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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.318 by root, Tue Jul 24 04:55:34 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
226	=item cf::async { BLOCK }	311	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	312	my ($key) = @_;
235		313
236	Coro::async {	314	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	315	}
241		316
242	sub freeze_mainloop {	317	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
244		319
245	my $guard = Coro::guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
246	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
247	$guard	324	$guard
248	}	325	}
249		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
250	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
251		394
252	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)
253	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
254	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.
255		399
256	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
257	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
258	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
259	fast or be very important.	403	fast or be very important.
…		…
262		406
263	sub sync_job(&) {	407	sub sync_job(&) {
264	my ($job) = @_;	408	my ($job) = @_;
265		409
266	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
267	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
269		415
270	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	417	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	418	my $freeze_guard = freeze_mainloop;
273		419
274	my $busy = 1;	420	my $busy = 1;
275	my @res;	421	my @res;
276		422
277	(Coro::async {	423	(async {
278	@res = eval { $job->() };	424	@res = eval { $job->() };
279	warn $@ if $@;	425	warn $@ if $@;
280	undef $busy;	426	undef $busy;
281	})->prio (Coro::PRIO_MAX);	427	})->prio (Coro::PRIO_MAX);
282		428
283	while ($busy) {	429	while ($busy) {
284	Coro::cede_notself;	430	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	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
287		439
288	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
289	} else {	441	} else {
290	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
291		443
292	$job->()	444	$job->()
293	}	445	}
294	}	446	}
295		447
296	=item $coro = cf::coro { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
297		449
298	Creates and returns a new coro. This coro is automcatially being canceled	450	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	451	extension calling this is being unloaded.
300		452
301	=cut	453	=cut
302		454
303	sub coro(&) {	455	sub async_ext(&) {
304	my $cb = shift;	456	my $cb = shift;
305		457
306	my $coro = &cf::async ($cb);	458	my $coro = &Coro::async ($cb);
307		459
308	$coro->on_destroy (sub {	460	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	461	delete $EXT_CORO{$coro+0};
310	});	462	});
311	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
312		464
313	$coro	465	$coro
314	}	466	}
315		467
316	sub write_runtime {	468	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		469
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
320	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.
321		474
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		476
326	aio_fsync $fh	477	sub _store_scalar {
327	and return;	478	open my $fh, ">", \my $buf
328		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
329	close $fh	481	close $fh;
330	or return;
331		482
332	aio_rename "$runtime~", $runtime	483	$buf
333	and return;	484	}
334		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;
335	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 => $type });
336	}	655	}
337		656
338	=back	657	=back
339		658
340	=cut	659	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		660
462	#############################################################################	661	#############################################################################
463		662
464	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
465		664
…		…
467	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")
468	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
469		668
470	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>
471	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
472	crossfire+).	671	Crossfire TRT).
473		672
474	=over 4	673	=over 4
475		674
476	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
477		676
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	791	our @CB_MAP = ();
593		792
594	my %attachment;	793	my %attachment;
595		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
596	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
598		803
599	use sort 'stable';	804	use sort 'stable';
600		805
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
635		840
636	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		845
641	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	847	my $pkg = shift @arg;
643		848
644	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
674	}	879	}
675		880
676	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
677	} else {	882	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	884	}
680		885
681	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
682	}	887	}
683		888
…		…
685	if (ref $_[0]) {	890	if (ref $_[0]) {
686	_object_attach @_;	891	_object_attach @_;
687	} else {	892	} else {
688	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
689	}	894	}
		895	_recalc_want;
690	};	896	};
691		897
692	# all those should be optimised	898	# all those should be optimised
693	sub cf::attachable::detach {	899	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
698	reattach ($obj);	904	reattach ($obj);
699	} else {	905	} else {
700	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
701	}	907	}
		908	_recalc_want;
702	};	909	};
703		910
704	sub cf::attachable::attached {	911	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
706		913
…		…
721	";	928	";
722	die if $@;	929	die if $@;
723	}	930	}
724		931
725	our $override;	932	our $override;
726	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?
727		934
728	sub override {	935	sub override {
729	$override = 1;	936	$override = 1;
730	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
731	}	938	}
732		939
733	sub do_invoke {	940	sub do_invoke {
734	my $event = shift;	941	my $event = shift;
735	my $callbacks = shift;	942	my $callbacks = shift;
736		943
737	@invoke_results = ();	944	@INVOKE_RESULTS = ();
738		945
739	local $override;	946	local $override;
740		947
741	for (@$callbacks) {	948	for (@$callbacks) {
742	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
759		966
760	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
761		968
762	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
763	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
764	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		972
766	=back	973	=back
767		974
768	=cut	975	=cut
769		976
770	#############################################################################	977	#############################################################################
771	# 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	}
772		990
773	sub reattach {	991	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		996
777	my $registry = $obj->registry;	997	my $registry = $obj->registry;
778		998
779	@$registry = ();	999	@$registry = ();
780		1000
…		…
827	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
828		1048
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1053	close $fh;
834		1054
835	if (@$objs) {	1055	if (@$objs) {
836	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) {
837	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1061	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
843	}	1063	}
844	} else {	1064	} else {
845	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
877	or return;	1097	or return;
878	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
879	}	1099	}
880		1100
881	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
883	return ($data, $av);	1103	return ($data, $av);
884	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
885		1111
886	#############################################################################	1112	#############################################################################
887	# command handling &c	1113	# command handling &c
888		1114
889	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1129	}
904		1130
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1132
907	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.
908		1138
909	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
910	called.	1140	called.
911		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
912	=cut	1153	=cut
913		1154
914	sub register_extcmd {	1155	sub register_extcmd {
915	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
916		1157
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
921	}	1165	}
922		1166
923	cf::player->attach (	1167	cf::player->attach (
924	on_command => sub {	1168	on_command => sub {
925	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1178	cf::override;
935	},	1179	},
936	on_extcmd => sub {	1180	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
938		1182
939	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1184
941	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
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
944	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
945	}	1195	if $reply;
946	}	1196	}
947	} else {	1197	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1199	}
950		1200
951	cf::override;	1201	cf::override;
952	},	1202	},
953	);	1203	);
954		1204
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
		1209	for my $path (<$LIBDIR/*.ext>) {
		1210	next unless -r $path;
		1211
		1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
		1269	}
		1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
		1275	};
		1276	}
		1277
		1278	#############################################################################
		1279
		1280	=back
		1281
		1282	=head2 CORE EXTENSIONS
		1283
		1284	Functions and methods that extend core crossfire objects.
		1285
		1286	=cut
		1287
		1288	package cf::player;
		1289
		1290	use Coro::AIO;
		1291
		1292	=head3 cf::player
		1293
		1294	=over 4
		1295
		1296	=item cf::player::find $login
		1297
		1298	Returns the given player object, loading it if necessary (might block).
		1299
		1300	=cut
		1301
		1302	sub playerdir($) {
		1303	"$PLAYERDIR/"
		1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1305	}
		1306
		1307	sub path($) {
		1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1309
		1310	(playerdir $login) . "/playerdata"
		1311	}
		1312
		1313	sub find_active($) {
		1314	$cf::PLAYER{$_[0]}
		1315	and $cf::PLAYER{$_[0]}->active
		1316	and $cf::PLAYER{$_[0]}
		1317	}
		1318
		1319	sub exists($) {
		1320	my ($login) = @_;
		1321
		1322	$cf::PLAYER{$login}
		1323	or cf::sync_job { !aio_stat path $login }
		1324	}
		1325
		1326	sub find($) {
		1327	return $cf::PLAYER{$_[0]} || do {
		1328	my $login = $_[0];
		1329
		1330	my $guard = cf::lock_acquire "user_find:$login";
		1331
		1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
		1340	my $pl = load_pl path $login
		1341	or return;
		1342	$cf::PLAYER{$login} = $pl
		1343	}
		1344	}
		1345	}
		1346
		1347	sub save($) {
		1348	my ($pl) = @_;
		1349
		1350	return if $pl->{deny_save};
		1351
		1352	my $path = path $pl;
		1353	my $guard = cf::lock_acquire "user_save:$path";
		1354
		1355	return if $pl->{deny_save};
		1356
		1357	aio_mkdir playerdir $pl, 0770;
		1358	$pl->{last_save} = $cf::RUNTIME;
		1359
		1360	$pl->save_pl ($path);
		1361	Coro::cede;
		1362	}
		1363
		1364	sub new($) {
		1365	my ($login) = @_;
		1366
		1367	my $self = create;
		1368
		1369	$self->ob->name ($login);
		1370	$self->{deny_save} = 1;
		1371
		1372	$cf::PLAYER{$login} = $self;
		1373
		1374	$self
		1375	}
		1376
		1377	=item $pl->quit_character
		1378
		1379	Nukes the player without looking back. If logged in, the connection will
		1380	be destroyed. May block for a long time.
