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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.118 by root, Mon Jan 1 21:19:52 2007 UTC vs.
Revision 1.262 by root, Sat Apr 28 05:55:55 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	29	use YAML::Syck ();
		30	use IO::AIO 2.32 ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
		88	our %PLAYER; # all users
52	our %MAP; # all maps	89	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	91
55	our $RANDOM_MAPS = cf::localdir . "/random";	92	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
57		94
58	binmode STDOUT;	95	binmode STDOUT;
59	binmode STDERR;	96	binmode STDERR;
60		97
61	# read virtual server time, if available	98	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
66	}	103	}
67		104
68	mkdir cf::localdir;	105	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		107
74	# a special map that is always available	108	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		109
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	110	sub cf::map::normalise;
78		111
79	#############################################################################	112	#############################################################################
80		113
81	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
82		115
…		…
89	=item $cf::RUNTIME	122	=item $cf::RUNTIME
90		123
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	124	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	125	every server tick.
93		126
94	=item $cf::LIBDIR	127	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		128	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		129	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		130
96	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	132	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		133	unique-items directory, player file directory, random maps directory and
		134	database environment.
98		135
99	=item $cf::NOW	136	=item $cf::NOW
100		137
101	The time of the last (current) server tick.	138	The time of the last (current) server tick.
102		139
…		…
106		143
107	=item %cf::CFG	144	=item %cf::CFG
108		145
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	147	from wherever your confdir points to.
		148
		149	=item cf::wait_for_tick, cf::wait_for_tick_begin
		150
		151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		152	returns directly I<after> the tick processing (and consequently, can only wake one process
		153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
111		154
112	=back	155	=back
113		156
114	=cut	157	=cut
115		158
116	BEGIN {	159	BEGIN {
117	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	161	my $msg = join "", @_;
119	utf8::encode $msg;
120		162
121	$msg .= "\n"	163	$msg .= "\n"
122	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
123		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
125	};	170	};
126	}	171	}
127		172
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
147		192
148	$Event::DIED = sub {	193	$Event::DIED = sub {
149	warn "error in event callback: @_";	194	warn "error in event callback: @_";
150	};	195	};
151		196
152	my %ext_pkg;
153	my @exts;
154	my @hook;
155
156	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
157		198
158	=over 4	199	=over 4
159		200
160	=cut	201	=item dumpval $ref
161		202
		203	=cut
		204
		205	sub dumpval {
		206	eval {
		207	local $SIG{__DIE__};
		208	my $d;
		209	if (1) {
		210	$d = new Data::Dumper([$_[0]], ["*var"]);
		211	$d->Terse(1);
		212	$d->Indent(2);
		213	$d->Quotekeys(0);
		214	$d->Useqq(1);
		215	#$d->Bless(...);
		216	$d->Seen($_[1]) if @_ > 1;
		217	$d = $d->Dump();
		218	}
		219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		220	$d
		221	} || "[unable to dump $_[0]: '$@']";
		222	}
		223
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
163		225
164	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
165		227
166	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
167		229
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
176		231
177	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
178		233
179	=cut	234	=item cf::lock_wait $string
180		235
181	sub to_json($) {	236	Wait until the given lock is available. See cf::lock_acquire.
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	237
183	JSON::Syck::Dump $_[0]	238	=item my $lock = cf::lock_acquire $string
		239
		240	Wait until the given lock is available and then acquires it and returns
		241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		242	for example when the coroutine gets canceled), the lock is automatically
		243	returned.
		244
		245	Lock names should begin with a unique identifier (for example, cf::map::find
		246	uses map_find and cf::map::load uses map_load).
		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
		252	=cut
		253
		254	our %LOCK;
		255
		256	sub lock_wait($) {
		257	my ($key) = @_;
		258
		259	# wait for lock, if any
		260	while ($LOCK{$key}) {
		261	push @{ $LOCK{$key} }, $Coro::current;
		262	Coro::schedule;
		263	}
184	}	264	}
		265
		266	sub lock_acquire($) {
		267	my ($key) = @_;
		268
		269	# wait, to be sure we are not locked
		270	lock_wait $key;
		271
		272	$LOCK{$key} = [];
		273
		274	Coro::guard {
		275	# wake up all waiters, to be on the safe side
		276	$_->ready for @{ delete $LOCK{$key} };
		277	}
		278	}
		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
		286	sub freeze_mainloop {
		287	return unless $TICK_WATCHER->is_active;
		288
		289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
		292	$TICK_WATCHER->stop;
		293	$guard
		294	}
		295
		296	=item cf::async { BLOCK }
		297
		298	Currently the same as Coro::async_pool, meaning you cannot use
		299	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		300	thing you are allowed to do is call C<prio> on it.
		301
		302	=cut
		303
		304	BEGIN { *async = \&Coro::async_pool }
185		305
186	=item cf::sync_job { BLOCK }	306	=item cf::sync_job { BLOCK }
187		307
188	The design of crossfire+ requires that the main coro ($Coro::main) is	308	The design of crossfire+ requires that the main coro ($Coro::main) is
189	always able to handle events or runnable, as crossfire+ is only partly	309	always able to handle events or runnable, as crossfire+ is only partly
…		…
203	# this is the main coro, too bad, we have to block	323	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	324	# till the operation succeeds, freezing the server :/
205		325
206	# TODO: use suspend/resume instead	326	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	327	# (but this is cancel-safe)
208	local $FREEZE = 1;	328	my $freeze_guard = freeze_mainloop;
209		329
210	my $busy = 1;	330	my $busy = 1;
211	my @res;	331	my @res;
212		332
213	(Coro::async {	333	(async {
214	@res = eval { $job->() };	334	@res = eval { $job->() };
215	warn $@ if $@;	335	warn $@ if $@;
216	undef $busy;	336	undef $busy;
217	})->prio (Coro::PRIO_MAX);	337	})->prio (Coro::PRIO_MAX);
218		338
219	while ($busy) {	339	while ($busy) {
220	Coro::cede_notself;	340	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	341	}
223		342
224	wantarray ? @res : $res[0]	343	wantarray ? @res : $res[0]
225	} else {	344	} else {
226	# we are in another coroutine, how wonderful, everything just works	345	# we are in another coroutine, how wonderful, everything just works
227		346
228	$job->()	347	$job->()
229	}	348	}
230	}	349	}
231		350
232	=item $coro = cf::coro { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
233		352
234	Creates and returns a new coro. This coro is automcatially being canceled	353	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	354	extension calling this is being unloaded.
236		355
237	=cut	356	=cut
238		357
239	sub coro(&) {	358	sub async_ext(&) {
240	my $cb = shift;	359	my $cb = shift;
241		360
242	my $coro; $coro = async {	361	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		362
249	$coro->on_destroy (sub {	363	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	364	delete $EXT_CORO{$coro+0};
251	});	365	});
252	$EXT_CORO{$coro+0} = $coro;	366	$EXT_CORO{$coro+0} = $coro;
253		367
254	$coro	368	$coro
255	}	369	}
256		370
257	sub write_runtime {	371	sub write_runtime {
258	my $runtime = cf::localdir . "/runtime";	372	my $guard = cf::lock_acquire "write_runtime";
		373
		374	my $runtime = "$LOCALDIR/runtime";
259		375
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
261	or return;	377	or return;
262		378
		379	my $value = $cf::RUNTIME + 90 + 10;
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	380	# 10 is the runtime save interval, for a monotonic clock
		381	# 60 allows for the watchdog to kill the server.
		382
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0	383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;	384	and return;
266		385
		386	# always fsync - this file is important
267	aio_fsync $fh	387	aio_fsync $fh
268	and return;	388	and return;
269		389
270	close $fh	390	close $fh
271	or return;	391	or return;
…		…
274	and return;	394	and return;
275		395
276	1	396	1
277	}	397	}
278		398
		399	=item cf::datalog type => key => value, ...
