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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.210 by root, Mon Feb 12 01:32:49 2007 UTC vs.
Revision 1.550 by root, Fri May 14 22:56:47 2010 UTC

1#
2# This file is part of Deliantra, the Roguelike Realtime MMORPG.
3#
4# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5#
6# Deliantra is free software: you can redistribute it and/or modify it under
7# the terms of the Affero GNU General Public License as published by the
8# Free Software Foundation, either version 3 of the License, or (at your
9# option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the Affero GNU General Public License
17# and the GNU General Public License along with this program. If not, see
18# <http://www.gnu.org/licenses/>.
19#
20# The authors can be reached via e-mail to <support@deliantra.net>
21#
22
1package cf; 23package cf;
2 24
3use utf8; 25use common::sense;
4use strict;
5 26
6use Symbol; 27use Symbol;
7use List::Util; 28use List::Util;
8use Storable; 29use Socket;
30use EV;
9use Opcode; 31use Opcode;
10use Safe; 32use Safe;
11use Safe::Hole; 33use Safe::Hole;
34use Storable ();
35use Carp ();
12 36
37use Guard ();
13use Coro 3.5 (); 38use Coro ();
39use Coro::State;
40use Coro::Handle;
41use Coro::EV;
14use Coro::Event; 42use Coro::AnyEvent;
15use Coro::Timer; 43use Coro::Timer;
16use Coro::Signal; 44use Coro::Signal;
17use Coro::Semaphore; 45use Coro::Semaphore;
46use Coro::SemaphoreSet;
47use Coro::AnyEvent;
18use Coro::AIO; 48use Coro::AIO;
49use Coro::BDB 1.6;
50use Coro::Storable;
51use Coro::Util ();
19 52
53use JSON::XS 2.01 ();
20use BDB (); 54use BDB ();
21use Data::Dumper; 55use Data::Dumper;
22use Digest::MD5;
23use Fcntl; 56use Fcntl;
24use IO::AIO 2.32 ();
25use YAML::Syck (); 57use YAML::XS ();
58use IO::AIO ();
26use Time::HiRes; 59use Time::HiRes;
27use Compress::LZF; 60use Compress::LZF;
61use Digest::MD5 ();
28 62
63AnyEvent::detect;
64
65# configure various modules to our taste
66#
67$Storable::canonical = 1; # reduce rsync transfers
68Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
69
70$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
71
72# make sure c-lzf reinitialises itself
73Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 74Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30 75
31use Event; $Event::Eval = 1; # no idea why this is required, but it is 76# strictly for debugging
77$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32 78
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 79sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 80
35# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? 81our @ORIG_INC;
36$YAML::Syck::ImplicitUnicode = 1;
37
38$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39 82
40our %COMMAND = (); 83our %COMMAND = ();
41our %COMMAND_TIME = (); 84our %COMMAND_TIME = ();
42 85
43our @EXTS = (); # list of extension package names 86our @EXTS = (); # list of extension package names
44our %EXTCMD = (); 87our %EXTCMD = ();
88our %EXTICMD = ();
45our %EXT_CORO = (); # coroutines bound to extensions 89our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps 90our %EXT_MAP = (); # pluggable maps
47 91
92our $RELOAD; # number of reloads so far, non-zero while in reload
48our @EVENT; 93our @EVENT;
49our $LIBDIR = datadir . "/ext"; 94our @REFLECT; # set by XS
95our %REFLECT; # set by us
50 96
51our $TICK = MAX_TIME * 1e-6; 97our $CONFDIR = confdir;
52our $TICK_WATCHER; 98our $DATADIR = datadir;
53our $AIO_POLL_WATCHER; 99our $LIBDIR = "$DATADIR/ext";
54our $WRITE_RUNTIME_WATCHER; 100our $PODDIR = "$DATADIR/pod";
101our $MAPDIR = "$DATADIR/" . mapdir;
102our $LOCALDIR = localdir;
103our $TMPDIR = "$LOCALDIR/" . tmpdir;
104our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
105our $PLAYERDIR = "$LOCALDIR/" . playerdir;
106our $RANDOMDIR = "$LOCALDIR/random";
107our $BDBDIR = "$LOCALDIR/db";
108our $PIDFILE = "$LOCALDIR/pid";
109our $RUNTIMEFILE = "$LOCALDIR/runtime";
110
111our %RESOURCE; # unused
112
113our $OUTPUT_RATE_MIN = 3000;
114our $OUTPUT_RATE_MAX = 1000000;
115
116our $MAX_LINKS = 32; # how many chained exits to follow
117our $VERBOSE_IO = 1;
118
119our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
120our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55our $NEXT_TICK; 121our $NEXT_TICK;
56our $NOW;
57our $USE_FSYNC = 1; # use fsync to write maps - default off 122our $USE_FSYNC = 1; # use fsync to write maps - default on
58 123
124our $BDB_DEADLOCK_WATCHER;
125our $BDB_CHECKPOINT_WATCHER;
59our $BDB_POLL_WATCHER; 126our $BDB_TRICKLE_WATCHER;
60our $DB_ENV; 127our $DB_ENV;
128
129our @EXTRA_MODULES = qw(pod match mapscript incloader);
61 130
62our %CFG; 131our %CFG;
63 132
64our $UPTIME; $UPTIME ||= time; 133our $UPTIME; $UPTIME ||= time;
65our $RUNTIME; 134our $RUNTIME;
135our $NOW;
66 136
67our %PLAYER; # all users 137our (%PLAYER, %PLAYER_LOADING); # all users
68our %MAP; # all maps 138our (%MAP, %MAP_LOADING ); # all maps
69our $LINK_MAP; # the special {link} map, which is always available 139our $LINK_MAP; # the special {link} map, which is always available
70our $RANDOM_MAPS = cf::localdir . "/random";
71our $BDB_ENV_DIR = cf::localdir . "/db";
72
73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75 140
76# used to convert map paths into valid unix filenames by replacing / by ∕ 141# used to convert map paths into valid unix filenames by replacing / by ∕
77our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 142our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78 143
144our $LOAD; # a number between 0 (idle) and 1 (too many objects)
145our $LOADAVG; # same thing, but with alpha-smoothing
146our $JITTER; # average jitter
147our $TICK_START; # for load detecting purposes
148
149our @POST_INIT;
150
151our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
152our $REALLY_UNLOOP; # never set to true, please :)
153
79binmode STDOUT; 154binmode STDOUT;
80binmode STDERR; 155binmode STDERR;
81 156
82# read virtual server time, if available 157# read virtual server time, if available
83unless ($RUNTIME || !-e cf::localdir . "/runtime") { 158unless ($RUNTIME || !-e $RUNTIMEFILE) {
84 open my $fh, "<", cf::localdir . "/runtime" 159 open my $fh, "<", $RUNTIMEFILE
85 or die "unable to read runtime file: $!"; 160 or die "unable to read $RUNTIMEFILE file: $!";
86 $RUNTIME = <$fh> + 0.; 161 $RUNTIME = <$fh> + 0.;
87} 162}
88 163
89mkdir cf::localdir; 164eval "sub TICK() { $TICK } 1" or die;
90mkdir cf::localdir . "/" . cf::playerdir; 165
91mkdir cf::localdir . "/" . cf::tmpdir; 166mkdir $_
92mkdir cf::localdir . "/" . cf::uniquedir; 167 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
95 168
96our $EMERGENCY_POSITION; 169our $EMERGENCY_POSITION;
97 170
98sub cf::map::normalise; 171sub cf::map::normalise;
172
173sub in_main() {
174 $Coro::current == $Coro::main
175}
176
177#############################################################################
178
179%REFLECT = ();
180for (@REFLECT) {
181 my $reflect = JSON::XS::decode_json $_;
182 $REFLECT{$reflect->{class}} = $reflect;
183}
184
185# this is decidedly evil
186$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
99 187
100############################################################################# 188#############################################################################
101 189
102=head2 GLOBAL VARIABLES 190=head2 GLOBAL VARIABLES
103 191
110=item $cf::RUNTIME 198=item $cf::RUNTIME
111 199
112The time this server has run, starts at 0 and is increased by $cf::TICK on 200The time this server has run, starts at 0 and is increased by $cf::TICK on
113every server tick. 201every server tick.
114 202
115=item $cf::LIBDIR 203=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
204$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
205$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116 206
117The perl library directory, where extensions and cf-specific modules can 207Various directories - "/etc", read-only install directory, perl-library
118be found. It will be added to C<@INC> automatically. 208directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
209unique-items directory, player file directory, random maps directory and
210database environment.
119 211
120=item $cf::NOW 212=item $cf::NOW
121 213
122The time of the last (current) server tick. 214The time of the last (current) server tick.
123 215
124=item $cf::TICK 216=item $cf::TICK
125 217
126The interval between server ticks, in seconds. 218The interval between server ticks, in seconds.
127 219
220=item $cf::LOADAVG
221
222The current CPU load on the server (alpha-smoothed), as a value between 0
223(none) and 1 (overloaded), indicating how much time is spent on processing
224objects per tick. Healthy values are < 0.5.
225
226=item $cf::LOAD
227
228The raw value load value from the last tick.
229
128=item %cf::CFG 230=item %cf::CFG
129 231
130Configuration for the server, loaded from C</etc/crossfire/config>, or 232Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131from wherever your confdir points to. 233from wherever your confdir points to.
132 234
133=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE 235=item cf::wait_for_tick, cf::wait_for_tick_begin
134 236
135These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK) 237These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick 238returns directly I<after> the tick processing (and consequently, can only wake one thread
137processing has been done. Call C<< ->wait >> on them to maximise the 239per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138window of cpu time available, or simply to synchronise to the server tick. 240
241=cut
242
243sub wait_for_tick();
244sub wait_for_tick_begin();
245
246=item @cf::INVOKE_RESULTS
247
248This array contains the results of the last C<invoke ()> call. When
249C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
250that call.
251
252=item %cf::REFLECT
253
254Contains, for each (C++) class name, a hash reference with information
255about object members (methods, scalars, arrays and flags) and other
256metadata, which is useful for introspection.
139 257
140=back 258=back
141 259
142=cut 260=cut
143 261
144BEGIN { 262sub error(@) { LOG llevError, join "", @_ }
145 *CORE::GLOBAL::warn = sub { 263sub warn (@) { LOG llevWarn , join "", @_ }
264sub info (@) { LOG llevInfo , join "", @_ }
265sub debug(@) { LOG llevDebug, join "", @_ }
266sub trace(@) { LOG llevTrace, join "", @_ }
267
268$Coro::State::WARNHOOK = sub {
146 my $msg = join "", @_; 269 my $msg = join "", @_;
147 utf8::encode $msg;
148 270
149 $msg .= "\n" 271 $msg .= "\n"
150 unless $msg =~ /\n$/; 272 unless $msg =~ /\n$/;
151 273
274 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
275
152 LOG llevError, $msg; 276 LOG llevWarn, $msg;
153 }; 277};
154} 278
279$Coro::State::DIEHOOK = sub {
280 return unless $^S eq 0; # "eq", not "=="
281
282 error Carp::longmess $_[0];
283
284 if (in_main) {#d#
285 error "DIEHOOK called in main context, Coro bug?\n";#d#
286 return;#d#
287 }#d#
288
289 # kill coroutine otherwise
290 Coro::terminate
291};
155 292
156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 293@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 294@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 295@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 296@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 297@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
298@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 299@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162 300
163# we bless all objects into (empty) derived classes to force a method lookup 301# we bless all objects into (empty) derived classes to force a method lookup
164# within the Safe compartment. 302# within the Safe compartment.
165for my $pkg (qw( 303for my $pkg (qw(
166 cf::global cf::attachable 304 cf::global cf::attachable
167 cf::object cf::object::player 305 cf::object cf::object::player
168 cf::client cf::player 306 cf::client cf::player
169 cf::arch cf::living 307 cf::arch cf::living
308 cf::map cf::mapspace
170 cf::map cf::party cf::region 309 cf::party cf::region
171)) { 310)) {
172 no strict 'refs';
173 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 311 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174} 312}
175 313
176$Event::DIED = sub { 314$EV::DIED = sub {
177 warn "error in event callback: @_"; 315 Carp::cluck "error in event callback: @_";
178}; 316};
317
318#############################################################################
179 319
180=head2 UTILITY FUNCTIONS 320=head2 UTILITY FUNCTIONS
181 321
182=over 4 322=over 4
183 323
202 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 342 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203 $d 343 $d
204 } || "[unable to dump $_[0]: '$@']"; 344 } || "[unable to dump $_[0]: '$@']";
205} 345}
206 346
207use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209=item $ref = cf::from_json $json 347=item $ref = cf::decode_json $json
210 348
211Converts a JSON string into the corresponding perl data structure. 349Converts a JSON string into the corresponding perl data structure.
212 350
213=cut
214
215sub from_json($) {
216 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217 JSON::Syck::Load $_[0]
218}
219
220=item $json = cf::to_json $ref 351=item $json = cf::encode_json $ref
221 352
222Converts a perl data structure into its JSON representation. 353Converts a perl data structure into its JSON representation.
223 354
224=cut 355=cut
225 356
226sub to_json($) { 357our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs 358
228 JSON::Syck::Dump $_[0] 359sub encode_json($) { $json_coder->encode ($_[0]) }
360sub decode_json($) { $json_coder->decode ($_[0]) }
361
362=item $ref = cf::yaml_load $scalar
363
364Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
365
366=cut
367
368sub fork_call(&@);
369
370sub yaml_load($) {
371 fork_call { YAML::XS::Load $_[0] } @_
372}
373
374=item cf::post_init { BLOCK }
375
376Execute the given codeblock, I<after> all extensions have been (re-)loaded,
377but I<before> the server starts ticking again.
378
379The codeblock will have a single boolean argument to indicate whether this
380is a reload or not.
381
382=cut
383
384sub post_init(&) {
385 push @POST_INIT, shift;
386}
387
388sub _post_init {
389 trace "running post_init jobs";
390
391 # run them in parallel...
392
393 my @join;
394
395 while () {
396 push @join, map &Coro::async ($_, 0), @POST_INIT;
397 @POST_INIT = ();
398
399 @join or last;
400
401 (pop @join)->join;
402 }
229} 403}
230 404
231=item cf::lock_wait $string 405=item cf::lock_wait $string
232 406
233Wait until the given lock is available. See cf::lock_acquire. 407Wait until the given lock is available. See cf::lock_acquire.
234 408
235=item my $lock = cf::lock_acquire $string 409=item my $lock = cf::lock_acquire $string
236 410
237Wait until the given lock is available and then acquires it and returns 411Wait until the given lock is available and then acquires it and returns
238a Coro::guard object. If the guard object gets destroyed (goes out of scope, 412a L<Guard> object. If the guard object gets destroyed (goes out of scope,
239for example when the coroutine gets canceled), the lock is automatically 413for example when the coroutine gets canceled), the lock is automatically
240returned. 414returned.
241 415
416Locks are *not* recursive, locking from the same coro twice results in a
417deadlocked coro.
418
242Lock names should begin with a unique identifier (for example, cf::map::find 419Lock names should begin with a unique identifier (for example, cf::map::find
243uses map_find and cf::map::load uses map_load). 420uses map_find and cf::map::load uses map_load).
244 421
245=cut 422=item $locked = cf::lock_active $string
246 423
247our %LOCK; 424Return true if the lock is currently active, i.e. somebody has locked it.
425
426=cut
427
428our $LOCKS = new Coro::SemaphoreSet;
248 429
249sub lock_wait($) { 430sub lock_wait($) {
250 my ($key) = @_; 431 $LOCKS->wait ($_[0]);
251
252 # wait for lock, if any
253 while ($LOCK{$key}) {
254 push @{ $LOCK{$key} }, $Coro::current;
255 Coro::schedule;
256 }
257} 432}
258 433
259sub lock_acquire($) { 434sub lock_acquire($) {
260 my ($key) = @_; 435 $LOCKS->guard ($_[0])
436}
261 437
262 # wait, to be sure we are not locked 438sub lock_active($) {
263 lock_wait $key; 439 $LOCKS->count ($_[0]) < 1
264
265 $LOCK{$key} = [];
266
267 Coro::guard {
268 # wake up all waiters, to be on the safe side
269 $_->ready for @{ delete $LOCK{$key} };
270 }
271} 440}
272 441
273sub freeze_mainloop { 442sub freeze_mainloop {
274 return unless $TICK_WATCHER->is_active; 443 tick_inhibit_inc;
275 444
276 my $guard = Coro::guard { 445 &Guard::guard (\&tick_inhibit_dec);
277 $TICK_WATCHER->start; 446}
278 $WRITE_RUNTIME_WATCHER->start; 447
448=item cf::periodic $interval, $cb
449
450Like EV::periodic, but randomly selects a starting point so that the actions
451get spread over time.
452
453=cut
454
455sub periodic($$) {
456 my ($interval, $cb) = @_;
457
458 my $start = rand List::Util::min 180, $interval;
459
460 EV::periodic $start, $interval, 0, $cb
461}
462
463=item cf::get_slot $time[, $priority[, $name]]
464
465Allocate $time seconds of blocking CPU time at priority C<$priority>:
466This call blocks and returns only when you have at least C<$time> seconds
467of cpu time till the next tick. The slot is only valid till the next cede.
468
469The optional C<$name> can be used to identify the job to run. It might be
470used for statistical purposes and should identify the same time-class.
471
472Useful for short background jobs.
