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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.328 by root, Wed Aug 8 06:24:30 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 ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		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
27	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
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# 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?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # 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
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	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(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	79	our $NEXT_TICK;
50	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;
51		85
52	our %CFG;	86	our %CFG;
53		87
54	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	89	our $RUNTIME;
56		90
57	our %PLAYER; # all users	91	our %PLAYER; # all users
58	our %MAP; # all maps	92	our %MAP; # all maps
59	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		94
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	95	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	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 $tick_start; # for load detecting purposes
64		101
65	binmode STDOUT;	102	binmode STDOUT;
66	binmode STDERR;	103	binmode STDERR;
67		104
68	# read virtual server time, if available	105	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
73	}	110	}
74		111
75	mkdir cf::localdir;	112	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		114
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
84		118
85	#############################################################################	119	#############################################################################
86		120
87	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
88		122
…		…
95	=item $cf::RUNTIME	129	=item $cf::RUNTIME
96		130
97	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
98	every server tick.	132	every server tick.
99		133
100	=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
101		137
102	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
103	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.
104		142
105	=item $cf::NOW	143	=item $cf::NOW
106		144
107	The time of the last (current) server tick.	145	The time of the last (current) server tick.
108		146
109	=item $cf::TICK	147	=item $cf::TICK
110		148
111	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.
112		160
113	=item %cf::CFG	161	=item %cf::CFG
114		162
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	164	from wherever your confdir points to.
117		165
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		167
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	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.
124		177
125	=back	178	=back
126		179
127	=cut	180	=cut
128		181
129	BEGIN {	182	BEGIN {
130	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	184	my $msg = join "", @_;
132	utf8::encode $msg;
133		185
134	$msg .= "\n"	186	$msg .= "\n"
135	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
136		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
137	LOG llevError, $msg;	192	LOG llevError, $msg;
138	};	193	};
139	}	194	}
140		195
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@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';
146	@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)
147		203
148	# 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
149	# within the Safe compartment.	205	# within the Safe compartment.
150	for my $pkg (qw(	206	for my $pkg (qw(
151	cf::global cf::attachable	207	cf::global cf::attachable
…		…
159	}	215	}
160		216
161	$Event::DIED = sub {	217	$Event::DIED = sub {
162	warn "error in event callback: @_";	218	warn "error in event callback: @_";
163	};	219	};
		220
		221	#############################################################################
164		222
165	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
166		224
167	=over 4	225	=over 4
168		226
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	246	$d
189	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
190	}	248	}
191		249
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
195		251
196	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
197		253
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
206		255
207	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
208		257
209	=cut	258	=cut
210		259
211	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
213	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
214	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
215		264
216	=item cf::lock_wait $string	265	=item cf::lock_wait $string
217		266
218	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
219		268
…		…
225	returned.	274	returned.
226		275
227	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
229		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
230	=cut	283	=cut
231		284
232	our %LOCK;	285	our %LOCK;
233		286
234	sub lock_wait($) {	287	sub lock_wait($) {
…		…
253	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
255	}	308	}
256	}	309	}
257		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
258	sub freeze_mainloop {	317	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
260		319
261	my $guard = Coro::guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
262	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
263	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
264	}	381	}
265		382
266	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
267		384
268	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		390
274	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
275		392
276	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
277		394
278	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
281		399
282	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
285	fast or be very important.	403	fast or be very important.
…		…
288		406
289	sub sync_job(&) {	407	sub sync_job(&) {
290	my ($job) = @_;	408	my ($job) = @_;
291		409
292	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
293	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
295		415
296	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
308		428
309	while ($busy) {	429	while ($busy) {
310	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
311	}	431	}
312		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
313	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
314	} else {	441	} else {
315	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
316		443
317	$job->()	444	$job->()
…		…
336	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
337		464
338	$coro	465	$coro
339	}	466	}
340		467
341	sub write_runtime {	468	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		469
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
345	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
346		474
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		476
351	aio_fsync $fh	477	sub _store_scalar {
352	and return;	478	open my $fh, ">", \my $buf
353		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
354	close $fh	481	close $fh;
355	or return;
356		482
357	aio_rename "$runtime~", $runtime	483	$buf
358	and return;	484	}
359		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
360	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	655	}
362		656
363	=back	657	=back
364		658
365	=cut	659	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		660
543	#############################################################################	661	#############################################################################
544		662
545	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
546		664
…		…
548	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
549	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
550		668
551	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
552	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
553	crossfire+).	671	Crossfire TRT).
554		672
555	=over 4	673	=over 4
556		674
557	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
558		676
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	791	our @CB_MAP = ();
674		792
675	my %attachment;	793	my %attachment;
676		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
677	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
679		803
680	use sort 'stable';	804	use sort 'stable';
681		805
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
716		840
717	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		845
722	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	847	my $pkg = shift @arg;
724		848
725	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
754	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
755	}	879	}
756		880
757	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
758	} else {	882	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
760	}	884	}
761		885
762	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
763	}	887	}
764		888
…		…
766	if (ref $_[0]) {	890	if (ref $_[0]) {
767	_object_attach @_;	891	_object_attach @_;
768	} else {	892	} else {
769	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
770	}	894	}
		895	_recalc_want;
771	};	896	};
772		897
773	# all those should be optimised	898	# all those should be optimised
774	sub cf::attachable::detach {	899	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
779	reattach ($obj);	904	reattach ($obj);
780	} else {	905	} else {
781	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
782	}	907	}
		908	_recalc_want;
783	};	909	};
784		910
785	sub cf::attachable::attached {	911	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
787		913
…		…
802	";	928	";
803	die if $@;	929	die if $@;
804	}	930	}
805		931
806	our $override;	932	our $override;
807	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
808		934
809	sub override {	935	sub override {
810	$override = 1;	936	$override = 1;
811	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
812	}	938	}
813		939
814	sub do_invoke {	940	sub do_invoke {
815	my $event = shift;	941	my $event = shift;
816	my $callbacks = shift;	942	my $callbacks = shift;
817		943
818	@invoke_results = ();	944	@INVOKE_RESULTS = ();
819		945
820	local $override;	946	local $override;
821		947
822	for (@$callbacks) {	948	for (@$callbacks) {
823	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
840		966
841	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
842		968
843	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
844	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
845	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		972
847	=back	973	=back
848		974
849	=cut	975	=cut
850		976
851	#############################################################################	977	#############################################################################
852	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
853		990
854	sub reattach {	991	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		996
858	my $registry = $obj->registry;	997	my $registry = $obj->registry;
859		998
860	@$registry = ();	999	@$registry = ();
861		1000
…		…
908	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
909		1048
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	1053	close $fh;
915		1054
916	if (@$objs) {	1055	if (@$objs) {
917	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
918	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	1061	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
924	}	1063	}
925	} else {	1064	} else {
926	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
958	or return;	1097	or return;
959	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
960	}	1099	}
961		1100
962	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
964	return ($data, $av);	1103	return ($data, $av);
965	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
966		1111
967	#############################################################################	1112	#############################################################################
968	# command handling &c	1113	# command handling &c
969		1114
970	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1129	}
985		1130
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1132
988	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
989		1138
990	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
991	called.	1140	called.
992		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
993	=cut	1153	=cut
994		1154
995	sub register_extcmd {	1155	sub register_extcmd {
996	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
997		1157
998	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
999	}	1165	}
1000		1166
1001	cf::player->attach (	1167	cf::player->attach (
1002	on_command => sub {	1168	on_command => sub {
1003	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
1012	cf::override;	1178	cf::override;
1013	},	1179	},
1014	on_extcmd => sub {	1180	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
1016		1182
1017	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1184
1019	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
1022	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
1023	}	1195	if $reply;
1024	}	1196	}
1025	} else {	1197	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1199	}
1028		1200
1029	cf::override;	1201	cf::override;
1030	},	1202	},
1031	);	1203	);
1032		1204
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
1061	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1210	next unless -r $path;
1063	eval {	1211
1064	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
1065	1	1269	}
1066	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
1067	}	1275	};
1068	}	1276	}
1069		1277
1070	#############################################################################	1278	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1279
1073	*cf::mapsupport::on_clean = sub {	1280	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1281
1086	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
1087		1283
1088	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
1089		1285
…		…
1102	Returns the given player object, loading it if necessary (might block).	1298	Returns the given player object, loading it if necessary (might block).
