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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.172 by root, Sun Jan 14 13:32:48 2007 UTC vs.
Revision 1.269 by root, Tue May 22 21:35:26 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;
49our $AIO_POLL_WATCHER; 74our $AIO_POLL_WATCHER;
50our $WRITE_RUNTIME_WATCHER; 75our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51our $NEXT_TICK; 76our $NEXT_TICK;
52our $NOW; 77our $NOW;
78our $USE_FSYNC = 1; # use fsync to write maps - default off
79
80our $BDB_POLL_WATCHER;
81our $DB_ENV;
53 82
54our %CFG; 83our %CFG;
55 84
56our $UPTIME; $UPTIME ||= time; 85our $UPTIME; $UPTIME ||= time;
57our $RUNTIME; 86our $RUNTIME;
58 87
59our %PLAYER; # all users 88our %PLAYER; # all users
60our %MAP; # all maps 89our %MAP; # all maps
61our $LINK_MAP; # the special {link} map, which is always available 90our $LINK_MAP; # the special {link} map, which is always available
62our $RANDOM_MAPS = cf::localdir . "/random";
63
64our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66 91
67# 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 ∕
68our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 93our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69 94
95our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96our $LOADAVG; # same thing, but with alpha-smoothing
97our $tick_start; # for load detecting purposes
98
70binmode STDOUT; 99binmode STDOUT;
71binmode STDERR; 100binmode STDERR;
72 101
73# read virtual server time, if available 102# read virtual server time, if available
74unless ($RUNTIME || !-e cf::localdir . "/runtime") { 103unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
75 open my $fh, "<", cf::localdir . "/runtime" 104 open my $fh, "<", "$LOCALDIR/runtime"
76 or die "unable to read runtime file: $!"; 105 or die "unable to read runtime file: $!";
77 $RUNTIME = <$fh> + 0.; 106 $RUNTIME = <$fh> + 0.;
78} 107}
79 108
80mkdir cf::localdir; 109mkdir $_
81mkdir cf::localdir . "/" . cf::playerdir; 110 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82mkdir cf::localdir . "/" . cf::tmpdir;
83mkdir cf::localdir . "/" . cf::uniquedir;
84mkdir $RANDOM_MAPS;
85 111
86our $EMERGENCY_POSITION; 112our $EMERGENCY_POSITION;
113
114sub cf::map::normalise;
87 115
88############################################################################# 116#############################################################################
89 117
90=head2 GLOBAL VARIABLES 118=head2 GLOBAL VARIABLES
91 119
98=item $cf::RUNTIME 126=item $cf::RUNTIME
99 127
100The 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
101every server tick. 129every server tick.
102 130
103=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
104 134
105The perl library directory, where extensions and cf-specific modules can 135Various directories - "/etc", read-only install directory, perl-library
106be 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.
107 139
108=item $cf::NOW 140=item $cf::NOW
109 141
110The time of the last (current) server tick. 142The time of the last (current) server tick.
111 143
112=item $cf::TICK 144=item $cf::TICK
113 145
114The 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.
115 157
116=item %cf::CFG 158=item %cf::CFG
117 159
118Configuration for the server, loaded from C</etc/crossfire/config>, or 160Configuration for the server, loaded from C</etc/crossfire/config>, or
119from wherever your confdir points to. 161from wherever your confdir points to.
120 162
121=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE 163=item cf::wait_for_tick, cf::wait_for_tick_begin
122 164
123These 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
124or 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
125processing 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.
126window of cpu time available, or simply to synchronise to the server tick.
127 168
128=back 169=back
129 170
130=cut 171=cut
131 172
132BEGIN { 173BEGIN {
133 *CORE::GLOBAL::warn = sub { 174 *CORE::GLOBAL::warn = sub {
134 my $msg = join "", @_; 175 my $msg = join "", @_;
135 utf8::encode $msg;
136 176
137 $msg .= "\n" 177 $msg .= "\n"
138 unless $msg =~ /\n$/; 178 unless $msg =~ /\n$/;
139 179
180 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181
182 utf8::encode $msg;
140 LOG llevError, $msg; 183 LOG llevError, $msg;
141 }; 184 };
142} 185}
143 186
144@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 187@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
190 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 233 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191 $d 234 $d
192 } || "[unable to dump $_[0]: '$@']"; 235 } || "[unable to dump $_[0]: '$@']";
193} 236}
194 237
195use JSON::Syck (); # TODO# replace by JSON::PC once working 238use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
196 239
197=item $ref = cf::from_json $json 240=item $ref = cf::from_json $json
198 241
199Converts a JSON string into the corresponding perl data structure. 242Converts a JSON string into the corresponding perl data structure.
200 243
201=cut
202
203sub from_json($) {
204 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205 JSON::Syck::Load $_[0]
206}
207
208=item $json = cf::to_json $ref 244=item $json = cf::to_json $ref
209 245
210Converts a perl data structure into its JSON representation. 246Converts a perl data structure into its JSON representation.
211
212=cut
213
214sub to_json($) {
215 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
216 JSON::Syck::Dump $_[0]
217}
218 247
219=item cf::lock_wait $string 248=item cf::lock_wait $string
220 249
221Wait until the given lock is available. See cf::lock_acquire. 250Wait until the given lock is available. See cf::lock_acquire.
222 251
228returned. 257returned.
229 258
230Lock names should begin with a unique identifier (for example, cf::map::find 259Lock names should begin with a unique identifier (for example, cf::map::find
231uses map_find and cf::map::load uses map_load). 260uses map_find and cf::map::load uses map_load).
232 261
262=item $locked = cf::lock_active $string
263
264Return true if the lock is currently active, i.e. somebody has locked it.
265
233=cut 266=cut
234 267
235our %LOCK; 268our %LOCK;
236 269
237sub lock_wait($) { 270sub lock_wait($) {
256 # wake up all waiters, to be on the safe side 289 # wake up all waiters, to be on the safe side
257 $_->ready for @{ delete $LOCK{$key} }; 290 $_->ready for @{ delete $LOCK{$key} };
258 } 291 }
259} 292}
260 293
294sub lock_active($) {
295 my ($key) = @_;
296
297 ! ! $LOCK{$key}
298}
299
261sub freeze_mainloop { 300sub freeze_mainloop {
262 return unless $TICK_WATCHER->is_active; 301 return unless $TICK_WATCHER->is_active;
263 302
264 my $guard = Coro::guard { 303 my $guard = Coro::guard {
265 $TICK_WATCHER->start; 304 $TICK_WATCHER->start;
266 $WRITE_RUNTIME_WATCHER->start;
267 }; 305 };
268 $WRITE_RUNTIME_WATCHER->stop;
269 $TICK_WATCHER->stop; 306 $TICK_WATCHER->stop;
270 $guard 307 $guard
271} 308}
272 309
273=item cf::async { BLOCK } 310=item cf::async { BLOCK }
295 332
296sub sync_job(&) { 333sub sync_job(&) {
297 my ($job) = @_; 334 my ($job) = @_;
298 335
299 if ($Coro::current == $Coro::main) { 336 if ($Coro::current == $Coro::main) {
337 my $time = Event::time;
338
300 # this is the main coro, too bad, we have to block 339 # this is the main coro, too bad, we have to block
301 # till the operation succeeds, freezing the server :/ 340 # till the operation succeeds, freezing the server :/
302 341
303 # TODO: use suspend/resume instead 342 # TODO: use suspend/resume instead
304 # (but this is cancel-safe) 343 # (but this is cancel-safe)
315 354
316 while ($busy) { 355 while ($busy) {
317 Coro::cede or Event::one_event; 356 Coro::cede or Event::one_event;
318 } 357 }
319 358
359 $time = Event::time - $time;
360
361 LOG llevError | logBacktrace, Carp::longmess "long sync job"
362 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364 $tick_start += $time; # do not account sync jobs to server load
365
320 wantarray ? @res : $res[0] 366 wantarray ? @res : $res[0]
321 } else { 367 } else {
322 # we are in another coroutine, how wonderful, everything just works 368 # we are in another coroutine, how wonderful, everything just works
323 369
324 $job->() 370 $job->()
344 390
345 $coro 391 $coro
346} 392}
347 393
348sub write_runtime { 394sub write_runtime {
349 my $runtime = cf::localdir . "/runtime"; 395 my $runtime = "$LOCALDIR/runtime";
396
397 # first touch the runtime file to show we are still running:
398 # the fsync below can take a very very long time.
399
400 if (my $fh = aio_open $runtime, O_WRONLY, 0) {
401 utime undef, undef, $fh;
402 }
403
404 my $guard = cf::lock_acquire "write_runtime";
350 405
351 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 406 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
352 or return; 407 or return;
353 408
409 my $value = $cf::RUNTIME + 90 + 10;
354 my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock 410 # 10 is the runtime save interval, for a monotonic clock
411 # 60 allows for the watchdog to kill the server.
412
355 (aio_write $fh, 0, (length $value), $value, 0) <= 0 413 (aio_write $fh, 0, (length $value), $value, 0) <= 0
356 and return; 414 and return;
357 415
416 # always fsync - this file is important
358 aio_fsync $fh 417 aio_fsync $fh
359 and return; 418 and return;
360 419
420 # touch it again to show we are up-to-date
421 utime undef, undef, $fh;
422
361 close $fh 423 close $fh
362 or return; 424 or return;
363 425
364 aio_rename "$runtime~", $runtime 426 aio_rename "$runtime~", $runtime
365 and return; 427 and return;
366 428
429 warn "runtime file written.\n";#d#
430
367 1 431 1
432}
433
434=item cf::datalog type => key => value, ...
