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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.385 by root, Fri Oct 12 19:13:26 2007 UTC

3use utf8; 3use utf8;
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Storable; 8use Socket;
9use Event;
9use Opcode; 10use Opcode;
10use Safe; 11use Safe;
11use Safe::Hole; 12use Safe::Hole;
13use Storable ();
12 14
13use Coro 3.3 (); 15use Coro 4.1 ();
16use Coro::State;
17use Coro::Handle;
14use Coro::Event; 18use Coro::Event;
15use Coro::Timer; 19use Coro::Timer;
16use Coro::Signal; 20use Coro::Signal;
17use Coro::Semaphore; 21use Coro::Semaphore;
18use Coro::AIO; 22use Coro::AIO;
23use Coro::Storable;
24use Coro::Util ();
19 25
26use JSON::XS ();
27use BDB ();
20use Data::Dumper; 28use Data::Dumper;
21use Digest::MD5; 29use Digest::MD5;
22use Fcntl; 30use Fcntl;
23use IO::AIO 2.32 ();
24use YAML::Syck (); 31use YAML::Syck ();
32use IO::AIO 2.51 ();
25use Time::HiRes; 33use Time::HiRes;
34use Compress::LZF;
35use Digest::MD5 ();
26 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
27use 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
28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 44
31# 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?
32$YAML::Syck::ImplicitUnicode = 1; 46$YAML::Syck::ImplicitUnicode = 1;
33 47
34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 48$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35 49
50sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
51
36our %COMMAND = (); 52our %COMMAND = ();
37our %COMMAND_TIME = (); 53our %COMMAND_TIME = ();
38 54
39our @EXTS = (); # list of extension package names 55our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 56our %EXTCMD = ();
57our %EXTICMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 58our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 59our %EXT_MAP = (); # pluggable maps
43 60
61our $RELOAD; # number of reloads so far
44our @EVENT; 62our @EVENT;
45our $LIBDIR = datadir . "/ext";
46 63
47our $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(!)
48our $TICK_WATCHER; 77our $TICK_WATCHER;
78our $AIO_POLL_WATCHER;
79our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49our $NEXT_TICK; 80our $NEXT_TICK;
50our $NOW; 81our $NOW;
82our $USE_FSYNC = 1; # use fsync to write maps - default off
83
84our $BDB_POLL_WATCHER;
85our $BDB_DEADLOCK_WATCHER;
86our $BDB_CHECKPOINT_WATCHER;
87our $BDB_TRICKLE_WATCHER;
88our $DB_ENV;
51 89
52our %CFG; 90our %CFG;
53 91
54our $UPTIME; $UPTIME ||= time; 92our $UPTIME; $UPTIME ||= time;
55our $RUNTIME; 93our $RUNTIME;
56 94
57our %PLAYER; # all users 95our (%PLAYER, %PLAYER_LOADING); # all users
58our %MAP; # all maps 96our (%MAP, %MAP_LOADING ); # all maps
59our $LINK_MAP; # the special {link} map, which is always available 97our $LINK_MAP; # the special {link} map, which is always available
60our $RANDOM_MAPS = cf::localdir . "/random";
61
62our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64 98
65# used to convert map paths into valid unix filenames by replacing / by ∕ 99# used to convert map paths into valid unix filenames by replacing / by ∕
66our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 100our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67 101
102our $LOAD; # a number between 0 (idle) and 1 (too many objects)
103our $LOADAVG; # same thing, but with alpha-smoothing
104our $tick_start; # for load detecting purposes
105
68binmode STDOUT; 106binmode STDOUT;
69binmode STDERR; 107binmode STDERR;
70 108
71# read virtual server time, if available 109# read virtual server time, if available
72unless ($RUNTIME || !-e cf::localdir . "/runtime") { 110unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
73 open my $fh, "<", cf::localdir . "/runtime" 111 open my $fh, "<", "$LOCALDIR/runtime"
74 or die "unable to read runtime file: $!"; 112 or die "unable to read runtime file: $!";
75 $RUNTIME = <$fh> + 0.; 113 $RUNTIME = <$fh> + 0.;
76} 114}
77 115
78mkdir cf::localdir; 116mkdir $_
79mkdir cf::localdir . "/" . cf::playerdir; 117 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
80mkdir cf::localdir . "/" . cf::tmpdir;
81mkdir cf::localdir . "/" . cf::uniquedir;
82mkdir $RANDOM_MAPS;
83 118
84our $EMERGENCY_POSITION; 119our $EMERGENCY_POSITION;
120
121sub cf::map::normalise;
85 122
86############################################################################# 123#############################################################################
87 124
88=head2 GLOBAL VARIABLES 125=head2 GLOBAL VARIABLES
89 126
96=item $cf::RUNTIME 133=item $cf::RUNTIME
97 134
98The time this server has run, starts at 0 and is increased by $cf::TICK on 135The time this server has run, starts at 0 and is increased by $cf::TICK on
99every server tick. 136every server tick.
100 137
101=item $cf::LIBDIR 138=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
139$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
140$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102 141
103The perl library directory, where extensions and cf-specific modules can 142Various directories - "/etc", read-only install directory, perl-library
104be found. It will be added to C<@INC> automatically. 143directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
144unique-items directory, player file directory, random maps directory and
145database environment.
105 146
106=item $cf::NOW 147=item $cf::NOW
107 148
108The time of the last (current) server tick. 149The time of the last (current) server tick.
109 150
110=item $cf::TICK 151=item $cf::TICK
111 152
112The interval between server ticks, in seconds. 153The interval between server ticks, in seconds.
154
155=item $cf::LOADAVG
156
157The current CPU load on the server (alpha-smoothed), as a value between 0
158(none) and 1 (overloaded), indicating how much time is spent on processing
159objects per tick. Healthy values are < 0.5.
160
161=item $cf::LOAD
162
163The raw value load value from the last tick.
113 164
114=item %cf::CFG 165=item %cf::CFG
115 166
116Configuration for the server, loaded from C</etc/crossfire/config>, or 167Configuration for the server, loaded from C</etc/crossfire/config>, or
117from wherever your confdir points to. 168from wherever your confdir points to.
118 169
119=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE 170=item cf::wait_for_tick, cf::wait_for_tick_begin
120 171
121These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK) 172These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick 173returns directly I<after> the tick processing (and consequently, can only wake one process
123processing has been done. Call C<< ->wait >> on them to maximise the 174per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124window of cpu time available, or simply to synchronise to the server tick. 175
176=item @cf::INVOKE_RESULTS
177
178This array contains the results of the last C<invoke ()> call. When
179C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
180that call.
125 181
126=back 182=back
127 183
128=cut 184=cut
129 185
130BEGIN { 186BEGIN {
131 *CORE::GLOBAL::warn = sub { 187 *CORE::GLOBAL::warn = sub {
132 my $msg = join "", @_; 188 my $msg = join "", @_;
133 utf8::encode $msg;
134 189
135 $msg .= "\n" 190 $msg .= "\n"
136 unless $msg =~ /\n$/; 191 unless $msg =~ /\n$/;
192
193 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
137 194
138 LOG llevError, $msg; 195 LOG llevError, $msg;
139 }; 196 };
140} 197}
141 198
142@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 199@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 200@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 201@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 202@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 203@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
204@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 205@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148 206
149# we bless all objects into (empty) derived classes to force a method lookup 207# we bless all objects into (empty) derived classes to force a method lookup
150# within the Safe compartment. 208# within the Safe compartment.
151for my $pkg (qw( 209for my $pkg (qw(
152 cf::global cf::attachable 210 cf::global cf::attachable
160} 218}
161 219
162$Event::DIED = sub { 220$Event::DIED = sub {
163 warn "error in event callback: @_"; 221 warn "error in event callback: @_";
164}; 222};
223
224#############################################################################
165 225
166=head2 UTILITY FUNCTIONS 226=head2 UTILITY FUNCTIONS
167 227
168=over 4 228=over 4
169 229
188 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 248 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189 $d 249 $d
190 } || "[unable to dump $_[0]: '$@']"; 250 } || "[unable to dump $_[0]: '$@']";
191} 251}
192 252
193use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195=item $ref = cf::from_json $json 253=item $ref = cf::from_json $json
196 254
197Converts a JSON string into the corresponding perl data structure. 255Converts a JSON string into the corresponding perl data structure.
198 256
199=cut
200
201sub from_json($) {
202 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203 JSON::Syck::Load $_[0]
204}
205
206=item $json = cf::to_json $ref 257=item $json = cf::to_json $ref
207 258
208Converts a perl data structure into its JSON representation. 259Converts a perl data structure into its JSON representation.
209 260
210=cut 261=cut
211 262
212sub to_json($) { 263our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 264
214 JSON::Syck::Dump $_[0] 265sub to_json ($) { $json_coder->encode ($_[0]) }
215} 266sub from_json ($) { $json_coder->decode ($_[0]) }
216 267
217=item cf::lock_wait $string 268=item cf::lock_wait $string
218 269
219Wait until the given lock is available. See cf::lock_acquire. 270Wait until the given lock is available. See cf::lock_acquire.
220 271
223Wait until the given lock is available and then acquires it and returns 274Wait until the given lock is available and then acquires it and returns
224a Coro::guard object. If the guard object gets destroyed (goes out of scope, 275a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225for example when the coroutine gets canceled), the lock is automatically 276for example when the coroutine gets canceled), the lock is automatically
226returned. 277returned.
227 278
279Locks are *not* recursive, locking from the same coro twice results in a
280deadlocked coro.
281
228Lock names should begin with a unique identifier (for example, cf::map::find 282Lock names should begin with a unique identifier (for example, cf::map::find
229uses map_find and cf::map::load uses map_load). 283uses map_find and cf::map::load uses map_load).
230 284
285=item $locked = cf::lock_active $string
286
287Return true if the lock is currently active, i.e. somebody has locked it.
288
231=cut 289=cut
232 290
233our %LOCK; 291our %LOCK;
292our %LOCKER;#d#
234 293
235sub lock_wait($) { 294sub lock_wait($) {
236 my ($key) = @_; 295 my ($key) = @_;
296
297 if ($LOCKER{$key} == $Coro::current) {#d#
298 Carp::cluck "lock_wait($key) for already-acquired lock";#d#
299 return;#d#
300 }#d#
237 301
238 # wait for lock, if any 302 # wait for lock, if any
239 while ($LOCK{$key}) { 303 while ($LOCK{$key}) {
240 push @{ $LOCK{$key} }, $Coro::current; 304 push @{ $LOCK{$key} }, $Coro::current;
241 Coro::schedule; 305 Coro::schedule;
247 311
248 # wait, to be sure we are not locked 312 # wait, to be sure we are not locked
249 lock_wait $key; 313 lock_wait $key;
250 314
251 $LOCK{$key} = []; 315 $LOCK{$key} = [];
316 $LOCKER{$key} = $Coro::current;#d#
252 317
253 Coro::guard { 318 Coro::guard {
319 delete $LOCKER{$key};#d#
254 # wake up all waiters, to be on the safe side 320 # wake up all waiters, to be on the safe side
255 $_->ready for @{ delete $LOCK{$key} }; 321 $_->ready for @{ delete $LOCK{$key} };
256 } 322 }
257} 323}
258 324
325sub lock_active($) {
326 my ($key) = @_;
327
328 ! ! $LOCK{$key}
329}
330
259sub freeze_mainloop { 331sub freeze_mainloop {
260 return unless $TICK_WATCHER->is_active; 332 return unless $TICK_WATCHER->is_active;
261 333
262 my $guard = Coro::guard { $TICK_WATCHER->start }; 334 my $guard = Coro::guard {
335 $TICK_WATCHER->start;
336 };
263 $TICK_WATCHER->stop; 337 $TICK_WATCHER->stop;
264 $guard 338 $guard
339}
340
341=item cf::get_slot $time[, $priority[, $name]]
342
343Allocate $time seconds of blocking CPU time at priority C<$priority>:
344This call blocks and returns only when you have at least C<$time> seconds
345of cpu time till the next tick. The slot is only valid till the next cede.
346
347The optional C<$name> can be used to identify the job to run. It might be
348used for statistical purposes and should identify the same time-class.
349
350Useful for short background jobs.
351
352=cut
353
354our @SLOT_QUEUE;
355our $SLOT_QUEUE;
356
357$SLOT_QUEUE->cancel if $SLOT_QUEUE;
358$SLOT_QUEUE = Coro::async {
359 $Coro::current->desc ("timeslot manager");
360
361 my $signal = new Coro::Signal;
362
363 while () {
364 next_job:
365 my $avail = cf::till_tick;
366 if ($avail > 0.01) {
367 for (0 .. $#SLOT_QUEUE) {
368 if ($SLOT_QUEUE[$_][0] < $avail) {
369 my $job = splice @SLOT_QUEUE, $_, 1, ();
370 $job->[2]->send;
371 Coro::cede;
372 goto next_job;
373 }
374 }
375 }
376
377 if (@SLOT_QUEUE) {
378 # we do not use wait_for_tick() as it returns immediately when tick is inactive
379 push @cf::WAIT_FOR_TICK, $signal;
380 $signal->wait;
381 } else {
382 Coro::schedule;
383 }
384 }
385};
386
387sub get_slot($;$$) {
388 my ($time, $pri, $name) = @_;
389
390 $time = $TICK * .6 if $time > $TICK * .6;
391 my $sig = new Coro::Signal;
392
393 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
394 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
395 $SLOT_QUEUE->ready;
396 $sig->wait;
265} 397}
266 398
267=item cf::async { BLOCK } 399=item cf::async { BLOCK }
268 400
269Currently the same as Coro::async_pool, meaning you cannot use 401Currently the same as Coro::async_pool, meaning you cannot use
274 406
275BEGIN { *async = \&Coro::async_pool } 407BEGIN { *async = \&Coro::async_pool }
276 408
277=item cf::sync_job { BLOCK } 409=item cf::sync_job { BLOCK }
278 410
279The design of crossfire+ requires that the main coro ($Coro::main) is 411The design of Crossfire TRT requires that the main coroutine ($Coro::main)
280always able to handle events or runnable, as crossfire+ is only partly 412is always able to handle events or runnable, as Crossfire TRT is only
281reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 413partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
414acceptable.
282 415
283If it must be done, put the blocking parts into C<sync_job>. This will run 416If it must be done, put the blocking parts into C<sync_job>. This will run
284the given BLOCK in another coroutine while waiting for the result. The 417the given BLOCK in another coroutine while waiting for the result. The
285server will be frozen during this time, so the block should either finish 418server will be frozen during this time, so the block should either finish
286fast or be very important. 419fast or be very important.
