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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.132 by root, Thu Jan 4 01:35:56 2007 UTC vs.
Revision 1.411 by root, Fri Feb 1 15:54:07 2008 UTC

… …
3use utf8; 3use utf8;
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Storable; 8use Socket;
9use EV 1.86;
9use Opcode; 10use Opcode;
10use Safe; 11use Safe;
11use Safe::Hole; 12use Safe::Hole;
13use Storable ();
12 14
13use Coro 3.3 (); 15use Coro 4.32 ();
16use Coro::State;
17use Coro::Handle;
14use Coro::Event; 18use Coro::EV;
15use Coro::Timer; 19use Coro::Timer;
16use Coro::Signal; 20use Coro::Signal;
17use Coro::Semaphore; 21use Coro::Semaphore;
18use Coro::AIO; 22use Coro::AIO;
23use Coro::BDB;
24use Coro::Storable;
25use Coro::Util ();
19 26
27use JSON::XS 2.01 ();
28use BDB ();
29use Data::Dumper;
20use Digest::MD5; 30use Digest::MD5;
21use Fcntl; 31use Fcntl;
32use YAML ();
22use IO::AIO 2.31 (); 33use IO::AIO 2.51 ();
23use YAML::Syck ();
24use Time::HiRes; 34use Time::HiRes;
35use Compress::LZF;
36use Digest::MD5 ();
25 37
26use Event; $Event::Eval = 1; # no idea why this is required, but it is 38# configure various modules to our taste
39#
40$Storable::canonical = 1; # reduce rsync transfers
41Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
42Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
27 43
28# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29$YAML::Syck::ImplicitUnicode = 1;
30
31$Coro::main->prio (2); # run main coroutine ("the server") with very high priority 44$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32 45
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 46sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 47
35our %COMMAND = (); 48our %COMMAND = ();
36our %COMMAND_TIME = (); 49our %COMMAND_TIME = ();
50
51our @EXTS = (); # list of extension package names
37our %EXTCMD = (); 52our %EXTCMD = ();
53our %EXTICMD = ();
54our %EXT_CORO = (); # coroutines bound to extensions
55our %EXT_MAP = (); # pluggable maps
38 56
57our $RELOAD; # number of reloads so far
39our @EVENT; 58our @EVENT;
40our $LIBDIR = datadir . "/ext";
41 59
42our $TICK = MAX_TIME * 1e-6; 60our $CONFDIR = confdir;
61our $DATADIR = datadir;
62our $LIBDIR = "$DATADIR/ext";
63our $PODDIR = "$DATADIR/pod";
64our $MAPDIR = "$DATADIR/" . mapdir;
65our $LOCALDIR = localdir;
66our $TMPDIR = "$LOCALDIR/" . tmpdir;
67our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69our $RANDOMDIR = "$LOCALDIR/random";
70our $BDBDIR = "$LOCALDIR/db";
71our %RESOURCE;
72
73our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43our $TICK_WATCHER; 74our $TICK_WATCHER;
75our $AIO_POLL_WATCHER;
76our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44our $NEXT_TICK; 77our $NEXT_TICK;
45our $NOW; 78our $USE_FSYNC = 1; # use fsync to write maps - default off
79
80our $BDB_POLL_WATCHER;
81our $BDB_DEADLOCK_WATCHER;
82our $BDB_CHECKPOINT_WATCHER;
83our $BDB_TRICKLE_WATCHER;
84our $DB_ENV;
46 85
47our %CFG; 86our %CFG;
48 87
49our $UPTIME; $UPTIME ||= time; 88our $UPTIME; $UPTIME ||= time;
50our $RUNTIME; 89our $RUNTIME;
90our $NOW;
51 91
52our %MAP; # all maps 92our (%PLAYER, %PLAYER_LOADING); # all users
53our $LINK_MAP; # the special {link} map 93our (%MAP, %MAP_LOADING ); # all maps
54our $FREEZE; 94our $LINK_MAP; # the special {link} map, which is always available
55our $RANDOM_MAPS = cf::localdir . "/random"; 95
56our %EXT_CORO; 96# used to convert map paths into valid unix filenames by replacing / by ∕
97our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
98
99our $LOAD; # a number between 0 (idle) and 1 (too many objects)
100our $LOADAVG; # same thing, but with alpha-smoothing
101our $tick_start; # for load detecting purposes
57 102
58binmode STDOUT; 103binmode STDOUT;
59binmode STDERR; 104binmode STDERR;
60 105
61# read virtual server time, if available 106# read virtual server time, if available
62unless ($RUNTIME || !-e cf::localdir . "/runtime") { 107unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63 open my $fh, "<", cf::localdir . "/runtime" 108 open my $fh, "<", "$LOCALDIR/runtime"
64 or die "unable to read runtime file: $!"; 109 or die "unable to read runtime file: $!";
65 $RUNTIME = <$fh> + 0.; 110 $RUNTIME = <$fh> + 0.;
66} 111}
67 112
68mkdir cf::localdir; 113mkdir $_
69mkdir cf::localdir . "/" . cf::playerdir; 114 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70mkdir cf::localdir . "/" . cf::tmpdir;
71mkdir cf::localdir . "/" . cf::uniquedir;
72mkdir $RANDOM_MAPS;
73 115
74# a special map that is always available
75our $LINK_MAP;
76our $EMERGENCY_POSITION; 116our $EMERGENCY_POSITION;
117
118sub cf::map::normalise;
77 119
78############################################################################# 120#############################################################################
79 121
80=head2 GLOBAL VARIABLES 122=head2 GLOBAL VARIABLES
81 123
… …
88=item $cf::RUNTIME 130=item $cf::RUNTIME
89 131
90The time this server has run, starts at 0 and is increased by $cf::TICK on 132The time this server has run, starts at 0 and is increased by $cf::TICK on
91every server tick. 133every server tick.
92 134
93=item $cf::LIBDIR 135=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
136$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
137$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94 138
95The perl library directory, where extensions and cf-specific modules can 139Various directories - "/etc", read-only install directory, perl-library
96be found. It will be added to C<@INC> automatically. 140directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
141unique-items directory, player file directory, random maps directory and
142database environment.
97 143
98=item $cf::NOW 144=item $cf::NOW
99 145
100The time of the last (current) server tick. 146The time of the last (current) server tick.
101 147
102=item $cf::TICK 148=item $cf::TICK
103 149
104The interval between server ticks, in seconds. 150The interval between server ticks, in seconds.
105 151
152=item $cf::LOADAVG
153
154The current CPU load on the server (alpha-smoothed), as a value between 0
155(none) and 1 (overloaded), indicating how much time is spent on processing
156objects per tick. Healthy values are < 0.5.
157
158=item $cf::LOAD
159
160The raw value load value from the last tick.
161
106=item %cf::CFG 162=item %cf::CFG
107 163
108Configuration for the server, loaded from C</etc/crossfire/config>, or 164Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109from wherever your confdir points to. 165from wherever your confdir points to.
166
167=item cf::wait_for_tick, cf::wait_for_tick_begin
168
169These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
170returns directly I<after> the tick processing (and consequently, can only wake one process
171per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
172
173=item @cf::INVOKE_RESULTS
174
175This array contains the results of the last C<invoke ()> call. When
176C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
177that call.
110 178
111=back 179=back
112 180
113=cut 181=cut
114 182
115BEGIN { 183BEGIN {
116 *CORE::GLOBAL::warn = sub { 184 *CORE::GLOBAL::warn = sub {
117 my $msg = join "", @_; 185 my $msg = join "", @_;
118 utf8::encode $msg;
119 186
120 $msg .= "\n" 187 $msg .= "\n"
121 unless $msg =~ /\n$/; 188 unless $msg =~ /\n$/;
122 189
190 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
191
123 LOG llevError, "cfperl: $msg"; 192 LOG llevError, $msg;
124 }; 193 };
125} 194}
195
196$Coro::State::DIEHOOK = sub {
197 return unless $^S eq 0; # "eq", not "=="
198
199 if ($Coro::current == $Coro::main) {#d#
200 warn "DIEHOOK called in main context, Coro bug?\n";#d#
201 return;#d#
202 }#d#
203
204 # kill coroutine otherwise
205 warn Carp::longmess $_[0];
206 Coro::terminate
207};
208
209$SIG{__DIE__} = sub { }; #d#?
126 210
127@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 211@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 212@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 213@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 214@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 215@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
216@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 217@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133 218
134# we bless all objects into (empty) derived classes to force a method lookup 219# we bless all objects into (empty) derived classes to force a method lookup
135# within the Safe compartment. 220# within the Safe compartment.
136for my $pkg (qw( 221for my $pkg (qw(
137 cf::global cf::attachable 222 cf::global cf::attachable
… …
142)) { 227)) {
143 no strict 'refs'; 228 no strict 'refs';
144 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 229 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145} 230}
146 231
147$Event::DIED = sub { 232$EV::DIED = sub {
148 warn "error in event callback: @_"; 233 warn "error in event callback: @_";
149}; 234};
150 235
151my %ext_pkg; 236#############################################################################
152my @exts;
153my @hook;
154 237
155=head2 UTILITY FUNCTIONS 238=head2 UTILITY FUNCTIONS
156 239
157=over 4 240=over 4
158 241
159=cut 242=item dumpval $ref
160 243
161use JSON::Syck (); # TODO# replace by JSON::PC once working 244=cut
162 245
246sub dumpval {
247 eval {
248 local $SIG{__DIE__};
249 my $d;
250 if (1) {
251 $d = new Data::Dumper([$_[0]], ["*var"]);
252 $d->Terse(1);
253 $d->Indent(2);
254 $d->Quotekeys(0);
255 $d->Useqq(1);
256 #$d->Bless(...);
257 $d->Seen($_[1]) if @_ > 1;
258 $d = $d->Dump();
259 }
260 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
261 $d
262 } || "[unable to dump $_[0]: '$@']";
263}
264
163=item $ref = cf::from_json $json 265=item $ref = cf::decode_json $json
164 266
165Converts a JSON string into the corresponding perl data structure. 267Converts a JSON string into the corresponding perl data structure.
166 268
167=cut
168
169sub from_json($) {
170 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171 JSON::Syck::Load $_[0]
172}
173
174=item $json = cf::to_json $ref 269=item $json = cf::encode_json $ref
175 270
176Converts a perl data structure into its JSON representation. 271Converts a perl data structure into its JSON representation.
177 272
178=cut 273=cut
179 274
180sub to_json($) { 275our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182 JSON::Syck::Dump $_[0]
183}
184 276
185=item my $guard = cf::guard { BLOCK } 277sub encode_json($) { $json_coder->encode ($_[0]) }
186 278sub decode_json($) { $json_coder->decode ($_[0]) }
187Run the given callback when the guard object gets destroyed (useful for
188coroutine cancellations).
189
190You can call C<< ->cancel >> on the guard object to stop the block from
191being executed.
192
193=cut
194
195sub guard(&) {
196 bless \(my $cb = $_[0]), cf::guard::;
197}
198
199sub cf::guard::cancel {
200 ${$_[0]} = sub { };
201}
202
203sub cf::guard::DESTROY {
204 ${$_[0]}->();
205}
206 279
207=item cf::lock_wait $string 280=item cf::lock_wait $string
208 281
209Wait until the given lock is available. See cf::lock_acquire. 282Wait until the given lock is available. See cf::lock_acquire.
210 283
211=item my $lock = cf::lock_acquire $string 284=item my $lock = cf::lock_acquire $string
212 285
213Wait until the given lock is available and then acquires it and returns 286Wait until the given lock is available and then acquires it and returns
214a guard object. If the guard object gets destroyed (goes out of scope, 287a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215for example when the coroutine gets canceled), the lock is automatically 288for example when the coroutine gets canceled), the lock is automatically
216returned. 289returned.
217 290
291Locks are *not* recursive, locking from the same coro twice results in a
292deadlocked coro.
293
218Lock names should begin with a unique identifier (for example, find_map 294Lock names should begin with a unique identifier (for example, cf::map::find
219uses map_find and load_map uses map_load). 295uses map_find and cf::map::load uses map_load).
296
297=item $locked = cf::lock_active $string
298
299Return true if the lock is currently active, i.e. somebody has locked it.
220 300
221=cut 301=cut
222 302
223our %LOCK; 303our %LOCK;
304our %LOCKER;#d#
224 305
225sub lock_wait($) { 306sub lock_wait($) {
226 my ($key) = @_; 307 my ($key) = @_;
308
309 if ($LOCKER{$key} == $Coro::current) {#d#
310 Carp::cluck "lock_wait($key) for already-acquired lock";#d#
311 return;#d#
312 }#d#
227 313
228 # wait for lock, if any 314 # wait for lock, if any
229 while ($LOCK{$key}) { 315 while ($LOCK{$key}) {
230 push @{ $LOCK{$key} }, $Coro::current; 316 push @{ $LOCK{$key} }, $Coro::current;
231 Coro::schedule; 317 Coro::schedule;
… …
237 323
238 # wait, to be sure we are not locked 324 # wait, to be sure we are not locked
239 lock_wait $key; 325 lock_wait $key;
240 326
241 $LOCK{$key} = []; 327 $LOCK{$key} = [];
328 $LOCKER{$key} = $Coro::current;#d#
242 329
243 cf::guard { 330 Coro::guard {
331 delete $LOCKER{$key};#d#
244 # wake up all waiters, to be on the safe side 332 # wake up all waiters, to be on the safe side
245 $_->ready for @{ delete $LOCK{$key} }; 333 $_->ready for @{ delete $LOCK{$key} };
246 } 334 }
247} 335}
248 336
337sub lock_active($) {
338 my ($key) = @_;
339
340 ! ! $LOCK{$key}
341}
342
343sub freeze_mainloop {
344 return unless $TICK_WATCHER->is_active;
345
346 my $guard = Coro::guard {
347 $TICK_WATCHER->start;
348 };
349 $TICK_WATCHER->stop;
350 $guard
351}
352
353=item cf::periodic $interval, $cb
354
355Like EV::periodic, but randomly selects a starting point so that the actions
356get spread over timer.
357
358=cut
359
360sub periodic($$) {
361 my ($interval, $cb) = @_;
362
363 my $start = rand List::Util::min 180, $interval;
364
365 EV::periodic $start, $interval, 0, $cb
366}
367
368=item cf::get_slot $time[, $priority[, $name]]
369
370Allocate $time seconds of blocking CPU time at priority C<$priority>:
371This call blocks and returns only when you have at least C<$time> seconds
372of cpu time till the next tick. The slot is only valid till the next cede.
373
374The optional C<$name> can be used to identify the job to run. It might be
375used for statistical purposes and should identify the same time-class.
376
377Useful for short background jobs.
378
379=cut
380
381our @SLOT_QUEUE;
382our $SLOT_QUEUE;
383
384$SLOT_QUEUE->cancel if $SLOT_QUEUE;
385$SLOT_QUEUE = Coro::async {
386 $Coro::current->desc ("timeslot manager");
387
388 my $signal = new Coro::Signal;
389
390 while () {
391 next_job:
392 my $avail = cf::till_tick;
393 if ($avail > 0.01) {
394 for (0 .. $#SLOT_QUEUE) {
395 if ($SLOT_QUEUE[$_][0] < $avail) {
396 my $job = splice @SLOT_QUEUE, $_, 1, ();
397 $job->[2]->send;
398 Coro::cede;
399 goto next_job;
400 }
401 }
402 }
403
404 if (@SLOT_QUEUE) {
405 # we do not use wait_for_tick() as it returns immediately when tick is inactive
406 push @cf::WAIT_FOR_TICK, $signal;
407 $signal->wait;
408 } else {
409 Coro::schedule;
410 }
411 }
412};
413
414sub get_slot($;$$) {
415 my ($time, $pri, $name) = @_;
416
417 $time = $TICK * .6 if $time > $TICK * .6;
418 my $sig = new Coro::Signal;
419
420 push @SLOT_QUEUE, [$time, $pri, $sig, $name];
421 @SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
422 $SLOT_QUEUE->ready;
423 $sig->wait;
424}
425
249=item cf::async { BLOCK } 426=item cf::async { BLOCK }
250 427
251Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the 428Currently the same as Coro::async_pool, meaning you cannot use
252error instead of exiting the server in case of a problem. 429C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
430thing you are allowed to do is call C<prio> on it.
253 431
254=cut 432=cut
255 433
256sub async(&) { 434BEGIN { *async = \&Coro::async_pool }
257 my ($cb) = @_;
258
259 Coro::async {
260 eval { $cb->() };
261 warn $@ if $@;
262 }
263}
264 435
265=item cf::sync_job { BLOCK } 436=item cf::sync_job { BLOCK }
266 437
267The design of crossfire+ requires that the main coro ($Coro::main) is 438The design of Deliantra requires that the main coroutine ($Coro::main)
268always able to handle events or runnable, as crossfire+ is only partly 439is always able to handle events or runnable, as Deliantra is only
269reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable. 440partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
441acceptable.
