ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.164 by root, Thu Jan 11 01:24:25 2007 UTC vs.
Revision 1.387 by root, Mon Oct 15 23:49:10 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 Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		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;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
38		54
39	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
43		60
		61	our $RELOAD; # number of reloads so far
44	our @EVENT;	62	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		63
47	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	80	our $NEXT_TICK;
50	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
51		89
52	our %CFG;	90	our %CFG;
53		91
54	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	93	our $RUNTIME;
56		94
57	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		98
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
64		105
65	binmode STDOUT;	106	binmode STDOUT;
66	binmode STDERR;	107	binmode STDERR;
67		108
68	# read virtual server time, if available	109	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
73	}	114	}
74		115
75	mkdir cf::localdir;	116	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		118
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
84		122
85	#############################################################################	123	#############################################################################
86		124
87	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
88		126
…		…
95	=item $cf::RUNTIME	133	=item $cf::RUNTIME
96		134
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	136	every server tick.
99		137
100	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		141
102	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
104		146
105	=item $cf::NOW	147	=item $cf::NOW
106		148
107	The time of the last (current) server tick.	149	The time of the last (current) server tick.
108		150
109	=item $cf::TICK	151	=item $cf::TICK
110		152
111	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
112		164
113	=item %cf::CFG	165	=item %cf::CFG
114		166
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	168	from wherever your confdir points to.
117		169
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		171
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
124		181
125	=back	182	=back
126		183
127	=cut	184	=cut
128		185
129	BEGIN {	186	BEGIN {
130	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	188	my $msg = join "", @_;
132	utf8::encode $msg;
133		189
134	$msg .= "\n"	190	$msg .= "\n"
135	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		194
137	LOG llevError, $msg;	195	LOG llevError, $msg;
138	};	196	};
139	}	197	}
140		198
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		206
148	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	208	# within the Safe compartment.
150	for my $pkg (qw(	209	for my $pkg (qw(
151	cf::global cf::attachable	210	cf::global cf::attachable
…		…
159	}	218	}
160		219
161	$Event::DIED = sub {	220	$Event::DIED = sub {
162	warn "error in event callback: @_";	221	warn "error in event callback: @_";
163	};	222	};
		223
		224	#############################################################################
164		225
165	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
166		227
167	=over 4	228	=over 4
168		229
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	249	$d
189	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
190	}	251	}
191		252
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
195		254
196	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
197		256
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
206		258
207	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
208		260
209	=cut	261	=cut
210		262
211	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
213	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
214	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
215		267
216	=item cf::lock_wait $string	268	=item cf::lock_wait $string
217		269
218	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
219		271
…		…
222	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
225	returned.	277	returned.
226		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
227	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
229		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
230	=cut	289	=cut
231		290
232	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
233		293
234	sub lock_wait($) {	294	sub lock_wait($) {
235	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
236		301
237	# wait for lock, if any	302	# wait for lock, if any
238	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	305	Coro::schedule;
…		…
246		311
247	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
248	lock_wait $key;	313	lock_wait $key;
249		314
250	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
251		317
252	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
255	}	322	}
256	}	323	}
257		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
258	sub freeze_mainloop {	331	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
260		333
261	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
262	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
263	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
264	}	397	}
265		398
266	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
267		400
268	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		406
274	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
275		408
276	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
277		410
278	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
281		415
282	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
285	fast or be very important.	419	fast or be very important.
…		…
288		422
289	sub sync_job(&) {	423	sub sync_job(&) {
290	my ($job) = @_;	424	my ($job) = @_;
291		425
292	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
293	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
295		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
296	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	435	# (but this is cancel-safe)
298	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
299		437
300	my $busy = 1;	438	my $busy = 1;
301	my @res;	439	my @res;
302		440
303	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	443	@res = eval { $job->() };
305	warn $@ if $@;	444	warn $@ if $@;
306	undef $busy;	445	undef $busy;
307	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
308		447
309	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
310	Coro::cede or Event::one_event;	452	Event::one_event;
311	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
312		462
313	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
314	} else {	464	} else {
315	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
316		466
…		…
336	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
337		487
338	$coro	488	$coro
339	}	489	}
340		490
341	sub write_runtime {	491	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		492
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
345	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
346		497
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		499
351	aio_fsync $fh	500	sub fork_call(&@) {
352	and return;	501	my ($cb, @args) = @_;
353		502
354	close $fh	503	# we seemingly have to make a local copy of the whole thing,
355	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
356		506
357	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
358	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
359		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
360	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	651	}
362		652
363	=back	653	=back
364		654
365	=cut	655	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	sub unlink_save {
522	my ($self) = @_;
523
524	utf8::encode (my $save = $self->save_path);
525	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
526	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
527	}
528
529	package cf;
530		656
531	#############################################################################	657	#############################################################################
532		658
533	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
534		660
…		…
536	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
537	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
538		664
539	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
540	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
541	crossfire+).	667	Crossfire TRT).
542		668
543	=over 4	669	=over 4
544		670
545	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
546		672
…		…
660	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
661	our @CB_MAP = ();	787	our @CB_MAP = ();
662		788
663	my %attachment;	789	my %attachment;
664		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
665	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
666	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
667		799
668	use sort 'stable';	800	use sort 'stable';
669		801
…		…
703	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
704		836
705	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
706	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
707	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
708	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
709		841
710	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
711	my $pkg = shift @arg;	843	my $pkg = shift @arg;
712		844
713	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
742	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
743	}	875	}
744		876
745	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
746	} else {	878	} else {
747	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
748	}	880	}
749		881
750	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
751	}	883	}
752		884
…		…
754	if (ref $_[0]) {	886	if (ref $_[0]) {
755	_object_attach @_;	887	_object_attach @_;
756	} else {	888	} else {
757	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
758	}	890	}
		891	_recalc_want;
759	};	892	};
760		893
761	# all those should be optimised	894	# all those should be optimised
762	sub cf::attachable::detach {	895	sub cf::attachable::detach {
763	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
766	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
767	reattach ($obj);	900	reattach ($obj);
768	} else {	901	} else {
769	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
770	}	903	}
		904	_recalc_want;
771	};	905	};
772		906
773	sub cf::attachable::attached {	907	sub cf::attachable::attached {
774	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
775		909
…		…
790	";	924	";
791	die if $@;	925	die if $@;
792	}	926	}
793		927
794	our $override;	928	our $override;
795	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
796		930
797	sub override {	931	sub override {
798	$override = 1;	932	$override = 1;
799	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
800	}	934	}
801		935
802	sub do_invoke {	936	sub do_invoke {
803	my $event = shift;	937	my $event = shift;
804	my $callbacks = shift;	938	my $callbacks = shift;
805		939
806	@invoke_results = ();	940	@INVOKE_RESULTS = ();
807		941
808	local $override;	942	local $override;
809		943
810	for (@$callbacks) {	944	for (@$callbacks) {
811	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
828		962
829	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
830		964
831	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
832	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
833	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
834		968
835	=back	969	=back
836		970
837	=cut	971	=cut
838		972
839	#############################################################################	973	#############################################################################
840	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
841		1017
842	sub reattach {	1018	sub reattach {
843	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
844	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
845		1023
846	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
847		1025
848	@$registry = ();	1026	@$registry = ();
849		1027
…		…
890	sub object_freezer_save {	1068	sub object_freezer_save {
891	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
892		1070
893	sync_job {	1071	sync_job {
894	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
895	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
896	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
897		1076
898	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
899	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
900	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
901	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	1081	close $fh;
903		1082
904	if (@$objs) {	1083	if (@$objs) {
905	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
906	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
907	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::blocking_nfreeze { version => 1, objs => $objs };
908	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
909	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
910	close $fh;	1089	close $fh;
911	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
912	}	1091	}
913	} else {	1092	} else {
914	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
920	}	1099	}
921	} else {	1100	} else {
922	aio_unlink $filename;	1101	aio_unlink $filename;
923	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
924	}	1103	}
925	}	1104	};
926	}	1105	}
927		1106
928	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
929	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
930		1109
…		…
942	or return;	1121	or return;
943		1122
944	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
945	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
946	or return;	1125	or return;
947	$av = eval { (Storable::thaw $av)->{objs} };
948	}
949		1126
		1127	my $st = eval { Coro::Storable::thaw $av }
		1128	|| eval { my $guard = Coro::Storable::guard; Storable::thaw $av }; #d# compatibility, remove
		1129	$av = $st->{objs};
		1130	}
		1131
		1132	utf8::decode (my $decname = $filename);
950	warn sprintf "loading %s (%d)\n",	1133	warn sprintf "loading %s (%d,%d)\n",
951	$filename, length $data, scalar @{$av || []};#d#	1134	$decname, length $data, scalar @{$av || []};
		1135
952	return ($data, $av);	1136	($data, $av)
953	}	1137	}
		1138
		1139	=head2 COMMAND CALLBACKS
		1140
		1141	=over 4
		1142
		1143	=cut
954		1144
955	#############################################################################	1145	#############################################################################
956	# command handling &c	1146	# command handling &c
957		1147
958	=item cf::register_command $name => \&callback($ob,$args);	1148	=item cf::register_command $name => \&callback($ob,$args);
…		…
971	push @{ $COMMAND{$name} }, [$caller, $cb];	1161	push @{ $COMMAND{$name} }, [$caller, $cb];
972	}	1162	}
973		1163
974	=item cf::register_extcmd $name => \&callback($pl,$packet);	1164	=item cf::register_extcmd $name => \&callback($pl,$packet);
975		1165
976	Register a callbackf ro execution when the client sends an extcmd packet.	1166	Register a callback for execution when the client sends an (synchronous)
		1167	extcmd packet. Ext commands will be processed in the order they are
		1168	received by the server, like other user commands. The first argument is
		1169	the logged-in player. Ext commands can only be processed after a player
		1170	has logged in successfully.
977		1171
978	If the callback returns something, it is sent back as if reply was being	1172	If the callback returns something, it is sent back as if reply was being
979	called.	1173	called.
980		1174
		1175	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1176
		1177	Register a callback for execution when the client sends an (asynchronous)
		1178	exticmd packet. Exti commands are processed by the server as soon as they
		1179	are received, i.e. out of order w.r.t. other commands. The first argument
		1180	is a client socket. Exti commands can be received anytime, even before
		1181	log-in.
		1182
		1183	If the callback returns something, it is sent back as if reply was being
		1184	called.
