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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.314 by root, Mon Jul 23 16:53:15 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	94
55	our $RANDOM_MAPS = cf::localdir . "/random";	95	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
57		101
58	binmode STDOUT;	102	binmode STDOUT;
59	binmode STDERR;	103	binmode STDERR;
60		104
61	# read virtual server time, if available	105	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
66	}	110	}
67		111
68	mkdir cf::localdir;	112	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		114
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
77		118
78	#############################################################################	119	#############################################################################
79		120
80	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
81		122
…		…
88	=item $cf::RUNTIME	129	=item $cf::RUNTIME
89		130
90	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
91	every server tick.	132	every server tick.
92		133
93	=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
94		137
95	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		142
98	=item $cf::NOW	143	=item $cf::NOW
99		144
100	The time of the last (current) server tick.	145	The time of the last (current) server tick.
101		146
102	=item $cf::TICK	147	=item $cf::TICK
103		148
104	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.
105		160
106	=item %cf::CFG	161	=item %cf::CFG
107		162
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		177
111	=back	178	=back
112		179
113	=cut	180	=cut
114		181
115	BEGIN {	182	BEGIN {
116	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	184	my $msg = join "", @_;
118	utf8::encode $msg;
119		185
120	$msg .= "\n"	186	$msg .= "\n"
121	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
122		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
124	};	193	};
125	}	194	}
126		195
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		203
134	# 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
135	# within the Safe compartment.	205	# within the Safe compartment.
136	for my $pkg (qw(	206	for my $pkg (qw(
137	cf::global cf::attachable	207	cf::global cf::attachable
…		…
146		216
147	$Event::DIED = sub {	217	$Event::DIED = sub {
148	warn "error in event callback: @_";	218	warn "error in event callback: @_";
149	};	219	};
150		220
151	my %ext_pkg;	221	#############################################################################
152	my @exts;
153	my @hook;
154		222
155	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
156		224
157	=over 4	225	=over 4
158		226
159	=cut	227	=item dumpval $ref
160		228
161	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	}
162		249
163	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
164		251
165	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
166		253
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
175		255
176	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
177		257
178	=cut	258	=cut
179		259
180	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		261
185	=item my $guard = cf::guard { BLOCK }	262	sub to_json ($) { $json_coder->encode ($_[0]) }
186		263	sub from_json ($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		264
207	=item cf::lock_wait $string	265	=item cf::lock_wait $string
208		266
209	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
210		268
211	=item my $lock = cf::lock_acquire $string	269	=item my $lock = cf::lock_acquire $string
212		270
213	Wait until the given lock is available and then acquires it and returns	271	Wait until the given lock is available and then acquires it and returns
214	a guard object. If the guard object gets destroyed (goes out of scope,	272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
215	for example when the coroutine gets canceled), the lock is automatically	273	for example when the coroutine gets canceled), the lock is automatically
216	returned.	274	returned.
217		275
218	Lock names should begin with a unique identifier (for example, find_map	276	Lock names should begin with a unique identifier (for example, cf::map::find
219	uses map_find and load_map uses map_load).	277	uses map_find and cf::map::load uses map_load).
		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
220		282
221	=cut	283	=cut
222		284
223	our %LOCK;	285	our %LOCK;
224		286
…		…
238	# wait, to be sure we are not locked	300	# wait, to be sure we are not locked
239	lock_wait $key;	301	lock_wait $key;
240		302
241	$LOCK{$key} = [];	303	$LOCK{$key} = [];
242		304
243	cf::guard {	305	Coro::guard {
244	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
246	}	308	}
247	}	309	}
248		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
		317	sub freeze_mainloop {
		318	return unless $TICK_WATCHER->is_active;
		319
		320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
		323	$TICK_WATCHER->stop;
		324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority]
		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	Useful for short background jobs.
		334
		335	=cut
		336
		337	our @SLOT_QUEUE;
		338	our $SLOT_QUEUE;
		339
		340	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		341	$SLOT_QUEUE = Coro::async {
		342	my $signal = new Coro::Signal;
		343
		344	while () {
		345	next_job:
		346	my $avail = cf::till_tick;
		347	if ($avail > 0.01) {
		348	for (0 .. $#SLOT_QUEUE) {
		349	if ($SLOT_QUEUE[$_][0] < $avail) {
		350	my $job = splice @SLOT_QUEUE, $_, 1, ();
		351	$job->[2]->send;
		352	Coro::cede;
		353	goto next_job;
		354	}
		355	}
		356	}
		357
		358	if (@SLOT_QUEUE) {
		359	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		360	push @cf::WAIT_FOR_TICK, $signal;
		361	$signal->wait;
		362	} else {
		363	Coro::schedule;
		364	}
		365	}
		366	};
		367
		368	sub get_slot($;$) {
		369	my ($time, $pri) = @_;
		370
		371	push @SLOT_QUEUE, [$time, $pri, my $sig = new Coro::Signal];
		372	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		373	$SLOT_QUEUE->ready;
		374	$sig->wait;
		375	}
		376
249	=item cf::async { BLOCK }	377	=item cf::async { BLOCK }
250		378
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	379	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	380	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		381	thing you are allowed to do is call C<prio> on it.
253		382
254	=cut	383	=cut
255		384
256	sub async(&) {	385	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		386
265	=item cf::sync_job { BLOCK }	387	=item cf::sync_job { BLOCK }
266		388
267	The design of crossfire+ requires that the main coro ($Coro::main) is	389	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
268	always able to handle events or runnable, as crossfire+ is only partly	390	is always able to handle events or runnable, as Crossfire TRT is only
269	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	391	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		392	acceptable.
270		393
271	If it must be done, put the blocking parts into C<sync_job>. This will run	394	If it must be done, put the blocking parts into C<sync_job>. This will run
272	the given BLOCK in another coroutine while waiting for the result. The	395	the given BLOCK in another coroutine while waiting for the result. The
273	server will be frozen during this time, so the block should either finish	396	server will be frozen during this time, so the block should either finish
274	fast or be very important.	397	fast or be very important.
…		…
277		400
278	sub sync_job(&) {	401	sub sync_job(&) {
279	my ($job) = @_;	402	my ($job) = @_;
280		403
281	if ($Coro::current == $Coro::main) {	404	if ($Coro::current == $Coro::main) {
		405	my $time = Event::time;
		406
282	# this is the main coro, too bad, we have to block	407	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	408	# till the operation succeeds, freezing the server :/
284		409
285	# TODO: use suspend/resume instead	410	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	411	# (but this is cancel-safe)
287	local $FREEZE = 1;	412	my $freeze_guard = freeze_mainloop;
288		413
289	my $busy = 1;	414	my $busy = 1;
290	my @res;	415	my @res;
291		416
292	(Coro::async {	417	(async {
293	@res = eval { $job->() };	418	@res = eval { $job->() };
294	warn $@ if $@;	419	warn $@ if $@;
295	undef $busy;	420	undef $busy;
296	})->prio (Coro::PRIO_MAX);	421	})->prio (Coro::PRIO_MAX);
297		422
298	while ($busy) {	423	while ($busy) {
299	Coro::cede_notself;	424	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	425	}
		426
		427	$time = Event::time - $time;
		428
		429	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		430	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		431
		432	$tick_start += $time; # do not account sync jobs to server load
302		433
303	wantarray ? @res : $res[0]	434	wantarray ? @res : $res[0]
304	} else {	435	} else {
305	# we are in another coroutine, how wonderful, everything just works	436	# we are in another coroutine, how wonderful, everything just works
306		437
307	$job->()	438	$job->()
308	}	439	}
309	}	440	}
310		441
311	=item $coro = cf::coro { BLOCK }	442	=item $coro = cf::async_ext { BLOCK }
312		443
313	Creates and returns a new coro. This coro is automcatially being canceled	444	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	445	extension calling this is being unloaded.
315		446
316	=cut	447	=cut
317		448
318	sub coro(&) {	449	sub async_ext(&) {
319	my $cb = shift;	450	my $cb = shift;
320		451
321	my $coro = &cf::async ($cb);	452	my $coro = &Coro::async ($cb);
322		453
323	$coro->on_destroy (sub {	454	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	455	delete $EXT_CORO{$coro+0};
325	});	456	});
326	$EXT_CORO{$coro+0} = $coro;	457	$EXT_CORO{$coro+0} = $coro;
327		458
328	$coro	459	$coro
329	}	460	}
330		461
331	sub write_runtime {	462	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		463
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	464	Executes the given code block with the given arguments in a seperate
335	or return;	465	process, returning the results. Everything must be serialisable with
		466	Coro::Storable. May, of course, block. Note that the executed sub may
		467	never block itself or use any form of Event handling.
336		468
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	469	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		470
341	aio_fsync $fh	471	sub _store_scalar {
342	and return;	472	open my $fh, ">", \my $buf
343		473	or die "fork_call: cannot open fh-to-buf in child : $!";
		474	Storable::store_fd $_[0], $fh;
344	close $fh	475	close $fh;
345	or return;
346		476
347	aio_rename "$runtime~", $runtime	477	$buf
348	and return;	478	}
349		479
		480	sub fork_call(&@) {
		481	my ($cb, @args) = @_;
		482
		483	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		484	# or die "socketpair: $!";
		485	pipe my $fh1, my $fh2
		486	or die "pipe: $!";
		487
		488	if (my $pid = fork) {
		489	close $fh2;
		490
		491	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		492	warn "pst<$res>" unless $res =~ /^pst/;
		493	$res = Coro::Storable::thaw $res;
		494
		495	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		496
		497	Carp::confess $$res unless "ARRAY" eq ref $res;
		498
		499	return wantarray ? @$res : $res->[-1];
		500	} else {
		501	reset_signals;
		502	local $SIG{__WARN__};
		503	local $SIG{__DIE__};
		504	# just in case, this hack effectively disables event
		505	# in the child. cleaner and slower would be canceling all watchers,
		506	# but this works for the time being.
