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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.119 by root, Tue Jan 2 08:26:42 2007 UTC vs.
Revision 1.319 by root, Tue Jul 24 15:56:45 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::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
		381	}
		382
		383	=item cf::async { BLOCK }
		384
		385	Currently the same as Coro::async_pool, meaning you cannot use
		386	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		387	thing you are allowed to do is call C<prio> on it.
		388
		389	=cut
		390
		391	BEGIN { *async = \&Coro::async_pool }
185		392
186	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
187		394
188	The design of crossfire+ requires that the main coro ($Coro::main) is	395	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	396	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.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
191		399
192	If it must be done, put the blocking parts into C<sync_job>. This will run	400	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	401	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	402	server will be frozen during this time, so the block should either finish
195	fast or be very important.	403	fast or be very important.
…		…
198		406
199	sub sync_job(&) {	407	sub sync_job(&) {
200	my ($job) = @_;	408	my ($job) = @_;
201		409
202	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
203	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
204	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
205		415
206	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
207	# (but this is cancel-safe)	417	# (but this is cancel-safe)
208	local $FREEZE = 1;	418	my $freeze_guard = freeze_mainloop;
209		419
210	my $busy = 1;	420	my $busy = 1;
211	my @res;	421	my @res;
212		422
213	(Coro::async {	423	(async {
214	@res = eval { $job->() };	424	@res = eval { $job->() };
215	warn $@ if $@;	425	warn $@ if $@;
216	undef $busy;	426	undef $busy;
217	})->prio (Coro::PRIO_MAX);	427	})->prio (Coro::PRIO_MAX);
218		428
219	while ($busy) {	429	while ($busy) {
220	Coro::cede_notself;	430	Coro::cede or Event::one_event;
221	Event::one_event unless Coro::nready;
222	}	431	}
		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
223		439
224	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
225	} else {	441	} else {
226	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
227		443
228	$job->()	444	$job->()
229	}	445	}
230	}	446	}
231		447
232	=item $coro = cf::coro { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
233		449
234	Creates and returns a new coro. This coro is automcatially being canceled	450	Like async, but this coro is automatically being canceled when the
235	when the extension calling this is being unloaded.	451	extension calling this is being unloaded.
236		452
237	=cut	453	=cut
238		454
239	sub coro(&) {	455	sub async_ext(&) {
240	my $cb = shift;	456	my $cb = shift;
241		457
242	my $coro; $coro = async {	458	my $coro = &Coro::async ($cb);
243	eval {
244	$cb->();
245	};
246	warn $@ if $@;
247	};
248		459
249	$coro->on_destroy (sub {	460	$coro->on_destroy (sub {
250	delete $EXT_CORO{$coro+0};	461	delete $EXT_CORO{$coro+0};
251	});	462	});
252	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
253		464
254	$coro	465	$coro
255	}	466	}
256		467
257	sub write_runtime {	468	=item fork_call { }, $args
258	my $runtime = cf::localdir . "/runtime";
259		469
260	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
261	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
262		474
263	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
264	(aio_write $fh, 0, (length $value), $value, 0) <= 0
265	and return;
266		476
267	aio_fsync $fh	477	sub _store_scalar {
268	and return;	478	open my $fh, ">", \my $buf
269		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
270	close $fh	481	close $fh;
271	or return;
272		482
273	aio_rename "$runtime~", $runtime	483	$buf
274	and return;	484	}
275		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
276	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
277	}	655	}
278		656
279	=back	657	=back
280		658
281	=cut	659	=cut
282
283	#############################################################################
284
285	package cf::path;
286
287	sub new {
288	my ($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		660
403	#############################################################################	661	#############################################################################
404		662
405	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
406		664
…		…
408	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
409	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
410		668
411	In the following description, CLASS can be any of C<global>, C<object>	669	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	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
413	crossfire+).	671	Crossfire TRT).
414		672
415	=over 4	673	=over 4
416		674
417	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
418		676
…		…
532	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
533	our @CB_MAP = ();	791	our @CB_MAP = ();
534		792
535	my %attachment;	793	my %attachment;
536		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
537	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
538	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
539		803
540	use sort 'stable';	804	use sort 'stable';
541		805
…		…
575	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
576		840
577	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
578	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
579	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
580	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
581		845
582	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
583	my $pkg = shift @arg;	847	my $pkg = shift @arg;
584		848
585	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
614	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
615	}	879	}
616		880
617	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
618	} else {	882	} else {
619	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
620	}	884	}
621		885
622	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
623	}	887	}
624		888
…		…
626	if (ref $_[0]) {	890	if (ref $_[0]) {
627	_object_attach @_;	891	_object_attach @_;
628	} else {	892	} else {
629	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
630	}	894	}
		895	_recalc_want;
631	};	896	};
632		897
633	# all those should be optimised	898	# all those should be optimised
634	sub cf::attachable::detach {	899	sub cf::attachable::detach {
635	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
638	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
639	reattach ($obj);	904	reattach ($obj);
640	} else {	905	} else {
641	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
642	}	907	}
		908	_recalc_want;
643	};	909	};
644		910
645	sub cf::attachable::attached {	911	sub cf::attachable::attached {
646	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
647		913
…		…
662	";	928	";
663	die if $@;	929	die if $@;
664	}	930	}
665		931
666	our $override;	932	our $override;
667	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
668		934
669	sub override {	935	sub override {
670	$override = 1;	936	$override = 1;
671	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
672	}	938	}
673		939
674	sub do_invoke {	940	sub do_invoke {
675	my $event = shift;	941	my $event = shift;
676	my $callbacks = shift;	942	my $callbacks = shift;
677		943
678	@invoke_results = ();	944	@INVOKE_RESULTS = ();
679		945
680	local $override;	946	local $override;
681		947
682	for (@$callbacks) {	948	for (@$callbacks) {
683	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
700		966
701	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
702		968
703	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	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	970	removed in future versions), and there is no public API to access override
705	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
706		972
707	=back	973	=back
708		974
709	=cut	975	=cut
710		976
711	#############################################################################	977	#############################################################################
712	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
713		990
714	sub reattach {	991	sub reattach {
715	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
716	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		996
718	my $registry = $obj->registry;	997	my $registry = $obj->registry;
719		998
720	@$registry = ();	999	@$registry = ();
721		1000
…		…
768	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
769		1048
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1053	close $fh;
775		1054
776	if (@$objs) {	1055	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
782	close $fh;	1061	close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
784	}	1063	}
785	} else {	1064	} else {
786	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
818	or return;	1097	or return;
819	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
820	}	1099	}
821		1100
822	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
824	return ($data, $av);	1103	return ($data, $av);
825	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
826		1111
827	#############################################################################	1112	#############################################################################
828	# command handling &c	1113	# command handling &c
829		1114
830	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1129	}
845		1130
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1132
848	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
849		1138
850	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
851	called.	1140	called.
852		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
853	=cut	1153	=cut
854		1154
855	sub register_extcmd {	1155	sub register_extcmd {
856	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
857		1157
858	my $caller = caller;
859	#warn "registering extcmd '$name' to '$caller'";
860
861	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
862	}	1165	}
863		1166
864	cf::player->attach (	1167	cf::player->attach (
865	on_command => sub {	1168	on_command => sub {
866	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
875	cf::override;	1178	cf::override;
876	},	1179	},
877	on_extcmd => sub {	1180	on_extcmd => sub {
878	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
879		1182
880	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
881		1184
882	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
883	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
884	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
885	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
886	}	1195	if $reply;
887	}	1196	}
888	} else {	1197	} else {
889	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
890	}	1199	}
891		1200
892	cf::override;	1201	cf::override;
893	},	1202	},
894	);	1203	);
895		1204
896	sub register {
897	my ($base, $pkg) = @_;
898
899	#TODO
900	}
901
902	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::find $login
		1297
		1298	Returns the given player object, loading it if necessary (might block).
		1299
		1300	=cut
		1301
		1302	sub playerdir($) {
		1303	"$PLAYERDIR/"
		1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1305	}
		1306
		1307	sub path($) {
		1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1309
		1310	(playerdir $login) . "/playerdata"
		1311	}
		1312
		1313	sub find_active($) {
		1314	$cf::PLAYER{$_[0]}
		1315	and $cf::PLAYER{$_[0]}->active
		1316	and $cf::PLAYER{$_[0]}
		1317	}
		1318
		1319	sub exists($) {
		1320	my ($login) = @_;
		1321
		1322	$cf::PLAYER{$login}
		1323	or cf::sync_job { !aio_stat path $login }
		1324	}
		1325
		1326	sub find($) {
		1327	return $cf::PLAYER{$_[0]} || do {
		1328	my $login = $_[0];
		1329
		1330	my $guard = cf::lock_acquire "user_find:$login";
		1331
		1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
		1340	my $pl = load_pl path $login
		1341	or return;
		1342	$cf::PLAYER{$login} = $pl
		1343	}
		1344	}
		1345	}
		1346
		1347	sub save($) {
		1348	my ($pl) = @_;
		1349
		1350	return if $pl->{deny_save};
		1351
		1352	my $path = path $pl;
		1353	my $guard = cf::lock_acquire "user_save:$path";
		1354
		1355	return if $pl->{deny_save};
		1356
		1357	aio_mkdir playerdir $pl, 0770;
		1358	$pl->{last_save} = $cf::RUNTIME;
		1359
		1360	$pl->save_pl ($path);
		1361	Coro::cede;
		1362	}
		1363
		1364	sub new($) {
		1365	my ($login) = @_;
		1366
		1367	my $self = create;
		1368
		1369	$self->ob->name ($login);
		1370	$self->{deny_save} = 1;
		1371
		1372	$cf::PLAYER{$login} = $self;
		1373
		1374	$self
		1375	}
		1376
		1377	=item $pl->quit_character
		1378
		1379	Nukes the player without looking back. If logged in, the connection will
		1380	be destroyed. May block for a long time.
