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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.222 by root, Tue Mar 6 03:06:00 2007 UTC vs.
Revision 1.254 by root, Thu Apr 19 11:12:45 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 3.5 (); 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
20use BDB (); 25use BDB ();
21use Data::Dumper; 26use Data::Dumper;
22use Digest::MD5; 27use Digest::MD5;
23use Fcntl; 28use Fcntl;
29use YAML::Syck ();
24use IO::AIO 2.32 (); 30use IO::AIO 2.32 ();
25use YAML::Syck ();
26use Time::HiRes; 31use Time::HiRes;
27use Compress::LZF; 32use Compress::LZF;
28 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
29Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 38Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30 39
31use 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
32
33sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34 41
35# 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?
36$YAML::Syck::ImplicitUnicode = 1; 43$YAML::Syck::ImplicitUnicode = 1;
37 44
38$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 45$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
39 48
40our %COMMAND = (); 49our %COMMAND = ();
41our %COMMAND_TIME = (); 50our %COMMAND_TIME = ();
42 51
43our @EXTS = (); # list of extension package names 52our @EXTS = (); # list of extension package names
44our %EXTCMD = (); 53our %EXTCMD = ();
45our %EXT_CORO = (); # coroutines bound to extensions 54our %EXT_CORO = (); # coroutines bound to extensions
46our %EXT_MAP = (); # pluggable maps 55our %EXT_MAP = (); # pluggable maps
47 56
57our $RELOAD; # number of reloads so far
48our @EVENT; 58our @EVENT;
49our $LIBDIR = datadir . "/ext";
50 59
51our $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(!)
52our $TICK_WATCHER; 73our $TICK_WATCHER;
53our $AIO_POLL_WATCHER; 74our $AIO_POLL_WATCHER;
54our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 75our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55our $NEXT_TICK; 76our $NEXT_TICK;
56our $NOW; 77our $NOW;
65our $RUNTIME; 86our $RUNTIME;
66 87
67our %PLAYER; # all users 88our %PLAYER; # all users
68our %MAP; # all maps 89our %MAP; # all maps
69our $LINK_MAP; # the special {link} map, which is always available 90our $LINK_MAP; # the special {link} map, which is always available
70our $RANDOM_MAPS = cf::localdir . "/random";
71our $BDB_ENV_DIR = cf::localdir . "/db";
72
73our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75 91
76# 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 ∕
77our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 93our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78 94
79binmode STDOUT; 95binmode STDOUT;
80binmode STDERR; 96binmode STDERR;
81 97
82# read virtual server time, if available 98# read virtual server time, if available
83unless ($RUNTIME || !-e cf::localdir . "/runtime") { 99unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84 open my $fh, "<", cf::localdir . "/runtime" 100 open my $fh, "<", "$LOCALDIR/runtime"
85 or die "unable to read runtime file: $!"; 101 or die "unable to read runtime file: $!";
86 $RUNTIME = <$fh> + 0.; 102 $RUNTIME = <$fh> + 0.;
87} 103}
88 104
89mkdir cf::localdir; 105mkdir $_
90mkdir cf::localdir . "/" . cf::playerdir; 106 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91mkdir cf::localdir . "/" . cf::tmpdir;
92mkdir cf::localdir . "/" . cf::uniquedir;
93mkdir $RANDOM_MAPS;
94mkdir $BDB_ENV_DIR;
95 107
96our $EMERGENCY_POSITION; 108our $EMERGENCY_POSITION;
97 109
98sub cf::map::normalise; 110sub cf::map::normalise;
99 111
110=item $cf::RUNTIME 122=item $cf::RUNTIME
111 123
112The time this server has run, starts at 0 and is increased by $cf::TICK on 124The time this server has run, starts at 0 and is increased by $cf::TICK on
113every server tick. 125every server tick.
114 126
115=item $cf::LIBDIR 127=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
128$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
129$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116 130
117The perl library directory, where extensions and cf-specific modules can 131Various directories - "/etc", read-only install directory, perl-library
118be found. It will be added to C<@INC> automatically. 132directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
133unique-items directory, player file directory, random maps directory and
134database environment.
119 135
120=item $cf::NOW 136=item $cf::NOW
121 137
122The time of the last (current) server tick. 138The time of the last (current) server tick.
123 139
128=item %cf::CFG 144=item %cf::CFG
129 145
130Configuration for the server, loaded from C</etc/crossfire/config>, or 146Configuration for the server, loaded from C</etc/crossfire/config>, or
131from wherever your confdir points to. 147from wherever your confdir points to.
132 148
133=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE 149=item cf::wait_for_tick, cf::wait_for_tick_begin
134 150
135These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK) 151These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick 152returns directly I<after> the tick processing (and consequently, can only wake one process
137processing has been done. Call C<< ->wait >> on them to maximise the 153per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138window of cpu time available, or simply to synchronise to the server tick.