1103		1299
1104	=cut	1300	=cut
1105		1301
1106	sub playerdir($) {	1302	sub playerdir($) {
1107	cf::localdir	1303	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1305	}
1113		1306
1114	sub path($) {	1307	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1309
1117	(playerdir $login) . "/$login.pl"	1310	(playerdir $login) . "/playerdata"
1118	}	1311	}
1119		1312
1120	sub find_active($) {	1313	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1314	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1315	and $cf::PLAYER{$_[0]}->active
…		…
1125		1318
1126	sub exists($) {	1319	sub exists($) {
1127	my ($login) = @_;	1320	my ($login) = @_;
1128		1321
1129	$cf::PLAYER{$login}	1322	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1323	or cf::sync_job { !aio_stat path $login }
1131	}	1324	}
1132		1325
1133	sub find($) {	1326	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1327	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1328	my $login = $_[0];
1136		1329
1137	my $guard = cf::lock_acquire "user_find:$login";	1330	my $guard = cf::lock_acquire "user_find:$login";
1138		1331
1139	$cf::PLAYER{$_[0]} || do {	1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
1140	my $pl = load_pl path $login	1340	my $pl = load_pl path $login
1141	or return;	1341	or return;
1142	$cf::PLAYER{$login} = $pl	1342	$cf::PLAYER{$login} = $pl
1143	}	1343	}
1144	}	1344	}
…		…
1181		1381
1182	=cut	1382	=cut
1183		1383
1184	sub quit_character {	1384	sub quit_character {
1185	my ($pl) = @_;	1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
1186		1388
1187	$pl->{deny_save} = 1;	1389	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
1189		1391
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1397	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1398	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1399	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1400	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
1200	IO::AIO::aio_rmtree $temp;	1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
1201	}	1423	}
1202		1424
1203	=item cf::player::list_logins	1425	=item cf::player::list_logins
1204		1426
1205	Returns am arrayref of all valid playernames in the system, can take a	1427	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1428	while and may block, so not sync_job-capable, ever.
1207		1429
1208	=cut	1430	=cut
1209		1431
1210	sub list_logins {	1432	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1433	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1434	or return [];
1213		1435
1214	my @logins;	1436	my @logins;
1215		1437
1216	for my $login (@$dirs) {	1438	for my $login (@$dirs) {
…		…
1225	\@logins	1447	\@logins
1226	}	1448	}
1227		1449
1228	=item $player->maps	1450	=item $player->maps
1229		1451
1230	Returns an arrayref of cf::path's of all maps that are private for this	1452	Returns an arrayref of map paths that are private for this
1231	player. May block.	1453	player. May block.
1232		1454
1233	=cut	1455	=cut
1234		1456
1235	sub maps($) {	1457	sub maps($) {
1236	my ($pl) = @_;	1458	my ($pl) = @_;
		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1461
1238	my $files = aio_readdir playerdir $pl	1462	my $files = aio_readdir playerdir $pl
1239	or return;	1463	or return;
1240		1464
1241	my @paths;	1465	my @paths;
…		…
1243	for (@$files) {	1467	for (@$files) {
1244	utf8::decode $_;	1468	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1469	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1470	next unless /^$PATH_SEP/o;
1247		1471
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1472	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1473	}
1250		1474
1251	\@paths	1475	\@paths
1252	}	1476	}
1253		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1528	=item $player->ext_reply ($msgid, @msg)
1255		1529
1256	Sends an ext reply to the player.	1530	Sends an ext reply to the player.
1257		1531
1258	=cut	1532	=cut
1259		1533
1260	sub ext_reply($$$%) {	1534	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1535	my ($self, $id, @msg) = @_;
1262		1536
1263	$msg{msgid} = $id;	1537	if ($self->ns->extcmd == 2) {
1264		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1265	$self->send ("ext " . cf::to_json \%msg);	1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
1266	}	1544	}
1267		1545
1268	package cf;	1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
		1573	my ($path) = @_;
		1574
		1575	my ($match, $specificity);
		1576
		1577	for my $region (list) {
		1578	if ($region->{match} && $path =~ $region->{match}) {
		1579	($match, $specificity) = ($region, $region->specificity)
		1580	if $region->specificity > $specificity;
		1581	}
		1582	}
		1583
		1584	$match
		1585	}
1269		1586
1270	=back	1587	=back
1271
1272		1588
1273	=head3 cf::map	1589	=head3 cf::map
1274		1590
1275	=over 4	1591	=over 4
1276		1592
…		…
1279	package cf::map;	1595	package cf::map;
1280		1596
1281	use Fcntl;	1597	use Fcntl;
1282	use Coro::AIO;	1598	use Coro::AIO;
1283		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
1284	our $MAX_RESET = 3600;	1604	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1605	our $DEFAULT_RESET = 3000;
1286		1606
1287	sub generate_random_map {	1607	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1608	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1609	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1610	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1614	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1615	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1621	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1622	)
1305	}	1623	}
1306		1624
		1625	=item cf::map->register ($regex, $prio)
		1626
		1627	Register a handler for the map path matching the given regex at the
		1628	givne priority (higher is better, built-in handlers have priority 0, the
		1629	default).
		1630
		1631	=cut
		1632
		1633	sub register {
		1634	my (undef, $regex, $prio) = @_;
		1635	my $pkg = caller;
		1636
		1637	no strict;
		1638	push @{"$pkg\::ISA"}, __PACKAGE__;
		1639
		1640	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1641	}
		1642
		1643	# also paths starting with '/'
		1644	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1645
		1646	sub thawer_merge {
		1647	my ($self, $merge) = @_;
		1648
		1649	# we have to keep some variables in memory intact
		1650	local $self->{path};
		1651	local $self->{load_path};
		1652
		1653	$self->SUPER::thawer_merge ($merge);
		1654	}
		1655
		1656	sub normalise {
		1657	my ($path, $base) = @_;
		1658
		1659	$path = "$path"; # make sure its a string
		1660
		1661	$path =~ s/\.map$//;
		1662
		1663	# map plan:
		1664	#
		1665	# /! non-realised random map exit (special hack!)
		1666	# {... are special paths that are not being touched
		1667	# ?xxx/... are special absolute paths
		1668	# ?random/... random maps
		1669	# /... normal maps
		1670	# ~user/... per-player map of a specific user
		1671
		1672	$path =~ s/$PATH_SEP/\//go;
		1673
		1674	# treat it as relative path if it starts with
		1675	# something that looks reasonable
		1676	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1677	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1678
		1679	$base =~ s{[^/]+/?$}{};
		1680	$path = "$base/$path";
		1681	}
		1682
		1683	for ($path) {
		1684	redo if s{//}{/};
		1685	redo if s{/\.?/}{/};
		1686	redo if s{/[^/]+/\.\./}{/};
		1687	}
		1688
		1689	$path
		1690	}
		1691
		1692	sub new_from_path {
		1693	my (undef, $path, $base) = @_;
		1694
		1695	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1696
		1697	$path = normalise $path, $base;
		1698
		1699	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1700	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1701	my $self = bless cf::map::new, $pkg;
		1702	$self->{path} = $path; $self->path ($path);
		1703	$self->init; # pass $1 etc.
		1704	return $self;
		1705	}
		1706	}
		1707
		1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1709	()
		1710	}
		1711
		1712	sub init {
		1713	my ($self) = @_;
		1714
		1715	$self
		1716	}
		1717
		1718	sub as_string {
		1719	my ($self) = @_;
		1720
		1721	"$self->{path}"
		1722	}
		1723
		1724	# the displayed name, this is a one way mapping
		1725	sub visible_name {
		1726	&as_string
		1727	}
		1728
		1729	# the original (read-only) location
		1730	sub load_path {
		1731	my ($self) = @_;
		1732
		1733	"$MAPDIR/$self->{path}.map"
		1734	}
		1735
		1736	# the temporary/swap location
		1737	sub save_path {
		1738	my ($self) = @_;
		1739
		1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1741	"$TMPDIR/$path.map"
		1742	}
		1743
		1744	# the unique path, undef == no special unique path
		1745	sub uniq_path {
		1746	my ($self) = @_;
		1747
		1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1749	"$UNIQUEDIR/$path"
		1750	}
		1751
1307	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1308	# all maps in C++...	1753	# all maps in C++...
