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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.118 by root, Mon Jan 1 21:19:52 2007 UTC vs.
Revision 1.313 by root, Sun Jul 22 14:17:58 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 ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	340	is always able to handle events or runnable, as Crossfire TRT is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	341	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		342	acceptable.
191		343
192	If it must be done, put the blocking parts into C<sync_job>. This will run	344	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	345	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	346	server will be frozen during this time, so the block should either finish
195	fast or be very important.	347	fast or be very important.
…		…
198		350
199	sub sync_job(&) {	351	sub sync_job(&) {
200	my ($job) = @_;	352	my ($job) = @_;
201		353
202	if ($Coro::current == $Coro::main) {	354	if ($Coro::current == $Coro::main) {
		355	my $time = Event::time;
		356
203	# this is the main coro, too bad, we have to block	357	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	358	# till the operation succeeds, freezing the server :/
205		359
206	# TODO: use suspend/resume instead	360	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	361	# (but this is cancel-safe)
208	local $FREEZE = 1;	362	my $freeze_guard = freeze_mainloop;
209		363
210	my $busy = 1;	364	my $busy = 1;
211	my @res;	365	my @res;
212		366
213	(Coro::async {	367	(async {
214	@res = eval { $job->() };	368	@res = eval { $job->() };
215	warn $@ if $@;	369	warn $@ if $@;
216	undef $busy;	370	undef $busy;
217	})->prio (Coro::PRIO_MAX);	371	})->prio (Coro::PRIO_MAX);
218		372
219	while ($busy) {	373	while ($busy) {
220	Coro::cede_notself;	374	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	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
223		383
224	wantarray ? @res : $res[0]	384	wantarray ? @res : $res[0]
225	} else {	385	} else {
226	# we are in another coroutine, how wonderful, everything just works	386	# we are in another coroutine, how wonderful, everything just works
227		387
228	$job->()	388	$job->()
229	}	389	}
230	}	390	}
231		391
232	=item $coro = cf::coro { BLOCK }	392	=item $coro = cf::async_ext { BLOCK }
233		393
234	Creates and returns a new coro. This coro is automcatially being canceled	394	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	395	extension calling this is being unloaded.
236		396
237	=cut	397	=cut
238		398
239	sub coro(&) {	399	sub async_ext(&) {
240	my $cb = shift;	400	my $cb = shift;
241		401
242	my $coro; $coro = async {	402	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		403
249	$coro->on_destroy (sub {	404	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	405	delete $EXT_CORO{$coro+0};
251	});	406	});
252	$EXT_CORO{$coro+0} = $coro;	407	$EXT_CORO{$coro+0} = $coro;
253		408
254	$coro	409	$coro
255	}	410	}
256		411
257	sub write_runtime {	412	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		413
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	414	Executes the given code block with the given arguments in a seperate
261	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.
262		418
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	419	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		420
267	aio_fsync $fh	421	sub _store_scalar {
268	and return;	422	open my $fh, ">", \my $buf
269		423	or die "fork_call: cannot open fh-to-buf in child : $!";
		424	Storable::store_fd $_[0], $fh;
270	close $fh	425	close $fh;
271	or return;
272		426
273	aio_rename "$runtime~", $runtime	427	$buf
274	and return;	428	}
275		429
		430	sub fork_call(&@) {
		431	my ($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 $$res unless "ARRAY" eq ref $res;
		448
		449	return wantarray ? @$res : $res->[-1];
		450	} else {
		451	reset_signals;
		452	local $SIG{__WARN__};
		453	local $SIG{__DIE__};
		454	# just in case, this hack effectively disables event
		455	# in the child. cleaner and slower would be canceling all watchers,
		456	# but this works for the time being.
		457	local $Coro::idle;
		458	$Coro::current->prio (Coro::PRIO_MAX);
		459
		460	eval {
		461	close $fh1;
		462
		463	my @res = eval { $cb->(@args) };
		464
		465	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		466	close $fh2;
		467	};
		468
		469	warn $@ if $@;
		470	_exit 0;
276	1	471	}
		472	}
		473
		474	=item $value = cf::db_get $family => $key
		475
		476	Returns a single value from the environment database.
		477
		478	=item cf::db_put $family => $key => $value
		479
		480	Stores the given C<$value> in the family. It can currently store binary
		481	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		482
		483	=cut
		484
		485	our $DB;
		486
		487	sub db_init {
		488	unless ($DB) {
		489	$DB = BDB::db_create $DB_ENV;
		490
		491	cf::sync_job {
		492	eval {
		493	$DB->set_flags (BDB::CHKSUM);
		494
		495	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		496	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		497	cf::cleanup "db_open(db): $!" if $!;
		498	};
		499	cf::cleanup "db_open(db): $@" if $@;
		500	};
		501	}
		502	}
		503
		504	sub db_get($$) {
		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 });
277	}	599	}
278		600
279	=back	601	=back
280		602
281	=cut	603	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($class, $path, $base) = @_;
289
290	$path = $path->as_string if ref $path;
291
292	my $self = bless { }, $class;
293
294	# {... are special paths that are not touched
295	# ?xxx/... are special absolute paths
296	# ?random/... random maps
297	# /! non-realised random map exit
298	# /... normal maps
299	# ~/... per-player maps without a specific player (DO NOT USE)
300	# ~user/... per-player map of a specific user
301
302	if ($path =~ /^{/) {
303	# fine as it is
304	} elsif ($path =~ s{^\?random/}{}) {
305	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
306	$self->{random} = cf::from_json $data;
307	} else {
308	if ($path =~ s{^~([^/]+)?}{}) {
309	$self->{user_rel} = 1;
310
311	if (defined $1) {
312	$self->{user} = $1;
313	} elsif ($base =~ m{^~([^/]+)/}) {
314	$self->{user} = $1;
315	} else {
316	warn "cannot resolve user-relative path without user <$path,$base>\n";
317	}
318	} elsif ($path =~ /^\//) {
319	# already absolute
320	} else {
321	$base =~ s{[^/]+/?$}{};
322	return $class->new ("$base/$path");
323	}
324
325	for ($path) {
326	redo if s{/\.?/}{/};
327	redo if s{/[^/]+/\.\./}{/};
328	}
329	}
330
331	$self->{path} = $path;
332
333	$self
334	}
335
336	# the name / primary key / in-game path
337	sub as_string {
338	my ($self) = @_;
339
340	$self->{user_rel} ? "~$self->{user}$self->{path}"
341	: $self->{random} ? "?random/$self->{path}"
342	: $self->{path}
343	}
344
345	# the displayed name, this is a one way mapping
346	sub visible_name {
347	my ($self) = @_;
348
349	# if (my $rmp = $self->{random}) {
350	# # todo: be more intelligent about this
351	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
352	# } else {
353	$self->as_string
354	# }
355	}
356
357	# escape the /'s in the path
358	sub _escaped_path {
359	# ∕ is U+2215
360	(my $path = $_[0]{path}) =~ s/\//∕/g;
361	$path
362	}
363
364	# the original (read-only) location
365	sub load_path {
366	my ($self) = @_;
367
368	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
369	}
370
371	# the temporary/swap location
372	sub save_path {
373	my ($self) = @_;
374
375	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
376	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
377	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
378	}
379
380	# the unique path, might be eq to save_path
381	sub uniq_path {
382	my ($self) = @_;
383
384	$self->{user_rel} || $self->{random}
385	? undef
386	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
387	}
388
389	# return random map parameters, or undef
390	sub random_map_params {
391	my ($self) = @_;
392
393	$self->{random}
394	}
395
396	# this is somewhat ugly, but style maps do need special treatment
397	sub is_style_map {
398	$_[0]{path} =~ m{^/styles/}
399	}
400
401	package cf;
402		604
403	#############################################################################	605	#############################################################################
404		606
405	=head2 ATTACHABLE OBJECTS	607	=head2 ATTACHABLE OBJECTS
406		608
…		…
408	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")
409	to it. All such attachable objects support the following methods.	611	to it. All such attachable objects support the following methods.
410		612
411	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>
412	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
413	crossfire+).	615	Crossfire TRT).
414		616
415	=over 4	617	=over 4
416		618
417	=item $attachable->attach ($attachment, key => $value...)	619	=item $attachable->attach ($attachment, key => $value...)
418		620
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	734	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	735	our @CB_MAP = ();
534		736
535	my %attachment;	737	my %attachment;
536		738
		739	sub cf::attachable::thawer_merge {
		740	# simply override everything except _meta
		741	local $_[0]{_meta};
		742	%{$_[0]} = %{$_[1]};
		743	}
		744
537	sub _attach_cb($$$$) {	745	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	746	my ($registry, $event, $prio, $cb) = @_;
539		747
540	use sort 'stable';	748	use sort 'stable';
541		749
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	783	$registry = $CB_TYPE[$object_type] ||= [];
576		784
577	} elsif ($type eq "subtype") {	785	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	786	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	787	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	788	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		789
582	} elsif ($type eq "package") {	790	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	791	my $pkg = shift @arg;
584		792
585	while (my ($name, $id) = each %cb_id) {	793	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	822	_attach $registry, $klass, @attach;
615	}	823	}
616		824
617	$obj->{$name} = \%arg;	825	$obj->{$name} = \%arg;
618	} else {	826	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	827	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	828	}
621		829
622	$obj->{_attachment}{$name} = undef;	830	$obj->{_attachment}{$name} = undef;
623	}	831	}
624		832
…		…
626	if (ref $_[0]) {	834	if (ref $_[0]) {
627	_object_attach @_;	835	_object_attach @_;
628	} else {	836	} else {
629	_attach shift->_attach_registry, @_;	837	_attach shift->_attach_registry, @_;
630	}	838	}
		839	_recalc_want;
631	};	840	};
632		841
633	# all those should be optimised	842	# all those should be optimised
634	sub cf::attachable::detach {	843	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	844	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	847	delete $obj->{_attachment}{$name};
639	reattach ($obj);	848	reattach ($obj);
640	} else {	849	} else {
641	Carp::croak "cannot, currently, detach class attachments";	850	Carp::croak "cannot, currently, detach class attachments";
642	}	851	}
		852	_recalc_want;
643	};	853	};
644		854
645	sub cf::attachable::attached {	855	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	856	my ($obj, $name) = @_;
647		857
…		…
662	";	872	";
663	die if $@;	873	die if $@;
664	}	874	}
665		875
666	our $override;	876	our $override;
667	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?
668		878
669	sub override {	879	sub override {
670	$override = 1;	880	$override = 1;
671	@invoke_results = ();	881	@INVOKE_RESULTS = (@_);
672	}	882	}
673		883
674	sub do_invoke {	884	sub do_invoke {
675	my $event = shift;	885	my $event = shift;
676	my $callbacks = shift;	886	my $callbacks = shift;
677		887
678	@invoke_results = ();	888	@INVOKE_RESULTS = ();
679		889
680	local $override;	890	local $override;
681		891
682	for (@$callbacks) {	892	for (@$callbacks) {
683	eval { &{$_->[1]} };	893	eval { &{$_->[1]} };
…		…
700		910
701	Generate an object-specific event with the given arguments.	911	Generate an object-specific event with the given arguments.
