 2335be called at the end of this process.
1533 }
1534 },
1535 on_login => sub {
1536 my ($pl) = @_;
1537 2336
1538 # try to abort aborted map switching on player login :)
1539 # should happen only on crashes
1540 if ($pl->ob->{_link_pos}) {
1541 $pl->ob->enter_link;
1542 Coro::async {
1543 # we need this sleep as the login has a concurrent enter_exit running
1544 # and this sleep increases chances of the player not ending up in scorn
1545 Coro::Timer::sleep 1;
1546 $pl->ob->leave_link;
1547 };
1548 }
1549 },
1550);
1551
1552=item $player_object->goto_map ($path, $x, $y)
1553
1554=cut 2337=cut
1555 2338
2339our $GOTOGEN;
2340
1556sub cf::object::player::goto_map { 2341sub cf::object::player::goto {
1557 my ($self, $path, $x, $y) = @_; 2342 my ($self, $path, $x, $y, $check, $done) = @_;
2343
2344 # do generation counting so two concurrent goto's will be executed in-order
2345 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1558 2346
1559 $self->enter_link; 2347 $self->enter_link;
1560 2348
1561 (Coro::async { 2349 (async {
1562 $path = new cf::path $path; 2350 my $map = eval {
1563
1564 my $map = cf::map::find_map $path->as_string; 2351 my $map = cf::map::find $path;
2352
2353 if ($map) {
1565 $map = $map->customise_for ($self) if $map; 2354 $map = $map->customise_for ($self);
1566 2355 $map = $check->($map) if $check && $map;
1567# warn "entering ", $map->path, " at ($x, $y)\n" 2356 } else {
1568# if $map;
1569
1570 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 2357 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
2358 }
1571 2359
2360 $map
2361 };
2362
2363 if ($@) {
2364 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2365 LOG llevError | logBacktrace, Carp::longmess $@;
2366 }
2367
2368 if ($gen == $self->{_goto_generation}) {
2369 delete $self->{_goto_generation};
1572 $self->leave_link ($map, $x, $y); 2370 $self->leave_link ($map, $x, $y);
2371 }
2372
2373 $done->() if $done;
1573 })->prio (1); 2374 })->prio (1);
1574} 2375}
1575 2376
1576=item $player_object->enter_exit ($exit_object) 2377=item $player_object->enter_exit ($exit_object)
1577 2378
1579 2380
1580sub parse_random_map_params { 2381sub parse_random_map_params {
1581 my ($spec) = @_; 2382 my ($spec) = @_;
1582 2383
1583 my $rmp = { # defaults 2384 my $rmp = { # defaults
1584 xsize => 10, 2385 xsize => (cf::rndm 15, 40),
1585 ysize => 10, 2386 ysize => (cf::rndm 15, 40),
2387 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2388 #layout => string,
1586 }; 2389 };
1587 2390
1588 for (split /\n/, $spec) { 2391 for (split /\n/, $spec) {
1589 my ($k, $v) = split /\s+/, $_, 2; 2392 my ($k, $v) = split /\s+/, $_, 2;
1590 2393
1594 $rmp 2397 $rmp
1595} 2398}
1596 2399
1597sub prepare_random_map { 2400sub prepare_random_map {
1598 my ($exit) = @_; 2401 my ($exit) = @_;
2402
2403 my $guard = cf::lock_acquire "exit_prepare:$exit";
1599 2404
1600 # all this does is basically replace the /! path by 2405 # all this does is basically replace the /! path by
1601 # a new random map path (?random/...) with a seed 2406 # a new random map path (?random/...) with a seed
1602 # that depends on the exit object 2407 # that depends on the exit object
1603 2408
1604 my $rmp = parse_random_map_params $exit->msg; 2409 my $rmp = parse_random_map_params $exit->msg;
1605 2410
1606 if ($exit->map) { 2411 if ($exit->map) {
1607 $rmp->{region} = $exit->map->region_name; 2412 $rmp->{region} = $exit->region->name;
1608 $rmp->{origin_map} = $exit->map->path; 2413 $rmp->{origin_map} = $exit->map->path;
1609 $rmp->{origin_x} = $exit->x; 2414 $rmp->{origin_x} = $exit->x;
1610 $rmp->{origin_y} = $exit->y; 2415 $rmp->{origin_y} = $exit->y;
1611 } 2416 }
1612 2417
1613 $rmp->{random_seed} ||= $exit->random_seed; 2418 $rmp->{random_seed} ||= $exit->random_seed;
1614 2419
1615 my $data = cf::to_json $rmp; 2420 my $data = cf::to_json $rmp;
1616 my $md5 = Digest::MD5::md5_hex $data; 2421 my $md5 = Digest::MD5::md5_hex $data;
2422 my $meta = "$RANDOMDIR/$md5.meta";
1617 2423
1618 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 2424 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1619 aio_write $fh, 0, (length $data), $data, 0; 2425 aio_write $fh, 0, (length $data), $data, 0;
2426 undef $fh;
2427 aio_rename "$meta~", $meta;
1620 2428
1621 $exit->slaying ("?random/$md5"); 2429 $exit->slaying ("?random/$md5");
1622 $exit->msg (undef); 2430 $exit->msg (undef);
1623 } 2431 }
1624} 2432}
1626sub cf::object::player::enter_exit { 2434sub cf::object::player::enter_exit {
1627 my ($self, $exit) = @_; 2435 my ($self, $exit) = @_;
1628 2436
1629 return unless $self->type == cf::PLAYER; 2437 return unless $self->type == cf::PLAYER;
1630 2438
2439 if ($exit->slaying eq "/!") {
2440 #TODO: this should de-fi-ni-te-ly not be a sync-job
2441 # the problem is that $exit might not survive long enough
2442 # so it needs to be done right now, right here
2443 cf::sync_job { prepare_random_map $exit };
2444 }
2445
2446 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2447 my $hp = $exit->stats->hp;
2448 my $sp = $exit->stats->sp;
2449
1631 $self->enter_link; 2450 $self->enter_link;
1632 2451