289 422
290sub sync_job(&) { 423sub sync_job(&) {
291 my ($job) = @_; 424 my ($job) = @_;
292 425
293 if ($Coro::current == $Coro::main) { 426 if ($Coro::current == $Coro::main) {
427 my $time = Event::time;
428
294 # this is the main coro, too bad, we have to block 429 # this is the main coro, too bad, we have to block
295 # till the operation succeeds, freezing the server :/ 430 # till the operation succeeds, freezing the server :/
296 431
432 LOG llevError, Carp::longmess "sync job";#d#
433
297 # TODO: use suspend/resume instead 434 # TODO: use suspend/resume instead
298 # (but this is cancel-safe) 435 # (but this is cancel-safe)
299 my $freeze_guard = freeze_mainloop; 436 my $freeze_guard = freeze_mainloop;
300 437
301 my $busy = 1; 438 my $busy = 1;
302 my @res; 439 my @res;
303 440
304 (async { 441 (async {
442 $Coro::current->desc ("sync job coro");
305 @res = eval { $job->() }; 443 @res = eval { $job->() };
306 warn $@ if $@; 444 warn $@ if $@;
307 undef $busy; 445 undef $busy;
308 })->prio (Coro::PRIO_MAX); 446 })->prio (Coro::PRIO_MAX);
309 447
310 while ($busy) { 448 while ($busy) {
311 Coro::cede or Event::one_event; 449 Coro::cede or Event::one_event;
312 } 450 }
451
452 $time = Event::time - $time;
453
454 LOG llevError | logBacktrace, Carp::longmess "long sync job"
455 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
456
457 $tick_start += $time; # do not account sync jobs to server load
313 458
314 wantarray ? @res : $res[0] 459 wantarray ? @res : $res[0]
315 } else { 460 } else {
316 # we are in another coroutine, how wonderful, everything just works 461 # we are in another coroutine, how wonderful, everything just works
317 462
337 $EXT_CORO{$coro+0} = $coro; 482 $EXT_CORO{$coro+0} = $coro;
338 483
339 $coro 484 $coro
340} 485}
341 486
342sub write_runtime { 487=item fork_call { }, $args
343 return unless $TICK_WATCHER->is_active;
344 488
345 my $runtime = cf::localdir . "/runtime"; 489Executes the given code block with the given arguments in a seperate
490process, returning the results. Everything must be serialisable with
491Coro::Storable. May, of course, block. Note that the executed sub may
492never block itself or use any form of Event handling.
346 493
347 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 494=cut
348 or return;
349 495
350 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 496sub fork_call(&@) {
351 (aio_write $fh, 0, (length $value), $value, 0) <= 0 497 my ($cb, @args) = @_;
352 and return;
353 498
354 aio_fsync $fh 499 # we seemingly have to make a local copy of the whole thing,
355 and return; 500 # otherwise perl prematurely frees the stuff :/
501 # TODO: investigate and fix (likely this will be rather laborious)
356 502
357 close $fh 503 my @res = Coro::Util::fork_eval {
358 or return; 504 reset_signals;
505 &$cb
506 }, @args;
359 507
360 aio_rename "$runtime~", $runtime 508 wantarray ? @res : $res[-1]
361 and return; 509}
362 510
511=item $value = cf::db_get $family => $key
512
513Returns a single value from the environment database.
514
515=item cf::db_put $family => $key => $value
516
517Stores the given C<$value> in the family. It can currently store binary
518data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
519
520=item $db = cf::db_table "name"
521
522Create and/or open a new database table. The string must not be "db" and must be unique
523within each server.
524
525=cut
526
527sub db_table($) {
528 my ($name) = @_;
529 my $db = BDB::db_create $DB_ENV;
530
531 eval {
532 $db->set_flags (BDB::CHKSUM);
533
534 utf8::encode $name;
535 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
536 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
537 cf::cleanup "db_open(db): $!" if $!;
538 };
539 cf::cleanup "db_open(db): $@" if $@;
540
541 $db
542}
543
544our $DB;
545
546sub db_init {
547 cf::sync_job {
548 $DB ||= db_table "db";
549 };
550}
551
552sub db_get($$) {
553 my $key = "$_[0]/$_[1]";
554
555 cf::sync_job {
556 BDB::db_get $DB, undef, $key, my $data;
557
558 $! ? ()
559 : $data
363 1 560 }
561}
562
563sub db_put($$$) {
564 BDB::dbreq_pri 4;
565 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
566}
567
568=item cf::cache $id => [$paths...], $processversion => $process
569
570Generic caching function that returns the value of the resource $id,
571caching and regenerating as required.
572
573This function can block.
574
575=cut
576
577sub cache {
578 my ($id, $src, $processversion, $process) = @_;
579
580 my $meta =
581 join "\x00",
582 $processversion,
583 map {
584 aio_stat $_
585 and Carp::croak "$_: $!";
586
587 ($_, (stat _)[7,9])
588 } @$src;
589
590 my $dbmeta = db_get cache => "$id/meta";
591 if ($dbmeta ne $meta) {
592 # changed, we may need to process
593
594 my @data;
595 my $md5;
596
597 for (0 .. $#$src) {
598 0 <= aio_load $src->[$_], $data[$_]
599 or Carp::croak "$src->[$_]: $!";
600 }
601
602 # if processing is expensive, check
603 # checksum first
604 if (1) {
605 $md5 =
606 join "\x00",
607 $processversion,
608 map {
609 cf::cede_to_tick;
610 ($src->[$_], Digest::MD5::md5_hex $data[$_])
611 } 0.. $#$src;
612
613
614 my $dbmd5 = db_get cache => "$id/md5";
615 if ($dbmd5 eq $md5) {
616 db_put cache => "$id/meta", $meta;
617
618 return db_get cache => "$id/data";
619 }
620 }
621
622 my $t1 = Time::HiRes::time;
623 my $data = $process->(\@data);
624 my $t2 = Time::HiRes::time;
625
626 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
627
628 db_put cache => "$id/data", $data;
629 db_put cache => "$id/md5" , $md5;
630 db_put cache => "$id/meta", $meta;
631
632 return $data;
633 }
634
635 db_get cache => "$id/data"
636}
637
638=item cf::datalog type => key => value, ...
639
640Log a datalog packet of the given type with the given key-value pairs.
641
642=cut
643
644sub datalog($@) {
645 my ($type, %kv) = @_;
646 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364} 647}
365 648
366=back 649=back
367 650
368=cut 651=cut
375attach callbacks/event handlers (a collection of which is called an "attachment") 658attach callbacks/event handlers (a collection of which is called an "attachment")
376to it. All such attachable objects support the following methods. 659to it. All such attachable objects support the following methods.
377 660
378In the following description, CLASS can be any of C<global>, C<object> 661In the following description, CLASS can be any of C<global>, C<object>
379C<player>, C<client> or C<map> (i.e. the attachable objects in 662C<player>, C<client> or C<map> (i.e. the attachable objects in
380crossfire+). 663Crossfire TRT).
381 664
382=over 4 665=over 4
383 666
384=item $attachable->attach ($attachment, key => $value...) 667=item $attachable->attach ($attachment, key => $value...)
385 668
499our @CB_TYPE = (); # registry for type (cf-object class) based events 782our @CB_TYPE = (); # registry for type (cf-object class) based events
500our @CB_MAP = (); 783our @CB_MAP = ();
501 784
502my %attachment; 785my %attachment;
503 786
787sub cf::attachable::thawer_merge {
788 # simply override everything except _meta
789 local $_[0]{_meta};
790 %{$_[0]} = %{$_[1]};
791}
792
504sub _attach_cb($$$$) { 793sub _attach_cb($$$$) {
505 my ($registry, $event, $prio, $cb) = @_; 794 my ($registry, $event, $prio, $cb) = @_;
506 795
507 use sort 'stable'; 796 use sort 'stable';
508 797
542 $registry = $CB_TYPE[$object_type] ||= []; 831 $registry = $CB_TYPE[$object_type] ||= [];
543 832
544 } elsif ($type eq "subtype") { 833 } elsif ($type eq "subtype") {
545 defined $object_type or Carp::croak "subtype specified without type"; 834 defined $object_type or Carp::croak "subtype specified without type";
546 my $object_subtype = shift @arg; 835 my $object_subtype = shift @arg;
547 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 836 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548 837
549 } elsif ($type eq "package") { 838 } elsif ($type eq "package") {
550 my $pkg = shift @arg; 839 my $pkg = shift @arg;
551 840
552 while (my ($name, $id) = each %cb_id) { 841 while (my ($name, $id) = each %cb_id) {
581 _attach $registry, $klass, @attach; 870 _attach $registry, $klass, @attach;
582 } 871 }
583 872
584 $obj->{$name} = \%arg; 873 $obj->{$name} = \%arg;
585 } else { 874 } else {
586 warn "object uses attachment '$name' that is not available, postponing.\n"; 875 warn "object uses attachment '$name' which is not available, postponing.\n";
587 } 876 }
588 877
589 $obj->{_attachment}{$name} = undef; 878 $obj->{_attachment}{$name} = undef;
590} 879}
591 880
593 if (ref $_[0]) { 882 if (ref $_[0]) {
594 _object_attach @_; 883 _object_attach @_;
595 } else { 884 } else {
596 _attach shift->_attach_registry, @_; 885 _attach shift->_attach_registry, @_;
597 } 886 }
887 _recalc_want;
598}; 888};
599 889
600# all those should be optimised 890# all those should be optimised
601sub cf::attachable::detach { 891sub cf::attachable::detach {
602 my ($obj, $name) = @_; 892 my ($obj, $name) = @_;
605 delete $obj->{_attachment}{$name}; 895 delete $obj->{_attachment}{$name};
606 reattach ($obj); 896 reattach ($obj);
607 } else { 897 } else {
608 Carp::croak "cannot, currently, detach class attachments"; 898 Carp::croak "cannot, currently, detach class attachments";
609 } 899 }
900 _recalc_want;
610}; 901};
611 902
612sub cf::attachable::attached { 903sub cf::attachable::attached {
613 my ($obj, $name) = @_; 904 my ($obj, $name) = @_;
614 905
629 "; 920 ";
630 die if $@; 921 die if $@;
631} 922}
632 923
633our $override; 924our $override;
634our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 925our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635 926
636sub override { 927sub override {
637 $override = 1; 928 $override = 1;
638 @invoke_results = (); 929 @INVOKE_RESULTS = (@_);
639} 930}
640 931
641sub do_invoke { 932sub do_invoke {
642 my $event = shift; 933 my $event = shift;
643 my $callbacks = shift; 934 my $callbacks = shift;
644 935
645 @invoke_results = (); 936 @INVOKE_RESULTS = ();
646 937
647 local $override; 938 local $override;
648 939
649 for (@$callbacks) { 940 for (@$callbacks) {
650 eval { &{$_->[1]} }; 941 eval { &{$_->[1]} };
667 958
668Generate an object-specific event with the given arguments. 959Generate an object-specific event with the given arguments.
669 960
670This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 961This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671removed in future versions), and there is no public API to access override 962removed in future versions), and there is no public API to access override
672results (if you must, access C<@cf::invoke_results> directly). 963results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673 964
674=back 965=back
675 966
676=cut 967=cut
677 968
678############################################################################# 969#############################################################################
679# object support 970# object support
971#
972
973sub _can_merge {
974 my ($ob1, $ob2) = @_;
975
976 return 1;#d#
977
978 #todo#d# kill yourself and do some recursive checking manually without storable
979 sync_job {
980 my $guard = Coro::Storable::guard;
981 local $Storable::canonical = 1;
982 my $fob1 = Storable::freeze $ob1;
983 my $fob2 = Storable::freeze $ob2;
984 $fob1 eq $fob2
985 }
986}
680 987
681sub reattach { 988sub reattach {
682 # basically do the same as instantiate, without calling instantiate 989 # basically do the same as instantiate, without calling instantiate
683 my ($obj) = @_; 990 my ($obj) = @_;
991
992 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684 993
685 my $registry = $obj->registry; 994 my $registry = $obj->registry;
686 995
687 @$registry = (); 996 @$registry = ();
688 997
729sub object_freezer_save { 1038sub object_freezer_save {
730 my ($filename, $rdata, $objs) = @_; 1039 my ($filename, $rdata, $objs) = @_;
731 1040
732 sync_job { 1041 sync_job {
733 if (length $$rdata) { 1042 if (length $$rdata) {
1043 utf8::decode (my $decname = $filename);
734 warn sprintf "saving %s (%d,%d)\n", 1044 warn sprintf "saving %s (%d,%d)\n",
735 $filename, length $$rdata, scalar @$objs; 1045 $decname, length $$rdata, scalar @$objs;
736 1046
737 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 1047 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738 chmod SAVE_MODE, $fh; 1048 chmod SAVE_MODE, $fh;
739 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 1049 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740 aio_fsync $fh; 1050 aio_fsync $fh if $cf::USE_FSYNC;
741 close $fh; 1051 close $fh;
742 1052
743 if (@$objs) { 1053 if (@$objs) {
744 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 1054 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745 chmod SAVE_MODE, $fh; 1055 chmod SAVE_MODE, $fh;
746 my $data = Storable::nfreeze { version => 1, objs => $objs }; 1056 my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
747 aio_write $fh, 0, (length $data), $data, 0; 1057 aio_write $fh, 0, (length $data), $data, 0;
748 aio_fsync $fh; 1058 aio_fsync $fh if $cf::USE_FSYNC;
749 close $fh; 1059 close $fh;
750 aio_rename "$filename.pst~", "$filename.pst"; 1060 aio_rename "$filename.pst~", "$filename.pst";
751 } 1061 }
752 } else { 1062 } else {
753 aio_unlink "$filename.pst"; 1063 aio_unlink "$filename.pst";
759 } 1069 }
760 } else { 1070 } else {
761 aio_unlink $filename; 1071 aio_unlink $filename;
762 aio_unlink "$filename.pst"; 1072 aio_unlink "$filename.pst";
763 } 1073 }
764 } 1074 };
765} 1075}
766 1076
767sub object_freezer_as_string { 1077sub object_freezer_as_string {
768 my ($rdata, $objs) = @_; 1078 my ($rdata, $objs) = @_;
769 1079
781 or return; 1091 or return;
782 1092
783 unless (aio_stat "$filename.pst") { 1093 unless (aio_stat "$filename.pst") {
784 (aio_load "$filename.pst", $av) >= 0 1094 (aio_load "$filename.pst", $av) >= 0
785 or return; 1095 or return;
786 $av = eval { (Storable::thaw $av)->{objs} };
787 }
788 1096
1097 my $st = eval { Coro::Storable::thaw $av }
1098 || eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
1099 $av = $st->{objs};
1100 }
1101
1102 utf8::decode (my $decname = $filename);
789 warn sprintf "loading %s (%d)\n", 1103 warn sprintf "loading %s (%d,%d)\n",
790 $filename, length $data, scalar @{$av || []};#d# 1104 $decname, length $data, scalar @{$av || []};
1105
791 return ($data, $av); 1106 ($data, $av)
792} 1107}
1108
1109=head2 COMMAND CALLBACKS
1110
1111=over 4
1112
1113=cut
793 1114
794############################################################################# 1115#############################################################################
795# command handling &c 1116# command handling &c
796 1117
797=item cf::register_command $name => \&callback($ob,$args); 1118=item cf::register_command $name => \&callback($ob,$args);
810 push @{ $COMMAND{$name} }, [$caller, $cb]; 1131 push @{ $COMMAND{$name} }, [$caller, $cb];
811} 1132}
812 1133
813=item cf::register_extcmd $name => \&callback($pl,$packet); 1134=item cf::register_extcmd $name => \&callback($pl,$packet);
814 1135
815Register a callbackf ro execution when the client sends an extcmd packet. 1136Register a callback for execution when the client sends an (synchronous)
1137extcmd packet. Ext commands will be processed in the order they are
1138received by the server, like other user commands. The first argument is
1139the logged-in player. Ext commands can only be processed after a player
1140has logged in successfully.
