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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.315 by root, Mon Jul 23 17:53:55 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
20	use BDB ();	26	use BDB ();
21	use Data::Dumper;	27	use Data::Dumper;
22	use Digest::MD5;	28	use Digest::MD5;
23	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
24	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
25	use YAML::Syck ();
26	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
27		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
29
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31		43
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
34		46
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
37	our %COMMAND = ();	51	our %COMMAND = ();
38	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
39		53
40	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
44		59
		60	our $RELOAD; # number of reloads so far
45	our @EVENT;	61	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		62
48	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
49	our $TICK_WATCHER;	76	our $TICK_WATCHER;
50	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
51	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
52	our $NEXT_TICK;	79	our $NEXT_TICK;
53	our $NOW;	80	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		82
56	our $BDB_POLL_WATCHER;	83	our $BDB_POLL_WATCHER;
…		…
62	our $RUNTIME;	89	our $RUNTIME;
63		90
64	our %PLAYER; # all users	91	our %PLAYER; # all users
65	our %MAP; # all maps	92	our %MAP; # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		94
73	# used to convert map paths into valid unix filenames by replacing / by ∕	95	# used to convert map paths into valid unix filenames by replacing / by ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		97
		98	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		99	our $LOADAVG; # same thing, but with alpha-smoothing
		100	our $tick_start; # for load detecting purposes
		101
76	binmode STDOUT;	102	binmode STDOUT;
77	binmode STDERR;	103	binmode STDERR;
78		104
79	# read virtual server time, if available	105	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
81	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
82	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
83	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
84	}	110	}
85		111
86	mkdir cf::localdir;	112	mkdir $_
87	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
88	mkdir cf::localdir . "/" . cf::tmpdir;
89	mkdir cf::localdir . "/" . cf::uniquedir;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		114
93	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
94		116
95	sub cf::map::normalise;	117	sub cf::map::normalise;
96		118
…		…
107	=item $cf::RUNTIME	129	=item $cf::RUNTIME
108		130
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	131	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	132	every server tick.
111		133
112	=item $cf::LIBDIR	134	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		135	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		136	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		137
114	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	139	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		140	unique-items directory, player file directory, random maps directory and
		141	database environment.
116		142
117	=item $cf::NOW	143	=item $cf::NOW
118		144
119	The time of the last (current) server tick.	145	The time of the last (current) server tick.
120		146
121	=item $cf::TICK	147	=item $cf::TICK
122		148
123	The interval between server ticks, in seconds.	149	The interval between server ticks, in seconds.
		150
		151	=item $cf::LOADAVG
		152
		153	The current CPU load on the server (alpha-smoothed), as a value between 0
		154	(none) and 1 (overloaded), indicating how much time is spent on processing
		155	objects per tick. Healthy values are < 0.5.
		156
		157	=item $cf::LOAD
		158
		159	The raw value load value from the last tick.
124		160
125	=item %cf::CFG	161	=item %cf::CFG
126		162
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
128	from wherever your confdir points to.	164	from wherever your confdir points to.
129		165
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		167
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	168	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	169	returns directly I<after> the tick processing (and consequently, can only wake one process
134	processing has been done. Call C<< ->wait >> on them to maximise the	170	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
135	window of cpu time available, or simply to synchronise to the server tick.	171
		172	=item @cf::INVOKE_RESULTS
		173
		174	This array contains the results of the last C<invoke ()> call. When
		175	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		176	that call.
136		177
137	=back	178	=back
138		179
139	=cut	180	=cut
140		181
141	BEGIN {	182	BEGIN {
142	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	184	my $msg = join "", @_;
144	utf8::encode $msg;
145		185
146	$msg .= "\n"	186	$msg .= "\n"
147	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
148		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
149	LOG llevError, $msg;	192	LOG llevError, $msg;
150	};	193	};
151	}	194	}
152		195
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		203
160	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	205	# within the Safe compartment.
162	for my $pkg (qw(	206	for my $pkg (qw(
163	cf::global cf::attachable	207	cf::global cf::attachable
…		…
171	}	215	}
172		216
173	$Event::DIED = sub {	217	$Event::DIED = sub {
174	warn "error in event callback: @_";	218	warn "error in event callback: @_";
175	};	219	};
		220
		221	#############################################################################
176		222
177	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
178		224
179	=over 4	225	=over 4
180		226
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	246	$d
201	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
202	}	248	}
203		249
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
207		251
208	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
209		253
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
218		255
219	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
220		257
221	=cut	258	=cut
222		259
223	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
225	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
226	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
227		264
228	=item cf::lock_wait $string	265	=item cf::lock_wait $string
229		266
230	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
231		268
…		…
237	returned.	274	returned.
238		275
239	Lock names should begin with a unique identifier (for example, cf::map::find	276	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
241		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
242	=cut	283	=cut
243		284
244	our %LOCK;	285	our %LOCK;
245		286
246	sub lock_wait($) {	287	sub lock_wait($) {
…		…
265	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
267	}	308	}
268	}	309	}
269		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
270	sub freeze_mainloop {	317	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
272		319
273	my $guard = Coro::guard {	320	my $guard = Coro::guard {
274	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
275	$WRITE_RUNTIME_WATCHER->start;
276	};	322	};
277	$WRITE_RUNTIME_WATCHER->stop;
278	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
279	$guard	324	$guard
		325	}
		326
		327	=item cf::get_slot $time[, $priority[, $name]]
		328
		329	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		330	This call blocks and returns only when you have at least C<$time> seconds
		331	of cpu time till the next tick. The slot is only valid till the next cede.
		332
		333	The optional C<$name> can be used to identify the job to run. It might be
		334	used for statistical purposes and should identify the same time-class.
		335
		336	Useful for short background jobs.
		337
		338	=cut
		339
		340	our @SLOT_QUEUE;
		341	our $SLOT_QUEUE;
		342
		343	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		344	$SLOT_QUEUE = Coro::async {
		345	my $signal = new Coro::Signal;
		346
		347	while () {
		348	next_job:
		349	my $avail = cf::till_tick;
		350	if ($avail > 0.01) {
		351	for (0 .. $#SLOT_QUEUE) {
		352	if ($SLOT_QUEUE[$_][0] < $avail) {
		353	my $job = splice @SLOT_QUEUE, $_, 1, ();
		354	$job->[2]->send;
		355	Coro::cede;
		356	goto next_job;
		357	}
		358	}
		359	}
		360
		361	if (@SLOT_QUEUE) {
		362	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		363	push @cf::WAIT_FOR_TICK, $signal;
		364	$signal->wait;
		365	} else {
		366	Coro::schedule;
		367	}
		368	}
		369	};
		370
		371	sub get_slot($;$$) {
		372	my ($time, $pri, $name) = @_;
		373
		374	$time = $TICK * .6 if $time > $TICK * .6;
		375	my $sig = new Coro::Signal;
		376
		377	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		378	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		379	$SLOT_QUEUE->ready;
		380	$sig->wait;
280	}	381	}
281		382
282	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
283		384
284	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		390
290	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
291		392
292	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
293		394
294	The design of crossfire+ requires that the main coro ($Coro::main) is	395	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	396	is always able to handle events or runnable, as Crossfire TRT is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	397	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		398	acceptable.
297		399
298	If it must be done, put the blocking parts into C<sync_job>. This will run	400	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	401	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	402	server will be frozen during this time, so the block should either finish
301	fast or be very important.	403	fast or be very important.
…		…
304		406
305	sub sync_job(&) {	407	sub sync_job(&) {
306	my ($job) = @_;	408	my ($job) = @_;
307		409
308	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
309	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
311		415
312	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
313	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
324		428
325	while ($busy) {	429	while ($busy) {
326	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
327	}	431	}
328		432
		433	$time = Event::time - $time;
		434
		435	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		436	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		437
		438	$tick_start += $time; # do not account sync jobs to server load
		439
329	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
330	} else {	441	} else {
331	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
332		443
333	$job->()	444	$job->()
…		…
352	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
353		464
354	$coro	465	$coro
355	}	466	}
356		467
357	sub write_runtime {	468	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		469
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
361	or return;	471	process, returning the results. Everything must be serialisable with
		472	Coro::Storable. May, of course, block. Note that the executed sub may
		473	never block itself or use any form of Event handling.