2452 # if exit is damned, update players death & WoR home-position
2453 $self->contr->savebed ($slaying, $hp, $sp)
2454 if $exit->flag (FLAG_DAMNED);
2455
1633 (Coro::async { 2456 (async {
2457 $self->deactivate_recursive; # just to be sure
1634 unless (eval { 2458 unless (eval {
1635 2459 $self->goto ($slaying, $hp, $sp);
1636 prepare_random_map $exit
1637 if $exit->slaying eq "/!";
1638
1639 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1640 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1641 2460
1642 1; 2461 1;
1643 }) { 2462 }) {
1644 $self->message ("Something went wrong deep within the crossfire server. " 2463 $self->message ("Something went wrong deep within the crossfire server. "
1645 . "I'll try to bring you back to the map you were before. " 2464 . "I'll try to bring you back to the map you were before. "
1646 . "Please report this to the dungeon master", 2465 . "Please report this to the dungeon master!",
1647 cf::NDI_UNIQUE | cf::NDI_RED); 2466 cf::NDI_UNIQUE | cf::NDI_RED);
1648 2467
1649 warn "ERROR in enter_exit: $@"; 2468 warn "ERROR in enter_exit: $@";
1650 $self->leave_link; 2469 $self->leave_link;
1651 } 2470 }
1652 })->prio (1); 2471 })->prio (1);
1665 2484
1666sub cf::client::send_drawinfo { 2485sub cf::client::send_drawinfo {
1667 my ($self, $text, $flags) = @_; 2486 my ($self, $text, $flags) = @_;
1668 2487
1669 utf8::encode $text; 2488 utf8::encode $text;
1670 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2489 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1671} 2490}
1672 2491
2492=item $client->send_msg ($channel, $msg, $color, [extra...])
2493
2494Send a drawinfo or msg packet to the client, formatting the msg for the
2495client if neccessary. C<$type> should be a string identifying the type of
2496the message, with C<log> being the default. If C<$color> is negative, suppress
2497the message unless the client supports the msg packet.
2498
2499=cut
2500
2501sub cf::client::send_msg {
2502 my ($self, $channel, $msg, $color, @extra) = @_;
2503
2504 $msg = $self->pl->expand_cfpod ($msg);
2505
2506 $color &= cf::NDI_CLIENT_MASK; # just in case...
2507
2508 if (ref $channel) {
2509 # send meta info to client, if not yet sent
2510 unless (exists $self->{channel}{$channel->{id}}) {
2511 $self->{channel}{$channel->{id}} = $channel;
2512 $self->ext_msg (channel_info => $channel);
2513 }
2514
2515 $channel = $channel->{id};
2516 }
2517
2518 return unless @extra || length $msg;
2519
2520 if ($self->can_msg) {
2521 # default colour, mask it out
2522 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2523 if $color & cf::NDI_DEF;
2524
2525 $self->send_packet ("msg " . $self->{json_coder}->encode (
2526 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
2527 } else {
2528 if ($color >= 0) {
2529 # replace some tags by gcfclient-compatible ones
2530 for ($msg) {
2531 1 while
2532 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2533 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2534 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2535 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2536 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2537 }
2538
2539 $color &= cf::NDI_COLOR_MASK;
2540
2541 utf8::encode $msg;
2542
2543 if (0 && $msg =~ /\[/) {
2544 # COMMAND/INFO
2545 $self->send_packet ("drawextinfo $color 10 8 $msg")
2546 } else {
2547 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2548 $self->send_packet ("drawinfo $color $msg")
2549 }
2550 }
2551 }
2552}
2553
2554=item $client->ext_msg ($type, @msg)
2555
2556Sends an ext event to the client.
2557
2558=cut
2559
2560sub cf::client::ext_msg($$@) {
2561 my ($self, $type, @msg) = @_;
2562
2563 if ($self->extcmd == 2) {
2564 $self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2565 } elsif ($self->extcmd == 1) { # TODO: remove
2566 push @msg, msgtype => "event_$type";
2567 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2568 }
2569}
2570
2571=item $client->ext_reply ($msgid, @msg)
2572
2573Sends an ext reply to the client.
2574
2575=cut
2576
2577sub cf::client::ext_reply($$@) {
2578 my ($self, $id, @msg) = @_;
2579
2580 if ($self->extcmd == 2) {
2581 $self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2582 } elsif ($self->extcmd == 1) {
2583 #TODO: version 1, remove
2584 unshift @msg, msgtype => "reply", msgid => $id;
2585 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2586 }
2587}
1673 2588
1674=item $success = $client->query ($flags, "text", \&cb) 2589=item $success = $client->query ($flags, "text", \&cb)
1675 2590
1676Queues a query to the client, calling the given callback with 2591Queues a query to the client, calling the given callback with
1677the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2592the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1678C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. 2593C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1679 2594
1680Queries can fail, so check the return code. Or don't, as queries will become 2595Queries can fail, so check the return code. Or don't, as queries will
1681reliable at some point in the future. 2596become reliable at some point in the future.