		507	local $Coro::idle;
		508	$Coro::current->prio (Coro::PRIO_MAX);
		509
		510	eval {
		511	close $fh1;
		512
		513	my @res = eval { $cb->(@args) };
		514
		515	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		516	close $fh2;
		517	};
		518
		519	warn $@ if $@;
		520	_exit 0;
350	1	521	}
		522	}
		523
		524	=item $value = cf::db_get $family => $key
		525
		526	Returns a single value from the environment database.
		527
		528	=item cf::db_put $family => $key => $value
		529
		530	Stores the given C<$value> in the family. It can currently store binary
		531	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		532
		533	=cut
		534
		535	our $DB;
		536
		537	sub db_init {
		538	unless ($DB) {
		539	$DB = BDB::db_create $DB_ENV;
		540
		541	cf::sync_job {
		542	eval {
		543	$DB->set_flags (BDB::CHKSUM);
		544
		545	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		546	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		547	cf::cleanup "db_open(db): $!" if $!;
		548	};
		549	cf::cleanup "db_open(db): $@" if $@;
		550	};
		551	}
		552	}
		553
		554	sub db_get($$) {
		555	my $key = "$_[0]/$_[1]";
		556
		557	cf::sync_job {
		558	BDB::db_get $DB, undef, $key, my $data;
		559
		560	$! ? ()
		561	: $data
		562	}
		563	}
		564
		565	sub db_put($$$) {
		566	BDB::dbreq_pri 4;
		567	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		568	}
		569
		570	=item cf::cache $id => [$paths...], $processversion => $process
		571
		572	Generic caching function that returns the value of the resource $id,
		573	caching and regenerating as required.
		574
		575	This function can block.
		576
		577	=cut
		578
		579	sub cache {
		580	my ($id, $src, $processversion, $process) = @_;
		581
		582	my $meta =
		583	join "\x00",
		584	$processversion,
		585	map {
		586	aio_stat $_
		587	and Carp::croak "$_: $!";
		588
		589	($_, (stat _)[7,9])
		590	} @$src;
		591
		592	my $dbmeta = db_get cache => "$id/meta";
		593	if ($dbmeta ne $meta) {
		594	# changed, we may need to process
		595
		596	my @data;
		597	my $md5;
		598
		599	for (0 .. $#$src) {
		600	0 <= aio_load $src->[$_], $data[$_]
		601	or Carp::croak "$src->[$_]: $!";
		602	}
		603
		604	# if processing is expensive, check
		605	# checksum first
		606	if (1) {
		607	$md5 =
		608	join "\x00",
		609	$processversion,
		610	map {
		611	Coro::cede;
		612	($src->[$_], Digest::MD5::md5_hex $data[$_])
		613	} 0.. $#$src;
		614
		615
		616	my $dbmd5 = db_get cache => "$id/md5";
		617	if ($dbmd5 eq $md5) {
		618	db_put cache => "$id/meta", $meta;
		619
		620	return db_get cache => "$id/data";
		621	}
		622	}
		623
		624	my $t1 = Time::HiRes::time;
		625	my $data = $process->(\@data);
		626	my $t2 = Time::HiRes::time;
		627
		628	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		629
		630	db_put cache => "$id/data", $data;
		631	db_put cache => "$id/md5" , $md5;
		632	db_put cache => "$id/meta", $meta;
		633
		634	return $data;
		635	}
		636
		637	db_get cache => "$id/data"
		638	}
		639
		640	=item cf::datalog type => key => value, ...
		641
		642	Log a datalog packet of the given type with the given key-value pairs.
		643
		644	=cut
		645
		646	sub datalog($@) {
		647	my ($type, %kv) = @_;
		648	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
351	}	649	}
352		650
353	=back	651	=back
354		652
355	=cut	653	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		654
477	#############################################################################	655	#############################################################################
478		656
479	=head2 ATTACHABLE OBJECTS	657	=head2 ATTACHABLE OBJECTS
480		658
…		…
482	attach callbacks/event handlers (a collection of which is called an "attachment")	660	attach callbacks/event handlers (a collection of which is called an "attachment")
483	to it. All such attachable objects support the following methods.	661	to it. All such attachable objects support the following methods.
484		662
485	In the following description, CLASS can be any of C<global>, C<object>	663	In the following description, CLASS can be any of C<global>, C<object>
486	C<player>, C<client> or C<map> (i.e. the attachable objects in	664	C<player>, C<client> or C<map> (i.e. the attachable objects in
487	crossfire+).	665	Crossfire TRT).
488		666
489	=over 4	667	=over 4
490		668
491	=item $attachable->attach ($attachment, key => $value...)	669	=item $attachable->attach ($attachment, key => $value...)
492		670
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	784	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	785	our @CB_MAP = ();
608		786
609	my %attachment;	787	my %attachment;
610		788
		789	sub cf::attachable::thawer_merge {
		790	# simply override everything except _meta
		791	local $_[0]{_meta};
		792	%{$_[0]} = %{$_[1]};
		793	}
		794
611	sub _attach_cb($$$$) {	795	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	796	my ($registry, $event, $prio, $cb) = @_;
613		797
614	use sort 'stable';	798	use sort 'stable';
615		799
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	833	$registry = $CB_TYPE[$object_type] ||= [];
650		834
651	} elsif ($type eq "subtype") {	835	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	836	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	837	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	838	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		839
656	} elsif ($type eq "package") {	840	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	841	my $pkg = shift @arg;
658		842
659	while (my ($name, $id) = each %cb_id) {	843	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	872	_attach $registry, $klass, @attach;
689	}	873	}
690		874
691	$obj->{$name} = \%arg;	875	$obj->{$name} = \%arg;
692	} else {	876	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	877	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	878	}
695		879
696	$obj->{_attachment}{$name} = undef;	880	$obj->{_attachment}{$name} = undef;
697	}	881	}
698		882
…		…
700	if (ref $_[0]) {	884	if (ref $_[0]) {
701	_object_attach @_;	885	_object_attach @_;
702	} else {	886	} else {
703	_attach shift->_attach_registry, @_;	887	_attach shift->_attach_registry, @_;
704	}	888	}
		889	_recalc_want;
705	};	890	};
706		891
707	# all those should be optimised	892	# all those should be optimised
708	sub cf::attachable::detach {	893	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	894	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	897	delete $obj->{_attachment}{$name};
713	reattach ($obj);	898	reattach ($obj);
714	} else {	899	} else {
715	Carp::croak "cannot, currently, detach class attachments";	900	Carp::croak "cannot, currently, detach class attachments";
716	}	901	}
		902	_recalc_want;
717	};	903	};
718		904
719	sub cf::attachable::attached {	905	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	906	my ($obj, $name) = @_;
721		907
…		…
736	";	922	";
737	die if $@;	923	die if $@;
738	}	924	}
739		925
740	our $override;	926	our $override;
741	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	927	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
742		928
743	sub override {	929	sub override {
744	$override = 1;	930	$override = 1;
745	@invoke_results = ();	931	@INVOKE_RESULTS = (@_);
746	}	932	}
747		933
748	sub do_invoke {	934	sub do_invoke {
749	my $event = shift;	935	my $event = shift;
750	my $callbacks = shift;	936	my $callbacks = shift;
751		937
752	@invoke_results = ();	938	@INVOKE_RESULTS = ();
753		939
754	local $override;	940	local $override;
755		941
756	for (@$callbacks) {	942	for (@$callbacks) {
757	eval { &{$_->[1]} };	943	eval { &{$_->[1]} };
…		…
774		960
775	Generate an object-specific event with the given arguments.	961	Generate an object-specific event with the given arguments.
776		962
777	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	963	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
778	removed in future versions), and there is no public API to access override	964	removed in future versions), and there is no public API to access override
779	results (if you must, access C<@cf::invoke_results> directly).	965	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		966
781	=back	967	=back
782		968
783	=cut	969	=cut
784		970
785	#############################################################################	971	#############################################################################
786	# object support	972	# object support
		973	#
		974
		975	sub _can_merge {
		976	my ($ob1, $ob2) = @_;
		977
		978	local $Storable::canonical = 1;
		979	my $fob1 = Storable::freeze $ob1;
		980	my $fob2 = Storable::freeze $ob2;
		981
		982	$fob1 eq $fob2
		983	}
787		984
788	sub reattach {	985	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	986	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	987	my ($obj) = @_;
		988
		989	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		990
792	my $registry = $obj->registry;	991	my $registry = $obj->registry;
793		992
794	@$registry = ();	993	@$registry = ();
795		994
…		…
842	$filename, length $$rdata, scalar @$objs;	1041	$filename, length $$rdata, scalar @$objs;
843		1042
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1043	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1044	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1045	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	1046	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	1047	close $fh;
849		1048
850	if (@$objs) {	1049	if (@$objs) {
851	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1050	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
852	chmod SAVE_MODE, $fh;	1051	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1052	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1053	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	1054	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	1055	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1056	aio_rename "$filename.pst~", "$filename.pst";
858	}	1057	}
859	} else {	1058	} else {
860	aio_unlink "$filename.pst";	1059	aio_unlink "$filename.pst";
…		…
892	or return;	1091	or return;
893	$av = eval { (Storable::thaw $av)->{objs} };	1092	$av = eval { (Storable::thaw $av)->{objs} };
894	}	1093	}
895		1094
896	warn sprintf "loading %s (%d)\n",	1095	warn sprintf "loading %s (%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1096	$filename, length $data, scalar @{$av || []};
898	return ($data, $av);	1097	return ($data, $av);
899	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
900		1105
901	#############################################################################	1106	#############################################################################
902	# command handling &c	1107	# command handling &c
903		1108
904	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1123	}
919		1124
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1126
922	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
923		1132
924	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
925	called.	1134	called.