		400
		401	Log a datalog packet of the given type with the given key-value pairs.
		402
		403	=cut
		404
		405	sub datalog($@) {
		406	my ($type, %kv) = @_;
		407	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		408	}
		409
279	=back	410	=back
280		411
281	=cut	412	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		413
403	#############################################################################	414	#############################################################################
404		415
405	=head2 ATTACHABLE OBJECTS	416	=head2 ATTACHABLE OBJECTS
406		417
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	543	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	544	our @CB_MAP = ();
534		545
535	my %attachment;	546	my %attachment;
536		547
		548	sub cf::attachable::thawer_merge {
		549	# simply override everything except _meta
		550	local $_[0]{_meta};
		551	%{$_[0]} = %{$_[1]};
		552	}
		553
537	sub _attach_cb($$$$) {	554	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	555	my ($registry, $event, $prio, $cb) = @_;
539		556
540	use sort 'stable';	557	use sort 'stable';
541		558
…		…
712	# object support	729	# object support
713		730
714	sub reattach {	731	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	732	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	733	my ($obj) = @_;
		734
		735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		736
718	my $registry = $obj->registry;	737	my $registry = $obj->registry;
719		738
720	@$registry = ();	739	@$registry = ();
721		740
…		…
768	$filename, length $$rdata, scalar @$objs;	787	$filename, length $$rdata, scalar @$objs;
769		788
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	790	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	792	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	793	close $fh;
775		794
776	if (@$objs) {	795	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	797	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	798	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	799	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	800	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	801	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	802	aio_rename "$filename.pst~", "$filename.pst";
784	}	803	}
785	} else {	804	} else {
786	aio_unlink "$filename.pst";	805	aio_unlink "$filename.pst";
…		…
853	=cut	872	=cut
854		873
855	sub register_extcmd {	874	sub register_extcmd {
856	my ($name, $cb) = @_;	875	my ($name, $cb) = @_;
857		876
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	877	$EXTCMD{$name} = $cb;
862	}	878	}
863		879
864	cf::player->attach (	880	cf::player->attach (
865	on_command => sub {	881	on_command => sub {
866	my ($pl, $name, $params) = @_;	882	my ($pl, $name, $params) = @_;
…		…
879		895
880	my $msg = eval { from_json $buf };	896	my $msg = eval { from_json $buf };
881		897
882	if (ref $msg) {	898	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	900	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	901	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	902	}
887	}	903	}
888	} else {	904	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		907
892	cf::override;	908	cf::override;
893	},	909	},
894	);	910	);
895		911
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	912	sub load_extension {
903	my ($path) = @_;	913	my ($path) = @_;
904		914
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
906	my $base = $1;	916	my $base = $1;
907	my $pkg = $1;	917	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;	918	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";	919	$pkg = "ext::$pkg";
910		920
911	warn "loading '$path' into '$pkg'\n";	921	warn "... loading '$path' into '$pkg'\n";
912		922
913	open my $fh, "<:utf8", $path	923	open my $fh, "<:utf8", $path
914	or die "$path: $!";	924	or die "$path: $!";
915		925
916	my $source =	926	my $source =
917	"package $pkg; use strict; use utf8;\n"	927	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"	928	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })	929	. (do { local $/; <$fh> })
920	. "\n};\n1";	930	. "\n};\n1";
921		931
922	eval $source	932	unless (eval $source) {
923	or die $@ ? "$path: $@\n"	933	my $msg = $@ ? "$path: $@\n"
924	: "extension disabled.\n";	934	: "extension disabled.\n";
925		935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
926	push @exts, $pkg;	936	warn $@;
927	$ext_pkg{$base} = $pkg;	937	warn "mandatory extension failed to load, exiting.\n";
928		938	exit 1;
929	# no strict 'refs';	939	}
930	# @{"$pkg\::ISA"} = ext::;	940	die $@;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	941	}
945		942
946	# remove commands	943	push @EXTS, $pkg;
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}	944	}
971		945
972	sub load_extensions {	946	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {	947	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;	948	next unless -r $ext;
…		…
978	} or warn "$ext not loaded: $@";	952	} or warn "$ext not loaded: $@";
979	}	953	}
980	}	954	}
981		955
982	#############################################################################	956	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019		957
1020	=head2 CORE EXTENSIONS	958	=head2 CORE EXTENSIONS
1021		959
1022	Functions and methods that extend core crossfire objects.	960	Functions and methods that extend core crossfire objects.
1023		961
		962	=cut
		963
		964	package cf::player;
		965
		966	use Coro::AIO;
		967
1024	=head3 cf::player	968	=head3 cf::player
1025		969
1026	=over 4	970	=over 4
1027		971
1028	=item cf::player::exists $login	972	=item cf::player::find $login
1029		973
1030	Returns true when the given account exists.	974	Returns the given player object, loading it if necessary (might block).
1031		975
1032	=cut	976	=cut
1033		977
1034	sub cf::player::exists($) {	978	sub playerdir($) {
1035	cf::player::find $_[0]	979	"$PLAYERDIR/"
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	980	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1037	}	981	}
1038		982
		983	sub path($) {
		984	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		985
		986	(playerdir $login) . "/playerdata"
		987	}
		988
		989	sub find_active($) {
		990	$cf::PLAYER{$_[0]}
		991	and $cf::PLAYER{$_[0]}->active
		992	and $cf::PLAYER{$_[0]}
		993	}
		994
		995	sub exists($) {
		996	my ($login) = @_;
		997
		998	$cf::PLAYER{$login}
		999	or cf::sync_job { !aio_stat path $login }
		1000	}
		1001
		1002	sub find($) {
		1003	return $cf::PLAYER{$_[0]} || do {
		1004	my $login = $_[0];
		1005
		1006	my $guard = cf::lock_acquire "user_find:$login";
		1007
		1008	$cf::PLAYER{$_[0]} || do {
		1009	# rename old playerfiles to new ones
		1010	#TODO: remove when no longer required
		1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1014	aio_unlink +(playerdir $login) . "/$login.pl";
		1015
		1016	my $pl = load_pl path $login
		1017	or return;
		1018	$cf::PLAYER{$login} = $pl
		1019	}
		1020	}
		1021	}
		1022
		1023	sub save($) {
		1024	my ($pl) = @_;
		1025
		1026	return if $pl->{deny_save};
		1027
		1028	my $path = path $pl;
		1029	my $guard = cf::lock_acquire "user_save:$path";
		1030
		1031	return if $pl->{deny_save};
		1032
		1033	aio_mkdir playerdir $pl, 0770;
		1034	$pl->{last_save} = $cf::RUNTIME;
		1035
		1036	$pl->save_pl ($path);
		1037	Coro::cede;
		1038	}
		1039
		1040	sub new($) {
		1041	my ($login) = @_;
		1042
		1043	my $self = create;
		1044
		1045	$self->ob->name ($login);
		1046	$self->{deny_save} = 1;
		1047
		1048	$cf::PLAYER{$login} = $self;
		1049
		1050	$self
		1051	}
		1052
		1053	=item $pl->quit_character
		1054
		1055	Nukes the player without looking back. If logged in, the connection will
		1056	be destroyed. May block for a long time.
		1057
		1058	=cut
		1059
		1060	sub quit_character {
		1061	my ($pl) = @_;
		1062
		1063	my $name = $pl->ob->name;
		1064
		1065	$pl->{deny_save} = 1;
		1066	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1067
		1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1069	$pl->deactivate;
		1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1071	$pl->ns->destroy if $pl->ns;
		1072
		1073	my $path = playerdir $pl;
		1074	my $temp = "$path~$cf::RUNTIME~deleting~";
		1075	aio_rename $path, $temp;
		1076	delete $cf::PLAYER{$pl->ob->name};
		1077	$pl->destroy;
		1078
		1079	my $prefix = qr<^~\Q$name\E/>;
		1080
		1081	# nuke player maps
		1082	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1083
		1084	IO::AIO::aio_rmtree $temp;
		1085	}
		1086
		1087	=item $pl->kick
		1088
		1089	Kicks a player out of the game. This destroys the connection.
		1090
		1091	=cut
		1092
		1093	sub kick {
		1094	my ($pl, $kicker) = @_;
		1095
		1096	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1097	$pl->killer ("kicked");
		1098	$pl->ns->destroy;
		1099	}
		1100
		1101	=item cf::player::list_logins
		1102
		1103	Returns am arrayref of all valid playernames in the system, can take a
		1104	while and may block, so not sync_job-capable, ever.
		1105
		1106	=cut
		1107
		1108	sub list_logins {
		1109	my $dirs = aio_readdir $PLAYERDIR
		1110	or return [];
		1111
		1112	my @logins;
		1113
		1114	for my $login (@$dirs) {
		1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1116	aio_read $fh, 0, 512, my $buf, 0 or next;
		1117	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1118
		1119	utf8::decode $login;
		1120	push @logins, $login;
		1121	}
		1122
		1123	\@logins
		1124	}
		1125
		1126	=item $player->maps
		1127
		1128	Returns an arrayref of map paths that are private for this
		1129	player. May block.