1682 2597
1683=cut 2598=cut
1684 2599
1685sub cf::client::query { 2600sub cf::client::query {
1686 my ($self, $flags, $text, $cb) = @_; 2601 my ($self, $flags, $text, $cb) = @_;
1694 utf8::encode $text; 2609 utf8::encode $text;
1695 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 2610 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1696 2611
1697 $self->send_packet ($self->{query_queue}[0][0]) 2612 $self->send_packet ($self->{query_queue}[0][0])
1698 if @{ $self->{query_queue} } == 1; 2613 if @{ $self->{query_queue} } == 1;
2614
2615 1
1699} 2616}
1700 2617
1701cf::client->attach ( 2618cf::client->attach (
2619 on_connect => sub {
2620 my ($ns) = @_;
2621
2622 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
2623 },
1702 on_reply => sub { 2624 on_reply => sub {
1703 my ($ns, $msg) = @_; 2625 my ($ns, $msg) = @_;
1704 2626
1705 # this weird shuffling is so that direct followup queries 2627 # this weird shuffling is so that direct followup queries
1706 # get handled first 2628 # get handled first
1707 my $queue = delete $ns->{query_queue}; 2629 my $queue = delete $ns->{query_queue}
2630 or return; # be conservative, not sure how that can happen, but we saw a crash here
1708 2631
1709 (shift @$queue)->[1]->($msg); 2632 (shift @$queue)->[1]->($msg);
2633 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710 2634
1711 push @{ $ns->{query_queue} }, @$queue; 2635 push @{ $ns->{query_queue} }, @$queue;
1712 2636
1713 if (@{ $ns->{query_queue} } == @$queue) { 2637 if (@{ $ns->{query_queue} } == @$queue) {
1714 if (@$queue) { 2638 if (@$queue) {
1716 } else { 2640 } else {
1717 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; 2641 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1718 } 2642 }
1719 } 2643 }
1720 }, 2644 },
2645 on_exticmd => sub {
2646 my ($ns, $buf) = @_;
2647
2648 my $msg = eval { $ns->{json_coder}->decode ($buf) };
2649
2650 if (ref $msg) {
2651 my ($type, $reply, @payload) =
2652 "ARRAY" eq ref $msg
2653 ? @$msg
2654 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
2655
2656 my @reply;
2657
2658 if (my $cb = $EXTICMD{$type}) {
2659 @reply = $cb->($ns, @payload);
2660 }
2661
2662 $ns->ext_reply ($reply, @reply)
2663 if $reply;
2664
2665 } else {
2666 warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
2667 }
2668
2669 cf::override;
2670 },
1721); 2671);
1722 2672
1723=item $client->coro (\&cb) 2673=item $client->async (\&cb)
1724 2674
1725Create a new coroutine, running the specified callback. The coroutine will 2675Create a new coroutine, running the specified callback. The coroutine will
1726be automatically cancelled when the client gets destroyed (e.g. on logout, 2676be automatically cancelled when the client gets destroyed (e.g. on logout,
1727or loss of connection). 2677or loss of connection).
1728 2678
1729=cut 2679=cut
1730 2680
1731sub cf::client::coro { 2681sub cf::client::async {
1732 my ($self, $cb) = @_; 2682 my ($self, $cb) = @_;
1733 2683
1734 my $coro; $coro = async { 2684 my $coro = &Coro::async ($cb);
1735 eval {
1736 $cb->();
1737 };
1738 warn $@ if $@;
1739 };
1740 2685
1741 $coro->on_destroy (sub { 2686 $coro->on_destroy (sub {
1742 delete $self->{_coro}{$coro+0}; 2687 delete $self->{_coro}{$coro+0};
1743 }); 2688 });
1744 2689
1771our $safe = new Safe "safe"; 2716our $safe = new Safe "safe";
1772our $safe_hole = new Safe::Hole; 2717our $safe_hole = new Safe::Hole;
1773 2718
1774$SIG{FPE} = 'IGNORE'; 2719$SIG{FPE} = 'IGNORE';
1775 2720
1776$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 2721$safe->permit_only (Opcode::opset qw(
2722 :base_core :base_mem :base_orig :base_math
2723 grepstart grepwhile mapstart mapwhile
2724 sort time
2725));
1777 2726
1778# here we export the classes and methods available to script code 2727# here we export the classes and methods available to script code
1779 2728
1780=pod 2729=pod
1781 2730
1782The following fucntions and emthods are available within a safe environment: 2731The following functions and methods are available within a safe environment:
1783 2732
1784 cf::object contr pay_amount pay_player map 2733 cf::object
2734 contr pay_amount pay_player map x y force_find force_add
2735 insert remove name archname title slaying race decrease_ob_nr
2736
1785 cf::object::player player 2737 cf::object::player
1786 cf::player peaceful 2738 player
1787 cf::map trigger 2739
2740 cf::player
2741 peaceful
2742
2743 cf::map
2744 trigger
1788 2745
1789=cut 2746=cut
1790 2747
1791for ( 2748for (
1792 ["cf::object" => qw(contr pay_amount pay_player map)], 2749 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
2750 insert remove inv name archname title slaying race
2751 decrease_ob_nr)],
1793 ["cf::object::player" => qw(player)], 2752 ["cf::object::player" => qw(player)],
1794 ["cf::player" => qw(peaceful)], 2753 ["cf::player" => qw(peaceful)],
1795 ["cf::map" => qw(trigger)], 2754 ["cf::map" => qw(trigger)],
1796) { 2755) {
1797 no strict 'refs'; 2756 no strict 'refs';
1868=back 2827=back
1869 2828
1870=cut 2829=cut
1871 2830
1872############################################################################# 2831#############################################################################
2832# the server's init and main functions
1873 2833
1874=head2 EXTENSION DATABASE SUPPORT 2834sub load_facedata($) {
2835 my ($path) = @_;
1875 2836
1876Crossfire maintains a very simple database for extension use. It can 2837 my $enc = JSON::XS->new->utf8->canonical;
1877currently store anything that can be serialised using Storable, which
1878excludes objects.