435
436Log a datalog packet of the given type with the given key-value pairs.
437
438=cut
439
440sub datalog($@) {
441 my ($type, %kv) = @_;
442 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368} 443}
369 444
370=back 445=back
371 446
372=cut 447=cut
552 $registry = $CB_TYPE[$object_type] ||= []; 627 $registry = $CB_TYPE[$object_type] ||= [];
553 628
554 } elsif ($type eq "subtype") { 629 } elsif ($type eq "subtype") {
555 defined $object_type or Carp::croak "subtype specified without type"; 630 defined $object_type or Carp::croak "subtype specified without type";
556 my $object_subtype = shift @arg; 631 my $object_subtype = shift @arg;
557 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= []; 632 $registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558 633
559 } elsif ($type eq "package") { 634 } elsif ($type eq "package") {
560 my $pkg = shift @arg; 635 my $pkg = shift @arg;
561 636
562 while (my ($name, $id) = each %cb_id) { 637 while (my ($name, $id) = each %cb_id) {
603 if (ref $_[0]) { 678 if (ref $_[0]) {
604 _object_attach @_; 679 _object_attach @_;
605 } else { 680 } else {
606 _attach shift->_attach_registry, @_; 681 _attach shift->_attach_registry, @_;
607 } 682 }
683 _recalc_want;
608}; 684};
609 685
610# all those should be optimised 686# all those should be optimised
611sub cf::attachable::detach { 687sub cf::attachable::detach {
612 my ($obj, $name) = @_; 688 my ($obj, $name) = @_;
615 delete $obj->{_attachment}{$name}; 691 delete $obj->{_attachment}{$name};
616 reattach ($obj); 692 reattach ($obj);
617 } else { 693 } else {
618 Carp::croak "cannot, currently, detach class attachments"; 694 Carp::croak "cannot, currently, detach class attachments";
619 } 695 }
696 _recalc_want;
620}; 697};
621 698
622sub cf::attachable::attached { 699sub cf::attachable::attached {
623 my ($obj, $name) = @_; 700 my ($obj, $name) = @_;
624 701
747 $filename, length $$rdata, scalar @$objs; 824 $filename, length $$rdata, scalar @$objs;
748 825
749 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { 826 if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750 chmod SAVE_MODE, $fh; 827 chmod SAVE_MODE, $fh;
751 aio_write $fh, 0, (length $$rdata), $$rdata, 0; 828 aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752 aio_fsync $fh; 829 aio_fsync $fh if $cf::USE_FSYNC;
753 close $fh; 830 close $fh;
754 831
755 if (@$objs) { 832 if (@$objs) {
756 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { 833 if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757 chmod SAVE_MODE, $fh; 834 chmod SAVE_MODE, $fh;
758 my $data = Storable::nfreeze { version => 1, objs => $objs }; 835 my $data = Storable::nfreeze { version => 1, objs => $objs };
759 aio_write $fh, 0, (length $data), $data, 0; 836 aio_write $fh, 0, (length $data), $data, 0;
760 aio_fsync $fh; 837 aio_fsync $fh if $cf::USE_FSYNC;
761 close $fh; 838 close $fh;
762 aio_rename "$filename.pst~", "$filename.pst"; 839 aio_rename "$filename.pst~", "$filename.pst";
763 } 840 }
764 } else { 841 } else {
765 aio_unlink "$filename.pst"; 842 aio_unlink "$filename.pst";
934Returns the given player object, loading it if necessary (might block). 1011Returns the given player object, loading it if necessary (might block).
935 1012
936=cut 1013=cut
937 1014
938sub playerdir($) { 1015sub playerdir($) {
939 cf::localdir 1016 "$PLAYERDIR/"
940 . "/"
941 . cf::playerdir
942 . "/"
943 . (ref $_[0] ? $_[0]->ob->name : $_[0]) 1017 . (ref $_[0] ? $_[0]->ob->name : $_[0])
944} 1018}
945 1019
946sub path($) { 1020sub path($) {
947 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 1021 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948 1022
949 (playerdir $login) . "/$login.pl" 1023 (playerdir $login) . "/playerdata"
950} 1024}
951 1025
952sub find_active($) { 1026sub find_active($) {
953 $cf::PLAYER{$_[0]} 1027 $cf::PLAYER{$_[0]}
954 and $cf::PLAYER{$_[0]}->active 1028 and $cf::PLAYER{$_[0]}->active
957 1031
958sub exists($) { 1032sub exists($) {
959 my ($login) = @_; 1033 my ($login) = @_;
960 1034
961 $cf::PLAYER{$login} 1035 $cf::PLAYER{$login}
962 or cf::sync_job { !aio_stat $login } 1036 or cf::sync_job { !aio_stat path $login }
963} 1037}
964 1038
965sub find($) { 1039sub find($) {
966 return $cf::PLAYER{$_[0]} || do { 1040 return $cf::PLAYER{$_[0]} || do {
967 my $login = $_[0]; 1041 my $login = $_[0];
968 1042
969 my $guard = cf::lock_acquire "user_find:$login"; 1043 my $guard = cf::lock_acquire "user_find:$login";
970 1044
971 $cf::PLAYER{$_[0]} || do { 1045 $cf::PLAYER{$_[0]} || do {
1046 # rename old playerfiles to new ones
1047 #TODO: remove when no longer required
1048 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1049 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1050 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1051 aio_unlink +(playerdir $login) . "/$login.pl";
1052
972 my $pl = load_pl path $login 1053 my $pl = load_pl path $login
973 or return; 1054 or return;
974 $cf::PLAYER{$login} = $pl 1055 $cf::PLAYER{$login} = $pl
975 } 1056 }
976 } 1057 }
1013 1094
1014=cut 1095=cut
1015 1096
1016sub quit_character { 1097sub quit_character {
1017 my ($pl) = @_; 1098 my ($pl) = @_;
1099
1100 my $name = $pl->ob->name;
1018 1101
1019 $pl->{deny_save} = 1; 1102 $pl->{deny_save} = 1;
1020 $pl->password ("*"); # this should lock out the player until we nuked the dir 1103 $pl->password ("*"); # this should lock out the player until we nuked the dir
1021 1104
1022 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1105 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1027 my $path = playerdir $pl; 1110 my $path = playerdir $pl;
1028 my $temp = "$path~$cf::RUNTIME~deleting~"; 1111 my $temp = "$path~$cf::RUNTIME~deleting~";
1029 aio_rename $path, $temp; 1112 aio_rename $path, $temp;
1030 delete $cf::PLAYER{$pl->ob->name}; 1113 delete $cf::PLAYER{$pl->ob->name};
1031 $pl->destroy; 1114 $pl->destroy;
1115
1116 my $prefix = qr<^~\Q$name\E/>;
1117
1118 # nuke player maps
1119 $cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
1120
1032 IO::AIO::aio_rmtree $temp; 1121 IO::AIO::aio_rmtree $temp;
1122}
1123
1124=item $pl->kick
1125
1126Kicks a player out of the game. This destroys the connection.
1127
1128=cut
1129
1130sub kick {
1131 my ($pl, $kicker) = @_;
1132
1133 $pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
1134 $pl->killer ("kicked");
1135 $pl->ns->destroy;
1033} 1136}
1034 1137
1035=item cf::player::list_logins 1138=item cf::player::list_logins
1036 1139
1037Returns am arrayref of all valid playernames in the system, can take a 1140Returns am arrayref of all valid playernames in the system, can take a
1038while and may block, so not sync_job-capable, ever. 1141while and may block, so not sync_job-capable, ever.
1039 1142
1040=cut 1143=cut
1041 1144
1042sub list_logins { 1145sub list_logins {
1043 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir 1146 my $dirs = aio_readdir $PLAYERDIR
1044 or return []; 1147 or return [];
1045 1148
1046 my @logins; 1149 my @logins;
1047 1150
1048 for my $login (@$dirs) { 1151 for my $login (@$dirs) {
1065=cut 1168=cut
1066 1169
1067sub maps($) { 1170sub maps($) {
1068 my ($pl) = @_; 1171 my ($pl) = @_;
1069 1172
1173 $pl = ref $pl ? $pl->ob->name : $pl;
1174
1070 my $files = aio_readdir playerdir $pl 1175 my $files = aio_readdir playerdir $pl
1071 or return; 1176 or return;
1072 1177
1073 my @paths; 1178 my @paths;
1074 1179
1075 for (@$files) { 1180 for (@$files) {
1076 utf8::decode $_; 1181 utf8::decode $_;
1077 next if /\.(?:pl|pst)$/; 1182 next if /\.(?:pl|pst)$/;
1078 next unless /^$PATH_SEP/o; 1183 next unless /^$PATH_SEP/o;
1079 1184
1080 s/\.map$//; 1185 push @paths, cf::map::normalise "~$pl/$_";
1081 push @paths, "~" . $pl->ob->name . "/" . $_;
1082 } 1186 }
1083 1187
1084 \@paths 1188 \@paths
1085} 1189}
1086 1190
1087=item $player->ext_reply ($msgid, $msgtype, %msg) 1191=item $player->ext_reply ($msgid, %msg)
1088 1192
1089Sends an ext reply to the player. 1193Sends an ext reply to the player.
1090 1194
1091=cut 1195=cut
1092 1196
1093sub ext_reply($$$%) { 1197sub ext_reply($$%) {
1094 my ($self, $id, %msg) = @_; 1198 my ($self, $id, %msg) = @_;
1095 1199
1096 $msg{msgid} = $id; 1200 $msg{msgid} = $id;
1097 1201
1098 $self->send ("ext " . cf::to_json \%msg); 1202 $self->send ("ext " . cf::to_json \%msg);
1099} 1203}
1100 1204
1101package cf; 1205=item $player->ext_event ($type, %msg)
1206
1207Sends an ext event to the client.
