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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.150 by root, Mon Jan 8 19:25:53 2007 UTC vs.
Revision 1.307 by root, Sun Jul 15 22:39:48 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 JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
22	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
23	use YAML::Syck ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
52	our %PLAYER; # all users	91	our %PLAYER; # all users
53	our %MAP; # all maps	92	our %MAP; # all maps
54	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	94
56	our %EXT_CORO; # coroutines bound to extensions	95	# used to convert map paths into valid unix filenames by replacing / by ∕
		96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
57		101
58	binmode STDOUT;	102	binmode STDOUT;
59	binmode STDERR;	103	binmode STDERR;
60		104
61	# read virtual server time, if available	105	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
66	}	110	}
67		111
68	mkdir cf::localdir;	112	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		114
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
77		118
78	#############################################################################	119	#############################################################################
79		120
80	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
81		122
…		…
88	=item $cf::RUNTIME	129	=item $cf::RUNTIME
89		130
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	132	every server tick.
92		133
93	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		137
95	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
97		142
98	=item $cf::NOW	143	=item $cf::NOW
99		144
100	The time of the last (current) server tick.	145	The time of the last (current) server tick.
101		146
102	=item $cf::TICK	147	=item $cf::TICK
103		148
104	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
105		160
106	=item %cf::CFG	161	=item %cf::CFG
107		162
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
110		171
111	=back	172	=back
112		173
113	=cut	174	=cut
114		175
115	BEGIN {	176	BEGIN {
116	*CORE::GLOBAL::warn = sub {	177	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	178	my $msg = join "", @_;
118	utf8::encode $msg;
119		179
120	$msg .= "\n"	180	$msg .= "\n"
121	unless $msg =~ /\n$/;	181	unless $msg =~ /\n$/;
122		182
		183	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		184
		185	utf8::encode $msg;
123	LOG llevError, $msg;	186	LOG llevError, $msg;
124	};	187	};
125	}	188	}
126		189
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	190	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	191	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	192	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	193	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	194	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		195	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	196	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		197
134	# we bless all objects into (empty) derived classes to force a method lookup	198	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	199	# within the Safe compartment.
136	for my $pkg (qw(	200	for my $pkg (qw(
137	cf::global cf::attachable	201	cf::global cf::attachable
…		…
146		210
147	$Event::DIED = sub {	211	$Event::DIED = sub {
148	warn "error in event callback: @_";	212	warn "error in event callback: @_";
149	};	213	};
150		214
151	my %ext_pkg;	215	#############################################################################
152	my @exts;
153	my @hook;
154		216
155	=head2 UTILITY FUNCTIONS	217	=head2 UTILITY FUNCTIONS
156		218
157	=over 4	219	=over 4
158		220
159	=cut	221	=item dumpval $ref
160		222
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	223	=cut
		224
		225	sub dumpval {
		226	eval {
		227	local $SIG{__DIE__};
		228	my $d;
		229	if (1) {
		230	$d = new Data::Dumper([$_[0]], ["*var"]);
		231	$d->Terse(1);
		232	$d->Indent(2);
		233	$d->Quotekeys(0);
		234	$d->Useqq(1);
		235	#$d->Bless(...);
		236	$d->Seen($_[1]) if @_ > 1;
		237	$d = $d->Dump();
		238	}
		239	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		240	$d
		241	} || "[unable to dump $_[0]: '$@']";
		242	}
162		243
163	=item $ref = cf::from_json $json	244	=item $ref = cf::from_json $json
164		245
165	Converts a JSON string into the corresponding perl data structure.	246	Converts a JSON string into the corresponding perl data structure.
166		247
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	248	=item $json = cf::to_json $ref
175		249
176	Converts a perl data structure into its JSON representation.	250	Converts a perl data structure into its JSON representation.
177		251
178	=cut	252	=cut
179		253
180	sub to_json($) {	254	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	255
182	JSON::Syck::Dump $_[0]	256	sub to_json ($) { $json_coder->encode ($_[0]) }
183	}	257	sub from_json ($) { $json_coder->decode ($_[0]) }
184		258
185	=item cf::lock_wait $string	259	=item cf::lock_wait $string
186		260
187	Wait until the given lock is available. See cf::lock_acquire.	261	Wait until the given lock is available. See cf::lock_acquire.
188		262
…		…
194	returned.	268	returned.
195		269
196	Lock names should begin with a unique identifier (for example, cf::map::find	270	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	271	uses map_find and cf::map::load uses map_load).
198		272
		273	=item $locked = cf::lock_active $string
		274
		275	Return true if the lock is currently active, i.e. somebody has locked it.
		276
199	=cut	277	=cut
200		278
201	our %LOCK;	279	our %LOCK;
202		280
203	sub lock_wait($) {	281	sub lock_wait($) {
…		…
222	# wake up all waiters, to be on the safe side	300	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	301	$_->ready for @{ delete $LOCK{$key} };
224	}	302	}
225	}	303	}
226		304
		305	sub lock_active($) {
		306	my ($key) = @_;
		307
		308	! ! $LOCK{$key}
		309	}
		310
227	sub freeze_mainloop {	311	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	312	return unless $TICK_WATCHER->is_active;
229		313
230	my $guard = Coro::guard { $TICK_WATCHER->start };	314	my $guard = Coro::guard {
		315	$TICK_WATCHER->start;
		316	};
231	$TICK_WATCHER->stop;	317	$TICK_WATCHER->stop;
232	$guard	318	$guard
233	}	319	}
234		320
235	=item cf::async { BLOCK }	321	=item cf::async { BLOCK }
…		…
242		328
243	BEGIN { *async = \&Coro::async_pool }	329	BEGIN { *async = \&Coro::async_pool }
244		330
245	=item cf::sync_job { BLOCK }	331	=item cf::sync_job { BLOCK }
246		332
247	The design of crossfire+ requires that the main coro ($Coro::main) is	333	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	334	is always able to handle events or runnable, as Crossfire TRT is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	335	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		336	acceptable.
250		337
251	If it must be done, put the blocking parts into C<sync_job>. This will run	338	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	339	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	340	server will be frozen during this time, so the block should either finish
254	fast or be very important.	341	fast or be very important.
…		…
257		344
258	sub sync_job(&) {	345	sub sync_job(&) {
259	my ($job) = @_;	346	my ($job) = @_;
260		347
261	if ($Coro::current == $Coro::main) {	348	if ($Coro::current == $Coro::main) {
		349	my $time = Event::time;
		350
262	# this is the main coro, too bad, we have to block	351	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	352	# till the operation succeeds, freezing the server :/
264		353
265	# TODO: use suspend/resume instead	354	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	355	# (but this is cancel-safe)
…		…
277		366
278	while ($busy) {	367	while ($busy) {
279	Coro::cede or Event::one_event;	368	Coro::cede or Event::one_event;
280	}	369	}
281		370
		371	$time = Event::time - $time;
		372
		373	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		374	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		375
		376	$tick_start += $time; # do not account sync jobs to server load
		377
282	wantarray ? @res : $res[0]	378	wantarray ? @res : $res[0]
283	} else {	379	} else {
284	# we are in another coroutine, how wonderful, everything just works	380	# we are in another coroutine, how wonderful, everything just works
285		381
286	$job->()	382	$job->()
287	}	383	}
288	}	384	}
289		385
290	=item $coro = cf::async_ext { BLOCK }	386	=item $coro = cf::async_ext { BLOCK }
291		387
292	Like async, but this coro is automcatially being canceled when the	388	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	389	extension calling this is being unloaded.
294		390
295	=cut	391	=cut
296		392
297	sub async_ext(&) {	393	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	401	$EXT_CORO{$coro+0} = $coro;
306		402
307	$coro	403	$coro
308	}	404	}
309		405
310	sub write_runtime {	406	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		407
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	408	Executes the given code block with the given arguments in a seperate
314	or return;	409	process, returning the results. Everything must be serialisable with
		410	Coro::Storable. May, of course, block. Note that the executed sub may
		411	never block itself or use any form of Event handling.
315		412
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	413	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		414
320	aio_fsync $fh	415	sub _store_scalar {
321	and return;	416	open my $fh, ">", \my $buf
322		417	or die "fork_call: cannot open fh-to-buf in child : $!";
		418	Storable::store_fd $_[0], $fh;
323	close $fh	419	close $fh;
324	or return;
325		420
326	aio_rename "$runtime~", $runtime	421	$buf
327	and return;	422	}
328		423
		424	sub fork_call(&@) {
		425	my ($cb, @args) = @_;
		426
		427	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		428	# or die "socketpair: $!";
		429	pipe my $fh1, my $fh2
		430	or die "pipe: $!";
		431
		432	if (my $pid = fork) {
		433	close $fh2;
		434
		435	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		436	warn "pst<$res>" unless $res =~ /^pst/;
		437	$res = Coro::Storable::thaw $res;
		438
		439	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		440
		441	Carp::confess $$res unless "ARRAY" eq ref $res;
		442
		443	return wantarray ? @$res : $res->[-1];
		444	} else {
		445	reset_signals;
		446	local $SIG{__WARN__};
		447	local $SIG{__DIE__};
		448	# just in case, this hack effectively disables event
		449	# in the child. cleaner and slower would be canceling all watchers,
		450	# but this works for the time being.
		451	local $Coro::idle;
		452	$Coro::current->prio (Coro::PRIO_MAX);
		453
		454	eval {
		455	close $fh1;
		456
		457	my @res = eval { $cb->(@args) };
		458
		459	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		460	close $fh2;
		461	};
		462
		463	warn $@ if $@;
		464	_exit 0;
329	1	465	}
		466	}
		467
		468	=item $value = cf::db_get $family => $key
		469
		470	Returns a single value from the environment database.
		471
		472	=item cf::db_put $family => $key => $value
		473
		474	Stores the given C<$value> in the family. It can currently store binary
		475	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		476
		477	=cut
		478
		479	our $DB;
		480
		481	sub db_init {
		482	unless ($DB) {
		483	$DB = BDB::db_create $DB_ENV;
		484
		485	cf::sync_job {
		486	eval {
		487	$DB->set_flags (BDB::CHKSUM);
		488
		489	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		490	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		491	cf::cleanup "db_open(db): $!" if $!;
		492	};
		493	cf::cleanup "db_open(db): $@" if $@;
		494	};
		495	}
		496	}
		497
		498	sub db_get($$) {
		499	my $key = "$_[0]/$_[1]";
		500
		501	cf::sync_job {
		502	BDB::db_get $DB, undef, $key, my $data;
		503
		504	$! ? ()
		505	: $data
		506	}
		507	}
		508
		509	sub db_put($$$) {
		510	BDB::dbreq_pri 4;
		511	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		512	}
		513
		514	=item cf::cache $id => [$paths...], $processversion => $process
		515
		516	Generic caching function that returns the value of the resource $id,
		517	caching and regenerating as required.
		518
		519	This function can block.
		520
		521	=cut
		522
		523	sub cache {
		524	my ($id, $src, $processversion, $process) = @_;
		525
		526	my $meta =
		527	join "\x00",
		528	$processversion,
		529	map {
		530	aio_stat $_
		531	and Carp::croak "$_: $!";
		532
		533	($_, (stat _)[7,9])
		534	} @$src;
		535
		536	my $dbmeta = db_get cache => "$id/meta";
		537	if ($dbmeta ne $meta) {
		538	# changed, we may need to process
		539
		540	my @data;
		541	my $md5;
		542
		543	for (0 .. $#$src) {
		544	0 <= aio_load $src->[$_], $data[$_]
		545	or Carp::croak "$src->[$_]: $!";
		546	}
		547
		548	# if processing is expensive, check
		549	# checksum first
		550	if (1) {
		551	$md5 =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	Coro::cede;
		556	($src->[$_], Digest::MD5::md5_hex $data[$_])
		557	} 0.. $#$src;
		558
		559
		560	my $dbmd5 = db_get cache => "$id/md5";
		561	if ($dbmd5 eq $md5) {
		562	db_put cache => "$id/meta", $meta;
		563
		564	return db_get cache => "$id/data";
		565	}
		566	}
		567
		568	my $t1 = Time::HiRes::time;
		569	my $data = $process->(\@data);
		570	my $t2 = Time::HiRes::time;
		571
		572	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		573
		574	db_put cache => "$id/data", $data;
		575	db_put cache => "$id/md5" , $md5;
		576	db_put cache => "$id/meta", $meta;
		577
		578	return $data;
		579	}
		580
		581	db_get cache => "$id/data"
		582	}
		583
		584	=item cf::datalog type => key => value, ...
