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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.138 by root, Fri Jan 5 17:07:17 2007 UTC vs.
Revision 1.331 by root, Mon Aug 13 13:10:01 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 $RANDOM_MAPS = cf::localdir . "/random";	94
55	our %EXT_CORO;	95	# used to convert map paths into valid unix filenames by replacing / by ∕
		96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
56		101
57	binmode STDOUT;	102	binmode STDOUT;
58	binmode STDERR;	103	binmode STDERR;
59		104
60	# read virtual server time, if available	105	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
65	}	110	}
66		111
67	mkdir cf::localdir;	112	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		114
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
76		118
77	#############################################################################	119	#############################################################################
78		120
79	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
80		122
…		…
87	=item $cf::RUNTIME	129	=item $cf::RUNTIME
88		130
89	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
90	every server tick.	132	every server tick.
91		133
92	=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
93		137
94	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
95	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.
96		142
97	=item $cf::NOW	143	=item $cf::NOW
98		144
99	The time of the last (current) server tick.	145	The time of the last (current) server tick.
100		146
101	=item $cf::TICK	147	=item $cf::TICK
102		148
103	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.
104		160
105	=item %cf::CFG	161	=item %cf::CFG
106		162
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	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.
109		177
110	=back	178	=back
111		179
112	=cut	180	=cut
113		181
114	BEGIN {	182	BEGIN {
115	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	184	my $msg = join "", @_;
117	utf8::encode $msg;
118		185
119	$msg .= "\n"	186	$msg .= "\n"
120	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
121		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
123	};	193	};
124	}	194	}
125		195
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@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';
131	@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)
132		203
133	# 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
134	# within the Safe compartment.	205	# within the Safe compartment.
135	for my $pkg (qw(	206	for my $pkg (qw(
136	cf::global cf::attachable	207	cf::global cf::attachable
…		…
145		216
146	$Event::DIED = sub {	217	$Event::DIED = sub {
147	warn "error in event callback: @_";	218	warn "error in event callback: @_";
148	};	219	};
149		220
150	my %ext_pkg;	221	#############################################################################
151	my @exts;
152	my @hook;
153		222
154	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
155		224
156	=over 4	225	=over 4
157		226
158	=cut	227	=item dumpval $ref
159		228
160	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	}
161		249
162	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
163		251
164	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
165		253
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
174		255
175	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
176		257
177	=cut	258	=cut
178		259
179	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
181	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
183		264
184	=item cf::lock_wait $string	265	=item cf::lock_wait $string
185		266
186	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
187		268
…		…
193	returned.	274	returned.
194		275
195	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
197		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
198	=cut	283	=cut
199		284
200	our %LOCK;	285	our %LOCK;
201		286
202	sub lock_wait($) {	287	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
223	}	308	}
224	}	309	}
225		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
226	sub freeze_mainloop {	317	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
228		319
229	my $guard = Coro::guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
230	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
231	$guard	324	$guard
232	}	325	}
233		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 }
		392
234	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
235		394
236	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)
237	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
238	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.
239		399
240	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
241	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
242	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
243	fast or be very important.	403	fast or be very important.
…		…
246		406
247	sub sync_job(&) {	407	sub sync_job(&) {
248	my ($job) = @_;	408	my ($job) = @_;
249		409
250	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
251	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
252	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
253		415
254	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
255	# (but this is cancel-safe)	417	# (but this is cancel-safe)
256	my $freeze_guard = freeze_mainloop;	418	my $freeze_guard = freeze_mainloop;
257		419
258	my $busy = 1;	420	my $busy = 1;
259	my @res;	421	my @res;
260		422
261	(Coro::async_pool {	423	(async {
262	@res = eval { $job->() };	424	@res = eval { $job->() };
263	warn $@ if $@;	425	warn $@ if $@;
264	undef $busy;	426	undef $busy;
265	})->prio (Coro::PRIO_MAX);	427	})->prio (Coro::PRIO_MAX);
266		428
267	while ($busy) {	429	while ($busy) {
268	Coro::cede_notself;	430	Coro::cede or Event::one_event;
269	Event::one_event unless Coro::nready;
270	}	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
271		439
272	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
273	} else {	441	} else {
274	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
275		443
276	$job->()	444	$job->()
277	}	445	}
278	}	446	}
279		447
280	=item $coro = cf::coro { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
281		449
282	Creates (and readies) and returns a new coro. This coro is automcatially	450	Like async, but this coro is automatically being canceled when the
283	being canceled when the extension calling this is being unloaded.	451	extension calling this is being unloaded.
284		452
285	=cut	453	=cut
286		454
287	sub coro(&) {	455	sub async_ext(&) {
288	my $cb = shift;	456	my $cb = shift;
289		457
290	my $coro = &Coro::async_pool ($cb);	458	my $coro = &Coro::async ($cb);
291		459
292	$coro->on_destroy (sub {	460	$coro->on_destroy (sub {
293	delete $EXT_CORO{$coro+0};	461	delete $EXT_CORO{$coro+0};
294	});	462	});
295	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
296		464
297	$coro	465	$coro
298	}	466	}
299		467
300	sub write_runtime {	468	=item fork_call { }, $args
301	my $runtime = cf::localdir . "/runtime";
302		469
303	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
304	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.
305		474
306	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
307	(aio_write $fh, 0, (length $value), $value, 0) <= 0
308	and return;
309		476
310	aio_fsync $fh	477	sub _store_scalar {
311	and return;	478	open my $fh, ">", \my $buf
312		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
313	close $fh	481	close $fh;
314	or return;
315		482
316	aio_rename "$runtime~", $runtime	483	$buf
317	and return;	484	}
318		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;
319	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 => $type });
320	}	655	}
321		656
322	=back	657	=back
323		658
324	=cut	659	=cut
325
326	#############################################################################
327
328	package cf::path;
329
330	sub new {
331	my ($class, $path, $base) = @_;
332
333	$path = $path->as_string if ref $path;
334
335	my $self = bless { }, $class;
336
337	# {... are special paths that are not touched
338	# ?xxx/... are special absolute paths
339	# ?random/... random maps
340	# /! non-realised random map exit
341	# /... normal maps
342	# ~/... per-player maps without a specific player (DO NOT USE)
343	# ~user/... per-player map of a specific user
344
345	if ($path =~ /^{/) {
346	# fine as it is
347	} elsif ($path =~ s{^\?random/}{}) {
348	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
349	$self->{random} = cf::from_json $data;
350	} else {
351	if ($path =~ s{^~([^/]+)?}{}) {
352	$self->{user_rel} = 1;
353
354	if (defined $1) {
355	$self->{user} = $1;
356	} elsif ($base =~ m{^~([^/]+)/}) {
357	$self->{user} = $1;
358	} else {
359	warn "cannot resolve user-relative path without user <$path,$base>\n";
360	}
361	} elsif ($path =~ /^\//) {
362	# already absolute
363	} else {
364	$base =~ s{[^/]+/?$}{};
365	return $class->new ("$base/$path");
366	}
367
368	for ($path) {
369	redo if s{/\.?/}{/};
370	redo if s{/[^/]+/\.\./}{/};
371	}
372	}
373
374	$self->{path} = $path;
375
376	$self
377	}
378
379	# the name / primary key / in-game path
380	sub as_string {
381	my ($self) = @_;
382
383	$self->{user_rel} ? "~$self->{user}$self->{path}"
384	: $self->{random} ? "?random/$self->{path}"
385	: $self->{path}
386	}
387
388	# the displayed name, this is a one way mapping
389	sub visible_name {
390	my ($self) = @_;
391
392	# if (my $rmp = $self->{random}) {
393	# # todo: be more intelligent about this
394	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
395	# } else {
396	$self->as_string
397	# }
398	}
399
400	# escape the /'s in the path
401	sub _escaped_path {
402	# ∕ is U+2215
403	(my $path = $_[0]{path}) =~ s/\//∕/g;
404	$path
405	}
406
407	# the original (read-only) location
408	sub load_path {
409	my ($self) = @_;
410
411	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
412	}
413
414	# the temporary/swap location
415	sub save_path {
416	my ($self) = @_;
417
418	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
419	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
420	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
421	}
422
423	# the unique path, might be eq to save_path
424	sub uniq_path {
425	my ($self) = @_;
426
427	$self->{user_rel} || $self->{random}
428	? undef
429	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
430	}
431
432	# return random map parameters, or undef
433	sub random_map_params {
434	my ($self) = @_;
435
436	$self->{random}
437	}
438
439	# this is somewhat ugly, but style maps do need special treatment
440	sub is_style_map {
441	$_[0]{path} =~ m{^/styles/}
442	}
443
444	package cf;
445		660
446	#############################################################################	661	#############################################################################
447		662
448	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
449		664
…		…
451	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")
452	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
453		668
454	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>
455	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
456	crossfire+).	671	Crossfire TRT).
457		672
458	=over 4	673	=over 4
459		674
460	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
461		676
…		…
575	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
576	our @CB_MAP = ();	791	our @CB_MAP = ();
577		792
578	my %attachment;	793	my %attachment;
579		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
580	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
581	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
582		803
583	use sort 'stable';	804	use sort 'stable';
584		805
…		…
618	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
619		840
620	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
621	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
622	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
623	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
624		845
625	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
626	my $pkg = shift @arg;	847	my $pkg = shift @arg;
627		848
628	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
657	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
658	}	879	}
659		880
660	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
661	} else {	882	} else {
662	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
663	}	884	}
664		885
665	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
666	}	887	}
667		888
…		…
669	if (ref $_[0]) {	890	if (ref $_[0]) {
670	_object_attach @_;	891	_object_attach @_;
671	} else {	892	} else {
672	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
673	}	894	}
		895	_recalc_want;
674	};	896	};
675		897
676	# all those should be optimised	898	# all those should be optimised
677	sub cf::attachable::detach {	899	sub cf::attachable::detach {
678	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
681	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
682	reattach ($obj);	904	reattach ($obj);
683	} else {	905	} else {
684	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
685	}	907	}
		908	_recalc_want;
686	};	909	};
687		910
688	sub cf::attachable::attached {	911	sub cf::attachable::attached {
689	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
690		913
…		…
705	";	928	";
706	die if $@;	929	die if $@;
707	}	930	}
708		931
709	our $override;	932	our $override;
710	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?
711		934
712	sub override {	935	sub override {
713	$override = 1;	936	$override = 1;
714	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
715	}	938	}
716		939
717	sub do_invoke {	940	sub do_invoke {
718	my $event = shift;	941	my $event = shift;
719	my $callbacks = shift;	942	my $callbacks = shift;
720		943
721	@invoke_results = ();	944	@INVOKE_RESULTS = ();
722		945
723	local $override;	946	local $override;
724		947
725	for (@$callbacks) {	948	for (@$callbacks) {
726	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
743		966
744	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
745		968
746	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
747	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
748	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
749		972
750	=back	973	=back
751		974
752	=cut	975	=cut
753		976
754	#############################################################################	977	#############################################################################
755	# 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	}
756		990
757	sub reattach {	991	sub reattach {
758	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
759	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
760		996
761	my $registry = $obj->registry;	997	my $registry = $obj->registry;
762		998
763	@$registry = ();	999	@$registry = ();
764		1000
…		…
811	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
812		1048
813	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
814	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
815	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
816	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
817	close $fh;	1053	close $fh;
818		1054
819	if (@$objs) {	1055	if (@$objs) {
820	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) {
821	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
822	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
823	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
824	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
825	close $fh;	1061	close $fh;
826	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
827	}	1063	}
828	} else {	1064	} else {
829	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
861	or return;	1097	or return;
862	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
863	}	1099	}
864		1100
865	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
866	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
867	return ($data, $av);	1103	return ($data, $av);
868	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
869		1111
870	#############################################################################	1112	#############################################################################
871	# command handling &c	1113	# command handling &c
872		1114
873	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
886	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
887	}	1129	}
888		1130
889	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
890		1132
891	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.