		1381
		1382	=cut
		1383
		1384	sub quit_character {
		1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
		1388
		1389	$pl->{deny_save} = 1;
		1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1391
		1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1393	$pl->deactivate;
		1394	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1395	$pl->ns->destroy if $pl->ns;
		1396
		1397	my $path = playerdir $pl;
		1398	my $temp = "$path~$cf::RUNTIME~deleting~";
		1399	aio_rename $path, $temp;
		1400	delete $cf::PLAYER{$pl->ob->name};
		1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
		1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
		1423	}
		1424
		1425	=item cf::player::list_logins
		1426
		1427	Returns am arrayref of all valid playernames in the system, can take a
		1428	while and may block, so not sync_job-capable, ever.
		1429
		1430	=cut
		1431
		1432	sub list_logins {
		1433	my $dirs = aio_readdir $PLAYERDIR
		1434	or return [];
		1435
		1436	my @logins;
		1437
		1438	for my $login (@$dirs) {
		1439	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1440	aio_read $fh, 0, 512, my $buf, 0 or next;
		1441	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1442
		1443	utf8::decode $login;
		1444	push @logins, $login;
		1445	}
		1446
		1447	\@logins
		1448	}
		1449
		1450	=item $player->maps
		1451
		1452	Returns an arrayref of map paths that are private for this
		1453	player. May block.
		1454
		1455	=cut
		1456
		1457	sub maps($) {
		1458	my ($pl) = @_;
		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
		1461
		1462	my $files = aio_readdir playerdir $pl
		1463	or return;
		1464
		1465	my @paths;
		1466
		1467	for (@$files) {
		1468	utf8::decode $_;
		1469	next if /\.(?:pl|pst)$/;
		1470	next unless /^$PATH_SEP/o;
		1471
		1472	push @paths, cf::map::normalise "~$pl/$_";
		1473	}
		1474
		1475	\@paths
		1476	}
		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
		1528	=item $player->ext_reply ($msgid, @msg)
		1529
		1530	Sends an ext reply to the player.
		1531
		1532	=cut
		1533
		1534	sub ext_reply($$@) {
		1535	my ($self, $id, @msg) = @_;
		1536
		1537	if ($self->ns->extcmd == 2) {
		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
		1544	}
		1545
		1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
903	my ($path) = @_;	1573	my ($path) = @_;
904		1574
905	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1575	my ($match, $specificity);
906	my $base = $1;
907	my $pkg = $1;
908	$pkg =~ s/[^[:word:]]/_/g;
909	$pkg = "ext::$pkg";
910		1576
911	warn "loading '$path' into '$pkg'\n";	1577	for my $region (list) {
912		1578	if ($region->{match} && $path =~ $region->{match}) {
913	open my $fh, "<:utf8", $path	1579	($match, $specificity) = ($region, $region->specificity)
914	or die "$path: $!";	1580	if $region->specificity > $specificity;
915		1581	}
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	# }	1582	}
945		1583
946	# remove commands	1584	$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	}	1585	}
1052		1586
1053	=back	1587	=back
1054
1055		1588
1056	=head3 cf::map	1589	=head3 cf::map
1057		1590
1058	=over 4	1591	=over 4
1059		1592
…		…
1062	package cf::map;	1595	package cf::map;
1063		1596
1064	use Fcntl;	1597	use Fcntl;
1065	use Coro::AIO;	1598	use Coro::AIO;
1066		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
1067	our $MAX_RESET = 7200;	1604	our $MAX_RESET = 3600;
1068	our $DEFAULT_RESET = 3600;	1605	our $DEFAULT_RESET = 3000;
1069		1606
1070	sub generate_random_map {	1607	sub generate_random_map {
1071	my ($path, $rmp) = @_;	1608	my ($self, $rmp) = @_;
1072
1073	# mit "rum" bekleckern, nicht	1609	# mit "rum" bekleckern, nicht
1074	cf::map::_create_random_map	1610	$self->_create_random_map (
1075	$path,
1076	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1077	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1078	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1079	$rmp->{exit_on_final_map},	1614	$rmp->{exit_on_final_map},
1080	$rmp->{xsize}, $rmp->{ysize},	1615	$rmp->{xsize}, $rmp->{ysize},
1081	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1616	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1082	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1617	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1083	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1618	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1084	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1619	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1085	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1086	(cf::region::find $rmp->{region})	1621	(cf::region::find $rmp->{region}), $rmp->{custom}
		1622	)
		1623	}
		1624
		1625	=item cf::map->register ($regex, $prio)
		1626
		1627	Register a handler for the map path matching the given regex at the
		1628	givne priority (higher is better, built-in handlers have priority 0, the
		1629	default).
		1630
		1631	=cut
		1632
		1633	sub register {
		1634	my (undef, $regex, $prio) = @_;
		1635	my $pkg = caller;
		1636
		1637	no strict;
		1638	push @{"$pkg\::ISA"}, __PACKAGE__;
		1639
		1640	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1641	}
		1642
		1643	# also paths starting with '/'
		1644	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1645
		1646	sub thawer_merge {
		1647	my ($self, $merge) = @_;
		1648
		1649	# we have to keep some variables in memory intact
		1650	local $self->{path};
		1651	local $self->{load_path};
		1652
		1653	$self->SUPER::thawer_merge ($merge);
		1654	}
		1655
		1656	sub normalise {
		1657	my ($path, $base) = @_;
		1658
		1659	$path = "$path"; # make sure its a string
		1660
		1661	$path =~ s/\.map$//;
		1662
		1663	# map plan:
		1664	#
		1665	# /! non-realised random map exit (special hack!)
		1666	# {... are special paths that are not being touched
		1667	# ?xxx/... are special absolute paths
		1668	# ?random/... random maps
		1669	# /... normal maps
		1670	# ~user/... per-player map of a specific user
		1671
		1672	$path =~ s/$PATH_SEP/\//go;
		1673
		1674	# treat it as relative path if it starts with
		1675	# something that looks reasonable
		1676	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1677	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1678
		1679	$base =~ s{[^/]+/?$}{};
		1680	$path = "$base/$path";
		1681	}
		1682
		1683	for ($path) {
		1684	redo if s{//}{/};
		1685	redo if s{/\.?/}{/};
		1686	redo if s{/[^/]+/\.\./}{/};
		1687	}
		1688
		1689	$path
		1690	}
		1691
		1692	sub new_from_path {
		1693	my (undef, $path, $base) = @_;
		1694
		1695	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1696
		1697	$path = normalise $path, $base;
		1698
		1699	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1700	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1701	my $self = bless cf::map::new, $pkg;
		1702	$self->{path} = $path; $self->path ($path);
		1703	$self->init; # pass $1 etc.
		1704	return $self;
		1705	}
		1706	}
		1707
		1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1709	()
		1710	}
		1711
		1712	sub init {
		1713	my ($self) = @_;
		1714
		1715	$self
		1716	}
		1717
		1718	sub as_string {
		1719	my ($self) = @_;
		1720
		1721	"$self->{path}"
		1722	}
		1723
		1724	# the displayed name, this is a one way mapping
		1725	sub visible_name {
		1726	&as_string
		1727	}
		1728
		1729	# the original (read-only) location
		1730	sub load_path {
		1731	my ($self) = @_;
		1732
		1733	"$MAPDIR/$self->{path}.map"
		1734	}
		1735
		1736	# the temporary/swap location
		1737	sub save_path {
		1738	my ($self) = @_;
		1739
		1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1741	"$TMPDIR/$path.map"
		1742	}
		1743
		1744	# the unique path, undef == no special unique path
		1745	sub uniq_path {
		1746	my ($self) = @_;
		1747
		1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1749	"$UNIQUEDIR/$path"
1087	}	1750	}
1088		1751
1089	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1090	# all maps in C++...	1753	# all maps in C++...
