1 |
package cf; |
2 |
|
3 |
use utf8; |
4 |
use strict; |
5 |
|
6 |
use Symbol; |
7 |
use List::Util; |
8 |
use Socket; |
9 |
use Storable; |
10 |
use Event; |
11 |
use Opcode; |
12 |
use Safe; |
13 |
use Safe::Hole; |
14 |
|
15 |
use Coro 3.61 (); |
16 |
use Coro::State; |
17 |
use Coro::Handle; |
18 |
use Coro::Event; |
19 |
use Coro::Timer; |
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use Coro::Signal; |
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use Coro::Semaphore; |
22 |
use Coro::AIO; |
23 |
use Coro::Storable; |
24 |
|
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use BDB (); |
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use Data::Dumper; |
27 |
use Digest::MD5; |
28 |
use Fcntl; |
29 |
use YAML::Syck (); |
30 |
use IO::AIO 2.32 (); |
31 |
use Time::HiRes; |
32 |
use Compress::LZF; |
33 |
|
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# configure various modules to our taste |
35 |
# |
36 |
$Storable::canonical = 1; # reduce rsync transfers |
37 |
Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator |
38 |
Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later |
39 |
|
40 |
$Event::Eval = 1; # no idea why this is required, but it is |
41 |
|
42 |
# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode? |
43 |
$YAML::Syck::ImplicitUnicode = 1; |
44 |
|
45 |
$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority |
46 |
|
47 |
sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload |
48 |
|
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our %COMMAND = (); |
50 |
our %COMMAND_TIME = (); |
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|
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our @EXTS = (); # list of extension package names |
53 |
our %EXTCMD = (); |
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our %EXT_CORO = (); # coroutines bound to extensions |
55 |
our %EXT_MAP = (); # pluggable maps |
56 |
|
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our $RELOAD; # number of reloads so far |
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our @EVENT; |
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|
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our $CONFDIR = confdir; |
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our $DATADIR = datadir; |
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our $LIBDIR = "$DATADIR/ext"; |
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our $PODDIR = "$DATADIR/pod"; |
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our $MAPDIR = "$DATADIR/" . mapdir; |
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our $LOCALDIR = localdir; |
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our $TMPDIR = "$LOCALDIR/" . tmpdir; |
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our $UNIQUEDIR = "$LOCALDIR/" . uniquedir; |
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our $PLAYERDIR = "$LOCALDIR/" . playerdir; |
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our $RANDOMDIR = "$LOCALDIR/random"; |
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our $BDBDIR = "$LOCALDIR/db"; |
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|
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our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) |
73 |
our $TICK_WATCHER; |
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our $AIO_POLL_WATCHER; |
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our $NEXT_RUNTIME_WRITE; # when should the runtime file be written |
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our $NEXT_TICK; |
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our $NOW; |
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our $USE_FSYNC = 1; # use fsync to write maps - default off |
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|
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our $BDB_POLL_WATCHER; |
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our $DB_ENV; |
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|
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our %CFG; |
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|
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our $UPTIME; $UPTIME ||= time; |
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our $RUNTIME; |
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|
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our %PLAYER; # all users |
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our %MAP; # all maps |
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our $LINK_MAP; # the special {link} map, which is always available |
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|
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# used to convert map paths into valid unix filenames by replacing / by ∕ |
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our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons |
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|
