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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.154 by root, Tue Jan 9 15:36:19 2007 UTC vs.
Revision 1.325 by root, Sat Jul 28 14:32:22 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
28		43
29	# 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?
30	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
31		46
32	$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
33		48
34	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
39		59
		60	our $RELOAD; # number of reloads so far
40	our @EVENT;	61	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		62
43	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(!)
44	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	79	our $NEXT_TICK;
46	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;
47		85
48	our %CFG;	86	our %CFG;
49		87
50	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	89	our $RUNTIME;
52		90
53	our %PLAYER; # all users	91	our %PLAYER; # all users
54	our %MAP; # all maps	92	our %MAP; # all maps
55	our $LINK_MAP; # the special {link} map	93	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";	94
57	our %EXT_CORO; # coroutines bound to extensions	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 $tick_start; # for load detecting purposes
58		101
59	binmode STDOUT;	102	binmode STDOUT;
60	binmode STDERR;	103	binmode STDERR;
61		104
62	# read virtual server time, if available	105	# read virtual server time, if available
63	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
64	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
65	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
66	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
67	}	110	}
68		111
69	mkdir cf::localdir;	112	mkdir $_
70	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
71	mkdir cf::localdir . "/" . cf::tmpdir;
72	mkdir cf::localdir . "/" . cf::uniquedir;
73	mkdir $RANDOM_MAPS;
74		114
75	# a special map that is always available
76	our $LINK_MAP;
77	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
		116
		117	sub cf::map::normalise;
78		118
79	#############################################################################	119	#############################################################################
80		120
81	=head2 GLOBAL VARIABLES	121	=head2 GLOBAL VARIABLES
82		122
…		…
89	=item $cf::RUNTIME	129	=item $cf::RUNTIME
90		130
91	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
92	every server tick.	132	every server tick.
93		133
94	=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
95		137
96	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
97	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.
98		142
99	=item $cf::NOW	143	=item $cf::NOW
100		144
101	The time of the last (current) server tick.	145	The time of the last (current) server tick.
102		146
103	=item $cf::TICK	147	=item $cf::TICK
104		148
105	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.
106		160
107	=item %cf::CFG	161	=item %cf::CFG
108		162
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	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.
111		177
112	=back	178	=back
113		179
114	=cut	180	=cut
115		181
116	BEGIN {	182	BEGIN {
117	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	184	my $msg = join "", @_;
119	utf8::encode $msg;
120		185
121	$msg .= "\n"	186	$msg .= "\n"
122	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
123		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
124	LOG llevError, $msg;	192	LOG llevError, $msg;
125	};	193	};
126	}	194	}
127		195
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		203
135	# 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
136	# within the Safe compartment.	205	# within the Safe compartment.
137	for my $pkg (qw(	206	for my $pkg (qw(
138	cf::global cf::attachable	207	cf::global cf::attachable
…		…
147		216
148	$Event::DIED = sub {	217	$Event::DIED = sub {
149	warn "error in event callback: @_";	218	warn "error in event callback: @_";
150	};	219	};
151		220
152	my %ext_pkg;	221	#############################################################################
153	my @exts;
154	my @hook;
155		222
156	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
157		224
158	=over 4	225	=over 4
159		226
…		…
178	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
179	$d	246	$d
180	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
181	}	248	}
182		249
183	use JSON::Syck (); # TODO# replace by JSON::PC once working
184
185	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
186		251
187	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
188		253
189	=cut
190
191	sub from_json($) {
192	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
193	JSON::Syck::Load $_[0]
194	}
195
196	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
197		255
198	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
199		257
200	=cut	258	=cut
201		259
202	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
203	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
204	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
205	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
206		264
207	=item cf::lock_wait $string	265	=item cf::lock_wait $string
208		266
209	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
210		268
…		…
216	returned.	274	returned.
217		275
218	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
219	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
220		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
221	=cut	283	=cut
222		284
223	our %LOCK;	285	our %LOCK;
224		286
225	sub lock_wait($) {	287	sub lock_wait($) {
…		…
244	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
246	}	308	}
247	}	309	}
248		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
249	sub freeze_mainloop {	317	sub freeze_mainloop {
250	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
251		319
252	my $guard = Coro::guard { $TICK_WATCHER->start };	320	my $guard = Coro::guard {
		321	$TICK_WATCHER->start;
		322	};
253	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
254	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
255	}	381	}
256		382
257	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
258		384
259	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
264		390
265	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
266		392
267	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
268		394
269	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
270	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
271	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
272		399
273	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
274	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
275	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
276	fast or be very important.	403	fast or be very important.
…		…
279		406
280	sub sync_job(&) {	407	sub sync_job(&) {
281	my ($job) = @_;	408	my ($job) = @_;
282		409
283	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
284	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
285	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
286		415
287	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
288	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
299		428
300	while ($busy) {	429	while ($busy) {
301	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
302	}	431	}
303		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
304	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
305	} else {	441	} else {
306	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
307		443
308	$job->()	444	$job->()
309	}	445	}
310	}	446	}
311		447
312	=item $coro = cf::async_ext { BLOCK }	448	=item $coro = cf::async_ext { BLOCK }
313		449
314	Like async, but this coro is automcatially being canceled when the	450	Like async, but this coro is automatically being canceled when the
315	extension calling this is being unloaded.	451	extension calling this is being unloaded.
316		452
317	=cut	453	=cut
318		454
319	sub async_ext(&) {	455	sub async_ext(&) {
…		…
327	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
328		464
329	$coro	465	$coro
330	}	466	}
331		467
332	sub write_runtime {	468	=item fork_call { }, $args
333	my $runtime = cf::localdir . "/runtime";
334		469
335	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
336	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
337		474
338	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	475	=cut
339	(aio_write $fh, 0, (length $value), $value, 0) <= 0
340	and return;
341		476
342	aio_fsync $fh	477	sub _store_scalar {
343	and return;	478	open my $fh, ">", \my $buf
344		479	or die "fork_call: cannot open fh-to-buf in child : $!";
		480	Storable::store_fd $_[0], $fh;
345	close $fh	481	close $fh;
346	or return;
347		482
348	aio_rename "$runtime~", $runtime	483	$buf
349	and return;	484	}
350		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
351	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
352	}	655	}
353		656
354	=back	657	=back
355		658
356	=cut	659	=cut
357
358	#############################################################################
359
360	package cf::path;
361
362	# used to convert map paths into valid unix filenames by repalcing / by ∕
363	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
364
365	sub new {
366	my ($class, $path, $base) = @_;
367
368	$path = $path->as_string if ref $path;
369
370	my $self = bless { }, $class;
371
372	# {... are special paths that are not touched
373	# ?xxx/... are special absolute paths
374	# ?random/... random maps
375	# /! non-realised random map exit
376	# /... normal maps
377	# ~/... per-player maps without a specific player (DO NOT USE)
378	# ~user/... per-player map of a specific user
379
380	if ($path =~ /^{/) {
381	# fine as it is
382	} elsif ($path =~ s{^\?random/}{}) {
383	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
384	$self->{random} = cf::from_json $data;
385	} else {
386	if ($path =~ s{^~([^/]+)?}{}) {
387	$self->{user_rel} = 1;
388
389	if (defined $1) {
390	$self->{user} = $1;
391	} elsif ($base =~ m{^~([^/]+)/}) {
392	$self->{user} = $1;
393	} else {
394	warn "cannot resolve user-relative path without user <$path,$base>\n";
395	}
396	} elsif ($path =~ /^\//) {
397	# already absolute
398	} else {
399	$base =~ s{[^/]+/?$}{};
400	return $class->new ("$base/$path");
401	}
402
403	for ($path) {
404	redo if s{/\.?/}{/};
405	redo if s{/[^/]+/\.\./}{/};
406	}
407	}
408
409	$self->{path} = $path;
410
411	$self
412	}
413
414	# the name / primary key / in-game path
415	sub as_string {
416	my ($self) = @_;
417
418	$self->{user_rel} ? "~$self->{user}$self->{path}"
419	: $self->{random} ? "?random/$self->{path}"
420	: $self->{path}
421	}
422
423	# the displayed name, this is a one way mapping
424	sub visible_name {
425	my ($self) = @_;
426
427	# if (my $rmp = $self->{random}) {
428	# # todo: be more intelligent about this
429	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
430	# } else {
431	$self->as_string
432	# }
433	}
434
435	# escape the /'s in the path
436	sub _escaped_path {
437	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
438	$path
439	}
440
441	# the original (read-only) location
442	sub load_path {
443	my ($self) = @_;
444
445	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
446	}
447
448	# the temporary/swap location
449	sub save_path {
450	my ($self) = @_;
451
452	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
453	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
454	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
455	}
456
457	# the unique path, might be eq to save_path
458	sub uniq_path {
459	my ($self) = @_;
460
461	$self->{user_rel} || $self->{random}
462	? undef
463	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
464	}
465
466	# return random map parameters, or undef
467	sub random_map_params {
468	my ($self) = @_;
469
470	$self->{random}
471	}
472
473	# this is somewhat ugly, but style maps do need special treatment
474	sub is_style_map {
475	$_[0]{path} =~ m{^/styles/}
476	}
477
478	package cf;
479		660
480	#############################################################################	661	#############################################################################
481		662
482	=head2 ATTACHABLE OBJECTS	663	=head2 ATTACHABLE OBJECTS
483		664
…		…
485	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
486	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
487		668
488	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
489	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
490	crossfire+).	671	Crossfire TRT).
491		672
492	=over 4	673	=over 4
493		674
494	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
495		676
…		…
609	our @CB_TYPE = (); # registry for type (cf-object class) based events	790	our @CB_TYPE = (); # registry for type (cf-object class) based events
610	our @CB_MAP = ();	791	our @CB_MAP = ();
611		792
612	my %attachment;	793	my %attachment;
613		794
		795	sub cf::attachable::thawer_merge {
		796	# simply override everything except _meta
		797	local $_[0]{_meta};
		798	%{$_[0]} = %{$_[1]};
		799	}
		800
614	sub _attach_cb($$$$) {	801	sub _attach_cb($$$$) {
615	my ($registry, $event, $prio, $cb) = @_;	802	my ($registry, $event, $prio, $cb) = @_;
616		803
617	use sort 'stable';	804	use sort 'stable';
618		805
…		…
652	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
653		840
654	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
655	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
656	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
657	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
658		845
659	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
660	my $pkg = shift @arg;	847	my $pkg = shift @arg;
661		848
662	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
691	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
692	}	879	}
693		880
694	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
695	} else {	882	} else {
696	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
697	}	884	}
698		885
699	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
700	}	887	}
701		888
…		…
703	if (ref $_[0]) {	890	if (ref $_[0]) {
704	_object_attach @_;	891	_object_attach @_;
705	} else {	892	} else {
706	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
707	}	894	}
		895	_recalc_want;
708	};	896	};
709		897
710	# all those should be optimised	898	# all those should be optimised
711	sub cf::attachable::detach {	899	sub cf::attachable::detach {
712	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
715	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
716	reattach ($obj);	904	reattach ($obj);
717	} else {	905	} else {
718	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
719	}	907	}
		908	_recalc_want;
720	};	909	};
721		910
722	sub cf::attachable::attached {	911	sub cf::attachable::attached {
723	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
724		913
…		…
739	";	928	";
740	die if $@;	929	die if $@;
741	}	930	}
742		931
743	our $override;	932	our $override;
744	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
745		934
746	sub override {	935	sub override {
747	$override = 1;	936	$override = 1;
748	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
749	}	938	}
750		939
751	sub do_invoke {	940	sub do_invoke {
752	my $event = shift;	941	my $event = shift;
753	my $callbacks = shift;	942	my $callbacks = shift;
754		943
755	@invoke_results = ();	944	@INVOKE_RESULTS = ();
756		945
757	local $override;	946	local $override;
758		947
759	for (@$callbacks) {	948	for (@$callbacks) {
760	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
777		966
778	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
779		968
780	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
781	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
782	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
783		972
784	=back	973	=back
785		974
786	=cut	975	=cut
787		976
788	#############################################################################	977	#############################################################################
789	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
790		990
791	sub reattach {	991	sub reattach {
792	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
793	my ($obj) = @_;	993	my ($obj) = @_;
		994
		995	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
794		996
795	my $registry = $obj->registry;	997	my $registry = $obj->registry;
796		998
797	@$registry = ();	999	@$registry = ();
798		1000
…		…
845	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
846		1048
847	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
848	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
849	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
850	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
851	close $fh;	1053	close $fh;
852		1054
853	if (@$objs) {	1055	if (@$objs) {
854	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
855	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
856	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
857	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
858	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
859	close $fh;	1061	close $fh;
860	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
861	}	1063	}
862	} else {	1064	} else {
863	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
895	or return;	1097	or return;
896	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
897	}	1099	}
898		1100
899	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
900	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
901	return ($data, $av);	1103	return ($data, $av);
902	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
903		1111
904	#############################################################################	1112	#############################################################################
905	# command handling &c	1113	# command handling &c
906		1114
907	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
920	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
921	}	1129	}
922		1130
923	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
924		1132
925	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
926		1138
927	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
928	called.	1140	called.