702		912
703	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
704	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
705	results (if you must, access C<@cf::invoke_results> directly).	915	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		916
707	=back	917	=back
708		918
709	=cut	919	=cut
710		920
711	#############################################################################	921	#############################################################################
712	# object support	922	# object support
		923	#
		924
		925	sub _can_merge {
		926	my ($ob1, $ob2) = @_;
		927
		928	local $Storable::canonical = 1;
		929	my $fob1 = Storable::freeze $ob1;
		930	my $fob2 = Storable::freeze $ob2;
		931
		932	$fob1 eq $fob2
		933	}
713		934
714	sub reattach {	935	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	936	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	937	my ($obj) = @_;
		938
		939	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		940
718	my $registry = $obj->registry;	941	my $registry = $obj->registry;
719		942
720	@$registry = ();	943	@$registry = ();
721		944
…		…
768	$filename, length $$rdata, scalar @$objs;	991	$filename, length $$rdata, scalar @$objs;
769		992
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	993	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	994	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	995	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	996	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	997	close $fh;
775		998
776	if (@$objs) {	999	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1000	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1001	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1002	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1003	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	1004	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	1005	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1006	aio_rename "$filename.pst~", "$filename.pst";
784	}	1007	}
785	} else {	1008	} else {
786	aio_unlink "$filename.pst";	1009	aio_unlink "$filename.pst";
…		…
818	or return;	1041	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1042	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1043	}
821		1044
822	warn sprintf "loading %s (%d)\n",	1045	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1046	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1047	return ($data, $av);
825	}	1048	}
		1049
		1050	=head2 COMMAND CALLBACKS
		1051
		1052	=over 4
		1053
		1054	=cut
826		1055
827	#############################################################################	1056	#############################################################################
828	# command handling &c	1057	# command handling &c
829		1058
830	=item cf::register_command $name => \&callback($ob,$args);	1059	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1072	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1073	}
845		1074
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1075	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1076
848	Register a callbackf ro execution when the client sends an extcmd packet.	1077	Register a callback for execution when the client sends an (synchronous)
		1078	extcmd packet. Ext commands will be processed in the order they are
		1079	received by the server, like other user commands. The first argument is
		1080	the logged-in player. Ext commands can only be processed after a player
		1081	has logged in successfully.
849		1082
850	If the callback returns something, it is sent back as if reply was being	1083	If the callback returns something, it is sent back as if reply was being
851	called.	1084	called.
852		1085
		1086	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1087
		1088	Register a callback for execution when the client sends an (asynchronous)
		1089	exticmd packet. Exti commands are processed by the server as soon as they
		1090	are received, i.e. out of order w.r.t. other commands. The first argument
		1091	is a client socket. Exti commands can be received anytime, even before
		1092	log-in.
		1093
		1094	If the callback returns something, it is sent back as if reply was being
		1095	called.
		1096
853	=cut	1097	=cut
854		1098
855	sub register_extcmd {	1099	sub register_extcmd {
856	my ($name, $cb) = @_;	1100	my ($name, $cb) = @_;
857		1101
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	1102	$EXTCMD{$name} = $cb;
		1103	}
		1104
		1105	sub register_exticmd {
		1106	my ($name, $cb) = @_;
		1107
		1108	$EXTICMD{$name} = $cb;
862	}	1109	}
863		1110
864	cf::player->attach (	1111	cf::player->attach (
865	on_command => sub {	1112	on_command => sub {
866	my ($pl, $name, $params) = @_;	1113	my ($pl, $name, $params) = @_;
…		…
875	cf::override;	1122	cf::override;
876	},	1123	},
877	on_extcmd => sub {	1124	on_extcmd => sub {
878	my ($pl, $buf) = @_;	1125	my ($pl, $buf) = @_;
879		1126
880	my $msg = eval { from_json $buf };	1127	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
881		1128
882	if (ref $msg) {	1129	if (ref $msg) {
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1130	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	1131	if (my %reply = $cb->($pl, $msg)) {
885	$pl->ext_reply ($msg->{msgid}, %reply);	1132	$pl->ext_reply ($msg->{msgid}, %reply);
886	}	1133	}
887	}	1134	}
888	} else {	1135	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1136	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
891		1138
892	cf::override;	1139	cf::override;
893	},	1140	},
894	);	1141	);
895		1142
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	1143	sub load_extensions {
		1144	cf::sync_job {
		1145	my %todo;
		1146
		1147	for my $path (<$LIBDIR/*.ext>) {
		1148	next unless -r $path;
		1149
		1150	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1151	my $base = $1;
		1152	my $pkg = $1;
		1153	$pkg =~ s/[^[:word:]]/_/g;
		1154	$pkg = "ext::$pkg";
		1155
		1156	open my $fh, "<:utf8", $path
		1157	or die "$path: $!";
		1158
		1159	my $source = do { local $/; <$fh> };
		1160
		1161	my %ext = (
		1162	path => $path,
		1163	base => $base,
		1164	pkg => $pkg,
		1165	);
		1166
		1167	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1168	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1169
		1170	$ext{source} =
		1171	"package $pkg; use strict; use utf8;\n"
		1172	. "#line 1 \"$path\"\n{\n"
		1173	. $source
		1174	. "\n};\n1";
		1175
		1176	$todo{$base} = \%ext;
		1177	}
		1178
		1179	my %done;
		1180	while (%todo) {
		1181	my $progress;
		1182
		1183	while (my ($k, $v) = each %todo) {
		1184	for (split /,\s*/, $v->{meta}{depends}) {
		1185	goto skip
		1186	unless exists $done{$_};
		1187	}
		1188
		1189	warn "... loading '$k' into '$v->{pkg}'\n";
		1190
		1191	unless (eval $v->{source}) {
		1192	my $msg = $@ ? "$v->{path}: $@\n"
		1193	: "$v->{base}: extension inactive.\n";
		1194
		1195	if (exists $v->{meta}{mandatory}) {
		1196	warn $msg;
		1197	warn "mandatory extension failed to load, exiting.\n";
		1198	exit 1;
		1199	}
		1200
		1201	warn $msg;
		1202	}
		1203
		1204	$done{$k} = delete $todo{$k};
		1205	push @EXTS, $v->{pkg};
		1206	$progress = 1;
		1207	}
		1208
		1209	skip:
		1210	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1211	unless $progress;
		1212	}
		1213	};
		1214	}
		1215
		1216	#############################################################################
		1217
		1218	=back
		1219
		1220	=head2 CORE EXTENSIONS
		1221
		1222	Functions and methods that extend core crossfire objects.
		1223
		1224	=cut
		1225
		1226	package cf::player;
		1227
		1228	use Coro::AIO;
		1229
		1230	=head3 cf::player
		1231
		1232	=over 4
		1233
		1234	=item cf::player::find $login
		1235
		1236	Returns the given player object, loading it if necessary (might block).
		1237
		1238	=cut
		1239
		1240	sub playerdir($) {
		1241	"$PLAYERDIR/"
		1242	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1243	}
		1244
		1245	sub path($) {
		1246	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1247
		1248	(playerdir $login) . "/playerdata"
		1249	}
		1250
		1251	sub find_active($) {
		1252	$cf::PLAYER{$_[0]}
		1253	and $cf::PLAYER{$_[0]}->active
		1254	and $cf::PLAYER{$_[0]}
		1255	}
		1256
		1257	sub exists($) {
		1258	my ($login) = @_;
		1259
		1260	$cf::PLAYER{$login}
		1261	or cf::sync_job { !aio_stat path $login }
		1262	}
		1263
		1264	sub find($) {
		1265	return $cf::PLAYER{$_[0]} || do {
		1266	my $login = $_[0];
		1267
		1268	my $guard = cf::lock_acquire "user_find:$login";
		1269
		1270	$cf::PLAYER{$_[0]} || do {
		1271	# rename old playerfiles to new ones
		1272	#TODO: remove when no longer required
		1273	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1274	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1275	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1276	aio_unlink +(playerdir $login) . "/$login.pl";
		1277
		1278	my $pl = load_pl path $login
		1279	or return;
		1280	$cf::PLAYER{$login} = $pl
		1281	}
		1282	}
		1283	}
		1284
		1285	sub save($) {
		1286	my ($pl) = @_;
		1287
		1288	return if $pl->{deny_save};
		1289
		1290	my $path = path $pl;
		1291	my $guard = cf::lock_acquire "user_save:$path";
		1292
		1293	return if $pl->{deny_save};
		1294
		1295	aio_mkdir playerdir $pl, 0770;
		1296	$pl->{last_save} = $cf::RUNTIME;
		1297
		1298	$pl->save_pl ($path);
		1299	Coro::cede;
		1300	}
		1301
		1302	sub new($) {
		1303	my ($login) = @_;
		1304
		1305	my $self = create;
		1306
		1307	$self->ob->name ($login);
		1308	$self->{deny_save} = 1;
		1309
		1310	$cf::PLAYER{$login} = $self;
		1311
		1312	$self
		1313	}
		1314
		1315	=item $pl->quit_character
		1316
		1317	Nukes the player without looking back. If logged in, the connection will
		1318	be destroyed. May block for a long time.
		1319
		1320	=cut
		1321
		1322	sub quit_character {
		1323	my ($pl) = @_;
		1324
		1325	my $name = $pl->ob->name;
		1326
		1327	$pl->{deny_save} = 1;
		1328	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1329
		1330	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1331	$pl->deactivate;
		1332	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1333	$pl->ns->destroy if $pl->ns;
		1334
		1335	my $path = playerdir $pl;
		1336	my $temp = "$path~$cf::RUNTIME~deleting~";
		1337	aio_rename $path, $temp;
		1338	delete $cf::PLAYER{$pl->ob->name};
		1339	$pl->destroy;
		1340
		1341	my $prefix = qr<^~\Q$name\E/>;
		1342
		1343	# nuke player maps
		1344	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1345
		1346	IO::AIO::aio_rmtree $temp;
		1347	}
		1348
		1349	=item $pl->kick
		1350
		1351	Kicks a player out of the game. This destroys the connection.
		1352
		1353	=cut
		1354
		1355	sub kick {
		1356	my ($pl, $kicker) = @_;
		1357
		1358	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1359	$pl->killer ("kicked");
		1360	$pl->ns->destroy;
		1361	}
		1362
		1363	=item cf::player::list_logins
		1364
		1365	Returns am arrayref of all valid playernames in the system, can take a
		1366	while and may block, so not sync_job-capable, ever.
		1367
		1368	=cut
		1369
		1370	sub list_logins {
		1371	my $dirs = aio_readdir $PLAYERDIR
		1372	or return [];
		1373
		1374	my @logins;
		1375
		1376	for my $login (@$dirs) {
		1377	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1378	aio_read $fh, 0, 512, my $buf, 0 or next;
		1379	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1380
		1381	utf8::decode $login;
		1382	push @logins, $login;
		1383	}
		1384
		1385	\@logins
		1386	}
		1387
		1388	=item $player->maps
		1389
		1390	Returns an arrayref of map paths that are private for this
		1391	player. May block.