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our $LOAD; # a number between 0 (idle) and 1 (too many objects) |
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our $LOADAVG; # same thing, but with alpha-smoothing |
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our $tick_start; # for load detecting purposes |
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|
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binmode STDOUT; |
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binmode STDERR; |
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|
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# read virtual server time, if available |
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unless ($RUNTIME || !-e "$LOCALDIR/runtime") { |
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open my $fh, "<", "$LOCALDIR/runtime" |
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or die "unable to read runtime file: $!"; |
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$RUNTIME = <$fh> + 0.; |
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} |
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|
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mkdir $_ |
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for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR; |
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|
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our $EMERGENCY_POSITION; |
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|
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sub cf::map::normalise; |
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|
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############################################################################# |
117 |
|
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=head2 GLOBAL VARIABLES |
119 |
|
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=over 4 |
121 |
|
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=item $cf::UPTIME |
123 |
|
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The timestamp of the server start (so not actually an uptime). |
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|
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=item $cf::RUNTIME |
127 |
|
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The time this server has run, starts at 0 and is increased by $cf::TICK on |
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every server tick. |
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|
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=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR |
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$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR |
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$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR |
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|
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Various directories - "/etc", read-only install directory, perl-library |
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directory, pod-directory, read-only maps directory, "/var", "/var/tmp", |
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unique-items directory, player file directory, random maps directory and |
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database environment. |
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|
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=item $cf::NOW |
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|
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The time of the last (current) server tick. |
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|
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=item $cf::TICK |
145 |
|
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The interval between server ticks, in seconds. |
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|
148 |
=item $cf::LOADAVG |
149 |
|
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The current CPU load on the server (alpha-smoothed), as a value between 0 |
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(none) and 1 (overloaded), indicating how much time is spent on processing |
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objects per tick. Healthy values are < 0.5. |
153 |
|
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=item $cf::LOAD |
155 |
|
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The raw value load value from the last tick. |
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|
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=item %cf::CFG |
159 |
|
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Configuration for the server, loaded from C</etc/crossfire/config>, or |
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from wherever your confdir points to. |
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|
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=item cf::wait_for_tick, cf::wait_for_tick_begin |