270 442
271If it must be done, put the blocking parts into C<sync_job>. This will run 443If it must be done, put the blocking parts into C<sync_job>. This will run
272the given BLOCK in another coroutine while waiting for the result. The 444the given BLOCK in another coroutine while waiting for the result. The
273server will be frozen during this time, so the block should either finish 445server will be frozen during this time, so the block should either finish
274fast or be very important. 446fast or be very important.
… …
277 449
278sub sync_job(&) { 450sub sync_job(&) {
279 my ($job) = @_; 451 my ($job) = @_;
280 452
281 if ($Coro::current == $Coro::main) { 453 if ($Coro::current == $Coro::main) {
454 my $time = EV::time;
455
282 # this is the main coro, too bad, we have to block 456 # this is the main coro, too bad, we have to block
283 # till the operation succeeds, freezing the server :/ 457 # till the operation succeeds, freezing the server :/
284 458
459 LOG llevError, Carp::longmess "sync job";#d#
460
285 # TODO: use suspend/resume instead 461 # TODO: use suspend/resume instead
286 # (but this is cancel-safe) 462 # (but this is cancel-safe)
287 local $FREEZE = 1; 463 my $freeze_guard = freeze_mainloop;
288 464
289 my $busy = 1; 465 my $busy = 1;
290 my @res; 466 my @res;
291 467
292 (Coro::async { 468 (async {
469 $Coro::current->desc ("sync job coro");
293 @res = eval { $job->() }; 470 @res = eval { $job->() };
294 warn $@ if $@; 471 warn $@ if $@;
295 undef $busy; 472 undef $busy;
296 })->prio (Coro::PRIO_MAX); 473 })->prio (Coro::PRIO_MAX);
297 474
298 while ($busy) { 475 while ($busy) {
476 if (Coro::nready) {
299 Coro::cede_notself; 477 Coro::cede_notself;
300 Event::one_event unless Coro::nready; 478 } else {
479 EV::loop EV::LOOP_ONESHOT;
301 } 480 }
481 }
482
483 $time = EV::time - $time;
484
485 LOG llevError | logBacktrace, Carp::longmess "long sync job"
486 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
487
488 $tick_start += $time; # do not account sync jobs to server load
302 489
303 wantarray ? @res : $res[0] 490 wantarray ? @res : $res[0]
304 } else { 491 } else {
305 # we are in another coroutine, how wonderful, everything just works 492 # we are in another coroutine, how wonderful, everything just works
306 493
307 $job->() 494 $job->()
308 } 495 }
309} 496}
310 497
311=item $coro = cf::coro { BLOCK } 498=item $coro = cf::async_ext { BLOCK }
312 499
313Creates and returns a new coro. This coro is automcatially being canceled 500Like async, but this coro is automatically being canceled when the
314when the extension calling this is being unloaded. 501extension calling this is being unloaded.
315 502
316=cut 503=cut
317 504
318sub coro(&) { 505sub async_ext(&) {
319 my $cb = shift; 506 my $cb = shift;
320 507
321 my $coro = &cf::async ($cb); 508 my $coro = &Coro::async ($cb);
322 509
323 $coro->on_destroy (sub { 510 $coro->on_destroy (sub {
324 delete $EXT_CORO{$coro+0}; 511 delete $EXT_CORO{$coro+0};
325 }); 512 });
326 $EXT_CORO{$coro+0} = $coro; 513 $EXT_CORO{$coro+0} = $coro;
327 514
328 $coro 515 $coro
329} 516}
330 517
331sub write_runtime { 518=item fork_call { }, $args
332 my $runtime = cf::localdir . "/runtime";
333 519
334 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 520Executes the given code block with the given arguments in a seperate
335 or return; 521process, returning the results. Everything must be serialisable with
522Coro::Storable. May, of course, block. Note that the executed sub may
523never block itself or use any form of event handling.
336 524
337 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 525=cut
338 (aio_write $fh, 0, (length $value), $value, 0) <= 0
339 and return;
340 526
341 aio_fsync $fh 527sub fork_call(&@) {
342 and return; 528 my ($cb, @args) = @_;
343 529
344 close $fh 530 # we seemingly have to make a local copy of the whole thing,
345 or return; 531 # otherwise perl prematurely frees the stuff :/
532 # TODO: investigate and fix (likely this will be rather laborious)
346 533
347 aio_rename "$runtime~", $runtime 534 my @res = Coro::Util::fork_eval {
348 and return; 535 reset_signals;
536 &$cb
537 }, @args;
349 538
539 wantarray ? @res : $res[-1]
540}
541
542=item $value = cf::db_get $family => $key
543
544Returns a single value from the environment database.
545
546=item cf::db_put $family => $key => $value
547
548Stores the given C<$value> in the family. It can currently store binary
549data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
550
551=item $db = cf::db_table "name"
552
553Create and/or open a new database table. The string must not be "db" and must be unique
554within each server.
555
556=cut
557
558sub db_table($) {
559 my ($name) = @_;
560 my $db = BDB::db_create $DB_ENV;
561
562 eval {
563 $db->set_flags (BDB::CHKSUM);
564
565 utf8::encode $name;
566 BDB::db_open $db, undef, $name, undef, BDB::BTREE,
567 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
568 cf::cleanup "db_open(db): $!" if $!;
569 };
570 cf::cleanup "db_open(db): $@" if $@;
571
572 $db
573}
574
575our $DB;
576
577sub db_init {
578 cf::sync_job {
579 $DB ||= db_table "db";
580 };
581}
582
583sub db_get($$) {
584 my $key = "$_[0]/$_[1]";
585
586 cf::sync_job {
587 BDB::db_get $DB, undef, $key, my $data;
588
589 $! ? ()
590 : $data
350 1 591 }
592}
593
594sub db_put($$$) {
595 BDB::dbreq_pri 4;
596 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
597}
598
599=item cf::cache $id => [$paths...], $processversion => $process
600
601Generic caching function that returns the value of the resource $id,
602caching and regenerating as required.
603
604This function can block.
605
606=cut
607
608sub cache {
609 my ($id, $src, $processversion, $process) = @_;
610
611 my $meta =
612 join "\x00",
613 $processversion,
614 map {
615 aio_stat $_
616 and Carp::croak "$_: $!";
617
618 ($_, (stat _)[7,9])
619 } @$src;
620
621 my $dbmeta = db_get cache => "$id/meta";
622 if ($dbmeta ne $meta) {
623 # changed, we may need to process
624
625 my @data;
626 my $md5;
627
628 for (0 .. $#$src) {
629 0 <= aio_load $src->[$_], $data[$_]
630 or Carp::croak "$src->[$_]: $!";
631 }
632
633 # if processing is expensive, check
634 # checksum first
635 if (1) {
636 $md5 =
637 join "\x00",
638 $processversion,
639 map {
640 cf::cede_to_tick;
641 ($src->[$_], Digest::MD5::md5_hex $data[$_])
642 } 0.. $#$src;
643
644
645 my $dbmd5 = db_get cache => "$id/md5";
646 if ($dbmd5 eq $md5) {
647 db_put cache => "$id/meta", $meta;
648
649 return db_get cache => "$id/data";
650 }
651 }
652
653 my $t1 = Time::HiRes::time;
654 my $data = $process->(\@data);
655 my $t2 = Time::HiRes::time;
656
657 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
658
659 db_put cache => "$id/data", $data;
660 db_put cache => "$id/md5" , $md5;
661 db_put cache => "$id/meta", $meta;
662
663 return $data;
664 }
665
666 db_get cache => "$id/data"
667}
668
669=item cf::datalog type => key => value, ...
670
671Log a datalog packet of the given type with the given key-value pairs.
672
673=cut
674
675sub datalog($@) {
676 my ($type, %kv) = @_;
677 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351} 678}
352 679
353=back 680=back
354 681
355=cut 682=cut
356
357#############################################################################
358
359package cf::path;
360
361sub new {
362 my ($class, $path, $base) = @_;
363
364 $path = $path->as_string if ref $path;
365
366 my $self = bless { }, $class;
367
368 # {... are special paths that are not touched
369 # ?xxx/... are special absolute paths
370 # ?random/... random maps
371 # /! non-realised random map exit
372 # /... normal maps
373 # ~/... per-player maps without a specific player (DO NOT USE)
374 # ~user/... per-player map of a specific user
375
376 if ($path =~ /^{/) {
377 # fine as it is
378 } elsif ($path =~ s{^\?random/}{}) {
379 Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380 $self->{random} = cf::from_json $data;
381 } else {
382 if ($path =~ s{^~([^/]+)?}{}) {
383 $self->{user_rel} = 1;
384
385 if (defined $1) {
386 $self->{user} = $1;
387 } elsif ($base =~ m{^~([^/]+)/}) {
388 $self->{user} = $1;
389 } else {
390 warn "cannot resolve user-relative path without user <$path,$base>\n";
391 }
392 } elsif ($path =~ /^\//) {
393 # already absolute
394 } else {
395 $base =~ s{[^/]+/?$}{};
396 return $class->new ("$base/$path");
397 }
398
399 for ($path) {
400 redo if s{/\.?/}{/};
401 redo if s{/[^/]+/\.\./}{/};
402 }
403 }
404
405 $self->{path} = $path;
406
407 $self
408}
409
410# the name / primary key / in-game path
411sub as_string {
412 my ($self) = @_;
413
414 $self->{user_rel} ? "~$self->{user}$self->{path}"
415 : $self->{random} ? "?random/$self->{path}"
416 : $self->{path}
417}
418
419# the displayed name, this is a one way mapping
420sub visible_name {
421 my ($self) = @_;
422
423# if (my $rmp = $self->{random}) {
424# # todo: be more intelligent about this
425# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426# } else {
427 $self->as_string
428# }
429}
430
431# escape the /'s in the path
432sub _escaped_path {
433 # ∕ is U+2215
434 (my $path = $_[0]{path}) =~ s/\//∕/g;
435 $path
436}
437
438# the original (read-only) location
439sub load_path {
440 my ($self) = @_;
441
442 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443}
444
445# the temporary/swap location
446sub save_path {
447 my ($self) = @_;
448
449 $self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450 : $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451 : sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452}
453
454# the unique path, might be eq to save_path
455sub uniq_path {
456 my ($self) = @_;
457
458 $self->{user_rel} || $self->{random}
459 ? undef
460 : sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461}
462
463# return random map parameters, or undef
464sub random_map_params {
465 my ($self) = @_;
466
467 $self->{random}
468}
469
470# this is somewhat ugly, but style maps do need special treatment
471sub is_style_map {
472 $_[0]{path} =~ m{^/styles/}
473}
474
475package cf;
476 683
477############################################################################# 684#############################################################################
478 685
479=head2 ATTACHABLE OBJECTS 686=head2 ATTACHABLE OBJECTS
480 687
… …
482attach callbacks/event handlers (a collection of which is called an "attachment") 689attach callbacks/event handlers (a collection of which is called an "attachment")
483to it. All such attachable objects support the following methods. 690to it. All such attachable objects support the following methods.
484 691
485In the following description, CLASS can be any of C<global>, C<object> 692In the following description, CLASS can be any of C<global>, C<object>
486C<player>, C<client> or C<map> (i.e. the attachable objects in 693C<player>, C<client> or C<map> (i.e. the attachable objects in
487crossfire+). 694Deliantra).
488 695
489=over 4 696=over 4
490 697
491=item $attachable->attach ($attachment, key => $value...) 698=item $attachable->attach ($attachment, key => $value...)
492 699
… …
606our @CB_TYPE = (); # registry for type (cf-object class) based events 813our @CB_TYPE = (); # registry for type (cf-object class) based events
607our @CB_MAP = (); 814our @CB_MAP = ();
608 815
609my %attachment; 816my %attachment;
610 817
818sub cf::attachable::thawer_merge {
819 # simply override everything except _meta
820 local $_[0]{_meta};
821 %{$_[0]} = %{$_[1]};
822}
823
611sub _attach_cb($$$$) { 824sub _attach_cb($$$$) {
612 my ($registry, $event, $prio, $cb) = @_; 825 my ($registry, $event, $prio, $cb) = @_;
613 826
614 use sort 'stable'; 827 use sort 'stable';
615 828
… …
649 $registry = $CB_TYPE[$object_type] ||= []; 862 $registry = $CB_TYPE[$object_type] ||= [];
650 863
651 } elsif ($type eq "subtype") { 864 } elsif ($type eq "subtype") {
652 defined $object_type or Carp::croak "subtype specified without type"; 865 defined $object_type or Carp::croak "subtype specified without type";
653 my $object_subtype = shift @arg; 866 my $object_subtype = shift @arg;
654 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 867 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655 868
656 } elsif ($type eq "package") { 869 } elsif ($type eq "package") {
657 my $pkg = shift @arg; 870 my $pkg = shift @arg;
658 871
659 while (my ($name, $id) = each %cb_id) { 872 while (my ($name, $id) = each %cb_id) {
… …
688 _attach $registry, $klass, @attach; 901 _attach $registry, $klass, @attach;
689 } 902 }
690 903
691 $obj->{$name} = \%arg; 904 $obj->{$name} = \%arg;
692 } else { 905 } else {
693 warn "object uses attachment '$name' that is not available, postponing.\n"; 906 warn "object uses attachment '$name' which is not available, postponing.\n";
694 } 907 }
695 908
696 $obj->{_attachment}{$name} = undef; 909 $obj->{_attachment}{$name} = undef;
697} 910}
698 911
… …
700 if (ref $_[0]) { 913 if (ref $_[0]) {
701 _object_attach @_; 914 _object_attach @_;
702 } else { 915 } else {
703 _attach shift->_attach_registry, @_; 916 _attach shift->_attach_registry, @_;
704 } 917 }
918 _recalc_want;
705}; 919};
706 920
707# all those should be optimised 921# all those should be optimised
708sub cf::attachable::detach { 922sub cf::attachable::detach {
709 my ($obj, $name) = @_; 923 my ($obj, $name) = @_;
… …
712 delete $obj->{_attachment}{$name}; 926 delete $obj->{_attachment}{$name};
713 reattach ($obj); 927 reattach ($obj);
714 } else { 928 } else {
715 Carp::croak "cannot, currently, detach class attachments"; 929 Carp::croak "cannot, currently, detach class attachments";
716 } 930 }
931 _recalc_want;
717}; 932};
718 933
719sub cf::attachable::attached { 934sub cf::attachable::attached {
720 my ($obj, $name) = @_; 935 my ($obj, $name) = @_;
721 936
… …
736 "; 951 ";
737 die if $@; 952 die if $@;
738} 953}
739 954
740our $override; 955our $override;
741our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? 956our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742 957
743sub override { 958sub override {
744 $override = 1; 959 $override = 1;
745 @invoke_results = (); 960 @INVOKE_RESULTS = (@_);
746} 961}
747 962
748sub do_invoke { 963sub do_invoke {
749 my $event = shift; 964 my $event = shift;
750 my $callbacks = shift; 965 my $callbacks = shift;
751 966
752 @invoke_results = (); 967 @INVOKE_RESULTS = ();
753 968
754 local $override; 969 local $override;
755 970
756 for (@$callbacks) { 971 for (@$callbacks) {
757 eval { &{$_->[1]} }; 972 eval { &{$_->[1]} };
… …
766 } 981 }
767 982
768 0 983 0
769} 984}
770 985
771=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) 986=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
772 987
773=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) 988=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
774 989
775Generate an object-specific event with the given arguments. 990Generate an object-specific event with the given arguments.
