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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.443 by root, Sun Aug 31 10:05:26 2008 UTC vs.
Revision 1.460 by root, Mon Dec 15 17:04:53 2008 UTC

… …
32use Opcode; 32use Opcode;
33use Safe; 33use Safe;
34use Safe::Hole; 34use Safe::Hole;
35use Storable (); 35use Storable ();
36 36
37use Guard ();
37use Coro (); 38use Coro ();
38use Coro::State; 39use Coro::State;
39use Coro::Handle; 40use Coro::Handle;
40use Coro::EV; 41use Coro::EV;
41use Coro::AnyEvent; 42use Coro::AnyEvent;
42use Coro::Timer; 43use Coro::Timer;
43use Coro::Signal; 44use Coro::Signal;
44use Coro::Semaphore; 45use Coro::Semaphore;
46use Coro::SemaphoreSet;
45use Coro::AnyEvent; 47use Coro::AnyEvent;
46use Coro::AIO; 48use Coro::AIO;
47use Coro::BDB 1.6; 49use Coro::BDB 1.6;
48use Coro::Storable; 50use Coro::Storable;
49use Coro::Util (); 51use Coro::Util ();
… …
63 65
64# configure various modules to our taste 66# configure various modules to our taste
65# 67#
66$Storable::canonical = 1; # reduce rsync transfers 68$Storable::canonical = 1; # reduce rsync transfers
67Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 69Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
70
71$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
72
73# make sure c-lzf reinitialises itself
74Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
68Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 75Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
69
70$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
71 76
72sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 77sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
73 78
74our %COMMAND = (); 79our %COMMAND = ();
75our %COMMAND_TIME = (); 80our %COMMAND_TIME = ();
… …
78our %EXTCMD = (); 83our %EXTCMD = ();
79our %EXTICMD = (); 84our %EXTICMD = ();
80our %EXT_CORO = (); # coroutines bound to extensions 85our %EXT_CORO = (); # coroutines bound to extensions
81our %EXT_MAP = (); # pluggable maps 86our %EXT_MAP = (); # pluggable maps
82 87
83our $RELOAD; # number of reloads so far 88our $RELOAD; # number of reloads so far, non-zero while in reload
84our @EVENT; 89our @EVENT;
85 90
86our $CONFDIR = confdir; 91our $CONFDIR = confdir;
87our $DATADIR = datadir; 92our $DATADIR = datadir;
88our $LIBDIR = "$DATADIR/ext"; 93our $LIBDIR = "$DATADIR/ext";
89our $PODDIR = "$DATADIR/pod"; 94our $PODDIR = "$DATADIR/pod";
90our $MAPDIR = "$DATADIR/" . mapdir; 95our $MAPDIR = "$DATADIR/" . mapdir;
91our $LOCALDIR = localdir; 96our $LOCALDIR = localdir;
92our $TMPDIR = "$LOCALDIR/" . tmpdir; 97our $TMPDIR = "$LOCALDIR/" . tmpdir;
93our $UNIQUEDIR = "$LOCALDIR/" . uniquedir; 98our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
94our $PLAYERDIR = "$LOCALDIR/" . playerdir; 99our $PLAYERDIR = "$LOCALDIR/" . playerdir;
95our $RANDOMDIR = "$LOCALDIR/random"; 100our $RANDOMDIR = "$LOCALDIR/random";
96our $BDBDIR = "$LOCALDIR/db"; 101our $BDBDIR = "$LOCALDIR/db";
102our $PIDFILE = "$LOCALDIR/pid";
103our $RUNTIMEFILE = "$LOCALDIR/runtime";
104
97our %RESOURCE; 105our %RESOURCE;
98 106
99our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 107our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
100our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 108our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
101our $NEXT_TICK; 109our $NEXT_TICK;
… …
122our $LOAD; # a number between 0 (idle) and 1 (too many objects) 130our $LOAD; # a number between 0 (idle) and 1 (too many objects)
123our $LOADAVG; # same thing, but with alpha-smoothing 131our $LOADAVG; # same thing, but with alpha-smoothing
124our $JITTER; # average jitter 132our $JITTER; # average jitter
125our $TICK_START; # for load detecting purposes 133our $TICK_START; # for load detecting purposes
126 134
135our @POST_INIT;
136
137our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
138
127binmode STDOUT; 139binmode STDOUT;
128binmode STDERR; 140binmode STDERR;
129 141
130# read virtual server time, if available 142# read virtual server time, if available
131unless ($RUNTIME || !-e "$LOCALDIR/runtime") { 143unless ($RUNTIME || !-e $RUNTIMEFILE) {
132 open my $fh, "<", "$LOCALDIR/runtime" 144 open my $fh, "<", $RUNTIMEFILE
133 or die "unable to read runtime file: $!"; 145 or die "unable to read $RUNTIMEFILE file: $!";
134 $RUNTIME = <$fh> + 0.; 146 $RUNTIME = <$fh> + 0.;
135} 147}
136 148
137mkdir $_ 149mkdir $_
138 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR; 150 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
… …
299our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max 311our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
300 312
301sub encode_json($) { $json_coder->encode ($_[0]) } 313sub encode_json($) { $json_coder->encode ($_[0]) }
302sub decode_json($) { $json_coder->decode ($_[0]) } 314sub decode_json($) { $json_coder->decode ($_[0]) }
303 315
316=item cf::post_init { BLOCK }
317
318Execute the given codeblock, I<after> all extensions have been (re-)loaded,
319but I<before> the server starts ticking again.