473
474=cut
475
476our @SLOT_QUEUE;
477our $SLOT_QUEUE;
478our $SLOT_DECAY = 0.9;
479
480$SLOT_QUEUE->cancel if $SLOT_QUEUE;
481$SLOT_QUEUE = Coro::async {
482 $Coro::current->desc ("timeslot manager");
483
484 my $signal = new Coro::Signal;
485 my $busy;
486
487 while () {
488 next_job:
489
490 my $avail = cf::till_tick;
491
492 for (0 .. $#SLOT_QUEUE) {
493 if ($SLOT_QUEUE[$_][0] <= $avail) {
494 $busy = 0;
495 my $job = splice @SLOT_QUEUE, $_, 1, ();
496 $job->[2]->send;
497 Coro::cede;
498 goto next_job;
499 } else {
500 $SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
501 }
502 }
503
504 if (@SLOT_QUEUE) {
505 # we do not use wait_for_tick() as it returns immediately when tick is inactive
506 push @cf::WAIT_FOR_TICK, $signal;
507 $signal->wait;
508 } else {
509 $busy = 0;
510 Coro::schedule;
511 }
279 }; 512 }
280 $WRITE_RUNTIME_WATCHER->stop; 513};
281 $TICK_WATCHER->stop; 514
282 $guard 515sub get_slot($;$$) {
516 return if tick_inhibit || $Coro::current == $Coro::main;
517
518 my ($time, $pri, $name) = @_;
519
520 $time = clamp $time, 0.01, $TICK * .6;
521
522 my $sig = new Coro::Signal;
523
524 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
525 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
526 $SLOT_QUEUE->ready;
527 $sig->wait;
283} 528}
284 529
285=item cf::async { BLOCK } 530=item cf::async { BLOCK }
286 531
287Currently the same as Coro::async_pool, meaning you cannot use 532Currently the same as Coro::async_pool, meaning you cannot use
292 537
293BEGIN { *async = \&Coro::async_pool } 538BEGIN { *async = \&Coro::async_pool }
294 539
295=item cf::sync_job { BLOCK } 540=item cf::sync_job { BLOCK }
296 541
297The design of crossfire+ requires that the main coro ($Coro::main) is 542The design of Deliantra requires that the main coroutine ($Coro::main)
298always able to handle events or runnable, as crossfire+ is only partly 543is always able to handle events or runnable, as Deliantra is only
299reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 544partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
545acceptable.
300 546
301If it must be done, put the blocking parts into C<sync_job>. This will run 547If it must be done, put the blocking parts into C<sync_job>. This will run
302the given BLOCK in another coroutine while waiting for the result. The 548the given BLOCK in another coroutine while waiting for the result. The
303server will be frozen during this time, so the block should either finish 549server will be frozen during this time, so the block should either finish
304fast or be very important. 550fast or be very important.
306=cut 552=cut
307 553
308sub sync_job(&) { 554sub sync_job(&) {
309 my ($job) = @_; 555 my ($job) = @_;
310 556
311 if ($Coro::current == $Coro::main) { 557 if (in_main) {
558 my $time = AE::time;
559
312 # this is the main coro, too bad, we have to block 560 # this is the main coro, too bad, we have to block
313 # till the operation succeeds, freezing the server :/ 561 # till the operation succeeds, freezing the server :/
314 562
315 # TODO: use suspend/resume instead 563 #LOG llevError, Carp::longmess "sync job";#d#
316 # (but this is cancel-safe) 564
317 my $freeze_guard = freeze_mainloop; 565 my $freeze_guard = freeze_mainloop;
318 566
319 my $busy = 1; 567 my $busy = 1;
320 my @res; 568 my @res;
321 569
322 (async { 570 (async {
571 $Coro::current->desc ("sync job coro");
323 @res = eval { $job->() }; 572 @res = eval { $job->() };
324 warn $@ if $@; 573 error $@ if $@;
325 undef $busy; 574 undef $busy;
326 })->prio (Coro::PRIO_MAX); 575 })->prio (Coro::PRIO_MAX);
327 576
328 while ($busy) { 577 while ($busy) {
329 Coro::cede or Event::one_event; 578 if (Coro::nready) {
579 Coro::cede_notself;
580 } else {
581 EV::loop EV::LOOP_ONESHOT;
330 } 582 }
583 }
584
585 my $time = AE::time - $time;
586
587 $TICK_START += $time; # do not account sync jobs to server load
331 588
332 wantarray ? @res : $res[0] 589 wantarray ? @res : $res[0]
333 } else { 590 } else {
334 # we are in another coroutine, how wonderful, everything just works 591 # we are in another coroutine, how wonderful, everything just works
335 592
355 $EXT_CORO{$coro+0} = $coro; 612 $EXT_CORO{$coro+0} = $coro;
356 613
357 $coro 614 $coro
358} 615}
359 616
360sub write_runtime { 617=item fork_call { }, @args
361 my $runtime = cf::localdir . "/runtime";
362 618
363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 619Executes the given code block with the given arguments in a seperate
364 or return; 620process, returning the results. Everything must be serialisable with
621Coro::Storable. May, of course, block. Note that the executed sub may
622never block itself or use any form of event handling.
365 623
366 my $value = $cf::RUNTIME + 90 + 10; 624=cut
367 # 10 is the runtime save interval, for a monotonic clock
368 # 60 allows for the watchdog to kill the server.
369 625
370 (aio_write $fh, 0, (length $value), $value, 0) <= 0 626sub post_fork {
371 and return; 627 reset_signals;
628}
372 629
373 # always fsync - this file is important 630sub fork_call(&@) {
374 aio_fsync $fh 631 my ($cb, @args) = @_;
375 and return;
376 632
377 close $fh 633 # we seemingly have to make a local copy of the whole thing,
378 or return; 634 # otherwise perl prematurely frees the stuff :/
635 # TODO: investigate and fix (likely this will be rather laborious)
379 636
380 aio_rename "$runtime~", $runtime 637 my @res = Coro::Util::fork_eval {
381 and return; 638 cf::post_fork;
639 &$cb
640 } @args;
382 641
642 wantarray ? @res : $res[-1]
643}
644
645sub objinfo {
383 1 646 (
647 "counter value" => cf::object::object_count,
648 "objects created" => cf::object::create_count,
649 "objects destroyed" => cf::object::destroy_count,
650 "freelist size" => cf::object::free_count,
651 "allocated objects" => cf::object::objects_size,
652 "active objects" => cf::object::actives_size,
653 )
654}
655
656=item $coin = coin_from_name $name
657
658=cut
659
660our %coin_alias = (
661 "silver" => "silvercoin",
662 "silvercoin" => "silvercoin",
663 "silvercoins" => "silvercoin",
664 "gold" => "goldcoin",
665 "goldcoin" => "goldcoin",
666 "goldcoins" => "goldcoin",
667 "platinum" => "platinacoin",
668 "platinumcoin" => "platinacoin",
669 "platinumcoins" => "platinacoin",
670 "platina" => "platinacoin",
671 "platinacoin" => "platinacoin",
672 "platinacoins" => "platinacoin",
673 "royalty" => "royalty",
674 "royalties" => "royalty",
675);
676
677sub coin_from_name($) {
678 $coin_alias{$_[0]}
679 ? cf::arch::find $coin_alias{$_[0]}
680 : undef
681}
682
683=item $value = cf::db_get $family => $key
684
685Returns a single value from the environment database.
686
687=item cf::db_put $family => $key => $value
688
689Stores the given C<$value> in the family. It can currently store binary
690data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
691
692=item $db = cf::db_table "name"
693
694Create and/or open a new database table. The string must not be "db" and must be unique
695within each server.
696
697=cut
698
699sub db_table($) {
700 cf::error "db_get called from main context"
701 if $Coro::current == $Coro::main;
702
703 my ($name) = @_;
704 my $db = BDB::db_create $DB_ENV;
705
706 eval {
707 $db->set_flags (BDB::CHKSUM);
708
709 utf8::encode $name;
710 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
711 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
712 cf::cleanup "db_open(db): $!" if $!;
713 };
714 cf::cleanup "db_open(db): $@" if $@;
715
716 $db
717}
718
719our $DB;
720
721sub db_init {
722 $DB ||= db_table "db";
723}
724
725sub db_get($$) {
726 my $key = "$_[0]/$_[1]";
727
728 cf::error "db_get called from main context"
729 if $Coro::current == $Coro::main;
730
731 BDB::db_get $DB, undef, $key, my $data;
732
733 $! ? ()
734 : $data
735}
736
737sub db_put($$$) {
738 BDB::dbreq_pri 4;
739 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
740}
741
742=item cf::cache $id => [$paths...], $processversion => $process
743
744Generic caching function that returns the value of the resource $id,
745caching and regenerating as required.
746
747This function can block.
748
749=cut
750
751sub cache {
752 my ($id, $src, $processversion, $process) = @_;
753
754 my $meta =
755 join "\x00",
756 $processversion,
757 map {
758 aio_stat $_
759 and Carp::croak "$_: $!";
760
761 ($_, (stat _)[7,9])
762 } @$src;
763
764 my $dbmeta = db_get cache => "$id/meta";
765 if ($dbmeta ne $meta) {
766 # changed, we may need to process
767
768 my @data;
769 my $md5;
770
771 for (0 .. $#$src) {
772 0 <= aio_load $src->[$_], $data[$_]
773 or Carp::croak "$src->[$_]: $!";
774 }
775
776 # if processing is expensive, check
777 # checksum first
778 if (1) {
779 $md5 =
780 join "\x00",
781 $processversion,
782 map {
783 cf::cede_to_tick;
784 ($src->[$_], Digest::MD5::md5_hex $data[$_])
785 } 0.. $#$src;
786
787
788 my $dbmd5 = db_get cache => "$id/md5";
789 if ($dbmd5 eq $md5) {
790 db_put cache => "$id/meta", $meta;
791
792 return db_get cache => "$id/data";
793 }
794 }
795
796 my $t1 = Time::HiRes::time;
797 my $data = $process->(\@data);
798 my $t2 = Time::HiRes::time;
799
800 info "cache: '$id' processed in ", $t2 - $t1, "s\n";
801
802 db_put cache => "$id/data", $data;
803 db_put cache => "$id/md5" , $md5;
804 db_put cache => "$id/meta", $meta;
805
806 return $data;
807 }
808
809 db_get cache => "$id/data"
810}
811
812=item cf::datalog type => key => value, ...
813
814Log a datalog packet of the given type with the given key-value pairs.
815
816=cut
817
818sub datalog($@) {
819 my ($type, %kv) = @_;
820 info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384} 821}
385 822
386=back 823=back
387 824
388=cut 825=cut
389 826
390############################################################################# 827#############################################################################
391 828
392=head2 ATTACHABLE OBJECTS 829=head2 ATTACHABLE OBJECTS
393 830
394Many objects in crossfire are so-called attachable objects. That means you can 831Many objects in deliantra are so-called attachable objects. That means you can
395attach callbacks/event handlers (a collection of which is called an "attachment") 832attach callbacks/event handlers (a collection of which is called an "attachment")
396to it. All such attachable objects support the following methods. 833to it. All such attachable objects support the following methods.
397 834
398In the following description, CLASS can be any of C<global>, C<object> 835In the following description, CLASS can be any of C<global>, C<object>
399C<player>, C<client> or C<map> (i.e. the attachable objects in 836C<player>, C<client> or C<map> (i.e. the attachable objects in
400crossfire+). 837Deliantra).
401 838
402=over 4 839=over 4
403 840
404=item $attachable->attach ($attachment, key => $value...) 841=item $attachable->attach ($attachment, key => $value...)
405 842
449=item cf::CLASS::attachment $name, ... 886=item cf::CLASS::attachment $name, ...
450 887
451Register an attachment by C<$name> through which attachable objects of the 888Register an attachment by C<$name> through which attachable objects of the
452given CLASS can refer to this attachment. 889given CLASS can refer to this attachment.
453 890
454Some classes such as crossfire maps and objects can specify attachments 891Some classes such as deliantra maps and objects can specify attachments
455that are attached at load/instantiate time, thus the need for a name. 892that are attached at load/instantiate time, thus the need for a name.
456 893
457These calls expect any number of the following handler/hook descriptions: 894These calls expect any number of the following handler/hook descriptions:
458 895
459=over 4 896=over 4
568 $registry = $CB_TYPE[$object_type] ||= []; 1005 $registry = $CB_TYPE[$object_type] ||= [];
569 1006
570 } elsif ($type eq "subtype") { 1007 } elsif ($type eq "subtype") {
571 defined $object_type or Carp::croak "subtype specified without type"; 1008 defined $object_type or Carp::croak "subtype specified without type";
572 my $object_subtype = shift @arg; 1009 my $object_subtype = shift @arg;
573 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 1010 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574 1011
575 } elsif ($type eq "package") { 1012 } elsif ($type eq "package") {
576 my $pkg = shift @arg; 1013 my $pkg = shift @arg;
577 1014
578 while (my ($name, $id) = each %cb_id) { 1015 while (my ($name, $id) = each %cb_id) {
583 1020
584 } elsif (exists $cb_id{$type}) { 1021 } elsif (exists $cb_id{$type}) {
585 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg; 1022 _attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
586 1023
587 } elsif (ref $type) { 1024 } elsif (ref $type) {
588 warn "attaching objects not supported, ignoring.\n"; 1025 error "attaching objects not supported, ignoring.\n";
589 1026
590 } else { 1027 } else {
591 shift @arg; 1028 shift @arg;
592 warn "attach argument '$type' not supported, ignoring.\n"; 1029 error "attach argument '$type' not supported, ignoring.\n";
593 } 1030 }
594 } 1031 }
595} 1032}
596 1033
597sub _object_attach { 1034sub _object_attach {
607 _attach $registry, $klass, @attach; 1044 _attach $registry, $klass, @attach;
608 } 1045 }
609 1046
610 $obj->{$name} = \%arg; 1047 $obj->{$name} = \%arg;
611 } else { 1048 } else {
612 warn "object uses attachment '$name' that is not available, postponing.\n"; 1049 info "object uses attachment '$name' which is not available, postponing.\n";
613 } 1050 }
614 1051
615 $obj->{_attachment}{$name} = undef; 1052 $obj->{_attachment}{$name} = undef;
616} 1053}
617 1054
619 if (ref $_[0]) { 1056 if (ref $_[0]) {
620 _object_attach @_; 1057 _object_attach @_;
621 } else { 1058 } else {
622 _attach shift->_attach_registry, @_; 1059 _attach shift->_attach_registry, @_;
623 } 1060 }
1061 _recalc_want;
624}; 1062};
625 1063
626# all those should be optimised 1064# all those should be optimised
627sub cf::attachable::detach { 1065sub cf::attachable::detach {
628 my ($obj, $name) = @_; 1066 my ($obj, $name) = @_;
631 delete $obj->{_attachment}{$name}; 1069 delete $obj->{_attachment}{$name};
632 reattach ($obj); 1070 reattach ($obj);
633 } else { 1071 } else {
634 Carp::croak "cannot, currently, detach class attachments"; 1072 Carp::croak "cannot, currently, detach class attachments";
635 } 1073 }
1074 _recalc_want;
636}; 1075};
637 1076
638sub cf::attachable::attached { 1077sub cf::attachable::attached {
639 my ($obj, $name) = @_; 1078 my ($obj, $name) = @_;
640 1079
655 "; 1094 ";
656 die if $@; 1095 die if $@;
657} 1096}
658 1097
659our $override; 1098our $override;
660our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 1099our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
661 1100
662sub override { 1101sub override {
663 $override = 1; 1102 $override = 1;
664 @invoke_results = (); 1103 @INVOKE_RESULTS = (@_);
665} 1104}
666 1105
667sub do_invoke { 1106sub do_invoke {
668 my $event = shift; 1107 my $event = shift;
669 my $callbacks = shift; 1108 my $callbacks = shift;
670 1109
671 @invoke_results = (); 1110 @INVOKE_RESULTS = ();
672 1111
673 local $override; 1112 local $override;
674 1113
675 for (@$callbacks) { 1114 for (@$callbacks) {
676 eval { &{$_->[1]} }; 1115 eval { &{$_->[1]} };
677 1116
678 if ($@) { 1117 if ($@) {
679 warn "$@";
680 warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; 1118 error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
681 override; 1119 override;
682 } 1120 }
683 1121
684 return 1 if $override; 1122 return 1 if $override;
685 } 1123 }
686 1124
687 0 1125 0
688} 1126}
689 1127
690=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) 1128=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691 1129
692=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) 1130=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693 1131
694Generate an object-specific event with the given arguments. 1132Generate an object-specific event with the given arguments.
695 1133
696This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 1134This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
697removed in future versions), and there is no public API to access override 1135removed in future versions), and there is no public API to access override
698results (if you must, access C<@cf::invoke_results> directly). 1136results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699 1137
700=back 1138=back
701 1139
702=cut 1140=cut
703 1141
704############################################################################# 1142#############################################################################
705# object support 1143# object support
1144
1145sub _object_equal($$);
1146sub _object_equal($$) {
1147 my ($a, $b) = @_;
1148
1149 return 0 unless (ref $a) eq (ref $b);
1150
1151 if ("HASH" eq ref $a) {
1152 my @ka = keys %$a;
1153 my @kb = keys %$b;
1154
1155 return 0 if @ka != @kb;
1156
1157 for (0 .. $#ka) {
1158 return 0 unless $ka[$_] eq $kb[$_];
1159 return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
1160 }
1161
1162 } elsif ("ARRAY" eq ref $a) {
1163
1164 return 0 if @$a != @$b;
1165
1166 for (0 .. $#$a) {
1167 return 0 unless _object_equal $a->[$_], $b->[$_];
1168 }
1169
1170 } elsif ($a ne $b) {
1171 return 0;
1172 }
1173
1174 1
1175}
1176
1177our $SLOW_MERGES;#d#
1178sub _can_merge {
1179 my ($ob1, $ob2) = @_;
1180
1181 ++$SLOW_MERGES;#d#
1182
1183 # we do the slow way here
1184 return _object_equal $ob1, $ob2
1185}
706 1186
707sub reattach { 1187sub reattach {
708 # basically do the same as instantiate, without calling instantiate 1188 # basically do the same as instantiate, without calling instantiate
709 my ($obj) = @_; 1189 my ($obj) = @_;
710 1190
1191 # no longer needed after getting rid of delete_package?