776 991
777This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be 992This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778removed in future versions), and there is no public API to access override 993removed in future versions), and there is no public API to access override
779results (if you must, access C<@cf::invoke_results> directly). 994results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780 995
781=back 996=back
782 997
783=cut 998=cut
784 999
785############################################################################# 1000#############################################################################
786# object support 1001# object support
1002
1003sub _object_equal($$);
1004sub _object_equal($$) {
1005 my ($a, $b) = @_;
1006
1007 return 0 unless (ref $a) eq (ref $b);
1008
1009 if ("HASH" eq ref $a) {
1010 my @ka = keys %$a;
1011 my @kb = keys %$b;
1012
1013 return 0 if @ka != @kb;
1014
1015 for (0 .. $#ka) {
1016 return 0 unless $ka[$_] eq $kb[$_];
1017 return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
1018 }
1019
1020 } elsif ("ARRAY" eq ref $a) {
1021
1022 return 0 if @$a != @$b;
1023
1024 for (0 .. $#$a) {
1025 return 0 unless _object_equal $a->[$_], $b->[$_];
1026 }
1027
1028 } elsif ($a ne $b) {
1029 return 0;
1030 }
1031
1032 1
1033}
1034
1035our $SLOW_MERGES;#d#
1036sub _can_merge {
1037 my ($ob1, $ob2) = @_;
1038
1039 ++$SLOW_MERGES;#d#
1040
1041 # we do the slow way here
1042 return _object_equal $ob1, $ob2
1043}
787 1044
788sub reattach { 1045sub reattach {
789 # basically do the same as instantiate, without calling instantiate 1046 # basically do the same as instantiate, without calling instantiate
790 my ($obj) = @_; 1047 my ($obj) = @_;
1048
1049 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791 1050
792 my $registry = $obj->registry; 1051 my $registry = $obj->registry;
793 1052
794 @$registry = (); 1053 @$registry = ();
795 1054
… …
810cf::attachable->attach ( 1069cf::attachable->attach (
811 prio => -1000000, 1070 prio => -1000000,
812 on_instantiate => sub { 1071 on_instantiate => sub {
813 my ($obj, $data) = @_; 1072 my ($obj, $data) = @_;
814 1073
815 $data = from_json $data; 1074 $data = decode_json $data;
816 1075
817 for (@$data) { 1076 for (@$data) {
818 my ($name, $args) = @$_; 1077 my ($name, $args) = @$_;
819 1078
820 $obj->attach ($name, %{$args || {} }); 1079 $obj->attach ($name, %{$args || {} });
… …
836sub object_freezer_save { 1095sub object_freezer_save {
837 my ($filename, $rdata, $objs) = @_; 1096 my ($filename, $rdata, $objs) = @_;
838 1097
839 sync_job { 1098 sync_job {
840 if (length $$rdata) { 1099 if (length $$rdata) {
1100 utf8::decode (my $decname = $filename);
841 warn sprintf "saving %s (%d,%d)\n", 1101 warn sprintf "saving %s (%d,%d)\n",
842 $filename, length $$rdata, scalar @$objs; 1102 $decname, length $$rdata, scalar @$objs;
843 1103
844 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 1104 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845 chmod SAVE_MODE, $fh; 1105 chmod SAVE_MODE, $fh;
846 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 1106 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847 aio_fsync $fh; 1107 aio_fsync $fh if $cf::USE_FSYNC;
848 close $fh; 1108 close $fh;
849 1109
850 if (@$objs) { 1110 if (@$objs) {
851 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 1111 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852 chmod SAVE_MODE, $fh; 1112 chmod SAVE_MODE, $fh;
853 my $data = Storable::nfreeze { version => 1, objs => $objs }; 1113 my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
854 aio_write $fh, 0, (length $data), $data, 0; 1114 aio_write $fh, 0, (length $data), $data, 0;
855 aio_fsync $fh; 1115 aio_fsync $fh if $cf::USE_FSYNC;
856 close $fh; 1116 close $fh;
857 aio_rename "$filename.pst~", "$filename.pst"; 1117 aio_rename "$filename.pst~", "$filename.pst";
858 } 1118 }
859 } else { 1119 } else {
860 aio_unlink "$filename.pst"; 1120 aio_unlink "$filename.pst";
… …
866 } 1126 }
867 } else { 1127 } else {
868 aio_unlink $filename; 1128 aio_unlink $filename;
869 aio_unlink "$filename.pst"; 1129 aio_unlink "$filename.pst";
870 } 1130 }
871 } 1131 };
872} 1132}
873 1133
874sub object_freezer_as_string { 1134sub object_freezer_as_string {
875 my ($rdata, $objs) = @_; 1135 my ($rdata, $objs) = @_;
876 1136
… …
888 or return; 1148 or return;
889 1149
890 unless (aio_stat "$filename.pst") { 1150 unless (aio_stat "$filename.pst") {
891 (aio_load "$filename.pst", $av) >= 0 1151 (aio_load "$filename.pst", $av) >= 0
892 or return; 1152 or return;
1153
893 $av = eval { (Storable::thaw $av)->{objs} }; 1154 my $st = eval { Coro::Storable::thaw $av };
1155 $av = $st->{objs};
894 } 1156 }
895 1157
1158 utf8::decode (my $decname = $filename);
896 warn sprintf "loading %s (%d)\n", 1159 warn sprintf "loading %s (%d,%d)\n",
897 $filename, length $data, scalar @{$av || []};#d# 1160 $decname, length $data, scalar @{$av || []};
1161
898 return ($data, $av); 1162 ($data, $av)
899} 1163}
1164
1165=head2 COMMAND CALLBACKS
1166
1167=over 4
1168
1169=cut
900 1170
901############################################################################# 1171#############################################################################
902# command handling &c 1172# command handling &c
903 1173
904=item cf::register_command $name => \&callback($ob,$args); 1174=item cf::register_command $name => \&callback($ob,$args);
… …
917 push @{ $COMMAND{$name} }, [$caller, $cb]; 1187 push @{ $COMMAND{$name} }, [$caller, $cb];
918} 1188}
919 1189
920=item cf::register_extcmd $name => \&callback($pl,$packet); 1190=item cf::register_extcmd $name => \&callback($pl,$packet);
921 1191
922Register a callbackf ro execution when the client sends an extcmd packet. 1192Register a callback for execution when the client sends an (synchronous)
1193extcmd packet. Ext commands will be processed in the order they are
1194received by the server, like other user commands. The first argument is
1195the logged-in player. Ext commands can only be processed after a player
1196has logged in successfully.
923 1197
924If the callback returns something, it is sent back as if reply was being 1198If the callback returns something, it is sent back as if reply was being
925called. 1199called.
926 1200
1201=item cf::register_exticmd $name => \&callback($ns,$packet);
1202
1203Register a callback for execution when the client sends an (asynchronous)
1204exticmd packet. Exti commands are processed by the server as soon as they
1205are received, i.e. out of order w.r.t. other commands. The first argument
1206is a client socket. Exti commands can be received anytime, even before
1207log-in.
1208
1209If the callback returns something, it is sent back as if reply was being
1210called.
1211
927=cut 1212=cut
928 1213
929sub register_extcmd { 1214sub register_extcmd {
930 my ($name, $cb) = @_; 1215 my ($name, $cb) = @_;
931 1216
932 my $caller = caller;
933 #warn "registering extcmd '$name' to '$caller'";
934
935 $EXTCMD{$name} = [$cb, $caller]; 1217 $EXTCMD{$name} = $cb;
1218}
1219
1220sub register_exticmd {
1221 my ($name, $cb) = @_;
1222
1223 $EXTICMD{$name} = $cb;
936} 1224}
937 1225
938cf::player->attach ( 1226cf::player->attach (
939 on_command => sub { 1227 on_command => sub {
940 my ($pl, $name, $params) = @_; 1228 my ($pl, $name, $params) = @_;
… …
949 cf::override; 1237 cf::override;
950 }, 1238 },
951 on_extcmd => sub { 1239 on_extcmd => sub {
952 my ($pl, $buf) = @_; 1240 my ($pl, $buf) = @_;
953 1241
954 my $msg = eval { from_json $buf }; 1242 my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955 1243
956 if (ref $msg) { 1244 if (ref $msg) {
1245 my ($type, $reply, @payload) =
1246 "ARRAY" eq ref $msg
1247 ? @$msg
1248 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
1249
1250 my @reply;
1251
957 if (my $cb = $EXTCMD{$msg->{msgtype}}) { 1252 if (my $cb = $EXTCMD{$type}) {
958 if (my %reply = $cb->[0]->($pl, $msg)) { 1253 @reply = $cb->($pl, @payload);
959 $pl->ext_reply ($msg->{msgid}, %reply);
960 }
961 } 1254 }
1255
1256 $pl->ext_reply ($reply, @reply)
1257 if $reply;
1258
962 } else { 1259 } else {
963 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; 1260 warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964 } 1261 }
965 1262
966 cf::override; 1263 cf::override;
967 }, 1264 },
968); 1265);
969 1266
970sub register {
971 my ($base, $pkg) = @_;
972
973 #TODO
974}
975
976sub load_extension { 1267sub load_extensions {
1268 cf::sync_job {
1269 my %todo;
1270
1271 for my $path (<$LIBDIR/*.ext>) {
1272 next unless -r $path;
1273
1274 $path =~ /([^\/\\]+)\.ext$/ or die "$path";
1275 my $base = $1;
1276 my $pkg = $1;
1277 $pkg =~ s/[^[:word:]]/_/g;
1278 $pkg = "ext::$pkg";
1279
1280 open my $fh, "<:utf8", $path
1281 or die "$path: $!";
1282
1283 my $source = do { local $/; <$fh> };
1284
1285 my %ext = (
1286 path => $path,
1287 base => $base,
1288 pkg => $pkg,
1289 );
1290
1291 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1292 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1293
1294 $ext{source} =
1295 "package $pkg; use strict; use utf8;\n"
1296 . "#line 1 \"$path\"\n{\n"
1297 . $source
1298 . "\n};\n1";
1299
1300 $todo{$base} = \%ext;
1301 }
1302
1303 my %done;
1304 while (%todo) {
1305 my $progress;
1306
1307 while (my ($k, $v) = each %todo) {
1308 for (split /,\s*/, $v->{meta}{depends}) {
1309 goto skip
1310 unless exists $done{$_};
1311 }
1312
1313 warn "... loading '$k' into '$v->{pkg}'\n";
1314
1315 unless (eval $v->{source}) {
1316 my $msg = $@ ? "$v->{path}: $@\n"
1317 : "$v->{base}: extension inactive.\n";
1318
1319 if (exists $v->{meta}{mandatory}) {
1320 warn $msg;
1321 cf::cleanup "mandatory extension failed to load, exiting.";
1322 }
1323
1324 warn $msg;
1325 }
1326
1327 $done{$k} = delete $todo{$k};
1328 push @EXTS, $v->{pkg};
1329 $progress = 1;
1330 }
1331
1332 skip:
1333 die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
1334 unless $progress;
1335 }
1336 };
1337}
1338
1339#############################################################################
1340
1341=back
1342
1343=head2 CORE EXTENSIONS
1344
1345Functions and methods that extend core crossfire objects.
1346
1347=cut
1348
1349package cf::player;
1350
1351use Coro::AIO;
1352
1353=head3 cf::player
1354
1355=over 4
1356
1357=item cf::player::num_playing
1358
1359Returns the official number of playing players, as per the Crossfire metaserver rules.
1360
1361=cut
1362
1363sub num_playing {
1364 scalar grep
1365 $_->ob->map
1366 && !$_->hidden
1367 && !$_->ob->flag (cf::FLAG_WIZ),
1368 cf::player::list
1369}
1370
1371=item cf::player::find $login
1372
1373Returns the given player object, loading it if necessary (might block).
1374
1375=cut
1376
1377sub playerdir($) {
1378 "$PLAYERDIR/"
1379 . (ref $_[0] ? $_[0]->ob->name : $_[0])
1380}
1381
1382sub path($) {
1383 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1384
1385 (playerdir $login) . "/playerdata"
1386}
1387
1388sub find_active($) {
1389 $cf::PLAYER{$_[0]}
1390 and $cf::PLAYER{$_[0]}->active
1391 and $cf::PLAYER{$_[0]}
1392}
1393
1394sub exists($) {
1395 my ($login) = @_;
1396
1397 $cf::PLAYER{$login}
1398 or cf::sync_job { !aio_stat path $login }
1399}
1400
1401sub find($) {
1402 return $cf::PLAYER{$_[0]} || do {
1403 my $login = $_[0];
1404
1405 my $guard = cf::lock_acquire "user_find:$login";
1406
1407 $cf::PLAYER{$_[0]} || do {
1408 # rename old playerfiles to new ones
1409 #TODO: remove when no longer required
1410 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1411 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1412 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1413 aio_unlink +(playerdir $login) . "/$login.pl";
1414
1415 my $f = new_from_file cf::object::thawer path $login
1416 or return;
1417
1418 my $pl = cf::player::load_pl $f
1419 or return;
1420 local $cf::PLAYER_LOADING{$login} = $pl;
1421 $f->resolve_delayed_derefs;
1422 $cf::PLAYER{$login} = $pl
1423 }
1424 }
1425}
1426
1427sub save($) {
1428 my ($pl) = @_;
1429
1430 return if $pl->{deny_save};
1431
1432 my $path = path $pl;
1433 my $guard = cf::lock_acquire "user_save:$path";
1434
1435 return if $pl->{deny_save};
1436
1437 aio_mkdir playerdir $pl, 0770;
1438 $pl->{last_save} = $cf::RUNTIME;
1439
1440 $pl->save_pl ($path);
1441 cf::cede_to_tick;
1442}
1443
1444sub new($) {
1445 my ($login) = @_;
1446
1447 my $self = create;
1448
1449 $self->ob->name ($login);
1450 $self->{deny_save} = 1;
1451
1452 $cf::PLAYER{$login} = $self;
1453
1454 $self
1455}
1456
1457=item $player->send_msg ($channel, $msg, $color, [extra...])
1458
1459=cut
1460
1461sub send_msg {
1462 my $ns = shift->ns
1463 or return;
1464 $ns->send_msg (@_);
1465}
1466
1467=item $pl->quit_character
1468
1469Nukes the player without looking back. If logged in, the connection will
1470be destroyed. May block for a long time.
1471
1472=cut
1473
1474sub quit_character {
1475 my ($pl) = @_;
1476
1477 my $name = $pl->ob->name;
1478
1479 $pl->{deny_save} = 1;
1480 $pl->password ("*"); # this should lock out the player until we nuked the dir
1481
1482 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1483 $pl->deactivate;
1484 $pl->invoke (cf::EVENT_PLAYER_QUIT);
1485 $pl->ns->destroy if $pl->ns;
1486
1487 my $path = playerdir $pl;
1488 my $temp = "$path~$cf::RUNTIME~deleting~";
1489 aio_rename $path, $temp;
1490 delete $cf::PLAYER{$pl->ob->name};
1491 $pl->destroy;
1492
1493 my $prefix = qr<^~\Q$name\E/>;
1494
1495 # nuke player maps
1496 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1497
1498 IO::AIO::aio_rmtree $temp;
1499}
1500
1501=item $pl->kick
1502
1503Kicks a player out of the game. This destroys the connection.
1504
1505=cut
1506
1507sub kick {
1508 my ($pl, $kicker) = @_;
1509
1510 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1511 $pl->killer ("kicked");
1512 $pl->ns->destroy;
1513}
1514
1515=item cf::player::list_logins
1516
1517Returns am arrayref of all valid playernames in the system, can take a
1518while and may block, so not sync_job-capable, ever.
1519
1520=cut
1521
1522sub list_logins {
1523 my $dirs = aio_readdir $PLAYERDIR
1524 or return [];
1525
1526 my @logins;
1527
1528 for my $login (@$dirs) {
1529 my $path = path $login;
1530
1531 # a .pst is a dead give-away for a valid player
1532 unless (-e "$path.pst") {
1533 my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1534 aio_read $fh, 0, 512, my $buf, 0 or next;
1535 $buf !~ /^password -------------$/m or next; # official not-valid tag
1536 }
1537
1538 utf8::decode $login;
1539 push @logins, $login;
1540 }
1541
1542 \@logins
1543}
1544
1545=item $player->maps
1546
1547Returns an arrayref of map paths that are private for this
1548player. May block.
1549
1550=cut
1551
1552sub maps($) {
1553 my ($pl) = @_;
1554
1555 $pl = ref $pl ? $pl->ob->name : $pl;
1556
1557 my $files = aio_readdir playerdir $pl
1558 or return;
1559
1560 my @paths;
1561
1562 for (@$files) {
1563 utf8::decode $_;
1564 next if /\.(?:pl|pst)$/;
1565 next unless /^$PATH_SEP/o;
1566
1567 push @paths, cf::map::normalise "~$pl/$_";
1568 }
1569
1570 \@paths
1571}
1572
1573=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
1574
1575Expand crossfire pod fragments into protocol xml.