		1130
		1131	=cut
		1132
		1133	sub maps($) {
		1134	my ($pl) = @_;
		1135
		1136	$pl = ref $pl ? $pl->ob->name : $pl;
		1137
		1138	my $files = aio_readdir playerdir $pl
		1139	or return;
		1140
		1141	my @paths;
		1142
		1143	for (@$files) {
		1144	utf8::decode $_;
		1145	next if /\.(?:pl|pst)$/;
		1146	next unless /^$PATH_SEP/o;
		1147
		1148	push @paths, cf::map::normalise "~$pl/$_";
		1149	}
		1150
		1151	\@paths
		1152	}
		1153
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)	1154	=item $player->ext_reply ($msgid, %msg)
1040		1155
1041	Sends an ext reply to the player.	1156	Sends an ext reply to the player.
1042		1157
1043	=cut	1158	=cut
1044		1159
1045	sub cf::player::ext_reply($$$%) {	1160	sub ext_reply($$%) {
1046	my ($self, $id, %msg) = @_;	1161	my ($self, $id, %msg) = @_;
1047		1162
1048	$msg{msgid} = $id;	1163	$msg{msgid} = $id;
1049		1164
1050	$self->send ("ext " . to_json \%msg);	1165	$self->send ("ext " . cf::to_json \%msg);
		1166	}
		1167
		1168	=item $player->ext_event ($type, %msg)
		1169
		1170	Sends an ext event to the client.
		1171
		1172	=cut
		1173
		1174	sub ext_event($$%) {
		1175	my ($self, $type, %msg) = @_;
		1176
		1177	$self->ns->ext_event ($type, %msg);
		1178	}
		1179
		1180	=head3 cf::region
		1181
		1182	=over 4
		1183
		1184	=cut
		1185
		1186	package cf::region;
		1187
		1188	=item cf::region::find_by_path $path
		1189
		1190	Tries to decuce the probable region for a map knowing only its path.
		1191
		1192	=cut
		1193
		1194	sub find_by_path($) {
		1195	my ($path) = @_;
		1196
		1197	my ($match, $specificity);
		1198
		1199	for my $region (list) {
		1200	if ($region->match && $path =~ $region->match) {
		1201	($match, $specificity) = ($region, $region->specificity)
		1202	if $region->specificity > $specificity;
		1203	}
		1204	}
		1205
		1206	$match
1051	}	1207	}
1052		1208
1053	=back	1209	=back
1054
1055		1210
1056	=head3 cf::map	1211	=head3 cf::map
1057		1212
1058	=over 4	1213	=over 4
1059		1214
…		…
1062	package cf::map;	1217	package cf::map;
1063		1218
1064	use Fcntl;	1219	use Fcntl;
1065	use Coro::AIO;	1220	use Coro::AIO;
1066		1221
		1222	use overload
		1223	'""' => \&as_string,
		1224	fallback => 1;
		1225
1067	our $MAX_RESET = 7200;	1226	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1227	our $DEFAULT_RESET = 3000;
1069		1228
1070	sub generate_random_map {	1229	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1230	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1231	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1232	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1236	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1237	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1238	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1239	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1240	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1241	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1242	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1243	(cf::region::find $rmp->{region}), $rmp->{custom}
		1244	)
		1245	}
		1246
		1247	=item cf::map->register ($regex, $prio)
		1248
		1249	Register a handler for the map path matching the given regex at the
		1250	givne priority (higher is better, built-in handlers have priority 0, the
		1251	default).
		1252
		1253	=cut
		1254
		1255	sub register {
		1256	my (undef, $regex, $prio) = @_;
		1257	my $pkg = caller;
		1258
		1259	no strict;
		1260	push @{"$pkg\::ISA"}, __PACKAGE__;
		1261
		1262	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1263	}
		1264
		1265	# also paths starting with '/'
		1266	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1267
		1268	sub thawer_merge {
		1269	my ($self, $merge) = @_;
		1270
		1271	# we have to keep some variables in memory intact
		1272	local $self->{path};
		1273	local $self->{load_path};
		1274	local $self->{deny_save};
		1275	local $self->{deny_reset};
		1276
		1277	$self->SUPER::thawer_merge ($merge);
		1278	}
		1279
		1280	sub normalise {
		1281	my ($path, $base) = @_;
		1282
		1283	$path = "$path"; # make sure its a string
		1284
		1285	$path =~ s/\.map$//;
		1286
		1287	# map plan:
		1288	#
		1289	# /! non-realised random map exit (special hack!)
		1290	# {... are special paths that are not being touched
		1291	# ?xxx/... are special absolute paths
		1292	# ?random/... random maps
		1293	# /... normal maps
		1294	# ~user/... per-player map of a specific user
		1295
		1296	$path =~ s/$PATH_SEP/\//go;
		1297
		1298	# treat it as relative path if it starts with
		1299	# something that looks reasonable
		1300	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1301	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1302
		1303	$base =~ s{[^/]+/?$}{};
		1304	$path = "$base/$path";
		1305	}
		1306
		1307	for ($path) {
		1308	redo if s{//}{/};
		1309	redo if s{/\.?/}{/};
		1310	redo if s{/[^/]+/\.\./}{/};
		1311	}
		1312
		1313	$path
		1314	}
		1315
		1316	sub new_from_path {
		1317	my (undef, $path, $base) = @_;
		1318
		1319	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1320
		1321	$path = normalise $path, $base;
		1322
		1323	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1324	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1325	my $self = bless cf::map::new, $pkg;
		1326	$self->{path} = $path; $self->path ($path);
		1327	$self->init; # pass $1 etc.
		1328	return $self;
		1329	}
		1330	}
		1331
		1332	Carp::carp "unable to resolve path '$path' (base '$base').";
		1333	()
		1334	}
		1335
		1336	sub init {
		1337	my ($self) = @_;
		1338
		1339	$self
		1340	}
		1341
		1342	sub as_string {
		1343	my ($self) = @_;
		1344
		1345	"$self->{path}"
		1346	}
		1347
		1348	# the displayed name, this is a one way mapping
		1349	sub visible_name {
		1350	&as_string
		1351	}
		1352
		1353	# the original (read-only) location
		1354	sub load_path {
		1355	my ($self) = @_;
		1356
		1357	"$MAPDIR/$self->{path}.map"
		1358	}
		1359
		1360	# the temporary/swap location
		1361	sub save_path {
		1362	my ($self) = @_;
		1363
		1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1365	"$TMPDIR/$path.map"
		1366	}
		1367
		1368	# the unique path, undef == no special unique path
		1369	sub uniq_path {
		1370	my ($self) = @_;
		1371
		1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1373	"$UNIQUEDIR/$path"
1087	}	1374	}
1088		1375
1089	# and all this just because we cannot iterate over	1376	# and all this just because we cannot iterate over
1090	# all maps in C++...	1377	# all maps in C++...
1091	sub change_all_map_light {	1378	sub change_all_map_light {
1092	my ($change) = @_;	1379	my ($change) = @_;
1093		1380
1094	$_->change_map_light ($change) for values %cf::MAP;	1381	$_->change_map_light ($change)
		1382	for grep $_->outdoor, values %cf::MAP;
1095	}	1383	}
1096		1384
		1385	sub unlink_save {
		1386	my ($self) = @_;
		1387
		1388	utf8::encode (my $save = $self->save_path);
		1389	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1390	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1391	}
		1392
1097	sub try_load_header($) {	1393	sub load_header_from($) {
1098	my ($path) = @_;	1394	my ($self, $path) = @_;
1099		1395
1100	utf8::encode $path;	1396	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1397	#aio_open $path, O_RDONLY, 0
		1398	# or return;
		1399
		1400	$self->_load_header ($path)
1102	or return;	1401	or return;
1103		1402
1104	my $map = cf::map::new	1403	$self->{load_path} = $path;
		1404
		1405	1
		1406	}
		1407
		1408	sub load_header_orig {
		1409	my ($self) = @_;
		1410
		1411	$self->load_header_from ($self->load_path)
		1412	}
		1413
		1414	sub load_header_temp {
		1415	my ($self) = @_;
		1416
		1417	$self->load_header_from ($self->save_path)
		1418	}
		1419
		1420	sub prepare_temp {
		1421	my ($self) = @_;
		1422
		1423	$self->last_access ((delete $self->{last_access})
		1424	|| $cf::RUNTIME); #d#
		1425	# safety
		1426	$self->{instantiate_time} = $cf::RUNTIME
		1427	if $self->{instantiate_time} > $cf::RUNTIME;
		1428	}
		1429
		1430	sub prepare_orig {
		1431	my ($self) = @_;
		1432
		1433	$self->{load_original} = 1;
		1434	$self->{instantiate_time} = $cf::RUNTIME;
		1435	$self->last_access ($cf::RUNTIME);
		1436	$self->instantiate;
		1437	}
		1438
		1439	sub load_header {
		1440	my ($self) = @_;
		1441
		1442	if ($self->load_header_temp) {
		1443	$self->prepare_temp;
		1444	} else {
		1445	$self->load_header_orig
1105	or return;	1446	or return;
		1447	$self->prepare_orig;
		1448	}
1106		1449
1107	$map->load_header ($path)	1450	$self->default_region (cf::region::find_by_path $self->{path})
1108	or return;	1451	unless $self->default_region;
1109		1452
1110	$map->{load_path} = $path;	1453	1
1111
1112	$map
1113	}	1454	}
1114		1455
		1456	sub find;
1115	sub find_map {	1457	sub find {
1116	my ($path, $origin) = @_;	1458	my ($path, $origin) = @_;
1117		1459