926		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
927	=cut	1147	=cut
928		1148
929	sub register_extcmd {	1149	sub register_extcmd {
930	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
931		1151
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
936	}	1159	}
937		1160
938	cf::player->attach (	1161	cf::player->attach (
939	on_command => sub {	1162	on_command => sub {
940	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
949	cf::override;	1172	cf::override;
950	},	1173	},
951	on_extcmd => sub {	1174	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
953		1176
954	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1178
956	if (ref $msg) {	1179	if (ref $msg) {
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1180	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1181	if (my %reply = $cb->($pl, $msg)) {
959	$pl->ext_reply ($msg->{msgid}, %reply);	1182	$pl->ext_reply ($msg->{msgid}, %reply);
960	}	1183	}
961	}	1184	}
962	} else {	1185	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1186	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
965		1188
966	cf::override;	1189	cf::override;
967	},	1190	},
968	);	1191	);
969		1192
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	sub load_extension {	1193	sub load_extensions {
		1194	cf::sync_job {
		1195	my %todo;
		1196
		1197	for my $path (<$LIBDIR/*.ext>) {
		1198	next unless -r $path;
		1199
		1200	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1201	my $base = $1;
		1202	my $pkg = $1;
		1203	$pkg =~ s/[^[:word:]]/_/g;
		1204	$pkg = "ext::$pkg";
		1205
		1206	open my $fh, "<:utf8", $path
		1207	or die "$path: $!";
		1208
		1209	my $source = do { local $/; <$fh> };
		1210
		1211	my %ext = (
		1212	path => $path,
		1213	base => $base,
		1214	pkg => $pkg,
		1215	);
		1216
		1217	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1218	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1219
		1220	$ext{source} =
		1221	"package $pkg; use strict; use utf8;\n"
		1222	. "#line 1 \"$path\"\n{\n"
		1223	. $source
		1224	. "\n};\n1";
		1225
		1226	$todo{$base} = \%ext;
		1227	}
		1228
		1229	my %done;
		1230	while (%todo) {
		1231	my $progress;
		1232
		1233	while (my ($k, $v) = each %todo) {
		1234	for (split /,\s*/, $v->{meta}{depends}) {
		1235	goto skip
		1236	unless exists $done{$_};
		1237	}
		1238
		1239	warn "... loading '$k' into '$v->{pkg}'\n";
		1240
		1241	unless (eval $v->{source}) {
		1242	my $msg = $@ ? "$v->{path}: $@\n"
		1243	: "$v->{base}: extension inactive.\n";
		1244
		1245	if (exists $v->{meta}{mandatory}) {
		1246	warn $msg;
		1247	warn "mandatory extension failed to load, exiting.\n";
		1248	exit 1;
		1249	}
		1250
		1251	warn $msg;
		1252	}
		1253
		1254	$done{$k} = delete $todo{$k};
		1255	push @EXTS, $v->{pkg};
		1256	$progress = 1;
		1257	}
		1258
		1259	skip:
		1260	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1261	unless $progress;
		1262	}
		1263	};
		1264	}
		1265
		1266	#############################################################################
		1267
		1268	=back
		1269
		1270	=head2 CORE EXTENSIONS
		1271
		1272	Functions and methods that extend core crossfire objects.
		1273
		1274	=cut
		1275
		1276	package cf::player;
		1277
		1278	use Coro::AIO;
		1279
		1280	=head3 cf::player
		1281
		1282	=over 4
		1283
		1284	=item cf::player::find $login
		1285
		1286	Returns the given player object, loading it if necessary (might block).
		1287
		1288	=cut
		1289
		1290	sub playerdir($) {
		1291	"$PLAYERDIR/"
		1292	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1293	}
		1294
		1295	sub path($) {
		1296	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1297
		1298	(playerdir $login) . "/playerdata"
		1299	}
		1300
		1301	sub find_active($) {
		1302	$cf::PLAYER{$_[0]}
		1303	and $cf::PLAYER{$_[0]}->active
		1304	and $cf::PLAYER{$_[0]}
		1305	}
		1306
		1307	sub exists($) {
		1308	my ($login) = @_;
		1309
		1310	$cf::PLAYER{$login}
		1311	or cf::sync_job { !aio_stat path $login }
		1312	}
		1313
		1314	sub find($) {
		1315	return $cf::PLAYER{$_[0]} || do {
		1316	my $login = $_[0];
		1317
		1318	my $guard = cf::lock_acquire "user_find:$login";
		1319
		1320	$cf::PLAYER{$_[0]} || do {
		1321	# rename old playerfiles to new ones
		1322	#TODO: remove when no longer required
		1323	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1324	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1325	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1326	aio_unlink +(playerdir $login) . "/$login.pl";
		1327
		1328	my $pl = load_pl path $login
		1329	or return;
		1330	$cf::PLAYER{$login} = $pl
		1331	}
		1332	}
		1333	}
		1334
		1335	sub save($) {
		1336	my ($pl) = @_;
		1337
		1338	return if $pl->{deny_save};
		1339
		1340	my $path = path $pl;
		1341	my $guard = cf::lock_acquire "user_save:$path";
		1342
		1343	return if $pl->{deny_save};
		1344
		1345	aio_mkdir playerdir $pl, 0770;
		1346	$pl->{last_save} = $cf::RUNTIME;
		1347
		1348	$pl->save_pl ($path);
		1349	Coro::cede;
		1350	}
		1351
		1352	sub new($) {
		1353	my ($login) = @_;
		1354
		1355	my $self = create;
		1356
		1357	$self->ob->name ($login);
		1358	$self->{deny_save} = 1;
		1359
		1360	$cf::PLAYER{$login} = $self;
		1361
		1362	$self
		1363	}
		1364
		1365	=item $pl->quit_character
		1366
		1367	Nukes the player without looking back. If logged in, the connection will
		1368	be destroyed. May block for a long time.
		1369
		1370	=cut
		1371
		1372	sub quit_character {
		1373	my ($pl) = @_;
		1374
		1375	my $name = $pl->ob->name;
		1376
		1377	$pl->{deny_save} = 1;
		1378	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1379
		1380	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1381	$pl->deactivate;
		1382	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1383	$pl->ns->destroy if $pl->ns;
		1384
		1385	my $path = playerdir $pl;
		1386	my $temp = "$path~$cf::RUNTIME~deleting~";
		1387	aio_rename $path, $temp;
		1388	delete $cf::PLAYER{$pl->ob->name};
		1389	$pl->destroy;
		1390
		1391	my $prefix = qr<^~\Q$name\E/>;
		1392
		1393	# nuke player maps
		1394	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1395
		1396	IO::AIO::aio_rmtree $temp;
		1397	}
		1398
		1399	=item $pl->kick
		1400
		1401	Kicks a player out of the game. This destroys the connection.
		1402
		1403	=cut
		1404
		1405	sub kick {
		1406	my ($pl, $kicker) = @_;
		1407
		1408	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1409	$pl->killer ("kicked");
		1410	$pl->ns->destroy;
		1411	}
		1412
		1413	=item cf::player::list_logins
		1414
		1415	Returns am arrayref of all valid playernames in the system, can take a
		1416	while and may block, so not sync_job-capable, ever.
		1417
		1418	=cut
		1419
		1420	sub list_logins {
		1421	my $dirs = aio_readdir $PLAYERDIR
		1422	or return [];
		1423
		1424	my @logins;
		1425
		1426	for my $login (@$dirs) {
		1427	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1428	aio_read $fh, 0, 512, my $buf, 0 or next;
		1429	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1430
		1431	utf8::decode $login;
		1432	push @logins, $login;
		1433	}
		1434
		1435	\@logins
		1436	}
		1437
		1438	=item $player->maps
		1439
		1440	Returns an arrayref of map paths that are private for this
		1441	player. May block.
		1442
		1443	=cut
		1444
		1445	sub maps($) {
		1446	my ($pl) = @_;
		1447
		1448	$pl = ref $pl ? $pl->ob->name : $pl;
		1449
		1450	my $files = aio_readdir playerdir $pl
		1451	or return;
		1452
		1453	my @paths;
		1454
		1455	for (@$files) {
		1456	utf8::decode $_;
		1457	next if /\.(?:pl|pst)$/;
		1458	next unless /^$PATH_SEP/o;
		1459
		1460	push @paths, cf::map::normalise "~$pl/$_";
		1461	}
		1462
		1463	\@paths
		1464	}
		1465
		1466	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1467
		1468	Expand crossfire pod fragments into protocol xml.
		1469
		1470	=cut
		1471
		1472	sub expand_cfpod {
		1473	((my $self), (local $_)) = @_;
		1474
		1475	# escape & and <
		1476	s/&/&amp;/g;
		1477	s/(?<![BIUGH])</&lt;/g;
		1478
		1479	# this is buggy, it needs to properly take care of nested <'s
		1480
		1481	1 while
		1482	# replace B<>, I<>, U<> etc.
		1483	s/B<([^\>]*)>/<b>$1<\/b>/
		1484	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1485	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1486	# replace G<male|female> tags
		1487	|| s{G<([^>|]*)\|([^>]*)>}{
		1488	$self->gender ? $2 : $1
		1489	}ge
		1490	# replace H<hint text>
		1491	|| s{H<([^\>]*)>}
		1492	{
		1493	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1494	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1495	"")
		1496	[$self->{hintmode}]
		1497	}ge;
		1498
		1499	# create single paragraphs (very hackish)
		1500	s/(?<=\S)\n(?=\w)/ /g;
		1501
		1502	# compress some whitespace
		1503	s/\s+\n/\n/g; # ws line-ends
		1504	s/\n\n+/\n/g; # double lines
		1505	s/^\n+//; # beginning lines
		1506	s/\n+$//; # ending lines
		1507
		1508	$_
		1509	}
		1510
		1511	sub hintmode {
		1512	$_[0]{hintmode} = $_[1] if @_ > 1;
		1513	$_[0]{hintmode}
		1514	}
		1515
		1516	=item $player->ext_reply ($msgid, %msg)
		1517
		1518	Sends an ext reply to the player.
		1519
		1520	=cut
		1521
		1522	sub ext_reply($$%) {
		1523	my ($self, $id, %msg) = @_;
		1524
		1525	$msg{msgid} = $id;
		1526	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1527	}
		1528
		1529	=item $player->ext_event ($type, %msg)
		1530
		1531	Sends an ext event to the client.
		1532
		1533	=cut
		1534
		1535	sub ext_event($$%) {
		1536	my ($self, $type, %msg) = @_;
		1537
		1538	$self->ns->ext_event ($type, %msg);
		1539	}
		1540
		1541	=head3 cf::region
		1542
		1543	=over 4
		1544
		1545	=cut
		1546
		1547	package cf::region;
		1548
		1549	=item cf::region::find_by_path $path
		1550
		1551	Tries to decuce the likely region for a map knowing only its path.
		1552
		1553	=cut
		1554
		1555	sub find_by_path($) {
977	my ($path) = @_;	1556	my ($path) = @_;
978		1557
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1558	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1559
985	warn "loading '$path' into '$pkg'\n";	1560	for my $region (list) {
986		1561	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1562	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1563	if $region->specificity > $specificity;
989		1564	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1565	}
1019		1566
1020	# remove commands	1567	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1568	}
1126		1569
1127	=back	1570	=back
1128
1129		1571
1130	=head3 cf::map	1572	=head3 cf::map
1131		1573
1132	=over 4	1574	=over 4
1133		1575
…		…
1136	package cf::map;	1578	package cf::map;
1137		1579
1138	use Fcntl;	1580	use Fcntl;
1139	use Coro::AIO;	1581	use Coro::AIO;
1140		1582
		1583	use overload
		1584	'""' => \&as_string,
		1585	fallback => 1;
		1586
1141	our $MAX_RESET = 7200;	1587	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1588	our $DEFAULT_RESET = 3000;
1143		1589
1144	sub generate_random_map {	1590	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1591	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1592	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1593	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1594	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1595	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1596	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1597	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1598	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1599	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1600	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1601	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1602	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1603	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(cf::region::find $rmp->{region})	1604	(cf::region::find $rmp->{region}), $rmp->{custom}
		1605	)
		1606	}
		1607
		1608	=item cf::map->register ($regex, $prio)
		1609
		1610	Register a handler for the map path matching the given regex at the
		1611	givne priority (higher is better, built-in handlers have priority 0, the
		1612	default).