711 bless $obj, ref $obj; # re-bless in case extensions have been reloaded 1192 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
712 1193
713 my $registry = $obj->registry; 1194 my $registry = $obj->registry;
714 1195
715 @$registry = (); 1196 @$registry = ();
716 1197
721 for (@$attach) { 1202 for (@$attach) {
722 my ($klass, @attach) = @$_; 1203 my ($klass, @attach) = @$_;
723 _attach $registry, $klass, @attach; 1204 _attach $registry, $klass, @attach;
724 } 1205 }
725 } else { 1206 } else {
726 warn "object uses attachment '$name' that is not available, postponing.\n"; 1207 info "object uses attachment '$name' that is not available, postponing.\n";
727 } 1208 }
728 } 1209 }
729} 1210}
730 1211
731cf::attachable->attach ( 1212cf::attachable->attach (
732 prio => -1000000, 1213 prio => -1000000,
733 on_instantiate => sub { 1214 on_instantiate => sub {
734 my ($obj, $data) = @_; 1215 my ($obj, $data) = @_;
735 1216
736 $data = from_json $data; 1217 $data = decode_json $data;
737 1218
738 for (@$data) { 1219 for (@$data) {
739 my ($name, $args) = @$_; 1220 my ($name, $args) = @$_;
740 1221
741 $obj->attach ($name, %{$args || {} }); 1222 $obj->attach ($name, %{$args || {} });
757sub object_freezer_save { 1238sub object_freezer_save {
758 my ($filename, $rdata, $objs) = @_; 1239 my ($filename, $rdata, $objs) = @_;
759 1240
760 sync_job { 1241 sync_job {
761 if (length $$rdata) { 1242 if (length $$rdata) {
1243 utf8::decode (my $decname = $filename);
762 warn sprintf "saving %s (%d,%d)\n", 1244 trace sprintf "saving %s (%d,%d)\n",
763 $filename, length $$rdata, scalar @$objs; 1245 $decname, length $$rdata, scalar @$objs
1246 if $VERBOSE_IO;
764 1247
765 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 1248 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766 chmod SAVE_MODE, $fh; 1249 aio_chmod $fh, SAVE_MODE;
767 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 1250 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768 aio_fsync $fh if $cf::USE_FSYNC; 1251 if ($cf::USE_FSYNC) {
1252 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1253 aio_fsync $fh;
1254 }
769 close $fh; 1255 aio_close $fh;
770 1256
771 if (@$objs) { 1257 if (@$objs) {
772 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 1258 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
773 chmod SAVE_MODE, $fh; 1259 aio_chmod $fh, SAVE_MODE;
774 my $data = Storable::nfreeze { version => 1, objs => $objs }; 1260 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775 aio_write $fh, 0, (length $data), $data, 0; 1261 aio_write $fh, 0, (length $data), $data, 0;
776 aio_fsync $fh if $cf::USE_FSYNC; 1262 if ($cf::USE_FSYNC) {
1263 aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
1264 aio_fsync $fh;
1265 }
777 close $fh; 1266 aio_close $fh;
778 aio_rename "$filename.pst~", "$filename.pst"; 1267 aio_rename "$filename.pst~", "$filename.pst";
779 } 1268 }
780 } else { 1269 } else {
781 aio_unlink "$filename.pst"; 1270 aio_unlink "$filename.pst";
782 } 1271 }
783 1272
784 aio_rename "$filename~", $filename; 1273 aio_rename "$filename~", $filename;
1274
1275 $filename =~ s%/[^/]+$%%;
1276 aio_pathsync $filename if $cf::USE_FSYNC;
785 } else { 1277 } else {
786 warn "FATAL: $filename~: $!\n"; 1278 error "unable to save objects: $filename~: $!\n";
787 } 1279 }
788 } else { 1280 } else {
789 aio_unlink $filename; 1281 aio_unlink $filename;
790 aio_unlink "$filename.pst"; 1282 aio_unlink "$filename.pst";
791 } 1283 }
792
793 #d##TODO# nuke non .map-files if exist
794 if ($filename =~ s/\.map$//) {
795 aio_unlink $filename;
796 aio_unlink "$filename.pst";
797 }
798 } 1284 };
799} 1285}
800 1286
801sub object_freezer_as_string { 1287sub object_freezer_as_string {
802 my ($rdata, $objs) = @_; 1288 my ($rdata, $objs) = @_;
803 1289
808 1294
809sub object_thawer_load { 1295sub object_thawer_load {
810 my ($filename) = @_; 1296 my ($filename) = @_;
811 1297
812 my ($data, $av); 1298 my ($data, $av);
813
814 #d#TODO remove .map if file does not exist
815 aio_stat $filename and $filename =~ s/\.map$//;
816 1299
817 (aio_load $filename, $data) >= 0 1300 (aio_load $filename, $data) >= 0
818 or return; 1301 or return;
819 1302
820 unless (aio_stat "$filename.pst") { 1303 unless (aio_stat "$filename.pst") {
821 (aio_load "$filename.pst", $av) >= 0 1304 (aio_load "$filename.pst", $av) >= 0
822 or return; 1305 or return;
1306
823 $av = eval { (Storable::thaw $av)->{objs} }; 1307 my $st = eval { Coro::Storable::thaw $av };
1308 $av = $st->{objs};
824 } 1309 }
825 1310
1311 utf8::decode (my $decname = $filename);
826 warn sprintf "loading %s (%d)\n", 1312 trace sprintf "loading %s (%d,%d)\n",
827 $filename, length $data, scalar @{$av || []};#d# 1313 $decname, length $data, scalar @{$av || []}
1314 if $VERBOSE_IO;
1315
828 return ($data, $av); 1316 ($data, $av)
829} 1317}
1318
1319=head2 COMMAND CALLBACKS
1320
1321=over 4
1322
1323=cut
830 1324
831############################################################################# 1325#############################################################################
832# command handling &c 1326# command handling &c
833 1327
834=item cf::register_command $name => \&callback($ob,$args); 1328=item cf::register_command $name => \&callback($ob,$args);
847 push @{ $COMMAND{$name} }, [$caller, $cb]; 1341 push @{ $COMMAND{$name} }, [$caller, $cb];
848} 1342}
849 1343
850=item cf::register_extcmd $name => \&callback($pl,$packet); 1344=item cf::register_extcmd $name => \&callback($pl,$packet);
851 1345
852Register a callbackf ro execution when the client sends an extcmd packet. 1346Register a callback for execution when the client sends an (synchronous)
1347extcmd packet. Ext commands will be processed in the order they are
1348received by the server, like other user commands. The first argument is
1349the logged-in player. Ext commands can only be processed after a player
1350has logged in successfully.
853 1351
854If the callback returns something, it is sent back as if reply was being 1352If the callback returns something, it is sent back as if reply was being
855called. 1353called.
856 1354
1355=item cf::register_exticmd $name => \&callback($ns,$packet);
1356
1357Register a callback for execution when the client sends an (asynchronous)
1358exticmd packet. Exti commands are processed by the server as soon as they
1359are received, i.e. out of order w.r.t. other commands. The first argument
1360is a client socket. Exti commands can be received anytime, even before
1361log-in.
1362
1363If the callback returns something, it is sent back as if reply was being
1364called.
1365
857=cut 1366=cut
858 1367
859sub register_extcmd { 1368sub register_extcmd {
860 my ($name, $cb) = @_; 1369 my ($name, $cb) = @_;
861 1370
862 $EXTCMD{$name} = $cb; 1371 $EXTCMD{$name} = $cb;
863} 1372}
864 1373
1374sub register_exticmd {
1375 my ($name, $cb) = @_;
1376
1377 $EXTICMD{$name} = $cb;
1378}
1379
1380use File::Glob ();
1381
865cf::player->attach ( 1382cf::player->attach (
866 on_command => sub { 1383 on_unknown_command => sub {
867 my ($pl, $name, $params) = @_; 1384 my ($pl, $name, $params) = @_;
868 1385
869 my $cb = $COMMAND{$name} 1386 my $cb = $COMMAND{$name}
870 or return; 1387 or return;
871 1388
876 cf::override; 1393 cf::override;
877 }, 1394 },
878 on_extcmd => sub { 1395 on_extcmd => sub {
879 my ($pl, $buf) = @_; 1396 my ($pl, $buf) = @_;
880 1397
881 my $msg = eval { from_json $buf }; 1398 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
882 1399
883 if (ref $msg) { 1400 if (ref $msg) {
1401 my ($type, $reply, @payload) =
1402 "ARRAY" eq ref $msg
1403 ? @$msg
1404 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1405
1406 my @reply;
1407
884 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1408 if (my $cb = $EXTCMD{$type}) {
885 if (my %reply = $cb->($pl, $msg)) { 1409 @reply = $cb->($pl, @payload);
886 $pl->ext_reply ($msg->{msgid}, %reply);
887 }
888 } 1410 }
1411
1412 $pl->ext_reply ($reply, @reply)
1413 if $reply;
1414
889 } else { 1415 } else {
890 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1416 error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
891 } 1417 }
892 1418
893 cf::override; 1419 cf::override;
894 }, 1420 },
895); 1421);
896 1422
1423# "readahead" all extensions
897sub load_extension { 1424sub cache_extensions {
898 my ($path) = @_; 1425 my $grp = IO::AIO::aio_group;
899 1426
900 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1427 add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
901 my $base = $1; 1428 for (grep /\.ext$/, @{$_[0]}) {
902 my $pkg = $1; 1429 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
903 $pkg =~ s/[^[:word:]]/_/g;
904 $pkg = "ext::$pkg";
905
906 warn "... loading '$path' into '$pkg'\n";
907
908 open my $fh, "<:utf8", $path
909 or die "$path: $!";
910
911 my $source =
912 "package $pkg; use strict; use utf8;\n"
913 . "#line 1 \"$path\"\n{\n"
914 . (do { local $/; <$fh> })
915 . "\n};\n1";
916
917 unless (eval $source) {
918 my $msg = $@ ? "$path: $@\n"
919 : "extension disabled.\n";
920 if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
921 warn $@;
922 warn "mandatory extension failed to load, exiting.\n";
923 exit 1;
924 } 1430 }
925 die $@;
926 } 1431 };
927 1432
928 push @EXTS, $pkg; 1433 $grp
929} 1434}
930 1435
931sub load_extensions { 1436sub load_extensions {
1437 info "loading extensions...";
1438
1439 cf::sync_job {
1440 my %todo;
1441
932 for my $ext (<$LIBDIR/*.ext>) { 1442 for my $path (<$LIBDIR/*.ext>) {
933 next unless -r $ext; 1443 next unless -r $path;
934 eval { 1444
935 load_extension $ext; 1445 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1446 my $base = $1;
1447 my $pkg = $1;
1448 $pkg =~ s/[^[:word:]]/_/g;
1449 $pkg = "ext::$pkg";
1450
1451 open my $fh, "<:utf8", $path
1452 or die "$path: $!";
1453
1454 my $source = do { local $/; <$fh> };
1455
1456 my %ext = (
1457 path => $path,
1458 base => $base,
1459 pkg => $pkg,
1460 );
1461
1462 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1463 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1464
1465 $ext{source} =
1466 "package $pkg; use common::sense;\n"
1467 . "#line 1 \"$path\"\n{\n"
1468 . $source
1469 . "\n};\n1";
1470
1471 $todo{$base} = \%ext;
1472 }
1473
1474 my $pass = 0;
1475 my %done;
1476 while (%todo) {
1477 my $progress;
1478
1479 ++$pass;
1480
1481 ext:
1482 while (my ($k, $v) = each %todo) {
1483 for (split /,\s*/, $v->{meta}{depends}) {
1484 next ext
1485 unless exists $done{$_};
1486 }
1487
1488 trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
1489
1490 my $active = eval $v->{source};
1491
1492 if (length $@) {
1493 error "$v->{path}: $@\n";
1494
1495 cf::cleanup "mandatory extension '$k' failed to load, exiting."
1496 if exists $v->{meta}{mandatory};
1497
1498 warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1499 delete $todo{$k};
1500 } else {
1501 $done{$k} = delete $todo{$k};
1502 push @EXTS, $v->{pkg};
1503 $progress = 1;
1504
1505 info "$v->{base}: extension inactive.\n"
1506 unless $active;
1507 }
936 1 1508 }
937 } or warn "$ext not loaded: $@"; 1509
1510 unless ($progress) {
1511 warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1512
1513 while (my ($k, $v) = each %todo) {
1514 cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
1515 if exists $v->{meta}{mandatory};
1516 }
1517 }
1518 }
938 } 1519 };
939} 1520}
940 1521
941############################################################################# 1522#############################################################################
942 1523
1524=back
1525
943=head2 CORE EXTENSIONS 1526=head2 CORE EXTENSIONS
944 1527
945Functions and methods that extend core crossfire objects. 1528Functions and methods that extend core deliantra objects.
946 1529
947=cut 1530=cut
948 1531
949package cf::player; 1532package cf::player;
950 1533
952 1535
953=head3 cf::player 1536=head3 cf::player
954 1537
955=over 4 1538=over 4
956 1539
1540=item cf::player::num_playing
1541
1542Returns the official number of playing players, as per the Crossfire metaserver rules.
1543
1544=cut
1545
1546sub num_playing {
1547 scalar grep
1548 $_->ob->map
1549 && !$_->hidden
1550 && !$_->ob->flag (cf::FLAG_WIZ),
1551 cf::player::list
1552}
1553
957=item cf::player::find $login 1554=item cf::player::find $login
958 1555
959Returns the given player object, loading it if necessary (might block). 1556Returns the given player object, loading it if necessary (might block).
960 1557
961=cut 1558=cut
962 1559
963sub playerdir($) { 1560sub playerdir($) {
964 cf::localdir 1561 "$PLAYERDIR/"
965 . "/"
966 . cf::playerdir
967 . "/"
968 . (ref $_[0] ? $_[0]->ob->name : $_[0]) 1562 . (ref $_[0] ? $_[0]->ob->name : $_[0])
969} 1563}
970 1564
971sub path($) { 1565sub path($) {
972 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 1566 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973 1567
974 (playerdir $login) . "/$login.pl" 1568 (playerdir $login) . "/playerdata"
975} 1569}
976 1570
977sub find_active($) { 1571sub find_active($) {
978 $cf::PLAYER{$_[0]} 1572 $cf::PLAYER{$_[0]}
979 and $cf::PLAYER{$_[0]}->active 1573 and $cf::PLAYER{$_[0]}->active
982 1576
983sub exists($) { 1577sub exists($) {
984 my ($login) = @_; 1578 my ($login) = @_;
985 1579
986 $cf::PLAYER{$login} 1580 $cf::PLAYER{$login}
987 or cf::sync_job { !aio_stat path $login } 1581 or !aio_stat path $login
988} 1582}
989 1583
990sub find($) { 1584sub find($) {
991 return $cf::PLAYER{$_[0]} || do { 1585 return $cf::PLAYER{$_[0]} || do {
992 my $login = $_[0]; 1586 my $login = $_[0];
993 1587
994 my $guard = cf::lock_acquire "user_find:$login"; 1588 my $guard = cf::lock_acquire "user_find:$login";
995 1589
996 $cf::PLAYER{$_[0]} || do { 1590 $cf::PLAYER{$_[0]} || do {
997 my $pl = load_pl path $login 1591 # rename old playerfiles to new ones
1592 #TODO: remove when no longer required
1593 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1594 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1595 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1596 aio_unlink +(playerdir $login) . "/$login.pl";
1597
1598 my $f = new_from_file cf::object::thawer path $login
998 or return; 1599 or return;
1600
1601 my $pl = cf::player::load_pl $f
1602 or return;
1603
1604 local $cf::PLAYER_LOADING{$login} = $pl;
1605 $f->resolve_delayed_derefs;
999 $cf::PLAYER{$login} = $pl 1606 $cf::PLAYER{$login} = $pl
1000 } 1607 }
1001 } 1608 }
1002} 1609}
1610
1611cf::player->attach (
1612 on_load => sub {
1613 my ($pl, $path) = @_;
1614
1615 # restore slots saved in save, below
1616 my $slots = delete $pl->{_slots};
1617
1618 $pl->ob->current_weapon ($slots->[0]);
1619 $pl->combat_ob ($slots->[1]);
1620 $pl->ranged_ob ($slots->[2]);
1621 },
1622);
1003 1623
1004sub save($) { 1624sub save($) {
1005 my ($pl) = @_; 1625 my ($pl) = @_;
1006 1626
1007 return if $pl->{deny_save}; 1627 return if $pl->{deny_save};
1012 return if $pl->{deny_save}; 1632 return if $pl->{deny_save};
1013 1633
1014 aio_mkdir playerdir $pl, 0770; 1634 aio_mkdir playerdir $pl, 0770;
1015 $pl->{last_save} = $cf::RUNTIME; 1635 $pl->{last_save} = $cf::RUNTIME;
1016 1636
1637 cf::get_slot 0.01;
1638
1639 # save slots, to be restored later
1640 local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
1641
1017 $pl->save_pl ($path); 1642 $pl->save_pl ($path);
1018 Coro::cede; 1643 cf::cede_to_tick;
1019} 1644}
1020 1645
1021sub new($) { 1646sub new($) {
1022 my ($login) = @_; 1647 my ($login) = @_;
1023 1648
1029 $cf::PLAYER{$login} = $self; 1654 $cf::PLAYER{$login} = $self;
1030 1655
1031 $self 1656 $self
1032} 1657}
1033 1658
1659=item $player->send_msg ($channel, $msg, $color, [extra...])
1660
1661=cut
1662
1663sub send_msg {
1664 my $ns = shift->ns
1665 or return;
1666 $ns->send_msg (@_);
1667}
1668
1034=item $pl->quit_character 1669=item $pl->quit_character
1035 1670
1036Nukes the player without looking back. If logged in, the connection will 1671Nukes the player without looking back. If logged in, the connection will
1037be destroyed. May block for a long time. 1672be destroyed. May block for a long time.
1038 1673
1039=cut 1674=cut
1040 1675
1041sub quit_character { 1676sub quit_character {
1042 my ($pl) = @_; 1677 my ($pl) = @_;
1043 1678
1679 my $name = $pl->ob->name;
1680
1044 $pl->{deny_save} = 1; 1681 $pl->{deny_save} = 1;
1045 $pl->password ("*"); # this should lock out the player until we nuked the dir 1682 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1046 1683
1047 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1684 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1048 $pl->deactivate; 1685 $pl->deactivate;
1686
1687 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1049 $pl->invoke (cf::EVENT_PLAYER_QUIT); 1688 $pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
1689 ext::highscore::check ($pl->ob);
1690
1050 $pl->ns->destroy if $pl->ns; 1691 $pl->ns->destroy if $pl->ns;
1051 1692
1052 my $path = playerdir $pl; 1693 my $path = playerdir $pl;
1053 my $temp = "$path~$cf::RUNTIME~deleting~"; 1694 my $temp = "$path~$cf::RUNTIME~deleting~";
1054 aio_rename $path, $temp; 1695 aio_rename $path, $temp;
1055 delete $cf::PLAYER{$pl->ob->name}; 1696 delete $cf::PLAYER{$pl->ob->name};
1056 $pl->destroy; 1697 $pl->destroy;
1698
1699 my $prefix = qr<^~\Q$name\E/>;
1700
1701 # nuke player maps
1702 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1703
1057 IO::AIO::aio_rmtree $temp; 1704 IO::AIO::aio_rmtree $temp;
1705}
1706
1707=item $pl->kick
1708
1709Kicks a player out of the game. This destroys the connection.
