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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.110 by root, Mon Jan 1 11:21:55 2007 UTC vs.
Revision 1.310 by elmex, Mon Jul 16 15:43:49 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;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
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 (2); # 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
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	94
55	our $RANDOM_MAPS = cf::localdir . "/random";	95	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	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	115	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		116
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	117	sub cf::map::normalise;
78		118
79	#############################################################################	119	#############################################################################
80		120
81	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
82		122
…		…
89	=item $cf::RUNTIME	129	=item $cf::RUNTIME
90		130
91	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
92	every server tick.	132	every server tick.
93		133
94	=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
95		137
96	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		142
99	=item $cf::NOW	143	=item $cf::NOW
100		144
101	The time of the last (current) server tick.	145	The time of the last (current) server tick.
102		146
103	=item $cf::TICK	147	=item $cf::TICK
104		148
105	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.
106		160
107	=item %cf::CFG	161	=item %cf::CFG
108		162
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
111		177
112	=back	178	=back
113		179
114	=cut	180	=cut
115		181
116	BEGIN {	182	BEGIN {
117	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	184	my $msg = join "", @_;
119	utf8::encode $msg;
120		185
121	$msg .= "\n"	186	$msg .= "\n"
122	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
123		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
125	};	193	};
126	}	194	}
127		195
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		203
135	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	205	# within the Safe compartment.
137	for my $pkg (qw(	206	for my $pkg (qw(
138	cf::global cf::attachable	207	cf::global cf::attachable
…		…
147		216
148	$Event::DIED = sub {	217	$Event::DIED = sub {
149	warn "error in event callback: @_";	218	warn "error in event callback: @_";
150	};	219	};
151		220
152	my %ext_pkg;	221	#############################################################################
153	my @exts;
154	my @hook;
155		222
156	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
157		224
158	=over 4	225	=over 4
159		226
160	=cut	227	=item dumpval $ref
161		228
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
163		249
164	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
165		251
166	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
167		253
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
176		255
177	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
178		257
179	=cut	258	=cut
180		259
181	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
183	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
		263	sub from_json ($) { $json_coder->decode ($_[0]) }
		264
		265	=item cf::lock_wait $string
		266
		267	Wait until the given lock is available. See cf::lock_acquire.
		268
		269	=item my $lock = cf::lock_acquire $string
		270
		271	Wait until the given lock is available and then acquires it and returns
		272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
		273	for example when the coroutine gets canceled), the lock is automatically
		274	returned.
		275
		276	Lock names should begin with a unique identifier (for example, cf::map::find
		277	uses map_find and cf::map::load uses map_load).
		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
		283	=cut
		284
		285	our %LOCK;
		286
		287	sub lock_wait($) {
		288	my ($key) = @_;
		289
		290	# wait for lock, if any
		291	while ($LOCK{$key}) {
		292	push @{ $LOCK{$key} }, $Coro::current;
		293	Coro::schedule;
		294	}
184	}	295	}
		296
		297	sub lock_acquire($) {
		298	my ($key) = @_;
		299
		300	# wait, to be sure we are not locked
		301	lock_wait $key;
		302
		303	$LOCK{$key} = [];
		304
		305	Coro::guard {
		306	# wake up all waiters, to be on the safe side
		307	$_->ready for @{ delete $LOCK{$key} };
		308	}
		309	}
		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
		317	sub freeze_mainloop {
		318	return unless $TICK_WATCHER->is_active;
		319
		320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
		323	$TICK_WATCHER->stop;
		324	$guard
		325	}
		326
		327	=item cf::async { BLOCK }
		328
		329	Currently the same as Coro::async_pool, meaning you cannot use
		330	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		331	thing you are allowed to do is call C<prio> on it.
		332
		333	=cut
		334
		335	BEGIN { *async = \&Coro::async_pool }
185		336
186	=item cf::sync_job { BLOCK }	337	=item cf::sync_job { BLOCK }
187		338
188	The design of crossfire+ requires that the main coro ($Coro::main) is	339	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
191		343
192	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
195	fast or be very important.	347	fast or be very important.
…		…
197	=cut	349	=cut
198		350
199	sub sync_job(&) {	351	sub sync_job(&) {
200	my ($job) = @_;	352	my ($job) = @_;
201		353
202	my $busy = 1;
203	my @res;
204
205	my $coro = Coro::async {
206	@res = eval { $job->() };
207	warn $@ if $@;
208	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
		357	# this is the main coro, too bad, we have to block
		358	# till the operation succeeds, freezing the server :/
		359
212	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
213	local $FREEZE = 1;	361	# (but this is cancel-safe)
		362	my $freeze_guard = freeze_mainloop;
		363
		364	my $busy = 1;
		365	my @res;
		366
		367	(async {
		368	@res = eval { $job->() };
		369	warn $@ if $@;
		370	undef $busy;
214	$coro->prio (Coro::PRIO_MAX);	371	})->prio (Coro::PRIO_MAX);
		372
215	while ($busy) {	373	while ($busy) {
216	Coro::cede_notself;	374	Coro::cede or Event::one_event;
217	Event::one_event unless Coro::nready;
218	}	375	}
		376
		377	$time = Event::time - $time;
		378
		379	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		380	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		381
		382	$tick_start += $time; # do not account sync jobs to server load
		383
		384	wantarray ? @res : $res[0]
219	} else {	385	} else {
220	$coro->join;	386	# we are in another coroutine, how wonderful, everything just works
		387
		388	$job->()
221	}	389	}
222
223	wantarray ? @res : $res[0]
224	}	390	}
225		391
226	=item $coro = cf::coro { BLOCK }	392	=item $coro = cf::async_ext { BLOCK }
227		393
228	Creates and returns a new coro. This coro is automcatially being canceled	394	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	395	extension calling this is being unloaded.
230		396
231	=cut	397	=cut
232		398
233	sub coro(&) {	399	sub async_ext(&) {
234	my $cb = shift;	400	my $cb = shift;
235		401
236	my $coro; $coro = async {	402	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		403
243	$coro->on_destroy (sub {	404	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	405	delete $EXT_CORO{$coro+0};
245	});	406	});
246	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
247		408
248	$coro	409	$coro
249	}	410	}
250		411
251	sub write_runtime {	412	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		413
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	414	Executes the given code block with the given arguments in a seperate
255	or return;	415	process, returning the results. Everything must be serialisable with
		416	Coro::Storable. May, of course, block. Note that the executed sub may
		417	never block itself or use any form of Event handling.
256		418
257	my $value = $cf::RUNTIME;	419	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		420
261	aio_fsync $fh	421	sub _store_scalar {
262	and return;	422	open my $fh, ">", \my $buf
263		423	or die "fork_call: cannot open fh-to-buf in child : $!";
		424	Storable::store_fd $_[0], $fh;
264	close $fh	425	close $fh;
265	or return;
266		426
267	aio_rename "$runtime~", $runtime	427	$buf
268	and return;	428	}
269		429
		430	sub fork_call(&@) {
		431	my ($cb, @args) = @_;
		432
		433	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		434	# or die "socketpair: $!";
		435	pipe my $fh1, my $fh2
		436	or die "pipe: $!";
		437
		438	if (my $pid = fork) {
		439	close $fh2;
		440
		441	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		442	warn "pst<$res>" unless $res =~ /^pst/;
		443	$res = Coro::Storable::thaw $res;
		444
		445	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		446
		447	Carp::confess $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
270	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		505	my $key = "$_[0]/$_[1]";
		506
		507	cf::sync_job {
		508	BDB::db_get $DB, undef, $key, my $data;
		509
		510	$! ? ()
		511	: $data
		512	}
		513	}
		514
		515	sub db_put($$$) {
		516	BDB::dbreq_pri 4;
		517	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		518	}
		519
		520	=item cf::cache $id => [$paths...], $processversion => $process
		521
		522	Generic caching function that returns the value of the resource $id,
		523	caching and regenerating as required.
		524
		525	This function can block.
		526
		527	=cut
		528
		529	sub cache {
		530	my ($id, $src, $processversion, $process) = @_;
		531
		532	my $meta =
		533	join "\x00",
		534	$processversion,
		535	map {
		536	aio_stat $_
		537	and Carp::croak "$_: $!";
		538
		539	($_, (stat _)[7,9])
		540	} @$src;
		541
		542	my $dbmeta = db_get cache => "$id/meta";
		543	if ($dbmeta ne $meta) {
		544	# changed, we may need to process
		545
		546	my @data;
		547	my $md5;
		548
		549	for (0 .. $#$src) {
		550	0 <= aio_load $src->[$_], $data[$_]
		551	or Carp::croak "$src->[$_]: $!";
		552	}
		553
		554	# if processing is expensive, check
		555	# checksum first
		556	if (1) {
		557	$md5 =
		558	join "\x00",
		559	$processversion,
		560	map {
		561	Coro::cede;
		562	($src->[$_], Digest::MD5::md5_hex $data[$_])
		563	} 0.. $#$src;
		564
		565
		566	my $dbmd5 = db_get cache => "$id/md5";
		567	if ($dbmd5 eq $md5) {
		568	db_put cache => "$id/meta", $meta;
		569
		570	return db_get cache => "$id/data";
		571	}
		572	}
		573
		574	my $t1 = Time::HiRes::time;
		575	my $data = $process->(\@data);
		576	my $t2 = Time::HiRes::time;
		577
		578	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		579
		580	db_put cache => "$id/data", $data;
		581	db_put cache => "$id/md5" , $md5;
		582	db_put cache => "$id/meta", $meta;
		583
		584	return $data;
		585	}
		586
		587	db_get cache => "$id/data"
		588	}
		589
		590	=item cf::datalog type => key => value, ...
		591
		592	Log a datalog packet of the given type with the given key-value pairs.
		593
		594	=cut
		595
		596	sub datalog($@) {
		597	my ($type, %kv) = @_;
		598	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	599	}
272		600
273	=back	601	=back
274		602
275	=cut	603	=cut
276
277	#############################################################################
278
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386		604
387	#############################################################################	605	#############################################################################
388		606
389	=head2 ATTACHABLE OBJECTS	607	=head2 ATTACHABLE OBJECTS
390		608
…		…
392	attach callbacks/event handlers (a collection of which is called an "attachment")	610	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
394		612
395	In the following description, CLASS can be any of C<global>, C<object>	613	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	614	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	615	Crossfire TRT).
