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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.200 by root, Mon Jan 29 17:57:22 2007 UTC vs.
Revision 1.315 by root, Mon Jul 23 17:53:55 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.5 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use JSON::XS 1.4 ();
		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";
…		…
776	}	1071	}
777	} else {	1072	} else {
778	aio_unlink $filename;	1073	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1074	aio_unlink "$filename.pst";
780	}	1075	}
781
782	#d##TODO# nuke non .map-files if exist
783	if ($filename =~ s/\.map$//) {
784	aio_unlink $filename;
785	aio_unlink "$filename.pst";
786	}
787	}	1076	}
788	}	1077	}
789		1078
790	sub object_freezer_as_string {	1079	sub object_freezer_as_string {
791	my ($rdata, $objs) = @_;	1080	my ($rdata, $objs) = @_;
…		…
797		1086
798	sub object_thawer_load {	1087	sub object_thawer_load {
799	my ($filename) = @_;	1088	my ($filename) = @_;
800		1089
801	my ($data, $av);	1090	my ($data, $av);
802
803	#d#TODO remove .map if file does not exist
804	aio_stat $filename and $filename =~ s/\.map$//;
805		1091
806	(aio_load $filename, $data) >= 0	1092	(aio_load $filename, $data) >= 0
807	or return;	1093	or return;
808		1094
809	unless (aio_stat "$filename.pst") {	1095	unless (aio_stat "$filename.pst") {
…		…
811	or return;	1097	or return;
812	$av = eval { (Storable::thaw $av)->{objs} };	1098	$av = eval { (Storable::thaw $av)->{objs} };
813	}	1099	}
814		1100
815	warn sprintf "loading %s (%d)\n",	1101	warn sprintf "loading %s (%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1102	$filename, length $data, scalar @{$av || []};
817	return ($data, $av);	1103	return ($data, $av);
818	}	1104	}
		1105
		1106	=head2 COMMAND CALLBACKS
		1107
		1108	=over 4
		1109
		1110	=cut
819		1111
820	#############################################################################	1112	#############################################################################
821	# command handling &c	1113	# command handling &c
822		1114
823	=item cf::register_command $name => \&callback($ob,$args);	1115	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1128	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1129	}
838		1130
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1131	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1132
841	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.
842		1138
843	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
844	called.	1140	called.
845		1141
		1142	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1143
		1144	Register a callback for execution when the client sends an (asynchronous)
		1145	exticmd packet. Exti commands are processed by the server as soon as they
		1146	are received, i.e. out of order w.r.t. other commands. The first argument
		1147	is a client socket. Exti commands can be received anytime, even before
		1148	log-in.
		1149
		1150	If the callback returns something, it is sent back as if reply was being
		1151	called.
		1152
846	=cut	1153	=cut
847		1154
848	sub register_extcmd {	1155	sub register_extcmd {
849	my ($name, $cb) = @_;	1156	my ($name, $cb) = @_;
850		1157
851	$EXTCMD{$name} = $cb;	1158	$EXTCMD{$name} = $cb;
		1159	}
		1160
		1161	sub register_exticmd {
		1162	my ($name, $cb) = @_;
		1163
		1164	$EXTICMD{$name} = $cb;
852	}	1165	}
853		1166
854	cf::player->attach (	1167	cf::player->attach (
855	on_command => sub {	1168	on_command => sub {
856	my ($pl, $name, $params) = @_;	1169	my ($pl, $name, $params) = @_;
…		…
865	cf::override;	1178	cf::override;
866	},	1179	},
867	on_extcmd => sub {	1180	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1181	my ($pl, $buf) = @_;
869		1182
870	my $msg = eval { from_json $buf };	1183	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1184
872	if (ref $msg) {	1185	if (ref $msg) {
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1186	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
874	if (my %reply = $cb->($pl, $msg)) {	1187	if (my %reply = $cb->($pl, $msg)) {
875	$pl->ext_reply ($msg->{msgid}, %reply);	1188	$pl->ext_reply ($msg->{msgid}, %reply);
…		…
881		1194
882	cf::override;	1195	cf::override;
883	},	1196	},
884	);	1197	);
885		1198
886	sub load_extension {
887	my ($path) = @_;
888
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
890	my $base = $1;
891	my $pkg = $1;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}
914	die $@;
915	}
916
917	push @EXTS, $pkg;
918	}
919
920	sub load_extensions {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
921	for my $ext (<$LIBDIR/*.ext>) {	1203	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1204	next unless -r $path;
923	eval {	1205
924	load_extension $ext;	1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
925	1	1263	}
926	} or warn "$ext not loaded: $@";	1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
927	}	1269	};
928	}	1270	}
929		1271
930	#############################################################################	1272	#############################################################################
931		1273
		1274	=back
		1275
932	=head2 CORE EXTENSIONS	1276	=head2 CORE EXTENSIONS
933		1277
934	Functions and methods that extend core crossfire objects.	1278	Functions and methods that extend core crossfire objects.
935		1279
936	=cut	1280	=cut
…		…
948	Returns the given player object, loading it if necessary (might block).	1292	Returns the given player object, loading it if necessary (might block).
949		1293
950	=cut	1294	=cut
951		1295
952	sub playerdir($) {	1296	sub playerdir($) {
953	cf::localdir	1297	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1298	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1299	}
959		1300
960	sub path($) {	1301	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1302	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1303
963	(playerdir $login) . "/$login.pl"	1304	(playerdir $login) . "/playerdata"
964	}	1305	}
965		1306
966	sub find_active($) {	1307	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1308	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1309	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1322	my $login = $_[0];
982		1323
983	my $guard = cf::lock_acquire "user_find:$login";	1324	my $guard = cf::lock_acquire "user_find:$login";
984		1325
985	$cf::PLAYER{$_[0]} || do {	1326	$cf::PLAYER{$_[0]} || do {
		1327	# rename old playerfiles to new ones
		1328	#TODO: remove when no longer required
		1329	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1330	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1331	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1332	aio_unlink +(playerdir $login) . "/$login.pl";
		1333
986	my $pl = load_pl path $login	1334	my $pl = load_pl path $login
987	or return;	1335	or return;
988	$cf::PLAYER{$login} = $pl	1336	$cf::PLAYER{$login} = $pl
989	}	1337	}
990	}	1338	}
…		…
1027		1375
1028	=cut	1376	=cut
1029		1377
1030	sub quit_character {	1378	sub quit_character {
1031	my ($pl) = @_;	1379	my ($pl) = @_;
		1380
		1381	my $name = $pl->ob->name;
1032		1382
1033	$pl->{deny_save} = 1;	1383	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1384	$pl->password ("*"); # this should lock out the player until we nuked the dir
1035		1385
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1386	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1391	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1392	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1393	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1394	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1395	$pl->destroy;
		1396
		1397	my $prefix = qr<^~\Q$name\E/>;
		1398
		1399	# nuke player maps
		1400	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1401
1046	IO::AIO::aio_rmtree $temp;	1402	IO::AIO::aio_rmtree $temp;
		1403	}
		1404
		1405	=item $pl->kick
		1406
		1407	Kicks a player out of the game. This destroys the connection.
		1408
		1409	=cut
		1410
		1411	sub kick {
		1412	my ($pl, $kicker) = @_;
		1413
		1414	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1415	$pl->killer ("kicked");
		1416	$pl->ns->destroy;
1047	}	1417	}
1048		1418
1049	=item cf::player::list_logins	1419	=item cf::player::list_logins
1050		1420
1051	Returns am arrayref of all valid playernames in the system, can take a	1421	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1422	while and may block, so not sync_job-capable, ever.