929		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
930	=cut	1153	=cut
931		1154
932	sub register_extcmd {	1155	sub register_extcmd {
933	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
934		1157
935	my $caller = caller;
936	#warn "registering extcmd '$name' to '$caller'";
937
938	$EXTCMD{$name} = [$cb, $caller];	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
939	}	1165	}
940		1166
941	cf::player->attach (	1167	cf::player->attach (
942	on_command => sub {	1168	on_command => sub {
943	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
952	cf::override;	1178	cf::override;
953	},	1179	},
954	on_extcmd => sub {	1180	on_extcmd => sub {
955	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
956		1182
957	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
958		1184
959	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
960	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
961	if (my %reply = $cb->[0]->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
962	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
963	}	1195	if $reply;
964	}	1196	}
965	} else {	1197	} else {
966	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
967	}	1199	}
968		1200
969	cf::override;	1201	cf::override;
970	},	1202	},
971	);	1203	);
972		1204
973	sub register {
974	my ($base, $pkg) = @_;
975
976	#TODO
977	}
978
979	sub load_extension {
980	my ($path) = @_;
981
982	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
983	my $base = $1;
984	my $pkg = $1;
985	$pkg =~ s/[^[:word:]]/_/g;
986	$pkg = "ext::$pkg";
987
988	warn "loading '$path' into '$pkg'\n";
989
990	open my $fh, "<:utf8", $path
991	or die "$path: $!";
992
993	my $source =
994	"package $pkg; use strict; use utf8;\n"
995	. "#line 1 \"$path\"\n{\n"
996	. (do { local $/; <$fh> })
997	. "\n};\n1";
998
999	eval $source
1000	or die $@ ? "$path: $@\n"
1001	: "extension disabled.\n";
1002
1003	push @exts, $pkg;
1004	$ext_pkg{$base} = $pkg;
1005
1006	# no strict 'refs';
1007	# @{"$pkg\::ISA"} = ext::;
1008
1009	register $base, $pkg;
1010	}
1011
1012	sub unload_extension {
1013	my ($pkg) = @_;
1014
1015	warn "removing extension $pkg\n";
1016
1017	# remove hooks
1018	#TODO
1019	# for my $idx (0 .. $#PLUGIN_EVENT) {
1020	# delete $hook[$idx]{$pkg};
1021	# }
1022
1023	# remove commands
1024	for my $name (keys %COMMAND) {
1025	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1026
1027	if (@cb) {
1028	$COMMAND{$name} = \@cb;
1029	} else {
1030	delete $COMMAND{$name};
1031	}
1032	}
1033
1034	# remove extcmds
1035	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1036	delete $EXTCMD{$name};
1037	}
1038
1039	if (my $cb = $pkg->can ("unload")) {
1040	eval {
1041	$cb->($pkg);
1042	1
1043	} or warn "$pkg unloaded, but with errors: $@";
1044	}
1045
1046	Symbol::delete_package $pkg;
1047	}
1048
1049	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
1050	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
1051	next unless -r $ext;	1210	next unless -r $path;
1052	eval {	1211
1053	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
1054	1	1269	}
1055	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
1056	}	1275	};
1057	}	1276	}
1058		1277
1059	#############################################################################	1278	#############################################################################
1060	# load/save/clean perl data associated with a map
1061		1279
1062	*cf::mapsupport::on_clean = sub {	1280	=back
1063	my ($map) = @_;
1064
1065	my $path = $map->tmpname;
1066	defined $path or return;
1067
1068	unlink "$path.pst";
1069	};
1070
1071	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1072
1073	#############################################################################
1074	# load/save perl data associated with player->ob objects
1075
1076	sub all_objects(@) {
1077	@_, map all_objects ($_->inv), @_
1078	}
1079
1080	# TODO: compatibility cruft, remove when no longer needed
1081	cf::player->attach (
1082	on_load => sub {
1083	my ($pl, $path) = @_;
1084
1085	for my $o (all_objects $pl->ob) {
1086	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1087	$o->set_ob_key_value ("_perl_data");
1088
1089	%$o = %{ Storable::thaw pack "H*", $value };
1090	}
1091	}
1092	},
1093	);
1094
1095	#############################################################################
1096		1281
1097	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
1098		1283
1099	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
1100		1285
…		…
1113	Returns the given player object, loading it if necessary (might block).	1298	Returns the given player object, loading it if necessary (might block).
1114		1299
1115	=cut	1300	=cut
1116		1301
1117	sub playerdir($) {	1302	sub playerdir($) {
1118	cf::localdir	1303	"$PLAYERDIR/"
1119	. "/"
1120	. cf::playerdir
1121	. "/"
1122	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1123	}	1305	}
1124		1306
1125	sub path($) {	1307	sub path($) {
1126	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1127		1309
1128	(playerdir $login) . "/$login.pl"	1310	(playerdir $login) . "/playerdata"
1129	}	1311	}
1130		1312
1131	sub find_active($) {	1313	sub find_active($) {
1132	$cf::PLAYER{$_[0]}	1314	$cf::PLAYER{$_[0]}
1133	and $cf::PLAYER{$_[0]}->active	1315	and $cf::PLAYER{$_[0]}->active
…		…
1136		1318
1137	sub exists($) {	1319	sub exists($) {
1138	my ($login) = @_;	1320	my ($login) = @_;
1139		1321
1140	$cf::PLAYER{$login}	1322	$cf::PLAYER{$login}
1141	or cf::sync_job { !aio_stat $login }	1323	or cf::sync_job { !aio_stat path $login }
1142	}	1324	}
1143		1325
1144	sub find($) {	1326	sub find($) {
1145	return $cf::PLAYER{$_[0]} || do {	1327	return $cf::PLAYER{$_[0]} || do {
1146	my $login = $_[0];	1328	my $login = $_[0];
1147		1329
1148	my $guard = cf::lock_acquire "user_find:$login";	1330	my $guard = cf::lock_acquire "user_find:$login";
1149		1331
1150	$cf::PLAYER{$_[0]} || do {	1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
1151	my $pl = load_pl path $login	1340	my $pl = load_pl path $login
1152	or return;	1341	or return;
1153	$cf::PLAYER{$login} = $pl	1342	$cf::PLAYER{$login} = $pl
1154	}	1343	}
1155	}	1344	}
…		…
1192		1381
1193	=cut	1382	=cut
1194		1383
1195	sub quit_character {	1384	sub quit_character {
1196	my ($pl) = @_;	1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
1197		1388
1198	$pl->{deny_save} = 1;	1389	$pl->{deny_save} = 1;
1199	$pl->password ("*"); # this should lock out the player until we nuked the dir	1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
1200		1391
1201	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1206	my $path = playerdir $pl;	1397	my $path = playerdir $pl;
1207	my $temp = "$path~$cf::RUNTIME~deleting~";	1398	my $temp = "$path~$cf::RUNTIME~deleting~";
1208	aio_rename $path, $temp;	1399	aio_rename $path, $temp;
1209	delete $cf::PLAYER{$pl->ob->name};	1400	delete $cf::PLAYER{$pl->ob->name};
1210	$pl->destroy;	1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
1211	IO::AIO::aio_rmtree $temp;	1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
1212	}	1423	}
1213		1424
1214	=item cf::player::list_logins	1425	=item cf::player::list_logins
1215		1426
1216	Returns am arrayref of all valid playernames in the system, can take a	1427	Returns am arrayref of all valid playernames in the system, can take a
1217	while and may block, so not sync_job-capable, ever.	1428	while and may block, so not sync_job-capable, ever.
1218		1429
1219	=cut	1430	=cut
1220		1431
1221	sub list_logins {	1432	sub list_logins {
1222	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1433	my $dirs = aio_readdir $PLAYERDIR
1223	or return [];	1434	or return [];
1224		1435
1225	my @logins;	1436	my @logins;
1226		1437
1227	for my $login (@$dirs) {	1438	for my $login (@$dirs) {
1228	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1439	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
1229	aio_read $fh, 0, 512, my $buf, 0 or next;	1440	aio_read $fh, 0, 512, my $buf, 0 or next;
1230	$buf !~ /^password -------------$/ or next; # official not-valid tag	1441	$buf !~ /^password -------------$/m or next; # official not-valid tag
1231		1442
1232	utf8::decode $login;	1443	utf8::decode $login;
1233	push @logins, $login;	1444	push @logins, $login;
1234	}	1445	}
1235		1446
1236	\@logins	1447	\@logins
1237	}	1448	}
1238		1449
1239	=item $player->maps	1450	=item $player->maps
1240		1451
1241	Returns an arrayref of cf::path's of all maps that are private for this	1452	Returns an arrayref of map paths that are private for this
1242	player. May block.	1453	player. May block.
