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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.277 by root, Sun Jun 10 04:24:50 2007 UTC

3use utf8; 3use utf8;
4use strict; 4use strict;
5 5
6use Symbol; 6use Symbol;
7use List::Util; 7use List::Util;
8use Socket;
8use Storable; 9use Storable;
10use Event;
9use Opcode; 11use Opcode;
10use Safe; 12use Safe;
11use Safe::Hole; 13use Safe::Hole;
12 14
13use Coro 3.3 (); 15use Coro 3.61 ();
16use Coro::State;
17use Coro::Handle;
14use Coro::Event; 18use Coro::Event;
15use Coro::Timer; 19use Coro::Timer;
16use Coro::Signal; 20use Coro::Signal;
17use Coro::Semaphore; 21use Coro::Semaphore;
18use Coro::AIO; 22use Coro::AIO;
23use Coro::Storable;
19 24
25use BDB ();
20use Data::Dumper; 26use Data::Dumper;
21use Digest::MD5; 27use Digest::MD5;
22use Fcntl; 28use Fcntl;
29use YAML::Syck ();
23use IO::AIO 2.32 (); 30use IO::AIO 2.32 ();
24use YAML::Syck ();
25use Time::HiRes; 31use Time::HiRes;
32use Compress::LZF;
26 33
34# configure various modules to our taste
35#
36$Storable::canonical = 1; # reduce rsync transfers
37Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
38Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39
27use 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
28
29sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30 41
31# 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?
32$YAML::Syck::ImplicitUnicode = 1; 43$YAML::Syck::ImplicitUnicode = 1;
33 44
34$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 45$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46
47sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
35 48
36our %COMMAND = (); 49our %COMMAND = ();
37our %COMMAND_TIME = (); 50our %COMMAND_TIME = ();
38 51
39our @EXTS = (); # list of extension package names 52our @EXTS = (); # list of extension package names
40our %EXTCMD = (); 53our %EXTCMD = ();
41our %EXT_CORO = (); # coroutines bound to extensions 54our %EXT_CORO = (); # coroutines bound to extensions
42our %EXT_MAP = (); # pluggable maps 55our %EXT_MAP = (); # pluggable maps
43 56
57our $RELOAD; # number of reloads so far
44our @EVENT; 58our @EVENT;
45our $LIBDIR = datadir . "/ext";
46 59
47our $TICK = MAX_TIME * 1e-6; 60our $CONFDIR = confdir;
61our $DATADIR = datadir;
62our $LIBDIR = "$DATADIR/ext";
63our $PODDIR = "$DATADIR/pod";
64our $MAPDIR = "$DATADIR/" . mapdir;
65our $LOCALDIR = localdir;
66our $TMPDIR = "$LOCALDIR/" . tmpdir;
67our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69our $RANDOMDIR = "$LOCALDIR/random";
70our $BDBDIR = "$LOCALDIR/db";
71
72our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48our $TICK_WATCHER; 73our $TICK_WATCHER;
74our $AIO_POLL_WATCHER;
75our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49our $NEXT_TICK; 76our $NEXT_TICK;
50our $NOW; 77our $NOW;
78our $USE_FSYNC = 1; # use fsync to write maps - default off
79
80our $BDB_POLL_WATCHER;
81our $DB_ENV;
51 82
52our %CFG; 83our %CFG;
53 84
54our $UPTIME; $UPTIME ||= time; 85our $UPTIME; $UPTIME ||= time;
55our $RUNTIME; 86our $RUNTIME;
56 87
57our %PLAYER; # all users 88our %PLAYER; # all users
58our %MAP; # all maps 89our %MAP; # all maps
59our $LINK_MAP; # the special {link} map, which is always available 90our $LINK_MAP; # the special {link} map, which is always available
60our $RANDOM_MAPS = cf::localdir . "/random";
61
62our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64 91
65# used to convert map paths into valid unix filenames by replacing / by ∕ 92# used to convert map paths into valid unix filenames by replacing / by ∕
66our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 93our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67 94
95our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96our $LOADAVG; # same thing, but with alpha-smoothing
97our $tick_start; # for load detecting purposes
98
68binmode STDOUT; 99binmode STDOUT;
69binmode STDERR; 100binmode STDERR;
70 101
71# read virtual server time, if available 102# read virtual server time, if available
72unless ($RUNTIME || !-e cf::localdir . "/runtime") { 103unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
73 open my $fh, "<", cf::localdir . "/runtime" 104 open my $fh, "<", "$LOCALDIR/runtime"
74 or die "unable to read runtime file: $!"; 105 or die "unable to read runtime file: $!";
75 $RUNTIME = <$fh> + 0.; 106 $RUNTIME = <$fh> + 0.;
76} 107}
77 108
78mkdir cf::localdir; 109mkdir $_
79mkdir cf::localdir . "/" . cf::playerdir; 110 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
80mkdir cf::localdir . "/" . cf::tmpdir;
81mkdir cf::localdir . "/" . cf::uniquedir;
82mkdir $RANDOM_MAPS;
83 111
84our $EMERGENCY_POSITION; 112our $EMERGENCY_POSITION;
113
114sub cf::map::normalise;
85 115
86############################################################################# 116#############################################################################
87 117
88=head2 GLOBAL VARIABLES 118=head2 GLOBAL VARIABLES
89 119
96=item $cf::RUNTIME 126=item $cf::RUNTIME
97 127
98The time this server has run, starts at 0 and is increased by $cf::TICK on 128The time this server has run, starts at 0 and is increased by $cf::TICK on
99every server tick. 129every server tick.
100 130
101=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
102 134
103The perl library directory, where extensions and cf-specific modules can 135Various directories - "/etc", read-only install directory, perl-library
104be found. It will be added to C<@INC> automatically. 136directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
137unique-items directory, player file directory, random maps directory and
138database environment.
105 139
106=item $cf::NOW 140=item $cf::NOW
107 141
108The time of the last (current) server tick. 142The time of the last (current) server tick.
109 143
110=item $cf::TICK 144=item $cf::TICK
111 145
112The interval between server ticks, in seconds. 146The interval between server ticks, in seconds.
147
148=item $cf::LOADAVG
149
150The 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
152objects per tick. Healthy values are < 0.5.
153
154=item $cf::LOAD
155
156The raw value load value from the last tick.
113 157
114=item %cf::CFG 158=item %cf::CFG
115 159
116Configuration for the server, loaded from C</etc/crossfire/config>, or 160Configuration for the server, loaded from C</etc/crossfire/config>, or
117from wherever your confdir points to. 161from wherever your confdir points to.
118 162
119=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE 163=item cf::wait_for_tick, cf::wait_for_tick_begin
120 164
121These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK) 165These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick 166returns directly I<after> the tick processing (and consequently, can only wake one process
123processing has been done. Call C<< ->wait >> on them to maximise the 167per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124window of cpu time available, or simply to synchronise to the server tick.
125 168
126=back 169=back
127 170
128=cut 171=cut
129 172
130BEGIN { 173BEGIN {
131 *CORE::GLOBAL::warn = sub { 174 *CORE::GLOBAL::warn = sub {
132 my $msg = join "", @_; 175 my $msg = join "", @_;
133 utf8::encode $msg;
134 176
135 $msg .= "\n" 177 $msg .= "\n"
136 unless $msg =~ /\n$/; 178 unless $msg =~ /\n$/;
137 179
180 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181
182 utf8::encode $msg;
138 LOG llevError, $msg; 183 LOG llevError, $msg;
139 }; 184 };
140} 185}
141 186
142@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 187@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 188@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 189@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 190@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; 191@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
192@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; 193@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148 194
149# we bless all objects into (empty) derived classes to force a method lookup 195# we bless all objects into (empty) derived classes to force a method lookup
150# within the Safe compartment. 196# within the Safe compartment.
151for my $pkg (qw( 197for my $pkg (qw(
152 cf::global cf::attachable 198 cf::global cf::attachable
188 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 234 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189 $d 235 $d
190 } || "[unable to dump $_[0]: '$@']"; 236 } || "[unable to dump $_[0]: '$@']";
191} 237}
192 238
193use JSON::Syck (); # TODO# replace by JSON::PC once working 239use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
194 240
195=item $ref = cf::from_json $json 241=item $ref = cf::from_json $json
196 242
197Converts a JSON string into the corresponding perl data structure. 243Converts a JSON string into the corresponding perl data structure.
198 244
199=cut
200
201sub from_json($) {
202 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203 JSON::Syck::Load $_[0]
204}
205
206=item $json = cf::to_json $ref 245=item $json = cf::to_json $ref
207 246
208Converts a perl data structure into its JSON representation. 247Converts a perl data structure into its JSON representation.
209
210=cut
211
212sub to_json($) {
213 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
214 JSON::Syck::Dump $_[0]
215}
216 248
217=item cf::lock_wait $string 249=item cf::lock_wait $string
218 250
219Wait until the given lock is available. See cf::lock_acquire. 251Wait until the given lock is available. See cf::lock_acquire.
220 252
226returned. 258returned.
227 259
228Lock names should begin with a unique identifier (for example, cf::map::find 260Lock names should begin with a unique identifier (for example, cf::map::find
229uses map_find and cf::map::load uses map_load). 261uses map_find and cf::map::load uses map_load).
230 262
263=item $locked = cf::lock_active $string
264
265Return true if the lock is currently active, i.e. somebody has locked it.