		1185
981	=cut	1186	=cut
982		1187
983	sub register_extcmd {	1188	sub register_extcmd {
984	my ($name, $cb) = @_;	1189	my ($name, $cb) = @_;
985		1190
986	$EXTCMD{$name} = $cb;	1191	$EXTCMD{$name} = $cb;
		1192	}
		1193
		1194	sub register_exticmd {
		1195	my ($name, $cb) = @_;
		1196
		1197	$EXTICMD{$name} = $cb;
987	}	1198	}
988		1199
989	cf::player->attach (	1200	cf::player->attach (
990	on_command => sub {	1201	on_command => sub {
991	my ($pl, $name, $params) = @_;	1202	my ($pl, $name, $params) = @_;
…		…
1000	cf::override;	1211	cf::override;
1001	},	1212	},
1002	on_extcmd => sub {	1213	on_extcmd => sub {
1003	my ($pl, $buf) = @_;	1214	my ($pl, $buf) = @_;
1004		1215
1005	my $msg = eval { from_json $buf };	1216	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1006		1217
1007	if (ref $msg) {	1218	if (ref $msg) {
		1219	my ($type, $reply, @payload) =
		1220	"ARRAY" eq ref $msg
		1221	? @$msg
		1222	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1223
		1224	my @reply;
		1225
1008	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1226	if (my $cb = $EXTCMD{$type}) {
1009	if (my %reply = $cb->($pl, $msg)) {	1227	@reply = $cb->($pl, @payload);
1010	$pl->ext_reply ($msg->{msgid}, %reply);
1011	}
1012	}	1228	}
		1229
		1230	$pl->ext_reply ($reply, @reply)
		1231	if $reply;
		1232
1013	} else {	1233	} else {
1014	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1234	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1015	}	1235	}
1016		1236
1017	cf::override;	1237	cf::override;
1018	},	1238	},
1019	);	1239	);
1020		1240
1021	sub load_extension {
1022	my ($path) = @_;
1023
1024	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1025	my $base = $1;
1026	my $pkg = $1;
1027	$pkg =~ s/[^[:word:]]/_/g;
1028	$pkg = "ext::$pkg";
1029
1030	warn "... loading '$path' into '$pkg'\n";
1031
1032	open my $fh, "<:utf8", $path
1033	or die "$path: $!";
1034
1035	my $source =
1036	"package $pkg; use strict; use utf8;\n"
1037	. "#line 1 \"$path\"\n{\n"
1038	. (do { local $/; <$fh> })
1039	. "\n};\n1";
1040
1041	eval $source
1042	or die $@ ? "$path: $@\n"
1043	: "extension disabled.\n";
1044
1045	push @EXTS, $pkg;
1046	}
1047
1048	sub load_extensions {	1241	sub load_extensions {
		1242	cf::sync_job {
		1243	my %todo;
		1244
1049	for my $ext (<$LIBDIR/*.ext>) {	1245	for my $path (<$LIBDIR/*.ext>) {
1050	next unless -r $ext;	1246	next unless -r $path;
1051	eval {	1247
1052	load_extension $ext;	1248	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1249	my $base = $1;
		1250	my $pkg = $1;
		1251	$pkg =~ s/[^[:word:]]/_/g;
		1252	$pkg = "ext::$pkg";
		1253
		1254	open my $fh, "<:utf8", $path
		1255	or die "$path: $!";
		1256
		1257	my $source = do { local $/; <$fh> };
		1258
		1259	my %ext = (
		1260	path => $path,
		1261	base => $base,
		1262	pkg => $pkg,
		1263	);
		1264
		1265	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1266	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1267
		1268	$ext{source} =
		1269	"package $pkg; use strict; use utf8;\n"
		1270	. "#line 1 \"$path\"\n{\n"
		1271	. $source
		1272	. "\n};\n1";
		1273
		1274	$todo{$base} = \%ext;
		1275	}
		1276
		1277	my %done;
		1278	while (%todo) {
		1279	my $progress;
		1280
		1281	while (my ($k, $v) = each %todo) {
		1282	for (split /,\s*/, $v->{meta}{depends}) {
		1283	goto skip
		1284	unless exists $done{$_};
		1285	}
		1286
		1287	warn "... loading '$k' into '$v->{pkg}'\n";
		1288
		1289	unless (eval $v->{source}) {
		1290	my $msg = $@ ? "$v->{path}: $@\n"
		1291	: "$v->{base}: extension inactive.\n";
		1292
		1293	if (exists $v->{meta}{mandatory}) {
		1294	warn $msg;
		1295	warn "mandatory extension failed to load, exiting.\n";
		1296	exit 1;
		1297	}
		1298
		1299	warn $msg;
		1300	}
		1301
		1302	$done{$k} = delete $todo{$k};
		1303	push @EXTS, $v->{pkg};
		1304	$progress = 1;
1053	1	1305	}
1054	} or warn "$ext not loaded: $@";	1306
		1307	skip:
		1308	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1309	unless $progress;
		1310	}
1055	}	1311	};
1056	}	1312	}
1057		1313
1058	#############################################################################	1314	#############################################################################
1059	# load/save/clean perl data associated with a map
1060		1315
1061	*cf::mapsupport::on_clean = sub {	1316	=back
1062	my ($map) = @_;
1063
1064	my $path = $map->tmpname;
1065	defined $path or return;
1066
1067	unlink "$path.pst";
1068	};
1069
1070	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1071
1072	#############################################################################
1073		1317
1074	=head2 CORE EXTENSIONS	1318	=head2 CORE EXTENSIONS
1075		1319
1076	Functions and methods that extend core crossfire objects.	1320	Functions and methods that extend core crossfire objects.
1077		1321
…		…
1083		1327
1084	=head3 cf::player	1328	=head3 cf::player
1085		1329
1086	=over 4	1330	=over 4
1087		1331
		1332	=item cf::player::num_playing
		1333
		1334	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1335
		1336	=cut
		1337
		1338	sub num_playing {
		1339	scalar grep
		1340	$_->ob->map
		1341	&& !$_->hidden
		1342	&& !$_->ob->flag (cf::FLAG_WIZ),
		1343	cf::player::list
		1344	}
		1345
1088	=item cf::player::find $login	1346	=item cf::player::find $login
1089		1347
1090	Returns the given player object, loading it if necessary (might block).	1348	Returns the given player object, loading it if necessary (might block).
1091		1349
1092	=cut	1350	=cut
1093		1351
1094	sub playerdir($) {	1352	sub playerdir($) {
1095	cf::localdir	1353	"$PLAYERDIR/"
1096	. "/"
1097	. cf::playerdir
1098	. "/"
1099	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1354	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1100	}	1355	}
1101		1356
1102	sub path($) {	1357	sub path($) {
1103	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1358	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1104		1359
1105	(playerdir $login) . "/$login.pl"	1360	(playerdir $login) . "/playerdata"
1106	}	1361	}
1107		1362
1108	sub find_active($) {	1363	sub find_active($) {
1109	$cf::PLAYER{$_[0]}	1364	$cf::PLAYER{$_[0]}
1110	and $cf::PLAYER{$_[0]}->active	1365	and $cf::PLAYER{$_[0]}->active
…		…
1113		1368
1114	sub exists($) {	1369	sub exists($) {
1115	my ($login) = @_;	1370	my ($login) = @_;
1116		1371
1117	$cf::PLAYER{$login}	1372	$cf::PLAYER{$login}
1118	or cf::sync_job { !aio_stat $login }	1373	or cf::sync_job { !aio_stat path $login }
1119	}	1374	}
1120		1375
1121	sub find($) {	1376	sub find($) {
1122	return $cf::PLAYER{$_[0]} || do {	1377	return $cf::PLAYER{$_[0]} || do {
1123	my $login = $_[0];	1378	my $login = $_[0];
1124		1379
1125	my $guard = cf::lock_acquire "user_find:$login";	1380	my $guard = cf::lock_acquire "user_find:$login";
1126		1381
1127	$cf::PLAYER{$_[0]} || do {	1382	$cf::PLAYER{$_[0]} || do {
1128	my $pl = load_pl path $login	1383	# rename old playerfiles to new ones
		1384	#TODO: remove when no longer required
		1385	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1386	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1387	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1388	aio_unlink +(playerdir $login) . "/$login.pl";
		1389
		1390	my $f = new_from_file cf::object::thawer path $login
1129	or return;	1391	or return;
		1392
		1393	my $pl = cf::player::load_pl $f
		1394	or return;
		1395	local $cf::PLAYER_LOADING{$login} = $pl;
		1396	$f->resolve_delayed_derefs;
1130	$cf::PLAYER{$login} = $pl	1397	$cf::PLAYER{$login} = $pl
1131	}	1398	}
1132	}	1399	}
1133	}	1400	}
1134		1401
…		…
1144		1411
1145	aio_mkdir playerdir $pl, 0770;	1412	aio_mkdir playerdir $pl, 0770;
1146	$pl->{last_save} = $cf::RUNTIME;	1413	$pl->{last_save} = $cf::RUNTIME;
1147		1414
1148	$pl->save_pl ($path);	1415	$pl->save_pl ($path);
1149	Coro::cede;	1416	cf::cede_to_tick;
1150	}	1417	}
1151		1418
1152	sub new($) {	1419	sub new($) {
1153	my ($login) = @_;	1420	my ($login) = @_;
1154		1421
…		…
1160	$cf::PLAYER{$login} = $self;	1427	$cf::PLAYER{$login} = $self;
1161		1428
1162	$self	1429	$self
1163	}	1430	}
1164		1431
		1432	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1433
		1434	=cut
		1435
		1436	sub send_msg {
		1437	my $ns = shift->ns
		1438	or return;
		1439	$ns->send_msg (@_);
		1440	}
		1441
1165	=item $pl->quit_character	1442	=item $pl->quit_character
1166		1443
1167	Nukes the player without looking back. If logged in, the connection will	1444	Nukes the player without looking back. If logged in, the connection will
1168	be destroyed. May block for a long time.	1445	be destroyed. May block for a long time.
1169		1446
1170	=cut	1447	=cut
1171		1448
1172	sub quit_character {	1449	sub quit_character {
1173	my ($pl) = @_;	1450	my ($pl) = @_;
		1451
		1452	my $name = $pl->ob->name;
1174		1453
1175	$pl->{deny_save} = 1;	1454	$pl->{deny_save} = 1;
1176	$pl->password ("*"); # this should lock out the player until we nuked the dir	1455	$pl->password ("*"); # this should lock out the player until we nuked the dir
1177		1456
1178	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1457	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1183	my $path = playerdir $pl;	1462	my $path = playerdir $pl;
1184	my $temp = "$path~$cf::RUNTIME~deleting~";	1463	my $temp = "$path~$cf::RUNTIME~deleting~";
1185	aio_rename $path, $temp;	1464	aio_rename $path, $temp;
1186	delete $cf::PLAYER{$pl->ob->name};	1465	delete $cf::PLAYER{$pl->ob->name};
1187	$pl->destroy;	1466	$pl->destroy;
		1467
		1468	my $prefix = qr<^~\Q$name\E/>;
		1469
		1470	# nuke player maps
		1471	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1472
1188	IO::AIO::aio_rmtree $temp;	1473	IO::AIO::aio_rmtree $temp;
		1474	}
		1475
		1476	=item $pl->kick
		1477
		1478	Kicks a player out of the game. This destroys the connection.
		1479
		1480	=cut
		1481
		1482	sub kick {
		1483	my ($pl, $kicker) = @_;
		1484
		1485	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1486	$pl->killer ("kicked");
		1487	$pl->ns->destroy;
1189	}	1488	}
1190		1489
1191	=item cf::player::list_logins	1490	=item cf::player::list_logins
1192		1491
1193	Returns am arrayref of all valid playernames in the system, can take a	1492	Returns am arrayref of all valid playernames in the system, can take a
1194	while and may block, so not sync_job-capable, ever.	1493	while and may block, so not sync_job-capable, ever.
1195		1494
1196	=cut	1495	=cut
1197		1496
1198	sub list_logins {	1497	sub list_logins {
1199	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1498	my $dirs = aio_readdir $PLAYERDIR
1200	or return [];	1499	or return [];
1201		1500
1202	my @logins;	1501	my @logins;
1203		1502
1204	for my $login (@$dirs) {	1503	for my $login (@$dirs) {
		1504	my $path = path $login;
		1505
		1506	# a .pst is a dead give-away for a valid player
		1507	unless (-e "$path.pst") {
1205	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1508	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1206	aio_read $fh, 0, 512, my $buf, 0 or next;	1509	aio_read $fh, 0, 512, my $buf, 0 or next;
1207	$buf !~ /^password -------------$/m or next; # official not-valid tag	1510	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1511	}
1208		1512
1209	utf8::decode $login;	1513	utf8::decode $login;
1210	push @logins, $login;	1514	push @logins, $login;
1211	}	1515	}
1212		1516
1213	\@logins	1517	\@logins
1214	}	1518	}
1215		1519
1216	=item $player->maps	1520	=item $player->maps
1217		1521
1218	Returns an arrayref of cf::path's of all maps that are private for this	1522	Returns an arrayref of map paths that are private for this
1219	player. May block.	1523	player. May block.