892		1138
893	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
894	called.	1140	called.
895		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
896	=cut	1153	=cut
897		1154
898	sub register_extcmd {	1155	sub register_extcmd {
899	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
900		1157
901	my $caller = caller;
902	#warn "registering extcmd '$name' to '$caller'";
903
904	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
905	}	1165	}
906		1166
907	cf::player->attach (	1167	cf::player->attach (
908	on_command => sub {	1168	on_command => sub {
909	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
918	cf::override;	1178	cf::override;
919	},	1179	},
920	on_extcmd => sub {	1180	on_extcmd => sub {
921	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
922		1182
923	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
924		1184
925	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
926	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
927	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
928	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
929	}	1195	if $reply;
930	}	1196	}
931	} else {	1197	} else {
932	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
933	}	1199	}
934		1200
935	cf::override;	1201	cf::override;
936	},	1202	},
937	);	1203	);
938		1204
939	sub register {
940	my ($base, $pkg) = @_;
941
942	#TODO
943	}
944
945	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 $player->send_msg ($channel, $msg, $color, [extra...])
		1378
		1379	=cut
		1380
		1381	sub send_msg {
		1382	my $ns = shift->ns
		1383	or return;
		1384	$ns->send_msg (@_);
		1385	}
		1386
		1387	=item $pl->quit_character
		1388
		1389	Nukes the player without looking back. If logged in, the connection will
		1390	be destroyed. May block for a long time.
		1391
		1392	=cut
		1393
		1394	sub quit_character {
		1395	my ($pl) = @_;
		1396
		1397	my $name = $pl->ob->name;
		1398
		1399	$pl->{deny_save} = 1;
		1400	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1401
		1402	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1403	$pl->deactivate;
		1404	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1405	$pl->ns->destroy if $pl->ns;
		1406
		1407	my $path = playerdir $pl;
		1408	my $temp = "$path~$cf::RUNTIME~deleting~";
		1409	aio_rename $path, $temp;
		1410	delete $cf::PLAYER{$pl->ob->name};
		1411	$pl->destroy;
		1412
		1413	my $prefix = qr<^~\Q$name\E/>;
		1414
		1415	# nuke player maps
		1416	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1417
		1418	IO::AIO::aio_rmtree $temp;
		1419	}
		1420
		1421	=item $pl->kick
		1422
		1423	Kicks a player out of the game. This destroys the connection.
		1424
		1425	=cut
		1426
		1427	sub kick {
		1428	my ($pl, $kicker) = @_;
		1429
		1430	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1431	$pl->killer ("kicked");
		1432	$pl->ns->destroy;
		1433	}
		1434
		1435	=item cf::player::list_logins
		1436
		1437	Returns am arrayref of all valid playernames in the system, can take a
		1438	while and may block, so not sync_job-capable, ever.
		1439
		1440	=cut
		1441
		1442	sub list_logins {
		1443	my $dirs = aio_readdir $PLAYERDIR
		1444	or return [];
		1445
		1446	my @logins;
		1447
		1448	for my $login (@$dirs) {
		1449	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1450	aio_read $fh, 0, 512, my $buf, 0 or next;
		1451	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1452
		1453	utf8::decode $login;
		1454	push @logins, $login;
		1455	}
		1456
		1457	\@logins
		1458	}
		1459
		1460	=item $player->maps
		1461
		1462	Returns an arrayref of map paths that are private for this
		1463	player. May block.
		1464
		1465	=cut
		1466
		1467	sub maps($) {
		1468	my ($pl) = @_;
		1469
		1470	$pl = ref $pl ? $pl->ob->name : $pl;
		1471
		1472	my $files = aio_readdir playerdir $pl
		1473	or return;
		1474
		1475	my @paths;
		1476
		1477	for (@$files) {
		1478	utf8::decode $_;
		1479	next if /\.(?:pl|pst)$/;
		1480	next unless /^$PATH_SEP/o;
		1481
		1482	push @paths, cf::map::normalise "~$pl/$_";
		1483	}
		1484
		1485	\@paths
		1486	}
		1487
		1488	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1489
		1490	Expand crossfire pod fragments into protocol xml.
		1491
		1492	=cut
		1493
		1494	sub expand_cfpod {
		1495	((my $self), (local $_)) = @_;
		1496
		1497	# escape & and <
		1498	s/&/&amp;/g;
		1499	s/(?<![BIUGH])</&lt;/g;
		1500
		1501	# this is buggy, it needs to properly take care of nested <'s
		1502
		1503	1 while
		1504	# replace B<>, I<>, U<> etc.
		1505	s/B<([^\>]*)>/<b>$1<\/b>/
		1506	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1507	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1508	# replace G<male|female> tags
		1509	|| s{G<([^>|]*)\|([^>]*)>}{
		1510	$self->gender ? $2 : $1
		1511	}ge
		1512	# replace H<hint text>
		1513	|| s{H<([^\>]*)>}
		1514	{
		1515	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1516	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1517	"")
		1518	[$self->{hintmode}]
		1519	}ge;
		1520
		1521	# create single paragraphs (very hackish)
		1522	s/(?<=\S)\n(?=\w)/ /g;
		1523
		1524	# compress some whitespace
		1525	s/\s+\n/\n/g; # ws line-ends
		1526	s/\n\n+/\n/g; # double lines
		1527	s/^\n+//; # beginning lines
		1528	s/\n+$//; # ending lines
		1529
		1530	$_
		1531	}
		1532
		1533	sub hintmode {
		1534	$_[0]{hintmode} = $_[1] if @_ > 1;
		1535	$_[0]{hintmode}
		1536	}
		1537
		1538	=item $player->ext_reply ($msgid, @msg)
		1539
		1540	Sends an ext reply to the player.
		1541
		1542	=cut
		1543
		1544	sub ext_reply($$@) {
		1545	my ($self, $id, @msg) = @_;
		1546
		1547	if ($self->ns->extcmd == 2) {
		1548	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1549	} elsif ($self->ns->extcmd == 1) {
		1550	#TODO: version 1, remove
		1551	unshift @msg, msgtype => "reply", msgid => $id;
		1552	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1553	}
		1554	}
		1555
		1556	=item $player->ext_msg ($type, @msg)
		1557
		1558	Sends an ext event to the client.
		1559
		1560	=cut
		1561
		1562	sub ext_msg($$@) {
		1563	my ($self, $type, @msg) = @_;
		1564
		1565	$self->ns->ext_msg ($type, @msg);
		1566	}
		1567
		1568	=head3 cf::region
		1569
		1570	=over 4
		1571
		1572	=cut
		1573
		1574	package cf::region;
		1575
		1576	=item cf::region::find_by_path $path
		1577
		1578	Tries to decuce the likely region for a map knowing only its path.
		1579
		1580	=cut
		1581
		1582	sub find_by_path($) {
946	my ($path) = @_;	1583	my ($path) = @_;
947		1584
948	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1585	my ($match, $specificity);
949	my $base = $1;
950	my $pkg = $1;
951	$pkg =~ s/[^[:word:]]/_/g;
952	$pkg = "ext::$pkg";
953		1586
954	warn "loading '$path' into '$pkg'\n";	1587	for my $region (list) {
955		1588	if ($region->{match} && $path =~ $region->{match}) {
956	open my $fh, "<:utf8", $path	1589	($match, $specificity) = ($region, $region->specificity)
957	or die "$path: $!";	1590	if $region->specificity > $specificity;
958		1591	}
959	my $source =
960	"package $pkg; use strict; use utf8;\n"
961	. "#line 1 \"$path\"\n{\n"
962	. (do { local $/; <$fh> })
963	. "\n};\n1";
964
965	eval $source
966	or die $@ ? "$path: $@\n"
967	: "extension disabled.\n";
968
969	push @exts, $pkg;
970	$ext_pkg{$base} = $pkg;
971
972	# no strict 'refs';
973	# @{"$pkg\::ISA"} = ext::;
974
975	register $base, $pkg;
976	}
977
978	sub unload_extension {
979	my ($pkg) = @_;
980
981	warn "removing extension $pkg\n";
982
983	# remove hooks
984	#TODO
985	# for my $idx (0 .. $#PLUGIN_EVENT) {
986	# delete $hook[$idx]{$pkg};
987	# }	1592	}
988		1593
989	# remove commands	1594	$match
990	for my $name (keys %COMMAND) {
991	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
992
993	if (@cb) {
994	$COMMAND{$name} = \@cb;
995	} else {
996	delete $COMMAND{$name};
997	}
998	}
999
1000	# remove extcmds
1001	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1002	delete $EXTCMD{$name};
1003	}
1004
1005	if (my $cb = $pkg->can ("unload")) {
1006	eval {
1007	$cb->($pkg);
1008	1
1009	} or warn "$pkg unloaded, but with errors: $@";
1010	}
1011
1012	Symbol::delete_package $pkg;
1013	}
1014
1015	sub load_extensions {
1016	for my $ext (<$LIBDIR/*.ext>) {
1017	next unless -r $ext;
1018	eval {
1019	load_extension $ext;
1020	1
1021	} or warn "$ext not loaded: $@";
1022	}
1023	}
1024
1025	#############################################################################
1026	# load/save/clean perl data associated with a map
1027
1028	*cf::mapsupport::on_clean = sub {
1029	my ($map) = @_;
1030
1031	my $path = $map->tmpname;
1032	defined $path or return;
1033
1034	unlink "$path.pst";
1035	};
1036
1037	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1038
1039	#############################################################################
1040	# load/save perl data associated with player->ob objects
1041
1042	sub all_objects(@) {
1043	@_, map all_objects ($_->inv), @_
1044	}
1045
1046	# TODO: compatibility cruft, remove when no longer needed
1047	cf::player->attach (
1048	on_load => sub {
1049	my ($pl, $path) = @_;
1050
1051	for my $o (all_objects $pl->ob) {
1052	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1053	$o->set_ob_key_value ("_perl_data");
1054
1055	%$o = %{ Storable::thaw pack "H*", $value };
1056	}
1057	}
1058	},
1059	);
1060
1061	#############################################################################
1062
1063	=head2 CORE EXTENSIONS
1064
1065	Functions and methods that extend core crossfire objects.
1066
1067	=head3 cf::player
1068
1069	=over 4
1070
1071	=item cf::player::exists $login
1072
1073	Returns true when the given account exists.
1074
1075	=cut
1076
1077	sub cf::player::exists($) {
1078	cf::player::find $_[0]
1079	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1080	}
1081
1082	=item $player->ext_reply ($msgid, $msgtype, %msg)
1083
1084	Sends an ext reply to the player.
1085
1086	=cut
1087
1088	sub cf::player::ext_reply($$$%) {
1089	my ($self, $id, %msg) = @_;
1090
1091	$msg{msgid} = $id;
1092
1093	$self->send ("ext " . to_json \%msg);
1094	}	1595	}
1095		1596
1096	=back	1597	=back
1097
1098		1598
1099	=head3 cf::map	1599	=head3 cf::map
1100		1600
1101	=over 4	1601	=over 4
1102		1602
…		…
1105	package cf::map;	1605	package cf::map;
1106		1606
1107	use Fcntl;	1607	use Fcntl;
1108	use Coro::AIO;	1608	use Coro::AIO;
1109		1609
		1610	use overload
		1611	'""' => \&as_string,
		1612	fallback => 1;
		1613
1110	our $MAX_RESET = 3600;	1614	our $MAX_RESET = 3600;
1111	our $DEFAULT_RESET = 3000;	1615	our $DEFAULT_RESET = 3000;
1112		1616
1113	sub generate_random_map {	1617	sub generate_random_map {
1114	my ($path, $rmp) = @_;	1618	my ($self, $rmp) = @_;
1115
1116	# mit "rum" bekleckern, nicht	1619	# mit "rum" bekleckern, nicht
1117	cf::map::_create_random_map	1620	$self->_create_random_map (
1118	$path,
1119	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1621	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1120	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1622	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1121	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1623	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1122	$rmp->{exit_on_final_map},	1624	$rmp->{exit_on_final_map},
1123	$rmp->{xsize}, $rmp->{ysize},	1625	$rmp->{xsize}, $rmp->{ysize},
1124	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1626	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1125	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1627	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1126	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1628	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1127	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1629	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1128	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1630	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1129	(cf::region::find $rmp->{region})	1631	(cf::region::find $rmp->{region}), $rmp->{custom}
		1632	)
		1633	}
		1634
		1635	=item cf::map->register ($regex, $prio)
		1636
		1637	Register a handler for the map path matching the given regex at the
		1638	givne priority (higher is better, built-in handlers have priority 0, the
		1639	default).