1208
1209=cut
1210
1211sub ext_event($$%) {
1212 my ($self, $type, %msg) = @_;
1213
1214 $self->ns->ext_event ($type, %msg);
1215}
1216
1217=head3 cf::region
1218
1219=over 4
1220
1221=cut
1222
1223package cf::region;
1224
1225=item cf::region::find_by_path $path
1226
1227Tries to decuce the probable region for a map knowing only its path.
1228
1229=cut
1230
1231sub find_by_path($) {
1232 my ($path) = @_;
1233
1234 my ($match, $specificity);
1235
1236 for my $region (list) {
1237 if ($region->match && $path =~ $region->match) {
1238 ($match, $specificity) = ($region, $region->specificity)
1239 if $region->specificity > $specificity;
1240 }
1241 }
1242
1243 $match
1244}
1102 1245
1103=back 1246=back
1104
1105 1247
1106=head3 cf::map 1248=head3 cf::map
1107 1249
1108=over 4 1250=over 4
1109 1251
1113 1255
1114use Fcntl; 1256use Fcntl;
1115use Coro::AIO; 1257use Coro::AIO;
1116 1258
1117use overload 1259use overload
1118 '""' => \&as_string; 1260 '""' => \&as_string,
1261 fallback => 1;
1119 1262
1120our $MAX_RESET = 3600; 1263our $MAX_RESET = 3600;
1121our $DEFAULT_RESET = 3000; 1264our $DEFAULT_RESET = 3000;
1122 1265
1123sub generate_random_map { 1266sub generate_random_map {
1124 my ($self, $rmp) = @_; 1267 my ($self, $rmp) = @_;
1125
1126 # mit "rum" bekleckern, nicht 1268 # mit "rum" bekleckern, nicht
1127 $self->_create_random_map ( 1269 $self->_create_random_map (
1128 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1270 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1271 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1272 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1137 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, 1279 $rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138 (cf::region::find $rmp->{region}), $rmp->{custom} 1280 (cf::region::find $rmp->{region}), $rmp->{custom}
1139 ) 1281 )
1140} 1282}
1141 1283
1284=item cf::map->register ($regex, $prio)
1285
1286Register a handler for the map path matching the given regex at the
1287givne priority (higher is better, built-in handlers have priority 0, the
1288default).
1289
1290=cut
1291
1142sub register { 1292sub register {
1143 my (undef, $regex) = @_; 1293 my (undef, $regex, $prio) = @_;
1144 my $pkg = caller; 1294 my $pkg = caller;
1145 1295
1146 no strict; 1296 no strict;
1147 push @{"$pkg\::ISA"}, __PACKAGE__; 1297 push @{"$pkg\::ISA"}, __PACKAGE__;
1148 1298
1149 $EXT_MAP{$pkg} = qr<$regex>; 1299 $EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150} 1300}
1151 1301
1152# also paths starting with '/' 1302# also paths starting with '/'
1153$EXT_MAP{"cf::map"} = qr{^(?=/)}; 1303$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154 1304
1155sub thawer_merge { 1305sub thawer_merge {
1156 my ($self, $merge) = @_; 1306 my ($self, $merge) = @_;
1157 1307
1158 # we have to keep some variables in memory intact 1308 # we have to keep some variables in memory intact
1164 $self->SUPER::thawer_merge ($merge); 1314 $self->SUPER::thawer_merge ($merge);
1165} 1315}
1166 1316
1167sub normalise { 1317sub normalise {
1168 my ($path, $base) = @_; 1318 my ($path, $base) = @_;
1319
1320 $path = "$path"; # make sure its a string
1321
1322 $path =~ s/\.map$//;
1169 1323
1170 # map plan: 1324 # map plan:
1171 # 1325 #
1172 # /! non-realised random map exit (special hack!) 1326 # /! non-realised random map exit (special hack!)
1173 # {... are special paths that are not being touched 1327 # {... are special paths that are not being touched
1201 1355
1202 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object 1356 return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203 1357
1204 $path = normalise $path, $base; 1358 $path = normalise $path, $base;
1205 1359
1206 for my $pkg (keys %EXT_MAP) { 1360 for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207 if ($path =~ $EXT_MAP{$pkg}) { 1361 if ($path =~ $EXT_MAP{$pkg}[1]) {
1208 my $self = bless cf::map::new, $pkg; 1362 my $self = bless cf::map::new, $pkg;
1209 $self->{path} = $path; $self->path ($path); 1363 $self->{path} = $path; $self->path ($path);
1210 $self->init; # pass $1 etc. 1364 $self->init; # pass $1 etc.
1211 return $self; 1365 return $self;
1212 } 1366 }
1213 } 1367 }
1214 1368
1215 Carp::carp "unable to resolve path '$path'."; 1369 Carp::carp "unable to resolve path '$path' (base '$base').";
1216 () 1370 ()
1217} 1371}
1218 1372
1219sub init { 1373sub init {
1220 my ($self) = @_; 1374 my ($self) = @_;
1235 1389
1236# the original (read-only) location 1390# the original (read-only) location
1237sub load_path { 1391sub load_path {
1238 my ($self) = @_; 1392 my ($self) = @_;
1239 1393
1240 sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path} 1394 "$MAPDIR/$self->{path}.map"
1241} 1395}
1242 1396
1243# the temporary/swap location 1397# the temporary/swap location
1244sub save_path { 1398sub save_path {
1245 my ($self) = @_; 1399 my ($self) = @_;
1246 1400
1247 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1401 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1248 sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path 1402 "$TMPDIR/$path.map"
1249} 1403}
1250 1404
1251# the unique path, undef == no special unique path 1405# the unique path, undef == no special unique path
1252sub uniq_path { 1406sub uniq_path {
1253 my ($self) = @_; 1407 my ($self) = @_;
1254 1408
1255 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1409 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1256 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path 1410 "$UNIQUEDIR/$path"
1257} 1411}
1258 1412
1259# and all this just because we cannot iterate over 1413# and all this just because we cannot iterate over
1260# all maps in C++... 1414# all maps in C++...
1261sub change_all_map_light { 1415sub change_all_map_light {
1275 1429
1276sub load_header_from($) { 1430sub load_header_from($) {
1277 my ($self, $path) = @_; 1431 my ($self, $path) = @_;
1278 1432
1279 utf8::encode $path; 1433 utf8::encode $path;
1280 aio_open $path, O_RDONLY, 0 1434 #aio_open $path, O_RDONLY, 0
1281 or return; 1435 # or return;
1282 1436
1283 $self->_load_header ($path) 1437 $self->_load_header ($path)
1284 or return; 1438 or return;
1285 1439
1286 $self->{load_path} = $path; 1440 $self->{load_path} = $path;
1287 1441
1288 1 1442 1
1289} 1443}
1290 1444
1291sub load_orig { 1445sub load_header_orig {
1292 my ($self) = @_; 1446 my ($self) = @_;
1293 1447
1294 $self->load_header_from ($self->load_path) 1448 $self->load_header_from ($self->load_path)
1295} 1449}
1296 1450
1297sub load_temp { 1451sub load_header_temp {
1298 my ($self) = @_; 1452 my ($self) = @_;
1299 1453
1300 $self->load_header_from ($self->save_path) 1454 $self->load_header_from ($self->save_path)
1455}
1456
1457sub prepare_temp {
1458 my ($self) = @_;
1459
1460 $self->last_access ((delete $self->{last_access})
1461 || $cf::RUNTIME); #d#
1462 # safety
1463 $self->{instantiate_time} = $cf::RUNTIME
1464 if $self->{instantiate_time} > $cf::RUNTIME;
1465}
1466
1467sub prepare_orig {
1468 my ($self) = @_;
1469
1470 $self->{load_original} = 1;
1471 $self->{instantiate_time} = $cf::RUNTIME;
1472 $self->last_access ($cf::RUNTIME);
1473 $self->instantiate;
1301} 1474}
1302 1475
1303sub load_header { 1476sub load_header {
1304 my ($self) = @_; 1477 my ($self) = @_;
1305 1478
1306 if ($self->load_temp) { 1479 if ($self->load_header_temp) {
1307 $self->last_access ((delete $self->{last_access}) 1480 $self->prepare_temp;