1576
1577=cut
1578
1579use re 'eval';
1580
1581my $group;
1582my $interior; $interior = qr{
1583 # match a pod interior sequence sans C<< >>
1584 (?:
1585 \ (.*?)\ (?{ $group = $^N })
1586 | < (??{$interior}) >
1587 )
1588}x;
1589
1590sub expand_cfpod {
1591 my ($self, $pod) = @_;
1592
1593 my $xml;
1594
1595 while () {
1596 if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
1597 $group = $1;
1598
1599 $group =~ s/&/&amp;/g;
1600 $group =~ s/</&lt;/g;
1601
1602 $xml .= $group;
1603 } elsif ($pod =~ m%\G
1604 ([BCGHITU])
1605 <
1606 (?:
1607 ([^<>]*) (?{ $group = $^N })
1608 | < $interior >
1609 )
1610 >
1611 %gcsx
1612 ) {
1613 my ($code, $data) = ($1, $group);
1614
1615 if ($code eq "B") {
1616 $xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
1617 } elsif ($code eq "I") {
1618 $xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
1619 } elsif ($code eq "U") {
1620 $xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
1621 } elsif ($code eq "C") {
1622 $xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
1623 } elsif ($code eq "T") {
1624 $xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
1625 } elsif ($code eq "G") {
1626 my ($male, $female) = split /\|/, $data;
1627 $data = $self->gender ? $female : $male;
1628 $xml .= expand_cfpod ($self, $data);
1629 } elsif ($code eq "H") {
1630 $xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
1631 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1632 "")
1633 [$self->{hintmode}];
1634 } else {
1635 $xml .= "error processing '$code($data)' directive";
1636 }
1637 } else {
1638 if ($pod =~ /\G(.+)/) {
1639 warn "parse error while expanding $pod (at $1)";
1640 }
1641 last;
1642 }
1643 }
1644
1645 for ($xml) {
1646 # create single paragraphs (very hackish)
1647 s/(?<=\S)\n(?=\w)/ /g;
1648
1649 # compress some whitespace
1650 s/\s+\n/\n/g; # ws line-ends
1651 s/\n\n+/\n/g; # double lines
1652 s/^\n+//; # beginning lines
1653 s/\n+$//; # ending lines
1654 }
1655
1656 $xml
1657}
1658
1659no re 'eval';
1660
1661sub hintmode {
1662 $_[0]{hintmode} = $_[1] if @_ > 1;
1663 $_[0]{hintmode}
1664}
1665
1666=item $player->ext_reply ($msgid, @msg)
1667
1668Sends an ext reply to the player.
1669
1670=cut
1671
1672sub ext_reply($$@) {
1673 my ($self, $id, @msg) = @_;
1674
1675 $self->ns->ext_reply ($id, @msg)
1676}
1677
1678=item $player->ext_msg ($type, @msg)
1679
1680Sends an ext event to the client.
1681
1682=cut
1683
1684sub ext_msg($$@) {
1685 my ($self, $type, @msg) = @_;
1686
1687 $self->ns->ext_msg ($type, @msg);
1688}
1689
1690=head3 cf::region
1691
1692=over 4
1693
1694=cut
1695
1696package cf::region;
1697
1698=item cf::region::find_by_path $path
1699
1700Tries to decuce the likely region for a map knowing only its path.
1701
1702=cut
1703
1704sub find_by_path($) {
977 my ($path) = @_; 1705 my ($path) = @_;
978 1706
979 $path =~ /([^\/\\]+)\.ext$/ or die "$path"; 1707 my ($match, $specificity);
980 my $base = $1;
981 my $pkg = $1;
982 $pkg =~ s/[^[:word:]]/_/g;
983 $pkg = "ext::$pkg";
984 1708
985 warn "loading '$path' into '$pkg'\n"; 1709 for my $region (list) {
986 1710 if ($region->{match} && $path =~ $region->{match}) {
987 open my $fh, "<:utf8", $path 1711 ($match, $specificity) = ($region, $region->specificity)
988 or die "$path: $!"; 1712 if $region->specificity > $specificity;
989 1713 }
990 my $source =
991 "package $pkg; use strict; use utf8;\n"
992 . "#line 1 \"$path\"\n{\n"
993 . (do { local $/; <$fh> })
994 . "\n};\n1";
995
996 eval $source
997 or die $@ ? "$path: $@\n"
998 : "extension disabled.\n";
999
1000 push @exts, $pkg;
1001 $ext_pkg{$base} = $pkg;
1002
1003# no strict 'refs';
1004# @{"$pkg\::ISA"} = ext::;
1005
1006 register $base, $pkg;
1007}
1008
1009sub unload_extension {
1010 my ($pkg) = @_;
1011
1012 warn "removing extension $pkg\n";
1013
1014 # remove hooks
1015 #TODO
1016# for my $idx (0 .. $#PLUGIN_EVENT) {
1017# delete $hook[$idx]{$pkg};
1018# } 1714 }
1019 1715
1020 # remove commands 1716 $match
1021 for my $name (keys %COMMAND) {
1022 my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024 if (@cb) {
1025 $COMMAND{$name} = \@cb;
1026 } else {
1027 delete $COMMAND{$name};
1028 }
1029 }
1030
1031 # remove extcmds
1032 for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033 delete $EXTCMD{$name};
1034 }
1035
1036 if (my $cb = $pkg->can ("unload")) {
1037 eval {
1038 $cb->($pkg);
1039 1
1040 } or warn "$pkg unloaded, but with errors: $@";
1041 }
1042
1043 Symbol::delete_package $pkg;
1044}
1045
1046sub load_extensions {
1047 for my $ext (<$LIBDIR/*.ext>) {
1048 next unless -r $ext;
1049 eval {
1050 load_extension $ext;
1051 1
1052 } or warn "$ext not loaded: $@";
1053 }
1054}
1055
1056#############################################################################
1057# load/save/clean perl data associated with a map
1058
1059*cf::mapsupport::on_clean = sub {
1060 my ($map) = @_;
1061
1062 my $path = $map->tmpname;
1063 defined $path or return;
1064
1065 unlink "$path.pst";
1066};
1067
1068cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070#############################################################################
1071# load/save perl data associated with player->ob objects
1072
1073sub all_objects(@) {
1074 @_, map all_objects ($_->inv), @_
1075}
1076
1077# TODO: compatibility cruft, remove when no longer needed
1078cf::player->attach (
1079 on_load => sub {
1080 my ($pl, $path) = @_;
1081
1082 for my $o (all_objects $pl->ob) {
1083 if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084 $o->set_ob_key_value ("_perl_data");
1085
1086 %$o = %{ Storable::thaw pack "H*", $value };
1087 }
1088 }
1089 },
1090);
1091
1092#############################################################################
1093
1094=head2 CORE EXTENSIONS
1095
1096Functions and methods that extend core crossfire objects.
1097
1098=head3 cf::player
1099
1100=over 4
1101
1102=item cf::player::exists $login
1103
1104Returns true when the given account exists.
1105
1106=cut
1107
1108sub cf::player::exists($) {
1109 cf::player::find $_[0]
1110 or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111}
1112
1113=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115Sends an ext reply to the player.
1116
1117=cut
1118
1119sub cf::player::ext_reply($$$%) {
1120 my ($self, $id, %msg) = @_;
1121
1122 $msg{msgid} = $id;
1123
1124 $self->send ("ext " . to_json \%msg);
1125} 1717}
1126 1718
1127=back 1719=back
1128
1129 1720
1130=head3 cf::map 1721=head3 cf::map
1131 1722
1132=over 4 1723=over 4
1133 1724
… …
1136package cf::map; 1727package cf::map;
1137 1728
1138use Fcntl; 1729use Fcntl;
1139use Coro::AIO; 1730use Coro::AIO;
1140 1731
1732use overload
1733 '""' => \&as_string,
1734 fallback => 1;
1735
1141our $MAX_RESET = 7200; 1736our $MAX_RESET = 3600;
1142our $DEFAULT_RESET = 3600; 1737our $DEFAULT_RESET = 3000;
1143 1738
1144sub generate_random_map { 1739sub generate_random_map {
1145 my ($path, $rmp) = @_; 1740 my ($self, $rmp) = @_;
1146
1147 # mit "rum" bekleckern, nicht 1741 # mit "rum" bekleckern, nicht
1148 cf::map::_create_random_map 1742 $self->_create_random_map (
1149 $path,
1150 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1743 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1744 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1745 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153 $rmp->{exit_on_final_map}, 1746 $rmp->{exit_on_final_map},
1154 $rmp->{xsize}, $rmp->{ysize}, 1747 $rmp->{xsize}, $rmp->{ysize},
1155 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, 1748 $rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, 1749 $rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, 1750 $rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, 1751 $rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1752 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160 (cf::region::find $rmp->{region}) 1753 (cf::region::find $rmp->{region}), $rmp->{custom}
1754 )
1755}
1756
1757=item cf::map->register ($regex, $prio)
1758
1759Register a handler for the map path matching the given regex at the
1760givne priority (higher is better, built-in handlers have priority 0, the
1761default).
1762
1763=cut
1764
1765sub register {
1766 my (undef, $regex, $prio) = @_;
1767 my $pkg = caller;
1768
1769 no strict;
1770 push @{"$pkg\::ISA"}, __PACKAGE__;
1771
1772 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1773}
1774
1775# also paths starting with '/'
1776$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1777
1778sub thawer_merge {
1779 my ($self, $merge) = @_;
1780
1781 # we have to keep some variables in memory intact
1782 local $self->{path};
1783 local $self->{load_path};
1784
1785 $self->SUPER::thawer_merge ($merge);
1786}
1787
1788sub normalise {
1789 my ($path, $base) = @_;
1790
1791 $path = "$path"; # make sure its a string
1792
1793 $path =~ s/\.map$//;
1794
1795 # map plan:
1796 #
1797 # /! non-realised random map exit (special hack!)
1798 # {... are special paths that are not being touched
1799 # ?xxx/... are special absolute paths
1800 # ?random/... random maps
1801 # /... normal maps
1802 # ~user/... per-player map of a specific user
1803
1804 $path =~ s/$PATH_SEP/\//go;
1805
1806 # treat it as relative path if it starts with
1807 # something that looks reasonable
1808 if ($path =~ m{^(?:\./|\.\./|\w)}) {
1809 $base or Carp::carp "normalise called with relative path and no base: '$path'";
1810
1811 $base =~ s{[^/]+/?$}{};
1812 $path = "$base/$path";
1813 }
1814
1815 for ($path) {
1816 redo if s{//}{/};
1817 redo if s{/\.?/}{/};
1818 redo if s{/[^/]+/\.\./}{/};
1819 }
1820
1821 $path
1822}
1823
1824sub new_from_path {
1825 my (undef, $path, $base) = @_;
1826
1827 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1828
1829 $path = normalise $path, $base;
1830
1831 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1832 if ($path =~ $EXT_MAP{$pkg}[1]) {
1833 my $self = bless cf::map::new, $pkg;
1834 $self->{path} = $path; $self->path ($path);
1835 $self->init; # pass $1 etc.
1836 return $self;
1837 }
1838 }
1839
1840 Carp::cluck "unable to resolve path '$path' (base '$base').";
1841 ()
1842}
1843
1844sub init {
1845 my ($self) = @_;
1846
1847 $self
1848}
1849
1850sub as_string {
1851 my ($self) = @_;
1852
1853 "$self->{path}"
1854}
1855
1856# the displayed name, this is a one way mapping
1857sub visible_name {
1858 &as_string
1859}
1860
1861# the original (read-only) location
1862sub load_path {
1863 my ($self) = @_;
1864
1865 "$MAPDIR/$self->{path}.map"
1866}
1867
1868# the temporary/swap location
1869sub save_path {
1870 my ($self) = @_;
1871
1872 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1873 "$TMPDIR/$path.map"
1874}
1875
1876# the unique path, undef == no special unique path
1877sub uniq_path {
1878 my ($self) = @_;
1879
1880 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1881 "$UNIQUEDIR/$path"
1161} 1882}
1162 1883
1163# and all this just because we cannot iterate over 1884# and all this just because we cannot iterate over
1164# all maps in C++... 1885# all maps in C++...
1165sub change_all_map_light { 1886sub change_all_map_light {
… …
1167 1888
1168 $_->change_map_light ($change) 1889 $_->change_map_light ($change)
1169 for grep $_->outdoor, values %cf::MAP; 1890 for grep $_->outdoor, values %cf::MAP;
1170} 1891}
1171 1892
1893sub decay_objects {
1894 my ($self) = @_;
1895
1896 return if $self->{deny_reset};
1897
1898 $self->do_decay_objects;
1899}
1900
1901sub unlink_save {
1902 my ($self) = @_;
1903
1904 utf8::encode (my $save = $self->save_path);
1905 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1906 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1907}
1908
1172sub try_load_header($) { 1909sub load_header_from($) {
1173 my ($path) = @_; 1910 my ($self, $path) = @_;
1174 1911
1175 utf8::encode $path; 1912 utf8::encode $path;
1176 aio_open $path, O_RDONLY, 0 1913 my $f = new_from_file cf::object::thawer $path
1177 or return; 1914 or return;
1178 1915
1179 my $map = cf::map::new 1916 $self->_load_header ($f)
1180 or return; 1917 or return;
1181 1918
1182 $map->load_header ($path) 1919 local $MAP_LOADING{$self->{path}} = $self;
1920 $f->resolve_delayed_derefs;
1921
1922 $self->{load_path} = $path;
1923
1924 1
1925}
1926
1927sub load_header_orig {
1928 my ($self) = @_;
1929
1930 $self->load_header_from ($self->load_path)
1931}
1932
1933sub load_header_temp {
1934 my ($self) = @_;
1935
1936 $self->load_header_from ($self->save_path)
1937}
1938
1939sub prepare_temp {
1940 my ($self) = @_;
1941
1942 $self->last_access ((delete $self->{last_access})
1943 || $cf::RUNTIME); #d#
1944 # safety
1945 $self->{instantiate_time} = $cf::RUNTIME
1946 if $self->{instantiate_time} > $cf::RUNTIME;
1947}
1948
1949sub prepare_orig {
1950 my ($self) = @_;
1951
1952 $self->{load_original} = 1;
1953 $self->{instantiate_time} = $cf::RUNTIME;
1954 $self->last_access ($cf::RUNTIME);
1955 $self->instantiate;
1956}
1957
1958sub load_header {
1959 my ($self) = @_;
1960
1961 if ($self->load_header_temp) {
1962 $self->prepare_temp;
1963 } else {
1964 $self->load_header_orig
1183 or return; 1965 or return;
1966 $self->prepare_orig;
1967 }
1184 1968
1185 $map->{load_path} = $path; 1969 $self->{deny_reset} = 1
1970 if $self->no_reset;
1186 1971
1187 $map 1972 $self->default_region (cf::region::find_by_path $self->{path})
1188} 1973 unless $self->default_region;
1189 1974
1975 1
1976}
1977
1190sub find_map; 1978sub find;
1191sub find_map { 1979sub find {
1192 my ($path, $origin) = @_; 1980 my ($path, $origin) = @_;
1193 1981
1194 #warn "find_map<$path,$origin>\n";#d#
1195
1196 $path = new cf::path $path, $origin && $origin->path; 1982 $path = normalise $path, $origin && $origin->path;
1197 my $key = $path->as_string;
1198 1983
1984 cf::lock_wait "map_data:$path";#d#remove
1199 cf::lock_wait "map_find:$key"; 1985 cf::lock_wait "map_find:$path";
1200 1986
1201 $cf::MAP{$key} || do { 1987 $cf::MAP{$path} || do {
1202 my $guard = cf::lock_acquire "map_find:$key"; 1988 my $guard1 = cf::lock_acquire "map_find:$path";
1989 my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1203 1990
1204 # do it the slow way 1991 my $map = new_from_path cf::map $path
1205 my $map = try_load_header $path->save_path;
1206
1207 if ($map) {
1208 $map->last_access ((delete $map->{last_access})
1209 || $cf::RUNTIME); #d#
1210 # safety
1211 $map->{instantiate_time} = $cf::RUNTIME
1212 if $map->{instantiate_time} > $cf::RUNTIME;
1213 } else {
1214 if (my $rmp = $path->random_map_params) {
1215 $map = generate_random_map $key, $rmp;
1216 } else {
1217 $map = try_load_header $path->load_path;