266
231=cut 267=cut
232 268
233our %LOCK; 269our %LOCK;
234 270
235sub lock_wait($) { 271sub lock_wait($) {
254 # wake up all waiters, to be on the safe side 290 # wake up all waiters, to be on the safe side
255 $_->ready for @{ delete $LOCK{$key} }; 291 $_->ready for @{ delete $LOCK{$key} };
256 } 292 }
257} 293}
258 294
295sub lock_active($) {
296 my ($key) = @_;
297
298 ! ! $LOCK{$key}
299}
300
259sub freeze_mainloop { 301sub freeze_mainloop {
260 return unless $TICK_WATCHER->is_active; 302 return unless $TICK_WATCHER->is_active;
261 303
262 my $guard = Coro::guard { $TICK_WATCHER->start }; 304 my $guard = Coro::guard {
305 $TICK_WATCHER->start;
306 };
263 $TICK_WATCHER->stop; 307 $TICK_WATCHER->stop;
264 $guard 308 $guard
265} 309}
266 310
267=item cf::async { BLOCK } 311=item cf::async { BLOCK }
289 333
290sub sync_job(&) { 334sub sync_job(&) {
291 my ($job) = @_; 335 my ($job) = @_;
292 336
293 if ($Coro::current == $Coro::main) { 337 if ($Coro::current == $Coro::main) {
338 my $time = Event::time;
339
294 # this is the main coro, too bad, we have to block 340 # this is the main coro, too bad, we have to block
295 # till the operation succeeds, freezing the server :/ 341 # till the operation succeeds, freezing the server :/
296 342
297 # TODO: use suspend/resume instead 343 # TODO: use suspend/resume instead
298 # (but this is cancel-safe) 344 # (but this is cancel-safe)
309 355
310 while ($busy) { 356 while ($busy) {
311 Coro::cede or Event::one_event; 357 Coro::cede or Event::one_event;
312 } 358 }
313 359
360 $time = Event::time - $time;
361
362 LOG llevError | logBacktrace, Carp::longmess "long sync job"
363 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
364
365 $tick_start += $time; # do not account sync jobs to server load
366
314 wantarray ? @res : $res[0] 367 wantarray ? @res : $res[0]
315 } else { 368 } else {
316 # we are in another coroutine, how wonderful, everything just works 369 # we are in another coroutine, how wonderful, everything just works
317 370
318 $job->() 371 $job->()
338 391
339 $coro 392 $coro
340} 393}
341 394
342sub write_runtime { 395sub write_runtime {
343 return unless $TICK_WATCHER->is_active; 396 my $runtime = "$LOCALDIR/runtime";
344 397
345 my $runtime = cf::localdir . "/runtime"; 398 # first touch the runtime file to show we are still running:
399 # the fsync below can take a very very long time.
400
401 IO::AIO::aio_utime $runtime, undef, undef;
402
403 my $guard = cf::lock_acquire "write_runtime";
346 404
347 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 405 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
348 or return; 406 or return;
349 407
408 my $value = $cf::RUNTIME + 90 + 10;
350 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 409 # 10 is the runtime save interval, for a monotonic clock
410 # 60 allows for the watchdog to kill the server.
411
351 (aio_write $fh, 0, (length $value), $value, 0) <= 0 412 (aio_write $fh, 0, (length $value), $value, 0) <= 0
352 and return; 413 and return;
353 414
415 # always fsync - this file is important
354 aio_fsync $fh 416 aio_fsync $fh
355 and return; 417 and return;
356 418
419 # touch it again to show we are up-to-date
420 aio_utime $fh, undef, undef;
421
357 close $fh 422 close $fh
358 or return; 423 or return;
359 424
360 aio_rename "$runtime~", $runtime 425 aio_rename "$runtime~", $runtime
361 and return; 426 and return;
362 427
428 warn "runtime file written.\n";
429
363 1 430 1
431}
432
433=item cf::datalog type => key => value, ...
434
435Log a datalog packet of the given type with the given key-value pairs.
436
437=cut
438
439sub datalog($@) {
440 my ($type, %kv) = @_;
441 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364} 442}
365 443
366=back 444=back
367 445
368=cut 446=cut
499our @CB_TYPE = (); # registry for type (cf-object class) based events 577our @CB_TYPE = (); # registry for type (cf-object class) based events
500our @CB_MAP = (); 578our @CB_MAP = ();
501 579
502my %attachment; 580my %attachment;
503 581
582sub cf::attachable::thawer_merge {
583 # simply override everything except _meta
584 local $_[0]{_meta};
585 %{$_[0]} = %{$_[1]};
586}
587
504sub _attach_cb($$$$) { 588sub _attach_cb($$$$) {
505 my ($registry, $event, $prio, $cb) = @_; 589 my ($registry, $event, $prio, $cb) = @_;
506 590
507 use sort 'stable'; 591 use sort 'stable';
508 592
542 $registry = $CB_TYPE[$object_type] ||= []; 626 $registry = $CB_TYPE[$object_type] ||= [];
543 627
544 } elsif ($type eq "subtype") { 628 } elsif ($type eq "subtype") {
545 defined $object_type or Carp::croak "subtype specified without type"; 629 defined $object_type or Carp::croak "subtype specified without type";
546 my $object_subtype = shift @arg; 630 my $object_subtype = shift @arg;
547 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 631 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548 632
549 } elsif ($type eq "package") { 633 } elsif ($type eq "package") {
550 my $pkg = shift @arg; 634 my $pkg = shift @arg;
551 635
552 while (my ($name, $id) = each %cb_id) { 636 while (my ($name, $id) = each %cb_id) {
593 if (ref $_[0]) { 677 if (ref $_[0]) {
594 _object_attach @_; 678 _object_attach @_;
595 } else { 679 } else {
596 _attach shift->_attach_registry, @_; 680 _attach shift->_attach_registry, @_;
597 } 681 }
682 _recalc_want;
598}; 683};
599 684
600# all those should be optimised 685# all those should be optimised
601sub cf::attachable::detach { 686sub cf::attachable::detach {
602 my ($obj, $name) = @_; 687 my ($obj, $name) = @_;
605 delete $obj->{_attachment}{$name}; 690 delete $obj->{_attachment}{$name};
606 reattach ($obj); 691 reattach ($obj);
607 } else { 692 } else {
608 Carp::croak "cannot, currently, detach class attachments"; 693 Carp::croak "cannot, currently, detach class attachments";
609 } 694 }
695 _recalc_want;
610}; 696};
611 697
612sub cf::attachable::attached { 698sub cf::attachable::attached {
613 my ($obj, $name) = @_; 699 my ($obj, $name) = @_;
614 700
679# object support 765# object support
680 766
681sub reattach { 767sub reattach {
682 # basically do the same as instantiate, without calling instantiate 768 # basically do the same as instantiate, without calling instantiate
683 my ($obj) = @_; 769 my ($obj) = @_;
770
771 bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684 772
685 my $registry = $obj->registry; 773 my $registry = $obj->registry;
686 774
687 @$registry = (); 775 @$registry = ();
688 776
735 $filename, length $$rdata, scalar @$objs; 823 $filename, length $$rdata, scalar @$objs;
736 824
737 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 825 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738 chmod SAVE_MODE, $fh; 826 chmod SAVE_MODE, $fh;
739 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 827 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740 aio_fsync $fh; 828 aio_fsync $fh if $cf::USE_FSYNC;
741 close $fh; 829 close $fh;
742 830
743 if (@$objs) { 831 if (@$objs) {
744 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 832 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745 chmod SAVE_MODE, $fh; 833 chmod SAVE_MODE, $fh;
746 my $data = Storable::nfreeze { version => 1, objs => $objs }; 834 my $data = Storable::nfreeze { version => 1, objs => $objs };
747 aio_write $fh, 0, (length $data), $data, 0; 835 aio_write $fh, 0, (length $data), $data, 0;
748 aio_fsync $fh; 836 aio_fsync $fh if $cf::USE_FSYNC;
749 close $fh; 837 close $fh;
750 aio_rename "$filename.pst~", "$filename.pst"; 838 aio_rename "$filename.pst~", "$filename.pst";
751 } 839 }
752 } else { 840 } else {
753 aio_unlink "$filename.pst"; 841 aio_unlink "$filename.pst";
785 or return; 873 or return;
786 $av = eval { (Storable::thaw $av)->{objs} }; 874 $av = eval { (Storable::thaw $av)->{objs} };
787 } 875 }
788 876
789 warn sprintf "loading %s (%d)\n", 877 warn sprintf "loading %s (%d)\n",
790 $filename, length $data, scalar @{$av || []};#d# 878 $filename, length $data, scalar @{$av || []};
791 return ($data, $av); 879 return ($data, $av);
792} 880}
793 881
794############################################################################# 882#############################################################################
795# command handling &c 883# command handling &c
922Returns the given player object, loading it if necessary (might block). 1010Returns the given player object, loading it if necessary (might block).
923 1011
924=cut 1012=cut
925 1013
926sub playerdir($) { 1014sub playerdir($) {
927 cf::localdir 1015 "$PLAYERDIR/"
928 . "/"
929 . cf::playerdir
930 . "/"
931 . (ref $_[0] ? $_[0]->ob->name : $_[0]) 1016 . (ref $_[0] ? $_[0]->ob->name : $_[0])
932} 1017}
933 1018
934sub path($) { 1019sub path($) {
935 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 1020 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936 1021
937 (playerdir $login) . "/$login.pl" 1022 (playerdir $login) . "/playerdata"
938} 1023}
939 1024
940sub find_active($) { 1025sub find_active($) {
941 $cf::PLAYER{$_[0]} 1026 $cf::PLAYER{$_[0]}
942 and $cf::PLAYER{$_[0]}->active 1027 and $cf::PLAYER{$_[0]}->active
945 1030
946sub exists($) { 1031sub exists($) {
947 my ($login) = @_; 1032 my ($login) = @_;
948 1033
949 $cf::PLAYER{$login} 1034 $cf::PLAYER{$login}
950 or cf::sync_job { !aio_stat $login } 1035 or cf::sync_job { !aio_stat path $login }
951} 1036}
952 1037
953sub find($) { 1038sub find($) {
954 return $cf::PLAYER{$_[0]} || do { 1039 return $cf::PLAYER{$_[0]} || do {
955 my $login = $_[0]; 1040 my $login = $_[0];
956 1041
957 my $guard = cf::lock_acquire "user_find:$login"; 1042 my $guard = cf::lock_acquire "user_find:$login";
958 1043
959 $cf::PLAYER{$_[0]} || do { 1044 $cf::PLAYER{$_[0]} || do {
1045 # rename old playerfiles to new ones
1046 #TODO: remove when no longer required
1047 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1048 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1049 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1050 aio_unlink +(playerdir $login) . "/$login.pl";
1051
960 my $pl = load_pl path $login 1052 my $pl = load_pl path $login
961 or return; 1053 or return;
962 $cf::PLAYER{$login} = $pl 1054 $cf::PLAYER{$login} = $pl
963 } 1055 }
964 } 1056 }
1001 1093
1002=cut 1094=cut
1003 1095
1004sub quit_character { 1096sub quit_character {
1005 my ($pl) = @_; 1097 my ($pl) = @_;
1098
1099 my $name = $pl->ob->name;
1006 1100
1007 $pl->{deny_save} = 1; 1101 $pl->{deny_save} = 1;
1008 $pl->password ("*"); # this should lock out the player until we nuked the dir 1102 $pl->password ("*"); # this should lock out the player until we nuked the dir
1009 1103
1010 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1104 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1015 my $path = playerdir $pl; 1109 my $path = playerdir $pl;
1016 my $temp = "$path~$cf::RUNTIME~deleting~"; 1110 my $temp = "$path~$cf::RUNTIME~deleting~";
1017 aio_rename $path, $temp; 1111 aio_rename $path, $temp;
1018 delete $cf::PLAYER{$pl->ob->name}; 1112 delete $cf::PLAYER{$pl->ob->name};
1019 $pl->destroy; 1113 $pl->destroy;
1114
1115 my $prefix = qr<^~\Q$name\E/>;
1116
1117 # nuke player maps
1118 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1119
1020 IO::AIO::aio_rmtree $temp; 1120 IO::AIO::aio_rmtree $temp;
1121}
1122
1123=item $pl->kick
1124
1125Kicks a player out of the game. This destroys the connection.
