[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs.
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC

…		…
1	package cf;	1	package cf;
		2
		3	use utf8;
		4	use strict;
2		5
3	use Symbol;	6	use Symbol;
4	use List::Util;	7	use List::Util;
5	use Storable;	8	use Storable;
6	use Opcode;	9	use Opcode;
7	use Safe;	10	use Safe;
8	use Safe::Hole;	11	use Safe::Hole;
9		12
		13	use Coro 3.3;
		14	use Coro::Event;
		15	use Coro::Timer;
		16	use Coro::Signal;
		17	use Coro::Semaphore;
		18	use Coro::AIO;
		19
		20	use Fcntl;
10	use IO::AIO ();	21	use IO::AIO 2.31 ();
11	use YAML::Syck ();	22	use YAML::Syck ();
12	use Time::HiRes;	23	use Time::HiRes;
13	use Event;	24
14	$Event::Eval = 1; # no idea why this is required, but it is	25	use Event; $Event::Eval = 1; # no idea why this is required, but it is
15		26
16	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	27	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
17	$YAML::Syck::ImplicitUnicode = 1;	28	$YAML::Syck::ImplicitUnicode = 1;
18		29
19	use strict;	30	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority
20		31
21	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	32	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
22		33
23	our %COMMAND = ();	34	our %COMMAND = ();
24	our %COMMAND_TIME = ();	35	our %COMMAND_TIME = ();
25	our %EXTCMD = ();	36	our %EXTCMD = ();
26		37
27	_init_vars;
28
29	our @EVENT;	38	our @EVENT;
30	our $LIBDIR = datadir . "/ext";	39	our $LIBDIR = datadir . "/ext";
31		40
32	our $TICK = MAX_TIME * 1e-6;	41	our $TICK = MAX_TIME * 1e-6;
33	our $TICK_WATCHER;	42	our $TICK_WATCHER;
34	our $NEXT_TICK;	43	our $NEXT_TICK;
		44	our $NOW;
35		45
36	our %CFG;	46	our %CFG;
37		47
38	our $UPTIME; $UPTIME \|\|= time;	48	our $UPTIME; $UPTIME \|\|= time;
		49	our $RUNTIME;
		50
		51	our %MAP; # all maps
		52	our $LINK_MAP; # the special {link} map
		53	our $FREEZE;
		54
		55	binmode STDOUT;
		56	binmode STDERR;
		57
		58	# read virtual server time, if available
		59	unless ($RUNTIME \|\| !-e cf::localdir . "/runtime") {
		60	open my $fh, "<", cf::localdir . "/runtime"
		61	or die "unable to read runtime file: $!";
		62	$RUNTIME = <$fh> + 0.;
		63	}
		64
		65	mkdir cf::localdir;
		66	mkdir cf::localdir . "/" . cf::playerdir;
		67	mkdir cf::localdir . "/" . cf::tmpdir;
		68	mkdir cf::localdir . "/" . cf::uniquedir;
		69
		70	our %EXT_CORO;
39		71
40	#############################################################################	72	#############################################################################
41		73
42	=head2 GLOBAL VARIABLES	74	=head2 GLOBAL VARIABLES
43		75
44	=over 4	76	=over 4
45		77
46	=item $cf::UPTIME	78	=item $cf::UPTIME
47		79
48	The timestamp of the server start (so not actually an uptime).	80	The timestamp of the server start (so not actually an uptime).
		81
		82	=item $cf::RUNTIME
		83
		84	The time this server has run, starts at 0 and is increased by $cf::TICK on
		85	every server tick.
49		86
50	=item $cf::LIBDIR	87	=item $cf::LIBDIR
51		88
52	The perl library directory, where extensions and cf-specific modules can	89	The perl library directory, where extensions and cf-specific modules can
53	be found. It will be added to C<@INC> automatically.	90	be found. It will be added to C<@INC> automatically.
		91
		92	=item $cf::NOW
		93
		94	The time of the last (current) server tick.
54		95
55	=item $cf::TICK	96	=item $cf::TICK
56		97
57	The interval between server ticks, in seconds.	98	The interval between server ticks, in seconds.
58		99
66	=cut	107	=cut
67		108
68	BEGIN {	109	BEGIN {
69	*CORE::GLOBAL::warn = sub {	110	*CORE::GLOBAL::warn = sub {
70	my $msg = join "", @_;	111	my $msg = join "", @_;
		112	utf8::encode $msg;
		113
71	$msg .= "\n"	114	$msg .= "\n"
72	unless $msg =~ /\n$/;	115	unless $msg =~ /\n$/;
73		116
74	print STDERR "cfperl: $msg";
75	LOG llevError, "cfperl: $msg";	117	LOG llevError, "cfperl: $msg";
76	};	118	};
77	}	119	}
78		120
79	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	121	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
…		…
84	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	126	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
85		127
86	# we bless all objects into (empty) derived classes to force a method lookup	128	# we bless all objects into (empty) derived classes to force a method lookup
87	# within the Safe compartment.	129	# within the Safe compartment.