		1392
		1393	=cut
		1394
		1395	sub maps($) {
		1396	my ($pl) = @_;
		1397
		1398	$pl = ref $pl ? $pl->ob->name : $pl;
		1399
		1400	my $files = aio_readdir playerdir $pl
		1401	or return;
		1402
		1403	my @paths;
		1404
		1405	for (@$files) {
		1406	utf8::decode $_;
		1407	next if /\.(?:pl|pst)$/;
		1408	next unless /^$PATH_SEP/o;
		1409
		1410	push @paths, cf::map::normalise "~$pl/$_";
		1411	}
		1412
		1413	\@paths
		1414	}
		1415
		1416	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1417
		1418	Expand crossfire pod fragments into protocol xml.
		1419
		1420	=cut
		1421
		1422	sub expand_cfpod {
		1423	((my $self), (local $_)) = @_;
		1424
		1425	# escape & and <
		1426	s/&/&amp;/g;
		1427	s/(?<![BIUGH])</&lt;/g;
		1428
		1429	# this is buggy, it needs to properly take care of nested <'s
		1430
		1431	1 while
		1432	# replace B<>, I<>, U<> etc.
		1433	s/B<([^\>]*)>/<b>$1<\/b>/
		1434	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1435	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1436	# replace G<male|female> tags
		1437	|| s{G<([^>|]*)\|([^>]*)>}{
		1438	$self->gender ? $2 : $1
		1439	}ge
		1440	# replace H<hint text>
		1441	|| s{H<([^\>]*)>}
		1442	{
		1443	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1444	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1445	"")
		1446	[$self->{hintmode}]
		1447	}ge;
		1448
		1449	# create single paragraphs (very hackish)
		1450	s/(?<=\S)\n(?=\w)/ /g;
		1451
		1452	# compress some whitespace
		1453	s/\s+\n/\n/g; # ws line-ends
		1454	s/\n\n+/\n/g; # double lines
		1455	s/^\n+//; # beginning lines
		1456	s/\n+$//; # ending lines
		1457
		1458	$_
		1459	}
		1460
		1461	sub hintmode {
		1462	$_[0]{hintmode} = $_[1] if @_ > 1;
		1463	$_[0]{hintmode}
		1464	}
		1465
		1466	=item $player->ext_reply ($msgid, %msg)
		1467
		1468	Sends an ext reply to the player.
		1469
		1470	=cut
		1471
		1472	sub ext_reply($$%) {
		1473	my ($self, $id, %msg) = @_;
		1474
		1475	$msg{msgid} = $id;
		1476	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1477	}
		1478
		1479	=item $player->ext_event ($type, %msg)
		1480
		1481	Sends an ext event to the client.
		1482
		1483	=cut
		1484
		1485	sub ext_event($$%) {
		1486	my ($self, $type, %msg) = @_;
		1487
		1488	$self->ns->ext_event ($type, %msg);
		1489	}
		1490
		1491	=head3 cf::region
		1492
		1493	=over 4
		1494
		1495	=cut
		1496
		1497	package cf::region;
		1498
		1499	=item cf::region::find_by_path $path
		1500
		1501	Tries to decuce the likely region for a map knowing only its path.
		1502
		1503	=cut
		1504
		1505	sub find_by_path($) {
903	my ($path) = @_;	1506	my ($path) = @_;
904		1507
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1508	my ($match, $specificity);
906	my $base = $1;
907	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";
910		1509
911	warn "loading '$path' into '$pkg'\n";	1510	for my $region (list) {
912		1511	if ($region->{match} && $path =~ $region->{match}) {
913	open my $fh, "<:utf8", $path	1512	($match, $specificity) = ($region, $region->specificity)
914	or die "$path: $!";	1513	if $region->specificity > $specificity;
915		1514	}
916	my $source =
917	"package $pkg; use strict; use utf8;\n"
918	. "#line 1 \"$path\"\n{\n"
919	. (do { local $/; <$fh> })
920	. "\n};\n1";
921
922	eval $source
923	or die $@ ? "$path: $@\n"
924	: "extension disabled.\n";
925
926	push @exts, $pkg;
927	$ext_pkg{$base} = $pkg;
928
929	# no strict 'refs';
930	# @{"$pkg\::ISA"} = ext::;
931
932	register $base, $pkg;
933	}
934
935	sub unload_extension {
936	my ($pkg) = @_;
937
938	warn "removing extension $pkg\n";
939
940	# remove hooks
941	#TODO
942	# for my $idx (0 .. $#PLUGIN_EVENT) {
943	# delete $hook[$idx]{$pkg};
944	# }	1515	}
945		1516
946	# remove commands	1517	$match
947	for my $name (keys %COMMAND) {
948	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
949
950	if (@cb) {
951	$COMMAND{$name} = \@cb;
952	} else {
953	delete $COMMAND{$name};
954	}
955	}
956
957	# remove extcmds
958	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
959	delete $EXTCMD{$name};
960	}
961
962	if (my $cb = $pkg->can ("unload")) {
963	eval {
964	$cb->($pkg);
965	1
966	} or warn "$pkg unloaded, but with errors: $@";
967	}
968
969	Symbol::delete_package $pkg;
970	}
971
972	sub load_extensions {
973	for my $ext (<$LIBDIR/*.ext>) {
974	next unless -r $ext;
975	eval {
976	load_extension $ext;
977	1
978	} or warn "$ext not loaded: $@";
979	}
980	}
981
982	#############################################################################
983	# load/save/clean perl data associated with a map
984
985	*cf::mapsupport::on_clean = sub {
986	my ($map) = @_;
987
988	my $path = $map->tmpname;
989	defined $path or return;
990
991	unlink "$path.pst";
992	};
993
994	cf::map->attach (prio => -10000, package => cf::mapsupport::);
995
996	#############################################################################
997	# load/save perl data associated with player->ob objects
998
999	sub all_objects(@) {
1000	@_, map all_objects ($_->inv), @_
1001	}
1002
1003	# TODO: compatibility cruft, remove when no longer needed
1004	cf::player->attach (
1005	on_load => sub {
1006	my ($pl, $path) = @_;
1007
1008	for my $o (all_objects $pl->ob) {
1009	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1010	$o->set_ob_key_value ("_perl_data");
1011
1012	%$o = %{ Storable::thaw pack "H*", $value };
1013	}
1014	}
1015	},
1016	);
1017
1018	#############################################################################
1019
1020	=head2 CORE EXTENSIONS
1021
1022	Functions and methods that extend core crossfire objects.
1023
1024	=head3 cf::player
1025
1026	=over 4
1027
1028	=item cf::player::exists $login
1029
1030	Returns true when the given account exists.
1031
1032	=cut
1033
1034	sub cf::player::exists($) {
1035	cf::player::find $_[0]
1036	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1037	}
1038
1039	=item $player->ext_reply ($msgid, $msgtype, %msg)
1040
1041	Sends an ext reply to the player.
1042
1043	=cut
1044
1045	sub cf::player::ext_reply($$$%) {
1046	my ($self, $id, %msg) = @_;
1047
1048	$msg{msgid} = $id;
1049
1050	$self->send ("ext " . to_json \%msg);
1051	}	1518	}
1052		1519
1053	=back	1520	=back
1054
1055		1521
1056	=head3 cf::map	1522	=head3 cf::map
1057		1523
1058	=over 4	1524	=over 4
1059		1525
…		…
1062	package cf::map;	1528	package cf::map;
1063		1529
1064	use Fcntl;	1530	use Fcntl;
1065	use Coro::AIO;	1531	use Coro::AIO;
1066		1532
		1533	use overload
		1534	'""' => \&as_string,
		1535	fallback => 1;
		1536
1067	our $MAX_RESET = 7200;	1537	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1538	our $DEFAULT_RESET = 3000;
1069		1539
1070	sub generate_random_map {	1540	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1541	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1542	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1543	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1544	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1545	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1546	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1547	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1548	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1549	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1550	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1551	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1552	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1553	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1554	(cf::region::find $rmp->{region}), $rmp->{custom}
		1555	)
		1556	}
		1557
		1558	=item cf::map->register ($regex, $prio)
		1559
		1560	Register a handler for the map path matching the given regex at the
		1561	givne priority (higher is better, built-in handlers have priority 0, the
		1562	default).
		1563
		1564	=cut
		1565
		1566	sub register {
		1567	my (undef, $regex, $prio) = @_;
		1568	my $pkg = caller;
		1569
		1570	no strict;
		1571	push @{"$pkg\::ISA"}, __PACKAGE__;
		1572
		1573	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1574	}
		1575
		1576	# also paths starting with '/'
		1577	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1578
		1579	sub thawer_merge {
		1580	my ($self, $merge) = @_;
		1581
		1582	# we have to keep some variables in memory intact
		1583	local $self->{path};
		1584	local $self->{load_path};
		1585
		1586	$self->SUPER::thawer_merge ($merge);
		1587	}
		1588
		1589	sub normalise {
		1590	my ($path, $base) = @_;
		1591
		1592	$path = "$path"; # make sure its a string
		1593
		1594	$path =~ s/\.map$//;
		1595
		1596	# map plan:
		1597	#
		1598	# /! non-realised random map exit (special hack!)
		1599	# {... are special paths that are not being touched
		1600	# ?xxx/... are special absolute paths
		1601	# ?random/... random maps
		1602	# /... normal maps
		1603	# ~user/... per-player map of a specific user
		1604
		1605	$path =~ s/$PATH_SEP/\//go;
		1606
		1607	# treat it as relative path if it starts with
		1608	# something that looks reasonable
		1609	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1610	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1611
		1612	$base =~ s{[^/]+/?$}{};
		1613	$path = "$base/$path";
		1614	}
		1615
		1616	for ($path) {
		1617	redo if s{//}{/};
		1618	redo if s{/\.?/}{/};
		1619	redo if s{/[^/]+/\.\./}{/};
		1620	}
		1621
		1622	$path
		1623	}
		1624
		1625	sub new_from_path {
		1626	my (undef, $path, $base) = @_;
		1627
		1628	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1629
		1630	$path = normalise $path, $base;
		1631
		1632	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1633	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1634	my $self = bless cf::map::new, $pkg;
		1635	$self->{path} = $path; $self->path ($path);
		1636	$self->init; # pass $1 etc.
		1637	return $self;
		1638	}
		1639	}
		1640
		1641	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1642	()
		1643	}
		1644
		1645	sub init {
		1646	my ($self) = @_;
		1647
		1648	$self
		1649	}
		1650
		1651	sub as_string {
		1652	my ($self) = @_;
		1653
		1654	"$self->{path}"
		1655	}
		1656
		1657	# the displayed name, this is a one way mapping
		1658	sub visible_name {
		1659	&as_string
		1660	}
		1661
		1662	# the original (read-only) location
		1663	sub load_path {
		1664	my ($self) = @_;
		1665
		1666	"$MAPDIR/$self->{path}.map"
		1667	}
		1668
		1669	# the temporary/swap location
		1670	sub save_path {
		1671	my ($self) = @_;
		1672
		1673	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1674	"$TMPDIR/$path.map"
		1675	}
		1676
		1677	# the unique path, undef == no special unique path
		1678	sub uniq_path {
		1679	my ($self) = @_;
		1680
		1681	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1682	"$UNIQUEDIR/$path"
1087	}	1683	}
1088		1684
1089	# and all this just because we cannot iterate over	1685	# and all this just because we cannot iterate over
1090	# all maps in C++...	1686	# all maps in C++...