		1381
		1382	=cut
		1383
		1384	sub quit_character {
		1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
		1388
		1389	$pl->{deny_save} = 1;
		1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1391
		1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1393	$pl->deactivate;
		1394	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1395	$pl->ns->destroy if $pl->ns;
		1396
		1397	my $path = playerdir $pl;
		1398	my $temp = "$path~$cf::RUNTIME~deleting~";
		1399	aio_rename $path, $temp;
		1400	delete $cf::PLAYER{$pl->ob->name};
		1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
		1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
		1423	}
		1424
		1425	=item cf::player::list_logins
		1426
		1427	Returns am arrayref of all valid playernames in the system, can take a
		1428	while and may block, so not sync_job-capable, ever.
		1429
		1430	=cut
		1431
		1432	sub list_logins {
		1433	my $dirs = aio_readdir $PLAYERDIR
		1434	or return [];
		1435
		1436	my @logins;
		1437
		1438	for my $login (@$dirs) {
		1439	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1440	aio_read $fh, 0, 512, my $buf, 0 or next;
		1441	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1442
		1443	utf8::decode $login;
		1444	push @logins, $login;
		1445	}
		1446
		1447	\@logins
		1448	}
		1449
		1450	=item $player->maps
		1451
		1452	Returns an arrayref of map paths that are private for this
		1453	player. May block.
		1454
		1455	=cut
		1456
		1457	sub maps($) {
		1458	my ($pl) = @_;
		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
		1461
		1462	my $files = aio_readdir playerdir $pl
		1463	or return;
		1464
		1465	my @paths;
		1466
		1467	for (@$files) {
		1468	utf8::decode $_;
		1469	next if /\.(?:pl|pst)$/;
		1470	next unless /^$PATH_SEP/o;
		1471
		1472	push @paths, cf::map::normalise "~$pl/$_";
		1473	}
		1474
		1475	\@paths
		1476	}
		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
		1528	=item $player->ext_reply ($msgid, @msg)
		1529
		1530	Sends an ext reply to the player.
		1531
		1532	=cut
		1533
		1534	sub ext_reply($$@) {
		1535	my ($self, $id, @msg) = @_;
		1536
		1537	if ($self->ns->extcmd == 2) {
		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
		1544	}
		1545
		1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
962	my ($path) = @_;	1573	my ($path) = @_;
963		1574
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1575	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1576
970	warn "loading '$path' into '$pkg'\n";	1577	for my $region (list) {
971		1578	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1579	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1580	if $region->specificity > $specificity;
974		1581	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1582	}
1004		1583
1005	# remove commands	1584	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1585	}
1111		1586
1112	=back	1587	=back
1113
1114		1588
1115	=head3 cf::map	1589	=head3 cf::map
1116		1590
1117	=over 4	1591	=over 4
1118		1592
…		…
1121	package cf::map;	1595	package cf::map;
1122		1596
1123	use Fcntl;	1597	use Fcntl;
1124	use Coro::AIO;	1598	use Coro::AIO;
1125		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
1126	our $MAX_RESET = 3600;	1604	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1605	our $DEFAULT_RESET = 3000;
1128		1606
1129	sub generate_random_map {	1607	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1608	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1609	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1610	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1614	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1615	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1616	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1617	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1618	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1619	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1621	(cf::region::find $rmp->{region}), $rmp->{custom}
		1622	)
		1623	}
		1624
		1625	=item cf::map->register ($regex, $prio)
		1626
		1627	Register a handler for the map path matching the given regex at the
		1628	givne priority (higher is better, built-in handlers have priority 0, the
		1629	default).
		1630
		1631	=cut
		1632
		1633	sub register {
		1634	my (undef, $regex, $prio) = @_;
		1635	my $pkg = caller;
		1636
		1637	no strict;
		1638	push @{"$pkg\::ISA"}, __PACKAGE__;
		1639
		1640	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1641	}
		1642
		1643	# also paths starting with '/'
		1644	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1645
		1646	sub thawer_merge {
		1647	my ($self, $merge) = @_;
		1648
		1649	# we have to keep some variables in memory intact
		1650	local $self->{path};
		1651	local $self->{load_path};
		1652
		1653	$self->SUPER::thawer_merge ($merge);
		1654	}
		1655
		1656	sub normalise {
		1657	my ($path, $base) = @_;
		1658
		1659	$path = "$path"; # make sure its a string
		1660
		1661	$path =~ s/\.map$//;
		1662
		1663	# map plan:
		1664	#
		1665	# /! non-realised random map exit (special hack!)
		1666	# {... are special paths that are not being touched
		1667	# ?xxx/... are special absolute paths
		1668	# ?random/... random maps
		1669	# /... normal maps
		1670	# ~user/... per-player map of a specific user
		1671
		1672	$path =~ s/$PATH_SEP/\//go;
		1673
		1674	# treat it as relative path if it starts with
		1675	# something that looks reasonable
		1676	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1677	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1678
		1679	$base =~ s{[^/]+/?$}{};
		1680	$path = "$base/$path";
		1681	}
		1682
		1683	for ($path) {
		1684	redo if s{//}{/};
		1685	redo if s{/\.?/}{/};
		1686	redo if s{/[^/]+/\.\./}{/};
		1687	}
		1688
		1689	$path
		1690	}
		1691
		1692	sub new_from_path {
		1693	my (undef, $path, $base) = @_;
		1694
		1695	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1696
		1697	$path = normalise $path, $base;
		1698
		1699	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1700	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1701	my $self = bless cf::map::new, $pkg;
		1702	$self->{path} = $path; $self->path ($path);
		1703	$self->init; # pass $1 etc.
		1704	return $self;
		1705	}
		1706	}
		1707
		1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1709	()
		1710	}
		1711
		1712	sub init {
		1713	my ($self) = @_;
		1714
		1715	$self
		1716	}
		1717
		1718	sub as_string {
		1719	my ($self) = @_;
		1720
		1721	"$self->{path}"
		1722	}
		1723
		1724	# the displayed name, this is a one way mapping
		1725	sub visible_name {
		1726	&as_string
		1727	}
		1728
		1729	# the original (read-only) location
		1730	sub load_path {
		1731	my ($self) = @_;
		1732
		1733	"$MAPDIR/$self->{path}.map"
		1734	}
		1735
		1736	# the temporary/swap location
		1737	sub save_path {
		1738	my ($self) = @_;
		1739
		1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1741	"$TMPDIR/$path.map"
		1742	}
		1743
		1744	# the unique path, undef == no special unique path
		1745	sub uniq_path {
		1746	my ($self) = @_;
		1747
		1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1749	"$UNIQUEDIR/$path"
1146	}	1750	}
1147		1751
1148	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1149	# all maps in C++...	1753	# all maps in C++...
