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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.142 by root, Fri Jan 5 21:51:42 2007 UTC vs.
Revision 1.314 by root, Mon Jul 23 16:53:15 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
		27	use Data::Dumper;
20	use Digest::MD5;	28	use Digest::MD5;
21	use Fcntl;	29	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	30	use YAML::Syck ();
		31	use IO::AIO 2.32 ();
24	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
25		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
27		43
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
30		46
31	$Coro::main->prio (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
32		48
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		50
35	our %COMMAND = ();	51	our %COMMAND = ();
36	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
38		59
		60	our $RELOAD; # number of reloads so far
39	our @EVENT;	61	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		62
42	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	79	our $NEXT_TICK;
45	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
46		85
47	our %CFG;	86	our %CFG;
48		87
49	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	89	our $RUNTIME;
51		90
		91	our %PLAYER; # all users
52	our %MAP; # all maps	92	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
54	our $RANDOM_MAPS = cf::localdir . "/random";	94
55	our %EXT_CORO;	95	# used to convert map paths into valid unix filenames by replacing / by ∕
		96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
56		101
57	binmode STDOUT;	102	binmode STDOUT;
58	binmode STDERR;	103	binmode STDERR;
59		104
60	# read virtual server time, if available	105	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
65	}	110	}
66		111
67	mkdir cf::localdir;	112	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		114
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
76		118
77	#############################################################################	119	#############################################################################
78		120
79	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
80		122
…		…
87	=item $cf::RUNTIME	129	=item $cf::RUNTIME
88		130
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	132	every server tick.
91		133
92	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		137
94	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
96		142
97	=item $cf::NOW	143	=item $cf::NOW
98		144
99	The time of the last (current) server tick.	145	The time of the last (current) server tick.
100		146
101	=item $cf::TICK	147	=item $cf::TICK
102		148
103	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
104		160
105	=item %cf::CFG	161	=item %cf::CFG
106		162
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	164	from wherever your confdir points to.
		165
		166	=item cf::wait_for_tick, cf::wait_for_tick_begin
		167
		168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		169	returns directly I<after> the tick processing (and consequently, can only wake one process
		170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
109		177
110	=back	178	=back
111		179
112	=cut	180	=cut
113		181
114	BEGIN {	182	BEGIN {
115	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	184	my $msg = join "", @_;
117	utf8::encode $msg;
118		185
119	$msg .= "\n"	186	$msg .= "\n"
120	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
121		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
122	LOG llevError, "cfperl: $msg";	192	LOG llevError, $msg;
123	};	193	};
124	}	194	}
125		195
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		203
133	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	205	# within the Safe compartment.
135	for my $pkg (qw(	206	for my $pkg (qw(
136	cf::global cf::attachable	207	cf::global cf::attachable
…		…
145		216
146	$Event::DIED = sub {	217	$Event::DIED = sub {
147	warn "error in event callback: @_";	218	warn "error in event callback: @_";
148	};	219	};
149		220
150	my %ext_pkg;	221	#############################################################################
151	my @exts;
152	my @hook;
153		222
154	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
155		224
156	=over 4	225	=over 4
157		226
158	=cut	227	=item dumpval $ref
159		228
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
161		249
162	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
163		251
164	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
165		253
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
174		255
175	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
176		257
177	=cut	258	=cut
178		259
179	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
181	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
183		264
184	=item cf::lock_wait $string	265	=item cf::lock_wait $string
185		266
186	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
187		268
…		…
193	returned.	274	returned.
194		275
195	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
197		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
198	=cut	283	=cut
199		284
200	our %LOCK;	285	our %LOCK;
201		286
202	sub lock_wait($) {	287	sub lock_wait($) {
…		…
221	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
223	}	308	}
224	}	309	}
225		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
226	sub freeze_mainloop {	317	sub freeze_mainloop {
227	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
228		319
229	my $guard = Coro::guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
230	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
231	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	Useful for short background jobs.
		334
		335	=cut
		336
		337	our @SLOT_QUEUE;
		338	our $SLOT_QUEUE;
		339
		340	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		341	$SLOT_QUEUE = Coro::async {
		342	my $signal = new Coro::Signal;
		343
		344	while () {
		345	next_job:
		346	my $avail = cf::till_tick;
		347	if ($avail > 0.01) {
		348	for (0 .. $#SLOT_QUEUE) {
		349	if ($SLOT_QUEUE[$_][0] < $avail) {
		350	my $job = splice @SLOT_QUEUE, $_, 1, ();
		351	$job->[2]->send;
		352	Coro::cede;
		353	goto next_job;
		354	}
		355	}
		356	}
		357
		358	if (@SLOT_QUEUE) {
		359	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		360	push @cf::WAIT_FOR_TICK, $signal;
		361	$signal->wait;
		362	} else {
		363	Coro::schedule;
		364	}
		365	}
		366	};
		367
		368	sub get_slot($;$) {
		369	my ($time, $pri) = @_;
		370
		371	push @SLOT_QUEUE, [$time, $pri, my $sig = new Coro::Signal];
		372	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		373	$SLOT_QUEUE->ready;
		374	$sig->wait;
232	}	375	}
233		376
234	=item cf::async { BLOCK }	377	=item cf::async { BLOCK }
235		378
236	Currently the same as Coro::async_pool, meaning you cannot use	379	Currently the same as Coro::async_pool, meaning you cannot use
…		…
241		384
242	BEGIN { *async = \&Coro::async_pool }	385	BEGIN { *async = \&Coro::async_pool }
243		386
244	=item cf::sync_job { BLOCK }	387	=item cf::sync_job { BLOCK }
245		388
246	The design of crossfire+ requires that the main coro ($Coro::main) is	389	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
247	always able to handle events or runnable, as crossfire+ is only partly	390	is always able to handle events or runnable, as Crossfire TRT is only
248	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	391	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		392	acceptable.
249		393
250	If it must be done, put the blocking parts into C<sync_job>. This will run	394	If it must be done, put the blocking parts into C<sync_job>. This will run
251	the given BLOCK in another coroutine while waiting for the result. The	395	the given BLOCK in another coroutine while waiting for the result. The
252	server will be frozen during this time, so the block should either finish	396	server will be frozen during this time, so the block should either finish
253	fast or be very important.	397	fast or be very important.
…		…
256		400
257	sub sync_job(&) {	401	sub sync_job(&) {
258	my ($job) = @_;	402	my ($job) = @_;
259		403
260	if ($Coro::current == $Coro::main) {	404	if ($Coro::current == $Coro::main) {
		405	my $time = Event::time;
		406
261	# this is the main coro, too bad, we have to block	407	# this is the main coro, too bad, we have to block
262	# till the operation succeeds, freezing the server :/	408	# till the operation succeeds, freezing the server :/
263		409
264	# TODO: use suspend/resume instead	410	# TODO: use suspend/resume instead
265	# (but this is cancel-safe)	411	# (but this is cancel-safe)
…		…
276		422
277	while ($busy) {	423	while ($busy) {
278	Coro::cede or Event::one_event;	424	Coro::cede or Event::one_event;
279	}	425	}
280		426
		427	$time = Event::time - $time;
		428
		429	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		430	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		431
		432	$tick_start += $time; # do not account sync jobs to server load
		433
281	wantarray ? @res : $res[0]	434	wantarray ? @res : $res[0]
282	} else {	435	} else {
283	# we are in another coroutine, how wonderful, everything just works	436	# we are in another coroutine, how wonderful, everything just works
284		437
285	$job->()	438	$job->()
286	}	439	}
287	}	440	}
288		441
289	=item $coro = cf::async_ext { BLOCK }	442	=item $coro = cf::async_ext { BLOCK }
290		443
291	Like async, but this coro is automcatially being canceled when the	444	Like async, but this coro is automatically being canceled when the
292	extension calling this is being unloaded.	445	extension calling this is being unloaded.
293		446
294	=cut	447	=cut
295		448
296	sub async_ext(&) {	449	sub async_ext(&) {
…		…
304	$EXT_CORO{$coro+0} = $coro;	457	$EXT_CORO{$coro+0} = $coro;
305		458
306	$coro	459	$coro
307	}	460	}
308		461
309	sub write_runtime {	462	=item fork_call { }, $args
310	my $runtime = cf::localdir . "/runtime";
311		463
312	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	464	Executes the given code block with the given arguments in a seperate
313	or return;	465	process, returning the results. Everything must be serialisable with
		466	Coro::Storable. May, of course, block. Note that the executed sub may
		467	never block itself or use any form of Event handling.
314		468
315	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	469	=cut
316	(aio_write $fh, 0, (length $value), $value, 0) <= 0
317	and return;
318		470
319	aio_fsync $fh	471	sub _store_scalar {
320	and return;	472	open my $fh, ">", \my $buf
321		473	or die "fork_call: cannot open fh-to-buf in child : $!";
		474	Storable::store_fd $_[0], $fh;
322	close $fh	475	close $fh;
323	or return;
324		476
325	aio_rename "$runtime~", $runtime	477	$buf
326	and return;	478	}
327		479
		480	sub fork_call(&@) {
		481	my ($cb, @args) = @_;
		482
		483	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		484	# or die "socketpair: $!";
		485	pipe my $fh1, my $fh2
		486	or die "pipe: $!";
		487
		488	if (my $pid = fork) {
		489	close $fh2;
		490
		491	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		492	warn "pst<$res>" unless $res =~ /^pst/;
		493	$res = Coro::Storable::thaw $res;
		494
		495	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		496
		497	Carp::confess $$res unless "ARRAY" eq ref $res;
		498
		499	return wantarray ? @$res : $res->[-1];
		500	} else {
		501	reset_signals;
		502	local $SIG{__WARN__};
		503	local $SIG{__DIE__};
		504	# just in case, this hack effectively disables event
		505	# in the child. cleaner and slower would be canceling all watchers,
		506	# but this works for the time being.
		507	local $Coro::idle;
		508	$Coro::current->prio (Coro::PRIO_MAX);
		509
		510	eval {
		511	close $fh1;
		512
		513	my @res = eval { $cb->(@args) };
		514
		515	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		516	close $fh2;
		517	};
		518
		519	warn $@ if $@;
		520	_exit 0;
328	1	521	}
		522	}
		523
		524	=item $value = cf::db_get $family => $key
		525
		526	Returns a single value from the environment database.
		527
		528	=item cf::db_put $family => $key => $value
		529
		530	Stores the given C<$value> in the family. It can currently store binary
		531	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		532
		533	=cut
		534
		535	our $DB;
		536
		537	sub db_init {
		538	unless ($DB) {
		539	$DB = BDB::db_create $DB_ENV;
		540
		541	cf::sync_job {
		542	eval {
		543	$DB->set_flags (BDB::CHKSUM);
		544
		545	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		546	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		547	cf::cleanup "db_open(db): $!" if $!;
		548	};
		549	cf::cleanup "db_open(db): $@" if $@;
		550	};
		551	}
		552	}
		553
		554	sub db_get($$) {
		555	my $key = "$_[0]/$_[1]";
		556
		557	cf::sync_job {
		558	BDB::db_get $DB, undef, $key, my $data;
		559
		560	$! ? ()
		561	: $data
		562	}
		563	}
		564
		565	sub db_put($$$) {
		566	BDB::dbreq_pri 4;
		567	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		568	}
		569
		570	=item cf::cache $id => [$paths...], $processversion => $process
		571
		572	Generic caching function that returns the value of the resource $id,
		573	caching and regenerating as required.
		574
		575	This function can block.
		576
		577	=cut
		578
		579	sub cache {
		580	my ($id, $src, $processversion, $process) = @_;
		581
		582	my $meta =
		583	join "\x00",
		584	$processversion,
		585	map {
		586	aio_stat $_
		587	and Carp::croak "$_: $!";
		588
		589	($_, (stat _)[7,9])
		590	} @$src;
		591
		592	my $dbmeta = db_get cache => "$id/meta";
		593	if ($dbmeta ne $meta) {
		594	# changed, we may need to process
		595
		596	my @data;
		597	my $md5;
		598
		599	for (0 .. $#$src) {
		600	0 <= aio_load $src->[$_], $data[$_]
		601	or Carp::croak "$src->[$_]: $!";
		602	}
		603
		604	# if processing is expensive, check
		605	# checksum first
		606	if (1) {
		607	$md5 =
		608	join "\x00",
		609	$processversion,
		610	map {
		611	Coro::cede;
		612	($src->[$_], Digest::MD5::md5_hex $data[$_])
		613	} 0.. $#$src;
		614
		615
		616	my $dbmd5 = db_get cache => "$id/md5";
		617	if ($dbmd5 eq $md5) {
		618	db_put cache => "$id/meta", $meta;
		619
		620	return db_get cache => "$id/data";
		621	}
		622	}
		623
		624	my $t1 = Time::HiRes::time;
		625	my $data = $process->(\@data);
		626	my $t2 = Time::HiRes::time;
		627
		628	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		629
		630	db_put cache => "$id/data", $data;
		631	db_put cache => "$id/md5" , $md5;
		632	db_put cache => "$id/meta", $meta;
		633
		634	return $data;
		635	}
		636
		637	db_get cache => "$id/data"
		638	}
		639
		640	=item cf::datalog type => key => value, ...