816 1141
817If the callback returns something, it is sent back as if reply was being 1142If the callback returns something, it is sent back as if reply was being
818called. 1143called.
819 1144
1145=item cf::register_exticmd $name => \&callback($ns,$packet);
1146
1147Register a callback for execution when the client sends an (asynchronous)
1148exticmd packet. Exti commands are processed by the server as soon as they
1149are received, i.e. out of order w.r.t. other commands. The first argument
1150is a client socket. Exti commands can be received anytime, even before
1151log-in.
1152
1153If the callback returns something, it is sent back as if reply was being
1154called.
1155
820=cut 1156=cut
821 1157
822sub register_extcmd { 1158sub register_extcmd {
823 my ($name, $cb) = @_; 1159 my ($name, $cb) = @_;
824 1160
825 $EXTCMD{$name} = $cb; 1161 $EXTCMD{$name} = $cb;
1162}
1163
1164sub register_exticmd {
1165 my ($name, $cb) = @_;
1166
1167 $EXTICMD{$name} = $cb;
826} 1168}
827 1169
828cf::player->attach ( 1170cf::player->attach (
829 on_command => sub { 1171 on_command => sub {
830 my ($pl, $name, $params) = @_; 1172 my ($pl, $name, $params) = @_;
839 cf::override; 1181 cf::override;
840 }, 1182 },
841 on_extcmd => sub { 1183 on_extcmd => sub {
842 my ($pl, $buf) = @_; 1184 my ($pl, $buf) = @_;
843 1185
844 my $msg = eval { from_json $buf }; 1186 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845 1187
846 if (ref $msg) { 1188 if (ref $msg) {
1189 my ($type, $reply, @payload) =
1190 "ARRAY" eq ref $msg
1191 ? @$msg
1192 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1193
1194 my @reply;
1195
847 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1196 if (my $cb = $EXTCMD{$type}) {
848 if (my %reply = $cb->($pl, $msg)) { 1197 @reply = $cb->($pl, @payload);
849 $pl->ext_reply ($msg->{msgid}, %reply);
850 }
851 } 1198 }
1199
1200 $pl->ext_reply ($reply, @reply)
1201 if $reply;
1202
852 } else { 1203 } else {
853 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1204 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854 } 1205 }
855 1206
856 cf::override; 1207 cf::override;
857 }, 1208 },
858); 1209);
859 1210
860sub load_extension {
861 my ($path) = @_;
862
863 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
864 my $base = $1;
865 my $pkg = $1;
866 $pkg =~ s/[^[:word:]]/_/g;
867 $pkg = "ext::$pkg";
868
869 warn "... loading '$path' into '$pkg'\n";
870
871 open my $fh, "<:utf8", $path
872 or die "$path: $!";
873
874 my $source =
875 "package $pkg; use strict; use utf8;\n"
876 . "#line 1 \"$path\"\n{\n"
877 . (do { local $/; <$fh> })
878 . "\n};\n1";
879
880 unless (eval $source) {
881 my $msg = $@ ? "$path: $@\n"
882 : "extension disabled.\n";
883 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884 warn $@;
885 warn "mandatory extension failed to load, exiting.\n";
886 exit 1;
887 }
888 die $@;
889 }
890
891 push @EXTS, $pkg;
892}
893
894sub load_extensions { 1211sub load_extensions {
1212 cf::sync_job {
1213 my %todo;
1214
895 for my $ext (<$LIBDIR/*.ext>) { 1215 for my $path (<$LIBDIR/*.ext>) {
896 next unless -r $ext; 1216 next unless -r $path;
897 eval { 1217
898 load_extension $ext; 1218 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1219 my $base = $1;
1220 my $pkg = $1;
1221 $pkg =~ s/[^[:word:]]/_/g;
1222 $pkg = "ext::$pkg";
1223
1224 open my $fh, "<:utf8", $path
1225 or die "$path: $!";
1226
1227 my $source = do { local $/; <$fh> };
1228
1229 my %ext = (
1230 path => $path,
1231 base => $base,
1232 pkg => $pkg,
1233 );
1234
1235 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1236 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1237
1238 $ext{source} =
1239 "package $pkg; use strict; use utf8;\n"
1240 . "#line 1 \"$path\"\n{\n"
1241 . $source
1242 . "\n};\n1";
1243
1244 $todo{$base} = \%ext;
1245 }
1246
1247 my %done;
1248 while (%todo) {
1249 my $progress;
1250
1251 while (my ($k, $v) = each %todo) {
1252 for (split /,\s*/, $v->{meta}{depends}) {
1253 goto skip
1254 unless exists $done{$_};
1255 }
1256
1257 warn "... loading '$k' into '$v->{pkg}'\n";
1258
1259 unless (eval $v->{source}) {
1260 my $msg = $@ ? "$v->{path}: $@\n"
1261 : "$v->{base}: extension inactive.\n";
1262
1263 if (exists $v->{meta}{mandatory}) {
1264 warn $msg;
1265 warn "mandatory extension failed to load, exiting.\n";
1266 exit 1;
1267 }
1268
1269 warn $msg;
1270 }
1271
1272 $done{$k} = delete $todo{$k};
1273 push @EXTS, $v->{pkg};
1274 $progress = 1;
899 1 1275 }
900 } or warn "$ext not loaded: $@"; 1276
1277 skip:
1278 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1279 unless $progress;
1280 }
901 } 1281 };
902} 1282}
903 1283
904############################################################################# 1284#############################################################################
905 1285
1286=back
1287
906=head2 CORE EXTENSIONS 1288=head2 CORE EXTENSIONS
907 1289
908Functions and methods that extend core crossfire objects. 1290Functions and methods that extend core crossfire objects.
909 1291
910=cut 1292=cut
915 1297
916=head3 cf::player 1298=head3 cf::player
917 1299
918=over 4 1300=over 4
919 1301
1302=item cf::player::num_playing
1303
1304Returns the official number of playing players, as per the Crossfire metaserver rules.
1305
1306=cut
1307
1308sub num_playing {
1309 scalar grep
1310 $_->ob->map
1311 && !$_->hidden
1312 && !$_->ob->flag (cf::FLAG_WIZ),
1313 cf::player::list
1314}
1315
920=item cf::player::find $login 1316=item cf::player::find $login
921 1317
922Returns the given player object, loading it if necessary (might block). 1318Returns the given player object, loading it if necessary (might block).
923 1319
924=cut 1320=cut
925 1321
926sub playerdir($) { 1322sub playerdir($) {
927 cf::localdir 1323 "$PLAYERDIR/"
928 . "/"
929 . cf::playerdir
930 . "/"
931 . (ref $_[0] ? $_[0]->ob->name : $_[0]) 1324 . (ref $_[0] ? $_[0]->ob->name : $_[0])
932} 1325}
933 1326
934sub path($) { 1327sub path($) {
935 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 1328 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936 1329
937 (playerdir $login) . "/$login.pl" 1330 (playerdir $login) . "/playerdata"
938} 1331}
939 1332
940sub find_active($) { 1333sub find_active($) {
941 $cf::PLAYER{$_[0]} 1334 $cf::PLAYER{$_[0]}
942 and $cf::PLAYER{$_[0]}->active 1335 and $cf::PLAYER{$_[0]}->active
945 1338
946sub exists($) { 1339sub exists($) {
947 my ($login) = @_; 1340 my ($login) = @_;
948 1341
949 $cf::PLAYER{$login} 1342 $cf::PLAYER{$login}
950 or cf::sync_job { !aio_stat $login } 1343 or cf::sync_job { !aio_stat path $login }
951} 1344}
952 1345
953sub find($) { 1346sub find($) {
954 return $cf::PLAYER{$_[0]} || do { 1347 return $cf::PLAYER{$_[0]} || do {
955 my $login = $_[0]; 1348 my $login = $_[0];
956 1349
957 my $guard = cf::lock_acquire "user_find:$login"; 1350 my $guard = cf::lock_acquire "user_find:$login";
958 1351
959 $cf::PLAYER{$_[0]} || do { 1352 $cf::PLAYER{$_[0]} || do {
960 my $pl = load_pl path $login 1353 # rename old playerfiles to new ones
1354 #TODO: remove when no longer required
1355 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1356 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1357 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1358 aio_unlink +(playerdir $login) . "/$login.pl";
1359
1360 my $f = new_from_file cf::object::thawer path $login
961 or return; 1361 or return;
1362
1363 my $pl = cf::player::load_pl $f
1364 or return;
1365 local $cf::PLAYER_LOADING{$login} = $pl;
1366 $f->resolve_delayed_derefs;
962 $cf::PLAYER{$login} = $pl 1367 $cf::PLAYER{$login} = $pl
963 } 1368 }
964 } 1369 }
965} 1370}
966 1371
976 1381
977 aio_mkdir playerdir $pl, 0770; 1382 aio_mkdir playerdir $pl, 0770;
978 $pl->{last_save} = $cf::RUNTIME; 1383 $pl->{last_save} = $cf::RUNTIME;
979 1384
980 $pl->save_pl ($path); 1385 $pl->save_pl ($path);
981 Coro::cede; 1386 cf::cede_to_tick;
982} 1387}
983 1388
984sub new($) { 1389sub new($) {
985 my ($login) = @_; 1390 my ($login) = @_;
986 1391
992 $cf::PLAYER{$login} = $self; 1397 $cf::PLAYER{$login} = $self;
993 1398
994 $self 1399 $self
995} 1400}
996 1401
1402=item $player->send_msg ($channel, $msg, $color, [extra...])
1403
1404=cut
1405
1406sub send_msg {
1407 my $ns = shift->ns
1408 or return;
1409 $ns->send_msg (@_);
1410}
1411
997=item $pl->quit_character 1412=item $pl->quit_character
998 1413
999Nukes the player without looking back. If logged in, the connection will 1414Nukes the player without looking back. If logged in, the connection will
1000be destroyed. May block for a long time. 1415be destroyed. May block for a long time.
1001 1416
1002=cut 1417=cut
1003 1418
1004sub quit_character { 1419sub quit_character {
1005 my ($pl) = @_; 1420 my ($pl) = @_;
1421
1422 my $name = $pl->ob->name;
1006 1423
1007 $pl->{deny_save} = 1; 1424 $pl->{deny_save} = 1;
1008 $pl->password ("*"); # this should lock out the player until we nuked the dir 1425 $pl->password ("*"); # this should lock out the player until we nuked the dir
1009 1426
1010 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1427 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1015 my $path = playerdir $pl; 1432 my $path = playerdir $pl;
1016 my $temp = "$path~$cf::RUNTIME~deleting~"; 1433 my $temp = "$path~$cf::RUNTIME~deleting~";
1017 aio_rename $path, $temp; 1434 aio_rename $path, $temp;
1018 delete $cf::PLAYER{$pl->ob->name}; 1435 delete $cf::PLAYER{$pl->ob->name};
1019 $pl->destroy; 1436 $pl->destroy;
1437
1438 my $prefix = qr<^~\Q$name\E/>;
1439
1440 # nuke player maps
1441 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1442
1020 IO::AIO::aio_rmtree $temp; 1443 IO::AIO::aio_rmtree $temp;
1444}
1445
1446=item $pl->kick
1447
1448Kicks a player out of the game. This destroys the connection.
1449
1450=cut
1451
1452sub kick {
1453 my ($pl, $kicker) = @_;
1454
1455 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1456 $pl->killer ("kicked");
1457 $pl->ns->destroy;
1021} 1458}
1022 1459
1023=item cf::player::list_logins 1460=item cf::player::list_logins
1024 1461
1025Returns am arrayref of all valid playernames in the system, can take a 1462Returns am arrayref of all valid playernames in the system, can take a
1026while and may block, so not sync_job-capable, ever. 1463while and may block, so not sync_job-capable, ever.
1027 1464
1028=cut 1465=cut
1029 1466
1030sub list_logins { 1467sub list_logins {
1031 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir 1468 my $dirs = aio_readdir $PLAYERDIR
1032 or return []; 1469 or return [];
1033 1470
1034 my @logins; 1471 my @logins;
1035 1472
1036 for my $login (@$dirs) { 1473 for my $login (@$dirs) {
1474 my $path = path $login;
1475
1476 # a .pst is a dead give-away for a valid player
1477 unless (-e "$path.pst") {
1037 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next; 1478 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038 aio_read $fh, 0, 512, my $buf, 0 or next; 1479 aio_read $fh, 0, 512, my $buf, 0 or next;
1039 $buf !~ /^password -------------$/m or next; # official not-valid tag 1480 $buf !~ /^password -------------$/m or next; # official not-valid tag
1481 }
1040 1482
1041 utf8::decode $login; 1483 utf8::decode $login;
1042 push @logins, $login; 1484 push @logins, $login;
1043 } 1485 }
1044 1486
1052 1494
1053=cut 1495=cut
1054 1496
1055sub maps($) { 1497sub maps($) {
1056 my ($pl) = @_; 1498 my ($pl) = @_;
1499
1500 $pl = ref $pl ? $pl->ob->name : $pl;
1057 1501
1058 my $files = aio_readdir playerdir $pl 1502 my $files = aio_readdir playerdir $pl
1059 or return; 1503 or return;
1060 1504
1061 my @paths; 1505 my @paths;
1063 for (@$files) { 1507 for (@$files) {
1064 utf8::decode $_; 1508 utf8::decode $_;
1065 next if /\.(?:pl|pst)$/; 1509 next if /\.(?:pl|pst)$/;
1066 next unless /^$PATH_SEP/o; 1510 next unless /^$PATH_SEP/o;
1067 1511
1068 s/\.map$//; 1512 push @paths, cf::map::normalise "~$pl/$_";
1069 push @paths, "~" . $pl->ob->name . "/" . $_;
1070 } 1513 }
1071 1514
1072 \@paths 1515 \@paths
1073} 1516}
1074 1517
1518=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
1519
1520Expand crossfire pod fragments into protocol xml.
1521
1522=cut
1523
1524sub expand_cfpod {
1525 ((my $self), (local $_)) = @_;
1526
1527 # escape & and <
1528 s/&/&amp;/g;
1529 s/(?<![BIUGHT])</&lt;/g;
1530
1531 # this is buggy, it needs to properly take care of nested <'s
1532
1533 1 while
1534 # replace B<>, I<>, U<> etc.
1535 s/B<([^\>]*)>/<b>$1<\/b>/
1536 || s/I<([^\>]*)>/<i>$1<\/i>/
1537 || s/U<([^\>]*)>/<u>$1<\/u>/
1538 || s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
1539 # replace G<male|female> tags
1540 || s{G<([^>|]*)\|([^>]*)>}{
1541 $self->gender ? $2 : $1
1542 }ge
1543 # replace H<hint text>
1544 || s{H<([^\>]*)>}
1545 {
1546 ("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
1547 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1548 "")
1549 [$self->{hintmode}]
1550 }ge;
1551
1552 # create single paragraphs (very hackish)
1553 s/(?<=\S)\n(?=\w)/ /g;
1554
1555 # compress some whitespace
1556 s/\s+\n/\n/g; # ws line-ends
1557 s/\n\n+/\n/g; # double lines
1558 s/^\n+//; # beginning lines
1559 s/\n+$//; # ending lines
1560
1561 $_
1562}
1563
1564sub hintmode {
1565 $_[0]{hintmode} = $_[1] if @_ > 1;
1566 $_[0]{hintmode}
1567}
1568
1075=item $player->ext_reply ($msgid, $msgtype, %msg) 1569=item $player->ext_reply ($msgid, @msg)
1076 1570
1077Sends an ext reply to the player. 1571Sends an ext reply to the player.