1091	sub change_all_map_light {	1754	sub change_all_map_light {
1092	my ($change) = @_;	1755	my ($change) = @_;
1093		1756
1094	$_->change_map_light ($change) for values %cf::MAP;	1757	$_->change_map_light ($change)
		1758	for grep $_->outdoor, values %cf::MAP;
1095	}	1759	}
1096		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
		1769	sub unlink_save {
		1770	my ($self) = @_;
		1771
		1772	utf8::encode (my $save = $self->save_path);
		1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1775	}
		1776
1097	sub try_load_header($) {	1777	sub load_header_from($) {
1098	my ($path) = @_;	1778	my ($self, $path) = @_;
1099		1779
1100	utf8::encode $path;	1780	utf8::encode $path;
1101	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
1102	or return;	1785	or return;
1103		1786
1104	my $map = cf::map::new	1787	$self->{load_path} = $path;
		1788
		1789	1
		1790	}
		1791
		1792	sub load_header_orig {
		1793	my ($self) = @_;
		1794
		1795	$self->load_header_from ($self->load_path)
		1796	}
		1797
		1798	sub load_header_temp {
		1799	my ($self) = @_;
		1800
		1801	$self->load_header_from ($self->save_path)
		1802	}
		1803
		1804	sub prepare_temp {
		1805	my ($self) = @_;
		1806
		1807	$self->last_access ((delete $self->{last_access})
		1808	|| $cf::RUNTIME); #d#
		1809	# safety
		1810	$self->{instantiate_time} = $cf::RUNTIME
		1811	if $self->{instantiate_time} > $cf::RUNTIME;
		1812	}
		1813
		1814	sub prepare_orig {
		1815	my ($self) = @_;
		1816
		1817	$self->{load_original} = 1;
		1818	$self->{instantiate_time} = $cf::RUNTIME;
		1819	$self->last_access ($cf::RUNTIME);
		1820	$self->instantiate;
		1821	}
		1822
		1823	sub load_header {
		1824	my ($self) = @_;
		1825
		1826	if ($self->load_header_temp) {
		1827	$self->prepare_temp;
		1828	} else {
		1829	$self->load_header_orig
1105	or return;	1830	or return;
		1831	$self->prepare_orig;
		1832	}
1106		1833
1107	$map->load_header ($path)	1834	$self->{deny_reset} = 1
1108	or return;	1835	if $self->no_reset;
1109		1836
1110	$map->{load_path} = $path;	1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
1111		1839
1112	$map	1840	1
1113	}	1841	}
1114		1842
		1843	sub find;
1115	sub find_map {	1844	sub find {
1116	my ($path, $origin) = @_;	1845	my ($path, $origin) = @_;
1117		1846
1118	#warn "find_map<$path,$origin>\n";#d#
1119
1120	$path = new cf::path $path, $origin && $origin->path;	1847	$path = normalise $path, $origin && $origin->path;
1121	my $key = $path->as_string;
1122		1848
		1849	cf::lock_wait "map_find:$path";
		1850
1123	$cf::MAP{$key} || do {	1851	$cf::MAP{$path} || do {
1124	# do it the slow way	1852	my $guard = cf::lock_acquire "map_find:$path";
1125	my $map = try_load_header $path->save_path;	1853	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;	1854	or return;
1139		1855
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;	1856	$map->{last_save} = $cf::RUNTIME;
1152	$map->last_access ($cf::RUNTIME);
1153		1857
1154	if ($map->should_reset) {	1858	$map->load_header
		1859	or return;
		1860
		1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1862	# doing this can freeze the server in a sync job, obviously
		1863	#$cf::WAIT_FOR_TICK->wait;
1155	$map->reset;	1864	$map->reset;
1156	$map = find_map $path;	1865	undef $guard;
		1866	return find $path;
1157	}	1867	}
1158		1868
1159	$cf::MAP{$key} = $map	1869	$cf::MAP{$path} = $map
1160	}	1870	}
1161	}	1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
1162		1875
1163	sub load {	1876	sub load {
1164	my ($self) = @_;	1877	my ($self) = @_;
1165		1878
1166	return if $self->in_memory != cf::MAP_SWAPPED;	1879	local $self->{deny_reset} = 1; # loading can take a long time
1167
1168	$self->in_memory (cf::MAP_LOADING);
1169		1880
1170	my $path = $self->{path};	1881	my $path = $self->{path};
1171		1882
		1883	{
		1884	my $guard = cf::lock_acquire "map_load:$path";
		1885
		1886	return if $self->in_memory != cf::MAP_SWAPPED;
		1887
		1888	$self->in_memory (cf::MAP_LOADING);
		1889
1172	$self->alloc;	1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
1173	$self->load_objects ($self->{load_path}, 1)	1895	$self->_load_objects ($self->{load_path}, 1)
1174	or return;	1896	or return;
1175		1897
1176	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1177	if delete $self->{load_original};	1899	if delete $self->{load_original};
1178		1900
1179	if (my $uniq = $path->uniq_path) {	1901	if (my $uniq = $self->uniq_path) {
1180	utf8::encode $uniq;	1902	utf8::encode $uniq;
1181	if (aio_open $uniq, O_RDONLY, 0) {	1903	if (aio_open $uniq, O_RDONLY, 0) {
1182	$self->clear_unique_items;	1904	$self->clear_unique_items;
1183	$self->load_objects ($uniq, 0);	1905	$self->_load_objects ($uniq, 0);
1184	}	1906	}
1185	}	1907	}
1186		1908
		1909	Coro::cede;
1187	# now do the right thing for maps	1910	# now do the right thing for maps
1188	$self->link_multipart_objects;	1911	$self->link_multipart_objects;
1189
1190	if ($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)	1912	$self->difficulty ($self->estimate_difficulty)
1199	unless $self->difficulty;	1913	unless $self->difficulty;
		1914	Coro::cede;
		1915
		1916	unless ($self->{deny_activate}) {
		1917	$self->decay_objects;
		1918	$self->fix_auto_apply;
		1919	$self->update_buttons;
		1920	Coro::cede;
		1921	$self->set_darkness_map;
		1922	Coro::cede;
1200	$self->activate;	1923	$self->activate;
1201	}	1924	}
1202		1925
1203	$self->in_memory (cf::MAP_IN_MEMORY);	1926	$self->in_memory (cf::MAP_IN_MEMORY);
1204	}	1927	}
1205		1928
1206	sub load_map_sync {	1929	$self->post_load;
		1930	}
		1931
		1932	sub customise_for {
		1933	my ($self, $ob) = @_;
		1934
		1935	return find "~" . $ob->name . "/" . $self->{path}
		1936	if $self->per_player;
		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
		1940
		1941	$self
		1942	}
		1943
		1944	# find and load all maps in the 3x3 area around a map
		1945	sub load_diag {
		1946	my ($map) = @_;
		1947
		1948	my @diag; # diagonal neighbours
		1949
		1950	for (0 .. 3) {
		1951	my $neigh = $map->tile_path ($_)
		1952	or next;
		1953	$neigh = find $neigh, $map
		1954	or next;
		1955	$neigh->load;
		1956
		1957	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1958	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1959	}
		1960
		1961	for (@diag) {
		1962	my $neigh = find @$_
		1963	or next;
		1964	$neigh->load;
		1965	}
		1966	}
		1967
		1968	sub find_sync {
1207	my ($path, $origin) = @_;	1969	my ($path, $origin) = @_;
1208		1970
1209	#warn "load_map_sync<$path, $origin>\n";#d#	1971	cf::sync_job { find $path, $origin }
		1972	}
1210		1973
1211	cf::sync_job {	1974	sub do_load_sync {
1212	my $map = cf::map::find_map $path, $origin	1975	my ($map) = @_;
1213	or return;	1976
		1977	cf::sync_job { $map->load };
		1978	}
		1979
		1980	our %MAP_PREFETCH;
		1981	our $MAP_PREFETCHER = undef;
		1982
		1983	sub find_async {
		1984	my ($path, $origin) = @_;
		1985
		1986	$path = normalise $path, $origin && $origin->{path};
		1987
		1988	if (my $map = $cf::MAP{$path}) {
		1989	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1990	}
		1991
		1992	undef $MAP_PREFETCH{$path};
		1993	$MAP_PREFETCHER ||= cf::async {
		1994	while (%MAP_PREFETCH) {
		1995	for my $path (keys %MAP_PREFETCH) {
		1996	if (my $map = find $path) {
1214	$map->load;	1997	$map->load;
1215	$map	1998	}
		1999
		2000	delete $MAP_PREFETCH{$path};
		2001	}
		2002	}
		2003	undef $MAP_PREFETCHER;
1216	}	2004	};
		2005	$MAP_PREFETCHER->prio (6);
		2006
		2007	()
1217	}	2008	}
1218		2009
1219	sub save {	2010	sub save {
1220	my ($self) = @_;	2011	my ($self) = @_;
1221		2012
		2013	my $lock = cf::lock_acquire "map_data:" . $self->path;
		2014
1222	$self->{last_save} = $cf::RUNTIME;	2015	$self->{last_save} = $cf::RUNTIME;
1223		2016
1224	return unless $self->dirty;	2017	return unless $self->dirty;
1225		2018
1226	my $save = $self->{path}->save_path; utf8::encode $save;	2019	my $save = $self->save_path; utf8::encode $save;
1227	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2020	my $uniq = $self->uniq_path; utf8::encode $uniq;
1228		2021
1229	$self->{load_path} = $save;	2022	$self->{load_path} = $save;
1230		2023
1231	return if $self->{deny_save};	2024	return if $self->{deny_save};
1232		2025
		2026	local $self->{last_access} = $self->last_access;#d#
		2027
		2028	cf::async {
		2029	$_->contr->save for $self->players;
		2030	};
		2031
1233	if ($uniq) {	2032	if ($uniq) {
1234	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2033	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1235	$self->save_objects ($uniq, cf::IO_UNIQUES);	2034	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1236	} else {	2035	} else {
1237	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1238	}	2037	}
1239	}	2038	}
1240		2039
1241	sub swap_out {	2040	sub swap_out {
1242	my ($self) = @_;	2041	my ($self) = @_;
		2042
		2043	# save first because save cedes
		2044	$self->save;
		2045
		2046	my $lock = cf::lock_acquire "map_data:" . $self->path;
1243		2047
1244	return if $self->players;	2048	return if $self->players;
1245	return if $self->in_memory != cf::MAP_IN_MEMORY;	2049	return if $self->in_memory != cf::MAP_IN_MEMORY;
1246	return if $self->{deny_save};	2050	return if $self->{deny_save};
1247		2051
1248	$self->save;
1249	$self->clear;	2052	$self->clear;
1250	$self->in_memory (cf::MAP_SWAPPED);	2053	$self->in_memory (cf::MAP_SWAPPED);
1251	}	2054	}
1252		2055
1253	sub reset_at {	2056	sub reset_at {
1254	my ($self) = @_;	2057	my ($self) = @_;
1255		2058
1256	# TODO: safety, remove and allow resettable per-player maps	2059	# TODO: safety, remove and allow resettable per-player maps
1257	return 1e99 if $self->{path}{user_rel};
1258	return 1e99 if $self->{deny_reset};	2060	return 1e99 if $self->{deny_reset};
1259		2061
1260	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1261	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1262		2064
…		…
1267	my ($self) = @_;	2069	my ($self) = @_;
1268		2070
1269	$self->reset_at <= $cf::RUNTIME	2071	$self->reset_at <= $cf::RUNTIME
1270	}	2072	}
1271		2073
1272	sub unlink_save {
1273	my ($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	$self->save;
1291	}
1292
1293	sub reset {	2074	sub reset {
1294	my ($self) = @_;	2075	my ($self) = @_;
1295		2076
		2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2078
1296	return if $self->players;	2079	return if $self->players;
1297	return if $self->{path}{user_rel};#d#
1298		2080
1299	warn "resetting map ", $self->path;#d#	2081	warn "resetting map ", $self->path;
		2082
		2083	$self->in_memory (cf::MAP_SWAPPED);
		2084
		2085	# need to save uniques path
		2086	unless ($self->{deny_save}) {
		2087	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2088
		2089	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2090	if $uniq;
		2091	}
1300		2092
1301	delete $cf::MAP{$self->path};	2093	delete $cf::MAP{$self->path};
		2094
		2095	$self->clear;
1302		2096
1303	$_->clear_links_to ($self) for values %cf::MAP;	2097	$_->clear_links_to ($self) for values %cf::MAP;
1304		2098
1305	$self->unlink_save;	2099	$self->unlink_save;
1306	$self->destroy;	2100	$self->destroy;
…		…
1309	my $nuke_counter = "aaaa";	2103	my $nuke_counter = "aaaa";
1310		2104
1311	sub nuke {	2105	sub nuke {
1312	my ($self) = @_;	2106	my ($self) = @_;
1313		2107
		2108	delete $cf::MAP{$self->path};
		2109
		2110	$self->unlink_save;
		2111
		2112	bless $self, "cf::map";
		2113	delete $self->{deny_reset};
1314	$self->{deny_save} = 1;	2114	$self->{deny_save} = 1;
1315	$self->reset_timeout (1);	2115	$self->reset_timeout (1);
1316	$self->rename ("{nuke}/" . ($nuke_counter++));	2116	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2117
		2118	$cf::MAP{$self->path} = $self;
		2119
1317	$self->reset; # polite request, might not happen	2120	$self->reset; # polite request, might not happen
1318	}	2121	}
1319		2122
1320	sub customise_for {	2123	=item $maps = cf::map::tmp_maps
1321	my ($map, $ob) = @_;
1322		2124
1323	if ($map->per_player) {	2125	Returns an arrayref with all map paths of currently instantiated and saved
1324	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2126	maps. May block.