1879 2838
1880The parameter C<$family> should best start with the name of the extension 2839 warn "loading facedata from $path\n";
1881using it, it should be unique.
1882 2840
1883=over 4 2841 my $facedata;
2842 0 < aio_load $path, $facedata
2843 or die "$path: $!";
1884 2844
1885=item $hashref = cf::db_get $family 2845 $facedata = Coro::Storable::thaw $facedata;
1886 2846
1887Return a hashref for use by the extension C<$family>, which can be 2847 $facedata->{version} == 2
1888modified. After modifications, you have to call C<cf::db_dirty> or 2848 or cf::cleanup "$path: version mismatch, cannot proceed.";
1889C<cf::db_sync>.
1890 2849
1891=item $value = cf::db_get $family => $key 2850 # patch in the exptable
1892 2851 $facedata->{resource}{"res/exp_table"} = {
1893Returns a single value from the database 2852 type => FT_RSRC,
1894 2853 data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1895=item cf::db_put $family => $hashref
1896
1897Stores the given family hashref into the database. Updates are delayed, if
1898you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899
1900=item cf::db_put $family => $key => $value
1901
1902Stores the given C<$value> in the family hash. Updates are delayed, if you
1903want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905=item cf::db_dirty
1906
1907Marks the database as dirty, to be updated at a later time.
1908
1909=item cf::db_sync
1910
1911Immediately write the database to disk I<if it is dirty>.
1912
1913=cut
1914
1915our $DB;
1916
1917{
1918 my $path = cf::localdir . "/database.pst";
1919
1920 sub db_load() {
1921 $DB = stat $path ? Storable::retrieve $path : { };
1922 }
1923
1924 my $pid;
1925
1926 sub db_save() {
1927 waitpid $pid, 0 if $pid;
1928 if (0 == ($pid = fork)) {
1929 $DB->{_meta}{version} = 1;
1930 Storable::nstore $DB, "$path~";
1931 rename "$path~", $path;
1932 cf::_exit 0 if defined $pid;
1933 }
1934 }
1935
1936 my $dirty;
1937
1938 sub db_sync() {
1939 db_save if $dirty;
1940 undef $dirty;
1941 }
1942
1943 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944 db_sync;
1945 }); 2854 };
2855 cf::cede_to_tick;
1946 2856
1947 sub db_dirty() {
1948 $dirty = 1;
1949 $idle->start;
1950 } 2857 {
2858 my $faces = $facedata->{faceinfo};
1951 2859
1952 sub db_get($;$) { 2860 while (my ($face, $info) = each %$faces) {
1953 @_ >= 2 2861 my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954 ? $DB->{$_[0]}{$_[1]} 2862 cf::face::set_visibility $idx, $info->{visibility};
1955 : ($DB->{$_[0]} ||= { }) 2863 cf::face::set_magicmap $idx, $info->{magicmap};
1956 } 2864 cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2865 cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1957 2866
1958 sub db_put($$;$) { 2867 cf::cede_to_tick;
1959 if (@_ >= 3) {
1960 $DB->{$_[0]}{$_[1]} = $_[2];
1961 } else {
1962 $DB->{$_[0]} = $_[1];
1963 }
1964 db_dirty;
1965 }
1966
1967 cf::global->attach (
1968 prio => 10000,
1969 on_cleanup => sub {
1970 db_sync;
1971 }, 2868 }
1972 );
1973}
1974 2869
1975############################################################################# 2870 while (my ($face, $info) = each %$faces) {
1976# the server's main() 2871 next unless $info->{smooth};
2872 my $idx = cf::face::find $face
2873 or next;
2874 if (my $smooth = cf::face::find $info->{smooth}) {
2875 cf::face::set_smooth $idx, $smooth;
2876 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2877 } else {
2878 warn "smooth face '$info->{smooth}' not found for face '$face'";
2879 }
2880
2881 cf::cede_to_tick;
2882 }
2883 }
2884
2885 {
2886 my $anims = $facedata->{animinfo};
2887
2888 while (my ($anim, $info) = each %$anims) {
2889 cf::anim::set $anim, $info->{frames}, $info->{facings};
2890 cf::cede_to_tick;
2891 }
2892
2893 cf::anim::invalidate_all; # d'oh
2894 }
2895
2896 {
2897 # TODO: for gcfclient pleasure, we should give resources
2898 # that gcfclient doesn't grok a >10000 face index.