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|
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These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only |
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returns directly I<after> the tick processing (and consequently, can only wake one process |
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per tick), while cf::wait_for_tick wakes up all waiters after tick processing. |
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|
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=back |
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|
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=cut |
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|
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BEGIN { |
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*CORE::GLOBAL::warn = sub { |
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my $msg = join "", @_; |
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|
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$msg .= "\n" |
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unless $msg =~ /\n$/; |
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|
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$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge; |
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|
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utf8::encode $msg; |
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LOG llevError, $msg; |
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}; |
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} |
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|
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@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable'; |
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@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable'; |
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@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable'; |
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@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable'; |
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@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable'; |
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@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object'; |
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@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet) |
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|
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# we bless all objects into (empty) derived classes to force a method lookup |
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# within the Safe compartment. |
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for my $pkg (qw( |
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cf::global cf::attachable |
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cf::object cf::object::player |
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cf::client cf::player |
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cf::arch cf::living |
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cf::map cf::party cf::region |
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)) { |
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no strict 'refs'; |
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@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg; |
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} |
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|
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$Event::DIED = sub { |
209 |
warn "error in event callback: @_"; |
210 |
}; |
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|
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############################################################################# |
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|
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=head2 UTILITY FUNCTIONS |
215 |
|
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=over 4 |
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|
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=item dumpval $ref |
219 |
|
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=cut |
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|
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sub dumpval { |
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eval { |
224 |
local $SIG{__DIE__}; |
225 |
my $d; |
226 |
if (1) { |
227 |
$d = new Data::Dumper([$_[0]], ["*var"]); |
228 |
$d->Terse(1); |
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$d->Indent(2); |
230 |
$d->Quotekeys(0); |
231 |
$d->Useqq(1); |
232 |
#$d->Bless(...); |
233 |
$d->Seen($_[1]) if @_ > 1; |
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$d = $d->Dump(); |
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} |