1309	sub change_all_map_light {	1754	sub change_all_map_light {
1310	my ($change) = @_;	1755	my ($change) = @_;
1311		1756
1312	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1314	}	1759	}
1315		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
		1769	sub unlink_save {
		1770	my ($self) = @_;
		1771
		1772	utf8::encode (my $save = $self->save_path);
		1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1775	}
		1776
1316	sub load_map_header($) {	1777	sub load_header_from($) {
1317	my ($path) = @_;	1778	my ($self, $path) = @_;
1318		1779
1319	utf8::encode $path;	1780	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
1321	or return;	1785	or return;
1322		1786
1323	my $map = cf::map::new	1787	$self->{load_path} = $path;
		1788
		1789	1
		1790	}
		1791
		1792	sub load_header_orig {
		1793	my ($self) = @_;
		1794
		1795	$self->load_header_from ($self->load_path)
		1796	}
		1797
		1798	sub load_header_temp {
		1799	my ($self) = @_;
		1800
		1801	$self->load_header_from ($self->save_path)
		1802	}
		1803
		1804	sub prepare_temp {
		1805	my ($self) = @_;
		1806
		1807	$self->last_access ((delete $self->{last_access})
		1808	|| $cf::RUNTIME); #d#
		1809	# safety
		1810	$self->{instantiate_time} = $cf::RUNTIME
		1811	if $self->{instantiate_time} > $cf::RUNTIME;
		1812	}
		1813
		1814	sub prepare_orig {
		1815	my ($self) = @_;
		1816
		1817	$self->{load_original} = 1;
		1818	$self->{instantiate_time} = $cf::RUNTIME;
		1819	$self->last_access ($cf::RUNTIME);
		1820	$self->instantiate;
		1821	}
		1822
		1823	sub load_header {
		1824	my ($self) = @_;
		1825
		1826	if ($self->load_header_temp) {
		1827	$self->prepare_temp;
		1828	} else {
		1829	$self->load_header_orig
1324	or return;	1830	or return;
		1831	$self->prepare_orig;
		1832	}
1325		1833
1326	# for better error messages only, will be overwritten later	1834	$self->{deny_reset} = 1
1327	$map->path ($path);	1835	if $self->no_reset;
1328		1836
1329	$map->load_header ($path)	1837	$self->default_region (cf::region::find_by_path $self->{path})
1330	or return;	1838	unless $self->default_region;
1331		1839
1332	$map->{load_path} = $path;	1840	1
1333
1334	$map
1335	}	1841	}
1336		1842
1337	sub find;	1843	sub find;
1338	sub find {	1844	sub find {
1339	my ($path, $origin) = @_;	1845	my ($path, $origin) = @_;
1340		1846
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1847	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1848
1346	cf::lock_wait "map_find:$key";	1849	cf::lock_wait "map_find:$path";
1347		1850
1348	$cf::MAP{$key} || do {	1851	$cf::MAP{$path} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	1852	my $guard = cf::lock_acquire "map_find:$path";
1350		1853	my $map = new_from_path cf::map $path
1351	# do it the slow way
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	1854	or return;
1365		1855
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1378		1857
1379	Coro::cede;	1858	$map->load_header
		1859	or return;
1380		1860
1381	if ($map->should_reset) {	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1862	# doing this can freeze the server in a sync job, obviously
		1863	#$cf::WAIT_FOR_TICK->wait;
1382	$map->reset;	1864	$map->reset;
1383	undef $guard;	1865	undef $guard;
1384	$map = find $path	1866	return find $path;
1385	or return;
1386	}	1867	}
1387		1868
1388	$cf::MAP{$key} = $map	1869	$cf::MAP{$path} = $map
1389	}	1870	}
1390	}	1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
1391		1875
1392	sub load {	1876	sub load {
1393	my ($self) = @_;	1877	my ($self) = @_;
1394		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
1395	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1884	my $guard = cf::lock_acquire "map_load:$path";
1397		1885
1398	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1399		1887
1400	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1401		1889
1402	$self->alloc;	1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
1403	$self->load_objects ($self->{load_path}, 1)	1895	$self->_load_objects ($self->{load_path}, 1)
1404	or return;	1896	or return;
1405		1897
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	1899	if delete $self->{load_original};
1408		1900
1409	if (my $uniq = $path->uniq_path) {	1901	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	1902	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	1903	if (aio_open $uniq, O_RDONLY, 0) {
1412	$self->clear_unique_items;	1904	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	1905	$self->_load_objects ($uniq, 0);
1414	}	1906	}
1415	}	1907	}
1416		1908
1417	Coro::cede;	1909	Coro::cede;
1418
1419	# now do the right thing for maps	1910	# now do the right thing for maps
1420	$self->link_multipart_objects;	1911	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	1913	unless $self->difficulty;
		1914	Coro::cede;
		1915
		1916	unless ($self->{deny_activate}) {
		1917	$self->decay_objects;
		1918	$self->fix_auto_apply;
		1919	$self->update_buttons;
		1920	Coro::cede;
		1921	$self->set_darkness_map;
		1922	Coro::cede;
1432	$self->activate;	1923	$self->activate;
1433	}	1924	}
1434		1925
1435	Coro::cede;	1926	$self->{last_save} = $cf::RUNTIME;
		1927	$self->last_access ($cf::RUNTIME);
1436		1928
1437	$self->in_memory (cf::MAP_IN_MEMORY);	1929	$self->in_memory (cf::MAP_IN_MEMORY);
		1930	}
		1931
		1932	$self->post_load;
		1933	}
		1934
		1935	sub customise_for {
		1936	my ($self, $ob) = @_;
		1937
		1938	return find "~" . $ob->name . "/" . $self->{path}
		1939	if $self->per_player;
		1940
		1941	# return find "?party/" . $ob->name . "/" . $self->{path}
		1942	# if $self->per_party;
		1943
		1944	$self
1438	}	1945	}
1439		1946
1440	# find and load all maps in the 3x3 area around a map	1947	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	1948	sub load_diag {
1442	my ($map) = @_;	1949	my ($map) = @_;
…		…
1472		1979
1473	cf::sync_job { $map->load };	1980	cf::sync_job { $map->load };
1474	}	1981	}
1475		1982
1476	our %MAP_PREFETCH;	1983	our %MAP_PREFETCH;
1477	our $MAP_PREFETCHER = Coro::async {	1984	our $MAP_PREFETCHER = undef;
1478	while () {
1479	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH
1481	or next;
1482	my $path = delete $MAP_PREFETCH{$key};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}
1488	Coro::schedule;
1489	}
1490	};
1491		1985
1492	sub find_async {	1986	sub find_async {
1493	my ($path, $origin) = @_;	1987	my ($path, $origin) = @_;
1494		1988
1495	$path = new cf::path $path, $origin && $origin->path;	1989	$path = normalise $path, $origin && $origin->{path};
1496	my $key = $path->as_string;
1497		1990
1498	if (my $map = $cf::MAP{$key}) {	1991	if (my $map = $cf::MAP{$path}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	1992	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}	1993	}
1501		1994
1502	$MAP_PREFETCH{$key} = $path;	1995	undef $MAP_PREFETCH{$path};
		1996	$MAP_PREFETCHER ||= cf::async {
		1997	while (%MAP_PREFETCH) {
		1998	for my $path (keys %MAP_PREFETCH) {
		1999	if (my $map = find $path) {
		2000	$map->load;
		2001	}
		2002
		2003	delete $MAP_PREFETCH{$path};
		2004	}
		2005	}
		2006	undef $MAP_PREFETCHER;
		2007	};
1503	$MAP_PREFETCHER->ready;	2008	$MAP_PREFETCHER->prio (6);
1504		2009
1505	()	2010	()
1506	}	2011	}
1507		2012
1508	sub save {	2013	sub save {
…		…
1512		2017
1513	$self->{last_save} = $cf::RUNTIME;	2018	$self->{last_save} = $cf::RUNTIME;
1514		2019
1515	return unless $self->dirty;	2020	return unless $self->dirty;
1516		2021
1517	my $save = $self->{path}->save_path; utf8::encode $save;	2022	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2023	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		2024
1520	$self->{load_path} = $save;	2025	$self->{load_path} = $save;
1521		2026
1522	return if $self->{deny_save};	2027	return if $self->{deny_save};
1523		2028
…		…
1526	cf::async {	2031	cf::async {
1527	$_->contr->save for $self->players;	2032	$_->contr->save for $self->players;
1528	};	2033	};
1529		2034