88	for my $pkg (qw(	130	for my $pkg (qw(
89	cf::global	131	cf::global cf::attachable
90	cf::object cf::object::player	132	cf::object cf::object::player
91	cf::client cf::player	133	cf::client cf::player
92	cf::arch cf::living	134	cf::arch cf::living
93	cf::map cf::party cf::region	135	cf::map cf::party cf::region
94	)) {	136	)) {
…		…
132	sub to_json($) {	174	sub to_json($) {
133	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	175	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
134	JSON::Syck::Dump $_[0]	176	JSON::Syck::Dump $_[0]
135	}	177	}
136		178
		179	=item cf::sync_job { BLOCK }
		180
		181	The design of crossfire+ requires that the main coro ($Coro::main) is
		182	always able to handle events or runnable, as crossfire+ is only partly
		183	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.
		184
		185	If it must be done, put the blocking parts into C<sync_job>. This will run
		186	the given BLOCK in another coroutine while waiting for the result. The
		187	server will be frozen during this time, so the block should either finish
		188	fast or be very important.
		189
		190	=cut
		191
		192	sub sync_job(&) {
		193	my ($job) = @_;
		194
		195	my $busy = 1;
		196	my @res;
		197
		198	# TODO: use suspend/resume instead
		199	local $FREEZE = 1;
		200
		201	my $coro = Coro::async {
		202	@res = eval { $job->() };
		203	warn $@ if $@;
		204	undef $busy;
		205	};
		206
		207	if ($Coro::current == $Coro::main) {
		208	$coro->prio (Coro::PRIO_MAX);
		209	while ($busy) {
		210	Coro::cede_notself;
		211	Event::one_event unless Coro::nready;
		212	}
		213	} else {
		214	$coro->join;
		215	}
		216
		217	wantarray ? @res : $res[0]
		218	}
		219
		220	=item $coro = cf::coro { BLOCK }
		221
		222	Creates and returns a new coro. This coro is automcatially being canceled
		223	when the extension calling this is being unloaded.
		224
		225	=cut
		226
		227	sub coro(&) {
		228	my $cb = shift;
		229
		230	my $coro; $coro = async {
		231	eval {
		232	$cb->();
		233	};
		234	warn $@ if $@;
		235	};
		236
		237	$coro->on_destroy (sub {
		238	delete $EXT_CORO{$coro+0};
		239	});
		240	$EXT_CORO{$coro+0} = $coro;
		241
		242	$coro
		243	}
		244
137	=back	245	=back
138		246
139	=cut	247	=cut
140		248
141	#############################################################################	249	#############################################################################
142		250
143	=head2 ATTACHABLE OBJECTS	251	=head2 ATTACHABLE OBJECTS
144		252
145	You can define and attach attachments to each "attachable" object in	253	Many objects in crossfire are so-called attachable objects. That means you can
146	crossfire+ (objects, players, clients, maps and the special "global"	254	attach callbacks/event handlers (a collection of which is called an "attachment")
		255	to it. All such attachable objects support the following methods.
		256
147	class). In the following description, CLASS can be any of C<global>,	257	In the following description, CLASS can be any of C<global>, C<object>
148	C<object> C<player>, C<client> or C<map>.	258	C<player>, C<client> or C<map> (i.e. the attachable objects in
		259	crossfire+).
149		260
150	=over 4	261	=over 4
151		262
		263	=item $attachable->attach ($attachment, key => $value...)
		264
		265	=item $attachable->detach ($attachment)
		266
		267	Attach/detach a pre-registered attachment to a specific object and give it
		268	the specified key/value pairs as arguments.
		269
		270	Example, attach a minesweeper attachment to the given object, making it a
		271	10x10 minesweeper game:
		272
		273	$obj->attach (minesweeper => width => 10, height => 10);
		274
		275	=item $bool = $attachable->attached ($name)
		276
		277	Checks wether the named attachment is currently attached to the object.
		278
		279	=item cf::CLASS->attach ...
		280
		281	=item cf::CLASS->detach ...