1710
1711=cut
1712
1713sub kick {
1714 my ($pl, $kicker) = @_;
1715
1716 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1717 $pl->killer ("kicked");
1718 $pl->ns->destroy;
1058} 1719}
1059 1720
1060=item cf::player::list_logins 1721=item cf::player::list_logins
1061 1722
1062Returns am arrayref of all valid playernames in the system, can take a 1723Returns am arrayref of all valid playernames in the system, can take a
1063while and may block, so not sync_job-capable, ever. 1724while and may block, so not sync_job-capable, ever.
1064 1725
1065=cut 1726=cut
1066 1727
1067sub list_logins { 1728sub list_logins {
1068 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir 1729 my $dirs = aio_readdir $PLAYERDIR
1069 or return []; 1730 or return [];
1070 1731
1071 my @logins; 1732 my @logins;
1072 1733
1073 for my $login (@$dirs) { 1734 for my $login (@$dirs) {
1735 my $path = path $login;
1736
1737 # a .pst is a dead give-away for a valid player
1738 # if no pst file found, open and chekc for blocked users
1739 if (aio_stat "$path.pst") {
1074 my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next; 1740 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1075 aio_read $fh, 0, 512, my $buf, 0 or next; 1741 aio_read $fh, 0, 512, my $buf, 0 or next;
1076 $buf !~ /^password -------------$/m or next; # official not-valid tag 1742 $buf !~ /^password -------------$/m or next; # official not-valid tag
1743 }
1077 1744
1078 utf8::decode $login; 1745 utf8::decode $login;
1079 push @logins, $login; 1746 push @logins, $login;
1080 } 1747 }
1081 1748
1082 \@logins 1749 \@logins
1083} 1750}
1084 1751
1085=item $player->maps 1752=item $player->maps
1753
1754=item cf::player::maps $login
1086 1755
1087Returns an arrayref of map paths that are private for this 1756Returns an arrayref of map paths that are private for this
1088player. May block. 1757player. May block.
1089 1758
1090=cut 1759=cut
1108 } 1777 }
1109 1778
1110 \@paths 1779 \@paths
1111} 1780}
1112 1781
1782=item $protocol_xml = $player->expand_cfpod ($cfpod)
1783
1784Expand deliantra pod fragments into protocol xml.
1785
1113=item $player->ext_reply ($msgid, $msgtype, %msg) 1786=item $player->ext_reply ($msgid, @msg)
1114 1787
1115Sends an ext reply to the player. 1788Sends an ext reply to the player.
1116 1789
1117=cut 1790=cut
1118 1791
1119sub ext_reply($$$%) { 1792sub ext_reply($$@) {
1120 my ($self, $id, %msg) = @_; 1793 my ($self, $id, @msg) = @_;
1121 1794
1122 $msg{msgid} = $id; 1795 $self->ns->ext_reply ($id, @msg)
1123
1124 $self->send ("ext " . cf::to_json \%msg);
1125} 1796}
1126 1797
1127package cf; 1798=item $player->ext_msg ($type, @msg)
1799
1800Sends an ext event to the client.
1801
1802=cut
1803
1804sub ext_msg($$@) {
1805 my ($self, $type, @msg) = @_;
1806
1807 $self->ns->ext_msg ($type, @msg);
1808}
1809
1810=head3 cf::region
1811
1812=over 4
1813
1814=cut
1815
1816package cf::region;
1817
1818=item cf::region::find_by_path $path
1819
1820Tries to decuce the likely region for a map knowing only its path.
1821
1822=cut
1823
1824sub find_by_path($) {
1825 my ($path) = @_;
1826
1827 $path =~ s/^~[^\/]*//; # skip ~login
1828
1829 my ($match, $specificity);
1830
1831 for my $region (list) {
1832 if ($region->{match} && $path =~ $region->{match}) {
1833 ($match, $specificity) = ($region, $region->specificity)
1834 if $region->specificity > $specificity;
1835 }
1836 }
1837
1838 $match
1839}
1128 1840
1129=back 1841=back
1130
1131 1842
1132=head3 cf::map 1843=head3 cf::map
1133 1844
1134=over 4 1845=over 4
1135 1846
1147our $MAX_RESET = 3600; 1858our $MAX_RESET = 3600;
1148our $DEFAULT_RESET = 3000; 1859our $DEFAULT_RESET = 3000;
1149 1860
1150sub generate_random_map { 1861sub generate_random_map {
1151 my ($self, $rmp) = @_; 1862 my ($self, $rmp) = @_;
1863
1864 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1865
1152 # mit "rum" bekleckern, nicht 1866 # mit "rum" bekleckern, nicht
1153 $self->_create_random_map ( 1867 $self->_create_random_map (
1154 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1868 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1155 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1869 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1156 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1870 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1157 $rmp->{exit_on_final_map}, 1871 $rmp->{exit_on_final_map},
1158 $rmp->{xsize}, $rmp->{ysize}, 1872 $rmp->{xsize}, $rmp->{ysize},
1159 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1873 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1160 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1874 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1175 1889
1176sub register { 1890sub register {
1177 my (undef, $regex, $prio) = @_; 1891 my (undef, $regex, $prio) = @_;
1178 my $pkg = caller; 1892 my $pkg = caller;
1179 1893
1180 no strict;
1181 push @{"$pkg\::ISA"}, __PACKAGE__; 1894 push @{"$pkg\::ISA"}, __PACKAGE__;
1182 1895
1183 $EXT_MAP{$pkg} = [$prio, qr<$regex>]; 1896 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1184} 1897}
1185 1898
1186# also paths starting with '/' 1899# also paths starting with '/'
1187$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}]; 1900$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1188 1901
1189sub thawer_merge { 1902sub thawer_merge {
1190 my ($self, $merge) = @_; 1903 my ($self, $merge) = @_;
1191 1904
1192 # we have to keep some variables in memory intact 1905 # we have to keep some variables in memory intact
1193 local $self->{path}; 1906 local $self->{path};
1194 local $self->{load_path}; 1907 local $self->{load_path};
1195 local $self->{deny_save};
1196 local $self->{deny_reset};
1197 1908
1198 $self->SUPER::thawer_merge ($merge); 1909 $self->SUPER::thawer_merge ($merge);
1199} 1910}
1200 1911
1201sub normalise { 1912sub normalise {
1202 my ($path, $base) = @_; 1913 my ($path, $base) = @_;
1203 1914
1204 $path = "$path"; # make sure its a string 1915 $path = "$path"; # make sure it's a string
1205 1916
1206 $path =~ s/\.map$//; 1917 $path =~ s/\.map$//;
1207 1918
1208 # map plan: 1919 # map plan:
1209 # 1920 #
1248 $self->init; # pass $1 etc. 1959 $self->init; # pass $1 etc.
1249 return $self; 1960 return $self;
1250 } 1961 }
1251 } 1962 }
1252 1963
1253 Carp::carp "unable to resolve path '$path' (base '$base')."; 1964 Carp::cluck "unable to resolve path '$path' (base '$base')";
1254 () 1965 ()
1255} 1966}
1256 1967
1257sub init { 1968sub init {
1258 my ($self) = @_; 1969 my ($self) = @_;
1273 1984
1274# the original (read-only) location 1985# the original (read-only) location
1275sub load_path { 1986sub load_path {
1276 my ($self) = @_; 1987 my ($self) = @_;
1277 1988
1278 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path} 1989 "$MAPDIR/$self->{path}.map"
1279} 1990}
1280 1991
1281# the temporary/swap location 1992# the temporary/swap location
1282sub save_path { 1993sub save_path {
1283 my ($self) = @_; 1994 my ($self) = @_;
1284 1995
1285 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1996 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1286 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path 1997 "$TMPDIR/$path.map"
1287} 1998}
1288 1999
1289# the unique path, undef == no special unique path 2000# the unique path, undef == no special unique path
1290sub uniq_path { 2001sub uniq_path {
1291 my ($self) = @_; 2002 my ($self) = @_;
1292 2003
1293 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 2004 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1294 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path 2005 "$UNIQUEDIR/$path"
1295} 2006}
1296 2007
1297# and all this just because we cannot iterate over 2008sub decay_objects {
1298# all maps in C++...
1299sub change_all_map_light {
1300 my ($change) = @_; 2009 my ($self) = @_;
1301 2010
1302 $_->change_map_light ($change) 2011 return if $self->{deny_reset};
1303 for grep $_->outdoor, values %cf::MAP; 2012
2013 $self->do_decay_objects;
1304} 2014}
1305 2015
1306sub unlink_save { 2016sub unlink_save {
1307 my ($self) = @_; 2017 my ($self) = @_;
1308 2018
1309 utf8::encode (my $save = $self->save_path); 2019 utf8::encode (my $save = $self->save_path);
1310 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; 2020 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; 2021 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313 #d#TODO remove .map and also nuke
1314 $save =~ s/\.map// or return;#d#
1315 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317} 2022}
1318 2023
1319sub load_header_from($) { 2024sub load_header_from($) {
1320 my ($self, $path) = @_; 2025 my ($self, $path) = @_;
1321 2026
1322 utf8::encode $path; 2027 utf8::encode $path;
1323 #aio_open $path, O_RDONLY, 0 2028 my $f = new_from_file cf::object::thawer $path
1324 # or return;
1325
1326 $self->_load_header ($path)
1327 or return; 2029 or return;
2030
2031 $self->_load_header ($f)
2032 or return;
2033
2034 local $MAP_LOADING{$self->{path}} = $self;
2035 $f->resolve_delayed_derefs;
1328 2036
1329 $self->{load_path} = $path; 2037 $self->{load_path} = $path;
1330 2038
1331 1 2039 1
1332} 2040}
1371 $self->load_header_orig 2079 $self->load_header_orig
1372 or return; 2080 or return;
1373 $self->prepare_orig; 2081 $self->prepare_orig;
1374 } 2082 }
1375 2083
2084 $self->{deny_reset} = 1
2085 if $self->no_reset;
2086
2087 $self->default_region (cf::region::find_by_path $self->{path})
2088 unless $self->default_region;
2089
1376 1 2090 1
1377} 2091}
1378 2092
1379sub find; 2093sub find;
1380sub find { 2094sub find {
1381 my ($path, $origin) = @_; 2095 my ($path, $origin) = @_;
1382 2096
2097 cf::cede_to_tick;
2098
1383 $path = normalise $path, $origin && $origin->path; 2099 $path = normalise $path, $origin && $origin->path;
1384 2100
2101 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1385 cf::lock_wait "map_find:$path"; 2102 my $guard2 = cf::lock_acquire "map_find:$path";
1386 2103
1387 $cf::MAP{$path} || do { 2104 $cf::MAP{$path} || do {
1388 my $guard = cf::lock_acquire "map_find:$path";
1389 my $map = new_from_path cf::map $path 2105 my $map = new_from_path cf::map $path
1390 or return; 2106 or return;
1391 2107
1392 $map->{last_save} = $cf::RUNTIME; 2108 $map->{last_save} = $cf::RUNTIME;
1393 2109
1394 $map->load_header 2110 $map->load_header
1395 or return; 2111 or return;
1396 2112
1397 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?) 2113 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1398 # doing this can freeze the server in a sync job, obviously 2114 # doing this can freeze the server in a sync job, obviously
1399 #$cf::WAIT_FOR_TICK->wait; 2115 #$cf::WAIT_FOR_TICK->wait;
2116 undef $guard2;
2117 undef $guard1;
1400 $map->reset; 2118 $map->reset;
1401 undef $guard;
1402 return find $path; 2119 return find $path;
1403 } 2120 }
1404 2121
1405 $cf::MAP{$path} = $map 2122 $cf::MAP{$path} = $map
1406 } 2123 }
1407} 2124}
1408 2125
1409sub pre_load { } 2126sub pre_load { }
1410sub post_load { } 2127#sub post_load { } # XS
1411 2128
1412sub load { 2129sub load {
1413 my ($self) = @_; 2130 my ($self) = @_;
1414 2131
1415 local $self->{deny_reset} = 1; # loading can take a long time 2132 local $self->{deny_reset} = 1; # loading can take a long time
1416 2133
1417 my $path = $self->{path}; 2134 my $path = $self->{path};
2135
2136 {
1418 my $guard = cf::lock_acquire "map_load:$path"; 2137 my $guard = cf::lock_acquire "map_data:$path";
1419 2138
2139 return unless $self->valid;
1420 return if $self->in_memory != cf::MAP_SWAPPED; 2140 return unless $self->in_memory == cf::MAP_SWAPPED;
1421 2141
1422 $self->in_memory (cf::MAP_LOADING); 2142 $self->in_memory (cf::MAP_LOADING);
1423 2143
1424 $self->alloc; 2144 $self->alloc;
1425 2145
1426 $self->pre_load; 2146 $self->pre_load;
2147 cf::cede_to_tick;
1427 2148
1428 $self->_load_objects ($self->{load_path}, 1) 2149 my $f = new_from_file cf::object::thawer $self->{load_path};
2150 $f->skip_block;
2151 $self->_load_objects ($f)
1429 or return; 2152 or return;
1430 2153
1431 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 2154 $self->post_load_original
1432 if delete $self->{load_original}; 2155 if delete $self->{load_original};
1433 2156
1434 if (my $uniq = $self->uniq_path) { 2157 if (my $uniq = $self->uniq_path) {
1435 utf8::encode $uniq; 2158 utf8::encode $uniq;
1436 if (aio_open $uniq, O_RDONLY, 0) { 2159 unless (aio_stat $uniq) {
2160 if (my $f = new_from_file cf::object::thawer $uniq) {
1437 $self->clear_unique_items; 2161 $self->clear_unique_items;
1438 $self->_load_objects ($uniq, 0); 2162 $self->_load_objects ($f);
2163 $f->resolve_delayed_derefs;
2164 }
1439 } 2165 }
1440 } 2166 }
1441 2167
1442 Coro::cede; 2168 $f->resolve_delayed_derefs;
1443 2169
2170 cf::cede_to_tick;
1444 # now do the right thing for maps 2171 # now do the right thing for maps
1445 $self->link_multipart_objects; 2172 $self->link_multipart_objects;
1446
1447 unless ($self->{deny_activate}) {
1448 $self->decay_objects;
1449 $self->fix_auto_apply;
1450 $self->update_buttons;
1451 Coro::cede;
1452 $self->set_darkness_map;
1453 $self->difficulty ($self->estimate_difficulty) 2173 $self->difficulty ($self->estimate_difficulty)
1454 unless $self->difficulty; 2174 unless $self->difficulty;
1455 Coro::cede; 2175 cf::cede_to_tick;
2176
2177 unless ($self->{deny_activate}) {
2178 $self->decay_objects;
2179 $self->fix_auto_apply;
2180 $self->update_buttons;
2181 cf::cede_to_tick;
1456 $self->activate; 2182 $self->activate;
2183 }
2184
2185 $self->{last_save} = $cf::RUNTIME;
2186 $self->last_access ($cf::RUNTIME);
2187
2188 $self->in_memory (cf::MAP_ACTIVE);
1457 } 2189 }
1458 2190
1459 $self->post_load; 2191 $self->post_load;
1460
1461 $self->in_memory (cf::MAP_IN_MEMORY);
1462} 2192}
1463 2193
2194# customize the map for a given player, i.e.