1530	if ($uniq) {	2035	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	2037	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	2038	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2039	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	2040	}
1536	}	2041	}
1537		2042
1538	sub swap_out {	2043	sub swap_out {
1539	my ($self) = @_;	2044	my ($self) = @_;
…		…
1553		2058
1554	sub reset_at {	2059	sub reset_at {
1555	my ($self) = @_;	2060	my ($self) = @_;
1556		2061
1557	# TODO: safety, remove and allow resettable per-player maps	2062	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2063	return 1e99 if $self->{deny_reset};
1560		2064
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2065	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2066	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2067
…		…
1568	my ($self) = @_;	2072	my ($self) = @_;
1569		2073
1570	$self->reset_at <= $cf::RUNTIME	2074	$self->reset_at <= $cf::RUNTIME
1571	}	2075	}
1572		2076
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2077	sub reset {
1587	my ($self) = @_;	2078	my ($self) = @_;
1588		2079
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2080	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2081
1591	return if $self->players;	2082	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2083
1594	warn "resetting map ", $self->path;#d#	2084	warn "resetting map ", $self->path;
		2085
		2086	$self->in_memory (cf::MAP_SWAPPED);
		2087
		2088	# need to save uniques path
		2089	unless ($self->{deny_save}) {
		2090	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2091
		2092	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2093	if $uniq;
		2094	}
1595		2095
1596	delete $cf::MAP{$self->path};	2096	delete $cf::MAP{$self->path};
1597		2097
		2098	$self->clear;
		2099
1598	$_->clear_links_to ($self) for values %cf::MAP;	2100	$_->clear_links_to ($self) for values %cf::MAP;
1599		2101
1600	$self->{path}->unlink_save;	2102	$self->unlink_save;
1601	$self->destroy;	2103	$self->destroy;
1602	}	2104	}
1603		2105
1604	my $nuke_counter = "aaaa";	2106	my $nuke_counter = "aaaa";
1605		2107
1606	sub nuke {	2108	sub nuke {
1607	my ($self) = @_;	2109	my ($self) = @_;
1608		2110
		2111	delete $cf::MAP{$self->path};
		2112
		2113	$self->unlink_save;
		2114
		2115	bless $self, "cf::map";
		2116	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2117	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2118	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2119	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2120
		2121	$cf::MAP{$self->path} = $self;
		2122
1612	$self->reset; # polite request, might not happen	2123	$self->reset; # polite request, might not happen
1613	}	2124	}
1614		2125
		2126	=item $maps = cf::map::tmp_maps
		2127
		2128	Returns an arrayref with all map paths of currently instantiated and saved
		2129	maps. May block.
		2130
		2131	=cut
		2132
		2133	sub tmp_maps() {
		2134	[
		2135	map {
		2136	utf8::decode $_;
		2137	/\.map$/
		2138	? normalise $_
		2139	: ()
		2140	} @{ aio_readdir $TMPDIR or [] }
		2141	]
		2142	}
		2143
		2144	=item $maps = cf::map::random_maps
		2145
		2146	Returns an arrayref with all map paths of currently instantiated and saved
		2147	random maps. May block.
		2148
		2149	=cut
		2150
		2151	sub random_maps() {
		2152	[
		2153	map {
		2154	utf8::decode $_;
		2155	/\.map$/
		2156	? normalise "?random/$_"
		2157	: ()
		2158	} @{ aio_readdir $RANDOMDIR or [] }
		2159	]
		2160	}
		2161
1615	=item cf::map::unique_maps	2162	=item cf::map::unique_maps
1616		2163
1617	Returns an arrayref of cf::path's of all shared maps that have	2164	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2165	instantiated unique items. May block.
1619		2166
1620	=cut	2167	=cut
1621		2168
1622	sub unique_maps() {	2169	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2170	[
1624	or return;	2171	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2172	utf8::decode $_;
1630	next if /\.pst$/;	2173	/\.map$/
1631	next unless /^$PATH_SEP/o;	2174	? normalise $_
1632		2175	: ()
1633	push @paths, new cf::path $_;	2176	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2177	]
1635
1636	\@paths
1637	}	2178	}
1638		2179
1639	package cf;	2180	package cf;
1640		2181
1641	=back	2182	=back
…		…
1687		2228
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2229	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2230
1690	if ($self->{record_replies}) {	2231	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2232	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2233
1692	} else {	2234	} else {
		2235	my $pl = $self->contr;
		2236
		2237	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2238	my $dialog = $pl->{npc_dialog};
		2239	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2240
		2241	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2242	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2243	$self->message ($msg, $flags);
		2244	}
1695	}	2245	}
1696	}	2246	}
1697		2247
1698	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1699		2249
…		…
1713		2263
1714	=item $player_object->enter_link	2264	=item $player_object->enter_link
1715		2265
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2266	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2267
1718	The player should be reaosnably safe there for short amounts of time. You	2268	The player should be reasonably safe there for short amounts of time. You
1719	I<MUST> call C<leave_link> as soon as possible, though.	2269	I<MUST> call C<leave_link> as soon as possible, though.
1720		2270
		2271	Will never block.
		2272
1721	=item $player_object->leave_link ($map, $x, $y)	2273	=item $player_object->leave_link ($map, $x, $y)
1722		2274
1723	Moves the player out of the specila link map onto the given map. If the	2275	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2276	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2277	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2278	fails, to the emergency map position.
1727		2279
1728	Might block.	2280	Might block.
1729		2281
1730	=cut	2282	=cut
		2283
		2284	sub link_map {
		2285	unless ($LINK_MAP) {
		2286	$LINK_MAP = cf::map::find "{link}"
		2287	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2288	$LINK_MAP->load;
		2289	}
		2290
		2291	$LINK_MAP
		2292	}
1731		2293
1732	sub cf::object::player::enter_link {	2294	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2295	my ($self) = @_;
1734		2296
1735	$self->deactivate_recursive;	2297	$self->deactivate_recursive;
1736		2298
1737	return if $self->map == $LINK_MAP;	2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2300
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2302	if $self->map && $self->map->{path} ne "{link}";
1741		2303
1742	$self->enter_map ($LINK_MAP, 20, 20);	2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	2305	}
1744		2306
1745	sub cf::object::player::leave_link {	2307	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
1747		2311
1748	my $link_pos = delete $self->{_link_pos};	2312	my $link_pos = delete $self->{_link_pos};
1749		2313
1750	unless ($map) {	2314	unless ($map) {
1751	# restore original map position	2315	# restore original map position
…		…
1769	$map->load;	2333	$map->load;
1770	$map->load_diag;	2334	$map->load_diag;
1771		2335
1772	return unless $self->contr->active;	2336	return unless $self->contr->active;
1773	$self->activate_recursive;	2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2340	$self->enter_map ($map, $x, $y);
1775	}	2341	}
1776		2342
1777	cf::player->attach (	2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1778	on_logout => sub {
1779	my ($pl) = @_;
1780		2344
1781	# abort map switching before logout	2345	Moves the player to the given map-path and coordinates by first freezing
1782	if ($pl->ob->{_link_pos}) {	2346	her, loading and preparing them map, calling the provided $check callback
1783	cf::sync_job {	2347	that has to return the map if sucecssful, and then unfreezes the player on
1784	$pl->ob->leave_link	2348	the new (success) or old (failed) map position. In either case, $done will
1785	};	2349	be called at the end of this process.
