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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.141 by root, Fri Jan 5 20:08:53 2007 UTC vs.
Revision 1.264 by root, Sun May 6 05:44:48 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 (Coro::PRIO_MAX); # 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 $RANDOM_MAPS = cf::localdir . "/random";	91
55	our %EXT_CORO;	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
56		94
57	binmode STDOUT;	95	binmode STDOUT;
58	binmode STDERR;	96	binmode STDERR;
59		97
60	# read virtual server time, if available	98	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	100	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	101	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	102	$RUNTIME = <$fh> + 0.;
65	}	103	}
66		104
67	mkdir cf::localdir;	105	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		107
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	108	our $EMERGENCY_POSITION;
		109
		110	sub cf::map::normalise;
76		111
77	#############################################################################	112	#############################################################################
78		113
79	=head2 GLOBAL VARIABLES	114	=head2 GLOBAL VARIABLES
80		115
…		…
87	=item $cf::RUNTIME	122	=item $cf::RUNTIME
88		123
89	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
90	every server tick.	125	every server tick.
91		126
92	=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
93		130
94	The perl library directory, where extensions and cf-specific modules can	131	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		135
97	=item $cf::NOW	136	=item $cf::NOW
98		137
99	The time of the last (current) server tick.	138	The time of the last (current) server tick.
100		139
…		…
104		143
105	=item %cf::CFG	144	=item %cf::CFG
106		145
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	146	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		154
110	=back	155	=back
111		156
112	=cut	157	=cut
113		158
114	BEGIN {	159	BEGIN {
115	*CORE::GLOBAL::warn = sub {	160	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	161	my $msg = join "", @_;
117	utf8::encode $msg;
118		162
119	$msg .= "\n"	163	$msg .= "\n"
120	unless $msg =~ /\n$/;	164	unless $msg =~ /\n$/;
121		165
		166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		167
		168	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	169	LOG llevError, $msg;
123	};	170	};
124	}	171	}
125		172
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
…		…
145		192
146	$Event::DIED = sub {	193	$Event::DIED = sub {
147	warn "error in event callback: @_";	194	warn "error in event callback: @_";
148	};	195	};
149		196
150	my %ext_pkg;
151	my @exts;
152	my @hook;
153
154	=head2 UTILITY FUNCTIONS	197	=head2 UTILITY FUNCTIONS
155		198
156	=over 4	199	=over 4
157		200
158	=cut	201	=item dumpval $ref
159		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
160	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
161		225
162	=item $ref = cf::from_json $json	226	=item $ref = cf::from_json $json
163		227
164	Converts a JSON string into the corresponding perl data structure.	228	Converts a JSON string into the corresponding perl data structure.
165		229
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	230	=item $json = cf::to_json $ref
174		231
175	Converts a perl data structure into its JSON representation.	232	Converts a perl data structure into its JSON representation.
176
177	=cut
178
179	sub to_json($) {
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
181	JSON::Syck::Dump $_[0]
182	}
183		233
184	=item cf::lock_wait $string	234	=item cf::lock_wait $string
185		235
186	Wait until the given lock is available. See cf::lock_acquire.	236	Wait until the given lock is available. See cf::lock_acquire.
187		237
…		…
193	returned.	243	returned.
194		244
195	Lock names should begin with a unique identifier (for example, cf::map::find	245	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	246	uses map_find and cf::map::load uses map_load).
197		247
		248	=item $locked = cf::lock_active $string
		249
		250	Return true if the lock is currently active, i.e. somebody has locked it.
		251
198	=cut	252	=cut
199		253
200	our %LOCK;	254	our %LOCK;
201		255
202	sub lock_wait($) {	256	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	275	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	276	$_->ready for @{ delete $LOCK{$key} };
223	}	277	}
224	}	278	}
225		279
		280	sub lock_active($) {
		281	my ($key) = @_;
		282
		283	! ! $LOCK{$key}
		284	}
		285
226	sub freeze_mainloop {	286	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	287	return unless $TICK_WATCHER->is_active;
228		288
229	my $guard = Coro::guard { $TICK_WATCHER->start };	289	my $guard = Coro::guard {
		290	$TICK_WATCHER->start;
		291	};
230	$TICK_WATCHER->stop;	292	$TICK_WATCHER->stop;
231	$guard	293	$guard
232	}	294	}
233		295
234	=item cf::async { BLOCK }	296	=item cf::async { BLOCK }
…		…
286	}	348	}
287	}	349	}
288		350
289	=item $coro = cf::async_ext { BLOCK }	351	=item $coro = cf::async_ext { BLOCK }
290		352
291	Like async, but this coro is automcatially being canceled when the	353	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	354	extension calling this is being unloaded.
293		355
294	=cut	356	=cut
295		357
296	sub async_ext(&) {	358	sub async_ext(&) {
…		…
305		367
306	$coro	368	$coro
307	}	369	}
308		370
309	sub write_runtime {	371	sub write_runtime {
310	my $runtime = cf::localdir . "/runtime";	372	my $runtime = "$LOCALDIR/runtime";
311		373
		374	# first touch the runtime file to show we are still running:
		375	# the fsync below can take a very very long time.
		376
		377	warn "touching runtime...\n";#d#
		378	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		379	utime undef, undef, $fh;
		380	}
		381
		382	my $guard = cf::lock_acquire "write_runtime";
		383
		384	warn "starting to write runtime...\n";#d#
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	385	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
313	or return;	386	or return;
314		387
		388	my $value = $cf::RUNTIME + 90 + 10;
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	389	# 10 is the runtime save interval, for a monotonic clock
		390	# 60 allows for the watchdog to kill the server.
		391
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0	392	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;	393	and return;
318		394
		395	# always fsync - this file is important
319	aio_fsync $fh	396	aio_fsync $fh
320	and return;	397	and return;
321		398
		399	# touch it again to show we are up-to-date
		400	utime undef, undef, $fh;
		401
322	close $fh	402	close $fh
323	or return;	403	or return;
324		404
325	aio_rename "$runtime~", $runtime	405	aio_rename "$runtime~", $runtime
326	and return;	406	and return;
327		407
		408	warn "... done writing runtime.\n";#d#
		409
328	1	410	1
329	}	411	}
330		412
		413	=item cf::datalog type => key => value, ...
		414
		415	Log a datalog packet of the given type with the given key-value pairs.
		416
		417	=cut
		418
		419	sub datalog($@) {
		420	my ($type, %kv) = @_;
		421	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		422	}
		423
331	=back	424	=back
332		425
333	=cut	426	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		427
455	#############################################################################	428	#############################################################################
456		429
457	=head2 ATTACHABLE OBJECTS	430	=head2 ATTACHABLE OBJECTS
458		431
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	557	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	558	our @CB_MAP = ();
586		559
587	my %attachment;	560	my %attachment;
588		561
		562	sub cf::attachable::thawer_merge {
		563	# simply override everything except _meta
		564	local $_[0]{_meta};
		565	%{$_[0]} = %{$_[1]};
		566	}
		567
589	sub _attach_cb($$$$) {	568	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	569	my ($registry, $event, $prio, $cb) = @_;
591		570
592	use sort 'stable';	571	use sort 'stable';
593		572
…		…
764	# object support	743	# object support
765		744
766	sub reattach {	745	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	746	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	747	my ($obj) = @_;
		748
		749	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		750
770	my $registry = $obj->registry;	751	my $registry = $obj->registry;
771		752
772	@$registry = ();	753	@$registry = ();
773		754
…		…
820	$filename, length $$rdata, scalar @$objs;	801	$filename, length $$rdata, scalar @$objs;
821		802
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	803	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	804	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	805	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	806	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	807	close $fh;
827		808
828	if (@$objs) {	809	if (@$objs) {
829	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	810	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	811	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	812	my $data = Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	813	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	814	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	815	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	816	aio_rename "$filename.pst~", "$filename.pst";
836	}	817	}
837	} else {	818	} else {
838	aio_unlink "$filename.pst";	819	aio_unlink "$filename.pst";
…		…
905	=cut	886	=cut
906		887
907	sub register_extcmd {	888	sub register_extcmd {
908	my ($name, $cb) = @_;	889	my ($name, $cb) = @_;
909		890
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	891	$EXTCMD{$name} = $cb;
914	}	892	}
915		893
916	cf::player->attach (	894	cf::player->attach (
917	on_command => sub {	895	on_command => sub {
918	my ($pl, $name, $params) = @_;	896	my ($pl, $name, $params) = @_;
…		…
931		909
932	my $msg = eval { from_json $buf };	910	my $msg = eval { from_json $buf };
933		911
934	if (ref $msg) {	912	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	913	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	914	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	915	$pl->ext_reply ($msg->{msgid}, %reply);
938	}	916	}
939	}	917	}
940	} else {	918	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	919	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
943		921
944	cf::override;	922	cf::override;
945	},	923	},
946	);	924	);
947		925
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	926	sub load_extension {
955	my ($path) = @_;	927	my ($path) = @_;
956		928
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	929	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
958	my $base = $1;	930	my $base = $1;
959	my $pkg = $1;	931	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;	932	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";	933	$pkg = "ext::$pkg";
962		934
963	warn "loading '$path' into '$pkg'\n";	935	warn "... loading '$path' into '$pkg'\n";
964		936
965	open my $fh, "<:utf8", $path	937	open my $fh, "<:utf8", $path
966	or die "$path: $!";	938	or die "$path: $!";
967		939
968	my $source =	940	my $source =
969	"package $pkg; use strict; use utf8;\n"	941	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"	942	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })	943	. (do { local $/; <$fh> })
972	. "\n};\n1";	944	. "\n};\n1";
973		945
974	eval $source	946	unless (eval $source) {
975	or die $@ ? "$path: $@\n"	947	my $msg = $@ ? "$path: $@\n"
976	: "extension disabled.\n";	948	: "extension disabled.\n";
977		949	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
978	push @exts, $pkg;	950	warn $@;
979	$ext_pkg{$base} = $pkg;	951	warn "mandatory extension failed to load, exiting.\n";
980		952	exit 1;
981	# no strict 'refs';	953	}
982	# @{"$pkg\::ISA"} = ext::;	954	die $@;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	955	}
997		956
998	# remove commands	957	push @EXTS, $pkg;
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}	958	}
1023		959
1024	sub load_extensions {	960	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {	961	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;	962	next unless -r $ext;
…		…
1030	} or warn "$ext not loaded: $@";	966	} or warn "$ext not loaded: $@";
1031	}	967	}
1032	}	968	}
1033		969
1034	#############################################################################	970	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071		971
1072	=head2 CORE EXTENSIONS	972	=head2 CORE EXTENSIONS
1073		973
1074	Functions and methods that extend core crossfire objects.	974	Functions and methods that extend core crossfire objects.
