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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.403 by root, Mon Dec 17 07:09:18 2007 UTC vs.
Revision 1.419 by root, Sun Apr 13 01:34:09 2008 UTC

1#
2# This file is part of Deliantra, the Roguelike Realtime MMORPG.
3#
4# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5#
6# Deliantra is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10#
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14# GNU General Public License for more details.
15#
16# You should have received a copy of the GNU General Public License
17# along with this program. If not, see <http://www.gnu.org/licenses/>.
18#
19# The authors can be reached via e-mail to <support@deliantra.net>
20#
21
1package cf; 22package cf;
2 23
3use utf8; 24use utf8;
4use strict; 25use strict;
5 26
6use Symbol; 27use Symbol;
7use List::Util; 28use List::Util;
8use Socket; 29use Socket;
9use EV; 30use EV 3.2;
10use Opcode; 31use Opcode;
11use Safe; 32use Safe;
12use Safe::Hole; 33use Safe::Hole;
13use Storable (); 34use Storable ();
14 35
15use Coro 4.32 (); 36use Coro 4.50 ();
16use Coro::State; 37use Coro::State;
17use Coro::Handle; 38use Coro::Handle;
18use Coro::EV; 39use Coro::EV;
19use Coro::Timer; 40use Coro::Timer;
20use Coro::Signal; 41use Coro::Signal;
… …
27use JSON::XS 2.01 (); 48use JSON::XS 2.01 ();
28use BDB (); 49use BDB ();
29use Data::Dumper; 50use Data::Dumper;
30use Digest::MD5; 51use Digest::MD5;
31use Fcntl; 52use Fcntl;
32use YAML::Syck (); 53use YAML ();
33use IO::AIO 2.51 (); 54use IO::AIO 2.51 ();
34use Time::HiRes; 55use Time::HiRes;
35use Compress::LZF; 56use Compress::LZF;
36use Digest::MD5 (); 57use Digest::MD5 ();
37 58
38# configure various modules to our taste 59# configure various modules to our taste
39# 60#
40$Storable::canonical = 1; # reduce rsync transfers 61$Storable::canonical = 1; # reduce rsync transfers
41Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 62Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
42Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 63Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
43
44# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
45$YAML::Syck::ImplicitUnicode = 1;
46 64
47$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority 65$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
48 66
49sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 67sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
50 68
… …
69our $TMPDIR = "$LOCALDIR/" . tmpdir; 87our $TMPDIR = "$LOCALDIR/" . tmpdir;
70our $UNIQUEDIR = "$LOCALDIR/" . uniquedir; 88our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
71our $PLAYERDIR = "$LOCALDIR/" . playerdir; 89our $PLAYERDIR = "$LOCALDIR/" . playerdir;
72our $RANDOMDIR = "$LOCALDIR/random"; 90our $RANDOMDIR = "$LOCALDIR/random";
73our $BDBDIR = "$LOCALDIR/db"; 91our $BDBDIR = "$LOCALDIR/db";
92our %RESOURCE;
74 93
75our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 94our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
76our $TICK_WATCHER;
77our $AIO_POLL_WATCHER; 95our $AIO_POLL_WATCHER;
78our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 96our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
79our $NEXT_TICK; 97our $NEXT_TICK;
80our $USE_FSYNC = 1; # use fsync to write maps - default off 98our $USE_FSYNC = 1; # use fsync to write maps - default off
81 99
… …
98# used to convert map paths into valid unix filenames by replacing / by ∕ 116# used to convert map paths into valid unix filenames by replacing / by ∕
99our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons 117our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
100 118
101our $LOAD; # a number between 0 (idle) and 1 (too many objects) 119our $LOAD; # a number between 0 (idle) and 1 (too many objects)
102our $LOADAVG; # same thing, but with alpha-smoothing 120our $LOADAVG; # same thing, but with alpha-smoothing
121our $JITTER; # average jitter
103our $tick_start; # for load detecting purposes 122our $TICK_START; # for load detecting purposes
104 123
105binmode STDOUT; 124binmode STDOUT;
106binmode STDERR; 125binmode STDERR;
107 126
108# read virtual server time, if available 127# read virtual server time, if available
… …
192 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge; 211 $msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
193 212
194 LOG llevError, $msg; 213 LOG llevError, $msg;
195 }; 214 };
196} 215}
216
217$Coro::State::DIEHOOK = sub {
218 return unless $^S eq 0; # "eq", not "=="
219
220 if ($Coro::current == $Coro::main) {#d#
221 warn "DIEHOOK called in main context, Coro bug?\n";#d#
222 return;#d#
223 }#d#
224
225 # kill coroutine otherwise
226 warn Carp::longmess $_[0];
227 Coro::terminate
228};
229
230$SIG{__DIE__} = sub { }; #d#?