139 154
140=back 155=back
141 156
142=cut 157=cut
143 158
144BEGIN { 159BEGIN {
145 *CORE::GLOBAL::warn = sub { 160 *CORE::GLOBAL::warn = sub {
146 my $msg = join "", @_; 161 my $msg = join "", @_;
147 utf8::encode $msg;
148 162
149 $msg .= "\n" 163 $msg .= "\n"
150 unless $msg =~ /\n$/; 164 unless $msg =~ /\n$/;
151 165
166 $msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167
168 utf8::encode $msg;
152 LOG llevError, $msg; 169 LOG llevError, $msg;
153 }; 170 };
154} 171}
155 172
156@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 173@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
202 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; 219 $d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203 $d 220 $d
204 } || "[unable to dump $_[0]: '$@']"; 221 } || "[unable to dump $_[0]: '$@']";
205} 222}
206 223
207use JSON::Syck (); # TODO# replace by JSON::PC once working 224use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
208 225
209=item $ref = cf::from_json $json 226=item $ref = cf::from_json $json
210 227
211Converts a JSON string into the corresponding perl data structure. 228Converts a JSON string into the corresponding perl data structure.
212 229
213=cut
214
215sub from_json($) {
216 $JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217 JSON::Syck::Load $_[0]
218}
219
220=item $json = cf::to_json $ref 230=item $json = cf::to_json $ref
221 231
222Converts a perl data structure into its JSON representation. 232Converts a perl data structure into its JSON representation.
223
224=cut
225
226sub to_json($) {
227 $JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
228 JSON::Syck::Dump $_[0]
229}
230 233
231=item cf::lock_wait $string 234=item cf::lock_wait $string
232 235
233Wait until the given lock is available. See cf::lock_acquire. 236Wait until the given lock is available. See cf::lock_acquire.
234 237
240returned. 243returned.
241 244
242Lock names should begin with a unique identifier (for example, cf::map::find 245Lock names should begin with a unique identifier (for example, cf::map::find
243uses map_find and cf::map::load uses map_load). 246uses map_find and cf::map::load uses map_load).
244 247
248=item $locked = cf::lock_active $string
249
250Return true if the lock is currently active, i.e. somebody has locked it.
251
245=cut 252=cut
246 253
247our %LOCK; 254our %LOCK;
248 255
249sub lock_wait($) { 256sub lock_wait($) {
266 273
267 Coro::guard { 274 Coro::guard {
268 # wake up all waiters, to be on the safe side 275 # wake up all waiters, to be on the safe side
269 $_->ready for @{ delete $LOCK{$key} }; 276 $_->ready for @{ delete $LOCK{$key} };
270 } 277 }
278}
279
280sub lock_active($) {
281 my ($key) = @_;
282
283 ! ! $LOCK{$key}
271} 284}
272 285
273sub freeze_mainloop { 286sub freeze_mainloop {
274 return unless $TICK_WATCHER->is_active; 287 return unless $TICK_WATCHER->is_active;
275 288
356} 369}
357 370
358sub write_runtime { 371sub write_runtime {
359 my $guard = cf::lock_acquire "write_runtime"; 372 my $guard = cf::lock_acquire "write_runtime";
360 373
361 my $runtime = cf::localdir . "/runtime"; 374 my $runtime = "$LOCALDIR/runtime";
362 375
363 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 376 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
364 or return; 377 or return;
365 378
366 my $value = $cf::RUNTIME + 90 + 10; 379 my $value = $cf::RUNTIME + 90 + 10;
379 392
380 aio_rename "$runtime~", $runtime 393 aio_rename "$runtime~", $runtime
381 and return; 394 and return;
382 395
383 1 396 1
397}
398
399=item cf::datalog type => key => value, ...
400
401Log a datalog packet of the given type with the given key-value pairs.
402
403=cut
404
405sub datalog($@) {
406 my ($type, %kv) = @_;
407 warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
384} 408}
385 409
386=back 410=back
387 411
388=cut 412=cut
950Returns the given player object, loading it if necessary (might block). 974Returns the given player object, loading it if necessary (might block).