		1640
		1641	=cut
		1642
		1643	sub register {
		1644	my (undef, $regex, $prio) = @_;
		1645	my $pkg = caller;
		1646
		1647	no strict;
		1648	push @{"$pkg\::ISA"}, __PACKAGE__;
		1649
		1650	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1651	}
		1652
		1653	# also paths starting with '/'
		1654	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1655
		1656	sub thawer_merge {
		1657	my ($self, $merge) = @_;
		1658
		1659	# we have to keep some variables in memory intact
		1660	local $self->{path};
		1661	local $self->{load_path};
		1662
		1663	$self->SUPER::thawer_merge ($merge);
		1664	}
		1665
		1666	sub normalise {
		1667	my ($path, $base) = @_;
		1668
		1669	$path = "$path"; # make sure its a string
		1670
		1671	$path =~ s/\.map$//;
		1672
		1673	# map plan:
		1674	#
		1675	# /! non-realised random map exit (special hack!)
		1676	# {... are special paths that are not being touched
		1677	# ?xxx/... are special absolute paths
		1678	# ?random/... random maps
		1679	# /... normal maps
		1680	# ~user/... per-player map of a specific user
		1681
		1682	$path =~ s/$PATH_SEP/\//go;
		1683
		1684	# treat it as relative path if it starts with
		1685	# something that looks reasonable
		1686	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1687	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1688
		1689	$base =~ s{[^/]+/?$}{};
		1690	$path = "$base/$path";
		1691	}
		1692
		1693	for ($path) {
		1694	redo if s{//}{/};
		1695	redo if s{/\.?/}{/};
		1696	redo if s{/[^/]+/\.\./}{/};
		1697	}
		1698
		1699	$path
		1700	}
		1701
		1702	sub new_from_path {
		1703	my (undef, $path, $base) = @_;
		1704
		1705	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1706
		1707	$path = normalise $path, $base;
		1708
		1709	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1710	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1711	my $self = bless cf::map::new, $pkg;
		1712	$self->{path} = $path; $self->path ($path);
		1713	$self->init; # pass $1 etc.
		1714	return $self;
		1715	}
		1716	}
		1717
		1718	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1719	()
		1720	}
		1721
		1722	sub init {
		1723	my ($self) = @_;
		1724
		1725	$self
		1726	}
		1727
		1728	sub as_string {
		1729	my ($self) = @_;
		1730
		1731	"$self->{path}"
		1732	}
		1733
		1734	# the displayed name, this is a one way mapping
		1735	sub visible_name {
		1736	&as_string
		1737	}
		1738
		1739	# the original (read-only) location
		1740	sub load_path {
		1741	my ($self) = @_;
		1742
		1743	"$MAPDIR/$self->{path}.map"
		1744	}
		1745
		1746	# the temporary/swap location
		1747	sub save_path {
		1748	my ($self) = @_;
		1749
		1750	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1751	"$TMPDIR/$path.map"
		1752	}
		1753
		1754	# the unique path, undef == no special unique path
		1755	sub uniq_path {
		1756	my ($self) = @_;
		1757
		1758	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1759	"$UNIQUEDIR/$path"
1130	}	1760	}
1131		1761
1132	# and all this just because we cannot iterate over	1762	# and all this just because we cannot iterate over
1133	# all maps in C++...	1763	# all maps in C++...
1134	sub change_all_map_light {	1764	sub change_all_map_light {
…		…
1136		1766
1137	$_->change_map_light ($change)	1767	$_->change_map_light ($change)
1138	for grep $_->outdoor, values %cf::MAP;	1768	for grep $_->outdoor, values %cf::MAP;
1139	}	1769	}
1140		1770
		1771	sub decay_objects {
		1772	my ($self) = @_;
		1773
		1774	return if $self->{deny_reset};
		1775
		1776	$self->do_decay_objects;
		1777	}
		1778
		1779	sub unlink_save {
		1780	my ($self) = @_;
		1781
		1782	utf8::encode (my $save = $self->save_path);
		1783	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1784	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1785	}
		1786
1141	sub try_load_header($) {	1787	sub load_header_from($) {
1142	my ($path) = @_;	1788	my ($self, $path) = @_;
1143		1789
1144	utf8::encode $path;	1790	utf8::encode $path;
1145	aio_open $path, O_RDONLY, 0	1791	#aio_open $path, O_RDONLY, 0
		1792	# or return;
		1793
		1794	$self->_load_header ($path)
1146	or return;	1795	or return;
1147		1796
1148	my $map = cf::map::new	1797	$self->{load_path} = $path;
		1798
		1799	1
		1800	}
		1801
		1802	sub load_header_orig {
		1803	my ($self) = @_;
		1804
		1805	$self->load_header_from ($self->load_path)
		1806	}
		1807
		1808	sub load_header_temp {
		1809	my ($self) = @_;
		1810
		1811	$self->load_header_from ($self->save_path)
		1812	}
		1813
		1814	sub prepare_temp {
		1815	my ($self) = @_;
		1816
		1817	$self->last_access ((delete $self->{last_access})
		1818	|| $cf::RUNTIME); #d#
		1819	# safety
		1820	$self->{instantiate_time} = $cf::RUNTIME
		1821	if $self->{instantiate_time} > $cf::RUNTIME;
		1822	}
		1823
		1824	sub prepare_orig {
		1825	my ($self) = @_;
		1826
		1827	$self->{load_original} = 1;
		1828	$self->{instantiate_time} = $cf::RUNTIME;
		1829	$self->last_access ($cf::RUNTIME);
		1830	$self->instantiate;
		1831	}
		1832
		1833	sub load_header {
		1834	my ($self) = @_;
		1835
		1836	if ($self->load_header_temp) {
		1837	$self->prepare_temp;
		1838	} else {
		1839	$self->load_header_orig
1149	or return;	1840	or return;
		1841	$self->prepare_orig;
		1842	}
1150		1843
1151	# for better error messages only, will be overwritten	1844	$self->{deny_reset} = 1
1152	$map->path ($path);	1845	if $self->no_reset;
1153		1846
1154	$map->load_header ($path)	1847	$self->default_region (cf::region::find_by_path $self->{path})
1155	or return;	1848	unless $self->default_region;
1156		1849
1157	$map->{load_path} = $path;	1850	1
1158
1159	$map
1160	}	1851	}
1161		1852
1162	sub find;	1853	sub find;
1163	sub find {	1854	sub find {
1164	my ($path, $origin) = @_;	1855	my ($path, $origin) = @_;
1165		1856
1166	#warn "find<$path,$origin>\n";#d#
1167
1168	$path = new cf::path $path, $origin && $origin->path;	1857	$path = normalise $path, $origin && $origin->path;
1169	my $key = $path->as_string;
1170		1858
1171	cf::lock_wait "map_find:$key";	1859	cf::lock_wait "map_find:$path";
1172		1860
1173	$cf::MAP{$key} || do {	1861	$cf::MAP{$path} || do {
1174	my $guard = cf::lock_acquire "map_find:$key";	1862	my $guard = cf::lock_acquire "map_find:$path";
1175		1863	my $map = new_from_path cf::map $path
1176	# do it the slow way
1177	my $map = try_load_header $path->save_path;
1178
1179	Coro::cede;
1180
1181	if ($map) {
1182	$map->last_access ((delete $map->{last_access})
1183	|| $cf::RUNTIME); #d#
1184	# safety
1185	$map->{instantiate_time} = $cf::RUNTIME
1186	if $map->{instantiate_time} > $cf::RUNTIME;
1187	} else {
1188	if (my $rmp = $path->random_map_params) {
1189	$map = generate_random_map $key, $rmp;
1190	} else {
1191	$map = try_load_header $path->load_path;
1192	}
1193
1194	$map or return;	1864	or return;
1195		1865
1196	$map->{load_original} = 1;
1197	$map->{instantiate_time} = $cf::RUNTIME;
1198	$map->last_access ($cf::RUNTIME);
1199	$map->instantiate;
1200
1201	# per-player maps become, after loading, normal maps
1202	$map->per_player (0) if $path->{user_rel};
1203	}
1204
1205	$map->path ($key);
1206	$map->{path} = $path;
1207	$map->{last_save} = $cf::RUNTIME;	1866	$map->{last_save} = $cf::RUNTIME;
1208		1867
1209	Coro::cede;	1868	$map->load_header
		1869	or return;
1210		1870
1211	if ($map->should_reset) {	1871	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1872	# doing this can freeze the server in a sync job, obviously
		1873	#$cf::WAIT_FOR_TICK->wait;
1212	$map->reset;	1874	$map->reset;
1213	undef $guard;	1875	undef $guard;
1214	$map = find $path	1876	return find $path;
1215	or return;
1216	}	1877	}
1217		1878
1218	$cf::MAP{$key} = $map	1879	$cf::MAP{$path} = $map
1219	}	1880	}
1220	}	1881	}
		1882
		1883	sub pre_load { }
		1884	sub post_load { }
1221		1885
1222	sub load {	1886	sub load {
1223	my ($self) = @_;	1887	my ($self) = @_;
1224		1888
		1889	local $self->{deny_reset} = 1; # loading can take a long time
		1890
1225	my $path = $self->{path};	1891	my $path = $self->{path};
		1892
		1893	{
1226	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1894	my $guard = cf::lock_acquire "map_load:$path";
1227		1895
1228	return if $self->in_memory != cf::MAP_SWAPPED;	1896	return if $self->in_memory != cf::MAP_SWAPPED;
1229		1897
1230	$self->in_memory (cf::MAP_LOADING);	1898	$self->in_memory (cf::MAP_LOADING);
1231		1899
1232	$self->alloc;	1900	$self->alloc;
		1901
		1902	$self->pre_load;
		1903	Coro::cede;
		1904
1233	$self->load_objects ($self->{load_path}, 1)	1905	$self->_load_objects ($self->{load_path}, 1)
1234	or return;	1906	or return;
1235		1907
1236	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1908	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1237	if delete $self->{load_original};	1909	if delete $self->{load_original};
1238		1910
1239	if (my $uniq = $path->uniq_path) {	1911	if (my $uniq = $self->uniq_path) {
1240	utf8::encode $uniq;	1912	utf8::encode $uniq;
1241	if (aio_open $uniq, O_RDONLY, 0) {	1913	if (aio_open $uniq, O_RDONLY, 0) {
1242	$self->clear_unique_items;	1914	$self->clear_unique_items;
1243	$self->load_objects ($uniq, 0);	1915	$self->_load_objects ($uniq, 0);
1244	}	1916	}
1245	}	1917	}
1246		1918
1247	Coro::cede;	1919	Coro::cede;
1248
1249	# now do the right thing for maps	1920	# now do the right thing for maps
1250	$self->link_multipart_objects;	1921	$self->link_multipart_objects;
1251
1252	if ($self->{path}->is_style_map) {
1253	$self->{deny_save} = 1;
1254	$self->{deny_reset} = 1;
1255	} else {
1256	$self->fix_auto_apply;
1257	$self->decay_objects;
1258	$self->update_buttons;
1259	$self->set_darkness_map;
1260	$self->difficulty ($self->estimate_difficulty)	1922	$self->difficulty ($self->estimate_difficulty)
1261	unless $self->difficulty;	1923	unless $self->difficulty;
		1924	Coro::cede;
		1925
		1926	unless ($self->{deny_activate}) {
		1927	$self->decay_objects;
		1928	$self->fix_auto_apply;
		1929	$self->update_buttons;
		1930	Coro::cede;
		1931	$self->set_darkness_map;
		1932	Coro::cede;
1262	$self->activate;	1933	$self->activate;
1263	}	1934	}
1264		1935
1265	Coro::cede;	1936	$self->{last_save} = $cf::RUNTIME;