362		474
363	my $value = $cf::RUNTIME + 90 + 10;	475	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		476
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	477	sub _store_scalar {
368	and return;	478	open my $fh, ">", \my $buf
369		479	or die "fork_call: cannot open fh-to-buf in child : $!";
370	# always fsync - this file is important	480	Storable::store_fd $_[0], $fh;
371	aio_fsync $fh
372	and return;
373
374	close $fh	481	close $fh;
375	or return;
376		482
377	aio_rename "$runtime~", $runtime	483	$buf
378	and return;	484	}
379		485
		486	sub fork_call(&@) {
		487	my ($cb, @args) = @_;
		488
		489	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		490	# or die "socketpair: $!";
		491	pipe my $fh1, my $fh2
		492	or die "pipe: $!";
		493
		494	if (my $pid = fork) {
		495	close $fh2;
		496
		497	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		498	warn "pst<$res>" unless $res =~ /^pst/;
		499	$res = Coro::Storable::thaw $res;
		500
		501	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		502
		503	Carp::confess $$res unless "ARRAY" eq ref $res;
		504
		505	return wantarray ? @$res : $res->[-1];
		506	} else {
		507	reset_signals;
		508	local $SIG{__WARN__};
		509	local $SIG{__DIE__};
		510	# just in case, this hack effectively disables event
		511	# in the child. cleaner and slower would be canceling all watchers,
		512	# but this works for the time being.
		513	local $Coro::idle;
		514	$Coro::current->prio (Coro::PRIO_MAX);
		515
		516	eval {
		517	close $fh1;
		518
		519	my @res = eval { $cb->(@args) };
		520
		521	syswrite $fh2, _store_scalar $@ ? \"$@" : \@res;
		522	close $fh2;
		523	};
		524
		525	warn $@ if $@;
		526	_exit 0;
380	1	527	}
		528	}
		529
		530	=item $value = cf::db_get $family => $key
		531
		532	Returns a single value from the environment database.
		533
		534	=item cf::db_put $family => $key => $value
		535
		536	Stores the given C<$value> in the family. It can currently store binary
		537	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		538
		539	=cut
		540
		541	our $DB;
		542
		543	sub db_init {
		544	unless ($DB) {
		545	$DB = BDB::db_create $DB_ENV;
		546
		547	cf::sync_job {
		548	eval {
		549	$DB->set_flags (BDB::CHKSUM);
		550
		551	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		552	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		553	cf::cleanup "db_open(db): $!" if $!;
		554	};
		555	cf::cleanup "db_open(db): $@" if $@;
		556	};
		557	}
		558	}
		559
		560	sub db_get($$) {
		561	my $key = "$_[0]/$_[1]";
		562
		563	cf::sync_job {
		564	BDB::db_get $DB, undef, $key, my $data;
		565
		566	$! ? ()
		567	: $data
		568	}
		569	}
		570
		571	sub db_put($$$) {
		572	BDB::dbreq_pri 4;
		573	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		574	}
		575
		576	=item cf::cache $id => [$paths...], $processversion => $process
		577
		578	Generic caching function that returns the value of the resource $id,
		579	caching and regenerating as required.
		580
		581	This function can block.
		582
		583	=cut
		584
		585	sub cache {
		586	my ($id, $src, $processversion, $process) = @_;
		587
		588	my $meta =
		589	join "\x00",
		590	$processversion,
		591	map {
		592	aio_stat $_
		593	and Carp::croak "$_: $!";
		594
		595	($_, (stat _)[7,9])
		596	} @$src;
		597
		598	my $dbmeta = db_get cache => "$id/meta";
		599	if ($dbmeta ne $meta) {
		600	# changed, we may need to process
		601
		602	my @data;
		603	my $md5;
		604
		605	for (0 .. $#$src) {
		606	0 <= aio_load $src->[$_], $data[$_]
		607	or Carp::croak "$src->[$_]: $!";
		608	}
		609
		610	# if processing is expensive, check
		611	# checksum first
		612	if (1) {
		613	$md5 =
		614	join "\x00",
		615	$processversion,
		616	map {
		617	Coro::cede;
		618	($src->[$_], Digest::MD5::md5_hex $data[$_])
		619	} 0.. $#$src;
		620
		621
		622	my $dbmd5 = db_get cache => "$id/md5";
		623	if ($dbmd5 eq $md5) {
		624	db_put cache => "$id/meta", $meta;
		625
		626	return db_get cache => "$id/data";
		627	}
		628	}
		629
		630	my $t1 = Time::HiRes::time;
		631	my $data = $process->(\@data);
		632	my $t2 = Time::HiRes::time;
		633
		634	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		635
		636	db_put cache => "$id/data", $data;
		637	db_put cache => "$id/md5" , $md5;
		638	db_put cache => "$id/meta", $meta;
		639
		640	return $data;
		641	}
		642
		643	db_get cache => "$id/data"
		644	}
		645
		646	=item cf::datalog type => key => value, ...
		647
		648	Log a datalog packet of the given type with the given key-value pairs.
		649
		650	=cut
		651
		652	sub datalog($@) {
		653	my ($type, %kv) = @_;
		654	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	655	}
382		656
383	=back	657	=back
384		658
385	=cut	659	=cut
…		…
392	attach callbacks/event handlers (a collection of which is called an "attachment")	666	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
394		668
395	In the following description, CLASS can be any of C<global>, C<object>	669	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	670	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	671	Crossfire TRT).
398		672
399	=over 4	673	=over 4
400		674
401	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
402		676
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
566		840
567	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		845
572	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	847	my $pkg = shift @arg;
574		848
575	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
605	}	879	}
606		880
607	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
608	} else {	882	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	884	}
611		885
612	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
613	}	887	}
614		888
…		…
616	if (ref $_[0]) {	890	if (ref $_[0]) {
617	_object_attach @_;	891	_object_attach @_;
618	} else {	892	} else {
619	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
620	}	894	}
		895	_recalc_want;
621	};	896	};
622		897
623	# all those should be optimised	898	# all those should be optimised
624	sub cf::attachable::detach {	899	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
629	reattach ($obj);	904	reattach ($obj);
630	} else {	905	} else {
631	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
632	}	907	}
		908	_recalc_want;
633	};	909	};
634		910
635	sub cf::attachable::attached {	911	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
637		913
…		…
652	";	928	";
653	die if $@;	929	die if $@;
654	}	930	}
655		931
656	our $override;	932	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	933	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		934
659	sub override {	935	sub override {
660	$override = 1;	936	$override = 1;
661	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
662	}	938	}
663		939
664	sub do_invoke {	940	sub do_invoke {
665	my $event = shift;	941	my $event = shift;
666	my $callbacks = shift;	942	my $callbacks = shift;
667		943
668	@invoke_results = ();	944	@INVOKE_RESULTS = ();
669		945
670	local $override;	946	local $override;
671		947
672	for (@$callbacks) {	948	for (@$callbacks) {
673	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
690		966
691	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
692		968
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		972
697	=back	973	=back
698		974
699	=cut	975	=cut
700		976
701	#############################################################################	977	#############################################################################
702	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
703		990
704	sub reattach {	991	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	993	my ($obj) = @_;
707		994
…		…
784	}	1071	}
785	} else {	1072	} else {
786	aio_unlink $filename;	1073	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1074	aio_unlink "$filename.pst";
788	}	1075	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1076	}
796	}	1077	}
797		1078
798	sub object_freezer_as_string {	1079	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1080	my ($rdata, $objs) = @_;
…		…
805		1086
806	sub object_thawer_load {	1087	sub object_thawer_load {
807	my ($filename) = @_;	1088	my ($filename) = @_;
808		1089
809	my ($data, $av);	1090	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1091
814	(aio_load $filename, $data) >= 0	1092	(aio_load $filename, $data) >= 0
815	or return;	1093	or return;
816		1094
817	unless (aio_stat "$filename.pst") {	1095	unless (aio_stat "$filename.pst") {
…		…
819	or return;	1097	or return;
820	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
821	}	1099	}
822		1100
823	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
825	return ($data, $av);	1103	return ($data, $av);
826	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
827		1111
828	#############################################################################	1112	#############################################################################
829	# command handling &c	1113	# command handling &c
830		1114
831	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1129	}
846		1130
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1132
849	Register a callbackf ro execution when the client sends an extcmd packet.	1133	Register a callback for execution when the client sends an (synchronous)
		1134	extcmd packet. Ext commands will be processed in the order they are
		1135	received by the server, like other user commands. The first argument is
		1136	the logged-in player. Ext commands can only be processed after a player
		1137	has logged in successfully.