197 231
198@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; 232@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
199@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; 233@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
200@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; 234@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
201@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; 235@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
… …
326 360
327 ! ! $LOCK{$key} 361 ! ! $LOCK{$key}
328} 362}
329 363
330sub freeze_mainloop { 364sub freeze_mainloop {
331 return unless $TICK_WATCHER->is_active; 365 tick_inhibit_inc;
332 366
333 my $guard = Coro::guard { 367 Coro::guard \&tick_inhibit_dec;
334 $TICK_WATCHER->start;
335 };
336 $TICK_WATCHER->stop;
337 $guard
338} 368}
339 369
340=item cf::periodic $interval, $cb 370=item cf::periodic $interval, $cb
341 371
342Like EV::periodic, but randomly selects a starting point so that the actions 372Like EV::periodic, but randomly selects a starting point so that the actions
… …
443 # this is the main coro, too bad, we have to block 473 # this is the main coro, too bad, we have to block
444 # till the operation succeeds, freezing the server :/ 474 # till the operation succeeds, freezing the server :/
445 475
446 LOG llevError, Carp::longmess "sync job";#d# 476 LOG llevError, Carp::longmess "sync job";#d#
447 477
448 # TODO: use suspend/resume instead
449 # (but this is cancel-safe)
450 my $freeze_guard = freeze_mainloop; 478 my $freeze_guard = freeze_mainloop;
451 479
452 my $busy = 1; 480 my $busy = 1;
453 my @res; 481 my @res;
454 482
… …
465 } else { 493 } else {
466 EV::loop EV::LOOP_ONESHOT; 494 EV::loop EV::LOOP_ONESHOT;
467 } 495 }
468 } 496 }
469 497
470 $time = EV::time - $time; 498 my $time = EV::time - $time;
471 499
472 LOG llevError | logBacktrace, Carp::longmess "long sync job"
473 if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
474
475 $tick_start += $time; # do not account sync jobs to server load 500 $TICK_START += $time; # do not account sync jobs to server load
476 501
477 wantarray ? @res : $res[0] 502 wantarray ? @res : $res[0]
478 } else { 503 } else {
479 # we are in another coroutine, how wonderful, everything just works 504 # we are in another coroutine, how wonderful, everything just works
480 505
… …
522 reset_signals; 547 reset_signals;
523 &$cb 548 &$cb
524 }, @args; 549 }, @args;
525 550
526 wantarray ? @res : $res[-1] 551 wantarray ? @res : $res[-1]
552}
553
554=item $coin = coin_from_name $name
555
556=cut
557
558our %coin_alias = (
559 "silver" => "silvercoin",
560 "silvercoin" => "silvercoin",
561 "silvercoins" => "silvercoin",
562 "gold" => "goldcoin",
563 "goldcoin" => "goldcoin",
564 "goldcoins" => "goldcoin",
565 "platinum" => "platinacoin",
566 "platinumcoin" => "platinacoin",
567 "platinumcoins" => "platinacoin",
568 "platina" => "platinacoin",
569 "platinacoin" => "platinacoin",
570 "platinacoins" => "platinacoin",
571 "royalty" => "royalty",
572 "royalties" => "royalty",
573);
574
575sub coin_from_name($) {
576 $coin_alias{$_[0]}
577 ? cf::arch::find $coin_alias{$_[0]}
578 : undef
527} 579}
528 580
529=item $value = cf::db_get $family => $key 581=item $value = cf::db_get $family => $key
530 582
531Returns a single value from the environment database. 583Returns a single value from the environment database.