		1613
		1614	=cut
		1615
		1616	sub register {
		1617	my (undef, $regex, $prio) = @_;
		1618	my $pkg = caller;
		1619
		1620	no strict;
		1621	push @{"$pkg\::ISA"}, __PACKAGE__;
		1622
		1623	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1624	}
		1625
		1626	# also paths starting with '/'
		1627	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1628
		1629	sub thawer_merge {
		1630	my ($self, $merge) = @_;
		1631
		1632	# we have to keep some variables in memory intact
		1633	local $self->{path};
		1634	local $self->{load_path};
		1635
		1636	$self->SUPER::thawer_merge ($merge);
		1637	}
		1638
		1639	sub normalise {
		1640	my ($path, $base) = @_;
		1641
		1642	$path = "$path"; # make sure its a string
		1643
		1644	$path =~ s/\.map$//;
		1645
		1646	# map plan:
		1647	#
		1648	# /! non-realised random map exit (special hack!)
		1649	# {... are special paths that are not being touched
		1650	# ?xxx/... are special absolute paths
		1651	# ?random/... random maps
		1652	# /... normal maps
		1653	# ~user/... per-player map of a specific user
		1654
		1655	$path =~ s/$PATH_SEP/\//go;
		1656
		1657	# treat it as relative path if it starts with
		1658	# something that looks reasonable
		1659	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1660	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1661
		1662	$base =~ s{[^/]+/?$}{};
		1663	$path = "$base/$path";
		1664	}
		1665
		1666	for ($path) {
		1667	redo if s{//}{/};
		1668	redo if s{/\.?/}{/};
		1669	redo if s{/[^/]+/\.\./}{/};
		1670	}
		1671
		1672	$path
		1673	}
		1674
		1675	sub new_from_path {
		1676	my (undef, $path, $base) = @_;
		1677
		1678	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1679
		1680	$path = normalise $path, $base;
		1681
		1682	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1683	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1684	my $self = bless cf::map::new, $pkg;
		1685	$self->{path} = $path; $self->path ($path);
		1686	$self->init; # pass $1 etc.
		1687	return $self;
		1688	}
		1689	}
		1690
		1691	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1692	()
		1693	}
		1694
		1695	sub init {
		1696	my ($self) = @_;
		1697
		1698	$self
		1699	}
		1700
		1701	sub as_string {
		1702	my ($self) = @_;
		1703
		1704	"$self->{path}"
		1705	}
		1706
		1707	# the displayed name, this is a one way mapping
		1708	sub visible_name {
		1709	&as_string
		1710	}
		1711
		1712	# the original (read-only) location
		1713	sub load_path {
		1714	my ($self) = @_;
		1715
		1716	"$MAPDIR/$self->{path}.map"
		1717	}
		1718
		1719	# the temporary/swap location
		1720	sub save_path {
		1721	my ($self) = @_;
		1722
		1723	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1724	"$TMPDIR/$path.map"
		1725	}
		1726
		1727	# the unique path, undef == no special unique path
		1728	sub uniq_path {
		1729	my ($self) = @_;
		1730
		1731	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1732	"$UNIQUEDIR/$path"
1161	}	1733	}
1162		1734
1163	# and all this just because we cannot iterate over	1735	# and all this just because we cannot iterate over
1164	# all maps in C++...	1736	# all maps in C++...
1165	sub change_all_map_light {	1737	sub change_all_map_light {
…		…
1167		1739
1168	$_->change_map_light ($change)	1740	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1741	for grep $_->outdoor, values %cf::MAP;
1170	}	1742	}
1171		1743
		1744	sub decay_objects {
		1745	my ($self) = @_;
		1746
		1747	return if $self->{deny_reset};
		1748
		1749	$self->do_decay_objects;
		1750	}
		1751
		1752	sub unlink_save {
		1753	my ($self) = @_;
		1754
		1755	utf8::encode (my $save = $self->save_path);
		1756	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1757	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1758	}
		1759
1172	sub try_load_header($) {	1760	sub load_header_from($) {
1173	my ($path) = @_;	1761	my ($self, $path) = @_;
1174		1762
1175	utf8::encode $path;	1763	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1764	#aio_open $path, O_RDONLY, 0
		1765	# or return;
		1766
		1767	$self->_load_header ($path)
1177	or return;	1768	or return;
1178		1769
1179	my $map = cf::map::new	1770	$self->{load_path} = $path;
		1771
		1772	1
		1773	}
		1774
		1775	sub load_header_orig {
		1776	my ($self) = @_;
		1777
		1778	$self->load_header_from ($self->load_path)
		1779	}
		1780
		1781	sub load_header_temp {
		1782	my ($self) = @_;
		1783
		1784	$self->load_header_from ($self->save_path)
		1785	}
		1786
		1787	sub prepare_temp {
		1788	my ($self) = @_;
		1789
		1790	$self->last_access ((delete $self->{last_access})
		1791	|| $cf::RUNTIME); #d#
		1792	# safety
		1793	$self->{instantiate_time} = $cf::RUNTIME
		1794	if $self->{instantiate_time} > $cf::RUNTIME;
		1795	}
		1796
		1797	sub prepare_orig {
		1798	my ($self) = @_;
		1799
		1800	$self->{load_original} = 1;
		1801	$self->{instantiate_time} = $cf::RUNTIME;
		1802	$self->last_access ($cf::RUNTIME);
		1803	$self->instantiate;
		1804	}
		1805
		1806	sub load_header {
		1807	my ($self) = @_;
		1808
		1809	if ($self->load_header_temp) {
		1810	$self->prepare_temp;
		1811	} else {
		1812	$self->load_header_orig
1180	or return;	1813	or return;
		1814	$self->prepare_orig;
		1815	}
1181		1816
1182	$map->load_header ($path)	1817	$self->{deny_reset} = 1
1183	or return;	1818	if $self->no_reset;
1184		1819
1185	$map->{load_path} = $path;	1820	$self->default_region (cf::region::find_by_path $self->{path})
		1821	unless $self->default_region;
1186		1822
1187	$map	1823	1
1188	}	1824	}
1189		1825
1190	sub find_map;	1826	sub find;
1191	sub find_map {	1827	sub find {
1192	my ($path, $origin) = @_;	1828	my ($path, $origin) = @_;
1193		1829
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1830	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1831
1199	cf::lock_wait "map_find:$key";	1832	cf::lock_wait "map_find:$path";
1200		1833
1201	$cf::MAP{$key} || do {	1834	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1835	my $guard = cf::lock_acquire "map_find:$path";
1203		1836	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1837	or return;
1219		1838
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1839	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1840
1233	if ($map->should_reset) {	1841	$map->load_header
		1842	or return;
		1843
		1844	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1845	# doing this can freeze the server in a sync job, obviously
		1846	#$cf::WAIT_FOR_TICK->wait;
1234	$map->reset;	1847	$map->reset;
1235	undef $guard;	1848	undef $guard;
1236	$map = find_map $path	1849	return find $path;
1237	or return;
1238	}	1850	}
1239		1851
1240	$cf::MAP{$key} = $map	1852	$cf::MAP{$path} = $map
1241	}	1853	}
1242	}	1854	}
		1855
		1856	sub pre_load { }
		1857	sub post_load { }
1243		1858
1244	sub load {	1859	sub load {
1245	my ($self) = @_;	1860	my ($self) = @_;
1246		1861
		1862	local $self->{deny_reset} = 1; # loading can take a long time
		1863
1247	my $path = $self->{path};	1864	my $path = $self->{path};
		1865
		1866	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1867	my $guard = cf::lock_acquire "map_load:$path";
1249		1868
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1869	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1870
1252	$self->in_memory (cf::MAP_LOADING);	1871	$self->in_memory (cf::MAP_LOADING);
1253		1872
1254	$self->alloc;	1873	$self->alloc;
		1874
		1875	$self->pre_load;
		1876	Coro::cede;
		1877
1255	$self->load_objects ($self->{load_path}, 1)	1878	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1879	or return;
1257		1880
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1881	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1882	if delete $self->{load_original};
1260		1883
1261	if (my $uniq = $path->uniq_path) {	1884	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1885	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1886	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1887	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1888	$self->_load_objects ($uniq, 0);
1266	}	1889	}
1267	}	1890	}
1268		1891
		1892	Coro::cede;
1269	# now do the right thing for maps	1893	# now do the right thing for maps
1270	$self->link_multipart_objects;	1894	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1895	$self->difficulty ($self->estimate_difficulty)
1281	unless $self->difficulty;	1896	unless $self->difficulty;
		1897	Coro::cede;
		1898
		1899	unless ($self->{deny_activate}) {
		1900	$self->decay_objects;
		1901	$self->fix_auto_apply;
		1902	$self->update_buttons;
		1903	Coro::cede;
		1904	$self->set_darkness_map;
		1905	Coro::cede;
1282	$self->activate;	1906	$self->activate;
1283	}	1907	}
1284		1908
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1909	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1910	}
1287		1911
1288	sub load_map_sync {	1912	$self->post_load;
		1913	}
		1914
		1915	sub customise_for {
		1916	my ($self, $ob) = @_;
		1917
		1918	return find "~" . $ob->name . "/" . $self->{path}
		1919	if $self->per_player;
		1920
		1921	# return find "?party/" . $ob->name . "/" . $self->{path}
		1922	# if $self->per_party;
		1923
		1924	$self
		1925	}
		1926
		1927	# find and load all maps in the 3x3 area around a map
		1928	sub load_diag {
		1929	my ($map) = @_;
		1930
		1931	my @diag; # diagonal neighbours
		1932
		1933	for (0 .. 3) {
		1934	my $neigh = $map->tile_path ($_)
		1935	or next;
		1936	$neigh = find $neigh, $map
		1937	or next;
		1938	$neigh->load;
		1939
		1940	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1941	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1942	}
		1943
		1944	for (@diag) {
		1945	my $neigh = find @$_
		1946	or next;
		1947	$neigh->load;
		1948	}
		1949	}
		1950
		1951	sub find_sync {
1289	my ($path, $origin) = @_;	1952	my ($path, $origin) = @_;
1290		1953
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1954	cf::sync_job { find $path, $origin }
		1955	}
1292		1956
1293	cf::sync_job {	1957	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1958	my ($map) = @_;
1295	or return;	1959
		1960	cf::sync_job { $map->load };
		1961	}
		1962
		1963	our %MAP_PREFETCH;
		1964	our $MAP_PREFETCHER = undef;
		1965
		1966	sub find_async {
		1967	my ($path, $origin) = @_;
		1968
		1969	$path = normalise $path, $origin && $origin->{path};
		1970
		1971	if (my $map = $cf::MAP{$path}) {
		1972	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1973	}
		1974
		1975	undef $MAP_PREFETCH{$path};
		1976	$MAP_PREFETCHER ||= cf::async {
		1977	while (%MAP_PREFETCH) {
		1978	for my $path (keys %MAP_PREFETCH) {
		1979	if (my $map = find $path) {
1296	$map->load;	1980	$map->load;
1297	$map	1981	}
		1982
		1983	delete $MAP_PREFETCH{$path};
		1984	}
		1985	}
		1986	undef $MAP_PREFETCHER;
1298	}	1987	};