		282
		283	Define an anonymous attachment and attach it to all objects of the given
		284	CLASS. See the next function for an explanation of its arguments.
		285
		286	You can attach to global events by using the C<cf::global> class.
		287
		288	Example, log all player logins:
		289
		290	cf::player->attach (
		291	on_login => sub {
		292	my ($pl) = @_;
		293	...
		294	},
		295	);
		296
		297	Example, attach to the jeweler skill:
		298
		299	cf::object->attach (
		300	type => cf::SKILL,
		301	subtype => cf::SK_JEWELER,
		302	on_use_skill => sub {
		303	my ($sk, $ob, $part, $dir, $msg) = @_;
		304	...
		305	},
		306	);
		307
152	=item cf::CLASS::attachment $name, ...	308	=item cf::CLASS::attachment $name, ...
153		309
154	Register an attachment by name through which attachable objects can refer	310	Register an attachment by C<$name> through which attachable objects of the
155	to this attachment.	311	given CLASS can refer to this attachment.
156		312
157	=item $bool = $attachable->attached ($name)	313	Some classes such as crossfire maps and objects can specify attachments
		314	that are attached at load/instantiate time, thus the need for a name.
158		315
159	Checks wether the named attachment is currently attached to the object.
160
161	=item $attachable->attach ($attachment, key => $value...)
162
163	=item $attachable->detach ($attachment)
164
165	Attach/detach a pre-registered attachment either to a specific object
166	(C<$attachable>) or all objects of the given class (if C<$attachable> is a
167	class in a static method call).
168
169	You can attach to global events by using the C<cf::global> class.
170
171	These method calls expect any number of the following handler/hook	316	These calls expect any number of the following handler/hook descriptions:
172	descriptions:
173		317
174	=over 4	318	=over 4
175		319
176	=item prio => $number	320	=item prio => $number
177		321
…		…
203	package and register them. Only handlers for eevents supported by the	347	package and register them. Only handlers for eevents supported by the
204	object/class are recognised.	348	object/class are recognised.
205		349
206	=back	350	=back
207		351
		352	Example, define an attachment called "sockpuppet" that calls the given
		353	event handler when a monster attacks:
		354
		355	cf::object::attachment sockpuppet =>
		356	on_skill_attack => sub {
		357	my ($self, $victim) = @_;
		358	...
		359	}
		360	}
		361
		362	=item $attachable->valid
		363
		364	Just because you have a perl object does not mean that the corresponding
		365	C-level object still exists. If you try to access an object that has no
		366	valid C counterpart anymore you get an exception at runtime. This method
		367	can be used to test for existence of the C object part without causing an
		368	exception.
		369
208	=cut	370	=cut
209		371
210	# the following variables are defined in .xs and must not be re-created	372	# the following variables are defined in .xs and must not be re-created
211	our @CB_GLOBAL = (); # registry for all global events	373	our @CB_GLOBAL = (); # registry for all global events
		374	our @CB_ATTACHABLE = (); # registry for all attachables
212	our @CB_OBJECT = (); # all objects (should not be used except in emergency)	375	our @CB_OBJECT = (); # all objects (should not be used except in emergency)
213	our @CB_PLAYER = ();	376	our @CB_PLAYER = ();
214	our @CB_CLIENT = ();	377	our @CB_CLIENT = ();
215	our @CB_TYPE = (); # registry for type (cf-object class) based events	378	our @CB_TYPE = (); # registry for type (cf-object class) based events
216	our @CB_MAP = ();	379	our @CB_MAP = ();
217		380
218	my %attachment;	381	my %attachment;
219		382
220	sub _attach_cb($$$$) {	383	sub _attach_cb($$$$) {
221	my ($registry, $event, $prio, $cb) = @_;	384	my ($registry, $event, $prio, $cb) = @_;
…		…
226		389
227	@{$registry->[$event]} = sort	390	@{$registry->[$event]} = sort
228	{ $a->[0] cmp $b->[0] }	391	{ $a->[0] cmp $b->[0] }
229	@{$registry->[$event] \|\| []}, $cb;	392	@{$registry->[$event] \|\| []}, $cb;
230	}	393	}
		394
		395	# hack
		396	my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP;
231		397
232	# attach handles attaching event callbacks	398	# attach handles attaching event callbacks
233	# the only thing the caller has to do is pass the correct	399	# the only thing the caller has to do is pass the correct
234	# registry (== where the callback attaches to).	400	# registry (== where the callback attaches to).