1220		1524
1221	=cut	1525	=cut
1222		1526
1223	sub maps($) {	1527	sub maps($) {
1224	my ($pl) = @_;	1528	my ($pl) = @_;
		1529
		1530	$pl = ref $pl ? $pl->ob->name : $pl;
1225		1531
1226	my $files = aio_readdir playerdir $pl	1532	my $files = aio_readdir playerdir $pl
1227	or return;	1533	or return;
1228		1534
1229	my @paths;	1535	my @paths;
…		…
1231	for (@$files) {	1537	for (@$files) {
1232	utf8::decode $_;	1538	utf8::decode $_;
1233	next if /\.(?:pl|pst)$/;	1539	next if /\.(?:pl|pst)$/;
1234	next unless /^$PATH_SEP/o;	1540	next unless /^$PATH_SEP/o;
1235		1541
1236	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1542	push @paths, cf::map::normalise "~$pl/$_";
1237	}	1543	}
1238		1544
1239	\@paths	1545	\@paths
1240	}	1546	}
1241		1547
		1548	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1549
		1550	Expand crossfire pod fragments into protocol xml.
		1551
		1552	=cut
		1553
		1554	sub expand_cfpod {
		1555	((my $self), (local $_)) = @_;
		1556
		1557	# escape & and <
		1558	s/&/&amp;/g;
		1559	s/(?<![BIUGHT])</&lt;/g;
		1560
		1561	# this is buggy, it needs to properly take care of nested <'s
		1562
		1563	1 while
		1564	# replace B<>, I<>, U<> etc.
		1565	s/B<([^\>]*)>/<b>$1<\/b>/
		1566	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1567	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1568	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1569	# replace G<male|female> tags
		1570	|| s{G<([^>|]*)\|([^>]*)>}{
		1571	$self->gender ? $2 : $1
		1572	}ge
		1573	# replace H<hint text>
		1574	|| s{H<([^\>]*)>}
		1575	{
		1576	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1577	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1578	"")
		1579	[$self->{hintmode}]
		1580	}ge;
		1581
		1582	# create single paragraphs (very hackish)
		1583	s/(?<=\S)\n(?=\w)/ /g;
		1584
		1585	# compress some whitespace
		1586	s/\s+\n/\n/g; # ws line-ends
		1587	s/\n\n+/\n/g; # double lines
		1588	s/^\n+//; # beginning lines
		1589	s/\n+$//; # ending lines
		1590
		1591	$_
		1592	}
		1593
		1594	sub hintmode {
		1595	$_[0]{hintmode} = $_[1] if @_ > 1;
		1596	$_[0]{hintmode}
		1597	}
		1598
1242	=item $player->ext_reply ($msgid, $msgtype, %msg)	1599	=item $player->ext_reply ($msgid, @msg)
1243		1600
1244	Sends an ext reply to the player.	1601	Sends an ext reply to the player.
1245		1602
1246	=cut	1603	=cut
1247		1604
1248	sub ext_reply($$$%) {	1605	sub ext_reply($$@) {
1249	my ($self, $id, %msg) = @_;	1606	my ($self, $id, @msg) = @_;
1250		1607
1251	$msg{msgid} = $id;	1608	$self->ns->ext_reply ($id, @msg)
1252
1253	$self->send ("ext " . cf::to_json \%msg);
1254	}	1609	}
1255		1610
1256	package cf;	1611	=item $player->ext_msg ($type, @msg)
		1612
		1613	Sends an ext event to the client.
		1614
		1615	=cut
		1616
		1617	sub ext_msg($$@) {
		1618	my ($self, $type, @msg) = @_;
		1619
		1620	$self->ns->ext_msg ($type, @msg);
		1621	}
		1622
		1623	=head3 cf::region
		1624
		1625	=over 4
		1626
		1627	=cut
		1628
		1629	package cf::region;
		1630
		1631	=item cf::region::find_by_path $path
		1632
		1633	Tries to decuce the likely region for a map knowing only its path.
		1634
		1635	=cut
		1636
		1637	sub find_by_path($) {
		1638	my ($path) = @_;
		1639
		1640	my ($match, $specificity);
		1641
		1642	for my $region (list) {
		1643	if ($region->{match} && $path =~ $region->{match}) {
		1644	($match, $specificity) = ($region, $region->specificity)
		1645	if $region->specificity > $specificity;
		1646	}
		1647	}
		1648
		1649	$match
		1650	}
1257		1651
1258	=back	1652	=back
1259
1260		1653
1261	=head3 cf::map	1654	=head3 cf::map
1262		1655
1263	=over 4	1656	=over 4
1264		1657
…		…
1267	package cf::map;	1660	package cf::map;
1268		1661
1269	use Fcntl;	1662	use Fcntl;
1270	use Coro::AIO;	1663	use Coro::AIO;
1271		1664
		1665	use overload
		1666	'""' => \&as_string,
		1667	fallback => 1;
		1668
1272	our $MAX_RESET = 3600;	1669	our $MAX_RESET = 3600;
1273	our $DEFAULT_RESET = 3000;	1670	our $DEFAULT_RESET = 3000;
1274		1671
1275	sub generate_random_map {	1672	sub generate_random_map {
1276	my ($path, $rmp) = @_;	1673	my ($self, $rmp) = @_;
1277
1278	# mit "rum" bekleckern, nicht	1674	# mit "rum" bekleckern, nicht
1279	cf::map::_create_random_map (	1675	$self->_create_random_map (
1280	$path,
1281	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1676	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1282	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1677	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1283	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1678	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1284	$rmp->{exit_on_final_map},	1679	$rmp->{exit_on_final_map},
1285	$rmp->{xsize}, $rmp->{ysize},	1680	$rmp->{xsize}, $rmp->{ysize},
…		…
1290	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1685	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1291	(cf::region::find $rmp->{region}), $rmp->{custom}	1686	(cf::region::find $rmp->{region}), $rmp->{custom}
1292	)	1687	)
1293	}	1688	}
1294		1689
		1690	=item cf::map->register ($regex, $prio)
		1691
		1692	Register a handler for the map path matching the given regex at the
		1693	givne priority (higher is better, built-in handlers have priority 0, the
		1694	default).
		1695
		1696	=cut
		1697
		1698	sub register {
		1699	my (undef, $regex, $prio) = @_;
		1700	my $pkg = caller;
		1701
		1702	no strict;
		1703	push @{"$pkg\::ISA"}, __PACKAGE__;
		1704
		1705	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1706	}
		1707
		1708	# also paths starting with '/'
		1709	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1710
		1711	sub thawer_merge {
		1712	my ($self, $merge) = @_;
		1713
		1714	# we have to keep some variables in memory intact
		1715	local $self->{path};
		1716	local $self->{load_path};
		1717
		1718	$self->SUPER::thawer_merge ($merge);
		1719	}
		1720
		1721	sub normalise {
		1722	my ($path, $base) = @_;
		1723
		1724	$path = "$path"; # make sure its a string
		1725
		1726	$path =~ s/\.map$//;
		1727
		1728	# map plan:
		1729	#
		1730	# /! non-realised random map exit (special hack!)
		1731	# {... are special paths that are not being touched
		1732	# ?xxx/... are special absolute paths
		1733	# ?random/... random maps
		1734	# /... normal maps
		1735	# ~user/... per-player map of a specific user
		1736
		1737	$path =~ s/$PATH_SEP/\//go;
		1738
		1739	# treat it as relative path if it starts with
		1740	# something that looks reasonable
		1741	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1742	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1743
		1744	$base =~ s{[^/]+/?$}{};
		1745	$path = "$base/$path";
		1746	}
		1747
		1748	for ($path) {
		1749	redo if s{//}{/};
		1750	redo if s{/\.?/}{/};
		1751	redo if s{/[^/]+/\.\./}{/};
		1752	}
		1753
		1754	$path
		1755	}
		1756
		1757	sub new_from_path {
		1758	my (undef, $path, $base) = @_;
		1759
		1760	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1761
		1762	$path = normalise $path, $base;
		1763
		1764	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1765	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1766	my $self = bless cf::map::new, $pkg;
		1767	$self->{path} = $path; $self->path ($path);
		1768	$self->init; # pass $1 etc.
		1769	return $self;
		1770	}
		1771	}
		1772
		1773	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1774	()
		1775	}
		1776
		1777	sub init {
		1778	my ($self) = @_;
		1779
		1780	$self
		1781	}
		1782
		1783	sub as_string {
		1784	my ($self) = @_;
		1785
		1786	"$self->{path}"
		1787	}
		1788
		1789	# the displayed name, this is a one way mapping
		1790	sub visible_name {
		1791	&as_string
		1792	}
		1793
		1794	# the original (read-only) location
		1795	sub load_path {
		1796	my ($self) = @_;
		1797
		1798	"$MAPDIR/$self->{path}.map"
		1799	}
		1800
		1801	# the temporary/swap location
		1802	sub save_path {
		1803	my ($self) = @_;
		1804
		1805	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1806	"$TMPDIR/$path.map"
		1807	}
		1808
		1809	# the unique path, undef == no special unique path
		1810	sub uniq_path {
		1811	my ($self) = @_;
		1812
		1813	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1814	"$UNIQUEDIR/$path"
		1815	}
		1816
1295	# and all this just because we cannot iterate over	1817	# and all this just because we cannot iterate over
1296	# all maps in C++...	1818	# all maps in C++...