398		616
399	=over 4	617	=over 4
400		618
401	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
402		620
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	734	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	735	our @CB_MAP = ();
518		736
519	my %attachment;	737	my %attachment;
520		738
		739	sub cf::attachable::thawer_merge {
		740	# simply override everything except _meta
		741	local $_[0]{_meta};
		742	%{$_[0]} = %{$_[1]};
		743	}
		744
521	sub _attach_cb($$$$) {	745	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	746	my ($registry, $event, $prio, $cb) = @_;
523		747
524	use sort 'stable';	748	use sort 'stable';
525		749
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
560		784
561	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		789
566	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	791	my $pkg = shift @arg;
568		792
569	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
599	}	823	}
600		824
601	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
602	} else {	826	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	828	}
605		829
606	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
607	}	831	}
608		832
…		…
610	if (ref $_[0]) {	834	if (ref $_[0]) {
611	_object_attach @_;	835	_object_attach @_;
612	} else {	836	} else {
613	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
614	}	838	}
		839	_recalc_want;
615	};	840	};
616		841
617	# all those should be optimised	842	# all those should be optimised
618	sub cf::attachable::detach {	843	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
623	reattach ($obj);	848	reattach ($obj);
624	} else {	849	} else {
625	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
626	}	851	}
		852	_recalc_want;
627	};	853	};
628		854
629	sub cf::attachable::attached {	855	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
631		857
…		…
646	";	872	";
647	die if $@;	873	die if $@;
648	}	874	}
649		875
650	our $override;	876	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	877	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		878
653	sub override {	879	sub override {
654	$override = 1;	880	$override = 1;
655	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
656	}	882	}
657		883
658	sub do_invoke {	884	sub do_invoke {
659	my $event = shift;	885	my $event = shift;
660	my $callbacks = shift;	886	my $callbacks = shift;
661		887
662	@invoke_results = ();	888	@INVOKE_RESULTS = ();
663		889
664	local $override;	890	local $override;
665		891
666	for (@$callbacks) {	892	for (@$callbacks) {
667	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
684		910
685	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
686		912
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	913	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	914	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		916
691	=back	917	=back
692		918
693	=cut	919	=cut
694		920
…		…
696	# object support	922	# object support
697		923
698	sub reattach {	924	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	925	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	926	my ($obj) = @_;
		927
		928	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		929
702	my $registry = $obj->registry;	930	my $registry = $obj->registry;
703		931
704	@$registry = ();	932	@$registry = ();
705		933
…		…
752	$filename, length $$rdata, scalar @$objs;	980	$filename, length $$rdata, scalar @$objs;
753		981
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	982	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	983	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	984	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	985	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	986	close $fh;
759		987
760	if (@$objs) {	988	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	989	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	990	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	991	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	992	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	993	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	994	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	995	aio_rename "$filename.pst~", "$filename.pst";
768	}	996	}
769	} else {	997	} else {
770	aio_unlink "$filename.pst";	998	aio_unlink "$filename.pst";
…		…
798	or return;	1026	or return;
799		1027
800	unless (aio_stat "$filename.pst") {	1028	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1029	(aio_load "$filename.pst", $av) >= 0
802	or return;	1030	or return;
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1031	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1032	}
805		1033
		1034	warn sprintf "loading %s (%d)\n",
		1035	$filename, length $data, scalar @{$av || []};
806	return ($data, $av);	1036	return ($data, $av);
807	}	1037	}
		1038
		1039	=head2 COMMAND CALLBACKS
		1040
		1041	=over 4
		1042
		1043	=cut
808		1044
809	#############################################################################	1045	#############################################################################
810	# command handling &c	1046	# command handling &c
811		1047
812	=item cf::register_command $name => \&callback($ob,$args);	1048	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1061	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1062	}
827		1063
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1064	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1065
830	Register a callbackf ro execution when the client sends an extcmd packet.	1066	Register a callback for execution when the client sends an (synchronous)
		1067	extcmd packet. Ext commands will be processed in the order they are
		1068	received by the server, like other user commands. The first argument is
		1069	the logged-in player. Ext commands can only be processed after a player
		1070	has logged in successfully.
831		1071
832	If the callback returns something, it is sent back as if reply was being	1072	If the callback returns something, it is sent back as if reply was being
833	called.	1073	called.
834		1074
		1075	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1076
		1077	Register a callback for execution when the client sends an (asynchronous)
		1078	exticmd packet. Exti commands are processed by the server as soon as they
		1079	are received, i.e. out of order w.r.t. other commands. The first argument
		1080	is a client socket. Exti commands can be received anytime, even before
		1081	log-in.
		1082
		1083	If the callback returns something, it is sent back as if reply was being
		1084	called.
		1085
835	=cut	1086	=cut
836		1087
837	sub register_extcmd {	1088	sub register_extcmd {
838	my ($name, $cb) = @_;	1089	my ($name, $cb) = @_;
839		1090
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1091	$EXTCMD{$name} = $cb;
		1092	}
		1093
		1094	sub register_exticmd {
		1095	my ($name, $cb) = @_;
		1096
		1097	$EXTICMD{$name} = $cb;
844	}	1098	}
845		1099
846	cf::player->attach (	1100	cf::player->attach (
847	on_command => sub {	1101	on_command => sub {
848	my ($pl, $name, $params) = @_;	1102	my ($pl, $name, $params) = @_;
…		…
857	cf::override;	1111	cf::override;
858	},	1112	},
859	on_extcmd => sub {	1113	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1114	my ($pl, $buf) = @_;
861		1115
862	my $msg = eval { from_json $buf };	1116	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1117
864	if (ref $msg) {	1118	if (ref $msg) {
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1119	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1120	if (my %reply = $cb->($pl, $msg)) {
867	$pl->ext_reply ($msg->{msgid}, %reply);	1121	$pl->ext_reply ($msg->{msgid}, %reply);
868	}	1122	}
869	}	1123	}
870	} else {	1124	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1125	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
873		1127
874	cf::override;	1128	cf::override;
875	},	1129	},
876	);	1130	);
877		1131
878	sub register {
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1132	sub load_extensions {
		1133	cf::sync_job {
		1134	my %todo;
		1135
		1136	for my $path (<$LIBDIR/*.ext>) {
		1137	next unless -r $path;
		1138
		1139	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1140	my $base = $1;
		1141	my $pkg = $1;
		1142	$pkg =~ s/[^[:word:]]/_/g;
		1143	$pkg = "ext::$pkg";
		1144
		1145	open my $fh, "<:utf8", $path
		1146	or die "$path: $!";
		1147
		1148	my $source = do { local $/; <$fh> };
		1149
		1150	my %ext = (
		1151	path => $path,
		1152	base => $base,
		1153	pkg => $pkg,
		1154	);
		1155
		1156	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1157	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1158
		1159	$ext{source} =
		1160	"package $pkg; use strict; use utf8;\n"
		1161	. "#line 1 \"$path\"\n{\n"
		1162	. $source
		1163	. "\n};\n1";
		1164
		1165	$todo{$base} = \%ext;
		1166	}
		1167
		1168	my %done;
		1169	while (%todo) {
		1170	my $progress;
		1171
		1172	while (my ($k, $v) = each %todo) {
		1173	for (split /,\s*/, $v->{meta}{depends}) {
		1174	goto skip
		1175	unless exists $done{$_};
		1176	}
		1177
		1178	warn "... loading '$k' into '$v->{pkg}'\n";
		1179
		1180	unless (eval $v->{source}) {
		1181	my $msg = $@ ? "$v->{path}: $@\n"
		1182	: "$v->{base}: extension inactive.\n";
		1183
		1184	if (exists $v->{meta}{mandatory}) {
		1185	warn $msg;
		1186	warn "mandatory extension failed to load, exiting.\n";
		1187	exit 1;
		1188	}
		1189
		1190	warn $msg;
		1191	}
		1192
		1193	$done{$k} = delete $todo{$k};
		1194	push @EXTS, $v->{pkg};
		1195	$progress = 1;
		1196	}
		1197
		1198	skip:
		1199	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1200	unless $progress;
		1201	}
		1202	};
		1203	}
		1204
		1205	#############################################################################
		1206
		1207	=back
		1208
		1209	=head2 CORE EXTENSIONS
		1210
		1211	Functions and methods that extend core crossfire objects.
		1212
		1213	=cut
		1214
		1215	package cf::player;
		1216
		1217	use Coro::AIO;
		1218
		1219	=head3 cf::player
		1220
		1221	=over 4
		1222
		1223	=item cf::player::find $login
		1224
		1225	Returns the given player object, loading it if necessary (might block).
		1226
		1227	=cut
		1228
		1229	sub playerdir($) {
		1230	"$PLAYERDIR/"
		1231	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1232	}
		1233
		1234	sub path($) {
		1235	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1236
		1237	(playerdir $login) . "/playerdata"
		1238	}
		1239
		1240	sub find_active($) {
		1241	$cf::PLAYER{$_[0]}
		1242	and $cf::PLAYER{$_[0]}->active
		1243	and $cf::PLAYER{$_[0]}
		1244	}
		1245
		1246	sub exists($) {
		1247	my ($login) = @_;
		1248
		1249	$cf::PLAYER{$login}
		1250	or cf::sync_job { !aio_stat path $login }
		1251	}
		1252
		1253	sub find($) {
		1254	return $cf::PLAYER{$_[0]} || do {
		1255	my $login = $_[0];
		1256
		1257	my $guard = cf::lock_acquire "user_find:$login";
		1258
		1259	$cf::PLAYER{$_[0]} || do {
		1260	# rename old playerfiles to new ones
		1261	#TODO: remove when no longer required
		1262	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1263	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1264	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1265	aio_unlink +(playerdir $login) . "/$login.pl";
		1266
		1267	my $pl = load_pl path $login
		1268	or return;
		1269	$cf::PLAYER{$login} = $pl
		1270	}
		1271	}
		1272	}
		1273
		1274	sub save($) {
		1275	my ($pl) = @_;
		1276
		1277	return if $pl->{deny_save};
		1278
		1279	my $path = path $pl;
		1280	my $guard = cf::lock_acquire "user_save:$path";
		1281
		1282	return if $pl->{deny_save};
		1283
		1284	aio_mkdir playerdir $pl, 0770;
		1285	$pl->{last_save} = $cf::RUNTIME;
		1286
		1287	$pl->save_pl ($path);
		1288	Coro::cede;
		1289	}
		1290
		1291	sub new($) {
		1292	my ($login) = @_;
		1293
		1294	my $self = create;
		1295
		1296	$self->ob->name ($login);
		1297	$self->{deny_save} = 1;
		1298
		1299	$cf::PLAYER{$login} = $self;
		1300
		1301	$self
		1302	}
		1303
		1304	=item $pl->quit_character
		1305
		1306	Nukes the player without looking back. If logged in, the connection will
		1307	be destroyed. May block for a long time.
		1308
		1309	=cut
		1310
		1311	sub quit_character {
		1312	my ($pl) = @_;
		1313
		1314	my $name = $pl->ob->name;
		1315
		1316	$pl->{deny_save} = 1;
		1317	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1318
		1319	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1320	$pl->deactivate;
		1321	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1322	$pl->ns->destroy if $pl->ns;
		1323
		1324	my $path = playerdir $pl;
		1325	my $temp = "$path~$cf::RUNTIME~deleting~";
		1326	aio_rename $path, $temp;
		1327	delete $cf::PLAYER{$pl->ob->name};
		1328	$pl->destroy;
		1329
		1330	my $prefix = qr<^~\Q$name\E/>;
		1331
		1332	# nuke player maps
		1333	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1334
		1335	IO::AIO::aio_rmtree $temp;
		1336	}
		1337
		1338	=item $pl->kick
		1339
		1340	Kicks a player out of the game. This destroys the connection.
		1341
		1342	=cut
		1343
		1344	sub kick {
		1345	my ($pl, $kicker) = @_;
		1346
		1347	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1348	$pl->killer ("kicked");
		1349	$pl->ns->destroy;
		1350	}
		1351
		1352	=item cf::player::list_logins
		1353
		1354	Returns am arrayref of all valid playernames in the system, can take a
		1355	while and may block, so not sync_job-capable, ever.
		1356
		1357	=cut
		1358
		1359	sub list_logins {
		1360	my $dirs = aio_readdir $PLAYERDIR
		1361	or return [];
		1362
		1363	my @logins;
		1364
		1365	for my $login (@$dirs) {
		1366	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1367	aio_read $fh, 0, 512, my $buf, 0 or next;
		1368	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1369
		1370	utf8::decode $login;
		1371	push @logins, $login;
		1372	}
		1373
		1374	\@logins
		1375	}
		1376
		1377	=item $player->maps
		1378
		1379	Returns an arrayref of map paths that are private for this
		1380	player. May block.
		1381
		1382	=cut
		1383
		1384	sub maps($) {
		1385	my ($pl) = @_;
		1386
		1387	$pl = ref $pl ? $pl->ob->name : $pl;
		1388
		1389	my $files = aio_readdir playerdir $pl
		1390	or return;
		1391
		1392	my @paths;
		1393
		1394	for (@$files) {
		1395	utf8::decode $_;
		1396	next if /\.(?:pl|pst)$/;
		1397	next unless /^$PATH_SEP/o;
		1398
		1399	push @paths, cf::map::normalise "~$pl/$_";
		1400	}
		1401
		1402	\@paths
		1403	}
		1404
		1405	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1406
		1407	Expand crossfire pod fragments into protocol xml.
		1408
		1409	=cut
		1410
		1411	sub expand_cfpod {
		1412	((my $self), (local $_)) = @_;
		1413
		1414	# escape & and <
		1415	s/&/&amp;/g;
		1416	s/(?<![BIUGH])</&lt;/g;
		1417
		1418	# this is buggy, it needs to properly take care of nested <'s
		1419
		1420	1 while
		1421	# replace B<>, I<>, U<> etc.