235	sub _attach {	401	sub _attach {
…		…
237		403
238	my $object_type;	404	my $object_type;
239	my $prio = 0;	405	my $prio = 0;
240	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;	406	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
241		407
		408	#TODO: get rid of this hack
		409	if ($attachable_klass{$klass}) {
		410	%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT);
		411	}
		412
242	while (@arg) {	413	while (@arg) {
243	my $type = shift @arg;	414	my $type = shift @arg;
244		415
245	if ($type eq "prio") {	416	if ($type eq "prio") {
246	$prio = shift @arg;	417	$prio = shift @arg;
…		…
321	my ($obj, $name) = @_;	492	my ($obj, $name) = @_;
322		493
323	exists $obj->{_attachment}{$name}	494	exists $obj->{_attachment}{$name}
324	}	495	}
325		496
326	for my $klass (qw(GLOBAL OBJECT PLAYER CLIENT MAP)) {	497	for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) {
327	eval "#line " . __LINE__ . " 'cf.pm'	498	eval "#line " . __LINE__ . " 'cf.pm'
328	sub cf::\L$klass\E::_attach_registry {	499	sub cf::\L$klass\E::_attach_registry {
329	(\\\@CB_$klass, KLASS_$klass)	500	(\\\@CB_$klass, KLASS_$klass)
330	}	501	}
331		502
…		…
367	}	538	}
368		539
369	0	540	0
370	}	541	}
371		542
372	=item $bool = cf::invoke EVENT_GLOBAL_XXX, ...	543	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
373		544
374	=item $bool = $object->invoke (EVENT_OBJECT_XXX, ...)
375
376	=item $bool = $player->invoke (EVENT_PLAYER_XXX, ...)
377
378	=item $bool = $client->invoke (EVENT_CLIENT_XXX, ...)	545	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
379		546
380	=item $bool = $map->invoke (EVENT_MAP_XXX, ...)
381
382	Generate a global/object/player/map-specific event with the given arguments.	547	Generate an object-specific event with the given arguments.
383		548
384	This API is preliminary (most likely, the EVENT_KLASS_xxx prefix will be	549	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
385	removed in future versions), and there is no public API to access override	550	removed in future versions), and there is no public API to access override
386	results (if you must, access C<@cf::invoke_results> directly).	551	results (if you must, access C<@cf::invoke_results> directly).
387		552
388	=back	553	=back
389		554
390	=cut	555	=cut
391		556
392	#############################################################################	557	#############################################################################
393
394	=head2 METHODS VALID FOR ALL ATTACHABLE OBJECTS
395
396	Attachable objects includes objects, players, clients and maps.
397
398	=over 4
399
400	=item $object->valid
401
402	Just because you have a perl object does not mean that the corresponding
403	C-level object still exists. If you try to access an object that has no
404	valid C counterpart anymore you get an exception at runtime. This method
405	can be used to test for existence of the C object part without causing an
406	exception.
407
408	=back
409
410	=cut
411
412	#############################################################################
413	# object support	558	# object support
414		559
415	sub instantiate {
416	my ($obj, $data) = @_;
417
418	$data = from_json $data;
419
420	for (@$data) {
421	my ($name, $args) = @$_;
422
423	$obj->attach ($name, %{$args \|\| {} });
424	}
425	}
426
427	# basically do the same as instantiate, without calling instantiate
428	sub reattach {	560	sub reattach {
		561	# basically do the same as instantiate, without calling instantiate
429	my ($obj) = @_;	562	my ($obj) = @_;
		563
430	my $registry = $obj->registry;	564	my $registry = $obj->registry;
431		565
432	@$registry = ();	566	@$registry = ();
433		567
434	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };	568	delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} \|\| {} };
…		…
443	warn "object uses attachment '$name' that is not available, postponing.\n";	577	warn "object uses attachment '$name' that is not available, postponing.\n";
444	}	578	}
445	}	579	}
446	}	580	}
447		581
448	sub object_freezer_save {	582	cf::attachable->attach (
449	my ($filename, $rdata, $objs) = @_;
450
451	if (length $$rdata) {
452	warn sprintf "saving %s (%d,%d)\n",
453	$filename, length $$rdata, scalar @$objs;
454
455	if (open my $fh, ">:raw", "$filename~") {
456	chmod SAVE_MODE, $fh;
457	syswrite $fh, $$rdata;
458	close $fh;
459
460	if (@$objs && open my $fh, ">:raw", "$filename.pst~") {
461	chmod SAVE_MODE, $fh;
462	syswrite $fh, Storable::nfreeze { version => 1, objs => $objs };
463	close $fh;
464	rename "$filename.pst~", "$filename.pst";
465	} else {
466	unlink "$filename.pst";
467	}
468
469	rename "$filename~", $filename;
470	} else {
471	warn "FATAL: $filename~: $!\n";
472	}
473	} else {
474	unlink $filename;
475	unlink "$filename.pst";
476	}
477	}
478
479	sub object_freezer_as_string {
480	my ($rdata, $objs) = @_;
481
482	use Data::Dumper;
483
484	$$rdata . Dumper $objs
485	}
486
487	sub object_thawer_load {
488	my ($filename) = @_;
489
490	local $/;
491
492	my $av;
493
494	#TODO: use sysread etc.