		1937	$self->last_access ($cf::RUNTIME);
1266		1938
1267	$self->in_memory (cf::MAP_IN_MEMORY);	1939	$self->in_memory (cf::MAP_IN_MEMORY);
		1940	}
		1941
		1942	$self->post_load;
		1943	}
		1944
		1945	sub customise_for {
		1946	my ($self, $ob) = @_;
		1947
		1948	return find "~" . $ob->name . "/" . $self->{path}
		1949	if $self->per_player;
		1950
		1951	# return find "?party/" . $ob->name . "/" . $self->{path}
		1952	# if $self->per_party;
		1953
		1954	$self
		1955	}
		1956
		1957	# find and load all maps in the 3x3 area around a map
		1958	sub load_diag {
		1959	my ($map) = @_;
		1960
		1961	my @diag; # diagonal neighbours
		1962
		1963	for (0 .. 3) {
		1964	my $neigh = $map->tile_path ($_)
		1965	or next;
		1966	$neigh = find $neigh, $map
		1967	or next;
		1968	$neigh->load;
		1969
		1970	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1971	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1972	}
		1973
		1974	for (@diag) {
		1975	my $neigh = find @$_
		1976	or next;
		1977	$neigh->load;
		1978	}
1268	}	1979	}
1269		1980
1270	sub find_sync {	1981	sub find_sync {
1271	my ($path, $origin) = @_;	1982	my ($path, $origin) = @_;
1272		1983
1273	cf::sync_job { cf::map::find $path, $origin }	1984	cf::sync_job { find $path, $origin }
1274	}	1985	}
1275		1986
1276	sub do_load_sync {	1987	sub do_load_sync {
1277	my ($map) = @_;	1988	my ($map) = @_;
1278		1989
1279	cf::sync_job { $map->load };	1990	cf::sync_job { $map->load };
1280	}	1991	}
1281		1992
		1993	our %MAP_PREFETCH;
		1994	our $MAP_PREFETCHER = undef;
		1995
		1996	sub find_async {
		1997	my ($path, $origin) = @_;
		1998
		1999	$path = normalise $path, $origin && $origin->{path};
		2000
		2001	if (my $map = $cf::MAP{$path}) {
		2002	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		2003	}
		2004
		2005	undef $MAP_PREFETCH{$path};
		2006	$MAP_PREFETCHER ||= cf::async {
		2007	while (%MAP_PREFETCH) {
		2008	for my $path (keys %MAP_PREFETCH) {
		2009	if (my $map = find $path) {
		2010	$map->load;
		2011	}
		2012
		2013	delete $MAP_PREFETCH{$path};
		2014	}
		2015	}
		2016	undef $MAP_PREFETCHER;
		2017	};
		2018	$MAP_PREFETCHER->prio (6);
		2019
		2020	()
		2021	}
		2022
1282	sub save {	2023	sub save {
1283	my ($self) = @_;	2024	my ($self) = @_;
1284		2025
1285	my $lock = cf::lock_acquire "map_data:" . $self->path;	2026	my $lock = cf::lock_acquire "map_data:" . $self->path;
1286		2027
1287	$self->{last_save} = $cf::RUNTIME;	2028	$self->{last_save} = $cf::RUNTIME;
1288		2029
1289	return unless $self->dirty;	2030	return unless $self->dirty;
1290		2031
1291	my $save = $self->{path}->save_path; utf8::encode $save;	2032	my $save = $self->save_path; utf8::encode $save;
1292	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2033	my $uniq = $self->uniq_path; utf8::encode $uniq;
1293		2034
1294	$self->{load_path} = $save;	2035	$self->{load_path} = $save;
1295		2036
1296	return if $self->{deny_save};	2037	return if $self->{deny_save};
1297		2038
1298	local $self->{last_access} = $self->last_access;#d#	2039	local $self->{last_access} = $self->last_access;#d#
1299		2040
		2041	cf::async {
		2042	$_->contr->save for $self->players;
		2043	};
		2044
1300	if ($uniq) {	2045	if ($uniq) {
1301	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2046	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1302	$self->save_objects ($uniq, cf::IO_UNIQUES);	2047	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1303	} else {	2048	} else {
1304	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2049	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1305	}	2050	}
1306	}	2051	}
1307		2052
1308	sub swap_out {	2053	sub swap_out {
1309	my ($self) = @_;	2054	my ($self) = @_;
…		…
1323		2068
1324	sub reset_at {	2069	sub reset_at {
1325	my ($self) = @_;	2070	my ($self) = @_;
1326		2071
1327	# TODO: safety, remove and allow resettable per-player maps	2072	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2073	return 1e99 if $self->{deny_reset};
1330		2074
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2075	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2076	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2077
…		…
1338	my ($self) = @_;	2082	my ($self) = @_;
1339		2083
1340	$self->reset_at <= $cf::RUNTIME	2084	$self->reset_at <= $cf::RUNTIME
1341	}	2085	}
1342		2086
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2087	sub reset {
1365	my ($self) = @_;	2088	my ($self) = @_;
1366		2089
1367	my $lock = cf::lock_acquire "map_data:" . $self->path;	2090	my $lock = cf::lock_acquire "map_data:$self->{path}";
1368		2091
1369	return if $self->players;	2092	return if $self->players;
1370	return if $self->{path}{user_rel};#d#
1371		2093
1372	warn "resetting map ", $self->path;#d#	2094	warn "resetting map ", $self->path;
		2095
		2096	$self->in_memory (cf::MAP_SWAPPED);
		2097
		2098	# need to save uniques path
		2099	unless ($self->{deny_save}) {
		2100	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2101
		2102	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2103	if $uniq;
		2104	}
1373		2105
1374	delete $cf::MAP{$self->path};	2106	delete $cf::MAP{$self->path};
		2107
		2108	$self->clear;
1375		2109
1376	$_->clear_links_to ($self) for values %cf::MAP;	2110	$_->clear_links_to ($self) for values %cf::MAP;
1377		2111
1378	$self->unlink_save;	2112	$self->unlink_save;
1379	$self->destroy;	2113	$self->destroy;
…		…
1382	my $nuke_counter = "aaaa";	2116	my $nuke_counter = "aaaa";
1383		2117
1384	sub nuke {	2118	sub nuke {
1385	my ($self) = @_;	2119	my ($self) = @_;
1386		2120
		2121	delete $cf::MAP{$self->path};
		2122
		2123	$self->unlink_save;
		2124
		2125	bless $self, "cf::map";
		2126	delete $self->{deny_reset};
1387	$self->{deny_save} = 1;	2127	$self->{deny_save} = 1;
1388	$self->reset_timeout (1);	2128	$self->reset_timeout (1);
1389	$self->rename ("{nuke}/" . ($nuke_counter++));	2129	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2130
		2131	$cf::MAP{$self->path} = $self;
		2132
1390	$self->reset; # polite request, might not happen	2133	$self->reset; # polite request, might not happen
1391	}	2134	}
1392		2135
1393	sub customise_for {	2136	=item $maps = cf::map::tmp_maps
1394	my ($map, $ob) = @_;
1395		2137
1396	if ($map->per_player) {	2138	Returns an arrayref with all map paths of currently instantiated and saved
1397	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2139	maps. May block.
		2140
		2141	=cut
		2142
		2143	sub tmp_maps() {
1398	}	2144	[
1399		2145	map {
1400	$map	2146	utf8::decode $_;
		2147	/\.map$/
		2148	? normalise $_
		2149	: ()
		2150	} @{ aio_readdir $TMPDIR or [] }
		2151	]
1401	}	2152	}
1402		2153
1403	sub emergency_save {	2154	=item $maps = cf::map::random_maps
1404	my $freeze_guard = cf::freeze_mainloop;
1405		2155
1406	warn "enter emergency map save\n";	2156	Returns an arrayref with all map paths of currently instantiated and saved
		2157	random maps. May block.
1407		2158
1408	cf::sync_job {	2159	=cut
1409	warn "begin emergency map save\n";
1410	$_->save for values %cf::MAP;
1411	};
1412		2160
1413	warn "end emergency map save\n";	2161	sub random_maps() {
		2162	[
		2163	map {
		2164	utf8::decode $_;
		2165	/\.map$/
		2166	? normalise "?random/$_"
		2167	: ()
		2168	} @{ aio_readdir $RANDOMDIR or [] }
		2169	]
		2170	}
		2171
		2172	=item cf::map::unique_maps
		2173
		2174	Returns an arrayref of paths of all shared maps that have
		2175	instantiated unique items. May block.
		2176
		2177	=cut
		2178
		2179	sub unique_maps() {
		2180	[
		2181	map {
		2182	utf8::decode $_;
		2183	/\.map$/
		2184	? normalise $_
		2185	: ()
		2186	} @{ aio_readdir $UNIQUEDIR or [] }
		2187	]
1414	}	2188	}
1415		2189
1416	package cf;	2190	package cf;
1417		2191
1418	=back	2192	=back
1419		2193
		2194	=head3 cf::object
		2195
		2196	=cut
		2197
		2198	package cf::object;
		2199
		2200	=over 4
		2201
		2202	=item $ob->inv_recursive
		2203
		2204	Returns the inventory of the object _and_ their inventories, recursively.
		2205
		2206	=cut
		2207
		2208	sub inv_recursive_;
		2209	sub inv_recursive_ {
		2210	map { $_, inv_recursive_ $_->inv } @_
		2211	}
		2212
		2213	sub inv_recursive {
		2214	inv_recursive_ inv $_[0]
		2215	}
		2216
		2217	package cf;
		2218
		2219	=back
1420		2220
1421	=head3 cf::object::player	2221	=head3 cf::object::player
1422		2222
1423	=over 4	2223	=over 4
1424		2224
…		…
1438		2238
1439	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2239	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1440		2240
1441	if ($self->{record_replies}) {	2241	if ($self->{record_replies}) {
1442	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2242	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2243
1443	} else {	2244	} else {
		2245	my $pl = $self->contr;
		2246
		2247	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2248	my $dialog = $pl->{npc_dialog};
		2249	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2250
		2251	} else {
1444	$msg = $npc->name . " says: $msg" if $npc;	2252	$msg = $npc->name . " says: $msg" if $npc;
1445	$self->message ($msg, $flags);	2253	$self->message ($msg, $flags);
		2254	}
1446	}	2255	}
		2256	}
		2257
		2258	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2259
		2260	=cut
		2261
		2262	sub cf::object::send_msg {
		2263	my $pl = shift->contr
		2264	or return;
		2265	$pl->send_msg (@_);
1447	}	2266	}
1448		2267
1449	=item $player_object->may ("access")	2268	=item $player_object->may ("access")
1450		2269
1451	Returns wether the given player is authorized to access resource "access"	2270	Returns wether the given player is authorized to access resource "access"
…		…
1464		2283
1465	=item $player_object->enter_link	2284	=item $player_object->enter_link
1466		2285
1467	Freezes the player and moves him/her to a special map (C<{link}>).	2286	Freezes the player and moves him/her to a special map (C<{link}>).
1468		2287
1469	The player should be reaosnably safe there for short amounts of time. You	2288	The player should be reasonably safe there for short amounts of time. You
1470	I<MUST> call C<leave_link> as soon as possible, though.	2289	I<MUST> call C<leave_link> as soon as possible, though.