		1422	s/B<([^\>]*)>/<b>$1<\/b>/
		1423	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1424	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1425	# replace G<male|female> tags
		1426	|| s{G<([^>|]*)\|([^>]*)>}{
		1427	$self->gender ? $2 : $1
		1428	}ge
		1429	# replace H<hint text>
		1430	|| s{H<([^\>]*)>}
		1431	{
		1432	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1433	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1434	"")
		1435	[$self->{hintmode}]
		1436	}ge;
		1437
		1438	# create single paragraphs (very hackish)
		1439	s/(?<=\S)\n(?=\w)/ /g;
		1440
		1441	# compress some whitespace
		1442	s/\s+\n/\n/g; # ws line-ends
		1443	s/\n\n+/\n/g; # double lines
		1444	s/^\n+//; # beginning lines
		1445	s/\n+$//; # ending lines
		1446
		1447	$_
		1448	}
		1449
		1450	sub hintmode {
		1451	$_[0]{hintmode} = $_[1] if @_ > 1;
		1452	$_[0]{hintmode}
		1453	}
		1454
		1455	=item $player->ext_reply ($msgid, %msg)
		1456
		1457	Sends an ext reply to the player.
		1458
		1459	=cut
		1460
		1461	sub ext_reply($$%) {
		1462	my ($self, $id, %msg) = @_;
		1463
		1464	$msg{msgid} = $id;
		1465	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1466	}
		1467
		1468	=item $player->ext_event ($type, %msg)
		1469
		1470	Sends an ext event to the client.
		1471
		1472	=cut
		1473
		1474	sub ext_event($$%) {
		1475	my ($self, $type, %msg) = @_;
		1476
		1477	$self->ns->ext_event ($type, %msg);
		1478	}
		1479
		1480	=head3 cf::region
		1481
		1482	=over 4
		1483
		1484	=cut
		1485
		1486	package cf::region;
		1487
		1488	=item cf::region::find_by_path $path
		1489
		1490	Tries to decuce the likely region for a map knowing only its path.
		1491
		1492	=cut
		1493
		1494	sub find_by_path($) {
885	my ($path) = @_;	1495	my ($path) = @_;
886		1496
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1497	my ($match, $specificity);
888	my $base = $1;
889	my $pkg = $1;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892		1498
893	warn "loading '$path' into '$pkg'\n";	1499	for my $region (list) {
894		1500	if ($region->{match} && $path =~ $region->{match}) {
895	open my $fh, "<:utf8", $path	1501	($match, $specificity) = ($region, $region->specificity)
896	or die "$path: $!";	1502	if $region->specificity > $specificity;
897		1503	}
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }	1504	}
927		1505
928	# remove commands	1506	$match
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}
937	}
938
939	# remove extcmds
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}
953
954	sub load_extensions {
955	for my $ext (<$LIBDIR/*.ext>) {
956	next unless -r $ext;
957	eval {
958	load_extension $ext;
959	1
960	} or warn "$ext not loaded: $@";
961	}
962	}
963
964	#############################################################################
965	# load/save/clean perl data associated with a map
966
967	*cf::mapsupport::on_clean = sub {
968	my ($map) = @_;
969
970	my $path = $map->tmpname;
971	defined $path or return;
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}
984
985	# TODO: compatibility cruft, remove when no longer needed
986	cf::player->attach (
987	on_load => sub {
988	my ($pl, $path) = @_;
989
990	for my $o (all_objects $pl->ob) {
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {
992	$o->set_ob_key_value ("_perl_data");
993
994	%$o = %{ Storable::thaw pack "H*", $value };
995	}
996	}
997	},
998	);
999
1000	#############################################################################
1001
1002	=head2 CORE EXTENSIONS
1003
1004	Functions and methods that extend core crossfire objects.
1005
1006	=head3 cf::player
1007
1008	=over 4
1009
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut
1015
1016	sub cf::player::exists($) {
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)
1022
1023	Sends an ext reply to the player.
1024
1025	=cut
1026
1027	sub cf::player::ext_reply($$$%) {
1028	my ($self, $id, %msg) = @_;
1029
1030	$msg{msgid} = $id;
1031
1032	$self->send ("ext " . to_json \%msg);
1033	}	1507	}
1034		1508
1035	=back	1509	=back
1036
1037		1510
1038	=head3 cf::map	1511	=head3 cf::map
1039		1512
1040	=over 4	1513	=over 4
1041		1514
…		…
1044	package cf::map;	1517	package cf::map;
1045		1518
1046	use Fcntl;	1519	use Fcntl;
1047	use Coro::AIO;	1520	use Coro::AIO;
1048		1521
		1522	use overload
		1523	'""' => \&as_string,
		1524	fallback => 1;
		1525
1049	our $MAX_RESET = 7200;	1526	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1527	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1528
1054	sub generate_random_map {	1529	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1530	my ($self, $rmp) = @_;
1056
1057	# mit "rum" bekleckern, nicht	1531	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1532	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1533	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1534	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1535	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1536	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1537	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1538	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1539	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1540	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1541	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1542	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1543	(cf::region::find $rmp->{region}), $rmp->{custom}
		1544	)
		1545	}
		1546
		1547	=item cf::map->register ($regex, $prio)
		1548
		1549	Register a handler for the map path matching the given regex at the
		1550	givne priority (higher is better, built-in handlers have priority 0, the
		1551	default).
		1552
		1553	=cut
		1554
		1555	sub register {
		1556	my (undef, $regex, $prio) = @_;
		1557	my $pkg = caller;
		1558
		1559	no strict;
		1560	push @{"$pkg\::ISA"}, __PACKAGE__;
		1561
		1562	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1563	}
		1564
		1565	# also paths starting with '/'
		1566	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1567
		1568	sub thawer_merge {
		1569	my ($self, $merge) = @_;
		1570
		1571	# we have to keep some variables in memory intact
		1572	local $self->{path};
		1573	local $self->{load_path};
		1574
		1575	$self->SUPER::thawer_merge ($merge);
		1576	}
		1577
		1578	sub normalise {
		1579	my ($path, $base) = @_;
		1580
		1581	$path = "$path"; # make sure its a string
		1582
		1583	$path =~ s/\.map$//;
		1584
		1585	# map plan:
		1586	#
		1587	# /! non-realised random map exit (special hack!)
		1588	# {... are special paths that are not being touched
		1589	# ?xxx/... are special absolute paths
		1590	# ?random/... random maps
		1591	# /... normal maps
		1592	# ~user/... per-player map of a specific user
		1593
		1594	$path =~ s/$PATH_SEP/\//go;
		1595
		1596	# treat it as relative path if it starts with
		1597	# something that looks reasonable
		1598	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1599	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1600
		1601	$base =~ s{[^/]+/?$}{};
		1602	$path = "$base/$path";
		1603	}
		1604
		1605	for ($path) {
		1606	redo if s{//}{/};
		1607	redo if s{/\.?/}{/};
		1608	redo if s{/[^/]+/\.\./}{/};
		1609	}
		1610
		1611	$path
		1612	}
		1613
		1614	sub new_from_path {
		1615	my (undef, $path, $base) = @_;
		1616
		1617	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1618
		1619	$path = normalise $path, $base;
		1620
		1621	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1622	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1623	my $self = bless cf::map::new, $pkg;
		1624	$self->{path} = $path; $self->path ($path);
		1625	$self->init; # pass $1 etc.
		1626	return $self;
		1627	}
		1628	}
		1629
		1630	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1631	()
		1632	}
		1633
		1634	sub init {
		1635	my ($self) = @_;
		1636
		1637	$self
		1638	}
		1639
		1640	sub as_string {
		1641	my ($self) = @_;
		1642
		1643	"$self->{path}"
		1644	}
		1645
		1646	# the displayed name, this is a one way mapping
		1647	sub visible_name {
		1648	&as_string
		1649	}
		1650
		1651	# the original (read-only) location
		1652	sub load_path {
		1653	my ($self) = @_;
		1654
		1655	"$MAPDIR/$self->{path}.map"
		1656	}
		1657
		1658	# the temporary/swap location
		1659	sub save_path {
		1660	my ($self) = @_;
		1661
		1662	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1663	"$TMPDIR/$path.map"
		1664	}
		1665
		1666	# the unique path, undef == no special unique path
		1667	sub uniq_path {
		1668	my ($self) = @_;
		1669
		1670	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1671	"$UNIQUEDIR/$path"
1071	}	1672	}
1072		1673
1073	# and all this just because we cannot iterate over	1674	# and all this just because we cannot iterate over
1074	# all maps in C++...	1675	# all maps in C++...