495	if (open my $data, "<:raw:perlio", $filename) {
496	$data = <$data>;
497	if (open my $pst, "<:raw:perlio", "$filename.pst") {
498	$av = eval { (Storable::thaw <$pst>)->{objs} };
499	}
500	return ($data, $av);
501	}
502
503	()
504	}
505
506	cf::object->attach (
507	prio => -1000000,	583	prio => -1000000,
		584	on_instantiate => sub {
		585	my ($obj, $data) = @_;
		586
		587	$data = from_json $data;
		588
		589	for (@$data) {
		590	my ($name, $args) = @$_;
		591
		592	$obj->attach ($name, %{$args \|\| {} });
		593	}
		594	},
		595	on_reattach => \&reattach,
508	on_clone => sub {	596	on_clone => sub {
509	my ($src, $dst) = @_;	597	my ($src, $dst) = @_;
510		598
511	@{$dst->registry} = @{$src->registry};	599	@{$dst->registry} = @{$src->registry};
512		600
…		…
514		602
515	%{$dst->{_attachment}} = %{$src->{_attachment}}	603	%{$dst->{_attachment}} = %{$src->{_attachment}}
516	if exists $src->{_attachment};	604	if exists $src->{_attachment};
517	},	605	},
518	);	606	);
		607
		608	sub object_freezer_save {
		609	my ($filename, $rdata, $objs) = @_;
		610
		611	sync_job {
		612	if (length $$rdata) {
		613	warn sprintf "saving %s (%d,%d)\n",
		614	$filename, length $$rdata, scalar @$objs;
		615
		616	if (my $fh = aio_open "$filename~", O_WRONLY \| O_CREAT, 0600) {
		617	chmod SAVE_MODE, $fh;
		618	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		619	aio_fsync $fh;
		620	close $fh;
		621
		622	if (@$objs) {
		623	if (my $fh = aio_open "$filename.pst~", O_WRONLY \| O_CREAT, 0600) {
		624	chmod SAVE_MODE, $fh;
		625	my $data = Storable::nfreeze { version => 1, objs => $objs };
		626	aio_write $fh, 0, (length $data), $data, 0;
		627	aio_fsync $fh;
		628	close $fh;
		629	aio_rename "$filename.pst~", "$filename.pst";
		630	}
		631	} else {
		632	aio_unlink "$filename.pst";
		633	}
		634
		635	aio_rename "$filename~", $filename;
		636	} else {
		637	warn "FATAL: $filename~: $!\n";
		638	}
		639	} else {
		640	aio_unlink $filename;
		641	aio_unlink "$filename.pst";
		642	}
		643	}
		644	}
		645
		646	sub object_freezer_as_string {
		647	my ($rdata, $objs) = @_;
		648
		649	use Data::Dumper;
		650
		651	$$rdata . Dumper $objs
		652	}
		653
		654	sub object_thawer_load {
		655	my ($filename) = @_;
		656
		657	my ($data, $av);
		658
		659	(aio_load $filename, $data) >= 0
		660	or return;
		661
		662	unless (aio_stat "$filename.pst") {
		663	(aio_load "$filename.pst", $av) >= 0
		664	or return;
		665	$av = eval { (Storable::thaw <$av>)->{objs} };
		666	}
		667
		668	return ($data, $av);
		669	}
519		670
520	#############################################################################	671	#############################################################################
521	# command handling &c	672	# command handling &c
522		673
523	=item cf::register_command $name => \&callback($ob,$args);	674	=item cf::register_command $name => \&callback($ob,$args);
…		…
712		863
713	=head2 CORE EXTENSIONS	864	=head2 CORE EXTENSIONS
714		865
715	Functions and methods that extend core crossfire objects.	866	Functions and methods that extend core crossfire objects.