		641
		642	Log a datalog packet of the given type with the given key-value pairs.
		643
		644	=cut
		645
		646	sub datalog($@) {
		647	my ($type, %kv) = @_;
		648	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
329	}	649	}
330		650
331	=back	651	=back
332		652
333	=cut	653	=cut
334
335	#############################################################################
336
337	package cf::path;
338
339	sub new {
340	my ($class, $path, $base) = @_;
341
342	$path = $path->as_string if ref $path;
343
344	my $self = bless { }, $class;
345
346	# {... are special paths that are not touched
347	# ?xxx/... are special absolute paths
348	# ?random/... random maps
349	# /! non-realised random map exit
350	# /... normal maps
351	# ~/... per-player maps without a specific player (DO NOT USE)
352	# ~user/... per-player map of a specific user
353
354	if ($path =~ /^{/) {
355	# fine as it is
356	} elsif ($path =~ s{^\?random/}{}) {
357	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
358	$self->{random} = cf::from_json $data;
359	} else {
360	if ($path =~ s{^~([^/]+)?}{}) {
361	$self->{user_rel} = 1;
362
363	if (defined $1) {
364	$self->{user} = $1;
365	} elsif ($base =~ m{^~([^/]+)/}) {
366	$self->{user} = $1;
367	} else {
368	warn "cannot resolve user-relative path without user <$path,$base>\n";
369	}
370	} elsif ($path =~ /^\//) {
371	# already absolute
372	} else {
373	$base =~ s{[^/]+/?$}{};
374	return $class->new ("$base/$path");
375	}
376
377	for ($path) {
378	redo if s{/\.?/}{/};
379	redo if s{/[^/]+/\.\./}{/};
380	}
381	}
382
383	$self->{path} = $path;
384
385	$self
386	}
387
388	# the name / primary key / in-game path
389	sub as_string {
390	my ($self) = @_;
391
392	$self->{user_rel} ? "~$self->{user}$self->{path}"
393	: $self->{random} ? "?random/$self->{path}"
394	: $self->{path}
395	}
396
397	# the displayed name, this is a one way mapping
398	sub visible_name {
399	my ($self) = @_;
400
401	# if (my $rmp = $self->{random}) {
402	# # todo: be more intelligent about this
403	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
404	# } else {
405	$self->as_string
406	# }
407	}
408
409	# escape the /'s in the path
410	sub _escaped_path {
411	# ∕ is U+2215
412	(my $path = $_[0]{path}) =~ s/\//∕/g;
413	$path
414	}
415
416	# the original (read-only) location
417	sub load_path {
418	my ($self) = @_;
419
420	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
421	}
422
423	# the temporary/swap location
424	sub save_path {
425	my ($self) = @_;
426
427	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
428	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
429	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
430	}
431
432	# the unique path, might be eq to save_path
433	sub uniq_path {
434	my ($self) = @_;
435
436	$self->{user_rel} || $self->{random}
437	? undef
438	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
439	}
440
441	# return random map parameters, or undef
442	sub random_map_params {
443	my ($self) = @_;
444
445	$self->{random}
446	}
447
448	# this is somewhat ugly, but style maps do need special treatment
449	sub is_style_map {
450	$_[0]{path} =~ m{^/styles/}
451	}
452
453	package cf;
454		654
455	#############################################################################	655	#############################################################################
456		656
457	=head2 ATTACHABLE OBJECTS	657	=head2 ATTACHABLE OBJECTS
458		658
…		…
460	attach callbacks/event handlers (a collection of which is called an "attachment")	660	attach callbacks/event handlers (a collection of which is called an "attachment")
461	to it. All such attachable objects support the following methods.	661	to it. All such attachable objects support the following methods.
462		662
463	In the following description, CLASS can be any of C<global>, C<object>	663	In the following description, CLASS can be any of C<global>, C<object>
464	C<player>, C<client> or C<map> (i.e. the attachable objects in	664	C<player>, C<client> or C<map> (i.e. the attachable objects in
465	crossfire+).	665	Crossfire TRT).
466		666
467	=over 4	667	=over 4
468		668
469	=item $attachable->attach ($attachment, key => $value...)	669	=item $attachable->attach ($attachment, key => $value...)
470		670
…		…
584	our @CB_TYPE = (); # registry for type (cf-object class) based events	784	our @CB_TYPE = (); # registry for type (cf-object class) based events
585	our @CB_MAP = ();	785	our @CB_MAP = ();
586		786
587	my %attachment;	787	my %attachment;
588		788
		789	sub cf::attachable::thawer_merge {
		790	# simply override everything except _meta
		791	local $_[0]{_meta};
		792	%{$_[0]} = %{$_[1]};
		793	}
		794
589	sub _attach_cb($$$$) {	795	sub _attach_cb($$$$) {
590	my ($registry, $event, $prio, $cb) = @_;	796	my ($registry, $event, $prio, $cb) = @_;
591		797
592	use sort 'stable';	798	use sort 'stable';
593		799
…		…
627	$registry = $CB_TYPE[$object_type] ||= [];	833	$registry = $CB_TYPE[$object_type] ||= [];
628		834
629	} elsif ($type eq "subtype") {	835	} elsif ($type eq "subtype") {
630	defined $object_type or Carp::croak "subtype specified without type";	836	defined $object_type or Carp::croak "subtype specified without type";
631	my $object_subtype = shift @arg;	837	my $object_subtype = shift @arg;
632	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	838	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
633		839
634	} elsif ($type eq "package") {	840	} elsif ($type eq "package") {
635	my $pkg = shift @arg;	841	my $pkg = shift @arg;
636		842
637	while (my ($name, $id) = each %cb_id) {	843	while (my ($name, $id) = each %cb_id) {
…		…
666	_attach $registry, $klass, @attach;	872	_attach $registry, $klass, @attach;
667	}	873	}
668		874
669	$obj->{$name} = \%arg;	875	$obj->{$name} = \%arg;
670	} else {	876	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	877	warn "object uses attachment '$name' which is not available, postponing.\n";
672	}	878	}
673		879
674	$obj->{_attachment}{$name} = undef;	880	$obj->{_attachment}{$name} = undef;
675	}	881	}
676		882
…		…
678	if (ref $_[0]) {	884	if (ref $_[0]) {
679	_object_attach @_;	885	_object_attach @_;
680	} else {	886	} else {
681	_attach shift->_attach_registry, @_;	887	_attach shift->_attach_registry, @_;
682	}	888	}
		889	_recalc_want;
683	};	890	};
684		891
685	# all those should be optimised	892	# all those should be optimised
686	sub cf::attachable::detach {	893	sub cf::attachable::detach {
687	my ($obj, $name) = @_;	894	my ($obj, $name) = @_;
…		…
690	delete $obj->{_attachment}{$name};	897	delete $obj->{_attachment}{$name};
691	reattach ($obj);	898	reattach ($obj);
692	} else {	899	} else {
693	Carp::croak "cannot, currently, detach class attachments";	900	Carp::croak "cannot, currently, detach class attachments";
694	}	901	}
		902	_recalc_want;
695	};	903	};
696		904
697	sub cf::attachable::attached {	905	sub cf::attachable::attached {
698	my ($obj, $name) = @_;	906	my ($obj, $name) = @_;
699		907
…		…
714	";	922	";
715	die if $@;	923	die if $@;
716	}	924	}
717		925
718	our $override;	926	our $override;
719	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	927	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
720		928
721	sub override {	929	sub override {
722	$override = 1;	930	$override = 1;
723	@invoke_results = ();	931	@INVOKE_RESULTS = (@_);
724	}	932	}
725		933
726	sub do_invoke {	934	sub do_invoke {
727	my $event = shift;	935	my $event = shift;
728	my $callbacks = shift;	936	my $callbacks = shift;
729		937
730	@invoke_results = ();	938	@INVOKE_RESULTS = ();
731		939
732	local $override;	940	local $override;
733		941
734	for (@$callbacks) {	942	for (@$callbacks) {
735	eval { &{$_->[1]} };	943	eval { &{$_->[1]} };
…		…
752		960
753	Generate an object-specific event with the given arguments.	961	Generate an object-specific event with the given arguments.
754		962
755	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	963	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
756	removed in future versions), and there is no public API to access override	964	removed in future versions), and there is no public API to access override
757	results (if you must, access C<@cf::invoke_results> directly).	965	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
758		966
759	=back	967	=back
760		968
761	=cut	969	=cut
762		970
763	#############################################################################	971	#############################################################################
764	# object support	972	# object support
		973	#
		974
		975	sub _can_merge {
		976	my ($ob1, $ob2) = @_;
		977
		978	local $Storable::canonical = 1;
		979	my $fob1 = Storable::freeze $ob1;
		980	my $fob2 = Storable::freeze $ob2;
		981
		982	$fob1 eq $fob2
		983	}
765		984
766	sub reattach {	985	sub reattach {
767	# basically do the same as instantiate, without calling instantiate	986	# basically do the same as instantiate, without calling instantiate
768	my ($obj) = @_;	987	my ($obj) = @_;
		988
		989	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
769		990
770	my $registry = $obj->registry;	991	my $registry = $obj->registry;
771		992
772	@$registry = ();	993	@$registry = ();
773		994
…		…
820	$filename, length $$rdata, scalar @$objs;	1041	$filename, length $$rdata, scalar @$objs;
821		1042
822	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1043	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
823	chmod SAVE_MODE, $fh;	1044	chmod SAVE_MODE, $fh;
824	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1045	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
825	aio_fsync $fh;	1046	aio_fsync $fh if $cf::USE_FSYNC;
826	close $fh;	1047	close $fh;
827		1048
828	if (@$objs) {	1049	if (@$objs) {
829	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1050	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1051	chmod SAVE_MODE, $fh;
831	my $data = Storable::nfreeze { version => 1, objs => $objs };	1052	my $data = Storable::nfreeze { version => 1, objs => $objs };
832	aio_write $fh, 0, (length $data), $data, 0;	1053	aio_write $fh, 0, (length $data), $data, 0;
833	aio_fsync $fh;	1054	aio_fsync $fh if $cf::USE_FSYNC;
834	close $fh;	1055	close $fh;
835	aio_rename "$filename.pst~", "$filename.pst";	1056	aio_rename "$filename.pst~", "$filename.pst";
836	}	1057	}
837	} else {	1058	} else {
838	aio_unlink "$filename.pst";	1059	aio_unlink "$filename.pst";
…		…
870	or return;	1091	or return;
871	$av = eval { (Storable::thaw $av)->{objs} };	1092	$av = eval { (Storable::thaw $av)->{objs} };
872	}	1093	}
873		1094
874	warn sprintf "loading %s (%d)\n",	1095	warn sprintf "loading %s (%d)\n",
875	$filename, length $data, scalar @{$av || []};#d#	1096	$filename, length $data, scalar @{$av || []};
876	return ($data, $av);	1097	return ($data, $av);
877	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
878		1105
879	#############################################################################	1106	#############################################################################
880	# command handling &c	1107	# command handling &c
881		1108
882	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
895	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
896	}	1123	}
897		1124
898	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
899		1126
900	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
901		1132
902	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
903	called.	1134	called.
904		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
905	=cut	1147	=cut
906		1148
907	sub register_extcmd {	1149	sub register_extcmd {
908	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
909		1151
910	my $caller = caller;
911	#warn "registering extcmd '$name' to '$caller'";
912
913	$EXTCMD{$name} = [$cb, $caller];	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
914	}	1159	}
915		1160
916	cf::player->attach (	1161	cf::player->attach (
917	on_command => sub {	1162	on_command => sub {
918	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
927	cf::override;	1172	cf::override;
928	},	1173	},
929	on_extcmd => sub {	1174	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
931		1176
932	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1178
934	if (ref $msg) {	1179	if (ref $msg) {
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1180	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
936	if (my %reply = $cb->[0]->($pl, $msg)) {	1181	if (my %reply = $cb->($pl, $msg)) {
937	$pl->ext_reply ($msg->{msgid}, %reply);	1182	$pl->ext_reply ($msg->{msgid}, %reply);
938	}	1183	}
939	}	1184	}
940	} else {	1185	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1186	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
943		1188
944	cf::override;	1189	cf::override;
945	},	1190	},
946	);	1191	);
947		1192
948	sub register {
949	my ($base, $pkg) = @_;
950
951	#TODO
952	}
953
954	sub load_extension {	1193	sub load_extensions {
		1194	cf::sync_job {
		1195	my %todo;
		1196
		1197	for my $path (<$LIBDIR/*.ext>) {
		1198	next unless -r $path;
		1199
		1200	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1201	my $base = $1;
		1202	my $pkg = $1;
		1203	$pkg =~ s/[^[:word:]]/_/g;
		1204	$pkg = "ext::$pkg";
		1205
		1206	open my $fh, "<:utf8", $path
		1207	or die "$path: $!";
		1208
		1209	my $source = do { local $/; <$fh> };
		1210
		1211	my %ext = (
		1212	path => $path,
		1213	base => $base,
		1214	pkg => $pkg,
		1215	);
		1216
		1217	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1218	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1219
		1220	$ext{source} =
		1221	"package $pkg; use strict; use utf8;\n"
		1222	. "#line 1 \"$path\"\n{\n"
		1223	. $source
		1224	. "\n};\n1";
		1225
		1226	$todo{$base} = \%ext;
		1227	}
		1228
		1229	my %done;
		1230	while (%todo) {
		1231	my $progress;
		1232
		1233	while (my ($k, $v) = each %todo) {
		1234	for (split /,\s*/, $v->{meta}{depends}) {
		1235	goto skip
		1236	unless exists $done{$_};
		1237	}
		1238
		1239	warn "... loading '$k' into '$v->{pkg}'\n";
		1240
		1241	unless (eval $v->{source}) {
		1242	my $msg = $@ ? "$v->{path}: $@\n"
		1243	: "$v->{base}: extension inactive.\n";
		1244
		1245	if (exists $v->{meta}{mandatory}) {
		1246	warn $msg;
		1247	warn "mandatory extension failed to load, exiting.\n";
		1248	exit 1;
		1249	}
		1250
		1251	warn $msg;
		1252	}
		1253
		1254	$done{$k} = delete $todo{$k};
		1255	push @EXTS, $v->{pkg};
		1256	$progress = 1;
		1257	}
		1258
		1259	skip:
		1260	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1261	unless $progress;
		1262	}
		1263	};
		1264	}
		1265
		1266	#############################################################################
