--- deliantra/server/lib/cf.pm	2007/12/05 11:08:34	1.398
+++ deliantra/server/lib/cf.pm	2008/04/02 11:13:55	1.412
@@ -1,3 +1,24 @@
+# 
+# This file is part of Deliantra, the Roguelike Realtime MMORPG.
+# 
+# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
+# 
+# Deliantra is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+# 
+# The authors can be reached via e-mail to <support@deliantra.net>
+# 
+
 package cf;
 
 use utf8;
@@ -6,13 +27,13 @@
 use Symbol;
 use List::Util;
 use Socket;
-use EV;
+use EV 1.86;
 use Opcode;
 use Safe;
 use Safe::Hole;
 use Storable ();
 
-use Coro 4.1 ();
+use Coro 4.32 ();
 use Coro::State;
 use Coro::Handle;
 use Coro::EV;
@@ -20,6 +41,7 @@
 use Coro::Signal;
 use Coro::Semaphore;
 use Coro::AIO;
+use Coro::BDB;
 use Coro::Storable;
 use Coro::Util ();
 
@@ -28,7 +50,7 @@
 use Data::Dumper;
 use Digest::MD5;
 use Fcntl;
-use YAML::Syck ();
+use YAML ();
 use IO::AIO 2.51 ();
 use Time::HiRes;
 use Compress::LZF;
@@ -40,9 +62,6 @@
 Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
 Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
 
-# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
-$YAML::Syck::ImplicitUnicode = 1;
-
 $Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
 
 sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
@@ -70,13 +89,12 @@
 our $PLAYERDIR = "$LOCALDIR/" . playerdir;
 our $RANDOMDIR = "$LOCALDIR/random";
 our $BDBDIR    = "$LOCALDIR/db";
+our %RESOURCE;
 
 our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
-our $TICK_WATCHER;
 our $AIO_POLL_WATCHER;
 our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
 our $NEXT_TICK;
-our $NOW;
 our $USE_FSYNC = 1; # use fsync to write maps - default off
 
 our $BDB_POLL_WATCHER;
@@ -89,6 +107,7 @@
 
 our $UPTIME; $UPTIME ||= time;
 our $RUNTIME;
+our $NOW;
 
 our (%PLAYER, %PLAYER_LOADING); # all users
 our (%MAP,    %MAP_LOADING   ); # all maps
@@ -99,7 +118,8 @@
 
 our $LOAD;       # a number between 0 (idle) and 1 (too many objects)
 our $LOADAVG;    # same thing, but with alpha-smoothing
-our $tick_start; # for load detecting purposes
+our $JITTER;     # average jitter
+our $TICK_START; # for load detecting purposes
 
 binmode STDOUT;
 binmode STDERR;
@@ -194,6 +214,21 @@
    };
 }
 
+$Coro::State::DIEHOOK = sub {
+   return unless $^S eq 0; # "eq", not "=="
+
+   if ($Coro::current == $Coro::main) {#d#
+      warn "DIEHOOK called in main context, Coro bug?\n";#d#
+      return;#d#
+   }#d#
+
+   # kill coroutine otherwise
+   warn Carp::longmess $_[0];
+   Coro::terminate
+};
+
+$SIG{__DIE__} = sub { }; #d#?
+
 @safe::cf::global::ISA         = @cf::global::ISA         = 'cf::attachable';
 @safe::cf::object::ISA         = @cf::object::ISA         = 'cf::attachable';
 @safe::cf::player::ISA         = @cf::player::ISA         = 'cf::attachable';
@@ -327,13 +362,9 @@
 }
 
 sub freeze_mainloop {
-   return unless $TICK_WATCHER->is_active;
+   tick_inhibit_inc;
 
-   my $guard = Coro::guard {
-      $TICK_WATCHER->start;
-   };
-   $TICK_WATCHER->stop;
-   $guard
+   Coro::guard \&tick_inhibit_dec;
 }
 
 =item cf::periodic $interval, $cb
@@ -444,8 +475,6 @@
       
       LOG llevError, Carp::longmess "sync job";#d#
 
-      # TODO: use suspend/resume instead
-      # (but this is cancel-safe)
       my $freeze_guard = freeze_mainloop;
 
       my $busy = 1;
@@ -466,12 +495,9 @@
          }
       }
 
-      $time = EV::time - $time;
+      my $time = EV::time - $time;
 