1308 || $cf::RUNTIME); #d#
1309 # safety
1310 $self->{instantiate_time} = $cf::RUNTIME
1311 if $self->{instantiate_time} > $cf::RUNTIME;
1312 } else { 1481 } else {
1313 $self->load_orig 1482 $self->load_header_orig
1314 or return; 1483 or return;
1315 1484 $self->prepare_orig;
1316 $self->{load_original} = 1;
1317 $self->{instantiate_time} = $cf::RUNTIME;
1318 $self->last_access ($cf::RUNTIME);
1319 $self->instantiate;
1320 } 1485 }
1486
1487 $self->default_region (cf::region::find_by_path $self->{path})
1488 unless $self->default_region;
1321 1489
1322 1 1490 1
1323} 1491}
1324 1492
1325sub find; 1493sub find;
1338 $map->{last_save} = $cf::RUNTIME; 1506 $map->{last_save} = $cf::RUNTIME;
1339 1507
1340 $map->load_header 1508 $map->load_header
1341 or return; 1509 or return;
1342 1510
1343 if ($map->should_reset) { 1511 if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)
1512 # doing this can freeze the server in a sync job, obviously
1344 $cf::WAIT_FOR_TICK->wait; 1513 #$cf::WAIT_FOR_TICK->wait;
1345 $map->reset; 1514 $map->reset;
1346 undef $guard; 1515 undef $guard;
1347 $map = find $path 1516 return find $path;
1348 or return;
1349 } 1517 }
1350 1518
1351 $cf::MAP{$path} = $map 1519 $cf::MAP{$path} = $map
1352 } 1520 }
1353} 1521}
1522
1523sub pre_load { }
1524sub post_load { }
1354 1525
1355sub load { 1526sub load {
1356 my ($self) = @_; 1527 my ($self) = @_;
1357 1528
1529 local $self->{deny_reset} = 1; # loading can take a long time
1530
1358 my $path = $self->{path}; 1531 my $path = $self->{path};
1532
1533 {
1359 my $guard = cf::lock_acquire "map_load:$path"; 1534 my $guard = cf::lock_acquire "map_load:$path";
1360 1535
1361 return if $self->in_memory != cf::MAP_SWAPPED; 1536 return if $self->in_memory != cf::MAP_SWAPPED;
1362 1537
1363 $self->in_memory (cf::MAP_LOADING); 1538 $self->in_memory (cf::MAP_LOADING);
1364 1539
1365 $self->alloc; 1540 $self->alloc;
1366 $self->_load_objects ($self->{load_path}, 1)
1367 or return;
1368 1541
1369 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1542 $self->pre_load;
1370 if delete $self->{load_original};
1371
1372 if (my $uniq = $self->uniq_path) {
1373 utf8::encode $uniq;
1374 if (aio_open $uniq, O_RDONLY, 0) {
1375 $self->clear_unique_items;
1376 $self->_load_objects ($uniq, 0);
1377 }
1378 }
1379
1380 Coro::cede;
1381
1382 # now do the right thing for maps
1383 $self->link_multipart_objects;
1384
1385 unless ($self->{deny_activate}) {
1386 $self->decay_objects;
1387 $self->fix_auto_apply;
1388 $self->update_buttons;
1389 Coro::cede; 1543 Coro::cede;
1390 $self->set_darkness_map; 1544
1545 $self->_load_objects ($self->{load_path}, 1)
1546 or return;
1547
1548 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1549 if delete $self->{load_original};
1550
1551 if (my $uniq = $self->uniq_path) {
1552 utf8::encode $uniq;
1553 if (aio_open $uniq, O_RDONLY, 0) {
1554 $self->clear_unique_items;
1555 $self->_load_objects ($uniq, 0);
1556 }
1557 }
1558
1559 Coro::cede;
1560 # now do the right thing for maps
1561 $self->link_multipart_objects;
1391 $self->difficulty ($self->estimate_difficulty) 1562 $self->difficulty ($self->estimate_difficulty)
1392 unless $self->difficulty; 1563 unless $self->difficulty;
1393 Coro::cede; 1564 Coro::cede;
1565
1566 unless ($self->{deny_activate}) {
1567 $self->decay_objects;
1568 $self->fix_auto_apply;
1569 $self->update_buttons;
1570 Coro::cede;
1571 $self->set_darkness_map;
1572 Coro::cede;
1394 $self->activate; 1573 $self->activate;
1395 } 1574 }
1396 1575
1397 $self->in_memory (cf::MAP_IN_MEMORY); 1576 $self->in_memory (cf::MAP_IN_MEMORY);
1577 }
1578
1579 $self->post_load;
1398} 1580}
1399 1581
1400sub customise_for { 1582sub customise_for {
1401 my ($self, $ob) = @_; 1583 my ($self, $ob) = @_;
1402 1584
1441 1623
1442 cf::sync_job { $map->load }; 1624 cf::sync_job { $map->load };
1443} 1625}
1444 1626
1445our %MAP_PREFETCH; 1627our %MAP_PREFETCH;
1446our $MAP_PREFETCHER = Coro::async { 1628our $MAP_PREFETCHER = undef;
1447 while () {
1448 for my $path (keys %MAP_PREFETCH) {
1449 my $map = find $path
1450 or next;
1451 $map->load;
1452
1453 delete $MAP_PREFETCH{$path};
1454 }
1455 Coro::schedule;
1456 }
1457};
1458 1629
1459sub find_async { 1630sub find_async {
1460 my ($path, $origin) = @_; 1631 my ($path, $origin) = @_;
1461 1632
1462 $path = normalise $path, $origin && $origin->{path}; 1633 $path = normalise $path, $origin && $origin->{path};
1463 1634
1464 if (my $map = $cf::MAP{$path}) { 1635 if (my $map = $cf::MAP{$path}) {
1465 return $map if $map->in_memory == cf::MAP_IN_MEMORY; 1636 return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1466 } 1637 }
1467 1638
1468 $MAP_PREFETCH{$path} = 0; 1639 undef $MAP_PREFETCH{$path};
1640 $MAP_PREFETCHER ||= cf::async {
1641 while (%MAP_PREFETCH) {
1642 for my $path (keys %MAP_PREFETCH) {
1643 my $map = find $path
1644 or next;
1645 $map->load;
1646
1647 delete $MAP_PREFETCH{$path};
1648 }
1649 }
1650 undef $MAP_PREFETCHER;
1651 };
1469 $MAP_PREFETCHER->ready; 1652 $MAP_PREFETCHER->prio (6);
1470 1653
1471 () 1654 ()
1472} 1655}
1473 1656
1474sub save { 1657sub save {
1534 my ($self) = @_; 1717 my ($self) = @_;
1535 1718
1536 $self->reset_at <= $cf::RUNTIME 1719 $self->reset_at <= $cf::RUNTIME
1537} 1720}
1538 1721
1539sub rename {
1540 my ($self, $new_path) = @_;
1541
1542 normalise $new_path;
1543
1544 $self->unlink_save;
1545
1546 delete $cf::MAP{$self->path};
1547 $self->{path} = $new_path; $self->path ($self->{path});
1548 $cf::MAP{$self->path} = $self;
1549
1550 $self->save;
1551}
1552
1553sub reset { 1722sub reset {
1554 my ($self) = @_; 1723 my ($self) = @_;
1555 1724
1556 my $lock = cf::lock_acquire "map_data:$self->{path}"; 1725 my $lock = cf::lock_acquire "map_data:$self->{path}";
1557 1726
1558 return if $self->players; 1727 return if $self->players;
1559 return if $self->isa ("ext::map_per_player");#d# 1728 return if $self->isa ("ext::map_per_player");#d#
1560 1729
1561 warn "resetting map ", $self->path;#d# 1730 warn "resetting map ", $self->path;#d#
1562 1731
1732 $self->in_memory (cf::MAP_SWAPPED);
1733
1734 # need to save uniques path
1735 unless ($self->{deny_save}) {
1736 my $uniq = $self->uniq_path; utf8::encode $uniq;
1737
1738 $self->_save_objects ($uniq, cf::IO_UNIQUES)
1739 if $uniq;
1740 }
1741
1563 delete $cf::MAP{$self->path}; 1742 delete $cf::MAP{$self->path};
1564 1743
1565 $self->in_memory (cf::MAP_SWAPPED);
1566 $self->clear; 1744 $self->clear;
1567 1745
1568 $_->clear_links_to ($self) for values %cf::MAP; 1746 $_->clear_links_to ($self) for values %cf::MAP;
1569 1747
1570 $self->unlink_save; 1748 $self->unlink_save;
1574my $nuke_counter = "aaaa"; 1752my $nuke_counter = "aaaa";
1575 1753
1576sub nuke { 1754sub nuke {
1577 my ($self) = @_; 1755 my ($self) = @_;
1578 1756
1757 delete $cf::MAP{$self->path};
1758
1759 $self->unlink_save;
1760
1761 bless $self, "cf::map";
1762 delete $self->{deny_reset};
1579 $self->{deny_save} = 1; 1763 $self->{deny_save} = 1;
1580 $self->reset_timeout (1); 1764 $self->reset_timeout (1);
1581 $self->rename ("{nuke}/" . ($nuke_counter++)); 1765 $self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1766
1767 $cf::MAP{$self->path} = $self;
1768
1582 $self->reset; # polite request, might not happen 1769 $self->reset; # polite request, might not happen
1583} 1770}
1584 1771
1585=item cf::map::unique_maps 1772=item cf::map::unique_maps
1586 1773
1588instantiated unique items. May block. 1775instantiated unique items. May block.