1243		1454
1244	=cut	1455	=cut
1245		1456
1246	sub maps($) {	1457	sub maps($) {
1247	my ($pl) = @_;	1458	my ($pl) = @_;
		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
1248		1461
1249	my $files = aio_readdir playerdir $pl	1462	my $files = aio_readdir playerdir $pl
1250	or return;	1463	or return;
1251		1464
1252	my @paths;	1465	my @paths;
1253		1466
1254	for (@$files) {	1467	for (@$files) {
1255	utf8::decode $_;	1468	utf8::decode $_;
1256	next if /\.(?:pl|pst)$/;	1469	next if /\.(?:pl|pst)$/;
1257	next unless /^$PATH_SEP/;	1470	next unless /^$PATH_SEP/o;
1258		1471
1259	s/$PATH_SEP/\//g;	1472	push @paths, cf::map::normalise "~$pl/$_";
1260	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1261	}	1473	}
1262		1474
1263	\@paths	1475	\@paths
1264	}	1476	}
1265		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
1266	=item $player->ext_reply ($msgid, $msgtype, %msg)	1528	=item $player->ext_reply ($msgid, @msg)
1267		1529
1268	Sends an ext reply to the player.	1530	Sends an ext reply to the player.
1269		1531
1270	=cut	1532	=cut
1271		1533
1272	sub ext_reply($$$%) {	1534	sub ext_reply($$@) {
1273	my ($self, $id, %msg) = @_;	1535	my ($self, $id, @msg) = @_;
1274		1536
1275	$msg{msgid} = $id;	1537	if ($self->ns->extcmd == 2) {
1276		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1277	$self->send ("ext " . cf::to_json \%msg);	1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
1278	}	1544	}
1279		1545
1280	package cf;	1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
		1573	my ($path) = @_;
		1574
		1575	my ($match, $specificity);
		1576
		1577	for my $region (list) {
		1578	if ($region->{match} && $path =~ $region->{match}) {
		1579	($match, $specificity) = ($region, $region->specificity)
		1580	if $region->specificity > $specificity;
		1581	}
		1582	}
		1583
		1584	$match
		1585	}
1281		1586
1282	=back	1587	=back
1283
1284		1588
1285	=head3 cf::map	1589	=head3 cf::map
1286		1590
1287	=over 4	1591	=over 4
1288		1592
…		…
1291	package cf::map;	1595	package cf::map;
1292		1596
1293	use Fcntl;	1597	use Fcntl;
1294	use Coro::AIO;	1598	use Coro::AIO;
1295		1599
		1600	use overload
		1601	'""' => \&as_string,
		1602	fallback => 1;
		1603
1296	our $MAX_RESET = 3600;	1604	our $MAX_RESET = 3600;
1297	our $DEFAULT_RESET = 3000;	1605	our $DEFAULT_RESET = 3000;
1298		1606
1299	sub generate_random_map {	1607	sub generate_random_map {
1300	my ($path, $rmp) = @_;	1608	my ($self, $rmp) = @_;
1301
1302	# mit "rum" bekleckern, nicht	1609	# mit "rum" bekleckern, nicht
1303	cf::map::_create_random_map	1610	$self->_create_random_map (
1304	$path,
1305	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1611	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1306	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1612	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1307	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1613	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1308	$rmp->{exit_on_final_map},	1614	$rmp->{exit_on_final_map},
1309	$rmp->{xsize}, $rmp->{ysize},	1615	$rmp->{xsize}, $rmp->{ysize},
1310	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1616	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1311	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1617	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1312	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1618	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1313	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1619	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1314	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1620	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1315	(cf::region::find $rmp->{region})	1621	(cf::region::find $rmp->{region}), $rmp->{custom}
		1622	)
		1623	}
		1624
		1625	=item cf::map->register ($regex, $prio)
		1626
		1627	Register a handler for the map path matching the given regex at the
		1628	givne priority (higher is better, built-in handlers have priority 0, the
		1629	default).
		1630
		1631	=cut
		1632
		1633	sub register {
		1634	my (undef, $regex, $prio) = @_;
		1635	my $pkg = caller;
		1636
		1637	no strict;
		1638	push @{"$pkg\::ISA"}, __PACKAGE__;
		1639
		1640	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1641	}
		1642
		1643	# also paths starting with '/'
		1644	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1645
		1646	sub thawer_merge {
		1647	my ($self, $merge) = @_;
		1648
		1649	# we have to keep some variables in memory intact
		1650	local $self->{path};
		1651	local $self->{load_path};
		1652
		1653	$self->SUPER::thawer_merge ($merge);
		1654	}
		1655
		1656	sub normalise {
		1657	my ($path, $base) = @_;
		1658
		1659	$path = "$path"; # make sure its a string
		1660
		1661	$path =~ s/\.map$//;
		1662
		1663	# map plan:
		1664	#
		1665	# /! non-realised random map exit (special hack!)
		1666	# {... are special paths that are not being touched
		1667	# ?xxx/... are special absolute paths
		1668	# ?random/... random maps
		1669	# /... normal maps
		1670	# ~user/... per-player map of a specific user
		1671
		1672	$path =~ s/$PATH_SEP/\//go;
		1673
		1674	# treat it as relative path if it starts with
		1675	# something that looks reasonable
		1676	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1677	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1678
		1679	$base =~ s{[^/]+/?$}{};
		1680	$path = "$base/$path";
		1681	}
		1682
		1683	for ($path) {
		1684	redo if s{//}{/};
		1685	redo if s{/\.?/}{/};
		1686	redo if s{/[^/]+/\.\./}{/};
		1687	}
		1688
		1689	$path
		1690	}
		1691
		1692	sub new_from_path {
		1693	my (undef, $path, $base) = @_;
		1694
		1695	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1696
		1697	$path = normalise $path, $base;
		1698
		1699	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1700	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1701	my $self = bless cf::map::new, $pkg;
		1702	$self->{path} = $path; $self->path ($path);
		1703	$self->init; # pass $1 etc.
		1704	return $self;
		1705	}
		1706	}
		1707
		1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1709	()
		1710	}
		1711
		1712	sub init {
		1713	my ($self) = @_;
		1714
		1715	$self
		1716	}
		1717
		1718	sub as_string {
		1719	my ($self) = @_;
		1720
		1721	"$self->{path}"
		1722	}
		1723
		1724	# the displayed name, this is a one way mapping
		1725	sub visible_name {
		1726	&as_string
		1727	}
		1728
		1729	# the original (read-only) location
		1730	sub load_path {
		1731	my ($self) = @_;
		1732
		1733	"$MAPDIR/$self->{path}.map"
		1734	}
		1735
		1736	# the temporary/swap location
		1737	sub save_path {
		1738	my ($self) = @_;
		1739
		1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1741	"$TMPDIR/$path.map"
		1742	}
		1743
		1744	# the unique path, undef == no special unique path
		1745	sub uniq_path {
		1746	my ($self) = @_;
		1747
		1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1749	"$UNIQUEDIR/$path"
1316	}	1750	}
1317		1751
1318	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1319	# all maps in C++...	1753	# all maps in C++...
1320	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1322		1756
1323	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1324	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1325	}	1759	}
1326		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
		1769	sub unlink_save {
		1770	my ($self) = @_;
		1771
		1772	utf8::encode (my $save = $self->save_path);
		1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1774	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1775	}
		1776
1327	sub try_load_header($) {	1777	sub load_header_from($) {
1328	my ($path) = @_;	1778	my ($self, $path) = @_;
1329		1779
1330	utf8::encode $path;	1780	utf8::encode $path;
1331	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
		1782	# or return;
		1783
		1784	$self->_load_header ($path)
1332	or return;	1785	or return;
1333		1786
1334	my $map = cf::map::new	1787	$self->{load_path} = $path;
		1788
		1789	1
		1790	}
		1791
		1792	sub load_header_orig {
		1793	my ($self) = @_;
		1794
		1795	$self->load_header_from ($self->load_path)
		1796	}
		1797
		1798	sub load_header_temp {
		1799	my ($self) = @_;
		1800
		1801	$self->load_header_from ($self->save_path)
		1802	}
		1803
		1804	sub prepare_temp {
		1805	my ($self) = @_;
		1806
		1807	$self->last_access ((delete $self->{last_access})
		1808	|| $cf::RUNTIME); #d#
		1809	# safety
		1810	$self->{instantiate_time} = $cf::RUNTIME
		1811	if $self->{instantiate_time} > $cf::RUNTIME;
		1812	}
		1813
		1814	sub prepare_orig {
		1815	my ($self) = @_;
		1816
		1817	$self->{load_original} = 1;
		1818	$self->{instantiate_time} = $cf::RUNTIME;
		1819	$self->last_access ($cf::RUNTIME);
		1820	$self->instantiate;
		1821	}
		1822
		1823	sub load_header {
		1824	my ($self) = @_;
		1825
		1826	if ($self->load_header_temp) {
		1827	$self->prepare_temp;
		1828	} else {
		1829	$self->load_header_orig
1335	or return;	1830	or return;
		1831	$self->prepare_orig;
		1832	}
1336		1833
1337	# for better error messages only, will be overwritten	1834	$self->{deny_reset} = 1
1338	$map->path ($path);	1835	if $self->no_reset;
1339		1836
1340	$map->load_header ($path)	1837	$self->default_region (cf::region::find_by_path $self->{path})
1341	or return;	1838	unless $self->default_region;
1342		1839
1343	$map->{load_path} = $path;	1840	1
1344
1345	$map
1346	}	1841	}
1347		1842
1348	sub find;	1843	sub find;
1349	sub find {	1844	sub find {
1350	my ($path, $origin) = @_;	1845	my ($path, $origin) = @_;
1351		1846
1352	#warn "find<$path,$origin>\n";#d#
1353
1354	$path = new cf::path $path, $origin && $origin->path;	1847	$path = normalise $path, $origin && $origin->path;
1355	my $key = $path->as_string;
1356		1848
1357	cf::lock_wait "map_find:$key";	1849	cf::lock_wait "map_find:$path";
1358		1850
1359	$cf::MAP{$key} || do {	1851	$cf::MAP{$path} || do {
1360	my $guard = cf::lock_acquire "map_find:$key";	1852	my $guard = cf::lock_acquire "map_find:$path";
1361		1853	my $map = new_from_path cf::map $path
1362	# do it the slow way
1363	my $map = try_load_header $path->save_path;
1364
1365	Coro::cede;
1366
1367	if ($map) {
1368	$map->last_access ((delete $map->{last_access})
1369	|| $cf::RUNTIME); #d#
1370	# safety
1371	$map->{instantiate_time} = $cf::RUNTIME
1372	if $map->{instantiate_time} > $cf::RUNTIME;
1373	} else {
1374	if (my $rmp = $path->random_map_params) {
1375	$map = generate_random_map $key, $rmp;
1376	} else {
1377	$map = try_load_header $path->load_path;
1378	}
1379
1380	$map or return;	1854	or return;
1381		1855
1382	$map->{load_original} = 1;
1383	$map->{instantiate_time} = $cf::RUNTIME;
1384	$map->last_access ($cf::RUNTIME);
1385	$map->instantiate;
1386
1387	# per-player maps become, after loading, normal maps
1388	$map->per_player (0) if $path->{user_rel};
1389	}
1390
1391	$map->path ($key);
1392	$map->{path} = $path;