1078 1572
1079=cut 1573=cut
1080 1574
1081sub ext_reply($$$%) { 1575sub ext_reply($$@) {
1082 my ($self, $id, %msg) = @_; 1576 my ($self, $id, @msg) = @_;
1083 1577
1084 $msg{msgid} = $id; 1578 $self->ns->ext_reply ($id, @msg)
1085
1086 $self->send ("ext " . cf::to_json \%msg);
1087} 1579}
1088 1580
1089package cf; 1581=item $player->ext_msg ($type, @msg)
1582
1583Sends an ext event to the client.
1584
1585=cut
1586
1587sub ext_msg($$@) {
1588 my ($self, $type, @msg) = @_;
1589
1590 $self->ns->ext_msg ($type, @msg);
1591}
1592
1593=head3 cf::region
1594
1595=over 4
1596
1597=cut
1598
1599package cf::region;
1600
1601=item cf::region::find_by_path $path
1602
1603Tries to decuce the likely region for a map knowing only its path.
1604
1605=cut
1606
1607sub find_by_path($) {
1608 my ($path) = @_;
1609
1610 my ($match, $specificity);
1611
1612 for my $region (list) {
1613 if ($region->{match} && $path =~ $region->{match}) {
1614 ($match, $specificity) = ($region, $region->specificity)
1615 if $region->specificity > $specificity;
1616 }
1617 }
1618
1619 $match
1620}
1090 1621
1091=back 1622=back
1092
1093 1623
1094=head3 cf::map 1624=head3 cf::map
1095 1625
1096=over 4 1626=over 4
1097 1627
1101 1631
1102use Fcntl; 1632use Fcntl;
1103use Coro::AIO; 1633use Coro::AIO;
1104 1634
1105use overload 1635use overload
1106 '""' => \&as_string; 1636 '""' => \&as_string,
1637 fallback => 1;
1107 1638
1108our $MAX_RESET = 3600; 1639our $MAX_RESET = 3600;
1109our $DEFAULT_RESET = 3000; 1640our $DEFAULT_RESET = 3000;
1110 1641
1111sub generate_random_map { 1642sub generate_random_map {
1112 my ($self, $rmp) = @_; 1643 my ($self, $rmp) = @_;
1113
1114 # mit "rum" bekleckern, nicht 1644 # mit "rum" bekleckern, nicht
1115 $self->_create_random_map ( 1645 $self->_create_random_map (
1116 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1646 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1647 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1118 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1648 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1125 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1655 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126 (cf::region::find $rmp->{region}), $rmp->{custom} 1656 (cf::region::find $rmp->{region}), $rmp->{custom}
1127 ) 1657 )
1128} 1658}
1129 1659
1660=item cf::map->register ($regex, $prio)
1661
1662Register a handler for the map path matching the given regex at the
1663givne priority (higher is better, built-in handlers have priority 0, the
1664default).
1665
1666=cut
1667
1130sub register { 1668sub register {
1131 my (undef, $regex) = @_; 1669 my (undef, $regex, $prio) = @_;
1132 my $pkg = caller; 1670 my $pkg = caller;
1133 1671
1134 no strict; 1672 no strict;
1135 push @{"$pkg\::ISA"}, __PACKAGE__; 1673 push @{"$pkg\::ISA"}, __PACKAGE__;
1136 1674
1137 $EXT_MAP{$pkg} = qr<$regex>; 1675 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138} 1676}
1139 1677
1140# also paths starting with '/' 1678# also paths starting with '/'
1141$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1679$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1680
1681sub thawer_merge {
1682 my ($self, $merge) = @_;
1683
1684 # we have to keep some variables in memory intact
1685 local $self->{path};
1686 local $self->{load_path};
1687
1688 $self->SUPER::thawer_merge ($merge);
1689}
1142 1690
1143sub normalise { 1691sub normalise {
1144 my ($path, $base) = @_; 1692 my ($path, $base) = @_;
1693
1694 $path = "$path"; # make sure its a string
1695
1696 $path =~ s/\.map$//;
1145 1697
1146 # map plan: 1698 # map plan:
1147 # 1699 #
1148 # /! non-realised random map exit (special hack!) 1700 # /! non-realised random map exit (special hack!)
1149 # {... are special paths that are not being touched 1701 # {... are special paths that are not being touched
1177 1729
1178 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1730 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179 1731
1180 $path = normalise $path, $base; 1732 $path = normalise $path, $base;
1181 1733
1182 for my $pkg (keys %EXT_MAP) { 1734 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183 if ($path =~ $EXT_MAP{$pkg}) { 1735 if ($path =~ $EXT_MAP{$pkg}[1]) {
1184 my $self = bless cf::map::new, $pkg; 1736 my $self = bless cf::map::new, $pkg;
1185 $self->{path} = $path; $self->path ($path); 1737 $self->{path} = $path; $self->path ($path);
1186 $self->init; # pass $1 etc. 1738 $self->init; # pass $1 etc.
1187 return $self; 1739 return $self;
1188 } 1740 }
1189 } 1741 }
1190 1742
1191 Carp::carp "unable to resolve path '$path'."; 1743 Carp::cluck "unable to resolve path '$path' (base '$base').";
1192 () 1744 ()
1193} 1745}
1194 1746
1195sub init { 1747sub init {
1196 my ($self) = @_; 1748 my ($self) = @_;
1211 1763
1212# the original (read-only) location 1764# the original (read-only) location
1213sub load_path { 1765sub load_path {
1214 my ($self) = @_; 1766 my ($self) = @_;
1215 1767
1216 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1768 "$MAPDIR/$self->{path}.map"
1217} 1769}
1218 1770
1219# the temporary/swap location 1771# the temporary/swap location
1220sub save_path { 1772sub save_path {
1221 my ($self) = @_; 1773 my ($self) = @_;
1222 1774
1223 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1775 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1224 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1776 "$TMPDIR/$path.map"
1225} 1777}
1226 1778
1227# the unique path, undef == no special unique path 1779# the unique path, undef == no special unique path
1228sub uniq_path { 1780sub uniq_path {
1229 my ($self) = @_; 1781 my ($self) = @_;
1230 1782
1231 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1783 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1232 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path 1784 "$UNIQUEDIR/$path"
1233} 1785}
1234 1786
1235# and all this just because we cannot iterate over 1787# and all this just because we cannot iterate over
1236# all maps in C++... 1788# all maps in C++...
1237sub change_all_map_light { 1789sub change_all_map_light {
1239 1791
1240 $_->change_map_light ($change) 1792 $_->change_map_light ($change)
1241 for grep $_->outdoor, values %cf::MAP; 1793 for grep $_->outdoor, values %cf::MAP;
1242} 1794}
1243 1795
1796sub decay_objects {
1797 my ($self) = @_;
1798
1799 return if $self->{deny_reset};
1800
1801 $self->do_decay_objects;
1802}
1803
1244sub unlink_save { 1804sub unlink_save {
1245 my ($self) = @_; 1805 my ($self) = @_;
1246 1806
1247 utf8::encode (my $save = $self->save_path); 1807 utf8::encode (my $save = $self->save_path);
1248 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save; 1808 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst"; 1809 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250} 1810}
1251 1811
1252sub load_header_from($) { 1812sub load_header_from($) {
1253 my ($self, $path) = @_; 1813 my ($self, $path) = @_;
1254 1814
1255 utf8::encode $path; 1815 utf8::encode $path;
1256 aio_open $path, O_RDONLY, 0 1816 my $f = new_from_file cf::object::thawer $path
1257 or return; 1817 or return;
1258 1818
1259 $self->_load_header ($path) 1819 $self->_load_header ($f)
1260 or return; 1820 or return;
1261 1821
1822 local $MAP_LOADING{$self->{path}} = $self;
1823 $f->resolve_delayed_derefs;
1824
1262 $self->{load_path} = $path; 1825 $self->{load_path} = $path;
1263 1826
1264 1 1827 1
1265} 1828}
1266 1829
1267sub load_orig { 1830sub load_header_orig {
1268 my ($self) = @_; 1831 my ($self) = @_;
1269 1832
1270 $self->load_header_from ($self->load_path) 1833 $self->load_header_from ($self->load_path)
1271} 1834}
1272 1835
1273sub load_temp { 1836sub load_header_temp {
1274 my ($self) = @_; 1837 my ($self) = @_;
1275 1838
1276 $self->load_header_from ($self->save_path) 1839 $self->load_header_from ($self->save_path)
1840}
1841
1842sub prepare_temp {
1843 my ($self) = @_;
1844
1845 $self->last_access ((delete $self->{last_access})
1846 || $cf::RUNTIME); #d#
1847 # safety
1848 $self->{instantiate_time} = $cf::RUNTIME
1849 if $self->{instantiate_time} > $cf::RUNTIME;
1850}
1851
1852sub prepare_orig {
1853 my ($self) = @_;
1854
1855 $self->{load_original} = 1;
1856 $self->{instantiate_time} = $cf::RUNTIME;
1857 $self->last_access ($cf::RUNTIME);
1858 $self->instantiate;
1277} 1859}
1278 1860
1279sub load_header { 1861sub load_header {
1280 my ($self) = @_; 1862 my ($self) = @_;
1281 1863
1282 if ($self->load_temp) { 1864 if ($self->load_header_temp) {
1283 $self->last_access ((delete $self->{last_access}) 1865 $self->prepare_temp;
1284 || $cf::RUNTIME); #d#
1285 # safety
1286 $self->{instantiate_time} = $cf::RUNTIME
1287 if $self->{instantiate_time} > $cf::RUNTIME;
1288 } else { 1866 } else {
1289 $self->load_orig 1867 $self->load_header_orig
1290 or return; 1868 or return;
1291 1869 $self->prepare_orig;
1292 $self->{load_original} = 1;
1293 $self->{instantiate_time} = $cf::RUNTIME;
1294 $self->last_access ($cf::RUNTIME);
1295 $self->instantiate;
1296 } 1870 }
1871
1872 $self->{deny_reset} = 1
1873 if $self->no_reset;
1874
1875 $self->default_region (cf::region::find_by_path $self->{path})
1876 unless $self->default_region;
1297 1877
1298 1 1878 1
1299} 1879}
1300 1880
1301sub find; 1881sub find;
1302sub find { 1882sub find {
1303 my ($path, $origin) = @_; 1883 my ($path, $origin) = @_;
1304 1884
1305 $path = normalise $path, $origin && $origin->path; 1885 $path = normalise $path, $origin && $origin->path;
1306 1886
1887 cf::lock_wait "map_data:$path";#d#remove
1307 cf::lock_wait "map_find:$path"; 1888 cf::lock_wait "map_find:$path";
1308 1889
1309 $cf::MAP{$path} || do { 1890 $cf::MAP{$path} || do {
1310 my $guard = cf::lock_acquire "map_find:$path"; 1891 my $guard1 = cf::lock_acquire "map_find:$path";
1892 my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1893
1311 my $map = new_from_path cf::map $path 1894 my $map = new_from_path cf::map $path
1312 or return; 1895 or return;
1313 1896
1314 $map->{last_save} = $cf::RUNTIME; 1897 $map->{last_save} = $cf::RUNTIME;
1315 1898
1316 $map->load_header 1899 $map->load_header
1317 or return; 1900 or return;
1318 1901
1319 if ($map->should_reset) { 1902 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1903 # doing this can freeze the server in a sync job, obviously
1904 #$cf::WAIT_FOR_TICK->wait;
1905 undef $guard1;
1906 undef $guard2;
1320 $map->reset; 1907 $map->reset;
1321 undef $guard;
1322 $map = find $path 1908 return find $path;
1323 or return;
1324 } 1909 }
1325 1910
1326 $cf::MAP{$path} = $map 1911 $cf::MAP{$path} = $map
1327 } 1912 }
1328} 1913}
1914
1915sub pre_load { }
1916sub post_load { }
1329 1917
1330sub load { 1918sub load {
1331 my ($self) = @_; 1919 my ($self) = @_;
1332 1920
1921 local $self->{deny_reset} = 1; # loading can take a long time
1922
1333 my $path = $self->{path}; 1923 my $path = $self->{path};
1924
1925 {
1334 my $guard = cf::lock_acquire "map_load:$path"; 1926 my $guard = cf::lock_acquire "map_data:$path";
1335 1927
1928 return unless $self->valid;
1336 return if $self->in_memory != cf::MAP_SWAPPED; 1929 return unless $self->in_memory == cf::MAP_SWAPPED;
1337 1930
1338 $self->in_memory (cf::MAP_LOADING); 1931 $self->in_memory (cf::MAP_LOADING);
1339 1932
1340 $self->alloc; 1933 $self->alloc;
1341 $self->_load_objects ($self->{load_path}, 1) 1934
1935 $self->pre_load;
1936 cf::cede_to_tick;
1937
1938 my $f = new_from_file cf::object::thawer $self->{load_path};
1939 $f->skip_block;
1940 $self->_load_objects ($f)
1342 or return; 1941 or return;
1343 1942
1344 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1943 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1345 if delete $self->{load_original}; 1944 if delete $self->{load_original};
1346 1945
1347 if (my $uniq = $self->uniq_path) { 1946 if (my $uniq = $self->uniq_path) {
1348 utf8::encode $uniq; 1947 utf8::encode $uniq;
1349 if (aio_open $uniq, O_RDONLY, 0) { 1948 unless (aio_stat $uniq) {
1949 if (my $f = new_from_file cf::object::thawer $uniq) {
1350 $self->clear_unique_items; 1950 $self->clear_unique_items;
1351 $self->_load_objects ($uniq, 0); 1951 $self->_load_objects ($f);
1952 $f->resolve_delayed_derefs;
1953 }
1352 } 1954 }
1353 } 1955 }
1354 1956
1355 Coro::cede; 1957 $f->resolve_delayed_derefs;
1356 1958
1959 cf::cede_to_tick;
1357 # now do the right thing for maps 1960 # now do the right thing for maps
1358 $self->link_multipart_objects; 1961 $self->link_multipart_objects;
1359
1360 unless ($self->{deny_activate}) {
1361 $self->decay_objects;
1362 $self->fix_auto_apply;
1363 $self->update_buttons;
1364 Coro::cede;
1365 $self->set_darkness_map;
1366 $self->difficulty ($self->estimate_difficulty) 1962 $self->difficulty ($self->estimate_difficulty)
1367 unless $self->difficulty; 1963 unless $self->difficulty;
1368 Coro::cede; 1964 cf::cede_to_tick;
1965
1966 unless ($self->{deny_activate}) {
1967 $self->decay_objects;
1968 $self->fix_auto_apply;
1969 $self->update_buttons;
1970 cf::cede_to_tick;
1971 $self->set_darkness_map;
1972 cf::cede_to_tick;
1369 $self->activate; 1973 $self->activate;
1370 } 1974 }
1371 1975
1976 $self->{last_save} = $cf::RUNTIME;
1977 $self->last_access ($cf::RUNTIME);
1978
1372 $self->in_memory (cf::MAP_IN_MEMORY); 1979 $self->in_memory (cf::MAP_IN_MEMORY);
1980 }
1981
1982 $self->post_load;
1373} 1983}
1374 1984
1375sub customise_for { 1985sub customise_for {
1376 my ($self, $ob) = @_; 1986 my ($self, $ob) = @_;
1377 1987
1378 return find "~" . $ob->name . "/" . $self->{path} 1988 return find "~" . $ob->name . "/" . $self->{path}
1379 if $self->per_player; 1989 if $self->per_player;
1380 1990
1991# return find "?party/" . $ob->name . "/" . $self->{path}
1992# if $self->per_party;