		1988	$MAP_PREFETCHER->prio (6);
		1989
		1990	()
1299	}	1991	}
1300		1992
1301	sub save {	1993	sub save {
1302	my ($self) = @_;	1994	my ($self) = @_;
1303		1995
		1996	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1997
1304	$self->{last_save} = $cf::RUNTIME;	1998	$self->{last_save} = $cf::RUNTIME;
1305		1999
1306	return unless $self->dirty;	2000	return unless $self->dirty;
1307		2001
1308	my $save = $self->{path}->save_path; utf8::encode $save;	2002	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		2004
1311	$self->{load_path} = $save;	2005	$self->{load_path} = $save;
1312		2006
1313	return if $self->{deny_save};	2007	return if $self->{deny_save};
1314		2008
		2009	local $self->{last_access} = $self->last_access;#d#
		2010
		2011	cf::async {
		2012	$_->contr->save for $self->players;
		2013	};
		2014
1315	if ($uniq) {	2015	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2016	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	2017	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	2018	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2019	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	2020	}
1321	}	2021	}
1322		2022
1323	sub swap_out {	2023	sub swap_out {
1324	my ($self) = @_;	2024	my ($self) = @_;
1325		2025
1326	# save first because save cedes	2026	# save first because save cedes
1327	$self->save;	2027	$self->save;
		2028
		2029	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		2030
1329	return if $self->players;	2031	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	2032	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	2033	return if $self->{deny_save};
1332		2034
…		…
1336		2038
1337	sub reset_at {	2039	sub reset_at {
1338	my ($self) = @_;	2040	my ($self) = @_;
1339		2041
1340	# TODO: safety, remove and allow resettable per-player maps	2042	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	2043	return 1e99 if $self->{deny_reset};
1343		2044
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2045	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2046	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		2047
…		…
1351	my ($self) = @_;	2052	my ($self) = @_;
1352		2053
1353	$self->reset_at <= $cf::RUNTIME	2054	$self->reset_at <= $cf::RUNTIME
1354	}	2055	}
1355		2056
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	2057	sub reset {
1378	my ($self) = @_;	2058	my ($self) = @_;
1379		2059
		2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2061
1380	return if $self->players;	2062	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		2063
1383	warn "resetting map ", $self->path;#d#	2064	warn "resetting map ", $self->path;
		2065
		2066	$self->in_memory (cf::MAP_SWAPPED);
		2067
		2068	# need to save uniques path
		2069	unless ($self->{deny_save}) {
		2070	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2071
		2072	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2073	if $uniq;
		2074	}
1384		2075
1385	delete $cf::MAP{$self->path};	2076	delete $cf::MAP{$self->path};
		2077
		2078	$self->clear;
1386		2079
1387	$_->clear_links_to ($self) for values %cf::MAP;	2080	$_->clear_links_to ($self) for values %cf::MAP;
1388		2081
1389	$self->unlink_save;	2082	$self->unlink_save;
1390	$self->destroy;	2083	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	2086	my $nuke_counter = "aaaa";
1394		2087
1395	sub nuke {	2088	sub nuke {
1396	my ($self) = @_;	2089	my ($self) = @_;
1397		2090
		2091	delete $cf::MAP{$self->path};
		2092
		2093	$self->unlink_save;
		2094
		2095	bless $self, "cf::map";
		2096	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	2097	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	2098	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	2099	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2100
		2101	$cf::MAP{$self->path} = $self;
		2102
1401	$self->reset; # polite request, might not happen	2103	$self->reset; # polite request, might not happen
1402	}	2104	}
1403		2105
1404	sub customise_for {	2106	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2107
1407	if ($map->per_player) {	2108	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2109	maps. May block.
		2110
		2111	=cut
		2112
		2113	sub tmp_maps() {
1409	}	2114	[
1410		2115	map {
1411	$map	2116	utf8::decode $_;
		2117	/\.map$/
		2118	? normalise $_
		2119	: ()
		2120	} @{ aio_readdir $TMPDIR or [] }
		2121	]
1412	}	2122	}
1413		2123
1414	sub emergency_save {	2124	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2125
1417	warn "enter emergency map save\n";	2126	Returns an arrayref with all map paths of currently instantiated and saved
		2127	random maps. May block.
1418		2128
1419	cf::sync_job {	2129	=cut
1420	warn "begin emergency map save\n";
1421	$_->save for values %cf::MAP;
1422	};
1423		2130
1424	warn "end emergency map save\n";	2131	sub random_maps() {
		2132	[
		2133	map {
		2134	utf8::decode $_;
		2135	/\.map$/
		2136	? normalise "?random/$_"
		2137	: ()
		2138	} @{ aio_readdir $RANDOMDIR or [] }
		2139	]
		2140	}
		2141
		2142	=item cf::map::unique_maps
		2143
		2144	Returns an arrayref of paths of all shared maps that have
		2145	instantiated unique items. May block.
		2146
		2147	=cut
		2148
		2149	sub unique_maps() {
		2150	[
		2151	map {
		2152	utf8::decode $_;
		2153	/\.map$/
		2154	? normalise $_
		2155	: ()
		2156	} @{ aio_readdir $UNIQUEDIR or [] }
		2157	]
1425	}	2158	}
1426		2159
1427	package cf;	2160	package cf;
1428		2161
1429	=back	2162	=back
1430		2163
		2164	=head3 cf::object
		2165
		2166	=cut
		2167
		2168	package cf::object;
		2169
		2170	=over 4
		2171
		2172	=item $ob->inv_recursive
		2173
		2174	Returns the inventory of the object _and_ their inventories, recursively.
		2175
		2176	=cut
		2177
		2178	sub inv_recursive_;
		2179	sub inv_recursive_ {
		2180	map { $_, inv_recursive_ $_->inv } @_
		2181	}
		2182
		2183	sub inv_recursive {
		2184	inv_recursive_ inv $_[0]
		2185	}
		2186
		2187	package cf;
		2188
		2189	=back
1431		2190
1432	=head3 cf::object::player	2191	=head3 cf::object::player
1433		2192
1434	=over 4	2193	=over 4
1435		2194
…		…
1449		2208
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2209	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2210
1452	if ($self->{record_replies}) {	2211	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2212	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2213
1454	} else {	2214	} else {
		2215	my $pl = $self->contr;
		2216
		2217	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2218	my $diag = $pl->{npc_dialog};
		2219	$diag->{pl}->ext_reply (
		2220	$diag->{id},
		2221	msgtype => "reply",
		2222	msg => $diag->{pl}->expand_cfpod ($msg),
		2223	add_topics => []
		2224	);
		2225
		2226	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2227	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2228	$self->message ($msg, $flags);
		2229	}
1457	}	2230	}
1458	}	2231	}
1459		2232
1460	=item $player_object->may ("access")	2233	=item $player_object->may ("access")
1461		2234
…		…
1475		2248
1476	=item $player_object->enter_link	2249	=item $player_object->enter_link
1477		2250
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2251	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2252
1480	The player should be reaosnably safe there for short amounts of time. You	2253	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	2254	I<MUST> call C<leave_link> as soon as possible, though.
1482		2255
		2256	Will never block.
		2257
1483	=item $player_object->leave_link ($map, $x, $y)	2258	=item $player_object->leave_link ($map, $x, $y)
1484		2259
1485	Moves the player out of the specila link map onto the given map. If the	2260	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2261	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2262	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2263	fails, to the emergency map position.
1489		2264
1490	Might block.	2265	Might block.
1491		2266
1492	=cut	2267	=cut
		2268
		2269	sub link_map {
		2270	unless ($LINK_MAP) {
		2271	$LINK_MAP = cf::map::find "{link}"
		2272	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2273	$LINK_MAP->load;
		2274	}
		2275
		2276	$LINK_MAP
		2277	}
1493		2278
1494	sub cf::object::player::enter_link {	2279	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2280	my ($self) = @_;
1496		2281
1497	$self->deactivate_recursive;	2282	$self->deactivate_recursive;
1498		2283
1499	return if $self->map == $LINK_MAP;	2284	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2285
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2286	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2287	if $self->map && $self->map->{path} ne "{link}";
1503		2288
1504	$self->enter_map ($LINK_MAP, 20, 20);	2289	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	2290	}
1506		2291
1507	sub cf::object::player::leave_link {	2292	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2293	my ($self, $map, $x, $y) = @_;
		2294
		2295	return unless $self->contr->active;
1509		2296
1510	my $link_pos = delete $self->{_link_pos};	2297	my $link_pos = delete $self->{_link_pos};
1511		2298
1512	unless ($map) {	2299	unless ($map) {
1513	# restore original map position	2300	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2301	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2302	$map = cf::map::find $map;
1516		2303
1517	unless ($map) {	2304	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2305	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2306	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2307	or die "FATAL: cannot load emergency map\n";
1521	}	2308	}
1522	}	2309	}
1523		2310
1524	($x, $y) = (-1, -1)	2311	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	2314	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2315	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2316	if $x <=0 && $y <= 0;
1530		2317
1531	$map->load;	2318	$map->load;
		2319	$map->load_diag;
1532		2320
		2321	return unless $self->contr->active;
1533	$self->activate_recursive;	2322	$self->activate_recursive;
		2323
		2324	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	2325	$self->enter_map ($map, $x, $y);
1535	}	2326	}
1536		2327
1537	cf::player->attach (	2328	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1538	on_logout => sub {
1539	my ($pl) = @_;
1540		2329
1541	# abort map switching before logout	2330	Moves the player to the given map-path and coordinates by first freezing
1542	if ($pl->ob->{_link_pos}) {	2331	her, loading and preparing them map, calling the provided $check callback
1543	cf::sync_job {	2332	that has to return the map if sucecssful, and then unfreezes the player on
1544	$pl->ob->leave_link	2333	the new (success) or old (failed) map position. In either case, $done will
1545	};	2334	be called at the end of this process.