1393	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1394		1857
1395	Coro::cede;	1858	$map->load_header
		1859	or return;
1396		1860
1397	if ($map->should_reset) {	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1862	# doing this can freeze the server in a sync job, obviously
		1863	#$cf::WAIT_FOR_TICK->wait;
1398	$map->reset;	1864	$map->reset;
1399	undef $guard;	1865	undef $guard;
1400	$map = find $path	1866	return find $path;
1401	or return;
1402	}	1867	}
1403		1868
1404	$cf::MAP{$key} = $map	1869	$cf::MAP{$path} = $map
1405	}	1870	}
1406	}	1871	}
		1872
		1873	sub pre_load { }
		1874	sub post_load { }
1407		1875
1408	sub load {	1876	sub load {
1409	my ($self) = @_;	1877	my ($self) = @_;
1410		1878
		1879	local $self->{deny_reset} = 1; # loading can take a long time
		1880
1411	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1412	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1884	my $guard = cf::lock_acquire "map_load:$path";
1413		1885
1414	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1415		1887
1416	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1417		1889
1418	$self->alloc;	1890	$self->alloc;
		1891
		1892	$self->pre_load;
		1893	Coro::cede;
		1894
1419	$self->load_objects ($self->{load_path}, 1)	1895	$self->_load_objects ($self->{load_path}, 1)
1420	or return;	1896	or return;
1421		1897
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	1899	if delete $self->{load_original};
1424		1900
1425	if (my $uniq = $path->uniq_path) {	1901	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	1902	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	1903	if (aio_open $uniq, O_RDONLY, 0) {
1428	$self->clear_unique_items;	1904	$self->clear_unique_items;
1429	$self->load_objects ($uniq, 0);	1905	$self->_load_objects ($uniq, 0);
1430	}	1906	}
1431	}	1907	}
1432		1908
1433	Coro::cede;	1909	Coro::cede;
1434
1435	# now do the right thing for maps	1910	# now do the right thing for maps
1436	$self->link_multipart_objects;	1911	$self->link_multipart_objects;
1437
1438	if ($self->{path}->is_style_map) {
1439	$self->{deny_save} = 1;
1440	$self->{deny_reset} = 1;
1441	} else {
1442	$self->fix_auto_apply;
1443	$self->decay_objects;
1444	$self->update_buttons;
1445	$self->set_darkness_map;
1446	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1447	unless $self->difficulty;	1913	unless $self->difficulty;
		1914	Coro::cede;
		1915
		1916	unless ($self->{deny_activate}) {
		1917	$self->decay_objects;
		1918	$self->fix_auto_apply;
		1919	$self->update_buttons;
		1920	Coro::cede;
		1921	$self->set_darkness_map;
		1922	Coro::cede;
1448	$self->activate;	1923	$self->activate;
1449	}	1924	}
1450		1925
1451	Coro::cede;	1926	$self->{last_save} = $cf::RUNTIME;
		1927	$self->last_access ($cf::RUNTIME);
1452		1928
1453	$self->in_memory (cf::MAP_IN_MEMORY);	1929	$self->in_memory (cf::MAP_IN_MEMORY);
		1930	}
		1931
		1932	$self->post_load;
		1933	}
		1934
		1935	sub customise_for {
		1936	my ($self, $ob) = @_;
		1937
		1938	return find "~" . $ob->name . "/" . $self->{path}
		1939	if $self->per_player;
		1940
		1941	# return find "?party/" . $ob->name . "/" . $self->{path}
		1942	# if $self->per_party;
		1943
		1944	$self
		1945	}
		1946
		1947	# find and load all maps in the 3x3 area around a map
		1948	sub load_diag {
		1949	my ($map) = @_;
		1950
		1951	my @diag; # diagonal neighbours
		1952
		1953	for (0 .. 3) {
		1954	my $neigh = $map->tile_path ($_)
		1955	or next;
		1956	$neigh = find $neigh, $map
		1957	or next;
		1958	$neigh->load;
		1959
		1960	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1961	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1962	}
		1963
		1964	for (@diag) {
		1965	my $neigh = find @$_
		1966	or next;
		1967	$neigh->load;
		1968	}
1454	}	1969	}
1455		1970
1456	sub find_sync {	1971	sub find_sync {
1457	my ($path, $origin) = @_;	1972	my ($path, $origin) = @_;
1458		1973
1459	cf::sync_job { cf::map::find $path, $origin }	1974	cf::sync_job { find $path, $origin }
1460	}	1975	}
1461		1976
1462	sub do_load_sync {	1977	sub do_load_sync {
1463	my ($map) = @_;	1978	my ($map) = @_;
1464		1979
1465	cf::sync_job { $map->load };	1980	cf::sync_job { $map->load };
1466	}	1981	}
1467		1982
		1983	our %MAP_PREFETCH;
		1984	our $MAP_PREFETCHER = undef;
		1985
		1986	sub find_async {
		1987	my ($path, $origin) = @_;
		1988
		1989	$path = normalise $path, $origin && $origin->{path};
		1990
		1991	if (my $map = $cf::MAP{$path}) {
		1992	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1993	}
		1994
		1995	undef $MAP_PREFETCH{$path};
		1996	$MAP_PREFETCHER ||= cf::async {
		1997	while (%MAP_PREFETCH) {
		1998	for my $path (keys %MAP_PREFETCH) {
		1999	if (my $map = find $path) {
		2000	$map->load;
		2001	}
		2002
		2003	delete $MAP_PREFETCH{$path};
		2004	}
		2005	}
		2006	undef $MAP_PREFETCHER;
		2007	};
		2008	$MAP_PREFETCHER->prio (6);
		2009
		2010	()
		2011	}
		2012
1468	sub save {	2013	sub save {
1469	my ($self) = @_;	2014	my ($self) = @_;
1470		2015
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	2016	my $lock = cf::lock_acquire "map_data:" . $self->path;
1472		2017
1473	$self->{last_save} = $cf::RUNTIME;	2018	$self->{last_save} = $cf::RUNTIME;
1474		2019
1475	return unless $self->dirty;	2020	return unless $self->dirty;
1476		2021
1477	my $save = $self->{path}->save_path; utf8::encode $save;	2022	my $save = $self->save_path; utf8::encode $save;
1478	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2023	my $uniq = $self->uniq_path; utf8::encode $uniq;
1479		2024
1480	$self->{load_path} = $save;	2025	$self->{load_path} = $save;
1481		2026
1482	return if $self->{deny_save};	2027	return if $self->{deny_save};
1483		2028
…		…
1486	cf::async {	2031	cf::async {
1487	$_->contr->save for $self->players;	2032	$_->contr->save for $self->players;
1488	};	2033	};
1489		2034
1490	if ($uniq) {	2035	if ($uniq) {
1491	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2036	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1492	$self->save_objects ($uniq, cf::IO_UNIQUES);	2037	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1493	} else {	2038	} else {
1494	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2039	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1495	}	2040	}
1496	}	2041	}
1497		2042
1498	sub swap_out {	2043	sub swap_out {
1499	my ($self) = @_;	2044	my ($self) = @_;
…		…
1513		2058
1514	sub reset_at {	2059	sub reset_at {
1515	my ($self) = @_;	2060	my ($self) = @_;
1516		2061
1517	# TODO: safety, remove and allow resettable per-player maps	2062	# TODO: safety, remove and allow resettable per-player maps
1518	return 1e99 if $self->{path}{user_rel};
1519	return 1e99 if $self->{deny_reset};	2063	return 1e99 if $self->{deny_reset};
1520		2064
1521	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2065	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1522	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2066	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1523		2067
…		…
1528	my ($self) = @_;	2072	my ($self) = @_;
1529		2073
1530	$self->reset_at <= $cf::RUNTIME	2074	$self->reset_at <= $cf::RUNTIME
1531	}	2075	}
1532		2076
1533	sub unlink_save {
1534	my ($self) = @_;
1535
1536	utf8::encode (my $save = $self->{path}->save_path);
1537	aioreq_pri 3; IO::AIO::aio_unlink $save;
1538	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1539	}
1540
1541	sub rename {
1542	my ($self, $new_path) = @_;
1543
1544	$self->unlink_save;
1545
1546	delete $cf::MAP{$self->path};
1547	$self->{path} = new cf::path $new_path;
1548	$self->path ($self->{path}->as_string);
1549	$cf::MAP{$self->path} = $self;
1550
1551	$self->save;
1552	}
1553
1554	sub reset {	2077	sub reset {
1555	my ($self) = @_;	2078	my ($self) = @_;
1556		2079
1557	my $lock = cf::lock_acquire "map_data:" . $self->path;	2080	my $lock = cf::lock_acquire "map_data:$self->{path}";
1558		2081
1559	return if $self->players;	2082	return if $self->players;
1560	return if $self->{path}{user_rel};#d#
1561		2083
1562	warn "resetting map ", $self->path;#d#	2084	warn "resetting map ", $self->path;
		2085
		2086	$self->in_memory (cf::MAP_SWAPPED);
		2087
		2088	# need to save uniques path
		2089	unless ($self->{deny_save}) {
		2090	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2091
		2092	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2093	if $uniq;
		2094	}
1563		2095
1564	delete $cf::MAP{$self->path};	2096	delete $cf::MAP{$self->path};
		2097
		2098	$self->clear;
1565		2099
1566	$_->clear_links_to ($self) for values %cf::MAP;	2100	$_->clear_links_to ($self) for values %cf::MAP;
1567		2101
1568	$self->unlink_save;	2102	$self->unlink_save;
1569	$self->destroy;	2103	$self->destroy;
…		…
1572	my $nuke_counter = "aaaa";	2106	my $nuke_counter = "aaaa";
1573		2107
1574	sub nuke {	2108	sub nuke {
1575	my ($self) = @_;	2109	my ($self) = @_;
1576		2110
		2111	delete $cf::MAP{$self->path};
		2112
		2113	$self->unlink_save;
		2114
		2115	bless $self, "cf::map";
		2116	delete $self->{deny_reset};
1577	$self->{deny_save} = 1;	2117	$self->{deny_save} = 1;
1578	$self->reset_timeout (1);	2118	$self->reset_timeout (1);
1579	$self->rename ("{nuke}/" . ($nuke_counter++));	2119	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2120
		2121	$cf::MAP{$self->path} = $self;
		2122
1580	$self->reset; # polite request, might not happen	2123	$self->reset; # polite request, might not happen
1581	}	2124	}
1582		2125
1583	sub customise_for {	2126	=item $maps = cf::map::tmp_maps
1584	my ($map, $ob) = @_;
1585		2127
1586	if ($map->per_player) {	2128	Returns an arrayref with all map paths of currently instantiated and saved
1587	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2129	maps. May block.
		2130
		2131	=cut
		2132
		2133	sub tmp_maps() {
1588	}	2134	[
1589		2135	map {
1590	$map	2136	utf8::decode $_;
		2137	/\.map$/
		2138	? normalise $_
		2139	: ()
		2140	} @{ aio_readdir $TMPDIR or [] }
		2141	]
1591	}	2142	}
1592		2143
1593	sub emergency_save {	2144	=item $maps = cf::map::random_maps
1594	my $freeze_guard = cf::freeze_mainloop;
1595		2145
1596	warn "enter emergency perl save\n";	2146	Returns an arrayref with all map paths of currently instantiated and saved
		2147	random maps. May block.
1597		2148
1598	cf::sync_job {	2149	=cut
1599	warn "begin emergency player save\n";
1600	$_->save for values %cf::PLAYER;
1601	warn "end emergency player save\n";
1602		2150
1603	warn "begin emergency map save\n";	2151	sub random_maps() {
1604	$_->save for values %cf::MAP;	2152	[
1605	warn "end emergency map save\n";	2153	map {
1606	};	2154	utf8::decode $_;
		2155	/\.map$/
		2156	? normalise "?random/$_"
		2157	: ()
		2158	} @{ aio_readdir $RANDOMDIR or [] }
		2159	]
		2160	}
1607		2161
1608	warn "leave emergency perl save\n";	2162	=item cf::map::unique_maps
		2163
		2164	Returns an arrayref of paths of all shared maps that have
		2165	instantiated unique items. May block.