1150	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1152		1756
1153	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1155	}	1759	}
1156		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
		1769	sub unlink_save {
		1770	my ($self) = @_;
		1771
		1772	utf8::encode (my $save = $self->save_path);
		1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1775	}
		1776
1157	sub try_load_header($) {	1777	sub load_header_from($) {
1158	my ($path) = @_;	1778	my ($self, $path) = @_;
1159		1779
1160	utf8::encode $path;	1780	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
1162	or return;	1785	or return;
1163		1786
1164	my $map = cf::map::new	1787	$self->{load_path} = $path;
		1788
		1789	1
		1790	}
		1791
		1792	sub load_header_orig {
		1793	my ($self) = @_;
		1794
		1795	$self->load_header_from ($self->load_path)
		1796	}
		1797
		1798	sub load_header_temp {
		1799	my ($self) = @_;
		1800
		1801	$self->load_header_from ($self->save_path)
		1802	}
		1803
		1804	sub prepare_temp {
		1805	my ($self) = @_;
		1806
		1807	$self->last_access ((delete $self->{last_access})
		1808	|| $cf::RUNTIME); #d#
		1809	# safety
		1810	$self->{instantiate_time} = $cf::RUNTIME
		1811	if $self->{instantiate_time} > $cf::RUNTIME;
		1812	}
		1813
		1814	sub prepare_orig {
		1815	my ($self) = @_;
		1816
		1817	$self->{load_original} = 1;
		1818	$self->{instantiate_time} = $cf::RUNTIME;
		1819	$self->last_access ($cf::RUNTIME);
		1820	$self->instantiate;
		1821	}
		1822
		1823	sub load_header {
		1824	my ($self) = @_;
		1825
		1826	if ($self->load_header_temp) {
		1827	$self->prepare_temp;
		1828	} else {
		1829	$self->load_header_orig
1165	or return;	1830	or return;
		1831	$self->prepare_orig;
		1832	}
1166		1833
1167	# for better error messages only, will be overwritten	1834	$self->{deny_reset} = 1
1168	$map->path ($path);	1835	if $self->no_reset;
1169		1836
1170	$map->load_header ($path)	1837	$self->default_region (cf::region::find_by_path $self->{path})
1171	or return;	1838	unless $self->default_region;
1172		1839
1173	$map->{load_path} = $path;	1840	1
1174
1175	$map
1176	}	1841	}
1177		1842
1178	sub find;	1843	sub find;
1179	sub find {	1844	sub find {
1180	my ($path, $origin) = @_;	1845	my ($path, $origin) = @_;
1181		1846
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1847	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1848
1187	cf::lock_wait "map_find:$key";	1849	cf::lock_wait "map_find:$path";
1188		1850
1189	$cf::MAP{$key} || do {	1851	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1852	my $guard = cf::lock_acquire "map_find:$path";
1191		1853	my $map = new_from_path cf::map $path
1192	# do it the slow way
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1854	or return;
1211		1855
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1224		1857
1225	Coro::cede;	1858	$map->load_header
		1859	or return;
1226		1860
1227	if ($map->should_reset) {	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1862	# doing this can freeze the server in a sync job, obviously
		1863	#$cf::WAIT_FOR_TICK->wait;
1228	$map->reset;	1864	$map->reset;
1229	undef $guard;	1865	undef $guard;
1230	$map = find $path	1866	return find $path;
1231	or return;
1232	}	1867	}
1233		1868
1234	$cf::MAP{$key} = $map	1869	$cf::MAP{$path} = $map
1235	}	1870	}
1236	}	1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
1237		1875
1238	sub load {	1876	sub load {
1239	my ($self) = @_;	1877	my ($self) = @_;
1240		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
1241	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1884	my $guard = cf::lock_acquire "map_load:$path";
1243		1885
1244	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1245		1887
1246	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1247		1889
1248	$self->alloc;	1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
1249	$self->load_objects ($self->{load_path}, 1)	1895	$self->_load_objects ($self->{load_path}, 1)
1250	or return;	1896	or return;
1251		1897
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	1899	if delete $self->{load_original};
1254		1900
1255	if (my $uniq = $path->uniq_path) {	1901	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	1902	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	1903	if (aio_open $uniq, O_RDONLY, 0) {
1258	$self->clear_unique_items;	1904	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	1905	$self->_load_objects ($uniq, 0);
1260	}	1906	}
1261	}	1907	}
1262		1908
1263	Coro::cede;	1909	Coro::cede;
1264
1265	# now do the right thing for maps	1910	# now do the right thing for maps
1266	$self->link_multipart_objects;	1911	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	1913	unless $self->difficulty;
		1914	Coro::cede;
		1915
		1916	unless ($self->{deny_activate}) {
		1917	$self->decay_objects;
		1918	$self->fix_auto_apply;
		1919	$self->update_buttons;
		1920	Coro::cede;
		1921	$self->set_darkness_map;
		1922	Coro::cede;
1278	$self->activate;	1923	$self->activate;
1279	}	1924	}
1280		1925
1281	Coro::cede;
1282
1283	$self->in_memory (cf::MAP_IN_MEMORY);	1926	$self->in_memory (cf::MAP_IN_MEMORY);
		1927	}
		1928
		1929	$self->post_load;
		1930	}
		1931
		1932	sub customise_for {
		1933	my ($self, $ob) = @_;
		1934
		1935	return find "~" . $ob->name . "/" . $self->{path}
		1936	if $self->per_player;
		1937
		1938	# return find "?party/" . $ob->name . "/" . $self->{path}
		1939	# if $self->per_party;
		1940
		1941	$self
		1942	}
		1943
		1944	# find and load all maps in the 3x3 area around a map
		1945	sub load_diag {
		1946	my ($map) = @_;
		1947
		1948	my @diag; # diagonal neighbours
		1949
		1950	for (0 .. 3) {
		1951	my $neigh = $map->tile_path ($_)
		1952	or next;
		1953	$neigh = find $neigh, $map
		1954	or next;
		1955	$neigh->load;
		1956
		1957	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1958	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1959	}
		1960
		1961	for (@diag) {
		1962	my $neigh = find @$_
		1963	or next;
		1964	$neigh->load;
		1965	}
1284	}	1966	}
1285		1967
1286	sub find_sync {	1968	sub find_sync {
1287	my ($path, $origin) = @_;	1969	my ($path, $origin) = @_;
1288		1970
1289	cf::sync_job { cf::map::find $path, $origin }	1971	cf::sync_job { find $path, $origin }
1290	}	1972	}
1291		1973
1292	sub do_load_sync {	1974	sub do_load_sync {
1293	my ($map) = @_;	1975	my ($map) = @_;
1294		1976
1295	cf::sync_job { $map->load };	1977	cf::sync_job { $map->load };
1296	}	1978	}
1297		1979
		1980	our %MAP_PREFETCH;
		1981	our $MAP_PREFETCHER = undef;
		1982
		1983	sub find_async {
		1984	my ($path, $origin) = @_;
		1985
		1986	$path = normalise $path, $origin && $origin->{path};
		1987
		1988	if (my $map = $cf::MAP{$path}) {
		1989	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1990	}
		1991
		1992	undef $MAP_PREFETCH{$path};
		1993	$MAP_PREFETCHER ||= cf::async {
		1994	while (%MAP_PREFETCH) {
		1995	for my $path (keys %MAP_PREFETCH) {
		1996	if (my $map = find $path) {
		1997	$map->load;
		1998	}
		1999
		2000	delete $MAP_PREFETCH{$path};
		2001	}
		2002	}
		2003	undef $MAP_PREFETCHER;
		2004	};
		2005	$MAP_PREFETCHER->prio (6);
		2006
		2007	()
		2008	}
		2009
1298	sub save {	2010	sub save {
1299	my ($self) = @_;	2011	my ($self) = @_;
1300		2012
		2013	my $lock = cf::lock_acquire "map_data:" . $self->path;
		2014
1301	$self->{last_save} = $cf::RUNTIME;	2015	$self->{last_save} = $cf::RUNTIME;
1302		2016
1303	return unless $self->dirty;	2017	return unless $self->dirty;
1304		2018
1305	my $save = $self->{path}->save_path; utf8::encode $save;	2019	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2020	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		2021
1308	$self->{load_path} = $save;	2022	$self->{load_path} = $save;
1309		2023
1310	return if $self->{deny_save};	2024	return if $self->{deny_save};
1311		2025
1312	local $self->{last_access} = $self->last_access;#d#	2026	local $self->{last_access} = $self->last_access;#d#
1313		2027
		2028	cf::async {
		2029	$_->contr->save for $self->players;
		2030	};
		2031
1314	if ($uniq) {	2032	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2033	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	2034	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	2035	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	2037	}
1320	}	2038	}
1321		2039
1322	sub swap_out {	2040	sub swap_out {
1323	my ($self) = @_;	2041	my ($self) = @_;
1324		2042
1325	# save first because save cedes	2043	# save first because save cedes
1326	$self->save;	2044	$self->save;
		2045
		2046	my $lock = cf::lock_acquire "map_data:" . $self->path;
1327		2047