1589 1776
1590=cut 1777=cut
1591 1778
1592sub unique_maps() { 1779sub unique_maps() {
1593 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir 1780 my $files = aio_readdir $UNIQUEDIR
1594 or return; 1781 or return;
1595 1782
1596 my @paths; 1783 my @paths;
1597 1784
1598 for (@$files) { 1785 for (@$files) {
1599 utf8::decode $_; 1786 utf8::decode $_;
1600 next if /\.pst$/; 1787 next if /\.pst$/;
1601 next unless /^$PATH_SEP/o; 1788 next unless /^$PATH_SEP/o;
1602 1789
1603 s/\.map$//; 1790 push @paths, cf::map::normalise $_;
1604 push @paths, $_;
1605 } 1791 }
1606 1792
1607 \@paths 1793 \@paths
1608} 1794}
1609 1795
1703=cut 1889=cut
1704 1890
1705sub link_map { 1891sub link_map {
1706 unless ($LINK_MAP) { 1892 unless ($LINK_MAP) {
1707 $LINK_MAP = cf::map::find "{link}" 1893 $LINK_MAP = cf::map::find "{link}"
1708 or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 }; 1894 or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1709 $LINK_MAP->load; 1895 $LINK_MAP->load;
1710 } 1896 }
1711 1897
1712 $LINK_MAP 1898 $LINK_MAP
1713} 1899}
1720 return if UNIVERSAL::isa $self->map, "ext::map_link"; 1906 return if UNIVERSAL::isa $self->map, "ext::map_link";
1721 1907
1722 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] 1908 $self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1723 if $self->map; 1909 if $self->map;
1724 1910
1725 $self->enter_map ($LINK_MAP || link_map, 20, 20); 1911 $self->enter_map ($LINK_MAP || link_map, 10, 10);
1726} 1912}
1727 1913
1728sub cf::object::player::leave_link { 1914sub cf::object::player::leave_link {
1729 my ($self, $map, $x, $y) = @_; 1915 my ($self, $map, $x, $y) = @_;
1730 1916
1752 $map->load; 1938 $map->load;
1753 $map->load_diag; 1939 $map->load_diag;
1754 1940
1755 return unless $self->contr->active; 1941 return unless $self->contr->active;
1756 $self->activate_recursive; 1942 $self->activate_recursive;
1943
1944 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1757 $self->enter_map ($map, $x, $y); 1945 $self->enter_map ($map, $x, $y);
1758} 1946}
1759 1947
1760cf::player->attach ( 1948cf::player->attach (
1761 on_logout => sub { 1949 on_logout => sub {
1774 # try to abort aborted map switching on player login :) 1962 # try to abort aborted map switching on player login :)
1775 # should happen only on crashes 1963 # should happen only on crashes
1776 if ($pl->ob->{_link_pos}) { 1964 if ($pl->ob->{_link_pos}) {
1777 $pl->ob->enter_link; 1965 $pl->ob->enter_link;
1778 (async { 1966 (async {
1779 # we need this sleep as the login has a concurrent enter_exit running
1780 # and this sleep increases chances of the player not ending up in scorn
1781 $pl->ob->reply (undef, 1967 $pl->ob->reply (undef,
1782 "There was an internal problem at your last logout, " 1968 "There was an internal problem at your last logout, "
1783 . "the server will try to bring you to your intended destination in a second.", 1969 . "the server will try to bring you to your intended destination in a second.",
1784 cf::NDI_RED); 1970 cf::NDI_RED);
1971 # we need this sleep as the login has a concurrent enter_exit running
1972 # and this sleep increases chances of the player not ending up in scorn
1785 Coro::Timer::sleep 1; 1973 Coro::Timer::sleep 1;
1786 $pl->ob->leave_link; 1974 $pl->ob->leave_link;
1787 })->prio (2); 1975 })->prio (2);
1788 } 1976 }
1789 }, 1977 },
1790); 1978);
1791 1979
1792=item $player_object->goto ($path, $x, $y) 1980=item $player_object->goto ($path, $x, $y[, $check->($map)])
1981
1982Moves the player to the given map-path and coordinates by first freezing
1983her, loading and preparing them map, calling the provided $check callback
1984that has to return the map if sucecssful, and then unfreezes the player on
1985the new (success) or old (failed) map position.
1793 1986
1794=cut 1987=cut
1795 1988
1796sub cf::object::player::goto { 1989sub cf::object::player::goto {
1797 my ($self, $path, $x, $y) = @_; 1990 my ($self, $path, $x, $y, $check) = @_;
1798 1991
1799 $self->enter_link; 1992 $self->enter_link;
1800 1993
1801 (async { 1994 (async {
1995 my $map = eval {
1802 my $map = cf::map::find $path; 1996 my $map = cf::map::find $path;
1997
1998 if ($map) {
1803 $map = $map->customise_for ($self) if $map; 1999 $map = $map->customise_for ($self);
1804 2000 $map = $check->($map) if $check && $map;
1805# warn "entering ", $map->path, " at ($x, $y)\n" 2001 } else {
1806# if $map;
1807
1808 $map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED); 2002 $self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
2003 }
2004
2005 $map
2006 };
2007
2008 if ($@) {
2009 $self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
2010 LOG llevError | logBacktrace, Carp::longmess $@;
2011 }
1809 2012
1810 $self->leave_link ($map, $x, $y); 2013 $self->leave_link ($map, $x, $y);
1811 })->prio (1); 2014 })->prio (1);
1812} 2015}
1813 2016
1817 2020
1818sub parse_random_map_params { 2021sub parse_random_map_params {
1819 my ($spec) = @_; 2022 my ($spec) = @_;
1820 2023
1821 my $rmp = { # defaults 2024 my $rmp = { # defaults
1822 xsize => 10, 2025 xsize => (cf::rndm 15, 40),
1823 ysize => 10, 2026 ysize => (cf::rndm 15, 40),
2027 symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
2028 #layout => string,
1824 }; 2029 };
1825 2030
1826 for (split /\n/, $spec) { 2031 for (split /\n/, $spec) {
1827 my ($k, $v) = split /\s+/, $_, 2; 2032 my ($k, $v) = split /\s+/, $_, 2;
1828 2033
1832 $rmp 2037 $rmp
1833} 2038}
1834 2039
1835sub prepare_random_map { 2040sub prepare_random_map {
1836 my ($exit) = @_; 2041 my ($exit) = @_;
2042
2043 my $guard = cf::lock_acquire "exit_prepare:$exit";
1837 2044
1838 # all this does is basically replace the /! path by 2045 # all this does is basically replace the /! path by
1839 # a new random map path (?random/...) with a seed 2046 # a new random map path (?random/...) with a seed
1840 # that depends on the exit object 2047 # that depends on the exit object
1841 2048
1842 my $rmp = parse_random_map_params $exit->msg; 2049 my $rmp = parse_random_map_params $exit->msg;
1843 2050
1844 if ($exit->map) { 2051 if ($exit->map) {
1845 $rmp->{region} = $exit->map->region_name; 2052 $rmp->{region} = $exit->region->name;
1846 $rmp->{origin_map} = $exit->map->path; 2053 $rmp->{origin_map} = $exit->map->path;
1847 $rmp->{origin_x} = $exit->x; 2054 $rmp->{origin_x} = $exit->x;
1848 $rmp->{origin_y} = $exit->y; 2055 $rmp->{origin_y} = $exit->y;
1849 } 2056 }
1850 2057
1851 $rmp->{random_seed} ||= $exit->random_seed; 2058 $rmp->{random_seed} ||= $exit->random_seed;
1852 2059
1853 my $data = cf::to_json $rmp; 2060 my $data = cf::to_json $rmp;
1854 my $md5 = Digest::MD5::md5_hex $data; 2061 my $md5 = Digest::MD5::md5_hex $data;
2062 my $meta = "$RANDOMDIR/$md5.meta";
1855 2063
1856 if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) { 2064 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1857 aio_write $fh, 0, (length $data), $data, 0; 2065 aio_write $fh, 0, (length $data), $data, 0;
2066 undef $fh;
2067 aio_rename "$meta~", $meta;
1858 2068
1859 $exit->slaying ("?random/$md5"); 2069 $exit->slaying ("?random/$md5");
1860 $exit->msg (undef); 2070 $exit->msg (undef);
1861 } 2071 }
1862} 2072}
1863 2073
1864sub cf::object::player::enter_exit { 2074sub cf::object::player::enter_exit {
1865 my ($self, $exit) = @_; 2075 my ($self, $exit) = @_;
1866 2076
1867 return unless $self->type == cf::PLAYER; 2077 return unless $self->type == cf::PLAYER;
2078
2079 if ($exit->slaying eq "/!") {
2080 #TODO: this should de-fi-ni-te-ly not be a sync-job
2081 # the problem is that $exit might not survive long enough
2082 # so it needs to be done right now, right here
2083 cf::sync_job { prepare_random_map $exit };
2084 }
2085
2086 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2087 my $hp = $exit->stats->hp;
2088 my $sp = $exit->stats->sp;
1868 2089
1869 $self->enter_link; 2090 $self->enter_link;
1870 2091
1871 (async { 2092 (async {
1872 $self->deactivate_recursive; # just to be sure 2093 $self->deactivate_recursive; # just to be sure
1873 unless (eval { 2094 unless (eval {
1874 prepare_random_map $exit 2095 $self->goto ($slaying, $hp, $sp);
1875 if $exit->slaying eq "/!";
1876
1877 my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1878 $self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1879 2096
1880 1; 2097 1;
1881 }) { 2098 }) {
1882 $self->message ("Something went wrong deep within the crossfire server. " 2099 $self->message ("Something went wrong deep within the crossfire server. "
1883 . "I'll try to bring you back to the map you were before. " 2100 . "I'll try to bring you back to the map you were before. "
1884 . "Please report this to the dungeon master!", 2101 . "Please report this to the dungeon master!",
1885 cf::NDI_UNIQUE | cf::NDI_RED); 2102 cf::NDI_UNIQUE | cf::NDI_RED);
1886 2103
1887 warn "ERROR in enter_exit: $@"; 2104 warn "ERROR in enter_exit: $@";
1888 $self->leave_link; 2105 $self->leave_link;
1889 } 2106 }
1890 })->prio (1); 2107 })->prio (1);
1903 2120
1904sub cf::client::send_drawinfo { 2121sub cf::client::send_drawinfo {
1905 my ($self, $text, $flags) = @_; 2122 my ($self, $text, $flags) = @_;
1906 2123
1907 utf8::encode $text; 2124 utf8::encode $text;
1908 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2125 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1909} 2126}
1910 2127
2128=item $client->ext_event ($type, %msg)
2129
2130Sends an exti event to the client.