		585
		586	Log a datalog packet of the given type with the given key-value pairs.
		587
		588	=cut
		589
		590	sub datalog($@) {
		591	my ($type, %kv) = @_;
		592	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	593	}
331		594
332	=back	595	=back
333		596
334	=cut	597	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		598
456	#############################################################################	599	#############################################################################
457		600
458	=head2 ATTACHABLE OBJECTS	601	=head2 ATTACHABLE OBJECTS
459		602
…		…
461	attach callbacks/event handlers (a collection of which is called an "attachment")	604	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	605	to it. All such attachable objects support the following methods.
463		606
464	In the following description, CLASS can be any of C<global>, C<object>	607	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	608	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	609	Crossfire TRT).
467		610
468	=over 4	611	=over 4
469		612
470	=item $attachable->attach ($attachment, key => $value...)	613	=item $attachable->attach ($attachment, key => $value...)
471		614
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	728	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	729	our @CB_MAP = ();
587		730
588	my %attachment;	731	my %attachment;
589		732
		733	sub cf::attachable::thawer_merge {
		734	# simply override everything except _meta
		735	local $_[0]{_meta};
		736	%{$_[0]} = %{$_[1]};
		737	}
		738
590	sub _attach_cb($$$$) {	739	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	740	my ($registry, $event, $prio, $cb) = @_;
592		741
593	use sort 'stable';	742	use sort 'stable';
594		743
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	777	$registry = $CB_TYPE[$object_type] ||= [];
629		778
630	} elsif ($type eq "subtype") {	779	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	780	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	781	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	782	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		783
635	} elsif ($type eq "package") {	784	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	785	my $pkg = shift @arg;
637		786
638	while (my ($name, $id) = each %cb_id) {	787	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	816	_attach $registry, $klass, @attach;
668	}	817	}
669		818
670	$obj->{$name} = \%arg;	819	$obj->{$name} = \%arg;
671	} else {	820	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	821	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	822	}
674		823
675	$obj->{_attachment}{$name} = undef;	824	$obj->{_attachment}{$name} = undef;
676	}	825	}
677		826
…		…
679	if (ref $_[0]) {	828	if (ref $_[0]) {
680	_object_attach @_;	829	_object_attach @_;
681	} else {	830	} else {
682	_attach shift->_attach_registry, @_;	831	_attach shift->_attach_registry, @_;
683	}	832	}
		833	_recalc_want;
684	};	834	};
685		835
686	# all those should be optimised	836	# all those should be optimised
687	sub cf::attachable::detach {	837	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	838	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	841	delete $obj->{_attachment}{$name};
692	reattach ($obj);	842	reattach ($obj);
693	} else {	843	} else {
694	Carp::croak "cannot, currently, detach class attachments";	844	Carp::croak "cannot, currently, detach class attachments";
695	}	845	}
		846	_recalc_want;
696	};	847	};
697		848
698	sub cf::attachable::attached {	849	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	850	my ($obj, $name) = @_;
700		851
…		…
765	# object support	916	# object support
766		917
767	sub reattach {	918	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	919	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	920	my ($obj) = @_;
		921
		922	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		923
771	my $registry = $obj->registry;	924	my $registry = $obj->registry;
772		925
773	@$registry = ();	926	@$registry = ();
774		927
…		…
821	$filename, length $$rdata, scalar @$objs;	974	$filename, length $$rdata, scalar @$objs;
822		975
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	976	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	977	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	978	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	979	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	980	close $fh;
828		981
829	if (@$objs) {	982	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	983	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	984	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	985	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	986	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	987	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	988	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	989	aio_rename "$filename.pst~", "$filename.pst";
837	}	990	}
838	} else {	991	} else {
839	aio_unlink "$filename.pst";	992	aio_unlink "$filename.pst";
…		…
871	or return;	1024	or return;
872	$av = eval { (Storable::thaw $av)->{objs} };	1025	$av = eval { (Storable::thaw $av)->{objs} };
873	}	1026	}
874		1027
875	warn sprintf "loading %s (%d)\n",	1028	warn sprintf "loading %s (%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1029	$filename, length $data, scalar @{$av || []};
877	return ($data, $av);	1030	return ($data, $av);
878	}	1031	}
		1032
		1033	=head2 COMMAND CALLBACKS
		1034
		1035	=over 4
		1036
		1037	=cut
879		1038
880	#############################################################################	1039	#############################################################################
881	# command handling &c	1040	# command handling &c
882		1041
883	=item cf::register_command $name => \&callback($ob,$args);	1042	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1055	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1056	}
898		1057
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1058	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1059
901	Register a callbackf ro execution when the client sends an extcmd packet.	1060	Register a callback for execution when the client sends an (synchronous)
		1061	extcmd packet. Ext commands will be processed in the order they are
		1062	received by the server, like other user commands. The first argument is
		1063	the logged-in player. Ext commands can only be processed after a player
		1064	has logged in successfully.
902		1065
903	If the callback returns something, it is sent back as if reply was being	1066	If the callback returns something, it is sent back as if reply was being
904	called.	1067	called.
905		1068
		1069	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1070
		1071	Register a callback for execution when the client sends an (asynchronous)
		1072	exticmd packet. Exti commands are processed by the server as soon as they
		1073	are received, i.e. out of order w.r.t. other commands. The first argument
		1074	is a client socket. Exti commands can be received anytime, even before
		1075	log-in.
		1076
		1077	If the callback returns something, it is sent back as if reply was being
		1078	called.
		1079
906	=cut	1080	=cut
907		1081
908	sub register_extcmd {	1082	sub register_extcmd {
909	my ($name, $cb) = @_;	1083	my ($name, $cb) = @_;
910		1084
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1085	$EXTCMD{$name} = $cb;
		1086	}
		1087
		1088	sub register_exticmd {
		1089	my ($name, $cb) = @_;
		1090
		1091	$EXTICMD{$name} = $cb;
915	}	1092	}
916		1093
917	cf::player->attach (	1094	cf::player->attach (
918	on_command => sub {	1095	on_command => sub {
919	my ($pl, $name, $params) = @_;	1096	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1105	cf::override;
929	},	1106	},
930	on_extcmd => sub {	1107	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1108	my ($pl, $buf) = @_;
932		1109
933	my $msg = eval { from_json $buf };	1110	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1111
935	if (ref $msg) {	1112	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1113	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1114	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	1115	$pl->ext_reply ($msg->{msgid}, %reply);
939	}	1116	}
940	}	1117	}
941	} else {	1118	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1119	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
944		1121
945	cf::override;	1122	cf::override;
946	},	1123	},
947	);	1124	);
948		1125
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	1126	sub load_extensions {
		1127	cf::sync_job {
		1128	my %todo;
		1129
1026	for my $ext (<$LIBDIR/*.ext>) {	1130	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1131	next unless -r $path;
1028	eval {	1132
1029	load_extension $ext;	1133	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1134	my $base = $1;
		1135	my $pkg = $1;
		1136	$pkg =~ s/[^[:word:]]/_/g;
		1137	$pkg = "ext::$pkg";
		1138
		1139	open my $fh, "<:utf8", $path
		1140	or die "$path: $!";
		1141
		1142	my $source = do { local $/; <$fh> };
		1143
		1144	my %ext = (
		1145	path => $path,
		1146	base => $base,
		1147	pkg => $pkg,
		1148	);
		1149
		1150	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1151	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1152
		1153	$ext{source} =
		1154	"package $pkg; use strict; use utf8;\n"
		1155	. "#line 1 \"$path\"\n{\n"
		1156	. $source
		1157	. "\n};\n1";
		1158
		1159	$todo{$base} = \%ext;
		1160	}
		1161
		1162	my %done;
		1163	while (%todo) {
		1164	my $progress;
		1165
		1166	while (my ($k, $v) = each %todo) {
		1167	for (split /,\s*/, $v->{meta}{depends}) {
		1168	goto skip
		1169	unless exists $done{$_};
		1170	}
		1171
		1172	warn "... loading '$k' into '$v->{pkg}'\n";
		1173
		1174	unless (eval $v->{source}) {
		1175	my $msg = $@ ? "$v->{path}: $@\n"
		1176	: "$v->{base}: extension inactive.\n";
		1177
		1178	if (exists $v->{meta}{mandatory}) {
		1179	warn $msg;
		1180	warn "mandatory extension failed to load, exiting.\n";
		1181	exit 1;
		1182	}
		1183
		1184	warn $msg;
		1185	}
		1186
		1187	$done{$k} = delete $todo{$k};
		1188	push @EXTS, $v->{pkg};
		1189	$progress = 1;
1030	1	1190	}
1031	} or warn "$ext not loaded: $@";	1191
		1192	skip:
		1193	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1194	unless $progress;
		1195	}
1032	}	1196	};
1033	}	1197	}
1034		1198
1035	#############################################################################	1199	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1200
1038	*cf::mapsupport::on_clean = sub {	1201	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1202
1073	=head2 CORE EXTENSIONS	1203	=head2 CORE EXTENSIONS
1074		1204
1075	Functions and methods that extend core crossfire objects.	1205	Functions and methods that extend core crossfire objects.
1076		1206
1077	=cut	1207	=cut
1078		1208
1079	package cf::player;	1209	package cf::player;
1080		1210
		1211	use Coro::AIO;
		1212
1081	=head3 cf::player	1213	=head3 cf::player
1082		1214
1083	=over 4	1215	=over 4
1084		1216
1085	=item cf::player::find $login	1217	=item cf::player::find $login
…		…
1087	Returns the given player object, loading it if necessary (might block).	1219	Returns the given player object, loading it if necessary (might block).
1088		1220
1089	=cut	1221	=cut
1090		1222
1091	sub playerdir($) {	1223	sub playerdir($) {
1092	cf::localdir	1224	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1225	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1226	}
1098		1227
1099	sub path($) {	1228	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1229	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1230
1102	(playerdir $login) . "/$login.pl"	1231	(playerdir $login) . "/playerdata"
1103	}	1232	}
1104		1233
1105	sub find_active($) {	1234	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1235	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1236	and $cf::PLAYER{$_[0]}->active
…		…
1110		1239
1111	sub exists($) {	1240	sub exists($) {
1112	my ($login) = @_;	1241	my ($login) = @_;
1113		1242
1114	$cf::PLAYER{$login}	1243	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1244	or cf::sync_job { !aio_stat path $login }
1116	}	1245	}
1117		1246
1118	sub find($) {	1247	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1248	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1249	my $login = $_[0];
1121		1250
1122	my $guard = cf::lock_acquire "user_find:$login";	1251	my $guard = cf::lock_acquire "user_find:$login";
1123		1252
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1253	$cf::PLAYER{$_[0]} || do {
		1254	# rename old playerfiles to new ones
		1255	#TODO: remove when no longer required
		1256	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1257	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1258	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1259	aio_unlink +(playerdir $login) . "/$login.pl";
		1260
		1261	my $pl = load_pl path $login
		1262	or return;
		1263	$cf::PLAYER{$login} = $pl
		1264	}
1125	};	1265	}
1126	}	1266	}
1127		1267
1128	sub save($) {	1268	sub save($) {
1129	my ($pl) = @_;	1269	my ($pl) = @_;
1130		1270
…		…
1133	my $path = path $pl;	1273	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1274	my $guard = cf::lock_acquire "user_save:$path";
1135		1275
1136	return if $pl->{deny_save};	1276	return if $pl->{deny_save};
1137		1277
1138	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1278	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1279	$pl->{last_save} = $cf::RUNTIME;
1140		1280
1141	$pl->save_pl ($path);	1281	$pl->save_pl ($path);
1142	Coro::cede;	1282	Coro::cede;
1143	}	1283	}
…		…
1153	$cf::PLAYER{$login} = $self;	1293	$cf::PLAYER{$login} = $self;
1154		1294
1155	$self	1295	$self
1156	}	1296	}
1157		1297
		1298	=item $pl->quit_character
		1299
		1300	Nukes the player without looking back. If logged in, the connection will
		1301	be destroyed. May block for a long time.