1218 }
1219
1220 $map or return; 1992 or return;
1221 1993
1222 $map->{load_original} = 1;
1223 $map->{instantiate_time} = $cf::RUNTIME;
1224 $map->last_access ($cf::RUNTIME);
1225 $map->instantiate;
1226
1227 # per-player maps become, after loading, normal maps
1228 $map->per_player (0) if $path->{user_rel};
1229 }
1230
1231 $map->path ($key);
1232 $map->{path} = $path;
1233 $map->{last_save} = $cf::RUNTIME; 1994 $map->{last_save} = $cf::RUNTIME;
1234 1995
1235 if ($map->should_reset) { 1996 $map->load_header
1997 or return;
1998
1999 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
2000 # doing this can freeze the server in a sync job, obviously
2001 #$cf::WAIT_FOR_TICK->wait;
2002 undef $guard1;
2003 undef $guard2;
1236 $map->reset; 2004 $map->reset;
1237 undef $guard; 2005 return find $path;
1238 $map = find_map $path
1239 or return;
1240 } 2006 }
1241 2007
1242 $cf::MAP{$key} = $map 2008 $cf::MAP{$path} = $map
1243 } 2009 }
1244} 2010}
2011
2012sub pre_load { }
2013sub post_load { }
1245 2014
1246sub load { 2015sub load {
1247 my ($self) = @_; 2016 my ($self) = @_;
1248 2017
2018 local $self->{deny_reset} = 1; # loading can take a long time
2019
1249 my $path = $self->{path}; 2020 my $path = $self->{path};
2021
2022 {
1250 my $guard = cf::lock_acquire "map_load:" . $path->as_string; 2023 my $guard = cf::lock_acquire "map_data:$path";
1251 2024
2025 return unless $self->valid;
1252 return if $self->in_memory != cf::MAP_SWAPPED; 2026 return unless $self->in_memory == cf::MAP_SWAPPED;
1253 2027
1254 $self->in_memory (cf::MAP_LOADING); 2028 $self->in_memory (cf::MAP_LOADING);
1255 2029
1256 $self->alloc; 2030 $self->alloc;
1257 $self->load_objects ($self->{load_path}, 1) 2031
2032 $self->pre_load;
2033 cf::cede_to_tick;
2034
2035 my $f = new_from_file cf::object::thawer $self->{load_path};
2036 $f->skip_block;
2037 $self->_load_objects ($f)
1258 or return; 2038 or return;
1259 2039
1260 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 2040 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1261 if delete $self->{load_original}; 2041 if delete $self->{load_original};
1262 2042
1263 if (my $uniq = $path->uniq_path) { 2043 if (my $uniq = $self->uniq_path) {
1264 utf8::encode $uniq; 2044 utf8::encode $uniq;
1265 if (aio_open $uniq, O_RDONLY, 0) { 2045 unless (aio_stat $uniq) {
2046 if (my $f = new_from_file cf::object::thawer $uniq) {
1266 $self->clear_unique_items; 2047 $self->clear_unique_items;
1267 $self->load_objects ($uniq, 0); 2048 $self->_load_objects ($f);
2049 $f->resolve_delayed_derefs;
2050 }
1268 } 2051 }
1269 } 2052 }
1270 2053
2054 $f->resolve_delayed_derefs;
2055
2056 cf::cede_to_tick;
1271 # now do the right thing for maps 2057 # now do the right thing for maps
1272 $self->link_multipart_objects; 2058 $self->link_multipart_objects;
1273
1274 if ($self->{path}->is_style_map) {
1275 $self->{deny_save} = 1;
1276 $self->{deny_reset} = 1;
1277 } else {
1278 $self->fix_auto_apply;
1279 $self->decay_objects;
1280 $self->update_buttons;
1281 $self->set_darkness_map;
1282 $self->difficulty ($self->estimate_difficulty) 2059 $self->difficulty ($self->estimate_difficulty)
1283 unless $self->difficulty; 2060 unless $self->difficulty;
2061 cf::cede_to_tick;
2062
2063 unless ($self->{deny_activate}) {
2064 $self->decay_objects;
2065 $self->fix_auto_apply;
2066 $self->update_buttons;
2067 cf::cede_to_tick;
2068 $self->set_darkness_map;
2069 cf::cede_to_tick;
1284 $self->activate; 2070 $self->activate;
1285 } 2071 }
1286 2072
2073 $self->{last_save} = $cf::RUNTIME;
2074 $self->last_access ($cf::RUNTIME);
2075
1287 $self->in_memory (cf::MAP_IN_MEMORY); 2076 $self->in_memory (cf::MAP_IN_MEMORY);
1288} 2077 }
1289 2078
1290sub load_map_sync { 2079 $self->post_load;
2080}
2081
2082sub customise_for {
2083 my ($self, $ob) = @_;
2084
2085 return find "~" . $ob->name . "/" . $self->{path}
2086 if $self->per_player;
2087
2088# return find "?party/" . $ob->name . "/" . $self->{path}
2089# if $self->per_party;
2090
2091 $self
2092}
2093
2094# find and load all maps in the 3x3 area around a map
2095sub load_neighbours {
2096 my ($map) = @_;
2097
2098 my @neigh; # diagonal neighbours
2099
2100 for (0 .. 3) {
2101 my $neigh = $map->tile_path ($_)
2102 or next;
2103 $neigh = find $neigh, $map
2104 or next;
2105 $neigh->load;
2106
2107 push @neigh,
2108 [$neigh->tile_path (($_ + 3) % 4), $neigh],
2109 [$neigh->tile_path (($_ + 1) % 4), $neigh];
2110 }
2111
2112 for (grep defined $_->[0], @neigh) {
2113 my ($path, $origin) = @$_;
2114 my $neigh = find $path, $origin
2115 or next;
2116 $neigh->load;
2117 }
2118}
2119
2120sub find_sync {
1291 my ($path, $origin) = @_; 2121 my ($path, $origin) = @_;
1292 2122
1293 #warn "load_map_sync<$path, $origin>\n";#d# 2123 cf::sync_job { find $path, $origin }
2124}
1294 2125
1295 cf::sync_job { 2126sub do_load_sync {
1296 my $map = cf::map::find_map $path, $origin 2127 my ($map) = @_;
1297 or return; 2128
1298 $map->load; 2129 cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
1299 $map 2130 if $Coro::current == $Coro::main;
2131
2132 cf::sync_job { $map->load };
2133}
2134
2135our %MAP_PREFETCH;
2136our $MAP_PREFETCHER = undef;
2137
2138sub find_async {
2139 my ($path, $origin, $load) = @_;
2140
2141 $path = normalise $path, $origin && $origin->{path};
2142
2143 if (my $map = $cf::MAP{$path}) {
2144 return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
2145 }
2146
2147 $MAP_PREFETCH{$path} |= $load;
2148
2149 $MAP_PREFETCHER ||= cf::async {
2150 $Coro::current->{desc} = "map prefetcher";
2151
2152 while (%MAP_PREFETCH) {
2153 while (my ($k, $v) = each %MAP_PREFETCH) {
2154 if (my $map = find $k) {
2155 $map->load if $v;
2156 }
2157
2158 delete $MAP_PREFETCH{$k};
2159 }
2160 }
2161 undef $MAP_PREFETCHER;
1300 } 2162 };
2163 $MAP_PREFETCHER->prio (6);
2164
2165 ()
1301} 2166}
1302 2167
1303sub save { 2168sub save {
1304 my ($self) = @_; 2169 my ($self) = @_;
1305 2170
2171 my $lock = cf::lock_acquire "map_data:$self->{path}";
2172
1306 $self->{last_save} = $cf::RUNTIME; 2173 $self->{last_save} = $cf::RUNTIME;
1307 2174
1308 return unless $self->dirty; 2175 return unless $self->dirty;
1309 2176
1310 my $save = $self->{path}->save_path; utf8::encode $save; 2177 my $save = $self->save_path; utf8::encode $save;
1311 my $uniq = $self->{path}->uniq_path; utf8::encode $uniq; 2178 my $uniq = $self->uniq_path; utf8::encode $uniq;
1312 2179
1313 $self->{load_path} = $save; 2180 $self->{load_path} = $save;
1314 2181
1315 return if $self->{deny_save}; 2182 return if $self->{deny_save};
1316 2183
1317 local $self->{last_access} = $self->last_access;#d# 2184 local $self->{last_access} = $self->last_access;#d#
1318 2185
2186 cf::async {
2187 $Coro::current->{desc} = "map player save";
2188 $_->contr->save for $self->players;
2189 };
2190
1319 if ($uniq) { 2191 if ($uniq) {
1320 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); 2192 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1321 $self->save_objects ($uniq, cf::IO_UNIQUES); 2193 $self->_save_objects ($uniq, cf::IO_UNIQUES);
1322 } else { 2194 } else {
1323 $self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); 2195 $self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1324 } 2196 }
1325} 2197}
1326 2198
1327sub swap_out { 2199sub swap_out {
1328 my ($self) = @_; 2200 my ($self) = @_;
1329 2201
1330 # save first because save cedes 2202 # save first because save cedes
1331 $self->save; 2203 $self->save;
2204
2205 my $lock = cf::lock_acquire "map_data:$self->{path}";
1332 2206
1333 return if $self->players; 2207 return if $self->players;
1334 return if $self->in_memory != cf::MAP_IN_MEMORY; 2208 return if $self->in_memory != cf::MAP_IN_MEMORY;
1335 return if $self->{deny_save}; 2209 return if $self->{deny_save};
1336 2210
2211 $self->in_memory (cf::MAP_SWAPPED);
2212
2213 $self->deactivate;
2214 $_->clear_links_to ($self) for values %cf::MAP;
1337 $self->clear; 2215 $self->clear;
1338 $self->in_memory (cf::MAP_SWAPPED);
1339} 2216}
1340 2217
1341sub reset_at { 2218sub reset_at {
1342 my ($self) = @_; 2219 my ($self) = @_;
1343 2220
1344 # TODO: safety, remove and allow resettable per-player maps 2221 # TODO: safety, remove and allow resettable per-player maps
1345 return 1e99 if $self->{path}{user_rel};
1346 return 1e99 if $self->{deny_reset}; 2222 return 1e99 if $self->{deny_reset};
1347 2223
1348 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 2224 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1349 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 2225 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1350 2226
… …
1355 my ($self) = @_; 2231 my ($self) = @_;
1356 2232
1357 $self->reset_at <= $cf::RUNTIME 2233 $self->reset_at <= $cf::RUNTIME
1358} 2234}
1359 2235
1360sub unlink_save {
1361 my ($self) = @_;
1362
1363 utf8::encode (my $save = $self->{path}->save_path);
1364 aioreq_pri 3; IO::AIO::aio_unlink $save;
1365 aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1366}
1367
1368sub rename {
1369 my ($self, $new_path) = @_;
1370
1371 $self->unlink_save;
1372
1373 delete $cf::MAP{$self->path};
1374 $self->{path} = new cf::path $new_path;
1375 $self->path ($self->{path}->as_string);
1376 $cf::MAP{$self->path} = $self;
1377
1378 $self->save;
1379}
1380
1381sub reset { 2236sub reset {
1382 my ($self) = @_; 2237 my ($self) = @_;
1383 2238
2239 my $lock = cf::lock_acquire "map_data:$self->{path}";
2240
1384 return if $self->players; 2241 return if $self->players;
1385 return if $self->{path}{user_rel};#d#
1386 2242
1387 warn "resetting map ", $self->path;#d# 2243 warn "resetting map ", $self->path;
2244
2245 $self->in_memory (cf::MAP_SWAPPED);
2246
2247 # need to save uniques path
2248 unless ($self->{deny_save}) {
2249 my $uniq = $self->uniq_path; utf8::encode $uniq;
2250
2251 $self->_save_objects ($uniq, cf::IO_UNIQUES)
2252 if $uniq;
2253 }
1388 2254
1389 delete $cf::MAP{$self->path}; 2255 delete $cf::MAP{$self->path};
1390 2256
2257 $self->deactivate;
1391 $_->clear_links_to ($self) for values %cf::MAP; 2258 $_->clear_links_to ($self) for values %cf::MAP;
2259 $self->clear;
1392 2260
1393 $self->unlink_save; 2261 $self->unlink_save;
1394 $self->destroy; 2262 $self->destroy;
1395} 2263}
1396 2264
1397my $nuke_counter = "aaaa"; 2265my $nuke_counter = "aaaa";
1398 2266
1399sub nuke { 2267sub nuke {
1400 my ($self) = @_; 2268 my ($self) = @_;
1401 2269
2270 {
2271 my $lock = cf::lock_acquire "map_data:$self->{path}";
2272
2273 delete $cf::MAP{$self->path};
2274
2275 $self->unlink_save;
2276
2277 bless $self, "cf::map";
2278 delete $self->{deny_reset};
1402 $self->{deny_save} = 1; 2279 $self->{deny_save} = 1;
1403 $self->reset_timeout (1); 2280 $self->reset_timeout (1);
1404 $self->rename ("{nuke}/" . ($nuke_counter++)); 2281 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
2282
2283 $cf::MAP{$self->path} = $self;
2284 }
2285
1405 $self->reset; # polite request, might not happen 2286 $self->reset; # polite request, might not happen
1406} 2287}
1407 2288
1408sub customise_for { 2289=item $maps = cf::map::tmp_maps
1409 my ($map, $ob) = @_;
1410 2290
1411 if ($map->per_player) { 2291Returns an arrayref with all map paths of currently instantiated and saved
1412 return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path}; 2292maps. May block.
2293
2294=cut
2295
2296sub tmp_maps() {
1413 } 2297 [
1414 2298 map {
1415 $map 2299 utf8::decode $_;
2300 /\.map$/
2301 ? normalise $_
2302 : ()
2303 } @{ aio_readdir $TMPDIR or [] }
2304 ]
1416} 2305}
1417 2306
1418sub emergency_save { 2307=item $maps = cf::map::random_maps
1419 local $cf::FREEZE = 1;
1420 2308
1421 warn "enter emergency map save\n"; 2309Returns an arrayref with all map paths of currently instantiated and saved
2310random maps. May block.
1422 2311
1423 cf::sync_job { 2312=cut
1424 warn "begin emergency map save\n";
1425 $_->save for values %cf::MAP;
1426 };
1427 2313
1428 warn "end emergency map save\n"; 2314sub random_maps() {
2315 [
2316 map {
2317 utf8::decode $_;
2318 /\.map$/
2319 ? normalise "?random/$_"
2320 : ()
2321 } @{ aio_readdir $RANDOMDIR or [] }
2322 ]
2323}
2324
2325=item cf::map::unique_maps
2326
2327Returns an arrayref of paths of all shared maps that have
2328instantiated unique items. May block.
2329
2330=cut
2331
2332sub unique_maps() {
2333 [
2334 map {
2335 utf8::decode $_;
2336 /\.map$/
2337 ? normalise $_
2338 : ()
2339 } @{ aio_readdir $UNIQUEDIR or [] }
2340 ]
1429} 2341}
1430 2342
1431package cf; 2343package cf;
1432 2344
1433=back 2345=back
1434 2346
2347=head3 cf::object
2348
2349=cut
2350
2351package cf::object;
2352
2353=over 4
2354
2355=item $ob->inv_recursive
2356
2357Returns the inventory of the object _and_ their inventories, recursively.
2358
2359=cut
2360
2361sub inv_recursive_;
2362sub inv_recursive_ {
2363 map { $_, inv_recursive_ $_->inv } @_
2364}
2365
2366sub inv_recursive {
2367 inv_recursive_ inv $_[0]
2368}
2369
2370=item $ref = $ob->ref
2371
2372creates and returns a persistent reference to an objetc that can be stored as a string.
2373
2374=item $ob = cf::object::deref ($refstring)
2375
2376returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2377even if the object actually exists. May block.
2378
2379=cut
2380
2381sub deref {
2382 my ($ref) = @_;
2383
2384 if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
2385 my ($uuid, $name) = ($1, $2);
2386 my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
2387 or return;
2388 $pl->ob->uuid eq $uuid
2389 or return;
2390
2391 $pl->ob
2392 } else {
2393 warn "$ref: cannot resolve object reference\n";
2394 undef
2395 }
2396}
2397
2398package cf;
2399
2400=back
1435 2401
1436=head3 cf::object::player 2402=head3 cf::object::player
1437 2403
1438=over 4 2404=over 4
1439 2405
… …
1453 2419
1454 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; 2420 $flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1455 2421
1456 if ($self->{record_replies}) { 2422 if ($self->{record_replies}) {
1457 push @{ $self->{record_replies} }, [$npc, $msg, $flags]; 2423 push @{ $self->{record_replies} }, [$npc, $msg, $flags];
2424
1458 } else { 2425 } else {
2426 my $pl = $self->contr;
2427
2428 if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2429 my $dialog = $pl->{npc_dialog};
2430 $dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2431
2432 } else {
1459 $msg = $npc->name . " says: $msg" if $npc; 2433 $msg = $npc->name . " says: $msg" if $npc;
1460 $self->message ($msg, $flags); 2434 $self->message ($msg, $flags);
2435 }
1461 } 2436 }
2437}
2438
2439=item $object->send_msg ($channel, $msg, $color, [extra...])