1075	sub change_all_map_light {	1676	sub change_all_map_light {
1076	my ($change) = @_;	1677	my ($change) = @_;
1077		1678
1078	$_->change_map_light ($change) for values %cf::MAP;	1679	$_->change_map_light ($change)
		1680	for grep $_->outdoor, values %cf::MAP;
1079	}	1681	}
1080		1682
		1683	sub decay_objects {
		1684	my ($self) = @_;
		1685
		1686	return if $self->{deny_reset};
		1687
		1688	$self->do_decay_objects;
		1689	}
		1690
		1691	sub unlink_save {
		1692	my ($self) = @_;
		1693
		1694	utf8::encode (my $save = $self->save_path);
		1695	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1696	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1697	}
		1698
1081	sub try_load_header($) {	1699	sub load_header_from($) {
1082	my ($path) = @_;	1700	my ($self, $path) = @_;
1083		1701
1084	utf8::encode $path;	1702	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1703	#aio_open $path, O_RDONLY, 0
		1704	# or return;
		1705
		1706	$self->_load_header ($path)
1086	or return;	1707	or return;
1087		1708
1088	my $map = cf::map::new	1709	$self->{load_path} = $path;
		1710
		1711	1
		1712	}
		1713
		1714	sub load_header_orig {
		1715	my ($self) = @_;
		1716
		1717	$self->load_header_from ($self->load_path)
		1718	}
		1719
		1720	sub load_header_temp {
		1721	my ($self) = @_;
		1722
		1723	$self->load_header_from ($self->save_path)
		1724	}
		1725
		1726	sub prepare_temp {
		1727	my ($self) = @_;
		1728
		1729	$self->last_access ((delete $self->{last_access})
		1730	|| $cf::RUNTIME); #d#
		1731	# safety
		1732	$self->{instantiate_time} = $cf::RUNTIME
		1733	if $self->{instantiate_time} > $cf::RUNTIME;
		1734	}
		1735
		1736	sub prepare_orig {
		1737	my ($self) = @_;
		1738
		1739	$self->{load_original} = 1;
		1740	$self->{instantiate_time} = $cf::RUNTIME;
		1741	$self->last_access ($cf::RUNTIME);
		1742	$self->instantiate;
		1743	}
		1744
		1745	sub load_header {
		1746	my ($self) = @_;
		1747
		1748	if ($self->load_header_temp) {
		1749	$self->prepare_temp;
		1750	} else {
		1751	$self->load_header_orig
1089	or return;	1752	or return;
		1753	$self->prepare_orig;
		1754	}
1090		1755
1091	$map->load_header ($path)	1756	$self->{deny_reset} = 1
1092	or return;	1757	if $self->no_reset;
1093		1758
1094	$map->{load_path} = $path;	1759	$self->default_region (cf::region::find_by_path $self->{path})
1095	use Data::Dumper; warn Dumper $map;#d#	1760	unless $self->default_region;
1096		1761
1097	$map	1762	1
1098	}	1763	}
1099		1764
		1765	sub find;
1100	sub find_map {	1766	sub find {
1101	my ($path, $origin) = @_;	1767	my ($path, $origin) = @_;
1102		1768
1103	#warn "find_map<$path,$origin>\n";#d#	1769	$path = normalise $path, $origin && $origin->path;
1104		1770
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	1771	cf::lock_wait "map_find:$path";
1106	my $key = $path->as_string;
1107		1772
1108	$cf::MAP{$key} || do {	1773	$cf::MAP{$path} || do {
1109	# do it the slow way	1774	my $guard = cf::lock_acquire "map_find:$path";
1110	my $map = try_load_header $path->save_path;	1775	my $map = new_from_path cf::map $path
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	1776	or return;
1124		1777
1125	$map->{instantiate_time} = $cf::RUNTIME;
1126	$map->instantiate;
1127
1128	# per-player maps become, after loading, normal maps
1129	$map->per_player (0) if $path->{user_rel};
1130	}
1131
1132	$map->path ($key);
1133	$map->{path} = $path;
1134	$map->last_access ($cf::RUNTIME);	1778	$map->{last_save} = $cf::RUNTIME;
1135		1779
1136	$map->reset if $map->should_reset;	1780	$map->load_header
		1781	or return;
1137		1782
		1783	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1784	# doing this can freeze the server in a sync job, obviously
		1785	#$cf::WAIT_FOR_TICK->wait;
		1786	$map->reset;
		1787	undef $guard;
		1788	return find $path;
		1789	}
		1790
1138	$cf::MAP{$key} = $map	1791	$cf::MAP{$path} = $map
1139	}	1792	}
1140	}	1793	}
		1794
		1795	sub pre_load { }
		1796	sub post_load { }
1141		1797
1142	sub load {	1798	sub load {
1143	my ($self) = @_;	1799	my ($self) = @_;
1144		1800
1145	return if $self->in_memory != cf::MAP_SWAPPED;	1801	local $self->{deny_reset} = 1; # loading can take a long time
1146
1147	$self->in_memory (cf::MAP_LOADING);
1148		1802
1149	my $path = $self->{path};	1803	my $path = $self->{path};
1150		1804
		1805	{
		1806	my $guard = cf::lock_acquire "map_load:$path";
		1807
		1808	return if $self->in_memory != cf::MAP_SWAPPED;
		1809
		1810	$self->in_memory (cf::MAP_LOADING);
		1811
1151	$self->alloc;	1812	$self->alloc;
		1813
		1814	$self->pre_load;
		1815	Coro::cede;
		1816
1152	$self->load_objects ($self->{load_path}, 1)	1817	$self->_load_objects ($self->{load_path}, 1)
1153	or return;	1818	or return;
1154		1819
		1820	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1821	if delete $self->{load_original};
		1822
1155	if (my $uniq = $path->uniq_path) {	1823	if (my $uniq = $self->uniq_path) {
1156	utf8::encode $uniq;	1824	utf8::encode $uniq;
1157	if (aio_open $uniq, O_RDONLY, 0) {	1825	if (aio_open $uniq, O_RDONLY, 0) {
1158	$self->clear_unique_items;	1826	$self->clear_unique_items;
1159	$self->load_objects ($uniq, 0);	1827	$self->_load_objects ($uniq, 0);
1160	}	1828	}
1161	}	1829	}
1162		1830
		1831	Coro::cede;
1163	# now do the right thing for maps	1832	# now do the right thing for maps
1164	$self->link_multipart_objects;	1833	$self->link_multipart_objects;
1165
1166	if ($self->{path}->is_style_map) {
1167	$self->{deny_save} = 1;
1168	$self->{deny_reset} = 1;
1169	} else {
1170	$self->fix_auto_apply;
1171	$self->decay_objects;
1172	$self->update_buttons;
1173	$self->set_darkness_map;
1174	$self->difficulty ($self->estimate_difficulty)	1834	$self->difficulty ($self->estimate_difficulty)
1175	unless $self->difficulty;	1835	unless $self->difficulty;
		1836	Coro::cede;
		1837
		1838	unless ($self->{deny_activate}) {
		1839	$self->decay_objects;
		1840	$self->fix_auto_apply;
		1841	$self->update_buttons;
		1842	Coro::cede;
		1843	$self->set_darkness_map;
		1844	Coro::cede;
1176	$self->activate;	1845	$self->activate;
1177	}	1846	}
1178		1847
1179	$self->in_memory (cf::MAP_IN_MEMORY);	1848	$self->in_memory (cf::MAP_IN_MEMORY);
1180	}	1849	}
1181		1850
1182	sub load_map_sync {	1851	$self->post_load;
		1852	}
		1853
		1854	sub customise_for {
		1855	my ($self, $ob) = @_;
		1856
		1857	return find "~" . $ob->name . "/" . $self->{path}
		1858	if $self->per_player;
		1859
		1860	# return find "?party/" . $ob->name . "/" . $self->{path}
		1861	# if $self->per_party;
		1862
		1863	$self
		1864	}
		1865
		1866	# find and load all maps in the 3x3 area around a map
		1867	sub load_diag {
		1868	my ($map) = @_;
		1869
		1870	my @diag; # diagonal neighbours
		1871
		1872	for (0 .. 3) {
		1873	my $neigh = $map->tile_path ($_)
		1874	or next;
		1875	$neigh = find $neigh, $map
		1876	or next;
		1877	$neigh->load;
		1878
		1879	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1880	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1881	}
		1882
		1883	for (@diag) {
		1884	my $neigh = find @$_
		1885	or next;
		1886	$neigh->load;
		1887	}
		1888	}
		1889
		1890	sub find_sync {
1183	my ($path, $origin) = @_;	1891	my ($path, $origin) = @_;
1184		1892
1185	#warn "load_map_sync<$path, $origin>\n";#d#	1893	cf::sync_job { find $path, $origin }
		1894	}
1186		1895
1187	cf::sync_job {	1896	sub do_load_sync {
1188	my $map = cf::map::find_map $path, $origin	1897	my ($map) = @_;
1189	or return;	1898
		1899	cf::sync_job { $map->load };
		1900	}
		1901
		1902	our %MAP_PREFETCH;
		1903	our $MAP_PREFETCHER = undef;
		1904
		1905	sub find_async {
		1906	my ($path, $origin) = @_;
		1907
		1908	$path = normalise $path, $origin && $origin->{path};
		1909
		1910	if (my $map = $cf::MAP{$path}) {
		1911	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1912	}
		1913
		1914	undef $MAP_PREFETCH{$path};
		1915	$MAP_PREFETCHER ||= cf::async {
		1916	while (%MAP_PREFETCH) {
		1917	for my $path (keys %MAP_PREFETCH) {
		1918	if (my $map = find $path) {
1190	$map->load;	1919	$map->load;
1191	$map	1920	}
		1921
		1922	delete $MAP_PREFETCH{$path};
		1923	}
		1924	}
		1925	undef $MAP_PREFETCHER;
1192	}	1926	};
		1927	$MAP_PREFETCHER->prio (6);
		1928
		1929	()
1193	}	1930	}
1194		1931
1195	sub save {	1932	sub save {
1196	my ($self) = @_;	1933	my ($self) = @_;
1197		1934
1198	my $save = $self->{path}->save_path; utf8::encode $save;	1935	my $lock = cf::lock_acquire "map_data:" . $self->path;
1199	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1200		1936
1201	$self->{last_save} = $cf::RUNTIME;	1937	$self->{last_save} = $cf::RUNTIME;
1202		1938
1203	return unless $self->dirty;	1939	return unless $self->dirty;
1204		1940
		1941	my $save = $self->save_path; utf8::encode $save;
		1942	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1943
1205	$self->{load_path} = $save;	1944	$self->{load_path} = $save;
1206		1945
1207	return if $self->{deny_save};	1946	return if $self->{deny_save};
1208		1947
1209	warn "saving map ", $self->path;	1948	local $self->{last_access} = $self->last_access;#d#
		1949
		1950	cf::async {
		1951	$_->contr->save for $self->players;
		1952	};
1210		1953
1211	if ($uniq) {	1954	if ($uniq) {
1212	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1955	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1213	$self->save_objects ($uniq, cf::IO_UNIQUES);	1956	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1214	} else {	1957	} else {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1958	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1216	}	1959	}
1217	}	1960	}
1218		1961
1219	sub swap_out {	1962	sub swap_out {
1220	my ($self) = @_;	1963	my ($self) = @_;
		1964
		1965	# save first because save cedes
		1966	$self->save;
		1967
		1968	my $lock = cf::lock_acquire "map_data:" . $self->path;
1221		1969
1222	return if $self->players;	1970	return if $self->players;
1223	return if $self->in_memory != cf::MAP_IN_MEMORY;	1971	return if $self->in_memory != cf::MAP_IN_MEMORY;
1224	return if $self->{deny_save};	1972	return if $self->{deny_save};
1225		1973
1226	$self->save;
1227	$self->clear;	1974	$self->clear;
1228	$self->in_memory (cf::MAP_SWAPPED);	1975	$self->in_memory (cf::MAP_SWAPPED);
1229	}	1976	}
1230		1977
		1978	sub reset_at {
		1979	my ($self) = @_;
		1980
		1981	# TODO: safety, remove and allow resettable per-player maps
		1982	return 1e99 if $self->{deny_reset};
		1983
		1984	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		1985	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		1986
		1987	$time + $to
		1988	}
		1989
1231	sub should_reset {	1990	sub should_reset {
1232	my ($map) = @_;	1991	my ($self) = @_;
1233		1992
1234	# TODO: safety, remove and allow resettable per-player maps	1993	$self->reset_at <= $cf::RUNTIME
1235	return if $map->{path}{user_rel};#d#
1236	return if $map->{deny_reset};
1237	#return unless $map->reset_timeout;
1238
1239	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1240
1241	$time + ($map->reset_timeout || $DEFAULT_RESET) < $cf::RUNTIME
1242	}	1994	}
1243		1995
1244	sub reset {	1996	sub reset {
1245	my ($self) = @_;	1997	my ($self) = @_;
1246		1998
		1999	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2000
1247	return if $self->players;	2001	return if $self->players;
1248	return if $self->{path}{user_rel};#d#
1249		2002
1250	warn "resetting map ", $self->path;#d#	2003	warn "resetting map ", $self->path;
1251		2004
1252	utf8::encode (my $save = $self->{path}->save_path);	2005	$self->in_memory (cf::MAP_SWAPPED);
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;	2006
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";	2007	# need to save uniques path
		2008	unless ($self->{deny_save}) {
		2009	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2010
		2011	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2012	if $uniq;
		2013	}
		2014
		2015	delete $cf::MAP{$self->path};
		2016
		2017	$self->clear;
1255		2018
1256	$_->clear_links_to ($self) for values %cf::MAP;	2019	$_->clear_links_to ($self) for values %cf::MAP;
1257		2020
		2021	$self->unlink_save;
1258	$self->clear;	2022	$self->destroy;
1259	$self->in_memory (cf::MAP_SWAPPED);
1260	utf8::encode ($self->{load_path} = $self->{path}->load_path);
1261	}	2023	}
1262		2024
1263	sub customise_for {	2025	my $nuke_counter = "aaaa";
1264	my ($map, $ob) = @_;
1265		2026
1266	if ($map->per_player) {	2027	sub nuke {
1267	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2028	my ($self) = @_;
		2029
		2030	delete $cf::MAP{$self->path};
		2031
		2032	$self->unlink_save;
		2033
		2034	bless $self, "cf::map";
		2035	delete $self->{deny_reset};
		2036	$self->{deny_save} = 1;
		2037	$self->reset_timeout (1);
		2038	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2039
		2040	$cf::MAP{$self->path} = $self;
		2041
		2042	$self->reset; # polite request, might not happen
		2043	}
		2044
		2045	=item $maps = cf::map::tmp_maps
		2046
		2047	Returns an arrayref with all map paths of currently instantiated and saved
		2048	maps. May block.
		2049
		2050	=cut
		2051
		2052	sub tmp_maps() {
1268	}	2053	[
1269		2054	map {
1270	$map	2055	utf8::decode $_;
		2056	/\.map$/
		2057	? normalise $_
		2058	: ()
		2059	} @{ aio_readdir $TMPDIR or [] }
		2060	]
1271	}	2061	}
1272		2062
1273	sub emergency_save {	2063	=item $maps = cf::map::random_maps
1274	local $cf::FREEZE = 1;
1275		2064
1276	warn "enter emergency map save\n";	2065	Returns an arrayref with all map paths of currently instantiated and saved
		2066	random maps. May block.