850		1138
851	If the callback returns something, it is sent back as if reply was being	1139	If the callback returns something, it is sent back as if reply was being
852	called.	1140	called.
853		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
854	=cut	1153	=cut
855		1154
856	sub register_extcmd {	1155	sub register_extcmd {
857	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
858		1157
859	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
860	}	1165	}
861		1166
862	cf::player->attach (	1167	cf::player->attach (
863	on_command => sub {	1168	on_command => sub {
864	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
873	cf::override;	1178	cf::override;
874	},	1179	},
875	on_extcmd => sub {	1180	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
877		1182
878	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1184
880	if (ref $msg) {	1185	if (ref $msg) {
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1186	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
882	if (my %reply = $cb->($pl, $msg)) {	1187	if (my %reply = $cb->($pl, $msg)) {
883	$pl->ext_reply ($msg->{msgid}, %reply);	1188	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
889		1194
890	cf::override;	1195	cf::override;
891	},	1196	},
892	);	1197	);
893		1198
894	sub load_extension {
895	my ($path) = @_;
896
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
898	my $base = $1;
899	my $pkg = $1;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}
922	die $@;
923	}
924
925	push @EXTS, $pkg;
926	}
927
928	sub load_extensions {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
929	for my $ext (<$LIBDIR/*.ext>) {	1203	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1204	next unless -r $path;
931	eval {	1205
932	load_extension $ext;	1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
933	1	1263	}
934	} or warn "$ext not loaded: $@";	1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
935	}	1269	};
936	}	1270	}
937		1271
938	#############################################################################	1272	#############################################################################
939		1273
		1274	=back
		1275
940	=head2 CORE EXTENSIONS	1276	=head2 CORE EXTENSIONS
941		1277
942	Functions and methods that extend core crossfire objects.	1278	Functions and methods that extend core crossfire objects.
943		1279
944	=cut	1280	=cut
…		…
956	Returns the given player object, loading it if necessary (might block).	1292	Returns the given player object, loading it if necessary (might block).
957		1293
958	=cut	1294	=cut
959		1295
960	sub playerdir($) {	1296	sub playerdir($) {
961	cf::localdir	1297	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1298	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1299	}
967		1300
968	sub path($) {	1301	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1302	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1303
971	(playerdir $login) . "/$login.pl"	1304	(playerdir $login) . "/playerdata"
972	}	1305	}
973		1306
974	sub find_active($) {	1307	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1308	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1309	and $cf::PLAYER{$_[0]}->active
…		…
989	my $login = $_[0];	1322	my $login = $_[0];
990		1323
991	my $guard = cf::lock_acquire "user_find:$login";	1324	my $guard = cf::lock_acquire "user_find:$login";
992		1325
993	$cf::PLAYER{$_[0]} || do {	1326	$cf::PLAYER{$_[0]} || do {
		1327	# rename old playerfiles to new ones
		1328	#TODO: remove when no longer required
		1329	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1330	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1331	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1332	aio_unlink +(playerdir $login) . "/$login.pl";
		1333
994	my $pl = load_pl path $login	1334	my $pl = load_pl path $login
995	or return;	1335	or return;
996	$cf::PLAYER{$login} = $pl	1336	$cf::PLAYER{$login} = $pl
997	}	1337	}
998	}	1338	}
…		…
1035		1375
1036	=cut	1376	=cut
1037		1377
1038	sub quit_character {	1378	sub quit_character {
1039	my ($pl) = @_;	1379	my ($pl) = @_;
		1380
		1381	my $name = $pl->ob->name;
1040		1382
1041	$pl->{deny_save} = 1;	1383	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1384	$pl->password ("*"); # this should lock out the player until we nuked the dir
1043		1385
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1386	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1049	my $path = playerdir $pl;	1391	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1392	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1393	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1394	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1395	$pl->destroy;
		1396
		1397	my $prefix = qr<^~\Q$name\E/>;
		1398
		1399	# nuke player maps
		1400	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1401
1054	IO::AIO::aio_rmtree $temp;	1402	IO::AIO::aio_rmtree $temp;
		1403	}
		1404
		1405	=item $pl->kick
		1406
		1407	Kicks a player out of the game. This destroys the connection.
		1408
		1409	=cut
		1410
		1411	sub kick {
		1412	my ($pl, $kicker) = @_;
		1413
		1414	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1415	$pl->killer ("kicked");
		1416	$pl->ns->destroy;
1055	}	1417	}
1056		1418
1057	=item cf::player::list_logins	1419	=item cf::player::list_logins
1058		1420
1059	Returns am arrayref of all valid playernames in the system, can take a	1421	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1422	while and may block, so not sync_job-capable, ever.
1061		1423
1062	=cut	1424	=cut
1063		1425
1064	sub list_logins {	1426	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1427	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1428	or return [];
1067		1429
1068	my @logins;	1430	my @logins;
1069		1431
1070	for my $login (@$dirs) {	1432	for my $login (@$dirs) {
…		…
1105	}	1467	}
1106		1468
1107	\@paths	1469	\@paths
1108	}	1470	}
1109		1471
		1472	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1473
		1474	Expand crossfire pod fragments into protocol xml.
		1475
		1476	=cut
		1477
		1478	sub expand_cfpod {
		1479	((my $self), (local $_)) = @_;
		1480
		1481	# escape & and <
		1482	s/&/&amp;/g;
		1483	s/(?<![BIUGH])</&lt;/g;
		1484
		1485	# this is buggy, it needs to properly take care of nested <'s
		1486
		1487	1 while
		1488	# replace B<>, I<>, U<> etc.
		1489	s/B<([^\>]*)>/<b>$1<\/b>/
		1490	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1491	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1492	# replace G<male|female> tags
		1493	|| s{G<([^>|]*)\|([^>]*)>}{
		1494	$self->gender ? $2 : $1
		1495	}ge
		1496	# replace H<hint text>
		1497	|| s{H<([^\>]*)>}
		1498	{
		1499	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1500	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1501	"")
		1502	[$self->{hintmode}]
		1503	}ge;
		1504
		1505	# create single paragraphs (very hackish)
		1506	s/(?<=\S)\n(?=\w)/ /g;
		1507
		1508	# compress some whitespace
		1509	s/\s+\n/\n/g; # ws line-ends
		1510	s/\n\n+/\n/g; # double lines
		1511	s/^\n+//; # beginning lines
		1512	s/\n+$//; # ending lines
		1513
		1514	$_
		1515	}
		1516
		1517	sub hintmode {
		1518	$_[0]{hintmode} = $_[1] if @_ > 1;
		1519	$_[0]{hintmode}
		1520	}
		1521
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1522	=item $player->ext_reply ($msgid, %msg)
1111		1523
1112	Sends an ext reply to the player.	1524	Sends an ext reply to the player.
1113		1525
1114	=cut	1526	=cut
1115		1527
1116	sub ext_reply($$$%) {	1528	sub ext_reply($$%) {
1117	my ($self, $id, %msg) = @_;	1529	my ($self, $id, %msg) = @_;
1118		1530
1119	$msg{msgid} = $id;	1531	$msg{msgid} = $id;
1120		1532	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1533	}
1123		1534
1124	package cf;	1535	=item $player->ext_event ($type, %msg)
		1536
		1537	Sends an ext event to the client.
		1538
		1539	=cut
		1540
		1541	sub ext_event($$%) {
		1542	my ($self, $type, %msg) = @_;
		1543
		1544	$self->ns->ext_event ($type, %msg);
		1545	}
		1546
		1547	=head3 cf::region
		1548
		1549	=over 4
		1550
		1551	=cut
		1552
		1553	package cf::region;
		1554
		1555	=item cf::region::find_by_path $path
		1556
		1557	Tries to decuce the likely region for a map knowing only its path.
		1558
		1559	=cut
		1560
		1561	sub find_by_path($) {
		1562	my ($path) = @_;
		1563
		1564	my ($match, $specificity);
		1565
		1566	for my $region (list) {
		1567	if ($region->{match} && $path =~ $region->{match}) {
		1568	($match, $specificity) = ($region, $region->specificity)
		1569	if $region->specificity > $specificity;
		1570	}
		1571	}
		1572
		1573	$match
		1574	}
1125		1575
1126	=back	1576	=back
1127
1128		1577
1129	=head3 cf::map	1578	=head3 cf::map
1130		1579
1131	=over 4	1580	=over 4
1132		1581
…		…
1187	my ($self, $merge) = @_;	1636	my ($self, $merge) = @_;
1188		1637
1189	# we have to keep some variables in memory intact	1638	# we have to keep some variables in memory intact
1190	local $self->{path};	1639	local $self->{path};
1191	local $self->{load_path};	1640	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1641
1195	$self->SUPER::thawer_merge ($merge);	1642	$self->SUPER::thawer_merge ($merge);
1196	}	1643	}
1197		1644
1198	sub normalise {	1645	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1692	$self->init; # pass $1 etc.