1075		975
		976	=cut
		977
		978	package cf::player;
		979
		980	use Coro::AIO;
		981
1076	=head3 cf::player	982	=head3 cf::player
1077		983
1078	=over 4	984	=over 4
1079		985
1080	=item cf::player::exists $login	986	=item cf::player::find $login
1081		987
1082	Returns true when the given account exists.	988	Returns the given player object, loading it if necessary (might block).
1083		989
1084	=cut	990	=cut
1085		991
1086	sub cf::player::exists($) {	992	sub playerdir($) {
1087	cf::player::find $_[0]	993	"$PLAYERDIR/"
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	994	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1089	}	995	}
1090		996
		997	sub path($) {
		998	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		999
		1000	(playerdir $login) . "/playerdata"
		1001	}
		1002
		1003	sub find_active($) {
		1004	$cf::PLAYER{$_[0]}
		1005	and $cf::PLAYER{$_[0]}->active
		1006	and $cf::PLAYER{$_[0]}
		1007	}
		1008
		1009	sub exists($) {
		1010	my ($login) = @_;
		1011
		1012	$cf::PLAYER{$login}
		1013	or cf::sync_job { !aio_stat path $login }
		1014	}
		1015
		1016	sub find($) {
		1017	return $cf::PLAYER{$_[0]} || do {
		1018	my $login = $_[0];
		1019
		1020	my $guard = cf::lock_acquire "user_find:$login";
		1021
		1022	$cf::PLAYER{$_[0]} || do {
		1023	# rename old playerfiles to new ones
		1024	#TODO: remove when no longer required
		1025	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1026	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1027	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1028	aio_unlink +(playerdir $login) . "/$login.pl";
		1029
		1030	my $pl = load_pl path $login
		1031	or return;
		1032	$cf::PLAYER{$login} = $pl
		1033	}
		1034	}
		1035	}
		1036
		1037	sub save($) {
		1038	my ($pl) = @_;
		1039
		1040	return if $pl->{deny_save};
		1041
		1042	my $path = path $pl;
		1043	my $guard = cf::lock_acquire "user_save:$path";
		1044
		1045	return if $pl->{deny_save};
		1046
		1047	aio_mkdir playerdir $pl, 0770;
		1048	$pl->{last_save} = $cf::RUNTIME;
		1049
		1050	$pl->save_pl ($path);
		1051	Coro::cede;
		1052	}
		1053
		1054	sub new($) {
		1055	my ($login) = @_;
		1056
		1057	my $self = create;
		1058
		1059	$self->ob->name ($login);
		1060	$self->{deny_save} = 1;
		1061
		1062	$cf::PLAYER{$login} = $self;
		1063
		1064	$self
		1065	}
		1066
		1067	=item $pl->quit_character
		1068
		1069	Nukes the player without looking back. If logged in, the connection will
		1070	be destroyed. May block for a long time.
		1071
		1072	=cut
		1073
		1074	sub quit_character {
		1075	my ($pl) = @_;
		1076
		1077	my $name = $pl->ob->name;
		1078
		1079	$pl->{deny_save} = 1;
		1080	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1081
		1082	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1083	$pl->deactivate;
		1084	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1085	$pl->ns->destroy if $pl->ns;
		1086
		1087	my $path = playerdir $pl;
		1088	my $temp = "$path~$cf::RUNTIME~deleting~";
		1089	aio_rename $path, $temp;
		1090	delete $cf::PLAYER{$pl->ob->name};
		1091	$pl->destroy;
		1092
		1093	my $prefix = qr<^~\Q$name\E/>;
		1094
		1095	# nuke player maps
		1096	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1097
		1098	IO::AIO::aio_rmtree $temp;
		1099	}
		1100
		1101	=item $pl->kick
		1102
		1103	Kicks a player out of the game. This destroys the connection.
		1104
		1105	=cut
		1106
		1107	sub kick {
		1108	my ($pl, $kicker) = @_;
		1109
		1110	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1111	$pl->killer ("kicked");
		1112	$pl->ns->destroy;
		1113	}
		1114
		1115	=item cf::player::list_logins
		1116
		1117	Returns am arrayref of all valid playernames in the system, can take a
		1118	while and may block, so not sync_job-capable, ever.
		1119
		1120	=cut
		1121
		1122	sub list_logins {
		1123	my $dirs = aio_readdir $PLAYERDIR
		1124	or return [];
		1125
		1126	my @logins;
		1127
		1128	for my $login (@$dirs) {
		1129	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1130	aio_read $fh, 0, 512, my $buf, 0 or next;
		1131	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1132
		1133	utf8::decode $login;
		1134	push @logins, $login;
		1135	}
		1136
		1137	\@logins
		1138	}
		1139
		1140	=item $player->maps
		1141
		1142	Returns an arrayref of map paths that are private for this
		1143	player. May block.
		1144
		1145	=cut
		1146
		1147	sub maps($) {
		1148	my ($pl) = @_;
		1149
		1150	$pl = ref $pl ? $pl->ob->name : $pl;
		1151
		1152	my $files = aio_readdir playerdir $pl
		1153	or return;
		1154
		1155	my @paths;
		1156
		1157	for (@$files) {
		1158	utf8::decode $_;
		1159	next if /\.(?:pl|pst)$/;
		1160	next unless /^$PATH_SEP/o;
		1161
		1162	push @paths, cf::map::normalise "~$pl/$_";
		1163	}
		1164
		1165	\@paths
		1166	}
		1167
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1168	=item $player->ext_reply ($msgid, %msg)
1092		1169
1093	Sends an ext reply to the player.	1170	Sends an ext reply to the player.
1094		1171
1095	=cut	1172	=cut
1096		1173
1097	sub cf::player::ext_reply($$$%) {	1174	sub ext_reply($$%) {
1098	my ($self, $id, %msg) = @_;	1175	my ($self, $id, %msg) = @_;
1099		1176
1100	$msg{msgid} = $id;	1177	$msg{msgid} = $id;
1101		1178
1102	$self->send ("ext " . to_json \%msg);	1179	$self->send ("ext " . cf::to_json \%msg);
		1180	}
		1181
		1182	=item $player->ext_event ($type, %msg)
		1183
		1184	Sends an ext event to the client.
		1185
		1186	=cut
		1187
		1188	sub ext_event($$%) {
		1189	my ($self, $type, %msg) = @_;
		1190
		1191	$self->ns->ext_event ($type, %msg);
		1192	}
		1193
		1194	=head3 cf::region
		1195
		1196	=over 4
		1197
		1198	=cut
		1199
		1200	package cf::region;