1126
1127=cut
1128
1129sub kick {
1130 my ($pl, $kicker) = @_;
1131
1132 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1133 $pl->killer ("kicked");
1134 $pl->ns->destroy;
1021} 1135}
1022 1136
1023=item cf::player::list_logins 1137=item cf::player::list_logins
1024 1138
1025Returns am arrayref of all valid playernames in the system, can take a 1139Returns am arrayref of all valid playernames in the system, can take a
1026while and may block, so not sync_job-capable, ever. 1140while and may block, so not sync_job-capable, ever.
1027 1141
1028=cut 1142=cut
1029 1143
1030sub list_logins { 1144sub list_logins {
1031 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir 1145 my $dirs = aio_readdir $PLAYERDIR
1032 or return []; 1146 or return [];
1033 1147
1034 my @logins; 1148 my @logins;
1035 1149
1036 for my $login (@$dirs) { 1150 for my $login (@$dirs) {
1053=cut 1167=cut
1054 1168
1055sub maps($) { 1169sub maps($) {
1056 my ($pl) = @_; 1170 my ($pl) = @_;
1057 1171
1172 $pl = ref $pl ? $pl->ob->name : $pl;
1173
1058 my $files = aio_readdir playerdir $pl 1174 my $files = aio_readdir playerdir $pl
1059 or return; 1175 or return;
1060 1176
1061 my @paths; 1177 my @paths;
1062 1178
1063 for (@$files) { 1179 for (@$files) {
1064 utf8::decode $_; 1180 utf8::decode $_;
1065 next if /\.(?:pl|pst)$/; 1181 next if /\.(?:pl|pst)$/;
1066 next unless /^$PATH_SEP/o; 1182 next unless /^$PATH_SEP/o;
1067 1183
1068 s/\.map$//; 1184 push @paths, cf::map::normalise "~$pl/$_";
1069 push @paths, "~" . $pl->ob->name . "/" . $_;
1070 } 1185 }
1071 1186
1072 \@paths 1187 \@paths
1073} 1188}
1074 1189
1075=item $player->ext_reply ($msgid, $msgtype, %msg) 1190=item $player->ext_reply ($msgid, %msg)
1076 1191
1077Sends an ext reply to the player. 1192Sends an ext reply to the player.
1078 1193
1079=cut 1194=cut
1080 1195
1081sub ext_reply($$$%) { 1196sub ext_reply($$%) {
1082 my ($self, $id, %msg) = @_; 1197 my ($self, $id, %msg) = @_;
1083 1198
1084 $msg{msgid} = $id; 1199 $msg{msgid} = $id;
1085 1200
1086 $self->send ("ext " . cf::to_json \%msg); 1201 $self->send ("ext " . cf::to_json \%msg);
1087} 1202}
1088 1203
1089package cf; 1204=item $player->ext_event ($type, %msg)
1205
1206Sends an ext event to the client.
1207
1208=cut
1209
1210sub ext_event($$%) {
1211 my ($self, $type, %msg) = @_;
1212
1213 $self->ns->ext_event ($type, %msg);
1214}
1215
1216=head3 cf::region
1217
1218=over 4
1219
1220=cut
1221
1222package cf::region;
1223
1224=item cf::region::find_by_path $path
1225
1226Tries to decuce the probable region for a map knowing only its path.
1227
1228=cut
1229
1230sub find_by_path($) {
1231 my ($path) = @_;
1232
1233 my ($match, $specificity);
1234
1235 for my $region (list) {
1236 if ($region->match && $path =~ $region->match) {
1237 ($match, $specificity) = ($region, $region->specificity)
1238 if $region->specificity > $specificity;
1239 }
1240 }
1241
1242 $match
1243}
1090 1244
1091=back 1245=back
1092
1093 1246
1094=head3 cf::map 1247=head3 cf::map
1095 1248
1096=over 4 1249=over 4
1097 1250
1101 1254
1102use Fcntl; 1255use Fcntl;
1103use Coro::AIO; 1256use Coro::AIO;
1104 1257
1105use overload 1258use overload
1106 '""' => \&as_string; 1259 '""' => \&as_string,
1260 fallback => 1;
1107 1261
1108our $MAX_RESET = 3600; 1262our $MAX_RESET = 3600;
1109our $DEFAULT_RESET = 3000; 1263our $DEFAULT_RESET = 3000;
1110 1264
1111sub generate_random_map { 1265sub generate_random_map {
1112 my ($self, $rmp) = @_; 1266 my ($self, $rmp) = @_;
1113
1114 # mit "rum" bekleckern, nicht 1267 # mit "rum" bekleckern, nicht
1115 $self->_create_random_map ( 1268 $self->_create_random_map (
1116 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1269 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1270 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1118 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1271 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1125 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1278 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126 (cf::region::find $rmp->{region}), $rmp->{custom} 1279 (cf::region::find $rmp->{region}), $rmp->{custom}
1127 ) 1280 )
1128} 1281}
1129 1282
1283=item cf::map->register ($regex, $prio)
1284
1285Register a handler for the map path matching the given regex at the
1286givne priority (higher is better, built-in handlers have priority 0, the
1287default).
1288
1289=cut
1290
1130sub register { 1291sub register {
1131 my (undef, $regex) = @_; 1292 my (undef, $regex, $prio) = @_;
1132 my $pkg = caller; 1293 my $pkg = caller;
1133 1294
1134 no strict; 1295 no strict;
1135 push @{"$pkg\::ISA"}, __PACKAGE__; 1296 push @{"$pkg\::ISA"}, __PACKAGE__;
1136 1297
1137 $EXT_MAP{$pkg} = qr<$regex>; 1298 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138} 1299}
1139 1300
1140# also paths starting with '/' 1301# also paths starting with '/'
1141$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1302$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1303
1304sub thawer_merge {
1305 my ($self, $merge) = @_;
1306
1307 # we have to keep some variables in memory intact
1308 local $self->{path};
1309 local $self->{load_path};
1310
1311 $self->SUPER::thawer_merge ($merge);
1312}
1142 1313
1143sub normalise { 1314sub normalise {
1144 my ($path, $base) = @_; 1315 my ($path, $base) = @_;
1316
1317 $path = "$path"; # make sure its a string
1318
1319 $path =~ s/\.map$//;
1145 1320
1146 # map plan: 1321 # map plan:
1147 # 1322 #
1148 # /! non-realised random map exit (special hack!) 1323 # /! non-realised random map exit (special hack!)
1149 # {... are special paths that are not being touched 1324 # {... are special paths that are not being touched
1177 1352
1178 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1353 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179 1354
1180 $path = normalise $path, $base; 1355 $path = normalise $path, $base;
1181 1356
1182 for my $pkg (keys %EXT_MAP) { 1357 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183 if ($path =~ $EXT_MAP{$pkg}) { 1358 if ($path =~ $EXT_MAP{$pkg}[1]) {
1184 my $self = bless cf::map::new, $pkg; 1359 my $self = bless cf::map::new, $pkg;
1185 $self->{path} = $path; $self->path ($path); 1360 $self->{path} = $path; $self->path ($path);
1186 $self->init; # pass $1 etc. 1361 $self->init; # pass $1 etc.
1187 return $self; 1362 return $self;
1188 } 1363 }
1189 } 1364 }
1190 1365
1191 Carp::carp "unable to resolve path '$path'."; 1366 Carp::carp "unable to resolve path '$path' (base '$base').";
1192 () 1367 ()
1193} 1368}
1194 1369
1195sub init { 1370sub init {
1196 my ($self) = @_; 1371 my ($self) = @_;
1211 1386
1212# the original (read-only) location 1387# the original (read-only) location
1213sub load_path { 1388sub load_path {
1214 my ($self) = @_; 1389 my ($self) = @_;
1215 1390
1216 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1391 "$MAPDIR/$self->{path}.map"
1217} 1392}
1218 1393
1219# the temporary/swap location 1394# the temporary/swap location
1220sub save_path { 1395sub save_path {
1221 my ($self) = @_; 1396 my ($self) = @_;
1222 1397
1223 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1398 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1224 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1399 "$TMPDIR/$path.map"
1225} 1400}
1226 1401
1227# the unique path, undef == no special unique path 1402# the unique path, undef == no special unique path
1228sub uniq_path { 1403sub uniq_path {
1229 my ($self) = @_; 1404 my ($self) = @_;
1230 1405
1231 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1406 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1232 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path 1407 "$UNIQUEDIR/$path"
1233} 1408}
1234 1409
1235# and all this just because we cannot iterate over 1410# and all this just because we cannot iterate over
1236# all maps in C++... 1411# all maps in C++...