1993
1381 $self 1994 $self
1382} 1995}
1383 1996
1384# find and load all maps in the 3x3 area around a map 1997# find and load all maps in the 3x3 area around a map
1385sub load_diag { 1998sub load_neighbours {
1386 my ($map) = @_; 1999 my ($map) = @_;
1387 2000
1388 my @diag; # diagonal neighbours 2001 my @neigh; # diagonal neighbours
1389 2002
1390 for (0 .. 3) { 2003 for (0 .. 3) {
1391 my $neigh = $map->tile_path ($_) 2004 my $neigh = $map->tile_path ($_)
1392 or next; 2005 or next;
1393 $neigh = find $neigh, $map 2006 $neigh = find $neigh, $map
1394 or next; 2007 or next;
1395 $neigh->load; 2008 $neigh->load;
1396 2009
2010 push @neigh,
1397 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh], 2011 [$neigh->tile_path (($_ + 3) % 4), $neigh],
1398 [$neigh->tile_path (($_ + 1) % 4), $neigh]; 2012 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1399 } 2013 }
1400 2014
1401 for (@diag) { 2015 for (grep defined $_->[0], @neigh) {
2016 my ($path, $origin) = @$_;
1402 my $neigh = find @$_ 2017 my $neigh = find $path, $origin
1403 or next; 2018 or next;
1404 $neigh->load; 2019 $neigh->load;
1405 } 2020 }
1406} 2021}
1407 2022
1412} 2027}
1413 2028
1414sub do_load_sync { 2029sub do_load_sync {
1415 my ($map) = @_; 2030 my ($map) = @_;
1416 2031
2032 cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
2033 if $Coro::current == $Coro::main;
2034
1417 cf::sync_job { $map->load }; 2035 cf::sync_job { $map->load };
1418} 2036}
1419 2037
1420our %MAP_PREFETCH; 2038our %MAP_PREFETCH;
1421our $MAP_PREFETCHER = Coro::async { 2039our $MAP_PREFETCHER = undef;
1422 while () {
1423 for my $path (keys %MAP_PREFETCH) {
1424 my $map = find $path
1425 or next;
1426 $map->load;
1427
1428 delete $MAP_PREFETCH{$path};
1429 }
1430 Coro::schedule;
1431 }
1432};
1433 2040
1434sub find_async { 2041sub find_async {
1435 my ($path, $origin) = @_; 2042 my ($path, $origin, $load) = @_;
1436 2043
1437 $path = normalise $path, $origin && $origin->{path}; 2044 $path = normalise $path, $origin && $origin->{path};
1438 2045
1439 if (my $map = $cf::MAP{$path}) { 2046 if (my $map = $cf::MAP{$path}) {
1440 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 2047 return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
2048 }
2049
2050 $MAP_PREFETCH{$path} |= $load;
2051
2052 $MAP_PREFETCHER ||= cf::async {
2053 $Coro::current->{desc} = "map prefetcher";
2054
2055 while (%MAP_PREFETCH) {
2056 while (my ($k, $v) = each %MAP_PREFETCH) {
2057 if (my $map = find $k) {
2058 $map->load if $v;
2059 }
2060
2061 delete $MAP_PREFETCH{$k};
2062 }
2063 }
2064 undef $MAP_PREFETCHER;
1441 } 2065 };
1442
1443 $MAP_PREFETCH{$path} = 0;
1444 $MAP_PREFETCHER->ready; 2066 $MAP_PREFETCHER->prio (6);
1445 2067
1446 () 2068 ()
1447} 2069}
1448 2070
1449sub save { 2071sub save {
1450 my ($self) = @_; 2072 my ($self) = @_;
1451 2073
1452 my $lock = cf::lock_acquire "map_data:" . $self->path; 2074 my $lock = cf::lock_acquire "map_data:$self->{path}";
1453 2075
1454 $self->{last_save} = $cf::RUNTIME; 2076 $self->{last_save} = $cf::RUNTIME;
1455 2077
1456 return unless $self->dirty; 2078 return unless $self->dirty;
1457 2079
1463 return if $self->{deny_save}; 2085 return if $self->{deny_save};
1464 2086
1465 local $self->{last_access} = $self->last_access;#d# 2087 local $self->{last_access} = $self->last_access;#d#
1466 2088
1467 cf::async { 2089 cf::async {
2090 $Coro::current->{desc} = "map player save";
1468 $_->contr->save for $self->players; 2091 $_->contr->save for $self->players;
1469 }; 2092 };
1470 2093
1471 if ($uniq) { 2094 if ($uniq) {
1472 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 2095 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1480 my ($self) = @_; 2103 my ($self) = @_;
1481 2104
1482 # save first because save cedes 2105 # save first because save cedes
1483 $self->save; 2106 $self->save;
1484 2107
1485 my $lock = cf::lock_acquire "map_data:" . $self->path; 2108 my $lock = cf::lock_acquire "map_data:$self->{path}";
1486 2109
1487 return if $self->players; 2110 return if $self->players;
1488 return if $self->in_memory != cf::MAP_IN_MEMORY; 2111 return if $self->in_memory != cf::MAP_IN_MEMORY;
1489 return if $self->{deny_save}; 2112 return if $self->{deny_save};
1490 2113
2114 $self->in_memory (cf::MAP_SWAPPED);
2115
2116 $self->deactivate;
2117 $_->clear_links_to ($self) for values %cf::MAP;
1491 $self->clear; 2118 $self->clear;
1492 $self->in_memory (cf::MAP_SWAPPED);
1493} 2119}
1494 2120
1495sub reset_at { 2121sub reset_at {
1496 my ($self) = @_; 2122 my ($self) = @_;
1497 2123
1498 # TODO: safety, remove and allow resettable per-player maps 2124 # TODO: safety, remove and allow resettable per-player maps
1499 return 1e99 if $self->isa ("ext::map_per_player");
1500 return 1e99 if $self->{deny_reset}; 2125 return 1e99 if $self->{deny_reset};
1501 2126
1502 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 2127 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 2128 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504 2129
1509 my ($self) = @_; 2134 my ($self) = @_;
1510 2135
1511 $self->reset_at <= $cf::RUNTIME 2136 $self->reset_at <= $cf::RUNTIME
1512} 2137}
1513 2138
1514sub rename {
1515 my ($self, $new_path) = @_;
1516
1517 normalise $new_path;
1518
1519 $self->unlink_save;
1520
1521 delete $cf::MAP{$self->path};
1522 $self->{path} = $new_path; $self->path ($self->{path});
1523 $cf::MAP{$self->path} = $self;
1524
1525 $self->save;
1526}
1527
1528sub reset { 2139sub reset {
1529 my ($self) = @_; 2140 my ($self) = @_;
1530 2141
1531 my $lock = cf::lock_acquire "map_data:$self->{path}"; 2142 my $lock = cf::lock_acquire "map_data:$self->{path}";
1532 2143
1533 return if $self->players; 2144 return if $self->players;
1534 return if $self->isa ("ext::map_per_player");#d#
1535 2145
1536 warn "resetting map ", $self->path;#d# 2146 warn "resetting map ", $self->path;
2147
2148 $self->in_memory (cf::MAP_SWAPPED);
2149
2150 # need to save uniques path
2151 unless ($self->{deny_save}) {
2152 my $uniq = $self->uniq_path; utf8::encode $uniq;
2153
2154 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2155 if $uniq;
2156 }
1537 2157
1538 delete $cf::MAP{$self->path}; 2158 delete $cf::MAP{$self->path};
1539 2159
1540 $self->in_memory (cf::MAP_SWAPPED); 2160 $self->deactivate;
2161 $_->clear_links_to ($self) for values %cf::MAP;
1541 $self->clear; 2162 $self->clear;
1542
1543 $_->clear_links_to ($self) for values %cf::MAP;
1544 2163
1545 $self->unlink_save; 2164 $self->unlink_save;
1546 $self->destroy; 2165 $self->destroy;
1547} 2166}
1548 2167
1549my $nuke_counter = "aaaa"; 2168my $nuke_counter = "aaaa";
1550 2169
1551sub nuke { 2170sub nuke {
1552 my ($self) = @_; 2171 my ($self) = @_;
1553 2172
2173 {
2174 my $lock = cf::lock_acquire "map_data:$self->{path}";
2175
2176 delete $cf::MAP{$self->path};
2177
2178 $self->unlink_save;
2179
2180 bless $self, "cf::map";
2181 delete $self->{deny_reset};
1554 $self->{deny_save} = 1; 2182 $self->{deny_save} = 1;
1555 $self->reset_timeout (1); 2183 $self->reset_timeout (1);
1556 $self->rename ("{nuke}/" . ($nuke_counter++)); 2184 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2185
2186 $cf::MAP{$self->path} = $self;
2187 }
2188
1557 $self->reset; # polite request, might not happen 2189 $self->reset; # polite request, might not happen
2190}
2191
2192=item $maps = cf::map::tmp_maps
2193
2194Returns an arrayref with all map paths of currently instantiated and saved
2195maps. May block.
2196
2197=cut
2198
2199sub tmp_maps() {
2200 [
2201 map {
2202 utf8::decode $_;
2203 /\.map$/
2204 ? normalise $_
2205 : ()
2206 } @{ aio_readdir $TMPDIR or [] }
2207 ]
2208}
2209
2210=item $maps = cf::map::random_maps
2211
2212Returns an arrayref with all map paths of currently instantiated and saved
2213random maps. May block.
2214
2215=cut
2216
2217sub random_maps() {
2218 [
2219 map {
2220 utf8::decode $_;
2221 /\.map$/
2222 ? normalise "?random/$_"
2223 : ()
2224 } @{ aio_readdir $RANDOMDIR or [] }
2225 ]
1558} 2226}
1559 2227
1560=item cf::map::unique_maps 2228=item cf::map::unique_maps
1561 2229
1562Returns an arrayref of paths of all shared maps that have 2230Returns an arrayref of paths of all shared maps that have
1563instantiated unique items. May block. 2231instantiated unique items. May block.
1564 2232
1565=cut 2233=cut
1566 2234
1567sub unique_maps() { 2235sub unique_maps() {
1568 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir 2236 [
1569 or return; 2237 map {
1570
1571 my @paths;
1572
1573 for (@$files) {
1574 utf8::decode $_; 2238 utf8::decode $_;
1575 next if /\.pst$/;
1576 next unless /^$PATH_SEP/o;
1577
1578 s/\.map$//; 2239 /\.map$/
1579 push @paths, $_; 2240 ? normalise $_
2241 : ()
2242 } @{ aio_readdir $UNIQUEDIR or [] }
1580 } 2243 ]
1581
1582 \@paths
1583} 2244}
1584 2245
1585package cf; 2246package cf;
1586 2247
1587=back 2248=back
1605 map { $_, inv_recursive_ $_->inv } @_ 2266 map { $_, inv_recursive_ $_->inv } @_
1606} 2267}
1607 2268
1608sub inv_recursive { 2269sub inv_recursive {
1609 inv_recursive_ inv $_[0] 2270 inv_recursive_ inv $_[0]
2271}
2272
2273=item $ref = $ob->ref
2274
2275creates and returns a persistent reference to an objetc that can be stored as a string.
2276
2277=item $ob = cf::object::deref ($refstring)
2278
2279returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2280even if the object actually exists. May block.
2281
2282=cut
2283
2284sub deref {
2285 my ($ref) = @_;
2286
2287 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2288 my ($uuid, $name) = ($1, $2);
2289 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2290 or return;
2291 $pl->ob->uuid eq $uuid
2292 or return;
2293
2294 $pl->ob
2295 } else {
2296 warn "$ref: cannot resolve object reference\n";
2297 undef
2298 }
1610} 2299}
1611 2300
1612package cf; 2301package cf;
1613 2302
1614=back 2303=back
1633 2322
1634 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2323 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635 2324
1636 if ($self->{record_replies}) { 2325 if ($self->{record_replies}) {
1637 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2326 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2327
1638 } else { 2328 } else {
2329 my $pl = $self->contr;
2330
2331 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2332 my $dialog = $pl->{npc_dialog};
2333 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2334
2335 } else {
1639 $msg = $npc->name . " says: $msg" if $npc; 2336 $msg = $npc->name . " says: $msg" if $npc;
1640 $self->message ($msg, $flags); 2337 $self->message ($msg, $flags);
2338 }
1641 } 2339 }
2340}
2341
2342=item $object->send_msg ($channel, $msg, $color, [extra...])
2343
2344=cut
2345
2346sub cf::object::send_msg {
2347 my $pl = shift->contr
2348 or return;
2349 $pl->send_msg (@_);
1642} 2350}
1643 2351
1644=item $player_object->may ("access") 2352=item $player_object->may ("access")
1645 2353
1646Returns wether the given player is authorized to access resource "access" 2354Returns wether the given player is authorized to access resource "access"
1678=cut 2386=cut
1679 2387
1680sub link_map { 2388sub link_map {
1681 unless ($LINK_MAP) { 2389 unless ($LINK_MAP) {
1682 $LINK_MAP = cf::map::find "{link}" 2390 $LINK_MAP = cf::map::find "{link}"
1683 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 2391 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684 $LINK_MAP->load; 2392 $LINK_MAP->load;
1685 } 2393 }
1686 2394
1687 $LINK_MAP 2395 $LINK_MAP
1688} 2396}
1693 $self->deactivate_recursive; 2401 $self->deactivate_recursive;
1694 2402
1695 return if UNIVERSAL::isa $self->map, "ext::map_link"; 2403 return if UNIVERSAL::isa $self->map, "ext::map_link";
1696 2404
1697 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 2405 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698 if $self->map; 2406 if $self->map && $self->map->{path} ne "{link}";
1699 2407
1700 $self->enter_map ($LINK_MAP || link_map, 20, 20); 2408 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1701} 2409}
1702 2410
1703sub cf::object::player::leave_link { 2411sub cf::object::player::leave_link {
1704 my ($self, $map, $x, $y) = @_; 2412 my ($self, $map, $x, $y) = @_;
2413
2414 return unless $self->contr->active;
1705 2415
1706 my $link_pos = delete $self->{_link_pos}; 2416 my $link_pos = delete $self->{_link_pos};
1707 2417
1708 unless ($map) { 2418 unless ($map) {
1709 # restore original map position 2419 # restore original map position
1723 # use -1 or undef as default coordinates, not 0, 0 2433 # use -1 or undef as default coordinates, not 0, 0
1724 ($x, $y) = ($map->enter_x, $map->enter_y) 2434 ($x, $y) = ($map->enter_x, $map->enter_y)
1725 if $x <=0 && $y <= 0; 2435 if $x <=0 && $y <= 0;
1726 2436
1727 $map->load; 2437 $map->load;
1728 $map->load_diag; 2438 $map->load_neighbours;
1729 2439
1730 return unless $self->contr->active; 2440 return unless $self->contr->active;
1731 $self->activate_recursive; 2441 $self->activate_recursive;
2442
2443 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1732 $self->enter_map ($map, $x, $y); 2444 $self->enter_map ($map, $x, $y);
1733} 2445}
1734 2446
1735cf::player->attach ( 2447=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1736 on_logout => sub {
1737 my ($pl) = @_;
1738 2448
1739 # abort map switching before logout 2449Moves the player to the given map-path and coordinates by first freezing
1740 if ($pl->ob->{_link_pos}) { 2450her, loading and preparing them map, calling the provided $check callback
1741 cf::sync_job { 2451that has to return the map if sucecssful, and then unfreezes the player on
1742 $pl->ob->leave_link 2452the new (success) or old (failed) map position. In either case, $done will
1743 }; 2453be called at the end of this process.