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1460	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1461
		1462	cf::lock_wait "map_find:$path";
		1463
1123	$cf::MAP{$key} || do {	1464	$cf::MAP{$path} || do {
1124	# do it the slow way	1465	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1466	my $map = new_from_path cf::map $path
1126
1127	if ($map) {
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1467	or return;
1139		1468
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1469	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1470
1154	if ($map->should_reset) {	1471	$map->load_header
		1472	or return;
		1473
		1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1475	# doing this can freeze the server in a sync job, obviously
		1476	#$cf::WAIT_FOR_TICK->wait;
1155	$map->reset;	1477	$map->reset;
1156	$map = find_map $path;	1478	undef $guard;
		1479	return find $path;
1157	}	1480	}
1158		1481
1159	$cf::MAP{$key} = $map	1482	$cf::MAP{$path} = $map
1160	}	1483	}
1161	}	1484	}
		1485
		1486	sub pre_load { }
		1487	sub post_load { }
1162		1488
1163	sub load {	1489	sub load {
1164	my ($self) = @_;	1490	my ($self) = @_;
1165		1491
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1492	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1493
1170	my $path = $self->{path};	1494	my $path = $self->{path};
1171		1495
		1496	{
		1497	my $guard = cf::lock_acquire "map_load:$path";
		1498
		1499	return if $self->in_memory != cf::MAP_SWAPPED;
		1500
		1501	$self->in_memory (cf::MAP_LOADING);
		1502
1172	$self->alloc;	1503	$self->alloc;
		1504
		1505	$self->pre_load;
		1506	Coro::cede;
		1507
1173	$self->load_objects ($self->{load_path}, 1)	1508	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1509	or return;
1175		1510
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1512	if delete $self->{load_original};
1178		1513
1179	if (my $uniq = $path->uniq_path) {	1514	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1515	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1516	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1517	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1518	$self->_load_objects ($uniq, 0);
1184	}	1519	}
1185	}	1520	}
1186		1521
		1522	Coro::cede;
1187	# now do the right thing for maps	1523	# now do the right thing for maps
1188	$self->link_multipart_objects;	1524	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	1525	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1526	unless $self->difficulty;
		1527	Coro::cede;
		1528
		1529	unless ($self->{deny_activate}) {
		1530	$self->decay_objects;
		1531	$self->fix_auto_apply;
		1532	$self->update_buttons;
		1533	Coro::cede;
		1534	$self->set_darkness_map;
		1535	Coro::cede;
1200	$self->activate;	1536	$self->activate;
1201	}	1537	}
1202		1538
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1539	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1540	}
1205		1541
1206	sub load_map_sync {	1542	$self->post_load;
		1543	}
		1544
		1545	sub customise_for {
		1546	my ($self, $ob) = @_;
		1547
		1548	return find "~" . $ob->name . "/" . $self->{path}
		1549	if $self->per_player;
		1550
		1551	$self
		1552	}
		1553
		1554	# find and load all maps in the 3x3 area around a map
		1555	sub load_diag {
		1556	my ($map) = @_;
		1557
		1558	my @diag; # diagonal neighbours
		1559
		1560	for (0 .. 3) {
		1561	my $neigh = $map->tile_path ($_)
		1562	or next;
		1563	$neigh = find $neigh, $map
		1564	or next;
		1565	$neigh->load;
		1566
		1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1569	}
		1570
		1571	for (@diag) {
		1572	my $neigh = find @$_
		1573	or next;
		1574	$neigh->load;
		1575	}
		1576	}
		1577
		1578	sub find_sync {
1207	my ($path, $origin) = @_;	1579	my ($path, $origin) = @_;
1208		1580
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1581	cf::sync_job { find $path, $origin }
		1582	}
1210		1583
1211	cf::sync_job {	1584	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1585	my ($map) = @_;
1213	or return;	1586
		1587	cf::sync_job { $map->load };
		1588	}
		1589
		1590	our %MAP_PREFETCH;
		1591	our $MAP_PREFETCHER = undef;
		1592
		1593	sub find_async {
		1594	my ($path, $origin) = @_;
		1595
		1596	$path = normalise $path, $origin && $origin->{path};
		1597
		1598	if (my $map = $cf::MAP{$path}) {
		1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1600	}
		1601
		1602	undef $MAP_PREFETCH{$path};
		1603	$MAP_PREFETCHER ||= cf::async {
		1604	while (%MAP_PREFETCH) {
		1605	for my $path (keys %MAP_PREFETCH) {
		1606	my $map = find $path
		1607	or next;
1214	$map->load;	1608	$map->load;
1215	$map	1609
		1610	delete $MAP_PREFETCH{$path};
		1611	}
		1612	}
		1613	undef $MAP_PREFETCHER;
1216	}	1614	};
		1615	$MAP_PREFETCHER->prio (6);
		1616
		1617	()
1217	}	1618	}
1218		1619
1219	sub save {	1620	sub save {
1220	my ($self) = @_;	1621	my ($self) = @_;
1221		1622
		1623	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1624
1222	$self->{last_save} = $cf::RUNTIME;	1625	$self->{last_save} = $cf::RUNTIME;
1223		1626
1224	return unless $self->dirty;	1627	return unless $self->dirty;
1225		1628
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1629	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1630	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1631
1229	$self->{load_path} = $save;	1632	$self->{load_path} = $save;
1230		1633
1231	return if $self->{deny_save};	1634	return if $self->{deny_save};
1232		1635
		1636	local $self->{last_access} = $self->last_access;#d#
		1637
		1638	cf::async {
		1639	$_->contr->save for $self->players;
		1640	};
		1641
1233	if ($uniq) {	1642	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1645	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1646	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1647	}
1239	}	1648	}
1240		1649
1241	sub swap_out {	1650	sub swap_out {
1242	my ($self) = @_;	1651	my ($self) = @_;
		1652
		1653	# save first because save cedes
		1654	$self->save;
		1655
		1656	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1657
1244	return if $self->players;	1658	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1659	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1660	return if $self->{deny_save};
1247		1661
1248	$self->save;
1249	$self->clear;	1662	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1663	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1664	}
1252		1665
1253	sub reset_at {	1666	sub reset_at {
1254	my ($self) = @_;	1667	my ($self) = @_;
1255		1668
1256	# TODO: safety, remove and allow resettable per-player maps	1669	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};	1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1258	return 1e99 if $self->{deny_reset};	1671	return 1e99 if $self->{deny_reset};
1259		1672
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1675
…		…
1267	my ($self) = @_;	1680	my ($self) = @_;
1268		1681
1269	$self->reset_at <= $cf::RUNTIME	1682	$self->reset_at <= $cf::RUNTIME
1270	}	1683	}
1271		1684
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	1685	sub reset {
1294	my ($self) = @_;	1686	my ($self) = @_;
1295		1687
		1688	my $lock = cf::lock_acquire "map_data:$self->{path}";
		1689
1296	return if $self->players;	1690	return if $self->players;
1297	return if $self->{path}{user_rel};#d#	1691	return if $self->isa ("ext::map_per_player");#d#
1298		1692
1299	warn "resetting map ", $self->path;#d#	1693	warn "resetting map ", $self->path;#d#
1300		1694
		1695	$self->in_memory (cf::MAP_SWAPPED);
		1696
		1697	# need to save uniques path
		1698	unless ($self->{deny_save}) {
		1699	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1700
		1701	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1702	if $uniq;
		1703	}
		1704
1301	delete $cf::MAP{$self->path};	1705	delete $cf::MAP{$self->path};
		1706
		1707	$self->clear;
1302		1708
1303	$_->clear_links_to ($self) for values %cf::MAP;	1709	$_->clear_links_to ($self) for values %cf::MAP;
1304		1710
1305	$self->unlink_save;	1711	$self->unlink_save;
1306	$self->destroy;	1712	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	1715	my $nuke_counter = "aaaa";
1310		1716
1311	sub nuke {	1717	sub nuke {
1312	my ($self) = @_;	1718	my ($self) = @_;
1313		1719
		1720	delete $cf::MAP{$self->path};
		1721
		1722	$self->unlink_save;
		1723
		1724	bless $self, "cf::map";
		1725	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	1726	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	1727	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1729
		1730	$cf::MAP{$self->path} = $self;
		1731
1317	$self->reset; # polite request, might not happen	1732	$self->reset; # polite request, might not happen
1318	}	1733	}
1319		1734
1320	sub customise_for {	1735	=item cf::map::unique_maps
1321	my ($map, $ob) = @_;
1322		1736
1323	if ($map->per_player) {	1737	Returns an arrayref of paths of all shared maps that have
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	1738	instantiated unique items. May block.