2440
2441=cut
2442
2443sub cf::object::send_msg {
2444 my $pl = shift->contr
2445 or return;
2446 $pl->send_msg (@_);
1462} 2447}
1463 2448
1464=item $player_object->may ("access") 2449=item $player_object->may ("access")
1465 2450
1466Returns wether the given player is authorized to access resource "access" 2451Returns wether the given player is authorized to access resource "access"
… …
1479 2464
1480=item $player_object->enter_link 2465=item $player_object->enter_link
1481 2466
1482Freezes the player and moves him/her to a special map (C<{link}>). 2467Freezes the player and moves him/her to a special map (C<{link}>).
1483 2468
1484The player should be reaosnably safe there for short amounts of time. You 2469The player should be reasonably safe there for short amounts of time. You
1485I<MUST> call C<leave_link> as soon as possible, though. 2470I<MUST> call C<leave_link> as soon as possible, though.
1486 2471
2472Will never block.
2473
1487=item $player_object->leave_link ($map, $x, $y) 2474=item $player_object->leave_link ($map, $x, $y)
1488 2475
1489Moves the player out of the specila link map onto the given map. If the 2476Moves the player out of the special C<{link}> map onto the specified
1490map is not valid (or omitted), the player will be moved back to the 2477map. If the map is not valid (or omitted), the player will be moved back
1491location he/she was before the call to C<enter_link>, or, if that fails, 2478to the location he/she was before the call to C<enter_link>, or, if that
1492to the emergency map position. 2479fails, to the emergency map position.
1493 2480
1494Might block. 2481Might block.
1495 2482
1496=cut 2483=cut
2484
2485sub link_map {
2486 unless ($LINK_MAP) {
2487 $LINK_MAP = cf::map::find "{link}"
2488 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
2489 $LINK_MAP->load;
2490 }
2491
2492 $LINK_MAP
2493}
1497 2494
1498sub cf::object::player::enter_link { 2495sub cf::object::player::enter_link {
1499 my ($self) = @_; 2496 my ($self) = @_;
1500 2497
1501 $self->deactivate_recursive; 2498 $self->deactivate_recursive;
1502 2499
1503 return if $self->map == $LINK_MAP; 2500 return if UNIVERSAL::isa $self->map, "ext::map_link";
1504 2501
1505 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 2502 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1506 if $self->map; 2503 if $self->map && $self->map->{path} ne "{link}";
1507 2504
1508 $self->enter_map ($LINK_MAP, 20, 20); 2505 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1509} 2506}
1510 2507
1511sub cf::object::player::leave_link { 2508sub cf::object::player::leave_link {
1512 my ($self, $map, $x, $y) = @_; 2509 my ($self, $map, $x, $y) = @_;
2510
2511 return unless $self->contr->active;
1513 2512
1514 my $link_pos = delete $self->{_link_pos}; 2513 my $link_pos = delete $self->{_link_pos};
1515 2514
1516 unless ($map) { 2515 unless ($map) {
1517 # restore original map position 2516 # restore original map position
1518 ($map, $x, $y) = @{ $link_pos || [] }; 2517 ($map, $x, $y) = @{ $link_pos || [] };
1519 $map = cf::map::find_map $map; 2518 $map = cf::map::find $map;
1520 2519
1521 unless ($map) { 2520 unless ($map) {
1522 ($map, $x, $y) = @$EMERGENCY_POSITION; 2521 ($map, $x, $y) = @$EMERGENCY_POSITION;
1523 $map = cf::map::find_map $map 2522 $map = cf::map::find $map
1524 or die "FATAL: cannot load emergency map\n"; 2523 or die "FATAL: cannot load emergency map\n";
1525 } 2524 }
1526 } 2525 }
1527 2526
1528 ($x, $y) = (-1, -1) 2527 ($x, $y) = (-1, -1)
… …
1531 # use -1 or undef as default coordinates, not 0, 0 2530 # use -1 or undef as default coordinates, not 0, 0
1532 ($x, $y) = ($map->enter_x, $map->enter_y) 2531 ($x, $y) = ($map->enter_x, $map->enter_y)
1533 if $x <=0 && $y <= 0; 2532 if $x <=0 && $y <= 0;
1534 2533
1535 $map->load; 2534 $map->load;
2535 $map->load_neighbours;
1536 2536
2537 return unless $self->contr->active;
1537 $self->activate_recursive; 2538 $self->activate_recursive;
2539
2540 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1538 $self->enter_map ($map, $x, $y); 2541 $self->enter_map ($map, $x, $y);
1539} 2542}
1540 2543
1541cf::player->attach ( 2544=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1542 on_logout => sub {
1543 my ($pl) = @_;
1544 2545
1545 # abort map switching before logout 2546Moves the player to the given map-path and coordinates by first freezing
1546 if ($pl->ob->{_link_pos}) { 2547her, loading and preparing them map, calling the provided $check callback
1547 cf::sync_job { 2548that has to return the map if sucecssful, and then unfreezes the player on
1548 $pl->ob->leave_link 2549the new (success) or old (failed) map position. In either case, $done will
1549 }; 2550be called at the end of this process.
1550 }
1551 },
1552 on_login => sub {
1553 my ($pl) = @_;
1554 2551
1555 # try to abort aborted map switching on player login :)
1556 # should happen only on crashes
1557 if ($pl->ob->{_link_pos}) {
1558 $pl->ob->enter_link;
1559 cf::async {
1560 # we need this sleep as the login has a concurrent enter_exit running
1561 # and this sleep increases chances of the player not ending up in scorn
1562 Coro::Timer::sleep 1;
1563 $pl->ob->leave_link;
1564 };
1565 }
1566 },
1567);
1568
1569=item $player_object->goto_map ($path, $x, $y)
1570
1571=cut 2552=cut
1572 2553
2554our $GOTOGEN;
2555
1573sub cf::object::player::goto_map { 2556sub cf::object::player::goto {
1574 my ($self, $path, $x, $y) = @_; 2557 my ($self, $path, $x, $y, $check, $done) = @_;
2558
2559 # do generation counting so two concurrent goto's will be executed in-order
2560 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1575 2561
1576 $self->enter_link; 2562 $self->enter_link;
1577 2563
1578 (cf::async { 2564 (async {
1579 $path = new cf::path $path; 2565 $Coro::current->{desc} = "player::goto $path $x $y";
1580 2566
1581 my $map = cf::map::find_map $path->as_string; 2567 # *tag paths override both path and x|y
2568 if ($path =~ /^\*(.*)$/) {
2569 if (my @obs = grep $_->map, ext::map_tags::find $1) {
2570 my $ob = $obs[rand @obs];
2571
2572 # see if we actually can go there
2573 if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
2574 $ob = $obs[rand @obs];
2575 } else {
2576 $self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
2577 }
2578 # else put us there anyways for now #d#
2579
2580 ($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
2581 } else {
2582 ($path, $x, $y) = (undef, undef, undef);
2583 }
2584 }
2585
2586 my $map = eval {
2587 my $map = defined $path ? cf::map::find $path : undef;
2588
2589 if ($map) {
1582 $map = $map->customise_for ($self) if $map; 2590 $map = $map->customise_for ($self);
1583 2591 $map = $check->($map) if $check && $map;
1584# warn "entering ", $map->path, " at ($x, $y)\n" 2592 } else {
1585# if $map;
1586
1587 $map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED); 2593 $self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2594 }
1588 2595
2596 $map
2597 };
2598
2599 if ($@) {
2600 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2601 LOG llevError | logBacktrace, Carp::longmess $@;
2602 }
2603
2604 if ($gen == $self->{_goto_generation}) {
2605 delete $self->{_goto_generation};
1589 $self->leave_link ($map, $x, $y); 2606 $self->leave_link ($map, $x, $y);
2607 }
2608
2609 $done->() if $done;
1590 })->prio (1); 2610 })->prio (1);
1591} 2611}
1592 2612
1593=item $player_object->enter_exit ($exit_object) 2613=item $player_object->enter_exit ($exit_object)
1594 2614
… …
1596 2616
1597sub parse_random_map_params { 2617sub parse_random_map_params {
1598 my ($spec) = @_; 2618 my ($spec) = @_;
1599 2619
1600 my $rmp = { # defaults 2620 my $rmp = { # defaults
1601 xsize => 10, 2621 xsize => (cf::rndm 15, 40),
1602 ysize => 10, 2622 ysize => (cf::rndm 15, 40),
2623 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2624 #layout => string,
1603 }; 2625 };
1604 2626
1605 for (split /\n/, $spec) { 2627 for (split /\n/, $spec) {
1606 my ($k, $v) = split /\s+/, $_, 2; 2628 my ($k, $v) = split /\s+/, $_, 2;
1607 2629
… …
1611 $rmp 2633 $rmp
1612} 2634}
1613 2635
1614sub prepare_random_map { 2636sub prepare_random_map {
1615 my ($exit) = @_; 2637 my ($exit) = @_;
2638
2639 my $guard = cf::lock_acquire "exit_prepare:$exit";
1616 2640
1617 # all this does is basically replace the /! path by 2641 # all this does is basically replace the /! path by
1618 # a new random map path (?random/...) with a seed 2642 # a new random map path (?random/...) with a seed
1619 # that depends on the exit object 2643 # that depends on the exit object
1620 2644
1621 my $rmp = parse_random_map_params $exit->msg; 2645 my $rmp = parse_random_map_params $exit->msg;
1622 2646
1623 if ($exit->map) { 2647 if ($exit->map) {
1624 $rmp->{region} = $exit->map->region_name; 2648 $rmp->{region} = $exit->region->name;
1625 $rmp->{origin_map} = $exit->map->path; 2649 $rmp->{origin_map} = $exit->map->path;
1626 $rmp->{origin_x} = $exit->x; 2650 $rmp->{origin_x} = $exit->x;
1627 $rmp->{origin_y} = $exit->y; 2651 $rmp->{origin_y} = $exit->y;
1628 } 2652 }
1629 2653
1630 $rmp->{random_seed} ||= $exit->random_seed; 2654 $rmp->{random_seed} ||= $exit->random_seed;
1631 2655
1632 my $data = cf::to_json $rmp; 2656 my $data = cf::encode_json $rmp;
1633 my $md5 = Digest::MD5::md5_hex $data; 2657 my $md5 = Digest::MD5::md5_hex $data;
2658 my $meta = "$RANDOMDIR/$md5.meta";
1634 2659
1635 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 2660 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1636 aio_write $fh, 0, (length $data), $data, 0; 2661 aio_write $fh, 0, (length $data), $data, 0;
2662 undef $fh;
2663 aio_rename "$meta~", $meta;
1637 2664
1638 $exit->slaying ("?random/$md5"); 2665 $exit->slaying ("?random/$md5");
1639 $exit->msg (undef); 2666 $exit->msg (undef);
1640 } 2667 }
1641} 2668}
… …
1643sub cf::object::player::enter_exit { 2670sub cf::object::player::enter_exit {
1644 my ($self, $exit) = @_; 2671 my ($self, $exit) = @_;
1645 2672
1646 return unless $self->type == cf::PLAYER; 2673 return unless $self->type == cf::PLAYER;
1647 2674
2675 if ($exit->slaying eq "/!") {
2676 #TODO: this should de-fi-ni-te-ly not be a sync-job
2677 # the problem is that $exit might not survive long enough
2678 # so it needs to be done right now, right here
2679 cf::sync_job { prepare_random_map $exit };
2680 }
2681
2682 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2683 my $hp = $exit->stats->hp;
2684 my $sp = $exit->stats->sp;
2685
1648 $self->enter_link; 2686 $self->enter_link;
1649 2687
2688 # if exit is damned, update players death & WoR home-position
2689 $self->contr->savebed ($slaying, $hp, $sp)
2690 if $exit->flag (FLAG_DAMNED);
2691
1650 (cf::async { 2692 (async {
2693 $Coro::current->{desc} = "enter_exit $slaying $hp $sp";
2694
2695 $self->deactivate_recursive; # just to be sure
1651 unless (eval { 2696 unless (eval {
1652 prepare_random_map $exit 2697 $self->goto ($slaying, $hp, $sp);
1653 if $exit->slaying eq "/!";
1654
1655 my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656 $self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1657 2698
1658 1; 2699 1;
1659 }) { 2700 }) {
1660 $self->message ("Something went wrong deep within the crossfire server. " 2701 $self->message ("Something went wrong deep within the crossfire server. "
1661 . "I'll try to bring you back to the map you were before. " 2702 . "I'll try to bring you back to the map you were before. "
1662 . "Please report this to the dungeon master", 2703 . "Please report this to the dungeon master!",
1663 cf::NDI_UNIQUE | cf::NDI_RED); 2704 cf::NDI_UNIQUE | cf::NDI_RED);
1664 2705
1665 warn "ERROR in enter_exit: $@"; 2706 warn "ERROR in enter_exit: $@";
1666 $self->leave_link; 2707 $self->leave_link;
1667 } 2708 }
1668 })->prio (1); 2709 })->prio (1);
… …
1681 2722
1682sub cf::client::send_drawinfo { 2723sub cf::client::send_drawinfo {
1683 my ($self, $text, $flags) = @_; 2724 my ($self, $text, $flags) = @_;
1684 2725
1685 utf8::encode $text; 2726 utf8::encode $text;
1686 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2727 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687} 2728}
1688 2729
2730=item $client->send_msg ($channel, $msg, $color, [extra...])
2731
2732Send a drawinfo or msg packet to the client, formatting the msg for the
2733client if neccessary. C<$type> should be a string identifying the type of
2734the message, with C<log> being the default. If C<$color> is negative, suppress
2735the message unless the client supports the msg packet.
2736
2737=cut
2738
2739# non-persistent channels (usually the info channel)
2740our %CHANNEL = (
2741 "c/identify" => {
2742 id => "infobox",
2743 title => "Identify",
2744 reply => undef,
2745 tooltip => "Items recently identified",
2746 },
2747 "c/examine" => {
2748 id => "infobox",
2749 title => "Examine",
2750 reply => undef,
2751 tooltip => "Signs and other items you examined",
2752 },
2753 "c/book" => {
2754 id => "infobox",
2755 title => "Book",
2756 reply => undef,
2757 tooltip => "The contents of a note or book",
2758 },
2759 "c/lookat" => {
2760 id => "infobox",
2761 title => "Look",
2762 reply => undef,
2763 tooltip => "What you saw there",
2764 },
2765 "c/who" => {
2766 id => "infobox",
2767 title => "Players",
2768 reply => undef,
2769 tooltip => "Shows players who are currently online",
2770 },
2771 "c/body" => {
2772 id => "infobox",
2773 title => "Body Parts",
2774 reply => undef,
2775 tooltip => "Shows which body parts you posess and are available",
2776 },
2777 "c/uptime" => {
2778 id => "infobox",
2779 title => "Uptime",
2780 reply => undef,
2781 tooltip => "How long the server has been running since last restart",
2782 },
2783 "c/mapinfo" => {
2784 id => "infobox",
2785 title => "Map Info",
2786 reply => undef,
2787 tooltip => "Information related to the maps",
2788 },
2789);
2790
2791sub cf::client::send_msg {
2792 my ($self, $channel, $msg, $color, @extra) = @_;
2793
2794 $msg = $self->pl->expand_cfpod ($msg);
2795
2796 $color &= cf::NDI_CLIENT_MASK; # just in case...
2797
2798 # check predefined channels, for the benefit of C
2799 if ($CHANNEL{$channel}) {
2800 $channel = $CHANNEL{$channel};
2801
2802 $self->ext_msg (channel_info => $channel)
2803 if $self->can_msg;
2804
2805 $channel = $channel->{id};
2806
2807 } elsif (ref $channel) {
2808 # send meta info to client, if not yet sent
2809 unless (exists $self->{channel}{$channel->{id}}) {
2810 $self->{channel}{$channel->{id}} = $channel;
2811 $self->ext_msg (channel_info => $channel)
2812 if $self->can_msg;
2813 }
2814
2815 $channel = $channel->{id};
2816 }
2817
2818 return unless @extra || length $msg;
2819
2820 if ($self->can_msg) {
2821 # default colour, mask it out
2822 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2823 if $color & cf::NDI_DEF;
2824
2825 $self->send_packet ("msg " . $self->{json_coder}->encode (
2826 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
2827 } else {
2828 if ($color >= 0) {
2829 # replace some tags by gcfclient-compatible ones
2830 for ($msg) {
2831 1 while
2832 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2833 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2834 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2835 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2836 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2837 }
2838
2839 $color &= cf::NDI_COLOR_MASK;
2840
2841 utf8::encode $msg;
2842
2843 if (0 && $msg =~ /\[/) {
2844 # COMMAND/INFO
2845 $self->send_packet ("drawextinfo $color 10 8 $msg")
2846 } else {
2847 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2848 $self->send_packet ("drawinfo $color $msg")
2849 }
2850 }
2851 }
2852}
2853
2854=item $client->ext_msg ($type, @msg)
2855
2856Sends an ext event to the client.