-      LOG llevError | logBacktrace, Carp::longmess "long sync job"
-         if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
-
-      $tick_start += $time; # do not account sync jobs to server load
+      $TICK_START += $time; # do not account sync jobs to server load
 
       wantarray ? @res : $res[0]
    } else {
@@ -969,7 +995,7 @@
    0
 }
 
-=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)
+=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
 
 =item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
 
@@ -1304,8 +1330,7 @@
 
                if (exists $v->{meta}{mandatory}) {
                   warn $msg;
-                  warn "mandatory extension failed to load, exiting.\n";
-                  exit 1;
+                  cf::cleanup "mandatory extension failed to load, exiting.";
                }
                
                warn $msg;
@@ -3150,6 +3175,7 @@
 
       while (my ($face, $info) = each %$faces) {
          my $idx = (cf::face::find $face) || cf::face::alloc $face;
+
          cf::face::set_visibility $idx, $info->{visibility};
          cf::face::set_magicmap   $idx, $info->{magicmap};
          cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
@@ -3160,8 +3186,10 @@
 
       while (my ($face, $info) = each %$faces) {
          next unless $info->{smooth};
+
          my $idx = cf::face::find $face
             or next;
+
          if (my $smooth = cf::face::find $info->{smooth}) {
             cf::face::set_smooth      $idx, $smooth;
             cf::face::set_smoothlevel $idx, $info->{smoothlevel};
@@ -3189,52 +3217,58 @@
       # that gcfclient doesn't grok a >10000 face index.
       my $res = $facedata->{resource};
 
-      my $soundconf = delete $res->{"res/sound.conf"};
-
       while (my ($name, $info) = each %$res) {
-         my $idx = (cf::face::find $name) || cf::face::alloc $name;
-         my $data;
-
-         if ($info->{type} & 1) {
-            # prepend meta info
+         if (defined $info->{type}) {
+            my $idx = (cf::face::find $name) || cf::face::alloc $name;
+            my $data;
+
+            if ($info->{type} & 1) {
+               # prepend meta info
+
+               my $meta = $enc->encode ({
+                  name => $name,
+                  %{ $info->{meta} || {} },
+               });
 
-            my $meta = $enc->encode ({
-               name => $name,
-               %{ $info->{meta} || {} },
-            });
+               $data = pack "(w/a*)*", $meta, $info->{data};
+            } else {
+               $data = $info->{data};
+            }
 
-            $data = pack "(w/a*)*", $meta, $info->{data};
+            cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
+            cf::face::set_type $idx, $info->{type};
          } else {
-            $data = $info->{data};
+            $RESOURCE{$name} = $info;
          }
 
-         cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
-         cf::face::set_type $idx, $info->{type};
-
          cf::cede_to_tick;
       }
+   }
+
+   cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
 
-      if ($soundconf) {
-         $soundconf = $enc->decode (delete $soundconf->{data});
+   1
+}
 
-         for (0 .. SOUND_CAST_SPELL_0 - 1) {
-            my $sound = $soundconf->{compat}[$_]
-               or next;
+cf::global->attach (on_resource_update => sub {
+   if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
+      $soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
 
-            my $face = cf::face::find "sound/$sound->[1]";
-            cf::sound::set $sound->[0] => $face;
-            cf::sound::old_sound_index $_, $face; # gcfclient-compat
-         }
+      for (0 .. SOUND_CAST_SPELL_0 - 1) {
+         my $sound = $soundconf->{compat}[$_]
+            or next;
 
-         while (my ($k, $v) = each %{$soundconf->{event}}) {
-            my $face = cf::face::find "sound/$v";
-            cf::sound::set $k => $face;
-         }
+         my $face = cf::face::find "sound/$sound->[1]";
+         cf::sound::set $sound->[0] => $face;
+         cf::sound::old_sound_index $_, $face; # gcfclient-compat
       }
-   }
 