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550		2335
1551	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564
1565	=item $player_object->goto_map ($path, $x, $y)
1566
1567	=cut	2336	=cut
1568		2337
		2338	our $GOTOGEN;
		2339
1569	sub cf::object::player::goto_map {	2340	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2341	my ($self, $path, $x, $y, $check, $done) = @_;
		2342
		2343	# do generation counting so two concurrent goto's will be executed in-order
		2344	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2345
1572	$self->enter_link;	2346	$self->enter_link;
1573		2347
1574	(cf::async {	2348	(async {
1575	$path = new cf::path $path;	2349	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	2350	my $map = cf::map::find $path;
		2351
		2352	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2353	$map = $map->customise_for ($self);
1579		2354	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2355	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2356	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2357	}
1584		2358
		2359	$map
		2360	};
		2361
		2362	if ($@) {
		2363	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2364	LOG llevError | logBacktrace, Carp::longmess $@;
		2365	}
		2366
		2367	if ($gen == $self->{_goto_generation}) {
		2368	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2369	$self->leave_link ($map, $x, $y);
		2370	}
		2371
		2372	$done->() if $done;
1586	})->prio (1);	2373	})->prio (1);
1587	}	2374	}
1588		2375
1589	=item $player_object->enter_exit ($exit_object)	2376	=item $player_object->enter_exit ($exit_object)
1590		2377
…		…
1592		2379
1593	sub parse_random_map_params {	2380	sub parse_random_map_params {
1594	my ($spec) = @_;	2381	my ($spec) = @_;
1595		2382
1596	my $rmp = { # defaults	2383	my $rmp = { # defaults
1597	xsize => 10,	2384	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2385	ysize => (cf::rndm 15, 40),
		2386	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2387	#layout => string,
1599	};	2388	};
1600		2389
1601	for (split /\n/, $spec) {	2390	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2391	my ($k, $v) = split /\s+/, $_, 2;
1603		2392
…		…
1607	$rmp	2396	$rmp
1608	}	2397	}
1609		2398
1610	sub prepare_random_map {	2399	sub prepare_random_map {
1611	my ($exit) = @_;	2400	my ($exit) = @_;
		2401
		2402	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2403
1613	# all this does is basically replace the /! path by	2404	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2405	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2406	# that depends on the exit object
1616		2407
1617	my $rmp = parse_random_map_params $exit->msg;	2408	my $rmp = parse_random_map_params $exit->msg;
1618		2409
1619	if ($exit->map) {	2410	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2411	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2412	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2413	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2414	$rmp->{origin_y} = $exit->y;
1624	}	2415	}
1625		2416
1626	$rmp->{random_seed} ||= $exit->random_seed;	2417	$rmp->{random_seed} ||= $exit->random_seed;
1627		2418
1628	my $data = cf::to_json $rmp;	2419	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2420	my $md5 = Digest::MD5::md5_hex $data;
		2421	my $meta = "$RANDOMDIR/$md5.meta";
1630		2422
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2423	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2424	aio_write $fh, 0, (length $data), $data, 0;
		2425	undef $fh;
		2426	aio_rename "$meta~", $meta;
1633		2427
1634	$exit->slaying ("?random/$md5");	2428	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2429	$exit->msg (undef);
1636	}	2430	}
1637	}	2431	}
…		…
1639	sub cf::object::player::enter_exit {	2433	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2434	my ($self, $exit) = @_;
1641		2435
1642	return unless $self->type == cf::PLAYER;	2436	return unless $self->type == cf::PLAYER;
1643		2437
		2438	if ($exit->slaying eq "/!") {
		2439	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2440	# the problem is that $exit might not survive long enough
		2441	# so it needs to be done right now, right here
		2442	cf::sync_job { prepare_random_map $exit };
		2443	}
		2444
		2445	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2446	my $hp = $exit->stats->hp;
		2447	my $sp = $exit->stats->sp;
		2448
1644	$self->enter_link;	2449	$self->enter_link;
1645		2450
		2451	# if exit is damned, update players death & WoR home-position
		2452	$self->contr->savebed ($slaying, $hp, $sp)
		2453	if $exit->flag (FLAG_DAMNED);
		2454
1646	(cf::async {	2455	(async {
		2456	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2457	unless (eval {
1648	prepare_random_map $exit	2458	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2459
1654	1;	2460	1;
1655	}) {	2461	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2462	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2463	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2464	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2465	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2466
1661	warn "ERROR in enter_exit: $@";	2467	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2468	$self->leave_link;
1663	}	2469	}
1664	})->prio (1);	2470	})->prio (1);
…		…
1677		2483
1678	sub cf::client::send_drawinfo {	2484	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2485	my ($self, $text, $flags) = @_;
1680		2486
1681	utf8::encode $text;	2487	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2488	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2489	}
1684		2490
		2491	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2492
		2493	Send a drawinfo or msg packet to the client, formatting the msg for the
		2494	client if neccessary. C<$type> should be a string identifying the type of
		2495	the message, with C<log> being the default. If C<$color> is negative, suppress
		2496	the message unless the client supports the msg packet.
		2497
		2498	=cut
		2499
		2500	sub cf::client::send_msg {
		2501	my ($self, $channel, $msg, $color, @extra) = @_;
		2502
		2503	$msg = $self->pl->expand_cfpod ($msg);
		2504
		2505	$color &= ~cf::NDI_UNIQUE; # just in case...
		2506
		2507	if (ref $channel) {
		2508	# send meta info to client, if not yet sent
		2509	unless (exists $self->{channel}{$channel->{id}}) {
		2510	$self->{channel}{$channel->{id}} = $channel;
		2511	$self->ext_event (channel_info => %$channel);
		2512	}
		2513
		2514	$channel = $channel->{id};
		2515	}
		2516
		2517	return unless @extra || length $msg;
		2518
		2519	if ($self->can_msg) {
		2520	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2521	} else {
		2522	# replace some tags by gcfclient-compatible ones
		2523	for ($msg) {
		2524	1 while
		2525	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2526	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2527	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2528	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2529	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2530	}
		2531
		2532	if ($color >= 0) {
		2533	if (0 && $msg =~ /\[/) {
		2534	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2535	} else {
		2536	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2537	$self->send_packet ("drawinfo $color $msg")
		2538	}
		2539	}
		2540	}
		2541	}
		2542
		2543	=item $client->ext_event ($type, %msg)
		2544
		2545	Sends an ext event to the client.
		2546
		2547	=cut
		2548
		2549	sub cf::client::ext_event($$%) {
		2550	my ($self, $type, %msg) = @_;
		2551
		2552	return unless $self->extcmd;
		2553
		2554	$msg{msgtype} = "event_$type";
		2555	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2556	}
1685		2557
1686	=item $success = $client->query ($flags, "text", \&cb)	2558	=item $success = $client->query ($flags, "text", \&cb)
1687		2559
1688	Queues a query to the client, calling the given callback with	2560	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>,	2561	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>.	2562	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2563
1692	Queries can fail, so check the return code. Or don't, as queries will become	2564	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2565	become reliable at some point in the future.
1694		2566
1695	=cut	2567	=cut
1696		2568
1697	sub cf::client::query {	2569	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2570	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2578	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2579	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2580
1709	$self->send_packet ($self->{query_queue}[0][0])	2581	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2582	if @{ $self->{query_queue} } == 1;
		2583
		2584	1
1711	}	2585	}
1712		2586
1713	cf::client->attach (	2587	cf::client->attach (
		2588	on_connect => sub {
		2589	my ($ns) = @_;
		2590
		2591	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2592	},
1714	on_reply => sub {	2593	on_reply => sub {
1715	my ($ns, $msg) = @_;	2594	my ($ns, $msg) = @_;
1716		2595
1717	# this weird shuffling is so that direct followup queries	2596	# this weird shuffling is so that direct followup queries
1718	# get handled first	2597	# get handled first
1719	my $queue = delete $ns->{query_queue}	2598	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2599	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2600
1722	(shift @$queue)->[1]->($msg);	2601	(shift @$queue)->[1]->($msg);
		2602	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2603
1724	push @{ $ns->{query_queue} }, @$queue;	2604	push @{ $ns->{query_queue} }, @$queue;
1725		2605
1726	if (@{ $ns->{query_queue} } == @$queue) {	2606	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2607	if (@$queue) {
…		…
1729	} else {	2609	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2610	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2611	}
1732	}	2612	}
1733	},	2613	},
		2614	on_exticmd => sub {
		2615	my ($ns, $buf) = @_;
		2616
		2617	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2618
		2619	if (ref $msg) {
		2620	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2621	if (my %reply = $cb->($ns, $msg)) {
		2622	$reply{msgid} = $msg->{msgid};
		2623	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2624	}
		2625	}
		2626	} else {
		2627	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2628	}
		2629
		2630	cf::override;
		2631	},
1734	);	2632	);
1735		2633
1736	=item $client->coro (\&cb)	2634	=item $client->async (\&cb)
1737		2635
1738	Create a new coroutine, running the specified callback. The coroutine will	2636	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2637	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2638	or loss of connection).