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$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge; |
237 |
$d |
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} || "[unable to dump $_[0]: '$@']"; |
239 |
} |
240 |
|
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use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working |
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|
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=item $ref = cf::from_json $json |
244 |
|
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Converts a JSON string into the corresponding perl data structure. |
246 |
|
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=item $json = cf::to_json $ref |
248 |
|
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Converts a perl data structure into its JSON representation. |
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|
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=item cf::lock_wait $string |
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|
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Wait until the given lock is available. See cf::lock_acquire. |
254 |
|
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=item my $lock = cf::lock_acquire $string |
256 |
|
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Wait until the given lock is available and then acquires it and returns |
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a Coro::guard object. If the guard object gets destroyed (goes out of scope, |
259 |
for example when the coroutine gets canceled), the lock is automatically |
260 |
returned. |
261 |
|
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Lock names should begin with a unique identifier (for example, cf::map::find |
263 |
uses map_find and cf::map::load uses map_load). |
264 |
|
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=item $locked = cf::lock_active $string |
266 |
|
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Return true if the lock is currently active, i.e. somebody has locked it. |
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|
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=cut |
270 |
|
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our %LOCK; |
272 |
|
273 |
sub lock_wait($) { |
274 |
my ($key) = @_; |
275 |
|
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# wait for lock, if any |
277 |
while ($LOCK{$key}) { |
278 |
push @{ $LOCK{$key} }, $Coro::current; |
279 |
Coro::schedule; |
280 |
} |
281 |
} |
282 |
|
283 |
sub lock_acquire($) { |
284 |
my ($key) = @_; |
285 |
|
286 |
# wait, to be sure we are not locked |
287 |
lock_wait $key; |
288 |
|
289 |
$LOCK{$key} = []; |
290 |
|
291 |
Coro::guard { |
292 |
# wake up all waiters, to be on the safe side |
293 |
$_->ready for @{ delete $LOCK{$key} }; |
294 |
} |
295 |
} |
296 |
|
297 |
sub lock_active($) { |
298 |
my ($key) = @_; |
299 |
|
300 |
! ! $LOCK{$key} |
301 |
} |
302 |
|
303 |
sub freeze_mainloop { |
304 |
return unless $TICK_WATCHER->is_active; |
305 |
|
306 |
my $guard = Coro::guard { |
307 |
$TICK_WATCHER->start; |
308 |
}; |
309 |
$TICK_WATCHER->stop; |
310 |
$guard |
311 |
} |
312 |
|
313 |
=item cf::async { BLOCK } |
314 |
|
315 |
Currently the same as Coro::async_pool, meaning you cannot use |
316 |
C<on_destroy>, C<join> or other gimmicks on these coroutines. The only |
317 |
thing you are allowed to do is call C<prio> on it. |
318 |
|
319 |
=cut |
320 |
|
321 |
BEGIN { *async = \&Coro::async_pool } |
322 |
|
323 |
=item cf::sync_job { BLOCK } |
324 |
|
325 |
The design of Crossfire TRT requires that the main coroutine ($Coro::main) |
326 |
is always able to handle events or runnable, as Crossfire TRT is only |
327 |
partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not |
328 |
acceptable. |
329 |
|
330 |
If it must be done, put the blocking parts into C<sync_job>. This will run |
331 |
the given BLOCK in another coroutine while waiting for the result. The |
332 |
server will be frozen during this time, so the block should either finish |
333 |
fast or be very important. |
334 |
|
335 |
=cut |
336 |
|
337 |
sub sync_job(&) { |
338 |
my ($job) = @_; |
339 |
|
340 |
if ($Coro::current == $Coro::main) { |
341 |
my $time = Event::time; |
342 |
|
343 |
# this is the main coro, too bad, we have to block |
344 |
# till the operation succeeds, freezing the server :/ |
345 |
|
346 |
# TODO: use suspend/resume instead |
347 |
# (but this is cancel-safe) |
348 |
my $freeze_guard = freeze_mainloop; |
349 |
|
350 |
my $busy = 1; |
351 |
my @res; |
352 |
|
353 |
(async { |
354 |
@res = eval { $job->() }; |
355 |
warn $@ if $@; |
356 |
undef $busy; |
357 |
})->prio (Coro::PRIO_MAX); |
358 |
|
359 |
while ($busy) { |
360 |
Coro::cede or Event::one_event; |
361 |
} |
362 |
|
363 |
$time = Event::time - $time; |
364 |
|
365 |
LOG llevError | logBacktrace, Carp::longmess "long sync job" |
366 |
if $time > $TICK * 0.5 && $TICK_WATCHER->is_active; |
367 |
|
368 |