951 975
952=cut 976=cut
953 977
954sub playerdir($) { 978sub playerdir($) {
955 cf::localdir 979 "$PLAYERDIR/"
956 . "/"
957 . cf::playerdir
958 . "/"
959 . (ref $_[0] ? $_[0]->ob->name : $_[0]) 980 . (ref $_[0] ? $_[0]->ob->name : $_[0])
960} 981}
961 982
962sub path($) { 983sub path($) {
963 my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; 984 my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964 985
965 (playerdir $login) . "/$login.pl" 986 (playerdir $login) . "/playerdata"
966} 987}
967 988
968sub find_active($) { 989sub find_active($) {
969 $cf::PLAYER{$_[0]} 990 $cf::PLAYER{$_[0]}
970 and $cf::PLAYER{$_[0]}->active 991 and $cf::PLAYER{$_[0]}->active
983 my $login = $_[0]; 1004 my $login = $_[0];
984 1005
985 my $guard = cf::lock_acquire "user_find:$login"; 1006 my $guard = cf::lock_acquire "user_find:$login";
986 1007
987 $cf::PLAYER{$_[0]} || do { 1008 $cf::PLAYER{$_[0]} || do {
1009 # rename old playerfiles to new ones
1010 #TODO: remove when no longer required
1011 aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012 aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013 aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014 aio_unlink +(playerdir $login) . "/$login.pl";
1015
988 my $pl = load_pl path $login 1016 my $pl = load_pl path $login
989 or return; 1017 or return;
990 $cf::PLAYER{$login} = $pl 1018 $cf::PLAYER{$login} = $pl
991 } 1019 }
992 } 1020 }
1076while and may block, so not sync_job-capable, ever. 1104while and may block, so not sync_job-capable, ever.
1077 1105
1078=cut 1106=cut
1079 1107
1080sub list_logins { 1108sub list_logins {
1081 my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir 1109 my $dirs = aio_readdir $PLAYERDIR
1082 or return []; 1110 or return [];
1083 1111
1084 my @logins; 1112 my @logins;
1085 1113
1086 for my $login (@$dirs) { 1114 for my $login (@$dirs) {
1121 } 1149 }
1122 1150
1123 \@paths 1151 \@paths
1124} 1152}
1125 1153
1126=item $player->ext_reply ($msgid, $msgtype, %msg) 1154=item $player->ext_reply ($msgid, %msg)
1127 1155
1128Sends an ext reply to the player. 1156Sends an ext reply to the player.
1129 1157
1130=cut 1158=cut
1131 1159
1132sub ext_reply($$$%) { 1160sub ext_reply($$%) {
1133 my ($self, $id, %msg) = @_; 1161 my ($self, $id, %msg) = @_;
1134 1162
1135 $msg{msgid} = $id; 1163 $msg{msgid} = $id;
1136 1164
1137 $self->send ("ext " . cf::to_json \%msg); 1165 $self->send ("ext " . cf::to_json \%msg);
1138} 1166}
1139 1167
1140package cf; 1168=item $player->ext_event ($type, %msg)
1169
1170Sends an ext event to the client.
1171
1172=cut
1173
1174sub ext_event($$%) {
1175 my ($self, $type, %msg) = @_;
1176
1177 $self->ns->ext_event ($type, %msg);
1178}
1179
1180=head3 cf::region
1181
1182=over 4
1183
1184=cut
1185
1186package cf::region;
1187
1188=item cf::region::find_by_path $path
1189
1190Tries to decuce the probable region for a map knowing only its path.
1191
1192=cut
1193
1194sub find_by_path($) {
1195 my ($path) = @_;
1196
1197 my ($match, $specificity);
1198
1199 for my $region (list) {
1200 if ($region->match && $path =~ $region->match) {
1201 ($match, $specificity) = ($region, $region->specificity)
1202 if $region->specificity > $specificity;
1203 }
1204 }
1205
1206 $match
1207}
1141 1208
1142=back 1209=back
1143
1144 1210
1145=head3 cf::map 1211=head3 cf::map
1146 1212
1147=over 4 1213=over 4
1148 1214
1286 1352
1287# the original (read-only) location 1353# the original (read-only) location
1288sub load_path { 1354sub load_path {
1289 my ($self) = @_; 1355 my ($self) = @_;
1290 1356
1291 sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path} 1357 "$MAPDIR/$self->{path}.map"
1292} 1358}
1293 1359
1294# the temporary/swap location 1360# the temporary/swap location
1295sub save_path { 1361sub save_path {
1296 my ($self) = @_; 1362 my ($self) = @_;
1297 1363
1298 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1364 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1299 sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path 1365 "$TMPDIR/$path.map"
1300} 1366}
1301 1367
1302# the unique path, undef == no special unique path 1368# the unique path, undef == no special unique path
1303sub uniq_path { 1369sub uniq_path {
1304 my ($self) = @_; 1370 my ($self) = @_;
1305 1371
1306 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1372 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1307 sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path 1373 "$UNIQUEDIR/$path"
1308} 1374}
1309 1375
1310# and all this just because we cannot iterate over 1376# and all this just because we cannot iterate over
1311# all maps in C++... 1377# all maps in C++...