1471		2290
		2291	Will never block.
		2292
1472	=item $player_object->leave_link ($map, $x, $y)	2293	=item $player_object->leave_link ($map, $x, $y)
1473		2294
1474	Moves the player out of the specila link map onto the given map. If the	2295	Moves the player out of the special C<{link}> map onto the specified
1475	map is not valid (or omitted), the player will be moved back to the	2296	map. If the map is not valid (or omitted), the player will be moved back
1476	location he/she was before the call to C<enter_link>, or, if that fails,	2297	to the location he/she was before the call to C<enter_link>, or, if that
1477	to the emergency map position.	2298	fails, to the emergency map position.
1478		2299
1479	Might block.	2300	Might block.
1480		2301
1481	=cut	2302	=cut
		2303
		2304	sub link_map {
		2305	unless ($LINK_MAP) {
		2306	$LINK_MAP = cf::map::find "{link}"
		2307	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2308	$LINK_MAP->load;
		2309	}
		2310
		2311	$LINK_MAP
		2312	}
1482		2313
1483	sub cf::object::player::enter_link {	2314	sub cf::object::player::enter_link {
1484	my ($self) = @_;	2315	my ($self) = @_;
1485		2316
1486	$self->deactivate_recursive;	2317	$self->deactivate_recursive;
1487		2318
1488	return if $self->map == $LINK_MAP;	2319	return if UNIVERSAL::isa $self->map, "ext::map_link";
1489		2320
1490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2321	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1491	if $self->map;	2322	if $self->map && $self->map->{path} ne "{link}";
1492		2323
1493	$self->enter_map ($LINK_MAP, 20, 20);	2324	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1494	}	2325	}
1495		2326
1496	sub cf::object::player::leave_link {	2327	sub cf::object::player::leave_link {
1497	my ($self, $map, $x, $y) = @_;	2328	my ($self, $map, $x, $y) = @_;
		2329
		2330	return unless $self->contr->active;
1498		2331
1499	my $link_pos = delete $self->{_link_pos};	2332	my $link_pos = delete $self->{_link_pos};
1500		2333
1501	unless ($map) {	2334	unless ($map) {
1502	# restore original map position	2335	# restore original map position
…		…
1516	# use -1 or undef as default coordinates, not 0, 0	2349	# use -1 or undef as default coordinates, not 0, 0
1517	($x, $y) = ($map->enter_x, $map->enter_y)	2350	($x, $y) = ($map->enter_x, $map->enter_y)
1518	if $x <=0 && $y <= 0;	2351	if $x <=0 && $y <= 0;
1519		2352
1520	$map->load;	2353	$map->load;
		2354	$map->load_diag;
1521		2355
		2356	return unless $self->contr->active;
1522	$self->activate_recursive;	2357	$self->activate_recursive;
		2358
		2359	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1523	$self->enter_map ($map, $x, $y);	2360	$self->enter_map ($map, $x, $y);
1524	}	2361	}
1525		2362
1526	cf::player->attach (	2363	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1527	on_logout => sub {
1528	my ($pl) = @_;
1529		2364
1530	# abort map switching before logout	2365	Moves the player to the given map-path and coordinates by first freezing
1531	if ($pl->ob->{_link_pos}) {	2366	her, loading and preparing them map, calling the provided $check callback
1532	cf::sync_job {	2367	that has to return the map if sucecssful, and then unfreezes the player on
1533	$pl->ob->leave_link	2368	the new (success) or old (failed) map position. In either case, $done will
1534	};	2369	be called at the end of this process.
1535	}
1536	},
1537	on_login => sub {
1538	my ($pl) = @_;
1539		2370
1540	# try to abort aborted map switching on player login :)
1541	# should happen only on crashes
1542	if ($pl->ob->{_link_pos}) {
1543	$pl->ob->enter_link;
1544	Coro::async_pool {
1545	# we need this sleep as the login has a concurrent enter_exit running
1546	# and this sleep increases chances of the player not ending up in scorn
1547	Coro::Timer::sleep 1;
1548	$pl->ob->leave_link;
1549	};
1550	}
1551	},
1552	);
1553
1554	=item $player_object->goto ($path, $x, $y)
1555
1556	=cut	2371	=cut
		2372
		2373	our $GOTOGEN;
1557		2374
1558	sub cf::object::player::goto {	2375	sub cf::object::player::goto {
1559	my ($self, $path, $x, $y) = @_;	2376	my ($self, $path, $x, $y, $check, $done) = @_;
		2377
		2378	# do generation counting so two concurrent goto's will be executed in-order
		2379	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1560		2380
1561	$self->enter_link;	2381	$self->enter_link;
1562		2382
1563	(Coro::async_pool {	2383	(async {
1564	$path = new cf::path $path;	2384	my $map = eval {
1565
1566	my $map = cf::map::find $path->as_string;	2385	my $map = cf::map::find $path;
		2386
		2387	if ($map) {
1567	$map = $map->customise_for ($self) if $map;	2388	$map = $map->customise_for ($self);
1568		2389	$map = $check->($map) if $check && $map;
1569	# warn "entering ", $map->path, " at ($x, $y)\n"	2390	} else {
1570	# if $map;
1571
1572	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2391	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2392	}
1573		2393
		2394	$map
		2395	};
		2396
		2397	if ($@) {
		2398	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2399	LOG llevError | logBacktrace, Carp::longmess $@;
		2400	}
		2401
		2402	if ($gen == $self->{_goto_generation}) {
		2403	delete $self->{_goto_generation};
1574	$self->leave_link ($map, $x, $y);	2404	$self->leave_link ($map, $x, $y);
		2405	}
		2406
		2407	$done->() if $done;
1575	})->prio (1);	2408	})->prio (1);
1576	}	2409	}
1577		2410
1578	=item $player_object->enter_exit ($exit_object)	2411	=item $player_object->enter_exit ($exit_object)
1579		2412
…		…
1581		2414
1582	sub parse_random_map_params {	2415	sub parse_random_map_params {
1583	my ($spec) = @_;	2416	my ($spec) = @_;
1584		2417
1585	my $rmp = { # defaults	2418	my $rmp = { # defaults
1586	xsize => 10,	2419	xsize => (cf::rndm 15, 40),
1587	ysize => 10,	2420	ysize => (cf::rndm 15, 40),
		2421	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2422	#layout => string,
1588	};	2423	};
1589		2424
1590	for (split /\n/, $spec) {	2425	for (split /\n/, $spec) {
1591	my ($k, $v) = split /\s+/, $_, 2;	2426	my ($k, $v) = split /\s+/, $_, 2;
1592		2427
…		…
1596	$rmp	2431	$rmp
1597	}	2432	}
1598		2433
1599	sub prepare_random_map {	2434	sub prepare_random_map {
1600	my ($exit) = @_;	2435	my ($exit) = @_;
		2436
		2437	my $guard = cf::lock_acquire "exit_prepare:$exit";
1601		2438
1602	# all this does is basically replace the /! path by	2439	# all this does is basically replace the /! path by
1603	# a new random map path (?random/...) with a seed	2440	# a new random map path (?random/...) with a seed
1604	# that depends on the exit object	2441	# that depends on the exit object
1605		2442
1606	my $rmp = parse_random_map_params $exit->msg;	2443	my $rmp = parse_random_map_params $exit->msg;
1607		2444
1608	if ($exit->map) {	2445	if ($exit->map) {
1609	$rmp->{region} = $exit->map->region_name;	2446	$rmp->{region} = $exit->region->name;
1610	$rmp->{origin_map} = $exit->map->path;	2447	$rmp->{origin_map} = $exit->map->path;
1611	$rmp->{origin_x} = $exit->x;	2448	$rmp->{origin_x} = $exit->x;
1612	$rmp->{origin_y} = $exit->y;	2449	$rmp->{origin_y} = $exit->y;
1613	}	2450	}
1614		2451
1615	$rmp->{random_seed} ||= $exit->random_seed;	2452	$rmp->{random_seed} ||= $exit->random_seed;
1616		2453
1617	my $data = cf::to_json $rmp;	2454	my $data = cf::to_json $rmp;
1618	my $md5 = Digest::MD5::md5_hex $data;	2455	my $md5 = Digest::MD5::md5_hex $data;
		2456	my $meta = "$RANDOMDIR/$md5.meta";
1619		2457
1620	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2458	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1621	aio_write $fh, 0, (length $data), $data, 0;	2459	aio_write $fh, 0, (length $data), $data, 0;
		2460	undef $fh;
		2461	aio_rename "$meta~", $meta;
1622		2462
1623	$exit->slaying ("?random/$md5");	2463	$exit->slaying ("?random/$md5");
1624	$exit->msg (undef);	2464	$exit->msg (undef);
1625	}	2465	}
1626	}	2466	}
…		…
1628	sub cf::object::player::enter_exit {	2468	sub cf::object::player::enter_exit {
1629	my ($self, $exit) = @_;	2469	my ($self, $exit) = @_;
1630		2470
1631	return unless $self->type == cf::PLAYER;	2471	return unless $self->type == cf::PLAYER;
1632		2472
		2473	if ($exit->slaying eq "/!") {
		2474	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2475	# the problem is that $exit might not survive long enough
		2476	# so it needs to be done right now, right here
		2477	cf::sync_job { prepare_random_map $exit };
		2478	}
		2479
		2480	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2481	my $hp = $exit->stats->hp;
		2482	my $sp = $exit->stats->sp;
		2483
1633	$self->enter_link;	2484	$self->enter_link;
1634		2485
1635	(Coro::async_pool {	2486	# if exit is damned, update players death & WoR home-position
		2487	$self->contr->savebed ($slaying, $hp, $sp)
		2488	if $exit->flag (FLAG_DAMNED);
		2489
		2490	(async {
1636	$self->deactivate_recursive; # just to be sure	2491	$self->deactivate_recursive; # just to be sure
1637	unless (eval {	2492	unless (eval {
1638	prepare_random_map $exit	2493	$self->goto ($slaying, $hp, $sp);
1639	if $exit->slaying eq "/!";
1640
1641	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1642	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1643		2494
1644	1;	2495	1;
1645	}) {	2496	}) {
1646	$self->message ("Something went wrong deep within the crossfire server. "	2497	$self->message ("Something went wrong deep within the crossfire server. "
1647	. "I'll try to bring you back to the map you were before. "	2498	. "I'll try to bring you back to the map you were before. "
1648	. "Please report this to the dungeon master",	2499	. "Please report this to the dungeon master!",
1649	cf::NDI_UNIQUE | cf::NDI_RED);	2500	cf::NDI_UNIQUE | cf::NDI_RED);
1650		2501
1651	warn "ERROR in enter_exit: $@";	2502	warn "ERROR in enter_exit: $@";
1652	$self->leave_link;	2503	$self->leave_link;
1653	}	2504	}
1654	})->prio (1);	2505	})->prio (1);
…		…
1667		2518
1668	sub cf::client::send_drawinfo {	2519	sub cf::client::send_drawinfo {
1669	my ($self, $text, $flags) = @_;	2520	my ($self, $text, $flags) = @_;
1670		2521
1671	utf8::encode $text;	2522	utf8::encode $text;
1672	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2523	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1673	}	2524	}
1674		2525
		2526	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2527
		2528	Send a drawinfo or msg packet to the client, formatting the msg for the
		2529	client if neccessary. C<$type> should be a string identifying the type of
		2530	the message, with C<log> being the default. If C<$color> is negative, suppress
		2531	the message unless the client supports the msg packet.