2195# return the _real_ map. used by e.g. per-player
2196# maps to change the path to ~playername/mappath
1464sub customise_for { 2197sub customise_for {
1465 my ($self, $ob) = @_; 2198 my ($self, $ob) = @_;
1466 2199
1467 return find "~" . $ob->name . "/" . $self->{path} 2200 return find "~" . $ob->name . "/" . $self->{path}
1468 if $self->per_player; 2201 if $self->per_player;
1469 2202
2203# return find "?party/" . $ob->name . "/" . $self->{path}
2204# if $self->per_party;
2205
1470 $self 2206 $self
1471} 2207}
1472 2208
1473# find and load all maps in the 3x3 area around a map 2209# find and load all maps in the 3x3 area around a map
1474sub load_diag { 2210sub load_neighbours {
1475 my ($map) = @_; 2211 my ($map) = @_;
1476 2212
1477 my @diag; # diagonal neighbours 2213 my @neigh; # diagonal neighbours
1478 2214
1479 for (0 .. 3) { 2215 for (0 .. 3) {
1480 my $neigh = $map->tile_path ($_) 2216 my $neigh = $map->tile_path ($_)
1481 or next; 2217 or next;
1482 $neigh = find $neigh, $map 2218 $neigh = find $neigh, $map
1483 or next; 2219 or next;
1484 $neigh->load; 2220 $neigh->load;
1485 2221
2222 # now find the diagonal neighbours
2223 push @neigh,
1486 push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh], 2224 [$neigh->tile_path (($_ + 3) % 4), $neigh],
1487 [$neigh->tile_path (($_ + 1) % 4), $neigh]; 2225 [$neigh->tile_path (($_ + 1) % 4), $neigh];
1488 } 2226 }
1489 2227
1490 for (@diag) { 2228 for (grep defined $_->[0], @neigh) {
2229 my ($path, $origin) = @$_;
1491 my $neigh = find @$_ 2230 my $neigh = find $path, $origin
1492 or next; 2231 or next;
1493 $neigh->load; 2232 $neigh->load;
1494 } 2233 }
1495} 2234}
1496 2235
1497sub find_sync { 2236sub find_sync {
1498 my ($path, $origin) = @_; 2237 my ($path, $origin) = @_;
1499 2238
1500 cf::sync_job { find $path, $origin } 2239 return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
2240 if $Coro::current == $Coro::main;
2241
2242 find $path, $origin
1501} 2243}
1502 2244
1503sub do_load_sync { 2245sub do_load_sync {
1504 my ($map) = @_; 2246 my ($map) = @_;
1505 2247
1506 cf::sync_job { $map->load }; 2248 return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
2249 if $Coro::current == $Coro::main;
2250
2251 $map->load;
1507} 2252}
1508 2253
1509our %MAP_PREFETCH; 2254our %MAP_PREFETCH;
1510our $MAP_PREFETCHER = undef; 2255our $MAP_PREFETCHER = undef;
1511 2256
1512sub find_async { 2257sub find_async {
1513 my ($path, $origin) = @_; 2258 my ($path, $origin, $load) = @_;
1514 2259
1515 $path = normalise $path, $origin && $origin->{path}; 2260 $path = normalise $path, $origin && $origin->{path};
1516 2261
1517 if (my $map = $cf::MAP{$path}) { 2262 if (my $map = $cf::MAP{$path}) {
1518 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 2263 return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1519 } 2264 }
1520 2265
1521 undef $MAP_PREFETCH{$path}; 2266 $MAP_PREFETCH{$path} |= $load;
2267
1522 $MAP_PREFETCHER ||= cf::async { 2268 $MAP_PREFETCHER ||= cf::async {
2269 $Coro::current->{desc} = "map prefetcher";
2270
1523 while (%MAP_PREFETCH) { 2271 while (%MAP_PREFETCH) {
1524 for my $path (keys %MAP_PREFETCH) { 2272 while (my ($k, $v) = each %MAP_PREFETCH) {
1525 my $map = find $path 2273 if (my $map = find $k) {
1526 or next;
1527 $map->load; 2274 $map->load if $v;
2275 }
1528 2276
1529 delete $MAP_PREFETCH{$path}; 2277 delete $MAP_PREFETCH{$k};
1530 } 2278 }
1531 } 2279 }
1532 undef $MAP_PREFETCHER; 2280 undef $MAP_PREFETCHER;
1533 }; 2281 };
1534 $MAP_PREFETCHER->prio (6); 2282 $MAP_PREFETCHER->prio (6);
1535 2283
1536 () 2284 ()
1537} 2285}
1538 2286
2287# common code, used by both ->save and ->swapout
1539sub save { 2288sub _save {
1540 my ($self) = @_; 2289 my ($self) = @_;
1541
1542 my $lock = cf::lock_acquire "map_data:" . $self->path;
1543 2290
1544 $self->{last_save} = $cf::RUNTIME; 2291 $self->{last_save} = $cf::RUNTIME;
1545 2292
1546 return unless $self->dirty; 2293 return unless $self->dirty;
1547 2294
1553 return if $self->{deny_save}; 2300 return if $self->{deny_save};
1554 2301
1555 local $self->{last_access} = $self->last_access;#d# 2302 local $self->{last_access} = $self->last_access;#d#
1556 2303
1557 cf::async { 2304 cf::async {
2305 $Coro::current->{desc} = "map player save";
1558 $_->contr->save for $self->players; 2306 $_->contr->save for $self->players;
1559 }; 2307 };
2308
2309 cf::get_slot 0.02;
1560 2310
1561 if ($uniq) { 2311 if ($uniq) {
1562 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 2312 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1563 $self->_save_objects ($uniq, cf::IO_UNIQUES); 2313 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1564 } else { 2314 } else {
1565 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 2315 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1566 } 2316 }
1567} 2317}
1568 2318
2319sub save {
2320 my ($self) = @_;
2321
2322 my $lock = cf::lock_acquire "map_data:$self->{path}";
2323
2324 $self->_save;
2325}
2326
1569sub swap_out { 2327sub swap_out {
1570 my ($self) = @_; 2328 my ($self) = @_;
1571 2329
1572 # save first because save cedes
1573 $self->save;
1574
1575 my $lock = cf::lock_acquire "map_data:" . $self->path; 2330 my $lock = cf::lock_acquire "map_data:$self->{path}";
1576 2331
2332 return if $self->in_memory != cf::MAP_ACTIVE;
2333 return if $self->{deny_save};
1577 return if $self->players; 2334 return if $self->players;
1578 return if $self->in_memory != cf::MAP_IN_MEMORY;
1579 return if $self->{deny_save};
1580 2335
2336 # first deactivate the map and "unlink" it from the core
2337 $self->deactivate;
2338 $_->clear_links_to ($self) for values %cf::MAP;
2339 $self->in_memory (cf::MAP_SWAPPED);
2340
2341 # then atomically save
2342 $self->_save;
2343
2344 # then free the map
1581 $self->clear; 2345 $self->clear;
1582 $self->in_memory (cf::MAP_SWAPPED);
1583} 2346}
1584 2347
1585sub reset_at { 2348sub reset_at {
1586 my ($self) = @_; 2349 my ($self) = @_;
1587 2350
1588 # TODO: safety, remove and allow resettable per-player maps 2351 # TODO: safety, remove and allow resettable per-player maps
1589 return 1e99 if $self->isa ("ext::map_per_player");#d#
1590 return 1e99 if $self->{deny_reset}; 2352 return 1e99 if $self->{deny_reset};
1591 2353
1592 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 2354 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 2355 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1594 2356
1605 my ($self) = @_; 2367 my ($self) = @_;
1606 2368
1607 my $lock = cf::lock_acquire "map_data:$self->{path}"; 2369 my $lock = cf::lock_acquire "map_data:$self->{path}";
1608 2370
1609 return if $self->players; 2371 return if $self->players;
1610 return if $self->isa ("ext::map_per_player");#d#
1611 2372
1612 warn "resetting map ", $self->path;#d# 2373 cf::trace "resetting map ", $self->path, "\n";
1613 2374
1614 $self->in_memory (cf::MAP_SWAPPED); 2375 $self->in_memory (cf::MAP_SWAPPED);
1615 2376
1616 # need to save uniques path 2377 # need to save uniques path
1617 unless ($self->{deny_save}) { 2378 unless ($self->{deny_save}) {
1621 if $uniq; 2382 if $uniq;
1622 } 2383 }
1623 2384
1624 delete $cf::MAP{$self->path}; 2385 delete $cf::MAP{$self->path};
1625 2386
2387 $self->deactivate;
2388 $_->clear_links_to ($self) for values %cf::MAP;
1626 $self->clear; 2389 $self->clear;
1627
1628 $_->clear_links_to ($self) for values %cf::MAP;
1629 2390
1630 $self->unlink_save; 2391 $self->unlink_save;
1631 $self->destroy; 2392 $self->destroy;
1632} 2393}
1633 2394
1634my $nuke_counter = "aaaa"; 2395my $nuke_counter = "aaaa";
1635 2396
1636sub nuke { 2397sub nuke {
1637 my ($self) = @_; 2398 my ($self) = @_;
1638 2399
2400 {
2401 my $lock = cf::lock_acquire "map_data:$self->{path}";
2402
1639 delete $cf::MAP{$self->path}; 2403 delete $cf::MAP{$self->path};
1640 2404
1641 $self->unlink_save; 2405 $self->unlink_save;
1642 2406
1643 bless $self, "cf::map"; 2407 bless $self, "cf::map::wrap";
1644 delete $self->{deny_reset}; 2408 delete $self->{deny_reset};
1645 $self->{deny_save} = 1; 2409 $self->{deny_save} = 1;
1646 $self->reset_timeout (1); 2410 $self->reset_timeout (1);
1647 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++)); 2411 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648 2412
1649 $cf::MAP{$self->path} = $self; 2413 $cf::MAP{$self->path} = $self;
2414 }
1650 2415
1651 $self->reset; # polite request, might not happen 2416 $self->reset; # polite request, might not happen
2417}
2418
2419=item $maps = cf::map::tmp_maps
2420
2421Returns an arrayref with all map paths of currently instantiated and saved
2422maps. May block.
2423
2424=cut
2425
2426sub tmp_maps() {
2427 [
2428 map {
2429 utf8::decode $_;
2430 /\.map$/
2431 ? normalise $_
2432 : ()
2433 } @{ aio_readdir $TMPDIR or [] }
2434 ]
2435}
2436
2437=item $maps = cf::map::random_maps
2438
2439Returns an arrayref with all map paths of currently instantiated and saved
2440random maps. May block.
2441
2442=cut
2443
2444sub random_maps() {
2445 [
2446 map {
2447 utf8::decode $_;
2448 /\.map$/
2449 ? normalise "?random/$_"
2450 : ()
2451 } @{ aio_readdir $RANDOMDIR or [] }
2452 ]
1652} 2453}
1653 2454
1654=item cf::map::unique_maps 2455=item cf::map::unique_maps
1655 2456
1656Returns an arrayref of paths of all shared maps that have 2457Returns an arrayref of paths of all shared maps that have
1657instantiated unique items. May block. 2458instantiated unique items. May block.
1658 2459
1659=cut 2460=cut
1660 2461
1661sub unique_maps() { 2462sub unique_maps() {
1662 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir 2463 [
1663 or return; 2464 map {
1664
1665 my @paths;
1666
1667 for (@$files) {
1668 utf8::decode $_; 2465 utf8::decode $_;
1669 next if /\.pst$/; 2466 s/\.map$//; # TODO future compatibility hack
1670 next unless /^$PATH_SEP/o; 2467 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1671 2468 ? ()
1672 push @paths, cf::map::normalise $_; 2469 : normalise $_
2470 } @{ aio_readdir $UNIQUEDIR or [] }
1673 } 2471 ]
1674
1675 \@paths
1676} 2472}
1677 2473
1678package cf; 2474=item cf::map::static_maps
2475
2476Returns an arrayref if paths of all static maps (all preinstalled F<.map>
2477file in the shared directory excluding F</styles> and F</editor>). May
2478block.
2479
2480=cut
2481
2482sub static_maps() {
2483 my @dirs = "";
2484 my @maps;
2485
2486 while (@dirs) {
2487 my $dir = shift @dirs;
2488
2489 next if $dir eq "/styles" || $dir eq "/editor";
2490
2491 my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
2492 or return;
2493
2494 for (@$files) {
2495 s/\.map$// or next;
2496 utf8::decode $_;
2497 push @maps, "$dir/$_";
2498 }
2499
2500 push @dirs, map "$dir/$_", @$dirs;
2501 }
2502
2503 \@maps
2504}
1679 2505
1680=back 2506=back
1681 2507
1682=head3 cf::object 2508=head3 cf::object
1683 2509
1687 2513
1688=over 4 2514=over 4
1689 2515
1690=item $ob->inv_recursive 2516=item $ob->inv_recursive
1691 2517
1692Returns the inventory of the object _and_ their inventories, recursively. 2518Returns the inventory of the object I<and> their inventories, recursively,
2519but I<not> the object itself.
1693 2520
1694=cut 2521=cut
1695 2522
1696sub inv_recursive_; 2523sub inv_recursive_;
1697sub inv_recursive_ { 2524sub inv_recursive_ {
1700 2527
1701sub inv_recursive { 2528sub inv_recursive {
1702 inv_recursive_ inv $_[0] 2529 inv_recursive_ inv $_[0]
1703} 2530}
1704 2531
2532=item $ref = $ob->ref
2533
2534Creates and returns a persistent reference to an object that can be stored as a string.
2535
2536=item $ob = cf::object::deref ($refstring)
2537
2538returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2539even if the object actually exists. May block.
2540
2541=cut
2542
2543sub deref {
2544 my ($ref) = @_;
2545
2546 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2547 my ($uuid, $name) = ($1, $2);
2548 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2549 or return;
2550 $pl->ob->uuid eq $uuid
2551 or return;
2552
2553 $pl->ob
2554 } else {
2555 warn "$ref: cannot resolve object reference\n";
2556 undef
2557 }
2558}
2559
1705package cf; 2560package cf;
1706 2561
1707=back 2562=back
1708 2563
1709=head3 cf::object::player 2564=head3 cf::object::player
1715Sends a message to the player, as if the npc C<$npc> replied. C<$npc> 2570Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1716can be C<undef>. Does the right thing when the player is currently in a 2571can be C<undef>. Does the right thing when the player is currently in a
1717dialogue with the given NPC character. 2572dialogue with the given NPC character.
1718 2573
1719=cut 2574=cut
2575
2576our $SAY_CHANNEL = {
2577 id => "say",
2578 title => "Map",
2579 reply => "say ",
2580 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2581};
2582
2583our $CHAT_CHANNEL = {
2584 id => "chat",
2585 title => "Chat",
2586 reply => "chat ",
2587 tooltip => "Player chat and shouts, global to the server.",
2588};
1720 2589
1721# rough implementation of a future "reply" method that works 2590# rough implementation of a future "reply" method that works
1722# with dialog boxes. 2591# with dialog boxes.
1723#TODO: the first argument must go, split into a $npc->reply_to ( method 2592#TODO: the first argument must go, split into a $npc->reply_to ( method
1724sub cf::object::player::reply($$$;$) { 2593sub cf::object::player::reply($$$;$) {
1726 2595
1727 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2596 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1728 2597
1729 if ($self->{record_replies}) { 2598 if ($self->{record_replies}) {
1730 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2599 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2600
1731 } else { 2601 } else {
2602 my $pl = $self->contr;
2603
2604 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2605 my $dialog = $pl->{npc_dialog};
2606 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2607
2608 } else {
1732 $msg = $npc->name . " says: $msg" if $npc; 2609 $msg = $npc->name . " says: $msg" if $npc;
1733 $self->message ($msg, $flags); 2610 $self->send_msg ($SAY_CHANNEL => $msg, $flags);
2611 }
1734 } 2612 }
2613}
2614
2615=item $object->send_msg ($channel, $msg, $color, [extra...])
2616
2617=cut
2618
2619sub cf::object::send_msg {
2620 my $pl = shift->contr
2621 or return;
2622 $pl->send_msg (@_);
1735} 2623}
1736 2624
1737=item $player_object->may ("access") 2625=item $player_object->may ("access")
1738 2626
1739Returns wether the given player is authorized to access resource "access" 2627Returns wether the given player is authorized to access resource "access"
1752 2640
1753=item $player_object->enter_link 2641=item $player_object->enter_link
1754 2642
1755Freezes the player and moves him/her to a special map (C<{link}>). 2643Freezes the player and moves him/her to a special map (C<{link}>).
1756 2644
1757The player should be reasonably safe there for short amounts of time. You 2645The player should be reasonably safe there for short amounts of time (e.g.
1758I<MUST> call C<leave_link> as soon as possible, though. 2646for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2647though, as the player cannot control the character while it is on the link
2648map.
1759 2649
1760Will never block. 2650Will never block.
1761 2651
1762=item $player_object->leave_link ($map, $x, $y) 2652=item $player_object->leave_link ($map, $x, $y)
1763 2653
1783sub cf::object::player::enter_link { 2673sub cf::object::player::enter_link {
1784 my ($self) = @_; 2674 my ($self) = @_;
1785 2675
1786 $self->deactivate_recursive; 2676 $self->deactivate_recursive;
1787 2677
2678 ++$self->{_link_recursion};
2679
1788 return if UNIVERSAL::isa $self->map, "ext::map_link"; 2680 return if UNIVERSAL::isa $self->map, "ext::map_link";
1789 2681
1790 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 2682 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1791 if $self->map; 2683 if $self->map && $self->map->{path} ne "{link}";
1792 2684
1793 $self->enter_map ($LINK_MAP || link_map, 10, 10); 2685 $self->enter_map ($LINK_MAP || link_map, 3, 3);
1794} 2686}
1795 2687
1796sub cf::object::player::leave_link { 2688sub cf::object::player::leave_link {
1797 my ($self, $map, $x, $y) = @_; 2689 my ($self, $map, $x, $y) = @_;
2690
2691 return unless $self->contr->active;
1798 2692
1799 my $link_pos = delete $self->{_link_pos}; 2693 my $link_pos = delete $self->{_link_pos};
1800 2694
1801 unless ($map) { 2695 unless ($map) {
1802 # restore original map position 2696 # restore original map position
1813 ($x, $y) = (-1, -1) 2707 ($x, $y) = (-1, -1)
1814 unless (defined $x) && (defined $y); 2708 unless (defined $x) && (defined $y);
1815 2709
1816 # use -1 or undef as default coordinates, not 0, 0 2710 # use -1 or undef as default coordinates, not 0, 0
1817 ($x, $y) = ($map->enter_x, $map->enter_y) 2711 ($x, $y) = ($map->enter_x, $map->enter_y)
1818 if $x <=0 && $y <= 0; 2712 if $x <= 0 && $y <= 0;
1819 2713
1820 $map->load; 2714 $map->load;
1821 $map->load_diag; 2715 $map->load_neighbours;
1822 2716
1823 return unless $self->contr->active; 2717 return unless $self->contr->active;
2718
2719 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2720 if ($self->enter_map ($map, $x, $y)) {
2721 # entering was successful
2722 delete $self->{_link_recursion};
2723 # only activate afterwards, to support waiting in hooks
1824 $self->activate_recursive; 2724 $self->activate_recursive;
1825 $self->enter_map ($map, $x, $y);
1826}
1827
1828cf::player->attach (
1829 on_logout => sub {
1830 my ($pl) = @_;
1831
1832 # abort map switching before logout
1833 if ($pl->ob->{_link_pos}) {
1834 cf::sync_job {
1835 $pl->ob->leave_link
1836 };
1837 }
1838 }, 2725 }
1839 on_login => sub {
1840 my ($pl) = @_;
1841 2726
1842 # try to abort aborted map switching on player login :) 2727}
1843 # should happen only on crashes
1844 if ($pl->ob->{_link_pos}) {
1845 $pl->ob->enter_link;
1846 (async {
1847 # we need this sleep as the login has a concurrent enter_exit running
1848 # and this sleep increases chances of the player not ending up in scorn
1849 $pl->ob->reply (undef,
1850 "There was an internal problem at your last logout, "
1851 . "the server will try to bring you to your intended destination in a second.",
1852 cf::NDI_RED);
1853 Coro::Timer::sleep 1;
1854 $pl->ob->leave_link;
1855 })->prio (2);
1856 }
1857 },
1858);
1859 2728
1860=item $player_object->goto ($path, $x, $y) 2729=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1861 2730
2731Moves the player to the given map-path and coordinates by first freezing
2732her, loading and preparing them map, calling the provided $check callback
2733that has to return the map if sucecssful, and then unfreezes the player on
2734the new (success) or old (failed) map position. In either case, $done will
2735be called at the end of this process.
2736
2737Note that $check will be called with a potentially non-loaded map, so if
2738it needs a loaded map it has to call C<< ->load >>.