1053		1423
1054	=cut	1424	=cut
1055		1425
1056	sub list_logins {	1426	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1427	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1428	or return [];
1059		1429
1060	my @logins;	1430	my @logins;
1061		1431
1062	for my $login (@$dirs) {	1432	for my $login (@$dirs) {
…		…
1079	=cut	1449	=cut
1080		1450
1081	sub maps($) {	1451	sub maps($) {
1082	my ($pl) = @_;	1452	my ($pl) = @_;
1083		1453
		1454	$pl = ref $pl ? $pl->ob->name : $pl;
		1455
1084	my $files = aio_readdir playerdir $pl	1456	my $files = aio_readdir playerdir $pl
1085	or return;	1457	or return;
1086		1458
1087	my @paths;	1459	my @paths;
1088		1460
1089	for (@$files) {	1461	for (@$files) {
1090	utf8::decode $_;	1462	utf8::decode $_;
1091	next if /\.(?:pl|pst)$/;	1463	next if /\.(?:pl|pst)$/;
1092	next unless /^$PATH_SEP/o;	1464	next unless /^$PATH_SEP/o;
1093		1465
1094	push @paths, cf::map::normalise "~" . $pl->ob->name . "/" . $_;	1466	push @paths, cf::map::normalise "~$pl/$_";
1095	}	1467	}
1096		1468
1097	\@paths	1469	\@paths
1098	}	1470	}
1099		1471
		1472	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1473
		1474	Expand crossfire pod fragments into protocol xml.
		1475
		1476	=cut
		1477
		1478	sub expand_cfpod {
		1479	((my $self), (local $_)) = @_;
		1480
		1481	# escape & and <
		1482	s/&/&amp;/g;
		1483	s/(?<![BIUGH])</&lt;/g;
		1484
		1485	# this is buggy, it needs to properly take care of nested <'s
		1486
		1487	1 while
		1488	# replace B<>, I<>, U<> etc.
		1489	s/B<([^\>]*)>/<b>$1<\/b>/
		1490	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1491	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1492	# replace G<male|female> tags
		1493	|| s{G<([^>|]*)\|([^>]*)>}{
		1494	$self->gender ? $2 : $1
		1495	}ge
		1496	# replace H<hint text>
		1497	|| s{H<([^\>]*)>}
		1498	{
		1499	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1500	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1501	"")
		1502	[$self->{hintmode}]
		1503	}ge;
		1504
		1505	# create single paragraphs (very hackish)
		1506	s/(?<=\S)\n(?=\w)/ /g;
		1507
		1508	# compress some whitespace
		1509	s/\s+\n/\n/g; # ws line-ends
		1510	s/\n\n+/\n/g; # double lines
		1511	s/^\n+//; # beginning lines
		1512	s/\n+$//; # ending lines
		1513
		1514	$_
		1515	}
		1516
		1517	sub hintmode {
		1518	$_[0]{hintmode} = $_[1] if @_ > 1;
		1519	$_[0]{hintmode}
		1520	}
		1521
1100	=item $player->ext_reply ($msgid, $msgtype, %msg)	1522	=item $player->ext_reply ($msgid, %msg)
1101		1523
1102	Sends an ext reply to the player.	1524	Sends an ext reply to the player.
1103		1525
1104	=cut	1526	=cut
1105		1527
1106	sub ext_reply($$$%) {	1528	sub ext_reply($$%) {
1107	my ($self, $id, %msg) = @_;	1529	my ($self, $id, %msg) = @_;
1108		1530
1109	$msg{msgid} = $id;	1531	$msg{msgid} = $id;
1110		1532	$self->send ("ext " . $self->ns->{json_coder}->encode (\%msg));
1111	$self->send ("ext " . cf::to_json \%msg);
1112	}	1533	}
1113		1534
1114	package cf;	1535	=item $player->ext_event ($type, %msg)
		1536
		1537	Sends an ext event to the client.
		1538
		1539	=cut
		1540
		1541	sub ext_event($$%) {
		1542	my ($self, $type, %msg) = @_;
		1543
		1544	$self->ns->ext_event ($type, %msg);
		1545	}
		1546
		1547	=head3 cf::region
		1548
		1549	=over 4
		1550
		1551	=cut
		1552
		1553	package cf::region;
		1554
		1555	=item cf::region::find_by_path $path
		1556
		1557	Tries to decuce the likely region for a map knowing only its path.
		1558
		1559	=cut
		1560
		1561	sub find_by_path($) {
		1562	my ($path) = @_;
		1563
		1564	my ($match, $specificity);
		1565
		1566	for my $region (list) {
		1567	if ($region->{match} && $path =~ $region->{match}) {
		1568	($match, $specificity) = ($region, $region->specificity)
		1569	if $region->specificity > $specificity;
		1570	}
		1571	}
		1572
		1573	$match
		1574	}
1115		1575
1116	=back	1576	=back
1117
1118		1577
1119	=head3 cf::map	1578	=head3 cf::map
1120		1579
1121	=over 4	1580	=over 4
1122		1581
…		…
1177	my ($self, $merge) = @_;	1636	my ($self, $merge) = @_;
1178		1637
1179	# we have to keep some variables in memory intact	1638	# we have to keep some variables in memory intact
1180	local $self->{path};	1639	local $self->{path};
1181	local $self->{load_path};	1640	local $self->{load_path};
1182	local $self->{deny_save};
1183	local $self->{deny_reset};
1184		1641
1185	$self->SUPER::thawer_merge ($merge);	1642	$self->SUPER::thawer_merge ($merge);
1186	}	1643	}
1187		1644
1188	sub normalise {	1645	sub normalise {
…		…
1235	$self->init; # pass $1 etc.	1692	$self->init; # pass $1 etc.
1236	return $self;	1693	return $self;
1237	}	1694	}
1238	}	1695	}
1239		1696
1240	Carp::carp "unable to resolve path '$path' (base '$base').";	1697	Carp::cluck "unable to resolve path '$path' (base '$base').";
1241	()	1698	()
1242	}	1699	}
1243		1700
1244	sub init {	1701	sub init {
1245	my ($self) = @_;	1702	my ($self) = @_;
…		…
1260		1717
1261	# the original (read-only) location	1718	# the original (read-only) location
1262	sub load_path {	1719	sub load_path {
1263	my ($self) = @_;	1720	my ($self) = @_;
1264		1721
1265	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1722	"$MAPDIR/$self->{path}.map"
1266	}	1723	}
1267		1724
1268	# the temporary/swap location	1725	# the temporary/swap location
1269	sub save_path {	1726	sub save_path {
1270	my ($self) = @_;	1727	my ($self) = @_;
1271		1728
1272	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1729	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1273	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1730	"$TMPDIR/$path.map"
1274	}	1731	}
1275		1732
1276	# the unique path, undef == no special unique path	1733	# the unique path, undef == no special unique path
1277	sub uniq_path {	1734	sub uniq_path {
1278	my ($self) = @_;	1735	my ($self) = @_;
1279		1736
1280	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1737	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1281	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1738	"$UNIQUEDIR/$path"
1282	}	1739	}
1283		1740
1284	# and all this just because we cannot iterate over	1741	# and all this just because we cannot iterate over
1285	# all maps in C++...	1742	# all maps in C++...