716		867
		868	=head3 cf::player
		869
717	=over 4	870	=over 4
718		871
719	=item cf::player::exists $login	872	=item cf::player::exists $login
720		873
721	Returns true when the given account exists.	874	Returns true when the given account exists.
…		…
725	sub cf::player::exists($) {	878	sub cf::player::exists($) {
726	cf::player::find $_[0]	879	cf::player::find $_[0]
727	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;	880	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
728	}	881	}
729		882
		883	=item $player->ext_reply ($msgid, $msgtype, %msg)
		884
		885	Sends an ext reply to the player.
		886
		887	=cut
		888
		889	sub cf::player::ext_reply($$$%) {
		890	my ($self, $id, %msg) = @_;
		891
		892	$msg{msgid} = $id;
		893
		894	$self->send ("ext " . to_json \%msg);
		895	}
		896
		897	=back
		898
		899	=head3 cf::object::player
		900
		901	=over 4
		902
730	=item $player_object->reply ($npc, $msg[, $flags])	903	=item $player_object->reply ($npc, $msg[, $flags])
731		904
732	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	905	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
733	can be C<undef>. Does the right thing when the player is currently in a	906	can be C<undef>. Does the right thing when the player is currently in a
734	dialogue with the given NPC character.	907	dialogue with the given NPC character.
735		908
736	=cut	909	=cut
737		910
738	# rough implementation of a future "reply" method that works	911	# rough implementation of a future "reply" method that works
739	# with dialog boxes.	912	# with dialog boxes.
		913	#TODO: the first argument must go, split into a $npc->reply_to ( method
740	sub cf::object::player::reply($$$;$) {	914	sub cf::object::player::reply($$$;$) {
741	my ($self, $npc, $msg, $flags) = @_;	915	my ($self, $npc, $msg, $flags) = @_;
742		916
743	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;	917	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
744		918
…		…
748	$msg = $npc->name . " says: $msg" if $npc;	922	$msg = $npc->name . " says: $msg" if $npc;
749	$self->message ($msg, $flags);	923	$self->message ($msg, $flags);
750	}	924	}
751	}	925	}
752		926
753	=item $player->ext_reply ($msgid, $msgtype, %msg)
754
755	Sends an ext reply to the player.
756
757	=cut
758
759	sub cf::player::ext_reply($$$%) {
760	my ($self, $id, %msg) = @_;
761
762	$msg{msgid} = $id;
763
764	$self->send ("ext " . to_json \%msg);
765	}
766
767	=item $player_object->may ("access")	927	=item $player_object->may ("access")
768		928
769	Returns wether the given player is authorized to access resource "access"	929	Returns wether the given player is authorized to access resource "access"
770	(e.g. "command_wizcast").	930	(e.g. "command_wizcast").
771		931
…		…
778	(ref $cf::CFG{"may_$access"}	938	(ref $cf::CFG{"may_$access"}
779	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	939	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
780	: $cf::CFG{"may_$access"})	940	: $cf::CFG{"may_$access"})
781	}	941	}
782		942
783	=cut	943	=head3 cf::client
784		944
785	#############################################################################	945	=over 4
		946
		947	=item $client->send_drawinfo ($text, $flags)
		948
		949	Sends a drawinfo packet to the client. Circumvents output buffering so
		950	should not be used under normal circumstances.
		951
		952	=cut
		953
		954	sub cf::client::send_drawinfo {
		955	my ($self, $text, $flags) = @_;
		956
		957	utf8::encode $text;
		958	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);
		959	}
		960
		961
		962	=item $success = $client->query ($flags, "text", \&cb)
		963
		964	Queues a query to the client, calling the given callback with
		965	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
		966	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
		967
		968	Queries can fail, so check the return code. Or don't, as queries will become
		969	reliable at some point in the future.
		970
		971	=cut
		972
		973	sub cf::client::query {
		974	my ($self, $flags, $text, $cb) = @_;
		975
		976	return unless $self->state == ST_PLAYING
		977	\|\| $self->state == ST_SETUP
		978	\|\| $self->state == ST_CUSTOM;
		979
		980	$self->state (ST_CUSTOM);
		981
		982	utf8::encode $text;
		983	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
		984
		985	$self->send_packet ($self->{query_queue}[0][0])
		986	if @{ $self->{query_queue} } == 1;
		987	}
		988
		989	cf::client->attach (
		990	on_reply => sub {
		991	my ($ns, $msg) = @_;
		992
		993	# this weird shuffling is so that direct followup queries
		994	# get handled first
		995	my $queue = delete $ns->{query_queue};
		996
		997	(shift @$queue)->[1]->($msg);
		998
		999	push @{ $ns->{query_queue} }, @$queue;
		1000
		1001	if (@{ $ns->{query_queue} } == @$queue) {
		1002	if (@$queue) {
		1003	$ns->send_packet ($ns->{query_queue}[0][0]);
		1004	} else {
		1005	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
		1006	}
		1007	}
		1008	},
		1009	);
		1010
		1011	=item $client->coro (\&cb)
		1012
		1013	Create a new coroutine, running the specified callback. The coroutine will
		1014	be automatically cancelled when the client gets destroyed (e.g. on logout,
		1015	or loss of connection).