1091	sub change_all_map_light {	1687	sub change_all_map_light {
1092	my ($change) = @_;	1688	my ($change) = @_;
1093		1689
1094	$_->change_map_light ($change) for values %cf::MAP;	1690	$_->change_map_light ($change)
		1691	for grep $_->outdoor, values %cf::MAP;
1095	}	1692	}
1096		1693
		1694	sub decay_objects {
		1695	my ($self) = @_;
		1696
		1697	return if $self->{deny_reset};
		1698
		1699	$self->do_decay_objects;
		1700	}
		1701
		1702	sub unlink_save {
		1703	my ($self) = @_;
		1704
		1705	utf8::encode (my $save = $self->save_path);
		1706	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1707	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1708	}
		1709
1097	sub try_load_header($) {	1710	sub load_header_from($) {
1098	my ($path) = @_;	1711	my ($self, $path) = @_;
1099		1712
1100	utf8::encode $path;	1713	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1714	#aio_open $path, O_RDONLY, 0
		1715	# or return;
		1716
		1717	$self->_load_header ($path)
1102	or return;	1718	or return;
1103		1719
1104	my $map = cf::map::new	1720	$self->{load_path} = $path;
		1721
		1722	1
		1723	}
		1724
		1725	sub load_header_orig {
		1726	my ($self) = @_;
		1727
		1728	$self->load_header_from ($self->load_path)
		1729	}
		1730
		1731	sub load_header_temp {
		1732	my ($self) = @_;
		1733
		1734	$self->load_header_from ($self->save_path)
		1735	}
		1736
		1737	sub prepare_temp {
		1738	my ($self) = @_;
		1739
		1740	$self->last_access ((delete $self->{last_access})
		1741	|| $cf::RUNTIME); #d#
		1742	# safety
		1743	$self->{instantiate_time} = $cf::RUNTIME
		1744	if $self->{instantiate_time} > $cf::RUNTIME;
		1745	}
		1746
		1747	sub prepare_orig {
		1748	my ($self) = @_;
		1749
		1750	$self->{load_original} = 1;
		1751	$self->{instantiate_time} = $cf::RUNTIME;
		1752	$self->last_access ($cf::RUNTIME);
		1753	$self->instantiate;
		1754	}
		1755
		1756	sub load_header {
		1757	my ($self) = @_;
		1758
		1759	if ($self->load_header_temp) {
		1760	$self->prepare_temp;
		1761	} else {
		1762	$self->load_header_orig
1105	or return;	1763	or return;
		1764	$self->prepare_orig;
		1765	}
1106		1766
1107	$map->load_header ($path)	1767	$self->{deny_reset} = 1
1108	or return;	1768	if $self->no_reset;
1109		1769
1110	$map->{load_path} = $path;	1770	$self->default_region (cf::region::find_by_path $self->{path})
		1771	unless $self->default_region;
1111		1772
1112	$map	1773	1
1113	}	1774	}
1114		1775
		1776	sub find;
1115	sub find_map {	1777	sub find {
1116	my ($path, $origin) = @_;	1778	my ($path, $origin) = @_;
1117		1779
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1780	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1781
		1782	cf::lock_wait "map_find:$path";
		1783
1123	$cf::MAP{$key} || do {	1784	$cf::MAP{$path} || do {
1124	# do it the slow way	1785	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1786	my $map = new_from_path cf::map $path
1126
1127	if ($map) {
1128	# safety
1129	$map->{instantiate_time} = $cf::RUNTIME
1130	if $map->{instantiate_time} > $cf::RUNTIME;
1131	} else {
1132	if (my $rmp = $path->random_map_params) {
1133	$map = generate_random_map $key, $rmp;
1134	} else {
1135	$map = try_load_header $path->load_path;
1136	}
1137
1138	$map or return;	1787	or return;
1139		1788
1140	$map->{load_original} = 1;
1141	$map->{instantiate_time} = $cf::RUNTIME;
1142	$map->instantiate;
1143
1144	# per-player maps become, after loading, normal maps
1145	$map->per_player (0) if $path->{user_rel};
1146	}
1147	#Coro::Timer::sleep 1;#d#
1148
1149	$map->path ($key);
1150	$map->{path} = $path;
1151	$map->{last_save} = $cf::RUNTIME;	1789	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1790
1154	if ($map->should_reset) {	1791	$map->load_header
		1792	or return;
		1793
		1794	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1795	# doing this can freeze the server in a sync job, obviously
		1796	#$cf::WAIT_FOR_TICK->wait;
1155	$map->reset;	1797	$map->reset;
1156	$map = find_map $path;	1798	undef $guard;
		1799	return find $path;
1157	}	1800	}
1158		1801
1159	$cf::MAP{$key} = $map	1802	$cf::MAP{$path} = $map
1160	}	1803	}
1161	}	1804	}
		1805
		1806	sub pre_load { }
		1807	sub post_load { }
1162		1808
1163	sub load {	1809	sub load {
1164	my ($self) = @_;	1810	my ($self) = @_;
1165		1811
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1812	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1813
1170	my $path = $self->{path};	1814	my $path = $self->{path};
1171		1815
		1816	{
		1817	my $guard = cf::lock_acquire "map_load:$path";
		1818
		1819	return if $self->in_memory != cf::MAP_SWAPPED;
		1820
		1821	$self->in_memory (cf::MAP_LOADING);
		1822
1172	$self->alloc;	1823	$self->alloc;
		1824
		1825	$self->pre_load;
		1826	Coro::cede;
		1827
1173	$self->load_objects ($self->{load_path}, 1)	1828	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1829	or return;
1175		1830
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1831	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1832	if delete $self->{load_original};
1178		1833
1179	if (my $uniq = $path->uniq_path) {	1834	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1835	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1836	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1837	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1838	$self->_load_objects ($uniq, 0);
1184	}	1839	}
1185	}	1840	}
1186		1841
		1842	Coro::cede;
1187	# now do the right thing for maps	1843	# now do the right thing for maps
1188	$self->link_multipart_objects;	1844	$self->link_multipart_objects;
1189
1190	if ($self->{path}->is_style_map) {
1191	$self->{deny_save} = 1;
1192	$self->{deny_reset} = 1;
1193	} else {
1194	$self->fix_auto_apply;
1195	$self->decay_objects;
1196	$self->update_buttons;
1197	$self->set_darkness_map;
1198	$self->difficulty ($self->estimate_difficulty)	1845	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1846	unless $self->difficulty;
		1847	Coro::cede;
		1848
		1849	unless ($self->{deny_activate}) {
		1850	$self->decay_objects;
		1851	$self->fix_auto_apply;
		1852	$self->update_buttons;
		1853	Coro::cede;
		1854	$self->set_darkness_map;
		1855	Coro::cede;
1200	$self->activate;	1856	$self->activate;
1201	}	1857	}
1202		1858
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1859	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1860	}
1205		1861
1206	sub load_map_sync {	1862	$self->post_load;
		1863	}
		1864
		1865	sub customise_for {
		1866	my ($self, $ob) = @_;
		1867
		1868	return find "~" . $ob->name . "/" . $self->{path}
		1869	if $self->per_player;
		1870
		1871	# return find "?party/" . $ob->name . "/" . $self->{path}
		1872	# if $self->per_party;
		1873
		1874	$self
		1875	}
		1876
		1877	# find and load all maps in the 3x3 area around a map
		1878	sub load_diag {
		1879	my ($map) = @_;
		1880
		1881	my @diag; # diagonal neighbours
		1882
		1883	for (0 .. 3) {
		1884	my $neigh = $map->tile_path ($_)
		1885	or next;
		1886	$neigh = find $neigh, $map
		1887	or next;
		1888	$neigh->load;
		1889
		1890	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1891	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1892	}
		1893
		1894	for (@diag) {
		1895	my $neigh = find @$_
		1896	or next;
		1897	$neigh->load;
		1898	}
		1899	}
		1900
		1901	sub find_sync {
1207	my ($path, $origin) = @_;	1902	my ($path, $origin) = @_;
1208		1903
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1904	cf::sync_job { find $path, $origin }
		1905	}
1210		1906
1211	cf::sync_job {	1907	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1908	my ($map) = @_;
1213	or return;	1909
		1910	cf::sync_job { $map->load };
		1911	}
		1912
		1913	our %MAP_PREFETCH;
		1914	our $MAP_PREFETCHER = undef;
		1915
		1916	sub find_async {
		1917	my ($path, $origin) = @_;
		1918
		1919	$path = normalise $path, $origin && $origin->{path};
		1920
		1921	if (my $map = $cf::MAP{$path}) {
		1922	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1923	}
		1924
		1925	undef $MAP_PREFETCH{$path};
		1926	$MAP_PREFETCHER ||= cf::async {
		1927	while (%MAP_PREFETCH) {
		1928	for my $path (keys %MAP_PREFETCH) {
		1929	if (my $map = find $path) {
1214	$map->load;	1930	$map->load;
1215	$map	1931	}
		1932
		1933	delete $MAP_PREFETCH{$path};
		1934	}
		1935	}
		1936	undef $MAP_PREFETCHER;
1216	}	1937	};
		1938	$MAP_PREFETCHER->prio (6);
		1939
		1940	()
1217	}	1941	}
1218		1942
1219	sub save {	1943	sub save {
1220	my ($self) = @_;	1944	my ($self) = @_;
1221		1945
		1946	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1947
1222	$self->{last_save} = $cf::RUNTIME;	1948	$self->{last_save} = $cf::RUNTIME;
1223		1949
1224	return unless $self->dirty;	1950	return unless $self->dirty;
1225		1951
1226	my $save = $self->{path}->save_path; utf8::encode $save;	1952	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1953	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		1954
1229	$self->{load_path} = $save;	1955	$self->{load_path} = $save;
1230		1956
1231	return if $self->{deny_save};	1957	return if $self->{deny_save};
1232		1958
		1959	local $self->{last_access} = $self->last_access;#d#
		1960
		1961	cf::async {
		1962	$_->contr->save for $self->players;
		1963	};
		1964
1233	if ($uniq) {	1965	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1966	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	1967	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	1968	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1969	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	1970	}
1239	}	1971	}
1240		1972
1241	sub swap_out {	1973	sub swap_out {
1242	my ($self) = @_;	1974	my ($self) = @_;
		1975
		1976	# save first because save cedes
		1977	$self->save;
		1978
		1979	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		1980
1244	return if $self->players;	1981	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	1982	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	1983	return if $self->{deny_save};
1247		1984
1248	$self->save;
1249	$self->clear;	1985	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	1986	$self->in_memory (cf::MAP_SWAPPED);
1251	}	1987	}
1252		1988
1253	sub reset_at {	1989	sub reset_at {
1254	my ($self) = @_;	1990	my ($self) = @_;
1255		1991
1256	# TODO: safety, remove and allow resettable per-player maps	1992	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};
1258	return 1e99 if $self->{deny_reset};	1993	return 1e99 if $self->{deny_reset};
1259		1994
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1995	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1996	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		1997
…		…
1267	my ($self) = @_;	2002	my ($self) = @_;
1268		2003
1269	$self->reset_at <= $cf::RUNTIME	2004	$self->reset_at <= $cf::RUNTIME
1270	}	2005	}
1271		2006
1272	sub unlink_save {
1273	my ($self) = @_;
1274
1275	utf8::encode (my $save = $self->{path}->save_path);
1276	aioreq_pri 3; IO::AIO::aio_unlink $save;
1277	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1278	}
1279
1280	sub rename {
1281	my ($self, $new_path) = @_;
1282
1283	$self->unlink_save;
1284
1285	delete $cf::MAP{$self->path};
1286	$self->{path} = new cf::path $new_path;
1287	$self->path ($self->{path}->as_string);
1288	$cf::MAP{$self->path} = $self;
1289
1290	$self->save;
1291	}
1292
1293	sub reset {	2007	sub reset {
1294	my ($self) = @_;	2008	my ($self) = @_;
1295		2009
		2010	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2011
1296	return if $self->players;	2012	return if $self->players;
1297	return if $self->{path}{user_rel};#d#
1298		2013
1299	warn "resetting map ", $self->path;#d#	2014	warn "resetting map ", $self->path;
		2015
		2016	$self->in_memory (cf::MAP_SWAPPED);
		2017
		2018	# need to save uniques path
		2019	unless ($self->{deny_save}) {
		2020	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2021
		2022	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2023	if $uniq;
		2024	}
1300		2025
1301	delete $cf::MAP{$self->path};	2026	delete $cf::MAP{$self->path};
		2027
		2028	$self->clear;
1302		2029
1303	$_->clear_links_to ($self) for values %cf::MAP;	2030	$_->clear_links_to ($self) for values %cf::MAP;
1304		2031
1305	$self->unlink_save;	2032	$self->unlink_save;
1306	$self->destroy;	2033	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	2036	my $nuke_counter = "aaaa";
1310		2037
1311	sub nuke {	2038	sub nuke {
1312	my ($self) = @_;	2039	my ($self) = @_;
1313		2040
		2041	delete $cf::MAP{$self->path};
		2042
		2043	$self->unlink_save;
		2044
		2045	bless $self, "cf::map";
		2046	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	2047	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	2048	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	2049	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2050
		2051	$cf::MAP{$self->path} = $self;
		2052
1317	$self->reset; # polite request, might not happen	2053	$self->reset; # polite request, might not happen
1318	}	2054	}
1319		2055
1320	sub customise_for {	2056	=item $maps = cf::map::tmp_maps
1321	my ($map, $ob) = @_;
1322		2057
1323	if ($map->per_player) {	2058	Returns an arrayref with all map paths of currently instantiated and saved
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2059	maps. May block.