1312sub change_all_map_light { 1378sub change_all_map_light {
1379 $self->load_header_orig 1445 $self->load_header_orig
1380 or return; 1446 or return;
1381 $self->prepare_orig; 1447 $self->prepare_orig;
1382 } 1448 }
1383 1449
1450 $self->default_region (cf::region::find_by_path $self->{path})
1451 unless $self->default_region;
1452
1384 1 1453 1
1385} 1454}
1386 1455
1387sub find; 1456sub find;
1388sub find { 1457sub find {
1430 $self->in_memory (cf::MAP_LOADING); 1499 $self->in_memory (cf::MAP_LOADING);
1431 1500
1432 $self->alloc; 1501 $self->alloc;
1433 1502
1434 $self->pre_load; 1503 $self->pre_load;
1504 Coro::cede;
1435 1505
1436 $self->_load_objects ($self->{load_path}, 1) 1506 $self->_load_objects ($self->{load_path}, 1)
1437 or return; 1507 or return;
1438 1508
1439 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) 1509 $self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1446 $self->_load_objects ($uniq, 0); 1516 $self->_load_objects ($uniq, 0);
1447 } 1517 }
1448 } 1518 }
1449 1519
1450 Coro::cede; 1520 Coro::cede;
1451
1452 # now do the right thing for maps 1521 # now do the right thing for maps
1453 $self->link_multipart_objects; 1522 $self->link_multipart_objects;
1523 Coro::cede;
1454 1524
1455 unless ($self->{deny_activate}) { 1525 unless ($self->{deny_activate}) {
1456 $self->decay_objects; 1526 $self->decay_objects;
1457 $self->fix_auto_apply; 1527 $self->fix_auto_apply;
1458 $self->update_buttons; 1528 $self->update_buttons;
1460 $self->set_darkness_map; 1530 $self->set_darkness_map;
1461 $self->difficulty ($self->estimate_difficulty) 1531 $self->difficulty ($self->estimate_difficulty)
1462 unless $self->difficulty; 1532 unless $self->difficulty;
1463 Coro::cede; 1533 Coro::cede;
1464 $self->activate; 1534 $self->activate;
1535 Coro::cede;
1465 } 1536 }
1466 1537
1467 $self->post_load; 1538 $self->post_load;
1539 Coro::cede;
1468 1540
1469 $self->in_memory (cf::MAP_IN_MEMORY); 1541 $self->in_memory (cf::MAP_IN_MEMORY);
1470} 1542}
1471 1543
1472sub customise_for { 1544sub customise_for {
1665instantiated unique items. May block. 1737instantiated unique items. May block.
1666 1738
1667=cut 1739=cut
1668 1740
1669sub unique_maps() { 1741sub unique_maps() {
1670 my $files = aio_readdir cf::localdir . "/" . cf::uniquedir 1742 my $files = aio_readdir $UNIQUEDIR
1671 or return; 1743 or return;
1672 1744
1673 my @paths; 1745 my @paths;
1674 1746
1675 for (@$files) { 1747 for (@$files) {
1931 2003
1932 $rmp->{random_seed} ||= $exit->random_seed; 2004 $rmp->{random_seed} ||= $exit->random_seed;
1933 2005
1934 my $data = cf::to_json $rmp; 2006 my $data = cf::to_json $rmp;
1935 my $md5 = Digest::MD5::md5_hex $data; 2007 my $md5 = Digest::MD5::md5_hex $data;
1936 my $meta = "$cf::RANDOM_MAPS/$md5.meta"; 2008 my $meta = "$RANDOMDIR/$md5.meta";
1937 2009
1938 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) { 2010 if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1939 aio_write $fh, 0, (length $data), $data, 0; 2011 aio_write $fh, 0, (length $data), $data, 0;
1940 undef $fh; 2012 undef $fh;
1941 aio_rename "$meta~", $meta; 2013 aio_rename "$meta~", $meta;
1950 2022
1951 return unless $self->type == cf::PLAYER; 2023 return unless $self->type == cf::PLAYER;
1952 2024
1953 if ($exit->slaying eq "/!") { 2025 if ($exit->slaying eq "/!") {
1954 #TODO: this should de-fi-ni-te-ly not be a sync-job 2026 #TODO: this should de-fi-ni-te-ly not be a sync-job
2027 # the problem is that $exit might not survive long enough
2028 # so it needs to be done right now, right here
1955 cf::sync_job { prepare_random_map $exit }; 2029 cf::sync_job { prepare_random_map $exit };
1956 } 2030 }
1957 2031
1958 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path; 2032 my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1959 my $hp = $exit->stats->hp; 2033 my $hp = $exit->stats->hp;
1967 $self->goto ($slaying, $hp, $sp); 2041 $self->goto ($slaying, $hp, $sp);
1968 2042
1969 1; 2043 1;
1970 }) { 2044 }) {
1971 $self->message ("Something went wrong deep within the crossfire server. " 2045 $self->message ("Something went wrong deep within the crossfire server. "
1972 . "I'll try to bring you back to the map you were before. " 2046 . "I'll try to bring you back to the map you were before. "
1973 . "Please report this to the dungeon master!", 2047 . "Please report this to the dungeon master!",
1974 cf::NDI_UNIQUE | cf::NDI_RED); 2048 cf::NDI_UNIQUE | cf::NDI_RED);
1975 2049
1976 warn "ERROR in enter_exit: $@"; 2050 warn "ERROR in enter_exit: $@";
1977 $self->leave_link; 2051 $self->leave_link;
1978 } 2052 }
1979 })->prio (1); 2053 })->prio (1);
1992 2066
1993sub cf::client::send_drawinfo { 2067sub cf::client::send_drawinfo {
1994 my ($self, $text, $flags) = @_; 2068 my ($self, $text, $flags) = @_;
1995 2069
1996 utf8::encode $text; 2070 utf8::encode $text;
1997 $self->send_packet (sprintf "drawinfo %d %s", $flags, $text); 2071 $self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1998} 2072}
1999 2073
2074=item $client->ext_event ($type, %msg)
2075
2076Sends an exti event to the client.