1325	}
1326		1739
1327	$map	1740	=cut
1328	}
1329		1741
1330	sub emergency_save {	1742	sub unique_maps() {
1331	local $cf::FREEZE = 1;	1743	my $files = aio_readdir $UNIQUEDIR
		1744	or return;
1332		1745
1333	warn "enter emergency map save\n";	1746	my @paths;
1334		1747
1335	cf::sync_job {	1748	for (@$files) {
1336	warn "begin emergency map save\n";	1749	utf8::decode $_;
1337	$_->save for values %cf::MAP;	1750	next if /\.pst$/;
		1751	next unless /^$PATH_SEP/o;
		1752
		1753	push @paths, cf::map::normalise $_;
1338	};	1754	}
1339		1755
1340	warn "end emergency map save\n";	1756	\@paths
1341	}	1757	}
1342		1758
1343	package cf;	1759	package cf;
1344		1760
1345	=back	1761	=back
1346		1762
		1763	=head3 cf::object
		1764
		1765	=cut
		1766
		1767	package cf::object;
		1768
		1769	=over 4
		1770
		1771	=item $ob->inv_recursive
		1772
		1773	Returns the inventory of the object _and_ their inventories, recursively.
		1774
		1775	=cut
		1776
		1777	sub inv_recursive_;
		1778	sub inv_recursive_ {
		1779	map { $_, inv_recursive_ $_->inv } @_
		1780	}
		1781
		1782	sub inv_recursive {
		1783	inv_recursive_ inv $_[0]
		1784	}
		1785
		1786	package cf;
		1787
		1788	=back
1347		1789
1348	=head3 cf::object::player	1790	=head3 cf::object::player
1349		1791
1350	=over 4	1792	=over 4
1351		1793
…		…
1391		1833
1392	=item $player_object->enter_link	1834	=item $player_object->enter_link
1393		1835
1394	Freezes the player and moves him/her to a special map (C<{link}>).	1836	Freezes the player and moves him/her to a special map (C<{link}>).
1395		1837
1396	The player should be reaosnably safe there for short amounts of time. You	1838	The player should be reasonably safe there for short amounts of time. You
1397	I<MUST> call C<leave_link> as soon as possible, though.	1839	I<MUST> call C<leave_link> as soon as possible, though.
1398		1840
		1841	Will never block.
		1842
1399	=item $player_object->leave_link ($map, $x, $y)	1843	=item $player_object->leave_link ($map, $x, $y)
1400		1844
1401	Moves the player out of the specila link map onto the given map. If the	1845	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	1846	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	1847	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	1848	fails, to the emergency map position.
1405		1849
1406	Might block.	1850	Might block.
1407		1851
1408	=cut	1852	=cut
		1853
		1854	sub link_map {
		1855	unless ($LINK_MAP) {
		1856	$LINK_MAP = cf::map::find "{link}"
		1857	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1858	$LINK_MAP->load;
		1859	}
		1860
		1861	$LINK_MAP
		1862	}
1409		1863
1410	sub cf::object::player::enter_link {	1864	sub cf::object::player::enter_link {
1411	my ($self) = @_;	1865	my ($self) = @_;
1412		1866
1413	return if $self->map == $LINK_MAP;	1867	$self->deactivate_recursive;
1414		1868
		1869	return if UNIVERSAL::isa $self->map, "ext::map_link";
		1870
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]	1871	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;	1872	if $self->map;
1417		1873
1418	$self->enter_map ($LINK_MAP, 20, 20);	1874	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1419	$self->deactivate_recursive;
1420	}	1875	}
1421		1876
1422	sub cf::object::player::leave_link {	1877	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	1878	my ($self, $map, $x, $y) = @_;
1424		1879
1425	my $link_pos = delete $self->{_link_pos};	1880	my $link_pos = delete $self->{_link_pos};
1426		1881
1427	unless ($map) {	1882	unless ($map) {
1428	# restore original map position	1883	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	1884	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	1885	$map = cf::map::find $map;
1431		1886
1432	unless ($map) {	1887	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	1888	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	1889	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	1890	or die "FATAL: cannot load emergency map\n";
1436	}	1891	}
1437	}	1892	}
1438		1893
1439	($x, $y) = (-1, -1)	1894	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	1897	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	1898	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	1899	if $x <=0 && $y <= 0;
1445		1900
1446	$map->load;	1901	$map->load;
		1902	$map->load_diag;
1447		1903
		1904	return unless $self->contr->active;
1448	$self->activate_recursive;	1905	$self->activate_recursive;
		1906
		1907	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	1908	$self->enter_map ($map, $x, $y);
1450	}	1909	}
1451		1910
		1911	cf::player->attach (
		1912	on_logout => sub {
		1913	my ($pl) = @_;
		1914
		1915	# abort map switching before logout
		1916	if ($pl->ob->{_link_pos}) {
		1917	cf::sync_job {
		1918	$pl->ob->leave_link
		1919	};
		1920	}
		1921	},
		1922	on_login => sub {
		1923	my ($pl) = @_;
		1924
		1925	# try to abort aborted map switching on player login :)
		1926	# should happen only on crashes
		1927	if ($pl->ob->{_link_pos}) {
		1928	$pl->ob->enter_link;
		1929	(async {
		1930	$pl->ob->reply (undef,
		1931	"There was an internal problem at your last logout, "
		1932	. "the server will try to bring you to your intended destination in a second.",
		1933	cf::NDI_RED);
		1934	# we need this sleep as the login has a concurrent enter_exit running
		1935	# and this sleep increases chances of the player not ending up in scorn
		1936	Coro::Timer::sleep 1;
		1937	$pl->ob->leave_link;
		1938	})->prio (2);
		1939	}
		1940	},
		1941	);
		1942
1452	=item $player_object->goto_map ($path, $x, $y)	1943	=item $player_object->goto ($path, $x, $y)
1453		1944
1454	=cut	1945	=cut
1455		1946
1456	sub cf::object::player::goto_map {	1947	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	1948	my ($self, $path, $x, $y) = @_;
1458		1949
1459	$self->enter_link;	1950	$self->enter_link;
1460		1951
1461	(Coro::async {	1952	(async {
1462	$path = new cf::path $path;	1953	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	1954	my $map = cf::map::find $path;
1465	$map = $map->customise_for ($self) if $map;	1955	$map = $map->customise_for ($self) if $map;
1466
1467	warn "entering ", $map->path, " at ($x, $y)\n"
1468	if $map;	1956	$map
1469		1957	} or
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1958	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1471		1959
1472	$self->leave_link ($map, $x, $y);	1960	$self->leave_link ($map, $x, $y);
1473	})->prio (1);	1961	})->prio (1);
1474	}	1962	}
1475		1963
…		…
1479		1967
1480	sub parse_random_map_params {	1968	sub parse_random_map_params {
1481	my ($spec) = @_;	1969	my ($spec) = @_;
1482		1970
1483	my $rmp = { # defaults	1971	my $rmp = { # defaults
1484	xsize => 10,	1972	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	1973	ysize => (cf::rndm 15, 40),
		1974	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1975	#layout => string,
1486	};	1976	};
1487		1977
1488	for (split /\n/, $spec) {	1978	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	1979	my ($k, $v) = split /\s+/, $_, 2;
1490		1980
…		…
1494	$rmp	1984	$rmp
1495	}	1985	}
1496		1986
1497	sub prepare_random_map {	1987	sub prepare_random_map {
1498	my ($exit) = @_;	1988	my ($exit) = @_;
		1989
		1990	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		1991
1500	# all this does is basically replace the /! path by	1992	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	1993	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	1994	# that depends on the exit object
1503		1995
1504	my $rmp = parse_random_map_params $exit->msg;	1996	my $rmp = parse_random_map_params $exit->msg;
1505		1997
1506	if ($exit->map) {	1998	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	1999	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2000	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2001	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2002	$rmp->{origin_y} = $exit->y;
1511	}	2003	}
1512		2004
1513	$rmp->{random_seed} ||= $exit->random_seed;	2005	$rmp->{random_seed} ||= $exit->random_seed;
1514		2006
1515	my $data = cf::to_json $rmp;	2007	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2008	my $md5 = Digest::MD5::md5_hex $data;
		2009	my $meta = "$RANDOMDIR/$md5.meta";
1517		2010
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2011	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2012	aio_write $fh, 0, (length $data), $data, 0;
		2013	undef $fh;
		2014	aio_rename "$meta~", $meta;
1520		2015
1521	$exit->slaying ("?random/$md5");	2016	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2017	$exit->msg (undef);
1523	}	2018	}
1524	}	2019	}
…		…
1526	sub cf::object::player::enter_exit {	2021	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2022	my ($self, $exit) = @_;
1528		2023
1529	return unless $self->type == cf::PLAYER;	2024	return unless $self->type == cf::PLAYER;
1530		2025
		2026	if ($exit->slaying eq "/!") {
		2027	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2028	# the problem is that $exit might not survive long enough
		2029	# so it needs to be done right now, right here
		2030	cf::sync_job { prepare_random_map $exit };
		2031	}
		2032
		2033	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2034	my $hp = $exit->stats->hp;
		2035	my $sp = $exit->stats->sp;
		2036
1531	$self->enter_link;	2037	$self->enter_link;
1532		2038
1533	(Coro::async {	2039	(async {
		2040	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2041	unless (eval {
1535		2042	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		2043
1542	1;	2044	1;
1543	}) {	2045	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2046	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	2047	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2048	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2049	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2050
1549	warn "ERROR in enter_exit: $@";	2051	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2052	$self->leave_link;
1551	}	2053	}
1552	})->prio (1);	2054	})->prio (1);
…		…
1565		2067
1566	sub cf::client::send_drawinfo {	2068	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2069	my ($self, $text, $flags) = @_;
1568		2070
1569	utf8::encode $text;	2071	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2072	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2073	}
1572		2074
		2075	=item $client->ext_event ($type, %msg)