1237sub change_all_map_light { 1412sub change_all_map_light {
1239 1414
1240 $_->change_map_light ($change) 1415 $_->change_map_light ($change)
1241 for grep $_->outdoor, values %cf::MAP; 1416 for grep $_->outdoor, values %cf::MAP;
1242} 1417}
1243 1418
1419sub decay_objects {
1420 my ($self) = @_;
1421
1422 return if $self->{deny_reset};
1423
1424 $self->do_decay_objects;
1425}
1426
1244sub unlink_save { 1427sub unlink_save {
1245 my ($self) = @_; 1428 my ($self) = @_;
1246 1429
1247 utf8::encode (my $save = $self->save_path); 1430 utf8::encode (my $save = $self->save_path);
1248 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save; 1431 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249 IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst"; 1432 IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250} 1433}
1251 1434
1252sub load_header_from($) { 1435sub load_header_from($) {
1253 my ($self, $path) = @_; 1436 my ($self, $path) = @_;
1254 1437
1255 utf8::encode $path; 1438 utf8::encode $path;
1256 aio_open $path, O_RDONLY, 0 1439 #aio_open $path, O_RDONLY, 0
1257 or return; 1440 # or return;
1258 1441
1259 $self->_load_header ($path) 1442 $self->_load_header ($path)
1260 or return; 1443 or return;
1261 1444
1262 $self->{load_path} = $path; 1445 $self->{load_path} = $path;
1263 1446
1264 1 1447 1
1265} 1448}
1266 1449
1267sub load_orig { 1450sub load_header_orig {
1268 my ($self) = @_; 1451 my ($self) = @_;
1269 1452
1270 $self->load_header_from ($self->load_path) 1453 $self->load_header_from ($self->load_path)
1271} 1454}
1272 1455
1273sub load_temp { 1456sub load_header_temp {
1274 my ($self) = @_; 1457 my ($self) = @_;
1275 1458
1276 $self->load_header_from ($self->save_path) 1459 $self->load_header_from ($self->save_path)
1460}
1461
1462sub prepare_temp {
1463 my ($self) = @_;
1464
1465 $self->last_access ((delete $self->{last_access})
1466 || $cf::RUNTIME); #d#
1467 # safety
1468 $self->{instantiate_time} = $cf::RUNTIME
1469 if $self->{instantiate_time} > $cf::RUNTIME;
1470}
1471
1472sub prepare_orig {
1473 my ($self) = @_;
1474
1475 $self->{load_original} = 1;
1476 $self->{instantiate_time} = $cf::RUNTIME;
1477 $self->last_access ($cf::RUNTIME);
1478 $self->instantiate;
1277} 1479}
1278 1480
1279sub load_header { 1481sub load_header {
1280 my ($self) = @_; 1482 my ($self) = @_;
1281 1483
1282 if ($self->load_temp) { 1484 if ($self->load_header_temp) {
1283 $self->last_access ((delete $self->{last_access}) 1485 $self->prepare_temp;
1284 || $cf::RUNTIME); #d#
1285 # safety
1286 $self->{instantiate_time} = $cf::RUNTIME
1287 if $self->{instantiate_time} > $cf::RUNTIME;
1288 } else { 1486 } else {
1289 $self->load_orig 1487 $self->load_header_orig
1290 or return; 1488 or return;
1291 1489 $self->prepare_orig;
1292 $self->{load_original} = 1;
1293 $self->{instantiate_time} = $cf::RUNTIME;
1294 $self->last_access ($cf::RUNTIME);
1295 $self->instantiate;
1296 } 1490 }
1491
1492 $self->{deny_reset} = 1
1493 if $self->no_reset;
1494
1495 $self->default_region (cf::region::find_by_path $self->{path})
1496 unless $self->default_region;
1297 1497
1298 1 1498 1
1299} 1499}
1300 1500
1301sub find; 1501sub find;
1314 $map->{last_save} = $cf::RUNTIME; 1514 $map->{last_save} = $cf::RUNTIME;
1315 1515
1316 $map->load_header 1516 $map->load_header
1317 or return; 1517 or return;
1318 1518
1319 if ($map->should_reset) { 1519 if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1520 # doing this can freeze the server in a sync job, obviously
1521 #$cf::WAIT_FOR_TICK->wait;
1320 $map->reset; 1522 $map->reset;
1321 undef $guard; 1523 undef $guard;
1322 $map = find $path 1524 return find $path;
1323 or return;
1324 } 1525 }
1325 1526
1326 $cf::MAP{$path} = $map 1527 $cf::MAP{$path} = $map
1327 } 1528 }
1328} 1529}
1530
1531sub pre_load { }
1532sub post_load { }
1329 1533
1330sub load { 1534sub load {
1331 my ($self) = @_; 1535 my ($self) = @_;
1332 1536
1537 local $self->{deny_reset} = 1; # loading can take a long time
1538
1333 my $path = $self->{path}; 1539 my $path = $self->{path};
1540
1541 {
1334 my $guard = cf::lock_acquire "map_load:$path"; 1542 my $guard = cf::lock_acquire "map_load:$path";
1335 1543
1336 return if $self->in_memory != cf::MAP_SWAPPED; 1544 return if $self->in_memory != cf::MAP_SWAPPED;
1337 1545
1338 $self->in_memory (cf::MAP_LOADING); 1546 $self->in_memory (cf::MAP_LOADING);
1339 1547
1340 $self->alloc; 1548 $self->alloc;
1341 $self->_load_objects ($self->{load_path}, 1)
1342 or return;
1343 1549
1344 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1550 $self->pre_load;
1345 if delete $self->{load_original};
1346
1347 if (my $uniq = $self->uniq_path) {
1348 utf8::encode $uniq;
1349 if (aio_open $uniq, O_RDONLY, 0) {
1350 $self->clear_unique_items;
1351 $self->_load_objects ($uniq, 0);
1352 }
1353 }
1354
1355 Coro::cede;
1356
1357 # now do the right thing for maps
1358 $self->link_multipart_objects;
1359
1360 unless ($self->{deny_activate}) {
1361 $self->decay_objects;
1362 $self->fix_auto_apply;
1363 $self->update_buttons;
1364 Coro::cede; 1551 Coro::cede;
1365 $self->set_darkness_map; 1552
1553 $self->_load_objects ($self->{load_path}, 1)
1554 or return;
1555
1556 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1557 if delete $self->{load_original};
1558
1559 if (my $uniq = $self->uniq_path) {
1560 utf8::encode $uniq;
1561 if (aio_open $uniq, O_RDONLY, 0) {
1562 $self->clear_unique_items;
1563 $self->_load_objects ($uniq, 0);
1564 }
1565 }
1566
1567 Coro::cede;
1568 # now do the right thing for maps
1569 $self->link_multipart_objects;
1366 $self->difficulty ($self->estimate_difficulty) 1570 $self->difficulty ($self->estimate_difficulty)
1367 unless $self->difficulty; 1571 unless $self->difficulty;
1368 Coro::cede; 1572 Coro::cede;
1573
1574 unless ($self->{deny_activate}) {
1575 $self->decay_objects;
1576 $self->fix_auto_apply;
1577 $self->update_buttons;
1578 Coro::cede;
1579 $self->set_darkness_map;
1580 Coro::cede;
1369 $self->activate; 1581 $self->activate;
1370 } 1582 }
1371 1583
1372 $self->in_memory (cf::MAP_IN_MEMORY); 1584 $self->in_memory (cf::MAP_IN_MEMORY);
1585 }
1586
1587 $self->post_load;
1373} 1588}
1374 1589
1375sub customise_for { 1590sub customise_for {
1376 my ($self, $ob) = @_; 1591 my ($self, $ob) = @_;
1377 1592
1378 return find "~" . $ob->name . "/" . $self->{path} 1593 return find "~" . $ob->name . "/" . $self->{path}
1379 if $self->per_player; 1594 if $self->per_player;
1595
1596# return find "?party/" . $ob->name . "/" . $self->{path}
1597# if $self->per_party;
1380 1598
1381 $self 1599 $self
1382} 1600}
1383 1601
1384# find and load all maps in the 3x3 area around a map 1602# find and load all maps in the 3x3 area around a map
1416 1634
1417 cf::sync_job { $map->load }; 1635 cf::sync_job { $map->load };
1418} 1636}
1419 1637
1420our %MAP_PREFETCH; 1638our %MAP_PREFETCH;
1421our $MAP_PREFETCHER = Coro::async { 1639our $MAP_PREFETCHER = undef;
1422 while () {
1423 for my $path (keys %MAP_PREFETCH) {
1424 my $map = find $path
1425 or next;
1426 $map->load;
1427
1428 delete $MAP_PREFETCH{$path};
1429 }
1430 Coro::schedule;
1431 }
1432};
1433 1640
1434sub find_async { 1641sub find_async {
1435 my ($path, $origin) = @_; 1642 my ($path, $origin) = @_;
1436 1643
1437 $path = normalise $path, $origin && $origin->{path}; 1644 $path = normalise $path, $origin && $origin->{path};
1438 1645
1439 if (my $map = $cf::MAP{$path}) { 1646 if (my $map = $cf::MAP{$path}) {
1440 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1647 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1441 } 1648 }
1442 1649
1443 $MAP_PREFETCH{$path} = 0; 1650 undef $MAP_PREFETCH{$path};
1651 $MAP_PREFETCHER ||= cf::async {
1652 while (%MAP_PREFETCH) {
1653 for my $path (keys %MAP_PREFETCH) {
1654 my $map = find $path
1655 or next;
1656 $map->load;
1657
1658 delete $MAP_PREFETCH{$path};
1659 }
1660 }
1661 undef $MAP_PREFETCHER;
1662 };
1444 $MAP_PREFETCHER->ready; 1663 $MAP_PREFETCHER->prio (6);
1445 1664
1446 () 1665 ()
1447} 1666}
1448 1667
1449sub save { 1668sub save {
1494 1713
1495sub reset_at { 1714sub reset_at {
1496 my ($self) = @_; 1715 my ($self) = @_;
1497 1716
1498 # TODO: safety, remove and allow resettable per-player maps 1717 # TODO: safety, remove and allow resettable per-player maps
1499 return 1e99 if $self->isa ("ext::map_per_player");
1500 return 1e99 if $self->{deny_reset}; 1718 return 1e99 if $self->{deny_reset};
1501 1719
1502 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; 1720 my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; 1721 my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504 1722
1509 my ($self) = @_; 1727 my ($self) = @_;
1510 1728
1511 $self->reset_at <= $cf::RUNTIME 1729 $self->reset_at <= $cf::RUNTIME
1512} 1730}
1513 1731
1514sub rename {
1515 my ($self, $new_path) = @_;
1516
1517 normalise $new_path;
1518
1519 $self->unlink_save;
1520
1521 delete $cf::MAP{$self->path};
1522 $self->{path} = $new_path; $self->path ($self->{path});
1523 $cf::MAP{$self->path} = $self;
1524
1525 $self->save;
1526}
1527
1528sub reset { 1732sub reset {
1529 my ($self) = @_; 1733 my ($self) = @_;
1530 1734
1531 my $lock = cf::lock_acquire "map_data:$self->{path}"; 1735 my $lock = cf::lock_acquire "map_data:$self->{path}";
1532 1736
1533 return if $self->players; 1737 return if $self->players;
1534 return if $self->isa ("ext::map_per_player");#d#
1535 1738
1536 warn "resetting map ", $self->path;#d# 1739 warn "resetting map ", $self->path;
1740
1741 $self->in_memory (cf::MAP_SWAPPED);
1742
1743 # need to save uniques path
1744 unless ($self->{deny_save}) {
1745 my $uniq = $self->uniq_path; utf8::encode $uniq;
1746
1747 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1748 if $uniq;
1749 }
1537 1750
1538 delete $cf::MAP{$self->path}; 1751 delete $cf::MAP{$self->path};
1539 1752
1540 $self->in_memory (cf::MAP_SWAPPED);
1541 $self->clear; 1753 $self->clear;
1542 1754
1543 $_->clear_links_to ($self) for values %cf::MAP; 1755 $_->clear_links_to ($self) for values %cf::MAP;
1544 1756
1545 $self->unlink_save; 1757 $self->unlink_save;
1549my $nuke_counter = "aaaa"; 1761my $nuke_counter = "aaaa";
1550 1762
1551sub nuke { 1763sub nuke {
1552 my ($self) = @_; 1764 my ($self) = @_;
1553 1765
1766 delete $cf::MAP{$self->path};
1767
1768 $self->unlink_save;
1769
1770 bless $self, "cf::map";
1771 delete $self->{deny_reset};
1554 $self->{deny_save} = 1; 1772 $self->{deny_save} = 1;
1555 $self->reset_timeout (1); 1773 $self->reset_timeout (1);
1556 $self->rename ("{nuke}/" . ($nuke_counter++)); 1774 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1775
1776 $cf::MAP{$self->path} = $self;
1777
1557 $self->reset; # polite request, might not happen 1778 $self->reset; # polite request, might not happen
1779}
1780
1781=item $maps = cf::map::tmp_maps
1782
1783Returns an arrayref with all map paths of currently instantiated and saved
1784maps. May block.