		1267
		1268	=back
		1269
		1270	=head2 CORE EXTENSIONS
		1271
		1272	Functions and methods that extend core crossfire objects.
		1273
		1274	=cut
		1275
		1276	package cf::player;
		1277
		1278	use Coro::AIO;
		1279
		1280	=head3 cf::player
		1281
		1282	=over 4
		1283
		1284	=item cf::player::find $login
		1285
		1286	Returns the given player object, loading it if necessary (might block).
		1287
		1288	=cut
		1289
		1290	sub playerdir($) {
		1291	"$PLAYERDIR/"
		1292	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1293	}
		1294
		1295	sub path($) {
		1296	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1297
		1298	(playerdir $login) . "/playerdata"
		1299	}
		1300
		1301	sub find_active($) {
		1302	$cf::PLAYER{$_[0]}
		1303	and $cf::PLAYER{$_[0]}->active
		1304	and $cf::PLAYER{$_[0]}
		1305	}
		1306
		1307	sub exists($) {
		1308	my ($login) = @_;
		1309
		1310	$cf::PLAYER{$login}
		1311	or cf::sync_job { !aio_stat path $login }
		1312	}
		1313
		1314	sub find($) {
		1315	return $cf::PLAYER{$_[0]} || do {
		1316	my $login = $_[0];
		1317
		1318	my $guard = cf::lock_acquire "user_find:$login";
		1319
		1320	$cf::PLAYER{$_[0]} || do {
		1321	# rename old playerfiles to new ones
		1322	#TODO: remove when no longer required
		1323	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1324	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1325	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1326	aio_unlink +(playerdir $login) . "/$login.pl";
		1327
		1328	my $pl = load_pl path $login
		1329	or return;
		1330	$cf::PLAYER{$login} = $pl
		1331	}
		1332	}
		1333	}
		1334
		1335	sub save($) {
		1336	my ($pl) = @_;
		1337
		1338	return if $pl->{deny_save};
		1339
		1340	my $path = path $pl;
		1341	my $guard = cf::lock_acquire "user_save:$path";
		1342
		1343	return if $pl->{deny_save};
		1344
		1345	aio_mkdir playerdir $pl, 0770;
		1346	$pl->{last_save} = $cf::RUNTIME;
		1347
		1348	$pl->save_pl ($path);
		1349	Coro::cede;
		1350	}
		1351
		1352	sub new($) {
		1353	my ($login) = @_;
		1354
		1355	my $self = create;
		1356
		1357	$self->ob->name ($login);
		1358	$self->{deny_save} = 1;
		1359
		1360	$cf::PLAYER{$login} = $self;
		1361
		1362	$self
		1363	}
		1364
		1365	=item $pl->quit_character
		1366
		1367	Nukes the player without looking back. If logged in, the connection will
		1368	be destroyed. May block for a long time.
		1369
		1370	=cut
		1371
		1372	sub quit_character {
		1373	my ($pl) = @_;
		1374
		1375	my $name = $pl->ob->name;
		1376
		1377	$pl->{deny_save} = 1;
		1378	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1379
		1380	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1381	$pl->deactivate;
		1382	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1383	$pl->ns->destroy if $pl->ns;
		1384
		1385	my $path = playerdir $pl;
		1386	my $temp = "$path~$cf::RUNTIME~deleting~";
		1387	aio_rename $path, $temp;
		1388	delete $cf::PLAYER{$pl->ob->name};
		1389	$pl->destroy;
		1390
		1391	my $prefix = qr<^~\Q$name\E/>;
		1392
		1393	# nuke player maps
		1394	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1395
		1396	IO::AIO::aio_rmtree $temp;
		1397	}
		1398
		1399	=item $pl->kick
		1400
		1401	Kicks a player out of the game. This destroys the connection.
		1402
		1403	=cut
		1404
		1405	sub kick {
		1406	my ($pl, $kicker) = @_;
		1407
		1408	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1409	$pl->killer ("kicked");
		1410	$pl->ns->destroy;
		1411	}
		1412
		1413	=item cf::player::list_logins
		1414
		1415	Returns am arrayref of all valid playernames in the system, can take a
		1416	while and may block, so not sync_job-capable, ever.
		1417
		1418	=cut
		1419
		1420	sub list_logins {
		1421	my $dirs = aio_readdir $PLAYERDIR
		1422	or return [];
		1423
		1424	my @logins;
		1425
		1426	for my $login (@$dirs) {
		1427	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1428	aio_read $fh, 0, 512, my $buf, 0 or next;
		1429	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1430
		1431	utf8::decode $login;
		1432	push @logins, $login;
		1433	}
		1434
		1435	\@logins
		1436	}
		1437
		1438	=item $player->maps
		1439
		1440	Returns an arrayref of map paths that are private for this
		1441	player. May block.
		1442
		1443	=cut
		1444
		1445	sub maps($) {
		1446	my ($pl) = @_;
		1447
		1448	$pl = ref $pl ? $pl->ob->name : $pl;
		1449
		1450	my $files = aio_readdir playerdir $pl
		1451	or return;
		1452
		1453	my @paths;
		1454
		1455	for (@$files) {
		1456	utf8::decode $_;
		1457	next if /\.(?:pl|pst)$/;
		1458	next unless /^$PATH_SEP/o;
		1459
		1460	push @paths, cf::map::normalise "~$pl/$_";
		1461	}
		1462
		1463	\@paths
		1464	}
		1465
		1466	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1467
		1468	Expand crossfire pod fragments into protocol xml.
		1469
		1470	=cut
		1471
		1472	sub expand_cfpod {
		1473	((my $self), (local $_)) = @_;
		1474
		1475	# escape & and <
		1476	s/&/&amp;/g;
		1477	s/(?<![BIUGH])</&lt;/g;
		1478
		1479	# this is buggy, it needs to properly take care of nested <'s
		1480
		1481	1 while
		1482	# replace B<>, I<>, U<> etc.
		1483	s/B<([^\>]*)>/<b>$1<\/b>/
		1484	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1485	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1486	# replace G<male|female> tags
		1487	|| s{G<([^>|]*)\|([^>]*)>}{
		1488	$self->gender ? $2 : $1
		1489	}ge
		1490	# replace H<hint text>
		1491	|| s{H<([^\>]*)>}
		1492	{
		1493	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1494	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1495	"")
		1496	[$self->{hintmode}]
		1497	}ge;
		1498
		1499	# create single paragraphs (very hackish)
		1500	s/(?<=\S)\n(?=\w)/ /g;
		1501
		1502	# compress some whitespace
		1503	s/\s+\n/\n/g; # ws line-ends
		1504	s/\n\n+/\n/g; # double lines
		1505	s/^\n+//; # beginning lines
		1506	s/\n+$//; # ending lines
		1507
		1508	$_
		1509	}
		1510
		1511	sub hintmode {
		1512	$_[0]{hintmode} = $_[1] if @_ > 1;
		1513	$_[0]{hintmode}
		1514	}
		1515
		1516	=item $player->ext_reply ($msgid, %msg)
		1517
		1518	Sends an ext reply to the player.
		1519
		1520	=cut
		1521
		1522	sub ext_reply($$%) {
		1523	my ($self, $id, %msg) = @_;
		1524
		1525	$msg{msgid} = $id;
		1526	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
		1527	}
		1528
		1529	=item $player->ext_event ($type, %msg)
		1530
		1531	Sends an ext event to the client.
		1532
		1533	=cut
		1534
		1535	sub ext_event($$%) {
		1536	my ($self, $type, %msg) = @_;
		1537
		1538	$self->ns->ext_event ($type, %msg);
		1539	}
		1540
		1541	=head3 cf::region
		1542
		1543	=over 4
		1544
		1545	=cut
		1546
		1547	package cf::region;
		1548
		1549	=item cf::region::find_by_path $path
		1550
		1551	Tries to decuce the likely region for a map knowing only its path.
		1552
		1553	=cut
		1554
		1555	sub find_by_path($) {
955	my ($path) = @_;	1556	my ($path) = @_;
956		1557
957	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1558	my ($match, $specificity);
958	my $base = $1;
959	my $pkg = $1;
960	$pkg =~ s/[^[:word:]]/_/g;
961	$pkg = "ext::$pkg";
962		1559
963	warn "loading '$path' into '$pkg'\n";	1560	for my $region (list) {
964		1561	if ($region->{match} && $path =~ $region->{match}) {
965	open my $fh, "<:utf8", $path	1562	($match, $specificity) = ($region, $region->specificity)
966	or die "$path: $!";	1563	if $region->specificity > $specificity;
967		1564	}
968	my $source =
969	"package $pkg; use strict; use utf8;\n"
970	. "#line 1 \"$path\"\n{\n"
971	. (do { local $/; <$fh> })
972	. "\n};\n1";
973
974	eval $source
975	or die $@ ? "$path: $@\n"
976	: "extension disabled.\n";
977
978	push @exts, $pkg;
979	$ext_pkg{$base} = $pkg;
980
981	# no strict 'refs';
982	# @{"$pkg\::ISA"} = ext::;
983
984	register $base, $pkg;
985	}
986
987	sub unload_extension {
988	my ($pkg) = @_;
989
990	warn "removing extension $pkg\n";
991
992	# remove hooks
993	#TODO
994	# for my $idx (0 .. $#PLUGIN_EVENT) {
995	# delete $hook[$idx]{$pkg};
996	# }	1565	}
997		1566
998	# remove commands	1567	$match
999	for my $name (keys %COMMAND) {
1000	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1001
1002	if (@cb) {
1003	$COMMAND{$name} = \@cb;
1004	} else {
1005	delete $COMMAND{$name};
1006	}
1007	}
1008
1009	# remove extcmds
1010	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1011	delete $EXTCMD{$name};
1012	}
1013
1014	if (my $cb = $pkg->can ("unload")) {
1015	eval {
1016	$cb->($pkg);
1017	1
1018	} or warn "$pkg unloaded, but with errors: $@";
1019	}
1020
1021	Symbol::delete_package $pkg;
1022	}
1023
1024	sub load_extensions {
1025	for my $ext (<$LIBDIR/*.ext>) {
1026	next unless -r $ext;
1027	eval {
1028	load_extension $ext;
1029	1
1030	} or warn "$ext not loaded: $@";
1031	}
1032	}
1033
1034	#############################################################################
1035	# load/save/clean perl data associated with a map
1036
1037	*cf::mapsupport::on_clean = sub {
1038	my ($map) = @_;
1039
1040	my $path = $map->tmpname;
1041	defined $path or return;
1042
1043	unlink "$path.pst";
1044	};
1045
1046	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1047
1048	#############################################################################
1049	# load/save perl data associated with player->ob objects
1050
1051	sub all_objects(@) {
1052	@_, map all_objects ($_->inv), @_
1053	}
1054
1055	# TODO: compatibility cruft, remove when no longer needed
1056	cf::player->attach (
1057	on_load => sub {
1058	my ($pl, $path) = @_;
1059
1060	for my $o (all_objects $pl->ob) {
1061	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1062	$o->set_ob_key_value ("_perl_data");
1063
1064	%$o = %{ Storable::thaw pack "H*", $value };
1065	}
1066	}
1067	},
1068	);
1069
1070	#############################################################################
1071
1072	=head2 CORE EXTENSIONS
1073
1074	Functions and methods that extend core crossfire objects.
1075
1076	=head3 cf::player
1077
1078	=over 4
1079
1080	=item cf::player::exists $login
1081
1082	Returns true when the given account exists.
1083
1084	=cut
1085
1086	sub cf::player::exists($) {
1087	cf::player::find $_[0]
1088	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1089	}
1090
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)
1092
1093	Sends an ext reply to the player.
1094
1095	=cut
1096
1097	sub cf::player::ext_reply($$$%) {
1098	my ($self, $id, %msg) = @_;
1099
1100	$msg{msgid} = $id;
1101
1102	$self->send ("ext " . to_json \%msg);
1103	}	1568	}
1104		1569
1105	=back	1570	=back
1106
1107		1571
1108	=head3 cf::map	1572	=head3 cf::map
1109		1573
1110	=over 4	1574	=over 4
1111		1575
…		…
1114	package cf::map;	1578	package cf::map;
1115		1579
1116	use Fcntl;	1580	use Fcntl;
1117	use Coro::AIO;	1581	use Coro::AIO;
1118		1582
		1583	use overload
		1584	'""' => \&as_string,
		1585	fallback => 1;
		1586
1119	our $MAX_RESET = 3600;	1587	our $MAX_RESET = 3600;
1120	our $DEFAULT_RESET = 3000;	1588	our $DEFAULT_RESET = 3000;
1121		1589
1122	sub generate_random_map {	1590	sub generate_random_map {
1123	my ($path, $rmp) = @_;	1591	my ($self, $rmp) = @_;
1124
1125	# mit "rum" bekleckern, nicht	1592	# mit "rum" bekleckern, nicht
1126	cf::map::_create_random_map	1593	$self->_create_random_map (
1127	$path,
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1594	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1595	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1596	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1131	$rmp->{exit_on_final_map},	1597	$rmp->{exit_on_final_map},
1132	$rmp->{xsize}, $rmp->{ysize},	1598	$rmp->{xsize}, $rmp->{ysize},
1133	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1599	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1134	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1600	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1135	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1601	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1136	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1602	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1603	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region})	1604	(cf::region::find $rmp->{region}), $rmp->{custom}
		1605	)
		1606	}
		1607
		1608	=item cf::map->register ($regex, $prio)
		1609
		1610	Register a handler for the map path matching the given regex at the
		1611	givne priority (higher is better, built-in handlers have priority 0, the
		1612	default).