$tick_start += $time; # do not account sync jobs to server load |
369 |
|
370 |
wantarray ? @res : $res[0] |
371 |
} else { |
372 |
# we are in another coroutine, how wonderful, everything just works |
373 |
|
374 |
$job->() |
375 |
} |
376 |
} |
377 |
|
378 |
=item $coro = cf::async_ext { BLOCK } |
379 |
|
380 |
Like async, but this coro is automatically being canceled when the |
381 |
extension calling this is being unloaded. |
382 |
|
383 |
=cut |
384 |
|
385 |
sub async_ext(&) { |
386 |
my $cb = shift; |
387 |
|
388 |
my $coro = &Coro::async ($cb); |
389 |
|
390 |
$coro->on_destroy (sub { |
391 |
delete $EXT_CORO{$coro+0}; |
392 |
}); |
393 |
$EXT_CORO{$coro+0} = $coro; |
394 |
|
395 |
$coro |
396 |
} |
397 |
|
398 |
=item fork_call { }, $args |
399 |
|
400 |
Executes the given code block with the given arguments in a seperate |
401 |
process, returning the results. Everything must be serialisable with |
402 |
Coro::Storable. May, of course, block. Note that the executed sub may |
403 |
never block itself or use any form of Event handling. |
404 |
|
405 |
=cut |
406 |
|
407 |
sub fork_call(&@) { |
408 |
my ($cb, @args) = @_; |
409 |
|
410 |
# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC |
411 |
# or die "socketpair: $!"; |
412 |
pipe my $fh1, my $fh2 |
413 |
or die "pipe: $!"; |
414 |
|
415 |
if (my $pid = fork) { |
416 |
close $fh2; |
417 |
|
418 |
my $res = (Coro::Handle::unblock $fh1)->readline (undef); |
419 |
$res = Coro::Storable::thaw $res; |
420 |
|
421 |
waitpid $pid, 0; # should not block anymore, we expect the child to simply behave |
422 |
|
423 |
die $$res unless "ARRAY" eq ref $res; |
424 |
|
425 |
return wantarray ? @$res : $res->[-1]; |
426 |
} else { |
427 |
reset_signals; |
428 |
local $SIG{__WARN__}; |
429 |
local $SIG{__DIE__}; |
430 |
eval { |
431 |
close $fh1; |
432 |
|
433 |
my @res = eval { $cb->(@args) }; |
434 |
syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res); |
435 |
}; |
436 |
|
437 |
warn $@ if $@; |
438 |
_exit 0; |
439 |
} |
440 |
} |
441 |
|
442 |
=item $value = cf::db_get $family => $key |
443 |
|
444 |
Returns a single value from the environment database. |
445 |
|
446 |
=item cf::db_put $family => $key => $value |
447 |
|
448 |
Stores the given C<$value> in the family. It can currently store binary |
449 |
data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary). |
450 |
|
451 |
=cut |
452 |
|
453 |
our $DB; |
454 |
|
455 |
sub db_init { |
456 |
unless ($DB) { |
457 |
$DB = BDB::db_create $DB_ENV; |
458 |
|
459 |
cf::sync_job { |
460 |
eval { |
461 |
$DB->set_flags (BDB::CHKSUM); |
462 |
|
463 |
BDB::db_open $DB, undef, "db", undef, BDB::BTREE, |
464 |
BDB::CREATE | BDB::AUTO_COMMIT, 0666; |
465 |
cf::cleanup "db_open(db): $!" if $!; |
466 |
}; |
467 |
cf::cleanup "db_open(db): $@" if $@; |
468 |
}; |
469 |
} |
470 |
} |
471 |
|
472 |
sub db_get($$) { |
473 |
my $key = "$_[0]/$_[1]"; |
474 |
|
475 |
cf::sync_job { |
476 |
BDB::db_get $DB, undef, $key, my $data; |
477 |
|
478 |
$! ? () |
479 |
: $data |
480 |
} |
481 |
} |
482 |
|
483 |
sub db_put($$$) { |
484 |
BDB::dbreq_pri 4; |
485 |
BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { }; |
486 |
} |
487 |
|
488 |
=item cf::cache $id => [$paths...], $processversion => $process |
489 |
|
490 |
Generic caching function that returns the value of the resource $id, |
491 |
caching and regenerating as required. |
492 |
|
493 |
This function can block. |
494 |
|
495 |
=cut |
496 |
|
497 |
sub cache { |
498 |
my ($id, $src, $processversion, $process) = @_; |
499 |
|
500 |
my $meta = |
501 |
join "\x00", |
502 |
$processversion, |
503 |
map { |
504 |
aio_stat $_ |
505 |
and Carp::croak "$_: $!"; |
506 |
|
507 |
($_, (stat _)[7,9]) |
508 |
} @$src; |
509 |
|
510 |
my $dbmeta = db_get cache => "$id/meta"; |
511 |
if ($dbmeta ne $meta) { |
512 |
# changed, we may need to process |
513 |
|
514 |
my @data; |
515 |
my $md5; |
516 |
|
517 |
for (0 .. $#$src) { |
518 |
0 <= aio_load $src->[$_], $data[$_] |
519 |
or Carp::croak "$src->[$_]: $!"; |
520 |
} |
521 |
|
522 |
# if processing is expensive, check |
523 |
# checksum first |
524 |
if (1) { |
525 |
$md5 = |
526 |
join "\x00", |
527 |
$processversion, |
528 |
map { |
529 |
Coro::cede; |
530 |
($src->[$_], Digest::MD5::md5_hex $data[$_]) |
531 |
} 0.. $#$src; |
532 |
|
533 |
|
534 |
my $dbmd5 = db_get cache => "$id/md5"; |
535 |
if ($dbmd5 eq $md5) { |
536 |
db_put cache => "$id/meta", $meta; |
537 |
|
538 |
return db_get cache => "$id/data"; |
539 |
} |
540 |
} |
541 |
|
542 |
my $t1 = Time::HiRes::time; |
543 |
my $data = $process->(\@data); |
544 |
my $t2 = Time::HiRes::time; |
545 |
|
546 |
warn "cache: '$id' processed in ", $t2 - $t1, "s\n"; |
547 |
|
548 |
db_put cache => "$id/data", $data; |
549 |
db_put cache => "$id/md5" , $md5; |
550 |
db_put cache => "$id/meta", $meta; |
551 |
|
552 |
return $data; |
553 |
} |
554 |
|
555 |
db_get cache => "$id/data" |
556 |
} |
557 |
|
558 |
=item cf::datalog type => key => value, ... |
559 |
|
560 |