		1201
		1202	=item cf::region::find_by_path $path
		1203
		1204	Tries to decuce the probable region for a map knowing only its path.
		1205
		1206	=cut
		1207
		1208	sub find_by_path($) {
		1209	my ($path) = @_;
		1210
		1211	my ($match, $specificity);
		1212
		1213	for my $region (list) {
		1214	if ($region->match && $path =~ $region->match) {
		1215	($match, $specificity) = ($region, $region->specificity)
		1216	if $region->specificity > $specificity;
		1217	}
		1218	}
		1219
		1220	$match
1103	}	1221	}
1104		1222
1105	=back	1223	=back
1106
1107		1224
1108	=head3 cf::map	1225	=head3 cf::map
1109		1226
1110	=over 4	1227	=over 4
1111		1228
…		…
1114	package cf::map;	1231	package cf::map;
1115		1232
1116	use Fcntl;	1233	use Fcntl;
1117	use Coro::AIO;	1234	use Coro::AIO;
1118		1235
		1236	use overload
		1237	'""' => \&as_string,
		1238	fallback => 1;
		1239
1119	our $MAX_RESET = 3600;	1240	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1241	our $DEFAULT_RESET = 3000;
1121		1242
1122	sub generate_random_map {	1243	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1244	my ($self, $rmp) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1245	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1246	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1247	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1248	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1249	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1250	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1251	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1252	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1253	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1254	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1255	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1256	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})	1257	(cf::region::find $rmp->{region}), $rmp->{custom}
		1258	)
		1259	}
		1260
		1261	=item cf::map->register ($regex, $prio)
		1262
		1263	Register a handler for the map path matching the given regex at the
		1264	givne priority (higher is better, built-in handlers have priority 0, the
		1265	default).
		1266
		1267	=cut
		1268
		1269	sub register {
		1270	my (undef, $regex, $prio) = @_;
		1271	my $pkg = caller;
		1272
		1273	no strict;
		1274	push @{"$pkg\::ISA"}, __PACKAGE__;
		1275
		1276	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1277	}
		1278
		1279	# also paths starting with '/'
		1280	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1281
		1282	sub thawer_merge {
		1283	my ($self, $merge) = @_;
		1284
		1285	# we have to keep some variables in memory intact
		1286	local $self->{path};
		1287	local $self->{load_path};
		1288	local $self->{deny_save};
		1289	local $self->{deny_reset};
		1290
		1291	$self->SUPER::thawer_merge ($merge);
		1292	}
		1293
		1294	sub normalise {
		1295	my ($path, $base) = @_;
		1296
		1297	$path = "$path"; # make sure its a string
		1298
		1299	$path =~ s/\.map$//;
		1300
		1301	# map plan:
		1302	#
		1303	# /! non-realised random map exit (special hack!)
		1304	# {... are special paths that are not being touched
		1305	# ?xxx/... are special absolute paths
		1306	# ?random/... random maps
		1307	# /... normal maps
		1308	# ~user/... per-player map of a specific user
		1309
		1310	$path =~ s/$PATH_SEP/\//go;
		1311
		1312	# treat it as relative path if it starts with
		1313	# something that looks reasonable
		1314	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1315	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1316
		1317	$base =~ s{[^/]+/?$}{};
		1318	$path = "$base/$path";
		1319	}
		1320
		1321	for ($path) {
		1322	redo if s{//}{/};
		1323	redo if s{/\.?/}{/};
		1324	redo if s{/[^/]+/\.\./}{/};
		1325	}
		1326
		1327	$path
		1328	}
		1329
		1330	sub new_from_path {
		1331	my (undef, $path, $base) = @_;
		1332
		1333	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1334
		1335	$path = normalise $path, $base;
		1336
		1337	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1338	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1339	my $self = bless cf::map::new, $pkg;
		1340	$self->{path} = $path; $self->path ($path);
		1341	$self->init; # pass $1 etc.
		1342	return $self;
		1343	}
		1344	}
		1345
		1346	Carp::carp "unable to resolve path '$path' (base '$base').";
		1347	()
		1348	}
		1349
		1350	sub init {
		1351	my ($self) = @_;
		1352
		1353	$self
		1354	}
		1355
		1356	sub as_string {
		1357	my ($self) = @_;
		1358
		1359	"$self->{path}"
		1360	}
		1361
		1362	# the displayed name, this is a one way mapping
		1363	sub visible_name {
		1364	&as_string
		1365	}
		1366
		1367	# the original (read-only) location
		1368	sub load_path {
		1369	my ($self) = @_;
		1370
		1371	"$MAPDIR/$self->{path}.map"
		1372	}
		1373
		1374	# the temporary/swap location
		1375	sub save_path {
		1376	my ($self) = @_;
		1377
		1378	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1379	"$TMPDIR/$path.map"
		1380	}
		1381
		1382	# the unique path, undef == no special unique path
		1383	sub uniq_path {
		1384	my ($self) = @_;
		1385
		1386	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1387	"$UNIQUEDIR/$path"
1139	}	1388	}
1140		1389
1141	# and all this just because we cannot iterate over	1390	# and all this just because we cannot iterate over
1142	# all maps in C++...	1391	# all maps in C++...
1143	sub change_all_map_light {	1392	sub change_all_map_light {
…		…
1145		1394
1146	$_->change_map_light ($change)	1395	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1396	for grep $_->outdoor, values %cf::MAP;
1148	}	1397	}
1149		1398
		1399	sub unlink_save {
		1400	my ($self) = @_;
		1401
		1402	utf8::encode (my $save = $self->save_path);
		1403	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1404	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1405	}
		1406
1150	sub try_load_header($) {	1407	sub load_header_from($) {
1151	my ($path) = @_;	1408	my ($self, $path) = @_;
1152		1409
1153	utf8::encode $path;	1410	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1411	#aio_open $path, O_RDONLY, 0
		1412	# or return;
		1413
		1414	$self->_load_header ($path)
1155	or return;	1415	or return;
1156		1416
1157	my $map = cf::map::new	1417	$self->{load_path} = $path;
		1418
		1419	1
		1420	}
		1421
		1422	sub load_header_orig {
		1423	my ($self) = @_;
		1424
		1425	$self->load_header_from ($self->load_path)
		1426	}
		1427
		1428	sub load_header_temp {
		1429	my ($self) = @_;
		1430
		1431	$self->load_header_from ($self->save_path)
		1432	}
		1433
		1434	sub prepare_temp {
		1435	my ($self) = @_;
		1436
		1437	$self->last_access ((delete $self->{last_access})
		1438	|| $cf::RUNTIME); #d#
		1439	# safety
		1440	$self->{instantiate_time} = $cf::RUNTIME
		1441	if $self->{instantiate_time} > $cf::RUNTIME;
		1442	}
		1443
		1444	sub prepare_orig {
		1445	my ($self) = @_;
		1446
		1447	$self->{load_original} = 1;
		1448	$self->{instantiate_time} = $cf::RUNTIME;
		1449	$self->last_access ($cf::RUNTIME);
		1450	$self->instantiate;
		1451	}
		1452
		1453	sub load_header {
		1454	my ($self) = @_;
		1455
		1456	if ($self->load_header_temp) {
		1457	$self->prepare_temp;
		1458	} else {
		1459	$self->load_header_orig
1158	or return;	1460	or return;
		1461	$self->prepare_orig;
		1462	}
1159		1463
1160	# for better error messages only, will be overwritten	1464	$self->default_region (cf::region::find_by_path $self->{path})
1161	$map->path ($path);	1465	unless $self->default_region;
1162		1466
1163	$map->load_header ($path)	1467	1
1164	or return;
1165
1166	$map->{load_path} = $path;
1167
1168	$map
1169	}	1468	}
1170		1469
1171	sub find;	1470	sub find;
1172	sub find {	1471	sub find {
1173	my ($path, $origin) = @_;	1472	my ($path, $origin) = @_;
1174		1473
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	1474	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		1475
1180	cf::lock_wait "map_find:$key";	1476	cf::lock_wait "map_find:$path";
1181		1477
1182	$cf::MAP{$key} || do {	1478	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	1479	my $guard = cf::lock_acquire "map_find:$path";
1184		1480	my $map = new_from_path cf::map $path
1185	# do it the slow way
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	1481	or return;
1204		1482
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	1483	$map->{last_save} = $cf::RUNTIME;
1217		1484
1218	Coro::cede;	1485	$map->load_header
		1486	or return;
1219		1487
1220	if ($map->should_reset) {	1488	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1489	# doing this can freeze the server in a sync job, obviously