2739
1862=cut 2740=cut
2741
2742our $GOTOGEN;
1863 2743
1864sub cf::object::player::goto { 2744sub cf::object::player::goto {
1865 my ($self, $path, $x, $y) = @_; 2745 my ($self, $path, $x, $y, $check, $done) = @_;
2746
2747 if ($self->{_link_recursion} >= $MAX_LINKS) {
2748 error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
2749 $self->failmsg ("Something went wrong inside the server - please contact an administrator!");
2750 ($path, $x, $y) = @$EMERGENCY_POSITION;
2751 }
2752
2753 # do generation counting so two concurrent goto's will be executed in-order
2754 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1866 2755
1867 $self->enter_link; 2756 $self->enter_link;
1868 2757
1869 (async { 2758 (async {
2759 $Coro::current->{desc} = "player::goto $path $x $y";
2760
2761 # *tag paths override both path and x|y
2762 if ($path =~ /^\*(.*)$/) {
2763 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2764 my $ob = $obs[rand @obs];
2765
2766 # see if we actually can go there
2767 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2768 $ob = $obs[rand @obs];
2769 } else {
2770 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2771 }
2772 # else put us there anyways for now #d#
2773
2774 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2775 } else {
2776 ($path, $x, $y) = (undef, undef, undef);
2777 }
2778 }
2779
1870 my $map = eval { 2780 my $map = eval {
1871 my $map = cf::map::find $path; 2781 my $map = defined $path ? cf::map::find $path : undef;
2782
2783 if ($map) {
1872 $map = $map->customise_for ($self) if $map; 2784 $map = $map->customise_for ($self);
2785 $map = $check->($map, $x, $y, $self) if $check && $map;
2786 } else {
2787 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2788 }
2789
1873 $map 2790 $map
2791 };
2792
2793 if ($@) {
2794 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2795 LOG llevError | logBacktrace, Carp::longmess $@;
1874 } or 2796 }
1875 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1876 2797
2798 if ($gen == $self->{_goto_generation}) {
2799 delete $self->{_goto_generation};
1877 $self->leave_link ($map, $x, $y); 2800 $self->leave_link ($map, $x, $y);
2801 }
2802
2803 $done->($self) if $done;
1878 })->prio (1); 2804 })->prio (1);
1879} 2805}
1880 2806
1881=item $player_object->enter_exit ($exit_object) 2807=item $player_object->enter_exit ($exit_object)
1882 2808
1902} 2828}
1903 2829
1904sub prepare_random_map { 2830sub prepare_random_map {
1905 my ($exit) = @_; 2831 my ($exit) = @_;
1906 2832
1907 my $guard = cf::lock_acquire "exit_prepare:$exit";
1908
1909 # all this does is basically replace the /! path by 2833 # all this does is basically replace the /! path by
1910 # a new random map path (?random/...) with a seed 2834 # a new random map path (?random/...) with a seed
1911 # that depends on the exit object 2835 # that depends on the exit object
1912 2836
1913 my $rmp = parse_random_map_params $exit->msg; 2837 my $rmp = parse_random_map_params $exit->msg;
1915 if ($exit->map) { 2839 if ($exit->map) {
1916 $rmp->{region} = $exit->region->name; 2840 $rmp->{region} = $exit->region->name;
1917 $rmp->{origin_map} = $exit->map->path; 2841 $rmp->{origin_map} = $exit->map->path;
1918 $rmp->{origin_x} = $exit->x; 2842 $rmp->{origin_x} = $exit->x;
1919 $rmp->{origin_y} = $exit->y; 2843 $rmp->{origin_y} = $exit->y;
2844
2845 $exit->map->touch;
1920 } 2846 }
1921 2847
1922 $rmp->{random_seed} ||= $exit->random_seed; 2848 $rmp->{random_seed} ||= $exit->random_seed;
1923 2849
1924 my $data = cf::to_json $rmp; 2850 my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1925 my $md5 = Digest::MD5::md5_hex $data; 2851 my $md5 = Digest::MD5::md5_hex $data;
1926 my $meta = "$cf::RANDOM_MAPS/$md5.meta"; 2852 my $meta = "$RANDOMDIR/$md5.meta";
1927 2853
1928 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) { 2854 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1929 aio_write $fh, 0, (length $data), $data, 0; 2855 aio_write $fh, 0, (length $data), $data, 0;
1930 undef $fh; 2856 undef $fh;
1931 aio_rename "$meta~", $meta; 2857 aio_rename "$meta~", $meta;
1932 2858
2859 my $slaying = "?random/$md5";
2860
2861 if ($exit->valid) {
1933 $exit->slaying ("?random/$md5"); 2862 $exit->slaying ("?random/$md5");
1934 $exit->msg (undef); 2863 $exit->msg (undef);
2864 }
1935 } 2865 }
1936} 2866}
1937 2867
1938sub cf::object::player::enter_exit { 2868sub cf::object::player::enter_exit {
1939 my ($self, $exit) = @_; 2869 my ($self, $exit) = @_;
1940 2870
1941 return unless $self->type == cf::PLAYER; 2871 return unless $self->type == cf::PLAYER;
1942 2872
1943 if ($exit->slaying eq "/!") {
1944 #TODO: this should de-fi-ni-te-ly not be a sync-job
1945 cf::sync_job { prepare_random_map $exit };
1946 }
1947
1948 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949 my $hp = $exit->stats->hp;
1950 my $sp = $exit->stats->sp;
1951
1952 $self->enter_link; 2873 $self->enter_link;
1953 2874
1954 (async { 2875 (async {
1955 $self->deactivate_recursive; # just to be sure 2876 $Coro::current->{desc} = "enter_exit";
2877
1956 unless (eval { 2878 unless (eval {
2879 $self->deactivate_recursive; # just to be sure
2880
2881 # random map handling
2882 {
2883 my $guard = cf::lock_acquire "exit_prepare:$exit";
2884
2885 prepare_random_map $exit
2886 if $exit->slaying eq "/!";
2887 }
2888
2889 my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2890 my $x = $exit->stats->hp;
2891 my $y = $exit->stats->sp;
2892
1957 $self->goto ($slaying, $hp, $sp); 2893 $self->goto ($map, $x, $y);
1958 2894
2895 # if exit is damned, update players death & WoR home-position
2896 $self->contr->savebed ($map, $x, $y)
2897 if $exit->flag (cf::FLAG_DAMNED);
2898
1959 1; 2899 1
1960 }) { 2900 }) {
1961 $self->message ("Something went wrong deep within the crossfire server. " 2901 $self->message ("Something went wrong deep within the deliantra server. "
1962 . "I'll try to bring you back to the map you were before. " 2902 . "I'll try to bring you back to the map you were before. "
1963 . "Please report this to the dungeon master!", 2903 . "Please report this to the dungeon master!",
1964 cf::NDI_UNIQUE | cf::NDI_RED); 2904 cf::NDI_UNIQUE | cf::NDI_RED);
1965 2905
1966 warn "ERROR in enter_exit: $@"; 2906 error "ERROR in enter_exit: $@";
1967 $self->leave_link; 2907 $self->leave_link;
1968 } 2908 }
1969 })->prio (1); 2909 })->prio (1);
1970} 2910}
1971 2911
1982 2922
1983sub cf::client::send_drawinfo { 2923sub cf::client::send_drawinfo {
1984 my ($self, $text, $flags) = @_; 2924 my ($self, $text, $flags) = @_;
1985 2925
1986 utf8::encode $text; 2926 utf8::encode $text;
1987 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2927 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1988} 2928}
1989 2929
2930=item $client->send_big_packet ($pkt)
2931
2932Like C<send_packet>, but tries to compress large packets, and fragments
2933them as required.
2934
2935=cut
2936
2937our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
2938
2939sub cf::client::send_big_packet {
2940 my ($self, $pkt) = @_;
2941
2942 # try lzf for large packets
2943 $pkt = "lzf " . Compress::LZF::compress $pkt
2944 if 1024 <= length $pkt and $self->{can_lzf};
2945
2946 # split very large packets
2947 if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
2948 $self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
2949 $pkt = "frag";
2950 }
2951
2952 $self->send_packet ($pkt);
2953}
2954
2955=item $client->send_msg ($channel, $msg, $color, [extra...])
2956
2957Send a drawinfo or msg packet to the client, formatting the msg for the
2958client if neccessary. C<$type> should be a string identifying the type of
2959the message, with C<log> being the default. If C<$color> is negative, suppress
2960the message unless the client supports the msg packet.
2961
2962=cut
2963
2964# non-persistent channels (usually the info channel)
2965our %CHANNEL = (
2966 "c/motd" => {
2967 id => "infobox",
2968 title => "MOTD",
2969 reply => undef,
2970 tooltip => "The message of the day",
2971 },
2972 "c/identify" => {
2973 id => "infobox",
2974 title => "Identify",
2975 reply => undef,
2976 tooltip => "Items recently identified",
2977 },
2978 "c/examine" => {
2979 id => "infobox",
2980 title => "Examine",
2981 reply => undef,
2982 tooltip => "Signs and other items you examined",
2983 },
2984 "c/shopinfo" => {
2985 id => "infobox",
2986 title => "Shop Info",
2987 reply => undef,
2988 tooltip => "What your bargaining skill tells you about the shop",
2989 },
2990 "c/book" => {
2991 id => "infobox",
2992 title => "Book",
2993 reply => undef,
2994 tooltip => "The contents of a note or book",
2995 },
2996 "c/lookat" => {
2997 id => "infobox",
2998 title => "Look",
2999 reply => undef,
3000 tooltip => "What you saw there",
3001 },
3002 "c/who" => {
3003 id => "infobox",
3004 title => "Players",
3005 reply => undef,
3006 tooltip => "Shows players who are currently online",
3007 },
3008 "c/body" => {
3009 id => "infobox",
3010 title => "Body Parts",
3011 reply => undef,
3012 tooltip => "Shows which body parts you posess and are available",
3013 },
3014 "c/statistics" => {
3015 id => "infobox",
3016 title => "Statistics",
3017 reply => undef,
3018 tooltip => "Shows your primary statistics",
3019 },
3020 "c/skills" => {
3021 id => "infobox",
3022 title => "Skills",
3023 reply => undef,
3024 tooltip => "Shows your experience per skill and item power",
3025 },
3026 "c/shopitems" => {
3027 id => "infobox",
3028 title => "Shop Items",
3029 reply => undef,
3030 tooltip => "Shows the items currently for sale in this shop",
3031 },
3032 "c/resistances" => {
3033 id => "infobox",
3034 title => "Resistances",
3035 reply => undef,
3036 tooltip => "Shows your resistances",
3037 },
3038 "c/pets" => {
3039 id => "infobox",
3040 title => "Pets",
3041 reply => undef,
3042 tooltip => "Shows information abotu your pets/a specific pet",
3043 },
3044 "c/perceiveself" => {
3045 id => "infobox",
3046 title => "Perceive Self",
3047 reply => undef,
3048 tooltip => "You gained detailed knowledge about yourself",
3049 },
3050 "c/uptime" => {
3051 id => "infobox",
3052 title => "Uptime",
3053 reply => undef,
3054 tooltip => "How long the server has been running since last restart",
3055 },
3056 "c/mapinfo" => {
3057 id => "infobox",
3058 title => "Map Info",
3059 reply => undef,
3060 tooltip => "Information related to the maps",
3061 },
3062 "c/party" => {
3063 id => "party",
3064 title => "Party",
3065 reply => "gsay ",
3066 tooltip => "Messages and chat related to your party",
3067 },
3068 "c/death" => {
3069 id => "death",
3070 title => "Death",
3071 reply => undef,
3072 tooltip => "Reason for and more info about your most recent death",
3073 },
3074 "c/say" => $SAY_CHANNEL,
3075 "c/chat" => $CHAT_CHANNEL,
3076);
3077
3078sub cf::client::send_msg {
3079 my ($self, $channel, $msg, $color, @extra) = @_;
3080
3081 $msg = $self->pl->expand_cfpod ($msg)
3082 unless $color & cf::NDI_VERBATIM;
3083
3084 $color &= cf::NDI_CLIENT_MASK; # just in case...
3085
3086 # check predefined channels, for the benefit of C
3087 if ($CHANNEL{$channel}) {
3088 $channel = $CHANNEL{$channel};
3089
3090 $self->ext_msg (channel_info => $channel);
3091 $channel = $channel->{id};
3092
3093 } elsif (ref $channel) {
3094 # send meta info to client, if not yet sent
3095 unless (exists $self->{channel}{$channel->{id}}) {
3096 $self->{channel}{$channel->{id}} = $channel;
3097 $self->ext_msg (channel_info => $channel);
3098 }
3099
3100 $channel = $channel->{id};
3101 }
3102
3103 return unless @extra || length $msg;
3104
3105 # default colour, mask it out
3106 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
3107 if $color & cf::NDI_DEF;
3108
3109 my $pkt = "msg "
3110 . $self->{json_coder}->encode (
3111 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
3112 );
3113
3114 $self->send_big_packet ($pkt);
3115}
3116
3117=item $client->ext_msg ($type, @msg)
3118
3119Sends an ext event to the client.
3120
3121=cut
3122
3123sub cf::client::ext_msg($$@) {
3124 my ($self, $type, @msg) = @_;
3125
3126 if ($self->extcmd == 2) {
3127 $self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
3128 } elsif ($self->extcmd == 1) { # TODO: remove
3129 push @msg, msgtype => "event_$type";
3130 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3131 }
3132}
3133
3134=item $client->ext_reply ($msgid, @msg)
3135
3136Sends an ext reply to the client.
3137
3138=cut
3139
3140sub cf::client::ext_reply($$@) {
3141 my ($self, $id, @msg) = @_;
3142
3143 if ($self->extcmd == 2) {
3144 $self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
3145 } elsif ($self->extcmd == 1) {
3146 #TODO: version 1, remove
3147 unshift @msg, msgtype => "reply", msgid => $id;
3148 $self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
3149 }
3150}
1990 3151
1991=item $success = $client->query ($flags, "text", \&cb) 3152=item $success = $client->query ($flags, "text", \&cb)
1992 3153
1993Queues a query to the client, calling the given callback with 3154Queues a query to the client, calling the given callback with
1994the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 3155the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1995C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. 3156C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1996 3157
1997Queries can fail, so check the return code. Or don't, as queries will become 3158Queries can fail, so check the return code. Or don't, as queries will
1998reliable at some point in the future. 3159become reliable at some point in the future.
1999 3160
2000=cut 3161=cut
2001 3162
2002sub cf::client::query { 3163sub cf::client::query {
2003 my ($self, $flags, $text, $cb) = @_; 3164 my ($self, $flags, $text, $cb) = @_;
2011 utf8::encode $text; 3172 utf8::encode $text;
2012 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 3173 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2013 3174
2014 $self->send_packet ($self->{query_queue}[0][0]) 3175 $self->send_packet ($self->{query_queue}[0][0])
2015 if @{ $self->{query_queue} } == 1; 3176 if @{ $self->{query_queue} } == 1;
3177
3178 1
2016} 3179}
2017 3180
2018cf::client->attach ( 3181cf::client->attach (
3182 on_connect => sub {
3183 my ($ns) = @_;
3184
3185 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
3186 },
2019 on_reply => sub { 3187 on_reply => sub {
2020 my ($ns, $msg) = @_; 3188 my ($ns, $msg) = @_;
2021 3189
2022 # this weird shuffling is so that direct followup queries 3190 # this weird shuffling is so that direct followup queries
2023 # get handled first 3191 # get handled first
2035 } else { 3203 } else {
2036 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; 3204 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2037 } 3205 }
2038 } 3206 }
2039 }, 3207 },
3208 on_exticmd => sub {
3209 my ($ns, $buf) = @_;
3210
3211 my $msg = eval { $ns->{json_coder}->decode ($buf) };
3212
3213 if (ref $msg) {
3214 my ($type, $reply, @payload) =
3215 "ARRAY" eq ref $msg
3216 ? @$msg
3217 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
3218
3219 my @reply;
3220
3221 if (my $cb = $EXTICMD{$type}) {
3222 @reply = $cb->($ns, @payload);
3223 }
3224
3225 $ns->ext_reply ($reply, @reply)
3226 if $reply;
3227
3228 } else {
3229 error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
3230 }
3231
3232 cf::override;
3233 },
2040); 3234);
2041 3235
2042=item $client->async (\&cb) 3236=item $client->async (\&cb)
2043 3237
2044Create a new coroutine, running the specified callback. The coroutine will 3238Create a new coroutine, running the specified callback. The coroutine will
2060 3254
2061 $coro 3255 $coro
2062} 3256}
2063 3257
2064cf::client->attach ( 3258cf::client->attach (
2065 on_destroy => sub { 3259 on_client_destroy => sub {
2066 my ($ns) = @_; 3260 my ($ns) = @_;
2067 3261
2068 $_->cancel for values %{ (delete $ns->{_coro}) || {} }; 3262 $_->cancel for values %{ (delete $ns->{_coro}) || {} };
2069 }, 3263 },
2070); 3264);
2085our $safe = new Safe "safe"; 3279our $safe = new Safe "safe";
2086our $safe_hole = new Safe::Hole; 3280our $safe_hole = new Safe::Hole;
2087 3281
2088$SIG{FPE} = 'IGNORE'; 3282$SIG{FPE} = 'IGNORE';
2089 3283
2090$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 3284$safe->permit_only (Opcode::opset qw(
3285 :base_core :base_mem :base_orig :base_math :base_loop
3286 grepstart grepwhile mapstart mapwhile
3287 sort time
3288));
2091 3289
2092# here we export the classes and methods available to script code 3290# here we export the classes and methods available to script code
2093 3291
2094=pod 3292=pod
2095 3293
2096The following fucntions and emthods are available within a safe environment: 3294The following functions and methods are available within a safe environment:
2097 3295
2098 cf::object contr pay_amount pay_player map 3296 cf::object
3297 contr pay_amount pay_player map x y force_find force_add destroy
3298 insert remove name archname title slaying race decrease split
3299 value
3300
2099 cf::object::player player 3301 cf::object::player
2100 cf::player peaceful 3302 player
2101 cf::map trigger 3303
3304 cf::player
3305 peaceful
3306
3307 cf::map
3308 trigger
2102 3309
2103=cut 3310=cut
2104 3311
2105for ( 3312for (
2106 ["cf::object" => qw(contr pay_amount pay_player map)], 3313 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3314 insert remove inv nrof name archname title slaying race
3315 decrease split destroy change_exp value msg lore send_msg)],
2107 ["cf::object::player" => qw(player)], 3316 ["cf::object::player" => qw(player)],
2108 ["cf::player" => qw(peaceful)], 3317 ["cf::player" => qw(peaceful send_msg)],
2109 ["cf::map" => qw(trigger)], 3318 ["cf::map" => qw(trigger)],
2110) { 3319) {
2111 no strict 'refs';
2112 my ($pkg, @funs) = @$_; 3320 my ($pkg, @funs) = @$_;
2113 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3321 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2114 for @funs; 3322 for @funs;
2115} 3323}
2116 3324
2131 3339
2132 my $qcode = $code; 3340 my $qcode = $code;
2133 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3341 $qcode =~ s/"/‟/g; # not allowed in #line filenames
2134 $qcode =~ s/\n/\\n/g; 3342 $qcode =~ s/\n/\\n/g;
2135 3343
3344 %vars = (_dummy => 0) unless %vars;
3345
3346 my @res;
2136 local $_; 3347 local $_;
2137 local @safe::cf::_safe_eval_args = values %vars;
2138 3348
2139 my $eval = 3349 my $eval =
2140 "do {\n" 3350 "do {\n"
2141 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" 3351 . "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2142 . "#line 0 \"{$qcode}\"\n" 3352 . "#line 0 \"{$qcode}\"\n"
2143 . $code 3353 . $code
2144 . "\n}" 3354 . "\n}"
2145 ; 3355 ;
2146 3356
3357 if ($CFG{safe_eval}) {
2147 sub_generation_inc; 3358 sub_generation_inc;
3359 local @safe::cf::_safe_eval_args = values %vars;
2148 my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); 3360 @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2149 sub_generation_inc; 3361 sub_generation_inc;
3362 } else {
3363 local @cf::_safe_eval_args = values %vars;
3364 @res = wantarray ? eval eval : scalar eval $eval;
3365 }
2150 3366
2151 if ($@) { 3367 if ($@) {
2152 warn "$@"; 3368 warn "$@",
2153 warn "while executing safe code '$code'\n"; 3369 "while executing safe code '$code'\n",
2154 warn "with arguments " . (join " ", %vars) . "\n"; 3370 "with arguments " . (join " ", %vars) . "\n";
2155 } 3371 }
2156 3372
2157 wantarray ? @res : $res[0] 3373 wantarray ? @res : $res[0]
2158} 3374}
2159 3375
2173=cut 3389=cut
2174 3390
2175sub register_script_function { 3391sub register_script_function {
2176 my ($fun, $cb) = @_; 3392 my ($fun, $cb) = @_;
2177 3393
2178 no strict 'refs'; 3394 $fun = "safe::$fun" if $CFG{safe_eval};
2179 *{"safe::$fun"} = $safe_hole->wrap ($cb); 3395 *$fun = $safe_hole->wrap ($cb);
2180} 3396}
2181 3397
2182=back 3398=back
2183 3399
2184=cut 3400=cut
2185
2186#############################################################################
2187
2188=head2 EXTENSION DATABASE SUPPORT
2189
2190Crossfire maintains a very simple database for extension use. It can
2191currently store anything that can be serialised using Storable, which
2192excludes objects.