2899 my $res = $facedata->{resource};
2900
2901 my $soundconf = delete $res->{"res/sound.conf"};
2902
2903 while (my ($name, $info) = each %$res) {
2904 my $idx = (cf::face::find $name) || cf::face::alloc $name;
2905 my $data;
2906
2907 if ($info->{type} & 1) {
2908 # prepend meta info
2909
2910 my $meta = $enc->encode ({
2911 name => $name,
2912 %{ $info->{meta} || {} },
2913 });
2914
2915 $data = pack "(w/a*)*", $meta, $info->{data};
2916 } else {
2917 $data = $info->{data};
2918 }
2919
2920 cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
2921 cf::face::set_type $idx, $info->{type};
2922
2923 cf::cede_to_tick;
2924 }
2925
2926 if ($soundconf) {
2927 $soundconf = $enc->decode (delete $soundconf->{data});
2928
2929 for (0 .. SOUND_CAST_SPELL_0 - 1) {
2930 my $sound = $soundconf->{compat}[$_]
2931 or next;
2932
2933 my $face = cf::face::find "sound/$sound->[1]";
2934 cf::sound::set $sound->[0] => $face;
2935 cf::sound::old_sound_index $_, $face; # gcfclient-compat
2936 }
2937
2938 while (my ($k, $v) = each %{$soundconf->{event}}) {
2939 my $face = cf::face::find "sound/$v";
2940 cf::sound::set $k => $face;
2941 }
2942 }
2943 }
2944
2945 1
2946}
2947
2948register_exticmd fx_want => sub {
2949 my ($ns, $want) = @_;
2950
2951 while (my ($k, $v) = each %$want) {
2952 $ns->fx_want ($k, $v);
2953 }
2954};
2955
2956sub reload_regions {
2957 load_resource_file "$MAPDIR/regions"
2958 or die "unable to load regions file\n";
2959
2960 for (cf::region::list) {
2961 $_->{match} = qr/$_->{match}/
2962 if exists $_->{match};
2963 }
2964}
2965
2966sub reload_facedata {
2967 load_facedata "$DATADIR/facedata"
2968 or die "unable to load facedata\n";
2969}
2970
2971sub reload_archetypes {
2972 load_resource_file "$DATADIR/archetypes"
2973 or die "unable to load archetypes\n";
2974 #d# NEED to laod twice to resolve forward references
2975 # this really needs to be done in an extra post-pass
2976 # (which needs to be synchronous, so solve it differently)
2977 load_resource_file "$DATADIR/archetypes"
2978 or die "unable to load archetypes\n";
2979}
2980
2981sub reload_treasures {
2982 load_resource_file "$DATADIR/treasures"
2983 or die "unable to load treasurelists\n";
2984}
2985
2986sub reload_resources {
2987 warn "reloading resource files...\n";
2988
2989 reload_regions;
2990 reload_facedata;
2991 #reload_archetypes;#d#
2992 reload_archetypes;
2993 reload_treasures;
2994
2995 warn "finished reloading resource files\n";
2996}
2997
2998sub init {
2999 reload_resources;
3000}
1977 3001
1978sub cfg_load { 3002sub cfg_load {
1979 open my $fh, "<:utf8", cf::confdir . "/config" 3003 open my $fh, "<:utf8", "$CONFDIR/config"
1980 or return; 3004 or return;
1981 3005
1982 local $/; 3006 local $/;
1983 *CFG = YAML::Syck::Load <$fh>; 3007 *CFG = YAML::Syck::Load <$fh>;
3008
3009 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
3010
3011 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3012 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
3013
3014 if (exists $CFG{mlockall}) {
3015 eval {
3016 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
3017 and die "WARNING: m(un)lockall failed: $!\n";
3018 };
3019 warn $@ if $@;
3020 }
1984} 3021}
1985 3022
1986sub main { 3023sub main {
1987 # we must not ever block the main coroutine 3024 # we must not ever block the main coroutine
1988 local $Coro::idle = sub { 3025 local $Coro::idle = sub {
1989 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3026 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990 (Coro::unblock_sub { 3027 (async {
1991 Event::one_event; 3028 Event::one_event;
1992 })->(); 3029 })->prio (Coro::PRIO_MAX);
1993 }; 3030 };
1994 3031
1995 cfg_load; 3032 cfg_load;
1996 db_load; 3033 db_init;
1997 load_extensions; 3034 load_extensions;
3035
3036 $TICK_WATCHER->start;
1998 Event::loop; 3037 Event::loop;
1999} 3038}
2000 3039
2001############################################################################# 3040#############################################################################
2002# initialisation 3041# initialisation and cleanup
2003 3042
3043# install some emergency cleanup handlers
3044BEGIN {
3045 for my $signal (qw(INT HUP TERM)) {
3046 Event->signal (
3047 reentrant => 0,
3048 data => WF_AUTOCANCEL,
3049 signal => $signal,
3050 prio => 0,
3051 cb => sub {
3052 cf::cleanup "SIG$signal";
3053 },
3054 );
3055 }
3056}
3057
3058sub write_runtime {
3059 my $runtime = "$LOCALDIR/runtime";
3060
3061 # first touch the runtime file to show we are still running:
3062 # the fsync below can take a very very long time.
3063
3064 IO::AIO::aio_utime $runtime, undef, undef;
3065
3066 my $guard = cf::lock_acquire "write_runtime";
3067
3068 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
3069 or return;
3070
3071 my $value = $cf::RUNTIME + 90 + 10;
3072 # 10 is the runtime save interval, for a monotonic clock
3073 # 60 allows for the watchdog to kill the server.
3074
3075 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3076 and return;
3077
3078 # always fsync - this file is important
3079 aio_fsync $fh
3080 and return;
3081
3082 # touch it again to show we are up-to-date
3083 aio_utime $fh, undef, undef;
3084
3085 close $fh
3086 or return;
3087
3088 aio_rename "$runtime~", $runtime
3089 and return;
3090
3091 warn "runtime file written.\n";
3092
3093 1
3094}
3095
3096sub emergency_save() {
3097 my $freeze_guard = cf::freeze_mainloop;
3098
3099 warn "enter emergency perl save\n";
3100
3101 cf::sync_job {
3102 # use a peculiar iteration method to avoid tripping on perl
3103 # refcount bugs in for. also avoids problems with players
3104 # and maps saved/destroyed asynchronously.