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2350
1791	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808
1809	=item $player_object->goto ($path, $x, $y)
1810
1811	=cut	2351	=cut
		2352
		2353	our $GOTOGEN;
1812		2354
1813	sub cf::object::player::goto {	2355	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2356	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2357
1816	$path = new cf::path $path;	2358	# do generation counting so two concurrent goto's will be executed in-order
		2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2360
1818	$self->enter_link;	2361	$self->enter_link;
1819		2362
1820	(async {	2363	(async {
		2364	my $map = eval {
1821	my $map = cf::map::find $path->as_string;	2365	my $map = cf::map::find $path;
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2366
1824	# warn "entering ", $map->path, " at ($x, $y)\n"
1825	# if $map;	2367	if ($map) {
1826		2368	$map = $map->customise_for ($self);
		2369	$map = $check->($map) if $check && $map;
		2370	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2371	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2372	}
1828		2373
		2374	$map
		2375	};
		2376
		2377	if ($@) {
		2378	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2379	LOG llevError | logBacktrace, Carp::longmess $@;
		2380	}
		2381
		2382	if ($gen == $self->{_goto_generation}) {
		2383	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
1830	})->prio (1);	2388	})->prio (1);
1831	}	2389	}
1832		2390
1833	=item $player_object->enter_exit ($exit_object)	2391	=item $player_object->enter_exit ($exit_object)
1834		2392
…		…
1836		2394
1837	sub parse_random_map_params {	2395	sub parse_random_map_params {
1838	my ($spec) = @_;	2396	my ($spec) = @_;
1839		2397
1840	my $rmp = { # defaults	2398	my $rmp = { # defaults
1841	xsize => 10,	2399	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2400	ysize => (cf::rndm 15, 40),
		2401	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2402	#layout => string,
1843	};	2403	};
1844		2404
1845	for (split /\n/, $spec) {	2405	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2406	my ($k, $v) = split /\s+/, $_, 2;
1847		2407
…		…
1851	$rmp	2411	$rmp
1852	}	2412	}
1853		2413
1854	sub prepare_random_map {	2414	sub prepare_random_map {
1855	my ($exit) = @_;	2415	my ($exit) = @_;
		2416
		2417	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2418
1857	# all this does is basically replace the /! path by	2419	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2420	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2421	# that depends on the exit object
1860		2422
1861	my $rmp = parse_random_map_params $exit->msg;	2423	my $rmp = parse_random_map_params $exit->msg;
1862		2424
1863	if ($exit->map) {	2425	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2426	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2427	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2428	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2429	$rmp->{origin_y} = $exit->y;
1868	}	2430	}
1869		2431
1870	$rmp->{random_seed} ||= $exit->random_seed;	2432	$rmp->{random_seed} ||= $exit->random_seed;
1871		2433
1872	my $data = cf::to_json $rmp;	2434	my $data = cf::to_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2435	my $md5 = Digest::MD5::md5_hex $data;
		2436	my $meta = "$RANDOMDIR/$md5.meta";
1874		2437
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2438	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2439	aio_write $fh, 0, (length $data), $data, 0;
		2440	undef $fh;
		2441	aio_rename "$meta~", $meta;
1877		2442
1878	$exit->slaying ("?random/$md5");	2443	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2444	$exit->msg (undef);
1880	}	2445	}
1881	}	2446	}
…		…
1883	sub cf::object::player::enter_exit {	2448	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2449	my ($self, $exit) = @_;
1885		2450
1886	return unless $self->type == cf::PLAYER;	2451	return unless $self->type == cf::PLAYER;
1887		2452
		2453	if ($exit->slaying eq "/!") {
		2454	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2455	# the problem is that $exit might not survive long enough
		2456	# so it needs to be done right now, right here
		2457	cf::sync_job { prepare_random_map $exit };
		2458	}
		2459
		2460	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2461	my $hp = $exit->stats->hp;
		2462	my $sp = $exit->stats->sp;
		2463
1888	$self->enter_link;	2464	$self->enter_link;
		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
1889		2469
1890	(async {	2470	(async {
1891	$self->deactivate_recursive; # just to be sure	2471	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2472	unless (eval {
1893	prepare_random_map $exit	2473	$self->goto ($slaying, $hp, $sp);
1894	if $exit->slaying eq "/!";
1895
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1898		2474
1899	1;	2475	1;
1900	}) {	2476	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2477	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2478	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2479	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2480	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2481
1906	warn "ERROR in enter_exit: $@";	2482	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2483	$self->leave_link;
1908	}	2484	}
1909	})->prio (1);	2485	})->prio (1);
…		…
1922		2498
1923	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
1925		2501
1926	utf8::encode $text;	2502	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2504	}
1929		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	sub cf::client::send_msg {
		2516	my ($self, $channel, $msg, $color, @extra) = @_;
		2517
		2518	$msg = $self->pl->expand_cfpod ($msg);
		2519
		2520	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2521
		2522	if (ref $channel) {
		2523	# send meta info to client, if not yet sent
		2524	unless (exists $self->{channel}{$channel->{id}}) {
		2525	$self->{channel}{$channel->{id}} = $channel;
		2526	$self->ext_msg (channel_info => $channel);
		2527	}
		2528
		2529	$channel = $channel->{id};
		2530	}
		2531
		2532	return unless @extra || length $msg;
		2533
		2534	if ($self->can_msg) {
		2535	# default colour, mask it out
		2536	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2537	if $color & cf::NDI_DEF;
		2538
		2539	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2540	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2541	} else {
		2542	if ($color >= 0) {
		2543	# replace some tags by gcfclient-compatible ones
		2544	for ($msg) {
		2545	1 while
		2546	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2547	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2548	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2549	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2550	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2551	}
		2552
		2553	$color &= cf::NDI_COLOR_MASK;
		2554
		2555	utf8::encode $msg;
		2556
		2557	if (0 && $msg =~ /\[/) {
		2558	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2559	} else {
		2560	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2561	$self->send_packet ("drawinfo $color $msg")
		2562	}
		2563	}
		2564	}
		2565	}
		2566
		2567	=item $client->ext_msg ($type, @msg)
		2568
		2569	Sends an ext event to the client.
		2570
		2571	=cut
		2572
		2573	sub cf::client::ext_msg($$@) {
		2574	my ($self, $type, @msg) = @_;
		2575
		2576	my $extcmd = $self->extcmd;
		2577
		2578	if ($extcmd == 2) {
		2579	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2580	} elsif ($extcmd == 1) { # TODO: remove
		2581	push @msg, msgtype => "event_$type";
		2582	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2583	}
		2584	}
1930		2585
1931	=item $success = $client->query ($flags, "text", \&cb)	2586	=item $success = $client->query ($flags, "text", \&cb)
1932		2587
1933	Queues a query to the client, calling the given callback with	2588	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2589	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2590	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		2591
1937	Queries can fail, so check the return code. Or don't, as queries will become	2592	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	2593	become reliable at some point in the future.