2857
2858=cut
2859
2860sub cf::client::ext_msg($$@) {
2861 my ($self, $type, @msg) = @_;
2862
2863 if ($self->extcmd == 2) {
2864 $self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
2865 } elsif ($self->extcmd == 1) { # TODO: remove
2866 push @msg, msgtype => "event_$type";
2867 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2868 }
2869}
2870
2871=item $client->ext_reply ($msgid, @msg)
2872
2873Sends an ext reply to the client.
2874
2875=cut
2876
2877sub cf::client::ext_reply($$@) {
2878 my ($self, $id, @msg) = @_;
2879
2880 if ($self->extcmd == 2) {
2881 $self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
2882 } elsif ($self->extcmd == 1) {
2883 #TODO: version 1, remove
2884 unshift @msg, msgtype => "reply", msgid => $id;
2885 $self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
2886 }
2887}
1689 2888
1690=item $success = $client->query ($flags, "text", \&cb) 2889=item $success = $client->query ($flags, "text", \&cb)
1691 2890
1692Queues a query to the client, calling the given callback with 2891Queues a query to the client, calling the given callback with
1693the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2892the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. 2893C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695 2894
1696Queries can fail, so check the return code. Or don't, as queries will become 2895Queries can fail, so check the return code. Or don't, as queries will
1697reliable at some point in the future. 2896become reliable at some point in the future.
1698 2897
1699=cut 2898=cut
1700 2899
1701sub cf::client::query { 2900sub cf::client::query {
1702 my ($self, $flags, $text, $cb) = @_; 2901 my ($self, $flags, $text, $cb) = @_;
… …
1710 utf8::encode $text; 2909 utf8::encode $text;
1711 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; 2910 push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712 2911
1713 $self->send_packet ($self->{query_queue}[0][0]) 2912 $self->send_packet ($self->{query_queue}[0][0])
1714 if @{ $self->{query_queue} } == 1; 2913 if @{ $self->{query_queue} } == 1;
2914
2915 1
1715} 2916}
1716 2917
1717cf::client->attach ( 2918cf::client->attach (
2919 on_connect => sub {
2920 my ($ns) = @_;
2921
2922 $ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
2923 },
1718 on_reply => sub { 2924 on_reply => sub {
1719 my ($ns, $msg) = @_; 2925 my ($ns, $msg) = @_;
1720 2926
1721 # this weird shuffling is so that direct followup queries 2927 # this weird shuffling is so that direct followup queries
1722 # get handled first 2928 # get handled first
1723 my $queue = delete $ns->{query_queue} 2929 my $queue = delete $ns->{query_queue}
1724 or return; # be conservative, not sure how that can happen, but we saw a crash here 2930 or return; # be conservative, not sure how that can happen, but we saw a crash here
1725 2931
1726 (shift @$queue)->[1]->($msg); 2932 (shift @$queue)->[1]->($msg);
2933 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727 2934
1728 push @{ $ns->{query_queue} }, @$queue; 2935 push @{ $ns->{query_queue} }, @$queue;
1729 2936
1730 if (@{ $ns->{query_queue} } == @$queue) { 2937 if (@{ $ns->{query_queue} } == @$queue) {
1731 if (@$queue) { 2938 if (@$queue) {
… …
1733 } else { 2940 } else {
1734 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; 2941 $ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735 } 2942 }
1736 } 2943 }
1737 }, 2944 },
2945 on_exticmd => sub {
2946 my ($ns, $buf) = @_;
2947
2948 my $msg = eval { $ns->{json_coder}->decode ($buf) };
2949
2950 if (ref $msg) {
2951 my ($type, $reply, @payload) =
2952 "ARRAY" eq ref $msg
2953 ? @$msg
2954 : ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
2955
2956 my @reply;
2957
2958 if (my $cb = $EXTICMD{$type}) {
2959 @reply = $cb->($ns, @payload);
2960 }
2961
2962 $ns->ext_reply ($reply, @reply)
2963 if $reply;
2964
2965 } else {
2966 warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
2967 }
2968
2969 cf::override;
2970 },
1738); 2971);
1739 2972
1740=item $client->coro (\&cb) 2973=item $client->async (\&cb)
1741 2974
1742Create a new coroutine, running the specified callback. The coroutine will 2975Create a new coroutine, running the specified callback. The coroutine will
1743be automatically cancelled when the client gets destroyed (e.g. on logout, 2976be automatically cancelled when the client gets destroyed (e.g. on logout,
1744or loss of connection). 2977or loss of connection).
1745 2978
1746=cut 2979=cut
1747 2980
1748sub cf::client::coro { 2981sub cf::client::async {
1749 my ($self, $cb) = @_; 2982 my ($self, $cb) = @_;
1750 2983
1751 my $coro = &cf::async ($cb); 2984 my $coro = &Coro::async ($cb);
1752 2985
1753 $coro->on_destroy (sub { 2986 $coro->on_destroy (sub {
1754 delete $self->{_coro}{$coro+0}; 2987 delete $self->{_coro}{$coro+0};
1755 }); 2988 });
1756 2989
… …
1783our $safe = new Safe "safe"; 3016our $safe = new Safe "safe";
1784our $safe_hole = new Safe::Hole; 3017our $safe_hole = new Safe::Hole;
1785 3018
1786$SIG{FPE} = 'IGNORE'; 3019$SIG{FPE} = 'IGNORE';
1787 3020
1788$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); 3021$safe->permit_only (Opcode::opset qw(
3022 :base_core :base_mem :base_orig :base_math
3023 grepstart grepwhile mapstart mapwhile
3024 sort time
3025));
1789 3026
1790# here we export the classes and methods available to script code 3027# here we export the classes and methods available to script code
1791 3028
1792=pod 3029=pod
1793 3030
1794The following fucntions and emthods are available within a safe environment: 3031The following functions and methods are available within a safe environment:
1795 3032
1796 cf::object contr pay_amount pay_player map 3033 cf::object
3034 contr pay_amount pay_player map x y force_find force_add destroy
3035 insert remove name archname title slaying race decrease_ob_nr
3036
1797 cf::object::player player 3037 cf::object::player
1798 cf::player peaceful 3038 player
1799 cf::map trigger 3039
3040 cf::player
3041 peaceful
3042
3043 cf::map
3044 trigger
1800 3045
1801=cut 3046=cut
1802 3047
1803for ( 3048for (
1804 ["cf::object" => qw(contr pay_amount pay_player map)], 3049 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3050 insert remove inv name archname title slaying race
3051 decrease_ob_nr destroy)],
1805 ["cf::object::player" => qw(player)], 3052 ["cf::object::player" => qw(player)],
1806 ["cf::player" => qw(peaceful)], 3053 ["cf::player" => qw(peaceful)],
1807 ["cf::map" => qw(trigger)], 3054 ["cf::map" => qw(trigger)],
1808) { 3055) {
1809 no strict 'refs'; 3056 no strict 'refs';
… …
1880=back 3127=back
1881 3128
1882=cut 3129=cut
1883 3130
1884############################################################################# 3131#############################################################################
3132# the server's init and main functions
1885 3133
1886=head2 EXTENSION DATABASE SUPPORT 3134sub load_facedata($) {
3135 my ($path) = @_;
1887 3136
1888Crossfire maintains a very simple database for extension use. It can 3137 # HACK to clear player env face cache, we need some signal framework
1889currently store anything that can be serialised using Storable, which 3138 # for this (global event?)
1890excludes objects. 3139 %ext::player_env::MUSIC_FACE_CACHE = ();
1891 3140
1892The parameter C<$family> should best start with the name of the extension 3141 my $enc = JSON::XS->new->utf8->canonical->relaxed;
1893using it, it should be unique.
1894 3142
1895=over 4 3143 warn "loading facedata from $path\n";
1896 3144
1897=item $hashref = cf::db_get $family 3145 my $facedata;
3146 0 < aio_load $path, $facedata
3147 or die "$path: $!";
1898 3148
1899Return a hashref for use by the extension C<$family>, which can be 3149 $facedata = Coro::Storable::thaw $facedata;
1900modified. After modifications, you have to call C<cf::db_dirty> or
1901C<cf::db_sync>.
1902 3150
1903=item $value = cf::db_get $family => $key 3151 $facedata->{version} == 2
3152 or cf::cleanup "$path: version mismatch, cannot proceed.";
1904 3153
1905Returns a single value from the database 3154 # patch in the exptable
1906 3155 $facedata->{resource}{"res/exp_table"} = {
1907=item cf::db_put $family => $hashref 3156 type => FT_RSRC,
1908 3157 data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1909Stores the given family hashref into the database. Updates are delayed, if
1910you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912=item cf::db_put $family => $key => $value
1913
1914Stores the given C<$value> in the family hash. Updates are delayed, if you
1915want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917=item cf::db_dirty
1918
1919Marks the database as dirty, to be updated at a later time.
1920
1921=item cf::db_sync
1922
1923Immediately write the database to disk I<if it is dirty>.
1924
1925=cut
1926
1927our $DB;
1928
1929{
1930 my $path = cf::localdir . "/database.pst";
1931
1932 sub db_load() {
1933 $DB = stat $path ? Storable::retrieve $path : { };
1934 }
1935
1936 my $pid;
1937
1938 sub db_save() {
1939 waitpid $pid, 0 if $pid;
1940 if (0 == ($pid = fork)) {
1941 $DB->{_meta}{version} = 1;
1942 Storable::nstore $DB, "$path~";
1943 rename "$path~", $path;
1944 cf::_exit 0 if defined $pid;
1945 }
1946 }
1947
1948 my $dirty;
1949
1950 sub db_sync() {
1951 db_save if $dirty;
1952 undef $dirty;
1953 }
1954
1955 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956 db_sync;
1957 }); 3158 };
3159 cf::cede_to_tick;
1958 3160
1959 sub db_dirty() {
1960 $dirty = 1;
1961 $idle->start;
1962 } 3161 {
3162 my $faces = $facedata->{faceinfo};
1963 3163
1964 sub db_get($;$) { 3164 while (my ($face, $info) = each %$faces) {
1965 @_ >= 2 3165 my $idx = (cf::face::find $face) || cf::face::alloc $face;
1966 ? $DB->{$_[0]}{$_[1]}
1967 : ($DB->{$_[0]} ||= { })
1968 }
1969 3166
1970 sub db_put($$;$) { 3167 cf::face::set_visibility $idx, $info->{visibility};
1971 if (@_ >= 3) { 3168 cf::face::set_magicmap $idx, $info->{magicmap};
1972 $DB->{$_[0]}{$_[1]} = $_[2]; 3169 cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1973 } else { 3170 cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1974 $DB->{$_[0]} = $_[1];
1975 }
1976 db_dirty;
1977 }
1978 3171
1979 cf::global->attach ( 3172 cf::cede_to_tick;
1980 prio => 10000,
1981 on_cleanup => sub {
1982 db_sync;
1983 }, 3173 }
1984 );
1985}
1986 3174
1987############################################################################# 3175 while (my ($face, $info) = each %$faces) {
1988# the server's main() 3176 next unless $info->{smooth};
1989 3177
1990sub cfg_load { 3178 my $idx = cf::face::find $face
3179 or next;
3180
3181 if (my $smooth = cf::face::find $info->{smooth}) {
3182 cf::face::set_smooth $idx, $smooth;
3183 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3184 } else {
3185 warn "smooth face '$info->{smooth}' not found for face '$face'";
3186 }
3187
3188 cf::cede_to_tick;
3189 }
3190 }
3191
3192 {
3193 my $anims = $facedata->{animinfo};
3194
3195 while (my ($anim, $info) = each %$anims) {
3196 cf::anim::set $anim, $info->{frames}, $info->{facings};
3197 cf::cede_to_tick;
3198 }
3199
3200 cf::anim::invalidate_all; # d'oh
3201 }
3202
3203 {
3204 # TODO: for gcfclient pleasure, we should give resources
3205 # that gcfclient doesn't grok a >10000 face index.
3206 my $res = $facedata->{resource};
3207
3208 while (my ($name, $info) = each %$res) {
3209 if (defined $info->{type}) {
3210 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3211 my $data;
3212
3213 if ($info->{type} & 1) {
3214 # prepend meta info
3215
3216 my $meta = $enc->encode ({
3217 name => $name,
3218 %{ $info->{meta} || {} },
3219 });
3220
3221 $data = pack "(w/a*)*", $meta, $info->{data};
3222 } else {
3223 $data = $info->{data};
3224 }
3225
3226 cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
3227 cf::face::set_type $idx, $info->{type};
3228 } else {
3229 $RESOURCE{$name} = $info;
3230 }
3231
3232 cf::cede_to_tick;
3233 }
3234 }
3235
3236 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3237
3238 1
3239}
3240
3241cf::global->attach (on_resource_update => sub {
3242 if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
3243 $soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
3244
3245 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3246 my $sound = $soundconf->{compat}[$_]
3247 or next;
3248
3249 my $face = cf::face::find "sound/$sound->[1]";
3250 cf::sound::set $sound->[0] => $face;
3251 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3252 }
3253
3254 while (my ($k, $v) = each %{$soundconf->{event}}) {
3255 my $face = cf::face::find "sound/$v";
3256 cf::sound::set $k => $face;
3257 }
3258 }
3259});
3260
3261register_exticmd fx_want => sub {
3262 my ($ns, $want) = @_;
3263
3264 while (my ($k, $v) = each %$want) {
3265 $ns->fx_want ($k, $v);
3266 }
3267};
3268
3269sub reload_regions {
3270 # HACK to clear player env face cache, we need some signal framework
3271 # for this (global event?)
3272 %ext::player_env::MUSIC_FACE_CACHE = ();
3273
3274 load_resource_file "$MAPDIR/regions"
3275 or die "unable to load regions file\n";
3276
3277 for (cf::region::list) {
3278 $_->{match} = qr/$_->{match}/
3279 if exists $_->{match};
3280 }
3281}
3282
3283sub reload_facedata {
3284 load_facedata "$DATADIR/facedata"
3285 or die "unable to load facedata\n";
3286}
3287
3288sub reload_archetypes {
3289 load_resource_file "$DATADIR/archetypes"
3290 or die "unable to load archetypes\n";
3291 #d# NEED to laod twice to resolve forward references
3292 # this really needs to be done in an extra post-pass
3293 # (which needs to be synchronous, so solve it differently)
3294 load_resource_file "$DATADIR/archetypes"
3295 or die "unable to load archetypes\n";
3296}
3297
3298sub reload_treasures {
3299 load_resource_file "$DATADIR/treasures"
3300 or die "unable to load treasurelists\n";
3301}
3302
3303sub reload_resources {
3304 warn "reloading resource files...\n";
3305
3306 reload_regions;
3307 reload_facedata;
3308 #reload_archetypes;#d#
3309 reload_archetypes;
3310 reload_treasures;
3311
3312 warn "finished reloading resource files\n";
3313}
3314
3315sub init {
3316 reload_resources;
3317}
3318
3319sub reload_config {
1991 open my $fh, "<:utf8", cf::confdir . "/config" 3320 open my $fh, "<:utf8", "$CONFDIR/config"
1992 or return; 3321 or return;
1993 3322
1994 local $/; 3323 local $/;
1995 *CFG = YAML::Syck::Load <$fh>; 3324 *CFG = YAML::Load <$fh>;
1996 3325
1997 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 3326 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
3327
3328 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3329 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1998 3330
1999 if (exists $CFG{mlockall}) { 3331 if (exists $CFG{mlockall}) {
2000 eval { 3332 eval {
2001 $CFG{mlockall} ? &mlockall : &munlockall 3333 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2002 and die "WARNING: m(un)lockall failed: $!\n"; 3334 and die "WARNING: m(un)lockall failed: $!\n";
2003 }; 3335 };
2004 warn $@ if $@; 3336 warn $@ if $@;
2005 } 3337 }
2006} 3338}
2007 3339
2008sub main { 3340sub main {
2009 # we must not ever block the main coroutine 3341 # we must not ever block the main coroutine
2010 local $Coro::idle = sub { 3342 local $Coro::idle = sub {
2011 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3343 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2012 (Coro::unblock_sub { 3344 (async {
2013 Event::one_event; 3345 $Coro::current->{desc} = "IDLE BUG HANDLER";
2014 })->(); 3346 EV::loop EV::LOOP_ONESHOT;
3347 })->prio (Coro::PRIO_MAX);
2015 }; 3348 };
2016 3349
2017 cfg_load; 3350 reload_config;
2018 db_load; 3351 db_init;
2019 load_extensions; 3352 load_extensions;
3353
3354 $TICK_WATCHER->start;
3355 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2020 Event::loop; 3356 EV::loop;
2021} 3357}
2022 3358
2023############################################################################# 3359#############################################################################
2024# initialisation 3360# initialisation and cleanup
2025 3361
3362# install some emergency cleanup handlers
3363BEGIN {
3364 our %SIGWATCHER = ();
3365 for my $signal (qw(INT HUP TERM)) {
3366 $SIGWATCHER{$signal} = EV::signal $signal, sub {
3367 cf::cleanup "SIG$signal";
3368 };
3369 }
3370}
3371
3372sub write_runtime {
3373 my $runtime = "$LOCALDIR/runtime";
3374
3375 # first touch the runtime file to show we are still running:
3376 # the fsync below can take a very very long time.