3105 warn "begin emergency player save\n";
3106 for my $login (keys %cf::PLAYER) {
3107 my $pl = $cf::PLAYER{$login} or next;
3108 $pl->valid or next;
3109 $pl->save;
3110 }
3111 warn "end emergency player save\n";
3112
3113 warn "begin emergency map save\n";
3114 for my $path (keys %cf::MAP) {
3115 my $map = $cf::MAP{$path} or next;
3116 $map->valid or next;
3117 $map->save;
3118 }
3119 warn "end emergency map save\n";
3120
3121 warn "begin emergency database checkpoint\n";
3122 BDB::db_env_txn_checkpoint $DB_ENV;
3123 warn "end emergency database checkpoint\n";
3124 };
3125
3126 warn "leave emergency perl save\n";
3127}
3128
3129sub post_cleanup {
3130 my ($make_core) = @_;
3131
3132 warn Carp::longmess "post_cleanup backtrace"
3133 if $make_core;
3134}
3135
2004sub reload() { 3136sub do_reload_perl() {
2005 # can/must only be called in main 3137 # can/must only be called in main
2006 if ($Coro::current != $Coro::main) { 3138 if ($Coro::current != $Coro::main) {
2007 warn "can only reload from main coroutine\n"; 3139 warn "can only reload from main coroutine";
2008 return; 3140 return;
2009 } 3141 }
2010 3142
2011 warn "reloading..."; 3143 warn "reloading...";
2012 3144
2013 local $FREEZE = 1; 3145 warn "entering sync_job";
3146
3147 cf::sync_job {
3148 cf::write_runtime; # external watchdog should not bark
2014 cf::emergency_save; 3149 cf::emergency_save;
3150 cf::write_runtime; # external watchdog should not bark
2015 3151
2016 eval { 3152 warn "syncing database to disk";
3153 BDB::db_env_txn_checkpoint $DB_ENV;
3154
2017 # if anything goes wrong in here, we should simply crash as we already saved 3155 # if anything goes wrong in here, we should simply crash as we already saved
2018 3156
2019 # cancel all watchers 3157 warn "cancelling all WF_AUTOCANCEL watchers";
2020 for (Event::all_watchers) { 3158 for (Event::all_watchers) {
2021 $_->cancel if $_->data & WF_AUTOCANCEL; 3159 $_->cancel if $_->data & WF_AUTOCANCEL;
2022 } 3160 }
2023 3161
3162 warn "flushing outstanding aio requests";
3163 for (;;) {
3164 BDB::flush;
3165 IO::AIO::flush;
3166 Coro::cede;
3167 last unless IO::AIO::nreqs || BDB::nreqs;
3168 warn "iterate...";
3169 }
3170
3171 ++$RELOAD;
3172
2024 # cancel all extension coros 3173 warn "cancelling all extension coros";
2025 $_->cancel for values %EXT_CORO; 3174 $_->cancel for values %EXT_CORO;
2026 %EXT_CORO = (); 3175 %EXT_CORO = ();
2027 3176
2028 # unload all extensions 3177 warn "removing commands";
2029 for (@exts) { 3178 %COMMAND = ();
3179
3180 warn "removing ext/exti commands";
3181 %EXTCMD = ();
3182 %EXTICMD = ();
3183
3184 warn "unloading/nuking all extensions";
3185 for my $pkg (@EXTS) {
2030 warn "unloading <$_>"; 3186 warn "... unloading $pkg";
2031 unload_extension $_; 3187
3188 if (my $cb = $pkg->can ("unload")) {
3189 eval {
3190 $cb->($pkg);
3191 1
3192 } or warn "$pkg unloaded, but with errors: $@";
2032 } 3193 }
2033 3194
3195 warn "... nuking $pkg";
3196 Symbol::delete_package $pkg;
3197 }
3198
2034 # unload all modules loaded from $LIBDIR 3199 warn "unloading all perl modules loaded from $LIBDIR";
2035 while (my ($k, $v) = each %INC) { 3200 while (my ($k, $v) = each %INC) {
2036 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 3201 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037 3202
2038 warn "removing <$k>"; 3203 warn "... unloading $k";
2039 delete $INC{$k}; 3204 delete $INC{$k};
2040 3205
2041 $k =~ s/\.pm$//; 3206 $k =~ s/\.pm$//;
2042 $k =~ s/\//::/g; 3207 $k =~ s/\//::/g;
2043 3208
2046 } 3211 }
2047 3212
2048 Symbol::delete_package $k; 3213 Symbol::delete_package $k;
2049 } 3214 }
2050 3215
2051 # sync database to disk
2052 cf::db_sync;
2053 IO::AIO::flush;
2054
2055 # get rid of safe::, as good as possible 3216 warn "getting rid of safe::, as good as possible";
2056 Symbol::delete_package "safe::$_" 3217 Symbol::delete_package "safe::$_"
2057 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3218 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058 3219
2059 # remove register_script_function callbacks
2060 # TODO
2061
2062 # unload cf.pm "a bit" 3220 warn "unloading cf.pm \"a bit\"";
2063 delete $INC{"cf.pm"}; 3221 delete $INC{"cf.pm"};
3222 delete $INC{"cf/pod.pm"};
2064 3223
2065 # don't, removes xs symbols, too, 3224 # don't, removes xs symbols, too,
2066 # and global variables created in xs 3225 # and global variables created in xs
2067 #Symbol::delete_package __PACKAGE__; 3226 #Symbol::delete_package __PACKAGE__;
2068 3227
2069 # reload cf.pm 3228 warn "unload completed, starting to reload now";
3229
2070 warn "reloading cf.pm"; 3230 warn "reloading cf.pm";
2071 require cf; 3231 require cf;
2072 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3232 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073 3233
2074 # load config and database again 3234 warn "loading config and database again";
2075 cf::cfg_load; 3235 cf::cfg_load;
2076 cf::db_load;
2077 3236
2078 # load extensions
2079 warn "load extensions"; 3237 warn "loading extensions";
2080 cf::load_extensions; 3238 cf::load_extensions;
2081 3239
2082 # reattach attachments to objects 3240 warn "reattaching attachments to objects/players";
2083 warn "reattach"; 3241 _global_reattach; # objects, sockets
2084 _global_reattach; 3242 warn "reattaching attachments to maps";
2085 }; 3243 reattach $_ for values %MAP;
3244 warn "reattaching attachments to players";
3245 reattach $_ for values %PLAYER;
2086 3246
2087 if ($@) { 3247 warn "leaving sync_job";
3248
3249 1
3250 } or do {
2088 warn $@; 3251 warn $@;
2089 warn "error while reloading, exiting."; 3252 warn "error while reloading, exiting.";
2090 exit 1; 3253 exit 1;
2091 } 3254 };
2092 3255
2093 warn "reloaded successfully"; 3256 warn "reloaded";
2094}; 3257};
2095 3258
2096############################################################################# 3259our $RELOAD_WATCHER; # used only during reload
2097 3260
2098unless ($LINK_MAP) { 3261sub reload_perl() {
2099 $LINK_MAP = cf::map::new; 3262 # doing reload synchronously and two reloads happen back-to-back,
3263 # coro crashes during coro_state_free->destroy here.