		2166
		2167	=cut
		2168
		2169	sub unique_maps() {
		2170	[
		2171	map {
		2172	utf8::decode $_;
		2173	/\.map$/
		2174	? normalise $_
		2175	: ()
		2176	} @{ aio_readdir $UNIQUEDIR or [] }
		2177	]
1609	}	2178	}
1610		2179
1611	package cf;	2180	package cf;
1612		2181
1613	=back	2182	=back
1614		2183
		2184	=head3 cf::object
		2185
		2186	=cut
		2187
		2188	package cf::object;
		2189
		2190	=over 4
		2191
		2192	=item $ob->inv_recursive
		2193
		2194	Returns the inventory of the object _and_ their inventories, recursively.
		2195
		2196	=cut
		2197
		2198	sub inv_recursive_;
		2199	sub inv_recursive_ {
		2200	map { $_, inv_recursive_ $_->inv } @_
		2201	}
		2202
		2203	sub inv_recursive {
		2204	inv_recursive_ inv $_[0]
		2205	}
		2206
		2207	package cf;
		2208
		2209	=back
1615		2210
1616	=head3 cf::object::player	2211	=head3 cf::object::player
1617		2212
1618	=over 4	2213	=over 4
1619		2214
…		…
1633		2228
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2229	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2230
1636	if ($self->{record_replies}) {	2231	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2232	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2233
1638	} else {	2234	} else {
		2235	my $pl = $self->contr;
		2236
		2237	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2238	my $dialog = $pl->{npc_dialog};
		2239	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2240
		2241	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2242	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2243	$self->message ($msg, $flags);
		2244	}
1641	}	2245	}
1642	}	2246	}
1643		2247
1644	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1645		2249
…		…
1659		2263
1660	=item $player_object->enter_link	2264	=item $player_object->enter_link
1661		2265
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2266	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2267
1664	The player should be reaosnably safe there for short amounts of time. You	2268	The player should be reasonably safe there for short amounts of time. You
1665	I<MUST> call C<leave_link> as soon as possible, though.	2269	I<MUST> call C<leave_link> as soon as possible, though.
1666		2270
		2271	Will never block.
		2272
1667	=item $player_object->leave_link ($map, $x, $y)	2273	=item $player_object->leave_link ($map, $x, $y)
1668		2274
1669	Moves the player out of the specila link map onto the given map. If the	2275	Moves the player out of the special C<{link}> map onto the specified
1670	map is not valid (or omitted), the player will be moved back to the	2276	map. If the map is not valid (or omitted), the player will be moved back
1671	location he/she was before the call to C<enter_link>, or, if that fails,	2277	to the location he/she was before the call to C<enter_link>, or, if that
1672	to the emergency map position.	2278	fails, to the emergency map position.
1673		2279
1674	Might block.	2280	Might block.
1675		2281
1676	=cut	2282	=cut
		2283
		2284	sub link_map {
		2285	unless ($LINK_MAP) {
		2286	$LINK_MAP = cf::map::find "{link}"
		2287	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2288	$LINK_MAP->load;
		2289	}
		2290
		2291	$LINK_MAP
		2292	}
1677		2293
1678	sub cf::object::player::enter_link {	2294	sub cf::object::player::enter_link {
1679	my ($self) = @_;	2295	my ($self) = @_;
1680		2296
1681	$self->deactivate_recursive;	2297	$self->deactivate_recursive;
1682		2298
1683	return if $self->map == $LINK_MAP;	2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
1684		2300
1685	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1686	if $self->map;	2302	if $self->map && $self->map->{path} ne "{link}";
1687		2303
1688	$self->enter_map ($LINK_MAP, 20, 20);	2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1689	}	2305	}
1690		2306
1691	sub cf::object::player::leave_link {	2307	sub cf::object::player::leave_link {
1692	my ($self, $map, $x, $y) = @_;	2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
1693		2311
1694	my $link_pos = delete $self->{_link_pos};	2312	my $link_pos = delete $self->{_link_pos};
1695		2313
1696	unless ($map) {	2314	unless ($map) {
1697	# restore original map position	2315	# restore original map position
…		…
1711	# use -1 or undef as default coordinates, not 0, 0	2329	# use -1 or undef as default coordinates, not 0, 0
1712	($x, $y) = ($map->enter_x, $map->enter_y)	2330	($x, $y) = ($map->enter_x, $map->enter_y)
1713	if $x <=0 && $y <= 0;	2331	if $x <=0 && $y <= 0;
1714		2332
1715	$map->load;	2333	$map->load;
		2334	$map->load_diag;
1716		2335
1717	return unless $self->contr->active;	2336	return unless $self->contr->active;
1718	$self->activate_recursive;	2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1719	$self->enter_map ($map, $x, $y);	2340	$self->enter_map ($map, $x, $y);
1720	}	2341	}
1721		2342
1722	cf::player->attach (	2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1723	on_logout => sub {
1724	my ($pl) = @_;
1725		2344
1726	# abort map switching before logout	2345	Moves the player to the given map-path and coordinates by first freezing
1727	if ($pl->ob->{_link_pos}) {	2346	her, loading and preparing them map, calling the provided $check callback
1728	cf::sync_job {	2347	that has to return the map if sucecssful, and then unfreezes the player on
1729	$pl->ob->leave_link	2348	the new (success) or old (failed) map position. In either case, $done will
1730	};	2349	be called at the end of this process.
1731	}
1732	},
1733	on_login => sub {
1734	my ($pl) = @_;
1735		2350
1736	# try to abort aborted map switching on player login :)
1737	# should happen only on crashes
1738	if ($pl->ob->{_link_pos}) {
1739	$pl->ob->enter_link;
1740	(async {
1741	# we need this sleep as the login has a concurrent enter_exit running
1742	# and this sleep increases chances of the player not ending up in scorn
1743	$pl->ob->reply (undef,
1744	"There was an internal problem at your last logout, "
1745	. "the server will try to bring you to your intended destination in a second.",
1746	cf::NDI_RED);
1747	Coro::Timer::sleep 1;
1748	$pl->ob->leave_link;
1749	})->prio (2);
1750	}
1751	},
1752	);
1753
1754	=item $player_object->goto ($path, $x, $y)
1755
1756	=cut	2351	=cut
		2352
		2353	our $GOTOGEN;
1757		2354
1758	sub cf::object::player::goto {	2355	sub cf::object::player::goto {
1759	my ($self, $path, $x, $y) = @_;	2356	my ($self, $path, $x, $y, $check, $done) = @_;
1760		2357
1761	$path = new cf::path $path;	2358	# do generation counting so two concurrent goto's will be executed in-order
1762	$path ne "/" or Carp::cluck ("oy");#d#	2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1763		2360
1764	$self->enter_link;	2361	$self->enter_link;
1765		2362
1766	(async {	2363	(async {
		2364	my $map = eval {
1767	my $map = cf::map::find $path->as_string;	2365	my $map = cf::map::find $path;
		2366
		2367	if ($map) {
1768	$map = $map->customise_for ($self) if $map;	2368	$map = $map->customise_for ($self);
1769		2369	$map = $check->($map) if $check && $map;
1770	# warn "entering ", $map->path, " at ($x, $y)\n"	2370	} else {
1771	# if $map;
1772
1773	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2371	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2372	}
1774		2373
		2374	$map
		2375	};
		2376
		2377	if ($@) {
		2378	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2379	LOG llevError | logBacktrace, Carp::longmess $@;
		2380	}
		2381
		2382	if ($gen == $self->{_goto_generation}) {
		2383	delete $self->{_goto_generation};
1775	$self->leave_link ($map, $x, $y);	2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
1776	})->prio (1);	2388	})->prio (1);
1777	}	2389	}
1778		2390
1779	=item $player_object->enter_exit ($exit_object)	2391	=item $player_object->enter_exit ($exit_object)
1780		2392
…		…
1782		2394
1783	sub parse_random_map_params {	2395	sub parse_random_map_params {
1784	my ($spec) = @_;	2396	my ($spec) = @_;
1785		2397
1786	my $rmp = { # defaults	2398	my $rmp = { # defaults
1787	xsize => 10,	2399	xsize => (cf::rndm 15, 40),
1788	ysize => 10,	2400	ysize => (cf::rndm 15, 40),
		2401	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2402	#layout => string,
1789	};	2403	};
1790		2404
1791	for (split /\n/, $spec) {	2405	for (split /\n/, $spec) {
1792	my ($k, $v) = split /\s+/, $_, 2;	2406	my ($k, $v) = split /\s+/, $_, 2;
1793		2407
…		…
1797	$rmp	2411	$rmp
1798	}	2412	}
1799		2413
1800	sub prepare_random_map {	2414	sub prepare_random_map {
1801	my ($exit) = @_;	2415	my ($exit) = @_;
		2416
		2417	my $guard = cf::lock_acquire "exit_prepare:$exit";
1802		2418
1803	# all this does is basically replace the /! path by	2419	# all this does is basically replace the /! path by
1804	# a new random map path (?random/...) with a seed	2420	# a new random map path (?random/...) with a seed
1805	# that depends on the exit object	2421	# that depends on the exit object
1806		2422
1807	my $rmp = parse_random_map_params $exit->msg;	2423	my $rmp = parse_random_map_params $exit->msg;
1808		2424
1809	if ($exit->map) {	2425	if ($exit->map) {
1810	$rmp->{region} = $exit->map->region_name;	2426	$rmp->{region} = $exit->region->name;
1811	$rmp->{origin_map} = $exit->map->path;	2427	$rmp->{origin_map} = $exit->map->path;
1812	$rmp->{origin_x} = $exit->x;	2428	$rmp->{origin_x} = $exit->x;
1813	$rmp->{origin_y} = $exit->y;	2429	$rmp->{origin_y} = $exit->y;
1814	}	2430	}
1815		2431
1816	$rmp->{random_seed} ||= $exit->random_seed;	2432	$rmp->{random_seed} ||= $exit->random_seed;
1817		2433
1818	my $data = cf::to_json $rmp;	2434	my $data = cf::to_json $rmp;
1819	my $md5 = Digest::MD5::md5_hex $data;	2435	my $md5 = Digest::MD5::md5_hex $data;
		2436	my $meta = "$RANDOMDIR/$md5.meta";
1820		2437
1821	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2438	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1822	aio_write $fh, 0, (length $data), $data, 0;	2439	aio_write $fh, 0, (length $data), $data, 0;
		2440	undef $fh;
		2441	aio_rename "$meta~", $meta;
1823		2442
1824	$exit->slaying ("?random/$md5");	2443	$exit->slaying ("?random/$md5");
1825	$exit->msg (undef);	2444	$exit->msg (undef);
1826	}	2445	}
1827	}	2446	}
…		…
1829	sub cf::object::player::enter_exit {	2448	sub cf::object::player::enter_exit {
1830	my ($self, $exit) = @_;	2449	my ($self, $exit) = @_;
1831		2450
1832	return unless $self->type == cf::PLAYER;	2451	return unless $self->type == cf::PLAYER;
1833		2452
		2453	if ($exit->slaying eq "/!") {
		2454	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2455	# the problem is that $exit might not survive long enough
		2456	# so it needs to be done right now, right here
		2457	cf::sync_job { prepare_random_map $exit };
		2458	}
		2459
		2460	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2461	my $hp = $exit->stats->hp;
		2462	my $sp = $exit->stats->sp;
		2463
1834	$self->enter_link;	2464	$self->enter_link;
		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
1835		2469
1836	(async {	2470	(async {
1837	$self->deactivate_recursive; # just to be sure	2471	$self->deactivate_recursive; # just to be sure
1838	unless (eval {	2472	unless (eval {
1839	prepare_random_map $exit	2473	$self->goto ($slaying, $hp, $sp);
1840	if $exit->slaying eq "/!";
1841
1842	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1843	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1844		2474
1845	1;	2475	1;
1846	}) {	2476	}) {
1847	$self->message ("Something went wrong deep within the crossfire server. "	2477	$self->message ("Something went wrong deep within the crossfire server. "
1848	. "I'll try to bring you back to the map you were before. "	2478	. "I'll try to bring you back to the map you were before. "
1849	. "Please report this to the dungeon master",	2479	. "Please report this to the dungeon master!",
1850	cf::NDI_UNIQUE | cf::NDI_RED);	2480	cf::NDI_UNIQUE | cf::NDI_RED);
1851		2481
1852	warn "ERROR in enter_exit: $@";	2482	warn "ERROR in enter_exit: $@";
1853	$self->leave_link;	2483	$self->leave_link;
1854	}	2484	}
1855	})->prio (1);	2485	})->prio (1);
…		…
1868		2498
1869	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
1870	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
1871		2501
1872	utf8::encode $text;	2502	utf8::encode $text;
1873	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1874	}	2504	}
1875		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	sub cf::client::send_msg {
		2516	my ($self, $channel, $msg, $color, @extra) = @_;
		2517
		2518	$msg = $self->pl->expand_cfpod ($msg);
		2519
		2520	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2521
		2522	if (ref $channel) {
		2523	# send meta info to client, if not yet sent
		2524	unless (exists $self->{channel}{$channel->{id}}) {
		2525	$self->{channel}{$channel->{id}} = $channel;
		2526	$self->ext_msg (channel_info => $channel);
		2527	}
		2528
		2529	$channel = $channel->{id};
		2530	}
		2531
		2532	return unless @extra || length $msg;
		2533
		2534	if ($self->can_msg) {
		2535	# default colour, mask it out
		2536	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2537	if $color & cf::NDI_DEF;
		2538
		2539	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2540	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2541	} else {
		2542	if ($color >= 0) {
		2543	# replace some tags by gcfclient-compatible ones
		2544	for ($msg) {
		2545	1 while
		2546	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2547	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2548	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2549	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2550	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2551	}
		2552
		2553	$color &= cf::NDI_COLOR_MASK;
		2554
		2555	if (0 && $msg =~ /\[/) {
		2556	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2557	} else {
		2558	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2559	$self->send_packet ("drawinfo $color $msg")
		2560	}
		2561	}
		2562	}
		2563	}
		2564
		2565	=item $client->ext_msg ($type, @msg)