320
321The cdoeblock will have a single boolean argument to indicate whether this
322is a reload or not.
323
324=cut
325
326sub post_init(&) {
327 push @POST_INIT, shift;
328}
329
304=item cf::lock_wait $string 330=item cf::lock_wait $string
305 331
306Wait until the given lock is available. See cf::lock_acquire. 332Wait until the given lock is available. See cf::lock_acquire.
307 333
308=item my $lock = cf::lock_acquire $string 334=item my $lock = cf::lock_acquire $string
309 335
310Wait until the given lock is available and then acquires it and returns 336Wait until the given lock is available and then acquires it and returns
311a Coro::guard object. If the guard object gets destroyed (goes out of scope, 337a L<Guard> object. If the guard object gets destroyed (goes out of scope,
312for example when the coroutine gets canceled), the lock is automatically 338for example when the coroutine gets canceled), the lock is automatically
313returned. 339returned.
314 340
315Locks are *not* recursive, locking from the same coro twice results in a 341Locks are *not* recursive, locking from the same coro twice results in a
316deadlocked coro. 342deadlocked coro.
… …
322 348
323Return true if the lock is currently active, i.e. somebody has locked it. 349Return true if the lock is currently active, i.e. somebody has locked it.
324 350
325=cut 351=cut
326 352
327our %LOCK; 353our $LOCKS = new Coro::SemaphoreSet;
328our %LOCKER;#d#
329 354
330sub lock_wait($) { 355sub lock_wait($) {
331 my ($key) = @_; 356 $LOCKS->wait ($_[0]);
332
333 if ($LOCKER{$key} == $Coro::current) {#d#
334 Carp::cluck "lock_wait($key) for already-acquired lock";#d#
335 return;#d#
336 }#d#
337
338 # wait for lock, if any
339 while ($LOCK{$key}) {
340 push @{ $LOCK{$key} }, $Coro::current;
341 Coro::schedule;
342 }
343} 357}
344 358
345sub lock_acquire($) { 359sub lock_acquire($) {
346 my ($key) = @_; 360 $LOCKS->guard ($_[0])
347
348 # wait, to be sure we are not locked
349 lock_wait $key;
350
351 $LOCK{$key} = [];
352 $LOCKER{$key} = $Coro::current;#d#
353
354 Coro::guard {
355 delete $LOCKER{$key};#d#
356 # wake up all waiters, to be on the safe side
357 $_->ready for @{ delete $LOCK{$key} };
358 }
359} 361}
360 362
361sub lock_active($) { 363sub lock_active($) {
362 my ($key) = @_; 364 $LOCKS->count ($_[0]) < 1
363
364 ! ! $LOCK{$key}
365} 365}
366 366
367sub freeze_mainloop { 367sub freeze_mainloop {
368 tick_inhibit_inc; 368 tick_inhibit_inc;
369 369
370 Coro::guard \&tick_inhibit_dec; 370 &Guard::guard (\&tick_inhibit_dec);
371} 371}
372 372
373=item cf::periodic $interval, $cb 373=item cf::periodic $interval, $cb
374 374
375Like EV::periodic, but randomly selects a starting point so that the actions 375Like EV::periodic, but randomly selects a starting point so that the actions
… …
727 727
728############################################################################# 728#############################################################################
729 729
730=head2 ATTACHABLE OBJECTS 730=head2 ATTACHABLE OBJECTS
731 731
732Many objects in crossfire are so-called attachable objects. That means you can 732Many objects in deliantra are so-called attachable objects. That means you can
733attach callbacks/event handlers (a collection of which is called an "attachment") 733attach callbacks/event handlers (a collection of which is called an "attachment")
734to it. All such attachable objects support the following methods. 734to it. All such attachable objects support the following methods.