		2076
		2077	Sends an exti event to the client.
		2078
		2079	=cut
		2080
		2081	sub cf::client::ext_event($$%) {
		2082	my ($self, $type, %msg) = @_;
		2083
		2084	$msg{msgtype} = "event_$type";
		2085	$self->send_packet ("ext " . cf::to_json \%msg);
		2086	}
1573		2087
1574	=item $success = $client->query ($flags, "text", \&cb)	2088	=item $success = $client->query ($flags, "text", \&cb)
1575		2089
1576	Queues a query to the client, calling the given callback with	2090	Queues a query to the client, calling the given callback with
1577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2091	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1602	on_reply => sub {	2116	on_reply => sub {
1603	my ($ns, $msg) = @_;	2117	my ($ns, $msg) = @_;
1604		2118
1605	# this weird shuffling is so that direct followup queries	2119	# this weird shuffling is so that direct followup queries
1606	# get handled first	2120	# get handled first
1607	my $queue = delete $ns->{query_queue};	2121	my $queue = delete $ns->{query_queue}
		2122	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2123
1609	(shift @$queue)->[1]->($msg);	2124	(shift @$queue)->[1]->($msg);
		2125	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2126
1611	push @{ $ns->{query_queue} }, @$queue;	2127	push @{ $ns->{query_queue} }, @$queue;
1612		2128
1613	if (@{ $ns->{query_queue} } == @$queue) {	2129	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2130	if (@$queue) {
…		…
1618	}	2134	}
1619	}	2135	}
1620	},	2136	},
1621	);	2137	);
1622		2138
1623	=item $client->coro (\&cb)	2139	=item $client->async (\&cb)
1624		2140
1625	Create a new coroutine, running the specified callback. The coroutine will	2141	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2142	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2143	or loss of connection).
1628		2144
1629	=cut	2145	=cut
1630		2146
1631	sub cf::client::coro {	2147	sub cf::client::async {
1632	my ($self, $cb) = @_;	2148	my ($self, $cb) = @_;
1633		2149
1634	my $coro; $coro = async {	2150	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2151
1641	$coro->on_destroy (sub {	2152	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2153	delete $self->{_coro}{$coro+0};
1643	});	2154	});
1644		2155
…		…
1677		2188
1678	# here we export the classes and methods available to script code	2189	# here we export the classes and methods available to script code
1679		2190
1680	=pod	2191	=pod
1681		2192
1682	The following fucntions and emthods are available within a safe environment:	2193	The following functions and methods are available within a safe environment:
1683		2194
1684	cf::object contr pay_amount pay_player map	2195	cf::object contr pay_amount pay_player map
1685	cf::object::player player	2196	cf::object::player player
1686	cf::player peaceful	2197	cf::player peaceful
1687	cf::map trigger	2198	cf::map trigger
…		…
1772	#############################################################################	2283	#############################################################################
1773		2284
1774	=head2 EXTENSION DATABASE SUPPORT	2285	=head2 EXTENSION DATABASE SUPPORT
1775		2286
1776	Crossfire maintains a very simple database for extension use. It can	2287	Crossfire maintains a very simple database for extension use. It can
1777	currently store anything that can be serialised using Storable, which	2288	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1778	excludes objects.	2289	convert to/from binary).
1779		2290
1780	The parameter C<$family> should best start with the name of the extension	2291	The parameter C<$family> should best start with the name of the extension
1781	using it, it should be unique.	2292	using it, it should be unique.
1782		2293
1783	=over 4	2294	=over 4
1784		2295
1785	=item $hashref = cf::db_get $family
1786
1787	Return a hashref for use by the extension C<$family>, which can be
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790
1791	=item $value = cf::db_get $family => $key	2296	=item $value = cf::db_get $family => $key
1792		2297
1793	Returns a single value from the database	2298	Returns a single value from the database.
1794
1795	=item cf::db_put $family => $hashref
1796
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799		2299
1800	=item cf::db_put $family => $key => $value	2300	=item cf::db_put $family => $key => $value
1801		2301
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you	2302	Stores the given C<$value> in the family.
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812		2303
1813	=cut	2304	=cut
1814		2305
1815	our $DB;	2306	our $DB;
1816		2307
1817	{	2308	sub db_init {
1818	my $path = cf::localdir . "/database.pst";	2309	unless ($DB) {
		2310	$DB = BDB::db_create $DB_ENV;
1819		2311
1820	sub db_load() {	2312	cf::sync_job {
1821	warn "loading database $path\n";#d# remove later	2313	eval {
1822	$DB = stat $path ? Storable::retrieve $path : { };	2314	$DB->set_flags (BDB::CHKSUM);
1823	}
1824		2315
1825	my $pid;	2316	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1826		2317	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1827	sub db_save() {	2318	cf::cleanup "db_open(db): $!" if $!;
1828	warn "saving database $path\n";#d# remove later	2319	};
1829	waitpid $pid, 0 if $pid;	2320	cf::cleanup "db_open(db): $@" if $@;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}	2321	};
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});	2322	}
		2323	}
1848		2324
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}
1853
1854	sub db_get($;$) {	2325	sub db_get($$) {
1855	@_ >= 2	2326	my $key = "$_[0]/$_[1]";
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859		2327
		2328	cf::sync_job {
		2329	BDB::db_get $DB, undef, $key, my $data;
		2330
		2331	$! ? ()
		2332	: $data
		2333	}
		2334	}
		2335
1860	sub db_put($$;$) {	2336	sub db_put($$$) {
1861	if (@_ >= 3) {	2337	BDB::dbreq_pri 4;
1862	$DB->{$_[0]}{$_[1]} = $_[2];	2338	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1863	} else {	2339	}
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868		2340
1869	cf::global->attach (	2341	=item cf::cache $id => [$paths...], $processversion => $process
1870	prio => 10000,	2342
1871	on_cleanup => sub {	2343	Generic caching function that returns the value of the resource $id,
1872	db_sync;	2344	caching and regenerating as required.
		2345
		2346	This function can block.
		2347
		2348	=cut
		2349
		2350	sub cache {
		2351	my ($id, $src, $processversion, $process) = @_;
		2352
		2353	my $meta =
		2354	join "\x00",
		2355	$processversion,
		2356	map {
		2357	aio_stat $_
		2358	and Carp::croak "$_: $!";
		2359
		2360	($_, (stat _)[7,9])
		2361	} @$src;
		2362
		2363	my $dbmeta = db_get cache => "$id/meta";
		2364	if ($dbmeta ne $meta) {
		2365	# changed, we may need to process
		2366
		2367	my @data;
		2368	my $md5;
		2369
		2370	for (0 .. $#$src) {
		2371	0 <= aio_load $src->[$_], $data[$_]
		2372	or Carp::croak "$src->[$_]: $!";
1873	},	2373	}
1874	);	2374
		2375	# if processing is expensive, check
		2376	# checksum first
		2377	if (1) {
		2378	$md5 =
		2379	join "\x00",
		2380	$processversion,
		2381	map {
		2382	Coro::cede;
		2383	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2384	} 0.. $#$src;
		2385
		2386
		2387	my $dbmd5 = db_get cache => "$id/md5";
		2388	if ($dbmd5 eq $md5) {
		2389	db_put cache => "$id/meta", $meta;
		2390
		2391	return db_get cache => "$id/data";
		2392	}
		2393	}
		2394
		2395	my $t1 = Time::HiRes::time;
		2396	my $data = $process->(\@data);
		2397	my $t2 = Time::HiRes::time;
		2398
		2399	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2400
		2401	db_put cache => "$id/data", $data;
		2402	db_put cache => "$id/md5" , $md5;
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return $data;
		2406	}
		2407
		2408	db_get cache => "$id/data"
1875	}	2409	}
		2410
		2411	=item fork_call { }, $args
		2412
		2413	Executes the given code block with the given arguments in a seperate
		2414	process, returning the results. Everything must be serialisable with
		2415	Coro::Storable. May, of course, block. Note that the executed sub may
		2416	never block itself or use any form of Event handling.