… …
968 } 1020 }
969 1021
970 0 1022 0
971} 1023}
972 1024
973=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) 1025=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
974 1026
975=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) 1027=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
976 1028
977Generate an object-specific event with the given arguments. 1029Generate an object-specific event with the given arguments.
978 1030
… …
1303 my $msg = $@ ? "$v->{path}: $@\n" 1355 my $msg = $@ ? "$v->{path}: $@\n"
1304 : "$v->{base}: extension inactive.\n"; 1356 : "$v->{base}: extension inactive.\n";
1305 1357
1306 if (exists $v->{meta}{mandatory}) { 1358 if (exists $v->{meta}{mandatory}) {
1307 warn $msg; 1359 warn $msg;
1308 warn "mandatory extension failed to load, exiting.\n"; 1360 cf::cleanup "mandatory extension failed to load, exiting.";
1309 exit 1;
1310 } 1361 }
1311 1362
1312 warn $msg; 1363 warn $msg;
1313 } 1364 }
1314 1365
… …
1724our $MAX_RESET = 3600; 1775our $MAX_RESET = 3600;
1725our $DEFAULT_RESET = 3000; 1776our $DEFAULT_RESET = 3000;
1726 1777
1727sub generate_random_map { 1778sub generate_random_map {
1728 my ($self, $rmp) = @_; 1779 my ($self, $rmp) = @_;
1780
1781 my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1782
1729 # mit "rum" bekleckern, nicht 1783 # mit "rum" bekleckern, nicht
1730 $self->_create_random_map ( 1784 $self->_create_random_map (
1731 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, 1785 $rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1732 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, 1786 $rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1733 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, 1787 $rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
… …
1855 1909
1856# the temporary/swap location 1910# the temporary/swap location
1857sub save_path { 1911sub save_path {
1858 my ($self) = @_; 1912 my ($self) = @_;
1859 1913
1860 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1914 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1861 "$TMPDIR/$path.map" 1915 "$TMPDIR/$path.map"
1862} 1916}
1863 1917
1864# the unique path, undef == no special unique path 1918# the unique path, undef == no special unique path
1865sub uniq_path { 1919sub uniq_path {
1866 my ($self) = @_; 1920 my ($self) = @_;
1867 1921
1868 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; 1922 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1869 "$UNIQUEDIR/$path" 1923 "$UNIQUEDIR/$path"
1870} 1924}
1871 1925
1872# and all this just because we cannot iterate over 1926# and all this just because we cannot iterate over
1873# all maps in C++... 1927# all maps in C++...
… …
2319 2373
2320sub unique_maps() { 2374sub unique_maps() {
2321 [ 2375 [
2322 map { 2376 map {
2323 utf8::decode $_; 2377 utf8::decode $_;
2324 /\.map$/ 2378 s/\.map$//; # TODO future compatibility hack
2379 /\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
2380 ? ()
2325 ? normalise $_ 2381 : normalise $_
2326 : ()
2327 } @{ aio_readdir $UNIQUEDIR or [] } 2382 } @{ aio_readdir $UNIQUEDIR or [] }
2328 ] 2383 ]
2329} 2384}
2330 2385
2331package cf;
2332
2333=back 2386=back
2334 2387
2335=head3 cf::object 2388=head3 cf::object
2336 2389
2337=cut 2390=cut
… …
2340 2393
2341=over 4 2394=over 4
2342 2395
2343=item $ob->inv_recursive 2396=item $ob->inv_recursive
2344 2397
2345Returns the inventory of the object _and_ their inventories, recursively. 2398Returns the inventory of the object I<and> their inventories, recursively,
2399but I<not> the object itself.