1939		2594
1940	=cut	2595	=cut
1941		2596
1942	sub cf::client::query {	2597	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	2598	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	2606	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2607	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		2608
1954	$self->send_packet ($self->{query_queue}[0][0])	2609	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	2610	if @{ $self->{query_queue} } == 1;
		2611
		2612	1
1956	}	2613	}
1957		2614
1958	cf::client->attach (	2615	cf::client->attach (
		2616	on_connect => sub {
		2617	my ($ns) = @_;
		2618
		2619	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2620	},
1959	on_reply => sub {	2621	on_reply => sub {
1960	my ($ns, $msg) = @_;	2622	my ($ns, $msg) = @_;
1961		2623
1962	# this weird shuffling is so that direct followup queries	2624	# this weird shuffling is so that direct followup queries
1963	# get handled first	2625	# get handled first
1964	my $queue = delete $ns->{query_queue}	2626	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2627	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2628
1967	(shift @$queue)->[1]->($msg);	2629	(shift @$queue)->[1]->($msg);
		2630	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2631
1969	push @{ $ns->{query_queue} }, @$queue;	2632	push @{ $ns->{query_queue} }, @$queue;
1970		2633
1971	if (@{ $ns->{query_queue} } == @$queue) {	2634	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2635	if (@$queue) {
…		…
1974	} else {	2637	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2638	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	2639	}
1977	}	2640	}
1978	},	2641	},
		2642	on_exticmd => sub {
		2643	my ($ns, $buf) = @_;
		2644
		2645	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2646
		2647	if (ref $msg) {
		2648	my ($type, $reply, @payload) =
		2649	"ARRAY" eq ref $msg
		2650	? @$msg
		2651	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2652
		2653	if (my $cb = $EXTICMD{$type}) {
		2654	my @reply = $cb->($ns, @payload);
		2655
		2656	$ns->ext_reply ($reply, @reply)
		2657	if $reply;
		2658	}
		2659	} else {
		2660	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2661	}
		2662
		2663	cf::override;
		2664	},
1979	);	2665	);
1980		2666
1981	=item $client->async (\&cb)	2667	=item $client->async (\&cb)
1982		2668
1983	Create a new coroutine, running the specified callback. The coroutine will	2669	Create a new coroutine, running the specified callback. The coroutine will
…		…
2024	our $safe = new Safe "safe";	2710	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	2711	our $safe_hole = new Safe::Hole;
2026		2712
2027	$SIG{FPE} = 'IGNORE';	2713	$SIG{FPE} = 'IGNORE';
2028		2714
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2715	$safe->permit_only (Opcode::opset qw(
		2716	:base_core :base_mem :base_orig :base_math
		2717	grepstart grepwhile mapstart mapwhile
		2718	sort time
		2719	));
2030		2720
2031	# here we export the classes and methods available to script code	2721	# here we export the classes and methods available to script code
2032		2722
2033	=pod	2723	=pod
2034		2724
2035	The following fucntions and emthods are available within a safe environment:	2725	The following functions and methods are available within a safe environment:
2036		2726
2037	cf::object contr pay_amount pay_player map	2727	cf::object
		2728	contr pay_amount pay_player map x y force_find force_add
		2729	insert remove
		2730
2038	cf::object::player player	2731	cf::object::player
2039	cf::player peaceful	2732	player
2040	cf::map trigger	2733
		2734	cf::player
		2735	peaceful
		2736
		2737	cf::map
		2738	trigger
2041		2739
2042	=cut	2740	=cut
2043		2741
2044	for (	2742	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	2743	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2744	insert remove inv)],
2046	["cf::object::player" => qw(player)],	2745	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	2746	["cf::player" => qw(peaceful)],
2048	["cf::map" => qw(trigger)],	2747	["cf::map" => qw(trigger)],
2049	) {	2748	) {
2050	no strict 'refs';	2749	no strict 'refs';
…		…
2121	=back	2820	=back
2122		2821
2123	=cut	2822	=cut
2124		2823
2125	#############################################################################	2824	#############################################################################
		2825	# the server's init and main functions
2126		2826
2127	=head2 EXTENSION DATABASE SUPPORT	2827	sub load_facedata($) {
		2828	my ($path) = @_;
2128		2829
2129	Crossfire maintains a very simple database for extension use. It can	2830	warn "loading facedata from $path\n";
2130	currently store anything that can be serialised using Storable, which
2131	excludes objects.
2132		2831
2133	The parameter C<$family> should best start with the name of the extension	2832	my $facedata;
2134	using it, it should be unique.	2833	0 < aio_load $path, $facedata
		2834	or die "$path: $!";
2135		2835
2136	=over 4	2836	$facedata = Coro::Storable::thaw $facedata;
2137		2837
2138	=item $hashref = cf::db_get $family	2838	$facedata->{version} == 2
		2839	or cf::cleanup "$path: version mismatch, cannot proceed.";
2139		2840
2140	Return a hashref for use by the extension C<$family>, which can be
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143
2144	=item $value = cf::db_get $family => $key
2145
2146	Returns a single value from the database
2147
2148	=item cf::db_put $family => $hashref
2149
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}	2841	{
		2842	my $faces = $facedata->{faceinfo};
2176		2843
2177	my $pid;	2844	while (my ($face, $info) = each %$faces) {
		2845	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2846	cf::face::set_visibility $idx, $info->{visibility};
		2847	cf::face::set_magicmap $idx, $info->{magicmap};
		2848	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2849	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2178		2850
2179	sub db_save() {	2851	cf::cede_to_tick;
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});
2199
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}
2204
2205	sub db_get($;$) {
2206	@_ >= 2
2207	? $DB->{$_[0]}{$_[1]}
2208	: ($DB->{$_[0]} ||= { })
2209	}
2210
2211	sub db_put($$;$) {
2212	if (@_ >= 3) {
2213	$DB->{$_[0]}{$_[1]} = $_[2];
2214	} else {
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219
2220	cf::global->attach (
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	2852	}
2225	);
2226	}
2227		2853
2228	#############################################################################	2854	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	2855	next unless $info->{smooth};
		2856	my $idx = cf::face::find $face
		2857	or next;
		2858	if (my $smooth = cf::face::find $info->{smooth}) {
		2859	cf::face::set_smooth $idx, $smooth;
		2860	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2861	} else {
		2862	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2863	}
		2864
		2865	cf::cede_to_tick;
		2866	}
		2867	}
		2868
		2869	{
		2870	my $anims = $facedata->{animinfo};
		2871
		2872	while (my ($anim, $info) = each %$anims) {
		2873	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2874	cf::cede_to_tick;
		2875	}
		2876
		2877	cf::anim::invalidate_all; # d'oh
		2878	}
		2879
		2880	{
		2881	# TODO: for gcfclient pleasure, we should give resources
		2882	# that gcfclient doesn't grok a >10000 face index.
		2883	my $res = $facedata->{resource};
		2884	my $enc = JSON::XS->new->utf8->canonical;
		2885
		2886	my $soundconf = delete $res->{"res/sound.conf"};
		2887
		2888	while (my ($name, $info) = each %$res) {
		2889	my $meta = $enc->encode ({
		2890	name => $name,
		2891	%{ $info->{meta} || {} },
		2892	});
		2893
		2894	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2895
		2896	if ($info->{type} & 1) {
		2897	# prepend meta info
		2898
		2899	my $data = pack "(w/a*)*", $meta, $info->{data};
		2900	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2901
		2902	cf::face::set_data $idx, 0, $data, $chk;
		2903	} else {
		2904	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2905	}
		2906
		2907	cf::face::set_type $idx, $info->{type};
		2908
		2909	cf::cede_to_tick;
		2910	}
		2911
		2912	if ($soundconf) {
		2913	$soundconf = $enc->decode (delete $soundconf->{data});
		2914
		2915	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2916	my $sound = $soundconf->{compat}[$_]
		2917	or next;
		2918
		2919	my $face = cf::face::find "sound/$sound->[1]";
		2920	cf::sound::set $sound->[0] => $face;
		2921	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2922	}
		2923
		2924	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2925	my $face = cf::face::find "sound/$v";
		2926	cf::sound::set $k => $face;
		2927	}
		2928	}
		2929	}
		2930
		2931	1
		2932	}
		2933
		2934	register_exticmd fx_want => sub {
		2935	my ($ns, $want) = @_;
		2936
		2937	while (my ($k, $v) = each %$want) {
		2938	$ns->fx_want ($k, $v);
		2939	}
		2940	};
		2941
		2942	sub reload_regions {
		2943	load_resource_file "$MAPDIR/regions"
		2944	or die "unable to load regions file\n";
		2945
		2946	for (cf::region::list) {
		2947	$_->{match} = qr/$_->{match}/
		2948	if exists $_->{match};
		2949	}
		2950	}
		2951
		2952	sub reload_facedata {
		2953	load_facedata "$DATADIR/facedata"
		2954	or die "unable to load facedata\n";
		2955	}
		2956
		2957	sub reload_archetypes {
		2958	load_resource_file "$DATADIR/archetypes"
		2959	or die "unable to load archetypes\n";
		2960	#d# NEED to laod twice to resolve forward references
		2961	# this really needs to be done in an extra post-pass
		2962	# (which needs to be synchronous, so solve it differently)
		2963	load_resource_file "$DATADIR/archetypes"
		2964	or die "unable to load archetypes\n";
		2965	}
		2966
		2967	sub reload_treasures {
		2968	load_resource_file "$DATADIR/treasures"
		2969	or die "unable to load treasurelists\n";
		2970	}
		2971
		2972	sub reload_resources {
		2973	warn "reloading resource files...\n";
		2974
		2975	reload_regions;
		2976	reload_facedata;
		2977	#reload_archetypes;#d#
		2978	reload_archetypes;
		2979	reload_treasures;
		2980
		2981	warn "finished reloading resource files\n";
		2982	}
		2983
		2984	sub init {
		2985	reload_resources;
		2986	}
2230		2987
2231	sub cfg_load {	2988	sub cfg_load {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	2989	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	2990	or return;
2234		2991
2235	local $/;	2992	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	2993	*CFG = YAML::Syck::Load <$fh>;
2237		2994
…		…
2251		3008
2252	sub main {	3009	sub main {
2253	# we must not ever block the main coroutine	3010	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3011	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3012	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3013	(async {
2256	async { Event::one_event };	3014	Event::one_event;
		3015	})->prio (Coro::PRIO_MAX);
2257	};	3016	};
2258		3017
2259	cfg_load;	3018	cfg_load;
2260	db_load;	3019	db_init;
2261	load_extensions;	3020	load_extensions;
		3021
		3022	$TICK_WATCHER->start;
2262	Event::loop;	3023	Event::loop;
2263	}	3024	}
2264		3025
2265	#############################################################################	3026	#############################################################################
2266	# initialisation and cleanup	3027	# initialisation and cleanup
2267		3028
2268	# install some emergency cleanup handlers	3029	# install some emergency cleanup handlers
2269	BEGIN {	3030	BEGIN {
2270	for my $signal (qw(INT HUP TERM)) {	3031	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3032	Event->signal (
		3033	reentrant => 0,
2272	data => WF_AUTOCANCEL,	3034	data => WF_AUTOCANCEL,
2273	signal => $signal,	3035	signal => $signal,
		3036	prio => 0,
2274	cb => sub {	3037	cb => sub {
2275	cf::cleanup "SIG$signal";	3038	cf::cleanup "SIG$signal";
2276	},	3039	},
2277	);	3040	);
2278	}	3041	}
2279	}	3042	}
2280		3043
		3044	sub write_runtime {
		3045	my $runtime = "$LOCALDIR/runtime";
		3046
		3047	# first touch the runtime file to show we are still running:
		3048	# the fsync below can take a very very long time.