		2127
		2128	=cut
		2129
		2130	sub tmp_maps() {
1325	}	2131	[
1326		2132	map {
1327	$map	2133	utf8::decode $_;
		2134	/\.map$/
		2135	? normalise $_
		2136	: ()
		2137	} @{ aio_readdir $TMPDIR or [] }
		2138	]
1328	}	2139	}
1329		2140
1330	sub emergency_save {	2141	=item $maps = cf::map::random_maps
1331	local $cf::FREEZE = 1;
1332		2142
1333	warn "enter emergency map save\n";	2143	Returns an arrayref with all map paths of currently instantiated and saved
		2144	random maps. May block.
1334		2145
1335	cf::sync_job {	2146	=cut
1336	warn "begin emergency map save\n";
1337	$_->save for values %cf::MAP;
1338	};
1339		2147
1340	warn "end emergency map save\n";	2148	sub random_maps() {
		2149	[
		2150	map {
		2151	utf8::decode $_;
		2152	/\.map$/
		2153	? normalise "?random/$_"
		2154	: ()
		2155	} @{ aio_readdir $RANDOMDIR or [] }
		2156	]
		2157	}
		2158
		2159	=item cf::map::unique_maps
		2160
		2161	Returns an arrayref of paths of all shared maps that have
		2162	instantiated unique items. May block.
		2163
		2164	=cut
		2165
		2166	sub unique_maps() {
		2167	[
		2168	map {
		2169	utf8::decode $_;
		2170	/\.map$/
		2171	? normalise $_
		2172	: ()
		2173	} @{ aio_readdir $UNIQUEDIR or [] }
		2174	]
1341	}	2175	}
1342		2176
1343	package cf;	2177	package cf;
1344		2178
1345	=back	2179	=back
1346		2180
		2181	=head3 cf::object
		2182
		2183	=cut
		2184
		2185	package cf::object;
		2186
		2187	=over 4
		2188
		2189	=item $ob->inv_recursive
		2190
		2191	Returns the inventory of the object _and_ their inventories, recursively.
		2192
		2193	=cut
		2194
		2195	sub inv_recursive_;
		2196	sub inv_recursive_ {
		2197	map { $_, inv_recursive_ $_->inv } @_
		2198	}
		2199
		2200	sub inv_recursive {
		2201	inv_recursive_ inv $_[0]
		2202	}
		2203
		2204	package cf;
		2205
		2206	=back
1347		2207
1348	=head3 cf::object::player	2208	=head3 cf::object::player
1349		2209
1350	=over 4	2210	=over 4
1351		2211
…		…
1365		2225
1366	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1367		2227
1368	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
1369	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
1370	} else {	2231	} else {
		2232	my $pl = $self->contr;
		2233
		2234	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2235	my $dialog = $pl->{npc_dialog};
		2236	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2237
		2238	} else {
1371	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
1372	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
1373	}	2242	}
1374	}	2243	}
1375		2244
1376	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
1377		2246
…		…
1391		2260
1392	=item $player_object->enter_link	2261	=item $player_object->enter_link
1393		2262
1394	Freezes the player and moves him/her to a special map (C<{link}>).	2263	Freezes the player and moves him/her to a special map (C<{link}>).
1395		2264
1396	The player should be reaosnably safe there for short amounts of time. You	2265	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.	2266	I<MUST> call C<leave_link> as soon as possible, though.
1398		2267
		2268	Will never block.
		2269
1399	=item $player_object->leave_link ($map, $x, $y)	2270	=item $player_object->leave_link ($map, $x, $y)
1400		2271
1401	Moves the player out of the specila link map onto the given map. If the	2272	Moves the player out of the special C<{link}> map onto the specified
1402	map is not valid (or omitted), the player will be moved back to the	2273	map. If the map is not valid (or omitted), the player will be moved back
1403	location he/she was before the call to C<enter_link>, or, if that fails,	2274	to the location he/she was before the call to C<enter_link>, or, if that
1404	to the emergency map position.	2275	fails, to the emergency map position.
1405		2276
1406	Might block.	2277	Might block.
1407		2278
1408	=cut	2279	=cut
		2280
		2281	sub link_map {
		2282	unless ($LINK_MAP) {
		2283	$LINK_MAP = cf::map::find "{link}"
		2284	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2285	$LINK_MAP->load;
		2286	}
		2287
		2288	$LINK_MAP
		2289	}
1409		2290
1410	sub cf::object::player::enter_link {	2291	sub cf::object::player::enter_link {
1411	my ($self) = @_;	2292	my ($self) = @_;
1412		2293
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;	2294	$self->deactivate_recursive;
		2295
		2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2297
		2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2299	if $self->map && $self->map->{path} ne "{link}";
		2300
		2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1420	}	2302	}
1421		2303
1422	sub cf::object::player::leave_link {	2304	sub cf::object::player::leave_link {
1423	my ($self, $map, $x, $y) = @_;	2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
1424		2308
1425	my $link_pos = delete $self->{_link_pos};	2309	my $link_pos = delete $self->{_link_pos};
1426		2310
1427	unless ($map) {	2311	unless ($map) {
1428	# restore original map position	2312	# restore original map position
1429	($map, $x, $y) = @{ $link_pos || [] };	2313	($map, $x, $y) = @{ $link_pos || [] };
1430	$map = cf::map::find_map $map;	2314	$map = cf::map::find $map;
1431		2315
1432	unless ($map) {	2316	unless ($map) {
1433	($map, $x, $y) = @$EMERGENCY_POSITION;	2317	($map, $x, $y) = @$EMERGENCY_POSITION;
1434	$map = cf::map::find_map $map	2318	$map = cf::map::find $map
1435	or die "FATAL: cannot load emergency map\n";	2319	or die "FATAL: cannot load emergency map\n";
1436	}	2320	}
1437	}	2321	}
1438		2322
1439	($x, $y) = (-1, -1)	2323	($x, $y) = (-1, -1)
…		…
1442	# use -1 or undef as default coordinates, not 0, 0	2326	# use -1 or undef as default coordinates, not 0, 0
1443	($x, $y) = ($map->enter_x, $map->enter_y)	2327	($x, $y) = ($map->enter_x, $map->enter_y)
1444	if $x <=0 && $y <= 0;	2328	if $x <=0 && $y <= 0;
1445		2329
1446	$map->load;	2330	$map->load;
		2331	$map->load_diag;
1447		2332
		2333	return unless $self->contr->active;
1448	$self->activate_recursive;	2334	$self->activate_recursive;
		2335
		2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1449	$self->enter_map ($map, $x, $y);	2337	$self->enter_map ($map, $x, $y);
1450	}	2338	}
1451		2339
1452	=item $player_object->goto_map ($path, $x, $y)	2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1453		2341
1454	=cut	2342	Moves the player to the given map-path and coordinates by first freezing
		2343	her, loading and preparing them map, calling the provided $check callback
		2344	that has to return the map if sucecssful, and then unfreezes the player on
		2345	the new (success) or old (failed) map position. In either case, $done will
		2346	be called at the end of this process.