1246	return $self;	1693	return $self;
1247	}	1694	}
1248	}	1695	}
1249		1696
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1697	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1698	()
1252	}	1699	}
1253		1700
1254	sub init {	1701	sub init {
1255	my ($self) = @_;	1702	my ($self) = @_;
…		…
1270		1717
1271	# the original (read-only) location	1718	# the original (read-only) location
1272	sub load_path {	1719	sub load_path {
1273	my ($self) = @_;	1720	my ($self) = @_;
1274		1721
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1722	"$MAPDIR/$self->{path}.map"
1276	}	1723	}
1277		1724
1278	# the temporary/swap location	1725	# the temporary/swap location
1279	sub save_path {	1726	sub save_path {
1280	my ($self) = @_;	1727	my ($self) = @_;
1281		1728
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1729	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1730	"$TMPDIR/$path.map"
1284	}	1731	}
1285		1732
1286	# the unique path, undef == no special unique path	1733	# the unique path, undef == no special unique path
1287	sub uniq_path {	1734	sub uniq_path {
1288	my ($self) = @_;	1735	my ($self) = @_;
1289		1736
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1737	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1738	"$UNIQUEDIR/$path"
1292	}	1739	}
1293		1740
1294	# and all this just because we cannot iterate over	1741	# and all this just because we cannot iterate over
1295	# all maps in C++...	1742	# all maps in C++...
1296	sub change_all_map_light {	1743	sub change_all_map_light {
…		…
1298		1745
1299	$_->change_map_light ($change)	1746	$_->change_map_light ($change)
1300	for grep $_->outdoor, values %cf::MAP;	1747	for grep $_->outdoor, values %cf::MAP;
1301	}	1748	}
1302		1749
		1750	sub decay_objects {
		1751	my ($self) = @_;
		1752
		1753	return if $self->{deny_reset};
		1754
		1755	$self->do_decay_objects;
		1756	}
		1757
1303	sub unlink_save {	1758	sub unlink_save {
1304	my ($self) = @_;	1759	my ($self) = @_;
1305		1760
1306	utf8::encode (my $save = $self->save_path);	1761	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1762	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1763	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1764	}
1315		1765
1316	sub load_header_from($) {	1766	sub load_header_from($) {
1317	my ($self, $path) = @_;	1767	my ($self, $path) = @_;
1318		1768
…		…
1368	$self->load_header_orig	1818	$self->load_header_orig
1369	or return;	1819	or return;
1370	$self->prepare_orig;	1820	$self->prepare_orig;
1371	}	1821	}
1372		1822
		1823	$self->{deny_reset} = 1
		1824	if $self->no_reset;
		1825
		1826	$self->default_region (cf::region::find_by_path $self->{path})
		1827	unless $self->default_region;
		1828
1373	1	1829	1
1374	}	1830	}
1375		1831
1376	sub find;	1832	sub find;
1377	sub find {	1833	sub find {
…		…
1389	$map->{last_save} = $cf::RUNTIME;	1845	$map->{last_save} = $cf::RUNTIME;
1390		1846
1391	$map->load_header	1847	$map->load_header
1392	or return;	1848	or return;
1393		1849
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1850	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	1851	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	1852	#$cf::WAIT_FOR_TICK->wait;
1397	$map->reset;	1853	$map->reset;
1398	undef $guard;	1854	undef $guard;
1399	return find $path;	1855	return find $path;
…		…
1410	my ($self) = @_;	1866	my ($self) = @_;
1411		1867
1412	local $self->{deny_reset} = 1; # loading can take a long time	1868	local $self->{deny_reset} = 1; # loading can take a long time
1413		1869
1414	my $path = $self->{path};	1870	my $path = $self->{path};
		1871
		1872	{
1415	my $guard = cf::lock_acquire "map_load:$path";	1873	my $guard = cf::lock_acquire "map_load:$path";
1416		1874
1417	return if $self->in_memory != cf::MAP_SWAPPED;	1875	return if $self->in_memory != cf::MAP_SWAPPED;
1418		1876
1419	$self->in_memory (cf::MAP_LOADING);	1877	$self->in_memory (cf::MAP_LOADING);
1420		1878
1421	$self->alloc;	1879	$self->alloc;
1422		1880
1423	$self->pre_load;	1881	$self->pre_load;
1424
1425	$self->_load_objects ($self->{load_path}, 1)
1426	or return;
1427
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1429	if delete $self->{load_original};
1430
1431	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {
1434	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);
1436	}
1437	}
1438
1439	Coro::cede;
1440
1441	# now do the right thing for maps
1442	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;	1882	Coro::cede;
1449	$self->set_darkness_map;	1883
		1884	$self->_load_objects ($self->{load_path}, 1)
		1885	or return;
		1886
		1887	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1888	if delete $self->{load_original};
		1889
		1890	if (my $uniq = $self->uniq_path) {
		1891	utf8::encode $uniq;
		1892	if (aio_open $uniq, O_RDONLY, 0) {
		1893	$self->clear_unique_items;
		1894	$self->_load_objects ($uniq, 0);
		1895	}
		1896	}
		1897
		1898	Coro::cede;
		1899	# now do the right thing for maps
		1900	$self->link_multipart_objects;
1450	$self->difficulty ($self->estimate_difficulty)	1901	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	1902	unless $self->difficulty;
1452	Coro::cede;	1903	Coro::cede;
		1904
		1905	unless ($self->{deny_activate}) {
		1906	$self->decay_objects;
		1907	$self->fix_auto_apply;
		1908	$self->update_buttons;
		1909	Coro::cede;
		1910	$self->set_darkness_map;
		1911	Coro::cede;
1453	$self->activate;	1912	$self->activate;
		1913	}
		1914
		1915	$self->in_memory (cf::MAP_IN_MEMORY);
1454	}	1916	}
1455		1917
1456	$self->post_load;	1918	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	1919	}
1460		1920
1461	sub customise_for {	1921	sub customise_for {
1462	my ($self, $ob) = @_;	1922	my ($self, $ob) = @_;
1463		1923
1464	return find "~" . $ob->name . "/" . $self->{path}	1924	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	1925	if $self->per_player;
		1926
		1927	# return find "?party/" . $ob->name . "/" . $self->{path}
		1928	# if $self->per_party;
1466		1929
1467	$self	1930	$self
1468	}	1931	}
1469		1932
1470	# find and load all maps in the 3x3 area around a map	1933	# find and load all maps in the 3x3 area around a map
…		…
1517		1980
1518	undef $MAP_PREFETCH{$path};	1981	undef $MAP_PREFETCH{$path};
1519	$MAP_PREFETCHER ||= cf::async {	1982	$MAP_PREFETCHER ||= cf::async {
1520	while (%MAP_PREFETCH) {	1983	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	1984	for my $path (keys %MAP_PREFETCH) {
1522	my $map = find $path	1985	if (my $map = find $path) {
1523	or next;
1524	$map->load;	1986	$map->load;
		1987	}
1525		1988
1526	delete $MAP_PREFETCH{$path};	1989	delete $MAP_PREFETCH{$path};
1527	}	1990	}
1528	}	1991	}
1529	undef $MAP_PREFETCHER;	1992	undef $MAP_PREFETCHER;
…		…
1581		2044
1582	sub reset_at {	2045	sub reset_at {
1583	my ($self) = @_;	2046	my ($self) = @_;
1584		2047
1585	# TODO: safety, remove and allow resettable per-player maps	2048	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2049	return 1e99 if $self->{deny_reset};
1588		2050
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2051	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2052	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2053
…		…
1602	my ($self) = @_;	2064	my ($self) = @_;
1603		2065
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2066	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2067
1606	return if $self->players;	2068	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2069
1609	warn "resetting map ", $self->path;#d#	2070	warn "resetting map ", $self->path;
		2071
		2072	$self->in_memory (cf::MAP_SWAPPED);
		2073
		2074	# need to save uniques path
		2075	unless ($self->{deny_save}) {
		2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2077
		2078	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2079	if $uniq;
		2080	}
1610		2081
1611	delete $cf::MAP{$self->path};	2082	delete $cf::MAP{$self->path};
1612		2083
1613	$self->in_memory (cf::MAP_SWAPPED);
1614	$self->clear;	2084	$self->clear;
1615		2085
1616	$_->clear_links_to ($self) for values %cf::MAP;	2086	$_->clear_links_to ($self) for values %cf::MAP;
1617		2087
1618	$self->unlink_save;	2088	$self->unlink_save;
…		…
1637	$cf::MAP{$self->path} = $self;	2107	$cf::MAP{$self->path} = $self;
1638		2108
1639	$self->reset; # polite request, might not happen	2109	$self->reset; # polite request, might not happen
1640	}	2110	}
1641		2111
		2112	=item $maps = cf::map::tmp_maps
		2113
		2114	Returns an arrayref with all map paths of currently instantiated and saved
		2115	maps. May block.
