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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.147 by root, Mon Jan 8 12:23:33 2007 UTC vs.
Revision 1.266 by root, Fri May 18 01:01:02 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.61 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
19		24
		25	use BDB ();
		26	use Data::Dumper;
20	use Digest::MD5;	27	use Digest::MD5;
21	use Fcntl;	28	use Fcntl;
		29	use YAML::Syck ();
22	use IO::AIO 2.32 ();	30	use IO::AIO 2.32 ();
23	use YAML::Syck ();
24	use Time::HiRes;	31	use Time::HiRes;
		32	use Compress::LZF;
25		33
		34	# configure various modules to our taste
		35	#
		36	$Storable::canonical = 1; # reduce rsync transfers
		37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		39
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	40	$Event::Eval = 1; # no idea why this is required, but it is
27		41
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	43	$YAML::Syck::ImplicitUnicode = 1;
30		44
31	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		46
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		48
35	our %COMMAND = ();	49	our %COMMAND = ();
36	our %COMMAND_TIME = ();	50	our %COMMAND_TIME = ();
		51
		52	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	53	our %EXTCMD = ();
		54	our %EXT_CORO = (); # coroutines bound to extensions
		55	our %EXT_MAP = (); # pluggable maps
38		56
		57	our $RELOAD; # number of reloads so far
39	our @EVENT;	58	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		59
42	our $TICK = MAX_TIME * 1e-6;	60	our $CONFDIR = confdir;
		61	our $DATADIR = datadir;
		62	our $LIBDIR = "$DATADIR/ext";
		63	our $PODDIR = "$DATADIR/pod";
		64	our $MAPDIR = "$DATADIR/" . mapdir;
		65	our $LOCALDIR = localdir;
		66	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		69	our $RANDOMDIR = "$LOCALDIR/random";
		70	our $BDBDIR = "$LOCALDIR/db";
		71
		72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	73	our $TICK_WATCHER;
		74	our $AIO_POLL_WATCHER;
		75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	76	our $NEXT_TICK;
45	our $NOW;	77	our $NOW;
		78	our $USE_FSYNC = 1; # use fsync to write maps - default off
		79
		80	our $BDB_POLL_WATCHER;
		81	our $DB_ENV;
46		82
47	our %CFG;	83	our %CFG;
48		84
49	our $UPTIME; $UPTIME ||= time;	85	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	86	our $RUNTIME;
51		87
52	our %PLAYER; # all users	88	our %PLAYER; # all users
53	our %MAP; # all maps	89	our %MAP; # all maps
54	our $LINK_MAP; # the special {link} map	90	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	91
56	our %EXT_CORO; # coroutines bound to extensions	92	# used to convert map paths into valid unix filenames by replacing / by ∕
		93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		94
		95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		96	our $LOADAVG; # same thing, but with alpha-smoothing
		97	our $tick_start; # for load detecting purposes
57		98
58	binmode STDOUT;	99	binmode STDOUT;
59	binmode STDERR;	100	binmode STDERR;
60		101
61	# read virtual server time, if available	102	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	104	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	105	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	106	$RUNTIME = <$fh> + 0.;
66	}	107	}
67		108
68	mkdir cf::localdir;	109	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		111
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	112	our $EMERGENCY_POSITION;
		113
		114	sub cf::map::normalise;
77		115
78	#############################################################################	116	#############################################################################
79		117
80	=head2 GLOBAL VARIABLES	118	=head2 GLOBAL VARIABLES
81		119
…		…
88	=item $cf::RUNTIME	126	=item $cf::RUNTIME
89		127
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	128	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	129	every server tick.
92		130
93	=item $cf::LIBDIR	131	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		132	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		133	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		134
95	The perl library directory, where extensions and cf-specific modules can	135	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	136	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		137	unique-items directory, player file directory, random maps directory and
		138	database environment.
97		139
98	=item $cf::NOW	140	=item $cf::NOW
99		141
100	The time of the last (current) server tick.	142	The time of the last (current) server tick.
101		143
102	=item $cf::TICK	144	=item $cf::TICK
103		145
104	The interval between server ticks, in seconds.	146	The interval between server ticks, in seconds.
		147
		148	=item $cf::LOADAVG
		149
		150	The current CPU load on the server (alpha-smoothed), as a value between 0
		151	(none) and 1 (overloaded), indicating how much time is spent on processing
		152	objects per tick. Healthy values are < 0.5.
		153
		154	=item $cf::LOAD
		155
		156	The raw value load value from the last tick.
105		157
106	=item %cf::CFG	158	=item %cf::CFG
107		159
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	160	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	161	from wherever your confdir points to.
		162
		163	=item cf::wait_for_tick, cf::wait_for_tick_begin
		164
		165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		166	returns directly I<after> the tick processing (and consequently, can only wake one process
		167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
110		168
111	=back	169	=back
112		170
113	=cut	171	=cut
114		172
115	BEGIN {	173	BEGIN {
116	*CORE::GLOBAL::warn = sub {	174	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	175	my $msg = join "", @_;
118	utf8::encode $msg;
119		176
120	$msg .= "\n"	177	$msg .= "\n"
121	unless $msg =~ /\n$/;	178	unless $msg =~ /\n$/;
122		179
		180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		181
		182	utf8::encode $msg;
123	LOG llevError, $msg;	183	LOG llevError, $msg;
124	};	184	};
125	}	185	}
126		186
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
146		206
147	$Event::DIED = sub {	207	$Event::DIED = sub {
148	warn "error in event callback: @_";	208	warn "error in event callback: @_";
149	};	209	};
150		210
151	my %ext_pkg;
152	my @exts;
153	my @hook;
154
155	=head2 UTILITY FUNCTIONS	211	=head2 UTILITY FUNCTIONS
156		212
157	=over 4	213	=over 4
158		214
159	=cut	215	=item dumpval $ref
160		216
		217	=cut
		218
		219	sub dumpval {
		220	eval {
		221	local $SIG{__DIE__};
		222	my $d;
		223	if (1) {
		224	$d = new Data::Dumper([$_[0]], ["*var"]);
		225	$d->Terse(1);
		226	$d->Indent(2);
		227	$d->Quotekeys(0);
		228	$d->Useqq(1);
		229	#$d->Bless(...);
		230	$d->Seen($_[1]) if @_ > 1;
		231	$d = $d->Dump();
		232	}
		233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		234	$d
		235	} || "[unable to dump $_[0]: '$@']";
		236	}
		237
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
162		239
163	=item $ref = cf::from_json $json	240	=item $ref = cf::from_json $json
164		241
165	Converts a JSON string into the corresponding perl data structure.	242	Converts a JSON string into the corresponding perl data structure.
166		243
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	244	=item $json = cf::to_json $ref
175		245
176	Converts a perl data structure into its JSON representation.	246	Converts a perl data structure into its JSON representation.
177
178	=cut
179
180	sub to_json($) {
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		247
185	=item cf::lock_wait $string	248	=item cf::lock_wait $string
186		249
187	Wait until the given lock is available. See cf::lock_acquire.	250	Wait until the given lock is available. See cf::lock_acquire.
188		251
…		…
194	returned.	257	returned.
195		258
196	Lock names should begin with a unique identifier (for example, cf::map::find	259	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	260	uses map_find and cf::map::load uses map_load).
198		261
		262	=item $locked = cf::lock_active $string
		263
		264	Return true if the lock is currently active, i.e. somebody has locked it.
		265
199	=cut	266	=cut
200		267
201	our %LOCK;	268	our %LOCK;
202		269
203	sub lock_wait($) {	270	sub lock_wait($) {
…		…
222	# wake up all waiters, to be on the safe side	289	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	290	$_->ready for @{ delete $LOCK{$key} };
224	}	291	}
225	}	292	}
226		293
		294	sub lock_active($) {
		295	my ($key) = @_;
		296
		297	! ! $LOCK{$key}
		298	}
		299
227	sub freeze_mainloop {	300	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	301	return unless $TICK_WATCHER->is_active;
229		302
230	my $guard = Coro::guard { $TICK_WATCHER->start };	303	my $guard = Coro::guard {
		304	$TICK_WATCHER->start;
		305	};
231	$TICK_WATCHER->stop;	306	$TICK_WATCHER->stop;
232	$guard	307	$guard
233	}	308	}
234		309
235	=item cf::async { BLOCK }	310	=item cf::async { BLOCK }
…		…
257		332
258	sub sync_job(&) {	333	sub sync_job(&) {
259	my ($job) = @_;	334	my ($job) = @_;
260		335
261	if ($Coro::current == $Coro::main) {	336	if ($Coro::current == $Coro::main) {
		337	my $time = Event::time;
		338
262	# this is the main coro, too bad, we have to block	339	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	340	# till the operation succeeds, freezing the server :/
264		341
265	# TODO: use suspend/resume instead	342	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	343	# (but this is cancel-safe)
…		…
277		354
278	while ($busy) {	355	while ($busy) {
279	Coro::cede or Event::one_event;	356	Coro::cede or Event::one_event;
280	}	357	}
281		358
		359	$time = Event::time - $time;
		360
		361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		363
		364	$tick_start += $time; # do not account sync jobs to server load
		365
282	wantarray ? @res : $res[0]	366	wantarray ? @res : $res[0]
283	} else {	367	} else {
284	# we are in another coroutine, how wonderful, everything just works	368	# we are in another coroutine, how wonderful, everything just works
285		369
286	$job->()	370	$job->()
287	}	371	}
288	}	372	}
289		373
290	=item $coro = cf::async_ext { BLOCK }	374	=item $coro = cf::async_ext { BLOCK }
291		375
292	Like async, but this coro is automcatially being canceled when the	376	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	377	extension calling this is being unloaded.
294		378
295	=cut	379	=cut
296		380
297	sub async_ext(&) {	381	sub async_ext(&) {
…		…
306		390
307	$coro	391	$coro
308	}	392	}
309		393
310	sub write_runtime {	394	sub write_runtime {
311	my $runtime = cf::localdir . "/runtime";	395	my $runtime = "$LOCALDIR/runtime";
		396
		397	# first touch the runtime file to show we are still running:
		398	# the fsync below can take a very very long time.
		399
		400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {
		401	utime undef, undef, $fh;
		402	}
		403
		404	my $guard = cf::lock_acquire "write_runtime";
312		405
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
314	or return;	407	or return;
315		408
		409	my $value = $cf::RUNTIME + 90 + 10;
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	410	# 10 is the runtime save interval, for a monotonic clock
		411	# 60 allows for the watchdog to kill the server.
		412
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0	413	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;	414	and return;
319		415
		416	# always fsync - this file is important
320	aio_fsync $fh	417	aio_fsync $fh
321	and return;	418	and return;
322		419
		420	# touch it again to show we are up-to-date
		421	utime undef, undef, $fh;
		422
323	close $fh	423	close $fh
324	or return;	424	or return;
325		425
326	aio_rename "$runtime~", $runtime	426	aio_rename "$runtime~", $runtime
327	and return;	427	and return;
328		428
		429	warn "runtime file written.\n";#d#
		430
329	1	431	1
330	}	432	}
331		433
		434	=item cf::datalog type => key => value, ...