2346 2400
2347=cut 2401=cut
2348 2402
2349sub inv_recursive_; 2403sub inv_recursive_;
2350sub inv_recursive_ { 2404sub inv_recursive_ {
… …
2355 inv_recursive_ inv $_[0] 2409 inv_recursive_ inv $_[0]
2356} 2410}
2357 2411
2358=item $ref = $ob->ref 2412=item $ref = $ob->ref
2359 2413
2360creates and returns a persistent reference to an objetc that can be stored as a string. 2414Creates and returns a persistent reference to an object that can be stored as a string.
2361 2415
2362=item $ob = cf::object::deref ($refstring) 2416=item $ob = cf::object::deref ($refstring)
2363 2417
2364returns the objetc referenced by refstring. may return undef when it cnanot find the object, 2418returns the objetc referenced by refstring. may return undef when it cnanot find the object,
2365even if the object actually exists. May block. 2419even if the object actually exists. May block.
… …
3149 { 3203 {
3150 my $faces = $facedata->{faceinfo}; 3204 my $faces = $facedata->{faceinfo};
3151 3205
3152 while (my ($face, $info) = each %$faces) { 3206 while (my ($face, $info) = each %$faces) {
3153 my $idx = (cf::face::find $face) || cf::face::alloc $face; 3207 my $idx = (cf::face::find $face) || cf::face::alloc $face;
3208
3154 cf::face::set_visibility $idx, $info->{visibility}; 3209 cf::face::set_visibility $idx, $info->{visibility};
3155 cf::face::set_magicmap $idx, $info->{magicmap}; 3210 cf::face::set_magicmap $idx, $info->{magicmap};
3156 cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32}; 3211 cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
3157 cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64}; 3212 cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
3158 3213
3159 cf::cede_to_tick; 3214 cf::cede_to_tick;
3160 } 3215 }
3161 3216
3162 while (my ($face, $info) = each %$faces) { 3217 while (my ($face, $info) = each %$faces) {
3163 next unless $info->{smooth}; 3218 next unless $info->{smooth};
3219
3164 my $idx = cf::face::find $face 3220 my $idx = cf::face::find $face
3165 or next; 3221 or next;
3222
3166 if (my $smooth = cf::face::find $info->{smooth}) { 3223 if (my $smooth = cf::face::find $info->{smooth}) {
3167 cf::face::set_smooth $idx, $smooth; 3224 cf::face::set_smooth $idx, $smooth;
3168 cf::face::set_smoothlevel $idx, $info->{smoothlevel}; 3225 cf::face::set_smoothlevel $idx, $info->{smoothlevel};
3169 } else { 3226 } else {
3170 warn "smooth face '$info->{smooth}' not found for face '$face'"; 3227 warn "smooth face '$info->{smooth}' not found for face '$face'";
… …
3188 { 3245 {
3189 # TODO: for gcfclient pleasure, we should give resources 3246 # TODO: for gcfclient pleasure, we should give resources
3190 # that gcfclient doesn't grok a >10000 face index. 3247 # that gcfclient doesn't grok a >10000 face index.
