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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.199 by root, Mon Jan 29 14:46:01 2007 UTC vs.
Revision 1.326 by root, Tue Jul 31 17:33:15 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	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 ();
		26	use BDB ();
20	use Data::Dumper;	27	use Data::Dumper;
21	use Digest::MD5;	28	use Digest::MD5;
22	use Fcntl;	29	use Fcntl;
		30	use YAML::Syck ();
23	use IO::AIO 2.32 ();	31	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	32	use Time::HiRes;
		33	use Compress::LZF;
		34	use Digest::MD5 ();
26		35
		36	# configure various modules to our taste
		37	#
		38	$Storable::canonical = 1; # reduce rsync transfers
		39	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		40	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		41
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	42	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
49	our $AIO_POLL_WATCHER;	77	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	79	our $NEXT_TICK;
52	our $NOW;	80	our $NOW;
		81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $DB_ENV;
53		85
54	our %CFG;	86	our %CFG;
55		87
56	our $UPTIME; $UPTIME ||= time;	88	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	89	our $RUNTIME;
58		90
59	our %PLAYER; # all users	91	our %PLAYER; # all users
60	our %MAP; # all maps	92	our %MAP; # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	93	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		94
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	96	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $tick_start; # for load detecting purposes
		101
70	binmode STDOUT;	102	binmode STDOUT;
71	binmode STDERR;	103	binmode STDERR;
72		104
73	# read virtual server time, if available	105	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	106	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75	open my $fh, "<", cf::localdir . "/runtime"	107	open my $fh, "<", "$LOCALDIR/runtime"
76	or die "unable to read runtime file: $!";	108	or die "unable to read runtime file: $!";
77	$RUNTIME = <$fh> + 0.;	109	$RUNTIME = <$fh> + 0.;
78	}	110	}
79		111
80	mkdir cf::localdir;	112	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	113	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		114
86	our $EMERGENCY_POSITION;	115	our $EMERGENCY_POSITION;
87		116
88	sub cf::map::normalise;	117	sub cf::map::normalise;
89		118
…		…
100	=item $cf::RUNTIME	129	=item $cf::RUNTIME
101		130
102	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
103	every server tick.	132	every server tick.
104		133
105	=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
106		137
107	The perl library directory, where extensions and cf-specific modules can	138	Various directories - "/etc", read-only install directory, perl-library
108	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.
109		142
110	=item $cf::NOW	143	=item $cf::NOW
111		144
112	The time of the last (current) server tick.	145	The time of the last (current) server tick.
113		146
114	=item $cf::TICK	147	=item $cf::TICK
115		148
116	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.
117		160
118	=item %cf::CFG	161	=item %cf::CFG
119		162
120	Configuration for the server, loaded from C</etc/crossfire/config>, or	163	Configuration for the server, loaded from C</etc/crossfire/config>, or
121	from wherever your confdir points to.	164	from wherever your confdir points to.
122		165
123	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	166	=item cf::wait_for_tick, cf::wait_for_tick_begin
124		167
125	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
126	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
127	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.
128	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.
129		177
130	=back	178	=back
131		179
132	=cut	180	=cut
133		181
134	BEGIN {	182	BEGIN {
135	*CORE::GLOBAL::warn = sub {	183	*CORE::GLOBAL::warn = sub {
136	my $msg = join "", @_;	184	my $msg = join "", @_;
137	utf8::encode $msg;
138		185
139	$msg .= "\n"	186	$msg .= "\n"
140	unless $msg =~ /\n$/;	187	unless $msg =~ /\n$/;
141		188
		189	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		190
		191	utf8::encode $msg;
142	LOG llevError, $msg;	192	LOG llevError, $msg;
143	};	193	};
144	}	194	}
145		195
146	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
147	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
148	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
149	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
150	@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';
151	@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)
152		203
153	# 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
154	# within the Safe compartment.	205	# within the Safe compartment.
155	for my $pkg (qw(	206	for my $pkg (qw(
156	cf::global cf::attachable	207	cf::global cf::attachable
…		…
164	}	215	}
165		216
166	$Event::DIED = sub {	217	$Event::DIED = sub {
167	warn "error in event callback: @_";	218	warn "error in event callback: @_";
168	};	219	};
		220
		221	#############################################################################
169		222
170	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
171		224
172	=over 4	225	=over 4
173		226
…		…
192	$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;
193	$d	246	$d
194	} || "[unable to dump $_[0]: '$@']";	247	} || "[unable to dump $_[0]: '$@']";
195	}	248	}
196		249
197	use JSON::Syck (); # TODO# replace by JSON::PC once working
198
199	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
200		251
201	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
202		253
203	=cut
204
205	sub from_json($) {
206	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
207	JSON::Syck::Load $_[0]
208	}
209
210	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
211		255
212	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
213		257
214	=cut	258	=cut
215		259
216	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
217	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
218	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
219	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
220		264
221	=item cf::lock_wait $string	265	=item cf::lock_wait $string
222		266
223	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
224		268
…		…
230	returned.	274	returned.
231		275
232	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
233	uses map_find and cf::map::load uses map_load).	277	uses map_find and cf::map::load uses map_load).
234		278
		279	=item $locked = cf::lock_active $string
		280
		281	Return true if the lock is currently active, i.e. somebody has locked it.
		282
235	=cut	283	=cut
236		284
237	our %LOCK;	285	our %LOCK;
238		286
239	sub lock_wait($) {	287	sub lock_wait($) {
…		…
258	# wake up all waiters, to be on the safe side	306	# wake up all waiters, to be on the safe side
259	$_->ready for @{ delete $LOCK{$key} };	307	$_->ready for @{ delete $LOCK{$key} };
260	}	308	}
261	}	309	}
262		310
		311	sub lock_active($) {
		312	my ($key) = @_;
		313
		314	! ! $LOCK{$key}
		315	}
		316
263	sub freeze_mainloop {	317	sub freeze_mainloop {
264	return unless $TICK_WATCHER->is_active;	318	return unless $TICK_WATCHER->is_active;
265		319
266	my $guard = Coro::guard {	320	my $guard = Coro::guard {
267	$TICK_WATCHER->start;	321	$TICK_WATCHER->start;
268	$WRITE_RUNTIME_WATCHER->start;
269	};	322	};
270	$WRITE_RUNTIME_WATCHER->stop;
271	$TICK_WATCHER->stop;	323	$TICK_WATCHER->stop;
272	$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;
273	}	381	}
274		382
275	=item cf::async { BLOCK }	383	=item cf::async { BLOCK }
276		384
277	Currently the same as Coro::async_pool, meaning you cannot use	385	Currently the same as Coro::async_pool, meaning you cannot use
…		…
282		390
283	BEGIN { *async = \&Coro::async_pool }	391	BEGIN { *async = \&Coro::async_pool }
284		392
285	=item cf::sync_job { BLOCK }	393	=item cf::sync_job { BLOCK }
286		394
287	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)
288	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
289	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.
290		399
291	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
292	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
293	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
294	fast or be very important.	403	fast or be very important.
…		…
297		406
298	sub sync_job(&) {	407	sub sync_job(&) {
299	my ($job) = @_;	408	my ($job) = @_;
300		409
301	if ($Coro::current == $Coro::main) {	410	if ($Coro::current == $Coro::main) {
		411	my $time = Event::time;
		412
302	# this is the main coro, too bad, we have to block	413	# this is the main coro, too bad, we have to block
303	# till the operation succeeds, freezing the server :/	414	# till the operation succeeds, freezing the server :/
304		415
305	# TODO: use suspend/resume instead	416	# TODO: use suspend/resume instead
306	# (but this is cancel-safe)	417	# (but this is cancel-safe)
…		…
317		428
318	while ($busy) {	429	while ($busy) {
319	Coro::cede or Event::one_event;	430	Coro::cede or Event::one_event;
320	}	431	}
321		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
322	wantarray ? @res : $res[0]	440	wantarray ? @res : $res[0]
323	} else {	441	} else {
324	# we are in another coroutine, how wonderful, everything just works	442	# we are in another coroutine, how wonderful, everything just works
325		443
326	$job->()	444	$job->()
…		…
345	$EXT_CORO{$coro+0} = $coro;	463	$EXT_CORO{$coro+0} = $coro;
346		464
347	$coro	465	$coro
348	}	466	}
349		467
350	sub write_runtime {	468	=item fork_call { }, $args
351	my $runtime = cf::localdir . "/runtime";
352		469
353	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	470	Executes the given code block with the given arguments in a seperate
354	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.
355		474
356	my $value = $cf::RUNTIME + 90 + 10;	475	=cut
357	# 10 is the runtime save interval, for a monotonic clock
358	# 60 allows for the watchdog to kill the server.
359		476
360	(aio_write $fh, 0, (length $value), $value, 0) <= 0	477	sub _store_scalar {
361	and return;	478	open my $fh, ">", \my $buf
362		479	or die "fork_call: cannot open fh-to-buf in child : $!";
363	aio_fsync $fh	480	Storable::store_fd $_[0], $fh;
364	and return;
365
366	close $fh	481	close $fh;
367	or return;
368		482
369	aio_rename "$runtime~", $runtime	483	$buf
370	and return;	484	}
371		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;
372	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 });
373	}	655	}
374		656
375	=back	657	=back
376		658
377	=cut	659	=cut
…		…
384	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")
385	to it. All such attachable objects support the following methods.	667	to it. All such attachable objects support the following methods.
386		668
387	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>
388	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
389	crossfire+).	671	Crossfire TRT).
390		672
391	=over 4	673	=over 4
392		674
393	=item $attachable->attach ($attachment, key => $value...)	675	=item $attachable->attach ($attachment, key => $value...)
394		676
…		…
557	$registry = $CB_TYPE[$object_type] ||= [];	839	$registry = $CB_TYPE[$object_type] ||= [];
558		840
559	} elsif ($type eq "subtype") {	841	} elsif ($type eq "subtype") {
560	defined $object_type or Carp::croak "subtype specified without type";	842	defined $object_type or Carp::croak "subtype specified without type";
561	my $object_subtype = shift @arg;	843	my $object_subtype = shift @arg;
562	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	844	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
563		845
564	} elsif ($type eq "package") {	846	} elsif ($type eq "package") {
565	my $pkg = shift @arg;	847	my $pkg = shift @arg;
566		848
567	while (my ($name, $id) = each %cb_id) {	849	while (my ($name, $id) = each %cb_id) {
…		…
596	_attach $registry, $klass, @attach;	878	_attach $registry, $klass, @attach;
597	}	879	}
598		880
599	$obj->{$name} = \%arg;	881	$obj->{$name} = \%arg;
600	} else {	882	} else {
601	warn "object uses attachment '$name' that is not available, postponing.\n";	883	warn "object uses attachment '$name' which is not available, postponing.\n";
602	}	884	}
603		885
604	$obj->{_attachment}{$name} = undef;	886	$obj->{_attachment}{$name} = undef;
605	}	887	}
606		888
…		…
608	if (ref $_[0]) {	890	if (ref $_[0]) {
609	_object_attach @_;	891	_object_attach @_;
610	} else {	892	} else {
611	_attach shift->_attach_registry, @_;	893	_attach shift->_attach_registry, @_;
612	}	894	}
		895	_recalc_want;
613	};	896	};
614		897
615	# all those should be optimised	898	# all those should be optimised
616	sub cf::attachable::detach {	899	sub cf::attachable::detach {
617	my ($obj, $name) = @_;	900	my ($obj, $name) = @_;
…		…
620	delete $obj->{_attachment}{$name};	903	delete $obj->{_attachment}{$name};
621	reattach ($obj);	904	reattach ($obj);
622	} else {	905	} else {
623	Carp::croak "cannot, currently, detach class attachments";	906	Carp::croak "cannot, currently, detach class attachments";
624	}	907	}
		908	_recalc_want;
625	};	909	};
626		910
627	sub cf::attachable::attached {	911	sub cf::attachable::attached {
628	my ($obj, $name) = @_;	912	my ($obj, $name) = @_;
629		913
…		…
644	";	928	";
645	die if $@;	929	die if $@;
646	}	930	}
647		931
648	our $override;	932	our $override;
649	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?
650		934
651	sub override {	935	sub override {
652	$override = 1;	936	$override = 1;
653	@invoke_results = ();	937	@INVOKE_RESULTS = (@_);
654	}	938	}
655		939
656	sub do_invoke {	940	sub do_invoke {
657	my $event = shift;	941	my $event = shift;
658	my $callbacks = shift;	942	my $callbacks = shift;
659		943
660	@invoke_results = ();	944	@INVOKE_RESULTS = ();
661		945
662	local $override;	946	local $override;
663		947
664	for (@$callbacks) {	948	for (@$callbacks) {
665	eval { &{$_->[1]} };	949	eval { &{$_->[1]} };
…		…
682		966
683	Generate an object-specific event with the given arguments.	967	Generate an object-specific event with the given arguments.
684		968
685	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	969	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
686	removed in future versions), and there is no public API to access override	970	removed in future versions), and there is no public API to access override
687	results (if you must, access C<@cf::invoke_results> directly).	971	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
688		972
689	=back	973	=back
690		974
691	=cut	975	=cut
692		976
693	#############################################################################	977	#############################################################################
694	# object support	978	# object support
		979	#
		980
		981	sub _can_merge {
		982	my ($ob1, $ob2) = @_;
		983
		984	local $Storable::canonical = 1;
		985	my $fob1 = Storable::freeze $ob1;
		986	my $fob2 = Storable::freeze $ob2;
		987
		988	$fob1 eq $fob2
		989	}
695		990
696	sub reattach {	991	sub reattach {
697	# basically do the same as instantiate, without calling instantiate	992	# basically do the same as instantiate, without calling instantiate
698	my ($obj) = @_;	993	my ($obj) = @_;
699		994
…		…
752	$filename, length $$rdata, scalar @$objs;	1047	$filename, length $$rdata, scalar @$objs;
753		1048
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1051	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
757	aio_fsync $fh;	1052	aio_fsync $fh if $cf::USE_FSYNC;
758	close $fh;	1053	close $fh;
759		1054
760	if (@$objs) {	1055	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1056	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1057	chmod SAVE_MODE, $fh;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1058	my $data = Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1059	aio_write $fh, 0, (length $data), $data, 0;
765	aio_fsync $fh;	1060	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1061	close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1062	aio_rename "$filename.pst~", "$filename.pst";
768	}	1063	}
769	} else {	1064	} else {
770	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
…		…
802	or return;	1097	or return;
803	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
804	}	1099	}
805		1100
806	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
807	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
808	return ($data, $av);	1103	return ($data, $av);
809	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
810		1111
811	#############################################################################	1112	#############################################################################
812	# command handling &c	1113	# command handling &c
813		1114
814	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
827	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
828	}	1129	}
829		1130
830	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
831		1132
832	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.
833		1138
834	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
835	called.	1140	called.
836		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
837	=cut	1153	=cut
838		1154
839	sub register_extcmd {	1155	sub register_extcmd {
840	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
841		1157
842	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
843	}	1165	}
844		1166
845	cf::player->attach (	1167	cf::player->attach (
846	on_command => sub {	1168	on_command => sub {
847	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
856	cf::override;	1178	cf::override;
857	},	1179	},
858	on_extcmd => sub {	1180	on_extcmd => sub {
859	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
860		1182
861	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
862		1184
863	if (ref $msg) {	1185	if (ref $msg) {
		1186	my ($type, $reply, @payload) =
		1187	"ARRAY" eq ref $msg
		1188	? @$msg
		1189	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1190
864	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
865	if (my %reply = $cb->($pl, $msg)) {	1192	my @reply = $cb->($pl, @payload);
		1193
866	$pl->ext_reply ($msg->{msgid}, %reply);	1194	$pl->ext_reply ($reply, @reply)
867	}	1195	if $reply;
868	}	1196	}
869	} else {	1197	} else {
870	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
871	}	1199	}
872		1200
873	cf::override;	1201	cf::override;
874	},	1202	},
875	);	1203	);
876		1204
877	sub load_extension {
878	my ($path) = @_;
879
880	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
881	my $base = $1;
882	my $pkg = $1;
883	$pkg =~ s/[^[:word:]]/_/g;
884	$pkg = "ext::$pkg";
885
886	warn "... loading '$path' into '$pkg'\n";
887
888	open my $fh, "<:utf8", $path
889	or die "$path: $!";
890
891	my $source =
892	"package $pkg; use strict; use utf8;\n"
893	. "#line 1 \"$path\"\n{\n"
894	. (do { local $/; <$fh> })
895	. "\n};\n1";
896
897	unless (eval $source) {
898	my $msg = $@ ? "$path: $@\n"
899	: "extension disabled.\n";
900	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
901	warn $@;
902	warn "mandatory extension failed to load, exiting.\n";
903	exit 1;
904	}
905	die $@;
906	}
907
908	push @EXTS, $pkg;
909	}
910
911	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
912	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
913	next unless -r $ext;	1210	next unless -r $path;
914	eval {	1211
915	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
916	1	1269	}
917	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
918	}	1275	};
919	}	1276	}
920		1277
921	#############################################################################	1278	#############################################################################
922		1279
		1280	=back
		1281
923	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
924		1283
925	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
926		1285
927	=cut	1286	=cut
…		…
939	Returns the given player object, loading it if necessary (might block).	1298	Returns the given player object, loading it if necessary (might block).
940		1299
941	=cut	1300	=cut
942		1301
943	sub playerdir($) {	1302	sub playerdir($) {
944	cf::localdir	1303	"$PLAYERDIR/"
945	. "/"
946	. cf::playerdir
947	. "/"
948	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1304	. (ref $_[0] ? $_[0]->ob->name : $_[0])
949	}	1305	}
950		1306
951	sub path($) {	1307	sub path($) {
952	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1308	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
953		1309
954	(playerdir $login) . "/$login.pl"	1310	(playerdir $login) . "/playerdata"
955	}	1311	}
956		1312
957	sub find_active($) {	1313	sub find_active($) {
958	$cf::PLAYER{$_[0]}	1314	$cf::PLAYER{$_[0]}
959	and $cf::PLAYER{$_[0]}->active	1315	and $cf::PLAYER{$_[0]}->active
…		…
972	my $login = $_[0];	1328	my $login = $_[0];
973		1329
974	my $guard = cf::lock_acquire "user_find:$login";	1330	my $guard = cf::lock_acquire "user_find:$login";
975		1331
976	$cf::PLAYER{$_[0]} || do {	1332	$cf::PLAYER{$_[0]} || do {
		1333	# rename old playerfiles to new ones
		1334	#TODO: remove when no longer required
		1335	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1336	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1337	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1338	aio_unlink +(playerdir $login) . "/$login.pl";
		1339
977	my $pl = load_pl path $login	1340	my $pl = load_pl path $login
978	or return;	1341	or return;
979	$cf::PLAYER{$login} = $pl	1342	$cf::PLAYER{$login} = $pl
980	}	1343	}
981	}	1344	}
…		…
1018		1381
1019	=cut	1382	=cut
1020		1383
1021	sub quit_character {	1384	sub quit_character {
1022	my ($pl) = @_;	1385	my ($pl) = @_;
		1386
		1387	my $name = $pl->ob->name;
1023		1388
1024	$pl->{deny_save} = 1;	1389	$pl->{deny_save} = 1;
1025	$pl->password ("*"); # this should lock out the player until we nuked the dir	1390	$pl->password ("*"); # this should lock out the player until we nuked the dir
1026		1391
1027	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1392	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1032	my $path = playerdir $pl;	1397	my $path = playerdir $pl;
1033	my $temp = "$path~$cf::RUNTIME~deleting~";	1398	my $temp = "$path~$cf::RUNTIME~deleting~";
1034	aio_rename $path, $temp;	1399	aio_rename $path, $temp;
1035	delete $cf::PLAYER{$pl->ob->name};	1400	delete $cf::PLAYER{$pl->ob->name};
1036	$pl->destroy;	1401	$pl->destroy;
		1402
		1403	my $prefix = qr<^~\Q$name\E/>;
		1404
		1405	# nuke player maps
		1406	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1407
1037	IO::AIO::aio_rmtree $temp;	1408	IO::AIO::aio_rmtree $temp;
		1409	}
		1410
		1411	=item $pl->kick
		1412
		1413	Kicks a player out of the game. This destroys the connection.
		1414
		1415	=cut
		1416
		1417	sub kick {
		1418	my ($pl, $kicker) = @_;
		1419
		1420	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1421	$pl->killer ("kicked");
		1422	$pl->ns->destroy;
1038	}	1423	}
1039		1424
1040	=item cf::player::list_logins	1425	=item cf::player::list_logins
1041		1426
1042	Returns am arrayref of all valid playernames in the system, can take a	1427	Returns am arrayref of all valid playernames in the system, can take a
1043	while and may block, so not sync_job-capable, ever.	1428	while and may block, so not sync_job-capable, ever.
1044		1429
1045	=cut	1430	=cut
1046		1431
1047	sub list_logins {	1432	sub list_logins {
1048	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1433	my $dirs = aio_readdir $PLAYERDIR
1049	or return [];	1434	or return [];
1050		1435
1051	my @logins;	1436	my @logins;
1052		1437
1053	for my $login (@$dirs) {	1438	for my $login (@$dirs) {
…		…
1070	=cut	1455	=cut
1071		1456
1072	sub maps($) {	1457	sub maps($) {
1073	my ($pl) = @_;	1458	my ($pl) = @_;
1074		1459
		1460	$pl = ref $pl ? $pl->ob->name : $pl;
		1461
1075	my $files = aio_readdir playerdir $pl	1462	my $files = aio_readdir playerdir $pl
1076	or return;	1463	or return;
1077		1464
1078	my @paths;	1465	my @paths;
1079		1466
1080	for (@$files) {	1467	for (@$files) {
1081	utf8::decode $_;	1468	utf8::decode $_;
1082	next if /\.(?:pl|pst)$/;	1469	next if /\.(?:pl|pst)$/;
1083	next unless /^$PATH_SEP/o;	1470	next unless /^$PATH_SEP/o;
1084		1471
1085	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1472	push @paths, cf::map::normalise "~$pl/$_";
1086	}	1473	}
1087		1474
1088	\@paths	1475	\@paths
1089	}	1476	}
1090		1477
		1478	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1479
		1480	Expand crossfire pod fragments into protocol xml.
		1481
		1482	=cut
		1483
		1484	sub expand_cfpod {
		1485	((my $self), (local $_)) = @_;
		1486
		1487	# escape & and <
		1488	s/&/&amp;/g;
		1489	s/(?<![BIUGH])</&lt;/g;
		1490
		1491	# this is buggy, it needs to properly take care of nested <'s
		1492
		1493	1 while
		1494	# replace B<>, I<>, U<> etc.
		1495	s/B<([^\>]*)>/<b>$1<\/b>/
		1496	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1497	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1498	# replace G<male|female> tags
		1499	|| s{G<([^>|]*)\|([^>]*)>}{
		1500	$self->gender ? $2 : $1
		1501	}ge
		1502	# replace H<hint text>
		1503	|| s{H<([^\>]*)>}
		1504	{
		1505	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1506	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1507	"")
		1508	[$self->{hintmode}]
		1509	}ge;
		1510
		1511	# create single paragraphs (very hackish)
		1512	s/(?<=\S)\n(?=\w)/ /g;
		1513
		1514	# compress some whitespace
		1515	s/\s+\n/\n/g; # ws line-ends
		1516	s/\n\n+/\n/g; # double lines
		1517	s/^\n+//; # beginning lines
		1518	s/\n+$//; # ending lines
		1519
		1520	$_
		1521	}
		1522
		1523	sub hintmode {
		1524	$_[0]{hintmode} = $_[1] if @_ > 1;
		1525	$_[0]{hintmode}
		1526	}
		1527
1091	=item $player->ext_reply ($msgid, $msgtype, %msg)	1528	=item $player->ext_reply ($msgid, @msg)
1092		1529
1093	Sends an ext reply to the player.	1530	Sends an ext reply to the player.
1094		1531
1095	=cut	1532	=cut
1096		1533
1097	sub ext_reply($$$%) {	1534	sub ext_reply($$@) {
1098	my ($self, $id, %msg) = @_;	1535	my ($self, $id, @msg) = @_;
1099		1536
1100	$msg{msgid} = $id;	1537	if ($self->ns->extcmd == 2) {
1101		1538	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
1102	$self->send ("ext " . cf::to_json \%msg);	1539	} elsif ($self->ns->extcmd == 1) {
		1540	#TODO: version 1, remove
		1541	unshift @msg, msgtype => "reply", msgid => $id;
		1542	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1543	}
1103	}	1544	}
1104		1545
1105	package cf;	1546	=item $player->ext_msg ($type, @msg)
		1547
		1548	Sends an ext event to the client.
		1549
		1550	=cut
		1551
		1552	sub ext_msg($$@) {
		1553	my ($self, $type, @msg) = @_;
		1554
		1555	$self->ns->ext_msg ($type, @msg);
		1556	}
		1557
		1558	=head3 cf::region
		1559
		1560	=over 4
		1561
		1562	=cut
		1563
		1564	package cf::region;
		1565
		1566	=item cf::region::find_by_path $path
		1567
		1568	Tries to decuce the likely region for a map knowing only its path.
		1569
		1570	=cut
		1571
		1572	sub find_by_path($) {
		1573	my ($path) = @_;
		1574
		1575	my ($match, $specificity);
		1576
		1577	for my $region (list) {
		1578	if ($region->{match} && $path =~ $region->{match}) {
		1579	($match, $specificity) = ($region, $region->specificity)
		1580	if $region->specificity > $specificity;
		1581	}
		1582	}
		1583
		1584	$match
		1585	}
1106		1586
1107	=back	1587	=back
1108
1109		1588
1110	=head3 cf::map	1589	=head3 cf::map
1111		1590
1112	=over 4	1591	=over 4
1113		1592
…		…
1168	my ($self, $merge) = @_;	1647	my ($self, $merge) = @_;
1169		1648
1170	# we have to keep some variables in memory intact	1649	# we have to keep some variables in memory intact
1171	local $self->{path};	1650	local $self->{path};
1172	local $self->{load_path};	1651	local $self->{load_path};
1173	local $self->{deny_save};
1174	local $self->{deny_reset};
1175		1652
1176	$self->SUPER::thawer_merge ($merge);	1653	$self->SUPER::thawer_merge ($merge);
1177	}	1654	}
1178		1655
1179	sub normalise {	1656	sub normalise {
…		…
1226	$self->init; # pass $1 etc.	1703	$self->init; # pass $1 etc.
1227	return $self;	1704	return $self;
1228	}	1705	}
1229	}	1706	}
1230		1707
1231	Carp::carp "unable to resolve path '$path' (base '$base').";	1708	Carp::cluck "unable to resolve path '$path' (base '$base').";
1232	()	1709	()
1233	}	1710	}
1234		1711
1235	sub init {	1712	sub init {
1236	my ($self) = @_;	1713	my ($self) = @_;
…		…
1251		1728
1252	# the original (read-only) location	1729	# the original (read-only) location
1253	sub load_path {	1730	sub load_path {
1254	my ($self) = @_;	1731	my ($self) = @_;
1255		1732
1256	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1733	"$MAPDIR/$self->{path}.map"
1257	}	1734	}
1258		1735
1259	# the temporary/swap location	1736	# the temporary/swap location
1260	sub save_path {	1737	sub save_path {
1261	my ($self) = @_;	1738	my ($self) = @_;
1262		1739
1263	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1740	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1264	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1741	"$TMPDIR/$path.map"
1265	}	1742	}
1266		1743
1267	# the unique path, undef == no special unique path	1744	# the unique path, undef == no special unique path
1268	sub uniq_path {	1745	sub uniq_path {
1269	my ($self) = @_;	1746	my ($self) = @_;
1270		1747
1271	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1748	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1272	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1749	"$UNIQUEDIR/$path"
1273	}	1750	}
1274		1751
1275	# and all this just because we cannot iterate over	1752	# and all this just because we cannot iterate over
1276	# all maps in C++...	1753	# all maps in C++...
1277	sub change_all_map_light {	1754	sub change_all_map_light {
…		…
1279		1756
1280	$_->change_map_light ($change)	1757	$_->change_map_light ($change)
1281	for grep $_->outdoor, values %cf::MAP;	1758	for grep $_->outdoor, values %cf::MAP;
1282	}	1759	}
1283		1760
		1761	sub decay_objects {
		1762	my ($self) = @_;
		1763
		1764	return if $self->{deny_reset};
		1765
		1766	$self->do_decay_objects;
		1767	}
		1768
1284	sub unlink_save {	1769	sub unlink_save {
1285	my ($self) = @_;	1770	my ($self) = @_;
1286		1771
1287	utf8::encode (my $save = $self->save_path);	1772	utf8::encode (my $save = $self->save_path);
1288	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1773	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1291		1776
1292	sub load_header_from($) {	1777	sub load_header_from($) {
1293	my ($self, $path) = @_;	1778	my ($self, $path) = @_;
1294		1779
1295	utf8::encode $path;	1780	utf8::encode $path;
1296	aio_open $path, O_RDONLY, 0	1781	#aio_open $path, O_RDONLY, 0
1297	or return;	1782	# or return;
1298		1783
1299	$self->_load_header ($path)	1784	$self->_load_header ($path)
1300	or return;	1785	or return;
1301		1786
1302	$self->{load_path} = $path;	1787	$self->{load_path} = $path;
…		…
1344	$self->load_header_orig	1829	$self->load_header_orig
1345	or return;	1830	or return;
1346	$self->prepare_orig;	1831	$self->prepare_orig;
1347	}	1832	}
1348		1833
		1834	$self->{deny_reset} = 1
		1835	if $self->no_reset;
		1836
		1837	$self->default_region (cf::region::find_by_path $self->{path})
		1838	unless $self->default_region;
		1839
1349	1	1840	1
1350	}	1841	}
1351		1842
1352	sub find;	1843	sub find;
1353	sub find {	1844	sub find {
…		…
1365	$map->{last_save} = $cf::RUNTIME;	1856	$map->{last_save} = $cf::RUNTIME;
1366		1857
1367	$map->load_header	1858	$map->load_header
1368	or return;	1859	or return;
1369		1860
1370	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1861	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1371	# doing this can freeze the server in a sync job, obviously	1862	# doing this can freeze the server in a sync job, obviously
1372	#$cf::WAIT_FOR_TICK->wait;	1863	#$cf::WAIT_FOR_TICK->wait;
1373	$map->reset;	1864	$map->reset;
1374	undef $guard;	1865	undef $guard;
1375	return find $path;	1866	return find $path;
…		…
1386	my ($self) = @_;	1877	my ($self) = @_;
1387		1878
1388	local $self->{deny_reset} = 1; # loading can take a long time	1879	local $self->{deny_reset} = 1; # loading can take a long time
1389		1880
1390	my $path = $self->{path};	1881	my $path = $self->{path};
		1882
		1883	{
1391	my $guard = cf::lock_acquire "map_load:$path";	1884	my $guard = cf::lock_acquire "map_load:$path";
1392		1885
1393	return if $self->in_memory != cf::MAP_SWAPPED;	1886	return if $self->in_memory != cf::MAP_SWAPPED;
1394		1887
1395	$self->in_memory (cf::MAP_LOADING);	1888	$self->in_memory (cf::MAP_LOADING);
1396		1889
1397	$self->alloc;	1890	$self->alloc;
1398		1891
1399	$self->pre_load;	1892	$self->pre_load;
1400
1401	$self->_load_objects ($self->{load_path}, 1)
1402	or return;
1403
1404	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1405	if delete $self->{load_original};
1406
1407	if (my $uniq = $self->uniq_path) {
1408	utf8::encode $uniq;
1409	if (aio_open $uniq, O_RDONLY, 0) {
1410	$self->clear_unique_items;
1411	$self->_load_objects ($uniq, 0);
1412	}
1413	}
1414
1415	Coro::cede;
1416
1417	# now do the right thing for maps
1418	$self->link_multipart_objects;
1419
1420	unless ($self->{deny_activate}) {
1421	$self->decay_objects;
1422	$self->fix_auto_apply;
1423	$self->update_buttons;
1424	Coro::cede;	1893	Coro::cede;
1425	$self->set_darkness_map;	1894
		1895	$self->_load_objects ($self->{load_path}, 1)
		1896	or return;
		1897
		1898	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1899	if delete $self->{load_original};
		1900
		1901	if (my $uniq = $self->uniq_path) {
		1902	utf8::encode $uniq;
		1903	if (aio_open $uniq, O_RDONLY, 0) {
		1904	$self->clear_unique_items;
		1905	$self->_load_objects ($uniq, 0);
		1906	}
		1907	}
		1908
		1909	Coro::cede;
		1910	# now do the right thing for maps
		1911	$self->link_multipart_objects;
1426	$self->difficulty ($self->estimate_difficulty)	1912	$self->difficulty ($self->estimate_difficulty)
1427	unless $self->difficulty;	1913	unless $self->difficulty;
1428	Coro::cede;	1914	Coro::cede;
		1915
		1916	unless ($self->{deny_activate}) {
		1917	$self->decay_objects;
		1918	$self->fix_auto_apply;
		1919	$self->update_buttons;
		1920	Coro::cede;
		1921	$self->set_darkness_map;
		1922	Coro::cede;
1429	$self->activate;	1923	$self->activate;
		1924	}
		1925
		1926	$self->{last_save} = $cf::RUNTIME;
		1927	$self->last_access ($cf::RUNTIME);
		1928
		1929	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	1930	}
1431		1931
1432	$self->post_load;	1932	$self->post_load;
1433
1434	$self->in_memory (cf::MAP_IN_MEMORY);
1435	}	1933	}
1436		1934
1437	sub customise_for {	1935	sub customise_for {
1438	my ($self, $ob) = @_;	1936	my ($self, $ob) = @_;
1439		1937
1440	return find "~" . $ob->name . "/" . $self->{path}	1938	return find "~" . $ob->name . "/" . $self->{path}
1441	if $self->per_player;	1939	if $self->per_player;
		1940
		1941	# return find "?party/" . $ob->name . "/" . $self->{path}
		1942	# if $self->per_party;
1442		1943
1443	$self	1944	$self
1444	}	1945	}
1445		1946
1446	# find and load all maps in the 3x3 area around a map	1947	# find and load all maps in the 3x3 area around a map
…		…
1493		1994
1494	undef $MAP_PREFETCH{$path};	1995	undef $MAP_PREFETCH{$path};
1495	$MAP_PREFETCHER ||= cf::async {	1996	$MAP_PREFETCHER ||= cf::async {
1496	while (%MAP_PREFETCH) {	1997	while (%MAP_PREFETCH) {
1497	for my $path (keys %MAP_PREFETCH) {	1998	for my $path (keys %MAP_PREFETCH) {
1498	my $map = find $path	1999	if (my $map = find $path) {
1499	or next;
1500	$map->load;	2000	$map->load;
		2001	}
1501		2002
1502	delete $MAP_PREFETCH{$path};	2003	delete $MAP_PREFETCH{$path};
1503	}	2004	}
1504	}	2005	}
1505	undef $MAP_PREFETCHER;	2006	undef $MAP_PREFETCHER;
…		…
1557		2058
1558	sub reset_at {	2059	sub reset_at {
1559	my ($self) = @_;	2060	my ($self) = @_;
1560		2061
1561	# TODO: safety, remove and allow resettable per-player maps	2062	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->isa ("ext::map_per_player");#d#
1563	return 1e99 if $self->{deny_reset};	2063	return 1e99 if $self->{deny_reset};
1564		2064
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2065	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2066	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2067
…		…
1578	my ($self) = @_;	2078	my ($self) = @_;
1579		2079
1580	my $lock = cf::lock_acquire "map_data:$self->{path}";	2080	my $lock = cf::lock_acquire "map_data:$self->{path}";
1581		2081
1582	return if $self->players;	2082	return if $self->players;
1583	return if $self->isa ("ext::map_per_player");#d#
1584		2083
1585	warn "resetting map ", $self->path;#d#	2084	warn "resetting map ", $self->path;
		2085
		2086	$self->in_memory (cf::MAP_SWAPPED);
		2087
		2088	# need to save uniques path
		2089	unless ($self->{deny_save}) {
		2090	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2091
		2092	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2093	if $uniq;
		2094	}
1586		2095
1587	delete $cf::MAP{$self->path};	2096	delete $cf::MAP{$self->path};
1588		2097
1589	$self->in_memory (cf::MAP_SWAPPED);
1590	$self->clear;	2098	$self->clear;
1591		2099
1592	$_->clear_links_to ($self) for values %cf::MAP;	2100	$_->clear_links_to ($self) for values %cf::MAP;
1593		2101
1594	$self->unlink_save;	2102	$self->unlink_save;
…		…
1613	$cf::MAP{$self->path} = $self;	2121	$cf::MAP{$self->path} = $self;
1614		2122
1615	$self->reset; # polite request, might not happen	2123	$self->reset; # polite request, might not happen
1616	}	2124	}
1617		2125
		2126	=item $maps = cf::map::tmp_maps
		2127
		2128	Returns an arrayref with all map paths of currently instantiated and saved
		2129	maps. May block.
		2130
		2131	=cut
		2132
		2133	sub tmp_maps() {
		2134	[
		2135	map {
		2136	utf8::decode $_;
		2137	/\.map$/
		2138	? normalise $_
		2139	: ()
		2140	} @{ aio_readdir $TMPDIR or [] }
		2141	]
		2142	}
		2143
		2144	=item $maps = cf::map::random_maps
		2145
		2146	Returns an arrayref with all map paths of currently instantiated and saved
		2147	random maps. May block.
		2148
		2149	=cut
		2150
		2151	sub random_maps() {
		2152	[
		2153	map {
		2154	utf8::decode $_;
		2155	/\.map$/
		2156	? normalise "?random/$_"
		2157	: ()
		2158	} @{ aio_readdir $RANDOMDIR or [] }
		2159	]
		2160	}
		2161
1618	=item cf::map::unique_maps	2162	=item cf::map::unique_maps
1619		2163
1620	Returns an arrayref of paths of all shared maps that have	2164	Returns an arrayref of paths of all shared maps that have
1621	instantiated unique items. May block.	2165	instantiated unique items. May block.
1622		2166
1623	=cut	2167	=cut
1624		2168
1625	sub unique_maps() {	2169	sub unique_maps() {
1626	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2170	[
1627	or return;	2171	map {
1628
1629	my @paths;
1630
1631	for (@$files) {
1632	utf8::decode $_;	2172	utf8::decode $_;
1633	next if /\.pst$/;	2173	/\.map$/
1634	next unless /^$PATH_SEP/o;	2174	? normalise $_
1635		2175	: ()
1636	push @paths, cf::map::normalise $_;	2176	} @{ aio_readdir $UNIQUEDIR or [] }
1637	}	2177	]
1638
1639	\@paths
1640	}	2178	}
1641		2179
1642	package cf;	2180	package cf;
1643		2181
1644	=back	2182	=back
…		…
1690		2228
1691	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2229	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1692		2230
1693	if ($self->{record_replies}) {	2231	if ($self->{record_replies}) {
1694	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2232	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2233
1695	} else {	2234	} else {
		2235	my $pl = $self->contr;
		2236
		2237	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2238	my $dialog = $pl->{npc_dialog};
		2239	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2240
		2241	} else {
1696	$msg = $npc->name . " says: $msg" if $npc;	2242	$msg = $npc->name . " says: $msg" if $npc;
1697	$self->message ($msg, $flags);	2243	$self->message ($msg, $flags);
		2244	}
1698	}	2245	}
1699	}	2246	}
1700		2247
1701	=item $player_object->may ("access")	2248	=item $player_object->may ("access")
1702		2249
…		…
1750	$self->deactivate_recursive;	2297	$self->deactivate_recursive;
1751		2298
1752	return if UNIVERSAL::isa $self->map, "ext::map_link";	2299	return if UNIVERSAL::isa $self->map, "ext::map_link";
1753		2300
1754	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2301	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1755	if $self->map;	2302	if $self->map && $self->map->{path} ne "{link}";
1756		2303
1757	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2304	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1758	}	2305	}
1759		2306
1760	sub cf::object::player::leave_link {	2307	sub cf::object::player::leave_link {
1761	my ($self, $map, $x, $y) = @_;	2308	my ($self, $map, $x, $y) = @_;
		2309
		2310	return unless $self->contr->active;
1762		2311
1763	my $link_pos = delete $self->{_link_pos};	2312	my $link_pos = delete $self->{_link_pos};
1764		2313
1765	unless ($map) {	2314	unless ($map) {
1766	# restore original map position	2315	# restore original map position
…		…
1784	$map->load;	2333	$map->load;
1785	$map->load_diag;	2334	$map->load_diag;
1786		2335
1787	return unless $self->contr->active;	2336	return unless $self->contr->active;
1788	$self->activate_recursive;	2337	$self->activate_recursive;
		2338
		2339	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1789	$self->enter_map ($map, $x, $y);	2340	$self->enter_map ($map, $x, $y);
1790	}	2341	}
1791		2342
1792	cf::player->attach (	2343	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1793	on_logout => sub {
1794	my ($pl) = @_;
1795		2344
1796	# abort map switching before logout	2345	Moves the player to the given map-path and coordinates by first freezing
1797	if ($pl->ob->{_link_pos}) {	2346	her, loading and preparing them map, calling the provided $check callback
1798	cf::sync_job {	2347	that has to return the map if sucecssful, and then unfreezes the player on
1799	$pl->ob->leave_link	2348	the new (success) or old (failed) map position. In either case, $done will
1800	};	2349	be called at the end of this process.
1801	}
1802	},
1803	on_login => sub {
1804	my ($pl) = @_;
1805		2350
1806	# try to abort aborted map switching on player login :)
1807	# should happen only on crashes
1808	if ($pl->ob->{_link_pos}) {
1809	$pl->ob->enter_link;
1810	(async {
1811	# we need this sleep as the login has a concurrent enter_exit running
1812	# and this sleep increases chances of the player not ending up in scorn
1813	$pl->ob->reply (undef,
1814	"There was an internal problem at your last logout, "
1815	. "the server will try to bring you to your intended destination in a second.",
1816	cf::NDI_RED);
1817	Coro::Timer::sleep 1;
1818	$pl->ob->leave_link;
1819	})->prio (2);
1820	}
1821	},
1822	);
1823
1824	=item $player_object->goto ($path, $x, $y)
1825
1826	=cut	2351	=cut
		2352
		2353	our $GOTOGEN;
1827		2354
1828	sub cf::object::player::goto {	2355	sub cf::object::player::goto {
1829	my ($self, $path, $x, $y) = @_;	2356	my ($self, $path, $x, $y, $check, $done) = @_;
		2357
		2358	# do generation counting so two concurrent goto's will be executed in-order
		2359	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1830		2360
1831	$self->enter_link;	2361	$self->enter_link;
1832		2362
1833	(async {	2363	(async {
1834	my $map = eval {	2364	my $map = eval {
1835	my $map = cf::map::find $path;	2365	my $map = cf::map::find $path;
		2366
		2367	if ($map) {
1836	$map = $map->customise_for ($self) if $map;	2368	$map = $map->customise_for ($self);
		2369	$map = $check->($map) if $check && $map;
		2370	} else {
		2371	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2372	}
		2373
1837	$map	2374	$map
		2375	};
		2376
		2377	if ($@) {
		2378	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2379	LOG llevError | logBacktrace, Carp::longmess $@;
1838	} or	2380	}
1839	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1840		2381
		2382	if ($gen == $self->{_goto_generation}) {
		2383	delete $self->{_goto_generation};
1841	$self->leave_link ($map, $x, $y);	2384	$self->leave_link ($map, $x, $y);
		2385	}
		2386
		2387	$done->() if $done;
1842	})->prio (1);	2388	})->prio (1);
1843	}	2389	}
1844		2390
1845	=item $player_object->enter_exit ($exit_object)	2391	=item $player_object->enter_exit ($exit_object)
1846		2392
…		…
1885		2431
1886	$rmp->{random_seed} ||= $exit->random_seed;	2432	$rmp->{random_seed} ||= $exit->random_seed;
1887		2433
1888	my $data = cf::to_json $rmp;	2434	my $data = cf::to_json $rmp;
1889	my $md5 = Digest::MD5::md5_hex $data;	2435	my $md5 = Digest::MD5::md5_hex $data;
1890	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2436	my $meta = "$RANDOMDIR/$md5.meta";
1891		2437
1892	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2438	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1893	aio_write $fh, 0, (length $data), $data, 0;	2439	aio_write $fh, 0, (length $data), $data, 0;
1894	undef $fh;	2440	undef $fh;
1895	aio_rename "$meta~", $meta;	2441	aio_rename "$meta~", $meta;
…		…
1904		2450
1905	return unless $self->type == cf::PLAYER;	2451	return unless $self->type == cf::PLAYER;
1906		2452
1907	if ($exit->slaying eq "/!") {	2453	if ($exit->slaying eq "/!") {
1908	#TODO: this should de-fi-ni-te-ly not be a sync-job	2454	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2455	# the problem is that $exit might not survive long enough
		2456	# so it needs to be done right now, right here
1909	cf::sync_job { prepare_random_map $exit };	2457	cf::sync_job { prepare_random_map $exit };
1910	}	2458	}
1911		2459
1912	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2460	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	my $hp = $exit->stats->hp;	2461	my $hp = $exit->stats->hp;
1914	my $sp = $exit->stats->sp;	2462	my $sp = $exit->stats->sp;
1915		2463
1916	$self->enter_link;	2464	$self->enter_link;
		2465
		2466	# if exit is damned, update players death & WoR home-position
		2467	$self->contr->savebed ($slaying, $hp, $sp)
		2468	if $exit->flag (FLAG_DAMNED);
1917		2469
1918	(async {	2470	(async {
1919	$self->deactivate_recursive; # just to be sure	2471	$self->deactivate_recursive; # just to be sure
1920	unless (eval {	2472	unless (eval {
1921	$self->goto ($slaying, $hp, $sp);	2473	$self->goto ($slaying, $hp, $sp);
1922		2474
1923	1;	2475	1;
1924	}) {	2476	}) {
1925	$self->message ("Something went wrong deep within the crossfire server. "	2477	$self->message ("Something went wrong deep within the crossfire server. "
1926	. "I'll try to bring you back to the map you were before. "	2478	. "I'll try to bring you back to the map you were before. "
1927	. "Please report this to the dungeon master!",	2479	. "Please report this to the dungeon master!",
1928	cf::NDI_UNIQUE | cf::NDI_RED);	2480	cf::NDI_UNIQUE | cf::NDI_RED);
1929		2481
1930	warn "ERROR in enter_exit: $@";	2482	warn "ERROR in enter_exit: $@";
1931	$self->leave_link;	2483	$self->leave_link;
1932	}	2484	}
1933	})->prio (1);	2485	})->prio (1);
…		…
1946		2498
1947	sub cf::client::send_drawinfo {	2499	sub cf::client::send_drawinfo {
1948	my ($self, $text, $flags) = @_;	2500	my ($self, $text, $flags) = @_;
1949		2501
1950	utf8::encode $text;	2502	utf8::encode $text;
1951	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2503	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1952	}	2504	}
1953		2505
		2506	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2507
		2508	Send a drawinfo or msg packet to the client, formatting the msg for the
		2509	client if neccessary. C<$type> should be a string identifying the type of
		2510	the message, with C<log> being the default. If C<$color> is negative, suppress
		2511	the message unless the client supports the msg packet.
		2512
		2513	=cut
		2514
		2515	sub cf::client::send_msg {
		2516	my ($self, $channel, $msg, $color, @extra) = @_;
		2517
		2518	$msg = $self->pl->expand_cfpod ($msg);
		2519
		2520	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2521
		2522	if (ref $channel) {
		2523	# send meta info to client, if not yet sent
		2524	unless (exists $self->{channel}{$channel->{id}}) {
		2525	$self->{channel}{$channel->{id}} = $channel;
		2526	$self->ext_msg (channel_info => $channel);
		2527	}
		2528
		2529	$channel = $channel->{id};
		2530	}
		2531
		2532	return unless @extra || length $msg;
		2533
		2534	if ($self->can_msg) {
		2535	# default colour, mask it out
		2536	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2537	if $color & cf::NDI_DEF;
		2538
		2539	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2540	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2541	} else {
		2542	if ($color >= 0) {
		2543	# replace some tags by gcfclient-compatible ones
		2544	for ($msg) {
		2545	1 while
		2546	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2547	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2548	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2549	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2550	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2551	}
		2552
		2553	$color &= cf::NDI_COLOR_MASK;
		2554
		2555	if (0 && $msg =~ /\[/) {
		2556	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2557	} else {
		2558	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2559	$self->send_packet ("drawinfo $color $msg")
		2560	}
		2561	}
		2562	}
		2563	}
		2564
		2565	=item $client->ext_msg ($type, @msg)
		2566
		2567	Sends an ext event to the client.
		2568
		2569	=cut
		2570
		2571	sub cf::client::ext_msg($$@) {
		2572	my ($self, $type, @msg) = @_;
		2573
		2574	my $extcmd = $self->extcmd;
		2575
		2576	if ($extcmd == 2) {
		2577	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2578	} elsif ($extcmd == 1) { # TODO: remove
		2579	push @msg, msgtype => "event_$type";
		2580	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2581	}
		2582	}
1954		2583
1955	=item $success = $client->query ($flags, "text", \&cb)	2584	=item $success = $client->query ($flags, "text", \&cb)
1956		2585
1957	Queues a query to the client, calling the given callback with	2586	Queues a query to the client, calling the given callback with
1958	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2587	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1959	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2588	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1960		2589
1961	Queries can fail, so check the return code. Or don't, as queries will become	2590	Queries can fail, so check the return code. Or don't, as queries will
1962	reliable at some point in the future.	2591	become reliable at some point in the future.
1963		2592
1964	=cut	2593	=cut
1965		2594
1966	sub cf::client::query {	2595	sub cf::client::query {
1967	my ($self, $flags, $text, $cb) = @_;	2596	my ($self, $flags, $text, $cb) = @_;
…		…
1975	utf8::encode $text;	2604	utf8::encode $text;
1976	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2605	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1977		2606
1978	$self->send_packet ($self->{query_queue}[0][0])	2607	$self->send_packet ($self->{query_queue}[0][0])
1979	if @{ $self->{query_queue} } == 1;	2608	if @{ $self->{query_queue} } == 1;
		2609
		2610	1
1980	}	2611	}
1981		2612
1982	cf::client->attach (	2613	cf::client->attach (
		2614	on_connect => sub {
		2615	my ($ns) = @_;
		2616
		2617	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2618	},
1983	on_reply => sub {	2619	on_reply => sub {
1984	my ($ns, $msg) = @_;	2620	my ($ns, $msg) = @_;
1985		2621
1986	# this weird shuffling is so that direct followup queries	2622	# this weird shuffling is so that direct followup queries
1987	# get handled first	2623	# get handled first
1988	my $queue = delete $ns->{query_queue}	2624	my $queue = delete $ns->{query_queue}
1989	or return; # be conservative, not sure how that can happen, but we saw a crash here	2625	or return; # be conservative, not sure how that can happen, but we saw a crash here
1990		2626
1991	(shift @$queue)->[1]->($msg);	2627	(shift @$queue)->[1]->($msg);
		2628	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1992		2629
1993	push @{ $ns->{query_queue} }, @$queue;	2630	push @{ $ns->{query_queue} }, @$queue;
1994		2631
1995	if (@{ $ns->{query_queue} } == @$queue) {	2632	if (@{ $ns->{query_queue} } == @$queue) {
1996	if (@$queue) {	2633	if (@$queue) {
…		…
1998	} else {	2635	} else {
1999	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2636	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2000	}	2637	}
2001	}	2638	}
2002	},	2639	},
		2640	on_exticmd => sub {
		2641	my ($ns, $buf) = @_;
		2642
		2643	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2644
		2645	if (ref $msg) {
		2646	my ($type, $reply, @payload) =
		2647	"ARRAY" eq ref $msg
		2648	? @$msg
		2649	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2650
		2651	if (my $cb = $EXTICMD{$type}) {
		2652	my @reply = $cb->($ns, @payload);
		2653
		2654	$ns->ext_reply ($reply, @reply)
		2655	if $reply;
		2656	}
		2657	} else {
		2658	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2659	}
		2660
		2661	cf::override;
		2662	},
2003	);	2663	);
2004		2664
2005	=item $client->async (\&cb)	2665	=item $client->async (\&cb)
2006		2666
2007	Create a new coroutine, running the specified callback. The coroutine will	2667	Create a new coroutine, running the specified callback. The coroutine will
…		…
2054		2714
2055	# here we export the classes and methods available to script code	2715	# here we export the classes and methods available to script code
2056		2716
2057	=pod	2717	=pod
2058		2718
2059	The following fucntions and emthods are available within a safe environment:	2719	The following functions and methods are available within a safe environment:
2060		2720
2061	cf::object contr pay_amount pay_player map	2721	cf::object
		2722	contr pay_amount pay_player map x y force_find force_add
		2723	insert remove
		2724
2062	cf::object::player player	2725	cf::object::player
2063	cf::player peaceful	2726	player
2064	cf::map trigger	2727
		2728	cf::player
		2729	peaceful
		2730
		2731	cf::map
		2732	trigger
2065		2733
2066	=cut	2734	=cut
2067		2735
2068	for (	2736	for (
2069	["cf::object" => qw(contr pay_amount pay_player map)],	2737	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2738	insert remove)],
2070	["cf::object::player" => qw(player)],	2739	["cf::object::player" => qw(player)],
2071	["cf::player" => qw(peaceful)],	2740	["cf::player" => qw(peaceful)],
2072	["cf::map" => qw(trigger)],	2741	["cf::map" => qw(trigger)],
2073	) {	2742	) {
2074	no strict 'refs';	2743	no strict 'refs';
…		…
2145	=back	2814	=back
2146		2815
2147	=cut	2816	=cut
2148		2817
2149	#############################################################################	2818	#############################################################################
		2819	# the server's init and main functions
2150		2820
2151	=head2 EXTENSION DATABASE SUPPORT	2821	sub load_facedata($) {
		2822	my ($path) = @_;
2152		2823
2153	Crossfire maintains a very simple database for extension use. It can	2824	warn "loading facedata from $path\n";
2154	currently store anything that can be serialised using Storable, which
2155	excludes objects.
2156		2825
2157	The parameter C<$family> should best start with the name of the extension	2826	my $facedata;
2158	using it, it should be unique.	2827	0 < aio_load $path, $facedata
		2828	or die "$path: $!";
2159		2829
2160	=over 4	2830	$facedata = Coro::Storable::thaw $facedata;
2161		2831
2162	=item $hashref = cf::db_get $family	2832	$facedata->{version} == 2
		2833	or cf::cleanup "$path: version mismatch, cannot proceed.";
2163		2834
2164	Return a hashref for use by the extension C<$family>, which can be
2165	modified. After modifications, you have to call C<cf::db_dirty> or
2166	C<cf::db_sync>.
2167
2168	=item $value = cf::db_get $family => $key
2169
2170	Returns a single value from the database
2171
2172	=item cf::db_put $family => $hashref
2173
2174	Stores the given family hashref into the database. Updates are delayed, if
2175	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2176
2177	=item cf::db_put $family => $key => $value
2178
2179	Stores the given C<$value> in the family hash. Updates are delayed, if you
2180	want the data to be synced to disk immediately, use C<cf::db_sync>.
2181
2182	=item cf::db_dirty
2183
2184	Marks the database as dirty, to be updated at a later time.
2185
2186	=item cf::db_sync
2187
2188	Immediately write the database to disk I<if it is dirty>.
2189
2190	=cut
2191
2192	our $DB;
2193
2194	{
2195	my $path = cf::localdir . "/database.pst";
2196
2197	sub db_load() {
2198	$DB = stat $path ? Storable::retrieve $path : { };
2199	}	2835	{
		2836	my $faces = $facedata->{faceinfo};
2200		2837
2201	my $pid;	2838	while (my ($face, $info) = each %$faces) {
		2839	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2840	cf::face::set_visibility $idx, $info->{visibility};
		2841	cf::face::set_magicmap $idx, $info->{magicmap};
		2842	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2843	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2202		2844
2203	sub db_save() {	2845	cf::cede_to_tick;
2204	waitpid $pid, 0 if $pid;
2205	if (0 == ($pid = fork)) {
2206	$DB->{_meta}{version} = 1;
2207	Storable::nstore $DB, "$path~";
2208	rename "$path~", $path;
2209	cf::_exit 0 if defined $pid;
2210	}
2211	}
2212
2213	my $dirty;
2214
2215	sub db_sync() {
2216	db_save if $dirty;
2217	undef $dirty;
2218	}
2219
2220	my $idle = Event->idle (
2221	reentrant => 0,
2222	min => 10,
2223	max => 20,
2224	repeat => 0,
2225	data => WF_AUTOCANCEL,
2226	cb => \&db_sync,
2227	);
2228
2229	sub db_dirty() {
2230	$dirty = 1;
2231	$idle->start;
2232	}
2233
2234	sub db_get($;$) {
2235	@_ >= 2
2236	? $DB->{$_[0]}{$_[1]}
2237	: ($DB->{$_[0]} ||= { })
2238	}
2239
2240	sub db_put($$;$) {
2241	if (@_ >= 3) {
2242	$DB->{$_[0]}{$_[1]} = $_[2];
2243	} else {
2244	$DB->{$_[0]} = $_[1];
2245	}
2246	db_dirty;
2247	}
2248
2249	cf::global->attach (
2250	prio => 10000,
2251	on_cleanup => sub {
2252	db_sync;
2253	},	2846	}
2254	);
2255	}
2256		2847
2257	#############################################################################	2848	while (my ($face, $info) = each %$faces) {
2258	# the server's main()	2849	next unless $info->{smooth};
		2850	my $idx = cf::face::find $face
		2851	or next;
		2852	if (my $smooth = cf::face::find $info->{smooth}) {
		2853	cf::face::set_smooth $idx, $smooth;
		2854	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2855	} else {
		2856	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2857	}
		2858
		2859	cf::cede_to_tick;
		2860	}
		2861	}
		2862
		2863	{
		2864	my $anims = $facedata->{animinfo};
		2865
		2866	while (my ($anim, $info) = each %$anims) {
		2867	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2868	cf::cede_to_tick;
		2869	}
		2870
		2871	cf::anim::invalidate_all; # d'oh
		2872	}
		2873
		2874	{
		2875	# TODO: for gcfclient pleasure, we should give resources
		2876	# that gcfclient doesn't grok a >10000 face index.
		2877	my $res = $facedata->{resource};
		2878	my $enc = JSON::XS->new->utf8->canonical;
		2879
		2880	my $soundconf = delete $res->{"res/sound.conf"};
		2881
		2882	while (my ($name, $info) = each %$res) {
		2883	my $meta = $enc->encode ({
		2884	name => $name,
		2885	%{ $info->{meta} || {} },
		2886	});
		2887
		2888	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2889
		2890	if ($info->{type} & 1) {
		2891	# prepend meta info
		2892
		2893	my $data = pack "(w/a*)*", $meta, $info->{data};
		2894	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2895
		2896	cf::face::set_data $idx, 0, $data, $chk;
		2897	} else {
		2898	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2899	}
		2900
		2901	cf::face::set_type $idx, $info->{type};
		2902
		2903	cf::cede_to_tick;
		2904	}
		2905
		2906	if ($soundconf) {
		2907	$soundconf = $enc->decode (delete $soundconf->{data});
		2908
		2909	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2910	my $sound = $soundconf->{compat}[$_]
		2911	or next;
		2912
		2913	my $face = cf::face::find "sound/$sound->[1]";
		2914	cf::sound::set $sound->[0] => $face;
		2915	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2916	}
		2917
		2918	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2919	my $face = cf::face::find "sound/$v";
		2920	cf::sound::set $k => $face;
		2921	}
		2922	}
		2923	}
		2924
		2925	1
		2926	}
		2927
		2928	register_exticmd fx_want => sub {
		2929	my ($ns, $want) = @_;
		2930
		2931	while (my ($k, $v) = each %$want) {
		2932	$ns->fx_want ($k, $v);
		2933	}
		2934	};
		2935
		2936	sub reload_regions {
		2937	load_resource_file "$MAPDIR/regions"
		2938	or die "unable to load regions file\n";
		2939
		2940	for (cf::region::list) {
		2941	$_->{match} = qr/$_->{match}/
		2942	if exists $_->{match};
		2943	}
		2944	}
		2945
		2946	sub reload_facedata {
		2947	load_facedata "$DATADIR/facedata"
		2948	or die "unable to load facedata\n";
		2949	}
		2950
		2951	sub reload_archetypes {
		2952	load_resource_file "$DATADIR/archetypes"
		2953	or die "unable to load archetypes\n";
		2954	#d# NEED to laod twice to resolve forward references
		2955	# this really needs to be done in an extra post-pass
		2956	# (which needs to be synchronous, so solve it differently)
		2957	load_resource_file "$DATADIR/archetypes"
		2958	or die "unable to load archetypes\n";
		2959	}
		2960
		2961	sub reload_treasures {
		2962	load_resource_file "$DATADIR/treasures"
		2963	or die "unable to load treasurelists\n";
		2964	}
		2965
		2966	sub reload_resources {
		2967	warn "reloading resource files...\n";
		2968
		2969	reload_regions;
		2970	reload_facedata;
		2971	#reload_archetypes;#d#
		2972	reload_archetypes;
		2973	reload_treasures;
		2974
		2975	warn "finished reloading resource files\n";
		2976	}
		2977
		2978	sub init {
		2979	reload_resources;
		2980	}
2259		2981
2260	sub cfg_load {	2982	sub cfg_load {
2261	open my $fh, "<:utf8", cf::confdir . "/config"	2983	open my $fh, "<:utf8", "$CONFDIR/config"
2262	or return;	2984	or return;
2263		2985
2264	local $/;	2986	local $/;
2265	*CFG = YAML::Syck::Load <$fh>;	2987	*CFG = YAML::Syck::Load <$fh>;
2266		2988
…		…
2286	Event::one_event;	3008	Event::one_event;
2287	})->prio (Coro::PRIO_MAX);	3009	})->prio (Coro::PRIO_MAX);
2288	};	3010	};
2289		3011
2290	cfg_load;	3012	cfg_load;
2291	db_load;	3013	db_init;
2292	load_extensions;	3014	load_extensions;
2293		3015
2294	$TICK_WATCHER->start;	3016	$TICK_WATCHER->start;
2295	Event::loop;	3017	Event::loop;
2296	}	3018	}
…		…
2311	},	3033	},
2312	);	3034	);
2313	}	3035	}
2314	}	3036	}
2315		3037
		3038	sub write_runtime {
		3039	my $runtime = "$LOCALDIR/runtime";
		3040
		3041	# first touch the runtime file to show we are still running:
		3042	# the fsync below can take a very very long time.
		3043
		3044	IO::AIO::aio_utime $runtime, undef, undef;
		3045
		3046	my $guard = cf::lock_acquire "write_runtime";
		3047
		3048	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3049	or return;
		3050
		3051	my $value = $cf::RUNTIME + 90 + 10;
		3052	# 10 is the runtime save interval, for a monotonic clock
		3053	# 60 allows for the watchdog to kill the server.
		3054
		3055	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3056	and return;
		3057
		3058	# always fsync - this file is important
		3059	aio_fsync $fh
		3060	and return;
		3061
		3062	# touch it again to show we are up-to-date
		3063	aio_utime $fh, undef, undef;
		3064
		3065	close $fh
		3066	or return;
		3067
		3068	aio_rename "$runtime~", $runtime
		3069	and return;
		3070
		3071	warn "runtime file written.\n";
		3072
		3073	1
		3074	}
		3075
2316	sub emergency_save() {	3076	sub emergency_save() {
2317	my $freeze_guard = cf::freeze_mainloop;	3077	my $freeze_guard = cf::freeze_mainloop;
2318		3078
2319	warn "enter emergency perl save\n";	3079	warn "enter emergency perl save\n";
2320		3080
…		…
2335	my $map = $cf::MAP{$path} or next;	3095	my $map = $cf::MAP{$path} or next;
2336	$map->valid or next;	3096	$map->valid or next;
2337	$map->save;	3097	$map->save;
2338	}	3098	}
2339	warn "end emergency map save\n";	3099	warn "end emergency map save\n";
		3100
		3101	warn "begin emergency database checkpoint\n";
		3102	BDB::db_env_txn_checkpoint $DB_ENV;
		3103	warn "end emergency database checkpoint\n";
2340	};	3104	};
2341		3105
2342	warn "leave emergency perl save\n";	3106	warn "leave emergency perl save\n";
2343	}	3107	}
2344		3108
		3109	sub post_cleanup {
		3110	my ($make_core) = @_;
		3111
		3112	warn Carp::longmess "post_cleanup backtrace"
		3113	if $make_core;
		3114	}
		3115
2345	sub reload() {	3116	sub do_reload_perl() {
2346	# can/must only be called in main	3117	# can/must only be called in main
2347	if ($Coro::current != $Coro::main) {	3118	if ($Coro::current != $Coro::main) {
2348	warn "can only reload from main coroutine";	3119	warn "can only reload from main coroutine";
2349	return;	3120	return;
2350	}	3121	}
2351		3122
2352	warn "reloading...";	3123	warn "reloading...";
2353		3124
2354	warn "cancelling server ticker";	3125	warn "entering sync_job";
2355	$TICK_WATCHER->cancel;
2356		3126
		3127	cf::sync_job {
		3128	cf::write_runtime; # external watchdog should not bark
2357	cf::emergency_save;	3129	cf::emergency_save;
		3130	cf::write_runtime; # external watchdog should not bark
2358		3131
2359	eval {	3132	warn "syncing database to disk";
		3133	BDB::db_env_txn_checkpoint $DB_ENV;
		3134
2360	# if anything goes wrong in here, we should simply crash as we already saved	3135	# if anything goes wrong in here, we should simply crash as we already saved
2361
2362	warn "syncing database to disk";
2363	cf::db_sync;
2364		3136
2365	warn "cancelling all WF_AUTOCANCEL watchers";	3137	warn "cancelling all WF_AUTOCANCEL watchers";
2366	for (Event::all_watchers) {	3138	for (Event::all_watchers) {
2367	$_->cancel if $_->data & WF_AUTOCANCEL;	3139	$_->cancel if $_->data & WF_AUTOCANCEL;
2368	}	3140	}
2369		3141
2370	warn "flushing outstanding aio requests";	3142	warn "flushing outstanding aio requests";
2371	for (;;) {	3143	for (;;) {
		3144	BDB::flush;
2372	IO::AIO::flush;	3145	IO::AIO::flush;
2373	Coro::cede;	3146	Coro::cede;
2374	last unless IO::AIO::nreqs;	3147	last unless IO::AIO::nreqs || BDB::nreqs;
2375	warn "iterate...";	3148	warn "iterate...";
2376	}	3149	}
		3150
		3151	++$RELOAD;
2377		3152
2378	warn "cancelling all extension coros";	3153	warn "cancelling all extension coros";
2379	$_->cancel for values %EXT_CORO;	3154	$_->cancel for values %EXT_CORO;
2380	%EXT_CORO = ();	3155	%EXT_CORO = ();
2381		3156
2382	warn "removing commands";	3157	warn "removing commands";
2383	%COMMAND = ();	3158	%COMMAND = ();
2384		3159
2385	warn "removing ext commands";	3160	warn "removing ext/exti commands";
2386	%EXTCMD = ();	3161	%EXTCMD = ();
		3162	%EXTICMD = ();
2387		3163
2388	warn "unloading/nuking all extensions";	3164	warn "unloading/nuking all extensions";
2389	for my $pkg (@EXTS) {	3165	for my $pkg (@EXTS) {
2390	warn "... unloading $pkg";	3166	warn "... unloading $pkg";
2391		3167
…		…
2421	Symbol::delete_package "safe::$_"	3197	Symbol::delete_package "safe::$_"
2422	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3198	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2423		3199
2424	warn "unloading cf.pm \"a bit\"";	3200	warn "unloading cf.pm \"a bit\"";
2425	delete $INC{"cf.pm"};	3201	delete $INC{"cf.pm"};
		3202	delete $INC{"cf/pod.pm"};
2426		3203
2427	# don't, removes xs symbols, too,	3204	# don't, removes xs symbols, too,
2428	# and global variables created in xs	3205	# and global variables created in xs
2429	#Symbol::delete_package __PACKAGE__;	3206	#Symbol::delete_package __PACKAGE__;
2430		3207
…		…
2434	require cf;	3211	require cf;
2435	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3212	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2436		3213
2437	warn "loading config and database again";	3214	warn "loading config and database again";
2438	cf::cfg_load;	3215	cf::cfg_load;
2439	cf::db_load;
2440		3216
2441	warn "loading extensions";	3217	warn "loading extensions";
2442	cf::load_extensions;	3218	cf::load_extensions;
2443		3219
2444	warn "reattaching attachments to objects/players";	3220	warn "reattaching attachments to objects/players";
2445	_global_reattach;	3221	_global_reattach; # objects, sockets
2446	warn "reattaching attachments to maps";	3222	warn "reattaching attachments to maps";
2447	reattach $_ for values %MAP;	3223	reattach $_ for values %MAP;
		3224	warn "reattaching attachments to players";
		3225	reattach $_ for values %PLAYER;
2448		3226
2449	warn "restarting server ticker";	3227	warn "leaving sync_job";
2450		3228
2451	$TICK_WATCHER->start;	3229	1
2452	};	3230	} or do {
2453
2454	if ($@) {
2455	warn $@;	3231	warn $@;
2456	warn "error while reloading, exiting.";	3232	warn "error while reloading, exiting.";
2457	exit 1;	3233	exit 1;
2458	}	3234	};
2459		3235
2460	warn "reloaded";	3236	warn "reloaded";
2461	};	3237	};
2462		3238
2463	our $RELOAD_WATCHER; # used only during reload	3239	our $RELOAD_WATCHER; # used only during reload
2464		3240
		3241	sub reload_perl() {
		3242	# doing reload synchronously and two reloads happen back-to-back,
		3243	# coro crashes during coro_state_free->destroy here.