		2566
		2567	Sends an ext event to the client.
		2568
		2569	=cut
		2570
		2571	sub cf::client::ext_msg($$@) {
		2572	my ($self, $type, @msg) = @_;
		2573
		2574	my $extcmd = $self->extcmd;
		2575
		2576	if ($extcmd == 2) {
		2577	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2578	} elsif ($extcmd == 1) { # TODO: remove
		2579	push @msg, msgtype => "event_$type";
		2580	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2581	}
		2582	}
1876		2583
1877	=item $success = $client->query ($flags, "text", \&cb)	2584	=item $success = $client->query ($flags, "text", \&cb)
1878		2585
1879	Queues a query to the client, calling the given callback with	2586	Queues a query to the client, calling the given callback with
1880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2587	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2588	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1882		2589
1883	Queries can fail, so check the return code. Or don't, as queries will become	2590	Queries can fail, so check the return code. Or don't, as queries will
1884	reliable at some point in the future.	2591	become reliable at some point in the future.
1885		2592
1886	=cut	2593	=cut
1887		2594
1888	sub cf::client::query {	2595	sub cf::client::query {
1889	my ($self, $flags, $text, $cb) = @_;	2596	my ($self, $flags, $text, $cb) = @_;
…		…
1897	utf8::encode $text;	2604	utf8::encode $text;
1898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2605	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1899		2606
1900	$self->send_packet ($self->{query_queue}[0][0])	2607	$self->send_packet ($self->{query_queue}[0][0])
1901	if @{ $self->{query_queue} } == 1;	2608	if @{ $self->{query_queue} } == 1;
		2609
		2610	1
1902	}	2611	}
1903		2612
1904	cf::client->attach (	2613	cf::client->attach (
		2614	on_connect => sub {
		2615	my ($ns) = @_;
		2616
		2617	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2618	},
1905	on_reply => sub {	2619	on_reply => sub {
1906	my ($ns, $msg) = @_;	2620	my ($ns, $msg) = @_;
1907		2621
1908	# this weird shuffling is so that direct followup queries	2622	# this weird shuffling is so that direct followup queries
1909	# get handled first	2623	# get handled first
1910	my $queue = delete $ns->{query_queue}	2624	my $queue = delete $ns->{query_queue}
1911	or return; # be conservative, not sure how that can happen, but we saw a crash here	2625	or return; # be conservative, not sure how that can happen, but we saw a crash here
1912		2626
1913	(shift @$queue)->[1]->($msg);	2627	(shift @$queue)->[1]->($msg);
		2628	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1914		2629
1915	push @{ $ns->{query_queue} }, @$queue;	2630	push @{ $ns->{query_queue} }, @$queue;
1916		2631
1917	if (@{ $ns->{query_queue} } == @$queue) {	2632	if (@{ $ns->{query_queue} } == @$queue) {
1918	if (@$queue) {	2633	if (@$queue) {
…		…
1920	} else {	2635	} else {
1921	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2636	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1922	}	2637	}
1923	}	2638	}
1924	},	2639	},
		2640	on_exticmd => sub {
		2641	my ($ns, $buf) = @_;
		2642
		2643	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2644
		2645	if (ref $msg) {
		2646	my ($type, $reply, @payload) =
		2647	"ARRAY" eq ref $msg
		2648	? @$msg
		2649	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2650
		2651	if (my $cb = $EXTICMD{$type}) {
		2652	my @reply = $cb->($ns, @payload);
		2653
		2654	$ns->ext_reply ($reply, @reply)
		2655	if $reply;
		2656	}
		2657	} else {
		2658	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2659	}
		2660
		2661	cf::override;
		2662	},
1925	);	2663	);
1926		2664
1927	=item $client->async (\&cb)	2665	=item $client->async (\&cb)
1928		2666
1929	Create a new coroutine, running the specified callback. The coroutine will	2667	Create a new coroutine, running the specified callback. The coroutine will
…		…
1976		2714
1977	# here we export the classes and methods available to script code	2715	# here we export the classes and methods available to script code
1978		2716
1979	=pod	2717	=pod
1980		2718
1981	The following fucntions and emthods are available within a safe environment:	2719	The following functions and methods are available within a safe environment:
1982		2720
1983	cf::object contr pay_amount pay_player map	2721	cf::object
		2722	contr pay_amount pay_player map x y force_find force_add
		2723	insert remove
		2724
1984	cf::object::player player	2725	cf::object::player
1985	cf::player peaceful	2726	player
1986	cf::map trigger	2727
		2728	cf::player
		2729	peaceful
		2730
		2731	cf::map
		2732	trigger
1987		2733
1988	=cut	2734	=cut
1989		2735
1990	for (	2736	for (
1991	["cf::object" => qw(contr pay_amount pay_player map)],	2737	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2738	insert remove)],
1992	["cf::object::player" => qw(player)],	2739	["cf::object::player" => qw(player)],
1993	["cf::player" => qw(peaceful)],	2740	["cf::player" => qw(peaceful)],
1994	["cf::map" => qw(trigger)],	2741	["cf::map" => qw(trigger)],
1995	) {	2742	) {
1996	no strict 'refs';	2743	no strict 'refs';
…		…
2067	=back	2814	=back
2068		2815
2069	=cut	2816	=cut
2070		2817
2071	#############################################################################	2818	#############################################################################
		2819	# the server's init and main functions
2072		2820
2073	=head2 EXTENSION DATABASE SUPPORT	2821	sub load_facedata($) {
		2822	my ($path) = @_;
2074		2823
2075	Crossfire maintains a very simple database for extension use. It can	2824	warn "loading facedata from $path\n";
2076	currently store anything that can be serialised using Storable, which
2077	excludes objects.
2078		2825
2079	The parameter C<$family> should best start with the name of the extension	2826	my $facedata;
2080	using it, it should be unique.	2827	0 < aio_load $path, $facedata
		2828	or die "$path: $!";
2081		2829
2082	=over 4	2830	$facedata = Coro::Storable::thaw $facedata;
2083		2831
2084	=item $hashref = cf::db_get $family	2832	$facedata->{version} == 2
		2833	or cf::cleanup "$path: version mismatch, cannot proceed.";
2085		2834
2086	Return a hashref for use by the extension C<$family>, which can be
2087	modified. After modifications, you have to call C<cf::db_dirty> or
2088	C<cf::db_sync>.
2089
2090	=item $value = cf::db_get $family => $key
2091
2092	Returns a single value from the database
2093
2094	=item cf::db_put $family => $hashref
2095
2096	Stores the given family hashref into the database. Updates are delayed, if
2097	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2098
2099	=item cf::db_put $family => $key => $value
2100
2101	Stores the given C<$value> in the family hash. Updates are delayed, if you
2102	want the data to be synced to disk immediately, use C<cf::db_sync>.
2103
2104	=item cf::db_dirty
2105
2106	Marks the database as dirty, to be updated at a later time.
2107
2108	=item cf::db_sync
2109
2110	Immediately write the database to disk I<if it is dirty>.
2111
2112	=cut
2113
2114	our $DB;
2115
2116	{
2117	my $path = cf::localdir . "/database.pst";
2118
2119	sub db_load() {
2120	$DB = stat $path ? Storable::retrieve $path : { };
2121	}	2835	{
		2836	my $faces = $facedata->{faceinfo};
2122		2837
2123	my $pid;	2838	while (my ($face, $info) = each %$faces) {
		2839	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2840	cf::face::set_visibility $idx, $info->{visibility};
		2841	cf::face::set_magicmap $idx, $info->{magicmap};
		2842	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2843	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2124		2844
2125	sub db_save() {	2845	cf::cede_to_tick;
2126	waitpid $pid, 0 if $pid;
2127	if (0 == ($pid = fork)) {
2128	$DB->{_meta}{version} = 1;
2129	Storable::nstore $DB, "$path~";
2130	rename "$path~", $path;
2131	cf::_exit 0 if defined $pid;
2132	}
2133	}
2134
2135	my $dirty;
2136
2137	sub db_sync() {
2138	db_save if $dirty;
2139	undef $dirty;
2140	}
2141
2142	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2143	db_sync;
2144	});
2145
2146	sub db_dirty() {
2147	$dirty = 1;
2148	$idle->start;
2149	}
2150
2151	sub db_get($;$) {
2152	@_ >= 2
2153	? $DB->{$_[0]}{$_[1]}
2154	: ($DB->{$_[0]} ||= { })
2155	}
2156
2157	sub db_put($$;$) {
2158	if (@_ >= 3) {
2159	$DB->{$_[0]}{$_[1]} = $_[2];
2160	} else {
2161	$DB->{$_[0]} = $_[1];
2162	}
2163	db_dirty;
2164	}
2165
2166	cf::global->attach (
2167	prio => 10000,
2168	on_cleanup => sub {
2169	db_sync;
2170	},	2846	}
2171	);
2172	}
2173		2847
2174	#############################################################################	2848	while (my ($face, $info) = each %$faces) {
2175	# the server's main()	2849	next unless $info->{smooth};
		2850	my $idx = cf::face::find $face
		2851	or next;
		2852	if (my $smooth = cf::face::find $info->{smooth}) {
		2853	cf::face::set_smooth $idx, $smooth;
		2854	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2855	} else {
		2856	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2857	}
		2858
		2859	cf::cede_to_tick;
		2860	}
		2861	}
		2862
		2863	{
		2864	my $anims = $facedata->{animinfo};
		2865
		2866	while (my ($anim, $info) = each %$anims) {
		2867	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2868	cf::cede_to_tick;
		2869	}
		2870
		2871	cf::anim::invalidate_all; # d'oh
		2872	}
		2873
		2874	{
		2875	# TODO: for gcfclient pleasure, we should give resources
		2876	# that gcfclient doesn't grok a >10000 face index.