2100 3264
2101 $LINK_MAP->width (41); 3265 $RELOAD_WATCHER ||= Event->timer (
2102 $LINK_MAP->height (41); 3266 reentrant => 0,
2103 $LINK_MAP->alloc;
2104 $LINK_MAP->path ("{link}");
2105 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108 # dirty hack because... archetypes are not yet loaded
2109 Event->timer (
2110 after => 2, 3267 after => 0,
3268 data => WF_AUTOCANCEL,
2111 cb => sub { 3269 cb => sub {
2112 $_[0]->w->cancel; 3270 do_reload_perl;
2113 3271 undef $RELOAD_WATCHER;
2114 # provide some exits "home"
2115 my $exit = cf::object::new "exit";
2116
2117 $exit->slaying ($EMERGENCY_POSITION->[0]);
2118 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121 $LINK_MAP->insert ($exit->clone, 19, 19);
2122 $LINK_MAP->insert ($exit->clone, 19, 20);
2123 $LINK_MAP->insert ($exit->clone, 19, 21);
2124 $LINK_MAP->insert ($exit->clone, 20, 19);
2125 $LINK_MAP->insert ($exit->clone, 20, 21);
2126 $LINK_MAP->insert ($exit->clone, 21, 19);
2127 $LINK_MAP->insert ($exit->clone, 21, 20);
2128 $LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130 $exit->destroy;
2131 }); 3272 },
2132 3273 );
2133 $LINK_MAP->{deny_save} = 1;
2134 $LINK_MAP->{deny_reset} = 1;
2135
2136 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137} 3274}
2138
2139register "<global>", __PACKAGE__;
2140 3275
2141register_command "reload" => sub { 3276register_command "reload" => sub {
2142 my ($who, $arg) = @_; 3277 my ($who, $arg) = @_;
2143 3278
2144 if ($who->flag (FLAG_WIZ)) { 3279 if ($who->flag (FLAG_WIZ)) {
2145 $who->message ("start of reload.");
2146 reload;
2147 $who->message ("end of reload."); 3280 $who->message ("reloading server.");
3281 async { reload_perl };
2148 } 3282 }
2149}; 3283};
2150 3284
2151unshift @INC, $LIBDIR; 3285unshift @INC, $LIBDIR;
2152 3286
3287my $bug_warning = 0;
3288
3289our @WAIT_FOR_TICK;
3290our @WAIT_FOR_TICK_BEGIN;
3291
3292sub wait_for_tick {
3293 return unless $TICK_WATCHER->is_active;
3294 return if $Coro::current == $Coro::main;
3295
3296 my $signal = new Coro::Signal;
3297 push @WAIT_FOR_TICK, $signal;
3298 $signal->wait;
3299}
3300
3301sub wait_for_tick_begin {
3302 return unless $TICK_WATCHER->is_active;
3303 return if $Coro::current == $Coro::main;
3304
3305 my $signal = new Coro::Signal;
3306 push @WAIT_FOR_TICK_BEGIN, $signal;
3307 $signal->wait;
3308}
3309
3310 my $min = 1e6;#d#
3311 my $avg = 10;
2153$TICK_WATCHER = Event->timer ( 3312$TICK_WATCHER = Event->timer (
2154 reentrant => 0, 3313 reentrant => 0,
3314 parked => 1,
2155 prio => 0, 3315 prio => 0,
2156 at => $NEXT_TICK || $TICK, 3316 at => $NEXT_TICK || $TICK,
2157 data => WF_AUTOCANCEL, 3317 data => WF_AUTOCANCEL,
2158 cb => sub { 3318 cb => sub {
2159 unless ($FREEZE) { 3319 if ($Coro::current != $Coro::main) {
3320 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3321 unless ++$bug_warning > 10;
3322 return;
3323 }
3324
3325 $NOW = $tick_start = Event::time;
3326
2160 cf::server_tick; # one server iteration 3327 cf::server_tick; # one server iteration
2161 $RUNTIME += $TICK; 3328
3329 0 && sync_job {#d#
3330 for(1..10) {
3331 my $t = Event::time;
3332 my $map = my $map = new_from_path cf::map "/tmp/x.map"
3333 or die;
3334
3335 $map->width (50);
3336 $map->height (50);
3337 $map->alloc;
3338 $map->_load_objects ("/tmp/x.map", 1);
3339 my $t = Event::time - $t;
3340
3341 #next unless $t < 0.0013;#d#
3342 if ($t < $min) {
3343 $min = $t;
3344 }
3345 $avg = $avg * 0.99 + $t * 0.01;
3346 }
3347 warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
3348 exit 0;
3349 # 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2162 } 3350 };
2163 3351
3352 $RUNTIME += $TICK;
2164 $NEXT_TICK += $TICK; 3353 $NEXT_TICK += $TICK;
2165 3354
3355 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3356 $NEXT_RUNTIME_WRITE = $NOW + 10;