		435
		436	Log a datalog packet of the given type with the given key-value pairs.
		437
		438	=cut
		439
		440	sub datalog($@) {
		441	my ($type, %kv) = @_;
		442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
		443	}
		444
332	=back	445	=back
333		446
334	=cut	447	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		448
456	#############################################################################	449	#############################################################################
457		450
458	=head2 ATTACHABLE OBJECTS	451	=head2 ATTACHABLE OBJECTS
459		452
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	578	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	579	our @CB_MAP = ();
587		580
588	my %attachment;	581	my %attachment;
589		582
		583	sub cf::attachable::thawer_merge {
		584	# simply override everything except _meta
		585	local $_[0]{_meta};
		586	%{$_[0]} = %{$_[1]};
		587	}
		588
590	sub _attach_cb($$$$) {	589	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	590	my ($registry, $event, $prio, $cb) = @_;
592		591
593	use sort 'stable';	592	use sort 'stable';
594		593
…		…
765	# object support	764	# object support
766		765
767	sub reattach {	766	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	767	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	768	my ($obj) = @_;
		769
		770	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		771
771	my $registry = $obj->registry;	772	my $registry = $obj->registry;
772		773
773	@$registry = ();	774	@$registry = ();
774		775
…		…
821	$filename, length $$rdata, scalar @$objs;	822	$filename, length $$rdata, scalar @$objs;
822		823
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	824	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	825	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	826	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	827	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	828	close $fh;
828		829
829	if (@$objs) {	830	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	831	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	832	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	833	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	834	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	835	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	836	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	837	aio_rename "$filename.pst~", "$filename.pst";
837	}	838	}
838	} else {	839	} else {
839	aio_unlink "$filename.pst";	840	aio_unlink "$filename.pst";
…		…
906	=cut	907	=cut
907		908
908	sub register_extcmd {	909	sub register_extcmd {
909	my ($name, $cb) = @_;	910	my ($name, $cb) = @_;
910		911
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	912	$EXTCMD{$name} = $cb;
915	}	913	}
916		914
917	cf::player->attach (	915	cf::player->attach (
918	on_command => sub {	916	on_command => sub {
919	my ($pl, $name, $params) = @_;	917	my ($pl, $name, $params) = @_;
…		…
932		930
933	my $msg = eval { from_json $buf };	931	my $msg = eval { from_json $buf };
934		932
935	if (ref $msg) {	933	if (ref $msg) {
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	934	if (my $cb = $EXTCMD{$msg->{msgtype}}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	935	if (my %reply = $cb->($pl, $msg)) {
938	$pl->ext_reply ($msg->{msgid}, %reply);	936	$pl->ext_reply ($msg->{msgid}, %reply);
939	}	937	}
940	}	938	}
941	} else {	939	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	940	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
…		…
944		942
945	cf::override;	943	cf::override;
946	},	944	},
947	);	945	);
948		946
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	947	sub load_extension {
956	my ($path) = @_;	948	my ($path) = @_;
957		949
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	950	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;	951	my $base = $1;
960	my $pkg = $1;	952	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;	953	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";	954	$pkg = "ext::$pkg";
963		955
964	warn "loading '$path' into '$pkg'\n";	956	warn "... loading '$path' into '$pkg'\n";
965		957
966	open my $fh, "<:utf8", $path	958	open my $fh, "<:utf8", $path
967	or die "$path: $!";	959	or die "$path: $!";
968		960
969	my $source =	961	my $source =
970	"package $pkg; use strict; use utf8;\n"	962	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"	963	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })	964	. (do { local $/; <$fh> })
973	. "\n};\n1";	965	. "\n};\n1";
974		966
975	eval $source	967	unless (eval $source) {
976	or die $@ ? "$path: $@\n"	968	my $msg = $@ ? "$path: $@\n"
977	: "extension disabled.\n";	969	: "extension disabled.\n";
978		970	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
979	push @exts, $pkg;	971	warn $@;
980	$ext_pkg{$base} = $pkg;	972	warn "mandatory extension failed to load, exiting.\n";
981		973	exit 1;
982	# no strict 'refs';	974	}
983	# @{"$pkg\::ISA"} = ext::;	975	die $@;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }	976	}
998		977
999	# remove commands	978	push @EXTS, $pkg;
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	979	}
1024		980
1025	sub load_extensions {	981	sub load_extensions {
1026	for my $ext (<$LIBDIR/*.ext>) {	982	for my $ext (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	983	next unless -r $ext;
…		…
1031	} or warn "$ext not loaded: $@";	987	} or warn "$ext not loaded: $@";
1032	}	988	}
1033	}	989	}
1034		990
1035	#############################################################################	991	#############################################################################
1036	# load/save/clean perl data associated with a map
1037
1038	*cf::mapsupport::on_clean = sub {
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		992
1073	=head2 CORE EXTENSIONS	993	=head2 CORE EXTENSIONS
1074		994
1075	Functions and methods that extend core crossfire objects.	995	Functions and methods that extend core crossfire objects.
1076		996
1077	=cut	997	=cut
1078		998
1079	package cf::player;	999	package cf::player;
1080		1000
		1001	use Coro::AIO;
		1002
1081	=head3 cf::player	1003	=head3 cf::player
1082		1004
1083	=over 4	1005	=over 4
1084		1006
1085	=item cf::player::find $login	1007	=item cf::player::find $login
…		…
1087	Returns the given player object, loading it if necessary (might block).	1009	Returns the given player object, loading it if necessary (might block).
1088		1010
1089	=cut	1011	=cut
1090		1012
1091	sub playerdir($) {	1013	sub playerdir($) {
1092	cf::localdir	1014	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1015	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1016	}
1098		1017
1099	sub path($) {	1018	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1019	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1020
1102	(playerdir $login) . "/$login.pl"	1021	(playerdir $login) . "/playerdata"
1103	}	1022	}
1104		1023
1105	sub find_active($) {	1024	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1025	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1026	and $cf::PLAYER{$_[0]}->active
…		…
1110		1029
1111	sub exists($) {	1030	sub exists($) {
1112	my ($login) = @_;	1031	my ($login) = @_;
1113		1032
1114	$cf::PLAYER{$login}	1033	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1034	or cf::sync_job { !aio_stat path $login }
1116	}	1035	}
1117		1036
1118	sub find($) {	1037	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1038	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1039	my $login = $_[0];
1121		1040
1122	my $guard = cf::lock_acquire "user_find:$login";	1041	my $guard = cf::lock_acquire "user_find:$login";
1123		1042
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1043	$cf::PLAYER{$_[0]} || do {
		1044	# rename old playerfiles to new ones
		1045	#TODO: remove when no longer required
		1046	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1047	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1048	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1049	aio_unlink +(playerdir $login) . "/$login.pl";
		1050
		1051	my $pl = load_pl path $login
		1052	or return;
		1053	$cf::PLAYER{$login} = $pl
		1054	}
1125	};	1055	}
1126	}	1056	}
1127		1057
1128	sub save($) {	1058	sub save($) {
1129	my ($pl) = @_;	1059	my ($pl) = @_;
1130		1060
…		…
1133	my $path = path $pl;	1063	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1064	my $guard = cf::lock_acquire "user_save:$path";
1135		1065
1136	return if $pl->{deny_save};	1066	return if $pl->{deny_save};
1137		1067
1138	IO::AIO::aio_mkdir playerdir $pl, 0770;	1068	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1069	$pl->{last_save} = $cf::RUNTIME;
1140		1070
1141	Coro::cede;
1142	$pl->save_pl ($path);	1071	$pl->save_pl ($path);
1143	Coro::cede;	1072	Coro::cede;
1144	}	1073	}
1145		1074
1146	sub new($) {	1075	sub new($) {
…		…
1154	$cf::PLAYER{$login} = $self;	1083	$cf::PLAYER{$login} = $self;
1155		1084
1156	$self	1085	$self
1157	}	1086	}
1158		1087
		1088	=item $pl->quit_character
		1089
		1090	Nukes the player without looking back. If logged in, the connection will
		1091	be destroyed. May block for a long time.
		1092
		1093	=cut
		1094
1159	sub quit_character {	1095	sub quit_character {
1160	my ($pl) = @_;	1096	my ($pl) = @_;
		1097
		1098	my $name = $pl->ob->name;
1161		1099
1162	$pl->{deny_save} = 1;	1100	$pl->{deny_save} = 1;
1163	$pl->password ("*"); # this should lock out the player until we nuked the dir	1101	$pl->password ("*"); # this should lock out the player until we nuked the dir
1164		1102
1165	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1103	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1167	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1105	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1168	$pl->ns->destroy if $pl->ns;	1106	$pl->ns->destroy if $pl->ns;
1169		1107
1170	my $path = playerdir $pl;	1108	my $path = playerdir $pl;
1171	my $temp = "$path~$cf::RUNTIME~deleting~";	1109	my $temp = "$path~$cf::RUNTIME~deleting~";
1172	IO::AIO::aio_rename $path, $temp, sub {	1110	aio_rename $path, $temp;
1173	delete $cf::PLAYER{$pl->ob->name};	1111	delete $cf::PLAYER{$pl->ob->name};
1174	$pl->destroy;	1112	$pl->destroy;
1175		1113
		1114	my $prefix = qr<^~\Q$name\E/>;
		1115
		1116	# nuke player maps
		1117	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1118
1176	IO::AIO::aio_rmtree $temp;	1119	IO::AIO::aio_rmtree $temp;
		1120	}
		1121
		1122	=item $pl->kick
		1123
		1124	Kicks a player out of the game. This destroys the connection.
		1125
		1126	=cut
		1127
		1128	sub kick {
		1129	my ($pl, $kicker) = @_;
		1130
		1131	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1132	$pl->killer ("kicked");
		1133	$pl->ns->destroy;
		1134	}
		1135
		1136	=item cf::player::list_logins
		1137
		1138	Returns am arrayref of all valid playernames in the system, can take a
		1139	while and may block, so not sync_job-capable, ever.
		1140
		1141	=cut
		1142
		1143	sub list_logins {
		1144	my $dirs = aio_readdir $PLAYERDIR
		1145	or return [];
		1146
		1147	my @logins;
		1148
		1149	for my $login (@$dirs) {
		1150	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1151	aio_read $fh, 0, 512, my $buf, 0 or next;
		1152	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1153
		1154	utf8::decode $login;
		1155	push @logins, $login;
1177	};	1156	}
1178	}
1179		1157
		1158	\@logins
		1159	}
		1160
		1161	=item $player->maps
		1162
		1163	Returns an arrayref of map paths that are private for this
		1164	player. May block.