1286	sub change_all_map_light {	1743	sub change_all_map_light {
…		…
1288		1745
1289	$_->change_map_light ($change)	1746	$_->change_map_light ($change)
1290	for grep $_->outdoor, values %cf::MAP;	1747	for grep $_->outdoor, values %cf::MAP;
1291	}	1748	}
1292		1749
		1750	sub decay_objects {
		1751	my ($self) = @_;
		1752
		1753	return if $self->{deny_reset};
		1754
		1755	$self->do_decay_objects;
		1756	}
		1757
1293	sub unlink_save {	1758	sub unlink_save {
1294	my ($self) = @_;	1759	my ($self) = @_;
1295		1760
1296	utf8::encode (my $save = $self->save_path);	1761	utf8::encode (my $save = $self->save_path);
1297	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1762	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1298	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1763	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1299
1300	#d#TODO remove .map and also nuke
1301	$save =~ s/\.map// or return;#d#
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1303	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1304	}	1764	}
1305		1765
1306	sub load_header_from($) {	1766	sub load_header_from($) {
1307	my ($self, $path) = @_;	1767	my ($self, $path) = @_;
1308		1768
…		…
1358	$self->load_header_orig	1818	$self->load_header_orig
1359	or return;	1819	or return;
1360	$self->prepare_orig;	1820	$self->prepare_orig;
1361	}	1821	}
1362		1822
		1823	$self->{deny_reset} = 1
		1824	if $self->no_reset;
		1825
		1826	$self->default_region (cf::region::find_by_path $self->{path})
		1827	unless $self->default_region;
		1828
1363	1	1829	1
1364	}	1830	}
1365		1831
1366	sub find;	1832	sub find;
1367	sub find {	1833	sub find {
…		…
1379	$map->{last_save} = $cf::RUNTIME;	1845	$map->{last_save} = $cf::RUNTIME;
1380		1846
1381	$map->load_header	1847	$map->load_header
1382	or return;	1848	or return;
1383		1849
1384	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1850	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1385	# doing this can freeze the server in a sync job, obviously	1851	# doing this can freeze the server in a sync job, obviously
1386	#$cf::WAIT_FOR_TICK->wait;	1852	#$cf::WAIT_FOR_TICK->wait;
1387	$map->reset;	1853	$map->reset;
1388	undef $guard;	1854	undef $guard;
1389	return find $path;	1855	return find $path;
…		…
1400	my ($self) = @_;	1866	my ($self) = @_;
1401		1867
1402	local $self->{deny_reset} = 1; # loading can take a long time	1868	local $self->{deny_reset} = 1; # loading can take a long time
1403		1869
1404	my $path = $self->{path};	1870	my $path = $self->{path};
		1871
		1872	{
1405	my $guard = cf::lock_acquire "map_load:$path";	1873	my $guard = cf::lock_acquire "map_load:$path";
1406		1874
1407	return if $self->in_memory != cf::MAP_SWAPPED;	1875	return if $self->in_memory != cf::MAP_SWAPPED;
1408		1876
1409	$self->in_memory (cf::MAP_LOADING);	1877	$self->in_memory (cf::MAP_LOADING);
1410		1878
1411	$self->alloc;	1879	$self->alloc;
1412		1880
1413	$self->pre_load;	1881	$self->pre_load;
1414
1415	$self->_load_objects ($self->{load_path}, 1)
1416	or return;
1417
1418	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1419	if delete $self->{load_original};
1420
1421	if (my $uniq = $self->uniq_path) {
1422	utf8::encode $uniq;
1423	if (aio_open $uniq, O_RDONLY, 0) {
1424	$self->clear_unique_items;
1425	$self->_load_objects ($uniq, 0);
1426	}
1427	}
1428
1429	Coro::cede;
1430
1431	# now do the right thing for maps
1432	$self->link_multipart_objects;
1433
1434	unless ($self->{deny_activate}) {
1435	$self->decay_objects;
1436	$self->fix_auto_apply;
1437	$self->update_buttons;
1438	Coro::cede;	1882	Coro::cede;
1439	$self->set_darkness_map;	1883
		1884	$self->_load_objects ($self->{load_path}, 1)
		1885	or return;
		1886
		1887	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
		1888	if delete $self->{load_original};
		1889
		1890	if (my $uniq = $self->uniq_path) {
		1891	utf8::encode $uniq;
		1892	if (aio_open $uniq, O_RDONLY, 0) {
		1893	$self->clear_unique_items;
		1894	$self->_load_objects ($uniq, 0);
		1895	}
		1896	}
		1897
		1898	Coro::cede;
		1899	# now do the right thing for maps
		1900	$self->link_multipart_objects;
1440	$self->difficulty ($self->estimate_difficulty)	1901	$self->difficulty ($self->estimate_difficulty)
1441	unless $self->difficulty;	1902	unless $self->difficulty;
1442	Coro::cede;	1903	Coro::cede;
		1904
		1905	unless ($self->{deny_activate}) {
		1906	$self->decay_objects;
		1907	$self->fix_auto_apply;
		1908	$self->update_buttons;
		1909	Coro::cede;
		1910	$self->set_darkness_map;
		1911	Coro::cede;
1443	$self->activate;	1912	$self->activate;
		1913	}
		1914
		1915	$self->in_memory (cf::MAP_IN_MEMORY);
1444	}	1916	}
1445		1917
1446	$self->post_load;	1918	$self->post_load;
1447
1448	$self->in_memory (cf::MAP_IN_MEMORY);
1449	}	1919	}
1450		1920
1451	sub customise_for {	1921	sub customise_for {
1452	my ($self, $ob) = @_;	1922	my ($self, $ob) = @_;
1453		1923
1454	return find "~" . $ob->name . "/" . $self->{path}	1924	return find "~" . $ob->name . "/" . $self->{path}
1455	if $self->per_player;	1925	if $self->per_player;
		1926
		1927	# return find "?party/" . $ob->name . "/" . $self->{path}
		1928	# if $self->per_party;
1456		1929
1457	$self	1930	$self
1458	}	1931	}
1459		1932
1460	# find and load all maps in the 3x3 area around a map	1933	# find and load all maps in the 3x3 area around a map
…		…
1507		1980
1508	undef $MAP_PREFETCH{$path};	1981	undef $MAP_PREFETCH{$path};
1509	$MAP_PREFETCHER ||= cf::async {	1982	$MAP_PREFETCHER ||= cf::async {
1510	while (%MAP_PREFETCH) {	1983	while (%MAP_PREFETCH) {
1511	for my $path (keys %MAP_PREFETCH) {	1984	for my $path (keys %MAP_PREFETCH) {
1512	my $map = find $path	1985	if (my $map = find $path) {
1513	or next;
1514	$map->load;	1986	$map->load;
		1987	}
1515		1988
1516	delete $MAP_PREFETCH{$path};	1989	delete $MAP_PREFETCH{$path};
1517	}	1990	}
1518	}	1991	}
1519	undef $MAP_PREFETCHER;	1992	undef $MAP_PREFETCHER;
…		…
1571		2044
1572	sub reset_at {	2045	sub reset_at {
1573	my ($self) = @_;	2046	my ($self) = @_;
1574		2047
1575	# TODO: safety, remove and allow resettable per-player maps	2048	# TODO: safety, remove and allow resettable per-player maps
1576	return 1e99 if $self->isa ("ext::map_per_player");#d#
1577	return 1e99 if $self->{deny_reset};	2049	return 1e99 if $self->{deny_reset};
1578		2050
1579	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2051	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1580	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2052	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1581		2053
…		…
1592	my ($self) = @_;	2064	my ($self) = @_;
1593		2065
1594	my $lock = cf::lock_acquire "map_data:$self->{path}";	2066	my $lock = cf::lock_acquire "map_data:$self->{path}";
1595		2067
1596	return if $self->players;	2068	return if $self->players;
1597	return if $self->isa ("ext::map_per_player");#d#
1598		2069
1599	warn "resetting map ", $self->path;#d#	2070	warn "resetting map ", $self->path;
		2071
		2072	$self->in_memory (cf::MAP_SWAPPED);
		2073
		2074	# need to save uniques path
		2075	unless ($self->{deny_save}) {
		2076	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2077
		2078	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2079	if $uniq;
		2080	}
1600		2081
1601	delete $cf::MAP{$self->path};	2082	delete $cf::MAP{$self->path};
1602		2083
1603	$self->in_memory (cf::MAP_SWAPPED);
1604	$self->clear;	2084	$self->clear;
1605		2085
1606	$_->clear_links_to ($self) for values %cf::MAP;	2086	$_->clear_links_to ($self) for values %cf::MAP;
1607		2087
1608	$self->unlink_save;	2088	$self->unlink_save;
…		…
1627	$cf::MAP{$self->path} = $self;	2107	$cf::MAP{$self->path} = $self;
1628		2108
1629	$self->reset; # polite request, might not happen	2109	$self->reset; # polite request, might not happen
1630	}	2110	}
1631		2111
		2112	=item $maps = cf::map::tmp_maps
		2113
		2114	Returns an arrayref with all map paths of currently instantiated and saved
		2115	maps. May block.
		2116
		2117	=cut
		2118
		2119	sub tmp_maps() {
		2120	[
		2121	map {
		2122	utf8::decode $_;
		2123	/\.map$/
		2124	? normalise $_
		2125	: ()
		2126	} @{ aio_readdir $TMPDIR or [] }
		2127	]
		2128	}
		2129
		2130	=item $maps = cf::map::random_maps
		2131
		2132	Returns an arrayref with all map paths of currently instantiated and saved
		2133	random maps. May block.
		2134
		2135	=cut
		2136
		2137	sub random_maps() {
		2138	[
		2139	map {
		2140	utf8::decode $_;
		2141	/\.map$/
		2142	? normalise "?random/$_"
		2143	: ()
		2144	} @{ aio_readdir $RANDOMDIR or [] }
		2145	]
		2146	}
		2147
1632	=item cf::map::unique_maps	2148	=item cf::map::unique_maps
1633		2149
1634	Returns an arrayref of paths of all shared maps that have	2150	Returns an arrayref of paths of all shared maps that have
1635	instantiated unique items. May block.	2151	instantiated unique items. May block.