3357 Coro::async_pool {
3358 write_runtime
3359 or warn "ERROR: unable to write runtime file: $!";
3360 };
3361 }
3362
3363# my $AFTER = Event::time;
3364# warn $AFTER - $NOW;#d#
3365
3366 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3367 $sig->send;
3368 }
3369 while (my $sig = shift @WAIT_FOR_TICK) {
3370 $sig->send;
3371 }
3372
3373 $NOW = Event::time;
3374
2166 # if we are delayed by four ticks or more, skip them all 3375 # if we are delayed by four ticks or more, skip them all
2167 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 3376 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2168 3377
2169 $TICK_WATCHER->at ($NEXT_TICK); 3378 $TICK_WATCHER->at ($NEXT_TICK);
2170 $TICK_WATCHER->start; 3379 $TICK_WATCHER->start;
3380
3381 $LOAD = ($NOW - $tick_start) / $TICK;
3382 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3383
3384 _post_tick;
3385
3386
2171 }, 3387 },
2172); 3388);
2173 3389
3390{
2174IO::AIO::max_poll_time $TICK * 0.2; 3391 BDB::max_poll_time $TICK * 0.1;
2175 3392 $BDB_POLL_WATCHER = Event->io (
2176Event->io ( 3393 reentrant => 0,
2177 fd => IO::AIO::poll_fileno, 3394 fd => BDB::poll_fileno,
2178 poll => 'r', 3395 poll => 'r',
2179 prio => 5, 3396 prio => 0,
2180 data => WF_AUTOCANCEL,
2181 cb => \&IO::AIO::poll_cb,
2182);
2183
2184Event->timer (
2185 data => WF_AUTOCANCEL, 3397 data => WF_AUTOCANCEL,
2186 after => 0, 3398 cb => \&BDB::poll_cb,
2187 interval => 10, 3399 );
2188 cb => sub { 3400 BDB::min_parallel 8;
2189 (Coro::unblock_sub { 3401
2190 write_runtime 3402 BDB::set_sync_prepare {
2191 or warn "ERROR: unable to write runtime file: $!"; 3403 my $status;
3404 my $current = $Coro::current;
3405 (
3406 sub {
3407 $status = $!;
3408 $current->ready; undef $current;
3409 },
3410 sub {
3411 Coro::schedule while defined $current;
3412 $! = $status;
3413 },
3414 )
3415 };
3416
3417 unless ($DB_ENV) {
3418 $DB_ENV = BDB::db_env_create;
3419
3420 cf::sync_job {
3421 eval {
3422 BDB::db_env_open
3423 $DB_ENV,
3424 $BDBDIR,
3425 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3426 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3427 0666;
3428
3429 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3430
3431 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
3432 $DB_ENV->set_lk_detect;
3433 };
3434
3435 cf::cleanup "db_env_open(db): $@" if $@;
2192 })->(); 3436 };
2193 }, 3437 }
2194); 3438}
3439
3440{
3441 IO::AIO::min_parallel 8;
3442
3443 undef $Coro::AIO::WATCHER;
3444 IO::AIO::max_poll_time $TICK * 0.1;
3445 $AIO_POLL_WATCHER = Event->io (
3446 reentrant => 0,
3447 data => WF_AUTOCANCEL,
3448 fd => IO::AIO::poll_fileno,
3449 poll => 'r',
3450 prio => 6,
3451 cb => \&IO::AIO::poll_cb,
3452 );
3453}
3454
3455my $_log_backtrace;
3456
3457sub _log_backtrace {
3458 my ($msg, @addr) = @_;
3459
3460 $msg =~ s/\n//;
3461
3462 # limit the # of concurrent backtraces
3463 if ($_log_backtrace < 2) {
3464 ++$_log_backtrace;
3465 async {
3466 my @bt = fork_call {
3467 @addr = map { sprintf "%x", $_ } @addr;
3468 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3469 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3470 or die "addr2line: $!";
3471
3472 my @funcs;
3473 my @res = <$fh>;
3474 chomp for @res;
3475 while (@res) {
3476 my ($func, $line) = splice @res, 0, 2, ();
3477 push @funcs, "[$func] $line";
3478 }
3479
3480 @funcs
3481 };
3482
3483 LOG llevInfo, "[ABT] $msg\n";
3484 LOG llevInfo, "[ABT] $_\n" for @bt;
3485 --$_log_backtrace;
3486 };
3487 } else {
3488 LOG llevInfo, "[ABT] $msg\n";
3489 LOG llevInfo, "[ABT] [suppressed]\n";
3490 }
3491}
3492
3493# load additional modules
3494use cf::pod;
2195 3495
2196END { cf::emergency_save } 3496END { cf::emergency_save }
2197 3497
21981 34981
2199 3499

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