1455		2347
		2348	=cut
		2349
		2350	our $GOTOGEN;
		2351
1456	sub cf::object::player::goto_map {	2352	sub cf::object::player::goto {
1457	my ($self, $path, $x, $y) = @_;	2353	my ($self, $path, $x, $y, $check, $done) = @_;
		2354
		2355	# do generation counting so two concurrent goto's will be executed in-order
		2356	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1458		2357
1459	$self->enter_link;	2358	$self->enter_link;
1460		2359
1461	(Coro::async {	2360	(async {
1462	$path = new cf::path $path;	2361	my $map = eval {
1463
1464	my $map = cf::map::find_map $path->as_string;	2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
1465	$map = $map->customise_for ($self) if $map;	2365	$map = $map->customise_for ($self);
1466		2366	$map = $check->($map) if $check && $map;
1467	# warn "entering ", $map->path, " at ($x, $y)\n"	2367	} else {
1468	# if $map;
1469
1470	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2368	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2369	}
1471		2370
		2371	$map
		2372	};
		2373
		2374	if ($@) {
		2375	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2376	LOG llevError | logBacktrace, Carp::longmess $@;
		2377	}
		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
1472	$self->leave_link ($map, $x, $y);	2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
1473	})->prio (1);	2385	})->prio (1);
1474	}	2386	}
1475		2387
1476	=item $player_object->enter_exit ($exit_object)	2388	=item $player_object->enter_exit ($exit_object)
1477		2389
…		…
1479		2391
1480	sub parse_random_map_params {	2392	sub parse_random_map_params {
1481	my ($spec) = @_;	2393	my ($spec) = @_;
1482		2394
1483	my $rmp = { # defaults	2395	my $rmp = { # defaults
1484	xsize => 10,	2396	xsize => (cf::rndm 15, 40),
1485	ysize => 10,	2397	ysize => (cf::rndm 15, 40),
		2398	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2399	#layout => string,
1486	};	2400	};
1487		2401
1488	for (split /\n/, $spec) {	2402	for (split /\n/, $spec) {
1489	my ($k, $v) = split /\s+/, $_, 2;	2403	my ($k, $v) = split /\s+/, $_, 2;
1490		2404
…		…
1494	$rmp	2408	$rmp
1495	}	2409	}
1496		2410
1497	sub prepare_random_map {	2411	sub prepare_random_map {
1498	my ($exit) = @_;	2412	my ($exit) = @_;
		2413
		2414	my $guard = cf::lock_acquire "exit_prepare:$exit";
1499		2415
1500	# all this does is basically replace the /! path by	2416	# all this does is basically replace the /! path by
1501	# a new random map path (?random/...) with a seed	2417	# a new random map path (?random/...) with a seed
1502	# that depends on the exit object	2418	# that depends on the exit object
1503		2419
1504	my $rmp = parse_random_map_params $exit->msg;	2420	my $rmp = parse_random_map_params $exit->msg;
1505		2421
1506	if ($exit->map) {	2422	if ($exit->map) {
1507	$rmp->{region} = $exit->map->region_name;	2423	$rmp->{region} = $exit->region->name;
1508	$rmp->{origin_map} = $exit->map->path;	2424	$rmp->{origin_map} = $exit->map->path;
1509	$rmp->{origin_x} = $exit->x;	2425	$rmp->{origin_x} = $exit->x;
1510	$rmp->{origin_y} = $exit->y;	2426	$rmp->{origin_y} = $exit->y;
1511	}	2427	}
1512		2428
1513	$rmp->{random_seed} ||= $exit->random_seed;	2429	$rmp->{random_seed} ||= $exit->random_seed;
1514		2430
1515	my $data = cf::to_json $rmp;	2431	my $data = cf::to_json $rmp;
1516	my $md5 = Digest::MD5::md5_hex $data;	2432	my $md5 = Digest::MD5::md5_hex $data;
		2433	my $meta = "$RANDOMDIR/$md5.meta";
1517		2434
1518	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2435	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1519	aio_write $fh, 0, (length $data), $data, 0;	2436	aio_write $fh, 0, (length $data), $data, 0;
		2437	undef $fh;
		2438	aio_rename "$meta~", $meta;
1520		2439
1521	$exit->slaying ("?random/$md5");	2440	$exit->slaying ("?random/$md5");
1522	$exit->msg (undef);	2441	$exit->msg (undef);
1523	}	2442	}
1524	}	2443	}
…		…
1526	sub cf::object::player::enter_exit {	2445	sub cf::object::player::enter_exit {
1527	my ($self, $exit) = @_;	2446	my ($self, $exit) = @_;
1528		2447
1529	return unless $self->type == cf::PLAYER;	2448	return unless $self->type == cf::PLAYER;
1530		2449
		2450	if ($exit->slaying eq "/!") {
		2451	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2452	# the problem is that $exit might not survive long enough
		2453	# so it needs to be done right now, right here
		2454	cf::sync_job { prepare_random_map $exit };
		2455	}
		2456
		2457	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2458	my $hp = $exit->stats->hp;
		2459	my $sp = $exit->stats->sp;
		2460
1531	$self->enter_link;	2461	$self->enter_link;
1532		2462
		2463	# if exit is damned, update players death & WoR home-position
		2464	$self->contr->savebed ($slaying, $hp, $sp)
		2465	if $exit->flag (FLAG_DAMNED);
		2466
1533	(Coro::async {	2467	(async {
		2468	$self->deactivate_recursive; # just to be sure
1534	unless (eval {	2469	unless (eval {
1535		2470	$self->goto ($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		2471
1542	1;	2472	1;
1543	}) {	2473	}) {
1544	$self->message ("Something went wrong deep within the crossfire server. "	2474	$self->message ("Something went wrong deep within the crossfire server. "
1545	. "I'll try to bring you back to the map you were before. "	2475	. "I'll try to bring you back to the map you were before. "
1546	. "Please report this to the dungeon master",	2476	. "Please report this to the dungeon master!",
1547	cf::NDI_UNIQUE | cf::NDI_RED);	2477	cf::NDI_UNIQUE | cf::NDI_RED);
1548		2478
1549	warn "ERROR in enter_exit: $@";	2479	warn "ERROR in enter_exit: $@";
1550	$self->leave_link;	2480	$self->leave_link;
1551	}	2481	}
1552	})->prio (1);	2482	})->prio (1);
…		…
1565		2495
1566	sub cf::client::send_drawinfo {	2496	sub cf::client::send_drawinfo {
1567	my ($self, $text, $flags) = @_;	2497	my ($self, $text, $flags) = @_;
1568		2498
1569	utf8::encode $text;	2499	utf8::encode $text;
1570	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2500	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1571	}	2501	}
1572		2502
		2503	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	Send a drawinfo or msg packet to the client, formatting the msg for the
		2506	client if neccessary. C<$type> should be a string identifying the type of
		2507	the message, with C<log> being the default. If C<$color> is negative, suppress
		2508	the message unless the client supports the msg packet.
		2509
		2510	=cut
		2511
		2512	sub cf::client::send_msg {
		2513	my ($self, $channel, $msg, $color, @extra) = @_;
		2514
		2515	$msg = $self->pl->expand_cfpod ($msg);
		2516
		2517	$color &= ~cf::NDI_UNIQUE; # just in case...
		2518
		2519	if (ref $channel) {
		2520	# send meta info to client, if not yet sent
		2521	unless (exists $self->{channel}{$channel->{id}}) {
		2522	$self->{channel}{$channel->{id}} = $channel;
		2523	$self->ext_msg (channel_info => $channel);
		2524	}
		2525
		2526	$channel = $channel->{id};
		2527	}
		2528
		2529	return unless @extra || length $msg;
		2530
		2531	if ($self->can_msg) {
		2532	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2533	} else {
		2534	# replace some tags by gcfclient-compatible ones
		2535	for ($msg) {
		2536	1 while
		2537	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2538	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2539	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2540	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2541	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2542	}
		2543
		2544	if ($color >= 0) {
		2545	if (0 && $msg =~ /\[/) {
		2546	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2547	} else {
		2548	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2549	$self->send_packet ("drawinfo $color $msg")
		2550	}
		2551	}
		2552	}
		2553	}
		2554
		2555	=item $client->ext_msg ($type, @msg)
		2556
		2557	Sends an ext event to the client.
		2558
		2559	=cut
		2560
		2561	sub cf::client::ext_msg($$@) {
		2562	my ($self, $type, @msg) = @_;
		2563
		2564	my $extcmd = $self->extcmd;
		2565
		2566	if ($extcmd == 2) {
		2567	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2568	} elsif ($extcmd == 1) { # TODO: remove
		2569	push @msg, msgtype => "event_$type";
		2570	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2571	}
		2572	}
1573		2573
1574	=item $success = $client->query ($flags, "text", \&cb)	2574	=item $success = $client->query ($flags, "text", \&cb)
1575		2575
1576	Queues a query to the client, calling the given callback with	2576	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>,	2577	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>.	2578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1579		2579
1580	Queries can fail, so check the return code. Or don't, as queries will become	2580	Queries can fail, so check the return code. Or don't, as queries will
1581	reliable at some point in the future.	2581	become reliable at some point in the future.