1297	sub change_all_map_light {	1819	sub change_all_map_light {
1298	my ($change) = @_;	1820	my ($change) = @_;
1299		1821
1300	$_->change_map_light ($change)	1822	$_->change_map_light ($change)
1301	for grep $_->outdoor, values %cf::MAP;	1823	for grep $_->outdoor, values %cf::MAP;
1302	}	1824	}
1303		1825
		1826	sub decay_objects {
		1827	my ($self) = @_;
		1828
		1829	return if $self->{deny_reset};
		1830
		1831	$self->do_decay_objects;
		1832	}
		1833
		1834	sub unlink_save {
		1835	my ($self) = @_;
		1836
		1837	utf8::encode (my $save = $self->save_path);
		1838	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1839	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1840	}
		1841
1304	sub load_map_header($) {	1842	sub load_header_from($) {
1305	my ($path) = @_;	1843	my ($self, $path) = @_;
1306		1844
1307	utf8::encode $path;	1845	utf8::encode $path;
1308	aio_open $path, O_RDONLY, 0	1846	my $f = new_from_file cf::object::thawer $path
1309	or return;	1847	or return;
1310		1848
1311	my $map = cf::map::new	1849	$self->_load_header ($f)
1312	or return;	1850	or return;
1313		1851
1314	# for better error messages only, will be overwritten later	1852	local $MAP_LOADING{$self->{path}} = $self;
1315	$map->path ($path);	1853	$f->resolve_delayed_derefs;
1316		1854
1317	$map->load_header ($path)	1855	$self->{load_path} = $path;
		1856
		1857	1
		1858	}
		1859
		1860	sub load_header_orig {
		1861	my ($self) = @_;
		1862
		1863	$self->load_header_from ($self->load_path)
		1864	}
		1865
		1866	sub load_header_temp {
		1867	my ($self) = @_;
		1868
		1869	$self->load_header_from ($self->save_path)
		1870	}
		1871
		1872	sub prepare_temp {
		1873	my ($self) = @_;
		1874
		1875	$self->last_access ((delete $self->{last_access})
		1876	|| $cf::RUNTIME); #d#
		1877	# safety
		1878	$self->{instantiate_time} = $cf::RUNTIME
		1879	if $self->{instantiate_time} > $cf::RUNTIME;
		1880	}
		1881
		1882	sub prepare_orig {
		1883	my ($self) = @_;
		1884
		1885	$self->{load_original} = 1;
		1886	$self->{instantiate_time} = $cf::RUNTIME;
		1887	$self->last_access ($cf::RUNTIME);
		1888	$self->instantiate;
		1889	}
		1890
		1891	sub load_header {
		1892	my ($self) = @_;
		1893
		1894	if ($self->load_header_temp) {
		1895	$self->prepare_temp;
		1896	} else {
		1897	$self->load_header_orig
1318	or return;	1898	or return;
		1899	$self->prepare_orig;
		1900	}
1319		1901
1320	$map->{load_path} = $path;	1902	$self->{deny_reset} = 1
		1903	if $self->no_reset;
1321		1904
1322	$map	1905	$self->default_region (cf::region::find_by_path $self->{path})
		1906	unless $self->default_region;
		1907
		1908	1
1323	}	1909	}
1324		1910
1325	sub find;	1911	sub find;
1326	sub find {	1912	sub find {
1327	my ($path, $origin) = @_;	1913	my ($path, $origin) = @_;
1328		1914
1329	#warn "find<$path,$origin>\n";#d#
1330
1331	$path = new cf::path $path, $origin && $origin->path;	1915	$path = normalise $path, $origin && $origin->path;
1332	my $key = $path->as_string;
1333		1916
		1917	cf::lock_wait "map_data:$path";#d#remove
1334	cf::lock_wait "map_find:$key";	1918	cf::lock_wait "map_find:$path";
1335		1919
1336	$cf::MAP{$key} || do {	1920	$cf::MAP{$path} || do {
1337	my $guard = cf::lock_acquire "map_find:$key";	1921	my $guard1 = cf::lock_acquire "map_find:$path";
		1922	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1338		1923
1339	# do it the slow way	1924	my $map = new_from_path cf::map $path
1340	my $map = $path->load_temp;
1341
1342	Coro::cede;
1343
1344	if ($map) {
1345	$map->last_access ((delete $map->{last_access})
1346	|| $cf::RUNTIME); #d#
1347	# safety
1348	$map->{instantiate_time} = $cf::RUNTIME
1349	if $map->{instantiate_time} > $cf::RUNTIME;
1350	} else {
1351	$map = $path->load_orig
1352	or return;	1925	or return;
1353		1926
1354	$map->{load_original} = 1;
1355	$map->{instantiate_time} = $cf::RUNTIME;
1356	$map->last_access ($cf::RUNTIME);
1357	$map->instantiate;
1358
1359	# per-player maps become, after loading, normal maps
1360	$map->per_player (0) if $path->{user_rel};
1361	}
1362
1363	$map->path ($key);
1364	$map->{path} = $path;
1365	$map->{last_save} = $cf::RUNTIME;	1927	$map->{last_save} = $cf::RUNTIME;
1366		1928
1367	Coro::cede;	1929	$map->load_header
		1930	or return;
1368		1931
1369	if ($map->should_reset) {	1932	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1933	# doing this can freeze the server in a sync job, obviously
		1934	#$cf::WAIT_FOR_TICK->wait;
		1935	undef $guard1;
		1936	undef $guard2;
1370	$map->reset;	1937	$map->reset;
1371	undef $guard;
1372	$map = find $path	1938	return find $path;
1373	or return;
1374	}	1939	}
1375		1940
1376	$cf::MAP{$key} = $map	1941	$cf::MAP{$path} = $map
1377	}	1942	}
1378	}	1943	}
		1944
		1945	sub pre_load { }
		1946	sub post_load { }
1379		1947
1380	sub load {	1948	sub load {
1381	my ($self) = @_;	1949	my ($self) = @_;
1382		1950
		1951	local $self->{deny_reset} = 1; # loading can take a long time
		1952
1383	my $path = $self->{path};	1953	my $path = $self->{path};
		1954
		1955	{
1384	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1956	my $guard = cf::lock_acquire "map_data:$path";
1385		1957
		1958	return unless $self->valid;
1386	return if $self->in_memory != cf::MAP_SWAPPED;	1959	return unless $self->in_memory == cf::MAP_SWAPPED;
1387		1960
1388	$self->in_memory (cf::MAP_LOADING);	1961	$self->in_memory (cf::MAP_LOADING);
1389		1962
1390	$self->alloc;	1963	$self->alloc;
1391	$self->load_objects ($self->{load_path}, 1)	1964
		1965	$self->pre_load;
		1966	cf::cede_to_tick;
		1967
		1968	my $f = new_from_file cf::object::thawer $self->{load_path};
		1969	$f->skip_block;
		1970	$self->_load_objects ($f)
1392	or return;	1971	or return;
1393		1972
1394	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1973	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1395	if delete $self->{load_original};	1974	if delete $self->{load_original};
1396		1975
1397	if (my $uniq = $path->uniq_path) {	1976	if (my $uniq = $self->uniq_path) {
1398	utf8::encode $uniq;	1977	utf8::encode $uniq;
1399	if (aio_open $uniq, O_RDONLY, 0) {	1978	unless (aio_stat $uniq) {
		1979	if (my $f = new_from_file cf::object::thawer $uniq) {
1400	$self->clear_unique_items;	1980	$self->clear_unique_items;
1401	$self->load_objects ($uniq, 0);	1981	$self->_load_objects ($f);
		1982	$f->resolve_delayed_derefs;
		1983	}
1402	}	1984	}
1403	}	1985	}
1404		1986
1405	Coro::cede;	1987	$f->resolve_delayed_derefs;
1406		1988
		1989	cf::cede_to_tick;
1407	# now do the right thing for maps	1990	# now do the right thing for maps
1408	$self->link_multipart_objects;	1991	$self->link_multipart_objects;
1409
1410	if ($self->{path}->is_style_map) {
1411	$self->{deny_save} = 1;
1412	$self->{deny_reset} = 1;
1413	} else {
1414	$self->decay_objects;
1415	$self->fix_auto_apply;
1416	$self->update_buttons;
1417	$self->set_darkness_map;
1418	$self->difficulty ($self->estimate_difficulty)	1992	$self->difficulty ($self->estimate_difficulty)
1419	unless $self->difficulty;	1993	unless $self->difficulty;
		1994	cf::cede_to_tick;
		1995
		1996	unless ($self->{deny_activate}) {
		1997	$self->decay_objects;
		1998	$self->fix_auto_apply;
		1999	$self->update_buttons;
		2000	cf::cede_to_tick;
		2001	$self->set_darkness_map;
		2002	cf::cede_to_tick;
1420	$self->activate;	2003	$self->activate;
1421	}	2004	}
1422		2005
1423	Coro::cede;	2006	$self->{last_save} = $cf::RUNTIME;
		2007	$self->last_access ($cf::RUNTIME);
1424		2008
1425	$self->in_memory (cf::MAP_IN_MEMORY);	2009	$self->in_memory (cf::MAP_IN_MEMORY);
		2010	}
		2011
		2012	$self->post_load;
		2013	}
		2014
		2015	sub customise_for {
		2016	my ($self, $ob) = @_;
		2017
		2018	return find "~" . $ob->name . "/" . $self->{path}
		2019	if $self->per_player;
		2020
		2021	# return find "?party/" . $ob->name . "/" . $self->{path}
		2022	# if $self->per_party;
		2023
		2024	$self
1426	}	2025	}
1427		2026
1428	# find and load all maps in the 3x3 area around a map	2027	# find and load all maps in the 3x3 area around a map
1429	sub load_diag {	2028	sub load_neighbours {
1430	my ($map) = @_;	2029	my ($map) = @_;
1431		2030
1432	my @diag; # diagonal neighbours	2031	my @neigh; # diagonal neighbours
1433		2032
1434	for (0 .. 3) {	2033	for (0 .. 3) {
1435	my $neigh = $map->tile_path ($_)	2034	my $neigh = $map->tile_path ($_)
1436	or next;	2035	or next;
1437	$neigh = find $neigh, $map	2036	$neigh = find $neigh, $map
1438	or next;	2037	or next;
1439	$neigh->load;	2038	$neigh->load;
1440		2039
		2040	push @neigh,
1441	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2041	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1442	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2042	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1443	}	2043	}
1444		2044
1445	for (@diag) {	2045	for (grep defined $_->[0], @neigh) {
		2046	my ($path, $origin) = @$_;
1446	my $neigh = find @$_	2047	my $neigh = find $path, $origin
1447	or next;	2048	or next;
1448	$neigh->load;	2049	$neigh->load;
1449	}	2050	}
1450	}	2051	}
1451		2052
…		…
1456	}	2057	}
1457		2058
1458	sub do_load_sync {	2059	sub do_load_sync {
1459	my ($map) = @_;	2060	my ($map) = @_;
1460		2061
		2062	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2063	if $Coro::current == $Coro::main;
		2064
1461	cf::sync_job { $map->load };	2065	cf::sync_job { $map->load };
1462	}	2066	}
1463		2067
1464	our %MAP_PREFETCH;	2068	our %MAP_PREFETCH;
		2069	our $MAP_PREFETCHER = undef;
		2070
		2071	sub find_async {
		2072	my ($path, $origin, $load) = @_;
		2073
		2074	$path = normalise $path, $origin && $origin->{path};
		2075
		2076	if (my $map = $cf::MAP{$path}) {
		2077	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2078	}
		2079
		2080	$MAP_PREFETCH{$path} |= $load;
		2081
1465	our $MAP_PREFETCHER = Coro::async {	2082	$MAP_PREFETCHER ||= cf::async {
1466	while () {	2083	$Coro::current->{desc} = "map prefetcher";
		2084
1467	while (%MAP_PREFETCH) {	2085	while (%MAP_PREFETCH) {
1468	my $key = each %MAP_PREFETCH	2086	while (my ($k, $v) = each %MAP_PREFETCH) {
1469	or next;	2087	if (my $map = find $k) {
		2088	$map->load if $v;
		2089	}
		2090
1470	my $path = delete $MAP_PREFETCH{$key};	2091	delete $MAP_PREFETCH{$k};
1471
1472	my $map = find $path
1473	or next;
1474	$map->load;
1475	}	2092	}