1277		2067
1278	cf::sync_job {	2068	=cut
1279	warn "begin emergency map save\n";
1280	$_->save for values %cf::MAP;
1281	};
1282		2069
1283	warn "end emergency map save\n";	2070	sub random_maps() {
		2071	[
		2072	map {
		2073	utf8::decode $_;
		2074	/\.map$/
		2075	? normalise "?random/$_"
		2076	: ()
		2077	} @{ aio_readdir $RANDOMDIR or [] }
		2078	]
		2079	}
		2080
		2081	=item cf::map::unique_maps
		2082
		2083	Returns an arrayref of paths of all shared maps that have
		2084	instantiated unique items. May block.
		2085
		2086	=cut
		2087
		2088	sub unique_maps() {
		2089	[
		2090	map {
		2091	utf8::decode $_;
		2092	/\.map$/
		2093	? normalise $_
		2094	: ()
		2095	} @{ aio_readdir $UNIQUEDIR or [] }
		2096	]
1284	}	2097	}
1285		2098
1286	package cf;	2099	package cf;
1287		2100
1288	=back	2101	=back
1289		2102
		2103	=head3 cf::object
		2104
		2105	=cut
		2106
		2107	package cf::object;
		2108
		2109	=over 4
		2110
		2111	=item $ob->inv_recursive
		2112
		2113	Returns the inventory of the object _and_ their inventories, recursively.
		2114
		2115	=cut
		2116
		2117	sub inv_recursive_;
		2118	sub inv_recursive_ {
		2119	map { $_, inv_recursive_ $_->inv } @_
		2120	}
		2121
		2122	sub inv_recursive {
		2123	inv_recursive_ inv $_[0]
		2124	}
		2125
		2126	package cf;
		2127
		2128	=back
1290		2129
1291	=head3 cf::object::player	2130	=head3 cf::object::player
1292		2131
1293	=over 4	2132	=over 4
1294		2133
…		…
1308		2147
1309	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2148	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1310		2149
1311	if ($self->{record_replies}) {	2150	if ($self->{record_replies}) {
1312	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2151	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2152
1313	} else {	2153	} else {
		2154	my $pl = $self->contr;
		2155
		2156	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2157	my $diag = $pl->{npc_dialog};
		2158	$diag->{pl}->ext_reply (
		2159	$diag->{id},
		2160	msgtype => "reply",
		2161	msg => $diag->{pl}->expand_cfpod ($msg),
		2162	add_topics => []
		2163	);
		2164
		2165	} else {
1314	$msg = $npc->name . " says: $msg" if $npc;	2166	$msg = $npc->name . " says: $msg" if $npc;
1315	$self->message ($msg, $flags);	2167	$self->message ($msg, $flags);
		2168	}
1316	}	2169	}
1317	}	2170	}
1318		2171
1319	=item $player_object->may ("access")	2172	=item $player_object->may ("access")
1320		2173
…		…
1330	(ref $cf::CFG{"may_$access"}	2183	(ref $cf::CFG{"may_$access"}
1331	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2184	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1332	: $cf::CFG{"may_$access"})	2185	: $cf::CFG{"may_$access"})
1333	}	2186	}
1334		2187
		2188	=item $player_object->enter_link
		2189
		2190	Freezes the player and moves him/her to a special map (C<{link}>).
		2191
		2192	The player should be reasonably safe there for short amounts of time. You
		2193	I<MUST> call C<leave_link> as soon as possible, though.
		2194
		2195	Will never block.
		2196
		2197	=item $player_object->leave_link ($map, $x, $y)
		2198
		2199	Moves the player out of the special C<{link}> map onto the specified
		2200	map. If the map is not valid (or omitted), the player will be moved back
		2201	to the location he/she was before the call to C<enter_link>, or, if that
		2202	fails, to the emergency map position.
		2203
		2204	Might block.
		2205
		2206	=cut
		2207
		2208	sub link_map {
		2209	unless ($LINK_MAP) {
		2210	$LINK_MAP = cf::map::find "{link}"
		2211	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2212	$LINK_MAP->load;
		2213	}
		2214
		2215	$LINK_MAP
		2216	}
		2217
1335	sub cf::object::player::enter_link {	2218	sub cf::object::player::enter_link {
1336	my ($self) = @_;	2219	my ($self) = @_;
1337		2220
1338	return if $self->map == $LINK_MAP;
1339
1340	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1341	if $self->map;
1342
1343	$self->enter_map ($LINK_MAP, 20, 20);
1344	$self->deactivate_recursive;	2221	$self->deactivate_recursive;
		2222
		2223	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2224
		2225	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2226	if $self->map && $self->map->{path} ne "{link}";
		2227
		2228	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1345	}	2229	}
1346		2230
1347	sub cf::object::player::leave_link {	2231	sub cf::object::player::leave_link {
1348	my ($self, $map, $x, $y) = @_;	2232	my ($self, $map, $x, $y) = @_;
1349		2233
		2234	return unless $self->contr->active;
		2235
1350	my $link_pos = delete $self->{_link_pos};	2236	my $link_pos = delete $self->{_link_pos};
1351		2237
1352	unless ($map) {	2238	unless ($map) {
1353	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1354
1355	# restore original map position	2239	# restore original map position
1356	($map, $x, $y) = @{ $link_pos || [] };	2240	($map, $x, $y) = @{ $link_pos || [] };
1357	$map = cf::map::find_map $map;	2241	$map = cf::map::find $map;
1358		2242
1359	unless ($map) {	2243	unless ($map) {
1360	($map, $x, $y) = @$EMERGENCY_POSITION;	2244	($map, $x, $y) = @$EMERGENCY_POSITION;
1361	$map = cf::map::find_map $map	2245	$map = cf::map::find $map
1362	or die "FATAL: cannot load emergency map\n";	2246	or die "FATAL: cannot load emergency map\n";
1363	}	2247	}
1364	}	2248	}
1365		2249
1366	($x, $y) = (-1, -1)	2250	($x, $y) = (-1, -1)
…		…
1369	# use -1 or undef as default coordinates, not 0, 0	2253	# use -1 or undef as default coordinates, not 0, 0
1370	($x, $y) = ($map->enter_x, $map->enter_y)	2254	($x, $y) = ($map->enter_x, $map->enter_y)
1371	if $x <=0 && $y <= 0;	2255	if $x <=0 && $y <= 0;
1372		2256
1373	$map->load;	2257	$map->load;
		2258	$map->load_diag;
1374		2259
		2260	return unless $self->contr->active;
1375	$self->activate_recursive;	2261	$self->activate_recursive;
		2262
		2263	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1376	$self->enter_map ($map, $x, $y);	2264	$self->enter_map ($map, $x, $y);
1377	}	2265	}
1378		2266
1379	=item $player_object->goto_map ($map, $x, $y)	2267	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1380		2268
1381	=cut	2269	Moves the player to the given map-path and coordinates by first freezing
		2270	her, loading and preparing them map, calling the provided $check callback
		2271	that has to return the map if sucecssful, and then unfreezes the player on
		2272	the new (success) or old (failed) map position. In either case, $done will
		2273	be called at the end of this process.
1382		2274
		2275	=cut
		2276
		2277	our $GOTOGEN;
		2278
1383	sub cf::object::player::goto_map {	2279	sub cf::object::player::goto {
1384	my ($self, $path, $x, $y) = @_;	2280	my ($self, $path, $x, $y, $check, $done) = @_;
		2281
		2282	# do generation counting so two concurrent goto's will be executed in-order
		2283	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1385		2284
1386	$self->enter_link;	2285	$self->enter_link;
1387		2286
1388	(Coro::async {	2287	(async {
1389	$path = new cf::path $path;	2288	my $map = eval {
1390
1391	my $map = cf::map::find_map $path->as_string;	2289	my $map = cf::map::find $path;
		2290
		2291	if ($map) {
1392	$map = $map->customise_for ($self) if $map;	2292	$map = $map->customise_for ($self);
		2293	$map = $check->($map) if $check && $map;
		2294	} else {
		2295	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2296	}
1393		2297
1394	warn "entering ", $map->path, " at ($x, $y)\n"
1395	if $map;	2298	$map
		2299	};
1396		2300
		2301	if ($@) {
		2302	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2303	LOG llevError | logBacktrace, Carp::longmess $@;
		2304	}
		2305
		2306	if ($gen == $self->{_goto_generation}) {
		2307	delete $self->{_goto_generation};
1397	$self->leave_link ($map, $x, $y);	2308	$self->leave_link ($map, $x, $y);
		2309	}
		2310
		2311	$done->() if $done;
1398	})->prio (1);	2312	})->prio (1);
1399	}	2313	}
1400		2314
1401	=item $player_object->enter_exit ($exit_object)	2315	=item $player_object->enter_exit ($exit_object)
1402		2316
…		…
1404		2318
1405	sub parse_random_map_params {	2319	sub parse_random_map_params {
1406	my ($spec) = @_;	2320	my ($spec) = @_;
1407		2321
1408	my $rmp = { # defaults	2322	my $rmp = { # defaults
1409	xsize => 10,	2323	xsize => (cf::rndm 15, 40),
1410	ysize => 10,	2324	ysize => (cf::rndm 15, 40),
		2325	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2326	#layout => string,
1411	};	2327	};
1412		2328
1413	for (split /\n/, $spec) {	2329	for (split /\n/, $spec) {
1414	my ($k, $v) = split /\s+/, $_, 2;	2330	my ($k, $v) = split /\s+/, $_, 2;
1415		2331
…		…
1419	$rmp	2335	$rmp
1420	}	2336	}
1421		2337
1422	sub prepare_random_map {	2338	sub prepare_random_map {
1423	my ($exit) = @_;	2339	my ($exit) = @_;
		2340
		2341	my $guard = cf::lock_acquire "exit_prepare:$exit";
1424		2342
1425	# all this does is basically replace the /! path by	2343	# all this does is basically replace the /! path by
1426	# a new random map path (?random/...) with a seed	2344	# a new random map path (?random/...) with a seed
1427	# that depends on the exit object	2345	# that depends on the exit object
1428		2346
1429	my $rmp = parse_random_map_params $exit->msg;	2347	my $rmp = parse_random_map_params $exit->msg;
1430		2348
1431	if ($exit->map) {	2349	if ($exit->map) {
1432	$rmp->{region} = $exit->map->region_name;	2350	$rmp->{region} = $exit->region->name;
1433	$rmp->{origin_map} = $exit->map->path;	2351	$rmp->{origin_map} = $exit->map->path;
1434	$rmp->{origin_x} = $exit->x;	2352	$rmp->{origin_x} = $exit->x;
1435	$rmp->{origin_y} = $exit->y;	2353	$rmp->{origin_y} = $exit->y;
1436	}	2354	}
1437		2355
1438	$rmp->{random_seed} ||= $exit->random_seed;	2356	$rmp->{random_seed} ||= $exit->random_seed;
1439		2357
1440	my $data = cf::to_json $rmp;	2358	my $data = cf::to_json $rmp;
1441	my $md5 = Digest::MD5::md5_hex $data;	2359	my $md5 = Digest::MD5::md5_hex $data;
		2360	my $meta = "$RANDOMDIR/$md5.meta";
1442		2361
1443	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2362	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1444	aio_write $fh, 0, (length $data), $data, 0;	2363	aio_write $fh, 0, (length $data), $data, 0;
		2364	undef $fh;
		2365	aio_rename "$meta~", $meta;
1445		2366
1446	$exit->slaying ("?random/$md5");	2367	$exit->slaying ("?random/$md5");
1447	$exit->msg (undef);	2368	$exit->msg (undef);
1448	}	2369	}
1449	}	2370	}
…		…
1451	sub cf::object::player::enter_exit {	2372	sub cf::object::player::enter_exit {
1452	my ($self, $exit) = @_;	2373	my ($self, $exit) = @_;
1453		2374
1454	return unless $self->type == cf::PLAYER;	2375	return unless $self->type == cf::PLAYER;
1455		2376
		2377	if ($exit->slaying eq "/!") {
		2378	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2379	# the problem is that $exit might not survive long enough
		2380	# so it needs to be done right now, right here
		2381	cf::sync_job { prepare_random_map $exit };
		2382	}
		2383
		2384	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2385	my $hp = $exit->stats->hp;
		2386	my $sp = $exit->stats->sp;
		2387
1456	$self->enter_link;	2388	$self->enter_link;
1457		2389
		2390	# if exit is damned, update players death & WoR home-position
		2391	$self->contr->savebed ($slaying, $hp, $sp)
		2392	if $exit->flag (FLAG_DAMNED);
		2393
1458	(Coro::async {	2394	(async {
		2395	$self->deactivate_recursive; # just to be sure
1459	unless (eval {	2396	unless (eval {
1460		2397	$self->goto ($slaying, $hp, $sp);
1461	prepare_random_map $exit
1462	if $exit->slaying eq "/!";
1463
1464	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1465	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1466		2398
1467	1;	2399	1;
1468	}) {	2400	}) {
1469	$self->message ("Something went wrong deep within the crossfire server. "	2401	$self->message ("Something went wrong deep within the crossfire server. "
1470	. "I'll try to bring you back to the map you were before. "	2402	. "I'll try to bring you back to the map you were before. "
1471	. "Please report this to the dungeon master",	2403	. "Please report this to the dungeon master!",
1472	cf::NDI_UNIQUE | cf::NDI_RED);	2404	cf::NDI_UNIQUE | cf::NDI_RED);
1473		2405
1474	warn "ERROR in enter_exit: $@";	2406	warn "ERROR in enter_exit: $@";
1475	$self->leave_link;	2407	$self->leave_link;
1476	}	2408	}
1477	})->prio (1);	2409	})->prio (1);
…		…
1490		2422
1491	sub cf::client::send_drawinfo {	2423	sub cf::client::send_drawinfo {
1492	my ($self, $text, $flags) = @_;	2424	my ($self, $text, $flags) = @_;
1493		2425
1494	utf8::encode $text;	2426	utf8::encode $text;
1495	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2427	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1496	}	2428	}
1497		2429
		2430	=item $client->send_msg ($color, $type, $msg, [extra...])