		1165
		1166	=cut
		1167
		1168	sub maps($) {
		1169	my ($pl) = @_;
		1170
		1171	$pl = ref $pl ? $pl->ob->name : $pl;
		1172
		1173	my $files = aio_readdir playerdir $pl
		1174	or return;
		1175
		1176	my @paths;
		1177
		1178	for (@$files) {
		1179	utf8::decode $_;
		1180	next if /\.(?:pl|pst)$/;
		1181	next unless /^$PATH_SEP/o;
		1182
		1183	push @paths, cf::map::normalise "~$pl/$_";
		1184	}
		1185
		1186	\@paths
		1187	}
		1188
1180	=item $player->ext_reply ($msgid, $msgtype, %msg)	1189	=item $player->ext_reply ($msgid, %msg)
1181		1190
1182	Sends an ext reply to the player.	1191	Sends an ext reply to the player.
1183		1192
1184	=cut	1193	=cut
1185		1194
1186	sub ext_reply($$$%) {	1195	sub ext_reply($$%) {
1187	my ($self, $id, %msg) = @_;	1196	my ($self, $id, %msg) = @_;
1188		1197
1189	$msg{msgid} = $id;	1198	$msg{msgid} = $id;
1190		1199
1191	$self->send ("ext " . cf::to_json \%msg);	1200	$self->send ("ext " . cf::to_json \%msg);
1192	}	1201	}
1193		1202
1194	package cf;	1203	=item $player->ext_event ($type, %msg)
		1204
		1205	Sends an ext event to the client.
		1206
		1207	=cut
		1208
		1209	sub ext_event($$%) {
		1210	my ($self, $type, %msg) = @_;
		1211
		1212	$self->ns->ext_event ($type, %msg);
		1213	}
		1214
		1215	=head3 cf::region
		1216
		1217	=over 4
		1218
		1219	=cut
		1220
		1221	package cf::region;
		1222
		1223	=item cf::region::find_by_path $path
		1224
		1225	Tries to decuce the probable region for a map knowing only its path.
		1226
		1227	=cut
		1228
		1229	sub find_by_path($) {
		1230	my ($path) = @_;
		1231
		1232	my ($match, $specificity);
		1233
		1234	for my $region (list) {
		1235	if ($region->match && $path =~ $region->match) {
		1236	($match, $specificity) = ($region, $region->specificity)
		1237	if $region->specificity > $specificity;
		1238	}
		1239	}
		1240
		1241	$match
		1242	}
1195		1243
1196	=back	1244	=back
1197
1198		1245
1199	=head3 cf::map	1246	=head3 cf::map
1200		1247
1201	=over 4	1248	=over 4
1202		1249
…		…
1205	package cf::map;	1252	package cf::map;
1206		1253
1207	use Fcntl;	1254	use Fcntl;
1208	use Coro::AIO;	1255	use Coro::AIO;
1209		1256
		1257	use overload
		1258	'""' => \&as_string,
		1259	fallback => 1;
		1260
1210	our $MAX_RESET = 3600;	1261	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1262	our $DEFAULT_RESET = 3000;
1212		1263
1213	sub generate_random_map {	1264	sub generate_random_map {
1214	my ($path, $rmp) = @_;	1265	my ($self, $rmp) = @_;
1215
1216	# mit "rum" bekleckern, nicht	1266	# mit "rum" bekleckern, nicht
1217	cf::map::_create_random_map	1267	$self->_create_random_map (
1218	$path,
1219	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1268	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1220	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1269	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1221	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1270	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1222	$rmp->{exit_on_final_map},	1271	$rmp->{exit_on_final_map},
1223	$rmp->{xsize}, $rmp->{ysize},	1272	$rmp->{xsize}, $rmp->{ysize},
1224	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1273	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1225	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1274	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1226	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1275	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1227	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1276	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1228	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1277	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1229	(cf::region::find $rmp->{region})	1278	(cf::region::find $rmp->{region}), $rmp->{custom}
		1279	)
		1280	}
		1281
		1282	=item cf::map->register ($regex, $prio)
		1283
		1284	Register a handler for the map path matching the given regex at the
		1285	givne priority (higher is better, built-in handlers have priority 0, the
		1286	default).
		1287
		1288	=cut
		1289
		1290	sub register {
		1291	my (undef, $regex, $prio) = @_;
		1292	my $pkg = caller;
		1293
		1294	no strict;
		1295	push @{"$pkg\::ISA"}, __PACKAGE__;
		1296
		1297	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1298	}
		1299
		1300	# also paths starting with '/'
		1301	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1302
		1303	sub thawer_merge {
		1304	my ($self, $merge) = @_;
		1305
		1306	# we have to keep some variables in memory intact
		1307	local $self->{path};
		1308	local $self->{load_path};
		1309	local $self->{deny_save};
		1310	local $self->{deny_reset};
		1311
		1312	$self->SUPER::thawer_merge ($merge);
		1313	}
		1314
		1315	sub normalise {
		1316	my ($path, $base) = @_;
		1317
		1318	$path = "$path"; # make sure its a string
		1319
		1320	$path =~ s/\.map$//;
		1321
		1322	# map plan:
		1323	#
		1324	# /! non-realised random map exit (special hack!)
		1325	# {... are special paths that are not being touched
		1326	# ?xxx/... are special absolute paths
		1327	# ?random/... random maps
		1328	# /... normal maps
		1329	# ~user/... per-player map of a specific user
		1330
		1331	$path =~ s/$PATH_SEP/\//go;
		1332
		1333	# treat it as relative path if it starts with
		1334	# something that looks reasonable
		1335	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1336	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1337
		1338	$base =~ s{[^/]+/?$}{};
		1339	$path = "$base/$path";
		1340	}
		1341
		1342	for ($path) {
		1343	redo if s{//}{/};
		1344	redo if s{/\.?/}{/};
		1345	redo if s{/[^/]+/\.\./}{/};
		1346	}
		1347
		1348	$path
		1349	}
		1350
		1351	sub new_from_path {
		1352	my (undef, $path, $base) = @_;
		1353
		1354	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1355
		1356	$path = normalise $path, $base;
		1357
		1358	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1359	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1360	my $self = bless cf::map::new, $pkg;
		1361	$self->{path} = $path; $self->path ($path);
		1362	$self->init; # pass $1 etc.
		1363	return $self;
		1364	}
		1365	}
		1366
		1367	Carp::carp "unable to resolve path '$path' (base '$base').";
		1368	()
		1369	}
		1370
		1371	sub init {
		1372	my ($self) = @_;
		1373
		1374	$self
		1375	}
		1376
		1377	sub as_string {
		1378	my ($self) = @_;
		1379
		1380	"$self->{path}"
		1381	}
		1382
		1383	# the displayed name, this is a one way mapping
		1384	sub visible_name {
		1385	&as_string
		1386	}
		1387
		1388	# the original (read-only) location
		1389	sub load_path {
		1390	my ($self) = @_;
		1391
		1392	"$MAPDIR/$self->{path}.map"
		1393	}
		1394
		1395	# the temporary/swap location
		1396	sub save_path {
		1397	my ($self) = @_;
		1398
		1399	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1400	"$TMPDIR/$path.map"
		1401	}
		1402
		1403	# the unique path, undef == no special unique path
		1404	sub uniq_path {
		1405	my ($self) = @_;
		1406
		1407	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1408	"$UNIQUEDIR/$path"
1230	}	1409	}
1231		1410
1232	# and all this just because we cannot iterate over	1411	# and all this just because we cannot iterate over
1233	# all maps in C++...	1412	# all maps in C++...
1234	sub change_all_map_light {	1413	sub change_all_map_light {
…		…
1236		1415
1237	$_->change_map_light ($change)	1416	$_->change_map_light ($change)
1238	for grep $_->outdoor, values %cf::MAP;	1417	for grep $_->outdoor, values %cf::MAP;
1239	}	1418	}
1240		1419
		1420	sub unlink_save {
		1421	my ($self) = @_;
		1422
		1423	utf8::encode (my $save = $self->save_path);
		1424	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1425	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1426	}
		1427
1241	sub try_load_header($) {	1428	sub load_header_from($) {
1242	my ($path) = @_;	1429	my ($self, $path) = @_;
1243		1430
1244	utf8::encode $path;	1431	utf8::encode $path;
1245	aio_open $path, O_RDONLY, 0	1432	#aio_open $path, O_RDONLY, 0
		1433	# or return;
		1434
		1435	$self->_load_header ($path)
1246	or return;	1436	or return;
1247		1437
1248	my $map = cf::map::new	1438	$self->{load_path} = $path;
		1439
		1440	1
		1441	}
		1442
		1443	sub load_header_orig {
		1444	my ($self) = @_;
		1445
		1446	$self->load_header_from ($self->load_path)
		1447	}
		1448
		1449	sub load_header_temp {
		1450	my ($self) = @_;
		1451
		1452	$self->load_header_from ($self->save_path)
		1453	}
		1454
		1455	sub prepare_temp {
		1456	my ($self) = @_;
		1457
		1458	$self->last_access ((delete $self->{last_access})
		1459	|| $cf::RUNTIME); #d#
		1460	# safety
		1461	$self->{instantiate_time} = $cf::RUNTIME
		1462	if $self->{instantiate_time} > $cf::RUNTIME;
		1463	}
		1464
		1465	sub prepare_orig {
		1466	my ($self) = @_;
		1467
		1468	$self->{load_original} = 1;
		1469	$self->{instantiate_time} = $cf::RUNTIME;
		1470	$self->last_access ($cf::RUNTIME);
		1471	$self->instantiate;
		1472	}
		1473
		1474	sub load_header {
		1475	my ($self) = @_;
		1476
		1477	if ($self->load_header_temp) {
		1478	$self->prepare_temp;
		1479	} else {
		1480	$self->load_header_orig
1249	or return;	1481	or return;
		1482	$self->prepare_orig;
		1483	}
1250		1484
1251	# for better error messages only, will be overwritten	1485	$self->default_region (cf::region::find_by_path $self->{path})
1252	$map->path ($path);	1486	unless $self->default_region;
1253		1487
1254	$map->load_header ($path)	1488	1
1255	or return;
1256
1257	$map->{load_path} = $path;
1258
1259	$map
1260	}	1489	}
1261		1490
1262	sub find;	1491	sub find;
1263	sub find {	1492	sub find {
1264	my ($path, $origin) = @_;	1493	my ($path, $origin) = @_;
1265		1494
1266	#warn "find<$path,$origin>\n";#d#
1267
1268	$path = new cf::path $path, $origin && $origin->path;	1495	$path = normalise $path, $origin && $origin->path;
1269	my $key = $path->as_string;
1270		1496
1271	cf::lock_wait "map_find:$key";	1497	cf::lock_wait "map_find:$path";
1272		1498
1273	$cf::MAP{$key} || do {	1499	$cf::MAP{$path} || do {
1274	my $guard = cf::lock_acquire "map_find:$key";	1500	my $guard = cf::lock_acquire "map_find:$path";
1275		1501	my $map = new_from_path cf::map $path
1276	# do it the slow way
1277	my $map = try_load_header $path->save_path;
1278
1279	Coro::cede;
1280
1281	if ($map) {
1282	$map->last_access ((delete $map->{last_access})
1283	|| $cf::RUNTIME); #d#
1284	# safety
1285	$map->{instantiate_time} = $cf::RUNTIME
1286	if $map->{instantiate_time} > $cf::RUNTIME;