1636		2152
1637	=cut	2153	=cut
1638		2154
1639	sub unique_maps() {	2155	sub unique_maps() {
1640	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2156	[
1641	or return;	2157	map {
1642
1643	my @paths;
1644
1645	for (@$files) {
1646	utf8::decode $_;	2158	utf8::decode $_;
1647	next if /\.pst$/;	2159	/\.map$/
1648	next unless /^$PATH_SEP/o;	2160	? normalise $_
1649		2161	: ()
1650	push @paths, cf::map::normalise $_;	2162	} @{ aio_readdir $UNIQUEDIR or [] }
1651	}	2163	]
1652
1653	\@paths
1654	}	2164	}
1655		2165
1656	package cf;	2166	package cf;
1657		2167
1658	=back	2168	=back
…		…
1704		2214
1705	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2215	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1706		2216
1707	if ($self->{record_replies}) {	2217	if ($self->{record_replies}) {
1708	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2218	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2219
1709	} else {	2220	} else {
		2221	my $pl = $self->contr;
		2222
		2223	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2224	my $diag = $pl->{npc_dialog};
		2225	$diag->{pl}->ext_reply (
		2226	$diag->{id},
		2227	msgtype => "reply",
		2228	msg => $diag->{pl}->expand_cfpod ($msg),
		2229	add_topics => []
		2230	);
		2231
		2232	} else {
1710	$msg = $npc->name . " says: $msg" if $npc;	2233	$msg = $npc->name . " says: $msg" if $npc;
1711	$self->message ($msg, $flags);	2234	$self->message ($msg, $flags);
		2235	}
1712	}	2236	}
1713	}	2237	}
1714		2238
1715	=item $player_object->may ("access")	2239	=item $player_object->may ("access")
1716		2240
…		…
1764	$self->deactivate_recursive;	2288	$self->deactivate_recursive;
1765		2289
1766	return if UNIVERSAL::isa $self->map, "ext::map_link";	2290	return if UNIVERSAL::isa $self->map, "ext::map_link";
1767		2291
1768	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2292	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1769	if $self->map;	2293	if $self->map && $self->map->{path} ne "{link}";
1770		2294
1771	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2295	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1772	}	2296	}
1773		2297
1774	sub cf::object::player::leave_link {	2298	sub cf::object::player::leave_link {
1775	my ($self, $map, $x, $y) = @_;	2299	my ($self, $map, $x, $y) = @_;
		2300
		2301	return unless $self->contr->active;
1776		2302
1777	my $link_pos = delete $self->{_link_pos};	2303	my $link_pos = delete $self->{_link_pos};
1778		2304
1779	unless ($map) {	2305	unless ($map) {
1780	# restore original map position	2306	# restore original map position
…		…
1798	$map->load;	2324	$map->load;
1799	$map->load_diag;	2325	$map->load_diag;
1800		2326
1801	return unless $self->contr->active;	2327	return unless $self->contr->active;
1802	$self->activate_recursive;	2328	$self->activate_recursive;
		2329
		2330	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1803	$self->enter_map ($map, $x, $y);	2331	$self->enter_map ($map, $x, $y);
1804	}	2332	}
1805		2333
1806	cf::player->attach (	2334	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1807	on_logout => sub {
1808	my ($pl) = @_;
1809		2335
1810	# abort map switching before logout	2336	Moves the player to the given map-path and coordinates by first freezing
1811	if ($pl->ob->{_link_pos}) {	2337	her, loading and preparing them map, calling the provided $check callback
1812	cf::sync_job {	2338	that has to return the map if sucecssful, and then unfreezes the player on
1813	$pl->ob->leave_link	2339	the new (success) or old (failed) map position. In either case, $done will
1814	};	2340	be called at the end of this process.
1815	}
1816	},
1817	on_login => sub {
1818	my ($pl) = @_;
1819		2341
1820	# try to abort aborted map switching on player login :)
1821	# should happen only on crashes
1822	if ($pl->ob->{_link_pos}) {
1823	$pl->ob->enter_link;
1824	(async {
1825	# we need this sleep as the login has a concurrent enter_exit running
1826	# and this sleep increases chances of the player not ending up in scorn
1827	$pl->ob->reply (undef,
1828	"There was an internal problem at your last logout, "
1829	. "the server will try to bring you to your intended destination in a second.",
1830	cf::NDI_RED);
1831	Coro::Timer::sleep 1;
1832	$pl->ob->leave_link;
1833	})->prio (2);
1834	}
1835	},
1836	);
1837
1838	=item $player_object->goto ($path, $x, $y)
1839
1840	=cut	2342	=cut
		2343
		2344	our $GOTOGEN;
1841		2345
1842	sub cf::object::player::goto {	2346	sub cf::object::player::goto {
1843	my ($self, $path, $x, $y) = @_;	2347	my ($self, $path, $x, $y, $check, $done) = @_;
		2348
		2349	# do generation counting so two concurrent goto's will be executed in-order
		2350	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1844		2351
1845	$self->enter_link;	2352	$self->enter_link;
1846		2353
1847	(async {	2354	(async {
1848	my $map = eval {	2355	my $map = eval {
1849	my $map = cf::map::find $path;	2356	my $map = cf::map::find $path;
		2357
		2358	if ($map) {
1850	$map = $map->customise_for ($self) if $map;	2359	$map = $map->customise_for ($self);
		2360	$map = $check->($map) if $check && $map;
		2361	} else {
		2362	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2363	}
		2364
1851	$map	2365	$map
		2366	};
		2367
		2368	if ($@) {
		2369	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2370	LOG llevError | logBacktrace, Carp::longmess $@;
1852	} or	2371	}
1853	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1854		2372
		2373	if ($gen == $self->{_goto_generation}) {
		2374	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2375	$self->leave_link ($map, $x, $y);
		2376	}
		2377
		2378	$done->() if $done;
1856	})->prio (1);	2379	})->prio (1);
1857	}	2380	}
1858		2381
1859	=item $player_object->enter_exit ($exit_object)	2382	=item $player_object->enter_exit ($exit_object)
1860		2383
…		…
1899		2422
1900	$rmp->{random_seed} ||= $exit->random_seed;	2423	$rmp->{random_seed} ||= $exit->random_seed;
1901		2424
1902	my $data = cf::to_json $rmp;	2425	my $data = cf::to_json $rmp;
1903	my $md5 = Digest::MD5::md5_hex $data;	2426	my $md5 = Digest::MD5::md5_hex $data;
1904	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2427	my $meta = "$RANDOMDIR/$md5.meta";
1905		2428
1906	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2429	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1907	aio_write $fh, 0, (length $data), $data, 0;	2430	aio_write $fh, 0, (length $data), $data, 0;
1908	undef $fh;	2431	undef $fh;
1909	aio_rename "$meta~", $meta;	2432	aio_rename "$meta~", $meta;
…		…
1918		2441
1919	return unless $self->type == cf::PLAYER;	2442	return unless $self->type == cf::PLAYER;
1920		2443
1921	if ($exit->slaying eq "/!") {	2444	if ($exit->slaying eq "/!") {
1922	#TODO: this should de-fi-ni-te-ly not be a sync-job	2445	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2446	# the problem is that $exit might not survive long enough
		2447	# so it needs to be done right now, right here
1923	cf::sync_job { prepare_random_map $exit };	2448	cf::sync_job { prepare_random_map $exit };
1924	}	2449	}
1925		2450
1926	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2451	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1927	my $hp = $exit->stats->hp;	2452	my $hp = $exit->stats->hp;
1928	my $sp = $exit->stats->sp;	2453	my $sp = $exit->stats->sp;
1929		2454
1930	$self->enter_link;	2455	$self->enter_link;
		2456
		2457	# if exit is damned, update players death & WoR home-position
		2458	$self->contr->savebed ($slaying, $hp, $sp)
		2459	if $exit->flag (FLAG_DAMNED);
1931		2460
1932	(async {	2461	(async {
1933	$self->deactivate_recursive; # just to be sure	2462	$self->deactivate_recursive; # just to be sure
1934	unless (eval {	2463	unless (eval {
1935	$self->goto ($slaying, $hp, $sp);	2464	$self->goto ($slaying, $hp, $sp);
1936		2465
1937	1;	2466	1;
1938	}) {	2467	}) {
1939	$self->message ("Something went wrong deep within the crossfire server. "	2468	$self->message ("Something went wrong deep within the crossfire server. "
1940	. "I'll try to bring you back to the map you were before. "	2469	. "I'll try to bring you back to the map you were before. "
1941	. "Please report this to the dungeon master!",	2470	. "Please report this to the dungeon master!",
1942	cf::NDI_UNIQUE | cf::NDI_RED);	2471	cf::NDI_UNIQUE | cf::NDI_RED);
1943		2472
1944	warn "ERROR in enter_exit: $@";	2473	warn "ERROR in enter_exit: $@";
1945	$self->leave_link;	2474	$self->leave_link;
1946	}	2475	}
1947	})->prio (1);	2476	})->prio (1);
…		…
1960		2489
1961	sub cf::client::send_drawinfo {	2490	sub cf::client::send_drawinfo {
1962	my ($self, $text, $flags) = @_;	2491	my ($self, $text, $flags) = @_;
1963		2492
1964	utf8::encode $text;	2493	utf8::encode $text;
1965	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2494	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1966	}	2495	}
1967		2496
		2497	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2498
		2499	Send a drawinfo or msg packet to the client, formatting the msg for the
		2500	client if neccessary. C<$type> should be a string identifying the type of
		2501	the message, with C<log> being the default. If C<$color> is negative, suppress
		2502	the message unless the client supports the msg packet.