1741		2639
1742	=cut	2640	=cut
1743		2641
1744	sub cf::client::coro {	2642	sub cf::client::async {
1745	my ($self, $cb) = @_;	2643	my ($self, $cb) = @_;
1746		2644
1747	my $coro = &cf::async ($cb);	2645	my $coro = &Coro::async ($cb);
1748		2646
1749	$coro->on_destroy (sub {	2647	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2648	delete $self->{_coro}{$coro+0};
1751	});	2649	});
1752		2650
…		…
1785		2683
1786	# here we export the classes and methods available to script code	2684	# here we export the classes and methods available to script code
1787		2685
1788	=pod	2686	=pod
1789		2687
1790	The following fucntions and emthods are available within a safe environment:	2688	The following functions and methods are available within a safe environment:
1791		2689
1792	cf::object contr pay_amount pay_player map	2690	cf::object
		2691	contr pay_amount pay_player map x y force_find force_add
		2692	insert remove
		2693
1793	cf::object::player player	2694	cf::object::player
1794	cf::player peaceful	2695	player
1795	cf::map trigger	2696
		2697	cf::player
		2698	peaceful
		2699
		2700	cf::map
		2701	trigger
1796		2702
1797	=cut	2703	=cut
1798		2704
1799	for (	2705	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	2706	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2707	insert remove)],
1801	["cf::object::player" => qw(player)],	2708	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	2709	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	2710	["cf::map" => qw(trigger)],
1804	) {	2711	) {
1805	no strict 'refs';	2712	no strict 'refs';
…		…
1876	=back	2783	=back
1877		2784
1878	=cut	2785	=cut
1879		2786
1880	#############################################################################	2787	#############################################################################
		2788	# the server's init and main functions
1881		2789
1882	=head2 EXTENSION DATABASE SUPPORT	2790	sub load_facedata($) {
		2791	my ($path) = @_;
1883		2792
1884	Crossfire maintains a very simple database for extension use. It can	2793	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2794
1888	The parameter C<$family> should best start with the name of the extension	2795	my $facedata;
1889	using it, it should be unique.	2796	0 < aio_load $path, $facedata
		2797	or die "$path: $!";
1890		2798
1891	=over 4	2799	$facedata = Coro::Storable::thaw $facedata;
1892		2800
1893	=item $hashref = cf::db_get $family	2801	$facedata->{version} == 2
		2802	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2803
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	}	2804	{
		2805	my $faces = $facedata->{faceinfo};
1931		2806
1932	my $pid;	2807	while (my ($face, $info) = each %$faces) {
		2808	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2809	cf::face::set_visibility $idx, $info->{visibility};
		2810	cf::face::set_magicmap $idx, $info->{magicmap};
		2811	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2812	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1933		2813
1934	sub db_save() {	2814	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]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2815	}
1980	);
1981	}
1982		2816
1983	#############################################################################	2817	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2818	next unless $info->{smooth};
		2819	my $idx = cf::face::find $face
		2820	or next;
		2821	if (my $smooth = cf::face::find $info->{smooth}) {
		2822	cf::face::set_smooth $idx, $smooth;
		2823	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2824	} else {
		2825	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2826	}
		2827
		2828	cf::cede_to_tick;
		2829	}
		2830	}
		2831
		2832	{
		2833	my $anims = $facedata->{animinfo};
		2834
		2835	while (my ($anim, $info) = each %$anims) {
		2836	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2837	cf::cede_to_tick;
		2838	}
		2839
		2840	cf::anim::invalidate_all; # d'oh
		2841	}
		2842
		2843	{
		2844	# TODO: for gcfclient pleasure, we should give resources
		2845	# that gcfclient doesn't grok a >10000 face index.
		2846	my $res = $facedata->{resource};
		2847	my $enc = JSON::XS->new->utf8->canonical;
		2848
		2849	while (my ($name, $info) = each %$res) {
		2850	my $meta = $enc->encode ({
		2851	name => $name,
		2852	type => $info->{type},
		2853	copyright => $info->{copyright}, #TODO#
		2854	});
		2855
		2856	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2857
		2858	if ($name =~ /\.jpg$/) {
		2859	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2860	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2861	} else {
		2862	my $data = pack "(w/a*)*", $meta, $info->{data};
		2863	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2864
		2865	cf::face::set_type $idx, 1;
		2866	cf::face::set_data $idx, 0, $data, $chk;
		2867	}
		2868
		2869	cf::cede_to_tick;
		2870	}
		2871	}
		2872
		2873	1
		2874	}
		2875
		2876	sub reload_regions {
		2877	load_resource_file "$MAPDIR/regions"
		2878	or die "unable to load regions file\n";
		2879
		2880	for (cf::region::list) {
		2881	$_->{match} = qr/$_->{match}/
		2882	if exists $_->{match};
		2883	}
		2884	}
		2885
		2886	sub reload_facedata {
		2887	load_facedata "$DATADIR/facedata"
		2888	or die "unable to load facedata\n";
		2889	}
		2890
		2891	sub reload_archetypes {
		2892	load_resource_file "$DATADIR/archetypes"
		2893	or die "unable to load archetypes\n";
		2894	#d# NEED to laod twice to resolve forward references
		2895	# this really needs to be done in an extra post-pass
		2896	# (which needs to be synchronous, so solve it differently)
		2897	load_resource_file "$DATADIR/archetypes"
		2898	or die "unable to load archetypes\n";
		2899	}
		2900
		2901	sub reload_treasures {
		2902	load_resource_file "$DATADIR/treasures"
		2903	or die "unable to load treasurelists\n";
		2904	}
		2905
		2906	sub reload_resources {
		2907	warn "reloading resource files...\n";
		2908
		2909	reload_regions;
		2910	reload_facedata;
		2911	#reload_archetypes;#d#
		2912	reload_archetypes;
		2913	reload_treasures;
		2914
		2915	warn "finished reloading resource files\n";
		2916	}
		2917
		2918	sub init {
		2919	reload_resources;
		2920	}
1985		2921
1986	sub cfg_load {	2922	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2923	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2924	or return;
1989		2925
1990	local $/;	2926	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2927	*CFG = YAML::Syck::Load <$fh>;
1992		2928
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2929	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2930
		2931	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2932	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2933
1995	if (exists $CFG{mlockall}) {	2934	if (exists $CFG{mlockall}) {
1996	eval {	2935	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2936	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2937	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2938	};
2000	warn $@ if $@;	2939	warn $@ if $@;
2001	}	2940	}
2002	}	2941	}
2003		2942
2004	sub main {	2943	sub main {
2005	# we must not ever block the main coroutine	2944	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2945	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2946	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2947	(async {
2009	Event::one_event;	2948	Event::one_event;
2010	})->();	2949	})->prio (Coro::PRIO_MAX);
2011	};	2950	};
2012		2951
2013	cfg_load;	2952	cfg_load;
2014	db_load;	2953	db_init;
2015	load_extensions;	2954	load_extensions;
		2955
		2956	$TICK_WATCHER->start;
2016	Event::loop;	2957	Event::loop;
2017	}	2958	}
2018		2959
2019	#############################################################################	2960	#############################################################################
2020	# initialisation	2961	# initialisation and cleanup
2021		2962
		2963	# install some emergency cleanup handlers
		2964	BEGIN {
		2965	for my $signal (qw(INT HUP TERM)) {
		2966	Event->signal (
		2967	reentrant => 0,
		2968	data => WF_AUTOCANCEL,
		2969	signal => $signal,
		2970	prio => 0,
		2971	cb => sub {
		2972	cf::cleanup "SIG$signal";
		2973	},
		2974	);
		2975	}
		2976	}
		2977
		2978	sub write_runtime {
		2979	my $runtime = "$LOCALDIR/runtime";
		2980
		2981	# first touch the runtime file to show we are still running:
		2982	# the fsync below can take a very very long time.
		2983
		2984	IO::AIO::aio_utime $runtime, undef, undef;
		2985
		2986	my $guard = cf::lock_acquire "write_runtime";
		2987
		2988	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2989	or return;
		2990
		2991	my $value = $cf::RUNTIME + 90 + 10;
		2992	# 10 is the runtime save interval, for a monotonic clock
		2993	# 60 allows for the watchdog to kill the server.
		2994
		2995	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2996	and return;
		2997
		2998	# always fsync - this file is important
		2999	aio_fsync $fh
		3000	and return;
		3001
		3002	# touch it again to show we are up-to-date
		3003	aio_utime $fh, undef, undef;
		3004
		3005	close $fh
		3006	or return;
		3007
		3008	aio_rename "$runtime~", $runtime
		3009	and return;
		3010
		3011	warn "runtime file written.\n";
		3012
		3013	1
		3014	}
		3015
		3016	sub emergency_save() {
		3017	my $freeze_guard = cf::freeze_mainloop;
		3018
		3019	warn "enter emergency perl save\n";
		3020
		3021	cf::sync_job {
		3022	# use a peculiar iteration method to avoid tripping on perl
		3023	# refcount bugs in for. also avoids problems with players
		3024	# and maps saved/destroyed asynchronously.