		2060
		2061	=cut
		2062
		2063	sub tmp_maps() {
1325	}	2064	[
1326		2065	map {
1327	$map	2066	utf8::decode $_;
		2067	/\.map$/
		2068	? normalise $_
		2069	: ()
		2070	} @{ aio_readdir $TMPDIR or [] }
		2071	]
1328	}	2072	}
1329		2073
1330	sub emergency_save {	2074	=item $maps = cf::map::random_maps
1331	local $cf::FREEZE = 1;
1332		2075
1333	warn "enter emergency map save\n";	2076	Returns an arrayref with all map paths of currently instantiated and saved
		2077	random maps. May block.
1334		2078
1335	cf::sync_job {	2079	=cut
1336	warn "begin emergency map save\n";
1337	$_->save for values %cf::MAP;
1338	};
1339		2080
1340	warn "end emergency map save\n";	2081	sub random_maps() {
		2082	[
		2083	map {
		2084	utf8::decode $_;
		2085	/\.map$/
		2086	? normalise "?random/$_"
		2087	: ()
		2088	} @{ aio_readdir $RANDOMDIR or [] }
		2089	]
		2090	}
		2091
		2092	=item cf::map::unique_maps
		2093
		2094	Returns an arrayref of paths of all shared maps that have
		2095	instantiated unique items. May block.
		2096
		2097	=cut
		2098
		2099	sub unique_maps() {
		2100	[
		2101	map {
		2102	utf8::decode $_;
		2103	/\.map$/
		2104	? normalise $_
		2105	: ()
		2106	} @{ aio_readdir $UNIQUEDIR or [] }
		2107	]
1341	}	2108	}
1342		2109
1343	package cf;	2110	package cf;
1344		2111
1345	=back	2112	=back
1346		2113
		2114	=head3 cf::object
		2115
		2116	=cut
		2117
		2118	package cf::object;
		2119
		2120	=over 4
		2121
		2122	=item $ob->inv_recursive
		2123
		2124	Returns the inventory of the object _and_ their inventories, recursively.
		2125
		2126	=cut
		2127
		2128	sub inv_recursive_;
		2129	sub inv_recursive_ {
		2130	map { $_, inv_recursive_ $_->inv } @_
		2131	}
		2132
		2133	sub inv_recursive {
		2134	inv_recursive_ inv $_[0]
		2135	}
		2136
		2137	package cf;
		2138
		2139	=back
1347		2140
1348	=head3 cf::object::player	2141	=head3 cf::object::player
1349		2142
1350	=over 4	2143	=over 4
1351		2144
…		…
1365		2158
1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2159	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1367		2160
1368	if ($self->{record_replies}) {	2161	if ($self->{record_replies}) {
1369	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2162	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2163
1370	} else {	2164	} else {
		2165	my $pl = $self->contr;
		2166
		2167	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2168	my $diag = $pl->{npc_dialog};
		2169	$diag->{pl}->ext_reply (
		2170	$diag->{id},
		2171	msgtype => "reply",
		2172	msg => $diag->{pl}->expand_cfpod ($msg),
		2173	add_topics => []
		2174	);
		2175
		2176	} else {
1371	$msg = $npc->name . " says: $msg" if $npc;	2177	$msg = $npc->name . " says: $msg" if $npc;
1372	$self->message ($msg, $flags);	2178	$self->message ($msg, $flags);
		2179	}
1373	}	2180	}
1374	}	2181	}
1375		2182
1376	=item $player_object->may ("access")	2183	=item $player_object->may ("access")
1377		2184
…		…
1391		2198
1392	=item $player_object->enter_link	2199	=item $player_object->enter_link
1393		2200
1394	Freezes the player and moves him/her to a special map (C<{link}>).	2201	Freezes the player and moves him/her to a special map (C<{link}>).
1395		2202
1396	The player should be reaosnably safe there for short amounts of time. You	2203	The player should be reasonably safe there for short amounts of time. You
1397	I<MUST> call C<leave_link> as soon as possible, though.	2204	I<MUST> call C<leave_link> as soon as possible, though.
1398		2205
		2206	Will never block.
		2207
1399	=item $player_object->leave_link ($map, $x, $y)	2208	=item $player_object->leave_link ($map, $x, $y)
1400		2209
1401	Moves the player out of the specila link map onto the given map. If the	2210	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	2211	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	2212	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	2213	fails, to the emergency map position.
1405		2214
1406	Might block.	2215	Might block.
1407		2216
1408	=cut	2217	=cut
		2218
		2219	sub link_map {
		2220	unless ($LINK_MAP) {
		2221	$LINK_MAP = cf::map::find "{link}"
		2222	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2223	$LINK_MAP->load;
		2224	}
		2225
		2226	$LINK_MAP
		2227	}
1409		2228
1410	sub cf::object::player::enter_link {	2229	sub cf::object::player::enter_link {
1411	my ($self) = @_;	2230	my ($self) = @_;
1412		2231
1413	return if $self->map == $LINK_MAP;
1414
1415	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1416	if $self->map;
1417
1418	$self->enter_map ($LINK_MAP, 20, 20);
1419	$self->deactivate_recursive;	2232	$self->deactivate_recursive;
		2233
		2234	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2235
		2236	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2237	if $self->map && $self->map->{path} ne "{link}";
		2238
		2239	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1420	}	2240	}
1421		2241
1422	sub cf::object::player::leave_link {	2242	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	2243	my ($self, $map, $x, $y) = @_;
		2244
		2245	return unless $self->contr->active;
1424		2246
1425	my $link_pos = delete $self->{_link_pos};	2247	my $link_pos = delete $self->{_link_pos};
1426		2248
1427	unless ($map) {	2249	unless ($map) {
1428	# restore original map position	2250	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	2251	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	2252	$map = cf::map::find $map;
1431		2253
1432	unless ($map) {	2254	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	2255	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	2256	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	2257	or die "FATAL: cannot load emergency map\n";
1436	}	2258	}
1437	}	2259	}
1438		2260
1439	($x, $y) = (-1, -1)	2261	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	2264	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	2265	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	2266	if $x <=0 && $y <= 0;
1445		2267
1446	$map->load;	2268	$map->load;
		2269	$map->load_diag;
1447		2270
		2271	return unless $self->contr->active;
1448	$self->activate_recursive;	2272	$self->activate_recursive;
		2273
		2274	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	2275	$self->enter_map ($map, $x, $y);
1450	}	2276	}
1451		2277
1452	=item $player_object->goto_map ($path, $x, $y)	2278	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1453		2279
1454	=cut	2280	Moves the player to the given map-path and coordinates by first freezing
		2281	her, loading and preparing them map, calling the provided $check callback
		2282	that has to return the map if sucecssful, and then unfreezes the player on
		2283	the new (success) or old (failed) map position. In either case, $done will
		2284	be called at the end of this process.