3191 my $res = $facedata->{resource}; 3248 my $res = $facedata->{resource};
3192 3249
3193 my $soundconf = delete $res->{"res/sound.conf"};
3194
3195 while (my ($name, $info) = each %$res) { 3250 while (my ($name, $info) = each %$res) {
3251 if (defined $info->{type}) {
3196 my $idx = (cf::face::find $name) || cf::face::alloc $name; 3252 my $idx = (cf::face::find $name) || cf::face::alloc $name;
3197 my $data; 3253 my $data;
3198 3254
3199 if ($info->{type} & 1) { 3255 if ($info->{type} & 1) {
3200 # prepend meta info 3256 # prepend meta info
3201 3257
3202 my $meta = $enc->encode ({ 3258 my $meta = $enc->encode ({
3203 name => $name, 3259 name => $name,
3204 %{ $info->{meta} || {} }, 3260 %{ $info->{meta} || {} },
3205 }); 3261 });
3206 3262
3207 $data = pack "(w/a*)*", $meta, $info->{data}; 3263 $data = pack "(w/a*)*", $meta, $info->{data};
3264 } else {
3265 $data = $info->{data};
3266 }
3267
3268 cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
3269 cf::face::set_type $idx, $info->{type};
3208 } else { 3270 } else {
3209 $data = $info->{data}; 3271 $RESOURCE{$name} = $info;
3210 } 3272 }
3211 3273
3212 cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
3213 cf::face::set_type $idx, $info->{type};
3214
3215 cf::cede_to_tick; 3274 cf::cede_to_tick;
3216 } 3275 }
3217
3218 if ($soundconf) {
3219 $soundconf = $enc->decode (delete $soundconf->{data});
3220
3221 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3222 my $sound = $soundconf->{compat}[$_]
3223 or next;
3224
3225 my $face = cf::face::find "sound/$sound->[1]";
3226 cf::sound::set $sound->[0] => $face;
3227 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3228 }
3229
3230 while (my ($k, $v) = each %{$soundconf->{event}}) {
3231 my $face = cf::face::find "sound/$v";
3232 cf::sound::set $k => $face;
3233 }
3234 }
3235 } 3276 }
3277
3278 cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
3236 3279
3237 1 3280 1
3238} 3281}
3282
3283cf::global->attach (on_resource_update => sub {
3284 if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
3285 $soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
3286
3287 for (0 .. SOUND_CAST_SPELL_0 - 1) {
3288 my $sound = $soundconf->{compat}[$_]
3289 or next;
3290
3291 my $face = cf::face::find "sound/$sound->[1]";
3292 cf::sound::set $sound->[0] => $face;
3293 cf::sound::old_sound_index $_, $face; # gcfclient-compat
3294 }
3295
3296 while (my ($k, $v) = each %{$soundconf->{event}}) {
3297 my $face = cf::face::find "sound/$v";
3298 cf::sound::set $k => $face;
3299 }
3300 }
3301});
3239 3302
3240register_exticmd fx_want => sub { 3303register_exticmd fx_want => sub {
3241 my ($ns, $want) = @_; 3304 my ($ns, $want) = @_;
3242 3305
3243 while (my ($k, $v) = each %$want) { 3306 while (my ($k, $v) = each %$want) {
… …
3298sub reload_config { 3361sub reload_config {
3299 open my $fh, "<:utf8", "$CONFDIR/config" 3362 open my $fh, "<:utf8", "$CONFDIR/config"
3300 or return; 3363 or return;
3301 3364
3302 local $/; 3365 local $/;
3303 *CFG = YAML::Syck::Load <$fh>; 3366 *CFG = YAML::Load <$fh>;
3304 3367
3305 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; 3368 $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
3306 3369
3307 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset}; 3370 $cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
3308 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset}; 3371 $cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
… …
3328 3391
3329 reload_config; 3392 reload_config;
3330 db_init; 3393 db_init;
3331 load_extensions; 3394 load_extensions;
3332 3395
3333 $TICK_WATCHER->start;
3334 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3396 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3397 evthread_start IO::AIO::poll_fileno;
3335 EV::loop; 3398 EV::loop;
3336} 3399}
3337 3400
3338############################################################################# 3401#############################################################################
3339# initialisation and cleanup 3402# initialisation and cleanup
… …
3346 cf::cleanup "SIG$signal"; 3409 cf::cleanup "SIG$signal";
3347 }; 3410 };
3348 } 3411 }
3349} 3412}
3350 3413
3351sub write_runtime { 3414sub write_runtime_sync {
3352 my $runtime = "$LOCALDIR/runtime"; 3415 my $runtime = "$LOCALDIR/runtime";
3353 3416
3354 # first touch the runtime file to show we are still running: 3417 # first touch the runtime file to show we are still running:
3355 # the fsync below can take a very very long time. 3418 # the fsync below can take a very very long time.