		1613
		1614	=cut
		1615
		1616	sub register {
		1617	my (undef, $regex, $prio) = @_;
		1618	my $pkg = caller;
		1619
		1620	no strict;
		1621	push @{"$pkg\::ISA"}, __PACKAGE__;
		1622
		1623	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1624	}
		1625
		1626	# also paths starting with '/'
		1627	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1628
		1629	sub thawer_merge {
		1630	my ($self, $merge) = @_;
		1631
		1632	# we have to keep some variables in memory intact
		1633	local $self->{path};
		1634	local $self->{load_path};
		1635
		1636	$self->SUPER::thawer_merge ($merge);
		1637	}
		1638
		1639	sub normalise {
		1640	my ($path, $base) = @_;
		1641
		1642	$path = "$path"; # make sure its a string
		1643
		1644	$path =~ s/\.map$//;
		1645
		1646	# map plan:
		1647	#
		1648	# /! non-realised random map exit (special hack!)
		1649	# {... are special paths that are not being touched
		1650	# ?xxx/... are special absolute paths
		1651	# ?random/... random maps
		1652	# /... normal maps
		1653	# ~user/... per-player map of a specific user
		1654
		1655	$path =~ s/$PATH_SEP/\//go;
		1656
		1657	# treat it as relative path if it starts with
		1658	# something that looks reasonable
		1659	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1660	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1661
		1662	$base =~ s{[^/]+/?$}{};
		1663	$path = "$base/$path";
		1664	}
		1665
		1666	for ($path) {
		1667	redo if s{//}{/};
		1668	redo if s{/\.?/}{/};
		1669	redo if s{/[^/]+/\.\./}{/};
		1670	}
		1671
		1672	$path
		1673	}
		1674
		1675	sub new_from_path {
		1676	my (undef, $path, $base) = @_;
		1677
		1678	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1679
		1680	$path = normalise $path, $base;
		1681
		1682	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1683	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1684	my $self = bless cf::map::new, $pkg;
		1685	$self->{path} = $path; $self->path ($path);
		1686	$self->init; # pass $1 etc.
		1687	return $self;
		1688	}
		1689	}
		1690
		1691	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1692	()
		1693	}
		1694
		1695	sub init {
		1696	my ($self) = @_;
		1697
		1698	$self
		1699	}
		1700
		1701	sub as_string {
		1702	my ($self) = @_;
		1703
		1704	"$self->{path}"
		1705	}
		1706
		1707	# the displayed name, this is a one way mapping
		1708	sub visible_name {
		1709	&as_string
		1710	}
		1711
		1712	# the original (read-only) location
		1713	sub load_path {
		1714	my ($self) = @_;
		1715
		1716	"$MAPDIR/$self->{path}.map"
		1717	}
		1718
		1719	# the temporary/swap location
		1720	sub save_path {
		1721	my ($self) = @_;
		1722
		1723	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1724	"$TMPDIR/$path.map"
		1725	}
		1726
		1727	# the unique path, undef == no special unique path
		1728	sub uniq_path {
		1729	my ($self) = @_;
		1730
		1731	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1732	"$UNIQUEDIR/$path"
1139	}	1733	}
1140		1734
1141	# and all this just because we cannot iterate over	1735	# and all this just because we cannot iterate over
1142	# all maps in C++...	1736	# all maps in C++...
1143	sub change_all_map_light {	1737	sub change_all_map_light {
…		…
1145		1739
1146	$_->change_map_light ($change)	1740	$_->change_map_light ($change)
1147	for grep $_->outdoor, values %cf::MAP;	1741	for grep $_->outdoor, values %cf::MAP;
1148	}	1742	}
1149		1743
		1744	sub decay_objects {
		1745	my ($self) = @_;
		1746
		1747	return if $self->{deny_reset};
		1748
		1749	$self->do_decay_objects;
		1750	}
		1751
		1752	sub unlink_save {
		1753	my ($self) = @_;
		1754
		1755	utf8::encode (my $save = $self->save_path);
		1756	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1757	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1758	}
		1759
1150	sub try_load_header($) {	1760	sub load_header_from($) {
1151	my ($path) = @_;	1761	my ($self, $path) = @_;
1152		1762
1153	utf8::encode $path;	1763	utf8::encode $path;
1154	aio_open $path, O_RDONLY, 0	1764	#aio_open $path, O_RDONLY, 0
		1765	# or return;
		1766
		1767	$self->_load_header ($path)
1155	or return;	1768	or return;
1156		1769
1157	my $map = cf::map::new	1770	$self->{load_path} = $path;
		1771
		1772	1
		1773	}
		1774
		1775	sub load_header_orig {
		1776	my ($self) = @_;
		1777
		1778	$self->load_header_from ($self->load_path)
		1779	}
		1780
		1781	sub load_header_temp {
		1782	my ($self) = @_;
		1783
		1784	$self->load_header_from ($self->save_path)
		1785	}
		1786
		1787	sub prepare_temp {
		1788	my ($self) = @_;
		1789
		1790	$self->last_access ((delete $self->{last_access})
		1791	|| $cf::RUNTIME); #d#
		1792	# safety
		1793	$self->{instantiate_time} = $cf::RUNTIME
		1794	if $self->{instantiate_time} > $cf::RUNTIME;
		1795	}
		1796
		1797	sub prepare_orig {
		1798	my ($self) = @_;
		1799
		1800	$self->{load_original} = 1;
		1801	$self->{instantiate_time} = $cf::RUNTIME;
		1802	$self->last_access ($cf::RUNTIME);
		1803	$self->instantiate;
		1804	}
		1805
		1806	sub load_header {
		1807	my ($self) = @_;
		1808
		1809	if ($self->load_header_temp) {
		1810	$self->prepare_temp;
		1811	} else {
		1812	$self->load_header_orig
1158	or return;	1813	or return;
		1814	$self->prepare_orig;
		1815	}
1159		1816
1160	# for better error messages only, will be overwritten	1817	$self->{deny_reset} = 1
1161	$map->path ($path);	1818	if $self->no_reset;
1162		1819
1163	$map->load_header ($path)	1820	$self->default_region (cf::region::find_by_path $self->{path})
1164	or return;	1821	unless $self->default_region;
1165		1822
1166	$map->{load_path} = $path;	1823	1
1167
1168	$map
1169	}	1824	}
1170		1825
1171	sub find;	1826	sub find;
1172	sub find {	1827	sub find {
1173	my ($path, $origin) = @_;	1828	my ($path, $origin) = @_;
1174		1829
1175	#warn "find<$path,$origin>\n";#d#
1176
1177	$path = new cf::path $path, $origin && $origin->path;	1830	$path = normalise $path, $origin && $origin->path;
1178	my $key = $path->as_string;
1179		1831
1180	cf::lock_wait "map_find:$key";	1832	cf::lock_wait "map_find:$path";
1181		1833
1182	$cf::MAP{$key} || do {	1834	$cf::MAP{$path} || do {
1183	my $guard = cf::lock_acquire "map_find:$key";	1835	my $guard = cf::lock_acquire "map_find:$path";
1184		1836	my $map = new_from_path cf::map $path
1185	# do it the slow way
1186	my $map = try_load_header $path->save_path;
1187
1188	Coro::cede;
1189
1190	if ($map) {
1191	$map->last_access ((delete $map->{last_access})
1192	|| $cf::RUNTIME); #d#
1193	# safety
1194	$map->{instantiate_time} = $cf::RUNTIME
1195	if $map->{instantiate_time} > $cf::RUNTIME;
1196	} else {
1197	if (my $rmp = $path->random_map_params) {
1198	$map = generate_random_map $key, $rmp;
1199	} else {
1200	$map = try_load_header $path->load_path;
1201	}
1202
1203	$map or return;	1837	or return;
1204		1838
1205	$map->{load_original} = 1;
1206	$map->{instantiate_time} = $cf::RUNTIME;
1207	$map->last_access ($cf::RUNTIME);
1208	$map->instantiate;
1209
1210	# per-player maps become, after loading, normal maps
1211	$map->per_player (0) if $path->{user_rel};
1212	}
1213
1214	$map->path ($key);
1215	$map->{path} = $path;
1216	$map->{last_save} = $cf::RUNTIME;	1839	$map->{last_save} = $cf::RUNTIME;
1217		1840
1218	Coro::cede;	1841	$map->load_header
		1842	or return;
1219		1843
1220	if ($map->should_reset) {	1844	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1845	# doing this can freeze the server in a sync job, obviously
		1846	#$cf::WAIT_FOR_TICK->wait;
1221	$map->reset;	1847	$map->reset;
1222	undef $guard;	1848	undef $guard;
1223	$map = find $path	1849	return find $path;
1224	or return;
1225	}	1850	}
1226		1851
1227	$cf::MAP{$key} = $map	1852	$cf::MAP{$path} = $map
1228	}	1853	}
1229	}	1854	}
		1855
		1856	sub pre_load { }
		1857	sub post_load { }
1230		1858
1231	sub load {	1859	sub load {
1232	my ($self) = @_;	1860	my ($self) = @_;
1233		1861
		1862	local $self->{deny_reset} = 1; # loading can take a long time
		1863
1234	my $path = $self->{path};	1864	my $path = $self->{path};
		1865
		1866	{
1235	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1867	my $guard = cf::lock_acquire "map_load:$path";
1236		1868
1237	return if $self->in_memory != cf::MAP_SWAPPED;	1869	return if $self->in_memory != cf::MAP_SWAPPED;
1238		1870
1239	$self->in_memory (cf::MAP_LOADING);	1871	$self->in_memory (cf::MAP_LOADING);
1240		1872
1241	$self->alloc;	1873	$self->alloc;
		1874
		1875	$self->pre_load;
		1876	Coro::cede;
		1877
1242	$self->load_objects ($self->{load_path}, 1)	1878	$self->_load_objects ($self->{load_path}, 1)
1243	or return;	1879	or return;
1244		1880
1245	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1881	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1246	if delete $self->{load_original};	1882	if delete $self->{load_original};
1247		1883
1248	if (my $uniq = $path->uniq_path) {	1884	if (my $uniq = $self->uniq_path) {
1249	utf8::encode $uniq;	1885	utf8::encode $uniq;
1250	if (aio_open $uniq, O_RDONLY, 0) {	1886	if (aio_open $uniq, O_RDONLY, 0) {
1251	$self->clear_unique_items;	1887	$self->clear_unique_items;
1252	$self->load_objects ($uniq, 0);	1888	$self->_load_objects ($uniq, 0);
1253	}	1889	}
1254	}	1890	}
1255		1891
1256	Coro::cede;	1892	Coro::cede;
1257
1258	# now do the right thing for maps	1893	# now do the right thing for maps
1259	$self->link_multipart_objects;	1894	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1895	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1896	unless $self->difficulty;
		1897	Coro::cede;
		1898
		1899	unless ($self->{deny_activate}) {
		1900	$self->decay_objects;
		1901	$self->fix_auto_apply;
		1902	$self->update_buttons;
		1903	Coro::cede;
		1904	$self->set_darkness_map;
		1905	Coro::cede;
1271	$self->activate;	1906	$self->activate;
1272	}	1907	}
1273		1908
1274	Coro::cede;
1275
1276	$self->in_memory (cf::MAP_IN_MEMORY);	1909	$self->in_memory (cf::MAP_IN_MEMORY);
		1910	}
		1911
		1912	$self->post_load;
		1913	}
		1914
		1915	sub customise_for {
		1916	my ($self, $ob) = @_;
		1917
		1918	return find "~" . $ob->name . "/" . $self->{path}
		1919	if $self->per_player;
		1920
		1921	# return find "?party/" . $ob->name . "/" . $self->{path}
		1922	# if $self->per_party;
		1923
		1924	$self
		1925	}
		1926
		1927	# find and load all maps in the 3x3 area around a map
		1928	sub load_diag {
		1929	my ($map) = @_;
		1930
		1931	my @diag; # diagonal neighbours
		1932
		1933	for (0 .. 3) {
		1934	my $neigh = $map->tile_path ($_)
		1935	or next;
		1936	$neigh = find $neigh, $map
		1937	or next;
		1938	$neigh->load;
		1939
		1940	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1941	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1942	}
		1943
		1944	for (@diag) {
		1945	my $neigh = find @$_
		1946	or next;
		1947	$neigh->load;
		1948	}
1277	}	1949	}
1278		1950
1279	sub find_sync {	1951	sub find_sync {
1280	my ($path, $origin) = @_;	1952	my ($path, $origin) = @_;
1281		1953
1282	cf::sync_job { cf::map::find $path, $origin }	1954	cf::sync_job { find $path, $origin }
1283	}	1955	}
1284		1956
1285	sub do_load_sync {	1957	sub do_load_sync {
1286	my ($map) = @_;	1958	my ($map) = @_;
1287		1959
1288	cf::sync_job { $map->load };	1960	cf::sync_job { $map->load };
1289	}	1961	}
1290		1962
		1963	our %MAP_PREFETCH;
		1964	our $MAP_PREFETCHER = undef;
		1965
		1966	sub find_async {
		1967	my ($path, $origin) = @_;
		1968
		1969	$path = normalise $path, $origin && $origin->{path};
		1970
		1971	if (my $map = $cf::MAP{$path}) {
		1972	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1973	}
		1974
		1975	undef $MAP_PREFETCH{$path};
		1976	$MAP_PREFETCHER ||= cf::async {
		1977	while (%MAP_PREFETCH) {
		1978	for my $path (keys %MAP_PREFETCH) {
		1979	if (my $map = find $path) {
		1980	$map->load;
		1981	}
		1982
		1983	delete $MAP_PREFETCH{$path};
		1984	}