1287	} else {
1288	if (my $rmp = $path->random_map_params) {
1289	$map = generate_random_map $key, $rmp;
1290	} else {
1291	$map = try_load_header $path->load_path;
1292	}
1293
1294	$map or return;	1502	or return;
1295		1503
1296	$map->{load_original} = 1;
1297	$map->{instantiate_time} = $cf::RUNTIME;
1298	$map->last_access ($cf::RUNTIME);
1299	$map->instantiate;
1300
1301	# per-player maps become, after loading, normal maps
1302	$map->per_player (0) if $path->{user_rel};
1303	}
1304
1305	$map->path ($key);
1306	$map->{path} = $path;
1307	$map->{last_save} = $cf::RUNTIME;	1504	$map->{last_save} = $cf::RUNTIME;
1308		1505
1309	Coro::cede;	1506	$map->load_header
		1507	or return;
1310		1508
1311	if ($map->should_reset) {	1509	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
		1510	# doing this can freeze the server in a sync job, obviously
		1511	#$cf::WAIT_FOR_TICK->wait;
1312	$map->reset;	1512	$map->reset;
1313	undef $guard;	1513	undef $guard;
1314	$map = find $path	1514	return find $path;
1315	or return;
1316	}	1515	}
1317		1516
1318	$cf::MAP{$key} = $map	1517	$cf::MAP{$path} = $map
1319	}	1518	}
1320	}	1519	}
		1520
		1521	sub pre_load { }
		1522	sub post_load { }
1321		1523
1322	sub load {	1524	sub load {
1323	my ($self) = @_;	1525	my ($self) = @_;
1324		1526
		1527	local $self->{deny_reset} = 1; # loading can take a long time
		1528
1325	my $path = $self->{path};	1529	my $path = $self->{path};
		1530
		1531	{
1326	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1532	my $guard = cf::lock_acquire "map_load:$path";
1327		1533
1328	return if $self->in_memory != cf::MAP_SWAPPED;	1534	return if $self->in_memory != cf::MAP_SWAPPED;
1329		1535
1330	$self->in_memory (cf::MAP_LOADING);	1536	$self->in_memory (cf::MAP_LOADING);
1331		1537
1332	$self->alloc;	1538	$self->alloc;
		1539
		1540	$self->pre_load;
		1541	Coro::cede;
		1542
1333	$self->load_objects ($self->{load_path}, 1)	1543	$self->_load_objects ($self->{load_path}, 1)
1334	or return;	1544	or return;
1335		1545
1336	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1546	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1337	if delete $self->{load_original};	1547	if delete $self->{load_original};
1338		1548
1339	if (my $uniq = $path->uniq_path) {	1549	if (my $uniq = $self->uniq_path) {
1340	utf8::encode $uniq;	1550	utf8::encode $uniq;
1341	if (aio_open $uniq, O_RDONLY, 0) {	1551	if (aio_open $uniq, O_RDONLY, 0) {
1342	$self->clear_unique_items;	1552	$self->clear_unique_items;
1343	$self->load_objects ($uniq, 0);	1553	$self->_load_objects ($uniq, 0);
1344	}	1554	}
1345	}	1555	}
1346		1556
1347	Coro::cede;	1557	Coro::cede;
1348
1349	# now do the right thing for maps	1558	# now do the right thing for maps
1350	$self->link_multipart_objects;	1559	$self->link_multipart_objects;
1351
1352	if ($self->{path}->is_style_map) {
1353	$self->{deny_save} = 1;
1354	$self->{deny_reset} = 1;
1355	} else {
1356	$self->fix_auto_apply;
1357	$self->decay_objects;
1358	$self->update_buttons;
1359	$self->set_darkness_map;
1360	$self->difficulty ($self->estimate_difficulty)	1560	$self->difficulty ($self->estimate_difficulty)
1361	unless $self->difficulty;	1561	unless $self->difficulty;
		1562	Coro::cede;
		1563
		1564	unless ($self->{deny_activate}) {
		1565	$self->decay_objects;
		1566	$self->fix_auto_apply;
		1567	$self->update_buttons;
		1568	Coro::cede;
		1569	$self->set_darkness_map;
		1570	Coro::cede;
1362	$self->activate;	1571	$self->activate;
1363	}	1572	}
1364		1573
1365	Coro::cede;
1366
1367	$self->in_memory (cf::MAP_IN_MEMORY);	1574	$self->in_memory (cf::MAP_IN_MEMORY);
		1575	}
		1576
		1577	$self->post_load;
		1578	}
		1579
		1580	sub customise_for {
		1581	my ($self, $ob) = @_;
		1582
		1583	return find "~" . $ob->name . "/" . $self->{path}
		1584	if $self->per_player;
		1585
		1586	$self
		1587	}
		1588
		1589	# find and load all maps in the 3x3 area around a map
		1590	sub load_diag {
		1591	my ($map) = @_;
		1592
		1593	my @diag; # diagonal neighbours
		1594
		1595	for (0 .. 3) {
		1596	my $neigh = $map->tile_path ($_)
		1597	or next;
		1598	$neigh = find $neigh, $map
		1599	or next;
		1600	$neigh->load;
		1601
		1602	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1603	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1604	}
		1605
		1606	for (@diag) {
		1607	my $neigh = find @$_
		1608	or next;
		1609	$neigh->load;
		1610	}
1368	}	1611	}
1369		1612
1370	sub find_sync {	1613	sub find_sync {
1371	my ($path, $origin) = @_;	1614	my ($path, $origin) = @_;
1372		1615
1373	cf::sync_job { cf::map::find $path, $origin }	1616	cf::sync_job { find $path, $origin }
1374	}	1617	}
1375		1618
1376	sub do_load_sync {	1619	sub do_load_sync {
1377	my ($map) = @_;	1620	my ($map) = @_;
1378		1621
1379	cf::sync_job { $map->load };	1622	cf::sync_job { $map->load };
1380	}	1623	}
1381		1624
		1625	our %MAP_PREFETCH;
		1626	our $MAP_PREFETCHER = undef;
		1627
		1628	sub find_async {
		1629	my ($path, $origin) = @_;
		1630
		1631	$path = normalise $path, $origin && $origin->{path};
		1632
		1633	if (my $map = $cf::MAP{$path}) {
		1634	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1635	}
		1636
		1637	undef $MAP_PREFETCH{$path};
		1638	$MAP_PREFETCHER ||= cf::async {
		1639	while (%MAP_PREFETCH) {
		1640	for my $path (keys %MAP_PREFETCH) {
		1641	my $map = find $path
		1642	or next;
		1643	$map->load;
		1644
		1645	delete $MAP_PREFETCH{$path};
		1646	}
		1647	}
		1648	undef $MAP_PREFETCHER;
		1649	};
		1650	$MAP_PREFETCHER->prio (6);
		1651
		1652	()
		1653	}
		1654
1382	sub save {	1655	sub save {
1383	my ($self) = @_;	1656	my ($self) = @_;
1384		1657
1385	my $lock = cf::lock_acquire "map_data:" . $self->path;	1658	my $lock = cf::lock_acquire "map_data:" . $self->path;
1386		1659
1387	$self->{last_save} = $cf::RUNTIME;	1660	$self->{last_save} = $cf::RUNTIME;
1388		1661
1389	return unless $self->dirty;	1662	return unless $self->dirty;
1390		1663
1391	my $save = $self->{path}->save_path; utf8::encode $save;	1664	my $save = $self->save_path; utf8::encode $save;
1392	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1665	my $uniq = $self->uniq_path; utf8::encode $uniq;
1393		1666
1394	$self->{load_path} = $save;	1667	$self->{load_path} = $save;
1395		1668
1396	return if $self->{deny_save};	1669	return if $self->{deny_save};
1397		1670
…		…
1400	cf::async {	1673	cf::async {
1401	$_->contr->save for $self->players;	1674	$_->contr->save for $self->players;
1402	};	1675	};
1403		1676
1404	if ($uniq) {	1677	if ($uniq) {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	1678	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1406	$self->save_objects ($uniq, cf::IO_UNIQUES);	1679	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1407	} else {	1680	} else {
1408	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	1681	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1409	}	1682	}
1410	}	1683	}
1411		1684
1412	sub swap_out {	1685	sub swap_out {
1413	my ($self) = @_;	1686	my ($self) = @_;
…		…
1427		1700
1428	sub reset_at {	1701	sub reset_at {
1429	my ($self) = @_;	1702	my ($self) = @_;
1430		1703
1431	# TODO: safety, remove and allow resettable per-player maps	1704	# TODO: safety, remove and allow resettable per-player maps
1432	return 1e99 if $self->{path}{user_rel};	1705	return 1e99 if $self->isa ("ext::map_per_player");#d#
1433	return 1e99 if $self->{deny_reset};	1706	return 1e99 if $self->{deny_reset};
1434		1707
1435	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	1708	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1436	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	1709	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1437		1710
…		…
1442	my ($self) = @_;	1715	my ($self) = @_;
1443		1716
1444	$self->reset_at <= $cf::RUNTIME	1717	$self->reset_at <= $cf::RUNTIME
1445	}	1718	}
1446		1719
1447	sub unlink_save {
1448	my ($self) = @_;
1449
1450	utf8::encode (my $save = $self->{path}->save_path);
1451	aioreq_pri 3; IO::AIO::aio_unlink $save;
1452	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1453	}
1454
1455	sub rename {
1456	my ($self, $new_path) = @_;
1457
1458	$self->unlink_save;
1459
1460	delete $cf::MAP{$self->path};
1461	$self->{path} = new cf::path $new_path;
1462	$self->path ($self->{path}->as_string);
1463	$cf::MAP{$self->path} = $self;
1464
1465	$self->save;
1466	}
1467
1468	sub reset {	1720	sub reset {
1469	my ($self) = @_;	1721	my ($self) = @_;
1470		1722
1471	my $lock = cf::lock_acquire "map_data:" . $self->path;	1723	my $lock = cf::lock_acquire "map_data:$self->{path}";
1472		1724
1473	return if $self->players;	1725	return if $self->players;
1474	return if $self->{path}{user_rel};#d#	1726	return if $self->isa ("ext::map_per_player");#d#
1475		1727
1476	warn "resetting map ", $self->path;#d#	1728	warn "resetting map ", $self->path;#d#
1477		1729
		1730	$self->in_memory (cf::MAP_SWAPPED);
		1731
		1732	# need to save uniques path
		1733	unless ($self->{deny_save}) {
		1734	my $uniq = $self->uniq_path; utf8::encode $uniq;
		1735
		1736	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		1737	if $uniq;
		1738	}
		1739
1478	delete $cf::MAP{$self->path};	1740	delete $cf::MAP{$self->path};
		1741
		1742	$self->clear;
1479		1743
1480	$_->clear_links_to ($self) for values %cf::MAP;	1744	$_->clear_links_to ($self) for values %cf::MAP;
1481		1745
1482	$self->unlink_save;	1746	$self->unlink_save;
1483	$self->destroy;	1747	$self->destroy;
…		…
1486	my $nuke_counter = "aaaa";	1750	my $nuke_counter = "aaaa";
1487		1751
1488	sub nuke {	1752	sub nuke {
1489	my ($self) = @_;	1753	my ($self) = @_;
1490		1754
		1755	delete $cf::MAP{$self->path};
		1756
		1757	$self->unlink_save;
		1758
		1759	bless $self, "cf::map";
		1760	delete $self->{deny_reset};
1491	$self->{deny_save} = 1;	1761	$self->{deny_save} = 1;
1492	$self->reset_timeout (1);	1762	$self->reset_timeout (1);
1493	$self->rename ("{nuke}/" . ($nuke_counter++));	1763	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		1764
		1765	$cf::MAP{$self->path} = $self;
		1766
1494	$self->reset; # polite request, might not happen	1767	$self->reset; # polite request, might not happen
1495	}	1768	}
1496		1769
1497	sub customise_for {	1770	=item cf::map::unique_maps
1498	my ($map, $ob) = @_;
1499		1771
1500	if ($map->per_player) {	1772	Returns an arrayref of paths of all shared maps that have
1501	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	1773	instantiated unique items. May block.