		1302
		1303	=cut
		1304
1158	sub quit_character {	1305	sub quit_character {
1159	my ($pl) = @_;	1306	my ($pl) = @_;
		1307
		1308	my $name = $pl->ob->name;
1160		1309
1161	$pl->{deny_save} = 1;	1310	$pl->{deny_save} = 1;
1162	$pl->password ("*"); # this should lock out the player until we nuked the dir	1311	$pl->password ("*"); # this should lock out the player until we nuked the dir
1163		1312
1164	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1313	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1166	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1315	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1167	$pl->ns->destroy if $pl->ns;	1316	$pl->ns->destroy if $pl->ns;
1168		1317
1169	my $path = playerdir $pl;	1318	my $path = playerdir $pl;
1170	my $temp = "$path~$cf::RUNTIME~deleting~";	1319	my $temp = "$path~$cf::RUNTIME~deleting~";
1171	Coro::AIO::aio_rename $path, $temp;	1320	aio_rename $path, $temp;
1172	delete $cf::PLAYER{$pl->ob->name};	1321	delete $cf::PLAYER{$pl->ob->name};
1173	$pl->destroy;	1322	$pl->destroy;
		1323
		1324	my $prefix = qr<^~\Q$name\E/>;
		1325
		1326	# nuke player maps
		1327	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1328
1174	IO::AIO::aio_rmtree $temp;	1329	IO::AIO::aio_rmtree $temp;
1175	}	1330	}
1176		1331
		1332	=item $pl->kick
		1333
		1334	Kicks a player out of the game. This destroys the connection.
		1335
		1336	=cut
		1337
		1338	sub kick {
		1339	my ($pl, $kicker) = @_;
		1340
		1341	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1342	$pl->killer ("kicked");
		1343	$pl->ns->destroy;
		1344	}
		1345
		1346	=item cf::player::list_logins
		1347
		1348	Returns am arrayref of all valid playernames in the system, can take a
		1349	while and may block, so not sync_job-capable, ever.
		1350
		1351	=cut
		1352
		1353	sub list_logins {
		1354	my $dirs = aio_readdir $PLAYERDIR
		1355	or return [];
		1356
		1357	my @logins;
		1358
		1359	for my $login (@$dirs) {
		1360	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1361	aio_read $fh, 0, 512, my $buf, 0 or next;
		1362	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1363
		1364	utf8::decode $login;
		1365	push @logins, $login;
		1366	}
		1367
		1368	\@logins
		1369	}
		1370
		1371	=item $player->maps
		1372
		1373	Returns an arrayref of map paths that are private for this
		1374	player. May block.
		1375
		1376	=cut
		1377
		1378	sub maps($) {
		1379	my ($pl) = @_;
		1380
		1381	$pl = ref $pl ? $pl->ob->name : $pl;
		1382
		1383	my $files = aio_readdir playerdir $pl
		1384	or return;
		1385
		1386	my @paths;
		1387
		1388	for (@$files) {
		1389	utf8::decode $_;
		1390	next if /\.(?:pl|pst)$/;
		1391	next unless /^$PATH_SEP/o;
		1392
		1393	push @paths, cf::map::normalise "~$pl/$_";
		1394	}
		1395
		1396	\@paths
		1397	}
		1398
		1399	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1400
		1401	Expand crossfire pod fragments into protocol xml.
		1402
		1403	=cut
		1404
		1405	sub expand_cfpod {
		1406	((my $self), (local $_)) = @_;
		1407
		1408	# escape & and <
		1409	s/&/&amp;/g;
		1410	s/(?<![BIUGH])</&lt;/g;
		1411
		1412	# this is buggy, it needs to properly take care of nested <'s
		1413
		1414	1 while
		1415	# replace B<>, I<>, U<> etc.
		1416	s/B<([^\>]*)>/<b>$1<\/b>/
		1417	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1418	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1419	# replace G<male|female> tags
		1420	|| s{G<([^>|]*)\|([^>]*)>}{
		1421	$self->gender ? $2 : $1
		1422	}ge
		1423	# replace H<hint text>
		1424	|| s{H<([^\>]*)>}
		1425	{
		1426	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1427	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1428	"")
		1429	[$self->{hintmode}]
		1430	}ge;
		1431
		1432	# create single paragraphs (very hackish)
		1433	s/(?<=\S)\n(?=\w)/ /g;
		1434
		1435	# compress some whitespace
		1436	s/\s+\n/\n/g; # ws line-ends
		1437	s/\n\n+/\n/g; # double lines
		1438	s/^\n+//; # beginning lines
		1439	s/\n+$//; # ending lines
		1440
		1441	$_
		1442	}
		1443
		1444	sub hintmode {
		1445	$_[0]{hintmode} = $_[1] if @_ > 1;
		1446	$_[0]{hintmode}
		1447	}
		1448
1177	=item $player->ext_reply ($msgid, $msgtype, %msg)	1449	=item $player->ext_reply ($msgid, %msg)
1178		1450
1179	Sends an ext reply to the player.	1451	Sends an ext reply to the player.
1180		1452
1181	=cut	1453	=cut
1182		1454
1183	sub ext_reply($$$%) {	1455	sub ext_reply($$%) {
1184	my ($self, $id, %msg) = @_;	1456	my ($self, $id, %msg) = @_;
1185		1457
1186	$msg{msgid} = $id;	1458	$msg{msgid} = $id;
1187		1459	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1188	$self->send ("ext " . cf::to_json \%msg);
1189	}	1460	}
1190		1461
1191	package cf;	1462	=item $player->ext_event ($type, %msg)
		1463
		1464	Sends an ext event to the client.
		1465
		1466	=cut
		1467
		1468	sub ext_event($$%) {
		1469	my ($self, $type, %msg) = @_;
		1470
		1471	$self->ns->ext_event ($type, %msg);
		1472	}
		1473
		1474	=head3 cf::region
		1475
		1476	=over 4
		1477
		1478	=cut
		1479
		1480	package cf::region;
		1481
		1482	=item cf::region::find_by_path $path
		1483
		1484	Tries to decuce the likely region for a map knowing only its path.
		1485
		1486	=cut
		1487
		1488	sub find_by_path($) {
		1489	my ($path) = @_;
		1490
		1491	my ($match, $specificity);
		1492
		1493	for my $region (list) {
		1494	if ($region->{match} && $path =~ $region->{match}) {
		1495	($match, $specificity) = ($region, $region->specificity)
		1496	if $region->specificity > $specificity;
		1497	}
		1498	}
		1499
		1500	$match
		1501	}
1192		1502
1193	=back	1503	=back
1194
1195		1504
1196	=head3 cf::map	1505	=head3 cf::map
1197		1506
1198	=over 4	1507	=over 4
1199		1508
…		…
1202	package cf::map;	1511	package cf::map;
1203		1512
1204	use Fcntl;	1513	use Fcntl;
1205	use Coro::AIO;	1514	use Coro::AIO;
1206		1515
		1516	use overload
		1517	'""' => \&as_string,
		1518	fallback => 1;
		1519
1207	our $MAX_RESET = 3600;	1520	our $MAX_RESET = 3600;
1208	our $DEFAULT_RESET = 3000;	1521	our $DEFAULT_RESET = 3000;
1209		1522
1210	sub generate_random_map {	1523	sub generate_random_map {
1211	my ($path, $rmp) = @_;	1524	my ($self, $rmp) = @_;
1212
1213	# mit "rum" bekleckern, nicht	1525	# mit "rum" bekleckern, nicht
1214	cf::map::_create_random_map	1526	$self->_create_random_map (
1215	$path,
1216	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1527	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1217	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1528	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1218	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1529	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1219	$rmp->{exit_on_final_map},	1530	$rmp->{exit_on_final_map},
1220	$rmp->{xsize}, $rmp->{ysize},	1531	$rmp->{xsize}, $rmp->{ysize},
1221	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1532	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1222	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1533	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1223	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1534	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1224	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1535	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1225	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1536	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1226	(cf::region::find $rmp->{region})	1537	(cf::region::find $rmp->{region}), $rmp->{custom}
		1538	)
		1539	}
		1540
		1541	=item cf::map->register ($regex, $prio)
		1542
		1543	Register a handler for the map path matching the given regex at the
		1544	givne priority (higher is better, built-in handlers have priority 0, the
		1545	default).
		1546
		1547	=cut
		1548
		1549	sub register {
		1550	my (undef, $regex, $prio) = @_;
		1551	my $pkg = caller;
		1552
		1553	no strict;
		1554	push @{"$pkg\::ISA"}, __PACKAGE__;
		1555
		1556	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1557	}
		1558
		1559	# also paths starting with '/'
		1560	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1561
		1562	sub thawer_merge {
		1563	my ($self, $merge) = @_;
		1564
		1565	# we have to keep some variables in memory intact
		1566	local $self->{path};
		1567	local $self->{load_path};
		1568
		1569	$self->SUPER::thawer_merge ($merge);
		1570	}
		1571
		1572	sub normalise {
		1573	my ($path, $base) = @_;
		1574
		1575	$path = "$path"; # make sure its a string
		1576
		1577	$path =~ s/\.map$//;
		1578
		1579	# map plan:
		1580	#
		1581	# /! non-realised random map exit (special hack!)
		1582	# {... are special paths that are not being touched
		1583	# ?xxx/... are special absolute paths
		1584	# ?random/... random maps
		1585	# /... normal maps
		1586	# ~user/... per-player map of a specific user
		1587
		1588	$path =~ s/$PATH_SEP/\//go;
		1589
		1590	# treat it as relative path if it starts with
		1591	# something that looks reasonable
		1592	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1593	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1594
		1595	$base =~ s{[^/]+/?$}{};
		1596	$path = "$base/$path";
		1597	}
		1598
		1599	for ($path) {
		1600	redo if s{//}{/};
		1601	redo if s{/\.?/}{/};
		1602	redo if s{/[^/]+/\.\./}{/};
		1603	}
		1604
		1605	$path
		1606	}
		1607
		1608	sub new_from_path {
		1609	my (undef, $path, $base) = @_;
		1610
		1611	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1612
		1613	$path = normalise $path, $base;
		1614
		1615	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1616	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1617	my $self = bless cf::map::new, $pkg;
		1618	$self->{path} = $path; $self->path ($path);
		1619	$self->init; # pass $1 etc.
		1620	return $self;
		1621	}
		1622	}
		1623
		1624	Carp::carp "unable to resolve path '$path' (base '$base').";
		1625	()
		1626	}
		1627
		1628	sub init {
		1629	my ($self) = @_;
		1630
		1631	$self
		1632	}
		1633
		1634	sub as_string {
		1635	my ($self) = @_;
		1636
		1637	"$self->{path}"
		1638	}
		1639
		1640	# the displayed name, this is a one way mapping
		1641	sub visible_name {
		1642	&as_string
		1643	}
		1644
		1645	# the original (read-only) location
		1646	sub load_path {
		1647	my ($self) = @_;
		1648
		1649	"$MAPDIR/$self->{path}.map"
		1650	}
		1651
		1652	# the temporary/swap location
		1653	sub save_path {
		1654	my ($self) = @_;
		1655
		1656	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1657	"$TMPDIR/$path.map"
		1658	}
		1659
		1660	# the unique path, undef == no special unique path
		1661	sub uniq_path {
		1662	my ($self) = @_;
		1663
		1664	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1665	"$UNIQUEDIR/$path"
1227	}	1666	}
1228		1667
1229	# and all this just because we cannot iterate over	1668	# and all this just because we cannot iterate over
1230	# all maps in C++...	1669	# all maps in C++...