		1985	}
		1986	undef $MAP_PREFETCHER;
		1987	};
		1988	$MAP_PREFETCHER->prio (6);
		1989
		1990	()
		1991	}
		1992
1291	sub save {	1993	sub save {
1292	my ($self) = @_;	1994	my ($self) = @_;
1293		1995
1294	my $lock = cf::lock_acquire "map_data:" . $self->path;	1996	my $lock = cf::lock_acquire "map_data:" . $self->path;
1295		1997
1296	$self->{last_save} = $cf::RUNTIME;	1998	$self->{last_save} = $cf::RUNTIME;
1297		1999
1298	return unless $self->dirty;	2000	return unless $self->dirty;
1299		2001
1300	my $save = $self->{path}->save_path; utf8::encode $save;	2002	my $save = $self->save_path; utf8::encode $save;
1301	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2003	my $uniq = $self->uniq_path; utf8::encode $uniq;
1302		2004
1303	$self->{load_path} = $save;	2005	$self->{load_path} = $save;
1304		2006
1305	return if $self->{deny_save};	2007	return if $self->{deny_save};
1306		2008
1307	local $self->{last_access} = $self->last_access;#d#	2009	local $self->{last_access} = $self->last_access;#d#
1308		2010
		2011	cf::async {
		2012	$_->contr->save for $self->players;
		2013	};
		2014
1309	if ($uniq) {	2015	if ($uniq) {
1310	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2016	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1311	$self->save_objects ($uniq, cf::IO_UNIQUES);	2017	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1312	} else {	2018	} else {
1313	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2019	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1314	}	2020	}
1315	}	2021	}
1316		2022
1317	sub swap_out {	2023	sub swap_out {
1318	my ($self) = @_;	2024	my ($self) = @_;
…		…
1332		2038
1333	sub reset_at {	2039	sub reset_at {
1334	my ($self) = @_;	2040	my ($self) = @_;
1335		2041
1336	# TODO: safety, remove and allow resettable per-player maps	2042	# TODO: safety, remove and allow resettable per-player maps
1337	return 1e99 if $self->{path}{user_rel};
1338	return 1e99 if $self->{deny_reset};	2043	return 1e99 if $self->{deny_reset};
1339		2044
1340	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2045	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1341	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2046	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1342		2047
…		…
1347	my ($self) = @_;	2052	my ($self) = @_;
1348		2053
1349	$self->reset_at <= $cf::RUNTIME	2054	$self->reset_at <= $cf::RUNTIME
1350	}	2055	}
1351		2056
1352	sub unlink_save {
1353	my ($self) = @_;
1354
1355	utf8::encode (my $save = $self->{path}->save_path);
1356	aioreq_pri 3; IO::AIO::aio_unlink $save;
1357	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1358	}
1359
1360	sub rename {
1361	my ($self, $new_path) = @_;
1362
1363	$self->unlink_save;
1364
1365	delete $cf::MAP{$self->path};
1366	$self->{path} = new cf::path $new_path;
1367	$self->path ($self->{path}->as_string);
1368	$cf::MAP{$self->path} = $self;
1369
1370	$self->save;
1371	}
1372
1373	sub reset {	2057	sub reset {
1374	my ($self) = @_;	2058	my ($self) = @_;
1375		2059
1376	my $lock = cf::lock_acquire "map_data:" . $self->path;	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1377		2061
1378	return if $self->players;	2062	return if $self->players;
1379	return if $self->{path}{user_rel};#d#
1380		2063
1381	warn "resetting map ", $self->path;#d#	2064	warn "resetting map ", $self->path;
		2065
		2066	$self->in_memory (cf::MAP_SWAPPED);
		2067
		2068	# need to save uniques path
		2069	unless ($self->{deny_save}) {
		2070	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2071
		2072	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2073	if $uniq;
		2074	}
1382		2075
1383	delete $cf::MAP{$self->path};	2076	delete $cf::MAP{$self->path};
		2077
		2078	$self->clear;
1384		2079
1385	$_->clear_links_to ($self) for values %cf::MAP;	2080	$_->clear_links_to ($self) for values %cf::MAP;
1386		2081
1387	$self->unlink_save;	2082	$self->unlink_save;
1388	$self->destroy;	2083	$self->destroy;
…		…
1391	my $nuke_counter = "aaaa";	2086	my $nuke_counter = "aaaa";
1392		2087
1393	sub nuke {	2088	sub nuke {
1394	my ($self) = @_;	2089	my ($self) = @_;
1395		2090
		2091	delete $cf::MAP{$self->path};
		2092
		2093	$self->unlink_save;
		2094
		2095	bless $self, "cf::map";
		2096	delete $self->{deny_reset};
1396	$self->{deny_save} = 1;	2097	$self->{deny_save} = 1;
1397	$self->reset_timeout (1);	2098	$self->reset_timeout (1);
1398	$self->rename ("{nuke}/" . ($nuke_counter++));	2099	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2100
		2101	$cf::MAP{$self->path} = $self;
		2102
1399	$self->reset; # polite request, might not happen	2103	$self->reset; # polite request, might not happen
1400	}	2104	}
1401		2105
1402	sub customise_for {	2106	=item $maps = cf::map::tmp_maps
1403	my ($map, $ob) = @_;
1404		2107
1405	if ($map->per_player) {	2108	Returns an arrayref with all map paths of currently instantiated and saved
1406	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2109	maps. May block.
		2110
		2111	=cut
		2112
		2113	sub tmp_maps() {
1407	}	2114	[
1408		2115	map {
1409	$map	2116	utf8::decode $_;
		2117	/\.map$/
		2118	? normalise $_
		2119	: ()
		2120	} @{ aio_readdir $TMPDIR or [] }
		2121	]
1410	}	2122	}
1411		2123
1412	sub emergency_save {	2124	=item $maps = cf::map::random_maps
1413	my $freeze_guard = cf::freeze_mainloop;
1414		2125
1415	warn "enter emergency map save\n";	2126	Returns an arrayref with all map paths of currently instantiated and saved
		2127	random maps. May block.
1416		2128
1417	cf::sync_job {	2129	=cut
1418	warn "begin emergency map save\n";
1419	$_->save for values %cf::MAP;
1420	};
1421		2130
1422	warn "end emergency map save\n";	2131	sub random_maps() {
		2132	[
		2133	map {
		2134	utf8::decode $_;
		2135	/\.map$/
		2136	? normalise "?random/$_"
		2137	: ()
		2138	} @{ aio_readdir $RANDOMDIR or [] }
		2139	]
		2140	}
		2141
		2142	=item cf::map::unique_maps
		2143
		2144	Returns an arrayref of paths of all shared maps that have
		2145	instantiated unique items. May block.
		2146
		2147	=cut
		2148
		2149	sub unique_maps() {
		2150	[
		2151	map {
		2152	utf8::decode $_;
		2153	/\.map$/
		2154	? normalise $_
		2155	: ()
		2156	} @{ aio_readdir $UNIQUEDIR or [] }
		2157	]
1423	}	2158	}
1424		2159
1425	package cf;	2160	package cf;
1426		2161
1427	=back	2162	=back
1428		2163
		2164	=head3 cf::object
		2165
		2166	=cut
		2167
		2168	package cf::object;
		2169
		2170	=over 4
		2171
		2172	=item $ob->inv_recursive
		2173
		2174	Returns the inventory of the object _and_ their inventories, recursively.
		2175
		2176	=cut
		2177
		2178	sub inv_recursive_;
		2179	sub inv_recursive_ {
		2180	map { $_, inv_recursive_ $_->inv } @_
		2181	}
		2182
		2183	sub inv_recursive {
		2184	inv_recursive_ inv $_[0]
		2185	}
		2186
		2187	package cf;
		2188
		2189	=back
1429		2190
1430	=head3 cf::object::player	2191	=head3 cf::object::player
1431		2192
1432	=over 4	2193	=over 4
1433		2194
…		…
1447		2208
1448	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2209	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1449		2210
1450	if ($self->{record_replies}) {	2211	if ($self->{record_replies}) {
1451	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2212	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2213
1452	} else {	2214	} else {
		2215	my $pl = $self->contr;
		2216
		2217	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2218	my $diag = $pl->{npc_dialog};
		2219	$diag->{pl}->ext_reply (
		2220	$diag->{id},
		2221	msgtype => "reply",
		2222	msg => $diag->{pl}->expand_cfpod ($msg),
		2223	add_topics => []
		2224	);
		2225
		2226	} else {
1453	$msg = $npc->name . " says: $msg" if $npc;	2227	$msg = $npc->name . " says: $msg" if $npc;
1454	$self->message ($msg, $flags);	2228	$self->message ($msg, $flags);
		2229	}
1455	}	2230	}
1456	}	2231	}
1457		2232
1458	=item $player_object->may ("access")	2233	=item $player_object->may ("access")
1459		2234
…		…
1473		2248
1474	=item $player_object->enter_link	2249	=item $player_object->enter_link
1475		2250
1476	Freezes the player and moves him/her to a special map (C<{link}>).	2251	Freezes the player and moves him/her to a special map (C<{link}>).
1477		2252
1478	The player should be reaosnably safe there for short amounts of time. You	2253	The player should be reasonably safe there for short amounts of time. You
1479	I<MUST> call C<leave_link> as soon as possible, though.	2254	I<MUST> call C<leave_link> as soon as possible, though.
1480		2255
		2256	Will never block.
		2257
1481	=item $player_object->leave_link ($map, $x, $y)	2258	=item $player_object->leave_link ($map, $x, $y)
1482		2259
1483	Moves the player out of the specila link map onto the given map. If the	2260	Moves the player out of the special C<{link}> map onto the specified
1484	map is not valid (or omitted), the player will be moved back to the	2261	map. If the map is not valid (or omitted), the player will be moved back
1485	location he/she was before the call to C<enter_link>, or, if that fails,	2262	to the location he/she was before the call to C<enter_link>, or, if that
1486	to the emergency map position.	2263	fails, to the emergency map position.
1487		2264
1488	Might block.	2265	Might block.
1489		2266
1490	=cut	2267	=cut
		2268
		2269	sub link_map {
		2270	unless ($LINK_MAP) {
		2271	$LINK_MAP = cf::map::find "{link}"
		2272	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2273	$LINK_MAP->load;
		2274	}
		2275
		2276	$LINK_MAP
		2277	}
1491		2278
1492	sub cf::object::player::enter_link {	2279	sub cf::object::player::enter_link {
1493	my ($self) = @_;	2280	my ($self) = @_;
1494		2281
1495	$self->deactivate_recursive;	2282	$self->deactivate_recursive;
1496		2283
1497	return if $self->map == $LINK_MAP;	2284	return if UNIVERSAL::isa $self->map, "ext::map_link";
1498		2285
1499	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2286	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1500	if $self->map;	2287	if $self->map && $self->map->{path} ne "{link}";
1501		2288
1502	$self->enter_map ($LINK_MAP, 20, 20);	2289	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1503	}	2290	}
1504		2291
1505	sub cf::object::player::leave_link {	2292	sub cf::object::player::leave_link {
1506	my ($self, $map, $x, $y) = @_;	2293	my ($self, $map, $x, $y) = @_;
		2294
		2295	return unless $self->contr->active;
1507		2296
1508	my $link_pos = delete $self->{_link_pos};	2297	my $link_pos = delete $self->{_link_pos};
1509		2298
1510	unless ($map) {	2299	unless ($map) {
1511	# restore original map position	2300	# restore original map position
…		…
1525	# use -1 or undef as default coordinates, not 0, 0	2314	# use -1 or undef as default coordinates, not 0, 0
1526	($x, $y) = ($map->enter_x, $map->enter_y)	2315	($x, $y) = ($map->enter_x, $map->enter_y)
1527	if $x <=0 && $y <= 0;	2316	if $x <=0 && $y <= 0;
1528		2317
1529	$map->load;	2318	$map->load;
		2319	$map->load_diag;
1530		2320
		2321	return unless $self->contr->active;
1531	$self->activate_recursive;	2322	$self->activate_recursive;
		2323
		2324	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1532	$self->enter_map ($map, $x, $y);	2325	$self->enter_map ($map, $x, $y);
1533	}	2326	}
1534		2327
1535	cf::player->attach (	2328	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1536	on_logout => sub {
1537	my ($pl) = @_;
1538		2329
1539	# abort map switching before logout	2330	Moves the player to the given map-path and coordinates by first freezing
1540	if ($pl->ob->{_link_pos}) {	2331	her, loading and preparing them map, calling the provided $check callback
1541	cf::sync_job {	2332	that has to return the map if sucecssful, and then unfreezes the player on
1542	$pl->ob->leave_link	2333	the new (success) or old (failed) map position. In either case, $done will
1543	};	2334	be called at the end of this process.