2131
2132=cut
2133
2134sub cf::client::ext_event($$%) {
2135 my ($self, $type, %msg) = @_;
2136
2137 $msg{msgtype} = "event_$type";
2138 $self->send_packet ("ext " . cf::to_json \%msg);
2139}
1911 2140
1912=item $success = $client->query ($flags, "text", \&cb) 2141=item $success = $client->query ($flags, "text", \&cb)
1913 2142
1914Queues a query to the client, calling the given callback with 2143Queues a query to the client, calling the given callback with
1915the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2144the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1944 # get handled first 2173 # get handled first
1945 my $queue = delete $ns->{query_queue} 2174 my $queue = delete $ns->{query_queue}
1946 or return; # be conservative, not sure how that can happen, but we saw a crash here 2175 or return; # be conservative, not sure how that can happen, but we saw a crash here
1947 2176
1948 (shift @$queue)->[1]->($msg); 2177 (shift @$queue)->[1]->($msg);
2178 return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1949 2179
1950 push @{ $ns->{query_queue} }, @$queue; 2180 push @{ $ns->{query_queue} }, @$queue;
1951 2181
1952 if (@{ $ns->{query_queue} } == @$queue) { 2182 if (@{ $ns->{query_queue} } == @$queue) {
1953 if (@$queue) { 2183 if (@$queue) {
2011 2241
2012# here we export the classes and methods available to script code 2242# here we export the classes and methods available to script code
2013 2243
2014=pod 2244=pod
2015 2245
2016The following fucntions and emthods are available within a safe environment: 2246The following functions and methods are available within a safe environment:
2017 2247
2018 cf::object contr pay_amount pay_player map 2248 cf::object contr pay_amount pay_player map
2019 cf::object::player player 2249 cf::object::player player
2020 cf::player peaceful 2250 cf::player peaceful
2021 cf::map trigger 2251 cf::map trigger
2106############################################################################# 2336#############################################################################
2107 2337
2108=head2 EXTENSION DATABASE SUPPORT 2338=head2 EXTENSION DATABASE SUPPORT
2109 2339
2110Crossfire maintains a very simple database for extension use. It can 2340Crossfire maintains a very simple database for extension use. It can
2111currently store anything that can be serialised using Storable, which 2341currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2112excludes objects. 2342convert to/from binary).
2113 2343
2114The parameter C<$family> should best start with the name of the extension 2344The parameter C<$family> should best start with the name of the extension
2115using it, it should be unique. 2345using it, it should be unique.
2116 2346
2117=over 4 2347=over 4
2118 2348
2119=item $hashref = cf::db_get $family
2120
2121Return a hashref for use by the extension C<$family>, which can be
2122modified. After modifications, you have to call C<cf::db_dirty> or
2123C<cf::db_sync>.
2124
2125=item $value = cf::db_get $family => $key 2349=item $value = cf::db_get $family => $key
2126 2350
2127Returns a single value from the database 2351Returns a single value from the database.
2128
2129=item cf::db_put $family => $hashref
2130
2131Stores the given family hashref into the database. Updates are delayed, if
2132you want the data to be synced to disk immediately, use C<cf::db_sync>.
2133 2352
2134=item cf::db_put $family => $key => $value 2353=item cf::db_put $family => $key => $value
2135 2354
2136Stores the given C<$value> in the family hash. Updates are delayed, if you 2355Stores the given C<$value> in the family.
2137want the data to be synced to disk immediately, use C<cf::db_sync>.
2138
2139=item cf::db_dirty
2140
2141Marks the database as dirty, to be updated at a later time.
2142
2143=item cf::db_sync
2144
2145Immediately write the database to disk I<if it is dirty>.
2146 2356
2147=cut 2357=cut
2148 2358
2149our $DB; 2359our $DB;
2150 2360
2151{ 2361sub db_init {
2152 my $path = cf::localdir . "/database.pst"; 2362 unless ($DB) {
2363 $DB = BDB::db_create $DB_ENV;
2153 2364
2154 sub db_load() { 2365 cf::sync_job {
2155 $DB = stat $path ? Storable::retrieve $path : { }; 2366 eval {
2156 } 2367 $DB->set_flags (BDB::CHKSUM);
2157 2368
2158 my $pid; 2369 BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2159 2370 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2160 sub db_save() { 2371 cf::cleanup "db_open(db): $!" if $!;
2161 waitpid $pid, 0 if $pid; 2372 };
2162 if (0 == ($pid = fork)) { 2373 cf::cleanup "db_open(db): $@" if $@;
2163 $DB->{_meta}{version} = 1;
2164 Storable::nstore $DB, "$path~";
2165 rename "$path~", $path;
2166 cf::_exit 0 if defined $pid;
2167 } 2374 };
2168 }
2169
2170 my $dirty;
2171
2172 sub db_sync() {
2173 db_save if $dirty;
2174 undef $dirty;
2175 }
2176
2177 my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2178 db_sync;
2179 }); 2375 }
2376}
2180 2377
2181 sub db_dirty() {
2182 $dirty = 1;
2183 $idle->start;
2184 }
2185
2186 sub db_get($;$) { 2378sub db_get($$) {
2187 @_ >= 2 2379 my $key = "$_[0]/$_[1]";
2188 ? $DB->{$_[0]}{$_[1]}
2189 : ($DB->{$_[0]} ||= { })
2190 }
2191 2380
2381 cf::sync_job {
2382 BDB::db_get $DB, undef, $key, my $data;
2383
2384 $! ? ()
2385 : $data
2386 }
2387}
2388
2192 sub db_put($$;$) { 2389sub db_put($$$) {
2193 if (@_ >= 3) { 2390 BDB::dbreq_pri 4;
2194 $DB->{$_[0]}{$_[1]} = $_[2]; 2391 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2195 } else { 2392}
2196 $DB->{$_[0]} = $_[1];
2197 }
2198 db_dirty;
2199 }
2200 2393
2201 cf::global->attach ( 2394=item cf::cache $id => [$paths...], $processversion => $process
2202 prio => 10000, 2395
2203 on_cleanup => sub { 2396Generic caching function that returns the value of the resource $id,
2204 db_sync; 2397caching and regenerating as required.
2398
2399This function can block.
2400
2401=cut
2402
2403sub cache {
2404 my ($id, $src, $processversion, $process) = @_;
2405
2406 my $meta =
2407 join "\x00",
2408 $processversion,
2409 map {
2410 aio_stat $_
2411 and Carp::croak "$_: $!";
2412
2413 ($_, (stat _)[7,9])
2414 } @$src;
2415
2416 my $dbmeta = db_get cache => "$id/meta";
2417 if ($dbmeta ne $meta) {
2418 # changed, we may need to process
2419
2420 my @data;
2421 my $md5;
2422
2423 for (0 .. $#$src) {
2424 0 <= aio_load $src->[$_], $data[$_]
2425 or Carp::croak "$src->[$_]: $!";
2205 }, 2426 }
2206 ); 2427
2428 # if processing is expensive, check
2429 # checksum first
2430 if (1) {
2431 $md5 =
2432 join "\x00",
2433 $processversion,
2434 map {
2435 Coro::cede;
2436 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2437 } 0.. $#$src;
2438
2439
2440 my $dbmd5 = db_get cache => "$id/md5";
2441 if ($dbmd5 eq $md5) {
2442 db_put cache => "$id/meta", $meta;
2443
2444 return db_get cache => "$id/data";
2445 }
2446 }
2447
2448 my $t1 = Time::HiRes::time;
2449 my $data = $process->(\@data);
2450 my $t2 = Time::HiRes::time;
2451
2452 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2453
2454 db_put cache => "$id/data", $data;
2455 db_put cache => "$id/md5" , $md5;
2456 db_put cache => "$id/meta", $meta;
2457
2458 return $data;
2459 }
2460
2461 db_get cache => "$id/data"
2207} 2462}
2463
2464=item fork_call { }, $args
2465
2466Executes the given code block with the given arguments in a seperate
2467process, returning the results. Everything must be serialisable with
2468Coro::Storable. May, of course, block. Note that the executed sub may
2469never block itself or use any form of Event handling.