1476	Coro::schedule;	2093	}
		2094	undef $MAP_PREFETCHER;
1477	}	2095	};
1478	};
1479
1480	sub find_async {
1481	my ($path, $origin) = @_;
1482
1483	$path = new cf::path $path, $origin && $origin->path;
1484	my $key = $path->as_string;
1485
1486	if (my $map = $cf::MAP{$key}) {
1487	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1488	}
1489
1490	$MAP_PREFETCH{$key} = $path;
1491	$MAP_PREFETCHER->ready;	2096	$MAP_PREFETCHER->prio (6);
1492		2097
1493	()	2098	()
1494	}	2099	}
1495		2100
1496	sub save {	2101	sub save {
1497	my ($self) = @_;	2102	my ($self) = @_;
1498		2103
1499	my $lock = cf::lock_acquire "map_data:" . $self->path;	2104	my $lock = cf::lock_acquire "map_data:$self->{path}";
1500		2105
1501	$self->{last_save} = $cf::RUNTIME;	2106	$self->{last_save} = $cf::RUNTIME;
1502		2107
1503	return unless $self->dirty;	2108	return unless $self->dirty;
1504		2109
1505	my $save = $self->{path}->save_path; utf8::encode $save;	2110	my $save = $self->save_path; utf8::encode $save;
1506	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2111	my $uniq = $self->uniq_path; utf8::encode $uniq;
1507		2112
1508	$self->{load_path} = $save;	2113	$self->{load_path} = $save;
1509		2114
1510	return if $self->{deny_save};	2115	return if $self->{deny_save};
1511		2116
1512	local $self->{last_access} = $self->last_access;#d#	2117	local $self->{last_access} = $self->last_access;#d#
1513		2118
1514	cf::async {	2119	cf::async {
		2120	$Coro::current->{desc} = "map player save";
1515	$_->contr->save for $self->players;	2121	$_->contr->save for $self->players;
1516	};	2122	};
1517		2123
1518	if ($uniq) {	2124	if ($uniq) {
1519	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2125	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1520	$self->save_objects ($uniq, cf::IO_UNIQUES);	2126	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1521	} else {	2127	} else {
1522	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2128	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1523	}	2129	}
1524	}	2130	}
1525		2131
1526	sub swap_out {	2132	sub swap_out {
1527	my ($self) = @_;	2133	my ($self) = @_;
1528		2134
1529	# save first because save cedes	2135	# save first because save cedes
1530	$self->save;	2136	$self->save;
1531		2137
1532	my $lock = cf::lock_acquire "map_data:" . $self->path;	2138	my $lock = cf::lock_acquire "map_data:$self->{path}";
1533		2139
1534	return if $self->players;	2140	return if $self->players;
1535	return if $self->in_memory != cf::MAP_IN_MEMORY;	2141	return if $self->in_memory != cf::MAP_IN_MEMORY;
1536	return if $self->{deny_save};	2142	return if $self->{deny_save};
1537		2143
		2144	$self->in_memory (cf::MAP_SWAPPED);
		2145
		2146	$self->deactivate;
		2147	$_->clear_links_to ($self) for values %cf::MAP;
1538	$self->clear;	2148	$self->clear;
1539	$self->in_memory (cf::MAP_SWAPPED);
1540	}	2149	}
1541		2150
1542	sub reset_at {	2151	sub reset_at {
1543	my ($self) = @_;	2152	my ($self) = @_;
1544		2153
1545	# TODO: safety, remove and allow resettable per-player maps	2154	# TODO: safety, remove and allow resettable per-player maps
1546	return 1e99 if $self->{path}{user_rel};
1547	return 1e99 if $self->{deny_reset};	2155	return 1e99 if $self->{deny_reset};
1548		2156
1549	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2157	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1550	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2158	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1551		2159
…		…
1556	my ($self) = @_;	2164	my ($self) = @_;
1557		2165
1558	$self->reset_at <= $cf::RUNTIME	2166	$self->reset_at <= $cf::RUNTIME
1559	}	2167	}
1560		2168
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->{path}->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2169	sub reset {
1575	my ($self) = @_;	2170	my ($self) = @_;
1576		2171
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2172	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2173
1579	return if $self->players;	2174	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2175
1582	warn "resetting map ", $self->path;#d#	2176	warn "resetting map ", $self->path;
		2177
		2178	$self->in_memory (cf::MAP_SWAPPED);
		2179
		2180	# need to save uniques path
		2181	unless ($self->{deny_save}) {
		2182	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2183
		2184	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2185	if $uniq;
		2186	}
1583		2187
1584	delete $cf::MAP{$self->path};	2188	delete $cf::MAP{$self->path};
1585		2189
		2190	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2191	$_->clear_links_to ($self) for values %cf::MAP;
		2192	$self->clear;
1587		2193
1588	$self->{path}->unlink_save;	2194	$self->unlink_save;
1589	$self->destroy;	2195	$self->destroy;
1590	}	2196	}
1591		2197
1592	my $nuke_counter = "aaaa";	2198	my $nuke_counter = "aaaa";
1593		2199
1594	sub nuke {	2200	sub nuke {
1595	my ($self) = @_;	2201	my ($self) = @_;
1596		2202
		2203	{
		2204	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2205
		2206	delete $cf::MAP{$self->path};
		2207
		2208	$self->unlink_save;
		2209
		2210	bless $self, "cf::map";
		2211	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2212	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2213	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2214	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2215
		2216	$cf::MAP{$self->path} = $self;
		2217	}
		2218
1600	$self->reset; # polite request, might not happen	2219	$self->reset; # polite request, might not happen
1601	}	2220	}
1602		2221
1603	sub customise_for {	2222	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2223
1606	if ($map->per_player) {	2224	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2225	maps. May block.
		2226
		2227	=cut
		2228
		2229	sub tmp_maps() {
1608	}	2230	[
		2231	map {
		2232	utf8::decode $_;
		2233	/\.map$/
		2234	? normalise $_
		2235	: ()
		2236	} @{ aio_readdir $TMPDIR or [] }
		2237	]
		2238	}
1609		2239
1610	$map	2240	=item $maps = cf::map::random_maps
		2241
		2242	Returns an arrayref with all map paths of currently instantiated and saved
		2243	random maps. May block.
		2244
		2245	=cut
		2246
		2247	sub random_maps() {
		2248	[
		2249	map {
		2250	utf8::decode $_;
		2251	/\.map$/
		2252	? normalise "?random/$_"
		2253	: ()
		2254	} @{ aio_readdir $RANDOMDIR or [] }
		2255	]
1611	}	2256	}
1612		2257
1613	=item cf::map::unique_maps	2258	=item cf::map::unique_maps
1614		2259
1615	Returns an arrayref of cf::path's of all shared maps that have	2260	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2261	instantiated unique items. May block.
1617		2262
1618	=cut	2263	=cut
1619		2264
1620	sub unique_maps() {	2265	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2266	[
1622	or return;	2267	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2268	utf8::decode $_;
1628	next if /\.pst$/;	2269	/\.map$/
1629	next unless /^$PATH_SEP/o;	2270	? normalise $_
1630		2271	: ()
1631	push @paths, new cf::path $_;	2272	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2273	]
1633
1634	\@paths
1635	}	2274	}
1636		2275
1637	package cf;	2276	package cf;
1638		2277
1639	=back	2278	=back
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2296	map { $_, inv_recursive_ $_->inv } @_
1658	}	2297	}
1659		2298
1660	sub inv_recursive {	2299	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2300	inv_recursive_ inv $_[0]
		2301	}
		2302
		2303	=item $ref = $ob->ref
		2304
		2305	creates and returns a persistent reference to an objetc that can be stored as a string.
		2306
		2307	=item $ob = cf::object::deref ($refstring)
		2308
		2309	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2310	even if the object actually exists. May block.
		2311
		2312	=cut
		2313
		2314	sub deref {
		2315	my ($ref) = @_;
		2316
		2317	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2318	my ($uuid, $name) = ($1, $2);
		2319	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2320	or return;
		2321	$pl->ob->uuid eq $uuid
		2322	or return;
		2323
		2324	$pl->ob
		2325	} else {
		2326	warn "$ref: cannot resolve object reference\n";
		2327	undef
		2328	}
1662	}	2329	}
1663		2330
1664	package cf;	2331	package cf;
1665		2332
1666	=back	2333	=back
…		…
1685		2352
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2353	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2354
1688	if ($self->{record_replies}) {	2355	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2356	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2357
1690	} else {	2358	} else {
		2359	my $pl = $self->contr;
		2360
		2361	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2362	my $dialog = $pl->{npc_dialog};
		2363	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2364
		2365	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2366	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2367	$self->message ($msg, $flags);
		2368	}
1693	}	2369	}
		2370	}
		2371
		2372	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2373
		2374	=cut
		2375
		2376	sub cf::object::send_msg {
		2377	my $pl = shift->contr
		2378	or return;
		2379	$pl->send_msg (@_);
1694	}	2380	}
1695		2381
1696	=item $player_object->may ("access")	2382	=item $player_object->may ("access")
1697		2383
1698	Returns wether the given player is authorized to access resource "access"	2384	Returns wether the given player is authorized to access resource "access"
…		…
1711		2397
1712	=item $player_object->enter_link	2398	=item $player_object->enter_link
1713		2399
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2400	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2401
1716	The player should be reaosnably safe there for short amounts of time. You	2402	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2403	I<MUST> call C<leave_link> as soon as possible, though.
1718		2404
		2405	Will never block.
		2406
1719	=item $player_object->leave_link ($map, $x, $y)	2407	=item $player_object->leave_link ($map, $x, $y)
1720		2408
1721	Moves the player out of the specila link map onto the given map. If the	2409	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2410	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2411	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2412	fails, to the emergency map position.