1785
1786=cut
1787
1788sub tmp_maps() {
1789 [
1790 map {
1791 utf8::decode $_;
1792 /\.map$/
1793 ? normalise $_
1794 : ()
1795 } @{ aio_readdir $TMPDIR or [] }
1796 ]
1797}
1798
1799=item $maps = cf::map::random_maps
1800
1801Returns an arrayref with all map paths of currently instantiated and saved
1802random maps. May block.
1803
1804=cut
1805
1806sub random_maps() {
1807 [
1808 map {
1809 utf8::decode $_;
1810 /\.map$/
1811 ? normalise "?random/$_"
1812 : ()
1813 } @{ aio_readdir $RANDOMDIR or [] }
1814 ]
1558} 1815}
1559 1816
1560=item cf::map::unique_maps 1817=item cf::map::unique_maps
1561 1818
1562Returns an arrayref of paths of all shared maps that have 1819Returns an arrayref of paths of all shared maps that have
1563instantiated unique items. May block. 1820instantiated unique items. May block.
1564 1821
1565=cut 1822=cut
1566 1823
1567sub unique_maps() { 1824sub unique_maps() {
1568 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir 1825 [
1569 or return; 1826 map {
1570
1571 my @paths;
1572
1573 for (@$files) {
1574 utf8::decode $_; 1827 utf8::decode $_;
1575 next if /\.pst$/;
1576 next unless /^$PATH_SEP/o;
1577
1578 s/\.map$//; 1828 /\.map$/
1579 push @paths, $_; 1829 ? normalise $_
1830 : ()
1831 } @{ aio_readdir $UNIQUEDIR or [] }
1580 } 1832 ]
1581
1582 \@paths
1583} 1833}
1584 1834
1585package cf; 1835package cf;
1586 1836
1587=back 1837=back
1678=cut 1928=cut
1679 1929
1680sub link_map { 1930sub link_map {
1681 unless ($LINK_MAP) { 1931 unless ($LINK_MAP) {
1682 $LINK_MAP = cf::map::find "{link}" 1932 $LINK_MAP = cf::map::find "{link}"
1683 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1933 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684 $LINK_MAP->load; 1934 $LINK_MAP->load;
1685 } 1935 }
1686 1936
1687 $LINK_MAP 1937 $LINK_MAP
1688} 1938}
1693 $self->deactivate_recursive; 1943 $self->deactivate_recursive;
1694 1944
1695 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1945 return if UNIVERSAL::isa $self->map, "ext::map_link";
1696 1946
1697 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1947 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698 if $self->map; 1948 if $self->map && $self->map->{path} ne "{link}";
1699 1949
1700 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1950 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1701} 1951}
1702 1952
1703sub cf::object::player::leave_link { 1953sub cf::object::player::leave_link {
1704 my ($self, $map, $x, $y) = @_; 1954 my ($self, $map, $x, $y) = @_;
1955
1956 return unless $self->contr->active;
1705 1957
1706 my $link_pos = delete $self->{_link_pos}; 1958 my $link_pos = delete $self->{_link_pos};
1707 1959
1708 unless ($map) { 1960 unless ($map) {
1709 # restore original map position 1961 # restore original map position
1727 $map->load; 1979 $map->load;
1728 $map->load_diag; 1980 $map->load_diag;
1729 1981
1730 return unless $self->contr->active; 1982 return unless $self->contr->active;
1731 $self->activate_recursive; 1983 $self->activate_recursive;
1984
1985 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1732 $self->enter_map ($map, $x, $y); 1986 $self->enter_map ($map, $x, $y);
1733} 1987}
1734 1988
1735cf::player->attach (
1736 on_logout => sub {
1737 my ($pl) = @_;
1738
1739 # abort map switching before logout
1740 if ($pl->ob->{_link_pos}) {
1741 cf::sync_job {
1742 $pl->ob->leave_link
1743 };
1744 }
1745 },
1746 on_login => sub {
1747 my ($pl) = @_;
1748
1749 # try to abort aborted map switching on player login :)
1750 # should happen only on crashes
1751 if ($pl->ob->{_link_pos}) {
1752 $pl->ob->enter_link;
1753 (async {
1754 # we need this sleep as the login has a concurrent enter_exit running
1755 # and this sleep increases chances of the player not ending up in scorn
1756 $pl->ob->reply (undef,
1757 "There was an internal problem at your last logout, "
1758 . "the server will try to bring you to your intended destination in a second.",
1759 cf::NDI_RED);
1760 Coro::Timer::sleep 1;
1761 $pl->ob->leave_link;
1762 })->prio (2);
1763 }
1764 },
1765);
1766
1767=item $player_object->goto ($path, $x, $y) 1989=item $player_object->goto ($path, $x, $y[, $check->($map)])
1768 1990
1991Moves the player to the given map-path and coordinates by first freezing
1992her, loading and preparing them map, calling the provided $check callback
1993that has to return the map if sucecssful, and then unfreezes the player on
1994the new (success) or old (failed) map position.
1995
1769=cut 1996=cut
1997
1998our $GOTOGEN;
1770 1999
1771sub cf::object::player::goto { 2000sub cf::object::player::goto {
1772 my ($self, $path, $x, $y) = @_; 2001 my ($self, $path, $x, $y, $check) = @_;
2002
2003 # do generation counting so two concurrent goto's will be executed in-order
2004 my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773 2005
1774 $self->enter_link; 2006 $self->enter_link;
1775 2007
1776 (async { 2008 (async {
2009 my $map = eval {
1777 my $map = cf::map::find $path; 2010 my $map = cf::map::find $path;
2011
2012 if ($map) {
1778 $map = $map->customise_for ($self) if $map; 2013 $map = $map->customise_for ($self);
1779 2014 $map = $check->($map) if $check && $map;
1780# warn "entering ", $map->path, " at ($x, $y)\n" 2015 } else {
1781# if $map;
1782
1783 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 2016 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
2017 }
1784 2018
2019 $map
2020 };
2021
2022 if ($@) {
2023 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2024 LOG llevError | logBacktrace, Carp::longmess $@;
2025 }
2026
2027 if ($gen == $self->{_goto_generation}) {
2028 delete $self->{_goto_generation};
1785 $self->leave_link ($map, $x, $y); 2029 $self->leave_link ($map, $x, $y);
2030 }
1786 })->prio (1); 2031 })->prio (1);
1787} 2032}
1788 2033
1789=item $player_object->enter_exit ($exit_object) 2034=item $player_object->enter_exit ($exit_object)
1790 2035
1792 2037
1793sub parse_random_map_params { 2038sub parse_random_map_params {
1794 my ($spec) = @_; 2039 my ($spec) = @_;
1795 2040
1796 my $rmp = { # defaults 2041 my $rmp = { # defaults
1797 xsize => 10, 2042 xsize => (cf::rndm 15, 40),
1798 ysize => 10, 2043 ysize => (cf::rndm 15, 40),
2044 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2045 #layout => string,
1799 }; 2046 };
1800 2047
1801 for (split /\n/, $spec) { 2048 for (split /\n/, $spec) {
1802 my ($k, $v) = split /\s+/, $_, 2; 2049 my ($k, $v) = split /\s+/, $_, 2;
1803 2050
1807 $rmp 2054 $rmp
1808} 2055}
1809 2056
1810sub prepare_random_map { 2057sub prepare_random_map {
1811 my ($exit) = @_; 2058 my ($exit) = @_;
2059
2060 my $guard = cf::lock_acquire "exit_prepare:$exit";
1812 2061
1813 # all this does is basically replace the /! path by 2062 # all this does is basically replace the /! path by
1814 # a new random map path (?random/...) with a seed 2063 # a new random map path (?random/...) with a seed
1815 # that depends on the exit object 2064 # that depends on the exit object
1816 2065
1817 my $rmp = parse_random_map_params $exit->msg; 2066 my $rmp = parse_random_map_params $exit->msg;
1818 2067
1819 if ($exit->map) { 2068 if ($exit->map) {
1820 $rmp->{region} = $exit->map->region_name; 2069 $rmp->{region} = $exit->region->name;
1821 $rmp->{origin_map} = $exit->map->path; 2070 $rmp->{origin_map} = $exit->map->path;
1822 $rmp->{origin_x} = $exit->x; 2071 $rmp->{origin_x} = $exit->x;
1823 $rmp->{origin_y} = $exit->y; 2072 $rmp->{origin_y} = $exit->y;
1824 } 2073 }
1825 2074
1826 $rmp->{random_seed} ||= $exit->random_seed; 2075 $rmp->{random_seed} ||= $exit->random_seed;
1827 2076
1828 my $data = cf::to_json $rmp; 2077 my $data = cf::to_json $rmp;
1829 my $md5 = Digest::MD5::md5_hex $data; 2078 my $md5 = Digest::MD5::md5_hex $data;
2079 my $meta = "$RANDOMDIR/$md5.meta";
1830 2080
1831 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 2081 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832 aio_write $fh, 0, (length $data), $data, 0; 2082 aio_write $fh, 0, (length $data), $data, 0;
2083 undef $fh;
2084 aio_rename "$meta~", $meta;
1833 2085
1834 $exit->slaying ("?random/$md5"); 2086 $exit->slaying ("?random/$md5");
1835 $exit->msg (undef); 2087 $exit->msg (undef);
1836 } 2088 }
1837} 2089}
1838 2090
1839sub cf::object::player::enter_exit { 2091sub cf::object::player::enter_exit {
1840 my ($self, $exit) = @_; 2092 my ($self, $exit) = @_;
1841 2093
1842 return unless $self->type == cf::PLAYER; 2094 return unless $self->type == cf::PLAYER;
2095
2096 if ($exit->slaying eq "/!") {
2097 #TODO: this should de-fi-ni-te-ly not be a sync-job
2098 # the problem is that $exit might not survive long enough
2099 # so it needs to be done right now, right here
2100 cf::sync_job { prepare_random_map $exit };
2101 }
2102
2103 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2104 my $hp = $exit->stats->hp;
2105 my $sp = $exit->stats->sp;
1843 2106
1844 $self->enter_link; 2107 $self->enter_link;
1845 2108
1846 (async { 2109 (async {
1847 $self->deactivate_recursive; # just to be sure 2110 $self->deactivate_recursive; # just to be sure
1848 unless (eval { 2111 unless (eval {
1849 prepare_random_map $exit 2112 $self->goto ($slaying, $hp, $sp);
1850 if $exit->slaying eq "/!";
1851
1852 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1853 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1854 2113
1855 1; 2114 1;
1856 }) { 2115 }) {
1857 $self->message ("Something went wrong deep within the crossfire server. " 2116 $self->message ("Something went wrong deep within the crossfire server. "
1858 . "I'll try to bring you back to the map you were before. " 2117 . "I'll try to bring you back to the map you were before. "
1859 . "Please report this to the dungeon master!", 2118 . "Please report this to the dungeon master!",
1860 cf::NDI_UNIQUE | cf::NDI_RED); 2119 cf::NDI_UNIQUE | cf::NDI_RED);
1861 2120
1862 warn "ERROR in enter_exit: $@"; 2121 warn "ERROR in enter_exit: $@";
1863 $self->leave_link; 2122 $self->leave_link;
1864 } 2123 }
1865 })->prio (1); 2124 })->prio (1);
1878 2137
1879sub cf::client::send_drawinfo { 2138sub cf::client::send_drawinfo {
1880 my ($self, $text, $flags) = @_; 2139 my ($self, $text, $flags) = @_;
1881 2140
1882 utf8::encode $text; 2141 utf8::encode $text;
1883 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2142 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884} 2143}
1885 2144
2145=item $client->ext_event ($type, %msg)
2146
2147Sends an exti event to the client.