		2116
		2117	=cut
		2118
		2119	sub tmp_maps() {
		2120	[
		2121	map {
		2122	utf8::decode $_;
		2123	/\.map$/
		2124	? normalise $_
		2125	: ()
		2126	} @{ aio_readdir $TMPDIR or [] }
		2127	]
		2128	}
		2129
		2130	=item $maps = cf::map::random_maps
		2131
		2132	Returns an arrayref with all map paths of currently instantiated and saved
		2133	random maps. May block.
		2134
		2135	=cut
		2136
		2137	sub random_maps() {
		2138	[
		2139	map {
		2140	utf8::decode $_;
		2141	/\.map$/
		2142	? normalise "?random/$_"
		2143	: ()
		2144	} @{ aio_readdir $RANDOMDIR or [] }
		2145	]
		2146	}
		2147
1642	=item cf::map::unique_maps	2148	=item cf::map::unique_maps
1643		2149
1644	Returns an arrayref of paths of all shared maps that have	2150	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2151	instantiated unique items. May block.
1646		2152
1647	=cut	2153	=cut
1648		2154
1649	sub unique_maps() {	2155	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2156	[
1651	or return;	2157	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2158	utf8::decode $_;
1657	next if /\.pst$/;	2159	/\.map$/
1658	next unless /^$PATH_SEP/o;	2160	? normalise $_
1659		2161	: ()
1660	push @paths, cf::map::normalise $_;	2162	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2163	]
1662
1663	\@paths
1664	}	2164	}
1665		2165
1666	package cf;	2166	package cf;
1667		2167
1668	=back	2168	=back
…		…
1714		2214
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2215	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2216
1717	if ($self->{record_replies}) {	2217	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2218	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2219
1719	} else {	2220	} else {
		2221	my $pl = $self->contr;
		2222
		2223	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2224	my $diag = $pl->{npc_dialog};
		2225	$diag->{pl}->ext_reply (
		2226	$diag->{id},
		2227	msgtype => "reply",
		2228	msg => $diag->{pl}->expand_cfpod ($msg),
		2229	add_topics => []
		2230	);
		2231
		2232	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2233	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2234	$self->message ($msg, $flags);
		2235	}
1722	}	2236	}
1723	}	2237	}
1724		2238
1725	=item $player_object->may ("access")	2239	=item $player_object->may ("access")
1726		2240
…		…
1774	$self->deactivate_recursive;	2288	$self->deactivate_recursive;
1775		2289
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2290	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2291
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2292	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2293	if $self->map && $self->map->{path} ne "{link}";
1780		2294
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2295	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2296	}
1783		2297
1784	sub cf::object::player::leave_link {	2298	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2299	my ($self, $map, $x, $y) = @_;
		2300
		2301	return unless $self->contr->active;
1786		2302
1787	my $link_pos = delete $self->{_link_pos};	2303	my $link_pos = delete $self->{_link_pos};
1788		2304
1789	unless ($map) {	2305	unless ($map) {
1790	# restore original map position	2306	# restore original map position
…		…
1808	$map->load;	2324	$map->load;
1809	$map->load_diag;	2325	$map->load_diag;
1810		2326
1811	return unless $self->contr->active;	2327	return unless $self->contr->active;
1812	$self->activate_recursive;	2328	$self->activate_recursive;
		2329
		2330	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2331	$self->enter_map ($map, $x, $y);
1814	}	2332	}
1815		2333
1816	cf::player->attach (	2334	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2335
1820	# abort map switching before logout	2336	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2337	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2338	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2339	the new (success) or old (failed) map position. In either case, $done will
1824	};	2340	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2341
1830	# try to abort aborted map switching on player login :)
1831	# should happen only on crashes
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2342	=cut
		2343
		2344	our $GOTOGEN;
1851		2345
1852	sub cf::object::player::goto {	2346	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2347	my ($self, $path, $x, $y, $check, $done) = @_;
		2348
		2349	# do generation counting so two concurrent goto's will be executed in-order
		2350	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2351
1855	$self->enter_link;	2352	$self->enter_link;
1856		2353
1857	(async {	2354	(async {
1858	my $map = eval {	2355	my $map = eval {
1859	my $map = cf::map::find $path;	2356	my $map = cf::map::find $path;
		2357
		2358	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2359	$map = $map->customise_for ($self);
		2360	$map = $check->($map) if $check && $map;
		2361	} else {
		2362	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2363	}
		2364
1861	$map	2365	$map
		2366	};
		2367
		2368	if ($@) {
		2369	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2370	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2371	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2372
		2373	if ($gen == $self->{_goto_generation}) {
		2374	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2375	$self->leave_link ($map, $x, $y);
		2376	}
		2377
		2378	$done->() if $done;
1866	})->prio (1);	2379	})->prio (1);
1867	}	2380	}
1868		2381
1869	=item $player_object->enter_exit ($exit_object)	2382	=item $player_object->enter_exit ($exit_object)
1870		2383
…		…
1909		2422
1910	$rmp->{random_seed} ||= $exit->random_seed;	2423	$rmp->{random_seed} ||= $exit->random_seed;
1911		2424
1912	my $data = cf::to_json $rmp;	2425	my $data = cf::to_json $rmp;
1913	my $md5 = Digest::MD5::md5_hex $data;	2426	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2427	my $meta = "$RANDOMDIR/$md5.meta";
1915		2428
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2429	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2430	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2431	undef $fh;
1919	aio_rename "$meta~", $meta;	2432	aio_rename "$meta~", $meta;
…		…
1928		2441
1929	return unless $self->type == cf::PLAYER;	2442	return unless $self->type == cf::PLAYER;
1930		2443
1931	if ($exit->slaying eq "/!") {	2444	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job	2445	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2446	# the problem is that $exit might not survive long enough
		2447	# so it needs to be done right now, right here
1933	cf::sync_job { prepare_random_map $exit };	2448	cf::sync_job { prepare_random_map $exit };
1934	}	2449	}
1935		2450
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2451	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;	2452	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;	2453	my $sp = $exit->stats->sp;
1939		2454
1940	$self->enter_link;	2455	$self->enter_link;
		2456
		2457	# if exit is damned, update players death & WoR home-position
		2458	$self->contr->savebed ($slaying, $hp, $sp)
		2459	if $exit->flag (FLAG_DAMNED);
1941		2460
1942	(async {	2461	(async {
1943	$self->deactivate_recursive; # just to be sure	2462	$self->deactivate_recursive; # just to be sure
1944	unless (eval {	2463	unless (eval {
1945	$self->goto ($slaying, $hp, $sp);	2464	$self->goto ($slaying, $hp, $sp);
1946		2465
1947	1;	2466	1;
1948	}) {	2467	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2468	$self->message ("Something went wrong deep within the crossfire server. "
1950	. "I'll try to bring you back to the map you were before. "	2469	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2470	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2471	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2472
1954	warn "ERROR in enter_exit: $@";	2473	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2474	$self->leave_link;
1956	}	2475	}
1957	})->prio (1);	2476	})->prio (1);
…		…
1970		2489
1971	sub cf::client::send_drawinfo {	2490	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2491	my ($self, $text, $flags) = @_;
1973		2492
1974	utf8::encode $text;	2493	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2494	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2495	}
1977		2496
		2497	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2498
		2499	Send a drawinfo or msg packet to the client, formatting the msg for the
		2500	client if neccessary. C<$type> should be a string identifying the type of
		2501	the message, with C<log> being the default. If C<$color> is negative, suppress
		2502	the message unless the client supports the msg packet.