1725		2413
1726	Might block.	2414	Might block.
1727		2415
1728	=cut	2416	=cut
		2417
		2418	sub link_map {
		2419	unless ($LINK_MAP) {
		2420	$LINK_MAP = cf::map::find "{link}"
		2421	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2422	$LINK_MAP->load;
		2423	}
		2424
		2425	$LINK_MAP
		2426	}
1729		2427
1730	sub cf::object::player::enter_link {	2428	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2429	my ($self) = @_;
1732		2430
1733	$self->deactivate_recursive;	2431	$self->deactivate_recursive;
1734		2432
1735	return if $self->map == $LINK_MAP;	2433	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2434
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2435	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2436	if $self->map && $self->map->{path} ne "{link}";
1739		2437
1740	$self->enter_map ($LINK_MAP, 20, 20);	2438	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2439	}
1742		2440
1743	sub cf::object::player::leave_link {	2441	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2442	my ($self, $map, $x, $y) = @_;
		2443
		2444	return unless $self->contr->active;
1745		2445
1746	my $link_pos = delete $self->{_link_pos};	2446	my $link_pos = delete $self->{_link_pos};
1747		2447
1748	unless ($map) {	2448	unless ($map) {
1749	# restore original map position	2449	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2463	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2464	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2465	if $x <=0 && $y <= 0;
1766		2466
1767	$map->load;	2467	$map->load;
1768	$map->load_diag;	2468	$map->load_neighbours;
1769		2469
1770	return unless $self->contr->active;	2470	return unless $self->contr->active;
1771	$self->activate_recursive;	2471	$self->activate_recursive;
		2472
		2473	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2474	$self->enter_map ($map, $x, $y);
1773	}	2475	}
1774		2476
1775	cf::player->attach (	2477	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2478
1779	# abort map switching before logout	2479	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2480	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2481	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2482	the new (success) or old (failed) map position. In either case, $done will
1783	};	2483	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2484
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2485	=cut
		2486
		2487	our $GOTOGEN;
1810		2488
1811	sub cf::object::player::goto {	2489	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2490	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2491
1814	$path = new cf::path $path;	2492	# do generation counting so two concurrent goto's will be executed in-order
		2493	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2494
1816	$self->enter_link;	2495	$self->enter_link;
1817		2496
1818	(async {	2497	(async {
1819	my $map = cf::map::find $path->as_string;	2498	$Coro::current->{desc} = "player::goto $path $x $y";
		2499
		2500	# *tag paths override both path and x|y
		2501	if ($path =~ /^\*(.*)$/) {
		2502	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2503	my $ob = $obs[rand @obs];
		2504
		2505	# see if we actually can go there
		2506	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2507	$ob = $obs[rand @obs];
		2508	} else {
		2509	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2510	}
		2511	# else put us there anyways for now #d#
		2512
		2513	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2514	} else {
		2515	($path, $x, $y) = (undef, undef, undef);
		2516	}
		2517	}
		2518
		2519	my $map = eval {
		2520	my $map = defined $path ? cf::map::find $path : undef;
		2521
		2522	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2523	$map = $map->customise_for ($self);
1821		2524	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2525	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2526	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2527	}
1826		2528
		2529	$map
		2530	};
		2531
		2532	if ($@) {
		2533	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2534	LOG llevError | logBacktrace, Carp::longmess $@;
		2535	}
		2536
		2537	if ($gen == $self->{_goto_generation}) {
		2538	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2539	$self->leave_link ($map, $x, $y);
		2540	}
		2541
		2542	$done->() if $done;
1828	})->prio (1);	2543	})->prio (1);
1829	}	2544	}
1830		2545
1831	=item $player_object->enter_exit ($exit_object)	2546	=item $player_object->enter_exit ($exit_object)
1832		2547
…		…
1834		2549
1835	sub parse_random_map_params {	2550	sub parse_random_map_params {
1836	my ($spec) = @_;	2551	my ($spec) = @_;
1837		2552
1838	my $rmp = { # defaults	2553	my $rmp = { # defaults
1839	xsize => 10,	2554	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2555	ysize => (cf::rndm 15, 40),
		2556	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2557	#layout => string,
1841	};	2558	};
1842		2559
1843	for (split /\n/, $spec) {	2560	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2561	my ($k, $v) = split /\s+/, $_, 2;
1845		2562
…		…
1849	$rmp	2566	$rmp
1850	}	2567	}
1851		2568
1852	sub prepare_random_map {	2569	sub prepare_random_map {
1853	my ($exit) = @_;	2570	my ($exit) = @_;
		2571
		2572	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2573
1855	# all this does is basically replace the /! path by	2574	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2575	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2576	# that depends on the exit object
1858		2577
1859	my $rmp = parse_random_map_params $exit->msg;	2578	my $rmp = parse_random_map_params $exit->msg;
1860		2579
1861	if ($exit->map) {	2580	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2581	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2582	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2583	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2584	$rmp->{origin_y} = $exit->y;
1866	}	2585	}
1867		2586
1868	$rmp->{random_seed} ||= $exit->random_seed;	2587	$rmp->{random_seed} ||= $exit->random_seed;
1869		2588
1870	my $data = cf::to_json $rmp;	2589	my $data = cf::to_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2590	my $md5 = Digest::MD5::md5_hex $data;
		2591	my $meta = "$RANDOMDIR/$md5.meta";
1872		2592
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2593	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2594	aio_write $fh, 0, (length $data), $data, 0;
		2595	undef $fh;
		2596	aio_rename "$meta~", $meta;
1875		2597
1876	$exit->slaying ("?random/$md5");	2598	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2599	$exit->msg (undef);
1878	}	2600	}
1879	}	2601	}
…		…
1881	sub cf::object::player::enter_exit {	2603	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2604	my ($self, $exit) = @_;
1883		2605
1884	return unless $self->type == cf::PLAYER;	2606	return unless $self->type == cf::PLAYER;
1885		2607
		2608	if ($exit->slaying eq "/!") {
		2609	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2610	# the problem is that $exit might not survive long enough
		2611	# so it needs to be done right now, right here
		2612	cf::sync_job { prepare_random_map $exit };
		2613	}
		2614
		2615	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2616	my $hp = $exit->stats->hp;
		2617	my $sp = $exit->stats->sp;
		2618
1886	$self->enter_link;	2619	$self->enter_link;
1887		2620
		2621	# if exit is damned, update players death & WoR home-position
		2622	$self->contr->savebed ($slaying, $hp, $sp)
		2623	if $exit->flag (FLAG_DAMNED);
		2624
1888	(async {	2625	(async {
		2626	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2627
1889	$self->deactivate_recursive; # just to be sure	2628	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2629	unless (eval {
1891	prepare_random_map $exit	2630	$self->goto ($slaying, $hp, $sp);
1892	if $exit->slaying eq "/!";
1893
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1896		2631
1897	1;	2632	1;
1898	}) {	2633	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2634	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2635	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2636	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2637	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2638
1904	warn "ERROR in enter_exit: $@";	2639	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2640	$self->leave_link;
1906	}	2641	}
1907	})->prio (1);	2642	})->prio (1);
…		…
1920		2655
1921	sub cf::client::send_drawinfo {	2656	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2657	my ($self, $text, $flags) = @_;
1923		2658
1924	utf8::encode $text;	2659	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2660	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2661	}
1927		2662
		2663	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2664
		2665	Send a drawinfo or msg packet to the client, formatting the msg for the
		2666	client if neccessary. C<$type> should be a string identifying the type of
		2667	the message, with C<log> being the default. If C<$color> is negative, suppress
		2668	the message unless the client supports the msg packet.
		2669
		2670	=cut
		2671
		2672	our %CHANNEL = (
		2673	"c/identify" => {
		2674	id => "infobox",
		2675	title => "Identify",
		2676	reply => undef,
		2677	tooltip => "Items recently identified",
		2678	},
		2679	"c/examine" => {
		2680	id => "infobox",
		2681	title => "Examine",
		2682	reply => undef,
		2683	tooltip => "Signs and other items you examined",
		2684	},
		2685	"c/lookat" => {
		2686	id => "infobox",
		2687	title => "Look",
		2688	reply => undef,
		2689	tooltip => "What you saw there",
		2690	},
		2691	);
		2692
		2693	sub cf::client::send_msg {
		2694	my ($self, $channel, $msg, $color, @extra) = @_;
		2695
		2696	$msg = $self->pl->expand_cfpod ($msg);
		2697
		2698	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2699
		2700	# check predefined channels, for the benefit of C
		2701	if ($CHANNEL{$channel}) {
		2702	$channel = $CHANNEL{$channel};
		2703
		2704	$self->ext_msg (channel_info => $channel)
		2705	if $self->can_msg;
		2706
		2707	$channel = $channel->{id};
		2708
		2709	} elsif (ref $channel) {
		2710	# send meta info to client, if not yet sent
		2711	unless (exists $self->{channel}{$channel->{id}}) {
		2712	$self->{channel}{$channel->{id}} = $channel;
		2713	$self->ext_msg (channel_info => $channel)
		2714	if $self->can_msg;
		2715	}
		2716
		2717	$channel = $channel->{id};
		2718	}
		2719
		2720	return unless @extra || length $msg;
		2721
		2722	if ($self->can_msg) {
		2723	# default colour, mask it out
		2724	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2725	if $color & cf::NDI_DEF;
		2726
		2727	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2728	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2729	} else {
		2730	if ($color >= 0) {
		2731	# replace some tags by gcfclient-compatible ones
		2732	for ($msg) {
		2733	1 while
		2734	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2735	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2736	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2737	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2738	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2739	}
		2740
		2741	$color &= cf::NDI_COLOR_MASK;
		2742
		2743	utf8::encode $msg;
		2744
		2745	if (0 && $msg =~ /\[/) {
		2746	# COMMAND/INFO
		2747	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2748	} else {
		2749	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2750	$self->send_packet ("drawinfo $color $msg")
		2751	}
		2752	}
		2753	}
		2754	}
		2755
		2756	=item $client->ext_msg ($type, @msg)
		2757
		2758	Sends an ext event to the client.
		2759
		2760	=cut
		2761
		2762	sub cf::client::ext_msg($$@) {
		2763	my ($self, $type, @msg) = @_;
		2764
		2765	if ($self->extcmd == 2) {
		2766	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2767	} elsif ($self->extcmd == 1) { # TODO: remove
		2768	push @msg, msgtype => "event_$type";
		2769	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2770	}
		2771	}
		2772
		2773	=item $client->ext_reply ($msgid, @msg)
		2774
		2775	Sends an ext reply to the client.
		2776
		2777	=cut
		2778
		2779	sub cf::client::ext_reply($$@) {
		2780	my ($self, $id, @msg) = @_;
		2781
		2782	if ($self->extcmd == 2) {
		2783	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2784	} elsif ($self->extcmd == 1) {
		2785	#TODO: version 1, remove
		2786	unshift @msg, msgtype => "reply", msgid => $id;
		2787	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2788	}
		2789	}
1928		2790
1929	=item $success = $client->query ($flags, "text", \&cb)	2791	=item $success = $client->query ($flags, "text", \&cb)
1930		2792
1931	Queues a query to the client, calling the given callback with	2793	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2794	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2795	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		2796
1935	Queries can fail, so check the return code. Or don't, as queries will become	2797	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	2798	become reliable at some point in the future.
1937		2799
1938	=cut	2800	=cut
1939		2801
1940	sub cf::client::query {	2802	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	2803	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	2811	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2812	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		2813
1952	$self->send_packet ($self->{query_queue}[0][0])	2814	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	2815	if @{ $self->{query_queue} } == 1;
		2816
		2817	1
1954	}	2818	}
1955		2819
1956	cf::client->attach (	2820	cf::client->attach (
		2821	on_connect => sub {
		2822	my ($ns) = @_;
		2823
		2824	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2825	},
1957	on_reply => sub {	2826	on_reply => sub {
1958	my ($ns, $msg) = @_;	2827	my ($ns, $msg) = @_;
1959		2828
1960	# this weird shuffling is so that direct followup queries	2829	# this weird shuffling is so that direct followup queries
1961	# get handled first	2830	# get handled first
1962	my $queue = delete $ns->{query_queue}	2831	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2832	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2833
1965	(shift @$queue)->[1]->($msg);	2834	(shift @$queue)->[1]->($msg);
		2835	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2836
1967	push @{ $ns->{query_queue} }, @$queue;	2837	push @{ $ns->{query_queue} }, @$queue;
1968		2838
1969	if (@{ $ns->{query_queue} } == @$queue) {	2839	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2840	if (@$queue) {
…		…
1972	} else {	2842	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2843	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	2844	}
1975	}	2845	}
1976	},	2846	},
		2847	on_exticmd => sub {
		2848	my ($ns, $buf) = @_;
		2849
		2850	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2851
		2852	if (ref $msg) {
		2853	my ($type, $reply, @payload) =
		2854	"ARRAY" eq ref $msg
		2855	? @$msg
		2856	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2857
		2858	my @reply;
		2859
		2860	if (my $cb = $EXTICMD{$type}) {
		2861	@reply = $cb->($ns, @payload);
		2862	}
		2863
		2864	$ns->ext_reply ($reply, @reply)
		2865	if $reply;
		2866
		2867	} else {
		2868	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2869	}
		2870
		2871	cf::override;
		2872	},
1977	);	2873	);
1978		2874
1979	=item $client->async (\&cb)	2875	=item $client->async (\&cb)
1980		2876
1981	Create a new coroutine, running the specified callback. The coroutine will	2877	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022	our $safe = new Safe "safe";	2918	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	2919	our $safe_hole = new Safe::Hole;
2024		2920
2025	$SIG{FPE} = 'IGNORE';	2921	$SIG{FPE} = 'IGNORE';
2026		2922
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2923	$safe->permit_only (Opcode::opset qw(
		2924	:base_core :base_mem :base_orig :base_math
		2925	grepstart grepwhile mapstart mapwhile
		2926	sort time
		2927	));
2028		2928
2029	# here we export the classes and methods available to script code	2929	# here we export the classes and methods available to script code
2030		2930
2031	=pod	2931	=pod
2032		2932
2033	The following fucntions and emthods are available within a safe environment:	2933	The following functions and methods are available within a safe environment:
2034		2934
2035	cf::object contr pay_amount pay_player map	2935	cf::object
		2936	contr pay_amount pay_player map x y force_find force_add destroy
		2937	insert remove name archname title slaying race decrease_ob_nr
		2938
2036	cf::object::player player	2939	cf::object::player
2037	cf::player peaceful	2940	player
2038	cf::map trigger	2941
		2942	cf::player
		2943	peaceful
		2944
		2945	cf::map
		2946	trigger
2039		2947
2040	=cut	2948	=cut
2041		2949
2042	for (	2950	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	2951	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2952	insert remove inv name archname title slaying race
		2953	decrease_ob_nr destroy)],
2044	["cf::object::player" => qw(player)],	2954	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	2955	["cf::player" => qw(peaceful)],
2046	["cf::map" => qw(trigger)],	2956	["cf::map" => qw(trigger)],
2047	) {	2957	) {
2048	no strict 'refs';	2958	no strict 'refs';
…		…
2119	=back	3029	=back
2120		3030
2121	=cut	3031	=cut
2122		3032
2123	#############################################################################	3033	#############################################################################
		3034	# the server's init and main functions
2124		3035
2125	=head2 EXTENSION DATABASE SUPPORT	3036	sub load_facedata($) {
		3037	my ($path) = @_;
2126		3038
2127	Crossfire maintains a very simple database for extension use. It can	3039	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3040	# for this (global event?)