Log a datalog packet of the given type with the given key-value pairs. |
561 |
|
562 |
=cut |
563 |
|
564 |
sub datalog($@) { |
565 |
my ($type, %kv) = @_; |
566 |
warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type }); |
567 |
} |
568 |
|
569 |
=back |
570 |
|
571 |
=cut |
572 |
|
573 |
############################################################################# |
574 |
|
575 |
=head2 ATTACHABLE OBJECTS |
576 |
|
577 |
Many objects in crossfire are so-called attachable objects. That means you can |
578 |
attach callbacks/event handlers (a collection of which is called an "attachment") |
579 |
to it. All such attachable objects support the following methods. |
580 |
|
581 |
In the following description, CLASS can be any of C<global>, C<object> |
582 |
C<player>, C<client> or C<map> (i.e. the attachable objects in |
583 |
Crossfire TRT). |
584 |
|
585 |
=over 4 |
586 |
|
587 |
=item $attachable->attach ($attachment, key => $value...) |
588 |
|
589 |
=item $attachable->detach ($attachment) |
590 |
|
591 |
Attach/detach a pre-registered attachment to a specific object and give it |
592 |
the specified key/value pairs as arguments. |
593 |
|
594 |
Example, attach a minesweeper attachment to the given object, making it a |
595 |
10x10 minesweeper game: |
596 |
|
597 |
$obj->attach (minesweeper => width => 10, height => 10); |
598 |
|
599 |
=item $bool = $attachable->attached ($name) |
600 |
|
601 |
Checks wether the named attachment is currently attached to the object. |
602 |
|
603 |
=item cf::CLASS->attach ... |
604 |
|
605 |
=item cf::CLASS->detach ... |
606 |
|
607 |
Define an anonymous attachment and attach it to all objects of the given |
608 |
CLASS. See the next function for an explanation of its arguments. |
609 |
|
610 |
You can attach to global events by using the C<cf::global> class. |
611 |
|
612 |
Example, log all player logins: |
613 |
|
614 |
cf::player->attach ( |
615 |
on_login => sub { |
616 |
my ($pl) = @_; |
617 |
... |
618 |
}, |
619 |
); |
620 |
|
621 |
Example, attach to the jeweler skill: |
622 |
|
623 |
cf::object->attach ( |
624 |
type => cf::SKILL, |
625 |
subtype => cf::SK_JEWELER, |
626 |
on_use_skill => sub { |
627 |
my ($sk, $ob, $part, $dir, $msg) = @_; |
628 |
... |
629 |
}, |
630 |
); |
631 |
|
632 |
=item cf::CLASS::attachment $name, ... |
633 |
|
634 |
Register an attachment by C<$name> through which attachable objects of the |
635 |
given CLASS can refer to this attachment. |
636 |
|
637 |
Some classes such as crossfire maps and objects can specify attachments |
638 |
that are attached at load/instantiate time, thus the need for a name. |
639 |
|
640 |
These calls expect any number of the following handler/hook descriptions: |
641 |
|
642 |
=over 4 |
643 |
|
644 |
=item prio => $number |
645 |
|
646 |
Set the priority for all following handlers/hooks (unless overwritten |
647 |
by another C<prio> setting). Lower priority handlers get executed |
648 |
earlier. The default priority is C<0>, and many built-in handlers are |
649 |
registered at priority C<-1000>, so lower priorities should not be used |
650 |
unless you know what you are doing. |
651 |
|
652 |
=item type => $type |
653 |
|
654 |
(Only for C<< cf::object->attach >> calls), limits the attachment to the |
655 |
given type of objects only (the additional parameter C<subtype> can be |
656 |
used to further limit to the given subtype). |
657 |
|
658 |
=item on_I<event> => \&cb |
659 |
|
660 |
Call the given code reference whenever the named event happens (event is |
661 |
something like C<instantiate>, C<apply>, C<use_skill> and so on, and which |
662 |
handlers are recognised generally depends on the type of object these |
663 |
handlers attach to). |
664 |
|
665 |
See F<include/eventinc.h> for the full list of events supported, and their |
666 |
class. |
667 |
|
668 |
=item package => package:: |
669 |
|
670 |
Look for sub functions of the name C<< on_I<event> >> in the given |
671 |
package and register them. Only handlers for eevents supported by the |
672 |
object/class are recognised. |
673 |
|
674 |
=back |
675 |
|
676 |
Example, define an attachment called "sockpuppet" that calls the given |
677 |
event handler when a monster attacks: |
678 |
|
679 |
cf::object::attachment sockpuppet => |
680 |
on_skill_attack => sub { |
681 |
my ($self, $victim) = @_; |
682 |
... |
683 |
} |
684 |
} |
685 |
|
686 |
=item $attachable->valid |
687 |
|
688 |
Just because you have a perl object does not mean that the corresponding |
689 |
C-level object still exists. If you try to access an object that has no |
690 |
valid C counterpart anymore you get an exception at runtime. This method |
691 |
can be used to test for existence of the C object part without causing an |
692 |
exception. |
693 |
|
694 |
=cut |
695 |
|
696 |
# the following variables are defined in .xs and must not be re-created |
697 |
our @CB_GLOBAL = (); # registry for all global events |
698 |
our @CB_ATTACHABLE = (); # registry for all attachables |
699 |