1231	sub change_all_map_light {	1670	sub change_all_map_light {
…		…
1233		1672
1234	$_->change_map_light ($change)	1673	$_->change_map_light ($change)
1235	for grep $_->outdoor, values %cf::MAP;	1674	for grep $_->outdoor, values %cf::MAP;
1236	}	1675	}
1237		1676
		1677	sub decay_objects {
		1678	my ($self) = @_;
		1679
		1680	return if $self->{deny_reset};
		1681
		1682	$self->do_decay_objects;
		1683	}
		1684
		1685	sub unlink_save {
		1686	my ($self) = @_;
		1687
		1688	utf8::encode (my $save = $self->save_path);
		1689	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1690	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1691	}
		1692
1238	sub try_load_header($) {	1693	sub load_header_from($) {
1239	my ($path) = @_;	1694	my ($self, $path) = @_;
1240		1695
1241	utf8::encode $path;	1696	utf8::encode $path;
1242	aio_open $path, O_RDONLY, 0	1697	#aio_open $path, O_RDONLY, 0
		1698	# or return;
		1699
		1700	$self->_load_header ($path)
1243	or return;	1701	or return;
1244		1702
1245	my $map = cf::map::new	1703	$self->{load_path} = $path;
		1704
		1705	1
		1706	}
		1707
		1708	sub load_header_orig {
		1709	my ($self) = @_;
		1710
		1711	$self->load_header_from ($self->load_path)
		1712	}
		1713
		1714	sub load_header_temp {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->save_path)
		1718	}
		1719
		1720	sub prepare_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->last_access ((delete $self->{last_access})
		1724	|| $cf::RUNTIME); #d#
		1725	# safety
		1726	$self->{instantiate_time} = $cf::RUNTIME
		1727	if $self->{instantiate_time} > $cf::RUNTIME;
		1728	}
		1729
		1730	sub prepare_orig {
		1731	my ($self) = @_;
		1732
		1733	$self->{load_original} = 1;
		1734	$self->{instantiate_time} = $cf::RUNTIME;
		1735	$self->last_access ($cf::RUNTIME);
		1736	$self->instantiate;
		1737	}
		1738
		1739	sub load_header {
		1740	my ($self) = @_;
		1741
		1742	if ($self->load_header_temp) {
		1743	$self->prepare_temp;
		1744	} else {
		1745	$self->load_header_orig
1246	or return;	1746	or return;
		1747	$self->prepare_orig;
		1748	}
1247		1749
1248	# for better error messages only, will be overwritten	1750	$self->{deny_reset} = 1
1249	$map->path ($path);	1751	if $self->no_reset;
1250		1752
1251	$map->load_header ($path)	1753	$self->default_region (cf::region::find_by_path $self->{path})
1252	or return;	1754	unless $self->default_region;
1253		1755
1254	$map->{load_path} = $path;	1756	1
1255
1256	$map
1257	}	1757	}
1258		1758
1259	sub find;	1759	sub find;
1260	sub find {	1760	sub find {
1261	my ($path, $origin) = @_;	1761	my ($path, $origin) = @_;
1262		1762
1263	#warn "find<$path,$origin>\n";#d#
1264
1265	$path = new cf::path $path, $origin && $origin->path;	1763	$path = normalise $path, $origin && $origin->path;
1266	my $key = $path->as_string;
1267		1764
1268	cf::lock_wait "map_find:$key";	1765	cf::lock_wait "map_find:$path";
1269		1766
1270	$cf::MAP{$key} || do {	1767	$cf::MAP{$path} || do {
1271	my $guard = cf::lock_acquire "map_find:$key";	1768	my $guard = cf::lock_acquire "map_find:$path";
1272		1769	my $map = new_from_path cf::map $path
1273	# do it the slow way
1274	my $map = try_load_header $path->save_path;
1275
1276	Coro::cede;
1277
1278	if ($map) {
1279	$map->last_access ((delete $map->{last_access})
1280	|| $cf::RUNTIME); #d#
1281	# safety
1282	$map->{instantiate_time} = $cf::RUNTIME
1283	if $map->{instantiate_time} > $cf::RUNTIME;
1284	} else {
1285	if (my $rmp = $path->random_map_params) {
1286	$map = generate_random_map $key, $rmp;
1287	} else {
1288	$map = try_load_header $path->load_path;
1289	}
1290
1291	$map or return;	1770	or return;
1292		1771
1293	$map->{load_original} = 1;
1294	$map->{instantiate_time} = $cf::RUNTIME;
1295	$map->last_access ($cf::RUNTIME);
1296	$map->instantiate;
1297
1298	# per-player maps become, after loading, normal maps
1299	$map->per_player (0) if $path->{user_rel};
1300	}
1301
1302	$map->path ($key);
1303	$map->{path} = $path;
1304	$map->{last_save} = $cf::RUNTIME;	1772	$map->{last_save} = $cf::RUNTIME;
1305		1773
1306	Coro::cede;	1774	$map->load_header
		1775	or return;
1307		1776
1308	if ($map->should_reset) {	1777	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1778	# doing this can freeze the server in a sync job, obviously
		1779	#$cf::WAIT_FOR_TICK->wait;
1309	$map->reset;	1780	$map->reset;
1310	undef $guard;	1781	undef $guard;
1311	$map = find $path	1782	return find $path;
1312	or return;
1313	}	1783	}
1314		1784
1315	$cf::MAP{$key} = $map	1785	$cf::MAP{$path} = $map
1316	}	1786	}
1317	}	1787	}
		1788
		1789	sub pre_load { }
		1790	sub post_load { }
1318		1791
1319	sub load {	1792	sub load {
1320	my ($self) = @_;	1793	my ($self) = @_;
1321		1794
		1795	local $self->{deny_reset} = 1; # loading can take a long time
		1796
1322	my $path = $self->{path};	1797	my $path = $self->{path};
		1798
		1799	{
1323	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1800	my $guard = cf::lock_acquire "map_load:$path";
1324		1801
1325	return if $self->in_memory != cf::MAP_SWAPPED;	1802	return if $self->in_memory != cf::MAP_SWAPPED;
1326		1803
1327	$self->in_memory (cf::MAP_LOADING);	1804	$self->in_memory (cf::MAP_LOADING);
1328		1805
1329	$self->alloc;	1806	$self->alloc;
		1807
		1808	$self->pre_load;
		1809	Coro::cede;
		1810
1330	$self->load_objects ($self->{load_path}, 1)	1811	$self->_load_objects ($self->{load_path}, 1)
1331	or return;	1812	or return;
1332		1813
1333	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1814	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1334	if delete $self->{load_original};	1815	if delete $self->{load_original};
1335		1816
1336	if (my $uniq = $path->uniq_path) {	1817	if (my $uniq = $self->uniq_path) {
1337	utf8::encode $uniq;	1818	utf8::encode $uniq;
1338	if (aio_open $uniq, O_RDONLY, 0) {	1819	if (aio_open $uniq, O_RDONLY, 0) {
1339	$self->clear_unique_items;	1820	$self->clear_unique_items;
1340	$self->load_objects ($uniq, 0);	1821	$self->_load_objects ($uniq, 0);
1341	}	1822	}
1342	}	1823	}
1343		1824
1344	Coro::cede;	1825	Coro::cede;
1345
1346	# now do the right thing for maps	1826	# now do the right thing for maps
1347	$self->link_multipart_objects;	1827	$self->link_multipart_objects;
1348
1349	if ($self->{path}->is_style_map) {
1350	$self->{deny_save} = 1;
1351	$self->{deny_reset} = 1;
1352	} else {
1353	$self->fix_auto_apply;
1354	$self->decay_objects;
1355	$self->update_buttons;
1356	$self->set_darkness_map;
1357	$self->difficulty ($self->estimate_difficulty)	1828	$self->difficulty ($self->estimate_difficulty)
1358	unless $self->difficulty;	1829	unless $self->difficulty;
		1830	Coro::cede;
		1831
		1832	unless ($self->{deny_activate}) {
		1833	$self->decay_objects;
		1834	$self->fix_auto_apply;
		1835	$self->update_buttons;
		1836	Coro::cede;
		1837	$self->set_darkness_map;
		1838	Coro::cede;
1359	$self->activate;	1839	$self->activate;
1360	}	1840	}
1361		1841
1362	Coro::cede;
1363
1364	$self->in_memory (cf::MAP_IN_MEMORY);	1842	$self->in_memory (cf::MAP_IN_MEMORY);
		1843	}
		1844
		1845	$self->post_load;
		1846	}
		1847
		1848	sub customise_for {
		1849	my ($self, $ob) = @_;
		1850
		1851	return find "~" . $ob->name . "/" . $self->{path}
		1852	if $self->per_player;
		1853
		1854	# return find "?party/" . $ob->name . "/" . $self->{path}
		1855	# if $self->per_party;
		1856
		1857	$self
		1858	}
		1859
		1860	# find and load all maps in the 3x3 area around a map
		1861	sub load_diag {
		1862	my ($map) = @_;
		1863
		1864	my @diag; # diagonal neighbours
		1865
		1866	for (0 .. 3) {
		1867	my $neigh = $map->tile_path ($_)
		1868	or next;
		1869	$neigh = find $neigh, $map
		1870	or next;
		1871	$neigh->load;
		1872
		1873	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1874	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1875	}
		1876
		1877	for (@diag) {
		1878	my $neigh = find @$_
		1879	or next;
		1880	$neigh->load;
		1881	}
1365	}	1882	}
1366		1883
1367	sub find_sync {	1884	sub find_sync {
1368	my ($path, $origin) = @_;	1885	my ($path, $origin) = @_;
1369		1886
1370	cf::sync_job { cf::map::find $path, $origin }	1887	cf::sync_job { find $path, $origin }
1371	}	1888	}
1372		1889
1373	sub do_load_sync {	1890	sub do_load_sync {
1374	my ($map) = @_;	1891	my ($map) = @_;
1375		1892
1376	cf::sync_job { $map->load };	1893	cf::sync_job { $map->load };
1377	}	1894	}
1378		1895
		1896	our %MAP_PREFETCH;
		1897	our $MAP_PREFETCHER = undef;
		1898
		1899	sub find_async {
		1900	my ($path, $origin) = @_;
		1901
		1902	$path = normalise $path, $origin && $origin->{path};
		1903
		1904	if (my $map = $cf::MAP{$path}) {
		1905	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1906	}
		1907
		1908	undef $MAP_PREFETCH{$path};
		1909	$MAP_PREFETCHER ||= cf::async {
		1910	while (%MAP_PREFETCH) {
		1911	for my $path (keys %MAP_PREFETCH) {
		1912	my $map = find $path
		1913	or next;
		1914	$map->load;
		1915
		1916	delete $MAP_PREFETCH{$path};
		1917	}
		1918	}
		1919	undef $MAP_PREFETCHER;
		1920	};
		1921	$MAP_PREFETCHER->prio (6);
		1922
		1923	()
		1924	}
		1925
1379	sub save {	1926	sub save {
1380	my ($self) = @_;	1927	my ($self) = @_;
1381		1928
1382	my $lock = cf::lock_acquire "map_data:" . $self->path;	1929	my $lock = cf::lock_acquire "map_data:" . $self->path;
1383		1930
1384	$self->{last_save} = $cf::RUNTIME;	1931	$self->{last_save} = $cf::RUNTIME;
1385		1932
1386	return unless $self->dirty;	1933	return unless $self->dirty;
1387		1934
1388	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $save = $self->save_path; utf8::encode $save;
1389	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1936	my $uniq = $self->uniq_path; utf8::encode $uniq;
1390		1937
1391	$self->{load_path} = $save;	1938	$self->{load_path} = $save;
1392		1939
1393	return if $self->{deny_save};	1940	return if $self->{deny_save};
1394		1941
…		…
1397	cf::async {	1944	cf::async {
1398	$_->contr->save for $self->players;	1945	$_->contr->save for $self->players;
1399	};	1946	};
1400		1947
1401	if ($uniq) {	1948	if ($uniq) {
1402	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1949	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1403	$self->save_objects ($uniq, cf::IO_UNIQUES);	1950	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1404	} else {	1951	} else {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1952	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1406	}	1953	}
1407	}	1954	}
1408		1955