2129	excludes objects.	3041	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3042
2131	The parameter C<$family> should best start with the name of the extension	3043	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3044
2134	=over 4	3045	warn "loading facedata from $path\n";
2135		3046
2136	=item $hashref = cf::db_get $family	3047	my $facedata;
		3048	0 < aio_load $path, $facedata
		3049	or die "$path: $!";
2137		3050
2138	Return a hashref for use by the extension C<$family>, which can be	3051	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3052
2142	=item $value = cf::db_get $family => $key	3053	$facedata->{version} == 2
		3054	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3055
2144	Returns a single value from the database	3056	# patch in the exptable
2145		3057	$facedata->{resource}{"res/exp_table"} = {
2146	=item cf::db_put $family => $hashref	3058	type => FT_RSRC,
2147		3059	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3060	};
		3061	cf::cede_to_tick;
2197		3062
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3063	{
		3064	my $faces = $facedata->{faceinfo};
2202		3065
2203	sub db_get($;$) {	3066	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3067	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}	3068	cf::face::set_visibility $idx, $info->{visibility};
2206	: ($DB->{$_[0]} ||= { })	3069	cf::face::set_magicmap $idx, $info->{magicmap};
2207	}	3070	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3071	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2208		3072
2209	sub db_put($$;$) {	3073	cf::cede_to_tick;
2210	if (@_ >= 3) {
2211	$DB->{$_[0]}{$_[1]} = $_[2];
2212	} else {
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217
2218	cf::global->attach (
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3074	}
2223	);
2224	}
2225		3075
2226	#############################################################################	3076	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3077	next unless $info->{smooth};
		3078	my $idx = cf::face::find $face
		3079	or next;
		3080	if (my $smooth = cf::face::find $info->{smooth}) {
		3081	cf::face::set_smooth $idx, $smooth;
		3082	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3083	} else {
		3084	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3085	}
2228		3086
2229	sub cfg_load {	3087	cf::cede_to_tick;
		3088	}
		3089	}
		3090
		3091	{
		3092	my $anims = $facedata->{animinfo};
		3093
		3094	while (my ($anim, $info) = each %$anims) {
		3095	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3096	cf::cede_to_tick;
		3097	}
		3098
		3099	cf::anim::invalidate_all; # d'oh
		3100	}
		3101
		3102	{
		3103	# TODO: for gcfclient pleasure, we should give resources
		3104	# that gcfclient doesn't grok a >10000 face index.
		3105	my $res = $facedata->{resource};
		3106
		3107	my $soundconf = delete $res->{"res/sound.conf"};
		3108
		3109	while (my ($name, $info) = each %$res) {
		3110	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3111	my $data;
		3112
		3113	if ($info->{type} & 1) {
		3114	# prepend meta info
		3115
		3116	my $meta = $enc->encode ({
		3117	name => $name,
		3118	%{ $info->{meta} || {} },
		3119	});
		3120
		3121	$data = pack "(w/a*)*", $meta, $info->{data};
		3122	} else {
		3123	$data = $info->{data};
		3124	}
		3125
		3126	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3127	cf::face::set_type $idx, $info->{type};
		3128
		3129	cf::cede_to_tick;
		3130	}
		3131
		3132	if ($soundconf) {
		3133	$soundconf = $enc->decode (delete $soundconf->{data});
		3134
		3135	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3136	my $sound = $soundconf->{compat}[$_]
		3137	or next;
		3138
		3139	my $face = cf::face::find "sound/$sound->[1]";
		3140	cf::sound::set $sound->[0] => $face;
		3141	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3142	}
		3143
		3144	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3145	my $face = cf::face::find "sound/$v";
		3146	cf::sound::set $k => $face;
		3147	}
		3148	}
		3149	}
		3150
		3151	1
		3152	}
		3153
		3154	register_exticmd fx_want => sub {
		3155	my ($ns, $want) = @_;
		3156
		3157	while (my ($k, $v) = each %$want) {
		3158	$ns->fx_want ($k, $v);
		3159	}
		3160	};
		3161
		3162	sub reload_regions {
		3163	# HACK to clear player env face cache, we need some signal framework
		3164	# for this (global event?)
		3165	%ext::player_env::MUSIC_FACE_CACHE = ();
		3166
		3167	load_resource_file "$MAPDIR/regions"
		3168	or die "unable to load regions file\n";
		3169
		3170	for (cf::region::list) {
		3171	$_->{match} = qr/$_->{match}/
		3172	if exists $_->{match};
		3173	}
		3174	}
		3175
		3176	sub reload_facedata {
		3177	load_facedata "$DATADIR/facedata"
		3178	or die "unable to load facedata\n";
		3179	}
		3180
		3181	sub reload_archetypes {
		3182	load_resource_file "$DATADIR/archetypes"
		3183	or die "unable to load archetypes\n";
		3184	#d# NEED to laod twice to resolve forward references
		3185	# this really needs to be done in an extra post-pass
		3186	# (which needs to be synchronous, so solve it differently)
		3187	load_resource_file "$DATADIR/archetypes"
		3188	or die "unable to load archetypes\n";
		3189	}
		3190
		3191	sub reload_treasures {
		3192	load_resource_file "$DATADIR/treasures"
		3193	or die "unable to load treasurelists\n";
		3194	}
		3195
		3196	sub reload_resources {
		3197	warn "reloading resource files...\n";
		3198
		3199	reload_regions;
		3200	reload_facedata;
		3201	#reload_archetypes;#d#
		3202	reload_archetypes;
		3203	reload_treasures;
		3204
		3205	warn "finished reloading resource files\n";
		3206	}
		3207
		3208	sub init {
		3209	reload_resources;
		3210	}
		3211
		3212	sub reload_config {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3213	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3214	or return;
2232		3215
2233	local $/;	3216	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3217	*CFG = YAML::Syck::Load <$fh>;
2235		3218
…		…
2249		3232
2250	sub main {	3233	sub main {
2251	# we must not ever block the main coroutine	3234	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3235	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3236	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3237	(async {
		3238	$Coro::current->{desc} = "IDLE BUG HANDLER";
2254	async { Event::one_event };	3239	Event::one_event;
		3240	})->prio (Coro::PRIO_MAX);
2255	};	3241	};
2256		3242
2257	cfg_load;	3243	reload_config;
2258	db_load;	3244	db_init;
2259	load_extensions;	3245	load_extensions;
		3246
		3247	$TICK_WATCHER->start;
2260	Event::loop;	3248	Event::loop;
2261	}	3249	}
2262		3250
2263	#############################################################################	3251	#############################################################################
2264	# initialisation and cleanup	3252	# initialisation and cleanup
2265		3253
2266	# install some emergency cleanup handlers	3254	# install some emergency cleanup handlers
2267	BEGIN {	3255	BEGIN {
2268	for my $signal (qw(INT HUP TERM)) {	3256	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3257	Event->signal (
		3258	reentrant => 0,
2270	data => WF_AUTOCANCEL,	3259	data => WF_AUTOCANCEL,
2271	signal => $signal,	3260	signal => $signal,
		3261	prio => 0,
2272	cb => sub {	3262	cb => sub {
2273	cf::cleanup "SIG$signal";	3263	cf::cleanup "SIG$signal";
2274	},	3264	},
2275	);	3265	);
2276	}	3266	}
2277	}	3267	}
2278		3268
		3269	sub write_runtime {
		3270	my $runtime = "$LOCALDIR/runtime";
		3271
		3272	# first touch the runtime file to show we are still running:
		3273	# the fsync below can take a very very long time.
		3274
		3275	IO::AIO::aio_utime $runtime, undef, undef;
		3276
		3277	my $guard = cf::lock_acquire "write_runtime";
		3278
		3279	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3280	or return;
		3281
		3282	my $value = $cf::RUNTIME + 90 + 10;
		3283	# 10 is the runtime save interval, for a monotonic clock
		3284	# 60 allows for the watchdog to kill the server.