		1490	#$cf::WAIT_FOR_TICK->wait;
1221	$map->reset;	1491	$map->reset;
1222	undef $guard;	1492	undef $guard;
1223	$map = find $path	1493	return find $path;
1224	or return;
1225	}	1494	}
1226		1495
1227	$cf::MAP{$key} = $map	1496	$cf::MAP{$path} = $map
1228	}	1497	}
1229	}	1498	}
		1499
		1500	sub pre_load { }
		1501	sub post_load { }
1230		1502
1231	sub load {	1503	sub load {
1232	my ($self) = @_;	1504	my ($self) = @_;
1233		1505
		1506	local $self->{deny_reset} = 1; # loading can take a long time
		1507
1234	my $path = $self->{path};	1508	my $path = $self->{path};
		1509
		1510	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1511	my $guard = cf::lock_acquire "map_load:$path";
1236		1512
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1513	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1514
1239	$self->in_memory (cf::MAP_LOADING);	1515	$self->in_memory (cf::MAP_LOADING);
1240		1516
1241	$self->alloc;	1517	$self->alloc;
		1518
		1519	$self->pre_load;
		1520	Coro::cede;
		1521
1242	$self->load_objects ($self->{load_path}, 1)	1522	$self->_load_objects ($self->{load_path}, 1)
1243	or return;	1523	or return;
1244		1524
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1525	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1526	if delete $self->{load_original};
1247		1527
1248	if (my $uniq = $path->uniq_path) {	1528	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1529	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1530	if (aio_open $uniq, O_RDONLY, 0) {
1251	$self->clear_unique_items;	1531	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1532	$self->_load_objects ($uniq, 0);
1253	}	1533	}
1254	}	1534	}
1255		1535
1256	Coro::cede;	1536	Coro::cede;
1257
1258	# now do the right thing for maps	1537	# now do the right thing for maps
1259	$self->link_multipart_objects;	1538	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1539	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1540	unless $self->difficulty;
		1541	Coro::cede;
		1542
		1543	unless ($self->{deny_activate}) {
		1544	$self->decay_objects;
		1545	$self->fix_auto_apply;
		1546	$self->update_buttons;
		1547	Coro::cede;
		1548	$self->set_darkness_map;
		1549	Coro::cede;
1271	$self->activate;	1550	$self->activate;
1272	}	1551	}
1273		1552
1274	Coro::cede;
1275
1276	$self->in_memory (cf::MAP_IN_MEMORY);	1553	$self->in_memory (cf::MAP_IN_MEMORY);
		1554	}
		1555
		1556	$self->post_load;
		1557	}
		1558
		1559	sub customise_for {
		1560	my ($self, $ob) = @_;
		1561
		1562	return find "~" . $ob->name . "/" . $self->{path}
		1563	if $self->per_player;
		1564
		1565	$self
		1566	}
		1567
		1568	# find and load all maps in the 3x3 area around a map
		1569	sub load_diag {
		1570	my ($map) = @_;
		1571
		1572	my @diag; # diagonal neighbours
		1573
		1574	for (0 .. 3) {
		1575	my $neigh = $map->tile_path ($_)
		1576	or next;
		1577	$neigh = find $neigh, $map
		1578	or next;
		1579	$neigh->load;
		1580
		1581	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1582	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1583	}
		1584
		1585	for (@diag) {
		1586	my $neigh = find @$_
		1587	or next;
		1588	$neigh->load;
		1589	}
1277	}	1590	}
1278		1591
1279	sub find_sync {	1592	sub find_sync {
1280	my ($path, $origin) = @_;	1593	my ($path, $origin) = @_;
1281		1594
1282	cf::sync_job { cf::map::find $path, $origin }	1595	cf::sync_job { find $path, $origin }
1283	}	1596	}
1284		1597
1285	sub do_load_sync {	1598	sub do_load_sync {
1286	my ($map) = @_;	1599	my ($map) = @_;
1287		1600
1288	cf::sync_job { $map->load };	1601	cf::sync_job { $map->load };
1289	}	1602	}
1290		1603
		1604	our %MAP_PREFETCH;
		1605	our $MAP_PREFETCHER = undef;
		1606
		1607	sub find_async {
		1608	my ($path, $origin) = @_;
		1609
		1610	$path = normalise $path, $origin && $origin->{path};
		1611
		1612	if (my $map = $cf::MAP{$path}) {
		1613	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1614	}
		1615
		1616	undef $MAP_PREFETCH{$path};
		1617	$MAP_PREFETCHER ||= cf::async {
		1618	while (%MAP_PREFETCH) {
		1619	for my $path (keys %MAP_PREFETCH) {
		1620	my $map = find $path
		1621	or next;
		1622	$map->load;
		1623
		1624	delete $MAP_PREFETCH{$path};
		1625	}
		1626	}
		1627	undef $MAP_PREFETCHER;
		1628	};
		1629	$MAP_PREFETCHER->prio (6);
		1630
		1631	()
		1632	}
		1633
1291	sub save {	1634	sub save {
1292	my ($self) = @_;	1635	my ($self) = @_;
1293		1636
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	1637	my $lock = cf::lock_acquire "map_data:" . $self->path;
1295		1638
1296	$self->{last_save} = $cf::RUNTIME;	1639	$self->{last_save} = $cf::RUNTIME;
1297		1640
1298	return unless $self->dirty;	1641	return unless $self->dirty;
1299		1642
1300	my $save = $self->{path}->save_path; utf8::encode $save;	1643	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1644	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		1645
1303	$self->{load_path} = $save;	1646	$self->{load_path} = $save;
1304		1647
1305	return if $self->{deny_save};	1648	return if $self->{deny_save};
1306		1649
1307	local $self->{last_access} = $self->last_access;#d#	1650	local $self->{last_access} = $self->last_access;#d#
1308		1651
		1652	cf::async {
		1653	$_->contr->save for $self->players;
		1654	};
		1655
1309	if ($uniq) {	1656	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1657	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	1658	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	1659	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1660	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	1661	}
1315	}	1662	}
1316		1663
1317	sub swap_out {	1664	sub swap_out {
1318	my ($self) = @_;	1665	my ($self) = @_;
…		…
1332		1679
1333	sub reset_at {	1680	sub reset_at {
1334	my ($self) = @_;	1681	my ($self) = @_;
1335		1682
1336	# TODO: safety, remove and allow resettable per-player maps	1683	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};	1684	return 1e99 if $self->isa ("ext::map_per_player");#d#
1338	return 1e99 if $self->{deny_reset};	1685	return 1e99 if $self->{deny_reset};
1339		1686
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1687	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1688	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		1689
…		…
1347	my ($self) = @_;	1694	my ($self) = @_;
1348		1695
1349	$self->reset_at <= $cf::RUNTIME	1696	$self->reset_at <= $cf::RUNTIME
1350	}	1697	}
1351		1698
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	1699	sub reset {
1374	my ($self) = @_;	1700	my ($self) = @_;
1375		1701
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	1702	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		1703
1378	return if $self->players;	1704	return if $self->players;
1379	return if $self->{path}{user_rel};#d#	1705	return if $self->isa ("ext::map_per_player");#d#
1380		1706
1381	warn "resetting map ", $self->path;#d#	1707	warn "resetting map ", $self->path;#d#
1382		1708
		1709	$self->in_memory (cf::MAP_SWAPPED);
		1710
		1711	# need to save uniques path
		1712	unless ($self->{deny_save}) {
		1713	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1714
		1715	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1716	if $uniq;
		1717	}
		1718
1383	delete $cf::MAP{$self->path};	1719	delete $cf::MAP{$self->path};
		1720
		1721	$self->clear;
1384		1722
1385	$_->clear_links_to ($self) for values %cf::MAP;	1723	$_->clear_links_to ($self) for values %cf::MAP;
1386		1724
1387	$self->unlink_save;	1725	$self->unlink_save;
1388	$self->destroy;	1726	$self->destroy;
…		…
1391	my $nuke_counter = "aaaa";	1729	my $nuke_counter = "aaaa";
1392		1730
1393	sub nuke {	1731	sub nuke {
1394	my ($self) = @_;	1732	my ($self) = @_;
1395		1733
		1734	delete $cf::MAP{$self->path};
		1735
		1736	$self->unlink_save;
		1737
		1738	bless $self, "cf::map";
		1739	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	1740	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	1741	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	1742	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1743
		1744	$cf::MAP{$self->path} = $self;
		1745
1399	$self->reset; # polite request, might not happen	1746	$self->reset; # polite request, might not happen
1400	}	1747	}
1401		1748
1402	sub customise_for {	1749	=item cf::map::unique_maps
1403	my ($map, $ob) = @_;
1404		1750
1405	if ($map->per_player) {	1751	Returns an arrayref of paths of all shared maps that have
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1752	instantiated unique items. May block.
1407	}
1408		1753
1409	$map	1754	=cut
1410	}
1411		1755
1412	sub emergency_save {	1756	sub unique_maps() {
1413	my $freeze_guard = cf::freeze_mainloop;	1757	my $files = aio_readdir $UNIQUEDIR
		1758	or return;
1414		1759
1415	warn "enter emergency map save\n";	1760	my @paths;
1416		1761
1417	cf::sync_job {	1762	for (@$files) {
1418	warn "begin emergency map save\n";	1763	utf8::decode $_;
1419	$_->save for values %cf::MAP;	1764	next if /\.pst$/;
		1765	next unless /^$PATH_SEP/o;
		1766
		1767	push @paths, cf::map::normalise $_;
1420	};	1768	}
1421		1769
1422	warn "end emergency map save\n";	1770	\@paths
1423	}	1771	}
1424		1772
1425	package cf;	1773	package cf;
1426		1774
1427	=back	1775	=back
1428		1776
		1777	=head3 cf::object
		1778
		1779	=cut
		1780
		1781	package cf::object;
		1782
		1783	=over 4
		1784
		1785	=item $ob->inv_recursive
		1786
		1787	Returns the inventory of the object _and_ their inventories, recursively.
		1788
		1789	=cut
		1790
		1791	sub inv_recursive_;
		1792	sub inv_recursive_ {
		1793	map { $_, inv_recursive_ $_->inv } @_
		1794	}
		1795
		1796	sub inv_recursive {
		1797	inv_recursive_ inv $_[0]
		1798	}
		1799
		1800	package cf;
		1801
		1802	=back
1429		1803
1430	=head3 cf::object::player	1804	=head3 cf::object::player
1431		1805
1432	=over 4	1806	=over 4
1433		1807
…		…
1473		1847
1474	=item $player_object->enter_link	1848	=item $player_object->enter_link
1475		1849
1476	Freezes the player and moves him/her to a special map (C<{link}>).	1850	Freezes the player and moves him/her to a special map (C<{link}>).
1477		1851
1478	The player should be reaosnably safe there for short amounts of time. You	1852	The player should be reasonably safe there for short amounts of time. You
1479	I<MUST> call C<leave_link> as soon as possible, though.	1853	I<MUST> call C<leave_link> as soon as possible, though.
1480		1854
		1855	Will never block.
		1856
1481	=item $player_object->leave_link ($map, $x, $y)	1857	=item $player_object->leave_link ($map, $x, $y)
1482		1858
1483	Moves the player out of the specila link map onto the given map. If the	1859	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	1860	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	1861	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	1862	fails, to the emergency map position.
1487		1863
1488	Might block.	1864	Might block.
1489		1865
1490	=cut	1866	=cut
		1867
		1868	sub link_map {
		1869	unless ($LINK_MAP) {
		1870	$LINK_MAP = cf::map::find "{link}"
		1871	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1872	$LINK_MAP->load;
		1873	}
		1874
		1875	$LINK_MAP
		1876	}
1491		1877
1492	sub cf::object::player::enter_link {	1878	sub cf::object::player::enter_link {
1493	my ($self) = @_;	1879	my ($self) = @_;
1494		1880
1495	$self->deactivate_recursive;	1881	$self->deactivate_recursive;
1496		1882
1497	return if $self->map == $LINK_MAP;	1883	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		1884
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1885	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	1886	if $self->map;
1501		1887
1502	$self->enter_map ($LINK_MAP, 20, 20);	1888	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	1889	}
1504		1890
1505	sub cf::object::player::leave_link {	1891	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	1892	my ($self, $map, $x, $y) = @_;
1507		1893
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	1911	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	1912	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	1913	if $x <=0 && $y <= 0;
1528		1914
1529	$map->load;	1915	$map->load;
		1916	$map->load_diag;
1530		1917
		1918	return unless $self->contr->active;
1531	$self->activate_recursive;	1919	$self->activate_recursive;
		1920
		1921	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	1922	$self->enter_map ($map, $x, $y);
1533	}	1923	}
1534		1924
1535	cf::player->attach (	1925	cf::player->attach (
1536	on_logout => sub {	1926	on_logout => sub {
…		…
1547	my ($pl) = @_;	1937	my ($pl) = @_;
1548		1938
1549	# try to abort aborted map switching on player login :)	1939	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes	1940	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {	1941	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;	1942	$pl->ob->enter_link;
1554	(async {	1943	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,	1944	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "	1945	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",	1946	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);	1947	cf::NDI_RED);
		1948	# we need this sleep as the login has a concurrent enter_exit running
		1949	# and this sleep increases chances of the player not ending up in scorn
1561	Coro::Timer::sleep 1;	1950	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;	1951	$pl->ob->leave_link;
1563	})->prio (2);	1952	})->prio (2);
1564	}	1953	}
1565	},	1954	},
…		…
1573	my ($self, $path, $x, $y) = @_;	1962	my ($self, $path, $x, $y) = @_;
1574		1963
1575	$self->enter_link;	1964	$self->enter_link;
1576		1965
1577	(async {	1966	(async {
1578	$path = new cf::path $path;	1967	my $map = eval {
1579
1580	my $map = cf::map::find $path->as_string;	1968	my $map = cf::map::find $path;
1581	$map = $map->customise_for ($self) if $map;	1969	$map = $map->customise_for ($self) if $map;
1582		1970	$map
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	1971	} or
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1972	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1587		1973
1588	$self->leave_link ($map, $x, $y);	1974	$self->leave_link ($map, $x, $y);
1589	})->prio (1);	1975	})->prio (1);
1590	}	1976	}
1591		1977
…		…
1595		1981
1596	sub parse_random_map_params {	1982	sub parse_random_map_params {
1597	my ($spec) = @_;	1983	my ($spec) = @_;
1598		1984
1599	my $rmp = { # defaults	1985	my $rmp = { # defaults
1600	xsize => 10,	1986	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	1987	ysize => (cf::rndm 15, 40),
		1988	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		1989	#layout => string,
1602	};	1990	};
1603		1991
1604	for (split /\n/, $spec) {	1992	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	1993	my ($k, $v) = split /\s+/, $_, 2;
1606		1994
…		…
1610	$rmp	1998	$rmp
1611	}	1999	}
1612		2000
1613	sub prepare_random_map {	2001	sub prepare_random_map {
1614	my ($exit) = @_;	2002	my ($exit) = @_;
		2003
		2004	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2005
1616	# all this does is basically replace the /! path by	2006	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2007	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2008	# that depends on the exit object
1619		2009
1620	my $rmp = parse_random_map_params $exit->msg;	2010	my $rmp = parse_random_map_params $exit->msg;
1621		2011
1622	if ($exit->map) {	2012	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2013	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2014	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2015	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2016	$rmp->{origin_y} = $exit->y;
1627	}	2017	}
1628		2018
1629	$rmp->{random_seed} ||= $exit->random_seed;	2019	$rmp->{random_seed} ||= $exit->random_seed;
1630		2020
1631	my $data = cf::to_json $rmp;	2021	my $data = cf::to_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2022	my $md5 = Digest::MD5::md5_hex $data;
		2023	my $meta = "$RANDOMDIR/$md5.meta";
1633		2024
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2025	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	2026	aio_write $fh, 0, (length $data), $data, 0;
		2027	undef $fh;
		2028	aio_rename "$meta~", $meta;
1636		2029
1637	$exit->slaying ("?random/$md5");	2030	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2031	$exit->msg (undef);
1639	}	2032	}
1640	}	2033	}
1641		2034
1642	sub cf::object::player::enter_exit {	2035	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2036	my ($self, $exit) = @_;
1644		2037
1645	return unless $self->type == cf::PLAYER;	2038	return unless $self->type == cf::PLAYER;
		2039
		2040	if ($exit->slaying eq "/!") {
		2041	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2042	# the problem is that $exit might not survive long enough
		2043	# so it needs to be done right now, right here
		2044	cf::sync_job { prepare_random_map $exit };
		2045	}
		2046
		2047	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2048	my $hp = $exit->stats->hp;
		2049	my $sp = $exit->stats->sp;
1646		2050
1647	$self->enter_link;	2051	$self->enter_link;
1648		2052
1649	(async {	2053	(async {
1650	$self->deactivate_recursive; # just to be sure	2054	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2055	unless (eval {
1652	prepare_random_map $exit	2056	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		2057
1658	1;	2058	1;
1659	}) {	2059	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2060	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2061	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2062	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2063	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2064
1665	warn "ERROR in enter_exit: $@";	2065	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2066	$self->leave_link;
1667	}	2067	}
1668	})->prio (1);	2068	})->prio (1);
…		…
1681		2081
1682	sub cf::client::send_drawinfo {	2082	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2083	my ($self, $text, $flags) = @_;
1684		2084
1685	utf8::encode $text;	2085	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2086	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2087	}
1688		2088
		2089	=item $client->ext_event ($type, %msg)