		3244
		3245	$RELOAD_WATCHER ||= Event->timer (
		3246	reentrant => 0,
		3247	after => 0,
		3248	data => WF_AUTOCANCEL,
		3249	cb => sub {
		3250	do_reload_perl;
		3251	undef $RELOAD_WATCHER;
		3252	},
		3253	);
		3254	}
		3255
2465	register_command "reload" => sub {	3256	register_command "reload" => sub {
2466	my ($who, $arg) = @_;	3257	my ($who, $arg) = @_;
2467		3258
2468	if ($who->flag (FLAG_WIZ)) {	3259	if ($who->flag (FLAG_WIZ)) {
2469	$who->message ("reloading server.");	3260	$who->message ("reloading server.");
2470		3261	async { reload_perl };
2471	# doing reload synchronously and two reloads happen back-to-back,
2472	# coro crashes during coro_state_free->destroy here.
2473
2474	$RELOAD_WATCHER ||= Event->timer (
2475	reentrant => 0,
2476	after => 0,
2477	data => WF_AUTOCANCEL,
2478	cb => sub {
2479	reload;
2480	undef $RELOAD_WATCHER;
2481	},
2482	);
2483	}	3262	}
2484	};	3263	};
2485		3264
2486	unshift @INC, $LIBDIR;	3265	unshift @INC, $LIBDIR;
2487		3266
2488	my $bug_warning = 0;	3267	my $bug_warning = 0;
2489		3268
		3269	our @WAIT_FOR_TICK;
		3270	our @WAIT_FOR_TICK_BEGIN;
		3271
		3272	sub wait_for_tick {
		3273	return unless $TICK_WATCHER->is_active;
		3274	return if $Coro::current == $Coro::main;
		3275
		3276	my $signal = new Coro::Signal;
		3277	push @WAIT_FOR_TICK, $signal;
		3278	$signal->wait;
		3279	}
		3280
		3281	sub wait_for_tick_begin {
		3282	return unless $TICK_WATCHER->is_active;
		3283	return if $Coro::current == $Coro::main;
		3284
		3285	my $signal = new Coro::Signal;
		3286	push @WAIT_FOR_TICK_BEGIN, $signal;
		3287	$signal->wait;
		3288	}
		3289
		3290	my $min = 1e6;#d#
		3291	my $avg = 10;
2490	$TICK_WATCHER = Event->timer (	3292	$TICK_WATCHER = Event->timer (
2491	reentrant => 0,	3293	reentrant => 0,
2492	parked => 1,	3294	parked => 1,
2493	prio => 0,	3295	prio => 0,
2494	at => $NEXT_TICK || $TICK,	3296	at => $NEXT_TICK || $TICK,
…		…
2498	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3300	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2499	unless ++$bug_warning > 10;	3301	unless ++$bug_warning > 10;
2500	return;	3302	return;
2501	}	3303	}
2502		3304
2503	$NOW = Event::time;	3305	$NOW = $tick_start = Event::time;
2504		3306
2505	cf::server_tick; # one server iteration	3307	cf::server_tick; # one server iteration
		3308
		3309	0 && sync_job {#d#
		3310	for(1..10) {
		3311	my $t = Event::time;
		3312	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3313	or die;
		3314
		3315	$map->width (50);
		3316	$map->height (50);
		3317	$map->alloc;
		3318	$map->_load_objects ("/tmp/x.map", 1);
		3319	my $t = Event::time - $t;
		3320
		3321	#next unless $t < 0.0013;#d#
		3322	if ($t < $min) {
		3323	$min = $t;
		3324	}
		3325	$avg = $avg * 0.99 + $t * 0.01;
		3326	}
		3327	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3328	exit 0;
		3329	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3330	};
		3331
2506	$RUNTIME += $TICK;	3332	$RUNTIME += $TICK;
2507	$NEXT_TICK += $TICK;	3333	$NEXT_TICK += $TICK;
2508		3334
2509	$WAIT_FOR_TICK->broadcast;	3335	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2510	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3336	$NEXT_RUNTIME_WRITE = $NOW + 10;
2511		3337	Coro::async_pool {
2512	Event::sweep;	3338	write_runtime
2513	Coro::cede_notself;	3339	or warn "ERROR: unable to write runtime file: $!";
		3340	};
2514		3341	}
		3342
2515	# my $AFTER = Event::time;	3343	# my $AFTER = Event::time;
2516	# warn $AFTER - $NOW;#d#	3344	# warn $AFTER - $NOW;#d#
2517		3345
		3346	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3347	$sig->send;
		3348	}
		3349	while (my $sig = shift @WAIT_FOR_TICK) {
		3350	$sig->send;
		3351	}
		3352
		3353	$NOW = Event::time;
		3354
2518	# if we are delayed by four ticks or more, skip them all	3355	# if we are delayed by four ticks or more, skip them all
2519	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3356	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2520		3357
2521	$TICK_WATCHER->at ($NEXT_TICK);	3358	$TICK_WATCHER->at ($NEXT_TICK);
2522	$TICK_WATCHER->start;	3359	$TICK_WATCHER->start;
		3360
		3361	$LOAD = ($NOW - $tick_start) / $TICK;
		3362	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3363
		3364	_post_tick;
		3365
		3366
2523	},	3367	},
2524	);	3368	);
2525		3369
		3370	{
		3371	BDB::max_poll_time $TICK * 0.1;
		3372	$BDB_POLL_WATCHER = Event->io (
		3373	reentrant => 0,
		3374	fd => BDB::poll_fileno,
		3375	poll => 'r',
		3376	prio => 0,
		3377	data => WF_AUTOCANCEL,
		3378	cb => \&BDB::poll_cb,
		3379	);
		3380	BDB::min_parallel 8;
		3381
		3382	BDB::set_sync_prepare {
		3383	my $status;
		3384	my $current = $Coro::current;
		3385	(
		3386	sub {
		3387	$status = $!;
		3388	$current->ready; undef $current;
		3389	},
		3390	sub {
		3391	Coro::schedule while defined $current;
		3392	$! = $status;
		3393	},
		3394	)
		3395	};
		3396
		3397	unless ($DB_ENV) {
		3398	$DB_ENV = BDB::db_env_create;
		3399
		3400	cf::sync_job {
		3401	eval {
		3402	BDB::db_env_open
		3403	$DB_ENV,
		3404	$BDBDIR,
		3405	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3406	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3407	0666;
		3408
		3409	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3410
		3411	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3412	$DB_ENV->set_lk_detect;
		3413	};
		3414
		3415	cf::cleanup "db_env_open(db): $@" if $@;
		3416	};
		3417	}
		3418	}
		3419
		3420	{
		3421	IO::AIO::min_parallel 8;
		3422
		3423	undef $Coro::AIO::WATCHER;
2526	IO::AIO::max_poll_time $TICK * 0.1;	3424	IO::AIO::max_poll_time $TICK * 0.1;
2527
2528	undef $Coro::AIO::WATCHER;
2529	$AIO_POLL_WATCHER = Event->io (	3425	$AIO_POLL_WATCHER = Event->io (
2530	reentrant => 0,	3426	reentrant => 0,
		3427	data => WF_AUTOCANCEL,
2531	fd => IO::AIO::poll_fileno,	3428	fd => IO::AIO::poll_fileno,
2532	poll => 'r',	3429	poll => 'r',
2533	prio => 6,	3430	prio => 6,
2534	data => WF_AUTOCANCEL,
2535	cb => \&IO::AIO::poll_cb,	3431	cb => \&IO::AIO::poll_cb,
2536	);	3432	);
		3433	}
2537		3434
2538	$WRITE_RUNTIME_WATCHER = Event->timer (	3435	my $_log_backtrace;
2539	reentrant => 0,	3436
2540	data => WF_AUTOCANCEL,	3437	sub _log_backtrace {
2541	after => 1,	3438	my ($msg, @addr) = @_;
2542	interval => 10,	3439
2543	prio => 6, # keep it lowest so it acts like a watchdog	3440	$msg =~ s/\n//;
2544	cb => Coro::unblock_sub {	3441
2545	write_runtime	3442	# limit the # of concurrent backtraces
2546	or warn "ERROR: unable to write runtime file: $!";	3443	if ($_log_backtrace < 2) {
		3444	++$_log_backtrace;
		3445	async {
		3446	my @bt = fork_call {
		3447	@addr = map { sprintf "%x", $_ } @addr;
		3448	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3449	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3450	or die "addr2line: $!";
		3451
		3452	my @funcs;
		3453	my @res = <$fh>;
		3454	chomp for @res;
		3455	while (@res) {
		3456	my ($func, $line) = splice @res, 0, 2, ();
		3457	push @funcs, "[$func] $line";
		3458	}
		3459
		3460	@funcs
		3461	};
		3462
		3463	LOG llevInfo, "[ABT] $msg\n";
		3464	LOG llevInfo, "[ABT] $_\n" for @bt;
		3465	--$_log_backtrace;
		3466	};
		3467	} else {
		3468	LOG llevInfo, "[ABT] $msg\n";
		3469	LOG llevInfo, "[ABT] [suppressed]\n";
2547	},	3470	}
2548	);	3471	}
		3472
		3473	# load additional modules
		3474	use cf::pod;
2549		3475
2550	END { cf::emergency_save }	3476	END { cf::emergency_save }
2551		3477
2552	1	3478	1
2553		3479

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