2077
2078=cut
2079
2080sub cf::client::ext_event($$%) {
2081 my ($self, $type, %msg) = @_;
2082
2083 $msg{msgtype} = "event_$type";
2084 $self->send_packet ("ext " . cf::to_json \%msg);
2085}
2000 2086
2001=item $success = $client->query ($flags, "text", \&cb) 2087=item $success = $client->query ($flags, "text", \&cb)
2002 2088
2003Queues a query to the client, calling the given callback with 2089Queues a query to the client, calling the given callback with
2004the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, 2090the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2101 2187
2102# here we export the classes and methods available to script code 2188# here we export the classes and methods available to script code
2103 2189
2104=pod 2190=pod
2105 2191
2106The following fucntions and emthods are available within a safe environment: 2192The following functions and methods are available within a safe environment:
2107 2193
2108 cf::object contr pay_amount pay_player map 2194 cf::object contr pay_amount pay_player map
2109 cf::object::player player 2195 cf::object::player player
2110 cf::player peaceful 2196 cf::player peaceful
2111 cf::map trigger 2197 cf::map trigger
2196############################################################################# 2282#############################################################################
2197 2283
2198=head2 EXTENSION DATABASE SUPPORT 2284=head2 EXTENSION DATABASE SUPPORT
2199 2285
2200Crossfire maintains a very simple database for extension use. It can 2286Crossfire maintains a very simple database for extension use. It can
2201currently store anything that can be serialised using Storable, which 2287currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2202excludes objects. 2288convert to/from binary).
2203 2289
2204The parameter C<$family> should best start with the name of the extension 2290The parameter C<$family> should best start with the name of the extension
2205using it, it should be unique. 2291using it, it should be unique.
2206 2292
2207=over 4 2293=over 4
2230 BDB::CREATE | BDB::AUTO_COMMIT, 0666; 2316 BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2231 cf::cleanup "db_open(db): $!" if $!; 2317 cf::cleanup "db_open(db): $!" if $!;
2232 }; 2318 };
2233 cf::cleanup "db_open(db): $@" if $@; 2319 cf::cleanup "db_open(db): $@" if $@;
2234 }; 2320 };
2235
2236 my $path = cf::localdir . "/database.pst";
2237 if (stat $path) {
2238 cf::sync_job {
2239 my $pst = Storable::retrieve $path;
2240
2241 cf::db_put (board => data => $pst->{board});
2242 cf::db_put (guildrules => data => $pst->{guildrules});
2243 cf::db_put (rent => balance => $pst->{rent}{balance});
2244 BDB::db_env_txn_checkpoint $DB_ENV;
2245
2246 unlink $path;
2247 };
2248 }
2249 } 2321 }
2250} 2322}
2251 2323
2252sub db_get($$) { 2324sub db_get($$) {
2253 my $key = "$_[0]/$_[1]"; 2325 my $key = "$_[0]/$_[1]";
2254 2326
2255 cf::sync_job { 2327 cf::sync_job {
2256 BDB::db_get $DB, undef, $key, my $data; 2328 BDB::db_get $DB, undef, $key, my $data;
2257 2329
2258 $! ? () 2330 $! ? ()
2259 : Compress::LZF::sthaw $data 2331 : $data
2260 } 2332 }
2261} 2333}
2262 2334
2263sub db_put($$$) { 2335sub db_put($$$) {
2264 BDB::dbreq_pri 4; 2336 BDB::dbreq_pri 4;
2265 BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { }; 2337 BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2266} 2338}
2339
2340=item cf::cache $id => [$paths...], $processversion => $process
2341
2342Generic caching function that returns the value of the resource $id,
2343caching and regenerating as required.
2344
2345This function can block.