our @CB_OBJECT = (); # all objects (should not be used except in emergency) |
700 |
our @CB_PLAYER = (); |
701 |
our @CB_CLIENT = (); |
702 |
our @CB_TYPE = (); # registry for type (cf-object class) based events |
703 |
our @CB_MAP = (); |
704 |
|
705 |
my %attachment; |
706 |
|
707 |
sub cf::attachable::thawer_merge { |
708 |
# simply override everything except _meta |
709 |
local $_[0]{_meta}; |
710 |
%{$_[0]} = %{$_[1]}; |
711 |
} |
712 |
|
713 |
sub _attach_cb($$$$) { |
714 |
my ($registry, $event, $prio, $cb) = @_; |
715 |
|
716 |
use sort 'stable'; |
717 |
|
718 |
$cb = [$prio, $cb]; |
719 |
|
720 |
@{$registry->[$event]} = sort |
721 |
{ $a->[0] cmp $b->[0] } |
722 |
@{$registry->[$event] || []}, $cb; |
723 |
} |
724 |
|
725 |
# hack |
726 |
my %attachable_klass = map +($_ => 1), KLASS_OBJECT, KLASS_CLIENT, KLASS_PLAYER, KLASS_MAP; |
727 |
|
728 |
# attach handles attaching event callbacks |
729 |
# the only thing the caller has to do is pass the correct |
730 |
# registry (== where the callback attaches to). |
731 |
sub _attach { |
732 |
my ($registry, $klass, @arg) = @_; |
733 |
|
734 |
my $object_type; |
735 |
my $prio = 0; |
736 |
my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT; |
737 |
|
738 |
#TODO: get rid of this hack |
739 |
if ($attachable_klass{$klass}) { |
740 |
%cb_id = (%cb_id, map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == KLASS_ATTACHABLE, 0 .. $#EVENT); |
741 |
} |
742 |
|
743 |
while (@arg) { |
744 |
my $type = shift @arg; |
745 |
|
746 |
if ($type eq "prio") { |
747 |
$prio = shift @arg; |
748 |
|
749 |
} elsif ($type eq "type") { |
750 |
$object_type = shift @arg; |
751 |
$registry = $CB_TYPE[$object_type] ||= []; |
752 |
|
753 |
} elsif ($type eq "subtype") { |
754 |
defined $object_type or Carp::croak "subtype specified without type"; |
755 |
my $object_subtype = shift @arg; |
756 |
$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= []; |
757 |
|
758 |
} elsif ($type eq "package") { |
759 |
my $pkg = shift @arg; |
760 |
|
761 |
while (my ($name, $id) = each %cb_id) { |
762 |
if (my $cb = $pkg->can ($name)) { |
763 |
_attach_cb $registry, $id, $prio, $cb; |
764 |
} |
765 |
} |
766 |
|
767 |
} elsif (exists $cb_id{$type}) { |
768 |
_attach_cb $registry, $cb_id{$type}, $prio, shift @arg; |
769 |
|
770 |
} elsif (ref $type) { |
771 |
warn "attaching objects not supported, ignoring.\n"; |
772 |
|
773 |
} else { |
774 |
shift @arg; |
775 |
warn "attach argument '$type' not supported, ignoring.\n"; |
776 |
} |
777 |
} |
778 |
} |
779 |
|
780 |
sub _object_attach { |
781 |
my ($obj, $name, %arg) = @_; |
782 |
|
783 |
return if exists $obj->{_attachment}{$name}; |
784 |
|
785 |
if (my $attach = $attachment{$name}) { |
786 |
my $registry = $obj->registry; |
787 |
|
788 |
for (@$attach) { |
789 |
my ($klass, @attach) = @$_; |
790 |
_attach $registry, $klass, @attach; |
791 |
} |
792 |
|
793 |
$obj->{$name} = \%arg; |
794 |
} else { |
795 |
warn "object uses attachment '$name' which is not available, postponing.\n"; |
796 |
} |
797 |
|
798 |
$obj->{_attachment}{$name} = undef; |
799 |
} |
800 |
|
801 |
sub cf::attachable::attach { |
802 |
if (ref $_[0]) { |
803 |
_object_attach @_; |
804 |
} else { |
805 |
_attach shift->_attach_registry, @_; |
806 |
} |
807 |
_recalc_want; |
808 |
}; |
809 |
|
810 |
# all those should be optimised |
811 |
sub cf::attachable::detach { |
812 |
my ($obj, $name) = @_; |
813 |
|
814 |
if (ref $obj) { |
815 |
delete $obj->{_attachment}{$name}; |
816 |
reattach ($obj); |
817 |
} else { |
818 |
Carp::croak "cannot, currently, detach class attachments"; |
819 |
} |
820 |
_recalc_want; |
821 |
}; |
822 |
|
823 |
sub cf::attachable::attached { |
824 |
my ($obj, $name) = @_; |
825 |
|
826 |
exists $obj->{_attachment}{$name} |
827 |
} |
828 |
|
829 |
for my $klass (qw(ATTACHABLE GLOBAL OBJECT PLAYER CLIENT MAP)) { |
830 |
eval "#line " . __LINE__ . " 'cf.pm' |
831 |
sub cf::\L$klass\E::_attach_registry { |
832 |
(\\\@CB_$klass, KLASS_$klass) |
833 |
} |
834 |
|
835 |
sub cf::\L$klass\E::attachment { |
836 |
my \$name = shift; |
837 |
|
838 |
\$attachment{\$name} = [[KLASS_$klass, \@_]]; |
839 |
} |
840 |
"; |
841 |
die if $@; |
842 |
} |
843 |
|
844 |
our $override; |
845 |
our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals? |
846 |
|
847 |
sub override { |
848 |
$override = 1; |
849 |
@invoke_results = (); |
850 |
} |
851 |
|
852 |
sub do_invoke { |
853 |
my $event = shift; |
854 |
my $callbacks = shift; |
855 |
|
856 |
@invoke_results = (); |
857 |
|
858 |
local $override; |
859 |
|
860 |
for (@$callbacks) { |
861 |
eval { &{$_->[1]} }; |
862 |
|
863 |
if ($@) { |
864 |
warn "$@"; |
865 |
warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n"; |
866 |
override; |
867 |
} |
868 |
|
869 |
return 1 if $override; |
870 |
} |
871 |
|
872 |
0 |
873 |
} |
874 |
|
875 |
=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...) |
876 |
|
877 |
=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...) |
878 |
|
879 |