1744 }
1745 },
1746 on_login => sub {
1747 my ($pl) = @_;
1748 2454
1749 # try to abort aborted map switching on player login :)
1750 # should happen only on crashes
1751 if ($pl->ob->{_link_pos}) {
1752 $pl->ob->enter_link;
1753 (async {
1754 # we need this sleep as the login has a concurrent enter_exit running
1755 # and this sleep increases chances of the player not ending up in scorn
1756 $pl->ob->reply (undef,
1757 "There was an internal problem at your last logout, "
1758 . "the server will try to bring you to your intended destination in a second.",
1759 cf::NDI_RED);
1760 Coro::Timer::sleep 1;
1761 $pl->ob->leave_link;
1762 })->prio (2);
1763 }
1764 },
1765);
1766
1767=item $player_object->goto ($path, $x, $y)
1768
1769=cut 2455=cut
2456
2457our $GOTOGEN;
1770 2458
1771sub cf::object::player::goto { 2459sub cf::object::player::goto {
1772 my ($self, $path, $x, $y) = @_; 2460 my ($self, $path, $x, $y, $check, $done) = @_;
2461
2462 # do generation counting so two concurrent goto's will be executed in-order
2463 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773 2464
1774 $self->enter_link; 2465 $self->enter_link;
1775 2466
1776 (async { 2467 (async {
1777 my $map = cf::map::find $path; 2468 $Coro::current->{desc} = "player::goto $path $x $y";
2469
2470 # *tag paths override both path and x|y
2471 if ($path =~ /^\*(.*)$/) {
2472 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2473 my $ob = $obs[rand @obs];
2474
2475 # see if we actually can go there
2476 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2477 $ob = $obs[rand @obs];
2478 } else {
2479 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2480 }
2481 # else put us there anyways for now #d#
2482
2483 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2484 } else {
2485 ($path, $x, $y) = (undef, undef, undef);
2486 }
2487 }
2488
2489 my $map = eval {
2490 my $map = defined $path ? cf::map::find $path : undef;
2491
2492 if ($map) {
1778 $map = $map->customise_for ($self) if $map; 2493 $map = $map->customise_for ($self);
1779 2494 $map = $check->($map) if $check && $map;
1780# warn "entering ", $map->path, " at ($x, $y)\n" 2495 } else {
1781# if $map;
1782
1783 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 2496 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2497 }
1784 2498
2499 $map
2500 };
2501
2502 if ($@) {
2503 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2504 LOG llevError | logBacktrace, Carp::longmess $@;
2505 }
2506
2507 if ($gen == $self->{_goto_generation}) {
2508 delete $self->{_goto_generation};
1785 $self->leave_link ($map, $x, $y); 2509 $self->leave_link ($map, $x, $y);
2510 }
2511
2512 $done->() if $done;
1786 })->prio (1); 2513 })->prio (1);
1787} 2514}
1788 2515
1789=item $player_object->enter_exit ($exit_object) 2516=item $player_object->enter_exit ($exit_object)
1790 2517
1792 2519
1793sub parse_random_map_params { 2520sub parse_random_map_params {
1794 my ($spec) = @_; 2521 my ($spec) = @_;
1795 2522
1796 my $rmp = { # defaults 2523 my $rmp = { # defaults
1797 xsize => 10, 2524 xsize => (cf::rndm 15, 40),
1798 ysize => 10, 2525 ysize => (cf::rndm 15, 40),
2526 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2527 #layout => string,
1799 }; 2528 };
1800 2529
1801 for (split /\n/, $spec) { 2530 for (split /\n/, $spec) {
1802 my ($k, $v) = split /\s+/, $_, 2; 2531 my ($k, $v) = split /\s+/, $_, 2;
1803 2532
1807 $rmp 2536 $rmp
1808} 2537}
1809 2538
1810sub prepare_random_map { 2539sub prepare_random_map {
1811 my ($exit) = @_; 2540 my ($exit) = @_;
2541
2542 my $guard = cf::lock_acquire "exit_prepare:$exit";
1812 2543
1813 # all this does is basically replace the /! path by 2544 # all this does is basically replace the /! path by
1814 # a new random map path (?random/...) with a seed 2545 # a new random map path (?random/...) with a seed
1815 # that depends on the exit object 2546 # that depends on the exit object
1816 2547
1817 my $rmp = parse_random_map_params $exit->msg; 2548 my $rmp = parse_random_map_params $exit->msg;
1818 2549
1819 if ($exit->map) { 2550 if ($exit->map) {
1820 $rmp->{region} = $exit->map->region_name; 2551 $rmp->{region} = $exit->region->name;
1821 $rmp->{origin_map} = $exit->map->path; 2552 $rmp->{origin_map} = $exit->map->path;
1822 $rmp->{origin_x} = $exit->x; 2553 $rmp->{origin_x} = $exit->x;
1823 $rmp->{origin_y} = $exit->y; 2554 $rmp->{origin_y} = $exit->y;
1824 } 2555 }
1825 2556
1826 $rmp->{random_seed} ||= $exit->random_seed; 2557 $rmp->{random_seed} ||= $exit->random_seed;
1827 2558
1828 my $data = cf::to_json $rmp; 2559 my $data = cf::to_json $rmp;
1829 my $md5 = Digest::MD5::md5_hex $data; 2560 my $md5 = Digest::MD5::md5_hex $data;
2561 my $meta = "$RANDOMDIR/$md5.meta";
1830 2562
1831 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 2563 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832 aio_write $fh, 0, (length $data), $data, 0; 2564 aio_write $fh, 0, (length $data), $data, 0;
2565 undef $fh;
2566 aio_rename "$meta~", $meta;
1833 2567
1834 $exit->slaying ("?random/$md5"); 2568 $exit->slaying ("?random/$md5");
1835 $exit->msg (undef); 2569 $exit->msg (undef);
1836 } 2570 }
1837} 2571}
1839sub cf::object::player::enter_exit { 2573sub cf::object::player::enter_exit {
1840 my ($self, $exit) = @_; 2574 my ($self, $exit) = @_;
1841 2575
1842 return unless $self->type == cf::PLAYER; 2576 return unless $self->type == cf::PLAYER;
1843 2577
2578 if ($exit->slaying eq "/!") {
2579 #TODO: this should de-fi-ni-te-ly not be a sync-job
2580 # the problem is that $exit might not survive long enough
2581 # so it needs to be done right now, right here
2582 cf::sync_job { prepare_random_map $exit };
2583 }
2584
2585 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2586 my $hp = $exit->stats->hp;
2587 my $sp = $exit->stats->sp;
2588
1844 $self->enter_link; 2589 $self->enter_link;
1845 2590
2591 # if exit is damned, update players death & WoR home-position
2592 $self->contr->savebed ($slaying, $hp, $sp)
2593 if $exit->flag (FLAG_DAMNED);
2594
1846 (async { 2595 (async {
2596 $Coro::current->{desc} = "enter_exit $slaying $hp $sp";
2597
1847 $self->deactivate_recursive; # just to be sure 2598 $self->deactivate_recursive; # just to be sure
1848 unless (eval { 2599 unless (eval {
1849 prepare_random_map $exit 2600 $self->goto ($slaying, $hp, $sp);
1850 if $exit->slaying eq "/!";
1851
1852 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1853 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1854 2601
1855 1; 2602 1;
1856 }) { 2603 }) {
1857 $self->message ("Something went wrong deep within the crossfire server. " 2604 $self->message ("Something went wrong deep within the crossfire server. "
1858 . "I'll try to bring you back to the map you were before. " 2605 . "I'll try to bring you back to the map you were before. "
1859 . "Please report this to the dungeon master!", 2606 . "Please report this to the dungeon master!",
1860 cf::NDI_UNIQUE | cf::NDI_RED); 2607 cf::NDI_UNIQUE | cf::NDI_RED);
1861 2608
1862 warn "ERROR in enter_exit: $@"; 2609 warn "ERROR in enter_exit: $@";
1863 $self->leave_link; 2610 $self->leave_link;
1864 } 2611 }
1865 })->prio (1); 2612 })->prio (1);
1878 2625
1879sub cf::client::send_drawinfo { 2626sub cf::client::send_drawinfo {
1880 my ($self, $text, $flags) = @_; 2627 my ($self, $text, $flags) = @_;
1881 2628
1882 utf8::encode $text; 2629 utf8::encode $text;
1883 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2630 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884} 2631}
1885 2632
2633=item $client->send_msg ($channel, $msg, $color, [extra...])
2634
2635Send a drawinfo or msg packet to the client, formatting the msg for the
2636client if neccessary. C<$type> should be a string identifying the type of
2637the message, with C<log> being the default. If C<$color> is negative, suppress
2638the message unless the client supports the msg packet.
2639
2640=cut
2641
2642our %CHANNEL = (
2643 "c/identify" => {
2644 id => "infobox",
2645 title => "Identify",
2646 reply => undef,
2647 tooltip => "Items recently identified",
2648 },
2649 "c/examine" => {
2650 id => "infobox",
2651 title => "Examine",
2652 reply => undef,
2653 tooltip => "Signs and other items you examined",
2654 },
2655 "c/lookat" => {
2656 id => "infobox",
2657 title => "Look",
2658 reply => undef,
2659 tooltip => "What you saw there",
2660 },
2661);
2662
2663sub cf::client::send_msg {
2664 my ($self, $channel, $msg, $color, @extra) = @_;
2665
2666 $msg = $self->pl->expand_cfpod ($msg);
2667
2668 $color &= cf::NDI_CLIENT_MASK; # just in case...
2669
2670 # check predefined channels, for the benefit of C
2671 if ($CHANNEL{$channel}) {
2672 $channel = $CHANNEL{$channel};
2673
2674 $self->ext_msg (channel_info => $channel)
2675 if $self->can_msg;
2676
2677 $channel = $channel->{id};
2678
2679 } elsif (ref $channel) {
2680 # send meta info to client, if not yet sent
2681 unless (exists $self->{channel}{$channel->{id}}) {
2682 $self->{channel}{$channel->{id}} = $channel;
2683 $self->ext_msg (channel_info => $channel)
2684 if $self->can_msg;
2685 }
2686
2687 $channel = $channel->{id};
2688 }
2689
2690 return unless @extra || length $msg;
2691
2692 if ($self->can_msg) {
2693 # default colour, mask it out
2694 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2695 if $color & cf::NDI_DEF;
2696
2697 $self->send_packet ("msg " . $self->{json_coder}->encode (
2698 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
2699 } else {
2700 if ($color >= 0) {
2701 # replace some tags by gcfclient-compatible ones
2702 for ($msg) {
2703 1 while
2704 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2705 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2706 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2707 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2708 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2709 }
2710
2711 $color &= cf::NDI_COLOR_MASK;
2712
2713 utf8::encode $msg;
2714
2715 if (0 && $msg =~ /\[/) {
2716 # COMMAND/INFO
2717 $self->send_packet ("drawextinfo $color 10 8 $msg")
2718 } else {
2719 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2720 $self->send_packet ("drawinfo $color $msg")
2721 }
2722 }
2723 }
2724}
2725
2726=item $client->ext_msg ($type, @msg)
2727
2728Sends an ext event to the client.
2729
2730=cut
2731
2732sub cf::client::ext_msg($$@) {
2733 my ($self, $type, @msg) = @_;
2734
2735 if ($self->extcmd == 2) {
2736 $self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2737 } elsif ($self->extcmd == 1) { # TODO: remove
2738 push @msg, msgtype => "event_$type";
2739 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2740 }
2741}
2742
2743=item $client->ext_reply ($msgid, @msg)
2744
2745Sends an ext reply to the client.
2746
2747=cut
2748
2749sub cf::client::ext_reply($$@) {
2750 my ($self, $id, @msg) = @_;
2751
2752 if ($self->extcmd == 2) {
2753 $self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2754 } elsif ($self->extcmd == 1) {
2755 #TODO: version 1, remove
2756 unshift @msg, msgtype => "reply", msgid => $id;
2757 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2758 }
2759}
1886 2760
1887=item $success = $client->query ($flags, "text", \&cb) 2761=item $success = $client->query ($flags, "text", \&cb)
1888 2762
1889Queues a query to the client, calling the given callback with 2763Queues a query to the client, calling the given callback with
1890the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2764the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1891C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. 2765C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1892 2766
1893Queries can fail, so check the return code. Or don't, as queries will become 2767Queries can fail, so check the return code. Or don't, as queries will
1894reliable at some point in the future. 2768become reliable at some point in the future.