		2503
		2504	=cut
		2505
		2506	sub cf::client::send_msg {
		2507	my ($self, $channel, $msg, $color, @extra) = @_;
		2508
		2509	$msg = $self->pl->expand_cfpod ($msg);
		2510
		2511	$color &= ~cf::NDI_UNIQUE; # just in case...
		2512
		2513	if (ref $channel) {
		2514	# send meta info to client, if not yet sent
		2515	unless (exists $self->{channel}{$channel->{id}}) {
		2516	$self->{channel}{$channel->{id}} = $channel;
		2517	$self->ext_event (channel_info => %$channel);
		2518	}
		2519
		2520	$channel = $channel->{id};
		2521	}
		2522
		2523	return unless @extra || length $msg;
		2524
		2525	if ($self->can_msg) {
		2526	$self->send_packet ("msg " . $self->{json_coder}->encode ([$color, $channel, $msg, @extra]));
		2527	} else {
		2528	# replace some tags by gcfclient-compatible ones
		2529	for ($msg) {
		2530	1 while
		2531	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2532	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2533	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2534	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2535	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2536	}
		2537
		2538	if ($color >= 0) {
		2539	if (0 && $msg =~ /\[/) {
		2540	$self->send_packet ("drawextinfo $color 4 0 $msg")
		2541	} else {
		2542	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2543	$self->send_packet ("drawinfo $color $msg")
		2544	}
		2545	}
		2546	}
		2547	}
		2548
		2549	=item $client->ext_event ($type, %msg)
		2550
		2551	Sends an ext event to the client.
		2552
		2553	=cut
		2554
		2555	sub cf::client::ext_event($$%) {
		2556	my ($self, $type, %msg) = @_;
		2557
		2558	return unless $self->extcmd;
		2559
		2560	$msg{msgtype} = "event_$type";
		2561	$self->send_packet ("ext " . $self->{json_coder}->encode (\%msg));
		2562	}
1968		2563
1969	=item $success = $client->query ($flags, "text", \&cb)	2564	=item $success = $client->query ($flags, "text", \&cb)
1970		2565
1971	Queues a query to the client, calling the given callback with	2566	Queues a query to the client, calling the given callback with
1972	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2567	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1973	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2568	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1974		2569
1975	Queries can fail, so check the return code. Or don't, as queries will become	2570	Queries can fail, so check the return code. Or don't, as queries will
1976	reliable at some point in the future.	2571	become reliable at some point in the future.
1977		2572
1978	=cut	2573	=cut
1979		2574
1980	sub cf::client::query {	2575	sub cf::client::query {
1981	my ($self, $flags, $text, $cb) = @_;	2576	my ($self, $flags, $text, $cb) = @_;
…		…
1989	utf8::encode $text;	2584	utf8::encode $text;
1990	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2585	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1991		2586
1992	$self->send_packet ($self->{query_queue}[0][0])	2587	$self->send_packet ($self->{query_queue}[0][0])
1993	if @{ $self->{query_queue} } == 1;	2588	if @{ $self->{query_queue} } == 1;
		2589
		2590	1
1994	}	2591	}
1995		2592
1996	cf::client->attach (	2593	cf::client->attach (
		2594	on_connect => sub {
		2595	my ($ns) = @_;
		2596
		2597	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2598	},
1997	on_reply => sub {	2599	on_reply => sub {
1998	my ($ns, $msg) = @_;	2600	my ($ns, $msg) = @_;
1999		2601
2000	# this weird shuffling is so that direct followup queries	2602	# this weird shuffling is so that direct followup queries
2001	# get handled first	2603	# get handled first
2002	my $queue = delete $ns->{query_queue}	2604	my $queue = delete $ns->{query_queue}
2003	or return; # be conservative, not sure how that can happen, but we saw a crash here	2605	or return; # be conservative, not sure how that can happen, but we saw a crash here
2004		2606
2005	(shift @$queue)->[1]->($msg);	2607	(shift @$queue)->[1]->($msg);
		2608	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
2006		2609
2007	push @{ $ns->{query_queue} }, @$queue;	2610	push @{ $ns->{query_queue} }, @$queue;
2008		2611
2009	if (@{ $ns->{query_queue} } == @$queue) {	2612	if (@{ $ns->{query_queue} } == @$queue) {
2010	if (@$queue) {	2613	if (@$queue) {
…		…
2012	} else {	2615	} else {
2013	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2616	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2014	}	2617	}
2015	}	2618	}
2016	},	2619	},
		2620	on_exticmd => sub {
		2621	my ($ns, $buf) = @_;
		2622
		2623	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2624
		2625	if (ref $msg) {
		2626	if (my $cb = $EXTICMD{$msg->{msgtype}}) {
		2627	if (my %reply = $cb->($ns, $msg)) {
		2628	$reply{msgid} = $msg->{msgid};
		2629	$ns->send ("ext " . $ns->{json_coder}->encode (\%reply));
		2630	}
		2631	}
		2632	} else {
		2633	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2634	}
		2635
		2636	cf::override;
		2637	},
2017	);	2638	);
2018		2639
2019	=item $client->async (\&cb)	2640	=item $client->async (\&cb)
2020		2641
2021	Create a new coroutine, running the specified callback. The coroutine will	2642	Create a new coroutine, running the specified callback. The coroutine will
…		…
2068		2689
2069	# here we export the classes and methods available to script code	2690	# here we export the classes and methods available to script code
2070		2691
2071	=pod	2692	=pod
2072		2693
2073	The following fucntions and emthods are available within a safe environment:	2694	The following functions and methods are available within a safe environment:
2074		2695
2075	cf::object contr pay_amount pay_player map	2696	cf::object
		2697	contr pay_amount pay_player map x y force_find force_add
		2698	insert remove
		2699
2076	cf::object::player player	2700	cf::object::player
2077	cf::player peaceful	2701	player
2078	cf::map trigger	2702
		2703	cf::player
		2704	peaceful
		2705
		2706	cf::map
		2707	trigger
2079		2708
2080	=cut	2709	=cut
2081		2710
2082	for (	2711	for (
2083	["cf::object" => qw(contr pay_amount pay_player map)],	2712	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2713	insert remove)],
2084	["cf::object::player" => qw(player)],	2714	["cf::object::player" => qw(player)],
2085	["cf::player" => qw(peaceful)],	2715	["cf::player" => qw(peaceful)],
2086	["cf::map" => qw(trigger)],	2716	["cf::map" => qw(trigger)],
2087	) {	2717	) {
2088	no strict 'refs';	2718	no strict 'refs';
…		…
2159	=back	2789	=back
2160		2790
2161	=cut	2791	=cut
2162		2792
2163	#############################################################################	2793	#############################################################################
		2794	# the server's init and main functions
2164		2795
2165	=head2 EXTENSION DATABASE SUPPORT	2796	sub load_facedata($) {
		2797	my ($path) = @_;
2166		2798
2167	Crossfire maintains a very simple database for extension use. It can	2799	warn "loading facedata from $path\n";
2168	currently store anything that can be serialised using Storable, which
2169	excludes objects.