		1016
		1017	=cut
		1018
		1019	sub cf::client::coro {
		1020	my ($self, $cb) = @_;
		1021
		1022	my $coro; $coro = async {
		1023	eval {
		1024	$cb->();
		1025	};
		1026	warn $@ if $@;
		1027	};
		1028
		1029	$coro->on_destroy (sub {
		1030	delete $self->{_coro}{$coro+0};
		1031	});
		1032
		1033	$self->{_coro}{$coro+0} = $coro;
		1034
		1035	$coro
		1036	}
		1037
		1038	cf::client->attach (
		1039	on_destroy => sub {
		1040	my ($ns) = @_;
		1041
		1042	$_->cancel for values %{ (delete $ns->{_coro}) \|\| {} };
		1043	},
		1044	);
		1045
		1046	=back
		1047
786		1048
787	=head2 SAFE SCRIPTING	1049	=head2 SAFE SCRIPTING
788		1050
789	Functions that provide a safe environment to compile and execute	1051	Functions that provide a safe environment to compile and execute
790	snippets of perl code without them endangering the safety of the server	1052	snippets of perl code without them endangering the safety of the server
…		…
1019	}	1281	}
1020		1282
1021	#############################################################################	1283	#############################################################################
1022	# initialisation	1284	# initialisation
1023		1285
1024	sub _perl_reload(&) {	1286	sub perl_reload() {
1025	my ($msg) = @_;	1287	# can/must only be called in main
		1288	if ($Coro::current != $Coro::main) {
		1289	warn "can only reload from main coroutine\n";
		1290	return;
		1291	}
1026		1292
1027	$msg->("reloading...");	1293	warn "reloading...";
		1294
		1295	local $FREEZE = 1;
		1296	cf::emergency_save;
1028		1297
1029	eval {	1298	eval {
		1299	# if anything goes wrong in here, we should simply crash as we already saved
		1300
1030	# cancel all watchers	1301	# cancel all watchers
1031	for (Event::all_watchers) {	1302	for (Event::all_watchers) {
1032	$_->cancel if $_->data & WF_AUTOCANCEL;	1303	$_->cancel if $_->data & WF_AUTOCANCEL;
1033	}	1304	}
1034		1305
		1306	# cancel all extension coros
		1307	$_->cancel for values %EXT_CORO;
		1308	%EXT_CORO = ();
		1309
1035	# unload all extensions	1310	# unload all extensions
1036	for (@exts) {	1311	for (@exts) {
1037	$msg->("unloading <$_>");	1312	warn "unloading <$_>";
1038	unload_extension $_;	1313	unload_extension $_;
1039	}	1314	}
1040		1315
1041	# unload all modules loaded from $LIBDIR	1316	# unload all modules loaded from $LIBDIR
1042	while (my ($k, $v) = each %INC) {	1317	while (my ($k, $v) = each %INC) {
1043	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	1318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
1044		1319
1045	$msg->("removing <$k>");	1320	warn "removing <$k>";
1046	delete $INC{$k};	1321	delete $INC{$k};
1047		1322
1048	$k =~ s/\.pm$//;	1323	$k =~ s/\.pm$//;
1049	$k =~ s/\//::/g;	1324	$k =~ s/\//::/g;
1050		1325
…		…
1055	Symbol::delete_package $k;	1330	Symbol::delete_package $k;
1056	}	1331	}
1057		1332
1058	# sync database to disk	1333	# sync database to disk
1059	cf::db_sync;	1334	cf::db_sync;
		1335	IO::AIO::flush;
1060		1336
1061	# get rid of safe::, as good as possible	1337	# get rid of safe::, as good as possible
1062	Symbol::delete_package "safe::$_"	1338	Symbol::delete_package "safe::$_"
1063	for qw(cf::object cf::object::player cf::player cf::map cf::party cf::region);	1339	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1064		1340
1065	# remove register_script_function callbacks	1341	# remove register_script_function callbacks
1066	# TODO	1342	# TODO
1067		1343
1068	# unload cf.pm "a bit"	1344	# unload cf.pm "a bit"
…		…
1071	# don't, removes xs symbols, too,	1347	# don't, removes xs symbols, too,