2148
2149=cut
2150
2151sub cf::client::ext_event($$%) {
2152 my ($self, $type, %msg) = @_;
2153
2154 $msg{msgtype} = "event_$type";
2155 $self->send_packet ("ext " . cf::to_json \%msg);
2156}
1886 2157
1887=item $success = $client->query ($flags, "text", \&cb) 2158=item $success = $client->query ($flags, "text", \&cb)
1888 2159
1889Queues a query to the client, calling the given callback with 2160Queues a query to the client, calling the given callback with
1890the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2161the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1919 # get handled first 2190 # get handled first
1920 my $queue = delete $ns->{query_queue} 2191 my $queue = delete $ns->{query_queue}
1921 or return; # be conservative, not sure how that can happen, but we saw a crash here 2192 or return; # be conservative, not sure how that can happen, but we saw a crash here
1922 2193
1923 (shift @$queue)->[1]->($msg); 2194 (shift @$queue)->[1]->($msg);
2195 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924 2196
1925 push @{ $ns->{query_queue} }, @$queue; 2197 push @{ $ns->{query_queue} }, @$queue;
1926 2198
1927 if (@{ $ns->{query_queue} } == @$queue) { 2199 if (@{ $ns->{query_queue} } == @$queue) {
1928 if (@$queue) { 2200 if (@$queue) {
1986 2258
1987# here we export the classes and methods available to script code 2259# here we export the classes and methods available to script code
1988 2260
1989=pod 2261=pod
1990 2262
1991The following fucntions and emthods are available within a safe environment: 2263The following functions and methods are available within a safe environment:
1992 2264
1993 cf::object contr pay_amount pay_player map 2265 cf::object contr pay_amount pay_player map
1994 cf::object::player player 2266 cf::object::player player
1995 cf::player peaceful 2267 cf::player peaceful
1996 cf::map trigger 2268 cf::map trigger
2081############################################################################# 2353#############################################################################
2082 2354
2083=head2 EXTENSION DATABASE SUPPORT 2355=head2 EXTENSION DATABASE SUPPORT
2084 2356
2085Crossfire maintains a very simple database for extension use. It can 2357Crossfire maintains a very simple database for extension use. It can
2086currently store anything that can be serialised using Storable, which 2358currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2087excludes objects. 2359convert to/from binary).
2088 2360
2089The parameter C<$family> should best start with the name of the extension 2361The parameter C<$family> should best start with the name of the extension
2090using it, it should be unique. 2362using it, it should be unique.
2091 2363
2092=over 4 2364=over 4
2093 2365
2094=item $hashref = cf::db_get $family
2095
2096Return a hashref for use by the extension C<$family>, which can be
2097modified. After modifications, you have to call C<cf::db_dirty> or
2098C<cf::db_sync>.
2099
2100=item $value = cf::db_get $family => $key 2366=item $value = cf::db_get $family => $key
2101 2367
2102Returns a single value from the database 2368Returns a single value from the database.
2103
2104=item cf::db_put $family => $hashref
2105
2106Stores the given family hashref into the database. Updates are delayed, if
2107you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108 2369
2109=item cf::db_put $family => $key => $value 2370=item cf::db_put $family => $key => $value
2110 2371
2111Stores the given C<$value> in the family hash. Updates are delayed, if you 2372Stores the given C<$value> in the family.
2112want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114=item cf::db_dirty
2115
2116Marks the database as dirty, to be updated at a later time.
2117
2118=item cf::db_sync
2119
2120Immediately write the database to disk I<if it is dirty>.
2121 2373
2122=cut 2374=cut
2123 2375
2124our $DB; 2376our $DB;
2125 2377
2126{ 2378sub db_init {
2127 my $path = cf::localdir . "/database.pst"; 2379 unless ($DB) {
2380 $DB = BDB::db_create $DB_ENV;
2128 2381
2129 sub db_load() { 2382 cf::sync_job {
2130 $DB = stat $path ? Storable::retrieve $path : { }; 2383 eval {
2131 } 2384 $DB->set_flags (BDB::CHKSUM);
2132 2385
2133 my $pid; 2386 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2134 2387 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2135 sub db_save() { 2388 cf::cleanup "db_open(db): $!" if $!;
2136 waitpid $pid, 0 if $pid; 2389 };
2137 if (0 == ($pid = fork)) { 2390 cf::cleanup "db_open(db): $@" if $@;
2138 $DB->{_meta}{version} = 1;
2139 Storable::nstore $DB, "$path~";
2140 rename "$path~", $path;
2141 cf::_exit 0 if defined $pid;
2142 } 2391 };
2143 }
2144
2145 my $dirty;
2146
2147 sub db_sync() {
2148 db_save if $dirty;
2149 undef $dirty;
2150 }
2151
2152 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153 db_sync;
2154 }); 2392 }
2393}
2155 2394
2156 sub db_dirty() {
2157 $dirty = 1;
2158 $idle->start;
2159 }
2160
2161 sub db_get($;$) { 2395sub db_get($$) {
2162 @_ >= 2 2396 my $key = "$_[0]/$_[1]";
2163 ? $DB->{$_[0]}{$_[1]}
2164 : ($DB->{$_[0]} ||= { })
2165 }
2166 2397
2398 cf::sync_job {
2399 BDB::db_get $DB, undef, $key, my $data;
2400
2401 $! ? ()
2402 : $data
2403 }
2404}
2405
2167 sub db_put($$;$) { 2406sub db_put($$$) {
2168 if (@_ >= 3) { 2407 BDB::dbreq_pri 4;
2169 $DB->{$_[0]}{$_[1]} = $_[2]; 2408 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2170 } else { 2409}
2171 $DB->{$_[0]} = $_[1];
2172 }
2173 db_dirty;
2174 }
2175 2410
2176 cf::global->attach ( 2411=item cf::cache $id => [$paths...], $processversion => $process
2177 prio => 10000, 2412
2178 on_cleanup => sub { 2413Generic caching function that returns the value of the resource $id,
2179 db_sync; 2414caching and regenerating as required.
2415
2416This function can block.
2417
2418=cut
2419
2420sub cache {
2421 my ($id, $src, $processversion, $process) = @_;
2422
2423 my $meta =
2424 join "\x00",
2425 $processversion,
2426 map {
2427 aio_stat $_
2428 and Carp::croak "$_: $!";
2429
2430 ($_, (stat _)[7,9])
2431 } @$src;
2432
2433 my $dbmeta = db_get cache => "$id/meta";
2434 if ($dbmeta ne $meta) {
2435 # changed, we may need to process
2436
2437 my @data;
2438 my $md5;
2439
2440 for (0 .. $#$src) {
2441 0 <= aio_load $src->[$_], $data[$_]
2442 or Carp::croak "$src->[$_]: $!";
2180 }, 2443 }
2181 ); 2444
2445 # if processing is expensive, check
2446 # checksum first
2447 if (1) {
2448 $md5 =
2449 join "\x00",
2450 $processversion,
2451 map {
2452 Coro::cede;
2453 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2454 } 0.. $#$src;
2455
2456
2457 my $dbmd5 = db_get cache => "$id/md5";
2458 if ($dbmd5 eq $md5) {
2459 db_put cache => "$id/meta", $meta;
2460
2461 return db_get cache => "$id/data";
2462 }
2463 }
2464
2465 my $t1 = Time::HiRes::time;
2466 my $data = $process->(\@data);
2467 my $t2 = Time::HiRes::time;
2468
2469 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2470
2471 db_put cache => "$id/data", $data;
2472 db_put cache => "$id/md5" , $md5;
2473 db_put cache => "$id/meta", $meta;
2474
2475 return $data;
2476 }
2477
2478 db_get cache => "$id/data"
2479}
2480
2481=item fork_call { }, $args
2482
2483Executes the given code block with the given arguments in a seperate
2484process, returning the results. Everything must be serialisable with
2485Coro::Storable. May, of course, block. Note that the executed sub may
2486never block itself or use any form of Event handling.