1502	}
1503		1774
1504	$map	1775	=cut
1505	}
1506		1776
1507	sub emergency_save {	1777	sub unique_maps() {
1508	my $freeze_guard = cf::freeze_mainloop;	1778	my $files = aio_readdir $UNIQUEDIR
		1779	or return;
1509		1780
1510	warn "enter emergency perl save\n";	1781	my @paths;
1511		1782
1512	cf::sync_job {	1783	for (@$files) {
1513	warn "begin emergency player save\n";	1784	utf8::decode $_;
1514	$_->save for values %cf::PLAYER;	1785	next if /\.pst$/;
1515	warn "end emergency player save\n";	1786	next unless /^$PATH_SEP/o;
1516		1787
1517	warn "begin emergency map save\n";	1788	push @paths, cf::map::normalise $_;
1518	$_->save for values %cf::MAP;
1519	warn "end emergency map save\n";
1520	};	1789	}
1521		1790
1522	warn "leave emergency perl save\n";	1791	\@paths
1523	}	1792	}
1524		1793
1525	package cf;	1794	package cf;
1526		1795
1527	=back	1796	=back
1528		1797
		1798	=head3 cf::object
		1799
		1800	=cut
		1801
		1802	package cf::object;
		1803
		1804	=over 4
		1805
		1806	=item $ob->inv_recursive
		1807
		1808	Returns the inventory of the object _and_ their inventories, recursively.
		1809
		1810	=cut
		1811
		1812	sub inv_recursive_;
		1813	sub inv_recursive_ {
		1814	map { $_, inv_recursive_ $_->inv } @_
		1815	}
		1816
		1817	sub inv_recursive {
		1818	inv_recursive_ inv $_[0]
		1819	}
		1820
		1821	package cf;
		1822
		1823	=back
1529		1824
1530	=head3 cf::object::player	1825	=head3 cf::object::player
1531		1826
1532	=over 4	1827	=over 4
1533		1828
…		…
1573		1868
1574	=item $player_object->enter_link	1869	=item $player_object->enter_link
1575		1870
1576	Freezes the player and moves him/her to a special map (C<{link}>).	1871	Freezes the player and moves him/her to a special map (C<{link}>).
1577		1872
1578	The player should be reaosnably safe there for short amounts of time. You	1873	The player should be reasonably safe there for short amounts of time. You
1579	I<MUST> call C<leave_link> as soon as possible, though.	1874	I<MUST> call C<leave_link> as soon as possible, though.
1580		1875
		1876	Will never block.
		1877
1581	=item $player_object->leave_link ($map, $x, $y)	1878	=item $player_object->leave_link ($map, $x, $y)
1582		1879
1583	Moves the player out of the specila link map onto the given map. If the	1880	Moves the player out of the special C<{link}> map onto the specified
1584	map is not valid (or omitted), the player will be moved back to the	1881	map. If the map is not valid (or omitted), the player will be moved back
1585	location he/she was before the call to C<enter_link>, or, if that fails,	1882	to the location he/she was before the call to C<enter_link>, or, if that
1586	to the emergency map position.	1883	fails, to the emergency map position.
1587		1884
1588	Might block.	1885	Might block.
1589		1886
1590	=cut	1887	=cut
		1888
		1889	sub link_map {
		1890	unless ($LINK_MAP) {
		1891	$LINK_MAP = cf::map::find "{link}"
		1892	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		1893	$LINK_MAP->load;
		1894	}
		1895
		1896	$LINK_MAP
		1897	}
1591		1898
1592	sub cf::object::player::enter_link {	1899	sub cf::object::player::enter_link {
1593	my ($self) = @_;	1900	my ($self) = @_;
1594		1901
1595	$self->deactivate_recursive;	1902	$self->deactivate_recursive;
1596		1903
1597	return if $self->map == $LINK_MAP;	1904	return if UNIVERSAL::isa $self->map, "ext::map_link";
1598		1905
1599	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	1906	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1600	if $self->map;	1907	if $self->map;
1601		1908
1602	$self->enter_map ($LINK_MAP, 20, 20);	1909	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1603	}	1910	}
1604		1911
1605	sub cf::object::player::leave_link {	1912	sub cf::object::player::leave_link {
1606	my ($self, $map, $x, $y) = @_;	1913	my ($self, $map, $x, $y) = @_;
1607		1914
…		…
1625	# use -1 or undef as default coordinates, not 0, 0	1932	# use -1 or undef as default coordinates, not 0, 0
1626	($x, $y) = ($map->enter_x, $map->enter_y)	1933	($x, $y) = ($map->enter_x, $map->enter_y)
1627	if $x <=0 && $y <= 0;	1934	if $x <=0 && $y <= 0;
1628		1935
1629	$map->load;	1936	$map->load;
		1937	$map->load_diag;
1630		1938
1631	return unless $self->contr->active;	1939	return unless $self->contr->active;
1632	$self->activate_recursive;	1940	$self->activate_recursive;
		1941
		1942	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1633	$self->enter_map ($map, $x, $y);	1943	$self->enter_map ($map, $x, $y);
1634	}	1944	}
1635		1945
1636	cf::player->attach (	1946	cf::player->attach (
1637	on_logout => sub {	1947	on_logout => sub {
…		…
1650	# try to abort aborted map switching on player login :)	1960	# try to abort aborted map switching on player login :)
1651	# should happen only on crashes	1961	# should happen only on crashes
1652	if ($pl->ob->{_link_pos}) {	1962	if ($pl->ob->{_link_pos}) {
1653	$pl->ob->enter_link;	1963	$pl->ob->enter_link;
1654	(async {	1964	(async {
1655	# we need this sleep as the login has a concurrent enter_exit running
1656	# and this sleep increases chances of the player not ending up in scorn
1657	$pl->ob->reply (undef,	1965	$pl->ob->reply (undef,
1658	"There was an internal problem at your last logout, "	1966	"There was an internal problem at your last logout, "
1659	. "the server will try to bring you to your intended destination in a second.",	1967	. "the server will try to bring you to your intended destination in a second.",
1660	cf::NDI_RED);	1968	cf::NDI_RED);
		1969	# we need this sleep as the login has a concurrent enter_exit running
		1970	# and this sleep increases chances of the player not ending up in scorn
1661	Coro::Timer::sleep 1;	1971	Coro::Timer::sleep 1;
1662	$pl->ob->leave_link;	1972	$pl->ob->leave_link;
1663	})->prio (2);	1973	})->prio (2);
1664	}	1974	}
1665	},	1975	},
…		…
1673	my ($self, $path, $x, $y) = @_;	1983	my ($self, $path, $x, $y) = @_;
1674		1984
1675	$self->enter_link;	1985	$self->enter_link;
1676		1986
1677	(async {	1987	(async {
1678	$path = new cf::path $path;	1988	my $map = eval {
1679
1680	my $map = cf::map::find $path->as_string;	1989	my $map = cf::map::find $path;
1681	$map = $map->customise_for ($self) if $map;	1990	$map = $map->customise_for ($self) if $map;
1682		1991	$map
1683	# warn "entering ", $map->path, " at ($x, $y)\n"	1992	} or
1684	# if $map;
1685
1686	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	1993	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1687		1994
1688	$self->leave_link ($map, $x, $y);	1995	$self->leave_link ($map, $x, $y);
1689	})->prio (1);	1996	})->prio (1);
1690	}	1997	}
1691		1998
…		…
1695		2002
1696	sub parse_random_map_params {	2003	sub parse_random_map_params {
1697	my ($spec) = @_;	2004	my ($spec) = @_;
1698		2005
1699	my $rmp = { # defaults	2006	my $rmp = { # defaults
1700	xsize => 10,	2007	xsize => (cf::rndm 15, 40),
1701	ysize => 10,	2008	ysize => (cf::rndm 15, 40),
		2009	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2010	#layout => string,
1702	};	2011	};
1703		2012
1704	for (split /\n/, $spec) {	2013	for (split /\n/, $spec) {
1705	my ($k, $v) = split /\s+/, $_, 2;	2014	my ($k, $v) = split /\s+/, $_, 2;
1706		2015
…		…
1710	$rmp	2019	$rmp
1711	}	2020	}
1712		2021
1713	sub prepare_random_map {	2022	sub prepare_random_map {
1714	my ($exit) = @_;	2023	my ($exit) = @_;
		2024
		2025	my $guard = cf::lock_acquire "exit_prepare:$exit";
1715		2026
1716	# all this does is basically replace the /! path by	2027	# all this does is basically replace the /! path by
1717	# a new random map path (?random/...) with a seed	2028	# a new random map path (?random/...) with a seed
1718	# that depends on the exit object	2029	# that depends on the exit object
1719		2030
1720	my $rmp = parse_random_map_params $exit->msg;	2031	my $rmp = parse_random_map_params $exit->msg;
1721		2032
1722	if ($exit->map) {	2033	if ($exit->map) {
1723	$rmp->{region} = $exit->map->region_name;	2034	$rmp->{region} = $exit->region->name;
1724	$rmp->{origin_map} = $exit->map->path;	2035	$rmp->{origin_map} = $exit->map->path;
1725	$rmp->{origin_x} = $exit->x;	2036	$rmp->{origin_x} = $exit->x;
1726	$rmp->{origin_y} = $exit->y;	2037	$rmp->{origin_y} = $exit->y;
1727	}	2038	}
1728		2039
1729	$rmp->{random_seed} ||= $exit->random_seed;	2040	$rmp->{random_seed} ||= $exit->random_seed;
1730		2041
1731	my $data = cf::to_json $rmp;	2042	my $data = cf::to_json $rmp;
1732	my $md5 = Digest::MD5::md5_hex $data;	2043	my $md5 = Digest::MD5::md5_hex $data;
		2044	my $meta = "$RANDOMDIR/$md5.meta";
1733		2045
1734	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2046	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1735	aio_write $fh, 0, (length $data), $data, 0;	2047	aio_write $fh, 0, (length $data), $data, 0;
		2048	undef $fh;
		2049	aio_rename "$meta~", $meta;
1736		2050
1737	$exit->slaying ("?random/$md5");	2051	$exit->slaying ("?random/$md5");
1738	$exit->msg (undef);	2052	$exit->msg (undef);
1739	}	2053	}
1740	}	2054	}
1741		2055
1742	sub cf::object::player::enter_exit {	2056	sub cf::object::player::enter_exit {
1743	my ($self, $exit) = @_;	2057	my ($self, $exit) = @_;
1744		2058
1745	return unless $self->type == cf::PLAYER;	2059	return unless $self->type == cf::PLAYER;
		2060
		2061	if ($exit->slaying eq "/!") {
		2062	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2063	# the problem is that $exit might not survive long enough
		2064	# so it needs to be done right now, right here
		2065	cf::sync_job { prepare_random_map $exit };
		2066	}
		2067
		2068	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2069	my $hp = $exit->stats->hp;
		2070	my $sp = $exit->stats->sp;
1746		2071
1747	$self->enter_link;	2072	$self->enter_link;
1748		2073
1749	(async {	2074	(async {
1750	$self->deactivate_recursive; # just to be sure	2075	$self->deactivate_recursive; # just to be sure
1751	unless (eval {	2076	unless (eval {
1752	prepare_random_map $exit	2077	$self->goto ($slaying, $hp, $sp);
1753	if $exit->slaying eq "/!";
1754
1755	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1756	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1757		2078
1758	1;	2079	1;
1759	}) {	2080	}) {
1760	$self->message ("Something went wrong deep within the crossfire server. "	2081	$self->message ("Something went wrong deep within the crossfire server. "
1761	. "I'll try to bring you back to the map you were before. "	2082	. "I'll try to bring you back to the map you were before. "
1762	. "Please report this to the dungeon master",	2083	. "Please report this to the dungeon master!",
1763	cf::NDI_UNIQUE | cf::NDI_RED);	2084	cf::NDI_UNIQUE | cf::NDI_RED);
1764		2085
1765	warn "ERROR in enter_exit: $@";	2086	warn "ERROR in enter_exit: $@";
1766	$self->leave_link;	2087	$self->leave_link;
1767	}	2088	}
1768	})->prio (1);	2089	})->prio (1);
…		…
1781		2102
1782	sub cf::client::send_drawinfo {	2103	sub cf::client::send_drawinfo {
1783	my ($self, $text, $flags) = @_;	2104	my ($self, $text, $flags) = @_;
1784		2105
1785	utf8::encode $text;	2106	utf8::encode $text;
1786	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2107	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1787	}	2108	}
1788		2109
		2110	=item $client->ext_event ($type, %msg)