2470
2471=cut
2472
2473sub fork_call(&@) {
2474 my ($cb, @args) = @_;
2475
2476# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2477# or die "socketpair: $!";
2478 pipe my $fh1, my $fh2
2479 or die "pipe: $!";
2480
2481 if (my $pid = fork) {
2482 close $fh2;
2483
2484 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2485 $res = Coro::Storable::thaw $res;
2486
2487 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2488
2489 die $$res unless "ARRAY" eq ref $res;
2490
2491 return wantarray ? @$res : $res->[-1];
2492 } else {
2493 reset_signals;
2494 local $SIG{__WARN__};
2495 local $SIG{__DIE__};
2496 eval {
2497 close $fh1;
2498
2499 my @res = eval { $cb->(@args) };
2500 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2501 };
2502
2503 warn $@ if $@;
2504 _exit 0;
2505 }
2506}
2507
2508
2208 2509
2209############################################################################# 2510#############################################################################
2210# the server's main() 2511# the server's init and main functions
2512
2513sub load_facedata($) {
2514 my ($path) = @_;
2515
2516 warn "loading facedata from $path\n";
2517
2518 my $facedata;
2519 0 < aio_load $path, $facedata
2520 or die "$path: $!";
2521
2522 $facedata = Coro::Storable::thaw $facedata;
2523
2524 $facedata->{version} == 2
2525 or cf::cleanup "$path: version mismatch, cannot proceed.";
2526
2527 {
2528 my $faces = $facedata->{faceinfo};
2529
2530 while (my ($face, $info) = each %$faces) {
2531 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2532 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2533 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2534 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2535 Coro::cede;
2536 }
2537
2538 while (my ($face, $info) = each %$faces) {
2539 next unless $info->{smooth};
2540 my $idx = cf::face::find $face
2541 or next;
2542 if (my $smooth = cf::face::find $info->{smooth}) {
2543 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2544 } else {
2545 warn "smooth face '$info->{smooth}' not found for face '$face'";
2546 }
2547 Coro::cede;
2548 }
2549 }
2550
2551 {
2552 my $anims = $facedata->{animinfo};
2553
2554 while (my ($anim, $info) = each %$anims) {
2555 cf::anim::set $anim, $info->{frames}, $info->{facings};
2556 Coro::cede;
2557 }
2558
2559 cf::anim::invalidate_all; # d'oh
2560 }
2561
2562 1
2563}
2564
2565sub reload_regions {
2566 load_resource_file "$MAPDIR/regions"
2567 or die "unable to load regions file\n";
2568}
2569
2570sub reload_facedata {
2571 load_facedata "$DATADIR/facedata"
2572 or die "unable to load facedata\n";
2573}
2574
2575sub reload_archetypes {
2576 load_resource_file "$DATADIR/archetypes"
2577 or die "unable to load archetypes\n";
2578}
2579
2580sub reload_treasures {
2581 load_resource_file "$DATADIR/treasures"
2582 or die "unable to load treasurelists\n";
2583}
2584
2585sub reload_resources {
2586 warn "reloading resource files...\n";
2587
2588 reload_regions;
2589 reload_facedata;
2590 reload_archetypes;
2591 reload_treasures;
2592
2593 warn "finished reloading resource files\n";
2594}
2595
2596sub init {
2597 reload_resources;
2598}
2211 2599
2212sub cfg_load { 2600sub cfg_load {
2213 open my $fh, "<:utf8", cf::confdir . "/config" 2601 open my $fh, "<:utf8", "$CONFDIR/config"
2214 or return; 2602 or return;
2215 2603
2216 local $/; 2604 local $/;
2217 *CFG = YAML::Syck::Load <$fh>; 2605 *CFG = YAML::Syck::Load <$fh>;
2218 2606
2232 2620
2233sub main { 2621sub main {
2234 # we must not ever block the main coroutine 2622 # we must not ever block the main coroutine
2235 local $Coro::idle = sub { 2623 local $Coro::idle = sub {
2236 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 2624 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2625 (async {
2237 async { Event::one_event }; 2626 Event::one_event;
2627 })->prio (Coro::PRIO_MAX);
2238 }; 2628 };
2239 2629
2240 cfg_load; 2630 cfg_load;
2241 db_load; 2631 db_init;
2242 load_extensions; 2632 load_extensions;
2633
2634 $TICK_WATCHER->start;
2243 Event::loop; 2635 Event::loop;
2244} 2636}
2245 2637
2246############################################################################# 2638#############################################################################
2247# initialisation and cleanup 2639# initialisation and cleanup
2248 2640
2249# install some emergency cleanup handlers 2641# install some emergency cleanup handlers
2250BEGIN { 2642BEGIN {
2251 for my $signal (qw(INT HUP TERM)) { 2643 for my $signal (qw(INT HUP TERM)) {
2252 Event->signal ( 2644 Event->signal (
2645 reentrant => 0,
2253 data => WF_AUTOCANCEL, 2646 data => WF_AUTOCANCEL,
2254 signal => $signal, 2647 signal => $signal,
2648 prio => 0,
2255 cb => sub { 2649 cb => sub {
2256 cf::cleanup "SIG$signal"; 2650 cf::cleanup "SIG$signal";
2257 }, 2651 },
2258 ); 2652 );
2259 } 2653 }
2260} 2654}
2281 my $map = $cf::MAP{$path} or next; 2675 my $map = $cf::MAP{$path} or next;
2282 $map->valid or next; 2676 $map->valid or next;
2283 $map->save; 2677 $map->save;
2284 } 2678 }
2285 warn "end emergency map save\n"; 2679 warn "end emergency map save\n";
2680
2681 warn "begin emergency database checkpoint\n";
2682 BDB::db_env_txn_checkpoint $DB_ENV;
2683 warn "end emergency database checkpoint\n";
2286 }; 2684 };
2287 2685
2288 warn "leave emergency perl save\n"; 2686 warn "leave emergency perl save\n";
2289} 2687}
2290 2688
2689sub post_cleanup {
2690 my ($make_core) = @_;
2691
2692 warn Carp::longmess "post_cleanup backtrace"
2693 if $make_core;
2694}
2695
2291sub reload() { 2696sub do_reload_perl() {
2292 # can/must only be called in main 2697 # can/must only be called in main
2293 if ($Coro::current != $Coro::main) { 2698 if ($Coro::current != $Coro::main) {
2294 warn "can only reload from main coroutine\n"; 2699 warn "can only reload from main coroutine";
2295 return; 2700 return;
2296 } 2701 }
2297 2702
2298 warn "reloading..."; 2703 warn "reloading...";
2299 2704
2300 warn "freezing server"; 2705 warn "entering sync_job";
2301 my $guard = freeze_mainloop; 2706
2707 cf::sync_job {
2708 cf::write_runtime; # external watchdog should not bark
2302 cf::emergency_save; 2709 cf::emergency_save;
2710 cf::write_runtime; # external watchdog should not bark
2303 2711
2304 warn "sync database to disk"; 2712 warn "syncing database to disk";
2305 cf::db_sync; 2713 BDB::db_env_txn_checkpoint $DB_ENV;
2306 IO::AIO::flush;
2307 2714
2308 eval {
2309 # if anything goes wrong in here, we should simply crash as we already saved 2715 # if anything goes wrong in here, we should simply crash as we already saved
2310 2716
2311 warn "cancel all watchers"; 2717 warn "cancelling all WF_AUTOCANCEL watchers";
2312 for (Event::all_watchers) { 2718 for (Event::all_watchers) {
2313 $_->cancel if $_->data & WF_AUTOCANCEL; 2719 $_->cancel if $_->data & WF_AUTOCANCEL;
2314 } 2720 }
2315 2721
2722 warn "flushing outstanding aio requests";
2723 for (;;) {
2724 BDB::flush;
2725 IO::AIO::flush;
2726 Coro::cede;
2727 last unless IO::AIO::nreqs || BDB::nreqs;
2728 warn "iterate...";
2729 }
2730
2731 ++$RELOAD;
2732
2316 warn "cancel all extension coros"; 2733 warn "cancelling all extension coros";
2317 $_->cancel for values %EXT_CORO; 2734 $_->cancel for values %EXT_CORO;
2318 %EXT_CORO = (); 2735 %EXT_CORO = ();
2319 2736
2320 warn "remove commands"; 2737 warn "removing commands";
2321 %COMMAND = (); 2738 %COMMAND = ();
2322 2739
2323 warn "remove ext commands"; 2740 warn "removing ext commands";
2324 %EXTCMD = (); 2741 %EXTCMD = ();
2325 2742
2326 warn "unload/nuke all extensions"; 2743 warn "unloading/nuking all extensions";
2327 for my $pkg (@EXTS) { 2744 for my $pkg (@EXTS) {
2328 warn "... unloading $pkg"; 2745 warn "... unloading $pkg";
2329 2746
2330 if (my $cb = $pkg->can ("unload")) { 2747 if (my $cb = $pkg->can ("unload")) {
2331 eval { 2748 eval {
2336 2753
2337 warn "... nuking $pkg"; 2754 warn "... nuking $pkg";
2338 Symbol::delete_package $pkg; 2755 Symbol::delete_package $pkg;
2339 } 2756 }
2340 2757
2341 warn "unload all perl modules loaded from $LIBDIR"; 2758 warn "unloading all perl modules loaded from $LIBDIR";
2342 while (my ($k, $v) = each %INC) { 2759 while (my ($k, $v) = each %INC) {
2343 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; 2760 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2344 2761
2345 warn "removing <$k>"; 2762 warn "... unloading $k";
2346 delete $INC{$k}; 2763 delete $INC{$k};
2347 2764
2348 $k =~ s/\.pm$//; 2765 $k =~ s/\.pm$//;
2349 $k =~ s/\//::/g; 2766 $k =~ s/\//::/g;
2350 2767
2353 } 2770 }
2354 2771
2355 Symbol::delete_package $k; 2772 Symbol::delete_package $k;
2356 } 2773 }
2357 2774
2358 warn "get rid of safe::, as good as possible"; 2775 warn "getting rid of safe::, as good as possible";
2359 Symbol::delete_package "safe::$_" 2776 Symbol::delete_package "safe::$_"
2360 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2777 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2361 2778
2362 warn "unload cf.pm \"a bit\""; 2779 warn "unloading cf.pm \"a bit\"";
2363 delete $INC{"cf.pm"}; 2780 delete $INC{"cf.pm"};
2781 delete $INC{"cf/pod.pm"};
2364 2782
2365 # don't, removes xs symbols, too, 2783 # don't, removes xs symbols, too,
2366 # and global variables created in xs 2784 # and global variables created in xs
2367 #Symbol::delete_package __PACKAGE__; 2785 #Symbol::delete_package __PACKAGE__;
2368 2786
2787 warn "unload completed, starting to reload now";
2788
2369 warn "reloading cf.pm"; 2789 warn "reloading cf.pm";
2370 require cf; 2790 require cf;
2371 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 2791 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2372 2792
2373 warn "load config and database again"; 2793 warn "loading config and database again";
2374 cf::cfg_load; 2794 cf::cfg_load;
2375 cf::db_load;
2376 2795
2377 warn "load extensions"; 2796 warn "loading extensions";
2378 cf::load_extensions; 2797 cf::load_extensions;
2379 2798
2380 warn "reattach attachments to objects/players"; 2799 warn "reattaching attachments to objects/players";
2381 _global_reattach; 2800 _global_reattach; # objects, sockets
2382 warn "reattach attachments to maps"; 2801 warn "reattaching attachments to maps";
2383 reattach $_ for values %MAP; 2802 reattach $_ for values %MAP;
2384 }; 2803 warn "reattaching attachments to players";
2804 reattach $_ for values %PLAYER;
2385 2805
2386 if ($@) { 2806 warn "leaving sync_job";
2807
2808 1
2809 } or do {
2387 warn $@; 2810 warn $@;
2388 warn "error while reloading, exiting."; 2811 warn "error while reloading, exiting.";
2389 exit 1; 2812 exit 1;
2390 } 2813 };
2391 2814
2392 warn "reloaded"; 2815 warn "reloaded";
2393}; 2816};
2394 2817
2818our $RELOAD_WATCHER; # used only during reload
2819
2820sub reload_perl() {
2821 # doing reload synchronously and two reloads happen back-to-back,
2822 # coro crashes during coro_state_free->destroy here.