2346
2347=cut
2348
2349sub cache {
2350 my ($id, $src, $processversion, $process) = @_;
2351
2352 my $meta =
2353 join "\x00",
2354 $processversion,
2355 map {
2356 aio_stat $_
2357 and Carp::croak "$_: $!";
2358
2359 ($_, (stat _)[7,9])
2360 } @$src;
2361
2362 my $dbmeta = db_get cache => "$id/meta";
2363 if ($dbmeta ne $meta) {
2364 # changed, we may need to process
2365
2366 my @data;
2367 my $md5;
2368
2369 for (0 .. $#$src) {
2370 0 <= aio_load $src->[$_], $data[$_]
2371 or Carp::croak "$src->[$_]: $!";
2372 }
2373
2374 # if processing is expensive, check
2375 # checksum first
2376 if (1) {
2377 $md5 =
2378 join "\x00",
2379 $processversion,
2380 map {
2381 Coro::cede;
2382 ($src->[$_], Digest::MD5::md5_hex $data[$_])
2383 } 0.. $#$src;
2384
2385
2386 my $dbmd5 = db_get cache => "$id/md5";
2387 if ($dbmd5 eq $md5) {
2388 db_put cache => "$id/meta", $meta;
2389
2390 return db_get cache => "$id/data";
2391 }
2392 }
2393
2394 my $t1 = Time::HiRes::time;
2395 my $data = $process->(\@data);
2396 my $t2 = Time::HiRes::time;
2397
2398 warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2399
2400 db_put cache => "$id/data", $data;
2401 db_put cache => "$id/md5" , $md5;
2402 db_put cache => "$id/meta", $meta;
2403
2404 return $data;
2405 }
2406
2407 db_get cache => "$id/data"
2408}
2409
2410=item fork_call { }, $args
2411
2412Executes the given code block with the given arguments in a seperate
2413process, returning the results. Everything must be serialisable with
2414Coro::Storable. May, of course, block. Note that the executed sub may
2415never block itself or use any form of Event handling.
2416
2417=cut
2418
2419sub fork_call(&@) {
2420 my ($cb, @args) = @_;
2421
2422# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2423# or die "socketpair: $!";
2424 pipe my $fh1, my $fh2
2425 or die "pipe: $!";
2426
2427 if (my $pid = fork) {
2428 close $fh2;
2429
2430 my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2431 $res = Coro::Storable::thaw $res;
2432
2433 waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2434
2435 die $$res unless "ARRAY" eq ref $res;
2436
2437 return wantarray ? @$res : $res->[-1];
2438 } else {
2439 local $SIG{__WARN__};
2440 eval {
2441 local $SIG{__DIE__};
2442 close $fh1;
2443
2444 my @res = eval { $cb->(@args) };
2445 syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2446 };
2447
2448 warn $@ if $@;
2449 _exit 0;
2450 }
2451}
2452
2453
2267 2454
2268############################################################################# 2455#############################################################################
2269# the server's init and main functions 2456# the server's init and main functions
2270 2457
2271sub init_resources { 2458sub load_facedata($) {
2272 load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir 2459 my ($path) = @_;
2460
2461 warn "loading facedata from $path\n";
2462
2463 my $facedata;
2464 0 < aio_load $path, $facedata
2465 or die "$path: $!";
2466
2467 $facedata = Coro::Storable::thaw $facedata;
2468
2469 $facedata->{version} == 2
2470 or cf::cleanup "$path: version mismatch, cannot proceed.";
2471
2472 {
2473 my $faces = $facedata->{faceinfo};
2474
2475 while (my ($face, $info) = each %$faces) {
2476 my $idx = (cf::face::find $face) || cf::face::alloc $face;
2477 cf::face::set $idx, $info->{visibility}, $info->{magicmap};
2478 cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
2479 cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
2480 Coro::cede;
2481 }
2482
2483 while (my ($face, $info) = each %$faces) {
2484 next unless $info->{smooth};
2485 my $idx = cf::face::find $face
2486 or next;
2487 if (my $smooth = cf::face::find $info->{smooth}) {
2488 cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};
2489 } else {
2490 warn "smooth face '$info->{smooth}' not found for face '$face'";
2491 }
2492 Coro::cede;
2493 }
2494 }
2495
2496 {
2497 my $anims = $facedata->{animinfo};
2498
2499 while (my ($anim, $info) = each %$anims) {
2500 cf::anim::set $anim, $info->{frames}, $info->{facings};
2501 Coro::cede;
2502 }
2503
2504 cf::anim::invalidate_all; # d'oh
2505 }
2506
2507 1
2508}
2509
2510sub reload_regions {
2511 load_resource_file "$MAPDIR/regions"
2273 or die "unable to load regions file\n";#d# 2512 or die "unable to load regions file\n";
2513}
2514
2515sub reload_facedata {
2516 load_facedata "$DATADIR/facedata"
2517 or die "unable to load facedata\n";
2518}
2519
2520sub reload_archetypes {
2521 load_resource_file "$DATADIR/archetypes"