		2111
		2112	Sends an exti event to the client.
		2113
		2114	=cut
		2115
		2116	sub cf::client::ext_event($$%) {
		2117	my ($self, $type, %msg) = @_;
		2118
		2119	$msg{msgtype} = "event_$type";
		2120	$self->send_packet ("ext " . cf::to_json \%msg);
		2121	}
1789		2122
1790	=item $success = $client->query ($flags, "text", \&cb)	2123	=item $success = $client->query ($flags, "text", \&cb)
1791		2124
1792	Queues a query to the client, calling the given callback with	2125	Queues a query to the client, calling the given callback with
1793	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2126	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
…		…
1822	# get handled first	2155	# get handled first
1823	my $queue = delete $ns->{query_queue}	2156	my $queue = delete $ns->{query_queue}
1824	or return; # be conservative, not sure how that can happen, but we saw a crash here	2157	or return; # be conservative, not sure how that can happen, but we saw a crash here
1825		2158
1826	(shift @$queue)->[1]->($msg);	2159	(shift @$queue)->[1]->($msg);
		2160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1827		2161
1828	push @{ $ns->{query_queue} }, @$queue;	2162	push @{ $ns->{query_queue} }, @$queue;
1829		2163
1830	if (@{ $ns->{query_queue} } == @$queue) {	2164	if (@{ $ns->{query_queue} } == @$queue) {
1831	if (@$queue) {	2165	if (@$queue) {
…		…
1889		2223
1890	# here we export the classes and methods available to script code	2224	# here we export the classes and methods available to script code
1891		2225
1892	=pod	2226	=pod
1893		2227
1894	The following fucntions and emthods are available within a safe environment:	2228	The following functions and methods are available within a safe environment:
1895		2229
1896	cf::object contr pay_amount pay_player map	2230	cf::object contr pay_amount pay_player map
1897	cf::object::player player	2231	cf::object::player player
1898	cf::player peaceful	2232	cf::player peaceful
1899	cf::map trigger	2233	cf::map trigger
…		…
1984	#############################################################################	2318	#############################################################################
1985		2319
1986	=head2 EXTENSION DATABASE SUPPORT	2320	=head2 EXTENSION DATABASE SUPPORT
1987		2321
1988	Crossfire maintains a very simple database for extension use. It can	2322	Crossfire maintains a very simple database for extension use. It can
1989	currently store anything that can be serialised using Storable, which	2323	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
1990	excludes objects.	2324	convert to/from binary).
1991		2325
1992	The parameter C<$family> should best start with the name of the extension	2326	The parameter C<$family> should best start with the name of the extension
1993	using it, it should be unique.	2327	using it, it should be unique.
1994		2328
1995	=over 4	2329	=over 4
1996		2330
1997	=item $hashref = cf::db_get $family
1998
1999	Return a hashref for use by the extension C<$family>, which can be
2000	modified. After modifications, you have to call C<cf::db_dirty> or
2001	C<cf::db_sync>.
2002
2003	=item $value = cf::db_get $family => $key	2331	=item $value = cf::db_get $family => $key
2004		2332
2005	Returns a single value from the database	2333	Returns a single value from the database.
2006
2007	=item cf::db_put $family => $hashref
2008
2009	Stores the given family hashref into the database. Updates are delayed, if
2010	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2011		2334
2012	=item cf::db_put $family => $key => $value	2335	=item cf::db_put $family => $key => $value
2013		2336
2014	Stores the given C<$value> in the family hash. Updates are delayed, if you	2337	Stores the given C<$value> in the family.
2015	want the data to be synced to disk immediately, use C<cf::db_sync>.
2016
2017	=item cf::db_dirty
2018
2019	Marks the database as dirty, to be updated at a later time.
2020
2021	=item cf::db_sync
2022
2023	Immediately write the database to disk I<if it is dirty>.
2024		2338
2025	=cut	2339	=cut
2026		2340
2027	our $DB;	2341	our $DB;
2028		2342
2029	{	2343	sub db_init {
2030	my $path = cf::localdir . "/database.pst";	2344	unless ($DB) {
		2345	$DB = BDB::db_create $DB_ENV;
2031		2346
2032	sub db_load() {	2347	cf::sync_job {
2033	$DB = stat $path ? Storable::retrieve $path : { };	2348	eval {
2034	}	2349	$DB->set_flags (BDB::CHKSUM);
2035		2350
2036	my $pid;	2351	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2037		2352	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2038	sub db_save() {	2353	cf::cleanup "db_open(db): $!" if $!;
2039	waitpid $pid, 0 if $pid;	2354	};
2040	if (0 == ($pid = fork)) {	2355	cf::cleanup "db_open(db): $@" if $@;
2041	$DB->{_meta}{version} = 1;
2042	Storable::nstore $DB, "$path~";
2043	rename "$path~", $path;
2044	cf::_exit 0 if defined $pid;
2045	}	2356	};
2046	}
2047
2048	my $dirty;
2049
2050	sub db_sync() {
2051	db_save if $dirty;
2052	undef $dirty;
2053	}
2054
2055	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2056	db_sync;
2057	});	2357	}
		2358	}
2058		2359
2059	sub db_dirty() {
2060	$dirty = 1;
2061	$idle->start;
2062	}
2063
2064	sub db_get($;$) {	2360	sub db_get($$) {
2065	@_ >= 2	2361	my $key = "$_[0]/$_[1]";
2066	? $DB->{$_[0]}{$_[1]}
2067	: ($DB->{$_[0]} ||= { })
2068	}
2069		2362
		2363	cf::sync_job {
		2364	BDB::db_get $DB, undef, $key, my $data;
		2365
		2366	$! ? ()
		2367	: $data
		2368	}
		2369	}
		2370
2070	sub db_put($$;$) {	2371	sub db_put($$$) {
2071	if (@_ >= 3) {	2372	BDB::dbreq_pri 4;
2072	$DB->{$_[0]}{$_[1]} = $_[2];	2373	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2073	} else {	2374	}
2074	$DB->{$_[0]} = $_[1];
2075	}
2076	db_dirty;
2077	}
2078		2375
2079	cf::global->attach (	2376	=item cf::cache $id => [$paths...], $processversion => $process
2080	prio => 10000,	2377
2081	on_cleanup => sub {	2378	Generic caching function that returns the value of the resource $id,
2082	db_sync;	2379	caching and regenerating as required.
		2380
		2381	This function can block.
		2382
		2383	=cut
		2384
		2385	sub cache {
		2386	my ($id, $src, $processversion, $process) = @_;
		2387
		2388	my $meta =
		2389	join "\x00",
		2390	$processversion,
		2391	map {
		2392	aio_stat $_
		2393	and Carp::croak "$_: $!";
		2394
		2395	($_, (stat _)[7,9])
		2396	} @$src;
		2397
		2398	my $dbmeta = db_get cache => "$id/meta";
		2399	if ($dbmeta ne $meta) {
		2400	# changed, we may need to process
		2401
		2402	my @data;
		2403	my $md5;
		2404
		2405	for (0 .. $#$src) {
		2406	0 <= aio_load $src->[$_], $data[$_]
		2407	or Carp::croak "$src->[$_]: $!";
2083	},	2408	}
2084	);	2409
		2410	# if processing is expensive, check
		2411	# checksum first
		2412	if (1) {
		2413	$md5 =
		2414	join "\x00",
		2415	$processversion,
		2416	map {
		2417	Coro::cede;
		2418	($src->[$_], Digest::MD5::md5_hex $data[$_])
		2419	} 0.. $#$src;
		2420
		2421
		2422	my $dbmd5 = db_get cache => "$id/md5";
		2423	if ($dbmd5 eq $md5) {
		2424	db_put cache => "$id/meta", $meta;
		2425
		2426	return db_get cache => "$id/data";
		2427	}
		2428	}
		2429
		2430	my $t1 = Time::HiRes::time;
		2431	my $data = $process->(\@data);
		2432	my $t2 = Time::HiRes::time;
		2433
		2434	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		2435
		2436	db_put cache => "$id/data", $data;
		2437	db_put cache => "$id/md5" , $md5;
		2438	db_put cache => "$id/meta", $meta;
		2439
		2440	return $data;
		2441	}
		2442
		2443	db_get cache => "$id/data"
2085	}	2444	}
		2445
		2446	=item fork_call { }, $args
		2447
		2448	Executes the given code block with the given arguments in a seperate
		2449	process, returning the results. Everything must be serialisable with
		2450	Coro::Storable. May, of course, block. Note that the executed sub may
		2451	never block itself or use any form of Event handling.