		2431
		2432	Send a drawinfo or msg packet to the client, formatting the msg for the
		2433	client if neccessary. C<$type> should be a string identifying the type of
		2434	the message, with C<log> being the default. If C<$color> is negative, suppress
		2435	the message unless the client supports the msg packet.
		2436
		2437	=cut
		2438
		2439	sub cf::client::send_msg {
		2440	my ($self, $color, $type, $msg, @extra) = @_;
		2441
		2442	$msg = $self->pl->expand_cfpod ($msg);
		2443
		2444	return unless @extra || length $msg;
		2445
		2446	if ($self->can_msg) {
		2447	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $type, $msg, @extra]));
		2448	} else {
		2449	# replace some tags by gcfclient-compatible ones
		2450	for ($msg) {
		2451	1 while
		2452	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2453	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2454	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2455	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2456	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2457	}
		2458
		2459	if ($color >= 0) {
		2460	if (0 && $msg =~ /\[/) {
		2461	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2462	} else {
		2463	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2464	$self->send_packet ("drawinfo $color $msg")
		2465	}
		2466	}
		2467	}
		2468	}
		2469
		2470	=item $client->ext_event ($type, %msg)
		2471
		2472	Sends an ext event to the client.
		2473
		2474	=cut
		2475
		2476	sub cf::client::ext_event($$%) {
		2477	my ($self, $type, %msg) = @_;
		2478
		2479	return unless $self->extcmd;
		2480
		2481	$msg{msgtype} = "event_$type";
		2482	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2483	}
1498		2484
1499	=item $success = $client->query ($flags, "text", \&cb)	2485	=item $success = $client->query ($flags, "text", \&cb)
1500		2486
1501	Queues a query to the client, calling the given callback with	2487	Queues a query to the client, calling the given callback with
1502	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2488	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1503	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2489	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1504		2490
1505	Queries can fail, so check the return code. Or don't, as queries will become	2491	Queries can fail, so check the return code. Or don't, as queries will
1506	reliable at some point in the future.	2492	become reliable at some point in the future.
1507		2493
1508	=cut	2494	=cut
1509		2495
1510	sub cf::client::query {	2496	sub cf::client::query {
1511	my ($self, $flags, $text, $cb) = @_;	2497	my ($self, $flags, $text, $cb) = @_;
…		…
1519	utf8::encode $text;	2505	utf8::encode $text;
1520	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2506	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1521		2507
1522	$self->send_packet ($self->{query_queue}[0][0])	2508	$self->send_packet ($self->{query_queue}[0][0])
1523	if @{ $self->{query_queue} } == 1;	2509	if @{ $self->{query_queue} } == 1;
		2510
		2511	1
1524	}	2512	}
1525		2513
1526	cf::client->attach (	2514	cf::client->attach (
		2515	on_connect => sub {
		2516	my ($ns) = @_;
		2517
		2518	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2519	},
1527	on_reply => sub {	2520	on_reply => sub {
1528	my ($ns, $msg) = @_;	2521	my ($ns, $msg) = @_;
1529		2522
1530	# this weird shuffling is so that direct followup queries	2523	# this weird shuffling is so that direct followup queries
1531	# get handled first	2524	# get handled first
1532	my $queue = delete $ns->{query_queue};	2525	my $queue = delete $ns->{query_queue}
		2526	or return; # be conservative, not sure how that can happen, but we saw a crash here
1533		2527
1534	(shift @$queue)->[1]->($msg);	2528	(shift @$queue)->[1]->($msg);
		2529	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1535		2530
1536	push @{ $ns->{query_queue} }, @$queue;	2531	push @{ $ns->{query_queue} }, @$queue;
1537		2532
1538	if (@{ $ns->{query_queue} } == @$queue) {	2533	if (@{ $ns->{query_queue} } == @$queue) {
1539	if (@$queue) {	2534	if (@$queue) {
…		…
1541	} else {	2536	} else {
1542	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2537	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1543	}	2538	}
1544	}	2539	}
1545	},	2540	},
		2541	on_exticmd => sub {
		2542	my ($ns, $buf) = @_;
		2543
		2544	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2545
		2546	if (ref $msg) {
		2547	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2548	if (my %reply = $cb->($ns, $msg)) {
		2549	$reply{msgid} = $msg->{msgid};
		2550	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2551	}
		2552	}
		2553	} else {
		2554	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2555	}
		2556
		2557	cf::override;
		2558	},
1546	);	2559	);
1547		2560
1548	=item $client->coro (\&cb)	2561	=item $client->async (\&cb)
1549		2562
1550	Create a new coroutine, running the specified callback. The coroutine will	2563	Create a new coroutine, running the specified callback. The coroutine will
1551	be automatically cancelled when the client gets destroyed (e.g. on logout,	2564	be automatically cancelled when the client gets destroyed (e.g. on logout,
1552	or loss of connection).	2565	or loss of connection).
1553		2566
1554	=cut	2567	=cut
1555		2568
1556	sub cf::client::coro {	2569	sub cf::client::async {
1557	my ($self, $cb) = @_;	2570	my ($self, $cb) = @_;
1558		2571
1559	my $coro; $coro = async {	2572	my $coro = &Coro::async ($cb);
1560	eval {
1561	$cb->();
1562	};
1563	warn $@ if $@;
1564	};
1565		2573
1566	$coro->on_destroy (sub {	2574	$coro->on_destroy (sub {
1567	delete $self->{_coro}{$coro+0};	2575	delete $self->{_coro}{$coro+0};
1568	});	2576	});
1569		2577
…		…
1602		2610
1603	# here we export the classes and methods available to script code	2611	# here we export the classes and methods available to script code
1604		2612
1605	=pod	2613	=pod
1606		2614
1607	The following fucntions and emthods are available within a safe environment:	2615	The following functions and methods are available within a safe environment:
1608		2616
1609	cf::object contr pay_amount pay_player map	2617	cf::object
		2618	contr pay_amount pay_player map x y force_find force_add
		2619	insert remove
		2620
1610	cf::object::player player	2621	cf::object::player
1611	cf::player peaceful	2622	player
1612	cf::map trigger	2623
		2624	cf::player
		2625	peaceful
		2626
		2627	cf::map
		2628	trigger
1613		2629
1614	=cut	2630	=cut
1615		2631
1616	for (	2632	for (
1617	["cf::object" => qw(contr pay_amount pay_player map)],	2633	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2634	insert remove)],
1618	["cf::object::player" => qw(player)],	2635	["cf::object::player" => qw(player)],
1619	["cf::player" => qw(peaceful)],	2636	["cf::player" => qw(peaceful)],
1620	["cf::map" => qw(trigger)],	2637	["cf::map" => qw(trigger)],
1621	) {	2638	) {
1622	no strict 'refs';	2639	no strict 'refs';
…		…
1693	=back	2710	=back
1694		2711
1695	=cut	2712	=cut
1696		2713
1697	#############################################################################	2714	#############################################################################
		2715	# the server's init and main functions
1698		2716
1699	=head2 EXTENSION DATABASE SUPPORT	2717	sub load_facedata($) {
		2718	my ($path) = @_;
1700		2719
1701	Crossfire maintains a very simple database for extension use. It can	2720	warn "loading facedata from $path\n";
1702	currently store anything that can be serialised using Storable, which
1703	excludes objects.
1704		2721
1705	The parameter C<$family> should best start with the name of the extension	2722	my $facedata;
1706	using it, it should be unique.	2723	0 < aio_load $path, $facedata
		2724	or die "$path: $!";
1707		2725
1708	=over 4	2726	$facedata = Coro::Storable::thaw $facedata;
1709		2727
1710	=item $hashref = cf::db_get $family	2728	$facedata->{version} == 2
		2729	or cf::cleanup "$path: version mismatch, cannot proceed.";
1711		2730
1712	Return a hashref for use by the extension C<$family>, which can be
1713	modified. After modifications, you have to call C<cf::db_dirty> or
1714	C<cf::db_sync>.
1715
1716	=item $value = cf::db_get $family => $key
1717
1718	Returns a single value from the database
1719
1720	=item cf::db_put $family => $hashref
1721
1722	Stores the given family hashref into the database. Updates are delayed, if
1723	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1724
1725	=item cf::db_put $family => $key => $value
1726
1727	Stores the given C<$value> in the family hash. Updates are delayed, if you
1728	want the data to be synced to disk immediately, use C<cf::db_sync>.
1729
1730	=item cf::db_dirty
1731
1732	Marks the database as dirty, to be updated at a later time.
1733
1734	=item cf::db_sync
1735
1736	Immediately write the database to disk I<if it is dirty>.
1737
1738	=cut
1739
1740	our $DB;
1741
1742	{
1743	my $path = cf::localdir . "/database.pst";
1744
1745	sub db_load() {
1746	warn "loading database $path\n";#d# remove later
1747	$DB = stat $path ? Storable::retrieve $path : { };
1748	}	2731	{
		2732	my $faces = $facedata->{faceinfo};
1749		2733
1750	my $pid;	2734	while (my ($face, $info) = each %$faces) {
		2735	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2736	cf::face::set_visibility $idx, $info->{visibility};
		2737	cf::face::set_magicmap $idx, $info->{magicmap};
		2738	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2739	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1751		2740
1752	sub db_save() {	2741	cf::cede_to_tick;
1753	warn "saving database $path\n";#d# remove later
1754	waitpid $pid, 0 if $pid;
1755	if (0 == ($pid = fork)) {
1756	$DB->{_meta}{version} = 1;
1757	Storable::nstore $DB, "$path~";
1758	rename "$path~", $path;
1759	cf::_exit 0 if defined $pid;
1760	}
1761	}
1762
1763	my $dirty;
1764
1765	sub db_sync() {
1766	db_save if $dirty;
1767	undef $dirty;
1768	}
1769
1770	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1771	db_sync;
1772	});
1773
1774	sub db_dirty() {
1775	$dirty = 1;
1776	$idle->start;
1777	}
1778
1779	sub db_get($;$) {
1780	@_ >= 2
1781	? $DB->{$_[0]}{$_[1]}
1782	: ($DB->{$_[0]} ||= { })
1783	}
1784
1785	sub db_put($$;$) {
1786	if (@_ >= 3) {
1787	$DB->{$_[0]}{$_[1]} = $_[2];
1788	} else {
1789	$DB->{$_[0]} = $_[1];
1790	}
1791	db_dirty;
1792	}
1793
1794	cf::global->attach (
1795	prio => 10000,
1796	on_cleanup => sub {
1797	db_sync;
1798	},	2742	}
1799	);
1800	}
1801		2743
1802	#############################################################################	2744	while (my ($face, $info) = each %$faces) {
1803	# the server's main()	2745	next unless $info->{smooth};
		2746	my $idx = cf::face::find $face
		2747	or next;
		2748	if (my $smooth = cf::face::find $info->{smooth}) {
		2749	cf::face::set_smooth $idx, $smooth;
		2750	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2751	} else {
		2752	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2753	}
		2754
		2755	cf::cede_to_tick;
		2756	}
		2757	}
		2758
		2759	{
		2760	my $anims = $facedata->{animinfo};
		2761
		2762	while (my ($anim, $info) = each %$anims) {
		2763	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2764	cf::cede_to_tick;
		2765	}
		2766
		2767	cf::anim::invalidate_all; # d'oh
		2768	}
		2769
		2770	{
		2771	# TODO: for gcfclient pleasure, we should give resources
		2772	# that gcfclient doesn't grok a >10000 face index.