2487
2488=cut
2489
2490sub fork_call(&@) {
2491 my ($cb, @args) = @_;
2492
2493# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2494# or die "socketpair: $!";
2495 pipe my $fh1, my $fh2
2496 or die "pipe: $!";
2497
2498 if (my $pid = fork) {
2499 close $fh2;
2500
2501 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2502 $res = Coro::Storable::thaw $res;
2503
2504 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2505
2506 die $$res unless "ARRAY" eq ref $res;
2507
2508 return wantarray ? @$res : $res->[-1];
2509 } else {
2510 reset_signals;
2511 local $SIG{__WARN__};
2512 local $SIG{__DIE__};
2513 eval {
2514 close $fh1;
2515
2516 my @res = eval { $cb->(@args) };
2517 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2518 };
2519
2520 warn $@ if $@;
2521 _exit 0;
2522 }
2182} 2523}
2183 2524
2184############################################################################# 2525#############################################################################
2185# the server's main() 2526# the server's init and main functions
2527
2528sub load_facedata($) {
2529 my ($path) = @_;
2530
2531 warn "loading facedata from $path\n";
2532
2533 my $facedata;
2534 0 < aio_load $path, $facedata
2535 or die "$path: $!";
2536
2537 $facedata = Coro::Storable::thaw $facedata;
2538
2539 $facedata->{version} == 2
2540 or cf::cleanup "$path: version mismatch, cannot proceed.";
2541
2542 {
2543 my $faces = $facedata->{faceinfo};
2544
2545 while (my ($face, $info) = each %$faces) {
2546 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2547 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2548 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2549 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2550 Coro::cede;
2551 }
2552
2553 while (my ($face, $info) = each %$faces) {
2554 next unless $info->{smooth};
2555 my $idx = cf::face::find $face
2556 or next;
2557 if (my $smooth = cf::face::find $info->{smooth}) {
2558 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2559 } else {
2560 warn "smooth face '$info->{smooth}' not found for face '$face'";
2561 }
2562 Coro::cede;
2563 }
2564 }
2565
2566 {
2567 my $anims = $facedata->{animinfo};
2568
2569 while (my ($anim, $info) = each %$anims) {
2570 cf::anim::set $anim, $info->{frames}, $info->{facings};
2571 Coro::cede;
2572 }
2573
2574 cf::anim::invalidate_all; # d'oh
2575 }
2576
2577 1
2578}
2579
2580sub reload_regions {
2581 load_resource_file "$MAPDIR/regions"
2582 or die "unable to load regions file\n";
2583}
2584
2585sub reload_facedata {
2586 load_facedata "$DATADIR/facedata"
2587 or die "unable to load facedata\n";
2588}
2589
2590sub reload_archetypes {
2591 load_resource_file "$DATADIR/archetypes"
2592 or die "unable to load archetypes\n";
2593}
2594
2595sub reload_treasures {
2596 load_resource_file "$DATADIR/treasures"
2597 or die "unable to load treasurelists\n";
2598}
2599
2600sub reload_resources {
2601 warn "reloading resource files...\n";
2602
2603 reload_regions;
2604 reload_facedata;
2605 #reload_archetypes;#d#
2606 reload_archetypes;
2607 reload_treasures;
2608
2609 warn "finished reloading resource files\n";
2610}
2611
2612sub init {
2613 reload_resources;
2614}
2186 2615
2187sub cfg_load { 2616sub cfg_load {
2188 open my $fh, "<:utf8", cf::confdir . "/config" 2617 open my $fh, "<:utf8", "$CONFDIR/config"
2189 or return; 2618 or return;
2190 2619
2191 local $/; 2620 local $/;
2192 *CFG = YAML::Syck::Load <$fh>; 2621 *CFG = YAML::Syck::Load <$fh>;
2193 2622
2207 2636
2208sub main { 2637sub main {
2209 # we must not ever block the main coroutine 2638 # we must not ever block the main coroutine
2210 local $Coro::idle = sub { 2639 local $Coro::idle = sub {
2211 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2640 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2641 (async {
2212 async { Event::one_event }; 2642 Event::one_event;
2643 })->prio (Coro::PRIO_MAX);
2213 }; 2644 };
2214 2645
2215 cfg_load; 2646 cfg_load;
2216 db_load; 2647 db_init;
2217 load_extensions; 2648 load_extensions;
2649
2650 $TICK_WATCHER->start;
2218 Event::loop; 2651 Event::loop;
2219} 2652}
2220 2653
2221############################################################################# 2654#############################################################################
2222# initialisation and cleanup 2655# initialisation and cleanup
2223 2656
2224# install some emergency cleanup handlers 2657# install some emergency cleanup handlers
2225BEGIN { 2658BEGIN {
2226 for my $signal (qw(INT HUP TERM)) { 2659 for my $signal (qw(INT HUP TERM)) {
2227 Event->signal ( 2660 Event->signal (
2661 reentrant => 0,
2228 data => WF_AUTOCANCEL, 2662 data => WF_AUTOCANCEL,
2229 signal => $signal, 2663 signal => $signal,
2664 prio => 0,
2230 cb => sub { 2665 cb => sub {
2231 cf::cleanup "SIG$signal"; 2666 cf::cleanup "SIG$signal";
2232 }, 2667 },
2233 ); 2668 );
2234 } 2669 }
2235} 2670}
2256 my $map = $cf::MAP{$path} or next; 2691 my $map = $cf::MAP{$path} or next;
2257 $map->valid or next; 2692 $map->valid or next;
2258 $map->save; 2693 $map->save;
2259 } 2694 }
2260 warn "end emergency map save\n"; 2695 warn "end emergency map save\n";
2696
2697 warn "begin emergency database checkpoint\n";
2698 BDB::db_env_txn_checkpoint $DB_ENV;
2699 warn "end emergency database checkpoint\n";
2261 }; 2700 };
2262 2701
2263 warn "leave emergency perl save\n"; 2702 warn "leave emergency perl save\n";
2264} 2703}
2265 2704
2705sub post_cleanup {
2706 my ($make_core) = @_;
2707
2708 warn Carp::longmess "post_cleanup backtrace"
2709 if $make_core;
2710}
2711
2266sub reload() { 2712sub do_reload_perl() {
2267 # can/must only be called in main 2713 # can/must only be called in main
2268 if ($Coro::current != $Coro::main) { 2714 if ($Coro::current != $Coro::main) {
2269 warn "can only reload from main coroutine\n"; 2715 warn "can only reload from main coroutine";
2270 return; 2716 return;
2271 } 2717 }
2272 2718
2273 warn "reloading..."; 2719 warn "reloading...";
2274 2720
2275 warn "freezing server"; 2721 warn "entering sync_job";
2276 my $guard = freeze_mainloop; 2722
2723 cf::sync_job {
2724 cf::write_runtime; # external watchdog should not bark
2277 cf::emergency_save; 2725 cf::emergency_save;
2726 cf::write_runtime; # external watchdog should not bark
2278 2727
2279 warn "sync database to disk"; 2728 warn "syncing database to disk";
2280 cf::db_sync; 2729 BDB::db_env_txn_checkpoint $DB_ENV;
2281 IO::AIO::flush;
2282 2730
2283 eval {
2284 # if anything goes wrong in here, we should simply crash as we already saved 2731 # if anything goes wrong in here, we should simply crash as we already saved
2285 2732
2286 warn "cancel all watchers"; 2733 warn "cancelling all WF_AUTOCANCEL watchers";
2287 for (Event::all_watchers) { 2734 for (Event::all_watchers) {
2288 $_->cancel if $_->data & WF_AUTOCANCEL; 2735 $_->cancel if $_->data & WF_AUTOCANCEL;
2289 } 2736 }
2290 2737
2738 warn "flushing outstanding aio requests";
2739 for (;;) {
2740 BDB::flush;
2741 IO::AIO::flush;
2742 Coro::cede;
2743 last unless IO::AIO::nreqs || BDB::nreqs;
2744 warn "iterate...";
2745 }
2746
2747 ++$RELOAD;
2748
2291 warn "cancel all extension coros"; 2749 warn "cancelling all extension coros";
2292 $_->cancel for values %EXT_CORO; 2750 $_->cancel for values %EXT_CORO;
2293 %EXT_CORO = (); 2751 %EXT_CORO = ();
2294 2752
2295 warn "remove commands"; 2753 warn "removing commands";
2296 %COMMAND = (); 2754 %COMMAND = ();
2297 2755
2298 warn "remove ext commands"; 2756 warn "removing ext commands";
2299 %EXTCMD = (); 2757 %EXTCMD = ();
2300 2758
2301 warn "unload/nuke all extensions"; 2759 warn "unloading/nuking all extensions";
2302 for my $pkg (@EXTS) { 2760 for my $pkg (@EXTS) {
2303 warn "... unloading $pkg"; 2761 warn "... unloading $pkg";
2304 2762
2305 if (my $cb = $pkg->can ("unload")) { 2763 if (my $cb = $pkg->can ("unload")) {
2306 eval { 2764 eval {
2311 2769
2312 warn "... nuking $pkg"; 2770 warn "... nuking $pkg";
2313 Symbol::delete_package $pkg; 2771 Symbol::delete_package $pkg;
2314 } 2772 }
2315 2773
2316 warn "unload all perl modules loaded from $LIBDIR"; 2774 warn "unloading all perl modules loaded from $LIBDIR";
2317 while (my ($k, $v) = each %INC) { 2775 while (my ($k, $v) = each %INC) {
2318 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2776 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319 2777
2320 warn "removing <$k>"; 2778 warn "... unloading $k";
2321 delete $INC{$k}; 2779 delete $INC{$k};
2322 2780
2323 $k =~ s/\.pm$//; 2781 $k =~ s/\.pm$//;
2324 $k =~ s/\//::/g; 2782 $k =~ s/\//::/g;
2325 2783
2328 } 2786 }
2329 2787
2330 Symbol::delete_package $k; 2788 Symbol::delete_package $k;
2331 } 2789 }
2332 2790
2333 warn "get rid of safe::, as good as possible"; 2791 warn "getting rid of safe::, as good as possible";
2334 Symbol::delete_package "safe::$_" 2792 Symbol::delete_package "safe::$_"
2335 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2793 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336 2794
2337 warn "unload cf.pm \"a bit\""; 2795 warn "unloading cf.pm \"a bit\"";
2338 delete $INC{"cf.pm"}; 2796 delete $INC{"cf.pm"};
2797 delete $INC{"cf/pod.pm"};
2339 2798
2340 # don't, removes xs symbols, too, 2799 # don't, removes xs symbols, too,
2341 # and global variables created in xs 2800 # and global variables created in xs
2342 #Symbol::delete_package __PACKAGE__; 2801 #Symbol::delete_package __PACKAGE__;
2343 2802
2803 warn "unload completed, starting to reload now";
2804
2344 warn "reloading cf.pm"; 2805 warn "reloading cf.pm";
2345 require cf; 2806 require cf;
2346 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2807 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347 2808
2348 warn "load config and database again"; 2809 warn "loading config and database again";
2349 cf::cfg_load; 2810 cf::cfg_load;
2350 cf::db_load;
2351 2811
2352 warn "load extensions"; 2812 warn "loading extensions";
2353 cf::load_extensions; 2813 cf::load_extensions;
2354 2814
2355 warn "reattach attachments to objects/players"; 2815 warn "reattaching attachments to objects/players";
2356 _global_reattach; 2816 _global_reattach; # objects, sockets
2357 warn "reattach attachments to maps"; 2817 warn "reattaching attachments to maps";
2358 reattach $_ for values %MAP; 2818 reattach $_ for values %MAP;
2359 }; 2819 warn "reattaching attachments to players";
2820 reattach $_ for values %PLAYER;
2360 2821
2361 if ($@) { 2822 warn "leaving sync_job";
2823
2824 1
2825 } or do {
2362 warn $@; 2826 warn $@;
2363 warn "error while reloading, exiting."; 2827 warn "error while reloading, exiting.";
2364 exit 1; 2828 exit 1;
2365 } 2829 };
2366 2830
2367 warn "reloaded"; 2831 warn "reloaded";
2368}; 2832};
2369 2833
2834our $RELOAD_WATCHER; # used only during reload
2835
2836sub reload_perl() {
2837 # doing reload synchronously and two reloads happen back-to-back,
2838 # coro crashes during coro_state_free->destroy here.