		2452
		2453	=cut
		2454
		2455	sub fork_call(&@) {
		2456	my ($cb, @args) = @_;
		2457
		2458	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
		2459	# or die "socketpair: $!";
		2460	pipe my $fh1, my $fh2
		2461	or die "pipe: $!";
		2462
		2463	if (my $pid = fork) {
		2464	close $fh2;
		2465
		2466	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
		2467	$res = Coro::Storable::thaw $res;
		2468
		2469	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
		2470
		2471	die $$res unless "ARRAY" eq ref $res;
		2472
		2473	return wantarray ? @$res : $res->[-1];
		2474	} else {
		2475	reset_signals;
		2476	local $SIG{__WARN__};
		2477	local $SIG{__DIE__};
		2478	eval {
		2479	close $fh1;
		2480
		2481	my @res = eval { $cb->(@args) };
		2482	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
		2483	};
		2484
		2485	warn $@ if $@;
		2486	_exit 0;
		2487	}
		2488	}
		2489
		2490
2086		2491
2087	#############################################################################	2492	#############################################################################
2088	# the server's main()	2493	# the server's init and main functions
		2494
		2495	sub load_facedata($) {
		2496	my ($path) = @_;
		2497
		2498	warn "loading facedata from $path\n";
		2499
		2500	my $facedata;
		2501	0 < aio_load $path, $facedata
		2502	or die "$path: $!";
		2503
		2504	$facedata = Coro::Storable::thaw $facedata;
		2505
		2506	$facedata->{version} == 2
		2507	or cf::cleanup "$path: version mismatch, cannot proceed.";
		2508
		2509	{
		2510	my $faces = $facedata->{faceinfo};
		2511
		2512	while (my ($face, $info) = each %$faces) {
		2513	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2514	cf::face::set $idx, $info->{visibility}, $info->{magicmap};
		2515	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2516	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
		2517	Coro::cede;
		2518	}
		2519
		2520	while (my ($face, $info) = each %$faces) {
		2521	next unless $info->{smooth};
		2522	my $idx = cf::face::find $face
		2523	or next;
		2524	if (my $smooth = cf::face::find $info->{smooth}) {
		2525	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
		2526	} else {
		2527	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2528	}
		2529	Coro::cede;
		2530	}
		2531	}
		2532
		2533	{
		2534	my $anims = $facedata->{animinfo};
		2535
		2536	while (my ($anim, $info) = each %$anims) {
		2537	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2538	Coro::cede;
		2539	}
		2540
		2541	cf::anim::invalidate_all; # d'oh
		2542	}
		2543
		2544	1
		2545	}
		2546
		2547	sub reload_regions {
		2548	load_resource_file "$MAPDIR/regions"
		2549	or die "unable to load regions file\n";
		2550	}
		2551
		2552	sub reload_facedata {
		2553	load_facedata "$DATADIR/facedata"
		2554	or die "unable to load facedata\n";
		2555	}
		2556
		2557	sub reload_archetypes {
		2558	load_resource_file "$DATADIR/archetypes"
		2559	or die "unable to load archetypes\n";
		2560	}
		2561
		2562	sub reload_treasures {
		2563	load_resource_file "$DATADIR/treasures"
		2564	or die "unable to load treasurelists\n";
		2565	}
		2566
		2567	sub reload_resources {
		2568	warn "reloading resource files...\n";
		2569
		2570	reload_regions;
		2571	reload_facedata;
		2572	reload_archetypes;
		2573	reload_treasures;
		2574
		2575	warn "finished reloading resource files\n";
		2576	}
		2577
		2578	sub init {
		2579	reload_resources;
		2580	}
2089		2581
2090	sub cfg_load {	2582	sub cfg_load {
2091	open my $fh, "<:utf8", cf::confdir . "/config"	2583	open my $fh, "<:utf8", "$CONFDIR/config"
2092	or return;	2584	or return;
2093		2585
2094	local $/;	2586	local $/;
2095	*CFG = YAML::Syck::Load <$fh>;	2587	*CFG = YAML::Syck::Load <$fh>;
2096		2588
…		…
2110		2602
2111	sub main {	2603	sub main {
2112	# we must not ever block the main coroutine	2604	# we must not ever block the main coroutine
2113	local $Coro::idle = sub {	2605	local $Coro::idle = sub {
2114	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2606	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		2607	(async {
2115	async { Event::one_event };	2608	Event::one_event;
		2609	})->prio (Coro::PRIO_MAX);
2116	};	2610	};
2117		2611
2118	cfg_load;	2612	cfg_load;
2119	db_load;	2613	db_init;
2120	load_extensions;	2614	load_extensions;
		2615
		2616	$TICK_WATCHER->start;
2121	Event::loop;	2617	Event::loop;
2122	}	2618	}
2123		2619
2124	#############################################################################	2620	#############################################################################
2125	# initialisation	2621	# initialisation and cleanup
2126		2622
		2623	# install some emergency cleanup handlers
		2624	BEGIN {
		2625	for my $signal (qw(INT HUP TERM)) {
		2626	Event->signal (
		2627	reentrant => 0,
		2628	data => WF_AUTOCANCEL,
		2629	signal => $signal,
		2630	prio => 0,
		2631	cb => sub {
		2632	cf::cleanup "SIG$signal";
		2633	},
		2634	);
		2635	}
		2636	}
		2637
		2638	sub emergency_save() {
		2639	my $freeze_guard = cf::freeze_mainloop;
		2640
		2641	warn "enter emergency perl save\n";
		2642
		2643	cf::sync_job {
		2644	# use a peculiar iteration method to avoid tripping on perl
		2645	# refcount bugs in for. also avoids problems with players
		2646	# and maps saved/destroyed asynchronously.
		2647	warn "begin emergency player save\n";
		2648	for my $login (keys %cf::PLAYER) {
		2649	my $pl = $cf::PLAYER{$login} or next;
		2650	$pl->valid or next;
		2651	$pl->save;
		2652	}
		2653	warn "end emergency player save\n";
		2654
		2655	warn "begin emergency map save\n";
		2656	for my $path (keys %cf::MAP) {
		2657	my $map = $cf::MAP{$path} or next;
		2658	$map->valid or next;
		2659	$map->save;
		2660	}
		2661	warn "end emergency map save\n";
		2662
		2663	warn "begin emergency database checkpoint\n";
		2664	BDB::db_env_txn_checkpoint $DB_ENV;
		2665	warn "end emergency database checkpoint\n";
		2666	};
		2667
		2668	warn "leave emergency perl save\n";
		2669	}
		2670
		2671	sub post_cleanup {
		2672	my ($make_core) = @_;
		2673
		2674	warn Carp::longmess "post_cleanup backtrace"
		2675	if $make_core;
		2676	}
		2677
2127	sub reload() {	2678	sub do_reload_perl() {
2128	# can/must only be called in main	2679	# can/must only be called in main
2129	if ($Coro::current != $Coro::main) {	2680	if ($Coro::current != $Coro::main) {
2130	warn "can only reload from main coroutine\n";	2681	warn "can only reload from main coroutine";
2131	return;	2682	return;
2132	}	2683	}
2133		2684
2134	warn "reloading...";	2685	warn "reloading...";
2135		2686
2136	my $guard = freeze_mainloop;	2687	warn "entering sync_job";
		2688
		2689	cf::sync_job {
		2690	cf::write_runtime; # external watchdog should not bark
2137	cf::emergency_save;	2691	cf::emergency_save;
		2692	cf::write_runtime; # external watchdog should not bark
2138		2693
2139	eval {	2694	warn "syncing database to disk";
		2695	BDB::db_env_txn_checkpoint $DB_ENV;
		2696
2140	# if anything goes wrong in here, we should simply crash as we already saved	2697	# if anything goes wrong in here, we should simply crash as we already saved
2141		2698
2142	# cancel all watchers	2699	warn "cancelling all WF_AUTOCANCEL watchers";
2143	for (Event::all_watchers) {	2700	for (Event::all_watchers) {
2144	$_->cancel if $_->data & WF_AUTOCANCEL;	2701	$_->cancel if $_->data & WF_AUTOCANCEL;
2145	}	2702	}
2146		2703
		2704	warn "flushing outstanding aio requests";
		2705	for (;;) {
		2706	BDB::flush;
		2707	IO::AIO::flush;
		2708	Coro::cede;
		2709	last unless IO::AIO::nreqs || BDB::nreqs;
		2710	warn "iterate...";
		2711	}
		2712
		2713	++$RELOAD;
		2714
2147	# cancel all extension coros	2715	warn "cancelling all extension coros";
2148	$_->cancel for values %EXT_CORO;	2716	$_->cancel for values %EXT_CORO;
2149	%EXT_CORO = ();	2717	%EXT_CORO = ();
2150		2718
2151	# unload all extensions	2719	warn "removing commands";
2152	for (@exts) {	2720	%COMMAND = ();
		2721
		2722	warn "removing ext commands";
		2723	%EXTCMD = ();
		2724
		2725	warn "unloading/nuking all extensions";
		2726	for my $pkg (@EXTS) {
2153	warn "unloading <$_>";	2727	warn "... unloading $pkg";
2154	unload_extension $_;	2728
		2729	if (my $cb = $pkg->can ("unload")) {
		2730	eval {
		2731	$cb->($pkg);
		2732	1
		2733	} or warn "$pkg unloaded, but with errors: $@";
2155	}	2734	}
2156		2735
		2736	warn "... nuking $pkg";
		2737	Symbol::delete_package $pkg;
		2738	}
		2739
2157	# unload all modules loaded from $LIBDIR	2740	warn "unloading all perl modules loaded from $LIBDIR";
2158	while (my ($k, $v) = each %INC) {	2741	while (my ($k, $v) = each %INC) {
2159	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	2742	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2160		2743
2161	warn "removing <$k>";	2744	warn "... unloading $k";
2162	delete $INC{$k};	2745	delete $INC{$k};
2163		2746
2164	$k =~ s/\.pm$//;	2747	$k =~ s/\.pm$//;
2165	$k =~ s/\//::/g;	2748	$k =~ s/\//::/g;
2166		2749
…		…
2169	}	2752	}
2170		2753
2171	Symbol::delete_package $k;	2754	Symbol::delete_package $k;
2172	}	2755	}
2173		2756
2174	# sync database to disk
2175	cf::db_sync;
2176	IO::AIO::flush;
2177
2178	# get rid of safe::, as good as possible	2757	warn "getting rid of safe::, as good as possible";
2179	Symbol::delete_package "safe::$_"	2758	Symbol::delete_package "safe::$_"
2180	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	2759	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2181		2760
2182	# remove register_script_function callbacks
2183	# TODO
2184
2185	# unload cf.pm "a bit"	2761	warn "unloading cf.pm \"a bit\"";
2186	delete $INC{"cf.pm"};	2762	delete $INC{"cf.pm"};
		2763	delete $INC{"cf/pod.pm"};
2187		2764
2188	# don't, removes xs symbols, too,	2765	# don't, removes xs symbols, too,
2189	# and global variables created in xs	2766	# and global variables created in xs
2190	#Symbol::delete_package __PACKAGE__;	2767	#Symbol::delete_package __PACKAGE__;
2191		2768
2192	# reload cf.pm	2769	warn "unload completed, starting to reload now";
		2770
2193	warn "reloading cf.pm";	2771	warn "reloading cf.pm";
2194	require cf;	2772	require cf;
2195	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	2773	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2196		2774
2197	# load config and database again	2775	warn "loading config and database again";
2198	cf::cfg_load;	2776	cf::cfg_load;
2199	cf::db_load;
2200		2777
2201	# load extensions
2202	warn "load extensions";	2778	warn "loading extensions";
2203	cf::load_extensions;	2779	cf::load_extensions;
2204		2780
2205	# reattach attachments to objects	2781	warn "reattaching attachments to objects/players";
2206	warn "reattach";	2782	_global_reattach; # objects, sockets
2207	_global_reattach;	2783	warn "reattaching attachments to maps";
2208	reattach $_ for values %MAP;	2784	reattach $_ for values %MAP;
2209	};	2785	warn "reattaching attachments to players";
		2786	reattach $_ for values %PLAYER;
2210		2787
2211	if ($@) {	2788	warn "leaving sync_job";
		2789
		2790	1
		2791	} or do {
2212	warn $@;	2792	warn $@;
2213	warn "error while reloading, exiting.";	2793	warn "error while reloading, exiting.";
2214	exit 1;	2794	exit 1;
2215	}	2795	};
2216		2796
2217	warn "reloaded successfully";	2797	warn "reloaded";
2218	};	2798	};
2219		2799
2220	#############################################################################	2800	our $RELOAD_WATCHER; # used only during reload
2221		2801
2222	unless ($LINK_MAP) {	2802	sub reload_perl() {
2223	$LINK_MAP = cf::map::new;	2803	# doing reload synchronously and two reloads happen back-to-back,
		2804	# coro crashes during coro_state_free->destroy here.