1409	sub swap_out {	1956	sub swap_out {
1410	my ($self) = @_;	1957	my ($self) = @_;
…		…
1424		1971
1425	sub reset_at {	1972	sub reset_at {
1426	my ($self) = @_;	1973	my ($self) = @_;
1427		1974
1428	# TODO: safety, remove and allow resettable per-player maps	1975	# TODO: safety, remove and allow resettable per-player maps
1429	return 1e99 if $self->{path}{user_rel};
1430	return 1e99 if $self->{deny_reset};	1976	return 1e99 if $self->{deny_reset};
1431		1977
1432	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1978	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1433	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1979	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1434		1980
…		…
1439	my ($self) = @_;	1985	my ($self) = @_;
1440		1986
1441	$self->reset_at <= $cf::RUNTIME	1987	$self->reset_at <= $cf::RUNTIME
1442	}	1988	}
1443		1989
1444	sub unlink_save {
1445	my ($self) = @_;
1446
1447	utf8::encode (my $save = $self->{path}->save_path);
1448	aioreq_pri 3; IO::AIO::aio_unlink $save;
1449	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1450	}
1451
1452	sub rename {
1453	my ($self, $new_path) = @_;
1454
1455	$self->unlink_save;
1456
1457	delete $cf::MAP{$self->path};
1458	$self->{path} = new cf::path $new_path;
1459	$self->path ($self->{path}->as_string);
1460	$cf::MAP{$self->path} = $self;
1461
1462	$self->save;
1463	}
1464
1465	sub reset {	1990	sub reset {
1466	my ($self) = @_;	1991	my ($self) = @_;
1467		1992
1468	my $lock = cf::lock_acquire "map_data:" . $self->path;	1993	my $lock = cf::lock_acquire "map_data:$self->{path}";
1469		1994
1470	return if $self->players;	1995	return if $self->players;
1471	return if $self->{path}{user_rel};#d#
1472		1996
1473	warn "resetting map ", $self->path;#d#	1997	warn "resetting map ", $self->path;
		1998
		1999	$self->in_memory (cf::MAP_SWAPPED);
		2000
		2001	# need to save uniques path
		2002	unless ($self->{deny_save}) {
		2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2004
		2005	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2006	if $uniq;
		2007	}
1474		2008
1475	delete $cf::MAP{$self->path};	2009	delete $cf::MAP{$self->path};
		2010
		2011	$self->clear;
1476		2012
1477	$_->clear_links_to ($self) for values %cf::MAP;	2013	$_->clear_links_to ($self) for values %cf::MAP;
1478		2014
1479	$self->unlink_save;	2015	$self->unlink_save;
1480	$self->destroy;	2016	$self->destroy;
…		…
1483	my $nuke_counter = "aaaa";	2019	my $nuke_counter = "aaaa";
1484		2020
1485	sub nuke {	2021	sub nuke {
1486	my ($self) = @_;	2022	my ($self) = @_;
1487		2023
		2024	delete $cf::MAP{$self->path};
		2025
		2026	$self->unlink_save;
		2027
		2028	bless $self, "cf::map";
		2029	delete $self->{deny_reset};
1488	$self->{deny_save} = 1;	2030	$self->{deny_save} = 1;
1489	$self->reset_timeout (1);	2031	$self->reset_timeout (1);
1490	$self->rename ("{nuke}/" . ($nuke_counter++));	2032	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2033
		2034	$cf::MAP{$self->path} = $self;
		2035
1491	$self->reset; # polite request, might not happen	2036	$self->reset; # polite request, might not happen
1492	}	2037	}
1493		2038
1494	sub customise_for {	2039	=item $maps = cf::map::tmp_maps
1495	my ($map, $ob) = @_;
1496		2040
1497	if ($map->per_player) {	2041	Returns an arrayref with all map paths of currently instantiated and saved
1498	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2042	maps. May block.
		2043
		2044	=cut
		2045
		2046	sub tmp_maps() {
1499	}	2047	[
1500		2048	map {
1501	$map	2049	utf8::decode $_;
		2050	/\.map$/
		2051	? normalise $_
		2052	: ()
		2053	} @{ aio_readdir $TMPDIR or [] }
		2054	]
1502	}	2055	}
1503		2056
1504	sub emergency_save {	2057	=item $maps = cf::map::random_maps
1505	my $freeze_guard = cf::freeze_mainloop;
1506		2058
1507	warn "enter emergency perl save\n";	2059	Returns an arrayref with all map paths of currently instantiated and saved
		2060	random maps. May block.
1508		2061
1509	cf::sync_job {	2062	=cut
1510	warn "begin emergency player save\n";
1511	$_->save for values %cf::PLAYER;
1512	warn "end emergency player save\n";
1513		2063
1514	warn "begin emergency map save\n";	2064	sub random_maps() {
1515	$_->save for values %cf::MAP;	2065	[
1516	warn "end emergency map save\n";	2066	map {
1517	};	2067	utf8::decode $_;
		2068	/\.map$/
		2069	? normalise "?random/$_"
		2070	: ()
		2071	} @{ aio_readdir $RANDOMDIR or [] }
		2072	]
		2073	}
1518		2074
1519	warn "leave emergency perl save\n";	2075	=item cf::map::unique_maps
		2076
		2077	Returns an arrayref of paths of all shared maps that have
		2078	instantiated unique items. May block.
		2079
		2080	=cut
		2081
		2082	sub unique_maps() {
		2083	[
		2084	map {
		2085	utf8::decode $_;
		2086	/\.map$/
		2087	? normalise $_
		2088	: ()
		2089	} @{ aio_readdir $UNIQUEDIR or [] }
		2090	]
1520	}	2091	}
1521		2092
1522	package cf;	2093	package cf;
1523		2094
1524	=back	2095	=back
1525		2096
		2097	=head3 cf::object
		2098
		2099	=cut
		2100
		2101	package cf::object;
		2102
		2103	=over 4
		2104
		2105	=item $ob->inv_recursive
		2106
		2107	Returns the inventory of the object _and_ their inventories, recursively.
		2108
		2109	=cut
		2110
		2111	sub inv_recursive_;
		2112	sub inv_recursive_ {
		2113	map { $_, inv_recursive_ $_->inv } @_
		2114	}
		2115
		2116	sub inv_recursive {
		2117	inv_recursive_ inv $_[0]
		2118	}
		2119
		2120	package cf;
		2121
		2122	=back
1526		2123
1527	=head3 cf::object::player	2124	=head3 cf::object::player
1528		2125
1529	=over 4	2126	=over 4
1530		2127
…		…
1544		2141
1545	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2142	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1546		2143
1547	if ($self->{record_replies}) {	2144	if ($self->{record_replies}) {
1548	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2145	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2146
1549	} else {	2147	} else {
		2148	my $pl = $self->contr;
		2149
		2150	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2151	my $diag = $pl->{npc_dialog};
		2152	$diag->{pl}->ext_reply (
		2153	$diag->{id},
		2154	msgtype => "reply",
		2155	msg => $diag->{pl}->expand_cfpod ($msg),
		2156	add_topics => []
		2157	);
		2158
		2159	} else {
1550	$msg = $npc->name . " says: $msg" if $npc;	2160	$msg = $npc->name . " says: $msg" if $npc;
1551	$self->message ($msg, $flags);	2161	$self->message ($msg, $flags);
		2162	}
1552	}	2163	}
1553	}	2164	}
1554		2165
1555	=item $player_object->may ("access")	2166	=item $player_object->may ("access")
1556		2167
…		…
1570		2181
1571	=item $player_object->enter_link	2182	=item $player_object->enter_link
1572		2183
1573	Freezes the player and moves him/her to a special map (C<{link}>).	2184	Freezes the player and moves him/her to a special map (C<{link}>).
1574		2185
1575	The player should be reaosnably safe there for short amounts of time. You	2186	The player should be reasonably safe there for short amounts of time. You
1576	I<MUST> call C<leave_link> as soon as possible, though.	2187	I<MUST> call C<leave_link> as soon as possible, though.
1577		2188
		2189	Will never block.
		2190
1578	=item $player_object->leave_link ($map, $x, $y)	2191	=item $player_object->leave_link ($map, $x, $y)
1579		2192
1580	Moves the player out of the specila link map onto the given map. If the	2193	Moves the player out of the special C<{link}> map onto the specified
1581	map is not valid (or omitted), the player will be moved back to the	2194	map. If the map is not valid (or omitted), the player will be moved back
1582	location he/she was before the call to C<enter_link>, or, if that fails,	2195	to the location he/she was before the call to C<enter_link>, or, if that
1583	to the emergency map position.	2196	fails, to the emergency map position.
1584		2197
1585	Might block.	2198	Might block.
1586		2199
1587	=cut	2200	=cut
		2201
		2202	sub link_map {
		2203	unless ($LINK_MAP) {
		2204	$LINK_MAP = cf::map::find "{link}"
		2205	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2206	$LINK_MAP->load;
		2207	}
		2208
		2209	$LINK_MAP
		2210	}
1588		2211
1589	sub cf::object::player::enter_link {	2212	sub cf::object::player::enter_link {
1590	my ($self) = @_;	2213	my ($self) = @_;
1591		2214
1592	$self->deactivate_recursive;	2215	$self->deactivate_recursive;
1593		2216
1594	return if $self->map == $LINK_MAP;	2217	return if UNIVERSAL::isa $self->map, "ext::map_link";
1595		2218
1596	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2219	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1597	if $self->map;	2220	if $self->map && $self->map->{path} ne "{link}";
1598		2221
1599	$self->enter_map ($LINK_MAP, 20, 20);	2222	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1600	}	2223	}
1601		2224
1602	sub cf::object::player::leave_link {	2225	sub cf::object::player::leave_link {
1603	my ($self, $map, $x, $y) = @_;	2226	my ($self, $map, $x, $y) = @_;
		2227
		2228	return unless $self->contr->active;
1604		2229
1605	my $link_pos = delete $self->{_link_pos};	2230	my $link_pos = delete $self->{_link_pos};
1606		2231
1607	unless ($map) {	2232	unless ($map) {
1608	# restore original map position	2233	# restore original map position
…		…
1622	# use -1 or undef as default coordinates, not 0, 0	2247	# use -1 or undef as default coordinates, not 0, 0
1623	($x, $y) = ($map->enter_x, $map->enter_y)	2248	($x, $y) = ($map->enter_x, $map->enter_y)
1624	if $x <=0 && $y <= 0;	2249	if $x <=0 && $y <= 0;
1625		2250
1626	$map->load;	2251	$map->load;
		2252	$map->load_diag;
1627		2253
1628	return unless $self->contr->active;	2254	return unless $self->contr->active;
1629	$self->activate_recursive;	2255	$self->activate_recursive;
		2256
		2257	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1630	$self->enter_map ($map, $x, $y);	2258	$self->enter_map ($map, $x, $y);
1631	}	2259	}
1632		2260
1633	cf::player->attach (	2261	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1634	on_logout => sub {
1635	my ($pl) = @_;
1636		2262
1637	# abort map switching before logout	2263	Moves the player to the given map-path and coordinates by first freezing
1638	if ($pl->ob->{_link_pos}) {	2264	her, loading and preparing them map, calling the provided $check callback
1639	cf::sync_job {	2265	that has to return the map if sucecssful, and then unfreezes the player on
1640	$pl->ob->leave_link	2266	the new (success) or old (failed) map position. In either case, $done will
1641	};	2267	be called at the end of this process.