2193
2194The parameter C<$family> should best start with the name of the extension
2195using it, it should be unique.
2196
2197=over 4
2198
2199=item $value = cf::db_get $family => $key
2200
2201Returns a single value from the database.
2202
2203=item cf::db_put $family => $key => $value
2204
2205Stores the given C<$value> in the family.
2206
2207=cut
2208
2209our $DB;
2210
2211sub db_init {
2212 unless ($DB) {
2213 $DB = BDB::db_create $DB_ENV;
2214
2215 cf::sync_job {
2216 eval {
2217 $DB->set_flags (BDB::CHKSUM);
2218
2219 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221 cf::cleanup "db_open(db): $!" if $!;
2222 };
2223 cf::cleanup "db_open(db): $@" if $@;
2224 };
2225
2226 my $path = cf::localdir . "/database.pst";
2227 if (stat $path) {
2228 cf::sync_job {
2229 my $pst = Storable::retrieve $path;
2230
2231 cf::db_put (board => data => $pst->{board});
2232 cf::db_put (guildrules => data => $pst->{guildrules});
2233 cf::db_put (rent => balance => $pst->{rent}{balance});
2234 BDB::db_env_txn_checkpoint $DB_ENV;
2235
2236 unlink $path;
2237 };
2238 }
2239 }
2240}
2241
2242sub db_get($$) {
2243 my $key = "$_[0]/$_[1]";
2244
2245 cf::sync_job {
2246 BDB::db_get $DB, undef, $key, my $data;
2247
2248 $! ? ()
2249 : Compress::LZF::sthaw $data
2250 }
2251}
2252
2253sub db_put($$$) {
2254 BDB::dbreq_pri 4;
2255 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2256}
2257 3401
2258############################################################################# 3402#############################################################################
2259# the server's init and main functions 3403# the server's init and main functions
2260 3404
3405sub load_facedata($) {
3406 my ($path) = @_;
3407
3408 # HACK to clear player env face cache, we need some signal framework
3409 # for this (global event?)
3410 %ext::player_env::MUSIC_FACE_CACHE = ();
3411
3412 my $enc = JSON::XS->new->utf8->canonical->relaxed;
3413
3414 trace "loading facedata from $path\n";
3415
3416 0 < aio_load $path, my $facedata
3417 or die "$path: $!";
3418
3419 $facedata = Coro::Storable::thaw $facedata;
3420
3421 $facedata->{version} == 2
3422 or cf::cleanup "$path: version mismatch, cannot proceed.";
3423
3424 # patch in the exptable
3425 my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
3426 $facedata->{resource}{"res/exp_table"} = {
3427 type => FT_RSRC,
3428 data => $exp_table,
3429 hash => (Digest::MD5::md5 $exp_table),
3430 };
3431 cf::cede_to_tick;
3432
3433 {
3434 my $faces = $facedata->{faceinfo};
3435
3436 while (my ($face, $info) = each %$faces) {
3437 my $idx = (cf::face::find $face) || cf::face::alloc $face;
3438
3439 cf::face::set_visibility $idx, $info->{visibility};
3440 cf::face::set_magicmap $idx, $info->{magicmap};
3441 cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
3442 cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
3443
3444 cf::cede_to_tick;
3445 }
3446
3447 while (my ($face, $info) = each %$faces) {
3448 next unless $info->{smooth};
3449
3450 my $idx = cf::face::find $face
3451 or next;
3452
3453 if (my $smooth = cf::face::find $info->{smooth}) {
3454 cf::face::set_smooth $idx, $smooth;
3455 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3456 } else {
3457 error "smooth face '$info->{smooth}' not found for face '$face'";
3458 }
3459
3460 cf::cede_to_tick;
3461 }
3462 }
3463
3464 {
3465 my $anims = $facedata->{animinfo};
3466
3467 while (my ($anim, $info) = each %$anims) {
3468 cf::anim::set $anim, $info->{frames}, $info->{facings};
3469 cf::cede_to_tick;
3470 }
3471
3472 cf::anim::invalidate_all; # d'oh
3473 }
3474
3475 {
3476 my $res = $facedata->{resource};
3477
3478 while (my ($name, $info) = each %$res) {
3479 if (defined $info->{type}) {
3480 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3481
3482 cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
3483 cf::face::set_type $idx, $info->{type};
3484 } else {
3485 $RESOURCE{$name} = $info; # unused
3486 }
3487
3488 cf::cede_to_tick;
3489 }
3490 }
3491
3492 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3493
3494 1
3495}
3496
3497register_exticmd fx_want => sub {
3498 my ($ns, $want) = @_;
3499
3500 while (my ($k, $v) = each %$want) {
3501 $ns->fx_want ($k, $v);
3502 }
3503};
3504
2261sub load_resources { 3505sub load_resource_file($) {
2262 load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir 3506 my $guard = lock_acquire "load_resource_file";
3507
3508 my $status = load_resource_file_ $_[0];
3509 get_slot 0.1, 100;
3510 cf::arch::commit_load;
3511
3512 $status
3513}
3514
3515sub reload_regions {
3516 # HACK to clear player env face cache, we need some signal framework
3517 # for this (global event?)
3518 %ext::player_env::MUSIC_FACE_CACHE = ();
3519
3520 load_resource_file "$MAPDIR/regions"
2263 or die "unable to load regions file\n";#d# 3521 or die "unable to load regions file\n";
2264}
2265 3522
2266sub cfg_load { 3523 for (cf::region::list) {
2267 open my $fh, "<:utf8", cf::confdir . "/config" 3524 $_->{match} = qr/$_->{match}/
2268 or return; 3525 if exists $_->{match};
3526 }
3527}
2269 3528
2270 local $/; 3529sub reload_facedata {
2271 *CFG = YAML::Syck::Load <$fh>; 3530 load_facedata "$DATADIR/facedata"
3531 or die "unable to load facedata\n";
3532}
2272 3533
3534sub reload_archetypes {
3535 load_resource_file "$DATADIR/archetypes"
3536 or die "unable to load archetypes\n";
3537}
3538
3539sub reload_treasures {
3540 load_resource_file "$DATADIR/treasures"
3541 or die "unable to load treasurelists\n";
3542}
3543
3544sub reload_sound {
3545 trace "loading sound config from $DATADIR/sound\n";
3546
3547 0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
3548 or die "$DATADIR/sound $!";
3549
3550 my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
3551
3552 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3553 my $sound = $soundconf->{compat}[$_]
3554 or next;
3555
3556 my $face = cf::face::find "sound/$sound->[1]";
3557 cf::sound::set $sound->[0] => $face;
3558 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3559 }
3560
3561 while (my ($k, $v) = each %{$soundconf->{event}}) {
3562 my $face = cf::face::find "sound/$v";
3563 cf::sound::set $k => $face;
3564 }
3565}
3566
3567sub reload_resources {
3568 trace "reloading resource files...\n";
3569
3570 reload_exp_table;
3571 reload_materials;
3572 reload_facedata;
3573 reload_sound;
3574 reload_archetypes;
3575 reload_regions;
3576 reload_treasures;
3577
3578 trace "finished reloading resource files\n";
3579}
3580
3581sub reload_config {
3582 trace "reloading config file...\n";
3583
3584 0 < aio_load "$CONFDIR/config", my $config
3585 or die "$CONFDIR/config: $!";
3586
3587 utf8::decode $config;
3588 *CFG = yaml_load $config;
3589
2273 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 3590 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2274 3591
2275 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset}; 3592 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2276 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset}; 3593 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2277 3594
2278 if (exists $CFG{mlockall}) { 3595 if (exists $CFG{mlockall}) {
2282 }; 3599 };
2283 warn $@ if $@; 3600 warn $@ if $@;
2284 } 3601 }
2285} 3602}
2286 3603
2287sub init { 3604sub pidfile() {
2288 load_resources; 3605 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3606 or die "$PIDFILE: $!";
3607 flock $fh, &Fcntl::LOCK_EX
3608 or die "$PIDFILE: flock: $!";
3609 $fh
3610}
3611
3612# make sure only one server instance is running at any one time
3613sub atomic {
3614 my $fh = pidfile;
3615
3616 my $pid = <$fh>;
3617 kill 9, $pid if $pid > 0;
3618
3619 seek $fh, 0, 0;
3620 print $fh $$;
3621}
3622
3623sub main_loop {
3624 trace "EV::loop starting\n";
3625 if (1) {
3626 EV::loop;
3627 }
3628 trace "EV::loop returned\n";
3629 goto &main_loop unless $REALLY_UNLOOP;
2289} 3630}
2290 3631
2291sub main { 3632sub main {
3633 cf::init_globals; # initialise logging
3634
3635 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3636 LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3637 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3638 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3639
3640 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3641
2292 # we must not ever block the main coroutine 3642 # we must not ever block the main coroutine
2293 local $Coro::idle = sub { 3643 local $Coro::idle = sub {
2294 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3644 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2295 (async { 3645 (async {
2296 Event::one_event; 3646 $Coro::current->{desc} = "IDLE BUG HANDLER";
3647 EV::loop EV::LOOP_ONESHOT;
2297 })->prio (Coro::PRIO_MAX); 3648 })->prio (Coro::PRIO_MAX);
2298 }; 3649 };
2299 3650
2300 cfg_load; 3651 evthread_start IO::AIO::poll_fileno;
3652
3653 cf::sync_job {
3654 cf::incloader::init ();
3655
3656 cf::init_anim;
3657 cf::init_attackmess;
3658 cf::init_dynamic;
3659
3660 cf::load_settings;
3661
3662 reload_resources;
3663 reload_config;
2301 db_init; 3664 db_init;
3665
3666 cf::init_uuid;
3667 cf::init_signals;
3668 cf::init_skills;
3669
3670 cf::init_beforeplay;
3671
3672 atomic;
3673
2302 load_extensions; 3674 load_extensions;
2303 3675
2304 $TICK_WATCHER->start; 3676 utime time, time, $RUNTIMEFILE;
2305 Event::loop; 3677
3678 # no (long-running) fork's whatsoever before this point(!)
3679 use POSIX ();
3680 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3681
3682 cf::_post_init 0;
3683 };
3684
3685 cf::object::thawer::errors_are_fatal 0;
3686 info "parse errors in files are no longer fatal from this point on.\n";
3687
3688 my $free_main; $free_main = EV::idle sub {
3689 undef $free_main;
3690 undef &main; # free gobs of memory :)
3691 };
3692
3693 goto &main_loop;
2306} 3694}
2307 3695
2308############################################################################# 3696#############################################################################
2309# initialisation and cleanup 3697# initialisation and cleanup
2310 3698
2311# install some emergency cleanup handlers 3699# install some emergency cleanup handlers
2312BEGIN { 3700BEGIN {
3701 our %SIGWATCHER = ();
2313 for my $signal (qw(INT HUP TERM)) { 3702 for my $signal (qw(INT HUP TERM)) {
2314 Event->signal ( 3703 $SIGWATCHER{$signal} = AE::signal $signal, sub {
2315 reentrant => 0,
2316 data => WF_AUTOCANCEL,
2317 signal => $signal,
2318 prio => 0,
2319 cb => sub {
2320 cf::cleanup "SIG$signal"; 3704 cf::cleanup "SIG$signal";
2321 },
2322 ); 3705 };
3706 }
3707}
3708
3709sub write_runtime_sync {
3710 my $t0 = AE::time;
3711
3712 # first touch the runtime file to show we are still running:
3713 # the fsync below can take a very very long time.
3714
3715 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3716
3717 my $guard = cf::lock_acquire "write_runtime";
3718
3719 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
3720 or return;
3721
3722 my $value = $cf::RUNTIME + 90 + 10;
3723 # 10 is the runtime save interval, for a monotonic clock
3724 # 60 allows for the watchdog to kill the server.
3725
3726 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3727 and return;
3728
3729 # always fsync - this file is important
3730 aio_fsync $fh
3731 and return;
3732
3733 # touch it again to show we are up-to-date
3734 aio_utime $fh, undef, undef;
3735
3736 close $fh
3737 or return;
3738
3739 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3740 and return;
3741
3742 trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
3743
2323 } 3744 1
3745}
3746
3747our $uuid_lock;
3748our $uuid_skip;
3749
3750sub write_uuid_sync($) {
3751 $uuid_skip ||= $_[0];
3752
3753 return if $uuid_lock;
3754 local $uuid_lock = 1;
3755
3756 my $uuid = "$LOCALDIR/uuid";
3757
3758 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3759 or return;
3760
3761 my $value = uuid_seq uuid_cur;
3762
3763 unless ($value) {
3764 info "cowardly refusing to write zero uuid value!\n";
3765 return;
3766 }
3767
3768 my $value = uuid_str $value + $uuid_skip;
3769 $uuid_skip = 0;
3770
3771 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3772 and return;
3773
3774 # always fsync - this file is important
3775 aio_fsync $fh
3776 and return;
3777
3778 close $fh
3779 or return;
3780
3781 aio_rename "$uuid~", $uuid
3782 and return;
3783
3784 trace "uuid file written ($value).\n";
3785
3786 1
3787
3788}
3789
3790sub write_uuid($$) {
3791 my ($skip, $sync) = @_;
3792
3793 $sync ? write_uuid_sync $skip
3794 : async { write_uuid_sync $skip };
2324} 3795}
2325 3796
2326sub emergency_save() { 3797sub emergency_save() {
2327 my $freeze_guard = cf::freeze_mainloop; 3798 my $freeze_guard = cf::freeze_mainloop;
2328 3799
2329 warn "enter emergency perl save\n"; 3800 info "emergency_perl_save: enter\n";
3801
3802 # this is a trade-off: we want to be very quick here, so
3803 # save all maps without fsync, and later call a global sync
3804 # (which in turn might be very very slow)
3805 local $USE_FSYNC = 0;
2330 3806
2331 cf::sync_job { 3807 cf::sync_job {
3808 cf::write_runtime_sync; # external watchdog should not bark
3809
2332 # use a peculiar iteration method to avoid tripping on perl 3810 # use a peculiar iteration method to avoid tripping on perl
2333 # refcount bugs in for. also avoids problems with players 3811 # refcount bugs in for. also avoids problems with players
2334 # and maps saved/destroyed asynchronously. 3812 # and maps saved/destroyed asynchronously.