2224		2805
2225	$LINK_MAP->width (41);	2806	$RELOAD_WATCHER ||= Event->timer (
2226	$LINK_MAP->height (41);	2807	reentrant => 0,
2227	$LINK_MAP->alloc;
2228	$LINK_MAP->path ("{link}");
2229	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2230	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2231
2232	# dirty hack because... archetypes are not yet loaded
2233	Event->timer (
2234	after => 10,	2808	after => 0,
		2809	data => WF_AUTOCANCEL,
2235	cb => sub {	2810	cb => sub {
2236	$_[0]->w->cancel;	2811	do_reload_perl;
2237		2812	undef $RELOAD_WATCHER;
2238	# provide some exits "home"
2239	my $exit = cf::object::new "exit";
2240
2241	$exit->slaying ($EMERGENCY_POSITION->[0]);
2242	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2243	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2244
2245	$LINK_MAP->insert ($exit->clone, 19, 19);
2246	$LINK_MAP->insert ($exit->clone, 19, 20);
2247	$LINK_MAP->insert ($exit->clone, 19, 21);
2248	$LINK_MAP->insert ($exit->clone, 20, 19);
2249	$LINK_MAP->insert ($exit->clone, 20, 21);
2250	$LINK_MAP->insert ($exit->clone, 21, 19);
2251	$LINK_MAP->insert ($exit->clone, 21, 20);
2252	$LINK_MAP->insert ($exit->clone, 21, 21);
2253
2254	$exit->destroy;
2255	});	2813	},
2256		2814	);
2257	$LINK_MAP->{deny_save} = 1;
2258	$LINK_MAP->{deny_reset} = 1;
2259
2260	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2261	}	2815	}
2262
2263	register "<global>", __PACKAGE__;
2264		2816
2265	register_command "reload" => sub {	2817	register_command "reload" => sub {
2266	my ($who, $arg) = @_;	2818	my ($who, $arg) = @_;
2267		2819
2268	if ($who->flag (FLAG_WIZ)) {	2820	if ($who->flag (FLAG_WIZ)) {
2269	$who->message ("start of reload.");
2270	reload;
2271	$who->message ("end of reload.");	2821	$who->message ("reloading server.");
		2822	async { reload_perl };
2272	}	2823	}
2273	};	2824	};
2274		2825
2275	unshift @INC, $LIBDIR;	2826	unshift @INC, $LIBDIR;
		2827
		2828	my $bug_warning = 0;
		2829
		2830	our @WAIT_FOR_TICK;
		2831	our @WAIT_FOR_TICK_BEGIN;
		2832
		2833	sub wait_for_tick {
		2834	return unless $TICK_WATCHER->is_active;
		2835	return if $Coro::current == $Coro::main;
		2836
		2837	my $signal = new Coro::Signal;
		2838	push @WAIT_FOR_TICK, $signal;
		2839	$signal->wait;
		2840	}
		2841
		2842	sub wait_for_tick_begin {
		2843	return unless $TICK_WATCHER->is_active;
		2844	return if $Coro::current == $Coro::main;
		2845
		2846	my $signal = new Coro::Signal;
		2847	push @WAIT_FOR_TICK_BEGIN, $signal;
		2848	$signal->wait;
		2849	}
2276		2850
2277	$TICK_WATCHER = Event->timer (	2851	$TICK_WATCHER = Event->timer (
2278	reentrant => 0,	2852	reentrant => 0,
		2853	parked => 1,
2279	prio => 0,	2854	prio => 0,
2280	at => $NEXT_TICK || $TICK,	2855	at => $NEXT_TICK || $TICK,
2281	data => WF_AUTOCANCEL,	2856	data => WF_AUTOCANCEL,
2282	cb => sub {	2857	cb => sub {
		2858	if ($Coro::current != $Coro::main) {
		2859	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		2860	unless ++$bug_warning > 10;
		2861	return;
		2862	}
		2863
		2864	$NOW = $tick_start = Event::time;
		2865
2283	cf::server_tick; # one server iteration	2866	cf::server_tick; # one server iteration
		2867
2284	$RUNTIME += $TICK;	2868	$RUNTIME += $TICK;
2285	$NEXT_TICK += $TICK;	2869	$NEXT_TICK += $TICK;
2286		2870
		2871	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		2872	$NEXT_RUNTIME_WRITE = $NOW + 10;
		2873	Coro::async_pool {
		2874	write_runtime
		2875	or warn "ERROR: unable to write runtime file: $!";
		2876	};
		2877	}
		2878
		2879	# my $AFTER = Event::time;
		2880	# warn $AFTER - $NOW;#d#
		2881
		2882	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		2883	$sig->send;
		2884	}
		2885	while (my $sig = shift @WAIT_FOR_TICK) {
		2886	$sig->send;
		2887	}
		2888
		2889	$NOW = Event::time;
		2890
2287	# if we are delayed by four ticks or more, skip them all	2891	# if we are delayed by four ticks or more, skip them all
2288	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	2892	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2289		2893
2290	$TICK_WATCHER->at ($NEXT_TICK);	2894	$TICK_WATCHER->at ($NEXT_TICK);
2291	$TICK_WATCHER->start;	2895	$TICK_WATCHER->start;
		2896
		2897	$LOAD = ($NOW - $tick_start) / $TICK;
		2898	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		2899
		2900	_post_tick;
		2901
		2902
2292	},	2903	},
2293	);	2904	);
2294		2905
		2906	{
2295	IO::AIO::max_poll_time $TICK * 0.2;	2907	BDB::max_poll_time $TICK * 0.1;
2296		2908	$BDB_POLL_WATCHER = Event->io (
2297	Event->io (	2909	reentrant => 0,
2298	fd => IO::AIO::poll_fileno,	2910	fd => BDB::poll_fileno,
2299	poll => 'r',	2911	poll => 'r',
2300	prio => 5,	2912	prio => 0,
2301	data => WF_AUTOCANCEL,
2302	cb => \&IO::AIO::poll_cb,
2303	);
2304
2305	Event->timer (
2306	data => WF_AUTOCANCEL,	2913	data => WF_AUTOCANCEL,
2307	after => 0,	2914	cb => \&BDB::poll_cb,
2308	interval => 10,	2915	);
2309	cb => sub {	2916	BDB::min_parallel 8;
2310	(Coro::unblock_sub {	2917
2311	write_runtime	2918	BDB::set_sync_prepare {
2312	or warn "ERROR: unable to write runtime file: $!";	2919	my $status;
		2920	my $current = $Coro::current;
		2921	(
		2922	sub {
		2923	$status = $!;
		2924	$current->ready; undef $current;
		2925	},
		2926	sub {
		2927	Coro::schedule while defined $current;
		2928	$! = $status;
		2929	},
		2930	)
		2931	};
		2932
		2933	unless ($DB_ENV) {
		2934	$DB_ENV = BDB::db_env_create;
		2935
		2936	cf::sync_job {
		2937	eval {
		2938	BDB::db_env_open
		2939	$DB_ENV,
		2940	$BDBDIR,
		2941	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		2942	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		2943	0666;
		2944
		2945	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		2946
		2947	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		2948	$DB_ENV->set_lk_detect;
		2949	};
		2950
		2951	cf::cleanup "db_env_open(db): $@" if $@;
2313	})->();	2952	};
2314	},	2953	}
2315	);	2954	}
		2955
		2956	{
		2957	IO::AIO::min_parallel 8;
		2958
		2959	undef $Coro::AIO::WATCHER;
		2960	IO::AIO::max_poll_time $TICK * 0.1;
		2961	$AIO_POLL_WATCHER = Event->io (
		2962	reentrant => 0,
		2963	data => WF_AUTOCANCEL,
		2964	fd => IO::AIO::poll_fileno,
		2965	poll => 'r',
		2966	prio => 6,
		2967	cb => \&IO::AIO::poll_cb,
		2968	);
		2969	}
		2970
		2971	my $_log_backtrace;
		2972
		2973	sub _log_backtrace {
		2974	my ($msg, @addr) = @_;
		2975
		2976	$msg =~ s/\n//;
		2977
		2978	# limit the # of concurrent backtraces
		2979	if ($_log_backtrace < 2) {
		2980	++$_log_backtrace;
		2981	async {
		2982	my @bt = fork_call {
		2983	@addr = map { sprintf "%x", $_ } @addr;
		2984	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		2985	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		2986	or die "addr2line: $!";
		2987
		2988	my @funcs;
		2989	my @res = <$fh>;
		2990	chomp for @res;
		2991	while (@res) {
		2992	my ($func, $line) = splice @res, 0, 2, ();
		2993	push @funcs, "[$func] $line";
		2994	}
		2995
		2996	@funcs
		2997	};
		2998
		2999	LOG llevInfo, "[ABT] $msg\n";
		3000	LOG llevInfo, "[ABT] $_\n" for @bt;
		3001	--$_log_backtrace;
		3002	};
		3003	} else {
		3004	LOG llevInfo, "[ABT] $msg\n";
		3005	LOG llevInfo, "[ABT] [suppressed]\n";
		3006	}
		3007	}
		3008
		3009	# load additional modules
		3010	use cf::pod;
2316		3011
2317	END { cf::emergency_save }	3012	END { cf::emergency_save }
2318		3013
2319	1	3014	1
2320		3015

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