		2090
		2091	Sends an exti event to the client.
		2092
		2093	=cut
		2094
		2095	sub cf::client::ext_event($$%) {
		2096	my ($self, $type, %msg) = @_;
		2097
		2098	$msg{msgtype} = "event_$type";
		2099	$self->send_packet ("ext " . cf::to_json \%msg);
		2100	}
1689		2101
1690	=item $success = $client->query ($flags, "text", \&cb)	2102	=item $success = $client->query ($flags, "text", \&cb)
1691		2103
1692	Queues a query to the client, calling the given callback with	2104	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2105	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1722	# get handled first	2134	# get handled first
1723	my $queue = delete $ns->{query_queue}	2135	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2136	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2137
1726	(shift @$queue)->[1]->($msg);	2138	(shift @$queue)->[1]->($msg);
		2139	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2140
1728	push @{ $ns->{query_queue} }, @$queue;	2141	push @{ $ns->{query_queue} }, @$queue;
1729		2142
1730	if (@{ $ns->{query_queue} } == @$queue) {	2143	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2144	if (@$queue) {
…		…
1789		2202
1790	# here we export the classes and methods available to script code	2203	# here we export the classes and methods available to script code
1791		2204
1792	=pod	2205	=pod
1793		2206
1794	The following fucntions and emthods are available within a safe environment:	2207	The following functions and methods are available within a safe environment:
1795		2208
1796	cf::object contr pay_amount pay_player map	2209	cf::object contr pay_amount pay_player map
1797	cf::object::player player	2210	cf::object::player player
1798	cf::player peaceful	2211	cf::player peaceful
1799	cf::map trigger	2212	cf::map trigger
…		…
1884	#############################################################################	2297	#############################################################################
1885		2298
1886	=head2 EXTENSION DATABASE SUPPORT	2299	=head2 EXTENSION DATABASE SUPPORT
1887		2300
1888	Crossfire maintains a very simple database for extension use. It can	2301	Crossfire maintains a very simple database for extension use. It can
1889	currently store anything that can be serialised using Storable, which	2302	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1890	excludes objects.	2303	convert to/from binary).
1891		2304
1892	The parameter C<$family> should best start with the name of the extension	2305	The parameter C<$family> should best start with the name of the extension
1893	using it, it should be unique.	2306	using it, it should be unique.
1894		2307
1895	=over 4	2308	=over 4
1896		2309
1897	=item $hashref = cf::db_get $family
1898
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key	2310	=item $value = cf::db_get $family => $key
1904		2311
1905	Returns a single value from the database	2312	Returns a single value from the database.
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911		2313
1912	=item cf::db_put $family => $key => $value	2314	=item cf::db_put $family => $key => $value
1913		2315
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you	2316	Stores the given C<$value> in the family.
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924		2317
1925	=cut	2318	=cut
1926		2319
1927	our $DB;	2320	our $DB;
1928		2321
1929	{	2322	sub db_init {
1930	my $path = cf::localdir . "/database.pst";	2323	unless ($DB) {
		2324	$DB = BDB::db_create $DB_ENV;
1931		2325
1932	sub db_load() {	2326	cf::sync_job {
1933	$DB = stat $path ? Storable::retrieve $path : { };	2327	eval {
1934	}	2328	$DB->set_flags (BDB::CHKSUM);
1935		2329
1936	my $pid;	2330	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
1937		2331	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
1938	sub db_save() {	2332	cf::cleanup "db_open(db): $!" if $!;
1939	waitpid $pid, 0 if $pid;	2333	};
1940	if (0 == ($pid = fork)) {	2334	cf::cleanup "db_open(db): $@" if $@;
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}	2335	};
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});	2336	}
		2337	}
1958		2338
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {	2339	sub db_get($$) {
1965	@_ >= 2	2340	my $key = "$_[0]/$_[1]";
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969		2341
		2342	cf::sync_job {
		2343	BDB::db_get $DB, undef, $key, my $data;
		2344
		2345	$! ? ()
		2346	: $data
		2347	}
		2348	}
		2349
1970	sub db_put($$;$) {	2350	sub db_put($$$) {
1971	if (@_ >= 3) {	2351	BDB::dbreq_pri 4;
1972	$DB->{$_[0]}{$_[1]} = $_[2];	2352	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
1973	} else {	2353	}
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978		2354
1979	cf::global->attach (	2355	=item cf::cache $id => [$paths...], $processversion => $process
1980	prio => 10000,	2356
1981	on_cleanup => sub {	2357	Generic caching function that returns the value of the resource $id,
1982	db_sync;	2358	caching and regenerating as required.
		2359
		2360	This function can block.
		2361
		2362	=cut
		2363
		2364	sub cache {
		2365	my ($id, $src, $processversion, $process) = @_;
		2366
		2367	my $meta =
		2368	join "\x00",
		2369	$processversion,
		2370	map {
		2371	aio_stat $_
		2372	and Carp::croak "$_: $!";
		2373
		2374	($_, (stat _)[7,9])
		2375	} @$src;
		2376
		2377	my $dbmeta = db_get cache => "$id/meta";
		2378	if ($dbmeta ne $meta) {
		2379	# changed, we may need to process
		2380
		2381	my @data;
		2382	my $md5;
		2383
		2384	for (0 .. $#$src) {
		2385	0 <= aio_load $src->[$_], $data[$_]
		2386	or Carp::croak "$src->[$_]: $!";
1983	},	2387	}
1984	);	2388
		2389	# if processing is expensive, check
		2390	# checksum first
		2391	if (1) {
		2392	$md5 =
		2393	join "\x00",
		2394	$processversion,
		2395	map {
		2396	Coro::cede;
		2397	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2398	} 0.. $#$src;
		2399
		2400
		2401	my $dbmd5 = db_get cache => "$id/md5";
		2402	if ($dbmd5 eq $md5) {
		2403	db_put cache => "$id/meta", $meta;
		2404
		2405	return db_get cache => "$id/data";
		2406	}
		2407	}
		2408
		2409	my $t1 = Time::HiRes::time;
		2410	my $data = $process->(\@data);
		2411	my $t2 = Time::HiRes::time;
		2412
		2413	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2414
		2415	db_put cache => "$id/data", $data;
		2416	db_put cache => "$id/md5" , $md5;
		2417	db_put cache => "$id/meta", $meta;
		2418
		2419	return $data;
		2420	}
		2421
		2422	db_get cache => "$id/data"
1985	}	2423	}
		2424
		2425	=item fork_call { }, $args
		2426
		2427	Executes the given code block with the given arguments in a seperate
		2428	process, returning the results. Everything must be serialisable with
		2429	Coro::Storable. May, of course, block. Note that the executed sub may
		2430	never block itself or use any form of Event handling.