1544	}
1545	},
1546	on_login => sub {
1547	my ($pl) = @_;
1548		2335
1549	# try to abort aborted map switching on player login :)
1550	# should happen only on crashes
1551	if ($pl->ob->{_link_pos}) {
1552
1553	$pl->ob->enter_link;
1554	(async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	$pl->ob->reply (undef,
1558	"There was an internal problem at your last logout, "
1559	. "the server will try to bring you to your intended destination in a second.",
1560	cf::NDI_RED);
1561	Coro::Timer::sleep 1;
1562	$pl->ob->leave_link;
1563	})->prio (2);
1564	}
1565	},
1566	);
1567
1568	=item $player_object->goto ($path, $x, $y)
1569
1570	=cut	2336	=cut
		2337
		2338	our $GOTOGEN;
1571		2339
1572	sub cf::object::player::goto {	2340	sub cf::object::player::goto {
1573	my ($self, $path, $x, $y) = @_;	2341	my ($self, $path, $x, $y, $check, $done) = @_;
		2342
		2343	# do generation counting so two concurrent goto's will be executed in-order
		2344	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1574		2345
1575	$self->enter_link;	2346	$self->enter_link;
1576		2347
1577	(async {	2348	(async {
1578	$path = new cf::path $path;	2349	my $map = eval {
1579
1580	my $map = cf::map::find $path->as_string;	2350	my $map = cf::map::find $path;
		2351
		2352	if ($map) {
1581	$map = $map->customise_for ($self) if $map;	2353	$map = $map->customise_for ($self);
1582		2354	$map = $check->($map) if $check && $map;
1583	# warn "entering ", $map->path, " at ($x, $y)\n"	2355	} else {
1584	# if $map;
1585
1586	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2356	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2357	}
1587		2358
		2359	$map
		2360	};
		2361
		2362	if ($@) {
		2363	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2364	LOG llevError | logBacktrace, Carp::longmess $@;
		2365	}
		2366
		2367	if ($gen == $self->{_goto_generation}) {
		2368	delete $self->{_goto_generation};
1588	$self->leave_link ($map, $x, $y);	2369	$self->leave_link ($map, $x, $y);
		2370	}
		2371
		2372	$done->() if $done;
1589	})->prio (1);	2373	})->prio (1);
1590	}	2374	}
1591		2375
1592	=item $player_object->enter_exit ($exit_object)	2376	=item $player_object->enter_exit ($exit_object)
1593		2377
…		…
1595		2379
1596	sub parse_random_map_params {	2380	sub parse_random_map_params {
1597	my ($spec) = @_;	2381	my ($spec) = @_;
1598		2382
1599	my $rmp = { # defaults	2383	my $rmp = { # defaults
1600	xsize => 10,	2384	xsize => (cf::rndm 15, 40),
1601	ysize => 10,	2385	ysize => (cf::rndm 15, 40),
		2386	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2387	#layout => string,
1602	};	2388	};
1603		2389
1604	for (split /\n/, $spec) {	2390	for (split /\n/, $spec) {
1605	my ($k, $v) = split /\s+/, $_, 2;	2391	my ($k, $v) = split /\s+/, $_, 2;
1606		2392
…		…
1610	$rmp	2396	$rmp
1611	}	2397	}
1612		2398
1613	sub prepare_random_map {	2399	sub prepare_random_map {
1614	my ($exit) = @_;	2400	my ($exit) = @_;
		2401
		2402	my $guard = cf::lock_acquire "exit_prepare:$exit";
1615		2403
1616	# all this does is basically replace the /! path by	2404	# all this does is basically replace the /! path by
1617	# a new random map path (?random/...) with a seed	2405	# a new random map path (?random/...) with a seed
1618	# that depends on the exit object	2406	# that depends on the exit object
1619		2407
1620	my $rmp = parse_random_map_params $exit->msg;	2408	my $rmp = parse_random_map_params $exit->msg;
1621		2409
1622	if ($exit->map) {	2410	if ($exit->map) {
1623	$rmp->{region} = $exit->map->region_name;	2411	$rmp->{region} = $exit->region->name;
1624	$rmp->{origin_map} = $exit->map->path;	2412	$rmp->{origin_map} = $exit->map->path;
1625	$rmp->{origin_x} = $exit->x;	2413	$rmp->{origin_x} = $exit->x;
1626	$rmp->{origin_y} = $exit->y;	2414	$rmp->{origin_y} = $exit->y;
1627	}	2415	}
1628		2416
1629	$rmp->{random_seed} ||= $exit->random_seed;	2417	$rmp->{random_seed} ||= $exit->random_seed;
1630		2418
1631	my $data = cf::to_json $rmp;	2419	my $data = cf::to_json $rmp;
1632	my $md5 = Digest::MD5::md5_hex $data;	2420	my $md5 = Digest::MD5::md5_hex $data;
		2421	my $meta = "$RANDOMDIR/$md5.meta";
1633		2422
1634	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2423	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1635	aio_write $fh, 0, (length $data), $data, 0;	2424	aio_write $fh, 0, (length $data), $data, 0;
		2425	undef $fh;
		2426	aio_rename "$meta~", $meta;
1636		2427
1637	$exit->slaying ("?random/$md5");	2428	$exit->slaying ("?random/$md5");
1638	$exit->msg (undef);	2429	$exit->msg (undef);
1639	}	2430	}
1640	}	2431	}
…		…
1642	sub cf::object::player::enter_exit {	2433	sub cf::object::player::enter_exit {
1643	my ($self, $exit) = @_;	2434	my ($self, $exit) = @_;
1644		2435
1645	return unless $self->type == cf::PLAYER;	2436	return unless $self->type == cf::PLAYER;
1646		2437
		2438	if ($exit->slaying eq "/!") {
		2439	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2440	# the problem is that $exit might not survive long enough
		2441	# so it needs to be done right now, right here
		2442	cf::sync_job { prepare_random_map $exit };
		2443	}
		2444
		2445	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2446	my $hp = $exit->stats->hp;
		2447	my $sp = $exit->stats->sp;
		2448
1647	$self->enter_link;	2449	$self->enter_link;
		2450
		2451	# if exit is damned, update players death & WoR home-position
		2452	$self->contr->savebed ($slaying, $hp, $sp)
		2453	if $exit->flag (FLAG_DAMNED);
1648		2454
1649	(async {	2455	(async {
1650	$self->deactivate_recursive; # just to be sure	2456	$self->deactivate_recursive; # just to be sure
1651	unless (eval {	2457	unless (eval {
1652	prepare_random_map $exit	2458	$self->goto ($slaying, $hp, $sp);
1653	if $exit->slaying eq "/!";
1654
1655	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1656	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1657		2459
1658	1;	2460	1;
1659	}) {	2461	}) {
1660	$self->message ("Something went wrong deep within the crossfire server. "	2462	$self->message ("Something went wrong deep within the crossfire server. "
1661	. "I'll try to bring you back to the map you were before. "	2463	. "I'll try to bring you back to the map you were before. "
1662	. "Please report this to the dungeon master",	2464	. "Please report this to the dungeon master!",
1663	cf::NDI_UNIQUE | cf::NDI_RED);	2465	cf::NDI_UNIQUE | cf::NDI_RED);
1664		2466
1665	warn "ERROR in enter_exit: $@";	2467	warn "ERROR in enter_exit: $@";
1666	$self->leave_link;	2468	$self->leave_link;
1667	}	2469	}
1668	})->prio (1);	2470	})->prio (1);
…		…
1681		2483
1682	sub cf::client::send_drawinfo {	2484	sub cf::client::send_drawinfo {
1683	my ($self, $text, $flags) = @_;	2485	my ($self, $text, $flags) = @_;
1684		2486
1685	utf8::encode $text;	2487	utf8::encode $text;
1686	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2488	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1687	}	2489	}
1688		2490
		2491	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2492
		2493	Send a drawinfo or msg packet to the client, formatting the msg for the
		2494	client if neccessary. C<$type> should be a string identifying the type of
		2495	the message, with C<log> being the default. If C<$color> is negative, suppress
		2496	the message unless the client supports the msg packet.
		2497
		2498	=cut
		2499
		2500	sub cf::client::send_msg {
		2501	my ($self, $channel, $msg, $color, @extra) = @_;
		2502
		2503	$msg = $self->pl->expand_cfpod ($msg);
		2504
		2505	$color &= ~cf::NDI_UNIQUE; # just in case...
		2506
		2507	if (ref $channel) {
		2508	# send meta info to client, if not yet sent
		2509	unless (exists $self->{channel}{$channel->{id}}) {
		2510	$self->{channel}{$channel->{id}} = $channel;
		2511	$self->ext_event (channel_info => %$channel);
		2512	}
		2513
		2514	$channel = $channel->{id};
		2515	}
		2516
		2517	return unless @extra || length $msg;
		2518
		2519	if ($self->can_msg) {
		2520	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2521	} else {
		2522	# replace some tags by gcfclient-compatible ones
		2523	for ($msg) {
		2524	1 while
		2525	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2526	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2527	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2528	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2529	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2530	}
		2531
		2532	if ($color >= 0) {
		2533	if (0 && $msg =~ /\[/) {
		2534	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2535	} else {
		2536	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2537	$self->send_packet ("drawinfo $color $msg")
		2538	}
		2539	}
		2540	}
		2541	}
		2542
		2543	=item $client->ext_event ($type, %msg)
		2544
		2545	Sends an ext event to the client.
		2546
		2547	=cut
		2548
		2549	sub cf::client::ext_event($$%) {
		2550	my ($self, $type, %msg) = @_;
		2551
		2552	return unless $self->extcmd;
		2553
		2554	$msg{msgtype} = "event_$type";
		2555	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2556	}
1689		2557
1690	=item $success = $client->query ($flags, "text", \&cb)	2558	=item $success = $client->query ($flags, "text", \&cb)
1691		2559
1692	Queues a query to the client, calling the given callback with	2560	Queues a query to the client, calling the given callback with
1693	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2561	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1694	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2562	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1695		2563
1696	Queries can fail, so check the return code. Or don't, as queries will become	2564	Queries can fail, so check the return code. Or don't, as queries will
1697	reliable at some point in the future.	2565	become reliable at some point in the future.
1698		2566
1699	=cut	2567	=cut
1700		2568
1701	sub cf::client::query {	2569	sub cf::client::query {
1702	my ($self, $flags, $text, $cb) = @_;	2570	my ($self, $flags, $text, $cb) = @_;
…		…
1710	utf8::encode $text;	2578	utf8::encode $text;
1711	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2579	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1712		2580
1713	$self->send_packet ($self->{query_queue}[0][0])	2581	$self->send_packet ($self->{query_queue}[0][0])
1714	if @{ $self->{query_queue} } == 1;	2582	if @{ $self->{query_queue} } == 1;
		2583
		2584	1
1715	}	2585	}
1716		2586
1717	cf::client->attach (	2587	cf::client->attach (
		2588	on_connect => sub {
		2589	my ($ns) = @_;
		2590
		2591	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2592	},
1718	on_reply => sub {	2593	on_reply => sub {
1719	my ($ns, $msg) = @_;	2594	my ($ns, $msg) = @_;
1720		2595
1721	# this weird shuffling is so that direct followup queries	2596	# this weird shuffling is so that direct followup queries
1722	# get handled first	2597	# get handled first
1723	my $queue = delete $ns->{query_queue}	2598	my $queue = delete $ns->{query_queue}
1724	or return; # be conservative, not sure how that can happen, but we saw a crash here	2599	or return; # be conservative, not sure how that can happen, but we saw a crash here
1725		2600
1726	(shift @$queue)->[1]->($msg);	2601	(shift @$queue)->[1]->($msg);
		2602	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1727		2603
1728	push @{ $ns->{query_queue} }, @$queue;	2604	push @{ $ns->{query_queue} }, @$queue;
1729		2605
1730	if (@{ $ns->{query_queue} } == @$queue) {	2606	if (@{ $ns->{query_queue} } == @$queue) {
1731	if (@$queue) {	2607	if (@$queue) {
…		…
1733	} else {	2609	} else {
1734	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2610	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1735	}	2611	}
1736	}	2612	}
1737	},	2613	},
		2614	on_exticmd => sub {
		2615	my ($ns, $buf) = @_;
		2616
		2617	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2618
		2619	if (ref $msg) {
		2620	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2621	if (my %reply = $cb->($ns, $msg)) {
		2622	$reply{msgid} = $msg->{msgid};
		2623	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2624	}
		2625	}
		2626	} else {
		2627	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2628	}
		2629
		2630	cf::override;
		2631	},
1738	);	2632	);
1739		2633
1740	=item $client->async (\&cb)	2634	=item $client->async (\&cb)
1741		2635
1742	Create a new coroutine, running the specified callback. The coroutine will	2636	Create a new coroutine, running the specified callback. The coroutine will
…		…
1789		2683
1790	# here we export the classes and methods available to script code	2684	# here we export the classes and methods available to script code
1791		2685
1792	=pod	2686	=pod
1793		2687
1794	The following fucntions and emthods are available within a safe environment:	2688	The following functions and methods are available within a safe environment:
1795		2689
1796	cf::object contr pay_amount pay_player map	2690	cf::object
		2691	contr pay_amount pay_player map x y force_find force_add
		2692	insert remove
		2693
1797	cf::object::player player	2694	cf::object::player
1798	cf::player peaceful	2695	player
1799	cf::map trigger	2696
		2697	cf::player
		2698	peaceful
		2699
		2700	cf::map
		2701	trigger
1800		2702
1801	=cut	2703	=cut
1802		2704
1803	for (	2705	for (
1804	["cf::object" => qw(contr pay_amount pay_player map)],	2706	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2707	insert remove)],
1805	["cf::object::player" => qw(player)],	2708	["cf::object::player" => qw(player)],
1806	["cf::player" => qw(peaceful)],	2709	["cf::player" => qw(peaceful)],
1807	["cf::map" => qw(trigger)],	2710	["cf::map" => qw(trigger)],
1808	) {	2711	) {
1809	no strict 'refs';	2712	no strict 'refs';
…		…
1880	=back	2783	=back
1881		2784
1882	=cut	2785	=cut
1883		2786
1884	#############################################################################	2787	#############################################################################
		2788	# the server's init and main functions
1885		2789
1886	=head2 EXTENSION DATABASE SUPPORT	2790	sub load_facedata($) {
		2791	my ($path) = @_;
1887		2792
1888	Crossfire maintains a very simple database for extension use. It can	2793	warn "loading facedata from $path\n";
1889	currently store anything that can be serialised using Storable, which
1890	excludes objects.