2522 or die "unable to load archetypes\n";
2523}
2524
2525sub reload_treasures {
2526 load_resource_file "$DATADIR/treasures"
2527 or die "unable to load treasurelists\n";
2528}
2529
2530sub reload_resources {
2531 warn "reloading resource files...\n";
2532
2533 reload_regions;
2534 reload_facedata;
2535 reload_archetypes;
2536 reload_treasures;
2537
2538 warn "finished reloading resource files\n";
2539}
2540
2541sub init {
2542 reload_resources;
2274} 2543}
2275 2544
2276sub cfg_load { 2545sub cfg_load {
2277 open my $fh, "<:utf8", cf::confdir . "/config" 2546 open my $fh, "<:utf8", "$CONFDIR/config"
2278 or return; 2547 or return;
2279 2548
2280 local $/; 2549 local $/;
2281 *CFG = YAML::Syck::Load <$fh>; 2550 *CFG = YAML::Syck::Load <$fh>;
2282 2551
2290 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" 2559 $CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2291 and die "WARNING: m(un)lockall failed: $!\n"; 2560 and die "WARNING: m(un)lockall failed: $!\n";
2292 }; 2561 };
2293 warn $@ if $@; 2562 warn $@ if $@;
2294 } 2563 }
2295}
2296
2297sub init {
2298 init_resources;
2299} 2564}
2300 2565
2301sub main { 2566sub main {
2302 # we must not ever block the main coroutine 2567 # we must not ever block the main coroutine
2303 local $Coro::idle = sub { 2568 local $Coro::idle = sub {
2371 2636
2372 warn Carp::longmess "post_cleanup backtrace" 2637 warn Carp::longmess "post_cleanup backtrace"
2373 if $make_core; 2638 if $make_core;
2374} 2639}
2375 2640
2376sub reload() { 2641sub do_reload_perl() {
2377 # can/must only be called in main 2642 # can/must only be called in main
2378 if ($Coro::current != $Coro::main) { 2643 if ($Coro::current != $Coro::main) {
2379 warn "can only reload from main coroutine"; 2644 warn "can only reload from main coroutine";
2380 return; 2645 return;
2381 } 2646 }
2406 Coro::cede; 2671 Coro::cede;
2407 last unless IO::AIO::nreqs || BDB::nreqs; 2672 last unless IO::AIO::nreqs || BDB::nreqs;
2408 warn "iterate..."; 2673 warn "iterate...";
2409 } 2674 }
2410 2675
2676 ++$RELOAD;
2677
2411 warn "cancelling all extension coros"; 2678 warn "cancelling all extension coros";
2412 $_->cancel for values %EXT_CORO; 2679 $_->cancel for values %EXT_CORO;
2413 %EXT_CORO = (); 2680 %EXT_CORO = ();
2414 2681
2415 warn "removing commands"; 2682 warn "removing commands";
2454 Symbol::delete_package "safe::$_" 2721 Symbol::delete_package "safe::$_"
2455 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 2722 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2456 2723
2457 warn "unloading cf.pm \"a bit\""; 2724 warn "unloading cf.pm \"a bit\"";
2458 delete $INC{"cf.pm"}; 2725 delete $INC{"cf.pm"};
2726 delete $INC{"cf/pod.pm"};
2459 2727
2460 # don't, removes xs symbols, too, 2728 # don't, removes xs symbols, too,
2461 # and global variables created in xs 2729 # and global variables created in xs
2462 #Symbol::delete_package __PACKAGE__; 2730 #Symbol::delete_package __PACKAGE__;
2463 2731
2478 warn "reattaching attachments to maps"; 2746 warn "reattaching attachments to maps";
2479 reattach $_ for values %MAP; 2747 reattach $_ for values %MAP;
2480 warn "reattaching attachments to players"; 2748 warn "reattaching attachments to players";
2481 reattach $_ for values %PLAYER; 2749 reattach $_ for values %PLAYER;
2482 2750
2483 warn "loading reloadable resources";
2484 init_resources;
2485
2486 warn "leaving sync_job"; 2751 warn "leaving sync_job";
2487 2752
2488 1 2753 1
2489 } or do { 2754 } or do {
2490 warn $@; 2755 warn $@;
2495 warn "reloaded"; 2760 warn "reloaded";
2496}; 2761};
2497 2762
2498our $RELOAD_WATCHER; # used only during reload 2763our $RELOAD_WATCHER; # used only during reload
2499 2764
2765sub reload_perl() {
2766 # doing reload synchronously and two reloads happen back-to-back,
2767 # coro crashes during coro_state_free->destroy here.
2768
2769 $RELOAD_WATCHER ||= Event->timer (
2770 reentrant => 0,
2771 after => 0,
2772 data => WF_AUTOCANCEL,
2773 cb => sub {
2774 do_reload_perl;
2775 undef $RELOAD_WATCHER;
2776 },
2777 );
2778}
2779
2500register_command "reload" => sub { 2780register_command "reload" => sub {
2501 my ($who, $arg) = @_; 2781 my ($who, $arg) = @_;
2502 2782
2503 if ($who->flag (FLAG_WIZ)) { 2783 if ($who->flag (FLAG_WIZ)) {
2504 $who->message ("reloading server."); 2784 $who->message ("reloading server.");
2505 2785 async { reload_perl };
2506 # doing reload synchronously and two reloads happen back-to-back,
2507 # coro crashes during coro_state_free->destroy here.