1642	}
1643	},
1644	on_login => sub {
1645	my ($pl) = @_;
1646		2268
1647	# try to abort aborted map switching on player login :)
1648	# should happen only on crashes
1649	if ($pl->ob->{_link_pos}) {
1650	$pl->ob->enter_link;
1651	(async {
1652	# we need this sleep as the login has a concurrent enter_exit running
1653	# and this sleep increases chances of the player not ending up in scorn
1654	$pl->ob->reply (undef,
1655	"There was an internal problem at your last logout, "
1656	. "the server will try to bring you to your intended destination in a second.",
1657	cf::NDI_RED);
1658	Coro::Timer::sleep 1;
1659	$pl->ob->leave_link;
1660	})->prio (2);
1661	}
1662	},
1663	);
1664
1665	=item $player_object->goto ($path, $x, $y)
1666
1667	=cut	2269	=cut
		2270
		2271	our $GOTOGEN;
1668		2272
1669	sub cf::object::player::goto {	2273	sub cf::object::player::goto {
1670	my ($self, $path, $x, $y) = @_;	2274	my ($self, $path, $x, $y, $check, $done) = @_;
		2275
		2276	# do generation counting so two concurrent goto's will be executed in-order
		2277	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1671		2278
1672	$self->enter_link;	2279	$self->enter_link;
1673		2280
1674	(async {	2281	(async {
1675	$path = new cf::path $path;	2282	my $map = eval {
1676
1677	my $map = cf::map::find $path->as_string;	2283	my $map = cf::map::find $path;
		2284
		2285	if ($map) {
1678	$map = $map->customise_for ($self) if $map;	2286	$map = $map->customise_for ($self);
1679		2287	$map = $check->($map) if $check && $map;
1680	# warn "entering ", $map->path, " at ($x, $y)\n"	2288	} else {
1681	# if $map;
1682
1683	$map or $map->cluck ("oy");#d#
1684	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2289	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2290	}
1685		2291
		2292	$map
		2293	};
		2294
		2295	if ($@) {
		2296	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2297	LOG llevError | logBacktrace, Carp::longmess $@;
		2298	}
		2299
		2300	if ($gen == $self->{_goto_generation}) {
		2301	delete $self->{_goto_generation};
1686	$self->leave_link ($map, $x, $y);	2302	$self->leave_link ($map, $x, $y);
		2303	}
		2304
		2305	$done->() if $done;
1687	})->prio (1);	2306	})->prio (1);
1688	}	2307	}
1689		2308
1690	=item $player_object->enter_exit ($exit_object)	2309	=item $player_object->enter_exit ($exit_object)
1691		2310
…		…
1693		2312
1694	sub parse_random_map_params {	2313	sub parse_random_map_params {
1695	my ($spec) = @_;	2314	my ($spec) = @_;
1696		2315
1697	my $rmp = { # defaults	2316	my $rmp = { # defaults
1698	xsize => 10,	2317	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2318	ysize => (cf::rndm 15, 40),
		2319	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2320	#layout => string,
1700	};	2321	};
1701		2322
1702	for (split /\n/, $spec) {	2323	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2324	my ($k, $v) = split /\s+/, $_, 2;
1704		2325
…		…
1708	$rmp	2329	$rmp
1709	}	2330	}
1710		2331
1711	sub prepare_random_map {	2332	sub prepare_random_map {
1712	my ($exit) = @_;	2333	my ($exit) = @_;
		2334
		2335	my $guard = cf::lock_acquire "exit_prepare:$exit";
1713		2336
1714	# all this does is basically replace the /! path by	2337	# all this does is basically replace the /! path by
1715	# a new random map path (?random/...) with a seed	2338	# a new random map path (?random/...) with a seed
1716	# that depends on the exit object	2339	# that depends on the exit object
1717		2340
1718	my $rmp = parse_random_map_params $exit->msg;	2341	my $rmp = parse_random_map_params $exit->msg;
1719		2342
1720	if ($exit->map) {	2343	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2344	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2345	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2346	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2347	$rmp->{origin_y} = $exit->y;
1725	}	2348	}
1726		2349
1727	$rmp->{random_seed} ||= $exit->random_seed;	2350	$rmp->{random_seed} ||= $exit->random_seed;
1728		2351
1729	my $data = cf::to_json $rmp;	2352	my $data = cf::to_json $rmp;
1730	my $md5 = Digest::MD5::md5_hex $data;	2353	my $md5 = Digest::MD5::md5_hex $data;
		2354	my $meta = "$RANDOMDIR/$md5.meta";
1731		2355
1732	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2356	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1733	aio_write $fh, 0, (length $data), $data, 0;	2357	aio_write $fh, 0, (length $data), $data, 0;
		2358	undef $fh;
		2359	aio_rename "$meta~", $meta;
1734		2360
1735	$exit->slaying ("?random/$md5");	2361	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2362	$exit->msg (undef);
1737	}	2363	}
1738	}	2364	}
…		…
1740	sub cf::object::player::enter_exit {	2366	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2367	my ($self, $exit) = @_;
1742		2368
1743	return unless $self->type == cf::PLAYER;	2369	return unless $self->type == cf::PLAYER;
1744		2370
		2371	if ($exit->slaying eq "/!") {
		2372	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2373	# the problem is that $exit might not survive long enough
		2374	# so it needs to be done right now, right here
		2375	cf::sync_job { prepare_random_map $exit };
		2376	}
		2377
		2378	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2379	my $hp = $exit->stats->hp;
		2380	my $sp = $exit->stats->sp;
		2381
1745	$self->enter_link;	2382	$self->enter_link;
		2383
		2384	# if exit is damned, update players death & WoR home-position
		2385	$self->contr->savebed ($slaying, $hp, $sp)
		2386	if $exit->flag (FLAG_DAMNED);
1746		2387
1747	(async {	2388	(async {
1748	$self->deactivate_recursive; # just to be sure	2389	$self->deactivate_recursive; # just to be sure
1749	unless (eval {	2390	unless (eval {
1750	prepare_random_map $exit	2391	$self->goto ($slaying, $hp, $sp);
1751	if $exit->slaying eq "/!";
1752
1753	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1755		2392
1756	1;	2393	1;
1757	}) {	2394	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2395	$self->message ("Something went wrong deep within the crossfire server. "
1759	. "I'll try to bring you back to the map you were before. "	2396	. "I'll try to bring you back to the map you were before. "
1760	. "Please report this to the dungeon master",	2397	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2398	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2399
1763	warn "ERROR in enter_exit: $@";	2400	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2401	$self->leave_link;
1765	}	2402	}
1766	})->prio (1);	2403	})->prio (1);
…		…
1779		2416
1780	sub cf::client::send_drawinfo {	2417	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2418	my ($self, $text, $flags) = @_;
1782		2419
1783	utf8::encode $text;	2420	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2421	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2422	}
1786		2423
		2424	=item $client->send_msg ($color, $type, $msg, [extra...])
		2425
		2426	Send a drawinfo or msg packet to the client, formatting the msg for the
		2427	client if neccessary. C<$type> should be a string identifying the type of
		2428	the message, with C<log> being the default. If C<$color> is negative, suppress
		2429	the message unless the client supports the msg packet.
		2430
		2431	=cut
		2432
		2433	sub cf::client::send_msg {
		2434	my ($self, $color, $type, $msg, @extra) = @_;
		2435
		2436	$msg = $self->pl->expand_cfpod ($msg);
		2437
		2438	return unless @extra || length $msg;
		2439
		2440	if ($self->can_msg) {
		2441	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2442	} else {
		2443	# replace some tags by gcfclient-compatible ones
		2444	for ($msg) {
		2445	1 while
		2446	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2447	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2448	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2449	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2450	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2451	}
		2452
		2453	if ($color >= 0) {
		2454	if (0 && $msg =~ /\[/) {
		2455	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2456	} else {
		2457	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2458	$self->send_packet ("drawinfo $color $msg")
		2459	}
		2460	}
		2461	}
		2462	}
		2463
		2464	=item $client->ext_event ($type, %msg)
		2465
		2466	Sends an ext event to the client.
		2467
		2468	=cut
		2469
		2470	sub cf::client::ext_event($$%) {
		2471	my ($self, $type, %msg) = @_;
		2472
		2473	return unless $self->extcmd;
		2474
		2475	$msg{msgtype} = "event_$type";
		2476	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2477	}
1787		2478
1788	=item $success = $client->query ($flags, "text", \&cb)	2479	=item $success = $client->query ($flags, "text", \&cb)
1789		2480
1790	Queues a query to the client, calling the given callback with	2481	Queues a query to the client, calling the given callback with
1791	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2482	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1792	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2483	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1793		2484
1794	Queries can fail, so check the return code. Or don't, as queries will become	2485	Queries can fail, so check the return code. Or don't, as queries will
1795	reliable at some point in the future.	2486	become reliable at some point in the future.
1796		2487
1797	=cut	2488	=cut
1798		2489
1799	sub cf::client::query {	2490	sub cf::client::query {
1800	my ($self, $flags, $text, $cb) = @_;	2491	my ($self, $flags, $text, $cb) = @_;
…		…
1808	utf8::encode $text;	2499	utf8::encode $text;
1809	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2500	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1810		2501
1811	$self->send_packet ($self->{query_queue}[0][0])	2502	$self->send_packet ($self->{query_queue}[0][0])
1812	if @{ $self->{query_queue} } == 1;	2503	if @{ $self->{query_queue} } == 1;
		2504
		2505	1
1813	}	2506	}
1814		2507
1815	cf::client->attach (	2508	cf::client->attach (
		2509	on_connect => sub {
		2510	my ($ns) = @_;
		2511
		2512	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2513	},
1816	on_reply => sub {	2514	on_reply => sub {
1817	my ($ns, $msg) = @_;	2515	my ($ns, $msg) = @_;
1818		2516
1819	# this weird shuffling is so that direct followup queries	2517	# this weird shuffling is so that direct followup queries
1820	# get handled first	2518	# get handled first
1821	my $queue = delete $ns->{query_queue}	2519	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	2520	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		2521
1824	(shift @$queue)->[1]->($msg);	2522	(shift @$queue)->[1]->($msg);
		2523	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		2524
1826	push @{ $ns->{query_queue} }, @$queue;	2525	push @{ $ns->{query_queue} }, @$queue;
1827		2526
1828	if (@{ $ns->{query_queue} } == @$queue) {	2527	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	2528	if (@$queue) {
…		…
1831	} else {	2530	} else {
1832	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2531	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1833	}	2532	}
1834	}	2533	}
1835	},	2534	},
		2535	on_exticmd => sub {
		2536	my ($ns, $buf) = @_;
		2537
		2538	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2539
		2540	if (ref $msg) {
		2541	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2542	if (my %reply = $cb->($ns, $msg)) {
		2543	$reply{msgid} = $msg->{msgid};
		2544	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2545	}
		2546	}
		2547	} else {
		2548	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2549	}
		2550
		2551	cf::override;
		2552	},
1836	);	2553	);
1837		2554
1838	=item $client->async (\&cb)	2555	=item $client->async (\&cb)
1839		2556
1840	Create a new coroutine, running the specified callback. The coroutine will	2557	Create a new coroutine, running the specified callback. The coroutine will
…		…
1887		2604
1888	# here we export the classes and methods available to script code	2605	# here we export the classes and methods available to script code
1889		2606
1890	=pod	2607	=pod
1891		2608
1892	The following fucntions and emthods are available within a safe environment:	2609	The following functions and methods are available within a safe environment:
1893		2610
1894	cf::object contr pay_amount pay_player map	2611	cf::object
		2612	contr pay_amount pay_player map x y force_find force_add
		2613	insert remove
		2614
1895	cf::object::player player	2615	cf::object::player
1896	cf::player peaceful	2616	player
1897	cf::map trigger	2617
		2618	cf::player
		2619	peaceful
		2620
		2621	cf::map
		2622	trigger
1898		2623
1899	=cut	2624	=cut
1900		2625
1901	for (	2626	for (
1902	["cf::object" => qw(contr pay_amount pay_player map)],	2627	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2628	insert remove)],
1903	["cf::object::player" => qw(player)],	2629	["cf::object::player" => qw(player)],
1904	["cf::player" => qw(peaceful)],	2630	["cf::player" => qw(peaceful)],
1905	["cf::map" => qw(trigger)],	2631	["cf::map" => qw(trigger)],
1906	) {	2632	) {
1907	no strict 'refs';	2633	no strict 'refs';
…		…
1978	=back	2704	=back
1979		2705
1980	=cut	2706	=cut
1981		2707
1982	#############################################################################	2708	#############################################################################
		2709	# the server's init and main functions
1983		2710
1984	=head2 EXTENSION DATABASE SUPPORT	2711	sub load_facedata($) {
		2712	my ($path) = @_;
1985		2713
1986	Crossfire maintains a very simple database for extension use. It can	2714	warn "loading facedata from $path\n";
1987	currently store anything that can be serialised using Storable, which
1988	excludes objects.