2170		2800
2171	The parameter C<$family> should best start with the name of the extension	2801	my $facedata;
2172	using it, it should be unique.	2802	0 < aio_load $path, $facedata
		2803	or die "$path: $!";
2173		2804
2174	=over 4	2805	$facedata = Coro::Storable::thaw $facedata;
2175		2806
2176	=item $hashref = cf::db_get $family	2807	$facedata->{version} == 2
		2808	or cf::cleanup "$path: version mismatch, cannot proceed.";
2177		2809
2178	Return a hashref for use by the extension C<$family>, which can be
2179	modified. After modifications, you have to call C<cf::db_dirty> or
2180	C<cf::db_sync>.
2181
2182	=item $value = cf::db_get $family => $key
2183
2184	Returns a single value from the database
2185
2186	=item cf::db_put $family => $hashref
2187
2188	Stores the given family hashref into the database. Updates are delayed, if
2189	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2190
2191	=item cf::db_put $family => $key => $value
2192
2193	Stores the given C<$value> in the family hash. Updates are delayed, if you
2194	want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_dirty
2197
2198	Marks the database as dirty, to be updated at a later time.
2199
2200	=item cf::db_sync
2201
2202	Immediately write the database to disk I<if it is dirty>.
2203
2204	=cut
2205
2206	our $DB;
2207
2208	{
2209	my $path = cf::localdir . "/database.pst";
2210
2211	sub db_load() {
2212	$DB = stat $path ? Storable::retrieve $path : { };
2213	}	2810	{
		2811	my $faces = $facedata->{faceinfo};
2214		2812
2215	my $pid;	2813	while (my ($face, $info) = each %$faces) {
		2814	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2815	cf::face::set_visibility $idx, $info->{visibility};
		2816	cf::face::set_magicmap $idx, $info->{magicmap};
		2817	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2818	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2216		2819
2217	sub db_save() {	2820	cf::cede_to_tick;
2218	waitpid $pid, 0 if $pid;
2219	if (0 == ($pid = fork)) {
2220	$DB->{_meta}{version} = 1;
2221	Storable::nstore $DB, "$path~";
2222	rename "$path~", $path;
2223	cf::_exit 0 if defined $pid;
2224	}
2225	}
2226
2227	my $dirty;
2228
2229	sub db_sync() {
2230	db_save if $dirty;
2231	undef $dirty;
2232	}
2233
2234	my $idle = Event->idle (
2235	reentrant => 0,
2236	min => 10,
2237	max => 20,
2238	repeat => 0,
2239	data => WF_AUTOCANCEL,
2240	cb => \&db_sync,
2241	);
2242
2243	sub db_dirty() {
2244	$dirty = 1;
2245	$idle->start;
2246	}
2247
2248	sub db_get($;$) {
2249	@_ >= 2
2250	? $DB->{$_[0]}{$_[1]}
2251	: ($DB->{$_[0]} ||= { })
2252	}
2253
2254	sub db_put($$;$) {
2255	if (@_ >= 3) {
2256	$DB->{$_[0]}{$_[1]} = $_[2];
2257	} else {
2258	$DB->{$_[0]} = $_[1];
2259	}
2260	db_dirty;
2261	}
2262
2263	cf::global->attach (
2264	prio => 10000,
2265	on_cleanup => sub {
2266	db_sync;
2267	},	2821	}
2268	);
2269	}
2270		2822
2271	#############################################################################	2823	while (my ($face, $info) = each %$faces) {
2272	# the server's main()	2824	next unless $info->{smooth};
		2825	my $idx = cf::face::find $face
		2826	or next;
		2827	if (my $smooth = cf::face::find $info->{smooth}) {
		2828	cf::face::set_smooth $idx, $smooth;
		2829	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2830	} else {
		2831	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2832	}
		2833
		2834	cf::cede_to_tick;
		2835	}
		2836	}
		2837
		2838	{
		2839	my $anims = $facedata->{animinfo};
		2840
		2841	while (my ($anim, $info) = each %$anims) {
		2842	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2843	cf::cede_to_tick;
		2844	}
		2845
		2846	cf::anim::invalidate_all; # d'oh
		2847	}
		2848
		2849	{
		2850	# TODO: for gcfclient pleasure, we should give resources
		2851	# that gcfclient doesn't grok a >10000 face index.
		2852	my $res = $facedata->{resource};
		2853	my $enc = JSON::XS->new->utf8->canonical;
		2854
		2855	while (my ($name, $info) = each %$res) {
		2856	my $meta = $enc->encode ({
		2857	name => $name,
		2858	type => $info->{type},
		2859	copyright => $info->{copyright}, #TODO#
		2860	});
		2861
		2862	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2863
		2864	if ($name =~ /\.jpg$/) {
		2865	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};#d# temp hack
		2866	cf::face::set_data $idx, 1, $info->{data}, $info->{chksum};#d# temp hack
		2867	} else {
		2868	my $data = pack "(w/a*)*", $meta, $info->{data};
		2869	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2870
		2871	cf::face::set_type $idx, 1;
		2872	cf::face::set_data $idx, 0, $data, $chk;
		2873	}
		2874
		2875	cf::cede_to_tick;
		2876	}
		2877	}
		2878
		2879	1
		2880	}
		2881
		2882	sub reload_regions {
		2883	load_resource_file "$MAPDIR/regions"
		2884	or die "unable to load regions file\n";
		2885
		2886	for (cf::region::list) {
		2887	$_->{match} = qr/$_->{match}/
		2888	if exists $_->{match};
		2889	}
		2890	}
		2891
		2892	sub reload_facedata {
		2893	load_facedata "$DATADIR/facedata"
		2894	or die "unable to load facedata\n";
		2895	}
		2896
		2897	sub reload_archetypes {
		2898	load_resource_file "$DATADIR/archetypes"
		2899	or die "unable to load archetypes\n";
		2900	#d# NEED to laod twice to resolve forward references
		2901	# this really needs to be done in an extra post-pass
		2902	# (which needs to be synchronous, so solve it differently)
		2903	load_resource_file "$DATADIR/archetypes"
		2904	or die "unable to load archetypes\n";
		2905	}
		2906
		2907	sub reload_treasures {
		2908	load_resource_file "$DATADIR/treasures"
		2909	or die "unable to load treasurelists\n";
		2910	}
		2911
		2912	sub reload_resources {
		2913	warn "reloading resource files...\n";
		2914
		2915	reload_regions;
		2916	reload_facedata;
		2917	#reload_archetypes;#d#
		2918	reload_archetypes;
		2919	reload_treasures;
		2920
		2921	warn "finished reloading resource files\n";
		2922	}
		2923
		2924	sub init {
		2925	reload_resources;
		2926	}
2273		2927
2274	sub cfg_load {	2928	sub cfg_load {
2275	open my $fh, "<:utf8", cf::confdir . "/config"	2929	open my $fh, "<:utf8", "$CONFDIR/config"
2276	or return;	2930	or return;
2277		2931
2278	local $/;	2932	local $/;
2279	*CFG = YAML::Syck::Load <$fh>;	2933	*CFG = YAML::Syck::Load <$fh>;
2280		2934
…		…
2300	Event::one_event;	2954	Event::one_event;
2301	})->prio (Coro::PRIO_MAX);	2955	})->prio (Coro::PRIO_MAX);
2302	};	2956	};
2303		2957
2304	cfg_load;	2958	cfg_load;
2305	db_load;	2959	db_init;
2306	load_extensions;	2960	load_extensions;
2307		2961
2308	$TICK_WATCHER->start;	2962	$TICK_WATCHER->start;
2309	Event::loop;	2963	Event::loop;
2310	}	2964	}
…		…
2325	},	2979	},
2326	);	2980	);
2327	}	2981	}
2328	}	2982	}
2329		2983
		2984	sub write_runtime {
		2985	my $runtime = "$LOCALDIR/runtime";
		2986
		2987	# first touch the runtime file to show we are still running:
		2988	# the fsync below can take a very very long time.
		2989
		2990	IO::AIO::aio_utime $runtime, undef, undef;
		2991
		2992	my $guard = cf::lock_acquire "write_runtime";
		2993
		2994	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		2995	or return;
		2996
		2997	my $value = $cf::RUNTIME + 90 + 10;
		2998	# 10 is the runtime save interval, for a monotonic clock
		2999	# 60 allows for the watchdog to kill the server.