		2532
		2533	=cut
		2534
		2535	sub cf::client::send_msg {
		2536	my ($self, $channel, $msg, $color, @extra) = @_;
		2537
		2538	$msg = $self->pl->expand_cfpod ($msg);
		2539
		2540	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2541
		2542	if (ref $channel) {
		2543	# send meta info to client, if not yet sent
		2544	unless (exists $self->{channel}{$channel->{id}}) {
		2545	$self->{channel}{$channel->{id}} = $channel;
		2546	$self->ext_msg (channel_info => $channel);
		2547	}
		2548
		2549	$channel = $channel->{id};
		2550	}
		2551
		2552	return unless @extra || length $msg;
		2553
		2554	if ($self->can_msg) {
		2555	# default colour, mask it out
		2556	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2557	if $color & cf::NDI_DEF;
		2558
		2559	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2560	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2561	} else {
		2562	if ($color >= 0) {
		2563	# replace some tags by gcfclient-compatible ones
		2564	for ($msg) {
		2565	1 while
		2566	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2567	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2568	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2569	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2570	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2571	}
		2572
		2573	$color &= cf::NDI_COLOR_MASK;
		2574
		2575	utf8::encode $msg;
		2576
		2577	if (0 && $msg =~ /\[/) {
		2578	# COMMAND/INFO
		2579	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2580	} else {
		2581	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2582	$self->send_packet ("drawinfo $color $msg")
		2583	}
		2584	}
		2585	}
		2586	}
		2587
		2588	=item $client->ext_msg ($type, @msg)
		2589
		2590	Sends an ext event to the client.
		2591
		2592	=cut
		2593
		2594	sub cf::client::ext_msg($$@) {
		2595	my ($self, $type, @msg) = @_;
		2596
		2597	my $extcmd = $self->extcmd;
		2598
		2599	if ($extcmd == 2) {
		2600	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2601	} elsif ($extcmd == 1) { # TODO: remove
		2602	push @msg, msgtype => "event_$type";
		2603	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2604	}
		2605	}
1675		2606
1676	=item $success = $client->query ($flags, "text", \&cb)	2607	=item $success = $client->query ($flags, "text", \&cb)
1677		2608
1678	Queues a query to the client, calling the given callback with	2609	Queues a query to the client, calling the given callback with
1679	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2610	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1680	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2611	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1681		2612
1682	Queries can fail, so check the return code. Or don't, as queries will become	2613	Queries can fail, so check the return code. Or don't, as queries will
1683	reliable at some point in the future.	2614	become reliable at some point in the future.
1684		2615
1685	=cut	2616	=cut
1686		2617
1687	sub cf::client::query {	2618	sub cf::client::query {
1688	my ($self, $flags, $text, $cb) = @_;	2619	my ($self, $flags, $text, $cb) = @_;
…		…
1696	utf8::encode $text;	2627	utf8::encode $text;
1697	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2628	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1698		2629
1699	$self->send_packet ($self->{query_queue}[0][0])	2630	$self->send_packet ($self->{query_queue}[0][0])
1700	if @{ $self->{query_queue} } == 1;	2631	if @{ $self->{query_queue} } == 1;
		2632
		2633	1
1701	}	2634	}
1702		2635
1703	cf::client->attach (	2636	cf::client->attach (
		2637	on_connect => sub {
		2638	my ($ns) = @_;
		2639
		2640	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2641	},
1704	on_reply => sub {	2642	on_reply => sub {
1705	my ($ns, $msg) = @_;	2643	my ($ns, $msg) = @_;
1706		2644
1707	# this weird shuffling is so that direct followup queries	2645	# this weird shuffling is so that direct followup queries
1708	# get handled first	2646	# get handled first
1709	my $queue = delete $ns->{query_queue}	2647	my $queue = delete $ns->{query_queue}
1710	or return; # be conservative, not sure how that can happen, but we saw a crash here	2648	or return; # be conservative, not sure how that can happen, but we saw a crash here
1711		2649
1712	(shift @$queue)->[1]->($msg);	2650	(shift @$queue)->[1]->($msg);
		2651	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1713		2652
1714	push @{ $ns->{query_queue} }, @$queue;	2653	push @{ $ns->{query_queue} }, @$queue;
1715		2654
1716	if (@{ $ns->{query_queue} } == @$queue) {	2655	if (@{ $ns->{query_queue} } == @$queue) {
1717	if (@$queue) {	2656	if (@$queue) {
…		…
1719	} else {	2658	} else {
1720	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2659	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1721	}	2660	}
1722	}	2661	}
1723	},	2662	},
		2663	on_exticmd => sub {
		2664	my ($ns, $buf) = @_;
		2665
		2666	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2667
		2668	if (ref $msg) {
		2669	my ($type, $reply, @payload) =
		2670	"ARRAY" eq ref $msg
		2671	? @$msg
		2672	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2673
		2674	if (my $cb = $EXTICMD{$type}) {
		2675	my @reply = $cb->($ns, @payload);
		2676
		2677	$ns->ext_reply ($reply, @reply)
		2678	if $reply;
		2679	}
		2680	} else {
		2681	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2682	}
		2683
		2684	cf::override;
		2685	},
1724	);	2686	);
1725		2687
1726	=item $client->coro (\&cb)	2688	=item $client->async (\&cb)
1727		2689
1728	Create a new coroutine, running the specified callback. The coroutine will	2690	Create a new coroutine, running the specified callback. The coroutine will
1729	be automatically cancelled when the client gets destroyed (e.g. on logout,	2691	be automatically cancelled when the client gets destroyed (e.g. on logout,
1730	or loss of connection).	2692	or loss of connection).
1731		2693
1732	=cut	2694	=cut
1733		2695
1734	sub cf::client::coro {	2696	sub cf::client::async {
1735	my ($self, $cb) = @_;	2697	my ($self, $cb) = @_;
1736		2698
1737	my $coro = &Coro::async_pool ($cb);	2699	my $coro = &Coro::async ($cb);
1738		2700
1739	$coro->on_destroy (sub {	2701	$coro->on_destroy (sub {
1740	delete $self->{_coro}{$coro+0};	2702	delete $self->{_coro}{$coro+0};
1741	});	2703	});
1742		2704
…		…
1769	our $safe = new Safe "safe";	2731	our $safe = new Safe "safe";
1770	our $safe_hole = new Safe::Hole;	2732	our $safe_hole = new Safe::Hole;
1771		2733
1772	$SIG{FPE} = 'IGNORE';	2734	$SIG{FPE} = 'IGNORE';
1773		2735
1774	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2736	$safe->permit_only (Opcode::opset qw(
		2737	:base_core :base_mem :base_orig :base_math
		2738	grepstart grepwhile mapstart mapwhile
		2739	sort time
		2740	));
1775		2741
1776	# here we export the classes and methods available to script code	2742	# here we export the classes and methods available to script code
1777		2743
1778	=pod	2744	=pod
1779		2745
1780	The following fucntions and emthods are available within a safe environment:	2746	The following functions and methods are available within a safe environment:
1781		2747
1782	cf::object contr pay_amount pay_player map	2748	cf::object
		2749	contr pay_amount pay_player map x y force_find force_add
		2750	insert remove name archname title slaying race
		2751
1783	cf::object::player player	2752	cf::object::player
1784	cf::player peaceful	2753	player
1785	cf::map trigger	2754
		2755	cf::player
		2756	peaceful
		2757
		2758	cf::map
		2759	trigger
1786		2760
1787	=cut	2761	=cut
1788		2762
1789	for (	2763	for (
1790	["cf::object" => qw(contr pay_amount pay_player map)],	2764	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2765	insert remove inv name archname title slaying race)],
1791	["cf::object::player" => qw(player)],	2766	["cf::object::player" => qw(player)],
1792	["cf::player" => qw(peaceful)],	2767	["cf::player" => qw(peaceful)],
1793	["cf::map" => qw(trigger)],	2768	["cf::map" => qw(trigger)],
1794	) {	2769	) {
1795	no strict 'refs';	2770	no strict 'refs';
…		…
1866	=back	2841	=back
1867		2842
1868	=cut	2843	=cut
1869		2844
1870	#############################################################################	2845	#############################################################################
		2846	# the server's init and main functions
1871		2847
1872	=head2 EXTENSION DATABASE SUPPORT	2848	sub load_facedata($) {
		2849	my ($path) = @_;
1873		2850
1874	Crossfire maintains a very simple database for extension use. It can	2851	warn "loading facedata from $path\n";
1875	currently store anything that can be serialised using Storable, which
1876	excludes objects.
1877		2852
1878	The parameter C<$family> should best start with the name of the extension	2853	my $facedata;
1879	using it, it should be unique.	2854	0 < aio_load $path, $facedata
		2855	or die "$path: $!";
1880		2856
1881	=over 4	2857	$facedata = Coro::Storable::thaw $facedata;
1882		2858
1883	=item $hashref = cf::db_get $family	2859	$facedata->{version} == 2
		2860	or cf::cleanup "$path: version mismatch, cannot proceed.";
1884		2861
1885	Return a hashref for use by the extension C<$family>, which can be
1886	modified. After modifications, you have to call C<cf::db_dirty> or
1887	C<cf::db_sync>.
1888
1889	=item $value = cf::db_get $family => $key
1890
1891	Returns a single value from the database
1892
1893	=item cf::db_put $family => $hashref
1894
1895	Stores the given family hashref into the database. Updates are delayed, if
1896	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1897
1898	=item cf::db_put $family => $key => $value
1899
1900	Stores the given C<$value> in the family hash. Updates are delayed, if you
1901	want the data to be synced to disk immediately, use C<cf::db_sync>.
1902
1903	=item cf::db_dirty
1904
1905	Marks the database as dirty, to be updated at a later time.
1906
1907	=item cf::db_sync
1908
1909	Immediately write the database to disk I<if it is dirty>.
1910
1911	=cut
1912
1913	our $DB;
1914
1915	{
1916	my $path = cf::localdir . "/database.pst";
1917
1918	sub db_load() {
1919	$DB = stat $path ? Storable::retrieve $path : { };
1920	}	2862	{
		2863	my $faces = $facedata->{faceinfo};
1921		2864
1922	my $pid;	2865	while (my ($face, $info) = each %$faces) {
		2866	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2867	cf::face::set_visibility $idx, $info->{visibility};
		2868	cf::face::set_magicmap $idx, $info->{magicmap};
		2869	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2870	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1923		2871
1924	sub db_save() {	2872	cf::cede_to_tick;
1925	waitpid $pid, 0 if $pid;
1926	if (0 == ($pid = fork)) {
1927	$DB->{_meta}{version} = 1;
1928	Storable::nstore $DB, "$path~";
1929	rename "$path~", $path;
1930	cf::_exit 0 if defined $pid;
1931	}
1932	}
1933
1934	my $dirty;
1935
1936	sub db_sync() {
1937	db_save if $dirty;
1938	undef $dirty;
1939	}
1940
1941	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1942	db_sync;
1943	});
1944
1945	sub db_dirty() {
1946	$dirty = 1;
1947	$idle->start;
1948	}
1949
1950	sub db_get($;$) {
1951	@_ >= 2
1952	? $DB->{$_[0]}{$_[1]}
1953	: ($DB->{$_[0]} ||= { })
1954	}
1955
1956	sub db_put($$;$) {
1957	if (@_ >= 3) {
1958	$DB->{$_[0]}{$_[1]} = $_[2];
1959	} else {
1960	$DB->{$_[0]} = $_[1];
1961	}
1962	db_dirty;
1963	}
1964
1965	cf::global->attach (
1966	prio => 10000,
1967	on_cleanup => sub {
1968	db_sync;
1969	},	2873	}
1970	);
1971	}
1972		2874
1973	#############################################################################	2875	while (my ($face, $info) = each %$faces) {
1974	# the server's main()	2876	next unless $info->{smooth};
		2877	my $idx = cf::face::find $face
		2878	or next;
		2879	if (my $smooth = cf::face::find $info->{smooth}) {
		2880	cf::face::set_smooth $idx, $smooth;
		2881	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2882	} else {
		2883	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2884	}
		2885
		2886	cf::cede_to_tick;
		2887	}
		2888	}
		2889
		2890	{
		2891	my $anims = $facedata->{animinfo};
		2892
		2893	while (my ($anim, $info) = each %$anims) {
		2894	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2895	cf::cede_to_tick;
		2896	}
		2897
		2898	cf::anim::invalidate_all; # d'oh
		2899	}
		2900
		2901	{
		2902	# TODO: for gcfclient pleasure, we should give resources
		2903	# that gcfclient doesn't grok a >10000 face index.