		2877	my $res = $facedata->{resource};
		2878	my $enc = JSON::XS->new->utf8->canonical;
		2879
		2880	my $soundconf = delete $res->{"res/sound.conf"};
		2881
		2882	while (my ($name, $info) = each %$res) {
		2883	my $meta = $enc->encode ({
		2884	name => $name,
		2885	%{ $info->{meta} || {} },
		2886	});
		2887
		2888	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2889
		2890	if ($info->{type} & 1) {
		2891	# prepend meta info
		2892
		2893	my $data = pack "(w/a*)*", $meta, $info->{data};
		2894	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2895
		2896	cf::face::set_data $idx, 0, $data, $chk;
		2897	} else {
		2898	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2899	}
		2900
		2901	cf::face::set_type $idx, $info->{type};
		2902
		2903	cf::cede_to_tick;
		2904	}
		2905
		2906	if ($soundconf) {
		2907	$soundconf = $enc->decode (delete $soundconf->{data});
		2908
		2909	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2910	my $sound = $soundconf->{compat}[$_]
		2911	or next;
		2912
		2913	my $face = cf::face::find "sound/$sound->[1]";
		2914
		2915	cf::sound::set $sound->[0] => $face;
		2916	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2917	}
		2918
		2919	#TODO
		2920	}
		2921	}
		2922
		2923	1
		2924	}
		2925
		2926	register_exticmd fx_want => sub {
		2927	my ($ns, $want) = @_;
		2928
		2929	while (my ($k, $v) = each %$want) {
		2930	$ns->fx_want ($k, $v);
		2931	}
		2932	};
		2933
		2934	sub reload_regions {
		2935	load_resource_file "$MAPDIR/regions"
		2936	or die "unable to load regions file\n";
		2937
		2938	for (cf::region::list) {
		2939	$_->{match} = qr/$_->{match}/
		2940	if exists $_->{match};
		2941	}
		2942	}
		2943
		2944	sub reload_facedata {
		2945	load_facedata "$DATADIR/facedata"
		2946	or die "unable to load facedata\n";
		2947	}
		2948
		2949	sub reload_archetypes {
		2950	load_resource_file "$DATADIR/archetypes"
		2951	or die "unable to load archetypes\n";
		2952	#d# NEED to laod twice to resolve forward references
		2953	# this really needs to be done in an extra post-pass
		2954	# (which needs to be synchronous, so solve it differently)
		2955	load_resource_file "$DATADIR/archetypes"
		2956	or die "unable to load archetypes\n";
		2957	}
		2958
		2959	sub reload_treasures {
		2960	load_resource_file "$DATADIR/treasures"
		2961	or die "unable to load treasurelists\n";
		2962	}
		2963
		2964	sub reload_resources {
		2965	warn "reloading resource files...\n";
		2966
		2967	reload_regions;
		2968	reload_facedata;
		2969	#reload_archetypes;#d#
		2970	reload_archetypes;
		2971	reload_treasures;
		2972
		2973	warn "finished reloading resource files\n";
		2974	}
		2975
		2976	sub init {
		2977	reload_resources;
		2978	}
2176		2979
2177	sub cfg_load {	2980	sub cfg_load {
2178	open my $fh, "<:utf8", cf::confdir . "/config"	2981	open my $fh, "<:utf8", "$CONFDIR/config"
2179	or return;	2982	or return;
2180		2983
2181	local $/;	2984	local $/;
2182	*CFG = YAML::Syck::Load <$fh>;	2985	*CFG = YAML::Syck::Load <$fh>;
2183		2986
…		…
2197		3000
2198	sub main {	3001	sub main {
2199	# we must not ever block the main coroutine	3002	# we must not ever block the main coroutine
2200	local $Coro::idle = sub {	3003	local $Coro::idle = sub {
2201	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3004	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3005	(async {
2202	async { Event::one_event };	3006	Event::one_event;
		3007	})->prio (Coro::PRIO_MAX);
2203	};	3008	};
2204		3009
2205	cfg_load;	3010	cfg_load;
2206	db_load;	3011	db_init;
2207	load_extensions;	3012	load_extensions;
		3013
		3014	$TICK_WATCHER->start;
2208	Event::loop;	3015	Event::loop;
2209	}	3016	}
2210		3017
2211	#############################################################################	3018	#############################################################################
2212	# initialisation	3019	# initialisation and cleanup
2213		3020
		3021	# install some emergency cleanup handlers
		3022	BEGIN {
		3023	for my $signal (qw(INT HUP TERM)) {
		3024	Event->signal (
		3025	reentrant => 0,
		3026	data => WF_AUTOCANCEL,
		3027	signal => $signal,
		3028	prio => 0,
		3029	cb => sub {
		3030	cf::cleanup "SIG$signal";
		3031	},
		3032	);
		3033	}
		3034	}
		3035
		3036	sub write_runtime {
		3037	my $runtime = "$LOCALDIR/runtime";
		3038
		3039	# first touch the runtime file to show we are still running:
		3040	# the fsync below can take a very very long time.
		3041
		3042	IO::AIO::aio_utime $runtime, undef, undef;
		3043
		3044	my $guard = cf::lock_acquire "write_runtime";
		3045
		3046	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3047	or return;
		3048
		3049	my $value = $cf::RUNTIME + 90 + 10;
		3050	# 10 is the runtime save interval, for a monotonic clock
		3051	# 60 allows for the watchdog to kill the server.
		3052
		3053	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3054	and return;
		3055
		3056	# always fsync - this file is important
		3057	aio_fsync $fh
		3058	and return;
		3059
		3060	# touch it again to show we are up-to-date
		3061	aio_utime $fh, undef, undef;
		3062
		3063	close $fh
		3064	or return;
		3065
		3066	aio_rename "$runtime~", $runtime
		3067	and return;
		3068
		3069	warn "runtime file written.\n";
		3070
		3071	1
		3072	}
		3073
		3074	sub emergency_save() {
		3075	my $freeze_guard = cf::freeze_mainloop;
		3076
		3077	warn "enter emergency perl save\n";
		3078
		3079	cf::sync_job {
		3080	# use a peculiar iteration method to avoid tripping on perl
		3081	# refcount bugs in for. also avoids problems with players
		3082	# and maps saved/destroyed asynchronously.
		3083	warn "begin emergency player save\n";
		3084	for my $login (keys %cf::PLAYER) {
		3085	my $pl = $cf::PLAYER{$login} or next;
		3086	$pl->valid or next;
		3087	$pl->save;
		3088	}
		3089	warn "end emergency player save\n";
		3090
		3091	warn "begin emergency map save\n";
		3092	for my $path (keys %cf::MAP) {
		3093	my $map = $cf::MAP{$path} or next;
		3094	$map->valid or next;
		3095	$map->save;
		3096	}
		3097	warn "end emergency map save\n";
		3098
		3099	warn "begin emergency database checkpoint\n";
		3100	BDB::db_env_txn_checkpoint $DB_ENV;
		3101	warn "end emergency database checkpoint\n";
		3102	};
		3103
		3104	warn "leave emergency perl save\n";
		3105	}
		3106
		3107	sub post_cleanup {
		3108	my ($make_core) = @_;
		3109
		3110	warn Carp::longmess "post_cleanup backtrace"
		3111	if $make_core;
		3112	}
		3113
2214	sub reload() {	3114	sub do_reload_perl() {
2215	# can/must only be called in main	3115	# can/must only be called in main
2216	if ($Coro::current != $Coro::main) {	3116	if ($Coro::current != $Coro::main) {
2217	warn "can only reload from main coroutine\n";	3117	warn "can only reload from main coroutine";
2218	return;	3118	return;
2219	}	3119	}
2220		3120
2221	warn "reloading...";	3121	warn "reloading...";
2222		3122
2223	my $guard = freeze_mainloop;	3123	warn "entering sync_job";
		3124
		3125	cf::sync_job {
		3126	cf::write_runtime; # external watchdog should not bark
2224	cf::emergency_save;	3127	cf::emergency_save;
		3128	cf::write_runtime; # external watchdog should not bark
2225		3129
2226	eval {	3130	warn "syncing database to disk";
		3131	BDB::db_env_txn_checkpoint $DB_ENV;
		3132
2227	# if anything goes wrong in here, we should simply crash as we already saved	3133	# if anything goes wrong in here, we should simply crash as we already saved
2228		3134
2229	# cancel all watchers	3135	warn "cancelling all WF_AUTOCANCEL watchers";
2230	for (Event::all_watchers) {	3136	for (Event::all_watchers) {
2231	$_->cancel if $_->data & WF_AUTOCANCEL;	3137	$_->cancel if $_->data & WF_AUTOCANCEL;
2232	}	3138	}
2233		3139
		3140	warn "flushing outstanding aio requests";
		3141	for (;;) {
		3142	BDB::flush;
		3143	IO::AIO::flush;
		3144	Coro::cede;
		3145	last unless IO::AIO::nreqs || BDB::nreqs;
		3146	warn "iterate...";
		3147	}
		3148
		3149	++$RELOAD;
		3150
2234	# cancel all extension coros	3151	warn "cancelling all extension coros";
2235	$_->cancel for values %EXT_CORO;	3152	$_->cancel for values %EXT_CORO;
2236	%EXT_CORO = ();	3153	%EXT_CORO = ();
2237		3154
2238	# unload all extensions	3155	warn "removing commands";
2239	for (@exts) {	3156	%COMMAND = ();
		3157
		3158	warn "removing ext/exti commands";
		3159	%EXTCMD = ();
		3160	%EXTICMD = ();
		3161
		3162	warn "unloading/nuking all extensions";
		3163	for my $pkg (@EXTS) {
2240	warn "unloading <$_>";	3164	warn "... unloading $pkg";
2241	unload_extension $_;	3165
		3166	if (my $cb = $pkg->can ("unload")) {
		3167	eval {
		3168	$cb->($pkg);
		3169	1
		3170	} or warn "$pkg unloaded, but with errors: $@";
2242	}	3171	}
2243		3172
		3173	warn "... nuking $pkg";
		3174	Symbol::delete_package $pkg;
		3175	}
		3176
2244	# unload all modules loaded from $LIBDIR	3177	warn "unloading all perl modules loaded from $LIBDIR";
2245	while (my ($k, $v) = each %INC) {	3178	while (my ($k, $v) = each %INC) {
2246	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3179	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2247		3180
2248	warn "removing <$k>";	3181	warn "... unloading $k";
2249	delete $INC{$k};	3182	delete $INC{$k};
2250		3183
2251	$k =~ s/\.pm$//;	3184	$k =~ s/\.pm$//;
2252	$k =~ s/\//::/g;	3185	$k =~ s/\//::/g;
2253		3186
…		…
2256	}	3189	}
2257		3190
2258	Symbol::delete_package $k;	3191	Symbol::delete_package $k;
2259	}	3192	}
2260		3193
2261	# sync database to disk
2262	cf::db_sync;
2263	IO::AIO::flush;
2264
2265	# get rid of safe::, as good as possible	3194	warn "getting rid of safe::, as good as possible";
2266	Symbol::delete_package "safe::$_"	3195	Symbol::delete_package "safe::$_"
2267	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3196	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2268		3197
2269	# remove register_script_function callbacks
2270	# TODO
2271
2272	# unload cf.pm "a bit"	3198	warn "unloading cf.pm \"a bit\"";
2273	delete $INC{"cf.pm"};	3199	delete $INC{"cf.pm"};
		3200	delete $INC{"cf/pod.pm"};
2274		3201
2275	# don't, removes xs symbols, too,	3202	# don't, removes xs symbols, too,
2276	# and global variables created in xs	3203	# and global variables created in xs
2277	#Symbol::delete_package __PACKAGE__;	3204	#Symbol::delete_package __PACKAGE__;
2278		3205
2279	# reload cf.pm	3206	warn "unload completed, starting to reload now";
		3207
2280	warn "reloading cf.pm";	3208	warn "reloading cf.pm";
2281	require cf;	3209	require cf;
2282	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3210	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2283		3211
2284	# load config and database again	3212	warn "loading config and database again";
2285	cf::cfg_load;	3213	cf::cfg_load;
2286	cf::db_load;
2287		3214
2288	# load extensions
2289	warn "load extensions";	3215	warn "loading extensions";
2290	cf::load_extensions;	3216	cf::load_extensions;
2291		3217
2292	# reattach attachments to objects	3218	warn "reattaching attachments to objects/players";
2293	warn "reattach";	3219	_global_reattach; # objects, sockets
2294	_global_reattach;	3220	warn "reattaching attachments to maps";
2295	reattach $_ for values %MAP;	3221	reattach $_ for values %MAP;
2296	};	3222	warn "reattaching attachments to players";
		3223	reattach $_ for values %PLAYER;
2297		3224
2298	if ($@) {	3225	warn "leaving sync_job";
		3226
		3227	1
		3228	} or do {
2299	warn $@;	3229	warn $@;
2300	warn "error while reloading, exiting.";	3230	warn "error while reloading, exiting.";
2301	exit 1;	3231	exit 1;
2302	}	3232	};
2303		3233
2304	warn "reloaded successfully";	3234	warn "reloaded";
2305	};	3235	};
2306		3236
2307	#############################################################################	3237	our $RELOAD_WATCHER; # used only during reload
2308		3238
2309	unless ($LINK_MAP) {	3239	sub reload_perl() {
2310	$LINK_MAP = cf::map::new;	3240	# doing reload synchronously and two reloads happen back-to-back,
		3241	# coro crashes during coro_state_free->destroy here.