		2773	my $res = $facedata->{resource};
		2774	my $enc = JSON::XS->new->utf8->canonical;
		2775
		2776	while (my ($name, $info) = each %$res) {
		2777	my $meta = $enc->encode ({
		2778	name => $name,
		2779	type => $info->{type},
		2780	copyright => $info->{copyright}, #TODO#
		2781	});
		2782
		2783	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2784
		2785	if ($name =~ /\.jpg$/) {
		2786	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2787	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2788	} else {
		2789	my $data = pack "(w/a*)*", $meta, $info->{data};
		2790	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2791
		2792	cf::face::set_type $idx, 1;
		2793	cf::face::set_data $idx, 0, $data, $chk;
		2794	}
		2795
		2796	cf::cede_to_tick;
		2797	}
		2798	}
		2799
		2800	1
		2801	}
		2802
		2803	sub reload_regions {
		2804	load_resource_file "$MAPDIR/regions"
		2805	or die "unable to load regions file\n";
		2806
		2807	for (cf::region::list) {
		2808	$_->{match} = qr/$_->{match}/
		2809	if exists $_->{match};
		2810	}
		2811	}
		2812
		2813	sub reload_facedata {
		2814	load_facedata "$DATADIR/facedata"
		2815	or die "unable to load facedata\n";
		2816	}
		2817
		2818	sub reload_archetypes {
		2819	load_resource_file "$DATADIR/archetypes"
		2820	or die "unable to load archetypes\n";
		2821	#d# NEED to laod twice to resolve forward references
		2822	# this really needs to be done in an extra post-pass
		2823	# (which needs to be synchronous, so solve it differently)
		2824	load_resource_file "$DATADIR/archetypes"
		2825	or die "unable to load archetypes\n";
		2826	}
		2827
		2828	sub reload_treasures {
		2829	load_resource_file "$DATADIR/treasures"
		2830	or die "unable to load treasurelists\n";
		2831	}
		2832
		2833	sub reload_resources {
		2834	warn "reloading resource files...\n";
		2835
		2836	reload_regions;
		2837	reload_facedata;
		2838	#reload_archetypes;#d#
		2839	reload_archetypes;
		2840	reload_treasures;
		2841
		2842	warn "finished reloading resource files\n";
		2843	}
		2844
		2845	sub init {
		2846	reload_resources;
		2847	}
1804		2848
1805	sub cfg_load {	2849	sub cfg_load {
1806	open my $fh, "<:utf8", cf::confdir . "/config"	2850	open my $fh, "<:utf8", "$CONFDIR/config"
1807	or return;	2851	or return;
1808		2852
1809	local $/;	2853	local $/;
1810	*CFG = YAML::Syck::Load <$fh>;	2854	*CFG = YAML::Syck::Load <$fh>;
		2855
		2856	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2857
		2858	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2859	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2860
		2861	if (exists $CFG{mlockall}) {
		2862	eval {
		2863	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2864	and die "WARNING: m(un)lockall failed: $!\n";
		2865	};
		2866	warn $@ if $@;
		2867	}
1811	}	2868	}
1812		2869
1813	sub main {	2870	sub main {
1814	# we must not ever block the main coroutine	2871	# we must not ever block the main coroutine
1815	local $Coro::idle = sub {	2872	local $Coro::idle = sub {
1816	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	2873	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1817	(Coro::unblock_sub {	2874	(async {
1818	Event::one_event;	2875	Event::one_event;
1819	})->();	2876	})->prio (Coro::PRIO_MAX);
1820	};	2877	};
1821		2878
1822	cfg_load;	2879	cfg_load;
1823	db_load;	2880	db_init;
1824	load_extensions;	2881	load_extensions;
		2882
		2883	$TICK_WATCHER->start;
1825	Event::loop;	2884	Event::loop;
1826	}	2885	}
1827		2886
1828	#############################################################################	2887	#############################################################################
1829	# initialisation	2888	# initialisation and cleanup
1830		2889
1831	sub perl_reload() {	2890	# install some emergency cleanup handlers
		2891	BEGIN {
		2892	for my $signal (qw(INT HUP TERM)) {
		2893	Event->signal (
		2894	reentrant => 0,
		2895	data => WF_AUTOCANCEL,
		2896	signal => $signal,
		2897	prio => 0,
		2898	cb => sub {
		2899	cf::cleanup "SIG$signal";
		2900	},
		2901	);
		2902	}
		2903	}
		2904
		2905	sub write_runtime {
		2906	my $runtime = "$LOCALDIR/runtime";
		2907
		2908	# first touch the runtime file to show we are still running:
		2909	# the fsync below can take a very very long time.
		2910
		2911	IO::AIO::aio_utime $runtime, undef, undef;
		2912
		2913	my $guard = cf::lock_acquire "write_runtime";
		2914
		2915	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2916	or return;
		2917
		2918	my $value = $cf::RUNTIME + 90 + 10;
		2919	# 10 is the runtime save interval, for a monotonic clock
		2920	# 60 allows for the watchdog to kill the server.
		2921
		2922	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2923	and return;
		2924
		2925	# always fsync - this file is important
		2926	aio_fsync $fh
		2927	and return;
		2928
		2929	# touch it again to show we are up-to-date
		2930	aio_utime $fh, undef, undef;
		2931
		2932	close $fh
		2933	or return;
		2934
		2935	aio_rename "$runtime~", $runtime
		2936	and return;
		2937
		2938	warn "runtime file written.\n";
		2939
		2940	1
		2941	}
		2942
		2943	sub emergency_save() {
		2944	my $freeze_guard = cf::freeze_mainloop;
		2945
		2946	warn "enter emergency perl save\n";
		2947
		2948	cf::sync_job {
		2949	# use a peculiar iteration method to avoid tripping on perl
		2950	# refcount bugs in for. also avoids problems with players
		2951	# and maps saved/destroyed asynchronously.
		2952	warn "begin emergency player save\n";
		2953	for my $login (keys %cf::PLAYER) {
		2954	my $pl = $cf::PLAYER{$login} or next;
		2955	$pl->valid or next;
		2956	$pl->save;
		2957	}
		2958	warn "end emergency player save\n";
		2959
		2960	warn "begin emergency map save\n";
		2961	for my $path (keys %cf::MAP) {
		2962	my $map = $cf::MAP{$path} or next;
		2963	$map->valid or next;
		2964	$map->save;
		2965	}
		2966	warn "end emergency map save\n";
		2967
		2968	warn "begin emergency database checkpoint\n";
		2969	BDB::db_env_txn_checkpoint $DB_ENV;
		2970	warn "end emergency database checkpoint\n";
		2971	};
		2972
		2973	warn "leave emergency perl save\n";
		2974	}
		2975
		2976	sub post_cleanup {
		2977	my ($make_core) = @_;
		2978
		2979	warn Carp::longmess "post_cleanup backtrace"
		2980	if $make_core;
		2981	}
		2982
		2983	sub do_reload_perl() {
1832	# can/must only be called in main	2984	# can/must only be called in main
1833	if ($Coro::current != $Coro::main) {	2985	if ($Coro::current != $Coro::main) {
1834	warn "can only reload from main coroutine\n";	2986	warn "can only reload from main coroutine";
1835	return;	2987	return;
1836	}	2988	}
1837		2989
1838	warn "reloading...";	2990	warn "reloading...";
1839		2991
1840	local $FREEZE = 1;	2992	warn "entering sync_job";
		2993
		2994	cf::sync_job {
		2995	cf::write_runtime; # external watchdog should not bark
1841	cf::emergency_save;	2996	cf::emergency_save;
		2997	cf::write_runtime; # external watchdog should not bark
1842		2998
1843	eval {	2999	warn "syncing database to disk";
		3000	BDB::db_env_txn_checkpoint $DB_ENV;
		3001
1844	# if anything goes wrong in here, we should simply crash as we already saved	3002	# if anything goes wrong in here, we should simply crash as we already saved
1845		3003
1846	# cancel all watchers	3004	warn "cancelling all WF_AUTOCANCEL watchers";
1847	for (Event::all_watchers) {	3005	for (Event::all_watchers) {
1848	$_->cancel if $_->data & WF_AUTOCANCEL;	3006	$_->cancel if $_->data & WF_AUTOCANCEL;
1849	}	3007	}
1850		3008
		3009	warn "flushing outstanding aio requests";
		3010	for (;;) {
		3011	BDB::flush;
		3012	IO::AIO::flush;
		3013	Coro::cede;
		3014	last unless IO::AIO::nreqs || BDB::nreqs;
		3015	warn "iterate...";
		3016	}
		3017
		3018	++$RELOAD;
		3019
1851	# cancel all extension coros	3020	warn "cancelling all extension coros";
1852	$_->cancel for values %EXT_CORO;	3021	$_->cancel for values %EXT_CORO;
1853	%EXT_CORO = ();	3022	%EXT_CORO = ();
1854		3023
1855	# unload all extensions	3024	warn "removing commands";
1856	for (@exts) {	3025	%COMMAND = ();
		3026
		3027	warn "removing ext/exti commands";
		3028	%EXTCMD = ();
		3029	%EXTICMD = ();
		3030
		3031	warn "unloading/nuking all extensions";
		3032	for my $pkg (@EXTS) {
1857	warn "unloading <$_>";	3033	warn "... unloading $pkg";
1858	unload_extension $_;	3034
		3035	if (my $cb = $pkg->can ("unload")) {
		3036	eval {
		3037	$cb->($pkg);
		3038	1
		3039	} or warn "$pkg unloaded, but with errors: $@";
1859	}	3040	}
1860		3041
		3042	warn "... nuking $pkg";
		3043	Symbol::delete_package $pkg;
		3044	}
		3045
1861	# unload all modules loaded from $LIBDIR	3046	warn "unloading all perl modules loaded from $LIBDIR";
1862	while (my ($k, $v) = each %INC) {	3047	while (my ($k, $v) = each %INC) {
1863	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3048	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1864		3049
1865	warn "removing <$k>";	3050	warn "... unloading $k";
1866	delete $INC{$k};	3051	delete $INC{$k};
1867		3052
1868	$k =~ s/\.pm$//;	3053	$k =~ s/\.pm$//;
1869	$k =~ s/\//::/g;	3054	$k =~ s/\//::/g;
1870		3055
…		…
1873	}	3058	}
1874		3059
1875	Symbol::delete_package $k;	3060	Symbol::delete_package $k;
1876	}	3061	}
1877		3062
1878	# sync database to disk
1879	cf::db_sync;
1880	IO::AIO::flush;
1881
1882	# get rid of safe::, as good as possible	3063	warn "getting rid of safe::, as good as possible";
1883	Symbol::delete_package "safe::$_"	3064	Symbol::delete_package "safe::$_"
1884	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1885		3066
1886	# remove register_script_function callbacks
1887	# TODO
1888
1889	# unload cf.pm "a bit"	3067	warn "unloading cf.pm \"a bit\"";
1890	delete $INC{"cf.pm"};	3068	delete $INC{"cf.pm"};
		3069	delete $INC{"cf/pod.pm"};
1891		3070
1892	# don't, removes xs symbols, too,	3071	# don't, removes xs symbols, too,
1893	# and global variables created in xs	3072	# and global variables created in xs
1894	#Symbol::delete_package __PACKAGE__;	3073	#Symbol::delete_package __PACKAGE__;
1895		3074
1896	# reload cf.pm	3075	warn "unload completed, starting to reload now";
		3076
1897	warn "reloading cf.pm";	3077	warn "reloading cf.pm";
1898	require cf;	3078	require cf;
1899	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3079	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1900		3080
1901	# load config and database again	3081	warn "loading config and database again";
1902	cf::cfg_load;	3082	cf::cfg_load;
1903	cf::db_load;
1904		3083
1905	# load extensions
1906	warn "load extensions";	3084	warn "loading extensions";
1907	cf::load_extensions;	3085	cf::load_extensions;
1908		3086
1909	# reattach attachments to objects	3087	warn "reattaching attachments to objects/players";
1910	warn "reattach";	3088	_global_reattach; # objects, sockets
1911	_global_reattach;	3089	warn "reattaching attachments to maps";
1912	};	3090	reattach $_ for values %MAP;
		3091	warn "reattaching attachments to players";
		3092	reattach $_ for values %PLAYER;
1913		3093
1914	if ($@) {	3094	warn "leaving sync_job";
		3095
		3096	1
		3097	} or do {
1915	warn $@;	3098	warn $@;
1916	warn "error while reloading, exiting.";	3099	warn "error while reloading, exiting.";
1917	exit 1;	3100	exit 1;
1918	}	3101	};
1919		3102
1920	warn "reloaded successfully";	3103	warn "reloaded";
1921	};	3104	};
1922		3105
1923	#############################################################################	3106	our $RELOAD_WATCHER; # used only during reload
1924		3107
1925	unless ($LINK_MAP) {	3108	sub reload_perl() {
1926	$LINK_MAP = cf::map::new;	3109	# doing reload synchronously and two reloads happen back-to-back,
		3110	# coro crashes during coro_state_free->destroy here.