		3049
		3050	IO::AIO::aio_utime $runtime, undef, undef;
		3051
		3052	my $guard = cf::lock_acquire "write_runtime";
		3053
		3054	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3055	or return;
		3056
		3057	my $value = $cf::RUNTIME + 90 + 10;
		3058	# 10 is the runtime save interval, for a monotonic clock
		3059	# 60 allows for the watchdog to kill the server.
		3060
		3061	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3062	and return;
		3063
		3064	# always fsync - this file is important
		3065	aio_fsync $fh
		3066	and return;
		3067
		3068	# touch it again to show we are up-to-date
		3069	aio_utime $fh, undef, undef;
		3070
		3071	close $fh
		3072	or return;
		3073
		3074	aio_rename "$runtime~", $runtime
		3075	and return;
		3076
		3077	warn "runtime file written.\n";
		3078
		3079	1
		3080	}
		3081
2281	sub emergency_save() {	3082	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3083	my $freeze_guard = cf::freeze_mainloop;
2283		3084
2284	warn "enter emergency perl save\n";	3085	warn "enter emergency perl save\n";
2285		3086
2286	cf::sync_job {	3087	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	3088	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3089	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3090	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3091	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	3092	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3093	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3094	$pl->valid or next;
2294	$pl->save;	3095	$pl->save;
…		…
2300	my $map = $cf::MAP{$path} or next;	3101	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3102	$map->valid or next;
2302	$map->save;	3103	$map->save;
2303	}	3104	}
2304	warn "end emergency map save\n";	3105	warn "end emergency map save\n";
		3106
		3107	warn "begin emergency database checkpoint\n";
		3108	BDB::db_env_txn_checkpoint $DB_ENV;
		3109	warn "end emergency database checkpoint\n";
2305	};	3110	};
2306		3111
2307	warn "leave emergency perl save\n";	3112	warn "leave emergency perl save\n";
2308	}	3113	}
2309		3114
		3115	sub post_cleanup {
		3116	my ($make_core) = @_;
		3117
		3118	warn Carp::longmess "post_cleanup backtrace"
		3119	if $make_core;
		3120	}
		3121
2310	sub reload() {	3122	sub do_reload_perl() {
2311	# can/must only be called in main	3123	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3124	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	3125	warn "can only reload from main coroutine";
2314	return;	3126	return;
2315	}	3127	}
2316		3128
2317	warn "reloading...";	3129	warn "reloading...";
2318		3130
2319	warn "freezing server";	3131	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	3132
		3133	cf::sync_job {
		3134	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	3135	cf::emergency_save;
		3136	cf::write_runtime; # external watchdog should not bark
2322		3137
2323	warn "sync database to disk";	3138	warn "syncing database to disk";
2324	cf::db_sync;	3139	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		3140
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	3141	# if anything goes wrong in here, we should simply crash as we already saved
2329		3142
2330	warn "cancel all watchers";	3143	warn "cancelling all WF_AUTOCANCEL watchers";
2331	for (Event::all_watchers) {	3144	for (Event::all_watchers) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	3145	$_->cancel if $_->data & WF_AUTOCANCEL;
2333	}	3146	}
2334		3147
		3148	warn "flushing outstanding aio requests";
		3149	for (;;) {
		3150	BDB::flush;
		3151	IO::AIO::flush;
		3152	Coro::cede;
		3153	last unless IO::AIO::nreqs || BDB::nreqs;
		3154	warn "iterate...";
		3155	}
		3156
		3157	++$RELOAD;
		3158
2335	warn "cancel all extension coros";	3159	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	3160	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	3161	%EXT_CORO = ();
2338		3162
2339	warn "remove commands";	3163	warn "removing commands";
2340	%COMMAND = ();	3164	%COMMAND = ();
2341		3165
2342	warn "remove ext commands";	3166	warn "removing ext/exti commands";
2343	%EXTCMD = ();	3167	%EXTCMD = ();
		3168	%EXTICMD = ();
2344		3169
2345	warn "unload/nuke all extensions";	3170	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	3171	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	3172	warn "... unloading $pkg";
2348		3173
2349	if (my $cb = $pkg->can ("unload")) {	3174	if (my $cb = $pkg->can ("unload")) {
2350	eval {	3175	eval {
…		…
2355		3180
2356	warn "... nuking $pkg";	3181	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	3182	Symbol::delete_package $pkg;
2358	}	3183	}
2359		3184
2360	warn "unload all perl modules loaded from $LIBDIR";	3185	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	3186	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3187	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		3188
2364	warn "removing <$k>";	3189	warn "... unloading $k";
2365	delete $INC{$k};	3190	delete $INC{$k};
2366		3191
2367	$k =~ s/\.pm$//;	3192	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	3193	$k =~ s/\//::/g;
2369		3194
…		…
2372	}	3197	}
2373		3198
2374	Symbol::delete_package $k;	3199	Symbol::delete_package $k;
2375	}	3200	}
2376		3201
2377	warn "get rid of safe::, as good as possible";	3202	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	3203	Symbol::delete_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3204	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		3205
2381	warn "unload cf.pm \"a bit\"";	3206	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	3207	delete $INC{"cf.pm"};
		3208	delete $INC{"cf/pod.pm"};
2383		3209
2384	# don't, removes xs symbols, too,	3210	# don't, removes xs symbols, too,
2385	# and global variables created in xs	3211	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	3212	#Symbol::delete_package __PACKAGE__;
2387		3213
		3214	warn "unload completed, starting to reload now";
		3215
2388	warn "reloading cf.pm";	3216	warn "reloading cf.pm";
2389	require cf;	3217	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3218	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		3219
2392	warn "load config and database again";	3220	warn "loading config and database again";
2393	cf::cfg_load;	3221	cf::cfg_load;
2394	cf::db_load;
2395		3222
2396	warn "load extensions";	3223	warn "loading extensions";
2397	cf::load_extensions;	3224	cf::load_extensions;
2398		3225
2399	warn "reattach attachments to objects/players";	3226	warn "reattaching attachments to objects/players";
2400	_global_reattach;	3227	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	3228	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	3229	reattach $_ for values %MAP;
2403	};	3230	warn "reattaching attachments to players";
		3231	reattach $_ for values %PLAYER;
2404		3232
2405	if ($@) {	3233	warn "leaving sync_job";
		3234
		3235	1
		3236	} or do {
2406	warn $@;	3237	warn $@;
2407	warn "error while reloading, exiting.";	3238	warn "error while reloading, exiting.";
2408	exit 1;	3239	exit 1;
2409	}	3240	};
2410		3241
2411	warn "reloaded";	3242	warn "reloaded";
2412	};	3243	};
2413		3244
2414	#############################################################################	3245	our $RELOAD_WATCHER; # used only during reload
2415		3246
2416	unless ($LINK_MAP) {	3247	sub reload_perl() {
2417	$LINK_MAP = cf::map::new;	3248	# doing reload synchronously and two reloads happen back-to-back,
		3249	# coro crashes during coro_state_free->destroy here.