3377
3378 IO::AIO::aio_utime $runtime, undef, undef;
3379
3380 my $guard = cf::lock_acquire "write_runtime";
3381
3382 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
3383 or return;
3384
3385 my $value = $cf::RUNTIME + 90 + 10;
3386 # 10 is the runtime save interval, for a monotonic clock
3387 # 60 allows for the watchdog to kill the server.
3388
3389 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3390 and return;
3391
3392 # always fsync - this file is important
3393 aio_fsync $fh
3394 and return;
3395
3396 # touch it again to show we are up-to-date
3397 aio_utime $fh, undef, undef;
3398
3399 close $fh
3400 or return;
3401
3402 aio_rename "$runtime~", $runtime
3403 and return;
3404
3405 warn "runtime file written.\n";
3406
3407 1
3408}
3409
3410sub emergency_save() {
3411 my $freeze_guard = cf::freeze_mainloop;
3412
3413 warn "enter emergency perl save\n";
3414
3415 cf::sync_job {
3416 # use a peculiar iteration method to avoid tripping on perl
3417 # refcount bugs in for. also avoids problems with players
3418 # and maps saved/destroyed asynchronously.
3419 warn "begin emergency player save\n";
3420 for my $login (keys %cf::PLAYER) {
3421 my $pl = $cf::PLAYER{$login} or next;
3422 $pl->valid or next;
3423 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3424 $pl->save;
3425 }
3426 warn "end emergency player save\n";
3427
3428 warn "begin emergency map save\n";
3429 for my $path (keys %cf::MAP) {
3430 my $map = $cf::MAP{$path} or next;
3431 $map->valid or next;
3432 $map->save;
3433 }
3434 warn "end emergency map save\n";
3435
3436 warn "begin emergency database checkpoint\n";
3437 BDB::db_env_txn_checkpoint $DB_ENV;
3438 warn "end emergency database checkpoint\n";
3439 };
3440
3441 warn "leave emergency perl save\n";
3442}
3443
3444sub post_cleanup {
3445 my ($make_core) = @_;
3446
3447 warn Carp::longmess "post_cleanup backtrace"
3448 if $make_core;
3449}
3450
2026sub reload() { 3451sub do_reload_perl() {
2027 # can/must only be called in main 3452 # can/must only be called in main
2028 if ($Coro::current != $Coro::main) { 3453 if ($Coro::current != $Coro::main) {
2029 warn "can only reload from main coroutine\n"; 3454 warn "can only reload from main coroutine";
2030 return; 3455 return;
2031 } 3456 }
2032 3457
2033 warn "reloading..."; 3458 warn "reloading...";
2034 3459
2035 local $FREEZE = 1; 3460 warn "entering sync_job";
3461
3462 cf::sync_job {
3463 cf::write_runtime; # external watchdog should not bark
2036 cf::emergency_save; 3464 cf::emergency_save;
3465 cf::write_runtime; # external watchdog should not bark
2037 3466
2038 eval { 3467 warn "syncing database to disk";
3468 BDB::db_env_txn_checkpoint $DB_ENV;
3469
2039 # if anything goes wrong in here, we should simply crash as we already saved 3470 # if anything goes wrong in here, we should simply crash as we already saved
2040 3471
2041 # cancel all watchers 3472 warn "flushing outstanding aio requests";
2042 for (Event::all_watchers) { 3473 for (;;) {
2043 $_->cancel if $_->data & WF_AUTOCANCEL; 3474 BDB::flush;
3475 IO::AIO::flush;
3476 Coro::cede_notself;
3477 last unless IO::AIO::nreqs || BDB::nreqs;
3478 warn "iterate...";
2044 } 3479 }
2045 3480
3481 ++$RELOAD;
3482
2046 # cancel all extension coros 3483 warn "cancelling all extension coros";
2047 $_->cancel for values %EXT_CORO; 3484 $_->cancel for values %EXT_CORO;
2048 %EXT_CORO = (); 3485 %EXT_CORO = ();
2049 3486
2050 # unload all extensions 3487 warn "removing commands";
2051 for (@exts) { 3488 %COMMAND = ();
3489
3490 warn "removing ext/exti commands";
3491 %EXTCMD = ();
3492 %EXTICMD = ();
3493
3494 warn "unloading/nuking all extensions";
3495 for my $pkg (@EXTS) {
2052 warn "unloading <$_>"; 3496 warn "... unloading $pkg";
2053 unload_extension $_; 3497
3498 if (my $cb = $pkg->can ("unload")) {
3499 eval {
3500 $cb->($pkg);
3501 1
3502 } or warn "$pkg unloaded, but with errors: $@";
2054 } 3503 }
2055 3504
3505 warn "... nuking $pkg";
3506 Symbol::delete_package $pkg;
3507 }
3508
2056 # unload all modules loaded from $LIBDIR 3509 warn "unloading all perl modules loaded from $LIBDIR";
2057 while (my ($k, $v) = each %INC) { 3510 while (my ($k, $v) = each %INC) {
2058 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 3511 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2059 3512
2060 warn "removing <$k>"; 3513 warn "... unloading $k";
2061 delete $INC{$k}; 3514 delete $INC{$k};
2062 3515
2063 $k =~ s/\.pm$//; 3516 $k =~ s/\.pm$//;
2064 $k =~ s/\//::/g; 3517 $k =~ s/\//::/g;
2065 3518
… …
2068 } 3521 }
2069 3522
2070 Symbol::delete_package $k; 3523 Symbol::delete_package $k;
2071 } 3524 }
2072 3525
2073 # sync database to disk
2074 cf::db_sync;
2075 IO::AIO::flush;
2076
2077 # get rid of safe::, as good as possible 3526 warn "getting rid of safe::, as good as possible";
2078 Symbol::delete_package "safe::$_" 3527 Symbol::delete_package "safe::$_"
2079 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3528 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2080 3529
2081 # remove register_script_function callbacks
2082 # TODO
2083
2084 # unload cf.pm "a bit" 3530 warn "unloading cf.pm \"a bit\"";
2085 delete $INC{"cf.pm"}; 3531 delete $INC{"cf.pm"};
3532 delete $INC{"cf/pod.pm"};
2086 3533
2087 # don't, removes xs symbols, too, 3534 # don't, removes xs symbols, too,
2088 # and global variables created in xs 3535 # and global variables created in xs
2089 #Symbol::delete_package __PACKAGE__; 3536 #Symbol::delete_package __PACKAGE__;
2090 3537
2091 # reload cf.pm 3538 warn "unload completed, starting to reload now";
3539
2092 warn "reloading cf.pm"; 3540 warn "reloading cf.pm";
2093 require cf; 3541 require cf;
2094 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3542 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2095 3543
2096 # load config and database again 3544 warn "loading config and database again";
2097 cf::cfg_load; 3545 cf::reload_config;
2098 cf::db_load;
2099 3546
2100 # load extensions
2101 warn "load extensions"; 3547 warn "loading extensions";
2102 cf::load_extensions; 3548 cf::load_extensions;
2103 3549
2104 # reattach attachments to objects 3550 warn "reattaching attachments to objects/players";
2105 warn "reattach"; 3551 _global_reattach; # objects, sockets
2106 _global_reattach; 3552 warn "reattaching attachments to maps";
3553 reattach $_ for values %MAP;
3554 warn "reattaching attachments to players";
3555 reattach $_ for values %PLAYER;
3556
3557 warn "leaving sync_job";
3558
3559 1
3560 } or do {
3561 warn $@;
3562 cf::cleanup "error while reloading, exiting.";
2107 }; 3563 };
2108 3564
2109 if ($@) { 3565 warn "reloaded";
2110 warn $@;
2111 warn "error while reloading, exiting.";
2112 exit 1;
2113 }
2114
2115 warn "reloaded successfully";
2116}; 3566};
2117 3567
2118############################################################################# 3568our $RELOAD_WATCHER; # used only during reload
2119 3569
2120unless ($LINK_MAP) { 3570sub reload_perl() {
2121 $LINK_MAP = cf::map::new; 3571 # doing reload synchronously and two reloads happen back-to-back,
3572 # coro crashes during coro_state_free->destroy here.
2122 3573
2123 $LINK_MAP->width (41); 3574 $RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2124 $LINK_MAP->height (41); 3575 do_reload_perl;
2125 $LINK_MAP->alloc; 3576 undef $RELOAD_WATCHER;
2126 $LINK_MAP->path ("{link}"); 3577 };
2127 $LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2128 $LINK_MAP->in_memory (MAP_IN_MEMORY);
2129
2130 # dirty hack because... archetypes are not yet loaded
2131 Event->timer (
2132 after => 2,
2133 cb => sub {
2134 $_[0]->w->cancel;
2135
2136 # provide some exits "home"
2137 my $exit = cf::object::new "exit";
2138
2139 $exit->slaying ($EMERGENCY_POSITION->[0]);
2140 $exit->stats->hp ($EMERGENCY_POSITION->[1]);
2141 $exit->stats->sp ($EMERGENCY_POSITION->[2]);
2142
2143 $LINK_MAP->insert ($exit->clone, 19, 19);
2144 $LINK_MAP->insert ($exit->clone, 19, 20);
2145 $LINK_MAP->insert ($exit->clone, 19, 21);
2146 $LINK_MAP->insert ($exit->clone, 20, 19);
2147 $LINK_MAP->insert ($exit->clone, 20, 21);
2148 $LINK_MAP->insert ($exit->clone, 21, 19);
2149 $LINK_MAP->insert ($exit->clone, 21, 20);
2150 $LINK_MAP->insert ($exit->clone, 21, 21);
2151
2152 $exit->destroy;
2153 });
2154
2155 $LINK_MAP->{deny_save} = 1;
2156 $LINK_MAP->{deny_reset} = 1;
2157
2158 $cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2159} 3578}
2160
2161register "<global>", __PACKAGE__;
2162 3579
2163register_command "reload" => sub { 3580register_command "reload" => sub {
2164 my ($who, $arg) = @_; 3581 my ($who, $arg) = @_;
2165 3582
2166 if ($who->flag (FLAG_WIZ)) { 3583 if ($who->flag (FLAG_WIZ)) {
2167 $who->message ("start of reload.");
2168 reload;
2169 $who->message ("end of reload."); 3584 $who->message ("reloading server.");
3585 async {
3586 $Coro::current->{desc} = "perl_reload";
3587 reload_perl;
3588 };
2170 } 3589 }
2171}; 3590};
2172 3591
2173unshift @INC, $LIBDIR; 3592unshift @INC, $LIBDIR;
2174 3593
2175$TICK_WATCHER = Event->timer ( 3594my $bug_warning = 0;
2176 reentrant => 0, 3595
2177 prio => 0, 3596our @WAIT_FOR_TICK;
2178 at => $NEXT_TICK || $TICK, 3597our @WAIT_FOR_TICK_BEGIN;
2179 data => WF_AUTOCANCEL, 3598
2180 cb => sub { 3599sub wait_for_tick {
2181 unless ($FREEZE) { 3600 return unless $TICK_WATCHER->is_active;
3601 return if $Coro::current == $Coro::main;
3602
3603 my $signal = new Coro::Signal;
3604 push @WAIT_FOR_TICK, $signal;
3605 $signal->wait;
3606}
3607
3608sub wait_for_tick_begin {
3609 return unless $TICK_WATCHER->is_active;
3610 return if $Coro::current == $Coro::main;
3611
3612 my $signal = new Coro::Signal;
3613 push @WAIT_FOR_TICK_BEGIN, $signal;
3614 $signal->wait;
3615}
3616
3617$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
3618 if ($Coro::current != $Coro::main) {
3619 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3620 unless ++$bug_warning > 10;
3621 return;
3622 }
3623
3624 $NOW = $tick_start = EV::now;
3625
2182 cf::server_tick; # one server iteration 3626 cf::server_tick; # one server iteration
3627
2183 $RUNTIME += $TICK; 3628 $RUNTIME += $TICK;
2184 } 3629 $NEXT_TICK = $_[0]->at;
2185 3630
2186 $NEXT_TICK += $TICK; 3631 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2187 3632 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2188 # if we are delayed by four ticks or more, skip them all 3633 Coro::async_pool {
2189 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 3634 $Coro::current->{desc} = "runtime saver";
2190
2191 $TICK_WATCHER->at ($NEXT_TICK);
2192 $TICK_WATCHER->start;
2193 },
2194);
2195
2196IO::AIO::max_poll_time $TICK * 0.2;
2197
2198Event->io (
2199 fd => IO::AIO::poll_fileno,
2200 poll => 'r',
2201 prio => 5,
2202 data => WF_AUTOCANCEL,
2203 cb => \&IO::AIO::poll_cb,
2204);
2205
2206Event->timer (
2207 data => WF_AUTOCANCEL,
2208 after => 0,
2209 interval => 10,
2210 cb => sub {
2211 (Coro::unblock_sub {
2212 write_runtime 3635 write_runtime
2213 or warn "ERROR: unable to write runtime file: $!"; 3636 or warn "ERROR: unable to write runtime file: $!";
2214 })->(); 3637 };
2215 }, 3638 }
2216); 3639
3640 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
3641 $sig->send;
3642 }
3643 while (my $sig = shift @WAIT_FOR_TICK) {
3644 $sig->send;
3645 }
3646
3647 $LOAD = ($NOW - $tick_start) / $TICK;
3648 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3649
3650 _post_tick;
3651};
3652$TICK_WATCHER->priority (EV::MAXPRI);
3653
3654{
3655 # configure BDB
3656
3657 BDB::min_parallel 8;
3658 BDB::max_poll_reqs $TICK * 0.1;
3659 $Coro::BDB::WATCHER->priority (1);
3660
3661 unless ($DB_ENV) {
3662 $DB_ENV = BDB::db_env_create;
3663 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
3664 | BDB::LOG_AUTOREMOVE, 1);
3665 $DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
3666 $DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
3667
3668 cf::sync_job {
3669 eval {
3670 BDB::db_env_open
3671 $DB_ENV,
3672 $BDBDIR,
3673 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3674 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3675 0666;
3676
3677 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3678 };
3679
3680 cf::cleanup "db_env_open(db): $@" if $@;
3681 };
3682 }
3683
3684 $BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
3685 BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
3686 };
3687 $BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
3688 BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
3689 };
3690 $BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
3691 BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
3692 };
3693}
3694
3695{
3696 # configure IO::AIO
3697
3698 IO::AIO::min_parallel 8;
3699 IO::AIO::max_poll_time $TICK * 0.1;
3700 $Coro::AIO::WATCHER->priority (1);
3701}
3702
3703my $_log_backtrace;
3704
3705sub _log_backtrace {
3706 my ($msg, @addr) = @_;
3707
3708 $msg =~ s/\n//;
3709
3710 # limit the # of concurrent backtraces
3711 if ($_log_backtrace < 2) {
3712 ++$_log_backtrace;
3713 async {
3714 $Coro::current->{desc} = "abt $msg";
3715
3716 my @bt = fork_call {
3717 @addr = map { sprintf "%x", $_ } @addr;
3718 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3719 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3720 or die "addr2line: $!";
3721
3722 my @funcs;
3723 my @res = <$fh>;
3724 chomp for @res;
3725 while (@res) {
3726 my ($func, $line) = splice @res, 0, 2, ();
3727 push @funcs, "[$func] $line";
3728 }
3729
3730 @funcs
3731 };
3732
3733 LOG llevInfo, "[ABT] $msg\n";
3734 LOG llevInfo, "[ABT] $_\n" for @bt;
3735 --$_log_backtrace;
3736 };
3737 } else {
3738 LOG llevInfo, "[ABT] $msg\n";
3739 LOG llevInfo, "[ABT] [suppressed]\n";
3740 }
3741}
3742
3743# load additional modules
3744use cf::pod;
2217 3745
2218END { cf::emergency_save } 3746END { cf::emergency_save }
2219 3747
22201 37481
2221 3749

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