		2431
		2432	=cut
		2433
		2434	sub fork_call(&@) {
		2435	my ($cb, @args) = @_;
		2436
		2437	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2438	# or die "socketpair: $!";
		2439	pipe my $fh1, my $fh2
		2440	or die "pipe: $!";
		2441
		2442	if (my $pid = fork) {
		2443	close $fh2;
		2444
		2445	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2446	$res = Coro::Storable::thaw $res;
		2447
		2448	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2449
		2450	die $$res unless "ARRAY" eq ref $res;
		2451
		2452	return wantarray ? @$res : $res->[-1];
		2453	} else {
		2454	reset_signals;
		2455	local $SIG{__WARN__};
		2456	local $SIG{__DIE__};
		2457	eval {
		2458	close $fh1;
		2459
		2460	my @res = eval { $cb->(@args) };
		2461	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2462	};
		2463
		2464	warn $@ if $@;
		2465	_exit 0;
		2466	}
		2467	}
		2468
		2469
1986		2470
1987	#############################################################################	2471	#############################################################################
1988	# the server's main()	2472	# the server's init and main functions
		2473
		2474	sub load_facedata($) {
		2475	my ($path) = @_;
		2476
		2477	warn "loading facedata from $path\n";
		2478
		2479	my $facedata;
		2480	0 < aio_load $path, $facedata
		2481	or die "$path: $!";
		2482
		2483	$facedata = Coro::Storable::thaw $facedata;
		2484
		2485	$facedata->{version} == 2
		2486	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2487
		2488	{
		2489	my $faces = $facedata->{faceinfo};
		2490
		2491	while (my ($face, $info) = each %$faces) {
		2492	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2493	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2494	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2495	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2496	Coro::cede;
		2497	}
		2498
		2499	while (my ($face, $info) = each %$faces) {
		2500	next unless $info->{smooth};
		2501	my $idx = cf::face::find $face
		2502	or next;
		2503	if (my $smooth = cf::face::find $info->{smooth}) {
		2504	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2505	} else {
		2506	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2507	}
		2508	Coro::cede;
		2509	}
		2510	}
		2511
		2512	{
		2513	my $anims = $facedata->{animinfo};
		2514
		2515	while (my ($anim, $info) = each %$anims) {
		2516	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2517	Coro::cede;
		2518	}
		2519
		2520	cf::anim::invalidate_all; # d'oh
		2521	}
		2522
		2523	1
		2524	}
		2525
		2526	sub reload_regions {
		2527	load_resource_file "$MAPDIR/regions"
		2528	or die "unable to load regions file\n";
		2529	}
		2530
		2531	sub reload_facedata {
		2532	load_facedata "$DATADIR/facedata"
		2533	or die "unable to load facedata\n";
		2534	}
		2535
		2536	sub reload_archetypes {
		2537	load_resource_file "$DATADIR/archetypes"
		2538	or die "unable to load archetypes\n";
		2539	}
		2540
		2541	sub reload_treasures {
		2542	load_resource_file "$DATADIR/treasures"
		2543	or die "unable to load treasurelists\n";
		2544	}
		2545
		2546	sub reload_resources {
		2547	warn "reloading resource files...\n";
		2548
		2549	reload_regions;
		2550	reload_facedata;
		2551	reload_archetypes;
		2552	reload_treasures;
		2553
		2554	warn "finished reloading resource files\n";
		2555	}
		2556
		2557	sub init {
		2558	reload_resources;
		2559	}
1989		2560
1990	sub cfg_load {	2561	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2562	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2563	or return;
1993		2564
1994	local $/;	2565	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2566	*CFG = YAML::Syck::Load <$fh>;
1996		2567
…		…
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2570	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2571	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		2572
2002	if (exists $CFG{mlockall}) {	2573	if (exists $CFG{mlockall}) {
2003	eval {	2574	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	2575	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	2576	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	2577	};
2007	warn $@ if $@;	2578	warn $@ if $@;
2008	}	2579	}
2009	}	2580	}
2010		2581
2011	sub main {	2582	sub main {
2012	# we must not ever block the main coroutine	2583	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	2584	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2585	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2586	(async {
2015	async { Event::one_event };	2587	Event::one_event;
		2588	})->prio (Coro::PRIO_MAX);
2016	};	2589	};
2017		2590
2018	cfg_load;	2591	cfg_load;
2019	db_load;	2592	db_init;
2020	load_extensions;	2593	load_extensions;
		2594
		2595	$TICK_WATCHER->start;
2021	Event::loop;	2596	Event::loop;
2022	}	2597	}
2023		2598
2024	#############################################################################	2599	#############################################################################
2025	# initialisation	2600	# initialisation and cleanup
2026		2601
		2602	# install some emergency cleanup handlers
		2603	BEGIN {
		2604	for my $signal (qw(INT HUP TERM)) {
		2605	Event->signal (
		2606	reentrant => 0,
		2607	data => WF_AUTOCANCEL,
		2608	signal => $signal,
		2609	prio => 0,
		2610	cb => sub {
		2611	cf::cleanup "SIG$signal";
		2612	},
		2613	);
		2614	}
		2615	}
		2616
		2617	sub emergency_save() {
		2618	my $freeze_guard = cf::freeze_mainloop;
		2619
		2620	warn "enter emergency perl save\n";
		2621
		2622	cf::sync_job {
		2623	# use a peculiar iteration method to avoid tripping on perl
		2624	# refcount bugs in for. also avoids problems with players
		2625	# and maps saved/destroyed asynchronously.
		2626	warn "begin emergency player save\n";
		2627	for my $login (keys %cf::PLAYER) {
		2628	my $pl = $cf::PLAYER{$login} or next;
		2629	$pl->valid or next;
		2630	$pl->save;
		2631	}
		2632	warn "end emergency player save\n";
		2633
		2634	warn "begin emergency map save\n";
		2635	for my $path (keys %cf::MAP) {
		2636	my $map = $cf::MAP{$path} or next;
		2637	$map->valid or next;
		2638	$map->save;
		2639	}
		2640	warn "end emergency map save\n";
		2641
		2642	warn "begin emergency database checkpoint\n";
		2643	BDB::db_env_txn_checkpoint $DB_ENV;
		2644	warn "end emergency database checkpoint\n";
		2645	};
		2646
		2647	warn "leave emergency perl save\n";
		2648	}
		2649
		2650	sub post_cleanup {
		2651	my ($make_core) = @_;
		2652
		2653	warn Carp::longmess "post_cleanup backtrace"
		2654	if $make_core;
		2655	}
		2656
2027	sub reload() {	2657	sub do_reload_perl() {
2028	# can/must only be called in main	2658	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	2659	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	2660	warn "can only reload from main coroutine";
2031	return;	2661	return;
2032	}	2662	}
2033		2663
2034	warn "reloading...";	2664	warn "reloading...";
2035		2665
2036	my $guard = freeze_mainloop;	2666	warn "entering sync_job";
		2667
		2668	cf::sync_job {
		2669	cf::write_runtime; # external watchdog should not bark
2037	cf::emergency_save;	2670	cf::emergency_save;
		2671	cf::write_runtime; # external watchdog should not bark
2038		2672
2039	eval {	2673	warn "syncing database to disk";
		2674	BDB::db_env_txn_checkpoint $DB_ENV;
		2675
2040	# if anything goes wrong in here, we should simply crash as we already saved	2676	# if anything goes wrong in here, we should simply crash as we already saved
2041		2677
2042	# cancel all watchers	2678	warn "cancelling all WF_AUTOCANCEL watchers";
2043	for (Event::all_watchers) {	2679	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	2680	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}	2681	}
2046		2682
		2683	warn "flushing outstanding aio requests";
		2684	for (;;) {
		2685	BDB::flush;
		2686	IO::AIO::flush;
		2687	Coro::cede;
		2688	last unless IO::AIO::nreqs || BDB::nreqs;
		2689	warn "iterate...";
		2690	}
		2691
		2692	++$RELOAD;
		2693
2047	# cancel all extension coros	2694	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	2695	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	2696	%EXT_CORO = ();
2050		2697
2051	# unload all extensions	2698	warn "removing commands";
2052	for (@exts) {	2699	%COMMAND = ();
		2700
		2701	warn "removing ext commands";
		2702	%EXTCMD = ();
		2703
		2704	warn "unloading/nuking all extensions";
		2705	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	2706	warn "... unloading $pkg";
2054	unload_extension $_;	2707
		2708	if (my $cb = $pkg->can ("unload")) {
		2709	eval {
		2710	$cb->($pkg);
		2711	1
		2712	} or warn "$pkg unloaded, but with errors: $@";
2055	}	2713	}
2056		2714
		2715	warn "... nuking $pkg";
		2716	Symbol::delete_package $pkg;
		2717	}
		2718
2057	# unload all modules loaded from $LIBDIR	2719	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	2720	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2721	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		2722
2061	warn "removing <$k>";	2723	warn "... unloading $k";
2062	delete $INC{$k};	2724	delete $INC{$k};
2063		2725
2064	$k =~ s/\.pm$//;	2726	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	2727	$k =~ s/\//::/g;
2066		2728
…		…
2069	}	2731	}
2070		2732
2071	Symbol::delete_package $k;	2733	Symbol::delete_package $k;
2072	}	2734	}
2073		2735
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	2736	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	2737	Symbol::delete_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2738	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		2739
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	2740	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	2741	delete $INC{"cf.pm"};
		2742	delete $INC{"cf/pod.pm"};
2087		2743
2088	# don't, removes xs symbols, too,	2744	# don't, removes xs symbols, too,
2089	# and global variables created in xs	2745	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	2746	#Symbol::delete_package __PACKAGE__;
2091		2747
2092	# reload cf.pm	2748	warn "unload completed, starting to reload now";
		2749
2093	warn "reloading cf.pm";	2750	warn "reloading cf.pm";
2094	require cf;	2751	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2752	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		2753
2097	# load config and database again	2754	warn "loading config and database again";
2098	cf::cfg_load;	2755	cf::cfg_load;
2099	cf::db_load;
2100		2756
2101	# load extensions
2102	warn "load extensions";	2757	warn "loading extensions";
2103	cf::load_extensions;	2758	cf::load_extensions;
2104		2759
2105	# reattach attachments to objects	2760	warn "reattaching attachments to objects/players";
2106	warn "reattach";	2761	_global_reattach; # objects, sockets
2107	_global_reattach;	2762	warn "reattaching attachments to maps";
2108	};	2763	reattach $_ for values %MAP;
		2764	warn "reattaching attachments to players";
		2765	reattach $_ for values %PLAYER;
2109		2766
2110	if ($@) {	2767	warn "leaving sync_job";
		2768
		2769	1
		2770	} or do {
2111	warn $@;	2771	warn $@;
2112	warn "error while reloading, exiting.";	2772	warn "error while reloading, exiting.";
2113	exit 1;	2773	exit 1;
2114	}	2774	};
2115		2775
2116	warn "reloaded successfully";	2776	warn "reloaded";
2117	};	2777	};
2118		2778
2119	#############################################################################	2779	our $RELOAD_WATCHER; # used only during reload
2120		2780
2121	unless ($LINK_MAP) {	2781	sub reload_perl() {
2122	$LINK_MAP = cf::map::new;	2782	# doing reload synchronously and two reloads happen back-to-back,
		2783	# coro crashes during coro_state_free->destroy here.