1582		2582
1583	=cut	2583	=cut
1584		2584
1585	sub cf::client::query {	2585	sub cf::client::query {
1586	my ($self, $flags, $text, $cb) = @_;	2586	my ($self, $flags, $text, $cb) = @_;
…		…
1594	utf8::encode $text;	2594	utf8::encode $text;
1595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1596		2596
1597	$self->send_packet ($self->{query_queue}[0][0])	2597	$self->send_packet ($self->{query_queue}[0][0])
1598	if @{ $self->{query_queue} } == 1;	2598	if @{ $self->{query_queue} } == 1;
		2599
		2600	1
1599	}	2601	}
1600		2602
1601	cf::client->attach (	2603	cf::client->attach (
		2604	on_connect => sub {
		2605	my ($ns) = @_;
		2606
		2607	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2608	},
1602	on_reply => sub {	2609	on_reply => sub {
1603	my ($ns, $msg) = @_;	2610	my ($ns, $msg) = @_;
1604		2611
1605	# this weird shuffling is so that direct followup queries	2612	# this weird shuffling is so that direct followup queries
1606	# get handled first	2613	# get handled first
1607	my $queue = delete $ns->{query_queue};	2614	my $queue = delete $ns->{query_queue}
		2615	or return; # be conservative, not sure how that can happen, but we saw a crash here
1608		2616
1609	(shift @$queue)->[1]->($msg);	2617	(shift @$queue)->[1]->($msg);
		2618	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1610		2619
1611	push @{ $ns->{query_queue} }, @$queue;	2620	push @{ $ns->{query_queue} }, @$queue;
1612		2621
1613	if (@{ $ns->{query_queue} } == @$queue) {	2622	if (@{ $ns->{query_queue} } == @$queue) {
1614	if (@$queue) {	2623	if (@$queue) {
…		…
1616	} else {	2625	} else {
1617	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2626	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1618	}	2627	}
1619	}	2628	}
1620	},	2629	},
		2630	on_exticmd => sub {
		2631	my ($ns, $buf) = @_;
		2632
		2633	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2634
		2635	if (ref $msg) {
		2636	my ($type, $reply, @payload) =
		2637	"ARRAY" eq ref $msg
		2638	? @$msg
		2639	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2640
		2641	if (my $cb = $EXTICMD{$type}) {
		2642	my @reply = $cb->($ns, @payload);
		2643
		2644	$ns->ext_reply ($reply, @reply)
		2645	if $reply;
		2646	}
		2647	} else {
		2648	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2649	}
		2650
		2651	cf::override;
		2652	},
1621	);	2653	);
1622		2654
1623	=item $client->coro (\&cb)	2655	=item $client->async (\&cb)
1624		2656
1625	Create a new coroutine, running the specified callback. The coroutine will	2657	Create a new coroutine, running the specified callback. The coroutine will
1626	be automatically cancelled when the client gets destroyed (e.g. on logout,	2658	be automatically cancelled when the client gets destroyed (e.g. on logout,
1627	or loss of connection).	2659	or loss of connection).
1628		2660
1629	=cut	2661	=cut
1630		2662
1631	sub cf::client::coro {	2663	sub cf::client::async {
1632	my ($self, $cb) = @_;	2664	my ($self, $cb) = @_;
1633		2665
1634	my $coro; $coro = async {	2666	my $coro = &Coro::async ($cb);
1635	eval {
1636	$cb->();
1637	};
1638	warn $@ if $@;
1639	};
1640		2667
1641	$coro->on_destroy (sub {	2668	$coro->on_destroy (sub {
1642	delete $self->{_coro}{$coro+0};	2669	delete $self->{_coro}{$coro+0};
1643	});	2670	});
1644		2671
…		…
1677		2704
1678	# here we export the classes and methods available to script code	2705	# here we export the classes and methods available to script code
1679		2706
1680	=pod	2707	=pod
1681		2708
1682	The following fucntions and emthods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
1683		2710
1684	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove
		2714
1685	cf::object::player player	2715	cf::object::player
1686	cf::player peaceful	2716	player
1687	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
1688		2723
1689	=cut	2724	=cut
1690		2725
1691	for (	2726	for (
1692	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove)],
1693	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
1694	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
1695	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
1696	) {	2732	) {
1697	no strict 'refs';	2733	no strict 'refs';
…		…
1768	=back	2804	=back
1769		2805
1770	=cut	2806	=cut
1771		2807
1772	#############################################################################	2808	#############################################################################
		2809	# the server's init and main functions
1773		2810
1774	=head2 EXTENSION DATABASE SUPPORT	2811	sub load_facedata($) {
		2812	my ($path) = @_;
1775		2813
1776	Crossfire maintains a very simple database for extension use. It can	2814	warn "loading facedata from $path\n";
1777	currently store anything that can be serialised using Storable, which
1778	excludes objects.
1779		2815
1780	The parameter C<$family> should best start with the name of the extension	2816	my $facedata;
1781	using it, it should be unique.	2817	0 < aio_load $path, $facedata
		2818	or die "$path: $!";
1782		2819
1783	=over 4	2820	$facedata = Coro::Storable::thaw $facedata;
1784		2821
1785	=item $hashref = cf::db_get $family	2822	$facedata->{version} == 2
		2823	or cf::cleanup "$path: version mismatch, cannot proceed.";
1786		2824
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	}	2825	{
		2826	my $faces = $facedata->{faceinfo};
1824		2827
1825	my $pid;	2828	while (my ($face, $info) = each %$faces) {
		2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
		2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1826		2834
1827	sub db_save() {	2835	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]} = $_[1];
1865	}
1866	db_dirty;
1867	}
1868
1869	cf::global->attach (
1870	prio => 10000,
1871	on_cleanup => sub {
1872	db_sync;
1873	},	2836	}
1874	);
1875	}
1876		2837
1877	#############################################################################	2838	while (my ($face, $info) = each %$faces) {
1878	# the server's main()	2839	next unless $info->{smooth};
		2840	my $idx = cf::face::find $face
		2841	or next;
		2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
		2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2845	} else {
		2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2847	}
		2848
		2849	cf::cede_to_tick;
		2850	}
		2851	}
		2852
		2853	{
		2854	my $anims = $facedata->{animinfo};
		2855
		2856	while (my ($anim, $info) = each %$anims) {
		2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2858	cf::cede_to_tick;
		2859	}
		2860
		2861	cf::anim::invalidate_all; # d'oh
		2862	}
		2863
		2864	{
		2865	# TODO: for gcfclient pleasure, we should give resources
		2866	# that gcfclient doesn't grok a >10000 face index.
		2867	my $res = $facedata->{resource};
		2868	my $enc = JSON::XS->new->utf8->canonical;
		2869
		2870	while (my ($name, $info) = each %$res) {
		2871	my $meta = $enc->encode ({
		2872	name => $name,
		2873	copyright => $info->{copyright}, #TODO#
		2874	});
		2875
		2876	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2877
		2878	if ($info->{type} & 1) {
		2879	# prepend meta info
		2880
		2881	my $data = pack "(w/a*)*", $meta, $info->{data};
		2882	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2883
		2884	cf::face::set_data $idx, 0, $data, $chk;
		2885	} else {
		2886	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2887	}
		2888
		2889	cf::face::set_type $idx, $info->{type};
		2890
		2891	cf::cede_to_tick;
		2892	}
		2893	}
		2894
		2895	1
		2896	}
		2897
		2898	register_exticmd fx_want => sub {
		2899	my ($ns, $want) = @_;
		2900
		2901	while (my ($k, $v) = each %$want) {
		2902	$ns->fx_want ($k, $v);
		2903	}
		2904	};
		2905
		2906	sub reload_regions {
		2907	load_resource_file "$MAPDIR/regions"
		2908	or die "unable to load regions file\n";
		2909
		2910	for (cf::region::list) {
		2911	$_->{match} = qr/$_->{match}/
		2912	if exists $_->{match};
		2913	}
		2914	}
		2915
		2916	sub reload_facedata {
		2917	load_facedata "$DATADIR/facedata"
		2918	or die "unable to load facedata\n";
		2919	}
		2920
		2921	sub reload_archetypes {
		2922	load_resource_file "$DATADIR/archetypes"
		2923	or die "unable to load archetypes\n";
		2924	#d# NEED to laod twice to resolve forward references
		2925	# this really needs to be done in an extra post-pass
		2926	# (which needs to be synchronous, so solve it differently)
		2927	load_resource_file "$DATADIR/archetypes"
		2928	or die "unable to load archetypes\n";
		2929	}
		2930
		2931	sub reload_treasures {
		2932	load_resource_file "$DATADIR/treasures"
		2933	or die "unable to load treasurelists\n";
		2934	}
		2935
		2936	sub reload_resources {
		2937	warn "reloading resource files...\n";
		2938
		2939	reload_regions;
		2940	reload_facedata;
		2941	#reload_archetypes;#d#
		2942	reload_archetypes;
		2943	reload_treasures;
		2944
		2945	warn "finished reloading resource files\n";
		2946	}
		2947
		2948	sub init {
		2949	reload_resources;
		2950	}
1879		2951
1880	sub cfg_load {	2952	sub cfg_load {
1881	open my $fh, "<:utf8", cf::confdir . "/config"	2953	open my $fh, "<:utf8", "$CONFDIR/config"
1882	or return;	2954	or return;
1883		2955
1884	local $/;	2956	local $/;
1885	*CFG = YAML::Syck::Load <$fh>;	2957	*CFG = YAML::Syck::Load <$fh>;
		2958
		2959	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2960
		2961	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2962	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2963
		2964	if (exists $CFG{mlockall}) {
		2965	eval {
		2966	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2967	and die "WARNING: m(un)lockall failed: $!\n";
		2968	};
		2969	warn $@ if $@;
		2970	}
1886	}	2971	}
1887		2972
1888	sub main {	2973	sub main {
1889	# we must not ever block the main coroutine	2974	# we must not ever block the main coroutine
1890	local $Coro::idle = sub {	2975	local $Coro::idle = sub {
1891	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2976	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1892	(Coro::unblock_sub {	2977	(async {
1893	Event::one_event;	2978	Event::one_event;
1894	})->();	2979	})->prio (Coro::PRIO_MAX);
1895	};	2980	};
1896		2981
1897	cfg_load;	2982	cfg_load;
1898	db_load;	2983	db_init;
1899	load_extensions;	2984	load_extensions;
		2985
		2986	$TICK_WATCHER->start;
1900	Event::loop;	2987	Event::loop;
1901	}	2988	}
1902		2989
1903	#############################################################################	2990	#############################################################################
1904	# initialisation	2991	# initialisation and cleanup
1905		2992
		2993	# install some emergency cleanup handlers
		2994	BEGIN {
		2995	for my $signal (qw(INT HUP TERM)) {
		2996	Event->signal (
		2997	reentrant => 0,
		2998	data => WF_AUTOCANCEL,
		2999	signal => $signal,
		3000	prio => 0,
		3001	cb => sub {
		3002	cf::cleanup "SIG$signal";
		3003	},
		3004	);
		3005	}
		3006	}
		3007
		3008	sub write_runtime {
		3009	my $runtime = "$LOCALDIR/runtime";
		3010
		3011	# first touch the runtime file to show we are still running:
		3012	# the fsync below can take a very very long time.