1455		2285
		2286	=cut
		2287
		2288	our $GOTOGEN;
		2289
1456	sub cf::object::player::goto_map {	2290	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	2291	my ($self, $path, $x, $y, $check, $done) = @_;
		2292
		2293	# do generation counting so two concurrent goto's will be executed in-order
		2294	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1458		2295
1459	$self->enter_link;	2296	$self->enter_link;
1460		2297
1461	(Coro::async {	2298	(async {
1462	$path = new cf::path $path;	2299	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	2300	my $map = cf::map::find $path;
1465	$map = $map->customise_for ($self) if $map;
1466		2301
1467	warn "entering ", $map->path, " at ($x, $y)\n"
1468	if $map;	2302	if ($map) {
1469		2303	$map = $map->customise_for ($self);
		2304	$map = $check->($map) if $check && $map;
		2305	} else {
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2306	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2307	}
1471		2308
		2309	$map
		2310	};
		2311
		2312	if ($@) {
		2313	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2314	LOG llevError | logBacktrace, Carp::longmess $@;
		2315	}
		2316
		2317	if ($gen == $self->{_goto_generation}) {
		2318	delete $self->{_goto_generation};
1472	$self->leave_link ($map, $x, $y);	2319	$self->leave_link ($map, $x, $y);
		2320	}
		2321
		2322	$done->() if $done;
1473	})->prio (1);	2323	})->prio (1);
1474	}	2324	}
1475		2325
1476	=item $player_object->enter_exit ($exit_object)	2326	=item $player_object->enter_exit ($exit_object)
1477		2327
…		…
1479		2329
1480	sub parse_random_map_params {	2330	sub parse_random_map_params {
1481	my ($spec) = @_;	2331	my ($spec) = @_;
1482		2332
1483	my $rmp = { # defaults	2333	my $rmp = { # defaults
1484	xsize => 10,	2334	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2335	ysize => (cf::rndm 15, 40),
		2336	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2337	#layout => string,
1486	};	2338	};
1487		2339
1488	for (split /\n/, $spec) {	2340	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2341	my ($k, $v) = split /\s+/, $_, 2;
1490		2342
…		…
1494	$rmp	2346	$rmp
1495	}	2347	}
1496		2348
1497	sub prepare_random_map {	2349	sub prepare_random_map {
1498	my ($exit) = @_;	2350	my ($exit) = @_;
		2351
		2352	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2353
1500	# all this does is basically replace the /! path by	2354	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2355	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2356	# that depends on the exit object
1503		2357
1504	my $rmp = parse_random_map_params $exit->msg;	2358	my $rmp = parse_random_map_params $exit->msg;
1505		2359
1506	if ($exit->map) {	2360	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2361	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2362	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2363	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2364	$rmp->{origin_y} = $exit->y;
1511	}	2365	}
1512		2366
1513	$rmp->{random_seed} ||= $exit->random_seed;	2367	$rmp->{random_seed} ||= $exit->random_seed;
1514		2368
1515	my $data = cf::to_json $rmp;	2369	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2370	my $md5 = Digest::MD5::md5_hex $data;
		2371	my $meta = "$RANDOMDIR/$md5.meta";
1517		2372
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2373	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2374	aio_write $fh, 0, (length $data), $data, 0;
		2375	undef $fh;
		2376	aio_rename "$meta~", $meta;
1520		2377
1521	$exit->slaying ("?random/$md5");	2378	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2379	$exit->msg (undef);
1523	}	2380	}
1524	}	2381	}
…		…
1526	sub cf::object::player::enter_exit {	2383	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2384	my ($self, $exit) = @_;
1528		2385
1529	return unless $self->type == cf::PLAYER;	2386	return unless $self->type == cf::PLAYER;
1530		2387
		2388	if ($exit->slaying eq "/!") {
		2389	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2390	# the problem is that $exit might not survive long enough
		2391	# so it needs to be done right now, right here
		2392	cf::sync_job { prepare_random_map $exit };
		2393	}
		2394
		2395	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2396	my $hp = $exit->stats->hp;
		2397	my $sp = $exit->stats->sp;
		2398
1531	$self->enter_link;	2399	$self->enter_link;
1532		2400
		2401	# if exit is damned, update players death & WoR home-position
		2402	$self->contr->savebed ($slaying, $hp, $sp)
		2403	if $exit->flag (FLAG_DAMNED);
		2404
1533	(Coro::async {	2405	(async {
		2406	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2407	unless (eval {
1535		2408	$self->goto ($slaying, $hp, $sp);
1536	prepare_random_map $exit
1537	if $exit->slaying eq "/!";
1538
1539	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1540	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1541		2409
1542	1;	2410	1;
1543	}) {	2411	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2412	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	2413	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2414	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2415	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2416
1549	warn "ERROR in enter_exit: $@";	2417	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2418	$self->leave_link;
1551	}	2419	}
1552	})->prio (1);	2420	})->prio (1);
…		…
1565		2433
1566	sub cf::client::send_drawinfo {	2434	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2435	my ($self, $text, $flags) = @_;
1568		2436
1569	utf8::encode $text;	2437	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2438	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2439	}
1572		2440
		2441	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2442
		2443	Send a drawinfo or msg packet to the client, formatting the msg for the
		2444	client if neccessary. C<$type> should be a string identifying the type of
		2445	the message, with C<log> being the default. If C<$color> is negative, suppress
		2446	the message unless the client supports the msg packet.
		2447
		2448	=cut
		2449
		2450	sub cf::client::send_msg {
		2451	my ($self, $channel, $msg, $color, @extra) = @_;
		2452
		2453	$msg = $self->pl->expand_cfpod ($msg);
		2454
		2455	$color &= ~cf::NDI_UNIQUE; # just in case...
		2456
		2457	if (ref $channel) {
		2458	# send meta info to client, if not yet sent
		2459	unless (exists $self->{channel}{$channel->{id}}) {
		2460	$self->{channel}{$channel->{id}} = $channel;
		2461	$self->ext_event (channel_info => %$channel);
		2462	}
		2463
		2464	$channel = $channel->{id};
		2465	}
		2466
		2467	return unless @extra || length $msg;
		2468
		2469	if ($self->can_msg) {
		2470	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2471	} else {
		2472	# replace some tags by gcfclient-compatible ones
		2473	for ($msg) {
		2474	1 while
		2475	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2476	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2477	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2478	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2479	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2480	}
		2481
		2482	if ($color >= 0) {
		2483	if (0 && $msg =~ /\[/) {
		2484	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2485	} else {
		2486	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2487	$self->send_packet ("drawinfo $color $msg")
		2488	}
		2489	}
		2490	}
		2491	}
		2492
		2493	=item $client->ext_event ($type, %msg)
		2494
		2495	Sends an ext event to the client.
		2496
		2497	=cut
		2498
		2499	sub cf::client::ext_event($$%) {
		2500	my ($self, $type, %msg) = @_;
		2501
		2502	return unless $self->extcmd;
		2503
		2504	$msg{msgtype} = "event_$type";
		2505	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2506	}
1573		2507
1574	=item $success = $client->query ($flags, "text", \&cb)	2508	=item $success = $client->query ($flags, "text", \&cb)
1575		2509
1576	Queues a query to the client, calling the given callback with	2510	Queues a query to the client, calling the given callback with
1577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2511	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2512	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1579		2513
1580	Queries can fail, so check the return code. Or don't, as queries will become	2514	Queries can fail, so check the return code. Or don't, as queries will
1581	reliable at some point in the future.	2515	become reliable at some point in the future.
1582		2516
1583	=cut	2517	=cut
1584		2518
1585	sub cf::client::query {	2519	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	2520	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	2528	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2529	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		2530
1597	$self->send_packet ($self->{query_queue}[0][0])	2531	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	2532	if @{ $self->{query_queue} } == 1;
		2533
		2534	1
1599	}	2535	}
1600		2536
1601	cf::client->attach (	2537	cf::client->attach (
		2538	on_connect => sub {
		2539	my ($ns) = @_;
		2540
		2541	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2542	},
1602	on_reply => sub {	2543	on_reply => sub {
1603	my ($ns, $msg) = @_;	2544	my ($ns, $msg) = @_;
1604		2545
1605	# this weird shuffling is so that direct followup queries	2546	# this weird shuffling is so that direct followup queries
1606	# get handled first	2547	# get handled first
1607	my $queue = delete $ns->{query_queue};	2548	my $queue = delete $ns->{query_queue}
		2549	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2550
1609	(shift @$queue)->[1]->($msg);	2551	(shift @$queue)->[1]->($msg);
		2552	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2553
1611	push @{ $ns->{query_queue} }, @$queue;	2554	push @{ $ns->{query_queue} }, @$queue;
1612		2555
1613	if (@{ $ns->{query_queue} } == @$queue) {	2556	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2557	if (@$queue) {
…		…
1616	} else {	2559	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2560	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	2561	}
1619	}	2562	}
1620	},	2563	},
		2564	on_exticmd => sub {
		2565	my ($ns, $buf) = @_;
		2566
		2567	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2568
		2569	if (ref $msg) {
		2570	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2571	if (my %reply = $cb->($ns, $msg)) {
		2572	$reply{msgid} = $msg->{msgid};
		2573	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2574	}
		2575	}
		2576	} else {
		2577	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2578	}
		2579
		2580	cf::override;
		2581	},
1621	);	2582	);
1622		2583
1623	=item $client->coro (\&cb)	2584	=item $client->async (\&cb)
1624		2585
1625	Create a new coroutine, running the specified callback. The coroutine will	2586	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2587	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2588	or loss of connection).
1628		2589
1629	=cut	2590	=cut
1630		2591
1631	sub cf::client::coro {	2592	sub cf::client::async {
1632	my ($self, $cb) = @_;	2593	my ($self, $cb) = @_;
1633		2594
1634	my $coro; $coro = async {	2595	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2596
1641	$coro->on_destroy (sub {	2597	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2598	delete $self->{_coro}{$coro+0};
1643	});	2599	});
1644		2600
…		…
1677		2633
1678	# here we export the classes and methods available to script code	2634	# here we export the classes and methods available to script code
1679		2635
1680	=pod	2636	=pod
1681		2637
1682	The following fucntions and emthods are available within a safe environment:	2638	The following functions and methods are available within a safe environment:
1683		2639
1684	cf::object contr pay_amount pay_player map	2640	cf::object
		2641	contr pay_amount pay_player map x y force_find force_add
		2642	insert remove
		2643
1685	cf::object::player player	2644	cf::object::player
1686	cf::player peaceful	2645	player
1687	cf::map trigger	2646
		2647	cf::player
		2648	peaceful
		2649
		2650	cf::map
		2651	trigger
1688		2652
1689	=cut	2653	=cut
1690		2654
1691	for (	2655	for (
1692	["cf::object" => qw(contr pay_amount pay_player map)],	2656	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2657	insert remove)],
1693	["cf::object::player" => qw(player)],	2658	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	2659	["cf::player" => qw(peaceful)],
1695	["cf::map" => qw(trigger)],	2660	["cf::map" => qw(trigger)],
1696	) {	2661	) {
1697	no strict 'refs';	2662	no strict 'refs';
…		…
1768	=back	2733	=back
1769		2734
1770	=cut	2735	=cut
1771		2736
1772	#############################################################################	2737	#############################################################################
		2738	# the server's init and main functions
1773		2739
1774	=head2 EXTENSION DATABASE SUPPORT	2740	sub load_facedata($) {
		2741	my ($path) = @_;
1775		2742
1776	Crossfire maintains a very simple database for extension use. It can	2743	warn "loading facedata from $path\n";
1777	currently store anything that can be serialised using Storable, which
1778	excludes objects.
1779		2744
1780	The parameter C<$family> should best start with the name of the extension	2745	my $facedata;
1781	using it, it should be unique.	2746	0 < aio_load $path, $facedata
		2747	or die "$path: $!";
1782		2748
1783	=over 4	2749	$facedata = Coro::Storable::thaw $facedata;
1784		2750
1785	=item $hashref = cf::db_get $family	2751	$facedata->{version} == 2
		2752	or cf::cleanup "$path: version mismatch, cannot proceed.";
1786		2753
1787	Return a hashref for use by the extension C<$family>, which can be
1788	modified. After modifications, you have to call C<cf::db_dirty> or
1789	C<cf::db_sync>.
1790
1791	=item $value = cf::db_get $family => $key
1792
1793	Returns a single value from the database
1794
1795	=item cf::db_put $family => $hashref
1796
1797	Stores the given family hashref into the database. Updates are delayed, if
1798	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1799
1800	=item cf::db_put $family => $key => $value
1801
1802	Stores the given C<$value> in the family hash. Updates are delayed, if you
1803	want the data to be synced to disk immediately, use C<cf::db_sync>.