		2503
		2504	=cut
		2505
		2506	sub cf::client::send_msg {
		2507	my ($self, $channel, $msg, $color, @extra) = @_;
		2508
		2509	$msg = $self->pl->expand_cfpod ($msg);
		2510
		2511	$color &= ~cf::NDI_UNIQUE; # just in case...
		2512
		2513	if (ref $channel) {
		2514	# send meta info to client, if not yet sent
		2515	unless (exists $self->{channel}{$channel->{id}}) {
		2516	$self->{channel}{$channel->{id}} = $channel;
		2517	$self->ext_event (channel_info => %$channel);
		2518	}
		2519
		2520	$channel = $channel->{id};
		2521	}
		2522
		2523	return unless @extra || length $msg;
		2524
		2525	if ($self->can_msg) {
		2526	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2527	} else {
		2528	# replace some tags by gcfclient-compatible ones
		2529	for ($msg) {
		2530	1 while
		2531	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2532	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2533	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2534	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2535	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2536	}
		2537
		2538	if ($color >= 0) {
		2539	if (0 && $msg =~ /\[/) {
		2540	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2541	} else {
		2542	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2543	$self->send_packet ("drawinfo $color $msg")
		2544	}
		2545	}
		2546	}
		2547	}
		2548
		2549	=item $client->ext_event ($type, %msg)
		2550
		2551	Sends an ext event to the client.
		2552
		2553	=cut
		2554
		2555	sub cf::client::ext_event($$%) {
		2556	my ($self, $type, %msg) = @_;
		2557
		2558	return unless $self->extcmd;
		2559
		2560	$msg{msgtype} = "event_$type";
		2561	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2562	}
1978		2563
1979	=item $success = $client->query ($flags, "text", \&cb)	2564	=item $success = $client->query ($flags, "text", \&cb)
1980		2565
1981	Queues a query to the client, calling the given callback with	2566	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2567	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2568	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2569
1985	Queries can fail, so check the return code. Or don't, as queries will become	2570	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2571	become reliable at some point in the future.
1987		2572
1988	=cut	2573	=cut
1989		2574
1990	sub cf::client::query {	2575	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2576	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2584	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2585	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2586
2002	$self->send_packet ($self->{query_queue}[0][0])	2587	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2588	if @{ $self->{query_queue} } == 1;
		2589
		2590	1
2004	}	2591	}
2005		2592
2006	cf::client->attach (	2593	cf::client->attach (
		2594	on_connect => sub {
		2595	my ($ns) = @_;
		2596
		2597	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2598	},
2007	on_reply => sub {	2599	on_reply => sub {
2008	my ($ns, $msg) = @_;	2600	my ($ns, $msg) = @_;
2009		2601
2010	# this weird shuffling is so that direct followup queries	2602	# this weird shuffling is so that direct followup queries
2011	# get handled first	2603	# get handled first
…		…
2023	} else {	2615	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2616	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	2617	}
2026	}	2618	}
2027	},	2619	},
		2620	on_exticmd => sub {
		2621	my ($ns, $buf) = @_;
		2622
		2623	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2624
		2625	if (ref $msg) {
		2626	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2627	if (my %reply = $cb->($ns, $msg)) {
		2628	$reply{msgid} = $msg->{msgid};
		2629	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2630	}
		2631	}
		2632	} else {
		2633	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2634	}
		2635
		2636	cf::override;
		2637	},
2028	);	2638	);
2029		2639
2030	=item $client->async (\&cb)	2640	=item $client->async (\&cb)
2031		2641
2032	Create a new coroutine, running the specified callback. The coroutine will	2642	Create a new coroutine, running the specified callback. The coroutine will
…		…
2079		2689
2080	# here we export the classes and methods available to script code	2690	# here we export the classes and methods available to script code
2081		2691
2082	=pod	2692	=pod
2083		2693
2084	The following fucntions and emthods are available within a safe environment:	2694	The following functions and methods are available within a safe environment:
2085		2695
2086	cf::object contr pay_amount pay_player map	2696	cf::object
		2697	contr pay_amount pay_player map x y force_find force_add
		2698	insert remove
		2699
2087	cf::object::player player	2700	cf::object::player
2088	cf::player peaceful	2701	player
2089	cf::map trigger	2702
		2703	cf::player
		2704	peaceful
		2705
		2706	cf::map
		2707	trigger
2090		2708
2091	=cut	2709	=cut
2092		2710
2093	for (	2711	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	2712	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2713	insert remove)],
2095	["cf::object::player" => qw(player)],	2714	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	2715	["cf::player" => qw(peaceful)],
2097	["cf::map" => qw(trigger)],	2716	["cf::map" => qw(trigger)],
2098	) {	2717	) {
2099	no strict 'refs';	2718	no strict 'refs';
…		…
2170	=back	2789	=back
2171		2790
2172	=cut	2791	=cut
2173		2792
2174	#############################################################################	2793	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	2794	# the server's init and main functions
2284		2795
2285	sub load_resources {	2796	sub load_facedata($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	2797	my ($path) = @_;
		2798
		2799	warn "loading facedata from $path\n";
		2800
		2801	my $facedata;
		2802	0 < aio_load $path, $facedata
		2803	or die "$path: $!";
		2804
		2805	$facedata = Coro::Storable::thaw $facedata;
		2806
		2807	$facedata->{version} == 2
		2808	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2809
		2810	{
		2811	my $faces = $facedata->{faceinfo};
		2812
		2813	while (my ($face, $info) = each %$faces) {
		2814	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2815	cf::face::set_visibility $idx, $info->{visibility};
		2816	cf::face::set_magicmap $idx, $info->{magicmap};
		2817	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2818	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2819
		2820	cf::cede_to_tick;
		2821	}
		2822
		2823	while (my ($face, $info) = each %$faces) {
		2824	next unless $info->{smooth};
		2825	my $idx = cf::face::find $face
		2826	or next;
		2827	if (my $smooth = cf::face::find $info->{smooth}) {
		2828	cf::face::set_smooth $idx, $smooth;
		2829	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2830	} else {
		2831	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2832	}
		2833
		2834	cf::cede_to_tick;
		2835	}
		2836	}
		2837
		2838	{
		2839	my $anims = $facedata->{animinfo};
		2840
		2841	while (my ($anim, $info) = each %$anims) {
		2842	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2843	cf::cede_to_tick;
		2844	}
		2845
		2846	cf::anim::invalidate_all; # d'oh
		2847	}
		2848
		2849	{
		2850	# TODO: for gcfclient pleasure, we should give resources
		2851	# that gcfclient doesn't grok a >10000 face index.