735 735
736In the following description, CLASS can be any of C<global>, C<object> 736In the following description, CLASS can be any of C<global>, C<object>
737C<player>, C<client> or C<map> (i.e. the attachable objects in 737C<player>, C<client> or C<map> (i.e. the attachable objects in
… …
787=item cf::CLASS::attachment $name, ... 787=item cf::CLASS::attachment $name, ...
788 788
789Register an attachment by C<$name> through which attachable objects of the 789Register an attachment by C<$name> through which attachable objects of the
790given CLASS can refer to this attachment. 790given CLASS can refer to this attachment.
791 791
792Some classes such as crossfire maps and objects can specify attachments 792Some classes such as deliantra maps and objects can specify attachments
793that are attached at load/instantiate time, thus the need for a name. 793that are attached at load/instantiate time, thus the need for a name.
794 794
795These calls expect any number of the following handler/hook descriptions: 795These calls expect any number of the following handler/hook descriptions:
796 796
797=over 4 797=over 4
… …
1164 } else { 1164 } else {
1165 aio_unlink "$filename.pst"; 1165 aio_unlink "$filename.pst";
1166 } 1166 }
1167 1167
1168 aio_rename "$filename~", $filename; 1168 aio_rename "$filename~", $filename;
1169
1170 $filename =~ s%/[^/]+$%%;
1171 aio_pathsync $filename if $cf::USE_FSYNC;
1169 } else { 1172 } else {
1170 warn "FATAL: $filename~: $!\n"; 1173 warn "unable to save objects: $filename~: $!\n";
1171 } 1174 }
1172 } else { 1175 } else {
1173 aio_unlink $filename; 1176 aio_unlink $filename;
1174 aio_unlink "$filename.pst"; 1177 aio_unlink "$filename.pst";
1175 } 1178 }
… …
1266 my ($name, $cb) = @_; 1269 my ($name, $cb) = @_;
1267 1270
1268 $EXTICMD{$name} = $cb; 1271 $EXTICMD{$name} = $cb;
1269} 1272}
1270 1273
1274use File::Glob ();
1275
1271cf::player->attach ( 1276cf::player->attach (
1272 on_command => sub { 1277 on_command => sub {
1273 my ($pl, $name, $params) = @_; 1278 my ($pl, $name, $params) = @_;
1274 1279
1275 my $cb = $COMMAND{$name} 1280 my $cb = $COMMAND{$name}
… …
1306 } 1311 }
1307 1312
1308 cf::override; 1313 cf::override;
1309 }, 1314 },
1310); 1315);
1316
1317# "readahead" all extensions
1318sub cache_extensions {
1319 my $grp = IO::AIO::aio_group;
1320
1321 add $grp IO::AIO::aio_readdir $LIBDIR, sub {
1322 for (grep /\.ext$/, @{$_[0]}) {
1323 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1324 }
1325 };
1326
1327 $grp
1328}
1311 1329
1312sub load_extensions { 1330sub load_extensions {
1313 cf::sync_job { 1331 cf::sync_job {
1314 my %todo; 1332 my %todo;
1315 1333
… …
1385 1403
1386=back 1404=back
1387 1405
1388=head2 CORE EXTENSIONS 1406=head2 CORE EXTENSIONS
1389 1407
1390Functions and methods that extend core crossfire objects. 1408Functions and methods that extend core deliantra objects.
1391 1409
1392=cut 1410=cut
1393 1411
1394package cf::player; 1412package cf::player;
1395 1413
… …
1438 1456
1439sub exists($) { 1457sub exists($) {
1440 my ($login) = @_; 1458 my ($login) = @_;
1441 1459
1442 $cf::PLAYER{$login} 1460 $cf::PLAYER{$login}
1443 or cf::sync_job { !aio_stat path $login } 1461 or !aio_stat path $login
1444} 1462}
1445 1463
1446sub find($) { 1464sub find($) {
1447 return $cf::PLAYER{$_[0]} || do { 1465 return $cf::PLAYER{$_[0]} || do {
1448 my $login = $_[0]; 1466 my $login = $_[0];
… …
1619 } 1637 }
1620 1638
1621 \@paths 1639 \@paths
1622} 1640}
1623 1641
1624=item $protocol_xml = $player->expand_cfpod ($crossfire_pod) 1642=item $protocol_xml = $player->expand_cfpod ($cfpod)
1625 1643
1626Expand crossfire pod fragments into protocol xml. 1644Expand deliantra pod fragments into protocol xml.