1804
1805	=item cf::db_dirty
1806
1807	Marks the database as dirty, to be updated at a later time.
1808
1809	=item cf::db_sync
1810
1811	Immediately write the database to disk I<if it is dirty>.
1812
1813	=cut
1814
1815	our $DB;
1816
1817	{
1818	my $path = cf::localdir . "/database.pst";
1819
1820	sub db_load() {
1821	warn "loading database $path\n";#d# remove later
1822	$DB = stat $path ? Storable::retrieve $path : { };
1823	}	2754	{
		2755	my $faces = $facedata->{faceinfo};
1824		2756
1825	my $pid;	2757	while (my ($face, $info) = each %$faces) {
		2758	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2759	cf::face::set_visibility $idx, $info->{visibility};
		2760	cf::face::set_magicmap $idx, $info->{magicmap};
		2761	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2762	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1826		2763
1827	sub db_save() {	2764	cf::cede_to_tick;
1828	warn "saving database $path\n";#d# remove later
1829	waitpid $pid, 0 if $pid;
1830	if (0 == ($pid = fork)) {
1831	$DB->{_meta}{version} = 1;
1832	Storable::nstore $DB, "$path~";
1833	rename "$path~", $path;
1834	cf::_exit 0 if defined $pid;
1835	}
1836	}
1837
1838	my $dirty;
1839
1840	sub db_sync() {
1841	db_save if $dirty;
1842	undef $dirty;
1843	}
1844
1845	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1846	db_sync;
1847	});
1848
1849	sub db_dirty() {
1850	$dirty = 1;
1851	$idle->start;
1852	}
1853
1854	sub db_get($;$) {
1855	@_ >= 2
1856	? $DB->{$_[0]}{$_[1]}
1857	: ($DB->{$_[0]} ||= { })
1858	}
1859
1860	sub db_put($$;$) {
1861	if (@_ >= 3) {
1862	$DB->{$_[0]}{$_[1]} = $_[2];
1863	} else {
1864	$DB->{$_[0]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868
1869	cf::global->attach (
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	2765	}
1874	);
1875	}
1876		2766
1877	#############################################################################	2767	while (my ($face, $info) = each %$faces) {
1878	# the server's main()	2768	next unless $info->{smooth};
		2769	my $idx = cf::face::find $face
		2770	or next;
		2771	if (my $smooth = cf::face::find $info->{smooth}) {
		2772	cf::face::set_smooth $idx, $smooth;
		2773	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2774	} else {
		2775	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2776	}
		2777
		2778	cf::cede_to_tick;
		2779	}
		2780	}
		2781
		2782	{
		2783	my $anims = $facedata->{animinfo};
		2784
		2785	while (my ($anim, $info) = each %$anims) {
		2786	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2787	cf::cede_to_tick;
		2788	}
		2789
		2790	cf::anim::invalidate_all; # d'oh
		2791	}
		2792
		2793	{
		2794	# TODO: for gcfclient pleasure, we should give resources
		2795	# that gcfclient doesn't grok a >10000 face index.
		2796	my $res = $facedata->{resource};
		2797	my $enc = JSON::XS->new->utf8->canonical;
		2798
		2799	while (my ($name, $info) = each %$res) {
		2800	my $meta = $enc->encode ({
		2801	name => $name,
		2802	type => $info->{type},
		2803	copyright => $info->{copyright}, #TODO#
		2804	});
		2805
		2806	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2807
		2808	if ($name =~ /\.jpg$/) {
		2809	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2810	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2811	} else {
		2812	my $data = pack "(w/a*)*", $meta, $info->{data};
		2813	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2814
		2815	cf::face::set_type $idx, 1;
		2816	cf::face::set_data $idx, 0, $data, $chk;
		2817	}
		2818
		2819	cf::cede_to_tick;
		2820	}
		2821	}
		2822
		2823	1
		2824	}
		2825
		2826	sub reload_regions {
		2827	load_resource_file "$MAPDIR/regions"
		2828	or die "unable to load regions file\n";
		2829
		2830	for (cf::region::list) {
		2831	$_->{match} = qr/$_->{match}/
		2832	if exists $_->{match};
		2833	}
		2834	}
		2835
		2836	sub reload_facedata {
		2837	load_facedata "$DATADIR/facedata"
		2838	or die "unable to load facedata\n";
		2839	}
		2840
		2841	sub reload_archetypes {
		2842	load_resource_file "$DATADIR/archetypes"
		2843	or die "unable to load archetypes\n";
		2844	#d# NEED to laod twice to resolve forward references
		2845	# this really needs to be done in an extra post-pass
		2846	# (which needs to be synchronous, so solve it differently)
		2847	load_resource_file "$DATADIR/archetypes"
		2848	or die "unable to load archetypes\n";
		2849	}
		2850
		2851	sub reload_treasures {
		2852	load_resource_file "$DATADIR/treasures"
		2853	or die "unable to load treasurelists\n";
		2854	}
		2855
		2856	sub reload_resources {
		2857	warn "reloading resource files...\n";
		2858
		2859	reload_regions;
		2860	reload_facedata;
		2861	#reload_archetypes;#d#
		2862	reload_archetypes;
		2863	reload_treasures;
		2864
		2865	warn "finished reloading resource files\n";
		2866	}
		2867
		2868	sub init {
		2869	reload_resources;
		2870	}
1879		2871
1880	sub cfg_load {	2872	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2873	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2874	or return;
1883		2875
1884	local $/;	2876	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2877	*CFG = YAML::Syck::Load <$fh>;
		2878
		2879	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2880
		2881	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2882	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2883
		2884	if (exists $CFG{mlockall}) {
		2885	eval {
		2886	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2887	and die "WARNING: m(un)lockall failed: $!\n";
		2888	};
		2889	warn $@ if $@;
		2890	}
1886	}	2891	}
1887		2892
1888	sub main {	2893	sub main {
1889	# we must not ever block the main coroutine	2894	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2895	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2896	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2897	(async {
1893	Event::one_event;	2898	Event::one_event;
1894	})->();	2899	})->prio (Coro::PRIO_MAX);
1895	};	2900	};
1896		2901
1897	cfg_load;	2902	cfg_load;
1898	db_load;	2903	db_init;
1899	load_extensions;	2904	load_extensions;
		2905
		2906	$TICK_WATCHER->start;
1900	Event::loop;	2907	Event::loop;
1901	}	2908	}
1902		2909
1903	#############################################################################	2910	#############################################################################
1904	# initialisation	2911	# initialisation and cleanup
1905		2912
		2913	# install some emergency cleanup handlers
		2914	BEGIN {
		2915	for my $signal (qw(INT HUP TERM)) {
		2916	Event->signal (
		2917	reentrant => 0,
		2918	data => WF_AUTOCANCEL,
		2919	signal => $signal,
		2920	prio => 0,
		2921	cb => sub {
		2922	cf::cleanup "SIG$signal";
		2923	},
		2924	);
		2925	}
		2926	}
		2927
		2928	sub write_runtime {
		2929	my $runtime = "$LOCALDIR/runtime";
		2930
		2931	# first touch the runtime file to show we are still running:
		2932	# the fsync below can take a very very long time.
		2933
		2934	IO::AIO::aio_utime $runtime, undef, undef;
		2935
		2936	my $guard = cf::lock_acquire "write_runtime";
		2937
		2938	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2939	or return;
		2940
		2941	my $value = $cf::RUNTIME + 90 + 10;
		2942	# 10 is the runtime save interval, for a monotonic clock
		2943	# 60 allows for the watchdog to kill the server.
		2944
		2945	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2946	and return;
		2947
		2948	# always fsync - this file is important
		2949	aio_fsync $fh
		2950	and return;
		2951
		2952	# touch it again to show we are up-to-date
		2953	aio_utime $fh, undef, undef;
		2954
		2955	close $fh
		2956	or return;
		2957
		2958	aio_rename "$runtime~", $runtime
		2959	and return;
		2960
		2961	warn "runtime file written.\n";
		2962
		2963	1
		2964	}
		2965
		2966	sub emergency_save() {
		2967	my $freeze_guard = cf::freeze_mainloop;
		2968
		2969	warn "enter emergency perl save\n";
		2970
		2971	cf::sync_job {
		2972	# use a peculiar iteration method to avoid tripping on perl
		2973	# refcount bugs in for. also avoids problems with players
		2974	# and maps saved/destroyed asynchronously.
		2975	warn "begin emergency player save\n";
		2976	for my $login (keys %cf::PLAYER) {
		2977	my $pl = $cf::PLAYER{$login} or next;
		2978	$pl->valid or next;
		2979	$pl->save;
		2980	}
		2981	warn "end emergency player save\n";
		2982
		2983	warn "begin emergency map save\n";
		2984	for my $path (keys %cf::MAP) {
		2985	my $map = $cf::MAP{$path} or next;
		2986	$map->valid or next;
		2987	$map->save;
		2988	}
		2989	warn "end emergency map save\n";
		2990
		2991	warn "begin emergency database checkpoint\n";
		2992	BDB::db_env_txn_checkpoint $DB_ENV;
		2993	warn "end emergency database checkpoint\n";
		2994	};
		2995
		2996	warn "leave emergency perl save\n";
		2997	}
		2998
		2999	sub post_cleanup {
		3000	my ($make_core) = @_;
		3001
		3002	warn Carp::longmess "post_cleanup backtrace"
		3003	if $make_core;
		3004	}
		3005
1906	sub reload() {	3006	sub do_reload_perl() {
1907	# can/must only be called in main	3007	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	3008	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	3009	warn "can only reload from main coroutine";
1910	return;	3010	return;
1911	}	3011	}
1912		3012
1913	warn "reloading...";	3013	warn "reloading...";
1914		3014
1915	local $FREEZE = 1;	3015	warn "entering sync_job";
		3016
		3017	cf::sync_job {
		3018	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	3019	cf::emergency_save;
		3020	cf::write_runtime; # external watchdog should not bark
1917		3021
1918	eval {	3022	warn "syncing database to disk";
		3023	BDB::db_env_txn_checkpoint $DB_ENV;
		3024
1919	# if anything goes wrong in here, we should simply crash as we already saved	3025	# if anything goes wrong in here, we should simply crash as we already saved
1920		3026
1921	# cancel all watchers	3027	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	3028	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	3029	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	3030	}
1925		3031
		3032	warn "flushing outstanding aio requests";
		3033	for (;;) {
		3034	BDB::flush;
		3035	IO::AIO::flush;
		3036	Coro::cede;
		3037	last unless IO::AIO::nreqs || BDB::nreqs;
		3038	warn "iterate...";
		3039	}
		3040
		3041	++$RELOAD;
		3042
1926	# cancel all extension coros	3043	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	3044	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	3045	%EXT_CORO = ();
1929		3046
1930	# unload all extensions	3047	warn "removing commands";
1931	for (@exts) {	3048	%COMMAND = ();
		3049
		3050	warn "removing ext/exti commands";
		3051	%EXTCMD = ();
		3052	%EXTICMD = ();
		3053
		3054	warn "unloading/nuking all extensions";
		3055	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	3056	warn "... unloading $pkg";
1933	unload_extension $_;	3057
		3058	if (my $cb = $pkg->can ("unload")) {
		3059	eval {
		3060	$cb->($pkg);
		3061	1
		3062	} or warn "$pkg unloaded, but with errors: $@";
1934	}	3063	}
1935		3064
		3065	warn "... nuking $pkg";
		3066	Symbol::delete_package $pkg;
		3067	}
		3068
1936	# unload all modules loaded from $LIBDIR	3069	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	3070	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3071	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		3072
1940	warn "removing <$k>";	3073	warn "... unloading $k";
1941	delete $INC{$k};	3074	delete $INC{$k};
1942		3075
1943	$k =~ s/\.pm$//;	3076	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	3077	$k =~ s/\//::/g;
1945		3078
…		…
1948	}	3081	}
1949		3082
1950	Symbol::delete_package $k;	3083	Symbol::delete_package $k;
1951	}	3084	}
1952		3085
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	3086	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	3087	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3088	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		3089
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	3090	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	3091	delete $INC{"cf.pm"};
		3092	delete $INC{"cf/pod.pm"};
1966		3093
1967	# don't, removes xs symbols, too,	3094	# don't, removes xs symbols, too,
1968	# and global variables created in xs	3095	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	3096	#Symbol::delete_package __PACKAGE__;
1970		3097
1971	# reload cf.pm	3098	warn "unload completed, starting to reload now";
		3099
1972	warn "reloading cf.pm";	3100	warn "reloading cf.pm";
1973	require cf;	3101	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3102	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		3103
1976	# load config and database again	3104	warn "loading config and database again";
1977	cf::cfg_load;	3105	cf::cfg_load;
1978	cf::db_load;
1979		3106
1980	# load extensions
1981	warn "load extensions";	3107	warn "loading extensions";
1982	cf::load_extensions;	3108	cf::load_extensions;
1983		3109
1984	# reattach attachments to objects	3110	warn "reattaching attachments to objects/players";
1985	warn "reattach";	3111	_global_reattach; # objects, sockets
1986	_global_reattach;	3112	warn "reattaching attachments to maps";
1987	};	3113	reattach $_ for values %MAP;
		3114	warn "reattaching attachments to players";
		3115	reattach $_ for values %PLAYER;
1988		3116
1989	if ($@) {	3117	warn "leaving sync_job";
		3118
		3119	1
		3120	} or do {
1990	warn $@;	3121	warn $@;
1991	warn "error while reloading, exiting.";	3122	warn "error while reloading, exiting.";
1992	exit 1;	3123	exit 1;
1993	}	3124	};
1994		3125
1995	warn "reloaded successfully";	3126	warn "reloaded";
1996	};	3127	};
1997		3128
1998	#############################################################################	3129	our $RELOAD_WATCHER; # used only during reload
1999		3130
2000	unless ($LINK_MAP) {	3131	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	3132	# doing reload synchronously and two reloads happen back-to-back,
		3133	# coro crashes during coro_state_free->destroy here.