1328	return if $self->players;	2048	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2049	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	2050	return if $self->{deny_save};
1331		2051
…		…
1335		2055
1336	sub reset_at {	2056	sub reset_at {
1337	my ($self) = @_;	2057	my ($self) = @_;
1338		2058
1339	# TODO: safety, remove and allow resettable per-player maps	2059	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2060	return 1e99 if $self->{deny_reset};
1342		2061
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2062	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2063	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2064
…		…
1350	my ($self) = @_;	2069	my ($self) = @_;
1351		2070
1352	$self->reset_at <= $cf::RUNTIME	2071	$self->reset_at <= $cf::RUNTIME
1353	}	2072	}
1354		2073
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2074	sub reset {
1377	my ($self) = @_;	2075	my ($self) = @_;
1378		2076
		2077	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2078
1379	return if $self->players;	2079	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2080
1382	warn "resetting map ", $self->path;#d#	2081	warn "resetting map ", $self->path;
		2082
		2083	$self->in_memory (cf::MAP_SWAPPED);
		2084
		2085	# need to save uniques path
		2086	unless ($self->{deny_save}) {
		2087	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2088
		2089	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2090	if $uniq;
		2091	}
1383		2092
1384	delete $cf::MAP{$self->path};	2093	delete $cf::MAP{$self->path};
		2094
		2095	$self->clear;
1385		2096
1386	$_->clear_links_to ($self) for values %cf::MAP;	2097	$_->clear_links_to ($self) for values %cf::MAP;
1387		2098
1388	$self->unlink_save;	2099	$self->unlink_save;
1389	$self->destroy;	2100	$self->destroy;
…		…
1392	my $nuke_counter = "aaaa";	2103	my $nuke_counter = "aaaa";
1393		2104
1394	sub nuke {	2105	sub nuke {
1395	my ($self) = @_;	2106	my ($self) = @_;
1396		2107
		2108	delete $cf::MAP{$self->path};
		2109
		2110	$self->unlink_save;
		2111
		2112	bless $self, "cf::map";
		2113	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2114	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2115	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2116	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2117
		2118	$cf::MAP{$self->path} = $self;
		2119
1400	$self->reset; # polite request, might not happen	2120	$self->reset; # polite request, might not happen
1401	}	2121	}
1402		2122
1403	sub customise_for {	2123	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2124
1406	if ($map->per_player) {	2125	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2126	maps. May block.
		2127
		2128	=cut
		2129
		2130	sub tmp_maps() {
1408	}	2131	[
1409		2132	map {
1410	$map	2133	utf8::decode $_;
		2134	/\.map$/
		2135	? normalise $_
		2136	: ()
		2137	} @{ aio_readdir $TMPDIR or [] }
		2138	]
1411	}	2139	}
1412		2140
1413	sub emergency_save {	2141	=item $maps = cf::map::random_maps
1414	my $freeze_guard = cf::freeze_mainloop;
1415		2142
1416	warn "enter emergency map save\n";	2143	Returns an arrayref with all map paths of currently instantiated and saved
		2144	random maps. May block.
1417		2145
1418	cf::sync_job {	2146	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2147
1423	warn "end emergency map save\n";	2148	sub random_maps() {
		2149	[
		2150	map {
		2151	utf8::decode $_;
		2152	/\.map$/
		2153	? normalise "?random/$_"
		2154	: ()
		2155	} @{ aio_readdir $RANDOMDIR or [] }
		2156	]
		2157	}
		2158
		2159	=item cf::map::unique_maps
		2160
		2161	Returns an arrayref of paths of all shared maps that have
		2162	instantiated unique items. May block.
		2163
		2164	=cut
		2165
		2166	sub unique_maps() {
		2167	[
		2168	map {
		2169	utf8::decode $_;
		2170	/\.map$/
		2171	? normalise $_
		2172	: ()
		2173	} @{ aio_readdir $UNIQUEDIR or [] }
		2174	]
1424	}	2175	}
1425		2176
1426	package cf;	2177	package cf;
1427		2178
1428	=back	2179	=back
1429		2180
		2181	=head3 cf::object
		2182
		2183	=cut
		2184
		2185	package cf::object;
		2186
		2187	=over 4
		2188
		2189	=item $ob->inv_recursive
		2190
		2191	Returns the inventory of the object _and_ their inventories, recursively.
		2192
		2193	=cut
		2194
		2195	sub inv_recursive_;
		2196	sub inv_recursive_ {
		2197	map { $_, inv_recursive_ $_->inv } @_
		2198	}
		2199
		2200	sub inv_recursive {
		2201	inv_recursive_ inv $_[0]
		2202	}
		2203
		2204	package cf;
		2205
		2206	=back
1430		2207
1431	=head3 cf::object::player	2208	=head3 cf::object::player
1432		2209
1433	=over 4	2210	=over 4
1434		2211
…		…
1448		2225
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2226	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2227
1451	if ($self->{record_replies}) {	2228	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2229	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2230
1453	} else {	2231	} else {
		2232	my $pl = $self->contr;
		2233
		2234	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2235	my $dialog = $pl->{npc_dialog};
		2236	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2237
		2238	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2239	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2240	$self->message ($msg, $flags);
		2241	}
1456	}	2242	}
1457	}	2243	}
1458		2244
1459	=item $player_object->may ("access")	2245	=item $player_object->may ("access")
1460		2246
…		…
1474		2260
1475	=item $player_object->enter_link	2261	=item $player_object->enter_link
1476		2262
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2263	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2264
1479	The player should be reaosnably safe there for short amounts of time. You	2265	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	2266	I<MUST> call C<leave_link> as soon as possible, though.
1481		2267
		2268	Will never block.
		2269
1482	=item $player_object->leave_link ($map, $x, $y)	2270	=item $player_object->leave_link ($map, $x, $y)
1483		2271
1484	Moves the player out of the specila link map onto the given map. If the	2272	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2273	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2274	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2275	fails, to the emergency map position.
1488		2276
1489	Might block.	2277	Might block.
1490		2278
1491	=cut	2279	=cut
		2280
		2281	sub link_map {
		2282	unless ($LINK_MAP) {
		2283	$LINK_MAP = cf::map::find "{link}"
		2284	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2285	$LINK_MAP->load;
		2286	}
		2287
		2288	$LINK_MAP
		2289	}
1492		2290
1493	sub cf::object::player::enter_link {	2291	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2292	my ($self) = @_;
1495		2293
1496	$self->deactivate_recursive;	2294	$self->deactivate_recursive;
1497		2295
1498	return if $self->map == $LINK_MAP;	2296	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2297
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2298	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2299	if $self->map && $self->map->{path} ne "{link}";
1502		2300
1503	$self->enter_map ($LINK_MAP, 20, 20);	2301	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2302	}
1505		2303
1506	sub cf::object::player::leave_link {	2304	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2305	my ($self, $map, $x, $y) = @_;
		2306
		2307	return unless $self->contr->active;
1508		2308
1509	my $link_pos = delete $self->{_link_pos};	2309	my $link_pos = delete $self->{_link_pos};
1510		2310
1511	unless ($map) {	2311	unless ($map) {
1512	# restore original map position	2312	# restore original map position
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2326	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2327	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2328	if $x <=0 && $y <= 0;
1529		2329
1530	$map->load;	2330	$map->load;
		2331	$map->load_diag;
1531		2332
		2333	return unless $self->contr->active;
1532	$self->activate_recursive;	2334	$self->activate_recursive;
		2335
		2336	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2337	$self->enter_map ($map, $x, $y);
1534	}	2338	}
1535		2339
1536	cf::player->attach (	2340	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1537	on_logout => sub {
1538	my ($pl) = @_;
1539		2341
1540	# abort map switching before logout	2342	Moves the player to the given map-path and coordinates by first freezing
1541	if ($pl->ob->{_link_pos}) {	2343	her, loading and preparing them map, calling the provided $check callback
1542	cf::sync_job {	2344	that has to return the map if sucecssful, and then unfreezes the player on
1543	$pl->ob->leave_link	2345	the new (success) or old (failed) map position. In either case, $done will
1544	};	2346	be called at the end of this process.