		2852	my $res = $facedata->{resource};
		2853	my $enc = JSON::XS->new->utf8->canonical;
		2854
		2855	while (my ($name, $info) = each %$res) {
		2856	my $meta = $enc->encode ({
		2857	name => $name,
		2858	type => $info->{type},
		2859	copyright => $info->{copyright}, #TODO#
		2860	});
		2861
		2862	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2863
		2864	if ($name =~ /\.jpg$/) {
		2865	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2866	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2867	} else {
		2868	my $data = pack "(w/a*)*", $meta, $info->{data};
		2869	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2870
		2871	cf::face::set_type $idx, 1;
		2872	cf::face::set_data $idx, 0, $data, $chk;
		2873	}
		2874
		2875	cf::cede_to_tick;
		2876	}
		2877	}
		2878
		2879	1
		2880	}
		2881
		2882	sub reload_regions {
		2883	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	2884	or die "unable to load regions file\n";
		2885
		2886	for (cf::region::list) {
		2887	$_->{match} = qr/$_->{match}/
		2888	if exists $_->{match};
		2889	}
		2890	}
		2891
		2892	sub reload_facedata {
		2893	load_facedata "$DATADIR/facedata"
		2894	or die "unable to load facedata\n";
		2895	}
		2896
		2897	sub reload_archetypes {
		2898	load_resource_file "$DATADIR/archetypes"
		2899	or die "unable to load archetypes\n";
		2900	#d# NEED to laod twice to resolve forward references
		2901	# this really needs to be done in an extra post-pass
		2902	# (which needs to be synchronous, so solve it differently)
		2903	load_resource_file "$DATADIR/archetypes"
		2904	or die "unable to load archetypes\n";
		2905	}
		2906
		2907	sub reload_treasures {
		2908	load_resource_file "$DATADIR/treasures"
		2909	or die "unable to load treasurelists\n";
		2910	}
		2911
		2912	sub reload_resources {
		2913	warn "reloading resource files...\n";
		2914
		2915	reload_regions;
		2916	reload_facedata;
		2917	#reload_archetypes;#d#
		2918	reload_archetypes;
		2919	reload_treasures;
		2920
		2921	warn "finished reloading resource files\n";
		2922	}
		2923
		2924	sub init {
		2925	reload_resources;
2288	}	2926	}
2289		2927
2290	sub cfg_load {	2928	sub cfg_load {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	2929	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	2930	or return;
2293		2931
2294	local $/;	2932	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	2933	*CFG = YAML::Syck::Load <$fh>;
2296		2934
…		…
2304	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	2942	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2305	and die "WARNING: m(un)lockall failed: $!\n";	2943	and die "WARNING: m(un)lockall failed: $!\n";
2306	};	2944	};
2307	warn $@ if $@;	2945	warn $@ if $@;
2308	}	2946	}
2309	}
2310
2311	sub init {
2312	load_resources;
2313	}	2947	}
2314		2948
2315	sub main {	2949	sub main {
2316	# we must not ever block the main coroutine	2950	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	2951	local $Coro::idle = sub {
…		…
2320	Event::one_event;	2954	Event::one_event;
2321	})->prio (Coro::PRIO_MAX);	2955	})->prio (Coro::PRIO_MAX);
2322	};	2956	};
2323		2957
2324	cfg_load;	2958	cfg_load;
2325	db_load;	2959	db_init;
2326	load_extensions;	2960	load_extensions;
2327		2961
2328	$TICK_WATCHER->start;	2962	$TICK_WATCHER->start;
2329	Event::loop;	2963	Event::loop;
2330	}	2964	}
…		…
2345	},	2979	},
2346	);	2980	);
2347	}	2981	}
2348	}	2982	}
2349		2983
		2984	sub write_runtime {
		2985	my $runtime = "$LOCALDIR/runtime";
		2986
		2987	# first touch the runtime file to show we are still running:
		2988	# the fsync below can take a very very long time.
		2989
		2990	IO::AIO::aio_utime $runtime, undef, undef;
		2991
		2992	my $guard = cf::lock_acquire "write_runtime";
		2993
		2994	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2995	or return;
		2996
		2997	my $value = $cf::RUNTIME + 90 + 10;
		2998	# 10 is the runtime save interval, for a monotonic clock
		2999	# 60 allows for the watchdog to kill the server.
		3000
		3001	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3002	and return;
		3003
		3004	# always fsync - this file is important
		3005	aio_fsync $fh
		3006	and return;
		3007
		3008	# touch it again to show we are up-to-date
		3009	aio_utime $fh, undef, undef;
		3010
		3011	close $fh
		3012	or return;
		3013
		3014	aio_rename "$runtime~", $runtime
		3015	and return;
		3016
		3017	warn "runtime file written.\n";
		3018
		3019	1
		3020	}
		3021
2350	sub emergency_save() {	3022	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3023	my $freeze_guard = cf::freeze_mainloop;
2352		3024
2353	warn "enter emergency perl save\n";	3025	warn "enter emergency perl save\n";
2354		3026
…		…
2369	my $map = $cf::MAP{$path} or next;	3041	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3042	$map->valid or next;
2371	$map->save;	3043	$map->save;
2372	}	3044	}
2373	warn "end emergency map save\n";	3045	warn "end emergency map save\n";
		3046
		3047	warn "begin emergency database checkpoint\n";
		3048	BDB::db_env_txn_checkpoint $DB_ENV;
		3049	warn "end emergency database checkpoint\n";
2374	};	3050	};
2375		3051
2376	warn "leave emergency perl save\n";	3052	warn "leave emergency perl save\n";
2377	}	3053	}
2378		3054
		3055	sub post_cleanup {
		3056	my ($make_core) = @_;
		3057
		3058	warn Carp::longmess "post_cleanup backtrace"
		3059	if $make_core;
		3060	}
		3061
2379	sub reload() {	3062	sub do_reload_perl() {
2380	# can/must only be called in main	3063	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3064	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3065	warn "can only reload from main coroutine";
2383	return;	3066	return;
2384	}	3067	}
2385		3068
2386	warn "reloading...";	3069	warn "reloading...";
2387		3070
2388	warn "cancelling server ticker";	3071	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3072
		3073	cf::sync_job {
		3074	cf::write_runtime; # external watchdog should not bark
2391	cf::emergency_save;	3075	cf::emergency_save;
		3076	cf::write_runtime; # external watchdog should not bark
2392		3077
2393	eval {	3078	warn "syncing database to disk";
		3079	BDB::db_env_txn_checkpoint $DB_ENV;
		3080
2394	# if anything goes wrong in here, we should simply crash as we already saved	3081	# if anything goes wrong in here, we should simply crash as we already saved
2395
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398		3082
2399	warn "cancelling all WF_AUTOCANCEL watchers";	3083	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {	3084	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;	3085	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}	3086	}
2403		3087
2404	warn "flushing outstanding aio requests";	3088	warn "flushing outstanding aio requests";
2405	for (;;) {	3089	for (;;) {
		3090	BDB::flush;
2406	IO::AIO::flush;	3091	IO::AIO::flush;
2407	Coro::cede;	3092	Coro::cede;
2408	last unless IO::AIO::nreqs;	3093	last unless IO::AIO::nreqs || BDB::nreqs;
2409	warn "iterate...";	3094	warn "iterate...";
2410	}	3095	}
		3096
		3097	++$RELOAD;
2411		3098
2412	warn "cancelling all extension coros";	3099	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;	3100	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();	3101	%EXT_CORO = ();
2415		3102
2416	warn "removing commands";	3103	warn "removing commands";
2417	%COMMAND = ();	3104	%COMMAND = ();
2418		3105
2419	warn "removing ext commands";	3106	warn "removing ext/exti commands";
2420	%EXTCMD = ();	3107	%EXTCMD = ();
		3108	%EXTICMD = ();
2421		3109
2422	warn "unloading/nuking all extensions";	3110	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {	3111	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";	3112	warn "... unloading $pkg";
2425		3113
…		…
2455	Symbol::delete_package "safe::$_"	3143	Symbol::delete_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3144	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3145
2458	warn "unloading cf.pm \"a bit\"";	3146	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3147	delete $INC{"cf.pm"};
		3148	delete $INC{"cf/pod.pm"};
2460		3149
2461	# don't, removes xs symbols, too,	3150	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3151	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3152	#Symbol::delete_package __PACKAGE__;
2464		3153
…		…
2468	require cf;	3157	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3158	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		3159
2471	warn "loading config and database again";	3160	warn "loading config and database again";
2472	cf::cfg_load;	3161	cf::cfg_load;
2473	cf::db_load;
2474		3162
2475	warn "loading extensions";	3163	warn "loading extensions";
2476	cf::load_extensions;	3164	cf::load_extensions;
2477		3165
2478	warn "reattaching attachments to objects/players";	3166	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3167	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3168	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3169	reattach $_ for values %MAP;
		3170	warn "reattaching attachments to players";
		3171	reattach $_ for values %PLAYER;
2482		3172
2483	warn "loading reloadable resources";	3173	warn "leaving sync_job";
2484	load_resources;
2485		3174
2486	warn "restarting server ticker";	3175	1
2487		3176	} or do {
2488	$TICK_WATCHER->start;
2489	};
2490
2491	if ($@) {
2492	warn $@;	3177	warn $@;
2493	warn "error while reloading, exiting.";	3178	warn "error while reloading, exiting.";
2494	exit 1;	3179	exit 1;
2495	}	3180	};
2496		3181
2497	warn "reloaded";	3182	warn "reloaded";
2498	};	3183	};
2499		3184
2500	our $RELOAD_WATCHER; # used only during reload	3185	our $RELOAD_WATCHER; # used only during reload
2501		3186
		3187	sub reload_perl() {
		3188	# doing reload synchronously and two reloads happen back-to-back,
		3189	# coro crashes during coro_state_free->destroy here.