2002		3134
2003	$LINK_MAP->width (41);	3135	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	3136	reentrant => 0,
2005	$LINK_MAP->alloc;
2006	$LINK_MAP->path ("{link}");
2007	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2008	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2009
2010	# dirty hack because... archetypes are not yet loaded
2011	Event->timer (
2012	after => 2,	3137	after => 0,
		3138	data => WF_AUTOCANCEL,
2013	cb => sub {	3139	cb => sub {
2014	$_[0]->w->cancel;	3140	do_reload_perl;
2015		3141	undef $RELOAD_WATCHER;
2016	# provide some exits "home"
2017	my $exit = cf::object::new "exit";
2018
2019	$exit->slaying ($EMERGENCY_POSITION->[0]);
2020	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2021	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2022
2023	$LINK_MAP->insert ($exit->clone, 19, 19);
2024	$LINK_MAP->insert ($exit->clone, 19, 20);
2025	$LINK_MAP->insert ($exit->clone, 19, 21);
2026	$LINK_MAP->insert ($exit->clone, 20, 19);
2027	$LINK_MAP->insert ($exit->clone, 20, 21);
2028	$LINK_MAP->insert ($exit->clone, 21, 19);
2029	$LINK_MAP->insert ($exit->clone, 21, 20);
2030	$LINK_MAP->insert ($exit->clone, 21, 21);
2031
2032	$exit->destroy;
2033	});	3142	},
2034		3143	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	3144	}
2040
2041	register "<global>", __PACKAGE__;
2042		3145
2043	register_command "reload" => sub {	3146	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	3147	my ($who, $arg) = @_;
2045		3148
2046	if ($who->flag (FLAG_WIZ)) {	3149	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	3150	$who->message ("reloading server.");
		3151	async { reload_perl };
2050	}	3152	}
2051	};	3153	};
2052		3154
2053	unshift @INC, $LIBDIR;	3155	unshift @INC, $LIBDIR;
2054		3156
		3157	my $bug_warning = 0;
		3158
		3159	our @WAIT_FOR_TICK;
		3160	our @WAIT_FOR_TICK_BEGIN;
		3161
		3162	sub wait_for_tick {
		3163	return unless $TICK_WATCHER->is_active;
		3164	return if $Coro::current == $Coro::main;
		3165
		3166	my $signal = new Coro::Signal;
		3167	push @WAIT_FOR_TICK, $signal;
		3168	$signal->wait;
		3169	}
		3170
		3171	sub wait_for_tick_begin {
		3172	return unless $TICK_WATCHER->is_active;
		3173	return if $Coro::current == $Coro::main;
		3174
		3175	my $signal = new Coro::Signal;
		3176	push @WAIT_FOR_TICK_BEGIN, $signal;
		3177	$signal->wait;
		3178	}
		3179
		3180	my $min = 1e6;#d#
		3181	my $avg = 10;
2055	$TICK_WATCHER = Event->timer (	3182	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	3183	reentrant => 0,
		3184	parked => 1,
2057	prio => 0,	3185	prio => 0,
2058	at => $NEXT_TICK || $TICK,	3186	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	3187	data => WF_AUTOCANCEL,
2060	cb => sub {	3188	cb => sub {
2061	unless ($FREEZE) {	3189	if ($Coro::current != $Coro::main) {
		3190	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3191	unless ++$bug_warning > 10;
		3192	return;
		3193	}
		3194
		3195	$NOW = $tick_start = Event::time;
		3196
2062	cf::server_tick; # one server iteration	3197	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;	3198
		3199	0 && sync_job {#d#
		3200	for(1..10) {
		3201	my $t = Event::time;
		3202	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3203	or die;
		3204
		3205	$map->width (50);
		3206	$map->height (50);
		3207	$map->alloc;
		3208	$map->_load_objects ("/tmp/x.map", 1);
		3209	my $t = Event::time - $t;
		3210
		3211	#next unless $t < 0.0013;#d#
		3212	if ($t < $min) {
		3213	$min = $t;
		3214	}
		3215	$avg = $avg * 0.99 + $t * 0.01;
		3216	}
		3217	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3218	exit 0;
		3219	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2064	}	3220	};
2065		3221
		3222	$RUNTIME += $TICK;
2066	$NEXT_TICK += $TICK;	3223	$NEXT_TICK += $TICK;
2067		3224
		3225	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3226	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3227	Coro::async_pool {
		3228	write_runtime
		3229	or warn "ERROR: unable to write runtime file: $!";
		3230	};
		3231	}
		3232
		3233	# my $AFTER = Event::time;
		3234	# warn $AFTER - $NOW;#d#
		3235
		3236	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3237	$sig->send;
		3238	}
		3239	while (my $sig = shift @WAIT_FOR_TICK) {
		3240	$sig->send;
		3241	}
		3242
		3243	$NOW = Event::time;
		3244
2068	# if we are delayed by four ticks or more, skip them all	3245	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3246	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		3247
2071	$TICK_WATCHER->at ($NEXT_TICK);	3248	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	3249	$TICK_WATCHER->start;
		3250
		3251	$LOAD = ($NOW - $tick_start) / $TICK;
		3252	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3253
		3254	_post_tick;
		3255
		3256
2073	},	3257	},
2074	);	3258	);
2075		3259
		3260	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	3261	BDB::max_poll_time $TICK * 0.1;
2077		3262	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	3263	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	3264	fd => BDB::poll_fileno,
2080	poll => 'r',	3265	poll => 'r',
2081	prio => 5,	3266	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	3267	data => WF_AUTOCANCEL,
2088	after => 0,	3268	cb => \&BDB::poll_cb,
2089	interval => 10,	3269	);
2090	cb => sub {	3270	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	3271
2092	write_runtime	3272	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	3273	my $status;
		3274	my $current = $Coro::current;
		3275	(
		3276	sub {
		3277	$status = $!;
		3278	$current->ready; undef $current;
		3279	},
		3280	sub {
		3281	Coro::schedule while defined $current;
		3282	$! = $status;
		3283	},
		3284	)
		3285	};
		3286
		3287	unless ($DB_ENV) {
		3288	$DB_ENV = BDB::db_env_create;
		3289
		3290	cf::sync_job {
		3291	eval {
		3292	BDB::db_env_open
		3293	$DB_ENV,
		3294	$BDBDIR,
		3295	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3296	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3297	0666;
		3298
		3299	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3300
		3301	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3302	$DB_ENV->set_lk_detect;
		3303	};
		3304
		3305	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	3306	};
2095	},	3307	}
2096	);	3308	}
		3309
		3310	{
		3311	IO::AIO::min_parallel 8;
		3312
		3313	undef $Coro::AIO::WATCHER;
		3314	IO::AIO::max_poll_time $TICK * 0.1;
		3315	$AIO_POLL_WATCHER = Event->io (
		3316	reentrant => 0,
		3317	data => WF_AUTOCANCEL,
		3318	fd => IO::AIO::poll_fileno,
		3319	poll => 'r',
		3320	prio => 6,
		3321	cb => \&IO::AIO::poll_cb,
		3322	);
		3323	}
		3324
		3325	my $_log_backtrace;
		3326
		3327	sub _log_backtrace {
		3328	my ($msg, @addr) = @_;
		3329
		3330	$msg =~ s/\n//;
		3331
		3332	# limit the # of concurrent backtraces
		3333	if ($_log_backtrace < 2) {
		3334	++$_log_backtrace;
		3335	async {
		3336	my @bt = fork_call {
		3337	@addr = map { sprintf "%x", $_ } @addr;
		3338	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3339	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3340	or die "addr2line: $!";
		3341
		3342	my @funcs;
		3343	my @res = <$fh>;
		3344	chomp for @res;
		3345	while (@res) {
		3346	my ($func, $line) = splice @res, 0, 2, ();
		3347	push @funcs, "[$func] $line";
		3348	}
		3349
		3350	@funcs
		3351	};
		3352
		3353	LOG llevInfo, "[ABT] $msg\n";
		3354	LOG llevInfo, "[ABT] $_\n" for @bt;
		3355	--$_log_backtrace;
		3356	};
		3357	} else {
		3358	LOG llevInfo, "[ABT] $msg\n";
		3359	LOG llevInfo, "[ABT] [suppressed]\n";
		3360	}
		3361	}
		3362
		3363	# load additional modules
		3364	use cf::pod;
		3365
		3366	END { cf::emergency_save }
2097		3367
2098	1	3368	1
2099		3369

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