2418		3250
2419	$LINK_MAP->width (41);	3251	$RELOAD_WATCHER ||= Event->timer (
2420	$LINK_MAP->height (41);	3252	reentrant => 0,
2421	$LINK_MAP->alloc;
2422	$LINK_MAP->path ("{link}");
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,	3253	after => 0,
		3254	data => WF_AUTOCANCEL,
2429	cb => sub {	3255	cb => sub {
2430	$_[0]->w->cancel;	3256	do_reload_perl;
2431		3257	undef $RELOAD_WATCHER;
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});	3258	},
2450		3259	);
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	3260	}
2456		3261
2457	register_command "reload" => sub {	3262	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3263	my ($who, $arg) = @_;
2459		3264
2460	if ($who->flag (FLAG_WIZ)) {	3265	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	3266	$who->message ("reloading server.");
		3267	async { reload_perl };
2464	}	3268	}
2465	};	3269	};
2466		3270
2467	unshift @INC, $LIBDIR;	3271	unshift @INC, $LIBDIR;
2468		3272
		3273	my $bug_warning = 0;
		3274
		3275	our @WAIT_FOR_TICK;
		3276	our @WAIT_FOR_TICK_BEGIN;
		3277
		3278	sub wait_for_tick {
		3279	return unless $TICK_WATCHER->is_active;
		3280	return if $Coro::current == $Coro::main;
		3281
		3282	my $signal = new Coro::Signal;
		3283	push @WAIT_FOR_TICK, $signal;
		3284	$signal->wait;
		3285	}
		3286
		3287	sub wait_for_tick_begin {
		3288	return unless $TICK_WATCHER->is_active;
		3289	return if $Coro::current == $Coro::main;
		3290
		3291	my $signal = new Coro::Signal;
		3292	push @WAIT_FOR_TICK_BEGIN, $signal;
		3293	$signal->wait;
		3294	}
		3295
		3296	my $min = 1e6;#d#
		3297	my $avg = 10;
2469	$TICK_WATCHER = Event->timer (	3298	$TICK_WATCHER = Event->timer (
2470	reentrant => 0,	3299	reentrant => 0,
		3300	parked => 1,
2471	prio => 0,	3301	prio => 0,
2472	at => $NEXT_TICK || $TICK,	3302	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,	3303	data => WF_AUTOCANCEL,
2474	cb => sub {	3304	cb => sub {
		3305	if ($Coro::current != $Coro::main) {
		3306	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3307	unless ++$bug_warning > 10;
		3308	return;
		3309	}
		3310
2475	$NOW = Event::time;	3311	$NOW = $tick_start = Event::time;
2476		3312
2477	cf::server_tick; # one server iteration	3313	cf::server_tick; # one server iteration
		3314
		3315	0 && sync_job {#d#
		3316	for(1..10) {
		3317	my $t = Event::time;
		3318	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3319	or die;
		3320
		3321	$map->width (50);
		3322	$map->height (50);
		3323	$map->alloc;
		3324	$map->_load_objects ("/tmp/x.map", 1);
		3325	my $t = Event::time - $t;
		3326
		3327	#next unless $t < 0.0013;#d#
		3328	if ($t < $min) {
		3329	$min = $t;
		3330	}
		3331	$avg = $avg * 0.99 + $t * 0.01;
		3332	}
		3333	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3334	exit 0;
		3335	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3336	};
		3337
2478	$RUNTIME += $TICK;	3338	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	3339	$NEXT_TICK += $TICK;
2480		3340
2481	$WAIT_FOR_TICK->broadcast;	3341	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3342	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3343	Coro::async_pool {
		3344	write_runtime
		3345	or warn "ERROR: unable to write runtime file: $!";
		3346	};
		3347	}
		3348
		3349	# my $AFTER = Event::time;
		3350	# warn $AFTER - $NOW;#d#
		3351
		3352	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3353	$sig->send;
		3354	}
		3355	while (my $sig = shift @WAIT_FOR_TICK) {
		3356	$sig->send;
		3357	}
		3358
		3359	$NOW = Event::time;
2483		3360
2484	# if we are delayed by four ticks or more, skip them all	3361	# if we are delayed by four ticks or more, skip them all
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3362	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2486		3363
2487	$TICK_WATCHER->at ($NEXT_TICK);	3364	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;	3365	$TICK_WATCHER->start;
		3366
		3367	$LOAD = ($NOW - $tick_start) / $TICK;
		3368	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3369
		3370	_post_tick;
		3371
		3372
2489	},	3373	},
2490	);	3374	);
2491		3375
		3376	{
2492	IO::AIO::max_poll_time $TICK * 0.2;	3377	BDB::max_poll_time $TICK * 0.1;
2493		3378	$BDB_POLL_WATCHER = Event->io (
2494	Event->io (	3379	reentrant => 0,
2495	fd => IO::AIO::poll_fileno,	3380	fd => BDB::poll_fileno,
2496	poll => 'r',	3381	poll => 'r',
2497	prio => 5,	3382	prio => 0,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,	3383	data => WF_AUTOCANCEL,
2504	after => 0,	3384	cb => \&BDB::poll_cb,
2505	interval => 10,	3385	);
2506	cb => sub {	3386	BDB::min_parallel 8;
2507	(Coro::unblock_sub {	3387
2508	write_runtime	3388	BDB::set_sync_prepare {
2509	or warn "ERROR: unable to write runtime file: $!";	3389	my $status;
		3390	my $current = $Coro::current;
		3391	(
		3392	sub {
		3393	$status = $!;
		3394	$current->ready; undef $current;
		3395	},
		3396	sub {
		3397	Coro::schedule while defined $current;
		3398	$! = $status;
		3399	},
		3400	)
		3401	};
		3402
		3403	unless ($DB_ENV) {
		3404	$DB_ENV = BDB::db_env_create;
		3405
		3406	cf::sync_job {
		3407	eval {
		3408	BDB::db_env_open
		3409	$DB_ENV,
		3410	$BDBDIR,
		3411	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3412	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3413	0666;
		3414
		3415	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3416
		3417	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3418	$DB_ENV->set_lk_detect;
		3419	};
		3420
		3421	cf::cleanup "db_env_open(db): $@" if $@;
2510	})->();	3422	};
2511	},	3423	}
2512	);	3424	}
		3425
		3426	{
		3427	IO::AIO::min_parallel 8;
		3428
		3429	undef $Coro::AIO::WATCHER;
		3430	IO::AIO::max_poll_time $TICK * 0.1;
		3431	$AIO_POLL_WATCHER = Event->io (
		3432	reentrant => 0,
		3433	data => WF_AUTOCANCEL,
		3434	fd => IO::AIO::poll_fileno,
		3435	poll => 'r',
		3436	prio => 6,
		3437	cb => \&IO::AIO::poll_cb,
		3438	);
		3439	}
		3440
		3441	my $_log_backtrace;
		3442
		3443	sub _log_backtrace {
		3444	my ($msg, @addr) = @_;
		3445
		3446	$msg =~ s/\n//;
		3447
		3448	# limit the # of concurrent backtraces
		3449	if ($_log_backtrace < 2) {
		3450	++$_log_backtrace;
		3451	async {
		3452	my @bt = fork_call {
		3453	@addr = map { sprintf "%x", $_ } @addr;
		3454	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3455	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3456	or die "addr2line: $!";
		3457
		3458	my @funcs;
		3459	my @res = <$fh>;
		3460	chomp for @res;
		3461	while (@res) {
		3462	my ($func, $line) = splice @res, 0, 2, ();
		3463	push @funcs, "[$func] $line";
		3464	}
		3465
		3466	@funcs
		3467	};
		3468
		3469	LOG llevInfo, "[ABT] $msg\n";
		3470	LOG llevInfo, "[ABT] $_\n" for @bt;
		3471	--$_log_backtrace;
		3472	};
		3473	} else {
		3474	LOG llevInfo, "[ABT] $msg\n";
		3475	LOG llevInfo, "[ABT] [suppressed]\n";
		3476	}
		3477	}
		3478
		3479	# load additional modules
		3480	use cf::pod;
2513		3481
2514	END { cf::emergency_save }	3482	END { cf::emergency_save }
2515		3483
2516	1	3484	1
2517		3485

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