2335 warn "begin emergency player save\n"; 3813 info "emergency_perl_save: begin player save\n";
2336 for my $login (keys %cf::PLAYER) { 3814 for my $login (keys %cf::PLAYER) {
2337 my $pl = $cf::PLAYER{$login} or next; 3815 my $pl = $cf::PLAYER{$login} or next;
2338 $pl->valid or next; 3816 $pl->valid or next;
3817 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2339 $pl->save; 3818 $pl->save;
2340 } 3819 }
2341 warn "end emergency player save\n"; 3820 info "emergency_perl_save: end player save\n";
2342 3821
2343 warn "begin emergency map save\n"; 3822 cf::write_runtime_sync; # external watchdog should not bark
3823
3824 info "emergency_perl_save: begin map save\n";
2344 for my $path (keys %cf::MAP) { 3825 for my $path (keys %cf::MAP) {
2345 my $map = $cf::MAP{$path} or next; 3826 my $map = $cf::MAP{$path} or next;
2346 $map->valid or next; 3827 $map->valid or next;
2347 $map->save; 3828 $map->save;
2348 } 3829 }
2349 warn "end emergency map save\n"; 3830 info "emergency_perl_save: end map save\n";
2350 3831
2351 warn "begin emergency database checkpoint\n"; 3832 cf::write_runtime_sync; # external watchdog should not bark
3833
3834 info "emergency_perl_save: begin database checkpoint\n";
2352 BDB::db_env_txn_checkpoint $DB_ENV; 3835 BDB::db_env_txn_checkpoint $DB_ENV;
2353 warn "end emergency database checkpoint\n"; 3836 info "emergency_perl_save: end database checkpoint\n";
3837
3838 info "emergency_perl_save: begin write uuid\n";
3839 write_uuid_sync 1;
3840 info "emergency_perl_save: end write uuid\n";
3841
3842 cf::write_runtime_sync; # external watchdog should not bark
3843
3844 trace "emergency_perl_save: syncing database to disk";
3845 BDB::db_env_txn_checkpoint $DB_ENV;
3846
3847 info "emergency_perl_save: starting sync\n";
3848 IO::AIO::aio_sync sub {
3849 info "emergency_perl_save: finished sync\n";
3850 };
3851
3852 cf::write_runtime_sync; # external watchdog should not bark
3853
3854 trace "emergency_perl_save: flushing outstanding aio requests";
3855 while (IO::AIO::nreqs || BDB::nreqs) {
3856 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3857 }
3858
3859 cf::write_runtime_sync; # external watchdog should not bark
2354 }; 3860 };
2355 3861
2356 warn "leave emergency perl save\n"; 3862 info "emergency_perl_save: leave\n";
2357} 3863}
2358 3864
3865sub post_cleanup {
3866 my ($make_core) = @_;
3867
3868 IO::AIO::flush;
3869
3870 error Carp::longmess "post_cleanup backtrace"
3871 if $make_core;
3872
3873 my $fh = pidfile;
3874 unlink $PIDFILE if <$fh> == $$;
3875}
3876
3877# a safer delete_package, copied from Symbol
3878sub clear_package($) {
3879 my $pkg = shift;
3880
3881 # expand to full symbol table name if needed
3882 unless ($pkg =~ /^main::.*::$/) {
3883 $pkg = "main$pkg" if $pkg =~ /^::/;
3884 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3885 $pkg .= '::' unless $pkg =~ /::$/;
3886 }
3887
3888 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3889 my $stem_symtab = *{$stem}{HASH};
3890
3891 defined $stem_symtab and exists $stem_symtab->{$leaf}
3892 or return;
3893
3894 # clear all symbols
3895 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3896 for my $name (keys %$leaf_symtab) {
3897 _gv_clear *{"$pkg$name"};
3898# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3899 }
3900}
3901
2359sub reload() { 3902sub do_reload_perl() {
2360 # can/must only be called in main 3903 # can/must only be called in main
2361 if ($Coro::current != $Coro::main) { 3904 unless (in_main) {
2362 warn "can only reload from main coroutine"; 3905 error "can only reload from main coroutine";
2363 return; 3906 return;
2364 } 3907 }
2365 3908
2366 warn "reloading..."; 3909 return if $RELOAD++;
2367 3910
2368 warn "cancelling server ticker"; 3911 my $t1 = AE::time;
2369 $TICK_WATCHER->cancel;
2370 3912
3913 while ($RELOAD) {
3914 cf::get_slot 0.1, -1, "reload_perl";
3915 info "perl_reload: reloading...";
3916
3917 trace "perl_reload: entering sync_job";
3918
3919 cf::sync_job {
2371 cf::emergency_save; 3920 #cf::emergency_save;
2372 3921
2373 eval {
2374 # if anything goes wrong in here, we should simply crash as we already saved
2375
2376 warn "cancelling all WF_AUTOCANCEL watchers";
2377 for (Event::all_watchers) {
2378 $_->cancel if $_->data & WF_AUTOCANCEL;
2379 }
2380
2381 warn "syncing database to disk";
2382 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2383
2384 warn "flushing outstanding aio requests";
2385 for (;;) {
2386 BDB::flush;
2387 IO::AIO::flush;
2388 Coro::cede;
2389 last unless IO::AIO::nreqs || BDB::nreqs;
2390 warn "iterate...";
2391 }
2392
2393 warn "cancelling all extension coros"; 3922 trace "perl_reload: cancelling all extension coros";
2394 $_->cancel for values %EXT_CORO; 3923 $_->cancel for values %EXT_CORO;
2395 %EXT_CORO = (); 3924 %EXT_CORO = ();
2396 3925
2397 warn "removing commands"; 3926 trace "perl_reload: removing commands";
2398 %COMMAND = (); 3927 %COMMAND = ();
2399 3928
2400 warn "removing ext commands"; 3929 trace "perl_reload: removing ext/exti commands";
2401 %EXTCMD = (); 3930 %EXTCMD = ();
3931 %EXTICMD = ();
2402 3932
2403 warn "unloading/nuking all extensions"; 3933 trace "perl_reload: unloading/nuking all extensions";
2404 for my $pkg (@EXTS) { 3934 for my $pkg (@EXTS) {
2405 warn "... unloading $pkg"; 3935 trace "... unloading $pkg";
2406 3936
2407 if (my $cb = $pkg->can ("unload")) { 3937 if (my $cb = $pkg->can ("unload")) {
2408 eval { 3938 eval {
2409 $cb->($pkg); 3939 $cb->($pkg);
2410 1 3940 1
2411 } or warn "$pkg unloaded, but with errors: $@"; 3941 } or error "$pkg unloaded, but with errors: $@";
3942 }
3943
3944 trace "... clearing $pkg";
3945 clear_package $pkg;
2412 } 3946 }
2413 3947
2414 warn "... nuking $pkg";
2415 Symbol::delete_package $pkg;
2416 }
2417
2418 warn "unloading all perl modules loaded from $LIBDIR"; 3948 trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2419 while (my ($k, $v) = each %INC) { 3949 while (my ($k, $v) = each %INC) {
2420 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 3950 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2421 3951
2422 warn "... unloading $k"; 3952 trace "... unloading $k";
2423 delete $INC{$k}; 3953 delete $INC{$k};
2424 3954
2425 $k =~ s/\.pm$//; 3955 $k =~ s/\.pm$//;
2426 $k =~ s/\//::/g; 3956 $k =~ s/\//::/g;
2427 3957
2428 if (my $cb = $k->can ("unload_module")) { 3958 if (my $cb = $k->can ("unload_module")) {
2429 $cb->(); 3959 $cb->();
3960 }
3961
3962 clear_package $k;
2430 } 3963 }
2431 3964
2432 Symbol::delete_package $k;
2433 }
2434
2435 warn "getting rid of safe::, as good as possible"; 3965 trace "perl_reload: getting rid of safe::, as good as possible";
2436 Symbol::delete_package "safe::$_" 3966 clear_package "safe::$_"
2437 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3967 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2438 3968
2439 warn "unloading cf.pm \"a bit\""; 3969 trace "perl_reload: unloading cf.pm \"a bit\"";
2440 delete $INC{"cf.pm"}; 3970 delete $INC{"cf.pm"};
3971 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2441 3972
2442 # don't, removes xs symbols, too, 3973 # don't, removes xs symbols, too,
2443 # and global variables created in xs 3974 # and global variables created in xs
2444 #Symbol::delete_package __PACKAGE__; 3975 #clear_package __PACKAGE__;
2445 3976
2446 warn "unload completed, starting to reload now"; 3977 info "perl_reload: unload completed, starting to reload now";
2447 3978
2448 warn "reloading cf.pm"; 3979 trace "perl_reload: reloading cf.pm";
2449 require cf; 3980 require cf;
2450 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3981 cf::_connect_to_perl_1;
2451 3982
2452 warn "loading config and database again"; 3983 trace "perl_reload: loading config and database again";
2453 cf::cfg_load; 3984 cf::reload_config;
2454 3985
2455 warn "loading extensions"; 3986 trace "perl_reload: loading extensions";
2456 cf::load_extensions; 3987 cf::load_extensions;
2457 3988
3989 if ($REATTACH_ON_RELOAD) {
2458 warn "reattaching attachments to objects/players"; 3990 trace "perl_reload: reattaching attachments to objects/players";
2459 _global_reattach; 3991 _global_reattach; # objects, sockets
2460 warn "reattaching attachments to maps"; 3992 trace "perl_reload: reattaching attachments to maps";
2461 reattach $_ for values %MAP; 3993 reattach $_ for values %MAP;
3994 trace "perl_reload: reattaching attachments to players";
3995 reattach $_ for values %PLAYER;
3996 }
2462 3997
2463 warn "loading reloadable resources"; 3998 cf::_post_init 1;
2464 load_resources;
2465 3999
2466 warn "restarting server ticker"; 4000 trace "perl_reload: leaving sync_job";
2467 4001
2468 $TICK_WATCHER->start; 4002 1
4003 } or do {
4004 error $@;
4005 cf::cleanup "perl_reload: error, exiting.";
4006 };
4007
4008 --$RELOAD;
4009 }
4010
4011 $t1 = AE::time - $t1;
4012 info "perl_reload: completed in ${t1}s\n";
4013};
4014
4015our $RELOAD_WATCHER; # used only during reload
4016
4017sub reload_perl() {
4018 # doing reload synchronously and two reloads happen back-to-back,
4019 # coro crashes during coro_state_free->destroy here.
4020
4021 $RELOAD_WATCHER ||= cf::async {
4022 Coro::AIO::aio_wait cache_extensions;
4023
4024 $RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
4025 do_reload_perl;
4026 undef $RELOAD_WATCHER;
4027 };
2469 }; 4028 };
2470 4029}
2471 if ($@) {
2472 warn $@;
2473 warn "error while reloading, exiting.";
2474 exit 1;
2475 }
2476
2477 warn "reloaded";
2478};
2479
2480our $RELOAD_WATCHER; # used only during reload
2481 4030
2482register_command "reload" => sub { 4031register_command "reload" => sub {
2483 my ($who, $arg) = @_; 4032 my ($who, $arg) = @_;
2484 4033
2485 if ($who->flag (FLAG_WIZ)) { 4034 if ($who->flag (FLAG_WIZ)) {
2486 $who->message ("reloading server."); 4035 $who->message ("reloading server.");
2487 4036 async {
2488 # doing reload synchronously and two reloads happen back-to-back, 4037 $Coro::current->{desc} = "perl_reload";
2489 # coro crashes during coro_state_free->destroy here.
2490
2491 $RELOAD_WATCHER ||= Event->timer (
2492 reentrant => 0,
2493 after => 0,
2494 data => WF_AUTOCANCEL,
2495 cb => sub {
2496 reload; 4038 reload_perl;
2497 undef $RELOAD_WATCHER;
2498 },
2499 ); 4039 };
2500 } 4040 }
2501}; 4041};
2502 4042
2503unshift @INC, $LIBDIR; 4043#############################################################################
2504 4044
2505my $bug_warning = 0; 4045my $bug_warning = 0;
2506 4046
2507$TICK_WATCHER = Event->timer ( 4047our @WAIT_FOR_TICK;
2508 reentrant => 0, 4048our @WAIT_FOR_TICK_BEGIN;
2509 parked => 1, 4049
2510 prio => 0, 4050sub wait_for_tick() {
2511 at => $NEXT_TICK || $TICK, 4051 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2512 data => WF_AUTOCANCEL, 4052
2513 cb => sub { 4053 my $signal = new Coro::Signal;
4054 push @WAIT_FOR_TICK, $signal;
4055 $signal->wait;
4056}
4057
4058sub wait_for_tick_begin() {
4059 return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
4060
4061 my $signal = new Coro::Signal;
4062 push @WAIT_FOR_TICK_BEGIN, $signal;
4063 $signal->wait;
4064}
4065
4066sub tick {
2514 if ($Coro::current != $Coro::main) { 4067 if ($Coro::current != $Coro::main) {
2515 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 4068 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2516 unless ++$bug_warning > 10; 4069 unless ++$bug_warning > 10;
2517 return; 4070 return;
2518 } 4071 }
2519 4072
2520 $NOW = Event::time;
2521
2522 cf::server_tick; # one server iteration 4073 cf::server_tick; # one server iteration
2523 $RUNTIME += $TICK;
2524 $NEXT_TICK += $TICK;
2525 4074
2526 $WAIT_FOR_TICK->broadcast; 4075 #for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2527 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2528 4076
2529 Event::sweep; 4077 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2530 Coro::cede_notself; 4078 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
4079 Coro::async_pool {
4080 $Coro::current->{desc} = "runtime saver";
4081 write_runtime_sync
4082 or error "ERROR: unable to write runtime file: $!";
4083 };
4084 }
4085
4086 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
4087 $sig->send;
4088 }
4089 while (my $sig = shift @WAIT_FOR_TICK) {
4090 $sig->send;
4091 }
4092
4093 $LOAD = ($NOW - $TICK_START) / $TICK;
4094 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
4095
4096 if (0) {
4097 if ($NEXT_TICK) {
4098 my $jitter = $TICK_START - $NEXT_TICK;
4099 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
4100 debug "jitter $JITTER\n";#d#
2531 4101 }
2532# my $AFTER = Event::time;
2533# warn $AFTER - $NOW;#d#
2534
2535 # if we are delayed by four ticks or more, skip them all
2536 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2537
2538 $TICK_WATCHER->at ($NEXT_TICK);
2539 $TICK_WATCHER->start;
2540 }, 4102 }
2541); 4103}
2542 4104
2543{ 4105{
2544 BDB::max_poll_time $TICK * 0.1; 4106 # configure BDB
2545 $BDB_POLL_WATCHER = Event->io ( 4107
2546 reentrant => 0,
2547 fd => BDB::poll_fileno,
2548 poll => 'r',
2549 prio => 0,
2550 data => WF_AUTOCANCEL,
2551 cb => \&BDB::poll_cb,
2552 );
2553 BDB::min_parallel 8; 4108 BDB::min_parallel 16;
2554 4109 BDB::max_poll_reqs $TICK * 0.1;
2555 BDB::set_sync_prepare { 4110 $AnyEvent::BDB::WATCHER->priority (1);
2556 my $status;
2557 my $current = $Coro::current;
2558 (
2559 sub {
2560 $status = $!;
2561 $current->ready; undef $current;
2562 },
2563 sub {
2564 Coro::schedule while defined $current;
2565 $! = $status;
2566 },
2567 )
2568 };
2569 4111
2570 unless ($DB_ENV) { 4112 unless ($DB_ENV) {
2571 $DB_ENV = BDB::db_env_create; 4113 $DB_ENV = BDB::db_env_create;
4114 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
4115 $DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
4116 $DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
4117 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
4118 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2572 4119
2573 cf::sync_job { 4120 cf::sync_job {
2574 eval { 4121 eval {
2575 BDB::db_env_open 4122 BDB::db_env_open
2576 $DB_ENV, 4123 $DB_ENV,
2577 $BDB_ENV_DIR, 4124 $BDBDIR,
2578 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN 4125 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2579 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE, 4126 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2580 0666; 4127 0666;
2581 4128
2582 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!; 4129 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2583
2584 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2585 $DB_ENV->set_lk_detect;
2586 }; 4130 };
2587 4131
2588 cf::cleanup "db_env_open(db): $@" if $@; 4132 cf::cleanup "db_env_open(db): $@" if $@;
2589 }; 4133 };
2590 } 4134 }
4135
4136 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
4137 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
4138 };
4139 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
4140 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
4141 };
4142 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
4143 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
4144 };
2591} 4145}
2592 4146
2593{ 4147{
4148 # configure IO::AIO
4149
2594 IO::AIO::min_parallel 8; 4150 IO::AIO::min_parallel 8;
2595
2596 undef $Coro::AIO::WATCHER;
2597 IO::AIO::max_poll_time $TICK * 0.1; 4151 IO::AIO::max_poll_time $TICK * 0.1;
2598 $AIO_POLL_WATCHER = Event->io ( 4152 undef $AnyEvent::AIO::WATCHER;
2599 reentrant => 0,
2600 fd => IO::AIO::poll_fileno,
2601 poll => 'r',
2602 prio => 6,
2603 data => WF_AUTOCANCEL,
2604 cb => \&IO::AIO::poll_cb,
2605 );
2606} 4153}
2607 4154
2608$WRITE_RUNTIME_WATCHER = Event->timer ( 4155my $_log_backtrace;
2609 reentrant => 0, 4156
2610 data => WF_AUTOCANCEL, 4157sub _log_backtrace {
2611 after => 1, 4158 my ($msg, @addr) = @_;
2612 interval => 10, 4159
2613 prio => 6, # keep it lowest so it acts like a watchdog 4160 $msg =~ s/\n//;
2614 cb => Coro::unblock_sub { 4161
2615 write_runtime 4162 # limit the # of concurrent backtraces
2616 or warn "ERROR: unable to write runtime file: $!"; 4163 if ($_log_backtrace < 2) {
4164 ++$_log_backtrace;
4165 my $perl_bt = Carp::longmess $msg;
4166 async {
4167 $Coro::current->{desc} = "abt $msg";
4168
4169 my @bt = fork_call {
4170 @addr = map { sprintf "%x", $_ } @addr;
4171 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
4172 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
4173 or die "addr2line: $!";
4174
4175 my @funcs;
4176 my @res = <$fh>;
4177 chomp for @res;
4178 while (@res) {
4179 my ($func, $line) = splice @res, 0, 2, ();
4180 push @funcs, "[$func] $line";
4181 }
4182
4183 @funcs
4184 };
4185
4186 LOG llevInfo, "[ABT] $perl_bt\n";
4187 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
4188 LOG llevInfo, "[ABT] $_\n" for @bt;
4189 --$_log_backtrace;
4190 };
4191 } else {
4192 LOG llevInfo, "[ABT] $msg\n";
4193 LOG llevInfo, "[ABT] [suppressed]\n";
2617 }, 4194 }
2618); 4195}
4196
4197# load additional modules
4198require "cf/$_.pm" for @EXTRA_MODULES;
4199cf::_connect_to_perl_2;
2619 4200
2620END { cf::emergency_save } 4201END { cf::emergency_save }
2621 4202
26221 42031
2623 4204

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