		3190
		3191	$RELOAD_WATCHER ||= Event->timer (
		3192	reentrant => 0,
		3193	after => 0,
		3194	data => WF_AUTOCANCEL,
		3195	cb => sub {
		3196	do_reload_perl;
		3197	undef $RELOAD_WATCHER;
		3198	},
		3199	);
		3200	}
		3201
2502	register_command "reload" => sub {	3202	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3203	my ($who, $arg) = @_;
2504		3204
2505	if ($who->flag (FLAG_WIZ)) {	3205	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3206	$who->message ("reloading server.");
2507		3207	async { reload_perl };
2508	# doing reload synchronously and two reloads happen back-to-back,
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);
2520	}	3208	}
2521	};	3209	};
2522		3210
2523	unshift @INC, $LIBDIR;	3211	unshift @INC, $LIBDIR;
2524		3212
2525	my $bug_warning = 0;	3213	my $bug_warning = 0;
2526		3214
		3215	our @WAIT_FOR_TICK;
		3216	our @WAIT_FOR_TICK_BEGIN;
		3217
		3218	sub wait_for_tick {
		3219	return unless $TICK_WATCHER->is_active;
		3220	return if $Coro::current == $Coro::main;
		3221
		3222	my $signal = new Coro::Signal;
		3223	push @WAIT_FOR_TICK, $signal;
		3224	$signal->wait;
		3225	}
		3226
		3227	sub wait_for_tick_begin {
		3228	return unless $TICK_WATCHER->is_active;
		3229	return if $Coro::current == $Coro::main;
		3230
		3231	my $signal = new Coro::Signal;
		3232	push @WAIT_FOR_TICK_BEGIN, $signal;
		3233	$signal->wait;
		3234	}
		3235
		3236	my $min = 1e6;#d#
		3237	my $avg = 10;
2527	$TICK_WATCHER = Event->timer (	3238	$TICK_WATCHER = Event->timer (
2528	reentrant => 0,	3239	reentrant => 0,
2529	parked => 1,	3240	parked => 1,
2530	prio => 0,	3241	prio => 0,
2531	at => $NEXT_TICK || $TICK,	3242	at => $NEXT_TICK || $TICK,
…		…
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3246	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3247	unless ++$bug_warning > 10;
2537	return;	3248	return;
2538	}	3249	}
2539		3250
2540	$NOW = Event::time;	3251	$NOW = $tick_start = Event::time;
2541		3252
2542	cf::server_tick; # one server iteration	3253	cf::server_tick; # one server iteration
		3254
		3255	0 && sync_job {#d#
		3256	for(1..10) {
		3257	my $t = Event::time;
		3258	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3259	or die;
		3260
		3261	$map->width (50);
		3262	$map->height (50);
		3263	$map->alloc;
		3264	$map->_load_objects ("/tmp/x.map", 1);
		3265	my $t = Event::time - $t;
		3266
		3267	#next unless $t < 0.0013;#d#
		3268	if ($t < $min) {
		3269	$min = $t;
		3270	}
		3271	$avg = $avg * 0.99 + $t * 0.01;
		3272	}
		3273	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3274	exit 0;
		3275	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3276	};
		3277
2543	$RUNTIME += $TICK;	3278	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;	3279	$NEXT_TICK += $TICK;
2545		3280
2546	$WAIT_FOR_TICK->broadcast;	3281	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3282	$NEXT_RUNTIME_WRITE = $NOW + 10;
2548		3283	Coro::async_pool {
2549	Event::sweep;	3284	write_runtime
2550	Coro::cede_notself;	3285	or warn "ERROR: unable to write runtime file: $!";
		3286	};
2551		3287	}
		3288
2552	# my $AFTER = Event::time;	3289	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#	3290	# warn $AFTER - $NOW;#d#
2554		3291
		3292	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3293	$sig->send;
		3294	}
		3295	while (my $sig = shift @WAIT_FOR_TICK) {
		3296	$sig->send;
		3297	}
		3298
		3299	$NOW = Event::time;
		3300
2555	# if we are delayed by four ticks or more, skip them all	3301	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3302	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2557		3303
2558	$TICK_WATCHER->at ($NEXT_TICK);	3304	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;	3305	$TICK_WATCHER->start;
		3306
		3307	$LOAD = ($NOW - $tick_start) / $TICK;
		3308	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3309
		3310	_post_tick;
		3311
		3312
2560	},	3313	},
2561	);	3314	);
2562		3315
2563	{	3316	{
2564	BDB::max_poll_time $TICK * 0.1;	3317	BDB::max_poll_time $TICK * 0.1;
…		…
2589		3342
2590	unless ($DB_ENV) {	3343	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3344	$DB_ENV = BDB::db_env_create;
2592		3345
2593	cf::sync_job {	3346	cf::sync_job {
		3347	eval {
2594	BDB::db_env_open	3348	BDB::db_env_open
2595	$DB_ENV,	3349	$DB_ENV,
2596	$BDB_ENV_DIR,	3350	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3351	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3352	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3353	0666;
2600		3354
2601	cf::cleanup "$!" if $!;	3355	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3356
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3357	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2604	$DB_ENV->set_lk_detect;	3358	$DB_ENV->set_lk_detect;
		3359	};
		3360
		3361	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3362	};
2606	}	3363	}
2607	}	3364	}
2608		3365
2609	{	3366	{
…		…
2611		3368
2612	undef $Coro::AIO::WATCHER;	3369	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3370	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3371	$AIO_POLL_WATCHER = Event->io (
2615	reentrant => 0,	3372	reentrant => 0,
		3373	data => WF_AUTOCANCEL,
2616	fd => IO::AIO::poll_fileno,	3374	fd => IO::AIO::poll_fileno,
2617	poll => 'r',	3375	poll => 'r',
2618	prio => 6,	3376	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,	3377	cb => \&IO::AIO::poll_cb,
2621	);	3378	);
2622	}	3379	}
2623		3380
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3381	my $_log_backtrace;
2625	reentrant => 0,	3382
2626	data => WF_AUTOCANCEL,	3383	sub _log_backtrace {
2627	after => 1,	3384	my ($msg, @addr) = @_;
2628	interval => 10,	3385
2629	prio => 6, # keep it lowest so it acts like a watchdog	3386	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3387
2631	write_runtime	3388	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3389	if ($_log_backtrace < 2) {
		3390	++$_log_backtrace;
		3391	async {
		3392	my @bt = fork_call {
		3393	@addr = map { sprintf "%x", $_ } @addr;
		3394	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3395	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3396	or die "addr2line: $!";
		3397
		3398	my @funcs;
		3399	my @res = <$fh>;
		3400	chomp for @res;
		3401	while (@res) {
		3402	my ($func, $line) = splice @res, 0, 2, ();
		3403	push @funcs, "[$func] $line";
		3404	}
		3405
		3406	@funcs
		3407	};
		3408
		3409	LOG llevInfo, "[ABT] $msg\n";
		3410	LOG llevInfo, "[ABT] $_\n" for @bt;
		3411	--$_log_backtrace;
		3412	};
		3413	} else {
		3414	LOG llevInfo, "[ABT] $msg\n";
		3415	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3416	}
2634	);	3417	}
		3418
		3419	# load additional modules
		3420	use cf::pod;
2635		3421
2636	END { cf::emergency_save }	3422	END { cf::emergency_save }
2637		3423
2638	1	3424	1
2639		3425

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