		2417
		2418	=cut
		2419
		2420	sub fork_call(&@) {
		2421	my ($cb, @args) = @_;
		2422
		2423	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2424	# or die "socketpair: $!";
		2425	pipe my $fh1, my $fh2
		2426	or die "pipe: $!";
		2427
		2428	if (my $pid = fork) {
		2429	close $fh2;
		2430
		2431	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2432	$res = Coro::Storable::thaw $res;
		2433
		2434	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2435
		2436	die $$res unless "ARRAY" eq ref $res;
		2437
		2438	return wantarray ? @$res : $res->[-1];
		2439	} else {
		2440	reset_signals;
		2441	local $SIG{__WARN__};
		2442	local $SIG{__DIE__};
		2443	eval {
		2444	close $fh1;
		2445
		2446	my @res = eval { $cb->(@args) };
		2447	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2448	};
		2449
		2450	warn $@ if $@;
		2451	_exit 0;
		2452	}
		2453	}
		2454
		2455
1876		2456
1877	#############################################################################	2457	#############################################################################
1878	# the server's main()	2458	# the server's init and main functions
		2459
		2460	sub load_facedata($) {
		2461	my ($path) = @_;
		2462
		2463	warn "loading facedata from $path\n";
		2464
		2465	my $facedata;
		2466	0 < aio_load $path, $facedata
		2467	or die "$path: $!";
		2468
		2469	$facedata = Coro::Storable::thaw $facedata;
		2470
		2471	$facedata->{version} == 2
		2472	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2473
		2474	{
		2475	my $faces = $facedata->{faceinfo};
		2476
		2477	while (my ($face, $info) = each %$faces) {
		2478	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2479	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2480	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2481	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2482	Coro::cede;
		2483	}
		2484
		2485	while (my ($face, $info) = each %$faces) {
		2486	next unless $info->{smooth};
		2487	my $idx = cf::face::find $face
		2488	or next;
		2489	if (my $smooth = cf::face::find $info->{smooth}) {
		2490	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2491	} else {
		2492	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2493	}
		2494	Coro::cede;
		2495	}
		2496	}
		2497
		2498	{
		2499	my $anims = $facedata->{animinfo};
		2500
		2501	while (my ($anim, $info) = each %$anims) {
		2502	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2503	Coro::cede;
		2504	}
		2505
		2506	cf::anim::invalidate_all; # d'oh
		2507	}
		2508
		2509	1
		2510	}
		2511
		2512	sub reload_regions {
		2513	load_resource_file "$MAPDIR/regions"
		2514	or die "unable to load regions file\n";
		2515	}
		2516
		2517	sub reload_facedata {
		2518	load_facedata "$DATADIR/facedata"
		2519	or die "unable to load facedata\n";
		2520	}
		2521
		2522	sub reload_archetypes {
		2523	load_resource_file "$DATADIR/archetypes"
		2524	or die "unable to load archetypes\n";
		2525	}
		2526
		2527	sub reload_treasures {
		2528	load_resource_file "$DATADIR/treasures"
		2529	or die "unable to load treasurelists\n";
		2530	}
		2531
		2532	sub reload_resources {
		2533	warn "reloading resource files...\n";
		2534
		2535	reload_regions;
		2536	reload_facedata;
		2537	reload_archetypes;
		2538	reload_treasures;
		2539
		2540	warn "finished reloading resource files\n";
		2541	}
		2542
		2543	sub init {
		2544	reload_resources;
		2545	}
1879		2546
1880	sub cfg_load {	2547	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2548	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2549	or return;
1883		2550
1884	local $/;	2551	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2552	*CFG = YAML::Syck::Load <$fh>;
		2553
		2554	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2555
		2556	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2557	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2558
		2559	if (exists $CFG{mlockall}) {
		2560	eval {
		2561	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2562	and die "WARNING: m(un)lockall failed: $!\n";
		2563	};
		2564	warn $@ if $@;
		2565	}
1886	}	2566	}
1887		2567
1888	sub main {	2568	sub main {
1889	# we must not ever block the main coroutine	2569	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2570	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2571	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2572	(async {
1893	Event::one_event;	2573	Event::one_event;
1894	})->();	2574	})->prio (Coro::PRIO_MAX);
1895	};	2575	};
1896		2576
1897	cfg_load;	2577	cfg_load;
1898	db_load;	2578	db_init;
1899	load_extensions;	2579	load_extensions;
		2580
		2581	$TICK_WATCHER->start;
1900	Event::loop;	2582	Event::loop;
1901	}	2583	}
1902		2584
1903	#############################################################################	2585	#############################################################################
1904	# initialisation	2586	# initialisation and cleanup
1905		2587
		2588	# install some emergency cleanup handlers
		2589	BEGIN {
		2590	for my $signal (qw(INT HUP TERM)) {
		2591	Event->signal (
		2592	reentrant => 0,
		2593	data => WF_AUTOCANCEL,
		2594	signal => $signal,
		2595	prio => 0,
		2596	cb => sub {
		2597	cf::cleanup "SIG$signal";
		2598	},
		2599	);
		2600	}
		2601	}
		2602
		2603	sub emergency_save() {
		2604	my $freeze_guard = cf::freeze_mainloop;
		2605
		2606	warn "enter emergency perl save\n";
		2607
		2608	cf::sync_job {
		2609	# use a peculiar iteration method to avoid tripping on perl
		2610	# refcount bugs in for. also avoids problems with players
		2611	# and maps saved/destroyed asynchronously.
		2612	warn "begin emergency player save\n";
		2613	for my $login (keys %cf::PLAYER) {
		2614	my $pl = $cf::PLAYER{$login} or next;
		2615	$pl->valid or next;
		2616	$pl->save;
		2617	}
		2618	warn "end emergency player save\n";
		2619
		2620	warn "begin emergency map save\n";
		2621	for my $path (keys %cf::MAP) {
		2622	my $map = $cf::MAP{$path} or next;
		2623	$map->valid or next;
		2624	$map->save;
		2625	}
		2626	warn "end emergency map save\n";
		2627
		2628	warn "begin emergency database checkpoint\n";
		2629	BDB::db_env_txn_checkpoint $DB_ENV;
		2630	warn "end emergency database checkpoint\n";
		2631	};
		2632
		2633	warn "leave emergency perl save\n";
		2634	}
		2635
		2636	sub post_cleanup {
		2637	my ($make_core) = @_;
		2638
		2639	warn Carp::longmess "post_cleanup backtrace"
		2640	if $make_core;
		2641	}
		2642
1906	sub reload() {	2643	sub do_reload_perl() {
1907	# can/must only be called in main	2644	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	2645	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	2646	warn "can only reload from main coroutine";
1910	return;	2647	return;
1911	}	2648	}
1912		2649
1913	warn "reloading...";	2650	warn "reloading...";
1914		2651
1915	local $FREEZE = 1;	2652	warn "entering sync_job";
		2653
		2654	cf::sync_job {
		2655	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	2656	cf::emergency_save;
		2657	cf::write_runtime; # external watchdog should not bark
1917		2658
1918	eval {	2659	warn "syncing database to disk";
		2660	BDB::db_env_txn_checkpoint $DB_ENV;
		2661
1919	# if anything goes wrong in here, we should simply crash as we already saved	2662	# if anything goes wrong in here, we should simply crash as we already saved
1920		2663
1921	# cancel all watchers	2664	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	2665	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	2666	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	2667	}
1925		2668
		2669	warn "flushing outstanding aio requests";
		2670	for (;;) {
		2671	BDB::flush;
		2672	IO::AIO::flush;
		2673	Coro::cede;
		2674	last unless IO::AIO::nreqs || BDB::nreqs;
		2675	warn "iterate...";
		2676	}
		2677
		2678	++$RELOAD;
		2679
1926	# cancel all extension coros	2680	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	2681	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	2682	%EXT_CORO = ();
1929		2683
1930	# unload all extensions	2684	warn "removing commands";
1931	for (@exts) {	2685	%COMMAND = ();
		2686
		2687	warn "removing ext commands";
		2688	%EXTCMD = ();
		2689
		2690	warn "unloading/nuking all extensions";
		2691	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	2692	warn "... unloading $pkg";
1933	unload_extension $_;	2693
		2694	if (my $cb = $pkg->can ("unload")) {
		2695	eval {
		2696	$cb->($pkg);
		2697	1
		2698	} or warn "$pkg unloaded, but with errors: $@";
1934	}	2699	}
1935		2700
		2701	warn "... nuking $pkg";
		2702	Symbol::delete_package $pkg;
		2703	}
		2704
1936	# unload all modules loaded from $LIBDIR	2705	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	2706	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2707	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		2708
1940	warn "removing <$k>";	2709	warn "... unloading $k";
1941	delete $INC{$k};	2710	delete $INC{$k};
1942		2711
1943	$k =~ s/\.pm$//;	2712	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	2713	$k =~ s/\//::/g;
1945		2714
…		…
1948	}	2717	}
1949		2718
1950	Symbol::delete_package $k;	2719	Symbol::delete_package $k;
1951	}	2720	}
1952		2721
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	2722	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	2723	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2724	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		2725
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	2726	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	2727	delete $INC{"cf.pm"};
		2728	delete $INC{"cf/pod.pm"};
1966		2729
1967	# don't, removes xs symbols, too,	2730	# don't, removes xs symbols, too,
1968	# and global variables created in xs	2731	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	2732	#Symbol::delete_package __PACKAGE__;
1970		2733
1971	# reload cf.pm	2734	warn "unload completed, starting to reload now";
		2735
1972	warn "reloading cf.pm";	2736	warn "reloading cf.pm";
1973	require cf;	2737	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2738	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		2739
1976	# load config and database again	2740	warn "loading config and database again";
1977	cf::cfg_load;	2741	cf::cfg_load;
1978	cf::db_load;
1979		2742
1980	# load extensions
1981	warn "load extensions";	2743	warn "loading extensions";
1982	cf::load_extensions;	2744	cf::load_extensions;
1983		2745
1984	# reattach attachments to objects	2746	warn "reattaching attachments to objects/players";
1985	warn "reattach";	2747	_global_reattach; # objects, sockets
1986	_global_reattach;	2748	warn "reattaching attachments to maps";
1987	};	2749	reattach $_ for values %MAP;
		2750	warn "reattaching attachments to players";
		2751	reattach $_ for values %PLAYER;
1988		2752
1989	if ($@) {	2753	warn "leaving sync_job";
		2754
		2755	1
		2756	} or do {
1990	warn $@;	2757	warn $@;
1991	warn "error while reloading, exiting.";	2758	warn "error while reloading, exiting.";
1992	exit 1;	2759	exit 1;
1993	}	2760	};
1994		2761
1995	warn "reloaded successfully";	2762	warn "reloaded";
1996	};	2763	};
1997		2764
1998	#############################################################################	2765	our $RELOAD_WATCHER; # used only during reload
1999		2766
2000	unless ($LINK_MAP) {	2767	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	2768	# doing reload synchronously and two reloads happen back-to-back,
		2769	# coro crashes during coro_state_free->destroy here.