1895 2769
1896=cut 2770=cut
1897 2771
1898sub cf::client::query { 2772sub cf::client::query {
1899 my ($self, $flags, $text, $cb) = @_; 2773 my ($self, $flags, $text, $cb) = @_;
1907 utf8::encode $text; 2781 utf8::encode $text;
1908 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 2782 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909 2783
1910 $self->send_packet ($self->{query_queue}[0][0]) 2784 $self->send_packet ($self->{query_queue}[0][0])
1911 if @{ $self->{query_queue} } == 1; 2785 if @{ $self->{query_queue} } == 1;
2786
2787 1
1912} 2788}
1913 2789
1914cf::client->attach ( 2790cf::client->attach (
2791 on_connect => sub {
2792 my ($ns) = @_;
2793
2794 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
2795 },
1915 on_reply => sub { 2796 on_reply => sub {
1916 my ($ns, $msg) = @_; 2797 my ($ns, $msg) = @_;
1917 2798
1918 # this weird shuffling is so that direct followup queries 2799 # this weird shuffling is so that direct followup queries
1919 # get handled first 2800 # get handled first
1920 my $queue = delete $ns->{query_queue} 2801 my $queue = delete $ns->{query_queue}
1921 or return; # be conservative, not sure how that can happen, but we saw a crash here 2802 or return; # be conservative, not sure how that can happen, but we saw a crash here
1922 2803
1923 (shift @$queue)->[1]->($msg); 2804 (shift @$queue)->[1]->($msg);
2805 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924 2806
1925 push @{ $ns->{query_queue} }, @$queue; 2807 push @{ $ns->{query_queue} }, @$queue;
1926 2808
1927 if (@{ $ns->{query_queue} } == @$queue) { 2809 if (@{ $ns->{query_queue} } == @$queue) {
1928 if (@$queue) { 2810 if (@$queue) {
1930 } else { 2812 } else {
1931 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; 2813 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932 } 2814 }
1933 } 2815 }
1934 }, 2816 },
2817 on_exticmd => sub {
2818 my ($ns, $buf) = @_;
2819
2820 my $msg = eval { $ns->{json_coder}->decode ($buf) };
2821
2822 if (ref $msg) {
2823 my ($type, $reply, @payload) =
2824 "ARRAY" eq ref $msg
2825 ? @$msg
2826 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
2827
2828 my @reply;
2829
2830 if (my $cb = $EXTICMD{$type}) {
2831 @reply = $cb->($ns, @payload);
2832 }
2833
2834 $ns->ext_reply ($reply, @reply)
2835 if $reply;
2836
2837 } else {
2838 warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
2839 }
2840
2841 cf::override;
2842 },
1935); 2843);
1936 2844
1937=item $client->async (\&cb) 2845=item $client->async (\&cb)
1938 2846
1939Create a new coroutine, running the specified callback. The coroutine will 2847Create a new coroutine, running the specified callback. The coroutine will
1980our $safe = new Safe "safe"; 2888our $safe = new Safe "safe";
1981our $safe_hole = new Safe::Hole; 2889our $safe_hole = new Safe::Hole;
1982 2890
1983$SIG{FPE} = 'IGNORE'; 2891$SIG{FPE} = 'IGNORE';
1984 2892
1985$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 2893$safe->permit_only (Opcode::opset qw(
2894 :base_core :base_mem :base_orig :base_math
2895 grepstart grepwhile mapstart mapwhile
2896 sort time
2897));
1986 2898
1987# here we export the classes and methods available to script code 2899# here we export the classes and methods available to script code
1988 2900
1989=pod 2901=pod
1990 2902
1991The following fucntions and emthods are available within a safe environment: 2903The following functions and methods are available within a safe environment:
1992 2904
1993 cf::object contr pay_amount pay_player map 2905 cf::object
2906 contr pay_amount pay_player map x y force_find force_add destroy
2907 insert remove name archname title slaying race decrease_ob_nr
2908
1994 cf::object::player player 2909 cf::object::player
1995 cf::player peaceful 2910 player
1996 cf::map trigger 2911
2912 cf::player
2913 peaceful
2914
2915 cf::map
2916 trigger
1997 2917
1998=cut 2918=cut
1999 2919
2000for ( 2920for (
2001 ["cf::object" => qw(contr pay_amount pay_player map)], 2921 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
2922 insert remove inv name archname title slaying race
2923 decrease_ob_nr destroy)],
2002 ["cf::object::player" => qw(player)], 2924 ["cf::object::player" => qw(player)],
2003 ["cf::player" => qw(peaceful)], 2925 ["cf::player" => qw(peaceful)],
2004 ["cf::map" => qw(trigger)], 2926 ["cf::map" => qw(trigger)],
2005) { 2927) {
2006 no strict 'refs'; 2928 no strict 'refs';
2077=back 2999=back
2078 3000
2079=cut 3001=cut
2080 3002
2081############################################################################# 3003#############################################################################
3004# the server's init and main functions
2082 3005
2083=head2 EXTENSION DATABASE SUPPORT 3006sub load_facedata($) {
3007 my ($path) = @_;
2084 3008
2085Crossfire maintains a very simple database for extension use. It can 3009 # HACK to clear player env face cache, we need some signal framework
2086currently store anything that can be serialised using Storable, which 3010 # for this (global event?)
2087excludes objects. 3011 %ext::player_env::MUSIC_FACE_CACHE = ();
2088 3012
2089The parameter C<$family> should best start with the name of the extension 3013 my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090using it, it should be unique.
2091 3014
2092=over 4 3015 warn "loading facedata from $path\n";
2093 3016
2094=item $hashref = cf::db_get $family 3017 my $facedata;
3018 0 < aio_load $path, $facedata
3019 or die "$path: $!";
2095 3020
2096Return a hashref for use by the extension C<$family>, which can be 3021 $facedata = Coro::Storable::thaw $facedata;
2097modified. After modifications, you have to call C<cf::db_dirty> or
2098C<cf::db_sync>.
2099 3022
2100=item $value = cf::db_get $family => $key 3023 $facedata->{version} == 2
3024 or cf::cleanup "$path: version mismatch, cannot proceed.";
2101 3025
2102Returns a single value from the database 3026 # patch in the exptable
2103 3027 $facedata->{resource}{"res/exp_table"} = {
2104=item cf::db_put $family => $hashref 3028 type => FT_RSRC,
2105 3029 data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2106Stores the given family hashref into the database. Updates are delayed, if
2107you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109=item cf::db_put $family => $key => $value
2110
2111Stores the given C<$value> in the family hash. Updates are delayed, if you
2112want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114=item cf::db_dirty
2115
2116Marks the database as dirty, to be updated at a later time.
2117
2118=item cf::db_sync
2119
2120Immediately write the database to disk I<if it is dirty>.
2121
2122=cut
2123
2124our $DB;
2125
2126{
2127 my $path = cf::localdir . "/database.pst";
2128
2129 sub db_load() {
2130 $DB = stat $path ? Storable::retrieve $path : { };
2131 }
2132
2133 my $pid;
2134
2135 sub db_save() {
2136 waitpid $pid, 0 if $pid;
2137 if (0 == ($pid = fork)) {
2138 $DB->{_meta}{version} = 1;
2139 Storable::nstore $DB, "$path~";
2140 rename "$path~", $path;
2141 cf::_exit 0 if defined $pid;
2142 }
2143 }
2144
2145 my $dirty;
2146
2147 sub db_sync() {
2148 db_save if $dirty;
2149 undef $dirty;
2150 }
2151
2152 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153 db_sync;
2154 }); 3030 };
3031 cf::cede_to_tick;
2155 3032
2156 sub db_dirty() {
2157 $dirty = 1;
2158 $idle->start;
2159 } 3033 {
3034 my $faces = $facedata->{faceinfo};
2160 3035
2161 sub db_get($;$) { 3036 while (my ($face, $info) = each %$faces) {
2162 @_ >= 2 3037 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163 ? $DB->{$_[0]}{$_[1]} 3038 cf::face::set_visibility $idx, $info->{visibility};
2164 : ($DB->{$_[0]} ||= { }) 3039 cf::face::set_magicmap $idx, $info->{magicmap};
2165 } 3040 cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
3041 cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2166 3042
2167 sub db_put($$;$) { 3043 cf::cede_to_tick;
2168 if (@_ >= 3) {
2169 $DB->{$_[0]}{$_[1]} = $_[2];
2170 } else {
2171 $DB->{$_[0]} = $_[1];
2172 }
2173 db_dirty;
2174 }
2175
2176 cf::global->attach (
2177 prio => 10000,
2178 on_cleanup => sub {
2179 db_sync;
2180 }, 3044 }
2181 );
2182}
2183 3045
2184############################################################################# 3046 while (my ($face, $info) = each %$faces) {
2185# the server's main() 3047 next unless $info->{smooth};
3048 my $idx = cf::face::find $face
3049 or next;
3050 if (my $smooth = cf::face::find $info->{smooth}) {
3051 cf::face::set_smooth $idx, $smooth;
3052 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3053 } else {
3054 warn "smooth face '$info->{smooth}' not found for face '$face'";
3055 }
2186 3056
2187sub cfg_load { 3057 cf::cede_to_tick;
3058 }
3059 }
3060
3061 {
3062 my $anims = $facedata->{animinfo};
3063
3064 while (my ($anim, $info) = each %$anims) {
3065 cf::anim::set $anim, $info->{frames}, $info->{facings};
3066 cf::cede_to_tick;
3067 }
3068
3069 cf::anim::invalidate_all; # d'oh
3070 }
3071
3072 {
3073 # TODO: for gcfclient pleasure, we should give resources
3074 # that gcfclient doesn't grok a >10000 face index.
3075 my $res = $facedata->{resource};
3076
3077 my $soundconf = delete $res->{"res/sound.conf"};
3078
3079 while (my ($name, $info) = each %$res) {
3080 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3081 my $data;
3082
3083 if ($info->{type} & 1) {
3084 # prepend meta info
3085
3086 my $meta = $enc->encode ({
3087 name => $name,
3088 %{ $info->{meta} || {} },
3089 });
3090
3091 $data = pack "(w/a*)*", $meta, $info->{data};
3092 } else {
3093 $data = $info->{data};
3094 }
3095
3096 cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
3097 cf::face::set_type $idx, $info->{type};
3098
3099 cf::cede_to_tick;
3100 }
3101
3102 if ($soundconf) {
3103 $soundconf = $enc->decode (delete $soundconf->{data});
3104
3105 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3106 my $sound = $soundconf->{compat}[$_]
3107 or next;
3108
3109 my $face = cf::face::find "sound/$sound->[1]";
3110 cf::sound::set $sound->[0] => $face;
3111 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3112 }
3113
3114 while (my ($k, $v) = each %{$soundconf->{event}}) {
3115 my $face = cf::face::find "sound/$v";
3116 cf::sound::set $k => $face;
3117 }
3118 }
3119 }
3120
3121 1
3122}
3123
3124register_exticmd fx_want => sub {
3125 my ($ns, $want) = @_;
3126
3127 while (my ($k, $v) = each %$want) {
3128 $ns->fx_want ($k, $v);
3129 }
3130};
3131
3132sub reload_regions {
3133 # HACK to clear player env face cache, we need some signal framework
3134 # for this (global event?)
3135 %ext::player_env::MUSIC_FACE_CACHE = ();
3136
3137 load_resource_file "$MAPDIR/regions"
3138 or die "unable to load regions file\n";
3139
3140 for (cf::region::list) {
3141 $_->{match} = qr/$_->{match}/
3142 if exists $_->{match};
3143 }
3144}
3145
3146sub reload_facedata {
3147 load_facedata "$DATADIR/facedata"
3148 or die "unable to load facedata\n";
3149}
3150
3151sub reload_archetypes {
3152 load_resource_file "$DATADIR/archetypes"
3153 or die "unable to load archetypes\n";
3154 #d# NEED to laod twice to resolve forward references
3155 # this really needs to be done in an extra post-pass
3156 # (which needs to be synchronous, so solve it differently)
3157 load_resource_file "$DATADIR/archetypes"
3158 or die "unable to load archetypes\n";
3159}
3160
3161sub reload_treasures {
3162 load_resource_file "$DATADIR/treasures"
3163 or die "unable to load treasurelists\n";
3164}
3165
3166sub reload_resources {
3167 warn "reloading resource files...\n";
3168
3169 reload_regions;
3170 reload_facedata;
3171 #reload_archetypes;#d#
3172 reload_archetypes;
3173 reload_treasures;
3174
3175 warn "finished reloading resource files\n";
3176}
3177
3178sub init {
3179 reload_resources;
3180}
3181
3182sub reload_config {
2188 open my $fh, "<:utf8", cf::confdir . "/config" 3183 open my $fh, "<:utf8", "$CONFDIR/config"
2189 or return; 3184 or return;
2190 3185
2191 local $/; 3186 local $/;
2192 *CFG = YAML::Syck::Load <$fh>; 3187 *CFG = YAML::Syck::Load <$fh>;
2193 3188
2207 3202
2208sub main { 3203sub main {
2209 # we must not ever block the main coroutine 3204 # we must not ever block the main coroutine
2210 local $Coro::idle = sub { 3205 local $Coro::idle = sub {
2211 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3206 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3207 (async {
3208 $Coro::current->{desc} = "IDLE BUG HANDLER";
2212 async { Event::one_event }; 3209 Event::one_event;
3210 })->prio (Coro::PRIO_MAX);
2213 }; 3211 };
2214 3212
2215 cfg_load; 3213 reload_config;
2216 db_load; 3214 db_init;
2217 load_extensions; 3215 load_extensions;
3216
3217 $TICK_WATCHER->start;
2218 Event::loop; 3218 Event::loop;
2219} 3219}
2220 3220
2221############################################################################# 3221#############################################################################
2222# initialisation and cleanup 3222# initialisation and cleanup
2223 3223
2224# install some emergency cleanup handlers 3224# install some emergency cleanup handlers
2225BEGIN { 3225BEGIN {
2226 for my $signal (qw(INT HUP TERM)) { 3226 for my $signal (qw(INT HUP TERM)) {
2227 Event->signal ( 3227 Event->signal (
3228 reentrant => 0,
2228 data => WF_AUTOCANCEL, 3229 data => WF_AUTOCANCEL,
2229 signal => $signal, 3230 signal => $signal,
3231 prio => 0,
2230 cb => sub { 3232 cb => sub {
2231 cf::cleanup "SIG$signal"; 3233 cf::cleanup "SIG$signal";
2232 }, 3234 },
2233 ); 3235 );
2234 } 3236 }
3237}
3238
3239sub write_runtime {
3240 my $runtime = "$LOCALDIR/runtime";
3241
3242 # first touch the runtime file to show we are still running:
3243 # the fsync below can take a very very long time.
3244
3245 IO::AIO::aio_utime $runtime, undef, undef;
3246
3247 my $guard = cf::lock_acquire "write_runtime";
3248
3249 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
3250 or return;
3251
3252 my $value = $cf::RUNTIME + 90 + 10;
3253 # 10 is the runtime save interval, for a monotonic clock
3254 # 60 allows for the watchdog to kill the server.
3255
3256 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3257 and return;
3258
3259 # always fsync - this file is important
3260 aio_fsync $fh
3261 and return;
3262
3263 # touch it again to show we are up-to-date
3264 aio_utime $fh, undef, undef;
3265
3266 close $fh
3267 or return;
3268
3269 aio_rename "$runtime~", $runtime
3270 and return;
3271
3272 warn "runtime file written.\n";
3273
3274 1
2235} 3275}
2236 3276
2237sub emergency_save() { 3277sub emergency_save() {
2238 my $freeze_guard = cf::freeze_mainloop; 3278 my $freeze_guard = cf::freeze_mainloop;
2239 3279
2245 # and maps saved/destroyed asynchronously. 3285 # and maps saved/destroyed asynchronously.