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2347
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto ($path, $x, $y)
1565
1566	=cut	2348	=cut
		2349
		2350	our $GOTOGEN;
1567		2351
1568	sub cf::object::player::goto {	2352	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2353	my ($self, $path, $x, $y, $check, $done) = @_;
		2354
		2355	# do generation counting so two concurrent goto's will be executed in-order
		2356	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2357
1571	$self->enter_link;	2358	$self->enter_link;
1572		2359
1573	(cf::async {	2360	(async {
1574	$path = new cf::path $path;	2361	my $map = eval {
1575
1576	my $map = cf::map::find $path->as_string;	2362	my $map = cf::map::find $path;
		2363
		2364	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2365	$map = $map->customise_for ($self);
1578		2366	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2367	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2368	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2369	}
1583		2370
		2371	$map
		2372	};
		2373
		2374	if ($@) {
		2375	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2376	LOG llevError | logBacktrace, Carp::longmess $@;
		2377	}
		2378
		2379	if ($gen == $self->{_goto_generation}) {
		2380	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2381	$self->leave_link ($map, $x, $y);
		2382	}
		2383
		2384	$done->() if $done;
1585	})->prio (1);	2385	})->prio (1);
1586	}	2386	}
1587		2387
1588	=item $player_object->enter_exit ($exit_object)	2388	=item $player_object->enter_exit ($exit_object)
1589		2389
…		…
1591		2391
1592	sub parse_random_map_params {	2392	sub parse_random_map_params {
1593	my ($spec) = @_;	2393	my ($spec) = @_;
1594		2394
1595	my $rmp = { # defaults	2395	my $rmp = { # defaults
1596	xsize => 10,	2396	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2397	ysize => (cf::rndm 15, 40),
		2398	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2399	#layout => string,
1598	};	2400	};
1599		2401
1600	for (split /\n/, $spec) {	2402	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2403	my ($k, $v) = split /\s+/, $_, 2;
1602		2404
…		…
1606	$rmp	2408	$rmp
1607	}	2409	}
1608		2410
1609	sub prepare_random_map {	2411	sub prepare_random_map {
1610	my ($exit) = @_;	2412	my ($exit) = @_;
		2413
		2414	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2415
1612	# all this does is basically replace the /! path by	2416	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2417	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2418	# that depends on the exit object
1615		2419
1616	my $rmp = parse_random_map_params $exit->msg;	2420	my $rmp = parse_random_map_params $exit->msg;
1617		2421
1618	if ($exit->map) {	2422	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2423	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2424	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2425	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2426	$rmp->{origin_y} = $exit->y;
1623	}	2427	}
1624		2428
1625	$rmp->{random_seed} ||= $exit->random_seed;	2429	$rmp->{random_seed} ||= $exit->random_seed;
1626		2430
1627	my $data = cf::to_json $rmp;	2431	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2432	my $md5 = Digest::MD5::md5_hex $data;
		2433	my $meta = "$RANDOMDIR/$md5.meta";
1629		2434
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2435	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2436	aio_write $fh, 0, (length $data), $data, 0;
		2437	undef $fh;
		2438	aio_rename "$meta~", $meta;
1632		2439
1633	$exit->slaying ("?random/$md5");	2440	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2441	$exit->msg (undef);
1635	}	2442	}
1636	}	2443	}
…		…
1638	sub cf::object::player::enter_exit {	2445	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2446	my ($self, $exit) = @_;
1640		2447
1641	return unless $self->type == cf::PLAYER;	2448	return unless $self->type == cf::PLAYER;
1642		2449
		2450	if ($exit->slaying eq "/!") {
		2451	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2452	# the problem is that $exit might not survive long enough
		2453	# so it needs to be done right now, right here
		2454	cf::sync_job { prepare_random_map $exit };
		2455	}
		2456
		2457	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2458	my $hp = $exit->stats->hp;
		2459	my $sp = $exit->stats->sp;
		2460
1643	$self->enter_link;	2461	$self->enter_link;
1644		2462
		2463	# if exit is damned, update players death & WoR home-position
		2464	$self->contr->savebed ($slaying, $hp, $sp)
		2465	if $exit->flag (FLAG_DAMNED);
		2466
1645	(cf::async {	2467	(async {
1646	$self->deactivate_recursive; # just to be sure	2468	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2469	unless (eval {
1648	prepare_random_map $exit	2470	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653		2471
1654	1;	2472	1;
1655	}) {	2473	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2474	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2475	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2476	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2477	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2478
1661	warn "ERROR in enter_exit: $@";	2479	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2480	$self->leave_link;
1663	}	2481	}
1664	})->prio (1);	2482	})->prio (1);
…		…
1677		2495
1678	sub cf::client::send_drawinfo {	2496	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2497	my ($self, $text, $flags) = @_;
1680		2498
1681	utf8::encode $text;	2499	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2500	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2501	}
1684		2502
		2503	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2504
		2505	Send a drawinfo or msg packet to the client, formatting the msg for the
		2506	client if neccessary. C<$type> should be a string identifying the type of
		2507	the message, with C<log> being the default. If C<$color> is negative, suppress
		2508	the message unless the client supports the msg packet.
		2509
		2510	=cut
		2511
		2512	sub cf::client::send_msg {
		2513	my ($self, $channel, $msg, $color, @extra) = @_;
		2514
		2515	$msg = $self->pl->expand_cfpod ($msg);
		2516
		2517	$color &= ~cf::NDI_UNIQUE; # just in case...
		2518
		2519	if (ref $channel) {
		2520	# send meta info to client, if not yet sent
		2521	unless (exists $self->{channel}{$channel->{id}}) {
		2522	$self->{channel}{$channel->{id}} = $channel;
		2523	$self->ext_msg (channel_info => %$channel);
		2524	}
		2525
		2526	$channel = $channel->{id};
		2527	}
		2528
		2529	return unless @extra || length $msg;
		2530
		2531	if ($self->can_msg) {
		2532	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2533	} else {
		2534	# replace some tags by gcfclient-compatible ones
		2535	for ($msg) {
		2536	1 while
		2537	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2538	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2539	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2540	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2541	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2542	}
		2543
		2544	if ($color >= 0) {
		2545	if (0 && $msg =~ /\[/) {
		2546	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2547	} else {
		2548	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2549	$self->send_packet ("drawinfo $color $msg")
		2550	}
		2551	}
		2552	}
		2553	}
		2554
		2555	=item $client->ext_msg ($type, @msg)
		2556
		2557	Sends an ext event to the client.
		2558
		2559	=cut
		2560
		2561	sub cf::client::ext_msg($$@) {
		2562	my ($self, $type, @msg) = @_;
		2563
		2564	my $extcmd = $self->extcmd;
		2565
		2566	if ($extcmd == 2) {
		2567	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2568	} elsif ($extcmd == 1) { # TODO: remove
		2569	push @msg, msgtype => "event_$type";
		2570	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2571	}
		2572	}
1685		2573
1686	=item $success = $client->query ($flags, "text", \&cb)	2574	=item $success = $client->query ($flags, "text", \&cb)
1687		2575
1688	Queues a query to the client, calling the given callback with	2576	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2577	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2578	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2579
1692	Queries can fail, so check the return code. Or don't, as queries will become	2580	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2581	become reliable at some point in the future.