2123		2784
2124	$LINK_MAP->width (41);	2785	$RELOAD_WATCHER ||= Event->timer (
2125	$LINK_MAP->height (41);	2786	reentrant => 0,
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 2,	2787	after => 0,
		2788	data => WF_AUTOCANCEL,
2134	cb => sub {	2789	cb => sub {
2135	$_[0]->w->cancel;	2790	do_reload_perl;
2136		2791	undef $RELOAD_WATCHER;
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});	2792	},
2155		2793	);
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	2794	}
2161
2162	register "<global>", __PACKAGE__;
2163		2795
2164	register_command "reload" => sub {	2796	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	2797	my ($who, $arg) = @_;
2166		2798
2167	if ($who->flag (FLAG_WIZ)) {	2799	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	2800	$who->message ("reloading server.");
		2801	async { reload_perl };
2171	}	2802	}
2172	};	2803	};
2173		2804
2174	unshift @INC, $LIBDIR;	2805	unshift @INC, $LIBDIR;
		2806
		2807	my $bug_warning = 0;
		2808
		2809	our @WAIT_FOR_TICK;
		2810	our @WAIT_FOR_TICK_BEGIN;
		2811
		2812	sub wait_for_tick {
		2813	return unless $TICK_WATCHER->is_active;
		2814	return if $Coro::current == $Coro::main;
		2815
		2816	my $signal = new Coro::Signal;
		2817	push @WAIT_FOR_TICK, $signal;
		2818	$signal->wait;
		2819	}
		2820
		2821	sub wait_for_tick_begin {
		2822	return unless $TICK_WATCHER->is_active;
		2823	return if $Coro::current == $Coro::main;
		2824
		2825	my $signal = new Coro::Signal;
		2826	push @WAIT_FOR_TICK_BEGIN, $signal;
		2827	$signal->wait;
		2828	}
2175		2829
2176	$TICK_WATCHER = Event->timer (	2830	$TICK_WATCHER = Event->timer (
2177	reentrant => 0,	2831	reentrant => 0,
		2832	parked => 1,
2178	prio => 0,	2833	prio => 0,
2179	at => $NEXT_TICK || $TICK,	2834	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,	2835	data => WF_AUTOCANCEL,
2181	cb => sub {	2836	cb => sub {
		2837	if ($Coro::current != $Coro::main) {
		2838	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2839	unless ++$bug_warning > 10;
		2840	return;
		2841	}
		2842
		2843	$NOW = Event::time;
		2844
2182	cf::server_tick; # one server iteration	2845	cf::server_tick; # one server iteration
		2846
2183	$RUNTIME += $TICK;	2847	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;	2848	$NEXT_TICK += $TICK;
2185		2849
		2850	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2851	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2852	Coro::async_pool {
		2853	write_runtime
		2854	or warn "ERROR: unable to write runtime file: $!";
		2855	};
		2856	}
		2857
		2858	# my $AFTER = Event::time;
		2859	# warn $AFTER - $NOW;#d#
		2860
2186	# if we are delayed by four ticks or more, skip them all	2861	# if we are delayed by four ticks or more, skip them all
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2862	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2188		2863
2189	$TICK_WATCHER->at ($NEXT_TICK);	2864	$TICK_WATCHER->at ($NEXT_TICK);
2190	$TICK_WATCHER->start;	2865	$TICK_WATCHER->start;
		2866
		2867	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2868	$sig->send;
		2869	}
		2870	while (my $sig = shift @WAIT_FOR_TICK) {
		2871	$sig->send;
		2872	}
		2873
		2874	_post_tick;
2191	},	2875	},
2192	);	2876	);
2193		2877
		2878	{
2194	IO::AIO::max_poll_time $TICK * 0.2;	2879	BDB::max_poll_time $TICK * 0.1;
2195		2880	$BDB_POLL_WATCHER = Event->io (
2196	Event->io (	2881	reentrant => 0,
2197	fd => IO::AIO::poll_fileno,	2882	fd => BDB::poll_fileno,
2198	poll => 'r',	2883	poll => 'r',
2199	prio => 5,	2884	prio => 0,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,	2885	data => WF_AUTOCANCEL,
2206	after => 0,	2886	cb => \&BDB::poll_cb,
2207	interval => 10,	2887	);
2208	cb => sub {	2888	BDB::min_parallel 8;
2209	(Coro::unblock_sub {	2889
2210	write_runtime	2890	BDB::set_sync_prepare {
2211	or warn "ERROR: unable to write runtime file: $!";	2891	my $status;
		2892	my $current = $Coro::current;
		2893	(
		2894	sub {
		2895	$status = $!;
		2896	$current->ready; undef $current;
		2897	},
		2898	sub {
		2899	Coro::schedule while defined $current;
		2900	$! = $status;
		2901	},
		2902	)
		2903	};
		2904
		2905	unless ($DB_ENV) {
		2906	$DB_ENV = BDB::db_env_create;
		2907
		2908	cf::sync_job {
		2909	eval {
		2910	BDB::db_env_open
		2911	$DB_ENV,
		2912	$BDBDIR,
		2913	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2914	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2915	0666;
		2916
		2917	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2918
		2919	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2920	$DB_ENV->set_lk_detect;
		2921	};
		2922
		2923	cf::cleanup "db_env_open(db): $@" if $@;
2212	})->();	2924	};
2213	},	2925	}
2214	);	2926	}
		2927
		2928	{
		2929	IO::AIO::min_parallel 8;
		2930
		2931	undef $Coro::AIO::WATCHER;
		2932	IO::AIO::max_poll_time $TICK * 0.1;
		2933	$AIO_POLL_WATCHER = Event->io (
		2934	reentrant => 0,
		2935	data => WF_AUTOCANCEL,
		2936	fd => IO::AIO::poll_fileno,
		2937	poll => 'r',
		2938	prio => 6,
		2939	cb => \&IO::AIO::poll_cb,
		2940	);
		2941	}
		2942
		2943	my $_log_backtrace;
		2944
		2945	sub _log_backtrace {
		2946	my ($msg, @addr) = @_;
		2947
		2948	$msg =~ s/\n//;
		2949
		2950	# limit the # of concurrent backtraces
		2951	if ($_log_backtrace < 2) {
		2952	++$_log_backtrace;
		2953	async {
		2954	my @bt = fork_call {
		2955	@addr = map { sprintf "%x", $_ } @addr;
		2956	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2957	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2958	or die "addr2line: $!";
		2959
		2960	my @funcs;
		2961	my @res = <$fh>;
		2962	chomp for @res;
		2963	while (@res) {
		2964	my ($func, $line) = splice @res, 0, 2, ();
		2965	push @funcs, "[$func] $line";
		2966	}
		2967
		2968	@funcs
		2969	};
		2970
		2971	LOG llevInfo, "[ABT] $msg\n";
		2972	LOG llevInfo, "[ABT] $_\n" for @bt;
		2973	--$_log_backtrace;
		2974	};
		2975	} else {
		2976	LOG llevInfo, "[ABT] $msg\n";
		2977	LOG llevInfo, "[ABT] [suppressed]\n";
		2978	}
		2979	}
		2980
		2981	# load additional modules
		2982	use cf::pod;
2215		2983
2216	END { cf::emergency_save }	2984	END { cf::emergency_save }
2217		2985
2218	1	2986	1
2219		2987

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