1627
1628=cut
1629
1630sub expand_cfpod {
1631 my ($self, $pod) = @_;
1632
1633 my @nest = [qr<\G$>, undef, ""];
1634 my $xml;
1635
1636 for ($pod) {
1637 while () {
1638 if (/\G( (?: [^BCEGHITUZ&>\n\ ]+ | [BCEGHITUZ](?!<) | \ (?!>) )+ )/xgcs) {
1639 $xml .= $1;
1640 } elsif (/\G\n(?=\S)/xgcs) {
1641 $xml .= " ";
1642 } elsif (/\G\n/xgcs) {
1643 $xml .= "\n";
1644 } elsif (/\G ([BCEGHITUZ]) (< (?: <+\ | (?!<) ) )/xgcs) {
1645 my ($code, $delim) = ($1, scalar reverse $2);
1646 $delim =~ y/</>/; # delim now contains the stop sequence
1647 $delim = qr{\G\Q$delim};
1648
1649 my $cb;
1650
1651 if ($code eq "B") {
1652 $cb = sub { "<b>$_[0]</b>" };
1653 } elsif ($code eq "C") {
1654 $cb = sub { "<tt>$_[0]</tt>" };
1655 } elsif ($code eq "E") {
1656 $cb = sub { warn "E<$_[0]>\n";"&$_[0];" };
1657 } elsif ($code eq "G") {
1658 $cb = sub {
1659 my ($male, $female) = split /\|/, $_[0];
1660 $self->gender ? $female : $male
1661 };
1662 } elsif ($code eq "H") {
1663 $cb = sub {
1664 (
1665 "<fg name=\"lightblue\">[$_[0] (Use hintmode to suppress hints)]</fg>",
1666 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1667 "",
1668 )[$self->{hintmode}];
1669 };
1670 } elsif ($code eq "I") {
1671 $cb = sub { "<i>$_[0]</i>" };
1672 } elsif ($code eq "T") {
1673 $cb = sub { "<big><b>$_[0]</b></big>" };
1674 } elsif ($code eq "U") {
1675 $cb = sub { "<u>$_[0]</u>" };
1676 } elsif ($code eq "Z") {
1677 $cb = sub { };
1678 } else {
1679 die "FATAL error in expand_cfpod";
1680 }
1681
1682 push @nest, [$delim, $cb, $xml];
1683 undef $xml;
1684
1685 } elsif ($_ =~ /$nest[-1][0]/gcs) {
1686 my $nest = pop @nest;
1687
1688 if ($nest->[1]) {
1689 $xml = $nest->[2] . $nest->[1]->($xml);
1690 } else {
1691 last;
1692 }
1693 } elsif (/\G</xgcs) {
1694 $xml .= "&lt;";
1695 } elsif (/\G&/xgcs) {
1696 $xml .= "&amp;";
1697 } elsif (/\G>/xgcs) {
1698 $xml .= ">";
1699 } else {
1700 if ($pod =~ /\G(.+)/xgcs) {
1701 warn "parse error (at $1)($nest[-1][0]) while expanding cfpod:\n$pod";
1702 last;
1703 } else {
1704 warn "parse error (unclosed interior sequence at end of cfpod) while expanding cfpod:\n$pod";
1705 return "<b>Sorry, the server encountered an internal error when formatting this message, please report this.</b>";
1706 }
1707 }
1708 }
1709 }
1710
1711 $xml
1712}
1713
1714sub hintmode {
1715 $_[0]{hintmode} = $_[1] if @_ > 1;
1716 $_[0]{hintmode}
1717}
1718 1645
1719=item $player->ext_reply ($msgid, @msg) 1646=item $player->ext_reply ($msgid, @msg)
1720 1647
1721Sends an ext reply to the player. 1648Sends an ext reply to the player.
1722 1649
… …
2035sub find { 1962sub find {
2036 my ($path, $origin) = @_; 1963 my ($path, $origin) = @_;
2037 1964
2038 $path = normalise $path, $origin && $origin->path; 1965 $path = normalise $path, $origin && $origin->path;
2039 1966
2040 cf::lock_wait "map_data:$path";#d#remove 1967 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
2041 cf::lock_wait "map_find:$path"; 1968 my $guard2 = cf::lock_acquire "map_find:$path";
2042 1969
2043 $cf::MAP{$path} || do { 1970 $cf::MAP{$path} || do {
2044 my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
2045 my $guard2 = cf::lock_acquire "map_find:$path";
2046
2047 my $map = new_from_path cf::map $path 1971 my $map = new_from_path cf::map $path
2048 or return; 1972 or return;
2049 1973
2050 $map->{last_save} = $cf::RUNTIME; 1974 $map->{last_save} = $cf::RUNTIME;
2051 1975
… …
2536 2460
2537=item $player_object->enter_link 2461=item $player_object->enter_link
2538 2462
2539Freezes the player and moves him/her to a special map (C<{link}>). 2463Freezes the player and moves him/her to a special map (C<{link}>).
2540 2464
2541The player should be reasonably safe there for short amounts of time. You 2465The player should be reasonably safe there for short amounts of time (e.g.
2542I<MUST> call C<leave_link> as soon as possible, though. 2466for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2467though, as the palyer cannot control the character while it is on the link
2468map.
2543 2469
2544Will never block. 2470Will never block.
2545 2471
2546=item $player_object->leave_link ($map, $x, $y) 2472=item $player_object->leave_link ($map, $x, $y)
2547 2473
… …
2605 2531
2606 $map->load; 2532 $map->load;
2607 $map->load_neighbours; 2533 $map->load_neighbours;
2608 2534
2609 return unless $self->contr->active; 2535 return unless $self->contr->active;
2536 $self->flag (cf::FLAG_DEBUG, 0);#d# temp
2610 $self->activate_recursive; 2537 $self->activate_recursive;
2611 2538
2612 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2539 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2613 $self->enter_map ($map, $x, $y); 2540 $self->enter_map ($map, $x, $y);
2614} 2541}
… …
2777 $self->contr->savebed ($map, $x, $y) 2704 $self->contr->savebed ($map, $x, $y)
2778 if $exit->flag (cf::FLAG_DAMNED); 2705 if $exit->flag (cf::FLAG_DAMNED);
2779 2706
2780 1 2707 1
2781 }) { 2708 }) {
2782 $self->message ("Something went wrong deep within the crossfire server. " 2709 $self->message ("Something went wrong deep within the deliantra server. "
2783 . "I'll try to bring you back to the map you were before. " 2710 . "I'll try to bring you back to the map you were before. "
2784 . "Please report this to the dungeon master!", 2711 . "Please report this to the dungeon master!",
2785 cf::NDI_UNIQUE | cf::NDI_RED); 2712 cf::NDI_UNIQUE | cf::NDI_RED);
2786 2713
2787 warn "ERROR in enter_exit: $@"; 2714 warn "ERROR in enter_exit: $@";
… …
2853 id => "infobox", 2780 id => "infobox",
2854 title => "Body Parts", 2781 title => "Body Parts",
2855 reply => undef, 2782 reply => undef,
2856 tooltip => "Shows which body parts you posess and are available", 2783 tooltip => "Shows which body parts you posess and are available",
2857 }, 2784 },
2785 "c/skills" => {
2786 id => "infobox",
2787 title => "Skills",
2788 reply => undef,
2789 tooltip => "Shows your experience per skill and item power",
2790 },
2858 "c/uptime" => { 2791 "c/uptime" => {
2859 id => "infobox", 2792 id => "infobox",
2860 title => "Uptime", 2793 title => "Uptime",
2861 reply => undef, 2794 reply => undef,
2862 tooltip => "How long the server has been running since last restart", 2795 tooltip => "How long the server has been running since last restart",
… …
2876); 2809);
2877 2810
2878sub cf::client::send_msg { 2811sub cf::client::send_msg {
2879 my ($self, $channel, $msg, $color, @extra) = @_; 2812 my ($self, $channel, $msg, $color, @extra) = @_;
2880 2813
2881 $msg = $self->pl->expand_cfpod ($msg); 2814 $msg = $self->pl->expand_cfpod ($msg)
2815 unless $color & cf::NDI_VERBATIM;
2882 2816
2883 $color &= cf::NDI_CLIENT_MASK; # just in case... 2817 $color &= cf::NDI_CLIENT_MASK; # just in case...
2884 2818
2885 # check predefined channels, for the benefit of C 2819 # check predefined channels, for the benefit of C
2886 if ($CHANNEL{$channel}) { 2820 if ($CHANNEL{$channel}) {
… …
3415 reload_treasures; 3349 reload_treasures;
3416 3350
3417 warn "finished reloading resource files\n"; 3351 warn "finished reloading resource files\n";
3418} 3352}
3419 3353
3420sub init {
3421 my $guard = freeze_mainloop;
3422
3423 evthread_start IO::AIO::poll_fileno;
3424
3425 reload_resources;
3426}
3427
3428sub reload_config { 3354sub reload_config {
3429 open my $fh, "<:utf8", "$CONFDIR/config" 3355 open my $fh, "<:utf8", "$CONFDIR/config"
3430 or return; 3356 or return;
3431 3357
3432 local $/; 3358 local $/;
… …
3444 }; 3370 };
3445 warn $@ if $@; 3371 warn $@ if $@;
3446 } 3372 }
3447} 3373}
3448 3374
3375sub pidfile() {
3376 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3377 or die "$PIDFILE: $!";
3378 flock $fh, &Fcntl::LOCK_EX
3379 or die "$PIDFILE: flock: $!";
3380 $fh
3381}
3382
3383# make sure only one server instance is running at any one time
3384sub atomic {
3385 my $fh = pidfile;
3386
3387 my $pid = <$fh>;
3388 kill 9, $pid if $pid > 0;
3389
3390 seek $fh, 0, 0;
3391 print $fh $$;
3392}
3393
3449sub main { 3394sub main {
3395 cf::init_globals; # initialise logging
3396
3397 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3398 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3399 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3400 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3401
3402 cf::init_experience;
3403 cf::init_anim;
3404 cf::init_attackmess;
3405 cf::init_dynamic;
3406 cf::init_block;
3407
3408 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3409
3450 # we must not ever block the main coroutine 3410 # we must not ever block the main coroutine
3451 local $Coro::idle = sub { 3411 local $Coro::idle = sub {
3452 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3412 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3453 (async { 3413 (async {
3454 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3414 $Coro::current->{desc} = "IDLE BUG HANDLER";
3455 EV::loop EV::LOOP_ONESHOT; 3415 EV::loop EV::LOOP_ONESHOT;
3456 })->prio (Coro::PRIO_MAX); 3416 })->prio (Coro::PRIO_MAX);
3457 }; 3417 };
3458 3418
3459 { 3419 evthread_start IO::AIO::poll_fileno;
3460 my $guard = freeze_mainloop; 3420
3421 cf::sync_job {
3422 reload_resources;
3461 reload_config; 3423 reload_config;
3462 db_init; 3424 db_init;
3425
3426 cf::load_settings;
3427 cf::load_materials;
3428 cf::init_uuid;
3429 cf::init_signals;
3430 cf::init_commands;
3431 cf::init_skills;
3432
3433 cf::init_beforeplay;
3434
3435 atomic;
3436
3463 load_extensions; 3437 load_extensions;
3464 3438
3465 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3439 utime time, time, $RUNTIMEFILE;
3440
3441 # no (long-running) fork's whatsoever before this point(!)
3442 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3443
3444 (pop @POST_INIT)->(0) while @POST_INIT;
3466 } 3445 };
3467 3446
3468 EV::loop; 3447 EV::loop;
3469} 3448}
3470 3449
3471############################################################################# 3450#############################################################################
… …
3480 }; 3459 };
3481 } 3460 }
3482} 3461}
3483 3462
3484sub write_runtime_sync { 3463sub write_runtime_sync {
3485 my $runtime = "$LOCALDIR/runtime";
3486
3487 # first touch the runtime file to show we are still running: 3464 # first touch the runtime file to show we are still running:
3488 # the fsync below can take a very very long time. 3465 # the fsync below can take a very very long time.
3489 3466
3490 IO::AIO::aio_utime $runtime, undef, undef; 3467 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3491 3468
3492 my $guard = cf::lock_acquire "write_runtime"; 3469 my $guard = cf::lock_acquire "write_runtime";
3493 3470
3494 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 3471 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
3495 or return; 3472 or return;
3496 3473
3497 my $value = $cf::RUNTIME + 90 + 10; 3474 my $value = $cf::RUNTIME + 90 + 10;
3498 # 10 is the runtime save interval, for a monotonic clock 3475 # 10 is the runtime save interval, for a monotonic clock
3499 # 60 allows for the watchdog to kill the server. 3476 # 60 allows for the watchdog to kill the server.
… …
3509 aio_utime $fh, undef, undef; 3486 aio_utime $fh, undef, undef;
3510 3487
3511 close $fh 3488 close $fh
3512 or return; 3489 or return;
3513 3490
3514 aio_rename "$runtime~", $runtime 3491 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3515 and return; 3492 and return;
3516 3493
3517 warn "runtime file written.\n"; 3494 warn "runtime file written.\n";
3518 3495
3519 1 3496 1
… …
3531 my $uuid = "$LOCALDIR/uuid"; 3508 my $uuid = "$LOCALDIR/uuid";
3532 3509
3533 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644 3510 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3534 or return; 3511 or return;
3535 3512
3536 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur; 3513 my $value = uuid_seq uuid_cur;
3514
3515 unless ($value) {
3516 warn "cowardly refusing to write zero uuid value!\n";
3517 return;
3518 }
3519
3520 my $value = uuid_str $value + $uuid_skip;
3537 $uuid_skip = 0; 3521 $uuid_skip = 0;
3538 3522
3539 (aio_write $fh, 0, (length $value), $value, 0) <= 0 3523 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3540 and return; 3524 and return;
3541 3525
… …
3563} 3547}
3564 3548
3565sub emergency_save() { 3549sub emergency_save() {
3566 my $freeze_guard = cf::freeze_mainloop; 3550 my $freeze_guard = cf::freeze_mainloop;
3567 3551
3568 warn "enter emergency perl save\n"; 3552 warn "emergency_perl_save: enter\n";
3569 3553
3570 cf::sync_job { 3554 cf::sync_job {
3555 # this is a trade-off: we want to be very quick here, so
3556 # save all maps without fsync, and later call a global sync
3557 # (which in turn might be very very slow)
3558 local $USE_FSYNC = 0;
3559
3571 # use a peculiar iteration method to avoid tripping on perl 3560 # use a peculiar iteration method to avoid tripping on perl
3572 # refcount bugs in for. also avoids problems with players 3561 # refcount bugs in for. also avoids problems with players
3573 # and maps saved/destroyed asynchronously. 3562 # and maps saved/destroyed asynchronously.
3574 warn "begin emergency player save\n"; 3563 warn "emergency_perl_save: begin player save\n";
3575 for my $login (keys %cf::PLAYER) { 3564 for my $login (keys %cf::PLAYER) {
3576 my $pl = $cf::PLAYER{$login} or next; 3565 my $pl = $cf::PLAYER{$login} or next;
3577 $pl->valid or next; 3566 $pl->valid or next;
3578 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt 3567 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3579 $pl->save; 3568 $pl->save;
3580 } 3569 }
3581 warn "end emergency player save\n"; 3570 warn "emergency_perl_save: end player save\n";
3582 3571
3583 warn "begin emergency map save\n"; 3572 warn "emergency_perl_save: begin map save\n";
3584 for my $path (keys %cf::MAP) { 3573 for my $path (keys %cf::MAP) {
3585 my $map = $cf::MAP{$path} or next; 3574 my $map = $cf::MAP{$path} or next;
3586 $map->valid or next; 3575 $map->valid or next;
3587 $map->save; 3576 $map->save;
3588 } 3577 }
3589 warn "end emergency map save\n"; 3578 warn "emergency_perl_save: end map save\n";
3590 3579
3591 warn "begin emergency database checkpoint\n"; 3580 warn "emergency_perl_save: begin database checkpoint\n";
3592 BDB::db_env_txn_checkpoint $DB_ENV; 3581 BDB::db_env_txn_checkpoint $DB_ENV;
3593 warn "end emergency database checkpoint\n"; 3582 warn "emergency_perl_save: end database checkpoint\n";
3594 3583
3595 warn "begin write uuid\n"; 3584 warn "emergency_perl_save: begin write uuid\n";
3596 write_uuid_sync 1; 3585 write_uuid_sync 1;
3597 warn "end write uuid\n"; 3586 warn "emergency_perl_save: end write uuid\n";
3598 }; 3587 };
3599 3588
3589 warn "emergency_perl_save: starting sync()\n";
3590 IO::AIO::aio_sync sub {
3591 warn "emergency_perl_save: finished sync()\n";
3592 };
3593
3600 warn "leave emergency perl save\n"; 3594 warn "emergency_perl_save: leave\n";
3601} 3595}
3602 3596
3603sub post_cleanup { 3597sub post_cleanup {
3604 my ($make_core) = @_; 3598 my ($make_core) = @_;
3605 3599
3606 warn Carp::longmess "post_cleanup backtrace" 3600 warn Carp::longmess "post_cleanup backtrace"
3607 if $make_core; 3601 if $make_core;
3602
3603 my $fh = pidfile;
3604 unlink $PIDFILE if <$fh> == $$;
3608} 3605}
3609 3606
3610# a safer delete_package, copied from Symbol 3607# a safer delete_package, copied from Symbol
3611sub clear_package($) { 3608sub clear_package($) {
3612 my $pkg = shift; 3609 my $pkg = shift;
… …
3628 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH}; 3625 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3629 for my $name (keys %$leaf_symtab) { 3626 for my $name (keys %$leaf_symtab) {
3630 _gv_clear *{"$pkg$name"}; 3627 _gv_clear *{"$pkg$name"};
3631# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"}; 3628# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3632 } 3629 }
3633 warn "cleared package #$pkg\n";#d# 3630 warn "cleared package $pkg\n";#d#
3634} 3631}
3635
3636our $RELOAD; # how many times to reload
3637 3632
3638sub do_reload_perl() { 3633sub do_reload_perl() {
3639 # can/must only be called in main 3634 # can/must only be called in main
3640 if ($Coro::current != $Coro::main) { 3635 if ($Coro::current != $Coro::main) {
3641 warn "can only reload from main coroutine"; 3636 warn "can only reload from main coroutine";
3642 return; 3637 return;
3643 } 3638 }
3644 3639
3645 return if $RELOAD++; 3640 return if $RELOAD++;
3641
3642 my $t1 = EV::time;
3646 3643
3647 while ($RELOAD) { 3644 while ($RELOAD) {
3648 warn "reloading..."; 3645 warn "reloading...";
3649 3646
3650 warn "entering sync_job"; 3647 warn "entering sync_job";
… …
3729 cf::reload_config; 3726 cf::reload_config;
3730 3727
3731 warn "loading extensions"; 3728 warn "loading extensions";
3732 cf::load_extensions; 3729 cf::load_extensions;
3733 3730
3731 if ($REATTACH_ON_RELOAD) {
3734 warn "reattaching attachments to objects/players"; 3732 warn "reattaching attachments to objects/players";
3735 _global_reattach; # objects, sockets 3733 _global_reattach; # objects, sockets
3736 warn "reattaching attachments to maps"; 3734 warn "reattaching attachments to maps";
3737 reattach $_ for values %MAP; 3735 reattach $_ for values %MAP;
3738 warn "reattaching attachments to players"; 3736 warn "reattaching attachments to players";
3739 reattach $_ for values %PLAYER; 3737 reattach $_ for values %PLAYER;
3738 }
3739
3740 warn "running post_init jobs";
3741 (pop @POST_INIT)->(1) while @POST_INIT;
3740 3742
3741 warn "leaving sync_job"; 3743 warn "leaving sync_job";
3742 3744
3743 1 3745 1
3744 } or do { 3746 } or do {
… …
3747 }; 3749 };
3748 3750
3749 warn "reloaded"; 3751 warn "reloaded";
3750 --$RELOAD; 3752 --$RELOAD;
3751 } 3753 }
3754
3755 $t1 = EV::time - $t1;
3756 warn "reload completed in ${t1}s\n";
3752}; 3757};
3753 3758
3754our $RELOAD_WATCHER; # used only during reload 3759our $RELOAD_WATCHER; # used only during reload
3755 3760
3756sub reload_perl() { 3761sub reload_perl() {
3757 # doing reload synchronously and two reloads happen back-to-back, 3762 # doing reload synchronously and two reloads happen back-to-back,
3758 # coro crashes during coro_state_free->destroy here. 3763 # coro crashes during coro_state_free->destroy here.
3759 3764
3765 $RELOAD_WATCHER ||= cf::async {
3766 Coro::AIO::aio_wait cache_extensions;
3767
3760 $RELOAD_WATCHER ||= EV::timer 0, 0, sub { 3768 $RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
3761 do_reload_perl; 3769 do_reload_perl;
3762 undef $RELOAD_WATCHER; 3770 undef $RELOAD_WATCHER;
3771 };
3763 }; 3772 };
3764} 3773}
3765 3774
3766register_command "reload" => sub { 3775register_command "reload" => sub {
3767 my ($who, $arg) = @_; 3776 my ($who, $arg) = @_;
… …
3893 $msg =~ s/\n//; 3902 $msg =~ s/\n//;
3894 3903
3895 # limit the # of concurrent backtraces 3904 # limit the # of concurrent backtraces
3896 if ($_log_backtrace < 2) { 3905 if ($_log_backtrace < 2) {
3897 ++$_log_backtrace; 3906 ++$_log_backtrace;
3907 my $perl_bt = Carp::longmess $msg;
3898 async { 3908 async {
3899 $Coro::current->{desc} = "abt $msg"; 3909 $Coro::current->{desc} = "abt $msg";
3900 3910
3901 my @bt = fork_call { 3911 my @bt = fork_call {
3902 @addr = map { sprintf "%x", $_ } @addr; 3912 @addr = map { sprintf "%x", $_ } @addr;
… …
3913 } 3923 }
3914 3924
3915 @funcs 3925 @funcs
3916 }; 3926 };
3917 3927
3918 LOG llevInfo, "[ABT] $msg\n"; 3928 LOG llevInfo, "[ABT] $perl_bt\n";
3929 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3919 LOG llevInfo, "[ABT] $_\n" for @bt; 3930 LOG llevInfo, "[ABT] $_\n" for @bt;
3920 --$_log_backtrace; 3931 --$_log_backtrace;
3921 }; 3932 };
3922 } else { 3933 } else {
3923 LOG llevInfo, "[ABT] $msg\n"; 3934 LOG llevInfo, "[ABT] $msg\n";

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