		3000
		3001	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3002	and return;
		3003
		3004	# always fsync - this file is important
		3005	aio_fsync $fh
		3006	and return;
		3007
		3008	# touch it again to show we are up-to-date
		3009	aio_utime $fh, undef, undef;
		3010
		3011	close $fh
		3012	or return;
		3013
		3014	aio_rename "$runtime~", $runtime
		3015	and return;
		3016
		3017	warn "runtime file written.\n";
		3018
		3019	1
		3020	}
		3021
2330	sub emergency_save() {	3022	sub emergency_save() {
2331	my $freeze_guard = cf::freeze_mainloop;	3023	my $freeze_guard = cf::freeze_mainloop;
2332		3024
2333	warn "enter emergency perl save\n";	3025	warn "enter emergency perl save\n";
2334		3026
…		…
2349	my $map = $cf::MAP{$path} or next;	3041	my $map = $cf::MAP{$path} or next;
2350	$map->valid or next;	3042	$map->valid or next;
2351	$map->save;	3043	$map->save;
2352	}	3044	}
2353	warn "end emergency map save\n";	3045	warn "end emergency map save\n";
		3046
		3047	warn "begin emergency database checkpoint\n";
		3048	BDB::db_env_txn_checkpoint $DB_ENV;
		3049	warn "end emergency database checkpoint\n";
2354	};	3050	};
2355		3051
2356	warn "leave emergency perl save\n";	3052	warn "leave emergency perl save\n";
2357	}	3053	}
2358		3054
		3055	sub post_cleanup {
		3056	my ($make_core) = @_;
		3057
		3058	warn Carp::longmess "post_cleanup backtrace"
		3059	if $make_core;
		3060	}
		3061
2359	sub reload() {	3062	sub do_reload_perl() {
2360	# can/must only be called in main	3063	# can/must only be called in main
2361	if ($Coro::current != $Coro::main) {	3064	if ($Coro::current != $Coro::main) {
2362	warn "can only reload from main coroutine";	3065	warn "can only reload from main coroutine";
2363	return;	3066	return;
2364	}	3067	}
2365		3068
2366	warn "reloading...";	3069	warn "reloading...";
2367		3070
2368	warn "cancelling server ticker";	3071	warn "entering sync_job";
2369	$TICK_WATCHER->cancel;
2370		3072
		3073	cf::sync_job {
		3074	cf::write_runtime; # external watchdog should not bark
2371	cf::emergency_save;	3075	cf::emergency_save;
		3076	cf::write_runtime; # external watchdog should not bark
2372		3077
2373	eval {	3078	warn "syncing database to disk";
		3079	BDB::db_env_txn_checkpoint $DB_ENV;
		3080
2374	# if anything goes wrong in here, we should simply crash as we already saved	3081	# if anything goes wrong in here, we should simply crash as we already saved
2375
2376	warn "syncing database to disk";
2377	cf::db_sync;
2378		3082
2379	warn "cancelling all WF_AUTOCANCEL watchers";	3083	warn "cancelling all WF_AUTOCANCEL watchers";
2380	for (Event::all_watchers) {	3084	for (Event::all_watchers) {
2381	$_->cancel if $_->data & WF_AUTOCANCEL;	3085	$_->cancel if $_->data & WF_AUTOCANCEL;
2382	}	3086	}
2383		3087
2384	warn "flushing outstanding aio requests";	3088	warn "flushing outstanding aio requests";
2385	for (;;) {	3089	for (;;) {
		3090	BDB::flush;
2386	IO::AIO::flush;	3091	IO::AIO::flush;
2387	Coro::cede;	3092	Coro::cede;
2388	last unless IO::AIO::nreqs;	3093	last unless IO::AIO::nreqs || BDB::nreqs;
2389	warn "iterate...";	3094	warn "iterate...";
2390	}	3095	}
		3096
		3097	++$RELOAD;
2391		3098
2392	warn "cancelling all extension coros";	3099	warn "cancelling all extension coros";
2393	$_->cancel for values %EXT_CORO;	3100	$_->cancel for values %EXT_CORO;
2394	%EXT_CORO = ();	3101	%EXT_CORO = ();
2395		3102
2396	warn "removing commands";	3103	warn "removing commands";
2397	%COMMAND = ();	3104	%COMMAND = ();
2398		3105
2399	warn "removing ext commands";	3106	warn "removing ext/exti commands";
2400	%EXTCMD = ();	3107	%EXTCMD = ();
		3108	%EXTICMD = ();
2401		3109
2402	warn "unloading/nuking all extensions";	3110	warn "unloading/nuking all extensions";
2403	for my $pkg (@EXTS) {	3111	for my $pkg (@EXTS) {
2404	warn "... unloading $pkg";	3112	warn "... unloading $pkg";
2405		3113
…		…
2435	Symbol::delete_package "safe::$_"	3143	Symbol::delete_package "safe::$_"
2436	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3144	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2437		3145
2438	warn "unloading cf.pm \"a bit\"";	3146	warn "unloading cf.pm \"a bit\"";
2439	delete $INC{"cf.pm"};	3147	delete $INC{"cf.pm"};
		3148	delete $INC{"cf/pod.pm"};
2440		3149
2441	# don't, removes xs symbols, too,	3150	# don't, removes xs symbols, too,
2442	# and global variables created in xs	3151	# and global variables created in xs
2443	#Symbol::delete_package __PACKAGE__;	3152	#Symbol::delete_package __PACKAGE__;
2444		3153
…		…
2448	require cf;	3157	require cf;
2449	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3158	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2450		3159
2451	warn "loading config and database again";	3160	warn "loading config and database again";
2452	cf::cfg_load;	3161	cf::cfg_load;
2453	cf::db_load;
2454		3162
2455	warn "loading extensions";	3163	warn "loading extensions";
2456	cf::load_extensions;	3164	cf::load_extensions;
2457		3165
2458	warn "reattaching attachments to objects/players";	3166	warn "reattaching attachments to objects/players";
2459	_global_reattach;	3167	_global_reattach; # objects, sockets
2460	warn "reattaching attachments to maps";	3168	warn "reattaching attachments to maps";
2461	reattach $_ for values %MAP;	3169	reattach $_ for values %MAP;
		3170	warn "reattaching attachments to players";
		3171	reattach $_ for values %PLAYER;
2462		3172
2463	warn "restarting server ticker";	3173	warn "leaving sync_job";
2464		3174
2465	$TICK_WATCHER->start;	3175	1
2466	};	3176	} or do {
2467
2468	if ($@) {
2469	warn $@;	3177	warn $@;
2470	warn "error while reloading, exiting.";	3178	warn "error while reloading, exiting.";
2471	exit 1;	3179	exit 1;
2472	}	3180	};
2473		3181
2474	warn "reloaded";	3182	warn "reloaded";
2475	};	3183	};
2476		3184
2477	our $RELOAD_WATCHER; # used only during reload	3185	our $RELOAD_WATCHER; # used only during reload
2478		3186
		3187	sub reload_perl() {
		3188	# doing reload synchronously and two reloads happen back-to-back,
		3189	# coro crashes during coro_state_free->destroy here.
		3190
		3191	$RELOAD_WATCHER ||= Event->timer (
		3192	reentrant => 0,
		3193	after => 0,
		3194	data => WF_AUTOCANCEL,
		3195	cb => sub {
		3196	do_reload_perl;
		3197	undef $RELOAD_WATCHER;
		3198	},
		3199	);
		3200	}
		3201
2479	register_command "reload" => sub {	3202	register_command "reload" => sub {
2480	my ($who, $arg) = @_;	3203	my ($who, $arg) = @_;
2481		3204
2482	if ($who->flag (FLAG_WIZ)) {	3205	if ($who->flag (FLAG_WIZ)) {
2483	$who->message ("reloading server.");	3206	$who->message ("reloading server.");
2484		3207	async { reload_perl };
2485	# doing reload synchronously and two reloads happen back-to-back,
2486	# coro crashes during coro_state_free->destroy here.