1072	# and global variables created in xs	1348	# and global variables created in xs
1073	#Symbol::delete_package __PACKAGE__;	1349	#Symbol::delete_package __PACKAGE__;
1074		1350
1075	# reload cf.pm	1351	# reload cf.pm
1076	$msg->("reloading cf.pm");	1352	warn "reloading cf.pm";
1077	require cf;	1353	require cf;
		1354	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
1078		1355
1079	# load config and database again	1356	# load config and database again
1080	cf::cfg_load;	1357	cf::cfg_load;
1081	cf::db_load;	1358	cf::db_load;
1082		1359
1083	# load extensions	1360	# load extensions
1084	$msg->("load extensions");	1361	warn "load extensions";
1085	cf::load_extensions;	1362	cf::load_extensions;
1086		1363
1087	# reattach attachments to objects	1364	# reattach attachments to objects
1088	$msg->("reattach");	1365	warn "reattach";
1089	_global_reattach;	1366	_global_reattach;
1090	};	1367	};
1091	$msg->($@) if $@;
1092		1368
1093	$msg->("reloaded");	1369	if ($@) {
		1370	warn $@;
		1371	warn "error while reloading, exiting.";
		1372	exit 1;
		1373	}
		1374
		1375	warn "reloaded successfully";
1094	};	1376	};
1095
1096	sub perl_reload() {
1097	_perl_reload {
1098	warn $_[0];
1099	print "$_[0]\n";
1100	};
1101	}
1102		1377
1103	register "<global>", __PACKAGE__;	1378	register "<global>", __PACKAGE__;
1104		1379
1105	register_command "perl-reload" => sub {	1380	register_command "perl-reload" => sub {
1106	my ($who, $arg) = @_;	1381	my ($who, $arg) = @_;
1107		1382
1108	if ($who->flag (FLAG_WIZ)) {	1383	if ($who->flag (FLAG_WIZ)) {
		1384	$who->message ("start of reload.");
1109	_perl_reload {	1385	perl_reload;
1110	warn $_[0];	1386	$who->message ("end of reload.");
1111	$who->message ($_[0]);
1112	};
1113	}	1387	}
1114	};	1388	};
1115		1389
1116	unshift @INC, $LIBDIR;	1390	unshift @INC, $LIBDIR;
1117		1391
1118	$TICK_WATCHER = Event->timer (	1392	$TICK_WATCHER = Event->timer (
		1393	reentrant => 0,
1119	prio => 0,	1394	prio => 0,
1120	at => $NEXT_TICK \|\| 1,	1395	at => $NEXT_TICK \|\| $TICK,
1121	data => WF_AUTOCANCEL,	1396	data => WF_AUTOCANCEL,
1122	cb => sub {	1397	cb => sub {
		1398	unless ($FREEZE) {
1123	cf::server_tick; # one server iteration	1399	cf::server_tick; # one server iteration
		1400	$RUNTIME += $TICK;
		1401	}
1124		1402
1125	my $NOW = Event::time;
1126	$NEXT_TICK += $TICK;	1403	$NEXT_TICK += $TICK;
1127		1404
1128	# if we are delayed by four ticks or more, skip them all	1405	# if we are delayed by four ticks or more, skip them all
1129	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;	1406	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
1130		1407
1131	$TICK_WATCHER->at ($NEXT_TICK);	1408	$TICK_WATCHER->at ($NEXT_TICK);
1132	$TICK_WATCHER->start;	1409	$TICK_WATCHER->start;
1133	},	1410	},
1134	);	1411	);
…		…
1139	poll => 'r',	1416	poll => 'r',
1140	prio => 5,	1417	prio => 5,
1141	data => WF_AUTOCANCEL,	1418	data => WF_AUTOCANCEL,
1142	cb => \&IO::AIO::poll_cb);	1419	cb => \&IO::AIO::poll_cb);
1143		1420
		1421	# we must not ever block the main coroutine
		1422	$Coro::idle = sub {
		1423	#Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#
		1424	warn "FATAL: Coro::idle was called, major BUG\n";
		1425	(Coro::unblock_sub {
		1426	Event::one_event;
		1427	})->();
		1428	};
		1429
1144	1	1430	1
1145		1431

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs. Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.93 by root, Thu Dec 21 22:41:35 2006 UTC vs.
Revision 1.107 by root, Sun Dec 31 18:10:40 2006 UTC