2823
2824 $RELOAD_WATCHER ||= Event->timer (
2825 reentrant => 0,
2826 after => 0,
2827 data => WF_AUTOCANCEL,
2828 cb => sub {
2829 do_reload_perl;
2830 undef $RELOAD_WATCHER;
2831 },
2832 );
2833}
2834
2395register_command "reload" => sub { 2835register_command "reload" => sub {
2396 my ($who, $arg) = @_; 2836 my ($who, $arg) = @_;
2397 2837
2398 if ($who->flag (FLAG_WIZ)) { 2838 if ($who->flag (FLAG_WIZ)) {
2399 $who->message ("start of reload.");
2400 reload;
2401 $who->message ("end of reload."); 2839 $who->message ("reloading server.");
2840 async { reload_perl };
2402 } 2841 }
2403}; 2842};
2404 2843
2405unshift @INC, $LIBDIR; 2844unshift @INC, $LIBDIR;
2406 2845
2846my $bug_warning = 0;
2847
2848our @WAIT_FOR_TICK;
2849our @WAIT_FOR_TICK_BEGIN;
2850
2851sub wait_for_tick {
2852 return unless $TICK_WATCHER->is_active;
2853 return if $Coro::current == $Coro::main;
2854
2855 my $signal = new Coro::Signal;
2856 push @WAIT_FOR_TICK, $signal;
2857 $signal->wait;
2858}
2859
2860sub wait_for_tick_begin {
2861 return unless $TICK_WATCHER->is_active;
2862 return if $Coro::current == $Coro::main;
2863
2864 my $signal = new Coro::Signal;
2865 push @WAIT_FOR_TICK_BEGIN, $signal;
2866 $signal->wait;
2867}
2868
2869 my $min = 1e6;#d#
2870 my $avg = 10;
2407$TICK_WATCHER = Event->timer ( 2871$TICK_WATCHER = Event->timer (
2408 reentrant => 0, 2872 reentrant => 0,
2873 parked => 1,
2409 prio => 0, 2874 prio => 0,
2410 at => $NEXT_TICK || $TICK, 2875 at => $NEXT_TICK || $TICK,
2411 data => WF_AUTOCANCEL, 2876 data => WF_AUTOCANCEL,
2412 cb => sub { 2877 cb => sub {
2878 if ($Coro::current != $Coro::main) {
2879 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2880 unless ++$bug_warning > 10;
2881 return;
2882 }
2883
2413 $NOW = Event::time; 2884 $NOW = $tick_start = Event::time;
2414 2885
2415 cf::server_tick; # one server iteration 2886 cf::server_tick; # one server iteration
2887
2888 0 && sync_job {#d#
2889 for(1..10) {
2890 my $t = Event::time;
2891 my $map = my $map = new_from_path cf::map "/tmp/x.map"
2892 or die;
2893
2894 $map->width (50);
2895 $map->height (50);
2896 $map->alloc;
2897 $map->_load_objects ("/tmp/x.map", 1);
2898 my $t = Event::time - $t;
2899
2900 #next unless $t < 0.0013;#d#
2901 if ($t < $min) {
2902 $min = $t;
2903 }
2904 $avg = $avg * 0.99 + $t * 0.01;
2905 }
2906 warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2907 exit 0;
2908 # 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2909 };
2910
2416 $RUNTIME += $TICK; 2911 $RUNTIME += $TICK;
2417 $NEXT_TICK += $TICK; 2912 $NEXT_TICK += $TICK;
2418 2913
2419 $WAIT_FOR_TICK->broadcast; 2914 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2420 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited; 2915 $NEXT_RUNTIME_WRITE = $NOW + 10;
2916 Coro::async_pool {
2917 write_runtime
2918 or warn "ERROR: unable to write runtime file: $!";
2919 };
2920 }
2921
2922# my $AFTER = Event::time;
2923# warn $AFTER - $NOW;#d#
2924
2925 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2926 $sig->send;
2927 }
2928 while (my $sig = shift @WAIT_FOR_TICK) {
2929 $sig->send;
2930 }
2931
2932 $NOW = Event::time;
2421 2933
2422 # if we are delayed by four ticks or more, skip them all 2934 # if we are delayed by four ticks or more, skip them all
2423 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2935 $NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2424 2936
2425 $TICK_WATCHER->at ($NEXT_TICK); 2937 $TICK_WATCHER->at ($NEXT_TICK);
2426 $TICK_WATCHER->start; 2938 $TICK_WATCHER->start;
2939
2940 $LOAD = ($NOW - $tick_start) / $TICK;
2941 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2942
2943 _post_tick;
2944
2945
2427 }, 2946 },
2428); 2947);
2429 2948
2949{
2950 BDB::max_poll_time $TICK * 0.1;
2951 $BDB_POLL_WATCHER = Event->io (
2952 reentrant => 0,
2953 fd => BDB::poll_fileno,
2954 poll => 'r',
2955 prio => 0,
2956 data => WF_AUTOCANCEL,
2957 cb => \&BDB::poll_cb,
2958 );
2959 BDB::min_parallel 8;
2960
2961 BDB::set_sync_prepare {
2962 my $status;
2963 my $current = $Coro::current;
2964 (
2965 sub {
2966 $status = $!;
2967 $current->ready; undef $current;
2968 },
2969 sub {
2970 Coro::schedule while defined $current;
2971 $! = $status;
2972 },
2973 )
2974 };
2975
2976 unless ($DB_ENV) {
2977 $DB_ENV = BDB::db_env_create;
2978
2979 cf::sync_job {
2980 eval {
2981 BDB::db_env_open
2982 $DB_ENV,
2983 $BDBDIR,
2984 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2985 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2986 0666;
2987
2988 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2989
2990 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2991 $DB_ENV->set_lk_detect;
2992 };
2993
2994 cf::cleanup "db_env_open(db): $@" if $@;
2995 };
2996 }
2997}
2998
2999{
3000 IO::AIO::min_parallel 8;
3001
3002 undef $Coro::AIO::WATCHER;
2430IO::AIO::max_poll_time $TICK * 0.2; 3003 IO::AIO::max_poll_time $TICK * 0.1;
2431
2432$AIO_POLL_WATCHER = Event->io ( 3004 $AIO_POLL_WATCHER = Event->io (
2433 fd => IO::AIO::poll_fileno, 3005 reentrant => 0,
2434 poll => 'r',
2435 prio => 5,
2436 data => WF_AUTOCANCEL,
2437 cb => \&IO::AIO::poll_cb,
2438);
2439
2440$WRITE_RUNTIME_WATCHER = Event->timer (
2441 data => WF_AUTOCANCEL, 3006 data => WF_AUTOCANCEL,
2442 after => 0, 3007 fd => IO::AIO::poll_fileno,
2443 interval => 10, 3008 poll => 'r',
2444 cb => sub { 3009 prio => 6,
2445 (Coro::unblock_sub { 3010 cb => \&IO::AIO::poll_cb,
2446 write_runtime 3011 );
2447 or warn "ERROR: unable to write runtime file: $!"; 3012}
3013
3014my $_log_backtrace;
3015
3016sub _log_backtrace {
3017 my ($msg, @addr) = @_;
3018
3019 $msg =~ s/\n//;
3020
3021 # limit the # of concurrent backtraces
3022 if ($_log_backtrace < 2) {
3023 ++$_log_backtrace;
3024 async {
3025 my @bt = fork_call {
3026 @addr = map { sprintf "%x", $_ } @addr;
3027 my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3028 open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3029 or die "addr2line: $!";
3030
3031 my @funcs;
3032 my @res = <$fh>;
3033 chomp for @res;
3034 while (@res) {
3035 my ($func, $line) = splice @res, 0, 2, ();
3036 push @funcs, "[$func] $line";
3037 }
3038
3039 @funcs
3040 };
3041
3042 LOG llevInfo, "[ABT] $msg\n";
3043 LOG llevInfo, "[ABT] $_\n" for @bt;
3044 --$_log_backtrace;
2448 })->(); 3045 };
3046 } else {
3047 LOG llevInfo, "[ABT] $msg\n";
3048 LOG llevInfo, "[ABT] [suppressed]\n";
2449 }, 3049 }
2450); 3050}
3051
3052# load additional modules
3053use cf::pod;
2451 3054
2452END { cf::emergency_save } 3055END { cf::emergency_save }
2453 3056
24541 30571
2455 3058

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