		3285
		3286	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3287	and return;
		3288
		3289	# always fsync - this file is important
		3290	aio_fsync $fh
		3291	and return;
		3292
		3293	# touch it again to show we are up-to-date
		3294	aio_utime $fh, undef, undef;
		3295
		3296	close $fh
		3297	or return;
		3298
		3299	aio_rename "$runtime~", $runtime
		3300	and return;
		3301
		3302	warn "runtime file written.\n";
		3303
		3304	1
		3305	}
		3306
2279	sub emergency_save() {	3307	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3308	my $freeze_guard = cf::freeze_mainloop;
2281		3309
2282	warn "enter emergency perl save\n";	3310	warn "enter emergency perl save\n";
2283		3311
2284	cf::sync_job {	3312	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	3313	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3314	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3315	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3316	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	3317	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3318	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3319	$pl->valid or next;
		3320	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2292	$pl->save;	3321	$pl->save;
2293	}	3322	}
2294	warn "end emergency player save\n";	3323	warn "end emergency player save\n";
2295		3324
2296	warn "begin emergency map save\n";	3325	warn "begin emergency map save\n";
…		…
2298	my $map = $cf::MAP{$path} or next;	3327	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3328	$map->valid or next;
2300	$map->save;	3329	$map->save;
2301	}	3330	}
2302	warn "end emergency map save\n";	3331	warn "end emergency map save\n";
		3332
		3333	warn "begin emergency database checkpoint\n";
		3334	BDB::db_env_txn_checkpoint $DB_ENV;
		3335	warn "end emergency database checkpoint\n";
2303	};	3336	};
2304		3337
2305	warn "leave emergency perl save\n";	3338	warn "leave emergency perl save\n";
2306	}	3339	}
2307		3340
		3341	sub post_cleanup {
		3342	my ($make_core) = @_;
		3343
		3344	warn Carp::longmess "post_cleanup backtrace"
		3345	if $make_core;
		3346	}
		3347
2308	sub reload() {	3348	sub do_reload_perl() {
2309	# can/must only be called in main	3349	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3350	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3351	warn "can only reload from main coroutine";
2312	return;	3352	return;
2313	}	3353	}
2314		3354
2315	warn "reloading...";	3355	warn "reloading...";
2316		3356
2317	warn "freezing server";	3357	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3358
		3359	cf::sync_job {
		3360	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3361	cf::emergency_save;
		3362	cf::write_runtime; # external watchdog should not bark
2320		3363
2321	warn "sync database to disk";	3364	warn "syncing database to disk";
2322	cf::db_sync;	3365	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3366
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3367	# if anything goes wrong in here, we should simply crash as we already saved
2327		3368
2328	warn "cancel all watchers";	3369	warn "cancelling all WF_AUTOCANCEL watchers";
2329	for (Event::all_watchers) {	3370	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3371	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}	3372	}
2332		3373
		3374	warn "flushing outstanding aio requests";
		3375	for (;;) {
		3376	BDB::flush;
		3377	IO::AIO::flush;
		3378	Coro::cede_notself;
		3379	last unless IO::AIO::nreqs || BDB::nreqs;
		3380	warn "iterate...";
		3381	}
		3382
		3383	++$RELOAD;
		3384
2333	warn "cancel all extension coros";	3385	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	3386	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3387	%EXT_CORO = ();
2336		3388
2337	warn "remove commands";	3389	warn "removing commands";
2338	%COMMAND = ();	3390	%COMMAND = ();
2339		3391
2340	warn "remove ext commands";	3392	warn "removing ext/exti commands";
2341	%EXTCMD = ();	3393	%EXTCMD = ();
		3394	%EXTICMD = ();
2342		3395
2343	warn "unload/nuke all extensions";	3396	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	3397	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	3398	warn "... unloading $pkg";
2346		3399
2347	if (my $cb = $pkg->can ("unload")) {	3400	if (my $cb = $pkg->can ("unload")) {
2348	eval {	3401	eval {
…		…
2353		3406
2354	warn "... nuking $pkg";	3407	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	3408	Symbol::delete_package $pkg;
2356	}	3409	}
2357		3410
2358	warn "unload all perl modules loaded from $LIBDIR";	3411	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	3412	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3413	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		3414
2362	warn "removing <$k>";	3415	warn "... unloading $k";
2363	delete $INC{$k};	3416	delete $INC{$k};
2364		3417
2365	$k =~ s/\.pm$//;	3418	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	3419	$k =~ s/\//::/g;
2367		3420
…		…
2370	}	3423	}
2371		3424
2372	Symbol::delete_package $k;	3425	Symbol::delete_package $k;
2373	}	3426	}
2374		3427
2375	warn "get rid of safe::, as good as possible";	3428	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3429	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3430	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3431
2379	warn "unload cf.pm \"a bit\"";	3432	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3433	delete $INC{"cf.pm"};
		3434	delete $INC{"cf/pod.pm"};
2381		3435
2382	# don't, removes xs symbols, too,	3436	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3437	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3438	#Symbol::delete_package __PACKAGE__;
2385		3439
		3440	warn "unload completed, starting to reload now";
		3441
2386	warn "reloading cf.pm";	3442	warn "reloading cf.pm";
2387	require cf;	3443	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3445
2390	warn "load config and database again";	3446	warn "loading config and database again";
2391	cf::cfg_load;	3447	cf::reload_config;
2392	cf::db_load;
2393		3448
2394	warn "load extensions";	3449	warn "loading extensions";
2395	cf::load_extensions;	3450	cf::load_extensions;
2396		3451
2397	warn "reattach attachments to objects/players";	3452	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3453	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3454	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3455	reattach $_ for values %MAP;
2401	};	3456	warn "reattaching attachments to players";
		3457	reattach $_ for values %PLAYER;
2402		3458
2403	if ($@) {	3459	warn "leaving sync_job";
		3460
		3461	1
		3462	} or do {
2404	warn $@;	3463	warn $@;
2405	warn "error while reloading, exiting.";	3464	warn "error while reloading, exiting.";
2406	exit 1;	3465	exit 1;
2407	}	3466	};
2408		3467
2409	warn "reloaded";	3468	warn "reloaded";
2410	};	3469	};
2411		3470
2412	#############################################################################	3471	our $RELOAD_WATCHER; # used only during reload
2413		3472
2414	unless ($LINK_MAP) {	3473	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	3474	# doing reload synchronously and two reloads happen back-to-back,
		3475	# coro crashes during coro_state_free->destroy here.
2416		3476
2417	$LINK_MAP->width (41);	3477	$RELOAD_WATCHER ||= Event->timer (
2418	$LINK_MAP->height (41);	3478	reentrant => 0,
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,	3479	after => 0,
		3480	data => WF_AUTOCANCEL,
2427	cb => sub {	3481	cb => sub {
2428	$_[0]->w->cancel;	3482	do_reload_perl;
2429		3483	undef $RELOAD_WATCHER;
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});	3484	},
2448		3485	);
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	3486	}
2454		3487
2455	register_command "reload" => sub {	3488	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3489	my ($who, $arg) = @_;
2457		3490
2458	if ($who->flag (FLAG_WIZ)) {	3491	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3492	$who->message ("reloading server.");
		3493	async {
		3494	$Coro::current->{desc} = "perl_reload";
		3495	reload_perl;
		3496	};
2462	}	3497	}
2463	};	3498	};
2464		3499
2465	unshift @INC, $LIBDIR;	3500	unshift @INC, $LIBDIR;
		3501
		3502	my $bug_warning = 0;
		3503
		3504	our @WAIT_FOR_TICK;
		3505	our @WAIT_FOR_TICK_BEGIN;
		3506
		3507	sub wait_for_tick {
		3508	return unless $TICK_WATCHER->is_active;
		3509	return if $Coro::current == $Coro::main;
		3510
		3511	my $signal = new Coro::Signal;
		3512	push @WAIT_FOR_TICK, $signal;
		3513	$signal->wait;
		3514	}
		3515
		3516	sub wait_for_tick_begin {
		3517	return unless $TICK_WATCHER->is_active;
		3518	return if $Coro::current == $Coro::main;
		3519
		3520	my $signal = new Coro::Signal;
		3521	push @WAIT_FOR_TICK_BEGIN, $signal;
		3522	$signal->wait;
		3523	}
2466		3524
2467	$TICK_WATCHER = Event->timer (	3525	$TICK_WATCHER = Event->timer (
2468	reentrant => 0,	3526	reentrant => 0,
		3527	parked => 1,
2469	prio => 0,	3528	prio => 0,
2470	at => $NEXT_TICK || $TICK,	3529	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,	3530	data => WF_AUTOCANCEL,
2472	cb => sub {	3531	cb => sub {
		3532	if ($Coro::current != $Coro::main) {
		3533	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3534	unless ++$bug_warning > 10;
		3535	return;
		3536	}
		3537
2473	$NOW = Event::time;	3538	$NOW = $tick_start = Event::time;
2474		3539
2475	cf::server_tick; # one server iteration	3540	cf::server_tick; # one server iteration
		3541
2476	$RUNTIME += $TICK;	3542	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;	3543	$NEXT_TICK += $TICK;
2478		3544
2479	$WAIT_FOR_TICK->broadcast;	3545	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3546	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3547	Coro::async_pool {
		3548	$Coro::current->{desc} = "runtime saver";
		3549	write_runtime
		3550	or warn "ERROR: unable to write runtime file: $!";
		3551	};
		3552	}
		3553
		3554	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3555	$sig->send;
		3556	}
		3557	while (my $sig = shift @WAIT_FOR_TICK) {
		3558	$sig->send;
		3559	}
		3560
		3561	$NOW = Event::time;
2481		3562
2482	# if we are delayed by four ticks or more, skip them all	3563	# if we are delayed by four ticks or more, skip them all
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3564	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2484		3565
2485	$TICK_WATCHER->at ($NEXT_TICK);	3566	$TICK_WATCHER->at ($NEXT_TICK);
2486	$TICK_WATCHER->start;	3567	$TICK_WATCHER->start;
		3568
		3569	$LOAD = ($NOW - $tick_start) / $TICK;
		3570	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3571
		3572	_post_tick;
2487	},	3573	},
2488	);	3574	);
2489		3575
		3576	{
		3577	BDB::min_parallel 8;
2490	IO::AIO::max_poll_time $TICK * 0.2;	3578	BDB::max_poll_time $TICK * 0.1;
2491		3579	$BDB_POLL_WATCHER = Event->io (
2492	Event->io (	3580	reentrant => 0,
2493	fd => IO::AIO::poll_fileno,	3581	fd => BDB::poll_fileno,
2494	poll => 'r',	3582	poll => 'r',
2495	prio => 5,	3583	prio => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,	3584	data => WF_AUTOCANCEL,
		3585	cb => \&BDB::poll_cb,
		3586	);
		3587
		3588	BDB::set_sync_prepare {
		3589	my $status;
		3590	my $current = $Coro::current;
		3591	(
		3592	sub {
		3593	$status = $!;
		3594	$current->ready; undef $current;
		3595	},
		3596	sub {
		3597	Coro::schedule while defined $current;
		3598	$! = $status;
		3599	},
		3600	)
		3601	};
		3602
		3603	unless ($DB_ENV) {
		3604	$DB_ENV = BDB::db_env_create;
		3605	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3606	| BDB::LOG_AUTOREMOVE, 1);
		3607	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3608	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3609
		3610	cf::sync_job {
		3611	eval {
		3612	BDB::db_env_open
		3613	$DB_ENV,
		3614	$BDBDIR,
		3615	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3616	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3617	0666;
		3618
		3619	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3620	};
		3621
		3622	cf::cleanup "db_env_open(db): $@" if $@;
		3623	};
		3624	}
		3625
		3626	$BDB_DEADLOCK_WATCHER = Event->timer (
2502	after => 0,	3627	after => 3,
2503	interval => 10,	3628	interval => 1,
		3629	hard => 1,
		3630	prio => 0,
		3631	data => WF_AUTOCANCEL,
2504	cb => sub {	3632	cb => sub {
2505	(Coro::unblock_sub {	3633	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2506	write_runtime	3634	},
2507	or warn "ERROR: unable to write runtime file: $!";	3635	);
		3636	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3637	after => 11,
		3638	interval => 60,
		3639	hard => 1,
		3640	prio => 0,
		3641	data => WF_AUTOCANCEL,
		3642	cb => sub {
		3643	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3644	},
		3645	);
		3646	$BDB_TRICKLE_WATCHER = Event->timer (
		3647	after => 5,
		3648	interval => 10,
		3649	hard => 1,
		3650	prio => 0,
		3651	data => WF_AUTOCANCEL,
		3652	cb => sub {
		3653	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3654	},
		3655	);
		3656	}
		3657
		3658	{
		3659	IO::AIO::min_parallel 8;
		3660
		3661	undef $Coro::AIO::WATCHER;
		3662	IO::AIO::max_poll_time $TICK * 0.1;
		3663	$AIO_POLL_WATCHER = Event->io (
		3664	reentrant => 0,
		3665	data => WF_AUTOCANCEL,
		3666	fd => IO::AIO::poll_fileno,
		3667	poll => 'r',
		3668	prio => 0,
		3669	cb => \&IO::AIO::poll_cb,
		3670	);
		3671	}
		3672
		3673	my $_log_backtrace;
		3674
		3675	sub _log_backtrace {
		3676	my ($msg, @addr) = @_;
		3677
		3678	$msg =~ s/\n//;
		3679
		3680	# limit the # of concurrent backtraces
		3681	if ($_log_backtrace < 2) {
		3682	++$_log_backtrace;
		3683	async {
		3684	$Coro::current->{desc} = "abt $msg";
		3685
		3686	my @bt = fork_call {
		3687	@addr = map { sprintf "%x", $_ } @addr;
		3688	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3689	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3690	or die "addr2line: $!";
		3691
		3692	my @funcs;
		3693	my @res = <$fh>;
		3694	chomp for @res;
		3695	while (@res) {
		3696	my ($func, $line) = splice @res, 0, 2, ();
		3697	push @funcs, "[$func] $line";
		3698	}
		3699
		3700	@funcs
		3701	};
		3702
		3703	LOG llevInfo, "[ABT] $msg\n";
		3704	LOG llevInfo, "[ABT] $_\n" for @bt;
		3705	--$_log_backtrace;
2508	})->();	3706	};
		3707	} else {
		3708	LOG llevInfo, "[ABT] $msg\n";
		3709	LOG llevInfo, "[ABT] [suppressed]\n";
2509	},	3710	}
2510	);	3711	}
		3712
		3713	# load additional modules
		3714	use cf::pod;
2511		3715
2512	END { cf::emergency_save }	3716	END { cf::emergency_save }
2513		3717
2514	1	3718	1
2515		3719

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines