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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.439 by root, Mon Jul 14 16:42:49 2008 UTC vs.
Revision 1.456 by root, Tue Sep 30 04:00:35 2008 UTC

… …
19# The authors can be reached via e-mail to <support@deliantra.net> 19# The authors can be reached via e-mail to <support@deliantra.net>
20# 20#
21 21
22package cf; 22package cf;
23 23
24use 5.10.0;
24use utf8; 25use utf8;
25use strict; 26use strict "vars", "subs";
26 27
27use Symbol; 28use Symbol;
28use List::Util; 29use List::Util;
29use Socket; 30use Socket;
30use EV; 31use EV;
… …
34use Storable (); 35use Storable ();
35 36
36use Coro (); 37use Coro ();
37use Coro::State; 38use Coro::State;
38use Coro::Handle; 39use Coro::Handle;
40use Coro::EV;
39use Coro::AnyEvent; 41use Coro::AnyEvent;
40use Coro::Timer; 42use Coro::Timer;
41use Coro::Signal; 43use Coro::Signal;
42use Coro::Semaphore; 44use Coro::Semaphore;
43use Coro::AnyEvent; 45use Coro::AnyEvent;
… …
61 63
62# configure various modules to our taste 64# configure various modules to our taste
63# 65#
64$Storable::canonical = 1; # reduce rsync transfers 66$Storable::canonical = 1; # reduce rsync transfers
65Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 67Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
68
69$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
70
71# make sure c-lzf reinitialises itself
72Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
66Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 73Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
67
68$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
69 74
70sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 75sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
71 76
72our %COMMAND = (); 77our %COMMAND = ();
73our %COMMAND_TIME = (); 78our %COMMAND_TIME = ();
… …
76our %EXTCMD = (); 81our %EXTCMD = ();
77our %EXTICMD = (); 82our %EXTICMD = ();
78our %EXT_CORO = (); # coroutines bound to extensions 83our %EXT_CORO = (); # coroutines bound to extensions
79our %EXT_MAP = (); # pluggable maps 84our %EXT_MAP = (); # pluggable maps
80 85
81our $RELOAD; # number of reloads so far 86our $RELOAD; # number of reloads so far, non-zero while in reload
82our @EVENT; 87our @EVENT;
83 88
84our $CONFDIR = confdir; 89our $CONFDIR = confdir;
85our $DATADIR = datadir; 90our $DATADIR = datadir;
86our $LIBDIR = "$DATADIR/ext"; 91our $LIBDIR = "$DATADIR/ext";
87our $PODDIR = "$DATADIR/pod"; 92our $PODDIR = "$DATADIR/pod";
88our $MAPDIR = "$DATADIR/" . mapdir; 93our $MAPDIR = "$DATADIR/" . mapdir;
89our $LOCALDIR = localdir; 94our $LOCALDIR = localdir;
90our $TMPDIR = "$LOCALDIR/" . tmpdir; 95our $TMPDIR = "$LOCALDIR/" . tmpdir;
91our $UNIQUEDIR = "$LOCALDIR/" . uniquedir; 96our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
92our $PLAYERDIR = "$LOCALDIR/" . playerdir; 97our $PLAYERDIR = "$LOCALDIR/" . playerdir;
93our $RANDOMDIR = "$LOCALDIR/random"; 98our $RANDOMDIR = "$LOCALDIR/random";
94our $BDBDIR = "$LOCALDIR/db"; 99our $BDBDIR = "$LOCALDIR/db";
100our $PIDFILE = "$LOCALDIR/pid";
101our $RUNTIMEFILE = "$LOCALDIR/runtime";
102
95our %RESOURCE; 103our %RESOURCE;
96 104
97our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 105our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
98our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 106our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
99our $NEXT_TICK; 107our $NEXT_TICK;
… …
120our $LOAD; # a number between 0 (idle) and 1 (too many objects) 128our $LOAD; # a number between 0 (idle) and 1 (too many objects)
121our $LOADAVG; # same thing, but with alpha-smoothing 129our $LOADAVG; # same thing, but with alpha-smoothing
122our $JITTER; # average jitter 130our $JITTER; # average jitter
123our $TICK_START; # for load detecting purposes 131our $TICK_START; # for load detecting purposes
124 132
133our @POST_INIT;
134
125binmode STDOUT; 135binmode STDOUT;
126binmode STDERR; 136binmode STDERR;
127 137
128# read virtual server time, if available 138# read virtual server time, if available
129unless ($RUNTIME || !-e "$LOCALDIR/runtime") { 139unless ($RUNTIME || !-e $RUNTIMEFILE) {
130 open my $fh, "<", "$LOCALDIR/runtime" 140 open my $fh, "<", $RUNTIMEFILE
131 or die "unable to read runtime file: $!"; 141 or die "unable to read $RUNTIMEFILE file: $!";
132 $RUNTIME = <$fh> + 0.; 142 $RUNTIME = <$fh> + 0.;
133} 143}
134 144
135mkdir $_ 145mkdir $_
136 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR; 146 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
… …
243for my $pkg (qw( 253for my $pkg (qw(
244 cf::global cf::attachable 254 cf::global cf::attachable
245 cf::object cf::object::player 255 cf::object cf::object::player
246 cf::client cf::player 256 cf::client cf::player
247 cf::arch cf::living 257 cf::arch cf::living
258 cf::map cf::mapspace
248 cf::map cf::party cf::region 259 cf::party cf::region
249)) { 260)) {
250 no strict 'refs';
251 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; 261 @{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
252} 262}
253 263
254$EV::DIED = sub { 264$EV::DIED = sub {
255 warn "error in event callback: @_"; 265 warn "error in event callback: @_";
… …
297our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max 307our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
298 308
299sub encode_json($) { $json_coder->encode ($_[0]) } 309sub encode_json($) { $json_coder->encode ($_[0]) }
300sub decode_json($) { $json_coder->decode ($_[0]) } 310sub decode_json($) { $json_coder->decode ($_[0]) }
301 311
312=item cf::post_init { BLOCK }
313
314Execute the given codeblock, I<after> all extensions have been (re-)loaded,
315but I<before> the server starts ticking again.
316
317The cdoeblock will have a single boolean argument to indicate whether this
318is a reload or not.
319
320=cut
321
322sub post_init(&) {
323 push @POST_INIT, shift;
324}
325
302=item cf::lock_wait $string 326=item cf::lock_wait $string
303 327
304Wait until the given lock is available. See cf::lock_acquire. 328Wait until the given lock is available. See cf::lock_acquire.
305 329
306=item my $lock = cf::lock_acquire $string 330=item my $lock = cf::lock_acquire $string
… …
333 return;#d# 357 return;#d#
334 }#d# 358 }#d#
335 359
336 # wait for lock, if any 360 # wait for lock, if any
337 while ($LOCK{$key}) { 361 while ($LOCK{$key}) {
362 #local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
338 push @{ $LOCK{$key} }, $Coro::current; 363 push @{ $LOCK{$key} }, $Coro::current;
339 Coro::schedule; 364 Coro::schedule;
340 } 365 }
341} 366}
342 367
… …
725 750
726############################################################################# 751#############################################################################
727 752
728=head2 ATTACHABLE OBJECTS 753=head2 ATTACHABLE OBJECTS
729 754
730Many objects in crossfire are so-called attachable objects. That means you can 755Many objects in deliantra are so-called attachable objects. That means you can
731attach callbacks/event handlers (a collection of which is called an "attachment") 756attach callbacks/event handlers (a collection of which is called an "attachment")
732to it. All such attachable objects support the following methods. 757to it. All such attachable objects support the following methods.
733 758
734In the following description, CLASS can be any of C<global>, C<object> 759In the following description, CLASS can be any of C<global>, C<object>
735C<player>, C<client> or C<map> (i.e. the attachable objects in 760C<player>, C<client> or C<map> (i.e. the attachable objects in
… …
785=item cf::CLASS::attachment $name, ... 810=item cf::CLASS::attachment $name, ...
786 811
787Register an attachment by C<$name> through which attachable objects of the 812Register an attachment by C<$name> through which attachable objects of the
788given CLASS can refer to this attachment. 813given CLASS can refer to this attachment.
789 814
790Some classes such as crossfire maps and objects can specify attachments 815Some classes such as deliantra maps and objects can specify attachments
791that are attached at load/instantiate time, thus the need for a name. 816that are attached at load/instantiate time, thus the need for a name.
792 817
793These calls expect any number of the following handler/hook descriptions: 818These calls expect any number of the following handler/hook descriptions:
794 819
795=over 4 820=over 4
… …
1086 1111
1087sub reattach { 1112sub reattach {
1088 # basically do the same as instantiate, without calling instantiate 1113 # basically do the same as instantiate, without calling instantiate
1089 my ($obj) = @_; 1114 my ($obj) = @_;
1090 1115
1116 # no longer needed after getting rid of delete_package?
1091 bless $obj, ref $obj; # re-bless in case extensions have been reloaded 1117 #bless $obj, ref $obj; # re-bless in case extensions have been reloaded
1092 1118
1093 my $registry = $obj->registry; 1119 my $registry = $obj->registry;
1094 1120
1095 @$registry = (); 1121 @$registry = ();
1096 1122
… …
1161 } else { 1187 } else {
1162 aio_unlink "$filename.pst"; 1188 aio_unlink "$filename.pst";
1163 } 1189 }
1164 1190
1165 aio_rename "$filename~", $filename; 1191 aio_rename "$filename~", $filename;
1192
1193 $filename =~ s%/[^/]+$%%;
1194 aio_pathsync $filename;
1166 } else { 1195 } else {
1167 warn "FATAL: $filename~: $!\n"; 1196 warn "FATAL: $filename~: $!\n";
1168 } 1197 }
1169 } else { 1198 } else {
1170 aio_unlink $filename; 1199 aio_unlink $filename;
… …
1332 1361
1333 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 } 1362 $ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1334 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m; 1363 if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1335 1364
1336 $ext{source} = 1365 $ext{source} =
1337 "package $pkg; use strict; use utf8;\n" 1366 "package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
1338 . "#line 1 \"$path\"\n{\n" 1367 . "#line 1 \"$path\"\n{\n"
1339 . $source 1368 . $source
1340 . "\n};\n1"; 1369 . "\n};\n1";
1341 1370
1342 $todo{$base} = \%ext; 1371 $todo{$base} = \%ext;
… …
1382 1411
1383=back 1412=back
1384 1413
1385=head2 CORE EXTENSIONS 1414=head2 CORE EXTENSIONS
1386 1415
1387Functions and methods that extend core crossfire objects. 1416Functions and methods that extend core deliantra objects.
1388 1417
1389=cut 1418=cut
1390 1419
1391package cf::player; 1420package cf::player;
1392 1421
… …
1435 1464
1436sub exists($) { 1465sub exists($) {
1437 my ($login) = @_; 1466 my ($login) = @_;
1438 1467
1439 $cf::PLAYER{$login} 1468 $cf::PLAYER{$login}
1440 or cf::sync_job { !aio_stat path $login } 1469 or !aio_stat path $login
1441} 1470}
1442 1471
1443sub find($) { 1472sub find($) {
1444 return $cf::PLAYER{$_[0]} || do { 1473 return $cf::PLAYER{$_[0]} || do {
1445 my $login = $_[0]; 1474 my $login = $_[0];
… …
1520 my ($pl) = @_; 1549 my ($pl) = @_;
1521 1550
1522 my $name = $pl->ob->name; 1551 my $name = $pl->ob->name;
1523 1552
1524 $pl->{deny_save} = 1; 1553 $pl->{deny_save} = 1;
1525 $pl->password ("*"); # this should lock out the player until we nuked the dir 1554 $pl->password ("*"); # this should lock out the player until we have nuked the dir
1526 1555
1527 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; 1556 $pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1528 $pl->deactivate; 1557 $pl->deactivate;
1529 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy; 1558 my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1530 $pl->ob->check_score; 1559 $pl->ob->check_score;
… …
1616 } 1645 }
1617 1646
1618 \@paths 1647 \@paths
1619} 1648}
1620 1649
1621=item $protocol_xml = $player->expand_cfpod ($crossfire_pod) 1650=item $protocol_xml = $player->expand_cfpod ($cfpod)
1622 1651
1623Expand crossfire pod fragments into protocol xml. 1652Expand deliantra pod fragments into protocol xml.
1624
1625=cut
1626
1627use re 'eval';
1628
1629my $group;
1630my $interior; $interior = qr{
1631 # match a pod interior sequence sans C<< >>
1632 (?:
1633 \ (.*?)\ (?{ $group = $^N })
1634 | < (??{$interior}) >
1635 )
1636}x;
1637
1638sub expand_cfpod {
1639 my ($self, $pod) = @_;
1640
1641 my $xml;
1642
1643 while () {
1644 if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
1645 $group = $1;
1646
1647 $group =~ s/&/&amp;/g;
1648 $group =~ s/</&lt;/g;
1649
1650 $xml .= $group;
1651 } elsif ($pod =~ m%\G
1652 ([BCGHITU])
1653 <
1654 (?:
1655 ([^<>]*) (?{ $group = $^N })
1656 | < $interior >
1657 )
1658 >
1659 %gcsx
1660 ) {
1661 my ($code, $data) = ($1, $group);
1662
1663 if ($code eq "B") {
1664 $xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
1665 } elsif ($code eq "I") {
1666 $xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
1667 } elsif ($code eq "U") {
1668 $xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
1669 } elsif ($code eq "C") {
1670 $xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
1671 } elsif ($code eq "T") {
1672 $xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
1673 } elsif ($code eq "G") {
1674 my ($male, $female) = split /\|/, $data;
1675 $data = $self->gender ? $female : $male;
1676 $xml .= expand_cfpod ($self, $data);
1677 } elsif ($code eq "H") {
1678 $xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
1679 "<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
1680 "")
1681 [$self->{hintmode}];
1682 } else {
1683 $xml .= "error processing '$code($data)' directive";
1684 }
1685 } else {
1686 if ($pod =~ /\G(.+)/) {
1687 warn "parse error while expanding $pod (at $1)";
1688 }
1689 last;
1690 }
1691 }
1692
1693 for ($xml) {
1694 # create single paragraphs (very hackish)
1695 s/(?<=\S)\n(?=\w)/ /g;
1696
1697 # compress some whitespace
1698 s/\s+\n/\n/g; # ws line-ends
1699 s/\n\n+/\n/g; # double lines
1700 s/^\n+//; # beginning lines
1701 s/\n+$//; # ending lines
1702 }
1703
1704 $xml
1705}
1706
1707no re 'eval';
1708
1709sub hintmode {
1710 $_[0]{hintmode} = $_[1] if @_ > 1;
1711 $_[0]{hintmode}
1712}
1713 1653
1714=item $player->ext_reply ($msgid, @msg) 1654=item $player->ext_reply ($msgid, @msg)
1715 1655
1716Sends an ext reply to the player. 1656Sends an ext reply to the player.
1717 1657
… …
2531 2471
2532=item $player_object->enter_link 2472=item $player_object->enter_link
2533 2473
2534Freezes the player and moves him/her to a special map (C<{link}>). 2474Freezes the player and moves him/her to a special map (C<{link}>).
2535 2475
2536The player should be reasonably safe there for short amounts of time. You 2476The player should be reasonably safe there for short amounts of time (e.g.
2537I<MUST> call C<leave_link> as soon as possible, though. 2477for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2478though, as the palyer cannot control the character while it is on the link
2479map.
2538 2480
2539Will never block. 2481Will never block.
2540 2482
2541=item $player_object->leave_link ($map, $x, $y) 2483=item $player_object->leave_link ($map, $x, $y)
2542 2484
… …
2600 2542
2601 $map->load; 2543 $map->load;
2602 $map->load_neighbours; 2544 $map->load_neighbours;
2603 2545
2604 return unless $self->contr->active; 2546 return unless $self->contr->active;
2547 $self->flag (cf::FLAG_DEBUG, 0);#d# temp
2605 $self->activate_recursive; 2548 $self->activate_recursive;
2606 2549
2607 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2550 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2608 $self->enter_map ($map, $x, $y); 2551 $self->enter_map ($map, $x, $y);
2609} 2552}
… …
2772 $self->contr->savebed ($map, $x, $y) 2715 $self->contr->savebed ($map, $x, $y)
2773 if $exit->flag (cf::FLAG_DAMNED); 2716 if $exit->flag (cf::FLAG_DAMNED);
2774 2717
2775 1 2718 1
2776 }) { 2719 }) {
2777 $self->message ("Something went wrong deep within the crossfire server. " 2720 $self->message ("Something went wrong deep within the deliantra server. "
2778 . "I'll try to bring you back to the map you were before. " 2721 . "I'll try to bring you back to the map you were before. "
2779 . "Please report this to the dungeon master!", 2722 . "Please report this to the dungeon master!",
2780 cf::NDI_UNIQUE | cf::NDI_RED); 2723 cf::NDI_UNIQUE | cf::NDI_RED);
2781 2724
2782 warn "ERROR in enter_exit: $@"; 2725 warn "ERROR in enter_exit: $@";
… …
2848 id => "infobox", 2791 id => "infobox",
2849 title => "Body Parts", 2792 title => "Body Parts",
2850 reply => undef, 2793 reply => undef,
2851 tooltip => "Shows which body parts you posess and are available", 2794 tooltip => "Shows which body parts you posess and are available",
2852 }, 2795 },
2796 "c/skills" => {
2797 id => "infobox",
2798 title => "Skills",
2799 reply => undef,
2800 tooltip => "Shows your experience per skill and item power",
2801 },
2853 "c/uptime" => { 2802 "c/uptime" => {
2854 id => "infobox", 2803 id => "infobox",
2855 title => "Uptime", 2804 title => "Uptime",
2856 reply => undef, 2805 reply => undef,
2857 tooltip => "How long the server has been running since last restart", 2806 tooltip => "How long the server has been running since last restart",
… …
2871); 2820);
2872 2821
2873sub cf::client::send_msg { 2822sub cf::client::send_msg {
2874 my ($self, $channel, $msg, $color, @extra) = @_; 2823 my ($self, $channel, $msg, $color, @extra) = @_;
2875 2824
2876 $msg = $self->pl->expand_cfpod ($msg); 2825 $msg = $self->pl->expand_cfpod ($msg)
2826 unless $color & cf::NDI_VERBATIM;
2877 2827
2878 $color &= cf::NDI_CLIENT_MASK; # just in case... 2828 $color &= cf::NDI_CLIENT_MASK; # just in case...
2879 2829
2880 # check predefined channels, for the benefit of C 2830 # check predefined channels, for the benefit of C
2881 if ($CHANNEL{$channel}) { 2831 if ($CHANNEL{$channel}) {
… …
2902 if ($self->can_msg) { 2852 if ($self->can_msg) {
2903 # default colour, mask it out 2853 # default colour, mask it out
2904 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF) 2854 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2905 if $color & cf::NDI_DEF; 2855 if $color & cf::NDI_DEF;
2906 2856
2907 $self->send_packet ("msg " . $self->{json_coder}->encode ( 2857 my $pkt = "msg "
2858 . $self->{json_coder}->encode (
2908 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra])); 2859 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
2860 );
2861
2862 # try lzf for large packets
2863 $pkt = "lzf " . Compress::LZF::compress $pkt
2864 if 1024 <= length $pkt and $self->{can_lzf};
2865
2866 # split very large packets
2867 if (8192 < length $pkt and $self->{can_lzf}) {
2868 $self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
2869 $pkt = "frag";
2870 }
2871
2872 $self->send_packet ($pkt);
2909 } else { 2873 } else {
2910 if ($color >= 0) { 2874 if ($color >= 0) {
2911 # replace some tags by gcfclient-compatible ones 2875 # replace some tags by gcfclient-compatible ones
2912 for ($msg) { 2876 for ($msg) {
2913 1 while 2877 1 while
… …
3396 reload_treasures; 3360 reload_treasures;
3397 3361
3398 warn "finished reloading resource files\n"; 3362 warn "finished reloading resource files\n";
3399} 3363}
3400 3364
3401sub init {
3402 my $guard = freeze_mainloop;
3403
3404 evthread_start IO::AIO::poll_fileno;
3405
3406 reload_resources;
3407}
3408
3409sub reload_config { 3365sub reload_config {
3410 open my $fh, "<:utf8", "$CONFDIR/config" 3366 open my $fh, "<:utf8", "$CONFDIR/config"
3411 or return; 3367 or return;
3412 3368
3413 local $/; 3369 local $/;
… …
3425 }; 3381 };
3426 warn $@ if $@; 3382 warn $@ if $@;
3427 } 3383 }
3428} 3384}
3429 3385
3386sub pidfile() {
3387 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3388 or die "$PIDFILE: $!";
3389 flock $fh, &Fcntl::LOCK_EX
3390 or die "$PIDFILE: flock: $!";
3391 $fh
3392}
3393
3394# make sure only one server instance is running at any one time
3395sub atomic {
3396 my $fh = pidfile;
3397
3398 my $pid = <$fh>;
3399 kill 9, $pid if $pid > 0;
3400
3401 seek $fh, 0, 0;
3402 print $fh $$;
3403}
3404
3430sub main { 3405sub main {
3406 cf::init_globals; # initialise logging
3407
3408 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3409 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3410 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3411 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3412
3413 cf::init_experience;
3414 cf::init_anim;
3415 cf::init_attackmess;
3416 cf::init_dynamic;
3417 cf::init_block;
3418
3419 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3420
3431 # we must not ever block the main coroutine 3421 # we must not ever block the main coroutine
3432 local $Coro::idle = sub { 3422 local $Coro::idle = sub {
3433 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3423 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3434 (async { 3424 (async {
3435 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3425 $Coro::current->{desc} = "IDLE BUG HANDLER";
3436 EV::loop EV::LOOP_ONESHOT; 3426 EV::loop EV::LOOP_ONESHOT;
3437 })->prio (Coro::PRIO_MAX); 3427 })->prio (Coro::PRIO_MAX);
3438 }; 3428 };
3439 3429
3440 { 3430 evthread_start IO::AIO::poll_fileno;
3441 my $guard = freeze_mainloop; 3431
3432 cf::sync_job {
3433 reload_resources;
3442 reload_config; 3434 reload_config;
3443 db_init; 3435 db_init;
3436
3437 cf::load_settings;
3438 cf::load_materials;
3439 cf::init_uuid;
3440 cf::init_signals;
3441 cf::init_commands;
3442 cf::init_skills;
3443
3444 cf::init_beforeplay;
3445
3446 atomic;
3447
3444 load_extensions; 3448 load_extensions;
3445 3449
3446 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3450 utime time, time, $RUNTIMEFILE;
3451
3452 # no (long-running) fork's whatsoever before this point(!)
3453 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3454
3455 (pop @POST_INIT)->(0) while @POST_INIT;
3447 } 3456 };
3448 3457
3449 EV::loop; 3458 EV::loop;
3450} 3459}
3451 3460
3452############################################################################# 3461#############################################################################
… …
3461 }; 3470 };
3462 } 3471 }
3463} 3472}
3464 3473
3465sub write_runtime_sync { 3474sub write_runtime_sync {
3466 my $runtime = "$LOCALDIR/runtime";
3467
3468 # first touch the runtime file to show we are still running: 3475 # first touch the runtime file to show we are still running:
3469 # the fsync below can take a very very long time. 3476 # the fsync below can take a very very long time.
3470 3477
3471 IO::AIO::aio_utime $runtime, undef, undef; 3478 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3472 3479
3473 my $guard = cf::lock_acquire "write_runtime"; 3480 my $guard = cf::lock_acquire "write_runtime";
3474 3481
3475 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 3482 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
3476 or return; 3483 or return;
3477 3484
3478 my $value = $cf::RUNTIME + 90 + 10; 3485 my $value = $cf::RUNTIME + 90 + 10;
3479 # 10 is the runtime save interval, for a monotonic clock 3486 # 10 is the runtime save interval, for a monotonic clock
3480 # 60 allows for the watchdog to kill the server. 3487 # 60 allows for the watchdog to kill the server.
… …
3490 aio_utime $fh, undef, undef; 3497 aio_utime $fh, undef, undef;
3491 3498
3492 close $fh 3499 close $fh
3493 or return; 3500 or return;
3494 3501
3495 aio_rename "$runtime~", $runtime 3502 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3496 and return; 3503 and return;
3497 3504
3498 warn "runtime file written.\n"; 3505 warn "runtime file written.\n";
3499 3506
3500 1 3507 1
… …
3512 my $uuid = "$LOCALDIR/uuid"; 3519 my $uuid = "$LOCALDIR/uuid";
3513 3520
3514 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644 3521 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3515 or return; 3522 or return;
3516 3523
3517 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur; 3524 my $value = uuid_seq uuid_cur;
3525
3526 unless ($value) {
3527 warn "cowardly refusing to write zero uuid value!\n";
3528 return;
3529 }
3530
3531 my $value = uuid_str $value + $uuid_skip;
3518 $uuid_skip = 0; 3532 $uuid_skip = 0;
3519 3533
3520 (aio_write $fh, 0, (length $value), $value, 0) <= 0 3534 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3521 and return; 3535 and return;
3522 3536
… …
3584sub post_cleanup { 3598sub post_cleanup {
3585 my ($make_core) = @_; 3599 my ($make_core) = @_;
3586 3600
3587 warn Carp::longmess "post_cleanup backtrace" 3601 warn Carp::longmess "post_cleanup backtrace"
3588 if $make_core; 3602 if $make_core;
3603
3604 my $fh = pidfile;
3605 unlink $PIDFILE if <$fh> == $$;
3606}
3607
3608# a safer delete_package, copied from Symbol
3609sub clear_package($) {
3610 my $pkg = shift;
3611
3612 # expand to full symbol table name if needed
3613 unless ($pkg =~ /^main::.*::$/) {
3614 $pkg = "main$pkg" if $pkg =~ /^::/;
3615 $pkg = "main::$pkg" unless $pkg =~ /^main::/;
3616 $pkg .= '::' unless $pkg =~ /::$/;
3617 }
3618
3619 my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
3620 my $stem_symtab = *{$stem}{HASH};
3621
3622 defined $stem_symtab and exists $stem_symtab->{$leaf}
3623 or return;
3624
3625 # clear all symbols
3626 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3627 for my $name (keys %$leaf_symtab) {
3628 _gv_clear *{"$pkg$name"};
3629# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3630 }
3631 warn "cleared package $pkg\n";#d#
3589} 3632}
3590 3633
3591sub do_reload_perl() { 3634sub do_reload_perl() {
3592 # can/must only be called in main 3635 # can/must only be called in main
3593 if ($Coro::current != $Coro::main) { 3636 if ($Coro::current != $Coro::main) {
3594 warn "can only reload from main coroutine"; 3637 warn "can only reload from main coroutine";
3595 return; 3638 return;
3596 } 3639 }
3597 3640
3641 return if $RELOAD++;
3642
3643 while ($RELOAD) {
3598 warn "reloading..."; 3644 warn "reloading...";
3599 3645
3600 warn "entering sync_job"; 3646 warn "entering sync_job";
3601 3647
3602 cf::sync_job { 3648 cf::sync_job {
3603 cf::write_runtime_sync; # external watchdog should not bark 3649 cf::write_runtime_sync; # external watchdog should not bark
3604 cf::emergency_save; 3650 cf::emergency_save;
3605 cf::write_runtime_sync; # external watchdog should not bark 3651 cf::write_runtime_sync; # external watchdog should not bark
3606 3652
3607 warn "syncing database to disk"; 3653 warn "syncing database to disk";
3608 BDB::db_env_txn_checkpoint $DB_ENV; 3654 BDB::db_env_txn_checkpoint $DB_ENV;
3609 3655
3610 # if anything goes wrong in here, we should simply crash as we already saved 3656 # if anything goes wrong in here, we should simply crash as we already saved
3611 3657
3612 warn "flushing outstanding aio requests"; 3658 warn "flushing outstanding aio requests";
3613 for (;;) {
3614 BDB::flush;
3615 IO::AIO::flush;
3616 Coro::cede_notself;
3617 last unless IO::AIO::nreqs || BDB::nreqs; 3659 while (IO::AIO::nreqs || BDB::nreqs) {
3618 warn "iterate..."; 3660 Coro::EV::timer_once 0.01; # let the sync_job do it's thing
3619 }
3620
3621 ++$RELOAD;
3622
3623 warn "cancelling all extension coros";
3624 $_->cancel for values %EXT_CORO;
3625 %EXT_CORO = ();
3626
3627 warn "removing commands";
3628 %COMMAND = ();
3629
3630 warn "removing ext/exti commands";
3631 %EXTCMD = ();
3632 %EXTICMD = ();
3633
3634 warn "unloading/nuking all extensions";
3635 for my $pkg (@EXTS) {
3636 warn "... unloading $pkg";
3637
3638 if (my $cb = $pkg->can ("unload")) {
3639 eval {
3640 $cb->($pkg);
3641 1
3642 } or warn "$pkg unloaded, but with errors: $@";
3643 } 3661 }
3644 3662
3645 warn "... nuking $pkg"; 3663 warn "cancelling all extension coros";
3646 Symbol::delete_package $pkg; 3664 $_->cancel for values %EXT_CORO;
3647 } 3665 %EXT_CORO = ();
3648 3666
3649 warn "unloading all perl modules loaded from $LIBDIR"; 3667 warn "removing commands";
3650 while (my ($k, $v) = each %INC) { 3668 %COMMAND = ();
3651 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3652 3669
3670 warn "removing ext/exti commands";
3671 %EXTCMD = ();
3672 %EXTICMD = ();
3673
3674 warn "unloading/nuking all extensions";
3675 for my $pkg (@EXTS) {
3653 warn "... unloading $k"; 3676 warn "... unloading $pkg";
3654 delete $INC{$k};
3655 3677
3656 $k =~ s/\.pm$//;
3657 $k =~ s/\//::/g;
3658
3659 if (my $cb = $k->can ("unload_module")) { 3678 if (my $cb = $pkg->can ("unload")) {
3679 eval {
3660 $cb->(); 3680 $cb->($pkg);
3681 1
3682 } or warn "$pkg unloaded, but with errors: $@";
3683 }
3684
3685 warn "... clearing $pkg";
3686 clear_package $pkg;
3661 } 3687 }
3662 3688
3663 Symbol::delete_package $k; 3689 warn "unloading all perl modules loaded from $LIBDIR";
3690 while (my ($k, $v) = each %INC) {
3691 next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
3692
3693 warn "... unloading $k";
3694 delete $INC{$k};
3695
3696 $k =~ s/\.pm$//;
3697 $k =~ s/\//::/g;
3698
3699 if (my $cb = $k->can ("unload_module")) {
3700 $cb->();
3701 }
3702
3703 clear_package $k;
3664 } 3704 }
3665 3705
3666 warn "getting rid of safe::, as good as possible"; 3706 warn "getting rid of safe::, as good as possible";
3667 Symbol::delete_package "safe::$_" 3707 clear_package "safe::$_"
3668 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3708 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3669 3709
3670 warn "unloading cf.pm \"a bit\""; 3710 warn "unloading cf.pm \"a bit\"";
3671 delete $INC{"cf.pm"}; 3711 delete $INC{"cf.pm"};
3672 delete $INC{"cf/pod.pm"}; 3712 delete $INC{"cf/pod.pm"};
3673 3713
3674 # don't, removes xs symbols, too, 3714 # don't, removes xs symbols, too,
3675 # and global variables created in xs 3715 # and global variables created in xs
3676 #Symbol::delete_package __PACKAGE__; 3716 #clear_package __PACKAGE__;
3677 3717
3678 warn "unload completed, starting to reload now"; 3718 warn "unload completed, starting to reload now";
3679 3719
3680 warn "reloading cf.pm"; 3720 warn "reloading cf.pm";
3681 require cf; 3721 require cf;
3682 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt 3722 cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
3683 3723
3684 warn "loading config and database again"; 3724 warn "loading config and database again";
3685 cf::reload_config; 3725 cf::reload_config;
3686 3726
3687 warn "loading extensions"; 3727 warn "loading extensions";
3688 cf::load_extensions; 3728 cf::load_extensions;
3689 3729
3690 warn "reattaching attachments to objects/players"; 3730 warn "reattaching attachments to objects/players";
3691 _global_reattach; # objects, sockets 3731 _global_reattach; # objects, sockets
3692 warn "reattaching attachments to maps"; 3732 warn "reattaching attachments to maps";
3693 reattach $_ for values %MAP; 3733 reattach $_ for values %MAP;
3694 warn "reattaching attachments to players"; 3734 warn "reattaching attachments to players";
3695 reattach $_ for values %PLAYER; 3735 reattach $_ for values %PLAYER;
3696 3736
3737 warn "running post_load";
3738 (pop @POST_INIT)->(1) while @POST_INIT;
3739
3697 warn "leaving sync_job"; 3740 warn "leaving sync_job";
3698 3741
3699 1 3742 1
3700 } or do { 3743 } or do {
3701 warn $@; 3744 warn $@;
3702 cf::cleanup "error while reloading, exiting."; 3745 cf::cleanup "error while reloading, exiting.";
3703 }; 3746 };
3704 3747
3705 warn "reloaded"; 3748 warn "reloaded";
3749 --$RELOAD;
3750 }
3706}; 3751};
3707 3752
3708our $RELOAD_WATCHER; # used only during reload 3753our $RELOAD_WATCHER; # used only during reload
3709 3754
3710sub reload_perl() { 3755sub reload_perl() {
3711 # doing reload synchronously and two reloads happen back-to-back, 3756 # doing reload synchronously and two reloads happen back-to-back,
3712 # coro crashes during coro_state_free->destroy here. 3757 # coro crashes during coro_state_free->destroy here.
3713 3758
3714 $RELOAD_WATCHER ||= EV::timer 0, 0, sub { 3759 $RELOAD_WATCHER ||= EV::timer $TICK * 1.5, 0, sub {
3715 do_reload_perl; 3760 do_reload_perl;
3716 undef $RELOAD_WATCHER; 3761 undef $RELOAD_WATCHER;
3717 }; 3762 };
3718} 3763}
3719 3764
… …
3847 $msg =~ s/\n//; 3892 $msg =~ s/\n//;
3848 3893
3849 # limit the # of concurrent backtraces 3894 # limit the # of concurrent backtraces
3850 if ($_log_backtrace < 2) { 3895 if ($_log_backtrace < 2) {
3851 ++$_log_backtrace; 3896 ++$_log_backtrace;
3897 my $perl_bt = Carp::longmess $msg;
3852 async { 3898 async {
3853 $Coro::current->{desc} = "abt $msg"; 3899 $Coro::current->{desc} = "abt $msg";
3854 3900
3855 my @bt = fork_call { 3901 my @bt = fork_call {
3856 @addr = map { sprintf "%x", $_ } @addr; 3902 @addr = map { sprintf "%x", $_ } @addr;
… …
3867 } 3913 }
3868 3914
3869 @funcs 3915 @funcs
3870 }; 3916 };
3871 3917
3872 LOG llevInfo, "[ABT] $msg\n"; 3918 LOG llevInfo, "[ABT] $perl_bt\n";
3919 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3873 LOG llevInfo, "[ABT] $_\n" for @bt; 3920 LOG llevInfo, "[ABT] $_\n" for @bt;
3874 --$_log_backtrace; 3921 --$_log_backtrace;
3875 }; 3922 };
3876 } else { 3923 } else {
3877 LOG llevInfo, "[ABT] $msg\n"; 3924 LOG llevInfo, "[ABT] $msg\n";

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