		2904	my $res = $facedata->{resource};
		2905	my $enc = JSON::XS->new->utf8->canonical;
		2906
		2907	my $soundconf = delete $res->{"res/sound.conf"};
		2908
		2909	while (my ($name, $info) = each %$res) {
		2910	my $meta = $enc->encode ({
		2911	name => $name,
		2912	%{ $info->{meta} || {} },
		2913	});
		2914
		2915	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2916
		2917	if ($info->{type} & 1) {
		2918	# prepend meta info
		2919
		2920	my $data = pack "(w/a*)*", $meta, $info->{data};
		2921	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2922
		2923	cf::face::set_data $idx, 0, $data, $chk;
		2924	} else {
		2925	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2926	}
		2927
		2928	cf::face::set_type $idx, $info->{type};
		2929
		2930	cf::cede_to_tick;
		2931	}
		2932
		2933	if ($soundconf) {
		2934	$soundconf = $enc->decode (delete $soundconf->{data});
		2935
		2936	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2937	my $sound = $soundconf->{compat}[$_]
		2938	or next;
		2939
		2940	my $face = cf::face::find "sound/$sound->[1]";
		2941	cf::sound::set $sound->[0] => $face;
		2942	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2943	}
		2944
		2945	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2946	my $face = cf::face::find "sound/$v";
		2947	cf::sound::set $k => $face;
		2948	}
		2949	}
		2950	}
		2951
		2952	1
		2953	}
		2954
		2955	register_exticmd fx_want => sub {
		2956	my ($ns, $want) = @_;
		2957
		2958	while (my ($k, $v) = each %$want) {
		2959	$ns->fx_want ($k, $v);
		2960	}
		2961	};
		2962
		2963	sub reload_regions {
		2964	load_resource_file "$MAPDIR/regions"
		2965	or die "unable to load regions file\n";
		2966
		2967	for (cf::region::list) {
		2968	$_->{match} = qr/$_->{match}/
		2969	if exists $_->{match};
		2970	}
		2971	}
		2972
		2973	sub reload_facedata {
		2974	load_facedata "$DATADIR/facedata"
		2975	or die "unable to load facedata\n";
		2976	}
		2977
		2978	sub reload_archetypes {
		2979	load_resource_file "$DATADIR/archetypes"
		2980	or die "unable to load archetypes\n";
		2981	#d# NEED to laod twice to resolve forward references
		2982	# this really needs to be done in an extra post-pass
		2983	# (which needs to be synchronous, so solve it differently)
		2984	load_resource_file "$DATADIR/archetypes"
		2985	or die "unable to load archetypes\n";
		2986	}
		2987
		2988	sub reload_treasures {
		2989	load_resource_file "$DATADIR/treasures"
		2990	or die "unable to load treasurelists\n";
		2991	}
		2992
		2993	sub reload_resources {
		2994	warn "reloading resource files...\n";
		2995
		2996	reload_regions;
		2997	reload_facedata;
		2998	#reload_archetypes;#d#
		2999	reload_archetypes;
		3000	reload_treasures;
		3001
		3002	warn "finished reloading resource files\n";
		3003	}
		3004
		3005	sub init {
		3006	reload_resources;
		3007	}
1975		3008
1976	sub cfg_load {	3009	sub cfg_load {
1977	open my $fh, "<:utf8", cf::confdir . "/config"	3010	open my $fh, "<:utf8", "$CONFDIR/config"
1978	or return;	3011	or return;
1979		3012
1980	local $/;	3013	local $/;
1981	*CFG = YAML::Syck::Load <$fh>;	3014	*CFG = YAML::Syck::Load <$fh>;
1982		3015
1983	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3016	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1984		3017
		3018	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3019	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3020
1985	if (exists $CFG{mlockall}) {	3021	if (exists $CFG{mlockall}) {
1986	eval {	3022	eval {
1987	$CFG{mlockall} ? &mlockall : &munlockall	3023	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1988	and die "WARNING: m(un)lockall failed: $!\n";	3024	and die "WARNING: m(un)lockall failed: $!\n";
1989	};	3025	};
1990	warn $@ if $@;	3026	warn $@ if $@;
1991	}	3027	}
1992	}	3028	}
1993		3029
1994	sub main {	3030	sub main {
1995	# we must not ever block the main coroutine	3031	# we must not ever block the main coroutine
1996	local $Coro::idle = sub {	3032	local $Coro::idle = sub {
1997	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3033	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1998	(Coro::unblock_sub {	3034	(async {
1999	Event::one_event;	3035	Event::one_event;
2000	})->();	3036	})->prio (Coro::PRIO_MAX);
2001	};	3037	};
2002		3038
2003	cfg_load;	3039	cfg_load;
2004	db_load;	3040	db_init;
2005	load_extensions;	3041	load_extensions;
		3042
		3043	$TICK_WATCHER->start;
2006	Event::loop;	3044	Event::loop;
2007	}	3045	}
2008		3046
2009	#############################################################################	3047	#############################################################################
2010	# initialisation	3048	# initialisation and cleanup
2011		3049
		3050	# install some emergency cleanup handlers
		3051	BEGIN {
		3052	for my $signal (qw(INT HUP TERM)) {
		3053	Event->signal (
		3054	reentrant => 0,
		3055	data => WF_AUTOCANCEL,
		3056	signal => $signal,
		3057	prio => 0,
		3058	cb => sub {
		3059	cf::cleanup "SIG$signal";
		3060	},
		3061	);
		3062	}
		3063	}
		3064
		3065	sub write_runtime {
		3066	my $runtime = "$LOCALDIR/runtime";
		3067
		3068	# first touch the runtime file to show we are still running:
		3069	# the fsync below can take a very very long time.
		3070
		3071	IO::AIO::aio_utime $runtime, undef, undef;
		3072
		3073	my $guard = cf::lock_acquire "write_runtime";
		3074
		3075	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3076	or return;
		3077
		3078	my $value = $cf::RUNTIME + 90 + 10;
		3079	# 10 is the runtime save interval, for a monotonic clock
		3080	# 60 allows for the watchdog to kill the server.
		3081
		3082	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3083	and return;
		3084
		3085	# always fsync - this file is important
		3086	aio_fsync $fh
		3087	and return;
		3088
		3089	# touch it again to show we are up-to-date
		3090	aio_utime $fh, undef, undef;
		3091
		3092	close $fh
		3093	or return;
		3094
		3095	aio_rename "$runtime~", $runtime
		3096	and return;
		3097
		3098	warn "runtime file written.\n";
		3099
		3100	1
		3101	}
		3102
		3103	sub emergency_save() {
		3104	my $freeze_guard = cf::freeze_mainloop;
		3105
		3106	warn "enter emergency perl save\n";
		3107
		3108	cf::sync_job {
		3109	# use a peculiar iteration method to avoid tripping on perl
		3110	# refcount bugs in for. also avoids problems with players
		3111	# and maps saved/destroyed asynchronously.
		3112	warn "begin emergency player save\n";
		3113	for my $login (keys %cf::PLAYER) {
		3114	my $pl = $cf::PLAYER{$login} or next;
		3115	$pl->valid or next;
		3116	$pl->save;
		3117	}
		3118	warn "end emergency player save\n";
		3119
		3120	warn "begin emergency map save\n";
		3121	for my $path (keys %cf::MAP) {
		3122	my $map = $cf::MAP{$path} or next;
		3123	$map->valid or next;
		3124	$map->save;
		3125	}
		3126	warn "end emergency map save\n";
		3127
		3128	warn "begin emergency database checkpoint\n";
		3129	BDB::db_env_txn_checkpoint $DB_ENV;
		3130	warn "end emergency database checkpoint\n";
		3131	};
		3132
		3133	warn "leave emergency perl save\n";
		3134	}
		3135
		3136	sub post_cleanup {
		3137	my ($make_core) = @_;
		3138
		3139	warn Carp::longmess "post_cleanup backtrace"
		3140	if $make_core;
		3141	}
		3142
2012	sub reload() {	3143	sub do_reload_perl() {
2013	# can/must only be called in main	3144	# can/must only be called in main
2014	if ($Coro::current != $Coro::main) {	3145	if ($Coro::current != $Coro::main) {
2015	warn "can only reload from main coroutine\n";	3146	warn "can only reload from main coroutine";
2016	return;	3147	return;
2017	}	3148	}
2018		3149
2019	warn "reloading...";	3150	warn "reloading...";
2020		3151
2021	my $guard = freeze_mainloop;	3152	warn "entering sync_job";
		3153
		3154	cf::sync_job {
		3155	cf::write_runtime; # external watchdog should not bark
2022	cf::emergency_save;	3156	cf::emergency_save;
		3157	cf::write_runtime; # external watchdog should not bark
2023		3158
2024	eval {	3159	warn "syncing database to disk";
		3160	BDB::db_env_txn_checkpoint $DB_ENV;
		3161
2025	# if anything goes wrong in here, we should simply crash as we already saved	3162	# if anything goes wrong in here, we should simply crash as we already saved
2026		3163
2027	# cancel all watchers	3164	warn "cancelling all WF_AUTOCANCEL watchers";
2028	for (Event::all_watchers) {	3165	for (Event::all_watchers) {
2029	$_->cancel if $_->data & WF_AUTOCANCEL;	3166	$_->cancel if $_->data & WF_AUTOCANCEL;
2030	}	3167	}
2031		3168
		3169	warn "flushing outstanding aio requests";
		3170	for (;;) {
		3171	BDB::flush;
		3172	IO::AIO::flush;
		3173	Coro::cede;
		3174	last unless IO::AIO::nreqs || BDB::nreqs;
		3175	warn "iterate...";
		3176	}
		3177
		3178	++$RELOAD;
		3179
2032	# cancel all extension coros	3180	warn "cancelling all extension coros";
2033	$_->cancel for values %EXT_CORO;	3181	$_->cancel for values %EXT_CORO;
2034	%EXT_CORO = ();	3182	%EXT_CORO = ();
2035		3183
2036	# unload all extensions	3184	warn "removing commands";
2037	for (@exts) {	3185	%COMMAND = ();
		3186
		3187	warn "removing ext/exti commands";
		3188	%EXTCMD = ();
		3189	%EXTICMD = ();
		3190
		3191	warn "unloading/nuking all extensions";
		3192	for my $pkg (@EXTS) {
2038	warn "unloading <$_>";	3193	warn "... unloading $pkg";
2039	unload_extension $_;	3194
		3195	if (my $cb = $pkg->can ("unload")) {
		3196	eval {
		3197	$cb->($pkg);
		3198	1
		3199	} or warn "$pkg unloaded, but with errors: $@";
2040	}	3200	}
2041		3201
		3202	warn "... nuking $pkg";
		3203	Symbol::delete_package $pkg;
		3204	}
		3205
2042	# unload all modules loaded from $LIBDIR	3206	warn "unloading all perl modules loaded from $LIBDIR";
2043	while (my ($k, $v) = each %INC) {	3207	while (my ($k, $v) = each %INC) {
2044	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3208	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2045		3209
2046	warn "removing <$k>";	3210	warn "... unloading $k";
2047	delete $INC{$k};	3211	delete $INC{$k};
2048		3212
2049	$k =~ s/\.pm$//;	3213	$k =~ s/\.pm$//;
2050	$k =~ s/\//::/g;	3214	$k =~ s/\//::/g;
2051		3215
…		…
2054	}	3218	}
2055		3219
2056	Symbol::delete_package $k;	3220	Symbol::delete_package $k;
2057	}	3221	}
2058		3222
2059	# sync database to disk
2060	cf::db_sync;
2061	IO::AIO::flush;
2062
2063	# get rid of safe::, as good as possible	3223	warn "getting rid of safe::, as good as possible";
2064	Symbol::delete_package "safe::$_"	3224	Symbol::delete_package "safe::$_"
2065	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3225	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2066		3226
2067	# remove register_script_function callbacks
2068	# TODO
2069
2070	# unload cf.pm "a bit"	3227	warn "unloading cf.pm \"a bit\"";
2071	delete $INC{"cf.pm"};	3228	delete $INC{"cf.pm"};
		3229	delete $INC{"cf/pod.pm"};
2072		3230
2073	# don't, removes xs symbols, too,	3231	# don't, removes xs symbols, too,
2074	# and global variables created in xs	3232	# and global variables created in xs
2075	#Symbol::delete_package __PACKAGE__;	3233	#Symbol::delete_package __PACKAGE__;
2076		3234
2077	# reload cf.pm	3235	warn "unload completed, starting to reload now";
		3236
2078	warn "reloading cf.pm";	3237	warn "reloading cf.pm";
2079	require cf;	3238	require cf;
2080	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3239	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2081		3240
2082	# load config and database again	3241	warn "loading config and database again";
2083	cf::cfg_load;	3242	cf::cfg_load;
2084	cf::db_load;
2085		3243
2086	# load extensions
2087	warn "load extensions";	3244	warn "loading extensions";
2088	cf::load_extensions;	3245	cf::load_extensions;
2089		3246
2090	# reattach attachments to objects	3247	warn "reattaching attachments to objects/players";
2091	warn "reattach";	3248	_global_reattach; # objects, sockets
2092	_global_reattach;	3249	warn "reattaching attachments to maps";
2093	};	3250	reattach $_ for values %MAP;
		3251	warn "reattaching attachments to players";
		3252	reattach $_ for values %PLAYER;
2094		3253
2095	if ($@) {	3254	warn "leaving sync_job";
		3255
		3256	1
		3257	} or do {
2096	warn $@;	3258	warn $@;
2097	warn "error while reloading, exiting.";	3259	warn "error while reloading, exiting.";
2098	exit 1;	3260	exit 1;
2099	}	3261	};
2100		3262
2101	warn "reloaded successfully";	3263	warn "reloaded";
2102	};	3264	};
2103		3265
2104	#############################################################################	3266	our $RELOAD_WATCHER; # used only during reload
2105		3267
2106	unless ($LINK_MAP) {	3268	sub reload_perl() {
2107	$LINK_MAP = cf::map::new;	3269	# doing reload synchronously and two reloads happen back-to-back,
		3270	# coro crashes during coro_state_free->destroy here.