1891		2794
1892	The parameter C<$family> should best start with the name of the extension	2795	my $facedata;
1893	using it, it should be unique.	2796	0 < aio_load $path, $facedata
		2797	or die "$path: $!";
1894		2798
1895	=over 4	2799	$facedata = Coro::Storable::thaw $facedata;
1896		2800
1897	=item $hashref = cf::db_get $family	2801	$facedata->{version} == 2
		2802	or cf::cleanup "$path: version mismatch, cannot proceed.";
1898		2803
1899	Return a hashref for use by the extension C<$family>, which can be
1900	modified. After modifications, you have to call C<cf::db_dirty> or
1901	C<cf::db_sync>.
1902
1903	=item $value = cf::db_get $family => $key
1904
1905	Returns a single value from the database
1906
1907	=item cf::db_put $family => $hashref
1908
1909	Stores the given family hashref into the database. Updates are delayed, if
1910	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1911
1912	=item cf::db_put $family => $key => $value
1913
1914	Stores the given C<$value> in the family hash. Updates are delayed, if you
1915	want the data to be synced to disk immediately, use C<cf::db_sync>.
1916
1917	=item cf::db_dirty
1918
1919	Marks the database as dirty, to be updated at a later time.
1920
1921	=item cf::db_sync
1922
1923	Immediately write the database to disk I<if it is dirty>.
1924
1925	=cut
1926
1927	our $DB;
1928
1929	{
1930	my $path = cf::localdir . "/database.pst";
1931
1932	sub db_load() {
1933	$DB = stat $path ? Storable::retrieve $path : { };
1934	}	2804	{
		2805	my $faces = $facedata->{faceinfo};
1935		2806
1936	my $pid;	2807	while (my ($face, $info) = each %$faces) {
		2808	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2809	cf::face::set_visibility $idx, $info->{visibility};
		2810	cf::face::set_magicmap $idx, $info->{magicmap};
		2811	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2812	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1937		2813
1938	sub db_save() {	2814	cf::cede_to_tick;
1939	waitpid $pid, 0 if $pid;
1940	if (0 == ($pid = fork)) {
1941	$DB->{_meta}{version} = 1;
1942	Storable::nstore $DB, "$path~";
1943	rename "$path~", $path;
1944	cf::_exit 0 if defined $pid;
1945	}
1946	}
1947
1948	my $dirty;
1949
1950	sub db_sync() {
1951	db_save if $dirty;
1952	undef $dirty;
1953	}
1954
1955	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1956	db_sync;
1957	});
1958
1959	sub db_dirty() {
1960	$dirty = 1;
1961	$idle->start;
1962	}
1963
1964	sub db_get($;$) {
1965	@_ >= 2
1966	? $DB->{$_[0]}{$_[1]}
1967	: ($DB->{$_[0]} ||= { })
1968	}
1969
1970	sub db_put($$;$) {
1971	if (@_ >= 3) {
1972	$DB->{$_[0]}{$_[1]} = $_[2];
1973	} else {
1974	$DB->{$_[0]} = $_[1];
1975	}
1976	db_dirty;
1977	}
1978
1979	cf::global->attach (
1980	prio => 10000,
1981	on_cleanup => sub {
1982	db_sync;
1983	},	2815	}
1984	);
1985	}
1986		2816
1987	#############################################################################	2817	while (my ($face, $info) = each %$faces) {
1988	# the server's main()	2818	next unless $info->{smooth};
		2819	my $idx = cf::face::find $face
		2820	or next;
		2821	if (my $smooth = cf::face::find $info->{smooth}) {
		2822	cf::face::set_smooth $idx, $smooth;
		2823	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2824	} else {
		2825	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2826	}
		2827
		2828	cf::cede_to_tick;
		2829	}
		2830	}
		2831
		2832	{
		2833	my $anims = $facedata->{animinfo};
		2834
		2835	while (my ($anim, $info) = each %$anims) {
		2836	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2837	cf::cede_to_tick;
		2838	}
		2839
		2840	cf::anim::invalidate_all; # d'oh
		2841	}
		2842
		2843	{
		2844	# TODO: for gcfclient pleasure, we should give resources
		2845	# that gcfclient doesn't grok a >10000 face index.
		2846	my $res = $facedata->{resource};
		2847	my $enc = JSON::XS->new->utf8->canonical;
		2848
		2849	while (my ($name, $info) = each %$res) {
		2850	my $meta = $enc->encode ({
		2851	name => $name,
		2852	type => $info->{type},
		2853	copyright => $info->{copyright}, #TODO#
		2854	});
		2855
		2856	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2857
		2858	if ($name =~ /\.jpg$/) {
		2859	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2860	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2861	} else {
		2862	my $data = pack "(w/a*)*", $meta, $info->{data};
		2863	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2864
		2865	cf::face::set_type $idx, 1;
		2866	cf::face::set_data $idx, 0, $data, $chk;
		2867	}
		2868
		2869	cf::cede_to_tick;
		2870	}
		2871	}
		2872
		2873	1
		2874	}
		2875
		2876	sub reload_regions {
		2877	load_resource_file "$MAPDIR/regions"
		2878	or die "unable to load regions file\n";
		2879
		2880	for (cf::region::list) {
		2881	$_->{match} = qr/$_->{match}/
		2882	if exists $_->{match};
		2883	}
		2884	}
		2885
		2886	sub reload_facedata {
		2887	load_facedata "$DATADIR/facedata"
		2888	or die "unable to load facedata\n";
		2889	}
		2890
		2891	sub reload_archetypes {
		2892	load_resource_file "$DATADIR/archetypes"
		2893	or die "unable to load archetypes\n";
		2894	#d# NEED to laod twice to resolve forward references
		2895	# this really needs to be done in an extra post-pass
		2896	# (which needs to be synchronous, so solve it differently)
		2897	load_resource_file "$DATADIR/archetypes"
		2898	or die "unable to load archetypes\n";
		2899	}
		2900
		2901	sub reload_treasures {
		2902	load_resource_file "$DATADIR/treasures"
		2903	or die "unable to load treasurelists\n";
		2904	}
		2905
		2906	sub reload_resources {
		2907	warn "reloading resource files...\n";
		2908
		2909	reload_regions;
		2910	reload_facedata;
		2911	#reload_archetypes;#d#
		2912	reload_archetypes;
		2913	reload_treasures;
		2914
		2915	warn "finished reloading resource files\n";
		2916	}
		2917
		2918	sub init {
		2919	reload_resources;
		2920	}
1989		2921
1990	sub cfg_load {	2922	sub cfg_load {
1991	open my $fh, "<:utf8", cf::confdir . "/config"	2923	open my $fh, "<:utf8", "$CONFDIR/config"
1992	or return;	2924	or return;
1993		2925
1994	local $/;	2926	local $/;
1995	*CFG = YAML::Syck::Load <$fh>;	2927	*CFG = YAML::Syck::Load <$fh>;
1996		2928
…		…
1999	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	2931	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2000	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	2932	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2001		2933
2002	if (exists $CFG{mlockall}) {	2934	if (exists $CFG{mlockall}) {
2003	eval {	2935	eval {
2004	$CFG{mlockall} ? &mlockall : &munlockall	2936	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2005	and die "WARNING: m(un)lockall failed: $!\n";	2937	and die "WARNING: m(un)lockall failed: $!\n";
2006	};	2938	};
2007	warn $@ if $@;	2939	warn $@ if $@;
2008	}	2940	}
2009	}	2941	}
2010		2942
2011	sub main {	2943	sub main {
2012	# we must not ever block the main coroutine	2944	# we must not ever block the main coroutine
2013	local $Coro::idle = sub {	2945	local $Coro::idle = sub {
2014	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2946	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2947	(async {
2015	async { Event::one_event };	2948	Event::one_event;
		2949	})->prio (Coro::PRIO_MAX);
2016	};	2950	};
2017		2951
2018	cfg_load;	2952	cfg_load;
2019	db_load;	2953	db_init;
2020	load_extensions;	2954	load_extensions;
		2955
		2956	$TICK_WATCHER->start;
2021	Event::loop;	2957	Event::loop;
2022	}	2958	}
2023		2959
2024	#############################################################################	2960	#############################################################################
2025	# initialisation	2961	# initialisation and cleanup
2026		2962
		2963	# install some emergency cleanup handlers
		2964	BEGIN {
		2965	for my $signal (qw(INT HUP TERM)) {
		2966	Event->signal (
		2967	reentrant => 0,
		2968	data => WF_AUTOCANCEL,
		2969	signal => $signal,
		2970	prio => 0,
		2971	cb => sub {
		2972	cf::cleanup "SIG$signal";
		2973	},
		2974	);
		2975	}
		2976	}
		2977
		2978	sub write_runtime {
		2979	my $runtime = "$LOCALDIR/runtime";
		2980
		2981	# first touch the runtime file to show we are still running:
		2982	# the fsync below can take a very very long time.
		2983
		2984	IO::AIO::aio_utime $runtime, undef, undef;
		2985
		2986	my $guard = cf::lock_acquire "write_runtime";
		2987
		2988	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2989	or return;
		2990
		2991	my $value = $cf::RUNTIME + 90 + 10;
		2992	# 10 is the runtime save interval, for a monotonic clock
		2993	# 60 allows for the watchdog to kill the server.
		2994
		2995	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		2996	and return;
		2997
		2998	# always fsync - this file is important
		2999	aio_fsync $fh
		3000	and return;
		3001
		3002	# touch it again to show we are up-to-date
		3003	aio_utime $fh, undef, undef;
		3004
		3005	close $fh
		3006	or return;
		3007
		3008	aio_rename "$runtime~", $runtime
		3009	and return;
		3010
		3011	warn "runtime file written.\n";
		3012
		3013	1
		3014	}
		3015
		3016	sub emergency_save() {
		3017	my $freeze_guard = cf::freeze_mainloop;
		3018
		3019	warn "enter emergency perl save\n";
		3020
		3021	cf::sync_job {
		3022	# use a peculiar iteration method to avoid tripping on perl
		3023	# refcount bugs in for. also avoids problems with players
		3024	# and maps saved/destroyed asynchronously.