2311		3242
2312	$LINK_MAP->width (41);	3243	$RELOAD_WATCHER ||= Event->timer (
2313	$LINK_MAP->height (41);	3244	reentrant => 0,
2314	$LINK_MAP->alloc;
2315	$LINK_MAP->path ("{link}");
2316	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2317	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2318
2319	# dirty hack because... archetypes are not yet loaded
2320	Event->timer (
2321	after => 10,	3245	after => 0,
		3246	data => WF_AUTOCANCEL,
2322	cb => sub {	3247	cb => sub {
2323	$_[0]->w->cancel;	3248	do_reload_perl;
2324		3249	undef $RELOAD_WATCHER;
2325	# provide some exits "home"
2326	my $exit = cf::object::new "exit";
2327
2328	$exit->slaying ($EMERGENCY_POSITION->[0]);
2329	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2330	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2331
2332	$LINK_MAP->insert ($exit->clone, 19, 19);
2333	$LINK_MAP->insert ($exit->clone, 19, 20);
2334	$LINK_MAP->insert ($exit->clone, 19, 21);
2335	$LINK_MAP->insert ($exit->clone, 20, 19);
2336	$LINK_MAP->insert ($exit->clone, 20, 21);
2337	$LINK_MAP->insert ($exit->clone, 21, 19);
2338	$LINK_MAP->insert ($exit->clone, 21, 20);
2339	$LINK_MAP->insert ($exit->clone, 21, 21);
2340
2341	$exit->destroy;
2342	});	3250	},
2343		3251	);
2344	$LINK_MAP->{deny_save} = 1;
2345	$LINK_MAP->{deny_reset} = 1;
2346
2347	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2348	}	3252	}
2349
2350	register "<global>", __PACKAGE__;
2351		3253
2352	register_command "reload" => sub {	3254	register_command "reload" => sub {
2353	my ($who, $arg) = @_;	3255	my ($who, $arg) = @_;
2354		3256
2355	if ($who->flag (FLAG_WIZ)) {	3257	if ($who->flag (FLAG_WIZ)) {
2356	$who->message ("start of reload.");
2357	reload;
2358	$who->message ("end of reload.");	3258	$who->message ("reloading server.");
		3259	async { reload_perl };
2359	}	3260	}
2360	};	3261	};
2361		3262
2362	unshift @INC, $LIBDIR;	3263	unshift @INC, $LIBDIR;
2363		3264
		3265	my $bug_warning = 0;
		3266
		3267	our @WAIT_FOR_TICK;
		3268	our @WAIT_FOR_TICK_BEGIN;
		3269
		3270	sub wait_for_tick {
		3271	return unless $TICK_WATCHER->is_active;
		3272	return if $Coro::current == $Coro::main;
		3273
		3274	my $signal = new Coro::Signal;
		3275	push @WAIT_FOR_TICK, $signal;
		3276	$signal->wait;
		3277	}
		3278
		3279	sub wait_for_tick_begin {
		3280	return unless $TICK_WATCHER->is_active;
		3281	return if $Coro::current == $Coro::main;
		3282
		3283	my $signal = new Coro::Signal;
		3284	push @WAIT_FOR_TICK_BEGIN, $signal;
		3285	$signal->wait;
		3286	}
		3287
		3288	my $min = 1e6;#d#
		3289	my $avg = 10;
2364	$TICK_WATCHER = Event->timer (	3290	$TICK_WATCHER = Event->timer (
2365	reentrant => 0,	3291	reentrant => 0,
		3292	parked => 1,
2366	prio => 0,	3293	prio => 0,
2367	at => $NEXT_TICK || $TICK,	3294	at => $NEXT_TICK || $TICK,
2368	data => WF_AUTOCANCEL,	3295	data => WF_AUTOCANCEL,
2369	cb => sub {	3296	cb => sub {
		3297	if ($Coro::current != $Coro::main) {
		3298	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3299	unless ++$bug_warning > 10;
		3300	return;
		3301	}
		3302
		3303	$NOW = $tick_start = Event::time;
		3304
2370	cf::server_tick; # one server iteration	3305	cf::server_tick; # one server iteration
		3306
		3307	0 && sync_job {#d#
		3308	for(1..10) {
		3309	my $t = Event::time;
		3310	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3311	or die;
		3312
		3313	$map->width (50);
		3314	$map->height (50);
		3315	$map->alloc;
		3316	$map->_load_objects ("/tmp/x.map", 1);
		3317	my $t = Event::time - $t;
		3318
		3319	#next unless $t < 0.0013;#d#
		3320	if ($t < $min) {
		3321	$min = $t;
		3322	}
		3323	$avg = $avg * 0.99 + $t * 0.01;
		3324	}
		3325	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3326	exit 0;
		3327	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3328	};
		3329
2371	$RUNTIME += $TICK;	3330	$RUNTIME += $TICK;
2372	$NEXT_TICK += $TICK;	3331	$NEXT_TICK += $TICK;
2373		3332
		3333	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3334	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3335	Coro::async_pool {
		3336	write_runtime
		3337	or warn "ERROR: unable to write runtime file: $!";
		3338	};
		3339	}
		3340
		3341	# my $AFTER = Event::time;
		3342	# warn $AFTER - $NOW;#d#
		3343
		3344	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3345	$sig->send;
		3346	}
		3347	while (my $sig = shift @WAIT_FOR_TICK) {
		3348	$sig->send;
		3349	}
		3350
		3351	$NOW = Event::time;
		3352
2374	# if we are delayed by four ticks or more, skip them all	3353	# if we are delayed by four ticks or more, skip them all
2375	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3354	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2376		3355
2377	$TICK_WATCHER->at ($NEXT_TICK);	3356	$TICK_WATCHER->at ($NEXT_TICK);
2378	$TICK_WATCHER->start;	3357	$TICK_WATCHER->start;
		3358
		3359	$LOAD = ($NOW - $tick_start) / $TICK;
		3360	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3361
		3362	_post_tick;
		3363
		3364
2379	},	3365	},
2380	);	3366	);
2381		3367
		3368	{
2382	IO::AIO::max_poll_time $TICK * 0.2;	3369	BDB::max_poll_time $TICK * 0.1;
2383		3370	$BDB_POLL_WATCHER = Event->io (
2384	Event->io (	3371	reentrant => 0,
2385	fd => IO::AIO::poll_fileno,	3372	fd => BDB::poll_fileno,
2386	poll => 'r',	3373	poll => 'r',
2387	prio => 5,	3374	prio => 0,
2388	data => WF_AUTOCANCEL,
2389	cb => \&IO::AIO::poll_cb,
2390	);
2391
2392	Event->timer (
2393	data => WF_AUTOCANCEL,	3375	data => WF_AUTOCANCEL,
2394	after => 0,	3376	cb => \&BDB::poll_cb,
2395	interval => 10,	3377	);
2396	cb => sub {	3378	BDB::min_parallel 8;
2397	(Coro::unblock_sub {	3379
2398	write_runtime	3380	BDB::set_sync_prepare {
2399	or warn "ERROR: unable to write runtime file: $!";	3381	my $status;
		3382	my $current = $Coro::current;
		3383	(
		3384	sub {
		3385	$status = $!;
		3386	$current->ready; undef $current;
		3387	},
		3388	sub {
		3389	Coro::schedule while defined $current;
		3390	$! = $status;
		3391	},
		3392	)
		3393	};
		3394
		3395	unless ($DB_ENV) {
		3396	$DB_ENV = BDB::db_env_create;
		3397
		3398	cf::sync_job {
		3399	eval {
		3400	BDB::db_env_open
		3401	$DB_ENV,
		3402	$BDBDIR,
		3403	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3404	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3405	0666;
		3406
		3407	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3408
		3409	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3410	$DB_ENV->set_lk_detect;
		3411	};
		3412
		3413	cf::cleanup "db_env_open(db): $@" if $@;
2400	})->();	3414	};
2401	},	3415	}
2402	);	3416	}
		3417
		3418	{
		3419	IO::AIO::min_parallel 8;
		3420
		3421	undef $Coro::AIO::WATCHER;
		3422	IO::AIO::max_poll_time $TICK * 0.1;
		3423	$AIO_POLL_WATCHER = Event->io (
		3424	reentrant => 0,
		3425	data => WF_AUTOCANCEL,
		3426	fd => IO::AIO::poll_fileno,
		3427	poll => 'r',
		3428	prio => 6,
		3429	cb => \&IO::AIO::poll_cb,
		3430	);
		3431	}
		3432
		3433	my $_log_backtrace;
		3434
		3435	sub _log_backtrace {
		3436	my ($msg, @addr) = @_;
		3437
		3438	$msg =~ s/\n//;
		3439
		3440	# limit the # of concurrent backtraces
		3441	if ($_log_backtrace < 2) {
		3442	++$_log_backtrace;
		3443	async {
		3444	my @bt = fork_call {
		3445	@addr = map { sprintf "%x", $_ } @addr;
		3446	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3447	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3448	or die "addr2line: $!";
		3449
		3450	my @funcs;
		3451	my @res = <$fh>;
		3452	chomp for @res;
		3453	while (@res) {
		3454	my ($func, $line) = splice @res, 0, 2, ();
		3455	push @funcs, "[$func] $line";
		3456	}
		3457
		3458	@funcs
		3459	};
		3460
		3461	LOG llevInfo, "[ABT] $msg\n";
		3462	LOG llevInfo, "[ABT] $_\n" for @bt;
		3463	--$_log_backtrace;
		3464	};
		3465	} else {
		3466	LOG llevInfo, "[ABT] $msg\n";
		3467	LOG llevInfo, "[ABT] [suppressed]\n";
		3468	}
		3469	}
		3470
		3471	# load additional modules
		3472	use cf::pod;
2403		3473
2404	END { cf::emergency_save }	3474	END { cf::emergency_save }
2405		3475
2406	1	3476	1
2407		3477

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