2246 warn "begin emergency player save\n"; 3286 warn "begin emergency player save\n";
2247 for my $login (keys %cf::PLAYER) { 3287 for my $login (keys %cf::PLAYER) {
2248 my $pl = $cf::PLAYER{$login} or next; 3288 my $pl = $cf::PLAYER{$login} or next;
2249 $pl->valid or next; 3289 $pl->valid or next;
3290 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250 $pl->save; 3291 $pl->save;
2251 } 3292 }
2252 warn "end emergency player save\n"; 3293 warn "end emergency player save\n";
2253 3294
2254 warn "begin emergency map save\n"; 3295 warn "begin emergency map save\n";
2256 my $map = $cf::MAP{$path} or next; 3297 my $map = $cf::MAP{$path} or next;
2257 $map->valid or next; 3298 $map->valid or next;
2258 $map->save; 3299 $map->save;
2259 } 3300 }
2260 warn "end emergency map save\n"; 3301 warn "end emergency map save\n";
3302
3303 warn "begin emergency database checkpoint\n";
3304 BDB::db_env_txn_checkpoint $DB_ENV;
3305 warn "end emergency database checkpoint\n";
2261 }; 3306 };
2262 3307
2263 warn "leave emergency perl save\n"; 3308 warn "leave emergency perl save\n";
2264} 3309}
2265 3310
3311sub post_cleanup {
3312 my ($make_core) = @_;
3313
3314 warn Carp::longmess "post_cleanup backtrace"
3315 if $make_core;
3316}
3317
2266sub reload() { 3318sub do_reload_perl() {
2267 # can/must only be called in main 3319 # can/must only be called in main
2268 if ($Coro::current != $Coro::main) { 3320 if ($Coro::current != $Coro::main) {
2269 warn "can only reload from main coroutine\n"; 3321 warn "can only reload from main coroutine";
2270 return; 3322 return;
2271 } 3323 }
2272 3324
2273 warn "reloading..."; 3325 warn "reloading...";
2274 3326
2275 warn "freezing server"; 3327 warn "entering sync_job";
2276 my $guard = freeze_mainloop; 3328
3329 cf::sync_job {
3330 cf::write_runtime; # external watchdog should not bark
2277 cf::emergency_save; 3331 cf::emergency_save;
3332 cf::write_runtime; # external watchdog should not bark
2278 3333
2279 warn "sync database to disk"; 3334 warn "syncing database to disk";
2280 cf::db_sync; 3335 BDB::db_env_txn_checkpoint $DB_ENV;
2281 IO::AIO::flush;
2282 3336
2283 eval {
2284 # if anything goes wrong in here, we should simply crash as we already saved 3337 # if anything goes wrong in here, we should simply crash as we already saved
2285 3338
2286 warn "cancel all watchers"; 3339 warn "cancelling all WF_AUTOCANCEL watchers";
2287 for (Event::all_watchers) { 3340 for (Event::all_watchers) {
2288 $_->cancel if $_->data & WF_AUTOCANCEL; 3341 $_->cancel if $_->data & WF_AUTOCANCEL;
2289 } 3342 }
2290 3343
3344 warn "flushing outstanding aio requests";
3345 for (;;) {
3346 BDB::flush;
3347 IO::AIO::flush;
3348 Coro::cede;
3349 last unless IO::AIO::nreqs || BDB::nreqs;
3350 warn "iterate...";
3351 }
3352
3353 ++$RELOAD;
3354
2291 warn "cancel all extension coros"; 3355 warn "cancelling all extension coros";
2292 $_->cancel for values %EXT_CORO; 3356 $_->cancel for values %EXT_CORO;
2293 %EXT_CORO = (); 3357 %EXT_CORO = ();
2294 3358
2295 warn "remove commands"; 3359 warn "removing commands";
2296 %COMMAND = (); 3360 %COMMAND = ();
2297 3361
2298 warn "remove ext commands"; 3362 warn "removing ext/exti commands";
2299 %EXTCMD = (); 3363 %EXTCMD = ();
3364 %EXTICMD = ();
2300 3365
2301 warn "unload/nuke all extensions"; 3366 warn "unloading/nuking all extensions";
2302 for my $pkg (@EXTS) { 3367 for my $pkg (@EXTS) {
2303 warn "... unloading $pkg"; 3368 warn "... unloading $pkg";
2304 3369
2305 if (my $cb = $pkg->can ("unload")) { 3370 if (my $cb = $pkg->can ("unload")) {
2306 eval { 3371 eval {
2311 3376
2312 warn "... nuking $pkg"; 3377 warn "... nuking $pkg";
2313 Symbol::delete_package $pkg; 3378 Symbol::delete_package $pkg;
2314 } 3379 }
2315 3380
2316 warn "unload all perl modules loaded from $LIBDIR"; 3381 warn "unloading all perl modules loaded from $LIBDIR";
2317 while (my ($k, $v) = each %INC) { 3382 while (my ($k, $v) = each %INC) {
2318 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 3383 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319 3384
2320 warn "removing <$k>"; 3385 warn "... unloading $k";
2321 delete $INC{$k}; 3386 delete $INC{$k};
2322 3387
2323 $k =~ s/\.pm$//; 3388 $k =~ s/\.pm$//;
2324 $k =~ s/\//::/g; 3389 $k =~ s/\//::/g;
2325 3390
2328 } 3393 }
2329 3394
2330 Symbol::delete_package $k; 3395 Symbol::delete_package $k;
2331 } 3396 }
2332 3397
2333 warn "get rid of safe::, as good as possible"; 3398 warn "getting rid of safe::, as good as possible";
2334 Symbol::delete_package "safe::$_" 3399 Symbol::delete_package "safe::$_"
2335 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3400 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336 3401
2337 warn "unload cf.pm \"a bit\""; 3402 warn "unloading cf.pm \"a bit\"";
2338 delete $INC{"cf.pm"}; 3403 delete $INC{"cf.pm"};
3404 delete $INC{"cf/pod.pm"};
2339 3405
2340 # don't, removes xs symbols, too, 3406 # don't, removes xs symbols, too,
2341 # and global variables created in xs 3407 # and global variables created in xs
2342 #Symbol::delete_package __PACKAGE__; 3408 #Symbol::delete_package __PACKAGE__;
2343 3409
3410 warn "unload completed, starting to reload now";
3411
2344 warn "reloading cf.pm"; 3412 warn "reloading cf.pm";
2345 require cf; 3413 require cf;
2346 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3414 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347 3415
2348 warn "load config and database again"; 3416 warn "loading config and database again";
2349 cf::cfg_load; 3417 cf::reload_config;
2350 cf::db_load;
2351 3418
2352 warn "load extensions"; 3419 warn "loading extensions";
2353 cf::load_extensions; 3420 cf::load_extensions;
2354 3421
2355 warn "reattach attachments to objects/players"; 3422 warn "reattaching attachments to objects/players";
2356 _global_reattach; 3423 _global_reattach; # objects, sockets
2357 warn "reattach attachments to maps"; 3424 warn "reattaching attachments to maps";
2358 reattach $_ for values %MAP; 3425 reattach $_ for values %MAP;
2359 }; 3426 warn "reattaching attachments to players";
3427 reattach $_ for values %PLAYER;
2360 3428
2361 if ($@) { 3429 warn "leaving sync_job";
3430
3431 1
3432 } or do {
2362 warn $@; 3433 warn $@;
2363 warn "error while reloading, exiting."; 3434 warn "error while reloading, exiting.";
2364 exit 1; 3435 exit 1;
2365 } 3436 };
2366 3437
2367 warn "reloaded"; 3438 warn "reloaded";
2368}; 3439};
2369 3440
3441our $RELOAD_WATCHER; # used only during reload
3442
3443sub reload_perl() {
3444 # doing reload synchronously and two reloads happen back-to-back,
3445 # coro crashes during coro_state_free->destroy here.
3446
3447 $RELOAD_WATCHER ||= Event->timer (
3448 reentrant => 0,
3449 after => 0,
3450 data => WF_AUTOCANCEL,
3451 cb => sub {
3452 do_reload_perl;
3453 undef $RELOAD_WATCHER;
3454 },
3455 );
3456}
3457
2370register_command "reload" => sub { 3458register_command "reload" => sub {
2371 my ($who, $arg) = @_; 3459 my ($who, $arg) = @_;
2372 3460
2373 if ($who->flag (FLAG_WIZ)) { 3461 if ($who->flag (FLAG_WIZ)) {
2374 $who->message ("start of reload.");
2375 reload;
2376 $who->message ("end of reload."); 3462 $who->message ("reloading server.");
3463 async {
3464 $Coro::current->{desc} = "perl_reload";
3465 reload_perl;
3466 };
2377 } 3467 }
2378}; 3468};
2379 3469
2380unshift @INC, $LIBDIR; 3470unshift @INC, $LIBDIR;
3471
3472my $bug_warning = 0;
3473
3474our @WAIT_FOR_TICK;
3475our @WAIT_FOR_TICK_BEGIN;
3476
3477sub wait_for_tick {
3478 return unless $TICK_WATCHER->is_active;
3479 return if $Coro::current == $Coro::main;
3480
3481 my $signal = new Coro::Signal;
3482 push @WAIT_FOR_TICK, $signal;
3483 $signal->wait;
3484}
3485
3486sub wait_for_tick_begin {
3487 return unless $TICK_WATCHER->is_active;
3488 return if $Coro::current == $Coro::main;
3489
3490 my $signal = new Coro::Signal;
3491 push @WAIT_FOR_TICK_BEGIN, $signal;
3492 $signal->wait;
3493}
2381 3494
2382$TICK_WATCHER = Event->timer ( 3495$TICK_WATCHER = Event->timer (
2383 reentrant => 0, 3496 reentrant => 0,
3497 parked => 1,
2384 prio => 0, 3498 prio => 0,
2385 at => $NEXT_TICK || $TICK, 3499 at => $NEXT_TICK || $TICK,
2386 data => WF_AUTOCANCEL, 3500 data => WF_AUTOCANCEL,
2387 cb => sub { 3501 cb => sub {
3502 if ($Coro::current != $Coro::main) {
3503 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3504 unless ++$bug_warning > 10;
3505 return;
3506 }
3507
2388 $NOW = Event::time; 3508 $NOW = $tick_start = Event::time;
2389 3509
2390 cf::server_tick; # one server iteration 3510 cf::server_tick; # one server iteration
3511
2391 $RUNTIME += $TICK; 3512 $RUNTIME += $TICK;
2392 $NEXT_TICK += $TICK; 3513 $NEXT_TICK += $TICK;
2393 3514
2394 $WAIT_FOR_TICK->broadcast; 3515 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 3516 $NEXT_RUNTIME_WRITE = $NOW + 10;
3517 Coro::async_pool {
3518 $Coro::current->{desc} = "runtime saver";
3519 write_runtime
3520 or warn "ERROR: unable to write runtime file: $!";
3521 };
3522 }
3523
3524 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3525 $sig->send;
3526 }
3527 while (my $sig = shift @WAIT_FOR_TICK) {
3528 $sig->send;
3529 }
3530
3531 $NOW = Event::time;
2396 3532
2397 # if we are delayed by four ticks or more, skip them all 3533 # if we are delayed by four ticks or more, skip them all
2398 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 3534 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2399 3535
2400 $TICK_WATCHER->at ($NEXT_TICK); 3536 $TICK_WATCHER->at ($NEXT_TICK);
2401 $TICK_WATCHER->start; 3537 $TICK_WATCHER->start;
3538
3539 $LOAD = ($NOW - $tick_start) / $TICK;
3540 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3541
3542 _post_tick;
2402 }, 3543 },
2403); 3544);
2404 3545
3546{
3547 BDB::min_parallel 8;
2405IO::AIO::max_poll_time $TICK * 0.2; 3548 BDB::max_poll_time $TICK * 0.1;
2406 3549 $BDB_POLL_WATCHER = Event->io (
2407Event->io ( 3550 reentrant => 0,
2408 fd => IO::AIO::poll_fileno, 3551 fd => BDB::poll_fileno,
2409 poll => 'r', 3552 poll => 'r',
2410 prio => 5, 3553 prio => 0,
2411 data => WF_AUTOCANCEL,
2412 cb => \&IO::AIO::poll_cb,
2413);
2414
2415Event->timer (
2416 data => WF_AUTOCANCEL, 3554 data => WF_AUTOCANCEL,
3555 cb => \&BDB::poll_cb,
3556 );
3557
3558 BDB::set_sync_prepare {
3559 my $status;
3560 my $current = $Coro::current;
3561 (
3562 sub {
3563 $status = $!;
3564 $current->ready; undef $current;
3565 },
3566 sub {
3567 Coro::schedule while defined $current;
3568 $! = $status;
3569 },
3570 )
3571 };
3572
3573 unless ($DB_ENV) {
3574 $DB_ENV = BDB::db_env_create;
3575 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
3576 | BDB::LOG_AUTOREMOVE, 1);
3577 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
3578 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
3579
3580 cf::sync_job {
3581 eval {
3582 BDB::db_env_open
3583 $DB_ENV,
3584 $BDBDIR,
3585 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3586 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3587 0666;
3588
3589 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3590 };
3591
3592 cf::cleanup "db_env_open(db): $@" if $@;
3593 };
3594 }
3595
3596 $BDB_DEADLOCK_WATCHER = Event->timer (
2417 after => 0, 3597 after => 3,
2418 interval => 10, 3598 interval => 1,
3599 hard => 1,
3600 prio => 0,
3601 data => WF_AUTOCANCEL,
2419 cb => sub { 3602 cb => sub {
2420 (Coro::unblock_sub { 3603 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2421 write_runtime 3604 },
2422 or warn "ERROR: unable to write runtime file: $!"; 3605 );
3606 $BDB_CHECKPOINT_WATCHER = Event->timer (
3607 after => 11,
3608 interval => 60,
3609 hard => 1,
3610 prio => 0,
3611 data => WF_AUTOCANCEL,
3612 cb => sub {
3613 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
3614 },
3615 );
3616 $BDB_TRICKLE_WATCHER = Event->timer (
3617 after => 5,
3618 interval => 10,
3619 hard => 1,
3620 prio => 0,
3621 data => WF_AUTOCANCEL,
3622 cb => sub {
3623 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
3624 },
3625 );
3626}
3627
3628{
3629 IO::AIO::min_parallel 8;
3630
3631 undef $Coro::AIO::WATCHER;
3632 IO::AIO::max_poll_time $TICK * 0.1;
3633 $AIO_POLL_WATCHER = Event->io (
3634 reentrant => 0,
3635 data => WF_AUTOCANCEL,
3636 fd => IO::AIO::poll_fileno,
3637 poll => 'r',
3638 prio => 0,
3639 cb => \&IO::AIO::poll_cb,
3640 );
3641}
3642
3643my $_log_backtrace;
3644
3645sub _log_backtrace {
3646 my ($msg, @addr) = @_;
3647
3648 $msg =~ s/\n//;
3649
3650 # limit the # of concurrent backtraces
3651 if ($_log_backtrace < 2) {
3652 ++$_log_backtrace;
3653 async {
3654 $Coro::current->{desc} = "abt $msg";
3655
3656 my @bt = fork_call {
3657 @addr = map { sprintf "%x", $_ } @addr;
3658 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3659 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3660 or die "addr2line: $!";
3661
3662 my @funcs;
3663 my @res = <$fh>;
3664 chomp for @res;
3665 while (@res) {
3666 my ($func, $line) = splice @res, 0, 2, ();
3667 push @funcs, "[$func] $line";
3668 }
3669
3670 @funcs
3671 };
3672
3673 LOG llevInfo, "[ABT] $msg\n";
3674 LOG llevInfo, "[ABT] $_\n" for @bt;
3675 --$_log_backtrace;
2423 })->(); 3676 };
3677 } else {
3678 LOG llevInfo, "[ABT] $msg\n";
3679 LOG llevInfo, "[ABT] [suppressed]\n";
2424 }, 3680 }
2425); 3681}
3682
3683# load additional modules
3684use cf::pod;
2426 3685
2427END { cf::emergency_save } 3686END { cf::emergency_save }
2428 3687
24291 36881
2430 3689

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