		3013
		3014	IO::AIO::aio_utime $runtime, undef, undef;
		3015
		3016	my $guard = cf::lock_acquire "write_runtime";
		3017
		3018	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3019	or return;
		3020
		3021	my $value = $cf::RUNTIME + 90 + 10;
		3022	# 10 is the runtime save interval, for a monotonic clock
		3023	# 60 allows for the watchdog to kill the server.
		3024
		3025	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3026	and return;
		3027
		3028	# always fsync - this file is important
		3029	aio_fsync $fh
		3030	and return;
		3031
		3032	# touch it again to show we are up-to-date
		3033	aio_utime $fh, undef, undef;
		3034
		3035	close $fh
		3036	or return;
		3037
		3038	aio_rename "$runtime~", $runtime
		3039	and return;
		3040
		3041	warn "runtime file written.\n";
		3042
		3043	1
		3044	}
		3045
		3046	sub emergency_save() {
		3047	my $freeze_guard = cf::freeze_mainloop;
		3048
		3049	warn "enter emergency perl save\n";
		3050
		3051	cf::sync_job {
		3052	# use a peculiar iteration method to avoid tripping on perl
		3053	# refcount bugs in for. also avoids problems with players
		3054	# and maps saved/destroyed asynchronously.
		3055	warn "begin emergency player save\n";
		3056	for my $login (keys %cf::PLAYER) {
		3057	my $pl = $cf::PLAYER{$login} or next;
		3058	$pl->valid or next;
		3059	$pl->save;
		3060	}
		3061	warn "end emergency player save\n";
		3062
		3063	warn "begin emergency map save\n";
		3064	for my $path (keys %cf::MAP) {
		3065	my $map = $cf::MAP{$path} or next;
		3066	$map->valid or next;
		3067	$map->save;
		3068	}
		3069	warn "end emergency map save\n";
		3070
		3071	warn "begin emergency database checkpoint\n";
		3072	BDB::db_env_txn_checkpoint $DB_ENV;
		3073	warn "end emergency database checkpoint\n";
		3074	};
		3075
		3076	warn "leave emergency perl save\n";
		3077	}
		3078
		3079	sub post_cleanup {
		3080	my ($make_core) = @_;
		3081
		3082	warn Carp::longmess "post_cleanup backtrace"
		3083	if $make_core;
		3084	}
		3085
1906	sub reload() {	3086	sub do_reload_perl() {
1907	# can/must only be called in main	3087	# can/must only be called in main
1908	if ($Coro::current != $Coro::main) {	3088	if ($Coro::current != $Coro::main) {
1909	warn "can only reload from main coroutine\n";	3089	warn "can only reload from main coroutine";
1910	return;	3090	return;
1911	}	3091	}
1912		3092
1913	warn "reloading...";	3093	warn "reloading...";
1914		3094
1915	local $FREEZE = 1;	3095	warn "entering sync_job";
		3096
		3097	cf::sync_job {
		3098	cf::write_runtime; # external watchdog should not bark
1916	cf::emergency_save;	3099	cf::emergency_save;
		3100	cf::write_runtime; # external watchdog should not bark
1917		3101
1918	eval {	3102	warn "syncing database to disk";
		3103	BDB::db_env_txn_checkpoint $DB_ENV;
		3104
1919	# if anything goes wrong in here, we should simply crash as we already saved	3105	# if anything goes wrong in here, we should simply crash as we already saved
1920		3106
1921	# cancel all watchers	3107	warn "cancelling all WF_AUTOCANCEL watchers";
1922	for (Event::all_watchers) {	3108	for (Event::all_watchers) {
1923	$_->cancel if $_->data & WF_AUTOCANCEL;	3109	$_->cancel if $_->data & WF_AUTOCANCEL;
1924	}	3110	}
1925		3111
		3112	warn "flushing outstanding aio requests";
		3113	for (;;) {
		3114	BDB::flush;
		3115	IO::AIO::flush;
		3116	Coro::cede;
		3117	last unless IO::AIO::nreqs || BDB::nreqs;
		3118	warn "iterate...";
		3119	}
		3120
		3121	++$RELOAD;
		3122
1926	# cancel all extension coros	3123	warn "cancelling all extension coros";
1927	$_->cancel for values %EXT_CORO;	3124	$_->cancel for values %EXT_CORO;
1928	%EXT_CORO = ();	3125	%EXT_CORO = ();
1929		3126
1930	# unload all extensions	3127	warn "removing commands";
1931	for (@exts) {	3128	%COMMAND = ();
		3129
		3130	warn "removing ext/exti commands";
		3131	%EXTCMD = ();
		3132	%EXTICMD = ();
		3133
		3134	warn "unloading/nuking all extensions";
		3135	for my $pkg (@EXTS) {
1932	warn "unloading <$_>";	3136	warn "... unloading $pkg";
1933	unload_extension $_;	3137
		3138	if (my $cb = $pkg->can ("unload")) {
		3139	eval {
		3140	$cb->($pkg);
		3141	1
		3142	} or warn "$pkg unloaded, but with errors: $@";
1934	}	3143	}
1935		3144
		3145	warn "... nuking $pkg";
		3146	Symbol::delete_package $pkg;
		3147	}
		3148
1936	# unload all modules loaded from $LIBDIR	3149	warn "unloading all perl modules loaded from $LIBDIR";
1937	while (my ($k, $v) = each %INC) {	3150	while (my ($k, $v) = each %INC) {
1938	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3151	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1939		3152
1940	warn "removing <$k>";	3153	warn "... unloading $k";
1941	delete $INC{$k};	3154	delete $INC{$k};
1942		3155
1943	$k =~ s/\.pm$//;	3156	$k =~ s/\.pm$//;
1944	$k =~ s/\//::/g;	3157	$k =~ s/\//::/g;
1945		3158
…		…
1948	}	3161	}
1949		3162
1950	Symbol::delete_package $k;	3163	Symbol::delete_package $k;
1951	}	3164	}
1952		3165
1953	# sync database to disk
1954	cf::db_sync;
1955	IO::AIO::flush;
1956
1957	# get rid of safe::, as good as possible	3166	warn "getting rid of safe::, as good as possible";
1958	Symbol::delete_package "safe::$_"	3167	Symbol::delete_package "safe::$_"
1959	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3168	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1960		3169
1961	# remove register_script_function callbacks
1962	# TODO
1963
1964	# unload cf.pm "a bit"	3170	warn "unloading cf.pm \"a bit\"";
1965	delete $INC{"cf.pm"};	3171	delete $INC{"cf.pm"};
		3172	delete $INC{"cf/pod.pm"};
1966		3173
1967	# don't, removes xs symbols, too,	3174	# don't, removes xs symbols, too,
1968	# and global variables created in xs	3175	# and global variables created in xs
1969	#Symbol::delete_package __PACKAGE__;	3176	#Symbol::delete_package __PACKAGE__;
1970		3177
1971	# reload cf.pm	3178	warn "unload completed, starting to reload now";
		3179
1972	warn "reloading cf.pm";	3180	warn "reloading cf.pm";
1973	require cf;	3181	require cf;
1974	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3182	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1975		3183
1976	# load config and database again	3184	warn "loading config and database again";
1977	cf::cfg_load;	3185	cf::cfg_load;
1978	cf::db_load;
1979		3186
1980	# load extensions
1981	warn "load extensions";	3187	warn "loading extensions";
1982	cf::load_extensions;	3188	cf::load_extensions;
1983		3189
1984	# reattach attachments to objects	3190	warn "reattaching attachments to objects/players";
1985	warn "reattach";	3191	_global_reattach; # objects, sockets
1986	_global_reattach;	3192	warn "reattaching attachments to maps";
1987	};	3193	reattach $_ for values %MAP;
		3194	warn "reattaching attachments to players";
		3195	reattach $_ for values %PLAYER;
1988		3196
1989	if ($@) {	3197	warn "leaving sync_job";
		3198
		3199	1
		3200	} or do {
1990	warn $@;	3201	warn $@;
1991	warn "error while reloading, exiting.";	3202	warn "error while reloading, exiting.";
1992	exit 1;	3203	exit 1;
1993	}	3204	};
1994		3205
1995	warn "reloaded successfully";	3206	warn "reloaded";
1996	};	3207	};
1997		3208
1998	#############################################################################	3209	our $RELOAD_WATCHER; # used only during reload
1999		3210
2000	unless ($LINK_MAP) {	3211	sub reload_perl() {
2001	$LINK_MAP = cf::map::new;	3212	# doing reload synchronously and two reloads happen back-to-back,
		3213	# coro crashes during coro_state_free->destroy here.