1694		2582
1695	=cut	2583	=cut
1696		2584
1697	sub cf::client::query {	2585	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2586	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2594	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2595	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2596
1709	$self->send_packet ($self->{query_queue}[0][0])	2597	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2598	if @{ $self->{query_queue} } == 1;
		2599
		2600	1
1711	}	2601	}
1712		2602
1713	cf::client->attach (	2603	cf::client->attach (
		2604	on_connect => sub {
		2605	my ($ns) = @_;
		2606
		2607	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2608	},
1714	on_reply => sub {	2609	on_reply => sub {
1715	my ($ns, $msg) = @_;	2610	my ($ns, $msg) = @_;
1716		2611
1717	# this weird shuffling is so that direct followup queries	2612	# this weird shuffling is so that direct followup queries
1718	# get handled first	2613	# get handled first
1719	my $queue = delete $ns->{query_queue}	2614	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2615	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2616
1722	(shift @$queue)->[1]->($msg);	2617	(shift @$queue)->[1]->($msg);
		2618	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2619
1724	push @{ $ns->{query_queue} }, @$queue;	2620	push @{ $ns->{query_queue} }, @$queue;
1725		2621
1726	if (@{ $ns->{query_queue} } == @$queue) {	2622	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2623	if (@$queue) {
…		…
1729	} else {	2625	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2626	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2627	}
1732	}	2628	}
1733	},	2629	},
		2630	on_exticmd => sub {
		2631	my ($ns, $buf) = @_;
		2632
		2633	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2634
		2635	if (ref $msg) {
		2636	my ($type, $reply, @payload) =
		2637	"ARRAY" eq ref $msg
		2638	? @$msg
		2639	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2640
		2641	if (my $cb = $EXTICMD{$type}) {
		2642	my @reply = $cb->($ns, @payload);
		2643
		2644	$ns->ext_reply ($reply, @reply)
		2645	if $reply;
		2646	}
		2647	} else {
		2648	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2649	}
		2650
		2651	cf::override;
		2652	},
1734	);	2653	);
1735		2654
1736	=item $client->coro (\&cb)	2655	=item $client->async (\&cb)
1737		2656
1738	Create a new coroutine, running the specified callback. The coroutine will	2657	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2658	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2659	or loss of connection).
1741		2660
1742	=cut	2661	=cut
1743		2662
1744	sub cf::client::coro {	2663	sub cf::client::async {
1745	my ($self, $cb) = @_;	2664	my ($self, $cb) = @_;
1746		2665
1747	my $coro = &cf::async ($cb);	2666	my $coro = &Coro::async ($cb);
1748		2667
1749	$coro->on_destroy (sub {	2668	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2669	delete $self->{_coro}{$coro+0};
1751	});	2670	});
1752		2671
…		…
1785		2704
1786	# here we export the classes and methods available to script code	2705	# here we export the classes and methods available to script code
1787		2706
1788	=pod	2707	=pod
1789		2708
1790	The following fucntions and emthods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
1791		2710
1792	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove
		2714
1793	cf::object::player player	2715	cf::object::player
1794	cf::player peaceful	2716	player
1795	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
1796		2723
1797	=cut	2724	=cut
1798		2725
1799	for (	2726	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove)],
1801	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
1804	) {	2732	) {
1805	no strict 'refs';	2733	no strict 'refs';
…		…
1876	=back	2804	=back
1877		2805
1878	=cut	2806	=cut
1879		2807
1880	#############################################################################	2808	#############################################################################
		2809	# the server's init and main functions
1881		2810
1882	=head2 EXTENSION DATABASE SUPPORT	2811	sub load_facedata($) {
		2812	my ($path) = @_;
1883		2813
1884	Crossfire maintains a very simple database for extension use. It can	2814	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2815
1888	The parameter C<$family> should best start with the name of the extension	2816	my $facedata;
1889	using it, it should be unique.	2817	0 < aio_load $path, $facedata
		2818	or die "$path: $!";
1890		2819
1891	=over 4	2820	$facedata = Coro::Storable::thaw $facedata;
1892		2821
1893	=item $hashref = cf::db_get $family	2822	$facedata->{version} == 2
		2823	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2824
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key
1900
1901	Returns a single value from the database
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}	2825	{
		2826	my $faces = $facedata->{faceinfo};
1931		2827
1932	my $pid;	2828	while (my ($face, $info) = each %$faces) {
		2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
		2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1933		2834
1934	sub db_save() {	2835	cf::cede_to_tick;
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2836	}
1980	);
1981	}
1982		2837
1983	#############################################################################	2838	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2839	next unless $info->{smooth};
		2840	my $idx = cf::face::find $face
		2841	or next;
		2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
		2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2845	} else {
		2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2847	}
		2848
		2849	cf::cede_to_tick;
		2850	}
		2851	}
		2852
		2853	{
		2854	my $anims = $facedata->{animinfo};
		2855
		2856	while (my ($anim, $info) = each %$anims) {
		2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2858	cf::cede_to_tick;
		2859	}
		2860
		2861	cf::anim::invalidate_all; # d'oh
		2862	}
		2863
		2864	{
		2865	# TODO: for gcfclient pleasure, we should give resources
		2866	# that gcfclient doesn't grok a >10000 face index.
		2867	my $res = $facedata->{resource};
		2868	my $enc = JSON::XS->new->utf8->canonical;
		2869
		2870	while (my ($name, $info) = each %$res) {
		2871	my $meta = $enc->encode ({
		2872	name => $name,
		2873	copyright => $info->{copyright}, #TODO#
		2874	});
		2875
		2876	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2877
		2878	if ($info->{type} & 1) {
		2879	# prepend meta info
		2880
		2881	my $data = pack "(w/a*)*", $meta, $info->{data};
		2882	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2883
		2884	cf::face::set_data $idx, 0, $data, $chk;
		2885	} else {
		2886	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2887	}
		2888
		2889	cf::face::set_type $idx, $info->{type};
		2890
		2891	cf::cede_to_tick;
		2892	}
		2893	}
		2894
		2895	1
		2896	}
		2897
		2898	register_exticmd fx_want => sub {
		2899	my ($ns, $want) = @_;
		2900
		2901	while (my ($k, $v) = each %$want) {
		2902	$ns->fx_want ($k, $v);
		2903	}
		2904	};
		2905
		2906	sub reload_regions {
		2907	load_resource_file "$MAPDIR/regions"
		2908	or die "unable to load regions file\n";
		2909
		2910	for (cf::region::list) {
		2911	$_->{match} = qr/$_->{match}/
		2912	if exists $_->{match};
		2913	}
		2914	}
		2915
		2916	sub reload_facedata {
		2917	load_facedata "$DATADIR/facedata"
		2918	or die "unable to load facedata\n";
		2919	}
		2920
		2921	sub reload_archetypes {
		2922	load_resource_file "$DATADIR/archetypes"
		2923	or die "unable to load archetypes\n";
		2924	#d# NEED to laod twice to resolve forward references
		2925	# this really needs to be done in an extra post-pass
		2926	# (which needs to be synchronous, so solve it differently)
		2927	load_resource_file "$DATADIR/archetypes"
		2928	or die "unable to load archetypes\n";
		2929	}
		2930
		2931	sub reload_treasures {
		2932	load_resource_file "$DATADIR/treasures"
		2933	or die "unable to load treasurelists\n";
		2934	}
		2935
		2936	sub reload_resources {
		2937	warn "reloading resource files...\n";
		2938
		2939	reload_regions;
		2940	reload_facedata;
		2941	#reload_archetypes;#d#
		2942	reload_archetypes;
		2943	reload_treasures;
		2944
		2945	warn "finished reloading resource files\n";
		2946	}
		2947
		2948	sub init {
		2949	reload_resources;
		2950	}
1985		2951
1986	sub cfg_load {	2952	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2953	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2954	or return;
1989		2955
1990	local $/;	2956	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2957	*CFG = YAML::Syck::Load <$fh>;
1992		2958
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2959	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2960
		2961	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2962	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2963
1995	if (exists $CFG{mlockall}) {	2964	if (exists $CFG{mlockall}) {
1996	eval {	2965	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2966	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2967	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2968	};
2000	warn $@ if $@;	2969	warn $@ if $@;
2001	}	2970	}
2002	}	2971	}
2003		2972
2004	sub main {	2973	sub main {
2005	# we must not ever block the main coroutine	2974	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2975	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2976	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2977	(async {
2009	Event::one_event;	2978	Event::one_event;
2010	})->();	2979	})->prio (Coro::PRIO_MAX);
2011	};	2980	};
2012		2981
2013	cfg_load;	2982	cfg_load;
2014	db_load;	2983	db_init;
2015	load_extensions;	2984	load_extensions;
		2985
		2986	$TICK_WATCHER->start;
2016	Event::loop;	2987	Event::loop;
2017	}	2988	}
2018		2989
2019	#############################################################################	2990	#############################################################################
2020	# initialisation	2991	# initialisation and cleanup
2021		2992
		2993	# install some emergency cleanup handlers
		2994	BEGIN {
		2995	for my $signal (qw(INT HUP TERM)) {
		2996	Event->signal (
		2997	reentrant => 0,
		2998	data => WF_AUTOCANCEL,
		2999	signal => $signal,
		3000	prio => 0,
		3001	cb => sub {
		3002	cf::cleanup "SIG$signal";
		3003	},
		3004	);
		3005	}
		3006	}
		3007
		3008	sub write_runtime {
		3009	my $runtime = "$LOCALDIR/runtime";
		3010
		3011	# first touch the runtime file to show we are still running:
		3012	# the fsync below can take a very very long time.