		3025	warn "begin emergency player save\n";
		3026	for my $login (keys %cf::PLAYER) {
		3027	my $pl = $cf::PLAYER{$login} or next;
		3028	$pl->valid or next;
		3029	$pl->save;
		3030	}
		3031	warn "end emergency player save\n";
		3032
		3033	warn "begin emergency map save\n";
		3034	for my $path (keys %cf::MAP) {
		3035	my $map = $cf::MAP{$path} or next;
		3036	$map->valid or next;
		3037	$map->save;
		3038	}
		3039	warn "end emergency map save\n";
		3040
		3041	warn "begin emergency database checkpoint\n";
		3042	BDB::db_env_txn_checkpoint $DB_ENV;
		3043	warn "end emergency database checkpoint\n";
		3044	};
		3045
		3046	warn "leave emergency perl save\n";
		3047	}
		3048
		3049	sub post_cleanup {
		3050	my ($make_core) = @_;
		3051
		3052	warn Carp::longmess "post_cleanup backtrace"
		3053	if $make_core;
		3054	}
		3055
2027	sub reload() {	3056	sub do_reload_perl() {
2028	# can/must only be called in main	3057	# can/must only be called in main
2029	if ($Coro::current != $Coro::main) {	3058	if ($Coro::current != $Coro::main) {
2030	warn "can only reload from main coroutine\n";	3059	warn "can only reload from main coroutine";
2031	return;	3060	return;
2032	}	3061	}
2033		3062
2034	warn "reloading...";	3063	warn "reloading...";
2035		3064
2036	my $guard = freeze_mainloop;	3065	warn "entering sync_job";
		3066
		3067	cf::sync_job {
		3068	cf::write_runtime; # external watchdog should not bark
2037	cf::emergency_save;	3069	cf::emergency_save;
		3070	cf::write_runtime; # external watchdog should not bark
2038		3071
2039	eval {	3072	warn "syncing database to disk";
		3073	BDB::db_env_txn_checkpoint $DB_ENV;
		3074
2040	# if anything goes wrong in here, we should simply crash as we already saved	3075	# if anything goes wrong in here, we should simply crash as we already saved
2041		3076
2042	# cancel all watchers	3077	warn "cancelling all WF_AUTOCANCEL watchers";
2043	for (Event::all_watchers) {	3078	for (Event::all_watchers) {
2044	$_->cancel if $_->data & WF_AUTOCANCEL;	3079	$_->cancel if $_->data & WF_AUTOCANCEL;
2045	}	3080	}
2046		3081
		3082	warn "flushing outstanding aio requests";
		3083	for (;;) {
		3084	BDB::flush;
		3085	IO::AIO::flush;
		3086	Coro::cede;
		3087	last unless IO::AIO::nreqs || BDB::nreqs;
		3088	warn "iterate...";
		3089	}
		3090
		3091	++$RELOAD;
		3092
2047	# cancel all extension coros	3093	warn "cancelling all extension coros";
2048	$_->cancel for values %EXT_CORO;	3094	$_->cancel for values %EXT_CORO;
2049	%EXT_CORO = ();	3095	%EXT_CORO = ();
2050		3096
2051	# unload all extensions	3097	warn "removing commands";
2052	for (@exts) {	3098	%COMMAND = ();
		3099
		3100	warn "removing ext/exti commands";
		3101	%EXTCMD = ();
		3102	%EXTICMD = ();
		3103
		3104	warn "unloading/nuking all extensions";
		3105	for my $pkg (@EXTS) {
2053	warn "unloading <$_>";	3106	warn "... unloading $pkg";
2054	unload_extension $_;	3107
		3108	if (my $cb = $pkg->can ("unload")) {
		3109	eval {
		3110	$cb->($pkg);
		3111	1
		3112	} or warn "$pkg unloaded, but with errors: $@";
2055	}	3113	}
2056		3114
		3115	warn "... nuking $pkg";
		3116	Symbol::delete_package $pkg;
		3117	}
		3118
2057	# unload all modules loaded from $LIBDIR	3119	warn "unloading all perl modules loaded from $LIBDIR";
2058	while (my ($k, $v) = each %INC) {	3120	while (my ($k, $v) = each %INC) {
2059	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3121	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2060		3122
2061	warn "removing <$k>";	3123	warn "... unloading $k";
2062	delete $INC{$k};	3124	delete $INC{$k};
2063		3125
2064	$k =~ s/\.pm$//;	3126	$k =~ s/\.pm$//;
2065	$k =~ s/\//::/g;	3127	$k =~ s/\//::/g;
2066		3128
…		…
2069	}	3131	}
2070		3132
2071	Symbol::delete_package $k;	3133	Symbol::delete_package $k;
2072	}	3134	}
2073		3135
2074	# sync database to disk
2075	cf::db_sync;
2076	IO::AIO::flush;
2077
2078	# get rid of safe::, as good as possible	3136	warn "getting rid of safe::, as good as possible";
2079	Symbol::delete_package "safe::$_"	3137	Symbol::delete_package "safe::$_"
2080	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3138	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2081		3139
2082	# remove register_script_function callbacks
2083	# TODO
2084
2085	# unload cf.pm "a bit"	3140	warn "unloading cf.pm \"a bit\"";
2086	delete $INC{"cf.pm"};	3141	delete $INC{"cf.pm"};
		3142	delete $INC{"cf/pod.pm"};
2087		3143
2088	# don't, removes xs symbols, too,	3144	# don't, removes xs symbols, too,
2089	# and global variables created in xs	3145	# and global variables created in xs
2090	#Symbol::delete_package __PACKAGE__;	3146	#Symbol::delete_package __PACKAGE__;
2091		3147
2092	# reload cf.pm	3148	warn "unload completed, starting to reload now";
		3149
2093	warn "reloading cf.pm";	3150	warn "reloading cf.pm";
2094	require cf;	3151	require cf;
2095	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3152	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2096		3153
2097	# load config and database again	3154	warn "loading config and database again";
2098	cf::cfg_load;	3155	cf::cfg_load;
2099	cf::db_load;
2100		3156
2101	# load extensions
2102	warn "load extensions";	3157	warn "loading extensions";
2103	cf::load_extensions;	3158	cf::load_extensions;
2104		3159
2105	# reattach attachments to objects	3160	warn "reattaching attachments to objects/players";
2106	warn "reattach";	3161	_global_reattach; # objects, sockets
2107	_global_reattach;	3162	warn "reattaching attachments to maps";
2108	};	3163	reattach $_ for values %MAP;
		3164	warn "reattaching attachments to players";
		3165	reattach $_ for values %PLAYER;
2109		3166
2110	if ($@) {	3167	warn "leaving sync_job";
		3168
		3169	1
		3170	} or do {
2111	warn $@;	3171	warn $@;
2112	warn "error while reloading, exiting.";	3172	warn "error while reloading, exiting.";
2113	exit 1;	3173	exit 1;
2114	}	3174	};
2115		3175
2116	warn "reloaded successfully";	3176	warn "reloaded";
2117	};	3177	};
2118		3178
2119	#############################################################################	3179	our $RELOAD_WATCHER; # used only during reload
2120		3180
2121	unless ($LINK_MAP) {	3181	sub reload_perl() {
2122	$LINK_MAP = cf::map::new;	3182	# doing reload synchronously and two reloads happen back-to-back,
		3183	# coro crashes during coro_state_free->destroy here.
2123		3184
2124	$LINK_MAP->width (41);	3185	$RELOAD_WATCHER ||= Event->timer (
2125	$LINK_MAP->height (41);	3186	reentrant => 0,
2126	$LINK_MAP->alloc;
2127	$LINK_MAP->path ("{link}");
2128	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2129	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2130
2131	# dirty hack because... archetypes are not yet loaded
2132	Event->timer (
2133	after => 10,	3187	after => 0,
		3188	data => WF_AUTOCANCEL,
2134	cb => sub {	3189	cb => sub {
2135	$_[0]->w->cancel;	3190	do_reload_perl;
2136		3191	undef $RELOAD_WATCHER;
2137	# provide some exits "home"
2138	my $exit = cf::object::new "exit";
2139
2140	$exit->slaying ($EMERGENCY_POSITION->[0]);
2141	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2142	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2143
2144	$LINK_MAP->insert ($exit->clone, 19, 19);
2145	$LINK_MAP->insert ($exit->clone, 19, 20);
2146	$LINK_MAP->insert ($exit->clone, 19, 21);
2147	$LINK_MAP->insert ($exit->clone, 20, 19);
2148	$LINK_MAP->insert ($exit->clone, 20, 21);
2149	$LINK_MAP->insert ($exit->clone, 21, 19);
2150	$LINK_MAP->insert ($exit->clone, 21, 20);
2151	$LINK_MAP->insert ($exit->clone, 21, 21);
2152
2153	$exit->destroy;
2154	});	3192	},
2155		3193	);
2156	$LINK_MAP->{deny_save} = 1;
2157	$LINK_MAP->{deny_reset} = 1;
2158
2159	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2160	}	3194	}
2161
2162	register "<global>", __PACKAGE__;
2163		3195
2164	register_command "reload" => sub {	3196	register_command "reload" => sub {
2165	my ($who, $arg) = @_;	3197	my ($who, $arg) = @_;
2166		3198
2167	if ($who->flag (FLAG_WIZ)) {	3199	if ($who->flag (FLAG_WIZ)) {
2168	$who->message ("start of reload.");
2169	reload;
2170	$who->message ("end of reload.");	3200	$who->message ("reloading server.");
		3201	async { reload_perl };
2171	}	3202	}
2172	};	3203	};
2173		3204
2174	unshift @INC, $LIBDIR;	3205	unshift @INC, $LIBDIR;
2175		3206
		3207	my $bug_warning = 0;
		3208
		3209	our @WAIT_FOR_TICK;
		3210	our @WAIT_FOR_TICK_BEGIN;
		3211
		3212	sub wait_for_tick {
		3213	return unless $TICK_WATCHER->is_active;
		3214	return if $Coro::current == $Coro::main;
		3215
		3216	my $signal = new Coro::Signal;
		3217	push @WAIT_FOR_TICK, $signal;
		3218	$signal->wait;
		3219	}
		3220
		3221	sub wait_for_tick_begin {
		3222	return unless $TICK_WATCHER->is_active;
		3223	return if $Coro::current == $Coro::main;
		3224
		3225	my $signal = new Coro::Signal;
		3226	push @WAIT_FOR_TICK_BEGIN, $signal;
		3227	$signal->wait;
		3228	}
		3229
		3230	my $min = 1e6;#d#
		3231	my $avg = 10;
2176	$TICK_WATCHER = Event->timer (	3232	$TICK_WATCHER = Event->timer (
2177	reentrant => 0,	3233	reentrant => 0,
		3234	parked => 1,
2178	prio => 0,	3235	prio => 0,
2179	at => $NEXT_TICK || $TICK,	3236	at => $NEXT_TICK || $TICK,
2180	data => WF_AUTOCANCEL,	3237	data => WF_AUTOCANCEL,
2181	cb => sub {	3238	cb => sub {
		3239	if ($Coro::current != $Coro::main) {
		3240	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3241	unless ++$bug_warning > 10;
		3242	return;
		3243	}
		3244
		3245	$NOW = $tick_start = Event::time;
		3246
2182	cf::server_tick; # one server iteration	3247	cf::server_tick; # one server iteration
		3248
		3249	0 && sync_job {#d#
		3250	for(1..10) {
		3251	my $t = Event::time;
		3252	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3253	or die;
		3254
		3255	$map->width (50);
		3256	$map->height (50);
		3257	$map->alloc;
		3258	$map->_load_objects ("/tmp/x.map", 1);
		3259	my $t = Event::time - $t;
		3260
		3261	#next unless $t < 0.0013;#d#
		3262	if ($t < $min) {
		3263	$min = $t;
		3264	}
		3265	$avg = $avg * 0.99 + $t * 0.01;
		3266	}
		3267	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3268	exit 0;
		3269	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3270	};
		3271
2183	$RUNTIME += $TICK;	3272	$RUNTIME += $TICK;
2184	$NEXT_TICK += $TICK;	3273	$NEXT_TICK += $TICK;
2185		3274
		3275	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3276	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3277	Coro::async_pool {
		3278	write_runtime
		3279	or warn "ERROR: unable to write runtime file: $!";
		3280	};
		3281	}
		3282
		3283	# my $AFTER = Event::time;
		3284	# warn $AFTER - $NOW;#d#
		3285
		3286	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3287	$sig->send;
		3288	}
		3289	while (my $sig = shift @WAIT_FOR_TICK) {
		3290	$sig->send;
		3291	}
		3292
		3293	$NOW = Event::time;
		3294
2186	# if we are delayed by four ticks or more, skip them all	3295	# if we are delayed by four ticks or more, skip them all
2187	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3296	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2188		3297
2189	$TICK_WATCHER->at ($NEXT_TICK);	3298	$TICK_WATCHER->at ($NEXT_TICK);
2190	$TICK_WATCHER->start;	3299	$TICK_WATCHER->start;
		3300
		3301	$LOAD = ($NOW - $tick_start) / $TICK;
		3302	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3303
		3304	_post_tick;
		3305
		3306
2191	},	3307	},
2192	);	3308	);
2193		3309
		3310	{
2194	IO::AIO::max_poll_time $TICK * 0.2;	3311	BDB::max_poll_time $TICK * 0.1;
2195		3312	$BDB_POLL_WATCHER = Event->io (
2196	Event->io (	3313	reentrant => 0,
2197	fd => IO::AIO::poll_fileno,	3314	fd => BDB::poll_fileno,
2198	poll => 'r',	3315	poll => 'r',
2199	prio => 5,	3316	prio => 0,
2200	data => WF_AUTOCANCEL,
2201	cb => \&IO::AIO::poll_cb,
2202	);
2203
2204	Event->timer (
2205	data => WF_AUTOCANCEL,	3317	data => WF_AUTOCANCEL,
2206	after => 0,	3318	cb => \&BDB::poll_cb,
2207	interval => 10,	3319	);
2208	cb => sub {	3320	BDB::min_parallel 8;
2209	(Coro::unblock_sub {	3321
2210	write_runtime	3322	BDB::set_sync_prepare {
2211	or warn "ERROR: unable to write runtime file: $!";	3323	my $status;
		3324	my $current = $Coro::current;
		3325	(
		3326	sub {
		3327	$status = $!;
		3328	$current->ready; undef $current;
		3329	},
		3330	sub {
		3331	Coro::schedule while defined $current;
		3332	$! = $status;
		3333	},
		3334	)
		3335	};
		3336
		3337	unless ($DB_ENV) {
		3338	$DB_ENV = BDB::db_env_create;
		3339
		3340	cf::sync_job {
		3341	eval {
		3342	BDB::db_env_open
		3343	$DB_ENV,
		3344	$BDBDIR,
		3345	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3346	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3347	0666;
		3348
		3349	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3350
		3351	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3352	$DB_ENV->set_lk_detect;
		3353	};
		3354
		3355	cf::cleanup "db_env_open(db): $@" if $@;
2212	})->();	3356	};
2213	},	3357	}
2214	);	3358	}
		3359
		3360	{
		3361	IO::AIO::min_parallel 8;
		3362
		3363	undef $Coro::AIO::WATCHER;
		3364	IO::AIO::max_poll_time $TICK * 0.1;
		3365	$AIO_POLL_WATCHER = Event->io (
		3366	reentrant => 0,
		3367	data => WF_AUTOCANCEL,
		3368	fd => IO::AIO::poll_fileno,
		3369	poll => 'r',
		3370	prio => 6,
		3371	cb => \&IO::AIO::poll_cb,
		3372	);
		3373	}
		3374
		3375	my $_log_backtrace;
		3376
		3377	sub _log_backtrace {
		3378	my ($msg, @addr) = @_;
		3379
		3380	$msg =~ s/\n//;
		3381
		3382	# limit the # of concurrent backtraces
		3383	if ($_log_backtrace < 2) {
		3384	++$_log_backtrace;
		3385	async {
		3386	my @bt = fork_call {
		3387	@addr = map { sprintf "%x", $_ } @addr;
		3388	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3389	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3390	or die "addr2line: $!";
		3391
		3392	my @funcs;
		3393	my @res = <$fh>;
		3394	chomp for @res;
		3395	while (@res) {
		3396	my ($func, $line) = splice @res, 0, 2, ();
		3397	push @funcs, "[$func] $line";
		3398	}
		3399
		3400	@funcs
		3401	};
		3402
		3403	LOG llevInfo, "[ABT] $msg\n";
		3404	LOG llevInfo, "[ABT] $_\n" for @bt;
		3405	--$_log_backtrace;
		3406	};
		3407	} else {
		3408	LOG llevInfo, "[ABT] $msg\n";
		3409	LOG llevInfo, "[ABT] [suppressed]\n";
		3410	}
		3411	}
		3412
		3413	# load additional modules
		3414	use cf::pod;
2215		3415
2216	END { cf::emergency_save }	3416	END { cf::emergency_save }
2217		3417
2218	1	3418	1
2219		3419

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