2108		3271
2109	$LINK_MAP->width (41);	3272	$RELOAD_WATCHER ||= Event->timer (
2110	$LINK_MAP->height (41);	3273	reentrant => 0,
2111	$LINK_MAP->alloc;
2112	$LINK_MAP->path ("{link}");
2113	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2114	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2115
2116	# dirty hack because... archetypes are not yet loaded
2117	Event->timer (
2118	after => 2,	3274	after => 0,
		3275	data => WF_AUTOCANCEL,
2119	cb => sub {	3276	cb => sub {
2120	$_[0]->w->cancel;	3277	do_reload_perl;
2121		3278	undef $RELOAD_WATCHER;
2122	# provide some exits "home"
2123	my $exit = cf::object::new "exit";
2124
2125	$exit->slaying ($EMERGENCY_POSITION->[0]);
2126	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2127	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2128
2129	$LINK_MAP->insert ($exit->clone, 19, 19);
2130	$LINK_MAP->insert ($exit->clone, 19, 20);
2131	$LINK_MAP->insert ($exit->clone, 19, 21);
2132	$LINK_MAP->insert ($exit->clone, 20, 19);
2133	$LINK_MAP->insert ($exit->clone, 20, 21);
2134	$LINK_MAP->insert ($exit->clone, 21, 19);
2135	$LINK_MAP->insert ($exit->clone, 21, 20);
2136	$LINK_MAP->insert ($exit->clone, 21, 21);
2137
2138	$exit->destroy;
2139	});	3279	},
2140		3280	);
2141	$LINK_MAP->{deny_save} = 1;
2142	$LINK_MAP->{deny_reset} = 1;
2143
2144	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2145	}	3281	}
2146
2147	register "<global>", __PACKAGE__;
2148		3282
2149	register_command "reload" => sub {	3283	register_command "reload" => sub {
2150	my ($who, $arg) = @_;	3284	my ($who, $arg) = @_;
2151		3285
2152	if ($who->flag (FLAG_WIZ)) {	3286	if ($who->flag (FLAG_WIZ)) {
2153	$who->message ("start of reload.");
2154	reload;
2155	$who->message ("end of reload.");	3287	$who->message ("reloading server.");
		3288	async { reload_perl };
2156	}	3289	}
2157	};	3290	};
2158		3291
2159	unshift @INC, $LIBDIR;	3292	unshift @INC, $LIBDIR;
2160		3293
		3294	my $bug_warning = 0;
		3295
		3296	our @WAIT_FOR_TICK;
		3297	our @WAIT_FOR_TICK_BEGIN;
		3298
		3299	sub wait_for_tick {
		3300	return unless $TICK_WATCHER->is_active;
		3301	return if $Coro::current == $Coro::main;
		3302
		3303	my $signal = new Coro::Signal;
		3304	push @WAIT_FOR_TICK, $signal;
		3305	$signal->wait;
		3306	}
		3307
		3308	sub wait_for_tick_begin {
		3309	return unless $TICK_WATCHER->is_active;
		3310	return if $Coro::current == $Coro::main;
		3311
		3312	my $signal = new Coro::Signal;
		3313	push @WAIT_FOR_TICK_BEGIN, $signal;
		3314	$signal->wait;
		3315	}
		3316
		3317	my $min = 1e6;#d#
		3318	my $avg = 10;
2161	$TICK_WATCHER = Event->timer (	3319	$TICK_WATCHER = Event->timer (
2162	reentrant => 0,	3320	reentrant => 0,
		3321	parked => 1,
2163	prio => 0,	3322	prio => 0,
2164	at => $NEXT_TICK || $TICK,	3323	at => $NEXT_TICK || $TICK,
2165	data => WF_AUTOCANCEL,	3324	data => WF_AUTOCANCEL,
2166	cb => sub {	3325	cb => sub {
		3326	if ($Coro::current != $Coro::main) {
		3327	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3328	unless ++$bug_warning > 10;
		3329	return;
		3330	}
		3331
		3332	$NOW = $tick_start = Event::time;
		3333
2167	cf::server_tick; # one server iteration	3334	cf::server_tick; # one server iteration
		3335
		3336	0 && sync_job {#d#
		3337	for(1..10) {
		3338	my $t = Event::time;
		3339	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3340	or die;
		3341
		3342	$map->width (50);
		3343	$map->height (50);
		3344	$map->alloc;
		3345	$map->_load_objects ("/tmp/x.map", 1);
		3346	my $t = Event::time - $t;
		3347
		3348	#next unless $t < 0.0013;#d#
		3349	if ($t < $min) {
		3350	$min = $t;
		3351	}
		3352	$avg = $avg * 0.99 + $t * 0.01;
		3353	}
		3354	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3355	exit 0;
		3356	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3357	};
		3358
2168	$RUNTIME += $TICK;	3359	$RUNTIME += $TICK;
2169	$NEXT_TICK += $TICK;	3360	$NEXT_TICK += $TICK;
2170		3361
		3362	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3363	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3364	Coro::async_pool {
		3365	write_runtime
		3366	or warn "ERROR: unable to write runtime file: $!";
		3367	};
		3368	}
		3369
		3370	# my $AFTER = Event::time;
		3371	# warn $AFTER - $NOW;#d#
		3372
		3373	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3374	$sig->send;
		3375	}
		3376	while (my $sig = shift @WAIT_FOR_TICK) {
		3377	$sig->send;
		3378	}
		3379
		3380	$NOW = Event::time;
		3381
2171	# if we are delayed by four ticks or more, skip them all	3382	# if we are delayed by four ticks or more, skip them all
2172	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3383	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2173		3384
2174	$TICK_WATCHER->at ($NEXT_TICK);	3385	$TICK_WATCHER->at ($NEXT_TICK);
2175	$TICK_WATCHER->start;	3386	$TICK_WATCHER->start;
		3387
		3388	$LOAD = ($NOW - $tick_start) / $TICK;
		3389	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3390
		3391	_post_tick;
		3392
		3393
2176	},	3394	},
2177	);	3395	);
2178		3396
		3397	{
2179	IO::AIO::max_poll_time $TICK * 0.2;	3398	BDB::max_poll_time $TICK * 0.1;
2180		3399	$BDB_POLL_WATCHER = Event->io (
2181	Event->io (	3400	reentrant => 0,
2182	fd => IO::AIO::poll_fileno,	3401	fd => BDB::poll_fileno,
2183	poll => 'r',	3402	poll => 'r',
2184	prio => 5,	3403	prio => 0,
2185	data => WF_AUTOCANCEL,
2186	cb => \&IO::AIO::poll_cb,
2187	);
2188
2189	Event->timer (
2190	data => WF_AUTOCANCEL,	3404	data => WF_AUTOCANCEL,
2191	after => 0,	3405	cb => \&BDB::poll_cb,
2192	interval => 10,	3406	);
2193	cb => sub {	3407	BDB::min_parallel 8;
2194	(Coro::unblock_sub {	3408
2195	write_runtime	3409	BDB::set_sync_prepare {
2196	or warn "ERROR: unable to write runtime file: $!";	3410	my $status;
		3411	my $current = $Coro::current;
		3412	(
		3413	sub {
		3414	$status = $!;
		3415	$current->ready; undef $current;
		3416	},
		3417	sub {
		3418	Coro::schedule while defined $current;
		3419	$! = $status;
		3420	},
		3421	)
		3422	};
		3423
		3424	unless ($DB_ENV) {
		3425	$DB_ENV = BDB::db_env_create;
		3426
		3427	cf::sync_job {
		3428	eval {
		3429	BDB::db_env_open
		3430	$DB_ENV,
		3431	$BDBDIR,
		3432	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3433	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3434	0666;
		3435
		3436	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3437
		3438	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3439	$DB_ENV->set_lk_detect;
		3440	};
		3441
		3442	cf::cleanup "db_env_open(db): $@" if $@;
2197	})->();	3443	};
2198	},	3444	}
2199	);	3445	}
		3446
		3447	{
		3448	IO::AIO::min_parallel 8;
		3449
		3450	undef $Coro::AIO::WATCHER;
		3451	IO::AIO::max_poll_time $TICK * 0.1;
		3452	$AIO_POLL_WATCHER = Event->io (
		3453	reentrant => 0,
		3454	data => WF_AUTOCANCEL,
		3455	fd => IO::AIO::poll_fileno,
		3456	poll => 'r',
		3457	prio => 6,
		3458	cb => \&IO::AIO::poll_cb,
		3459	);
		3460	}
		3461
		3462	my $_log_backtrace;
		3463
		3464	sub _log_backtrace {
		3465	my ($msg, @addr) = @_;
		3466
		3467	$msg =~ s/\n//;
		3468
		3469	# limit the # of concurrent backtraces
		3470	if ($_log_backtrace < 2) {
		3471	++$_log_backtrace;
		3472	async {
		3473	my @bt = fork_call {
		3474	@addr = map { sprintf "%x", $_ } @addr;
		3475	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3476	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3477	or die "addr2line: $!";
		3478
		3479	my @funcs;
		3480	my @res = <$fh>;
		3481	chomp for @res;
		3482	while (@res) {
		3483	my ($func, $line) = splice @res, 0, 2, ();
		3484	push @funcs, "[$func] $line";
		3485	}
		3486
		3487	@funcs
		3488	};
		3489
		3490	LOG llevInfo, "[ABT] $msg\n";
		3491	LOG llevInfo, "[ABT] $_\n" for @bt;
		3492	--$_log_backtrace;
		3493	};
		3494	} else {
		3495	LOG llevInfo, "[ABT] $msg\n";
		3496	LOG llevInfo, "[ABT] [suppressed]\n";
		3497	}
		3498	}
		3499
		3500	# load additional modules
		3501	use cf::pod;
2200		3502
2201	END { cf::emergency_save }	3503	END { cf::emergency_save }
2202		3504
2203	1	3505	1
2204		3506

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