		3013
		3014	IO::AIO::aio_utime $runtime, undef, undef;
		3015
		3016	my $guard = cf::lock_acquire "write_runtime";
		3017
		3018	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3019	or return;
		3020
		3021	my $value = $cf::RUNTIME + 90 + 10;
		3022	# 10 is the runtime save interval, for a monotonic clock
		3023	# 60 allows for the watchdog to kill the server.
		3024
		3025	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3026	and return;
		3027
		3028	# always fsync - this file is important
		3029	aio_fsync $fh
		3030	and return;
		3031
		3032	# touch it again to show we are up-to-date
		3033	aio_utime $fh, undef, undef;
		3034
		3035	close $fh
		3036	or return;
		3037
		3038	aio_rename "$runtime~", $runtime
		3039	and return;
		3040
		3041	warn "runtime file written.\n";
		3042
		3043	1
		3044	}
		3045
		3046	sub emergency_save() {
		3047	my $freeze_guard = cf::freeze_mainloop;
		3048
		3049	warn "enter emergency perl save\n";
		3050
		3051	cf::sync_job {
		3052	# use a peculiar iteration method to avoid tripping on perl
		3053	# refcount bugs in for. also avoids problems with players
		3054	# and maps saved/destroyed asynchronously.
		3055	warn "begin emergency player save\n";
		3056	for my $login (keys %cf::PLAYER) {
		3057	my $pl = $cf::PLAYER{$login} or next;
		3058	$pl->valid or next;
		3059	$pl->save;
		3060	}
		3061	warn "end emergency player save\n";
		3062
		3063	warn "begin emergency map save\n";
		3064	for my $path (keys %cf::MAP) {
		3065	my $map = $cf::MAP{$path} or next;
		3066	$map->valid or next;
		3067	$map->save;
		3068	}
		3069	warn "end emergency map save\n";
		3070
		3071	warn "begin emergency database checkpoint\n";
		3072	BDB::db_env_txn_checkpoint $DB_ENV;
		3073	warn "end emergency database checkpoint\n";
		3074	};
		3075
		3076	warn "leave emergency perl save\n";
		3077	}
		3078
		3079	sub post_cleanup {
		3080	my ($make_core) = @_;
		3081
		3082	warn Carp::longmess "post_cleanup backtrace"
		3083	if $make_core;
		3084	}
		3085
2022	sub reload() {	3086	sub do_reload_perl() {
2023	# can/must only be called in main	3087	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3088	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3089	warn "can only reload from main coroutine";
2026	return;	3090	return;
2027	}	3091	}
2028		3092
2029	warn "reloading...";	3093	warn "reloading...";
2030		3094
2031	my $guard = freeze_mainloop;	3095	warn "entering sync_job";
		3096
		3097	cf::sync_job {
		3098	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	3099	cf::emergency_save;
		3100	cf::write_runtime; # external watchdog should not bark
2033		3101
2034	eval {	3102	warn "syncing database to disk";
		3103	BDB::db_env_txn_checkpoint $DB_ENV;
		3104
2035	# if anything goes wrong in here, we should simply crash as we already saved	3105	# if anything goes wrong in here, we should simply crash as we already saved
2036		3106
2037	# cancel all watchers	3107	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	3108	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3109	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	3110	}
2041		3111
		3112	warn "flushing outstanding aio requests";
		3113	for (;;) {
		3114	BDB::flush;
		3115	IO::AIO::flush;
		3116	Coro::cede;
		3117	last unless IO::AIO::nreqs || BDB::nreqs;
		3118	warn "iterate...";
		3119	}
		3120
		3121	++$RELOAD;
		3122
2042	# cancel all extension coros	3123	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3124	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3125	%EXT_CORO = ();
2045		3126
2046	# unload all extensions	3127	warn "removing commands";
2047	for (@exts) {	3128	%COMMAND = ();
		3129
		3130	warn "removing ext/exti commands";
		3131	%EXTCMD = ();
		3132	%EXTICMD = ();
		3133
		3134	warn "unloading/nuking all extensions";
		3135	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	3136	warn "... unloading $pkg";
2049	unload_extension $_;	3137
		3138	if (my $cb = $pkg->can ("unload")) {
		3139	eval {
		3140	$cb->($pkg);
		3141	1
		3142	} or warn "$pkg unloaded, but with errors: $@";
2050	}	3143	}
2051		3144
		3145	warn "... nuking $pkg";
		3146	Symbol::delete_package $pkg;
		3147	}
		3148
2052	# unload all modules loaded from $LIBDIR	3149	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	3150	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3151	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		3152
2056	warn "removing <$k>";	3153	warn "... unloading $k";
2057	delete $INC{$k};	3154	delete $INC{$k};
2058		3155
2059	$k =~ s/\.pm$//;	3156	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	3157	$k =~ s/\//::/g;
2061		3158
…		…
2064	}	3161	}
2065		3162
2066	Symbol::delete_package $k;	3163	Symbol::delete_package $k;
2067	}	3164	}
2068		3165
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3166	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3167	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3168	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3169
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3170	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3171	delete $INC{"cf.pm"};
		3172	delete $INC{"cf/pod.pm"};
2082		3173
2083	# don't, removes xs symbols, too,	3174	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3175	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3176	#Symbol::delete_package __PACKAGE__;
2086		3177
2087	# reload cf.pm	3178	warn "unload completed, starting to reload now";
		3179
2088	warn "reloading cf.pm";	3180	warn "reloading cf.pm";
2089	require cf;	3181	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3182	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3183
2092	# load config and database again	3184	warn "loading config and database again";
2093	cf::cfg_load;	3185	cf::cfg_load;
2094	cf::db_load;
2095		3186
2096	# load extensions
2097	warn "load extensions";	3187	warn "loading extensions";
2098	cf::load_extensions;	3188	cf::load_extensions;
2099		3189
2100	# reattach attachments to objects	3190	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3191	_global_reattach; # objects, sockets
2102	_global_reattach;	3192	warn "reattaching attachments to maps";
2103	};	3193	reattach $_ for values %MAP;
		3194	warn "reattaching attachments to players";
		3195	reattach $_ for values %PLAYER;
2104		3196
2105	if ($@) {	3197	warn "leaving sync_job";
		3198
		3199	1
		3200	} or do {
2106	warn $@;	3201	warn $@;
2107	warn "error while reloading, exiting.";	3202	warn "error while reloading, exiting.";
2108	exit 1;	3203	exit 1;
2109	}	3204	};
2110		3205
2111	warn "reloaded successfully";	3206	warn "reloaded";
2112	};	3207	};
2113		3208
2114	#############################################################################	3209	our $RELOAD_WATCHER; # used only during reload
2115		3210
2116	unless ($LINK_MAP) {	3211	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3212	# doing reload synchronously and two reloads happen back-to-back,
		3213	# coro crashes during coro_state_free->destroy here.