3356 3419
… …
3382 and return; 3445 and return;
3383 3446
3384 warn "runtime file written.\n"; 3447 warn "runtime file written.\n";
3385 3448
3386 1 3449 1
3450}
3451
3452our $uuid_lock;
3453our $uuid_skip;
3454
3455sub write_uuid_sync($) {
3456 $uuid_skip ||= $_[0];
3457
3458 return if $uuid_lock;
3459 local $uuid_lock = 1;
3460
3461 my $uuid = "$LOCALDIR/uuid";
3462
3463 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3464 or return;
3465
3466 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
3467 $uuid_skip = 0;
3468
3469 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3470 and return;
3471
3472 # always fsync - this file is important
3473 aio_fsync $fh
3474 and return;
3475
3476 close $fh
3477 or return;
3478
3479 aio_rename "$uuid~", $uuid
3480 and return;
3481
3482 warn "uuid file written ($value).\n";
3483
3484 1
3485
3486}
3487
3488sub write_uuid($$) {
3489 my ($skip, $sync) = @_;
3490
3491 $sync ? write_uuid_sync $skip
3492 : async { write_uuid_sync $skip };
3387} 3493}
3388 3494
3389sub emergency_save() { 3495sub emergency_save() {
3390 my $freeze_guard = cf::freeze_mainloop; 3496 my $freeze_guard = cf::freeze_mainloop;
3391 3497
… …
3413 warn "end emergency map save\n"; 3519 warn "end emergency map save\n";
3414 3520
3415 warn "begin emergency database checkpoint\n"; 3521 warn "begin emergency database checkpoint\n";
3416 BDB::db_env_txn_checkpoint $DB_ENV; 3522 BDB::db_env_txn_checkpoint $DB_ENV;
3417 warn "end emergency database checkpoint\n"; 3523 warn "end emergency database checkpoint\n";
3524
3525 warn "begin write uuid\n";
3526 write_uuid_sync 1;
3527 warn "end write uuid\n";
3418 }; 3528 };
3419 3529
3420 warn "leave emergency perl save\n"; 3530 warn "leave emergency perl save\n";
3421} 3531}
3422 3532
… …
3437 warn "reloading..."; 3547 warn "reloading...";
3438 3548
3439 warn "entering sync_job"; 3549 warn "entering sync_job";
3440 3550
3441 cf::sync_job { 3551 cf::sync_job {
3442 cf::write_runtime; # external watchdog should not bark 3552 cf::write_runtime_sync; # external watchdog should not bark
3443 cf::emergency_save; 3553 cf::emergency_save;
3444 cf::write_runtime; # external watchdog should not bark 3554 cf::write_runtime_sync; # external watchdog should not bark
3445 3555
3446 warn "syncing database to disk"; 3556 warn "syncing database to disk";
3447 BDB::db_env_txn_checkpoint $DB_ENV; 3557 BDB::db_env_txn_checkpoint $DB_ENV;
3448 3558
3449 # if anything goes wrong in here, we should simply crash as we already saved 3559 # if anything goes wrong in here, we should simply crash as we already saved
… …
3536 warn "leaving sync_job"; 3646 warn "leaving sync_job";
3537 3647
3538 1 3648 1
3539 } or do { 3649 } or do {
3540 warn $@; 3650 warn $@;
3541 warn "error while reloading, exiting."; 3651 cf::cleanup "error while reloading, exiting.";
3542 exit 1;
3543 }; 3652 };
3544 3653
3545 warn "reloaded"; 3654 warn "reloaded";
3546}; 3655};
3547 3656
… …
3550sub reload_perl() { 3659sub reload_perl() {
3551 # doing reload synchronously and two reloads happen back-to-back, 3660 # doing reload synchronously and two reloads happen back-to-back,
3552 # coro crashes during coro_state_free->destroy here. 3661 # coro crashes during coro_state_free->destroy here.