2839
2840 $RELOAD_WATCHER ||= Event->timer (
2841 reentrant => 0,
2842 after => 0,
2843 data => WF_AUTOCANCEL,
2844 cb => sub {
2845 do_reload_perl;
2846 undef $RELOAD_WATCHER;
2847 },
2848 );
2849}
2850
2370register_command "reload" => sub { 2851register_command "reload" => sub {
2371 my ($who, $arg) = @_; 2852 my ($who, $arg) = @_;
2372 2853
2373 if ($who->flag (FLAG_WIZ)) { 2854 if ($who->flag (FLAG_WIZ)) {
2374 $who->message ("start of reload.");
2375 reload;
2376 $who->message ("end of reload."); 2855 $who->message ("reloading server.");
2856 async { reload_perl };
2377 } 2857 }
2378}; 2858};
2379 2859
2380unshift @INC, $LIBDIR; 2860unshift @INC, $LIBDIR;
2381 2861
2862my $bug_warning = 0;
2863
2864our @WAIT_FOR_TICK;
2865our @WAIT_FOR_TICK_BEGIN;
2866
2867sub wait_for_tick {
2868 return unless $TICK_WATCHER->is_active;
2869 return if $Coro::current == $Coro::main;
2870
2871 my $signal = new Coro::Signal;
2872 push @WAIT_FOR_TICK, $signal;
2873 $signal->wait;
2874}
2875
2876sub wait_for_tick_begin {
2877 return unless $TICK_WATCHER->is_active;
2878 return if $Coro::current == $Coro::main;
2879
2880 my $signal = new Coro::Signal;
2881 push @WAIT_FOR_TICK_BEGIN, $signal;
2882 $signal->wait;
2883}
2884
2885 my $min = 1e6;#d#
2886 my $avg = 10;
2382$TICK_WATCHER = Event->timer ( 2887$TICK_WATCHER = Event->timer (
2383 reentrant => 0, 2888 reentrant => 0,
2889 parked => 1,
2384 prio => 0, 2890 prio => 0,
2385 at => $NEXT_TICK || $TICK, 2891 at => $NEXT_TICK || $TICK,
2386 data => WF_AUTOCANCEL, 2892 data => WF_AUTOCANCEL,
2387 cb => sub { 2893 cb => sub {
2894 if ($Coro::current != $Coro::main) {
2895 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2896 unless ++$bug_warning > 10;
2897 return;
2898 }
2899
2388 $NOW = Event::time; 2900 $NOW = $tick_start = Event::time;
2389 2901
2390 cf::server_tick; # one server iteration 2902 cf::server_tick; # one server iteration
2903
2904 0 && sync_job {#d#
2905 for(1..10) {
2906 my $t = Event::time;
2907 my $map = my $map = new_from_path cf::map "/tmp/x.map"
2908 or die;
2909
2910 $map->width (50);
2911 $map->height (50);
2912 $map->alloc;
2913 $map->_load_objects ("/tmp/x.map", 1);
2914 my $t = Event::time - $t;
2915
2916 #next unless $t < 0.0013;#d#
2917 if ($t < $min) {
2918 $min = $t;
2919 }
2920 $avg = $avg * 0.99 + $t * 0.01;
2921 }
2922 warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2923 exit 0;
2924 # 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2925 };
2926
2391 $RUNTIME += $TICK; 2927 $RUNTIME += $TICK;
2392 $NEXT_TICK += $TICK; 2928 $NEXT_TICK += $TICK;
2393 2929
2394 $WAIT_FOR_TICK->broadcast; 2930 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2931 $NEXT_RUNTIME_WRITE = $NOW + 10;
2932 Coro::async_pool {
2933 write_runtime
2934 or warn "ERROR: unable to write runtime file: $!";
2935 };
2936 }
2937
2938# my $AFTER = Event::time;
2939# warn $AFTER - $NOW;#d#
2940
2941 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2942 $sig->send;
2943 }
2944 while (my $sig = shift @WAIT_FOR_TICK) {
2945 $sig->send;
2946 }
2947
2948 $NOW = Event::time;
2396 2949
2397 # if we are delayed by four ticks or more, skip them all 2950 # if we are delayed by four ticks or more, skip them all
2398 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2951 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2399 2952
2400 $TICK_WATCHER->at ($NEXT_TICK); 2953 $TICK_WATCHER->at ($NEXT_TICK);
2401 $TICK_WATCHER->start; 2954 $TICK_WATCHER->start;
2955
2956 $LOAD = ($NOW - $tick_start) / $TICK;
2957 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2958
2959 _post_tick;
2960
2961
2402 }, 2962 },
2403); 2963);
2404 2964
2965{
2405IO::AIO::max_poll_time $TICK * 0.2; 2966 BDB::max_poll_time $TICK * 0.1;
2406 2967 $BDB_POLL_WATCHER = Event->io (
2407Event->io ( 2968 reentrant => 0,
2408 fd => IO::AIO::poll_fileno, 2969 fd => BDB::poll_fileno,
2409 poll => 'r', 2970 poll => 'r',
2410 prio => 5, 2971 prio => 0,
2411 data => WF_AUTOCANCEL,
2412 cb => \&IO::AIO::poll_cb,
2413);
2414
2415Event->timer (
2416 data => WF_AUTOCANCEL, 2972 data => WF_AUTOCANCEL,
2417 after => 0, 2973 cb => \&BDB::poll_cb,
2418 interval => 10, 2974 );
2419 cb => sub { 2975 BDB::min_parallel 8;
2420 (Coro::unblock_sub { 2976
2421 write_runtime 2977 BDB::set_sync_prepare {
2422 or warn "ERROR: unable to write runtime file: $!"; 2978 my $status;
2979 my $current = $Coro::current;
2980 (
2981 sub {
2982 $status = $!;
2983 $current->ready; undef $current;
2984 },
2985 sub {
2986 Coro::schedule while defined $current;
2987 $! = $status;
2988 },
2989 )
2990 };
2991
2992 unless ($DB_ENV) {
2993 $DB_ENV = BDB::db_env_create;
2994
2995 cf::sync_job {
2996 eval {
2997 BDB::db_env_open
2998 $DB_ENV,
2999 $BDBDIR,
3000 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3001 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3002 0666;
3003
3004 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3005
3006 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
3007 $DB_ENV->set_lk_detect;
3008 };
3009
3010 cf::cleanup "db_env_open(db): $@" if $@;
2423 })->(); 3011 };
2424 }, 3012 }
2425); 3013}
3014
3015{
3016 IO::AIO::min_parallel 8;
3017
3018 undef $Coro::AIO::WATCHER;
3019 IO::AIO::max_poll_time $TICK * 0.1;
3020 $AIO_POLL_WATCHER = Event->io (
3021 reentrant => 0,
3022 data => WF_AUTOCANCEL,
3023 fd => IO::AIO::poll_fileno,
3024 poll => 'r',
3025 prio => 6,
3026 cb => \&IO::AIO::poll_cb,
3027 );
3028}
3029
3030my $_log_backtrace;
3031
3032sub _log_backtrace {
3033 my ($msg, @addr) = @_;
3034
3035 $msg =~ s/\n//;
3036
3037 # limit the # of concurrent backtraces
3038 if ($_log_backtrace < 2) {
3039 ++$_log_backtrace;
3040 async {
3041 my @bt = fork_call {
3042 @addr = map { sprintf "%x", $_ } @addr;
3043 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3044 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3045 or die "addr2line: $!";
3046
3047 my @funcs;
3048 my @res = <$fh>;
3049 chomp for @res;
3050 while (@res) {
3051 my ($func, $line) = splice @res, 0, 2, ();
3052 push @funcs, "[$func] $line";
3053 }
3054
3055 @funcs
3056 };
3057
3058 LOG llevInfo, "[ABT] $msg\n";
3059 LOG llevInfo, "[ABT] $_\n" for @bt;
3060 --$_log_backtrace;
3061 };
3062 } else {
3063 LOG llevInfo, "[ABT] $msg\n";
3064 LOG llevInfo, "[ABT] [suppressed]\n";
3065 }
3066}
3067
3068# load additional modules
3069use cf::pod;
2426 3070
2427END { cf::emergency_save } 3071END { cf::emergency_save }
2428 3072
24291 30731
2430 3074

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