2487
2488	$RELOAD_WATCHER ||= Event->timer (
2489	reentrant => 0,
2490	after => 0,
2491	data => WF_AUTOCANCEL,
2492	cb => sub {
2493	reload;
2494	undef $RELOAD_WATCHER;
2495	},
2496	);
2497	}	3208	}
2498	};	3209	};
2499		3210
2500	unshift @INC, $LIBDIR;	3211	unshift @INC, $LIBDIR;
2501		3212
2502	my $bug_warning = 0;	3213	my $bug_warning = 0;
2503		3214
		3215	our @WAIT_FOR_TICK;
		3216	our @WAIT_FOR_TICK_BEGIN;
		3217
		3218	sub wait_for_tick {
		3219	return unless $TICK_WATCHER->is_active;
		3220	return if $Coro::current == $Coro::main;
		3221
		3222	my $signal = new Coro::Signal;
		3223	push @WAIT_FOR_TICK, $signal;
		3224	$signal->wait;
		3225	}
		3226
		3227	sub wait_for_tick_begin {
		3228	return unless $TICK_WATCHER->is_active;
		3229	return if $Coro::current == $Coro::main;
		3230
		3231	my $signal = new Coro::Signal;
		3232	push @WAIT_FOR_TICK_BEGIN, $signal;
		3233	$signal->wait;
		3234	}
		3235
		3236	my $min = 1e6;#d#
		3237	my $avg = 10;
2504	$TICK_WATCHER = Event->timer (	3238	$TICK_WATCHER = Event->timer (
2505	reentrant => 0,	3239	reentrant => 0,
2506	parked => 1,	3240	parked => 1,
2507	prio => 0,	3241	prio => 0,
2508	at => $NEXT_TICK || $TICK,	3242	at => $NEXT_TICK || $TICK,
…		…
2512	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3246	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2513	unless ++$bug_warning > 10;	3247	unless ++$bug_warning > 10;
2514	return;	3248	return;
2515	}	3249	}
2516		3250
2517	$NOW = Event::time;	3251	$NOW = $tick_start = Event::time;
2518		3252
2519	cf::server_tick; # one server iteration	3253	cf::server_tick; # one server iteration
		3254
		3255	0 && sync_job {#d#
		3256	for(1..10) {
		3257	my $t = Event::time;
		3258	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3259	or die;
		3260
		3261	$map->width (50);
		3262	$map->height (50);
		3263	$map->alloc;
		3264	$map->_load_objects ("/tmp/x.map", 1);
		3265	my $t = Event::time - $t;
		3266
		3267	#next unless $t < 0.0013;#d#
		3268	if ($t < $min) {
		3269	$min = $t;
		3270	}
		3271	$avg = $avg * 0.99 + $t * 0.01;
		3272	}
		3273	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3274	exit 0;
		3275	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3276	};
		3277
2520	$RUNTIME += $TICK;	3278	$RUNTIME += $TICK;
2521	$NEXT_TICK += $TICK;	3279	$NEXT_TICK += $TICK;
2522		3280
2523	$WAIT_FOR_TICK->broadcast;	3281	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2524	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3282	$NEXT_RUNTIME_WRITE = $NOW + 10;
2525		3283	Coro::async_pool {
2526	Event::sweep;	3284	write_runtime
2527	Coro::cede_notself;	3285	or warn "ERROR: unable to write runtime file: $!";
		3286	};
2528		3287	}
		3288
2529	# my $AFTER = Event::time;	3289	# my $AFTER = Event::time;
2530	# warn $AFTER - $NOW;#d#	3290	# warn $AFTER - $NOW;#d#
2531		3291
		3292	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3293	$sig->send;
		3294	}
		3295	while (my $sig = shift @WAIT_FOR_TICK) {
		3296	$sig->send;
		3297	}
		3298
		3299	$NOW = Event::time;
		3300
2532	# if we are delayed by four ticks or more, skip them all	3301	# if we are delayed by four ticks or more, skip them all
2533	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3302	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2534		3303
2535	$TICK_WATCHER->at ($NEXT_TICK);	3304	$TICK_WATCHER->at ($NEXT_TICK);
2536	$TICK_WATCHER->start;	3305	$TICK_WATCHER->start;
		3306
		3307	$LOAD = ($NOW - $tick_start) / $TICK;
		3308	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3309
		3310	_post_tick;
		3311
		3312
2537	},	3313	},
2538	);	3314	);
2539		3315
		3316	{
		3317	BDB::max_poll_time $TICK * 0.1;
		3318	$BDB_POLL_WATCHER = Event->io (
		3319	reentrant => 0,
		3320	fd => BDB::poll_fileno,
		3321	poll => 'r',
		3322	prio => 0,
		3323	data => WF_AUTOCANCEL,
		3324	cb => \&BDB::poll_cb,
		3325	);
		3326	BDB::min_parallel 8;
		3327
		3328	BDB::set_sync_prepare {
		3329	my $status;
		3330	my $current = $Coro::current;
		3331	(
		3332	sub {
		3333	$status = $!;
		3334	$current->ready; undef $current;
		3335	},
		3336	sub {
		3337	Coro::schedule while defined $current;
		3338	$! = $status;
		3339	},
		3340	)
		3341	};
		3342
		3343	unless ($DB_ENV) {
		3344	$DB_ENV = BDB::db_env_create;
		3345
		3346	cf::sync_job {
		3347	eval {
		3348	BDB::db_env_open
		3349	$DB_ENV,
		3350	$BDBDIR,
		3351	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3352	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3353	0666;
		3354
		3355	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3356
		3357	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3358	$DB_ENV->set_lk_detect;
		3359	};
		3360
		3361	cf::cleanup "db_env_open(db): $@" if $@;
		3362	};
		3363	}
		3364	}
		3365
		3366	{
		3367	IO::AIO::min_parallel 8;
		3368
		3369	undef $Coro::AIO::WATCHER;
2540	IO::AIO::max_poll_time $TICK * 0.1;	3370	IO::AIO::max_poll_time $TICK * 0.1;
2541
2542	undef $Coro::AIO::WATCHER;
2543	$AIO_POLL_WATCHER = Event->io (	3371	$AIO_POLL_WATCHER = Event->io (
2544	reentrant => 0,	3372	reentrant => 0,
		3373	data => WF_AUTOCANCEL,
2545	fd => IO::AIO::poll_fileno,	3374	fd => IO::AIO::poll_fileno,
2546	poll => 'r',	3375	poll => 'r',
2547	prio => 6,	3376	prio => 6,
2548	data => WF_AUTOCANCEL,
2549	cb => \&IO::AIO::poll_cb,	3377	cb => \&IO::AIO::poll_cb,
2550	);	3378	);
		3379	}
2551		3380
2552	$WRITE_RUNTIME_WATCHER = Event->timer (	3381	my $_log_backtrace;
2553	reentrant => 0,	3382
2554	data => WF_AUTOCANCEL,	3383	sub _log_backtrace {
2555	after => 1,	3384	my ($msg, @addr) = @_;
2556	interval => 10,	3385
2557	prio => 6, # keep it lowest so it acts like a watchdog	3386	$msg =~ s/\n//;
2558	cb => Coro::unblock_sub {	3387
2559	write_runtime	3388	# limit the # of concurrent backtraces
2560	or warn "ERROR: unable to write runtime file: $!";	3389	if ($_log_backtrace < 2) {
		3390	++$_log_backtrace;
		3391	async {
		3392	my @bt = fork_call {
		3393	@addr = map { sprintf "%x", $_ } @addr;
		3394	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3395	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3396	or die "addr2line: $!";
		3397
		3398	my @funcs;
		3399	my @res = <$fh>;
		3400	chomp for @res;
		3401	while (@res) {
		3402	my ($func, $line) = splice @res, 0, 2, ();
		3403	push @funcs, "[$func] $line";
		3404	}
		3405
		3406	@funcs
		3407	};
		3408
		3409	LOG llevInfo, "[ABT] $msg\n";
		3410	LOG llevInfo, "[ABT] $_\n" for @bt;
		3411	--$_log_backtrace;
		3412	};
		3413	} else {
		3414	LOG llevInfo, "[ABT] $msg\n";
		3415	LOG llevInfo, "[ABT] [suppressed]\n";
2561	},	3416	}
2562	);	3417	}
		3418
		3419	# load additional modules
		3420	use cf::pod;
2563		3421
2564	END { cf::emergency_save }	3422	END { cf::emergency_save }
2565		3423
2566	1	3424	1
2567		3425

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