1989		2715
1990	The parameter C<$family> should best start with the name of the extension	2716	my $facedata;
1991	using it, it should be unique.	2717	0 < aio_load $path, $facedata
		2718	or die "$path: $!";
1992		2719
1993	=over 4	2720	$facedata = Coro::Storable::thaw $facedata;
1994		2721
1995	=item $hashref = cf::db_get $family	2722	$facedata->{version} == 2
		2723	or cf::cleanup "$path: version mismatch, cannot proceed.";
1996		2724
1997	Return a hashref for use by the extension C<$family>, which can be
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000
2001	=item $value = cf::db_get $family => $key
2002
2003	Returns a single value from the database
2004
2005	=item cf::db_put $family => $hashref
2006
2007	Stores the given family hashref into the database. Updates are delayed, if
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2009
2010	=item cf::db_put $family => $key => $value
2011
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022
2023	=cut
2024
2025	our $DB;
2026
2027	{
2028	my $path = cf::localdir . "/database.pst";
2029
2030	sub db_load() {
2031	$DB = stat $path ? Storable::retrieve $path : { };
2032	}	2725	{
		2726	my $faces = $facedata->{faceinfo};
2033		2727
2034	my $pid;	2728	while (my ($face, $info) = each %$faces) {
		2729	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2730	cf::face::set_visibility $idx, $info->{visibility};
		2731	cf::face::set_magicmap $idx, $info->{magicmap};
		2732	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2733	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2035		2734
2036	sub db_save() {	2735	cf::cede_to_tick;
2037	waitpid $pid, 0 if $pid;
2038	if (0 == ($pid = fork)) {
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});
2056
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}
2061
2062	sub db_get($;$) {
2063	@_ >= 2
2064	? $DB->{$_[0]}{$_[1]}
2065	: ($DB->{$_[0]} ||= { })
2066	}
2067
2068	sub db_put($$;$) {
2069	if (@_ >= 3) {
2070	$DB->{$_[0]}{$_[1]} = $_[2];
2071	} else {
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076
2077	cf::global->attach (
2078	prio => 10000,
2079	on_cleanup => sub {
2080	db_sync;
2081	},	2736	}
2082	);
2083	}
2084		2737
2085	#############################################################################	2738	while (my ($face, $info) = each %$faces) {
2086	# the server's main()	2739	next unless $info->{smooth};
		2740	my $idx = cf::face::find $face
		2741	or next;
		2742	if (my $smooth = cf::face::find $info->{smooth}) {
		2743	cf::face::set_smooth $idx, $smooth;
		2744	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2745	} else {
		2746	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2747	}
		2748
		2749	cf::cede_to_tick;
		2750	}
		2751	}
		2752
		2753	{
		2754	my $anims = $facedata->{animinfo};
		2755
		2756	while (my ($anim, $info) = each %$anims) {
		2757	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2758	cf::cede_to_tick;
		2759	}
		2760
		2761	cf::anim::invalidate_all; # d'oh
		2762	}
		2763
		2764	{
		2765	# TODO: for gcfclient pleasure, we should give resources
		2766	# that gcfclient doesn't grok a >10000 face index.
		2767	my $res = $facedata->{resource};
		2768	my $enc = JSON::XS->new->utf8->canonical;
		2769
		2770	while (my ($name, $info) = each %$res) {
		2771	my $meta = $enc->encode ({
		2772	name => $name,
		2773	type => $info->{type},
		2774	copyright => $info->{copyright}, #TODO#
		2775	});
		2776
		2777	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2778
		2779	if ($name =~ /\.jpg$/) {
		2780	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2781	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2782	} else {
		2783	my $data = pack "(w/a*)*", $meta, $info->{data};
		2784	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2785
		2786	cf::face::set_type $idx, 1;
		2787	cf::face::set_data $idx, 0, $data, $chk;
		2788	}
		2789
		2790	cf::cede_to_tick;
		2791	}
		2792	}
		2793
		2794	1
		2795	}
		2796
		2797	sub reload_regions {
		2798	load_resource_file "$MAPDIR/regions"
		2799	or die "unable to load regions file\n";
		2800
		2801	for (cf::region::list) {
		2802	$_->{match} = qr/$_->{match}/
		2803	if exists $_->{match};
		2804	}
		2805	}
		2806
		2807	sub reload_facedata {
		2808	load_facedata "$DATADIR/facedata"
		2809	or die "unable to load facedata\n";
		2810	}
		2811
		2812	sub reload_archetypes {
		2813	load_resource_file "$DATADIR/archetypes"
		2814	or die "unable to load archetypes\n";
		2815	#d# NEED to laod twice to resolve forward references
		2816	# this really needs to be done in an extra post-pass
		2817	# (which needs to be synchronous, so solve it differently)
		2818	load_resource_file "$DATADIR/archetypes"
		2819	or die "unable to load archetypes\n";
		2820	}
		2821
		2822	sub reload_treasures {
		2823	load_resource_file "$DATADIR/treasures"
		2824	or die "unable to load treasurelists\n";
		2825	}
		2826
		2827	sub reload_resources {
		2828	warn "reloading resource files...\n";
		2829
		2830	reload_regions;
		2831	reload_facedata;
		2832	#reload_archetypes;#d#
		2833	reload_archetypes;
		2834	reload_treasures;
		2835
		2836	warn "finished reloading resource files\n";
		2837	}
		2838
		2839	sub init {
		2840	reload_resources;
		2841	}
2087		2842
2088	sub cfg_load {	2843	sub cfg_load {
2089	open my $fh, "<:utf8", cf::confdir . "/config"	2844	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	2845	or return;
2091		2846
2092	local $/;	2847	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	2848	*CFG = YAML::Syck::Load <$fh>;
2094		2849
…		…
2108		2863
2109	sub main {	2864	sub main {
2110	# we must not ever block the main coroutine	2865	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	2866	local $Coro::idle = sub {
2112	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2867	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2868	(async {
2113	async { Event::one_event };	2869	Event::one_event;
		2870	})->prio (Coro::PRIO_MAX);
2114	};	2871	};
2115		2872
2116	cfg_load;	2873	cfg_load;
2117	db_load;	2874	db_init;
2118	load_extensions;	2875	load_extensions;
		2876
		2877	$TICK_WATCHER->start;
2119	Event::loop;	2878	Event::loop;
2120	}	2879	}
2121		2880
2122	#############################################################################	2881	#############################################################################
2123	# initialisation	2882	# initialisation and cleanup
2124		2883
		2884	# install some emergency cleanup handlers
		2885	BEGIN {
		2886	for my $signal (qw(INT HUP TERM)) {
		2887	Event->signal (
		2888	reentrant => 0,
		2889	data => WF_AUTOCANCEL,
		2890	signal => $signal,
		2891	prio => 0,
		2892	cb => sub {
		2893	cf::cleanup "SIG$signal";
		2894	},
		2895	);
		2896	}
		2897	}
		2898
		2899	sub write_runtime {
		2900	my $runtime = "$LOCALDIR/runtime";
		2901
		2902	# first touch the runtime file to show we are still running:
		2903	# the fsync below can take a very very long time.
		2904
		2905	IO::AIO::aio_utime $runtime, undef, undef;
		2906
		2907	my $guard = cf::lock_acquire "write_runtime";
		2908
		2909	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2910	or return;
		2911
		2912	my $value = $cf::RUNTIME + 90 + 10;
		2913	# 10 is the runtime save interval, for a monotonic clock
		2914	# 60 allows for the watchdog to kill the server.
		2915
		2916	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2917	and return;
		2918
		2919	# always fsync - this file is important
		2920	aio_fsync $fh
		2921	and return;
		2922
		2923	# touch it again to show we are up-to-date
		2924	aio_utime $fh, undef, undef;
		2925
		2926	close $fh
		2927	or return;
		2928
		2929	aio_rename "$runtime~", $runtime
		2930	and return;
		2931
		2932	warn "runtime file written.\n";
		2933
		2934	1
		2935	}
		2936
		2937	sub emergency_save() {
		2938	my $freeze_guard = cf::freeze_mainloop;
		2939
		2940	warn "enter emergency perl save\n";
		2941
		2942	cf::sync_job {
		2943	# use a peculiar iteration method to avoid tripping on perl
		2944	# refcount bugs in for. also avoids problems with players
		2945	# and maps saved/destroyed asynchronously.