2508
2509 $RELOAD_WATCHER ||= Event->timer (
2510 reentrant => 0,
2511 after => 0,
2512 data => WF_AUTOCANCEL,
2513 cb => sub {
2514 reload;
2515 undef $RELOAD_WATCHER;
2516 },
2517 );
2518 } 2786 }
2519}; 2787};
2520 2788
2521unshift @INC, $LIBDIR; 2789unshift @INC, $LIBDIR;
2522 2790
2523my $bug_warning = 0; 2791my $bug_warning = 0;
2792
2793our @WAIT_FOR_TICK;
2794our @WAIT_FOR_TICK_BEGIN;
2795
2796sub wait_for_tick {
2797 return unless $TICK_WATCHER->is_active;
2798 return if $Coro::current == $Coro::main;
2799
2800 my $signal = new Coro::Signal;
2801 push @WAIT_FOR_TICK, $signal;
2802 $signal->wait;
2803}
2804
2805sub wait_for_tick_begin {
2806 return unless $TICK_WATCHER->is_active;
2807 return if $Coro::current == $Coro::main;
2808
2809 my $signal = new Coro::Signal;
2810 push @WAIT_FOR_TICK_BEGIN, $signal;
2811 $signal->wait;
2812}
2524 2813
2525$TICK_WATCHER = Event->timer ( 2814$TICK_WATCHER = Event->timer (
2526 reentrant => 0, 2815 reentrant => 0,
2527 parked => 1, 2816 parked => 1,
2528 prio => 0, 2817 prio => 0,
2536 } 2825 }
2537 2826
2538 $NOW = Event::time; 2827 $NOW = Event::time;
2539 2828
2540 cf::server_tick; # one server iteration 2829 cf::server_tick; # one server iteration
2830
2541 $RUNTIME += $TICK; 2831 $RUNTIME += $TICK;
2542 $NEXT_TICK += $TICK; 2832 $NEXT_TICK += $TICK;
2543 2833
2544 if ($NOW >= $NEXT_RUNTIME_WRITE) { 2834 if ($NOW >= $NEXT_RUNTIME_WRITE) {
2545 $NEXT_RUNTIME_WRITE = $NOW + 10; 2835 $NEXT_RUNTIME_WRITE = $NOW + 10;
2547 write_runtime 2837 write_runtime
2548 or warn "ERROR: unable to write runtime file: $!"; 2838 or warn "ERROR: unable to write runtime file: $!";
2549 }; 2839 };
2550 } 2840 }
2551 2841
2552 $WAIT_FOR_TICK->broadcast;
2553 $WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2554
2555# my $AFTER = Event::time; 2842# my $AFTER = Event::time;
2556# warn $AFTER - $NOW;#d# 2843# warn $AFTER - $NOW;#d#
2557 2844
2558 # if we are delayed by four ticks or more, skip them all 2845 # if we are delayed by four ticks or more, skip them all
2559 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4; 2846 $NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2560 2847
2561 $TICK_WATCHER->at ($NEXT_TICK); 2848 $TICK_WATCHER->at ($NEXT_TICK);
2562 $TICK_WATCHER->start; 2849 $TICK_WATCHER->start;
2850
2851 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2852 $sig->send;
2853 }
2854 while (my $sig = shift @WAIT_FOR_TICK) {
2855 $sig->send;
2856 }
2857
2858 _post_tick;
2563 }, 2859 },
2564); 2860);
2565 2861
2566{ 2862{
2567 BDB::max_poll_time $TICK * 0.1; 2863 BDB::max_poll_time $TICK * 0.1;
2595 2891
2596 cf::sync_job { 2892 cf::sync_job {
2597 eval { 2893 eval {
2598 BDB::db_env_open 2894 BDB::db_env_open
2599 $DB_ENV, 2895 $DB_ENV,
2600 $BDB_ENV_DIR, 2896 $BDBDIR,
2601 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN 2897 BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2602 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE, 2898 | BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2603 0666; 2899 0666;
2604 2900
2605 cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!; 2901 cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2606 2902
2607 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1); 2903 $DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2608 $DB_ENV->set_lk_detect; 2904 $DB_ENV->set_lk_detect;
2609 }; 2905 };
2610 2906
2626 prio => 6, 2922 prio => 6,
2627 cb => \&IO::AIO::poll_cb, 2923 cb => \&IO::AIO::poll_cb,
2628 ); 2924 );
2629} 2925}
2630 2926
2927# load additional modules
2928use cf::pod;
2929
2631END { cf::emergency_save } 2930END { cf::emergency_save }
2632 2931
26331 29321
2634 2933

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