-   1
-}
+      while (my ($k, $v) = each %{$soundconf->{event}}) {
+         my $face = cf::face::find "sound/$v";
+         cf::sound::set $k => $face;
+      }
+   }
+});
 
 register_exticmd fx_want => sub {
    my ($ns, $want) = @_;
@@ -3299,7 +3333,7 @@
       or return;
 
    local $/;
-   *CFG = YAML::Syck::Load <$fh>;
+   *CFG = YAML::Load <$fh>;
 
    $EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
 
@@ -3329,8 +3363,8 @@
    db_init;
    load_extensions;
 
-   $TICK_WATCHER->start;
    $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
+   evthread_start;
    EV::loop;
 }
 
@@ -3537,8 +3571,7 @@
       1
    } or do {
       warn $@;
-      warn "error while reloading, exiting.";
-      exit 1;
+      cf::cleanup "error while reloading, exiting.";
    };
 
    warn "reloaded";
@@ -3551,8 +3584,8 @@
    # coro crashes during coro_state_free->destroy here.
 
    $RELOAD_WATCHER ||= EV::timer 0, 0, sub {
-      undef $RELOAD_WATCHER;
       do_reload_perl;
+      undef $RELOAD_WATCHER;
    };
 }
 
@@ -3576,7 +3609,7 @@
 our @WAIT_FOR_TICK_BEGIN;
 
 sub wait_for_tick {
-   return unless $TICK_WATCHER->is_active;
+   return if tick_inhibit;
    return if $Coro::current == $Coro::main;
 
    my $signal = new Coro::Signal;
@@ -3585,7 +3618,7 @@
 }
 
 sub wait_for_tick_begin {
-   return unless $TICK_WATCHER->is_active;
+   return if tick_inhibit;
    return if $Coro::current == $Coro::main;
 
    my $signal = new Coro::Signal;
@@ -3593,22 +3626,17 @@
    $signal->wait;
 }
 
-$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
+sub tick {
    if ($Coro::current != $Coro::main) {
       Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
          unless ++$bug_warning > 10;
       return;
    }
 
-   $NOW = $tick_start = EV::now;
-
    cf::server_tick; # one server iteration
 
-   $RUNTIME   += $TICK;
-   $NEXT_TICK += $TICK;
-
    if ($NOW >= $NEXT_RUNTIME_WRITE) {
-      $NEXT_RUNTIME_WRITE = $NOW + 10;
+      $NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
       Coro::async_pool {
          $Coro::current->{desc} = "runtime saver";
          write_runtime
@@ -3623,32 +3651,24 @@
       $sig->send;
    }
 
-   $LOAD = ($NOW - $tick_start) / $TICK;
+   $LOAD = ($NOW - $TICK_START) / $TICK;
    $LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
 
-   _post_tick;
-};
-$TICK_WATCHER->priority (EV::MAXPRI);
+   if (0) {
+      if ($NEXT_TICK) {
+         my $jitter = $TICK_START - $NEXT_TICK;
+         $JITTER = $JITTER * 0.75 + $jitter * 0.25;
+         warn "jitter $JITTER\n";#d#
+      }
+   }
+}
 
 {
-   BDB::min_parallel 8;
-   BDB::max_poll_time $TICK * 0.1;
-   $BDB_POLL_WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
+   # configure BDB
 
-   BDB::set_sync_prepare {
-      my $status;
-      my $current = $Coro::current;
-      (
-         sub {
-            $status = $!;
-            $current->ready; undef $current;
-         },
-         sub {
-            Coro::schedule while defined $current;
-            $! = $status;
-         },
-      )
-   };
+   BDB::min_parallel 8;
+   BDB::max_poll_reqs $TICK * 0.1;
+   $Coro::BDB::WATCHER->priority (1);
 
    unless ($DB_ENV) {
       $DB_ENV = BDB::db_env_create;
@@ -3685,11 +3705,11 @@
 }
 
 {
-   IO::AIO::min_parallel 8;
+   # configure IO::AIO
 
-   undef $Coro::AIO::WATCHER;
+   IO::AIO::min_parallel 8;
    IO::AIO::max_poll_time $TICK * 0.1;
-   $AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
+   $Coro::AIO::WATCHER->priority (1);
 }
 
 my $_log_backtrace;