3553 3662
3554 $RELOAD_WATCHER ||= EV::timer 0, 0, sub { 3663 $RELOAD_WATCHER ||= EV::timer 0, 0, sub {
3664 do_reload_perl;
3555 undef $RELOAD_WATCHER; 3665 undef $RELOAD_WATCHER;
3556 do_reload_perl;
3557 }; 3666 };
3558} 3667}
3559 3668
3560register_command "reload" => sub { 3669register_command "reload" => sub {
3561 my ($who, $arg) = @_; 3670 my ($who, $arg) = @_;
… …
3575 3684
3576our @WAIT_FOR_TICK; 3685our @WAIT_FOR_TICK;
3577our @WAIT_FOR_TICK_BEGIN; 3686our @WAIT_FOR_TICK_BEGIN;
3578 3687
3579sub wait_for_tick { 3688sub wait_for_tick {
3580 return unless $TICK_WATCHER->is_active; 3689 return if tick_inhibit;
3581 return if $Coro::current == $Coro::main; 3690 return if $Coro::current == $Coro::main;
3582 3691
3583 my $signal = new Coro::Signal; 3692 my $signal = new Coro::Signal;
3584 push @WAIT_FOR_TICK, $signal; 3693 push @WAIT_FOR_TICK, $signal;
3585 $signal->wait; 3694 $signal->wait;
3586} 3695}
3587 3696
3588sub wait_for_tick_begin { 3697sub wait_for_tick_begin {
3589 return unless $TICK_WATCHER->is_active; 3698 return if tick_inhibit;
3590 return if $Coro::current == $Coro::main; 3699 return if $Coro::current == $Coro::main;
3591 3700
3592 my $signal = new Coro::Signal; 3701 my $signal = new Coro::Signal;
3593 push @WAIT_FOR_TICK_BEGIN, $signal; 3702 push @WAIT_FOR_TICK_BEGIN, $signal;
3594 $signal->wait; 3703 $signal->wait;
3595} 3704}
3596 3705
3597$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub { 3706sub tick {
3598 if ($Coro::current != $Coro::main) { 3707 if ($Coro::current != $Coro::main) {
3599 Carp::cluck "major BUG: server tick called outside of main coro, skipping it" 3708 Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
3600 unless ++$bug_warning > 10; 3709 unless ++$bug_warning > 10;
3601 return; 3710 return;
3602 } 3711 }
3603 3712
3604 $NOW = $tick_start = EV::now;
3605
3606 cf::server_tick; # one server iteration 3713 cf::server_tick; # one server iteration
3607
3608 $RUNTIME += $TICK;
3609 $NEXT_TICK += $TICK;
3610 3714
3611 if ($NOW >= $NEXT_RUNTIME_WRITE) { 3715 if ($NOW >= $NEXT_RUNTIME_WRITE) {
3612 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.; 3716 $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
3613 Coro::async_pool { 3717 Coro::async_pool {
3614 $Coro::current->{desc} = "runtime saver"; 3718 $Coro::current->{desc} = "runtime saver";
3615 write_runtime 3719 write_runtime_sync
3616 or warn "ERROR: unable to write runtime file: $!"; 3720 or warn "ERROR: unable to write runtime file: $!";
3617 }; 3721 };
3618 } 3722 }
3619 3723
3620 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { 3724 if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
… …
3622 } 3726 }
3623 while (my $sig = shift @WAIT_FOR_TICK) { 3727 while (my $sig = shift @WAIT_FOR_TICK) {
3624 $sig->send; 3728 $sig->send;
3625 } 3729 }
3626 3730
3627 $LOAD = ($NOW - $tick_start) / $TICK; 3731 $LOAD = ($NOW - $TICK_START) / $TICK;
3628 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; 3732 $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
3629 3733
3630 _post_tick; 3734 if (0) {
3631}; 3735 if ($NEXT_TICK) {
3632$TICK_WATCHER->priority (EV::MAXPRI); 3736 my $jitter = $TICK_START - $NEXT_TICK;
3737 $JITTER = $JITTER * 0.75 + $jitter * 0.25;
3738 warn "jitter $JITTER\n";#d#
3739 }
3740 }
3741}
3633 3742
3634{ 3743{
3635 # configure BDB 3744 # configure BDB
3636 3745
3637 BDB::min_parallel 8; 3746 BDB::min_parallel 8;

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