1927		3111
1928	$LINK_MAP->width (41);	3112	$RELOAD_WATCHER ||= Event->timer (
1929	$LINK_MAP->height (41);	3113	reentrant => 0,
1930	$LINK_MAP->alloc;
1931	$LINK_MAP->path ("{link}");
1932	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1933	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1934
1935	# dirty hack because... archetypes are not yet loaded
1936	Event->timer (
1937	after => 2,	3114	after => 0,
		3115	data => WF_AUTOCANCEL,
1938	cb => sub {	3116	cb => sub {
1939	$_[0]->w->cancel;	3117	do_reload_perl;
1940		3118	undef $RELOAD_WATCHER;
1941	# provide some exits "home"
1942	my $exit = cf::object::new "exit";
1943
1944	$exit->slaying ($EMERGENCY_POSITION->[0]);
1945	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1946	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1947
1948	$LINK_MAP->insert ($exit->clone, 19, 19);
1949	$LINK_MAP->insert ($exit->clone, 19, 20);
1950	$LINK_MAP->insert ($exit->clone, 19, 21);
1951	$LINK_MAP->insert ($exit->clone, 20, 19);
1952	$LINK_MAP->insert ($exit->clone, 20, 21);
1953	$LINK_MAP->insert ($exit->clone, 21, 19);
1954	$LINK_MAP->insert ($exit->clone, 21, 20);
1955	$LINK_MAP->insert ($exit->clone, 21, 21);
1956
1957	$exit->destroy;
1958	});	3119	},
1959		3120	);
1960	$LINK_MAP->{deny_save} = 1;
1961	$LINK_MAP->{deny_reset} = 1;
1962
1963	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1964	}	3121	}
1965		3122
1966	register "<global>", __PACKAGE__;
1967
1968	register_command "perl-reload" => sub {	3123	register_command "reload" => sub {
1969	my ($who, $arg) = @_;	3124	my ($who, $arg) = @_;
1970		3125
1971	if ($who->flag (FLAG_WIZ)) {	3126	if ($who->flag (FLAG_WIZ)) {
1972	$who->message ("start of reload.");
1973	perl_reload;
1974	$who->message ("end of reload.");	3127	$who->message ("reloading server.");
		3128	async { reload_perl };
1975	}	3129	}
1976	};	3130	};
1977		3131
1978	unshift @INC, $LIBDIR;	3132	unshift @INC, $LIBDIR;
1979		3133
		3134	my $bug_warning = 0;
		3135
		3136	our @WAIT_FOR_TICK;
		3137	our @WAIT_FOR_TICK_BEGIN;
		3138
		3139	sub wait_for_tick {
		3140	return unless $TICK_WATCHER->is_active;
		3141	return if $Coro::current == $Coro::main;
		3142
		3143	my $signal = new Coro::Signal;
		3144	push @WAIT_FOR_TICK, $signal;
		3145	$signal->wait;
		3146	}
		3147
		3148	sub wait_for_tick_begin {
		3149	return unless $TICK_WATCHER->is_active;
		3150	return if $Coro::current == $Coro::main;
		3151
		3152	my $signal = new Coro::Signal;
		3153	push @WAIT_FOR_TICK_BEGIN, $signal;
		3154	$signal->wait;
		3155	}
		3156
		3157	my $min = 1e6;#d#
		3158	my $avg = 10;
1980	$TICK_WATCHER = Event->timer (	3159	$TICK_WATCHER = Event->timer (
1981	reentrant => 0,	3160	reentrant => 0,
		3161	parked => 1,
1982	prio => 0,	3162	prio => 0,
1983	at => $NEXT_TICK || $TICK,	3163	at => $NEXT_TICK || $TICK,
1984	data => WF_AUTOCANCEL,	3164	data => WF_AUTOCANCEL,
1985	cb => sub {	3165	cb => sub {
1986	unless ($FREEZE) {	3166	if ($Coro::current != $Coro::main) {
		3167	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3168	unless ++$bug_warning > 10;
		3169	return;
		3170	}
		3171
		3172	$NOW = $tick_start = Event::time;
		3173
1987	cf::server_tick; # one server iteration	3174	cf::server_tick; # one server iteration
1988	$RUNTIME += $TICK;	3175
		3176	0 && sync_job {#d#
		3177	for(1..10) {
		3178	my $t = Event::time;
		3179	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3180	or die;
		3181
		3182	$map->width (50);
		3183	$map->height (50);
		3184	$map->alloc;
		3185	$map->_load_objects ("/tmp/x.map", 1);
		3186	my $t = Event::time - $t;
		3187
		3188	#next unless $t < 0.0013;#d#
		3189	if ($t < $min) {
		3190	$min = $t;
		3191	}
		3192	$avg = $avg * 0.99 + $t * 0.01;
		3193	}
		3194	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3195	exit 0;
		3196	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
1989	}	3197	};
1990		3198
		3199	$RUNTIME += $TICK;
1991	$NEXT_TICK += $TICK;	3200	$NEXT_TICK += $TICK;
1992		3201
		3202	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3203	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3204	Coro::async_pool {
		3205	write_runtime
		3206	or warn "ERROR: unable to write runtime file: $!";
		3207	};
		3208	}
		3209
		3210	# my $AFTER = Event::time;
		3211	# warn $AFTER - $NOW;#d#
		3212
		3213	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3214	$sig->send;
		3215	}
		3216	while (my $sig = shift @WAIT_FOR_TICK) {
		3217	$sig->send;
		3218	}
		3219
		3220	$NOW = Event::time;
		3221
1993	# if we are delayed by four ticks or more, skip them all	3222	# if we are delayed by four ticks or more, skip them all
1994	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3223	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
1995		3224
1996	$TICK_WATCHER->at ($NEXT_TICK);	3225	$TICK_WATCHER->at ($NEXT_TICK);
1997	$TICK_WATCHER->start;	3226	$TICK_WATCHER->start;
		3227
		3228	$LOAD = ($NOW - $tick_start) / $TICK;
		3229	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3230
		3231	_post_tick;
		3232
		3233
1998	},	3234	},
1999	);	3235	);
2000		3236
		3237	{
2001	IO::AIO::max_poll_time $TICK * 0.2;	3238	BDB::max_poll_time $TICK * 0.1;
2002		3239	$BDB_POLL_WATCHER = Event->io (
2003	Event->io (	3240	reentrant => 0,
2004	fd => IO::AIO::poll_fileno,	3241	fd => BDB::poll_fileno,
2005	poll => 'r',	3242	poll => 'r',
2006	prio => 5,	3243	prio => 0,
2007	data => WF_AUTOCANCEL,
2008	cb => \&IO::AIO::poll_cb,
2009	);
2010
2011	Event->timer (
2012	data => WF_AUTOCANCEL,	3244	data => WF_AUTOCANCEL,
2013	after => 0,	3245	cb => \&BDB::poll_cb,
2014	interval => 10,	3246	);
2015	cb => sub {	3247	BDB::min_parallel 8;
2016	(Coro::unblock_sub {	3248
2017	write_runtime	3249	BDB::set_sync_prepare {
2018	or warn "ERROR: unable to write runtime file: $!";	3250	my $status;
		3251	my $current = $Coro::current;
		3252	(
		3253	sub {
		3254	$status = $!;
		3255	$current->ready; undef $current;
		3256	},
		3257	sub {
		3258	Coro::schedule while defined $current;
		3259	$! = $status;
		3260	},
		3261	)
		3262	};
		3263
		3264	unless ($DB_ENV) {
		3265	$DB_ENV = BDB::db_env_create;
		3266
		3267	cf::sync_job {
		3268	eval {
		3269	BDB::db_env_open
		3270	$DB_ENV,
		3271	$BDBDIR,
		3272	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3273	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3274	0666;
		3275
		3276	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3277
		3278	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3279	$DB_ENV->set_lk_detect;
		3280	};
		3281
		3282	cf::cleanup "db_env_open(db): $@" if $@;
2019	})->();	3283	};
2020	},	3284	}
2021	);	3285	}
		3286
		3287	{
		3288	IO::AIO::min_parallel 8;
		3289
		3290	undef $Coro::AIO::WATCHER;
		3291	IO::AIO::max_poll_time $TICK * 0.1;
		3292	$AIO_POLL_WATCHER = Event->io (
		3293	reentrant => 0,
		3294	data => WF_AUTOCANCEL,
		3295	fd => IO::AIO::poll_fileno,
		3296	poll => 'r',
		3297	prio => 6,
		3298	cb => \&IO::AIO::poll_cb,
		3299	);
		3300	}
		3301
		3302	my $_log_backtrace;
		3303
		3304	sub _log_backtrace {
		3305	my ($msg, @addr) = @_;
		3306
		3307	$msg =~ s/\n//;
		3308
		3309	# limit the # of concurrent backtraces
		3310	if ($_log_backtrace < 2) {
		3311	++$_log_backtrace;
		3312	async {
		3313	my @bt = fork_call {
		3314	@addr = map { sprintf "%x", $_ } @addr;
		3315	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3316	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3317	or die "addr2line: $!";
		3318
		3319	my @funcs;
		3320	my @res = <$fh>;
		3321	chomp for @res;
		3322	while (@res) {
		3323	my ($func, $line) = splice @res, 0, 2, ();
		3324	push @funcs, "[$func] $line";
		3325	}
		3326
		3327	@funcs
		3328	};
		3329
		3330	LOG llevInfo, "[ABT] $msg\n";
		3331	LOG llevInfo, "[ABT] $_\n" for @bt;
		3332	--$_log_backtrace;
		3333	};
		3334	} else {
		3335	LOG llevInfo, "[ABT] $msg\n";
		3336	LOG llevInfo, "[ABT] [suppressed]\n";
		3337	}
		3338	}
		3339
		3340	# load additional modules
		3341	use cf::pod;
		3342
		3343	END { cf::emergency_save }
2022		3344
2023	1	3345	1
2024		3346

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