		2946	warn "begin emergency player save\n";
		2947	for my $login (keys %cf::PLAYER) {
		2948	my $pl = $cf::PLAYER{$login} or next;
		2949	$pl->valid or next;
		2950	$pl->save;
		2951	}
		2952	warn "end emergency player save\n";
		2953
		2954	warn "begin emergency map save\n";
		2955	for my $path (keys %cf::MAP) {
		2956	my $map = $cf::MAP{$path} or next;
		2957	$map->valid or next;
		2958	$map->save;
		2959	}
		2960	warn "end emergency map save\n";
		2961
		2962	warn "begin emergency database checkpoint\n";
		2963	BDB::db_env_txn_checkpoint $DB_ENV;
		2964	warn "end emergency database checkpoint\n";
		2965	};
		2966
		2967	warn "leave emergency perl save\n";
		2968	}
		2969
		2970	sub post_cleanup {
		2971	my ($make_core) = @_;
		2972
		2973	warn Carp::longmess "post_cleanup backtrace"
		2974	if $make_core;
		2975	}
		2976
2125	sub reload() {	2977	sub do_reload_perl() {
2126	# can/must only be called in main	2978	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	2979	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	2980	warn "can only reload from main coroutine";
2129	return;	2981	return;
2130	}	2982	}
2131		2983
2132	warn "reloading...";	2984	warn "reloading...";
2133		2985
2134	my $guard = freeze_mainloop;	2986	warn "entering sync_job";
		2987
		2988	cf::sync_job {
		2989	cf::write_runtime; # external watchdog should not bark
2135	cf::emergency_save;	2990	cf::emergency_save;
		2991	cf::write_runtime; # external watchdog should not bark
2136		2992
2137	eval {	2993	warn "syncing database to disk";
		2994	BDB::db_env_txn_checkpoint $DB_ENV;
		2995
2138	# if anything goes wrong in here, we should simply crash as we already saved	2996	# if anything goes wrong in here, we should simply crash as we already saved
2139		2997
2140	# cancel all watchers	2998	warn "cancelling all WF_AUTOCANCEL watchers";
2141	for (Event::all_watchers) {	2999	for (Event::all_watchers) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	3000	$_->cancel if $_->data & WF_AUTOCANCEL;
2143	}	3001	}
2144		3002
		3003	warn "flushing outstanding aio requests";
		3004	for (;;) {
		3005	BDB::flush;
		3006	IO::AIO::flush;
		3007	Coro::cede;
		3008	last unless IO::AIO::nreqs || BDB::nreqs;
		3009	warn "iterate...";
		3010	}
		3011
		3012	++$RELOAD;
		3013
2145	# cancel all extension coros	3014	warn "cancelling all extension coros";
2146	$_->cancel for values %EXT_CORO;	3015	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();	3016	%EXT_CORO = ();
2148		3017
2149	# unload all extensions	3018	warn "removing commands";
2150	for (@exts) {	3019	%COMMAND = ();
		3020
		3021	warn "removing ext/exti commands";
		3022	%EXTCMD = ();
		3023	%EXTICMD = ();
		3024
		3025	warn "unloading/nuking all extensions";
		3026	for my $pkg (@EXTS) {
2151	warn "unloading <$_>";	3027	warn "... unloading $pkg";
2152	unload_extension $_;	3028
		3029	if (my $cb = $pkg->can ("unload")) {
		3030	eval {
		3031	$cb->($pkg);
		3032	1
		3033	} or warn "$pkg unloaded, but with errors: $@";
2153	}	3034	}
2154		3035
		3036	warn "... nuking $pkg";
		3037	Symbol::delete_package $pkg;
		3038	}
		3039
2155	# unload all modules loaded from $LIBDIR	3040	warn "unloading all perl modules loaded from $LIBDIR";
2156	while (my ($k, $v) = each %INC) {	3041	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3042	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158		3043
2159	warn "removing <$k>";	3044	warn "... unloading $k";
2160	delete $INC{$k};	3045	delete $INC{$k};
2161		3046
2162	$k =~ s/\.pm$//;	3047	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;	3048	$k =~ s/\//::/g;
2164		3049
…		…
2167	}	3052	}
2168		3053
2169	Symbol::delete_package $k;	3054	Symbol::delete_package $k;
2170	}	3055	}
2171		3056
2172	# sync database to disk
2173	cf::db_sync;
2174	IO::AIO::flush;
2175
2176	# get rid of safe::, as good as possible	3057	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	3058	Symbol::delete_package "safe::$_"
2178	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3059	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2179		3060
2180	# remove register_script_function callbacks
2181	# TODO
2182
2183	# unload cf.pm "a bit"	3061	warn "unloading cf.pm \"a bit\"";
2184	delete $INC{"cf.pm"};	3062	delete $INC{"cf.pm"};
		3063	delete $INC{"cf/pod.pm"};
2185		3064
2186	# don't, removes xs symbols, too,	3065	# don't, removes xs symbols, too,
2187	# and global variables created in xs	3066	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	3067	#Symbol::delete_package __PACKAGE__;
2189		3068
2190	# reload cf.pm	3069	warn "unload completed, starting to reload now";
		3070
2191	warn "reloading cf.pm";	3071	warn "reloading cf.pm";
2192	require cf;	3072	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3073	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2194		3074
2195	# load config and database again	3075	warn "loading config and database again";
2196	cf::cfg_load;	3076	cf::cfg_load;
2197	cf::db_load;
2198		3077
2199	# load extensions
2200	warn "load extensions";	3078	warn "loading extensions";
2201	cf::load_extensions;	3079	cf::load_extensions;
2202		3080
2203	# reattach attachments to objects	3081	warn "reattaching attachments to objects/players";
2204	warn "reattach";	3082	_global_reattach; # objects, sockets
2205	_global_reattach;	3083	warn "reattaching attachments to maps";
2206	reattach $_ for values %MAP;	3084	reattach $_ for values %MAP;
2207	};	3085	warn "reattaching attachments to players";
		3086	reattach $_ for values %PLAYER;
2208		3087
2209	if ($@) {	3088	warn "leaving sync_job";
		3089
		3090	1
		3091	} or do {
2210	warn $@;	3092	warn $@;
2211	warn "error while reloading, exiting.";	3093	warn "error while reloading, exiting.";
2212	exit 1;	3094	exit 1;
2213	}	3095	};
2214		3096
2215	warn "reloaded successfully";	3097	warn "reloaded";
2216	};	3098	};
2217		3099
2218	#############################################################################	3100	our $RELOAD_WATCHER; # used only during reload
2219		3101
2220	unless ($LINK_MAP) {	3102	sub reload_perl() {
2221	$LINK_MAP = cf::map::new;	3103	# doing reload synchronously and two reloads happen back-to-back,
		3104	# coro crashes during coro_state_free->destroy here.
2222		3105
2223	$LINK_MAP->width (41);	3106	$RELOAD_WATCHER ||= Event->timer (
2224	$LINK_MAP->height (41);	3107	reentrant => 0,
2225	$LINK_MAP->alloc;
2226	$LINK_MAP->path ("{link}");
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,	3108	after => 0,
		3109	data => WF_AUTOCANCEL,
2233	cb => sub {	3110	cb => sub {
2234	$_[0]->w->cancel;	3111	do_reload_perl;
2235		3112	undef $RELOAD_WATCHER;
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});	3113	},
2254		3114	);
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	3115	}
2260
2261	register "<global>", __PACKAGE__;
2262		3116
2263	register_command "reload" => sub {	3117	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	3118	my ($who, $arg) = @_;
2265		3119
2266	if ($who->flag (FLAG_WIZ)) {	3120	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	3121	$who->message ("reloading server.");
		3122	async { reload_perl };
2270	}	3123	}
2271	};	3124	};
2272		3125
2273	unshift @INC, $LIBDIR;	3126	unshift @INC, $LIBDIR;
2274		3127
		3128	my $bug_warning = 0;
		3129
		3130	our @WAIT_FOR_TICK;
		3131	our @WAIT_FOR_TICK_BEGIN;
		3132
		3133	sub wait_for_tick {
		3134	return unless $TICK_WATCHER->is_active;
		3135	return if $Coro::current == $Coro::main;
		3136
		3137	my $signal = new Coro::Signal;
		3138	push @WAIT_FOR_TICK, $signal;
		3139	$signal->wait;
		3140	}
		3141
		3142	sub wait_for_tick_begin {
		3143	return unless $TICK_WATCHER->is_active;
		3144	return if $Coro::current == $Coro::main;
		3145
		3146	my $signal = new Coro::Signal;
		3147	push @WAIT_FOR_TICK_BEGIN, $signal;
		3148	$signal->wait;
		3149	}
		3150
		3151	my $min = 1e6;#d#
		3152	my $avg = 10;
2275	$TICK_WATCHER = Event->timer (	3153	$TICK_WATCHER = Event->timer (
2276	reentrant => 0,	3154	reentrant => 0,
		3155	parked => 1,
2277	prio => 0,	3156	prio => 0,
2278	at => $NEXT_TICK || $TICK,	3157	at => $NEXT_TICK || $TICK,
2279	data => WF_AUTOCANCEL,	3158	data => WF_AUTOCANCEL,
2280	cb => sub {	3159	cb => sub {
		3160	if ($Coro::current != $Coro::main) {
		3161	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3162	unless ++$bug_warning > 10;
		3163	return;
		3164	}
		3165
		3166	$NOW = $tick_start = Event::time;
		3167
2281	cf::server_tick; # one server iteration	3168	cf::server_tick; # one server iteration
		3169
		3170	0 && sync_job {#d#
		3171	for(1..10) {
		3172	my $t = Event::time;
		3173	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3174	or die;
		3175
		3176	$map->width (50);
		3177	$map->height (50);
		3178	$map->alloc;
		3179	$map->_load_objects ("/tmp/x.map", 1);
		3180	my $t = Event::time - $t;
		3181
		3182	#next unless $t < 0.0013;#d#
		3183	if ($t < $min) {
		3184	$min = $t;
		3185	}
		3186	$avg = $avg * 0.99 + $t * 0.01;
		3187	}
		3188	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3189	exit 0;
		3190	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3191	};
		3192
2282	$RUNTIME += $TICK;	3193	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;	3194	$NEXT_TICK += $TICK;
2284		3195
		3196	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3197	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3198	Coro::async_pool {
		3199	write_runtime
		3200	or warn "ERROR: unable to write runtime file: $!";
		3201	};
		3202	}
		3203
		3204	# my $AFTER = Event::time;
		3205	# warn $AFTER - $NOW;#d#
		3206
		3207	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3208	$sig->send;
		3209	}
		3210	while (my $sig = shift @WAIT_FOR_TICK) {
		3211	$sig->send;
		3212	}
		3213
		3214	$NOW = Event::time;
		3215
2285	# if we are delayed by four ticks or more, skip them all	3216	# if we are delayed by four ticks or more, skip them all
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3217	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2287		3218
2288	$TICK_WATCHER->at ($NEXT_TICK);	3219	$TICK_WATCHER->at ($NEXT_TICK);
2289	$TICK_WATCHER->start;	3220	$TICK_WATCHER->start;
		3221
		3222	$LOAD = ($NOW - $tick_start) / $TICK;
		3223	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3224
		3225	_post_tick;
		3226
		3227
2290	},	3228	},
2291	);	3229	);
2292		3230
		3231	{
2293	IO::AIO::max_poll_time $TICK * 0.2;	3232	BDB::max_poll_time $TICK * 0.1;
2294		3233	$BDB_POLL_WATCHER = Event->io (
2295	Event->io (	3234	reentrant => 0,
2296	fd => IO::AIO::poll_fileno,	3235	fd => BDB::poll_fileno,
2297	poll => 'r',	3236	poll => 'r',
2298	prio => 5,	3237	prio => 0,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,	3238	data => WF_AUTOCANCEL,
2305	after => 0,	3239	cb => \&BDB::poll_cb,
2306	interval => 10,	3240	);
2307	cb => sub {	3241	BDB::min_parallel 8;
2308	(Coro::unblock_sub {	3242
2309	write_runtime	3243	BDB::set_sync_prepare {
2310	or warn "ERROR: unable to write runtime file: $!";	3244	my $status;
		3245	my $current = $Coro::current;
		3246	(
		3247	sub {
		3248	$status = $!;
		3249	$current->ready; undef $current;
		3250	},
		3251	sub {
		3252	Coro::schedule while defined $current;
		3253	$! = $status;
		3254	},
		3255	)
		3256	};
		3257
		3258	unless ($DB_ENV) {
		3259	$DB_ENV = BDB::db_env_create;
		3260
		3261	cf::sync_job {
		3262	eval {
		3263	BDB::db_env_open
		3264	$DB_ENV,
		3265	$BDBDIR,
		3266	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3267	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3268	0666;
		3269
		3270	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3271
		3272	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3273	$DB_ENV->set_lk_detect;
		3274	};
		3275
		3276	cf::cleanup "db_env_open(db): $@" if $@;
2311	})->();	3277	};
2312	},	3278	}
2313	);	3279	}
		3280
		3281	{
		3282	IO::AIO::min_parallel 8;
		3283
		3284	undef $Coro::AIO::WATCHER;
		3285	IO::AIO::max_poll_time $TICK * 0.1;
		3286	$AIO_POLL_WATCHER = Event->io (
		3287	reentrant => 0,
		3288	data => WF_AUTOCANCEL,
		3289	fd => IO::AIO::poll_fileno,
		3290	poll => 'r',
		3291	prio => 6,
		3292	cb => \&IO::AIO::poll_cb,
		3293	);
		3294	}
		3295
		3296	my $_log_backtrace;
		3297
		3298	sub _log_backtrace {
		3299	my ($msg, @addr) = @_;
		3300
		3301	$msg =~ s/\n//;
		3302
		3303	# limit the # of concurrent backtraces
		3304	if ($_log_backtrace < 2) {
		3305	++$_log_backtrace;
		3306	async {
		3307	my @bt = fork_call {
		3308	@addr = map { sprintf "%x", $_ } @addr;
		3309	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3310	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3311	or die "addr2line: $!";
		3312
		3313	my @funcs;
		3314	my @res = <$fh>;
		3315	chomp for @res;
		3316	while (@res) {
		3317	my ($func, $line) = splice @res, 0, 2, ();
		3318	push @funcs, "[$func] $line";
		3319	}
		3320
		3321	@funcs
		3322	};
		3323
		3324	LOG llevInfo, "[ABT] $msg\n";
		3325	LOG llevInfo, "[ABT] $_\n" for @bt;
		3326	--$_log_backtrace;
		3327	};
		3328	} else {
		3329	LOG llevInfo, "[ABT] $msg\n";
		3330	LOG llevInfo, "[ABT] [suppressed]\n";
		3331	}
		3332	}
		3333
		3334	# load additional modules
		3335	use cf::pod;
2314		3336
2315	END { cf::emergency_save }	3337	END { cf::emergency_save }
2316		3338
2317	1	3339	1
2318		3340

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