2118		3214
2119	$LINK_MAP->width (41);	3215	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3216	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	3217	after => 0,
		3218	data => WF_AUTOCANCEL,
2129	cb => sub {	3219	cb => sub {
2130	$_[0]->w->cancel;	3220	do_reload_perl;
2131		3221	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	3222	},
2150		3223	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3224	}
2156
2157	register "<global>", __PACKAGE__;
2158		3225
2159	register_command "reload" => sub {	3226	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3227	my ($who, $arg) = @_;
2161		3228
2162	if ($who->flag (FLAG_WIZ)) {	3229	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3230	$who->message ("reloading server.");
		3231	async { reload_perl };
2166	}	3232	}
2167	};	3233	};
2168		3234
2169	unshift @INC, $LIBDIR;	3235	unshift @INC, $LIBDIR;
2170		3236
		3237	my $bug_warning = 0;
		3238
		3239	our @WAIT_FOR_TICK;
		3240	our @WAIT_FOR_TICK_BEGIN;
		3241
		3242	sub wait_for_tick {
		3243	return unless $TICK_WATCHER->is_active;
		3244	return if $Coro::current == $Coro::main;
		3245
		3246	my $signal = new Coro::Signal;
		3247	push @WAIT_FOR_TICK, $signal;
		3248	$signal->wait;
		3249	}
		3250
		3251	sub wait_for_tick_begin {
		3252	return unless $TICK_WATCHER->is_active;
		3253	return if $Coro::current == $Coro::main;
		3254
		3255	my $signal = new Coro::Signal;
		3256	push @WAIT_FOR_TICK_BEGIN, $signal;
		3257	$signal->wait;
		3258	}
		3259
		3260	my $min = 1e6;#d#
		3261	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3262	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3263	reentrant => 0,
		3264	parked => 1,
2173	prio => 0,	3265	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3266	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3267	data => WF_AUTOCANCEL,
2176	cb => sub {	3268	cb => sub {
		3269	if ($Coro::current != $Coro::main) {
		3270	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3271	unless ++$bug_warning > 10;
		3272	return;
		3273	}
		3274
		3275	$NOW = $tick_start = Event::time;
		3276
2177	cf::server_tick; # one server iteration	3277	cf::server_tick; # one server iteration
		3278
		3279	0 && sync_job {#d#
		3280	for(1..10) {
		3281	my $t = Event::time;
		3282	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3283	or die;
		3284
		3285	$map->width (50);
		3286	$map->height (50);
		3287	$map->alloc;
		3288	$map->_load_objects ("/tmp/x.map", 1);
		3289	my $t = Event::time - $t;
		3290
		3291	#next unless $t < 0.0013;#d#
		3292	if ($t < $min) {
		3293	$min = $t;
		3294	}
		3295	$avg = $avg * 0.99 + $t * 0.01;
		3296	}
		3297	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3298	exit 0;
		3299	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3300	};
		3301
2178	$RUNTIME += $TICK;	3302	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	3303	$NEXT_TICK += $TICK;
2180		3304
		3305	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3306	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3307	Coro::async_pool {
		3308	write_runtime
		3309	or warn "ERROR: unable to write runtime file: $!";
		3310	};
		3311	}
		3312
		3313	# my $AFTER = Event::time;
		3314	# warn $AFTER - $NOW;#d#
		3315
		3316	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3317	$sig->send;
		3318	}
		3319	while (my $sig = shift @WAIT_FOR_TICK) {
		3320	$sig->send;
		3321	}
		3322
		3323	$NOW = Event::time;
		3324
2181	# if we are delayed by four ticks or more, skip them all	3325	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3326	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2183		3327
2184	$TICK_WATCHER->at ($NEXT_TICK);	3328	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	3329	$TICK_WATCHER->start;
		3330
		3331	$LOAD = ($NOW - $tick_start) / $TICK;
		3332	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3333
		3334	_post_tick;
		3335
		3336
2186	},	3337	},
2187	);	3338	);
2188		3339
		3340	{
2189	IO::AIO::max_poll_time $TICK * 0.2;	3341	BDB::max_poll_time $TICK * 0.1;
2190		3342	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	3343	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	3344	fd => BDB::poll_fileno,
2193	poll => 'r',	3345	poll => 'r',
2194	prio => 5,	3346	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	3347	data => WF_AUTOCANCEL,
2201	after => 0,	3348	cb => \&BDB::poll_cb,
2202	interval => 10,	3349	);
2203	cb => sub {	3350	BDB::min_parallel 8;
2204	(Coro::unblock_sub {	3351
2205	write_runtime	3352	BDB::set_sync_prepare {
2206	or warn "ERROR: unable to write runtime file: $!";	3353	my $status;
		3354	my $current = $Coro::current;
		3355	(
		3356	sub {
		3357	$status = $!;
		3358	$current->ready; undef $current;
		3359	},
		3360	sub {
		3361	Coro::schedule while defined $current;
		3362	$! = $status;
		3363	},
		3364	)
		3365	};
		3366
		3367	unless ($DB_ENV) {
		3368	$DB_ENV = BDB::db_env_create;
		3369
		3370	cf::sync_job {
		3371	eval {
		3372	BDB::db_env_open
		3373	$DB_ENV,
		3374	$BDBDIR,
		3375	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3376	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3377	0666;
		3378
		3379	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3380
		3381	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3382	$DB_ENV->set_lk_detect;
		3383	};
		3384
		3385	cf::cleanup "db_env_open(db): $@" if $@;
2207	})->();	3386	};
2208	},	3387	}
2209	);	3388	}
		3389
		3390	{
		3391	IO::AIO::min_parallel 8;
		3392
		3393	undef $Coro::AIO::WATCHER;
		3394	IO::AIO::max_poll_time $TICK * 0.1;
		3395	$AIO_POLL_WATCHER = Event->io (
		3396	reentrant => 0,
		3397	data => WF_AUTOCANCEL,
		3398	fd => IO::AIO::poll_fileno,
		3399	poll => 'r',
		3400	prio => 6,
		3401	cb => \&IO::AIO::poll_cb,
		3402	);
		3403	}
		3404
		3405	my $_log_backtrace;
		3406
		3407	sub _log_backtrace {
		3408	my ($msg, @addr) = @_;
		3409
		3410	$msg =~ s/\n//;
		3411
		3412	# limit the # of concurrent backtraces
		3413	if ($_log_backtrace < 2) {
		3414	++$_log_backtrace;
		3415	async {
		3416	my @bt = fork_call {
		3417	@addr = map { sprintf "%x", $_ } @addr;
		3418	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3419	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3420	or die "addr2line: $!";
		3421
		3422	my @funcs;
		3423	my @res = <$fh>;
		3424	chomp for @res;
		3425	while (@res) {
		3426	my ($func, $line) = splice @res, 0, 2, ();
		3427	push @funcs, "[$func] $line";
		3428	}
		3429
		3430	@funcs
		3431	};
		3432
		3433	LOG llevInfo, "[ABT] $msg\n";
		3434	LOG llevInfo, "[ABT] $_\n" for @bt;
		3435	--$_log_backtrace;
		3436	};
		3437	} else {
		3438	LOG llevInfo, "[ABT] $msg\n";
		3439	LOG llevInfo, "[ABT] [suppressed]\n";
		3440	}
		3441	}
		3442
		3443	# load additional modules
		3444	use cf::pod;
2210		3445
2211	END { cf::emergency_save }	3446	END { cf::emergency_save }
2212		3447
2213	1	3448	1
2214		3449

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