		3025	warn "begin emergency player save\n";
		3026	for my $login (keys %cf::PLAYER) {
		3027	my $pl = $cf::PLAYER{$login} or next;
		3028	$pl->valid or next;
		3029	$pl->save;
		3030	}
		3031	warn "end emergency player save\n";
		3032
		3033	warn "begin emergency map save\n";
		3034	for my $path (keys %cf::MAP) {
		3035	my $map = $cf::MAP{$path} or next;
		3036	$map->valid or next;
		3037	$map->save;
		3038	}
		3039	warn "end emergency map save\n";
		3040
		3041	warn "begin emergency database checkpoint\n";
		3042	BDB::db_env_txn_checkpoint $DB_ENV;
		3043	warn "end emergency database checkpoint\n";
		3044	};
		3045
		3046	warn "leave emergency perl save\n";
		3047	}
		3048
		3049	sub post_cleanup {
		3050	my ($make_core) = @_;
		3051
		3052	warn Carp::longmess "post_cleanup backtrace"
		3053	if $make_core;
		3054	}
		3055
2022	sub reload() {	3056	sub do_reload_perl() {
2023	# can/must only be called in main	3057	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3058	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3059	warn "can only reload from main coroutine";
2026	return;	3060	return;
2027	}	3061	}
2028		3062
2029	warn "reloading...";	3063	warn "reloading...";
2030		3064
2031	local $FREEZE = 1;	3065	warn "entering sync_job";
		3066
		3067	cf::sync_job {
		3068	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	3069	cf::emergency_save;
		3070	cf::write_runtime; # external watchdog should not bark
2033		3071
2034	eval {	3072	warn "syncing database to disk";
		3073	BDB::db_env_txn_checkpoint $DB_ENV;
		3074
2035	# if anything goes wrong in here, we should simply crash as we already saved	3075	# if anything goes wrong in here, we should simply crash as we already saved
2036		3076
2037	# cancel all watchers	3077	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	3078	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3079	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	3080	}
2041		3081
		3082	warn "flushing outstanding aio requests";
		3083	for (;;) {
		3084	BDB::flush;
		3085	IO::AIO::flush;
		3086	Coro::cede;
		3087	last unless IO::AIO::nreqs || BDB::nreqs;
		3088	warn "iterate...";
		3089	}
		3090
		3091	++$RELOAD;
		3092
2042	# cancel all extension coros	3093	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3094	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3095	%EXT_CORO = ();
2045		3096
2046	# unload all extensions	3097	warn "removing commands";
2047	for (@exts) {	3098	%COMMAND = ();
		3099
		3100	warn "removing ext/exti commands";
		3101	%EXTCMD = ();
		3102	%EXTICMD = ();
		3103
		3104	warn "unloading/nuking all extensions";
		3105	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	3106	warn "... unloading $pkg";
2049	unload_extension $_;	3107
		3108	if (my $cb = $pkg->can ("unload")) {
		3109	eval {
		3110	$cb->($pkg);
		3111	1
		3112	} or warn "$pkg unloaded, but with errors: $@";
2050	}	3113	}
2051		3114
		3115	warn "... nuking $pkg";
		3116	Symbol::delete_package $pkg;
		3117	}
		3118
2052	# unload all modules loaded from $LIBDIR	3119	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	3120	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3121	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		3122
2056	warn "removing <$k>";	3123	warn "... unloading $k";
2057	delete $INC{$k};	3124	delete $INC{$k};
2058		3125
2059	$k =~ s/\.pm$//;	3126	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	3127	$k =~ s/\//::/g;
2061		3128
…		…
2064	}	3131	}
2065		3132
2066	Symbol::delete_package $k;	3133	Symbol::delete_package $k;
2067	}	3134	}
2068		3135
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3136	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3137	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3138	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3139
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3140	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3141	delete $INC{"cf.pm"};
		3142	delete $INC{"cf/pod.pm"};
2082		3143
2083	# don't, removes xs symbols, too,	3144	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3145	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3146	#Symbol::delete_package __PACKAGE__;
2086		3147
2087	# reload cf.pm	3148	warn "unload completed, starting to reload now";
		3149
2088	warn "reloading cf.pm";	3150	warn "reloading cf.pm";
2089	require cf;	3151	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3152	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3153
2092	# load config and database again	3154	warn "loading config and database again";
2093	cf::cfg_load;	3155	cf::cfg_load;
2094	cf::db_load;
2095		3156
2096	# load extensions
2097	warn "load extensions";	3157	warn "loading extensions";
2098	cf::load_extensions;	3158	cf::load_extensions;
2099		3159
2100	# reattach attachments to objects	3160	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3161	_global_reattach; # objects, sockets
2102	_global_reattach;	3162	warn "reattaching attachments to maps";
2103	};	3163	reattach $_ for values %MAP;
		3164	warn "reattaching attachments to players";
		3165	reattach $_ for values %PLAYER;
2104		3166
2105	if ($@) {	3167	warn "leaving sync_job";
		3168
		3169	1
		3170	} or do {
2106	warn $@;	3171	warn $@;
2107	warn "error while reloading, exiting.";	3172	warn "error while reloading, exiting.";
2108	exit 1;	3173	exit 1;
2109	}	3174	};
2110		3175
2111	warn "reloaded successfully";	3176	warn "reloaded";
2112	};	3177	};
2113		3178
2114	#############################################################################	3179	our $RELOAD_WATCHER; # used only during reload
2115		3180
2116	unless ($LINK_MAP) {	3181	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3182	# doing reload synchronously and two reloads happen back-to-back,
		3183	# coro crashes during coro_state_free->destroy here.
2118		3184
2119	$LINK_MAP->width (41);	3185	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3186	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,	3187	after => 0,
		3188	data => WF_AUTOCANCEL,
2129	cb => sub {	3189	cb => sub {
2130	$_[0]->w->cancel;	3190	do_reload_perl;
2131		3191	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	});	3192	},
2150		3193	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3194	}
2156
2157	register "<global>", __PACKAGE__;
2158		3195
2159	register_command "reload" => sub {	3196	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3197	my ($who, $arg) = @_;
2161		3198
2162	if ($who->flag (FLAG_WIZ)) {	3199	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3200	$who->message ("reloading server.");
		3201	async { reload_perl };
2166	}	3202	}
2167	};	3203	};
2168		3204
2169	unshift @INC, $LIBDIR;	3205	unshift @INC, $LIBDIR;
2170		3206
		3207	my $bug_warning = 0;
		3208
		3209	our @WAIT_FOR_TICK;
		3210	our @WAIT_FOR_TICK_BEGIN;
		3211
		3212	sub wait_for_tick {
		3213	return unless $TICK_WATCHER->is_active;
		3214	return if $Coro::current == $Coro::main;
		3215
		3216	my $signal = new Coro::Signal;
		3217	push @WAIT_FOR_TICK, $signal;
		3218	$signal->wait;
		3219	}
		3220
		3221	sub wait_for_tick_begin {
		3222	return unless $TICK_WATCHER->is_active;
		3223	return if $Coro::current == $Coro::main;
		3224
		3225	my $signal = new Coro::Signal;
		3226	push @WAIT_FOR_TICK_BEGIN, $signal;
		3227	$signal->wait;
		3228	}
		3229
		3230	my $min = 1e6;#d#
		3231	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3232	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3233	reentrant => 0,
		3234	parked => 1,
2173	prio => 0,	3235	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3236	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3237	data => WF_AUTOCANCEL,
2176	cb => sub {	3238	cb => sub {
2177	unless ($FREEZE) {	3239	if ($Coro::current != $Coro::main) {
		3240	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3241	unless ++$bug_warning > 10;
		3242	return;
		3243	}
		3244
		3245	$NOW = $tick_start = Event::time;
		3246
2178	cf::server_tick; # one server iteration	3247	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;	3248
		3249	0 && sync_job {#d#
		3250	for(1..10) {
		3251	my $t = Event::time;
		3252	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3253	or die;
		3254
		3255	$map->width (50);
		3256	$map->height (50);
		3257	$map->alloc;
		3258	$map->_load_objects ("/tmp/x.map", 1);
		3259	my $t = Event::time - $t;
		3260
		3261	#next unless $t < 0.0013;#d#
		3262	if ($t < $min) {
		3263	$min = $t;
		3264	}
		3265	$avg = $avg * 0.99 + $t * 0.01;
		3266	}
		3267	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3268	exit 0;
		3269	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2180	}	3270	};
2181		3271
		3272	$RUNTIME += $TICK;
2182	$NEXT_TICK += $TICK;	3273	$NEXT_TICK += $TICK;
2183		3274
		3275	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3276	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3277	Coro::async_pool {
		3278	write_runtime
		3279	or warn "ERROR: unable to write runtime file: $!";
		3280	};
		3281	}
		3282
		3283	# my $AFTER = Event::time;
		3284	# warn $AFTER - $NOW;#d#
		3285
		3286	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3287	$sig->send;
		3288	}
		3289	while (my $sig = shift @WAIT_FOR_TICK) {
		3290	$sig->send;
		3291	}
		3292
		3293	$NOW = Event::time;
		3294
2184	# if we are delayed by four ticks or more, skip them all	3295	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3296	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2186		3297
2187	$TICK_WATCHER->at ($NEXT_TICK);	3298	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;	3299	$TICK_WATCHER->start;
		3300
		3301	$LOAD = ($NOW - $tick_start) / $TICK;
		3302	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3303
		3304	_post_tick;
		3305
		3306
2189	},	3307	},
2190	);	3308	);
2191		3309
		3310	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	3311	BDB::max_poll_time $TICK * 0.1;
2193		3312	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	3313	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	3314	fd => BDB::poll_fileno,
2196	poll => 'r',	3315	poll => 'r',
2197	prio => 5,	3316	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	3317	data => WF_AUTOCANCEL,
2204	after => 0,	3318	cb => \&BDB::poll_cb,
2205	interval => 10,	3319	);
2206	cb => sub {	3320	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	3321
2208	write_runtime	3322	BDB::set_sync_prepare {
2209	or warn "ERROR: unable to write runtime file: $!";	3323	my $status;
		3324	my $current = $Coro::current;
		3325	(
		3326	sub {
		3327	$status = $!;
		3328	$current->ready; undef $current;
		3329	},
		3330	sub {
		3331	Coro::schedule while defined $current;
		3332	$! = $status;
		3333	},
		3334	)
		3335	};
		3336
		3337	unless ($DB_ENV) {
		3338	$DB_ENV = BDB::db_env_create;
		3339
		3340	cf::sync_job {
		3341	eval {
		3342	BDB::db_env_open
		3343	$DB_ENV,
		3344	$BDBDIR,
		3345	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3346	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3347	0666;
		3348
		3349	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3350
		3351	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3352	$DB_ENV->set_lk_detect;
		3353	};
		3354
		3355	cf::cleanup "db_env_open(db): $@" if $@;
2210	})->();	3356	};
2211	},	3357	}
2212	);	3358	}
		3359
		3360	{
		3361	IO::AIO::min_parallel 8;
		3362
		3363	undef $Coro::AIO::WATCHER;
		3364	IO::AIO::max_poll_time $TICK * 0.1;
		3365	$AIO_POLL_WATCHER = Event->io (
		3366	reentrant => 0,
		3367	data => WF_AUTOCANCEL,
		3368	fd => IO::AIO::poll_fileno,
		3369	poll => 'r',
		3370	prio => 6,
		3371	cb => \&IO::AIO::poll_cb,
		3372	);
		3373	}
		3374
		3375	my $_log_backtrace;
		3376
		3377	sub _log_backtrace {
		3378	my ($msg, @addr) = @_;
		3379
		3380	$msg =~ s/\n//;
		3381
		3382	# limit the # of concurrent backtraces
		3383	if ($_log_backtrace < 2) {
		3384	++$_log_backtrace;
		3385	async {
		3386	my @bt = fork_call {
		3387	@addr = map { sprintf "%x", $_ } @addr;
		3388	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3389	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3390	or die "addr2line: $!";
		3391
		3392	my @funcs;
		3393	my @res = <$fh>;
		3394	chomp for @res;
		3395	while (@res) {
		3396	my ($func, $line) = splice @res, 0, 2, ();
		3397	push @funcs, "[$func] $line";
		3398	}
		3399
		3400	@funcs
		3401	};
		3402
		3403	LOG llevInfo, "[ABT] $msg\n";
		3404	LOG llevInfo, "[ABT] $_\n" for @bt;
		3405	--$_log_backtrace;
		3406	};
		3407	} else {
		3408	LOG llevInfo, "[ABT] $msg\n";
		3409	LOG llevInfo, "[ABT] [suppressed]\n";
		3410	}
		3411	}
		3412
		3413	# load additional modules
		3414	use cf::pod;
2213		3415
2214	END { cf::emergency_save }	3416	END { cf::emergency_save }
2215		3417
2216	1	3418	1
2217		3419

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