2002		3214
2003	$LINK_MAP->width (41);	3215	$RELOAD_WATCHER ||= Event->timer (
2004	$LINK_MAP->height (41);	3216	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,	3217	after => 0,
		3218	data => WF_AUTOCANCEL,
2013	cb => sub {	3219	cb => sub {
2014	$_[0]->w->cancel;	3220	do_reload_perl;
2015		3221	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	});	3222	},
2034		3223	);
2035	$LINK_MAP->{deny_save} = 1;
2036	$LINK_MAP->{deny_reset} = 1;
2037
2038	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2039	}	3224	}
2040
2041	register "<global>", __PACKAGE__;
2042		3225
2043	register_command "reload" => sub {	3226	register_command "reload" => sub {
2044	my ($who, $arg) = @_;	3227	my ($who, $arg) = @_;
2045		3228
2046	if ($who->flag (FLAG_WIZ)) {	3229	if ($who->flag (FLAG_WIZ)) {
2047	$who->message ("start of reload.");
2048	reload;
2049	$who->message ("end of reload.");	3230	$who->message ("reloading server.");
		3231	async { reload_perl };
2050	}	3232	}
2051	};	3233	};
2052		3234
2053	unshift @INC, $LIBDIR;	3235	unshift @INC, $LIBDIR;
2054		3236
		3237	my $bug_warning = 0;
		3238
		3239	our @WAIT_FOR_TICK;
		3240	our @WAIT_FOR_TICK_BEGIN;
		3241
		3242	sub wait_for_tick {
		3243	return unless $TICK_WATCHER->is_active;
		3244	return if $Coro::current == $Coro::main;
		3245
		3246	my $signal = new Coro::Signal;
		3247	push @WAIT_FOR_TICK, $signal;
		3248	$signal->wait;
		3249	}
		3250
		3251	sub wait_for_tick_begin {
		3252	return unless $TICK_WATCHER->is_active;
		3253	return if $Coro::current == $Coro::main;
		3254
		3255	my $signal = new Coro::Signal;
		3256	push @WAIT_FOR_TICK_BEGIN, $signal;
		3257	$signal->wait;
		3258	}
		3259
		3260	my $min = 1e6;#d#
		3261	my $avg = 10;
2055	$TICK_WATCHER = Event->timer (	3262	$TICK_WATCHER = Event->timer (
2056	reentrant => 0,	3263	reentrant => 0,
		3264	parked => 1,
2057	prio => 0,	3265	prio => 0,
2058	at => $NEXT_TICK || $TICK,	3266	at => $NEXT_TICK || $TICK,
2059	data => WF_AUTOCANCEL,	3267	data => WF_AUTOCANCEL,
2060	cb => sub {	3268	cb => sub {
2061	unless ($FREEZE) {	3269	if ($Coro::current != $Coro::main) {
		3270	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3271	unless ++$bug_warning > 10;
		3272	return;
		3273	}
		3274
		3275	$NOW = $tick_start = Event::time;
		3276
2062	cf::server_tick; # one server iteration	3277	cf::server_tick; # one server iteration
2063	$RUNTIME += $TICK;	3278
		3279	0 && sync_job {#d#
		3280	for(1..10) {
		3281	my $t = Event::time;
		3282	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3283	or die;
		3284
		3285	$map->width (50);
		3286	$map->height (50);
		3287	$map->alloc;
		3288	$map->_load_objects ("/tmp/x.map", 1);
		3289	my $t = Event::time - $t;
		3290
		3291	#next unless $t < 0.0013;#d#
		3292	if ($t < $min) {
		3293	$min = $t;
		3294	}
		3295	$avg = $avg * 0.99 + $t * 0.01;
		3296	}
		3297	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3298	exit 0;
		3299	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2064	}	3300	};
2065		3301
		3302	$RUNTIME += $TICK;
2066	$NEXT_TICK += $TICK;	3303	$NEXT_TICK += $TICK;
2067		3304
		3305	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3306	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3307	Coro::async_pool {
		3308	write_runtime
		3309	or warn "ERROR: unable to write runtime file: $!";
		3310	};
		3311	}
		3312
		3313	# my $AFTER = Event::time;
		3314	# warn $AFTER - $NOW;#d#
		3315
		3316	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3317	$sig->send;
		3318	}
		3319	while (my $sig = shift @WAIT_FOR_TICK) {
		3320	$sig->send;
		3321	}
		3322
		3323	$NOW = Event::time;
		3324
2068	# if we are delayed by four ticks or more, skip them all	3325	# if we are delayed by four ticks or more, skip them all
2069	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3326	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2070		3327
2071	$TICK_WATCHER->at ($NEXT_TICK);	3328	$TICK_WATCHER->at ($NEXT_TICK);
2072	$TICK_WATCHER->start;	3329	$TICK_WATCHER->start;
		3330
		3331	$LOAD = ($NOW - $tick_start) / $TICK;
		3332	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3333
		3334	_post_tick;
		3335
		3336
2073	},	3337	},
2074	);	3338	);
2075		3339
		3340	{
2076	IO::AIO::max_poll_time $TICK * 0.2;	3341	BDB::max_poll_time $TICK * 0.1;
2077		3342	$BDB_POLL_WATCHER = Event->io (
2078	Event->io (	3343	reentrant => 0,
2079	fd => IO::AIO::poll_fileno,	3344	fd => BDB::poll_fileno,
2080	poll => 'r',	3345	poll => 'r',
2081	prio => 5,	3346	prio => 0,
2082	data => WF_AUTOCANCEL,
2083	cb => \&IO::AIO::poll_cb,
2084	);
2085
2086	Event->timer (
2087	data => WF_AUTOCANCEL,	3347	data => WF_AUTOCANCEL,
2088	after => 0,	3348	cb => \&BDB::poll_cb,
2089	interval => 10,	3349	);
2090	cb => sub {	3350	BDB::min_parallel 8;
2091	(Coro::unblock_sub {	3351
2092	write_runtime	3352	BDB::set_sync_prepare {
2093	or warn "ERROR: unable to write runtime file: $!";	3353	my $status;
		3354	my $current = $Coro::current;
		3355	(
		3356	sub {
		3357	$status = $!;
		3358	$current->ready; undef $current;
		3359	},
		3360	sub {
		3361	Coro::schedule while defined $current;
		3362	$! = $status;
		3363	},
		3364	)
		3365	};
		3366
		3367	unless ($DB_ENV) {
		3368	$DB_ENV = BDB::db_env_create;
		3369
		3370	cf::sync_job {
		3371	eval {
		3372	BDB::db_env_open
		3373	$DB_ENV,
		3374	$BDBDIR,
		3375	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3376	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3377	0666;
		3378
		3379	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3380
		3381	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3382	$DB_ENV->set_lk_detect;
		3383	};
		3384
		3385	cf::cleanup "db_env_open(db): $@" if $@;
2094	})->();	3386	};
2095	},	3387	}
2096	);	3388	}
		3389
		3390	{
		3391	IO::AIO::min_parallel 8;
		3392
		3393	undef $Coro::AIO::WATCHER;
		3394	IO::AIO::max_poll_time $TICK * 0.1;
		3395	$AIO_POLL_WATCHER = Event->io (
		3396	reentrant => 0,
		3397	data => WF_AUTOCANCEL,
		3398	fd => IO::AIO::poll_fileno,
		3399	poll => 'r',
		3400	prio => 6,
		3401	cb => \&IO::AIO::poll_cb,
		3402	);
		3403	}
		3404
		3405	my $_log_backtrace;
		3406
		3407	sub _log_backtrace {
		3408	my ($msg, @addr) = @_;
		3409
		3410	$msg =~ s/\n//;
		3411
		3412	# limit the # of concurrent backtraces
		3413	if ($_log_backtrace < 2) {
		3414	++$_log_backtrace;
		3415	async {
		3416	my @bt = fork_call {
		3417	@addr = map { sprintf "%x", $_ } @addr;
		3418	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3419	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3420	or die "addr2line: $!";
		3421
		3422	my @funcs;
		3423	my @res = <$fh>;
		3424	chomp for @res;
		3425	while (@res) {
		3426	my ($func, $line) = splice @res, 0, 2, ();
		3427	push @funcs, "[$func] $line";
		3428	}
		3429
		3430	@funcs
		3431	};
		3432
		3433	LOG llevInfo, "[ABT] $msg\n";
		3434	LOG llevInfo, "[ABT] $_\n" for @bt;
		3435	--$_log_backtrace;
		3436	};
		3437	} else {
		3438	LOG llevInfo, "[ABT] $msg\n";
		3439	LOG llevInfo, "[ABT] [suppressed]\n";
		3440	}
		3441	}
		3442
		3443	# load additional modules
		3444	use cf::pod;
		3445
		3446	END { cf::emergency_save }
2097		3447
2098	1	3448	1
2099		3449

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