2002		2770
2003	$LINK_MAP->width (41);	2771	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	2772	reentrant => 0,
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,	2773	after => 0,
		2774	data => WF_AUTOCANCEL,
2013	cb => sub {	2775	cb => sub {
2014	$_[0]->w->cancel;	2776	do_reload_perl;
2015		2777	undef $RELOAD_WATCHER;
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});	2778	},
2034		2779	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	2780	}
2040
2041	register "<global>", __PACKAGE__;
2042		2781
2043	register_command "reload" => sub {	2782	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	2783	my ($who, $arg) = @_;
2045		2784
2046	if ($who->flag (FLAG_WIZ)) {	2785	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	2786	$who->message ("reloading server.");
		2787	async { reload_perl };
2050	}	2788	}
2051	};	2789	};
2052		2790
2053	unshift @INC, $LIBDIR;	2791	unshift @INC, $LIBDIR;
		2792
		2793	my $bug_warning = 0;
		2794
		2795	our @WAIT_FOR_TICK;
		2796	our @WAIT_FOR_TICK_BEGIN;
		2797
		2798	sub wait_for_tick {
		2799	return unless $TICK_WATCHER->is_active;
		2800	return if $Coro::current == $Coro::main;
		2801
		2802	my $signal = new Coro::Signal;
		2803	push @WAIT_FOR_TICK, $signal;
		2804	$signal->wait;
		2805	}
		2806
		2807	sub wait_for_tick_begin {
		2808	return unless $TICK_WATCHER->is_active;
		2809	return if $Coro::current == $Coro::main;
		2810
		2811	my $signal = new Coro::Signal;
		2812	push @WAIT_FOR_TICK_BEGIN, $signal;
		2813	$signal->wait;
		2814	}
2054		2815
2055	$TICK_WATCHER = Event->timer (	2816	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	2817	reentrant => 0,
		2818	parked => 1,
2057	prio => 0,	2819	prio => 0,
2058	at => $NEXT_TICK || $TICK,	2820	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	2821	data => WF_AUTOCANCEL,
2060	cb => sub {	2822	cb => sub {
2061	unless ($FREEZE) {	2823	if ($Coro::current != $Coro::main) {
		2824	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2825	unless ++$bug_warning > 10;
		2826	return;
		2827	}
		2828
		2829	$NOW = Event::time;
		2830
2062	cf::server_tick; # one server iteration	2831	cf::server_tick; # one server iteration
		2832
2063	$RUNTIME += $TICK;	2833	$RUNTIME += $TICK;
2064	}
2065
2066	$NEXT_TICK += $TICK;	2834	$NEXT_TICK += $TICK;
		2835
		2836	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2837	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2838	Coro::async_pool {
		2839	write_runtime
		2840	or warn "ERROR: unable to write runtime file: $!";
		2841	};
		2842	}
		2843
		2844	# my $AFTER = Event::time;
		2845	# warn $AFTER - $NOW;#d#
2067		2846
2068	# if we are delayed by four ticks or more, skip them all	2847	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2848	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2070		2849
2071	$TICK_WATCHER->at ($NEXT_TICK);	2850	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	2851	$TICK_WATCHER->start;
		2852
		2853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2854	$sig->send;
		2855	}
		2856	while (my $sig = shift @WAIT_FOR_TICK) {
		2857	$sig->send;
		2858	}
		2859
		2860	_post_tick;
2073	},	2861	},
2074	);	2862	);
2075		2863
		2864	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	2865	BDB::max_poll_time $TICK * 0.1;
2077		2866	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	2867	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	2868	fd => BDB::poll_fileno,
2080	poll => 'r',	2869	poll => 'r',
2081	prio => 5,	2870	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	2871	data => WF_AUTOCANCEL,
2088	after => 0,	2872	cb => \&BDB::poll_cb,
2089	interval => 10,	2873	);
2090	cb => sub {	2874	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	2875
2092	write_runtime	2876	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	2877	my $status;
		2878	my $current = $Coro::current;
		2879	(
		2880	sub {
		2881	$status = $!;
		2882	$current->ready; undef $current;
		2883	},
		2884	sub {
		2885	Coro::schedule while defined $current;
		2886	$! = $status;
		2887	},
		2888	)
		2889	};
		2890
		2891	unless ($DB_ENV) {
		2892	$DB_ENV = BDB::db_env_create;
		2893
		2894	cf::sync_job {
		2895	eval {
		2896	BDB::db_env_open
		2897	$DB_ENV,
		2898	$BDBDIR,
		2899	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2900	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2901	0666;
		2902
		2903	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2904
		2905	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2906	$DB_ENV->set_lk_detect;
		2907	};
		2908
		2909	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	2910	};
2095	},	2911	}
2096	);	2912	}
		2913
		2914	{
		2915	IO::AIO::min_parallel 8;
		2916
		2917	undef $Coro::AIO::WATCHER;
		2918	IO::AIO::max_poll_time $TICK * 0.1;
		2919	$AIO_POLL_WATCHER = Event->io (
		2920	reentrant => 0,
		2921	data => WF_AUTOCANCEL,
		2922	fd => IO::AIO::poll_fileno,
		2923	poll => 'r',
		2924	prio => 6,
		2925	cb => \&IO::AIO::poll_cb,
		2926	);
		2927	}
		2928
		2929	my $_log_backtrace;
		2930
		2931	sub _log_backtrace {
		2932	my ($msg, @addr) = @_;
		2933
		2934	$msg =~ s/\n//;
		2935
		2936	# limit the # of concurrent backtraces
		2937	if ($_log_backtrace < 2) {
		2938	++$_log_backtrace;
		2939	async {
		2940	my @bt = fork_call {
		2941	@addr = map { sprintf "%x", $_ } @addr;
		2942	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2943	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2944	or die "addr2line: $!";
		2945
		2946	my @funcs;
		2947	my @res = <$fh>;
		2948	chomp for @res;
		2949	while (@res) {
		2950	my ($func, $line) = splice @res, 0, 2, ();
		2951	push @funcs, "[$func] $line";
		2952	}
		2953
		2954	@funcs
		2955	};
		2956
		2957	LOG llevInfo, "[ABT] $msg\n";
		2958	LOG llevInfo, "[ABT] $_\n" for @bt;
		2959	--$_log_backtrace;
		2960	};
		2961	} else {
		2962	LOG llevInfo, "[ABT] $msg\n";
		2963	LOG llevInfo, "[ABT] [suppressed]\n";
		2964	}
		2965	}
		2966
		2967	# load additional modules
		2968	use cf::pod;
		2969
		2970	END { cf::emergency_save }
2097		2971
2098	1	2972	1
2099		2973

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