Generate an object-specific event with the given arguments. |
880 |
|
881 |
This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be |
882 |
removed in future versions), and there is no public API to access override |
883 |
results (if you must, access C<@cf::invoke_results> directly). |
884 |
|
885 |
=back |
886 |
|
887 |
=cut |
888 |
|
889 |
############################################################################# |
890 |
# object support |
891 |
|
892 |
sub reattach { |
893 |
# basically do the same as instantiate, without calling instantiate |
894 |
my ($obj) = @_; |
895 |
|
896 |
bless $obj, ref $obj; # re-bless in case extensions have been reloaded |
897 |
|
898 |
my $registry = $obj->registry; |
899 |
|
900 |
@$registry = (); |
901 |
|
902 |
delete $obj->{_attachment} unless scalar keys %{ $obj->{_attachment} || {} }; |
903 |
|
904 |
for my $name (keys %{ $obj->{_attachment} || {} }) { |
905 |
if (my $attach = $attachment{$name}) { |
906 |
for (@$attach) { |
907 |
my ($klass, @attach) = @$_; |
908 |
_attach $registry, $klass, @attach; |
909 |
} |
910 |
} else { |
911 |
warn "object uses attachment '$name' that is not available, postponing.\n"; |
912 |
} |
913 |
} |
914 |
} |
915 |
|
916 |
cf::attachable->attach ( |
917 |
prio => -1000000, |
918 |
on_instantiate => sub { |
919 |
my ($obj, $data) = @_; |
920 |
|
921 |
$data = from_json $data; |
922 |
|
923 |
for (@$data) { |
924 |
my ($name, $args) = @$_; |
925 |
|
926 |
$obj->attach ($name, %{$args || {} }); |
927 |
} |
928 |
}, |
929 |
on_reattach => \&reattach, |
930 |
on_clone => sub { |
931 |
my ($src, $dst) = @_; |
932 |
|
933 |
@{$dst->registry} = @{$src->registry}; |
934 |
|
935 |
%$dst = %$src; |
936 |
|
937 |
%{$dst->{_attachment}} = %{$src->{_attachment}} |
938 |
if exists $src->{_attachment}; |
939 |
}, |
940 |
); |
941 |
|
942 |
sub object_freezer_save { |
943 |
my ($filename, $rdata, $objs) = @_; |
944 |
|
945 |
sync_job { |
946 |
if (length $$rdata) { |
947 |
warn sprintf "saving %s (%d,%d)\n", |
948 |
$filename, length $$rdata, scalar @$objs; |
949 |
|
950 |
if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) { |
951 |
chmod SAVE_MODE, $fh; |
952 |
aio_write $fh, 0, (length $$rdata), $$rdata, 0; |
953 |
aio_fsync $fh if $cf::USE_FSYNC; |
954 |
close $fh; |
955 |
|
956 |
if (@$objs) { |
957 |
if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) { |
958 |
chmod SAVE_MODE, $fh; |
959 |
my $data = Storable::nfreeze { version => 1, objs => $objs }; |
960 |
aio_write $fh, 0, (length $data), $data, 0; |
961 |
aio_fsync $fh if $cf::USE_FSYNC; |
962 |
close $fh; |
963 |
aio_rename "$filename.pst~", "$filename.pst"; |
964 |
} |
965 |
} else { |
966 |
aio_unlink "$filename.pst"; |
967 |
} |
968 |
|
969 |
aio_rename "$filename~", $filename; |
970 |
} else { |
971 |
warn "FATAL: $filename~: $!\n"; |
972 |
} |
973 |
} else { |
974 |
aio_unlink $filename; |
975 |
aio_unlink "$filename.pst"; |
976 |
} |
977 |
} |
978 |
} |
979 |
|
980 |
sub object_freezer_as_string { |
981 |
my ($rdata, $objs) = @_; |
982 |
|
983 |
use Data::Dumper; |
984 |
|
985 |
$$rdata . Dumper $objs |
986 |
} |
987 |
|
988 |
sub object_thawer_load { |
989 |
my ($filename) = @_; |
990 |
|
991 |
my ($data, $av); |
992 |
|
993 |
(aio_load $filename, $data) >= 0 |
994 |
or return; |
995 |
|
996 |
unless (aio_stat "$filename.pst") { |
997 |
(aio_load "$filename.pst", $av) >= 0 |
998 |
or return; |
999 |
$av = eval { (Storable::thaw $av)->{objs} }; |
1000 |
} |
1001 |
|
1002 |
warn sprintf "loading %s (%d)\n", |
1003 |
$filename, length $data, scalar @{$av || []}; |
1004 |
return ($data, $av); |
1005 |
} |
1006 |
|
1007 |
=head2 COMMAND CALLBACKS |
1008 |
|
1009 |
=over 4 |
1010 |
|
1011 |
=cut |
1012 |
|
1013 |
############################################################################# |
1014 |
# command handling &c |
1015 |
|
1016 |
=item cf::register_command $name => \&callback($ob,$args); |
1017 |
|
1018 |
Register a callback for execution when the client sends the user command |
1019 |
$name. |
1020 |
|
1021 |
=cut |
1022 |
|
1023 |
sub register_command { |
1024 |
my ($name, $cb) = @_; |
1025 |
|
1026 |
my $caller = caller; |
1027 |
#warn "registering command '$name/$time' to '$caller'"; |
1028 |
|
1029 |
push @{ $COMMAND{$name} }, [$caller, $cb]; |
1030 |
} |
1031 |
|
1032 |
=item cf::register_extcmd $name => \&callback($pl,$packet); |
1033 |
|
1034 |
Register a callback fro execution when the client sends an extcmd packet. |
1035 |
|
1036 |
If the callback returns something, it is sent back as if reply was being |
1037 |
called. |
1038 |
|
1039 |
=cut |
1040 |
|
1041 |
sub register_extcmd { |
1042 |
my ($name, $cb) = @_; |
1043 |
|
1044 |
$EXTCMD{$name} = $cb; |
1045 |
} |
1046 |
|
1047 |
cf::player->attach ( |
1048 |
on_command => sub { |
1049 |
my ($pl, $name, $params) = @_; |
1050 |
|
1051 |
my $cb = $COMMAND{$name} |
1052 |
or return; |
1053 |
|
1054 |
for my $cmd (@$cb) { |
1055 |
$cmd->[1]->($pl->ob, $params); |
1056 |
} |
1057 |
|
1058 |
cf::override; |
1059 |
}, |
1060 |
on_extcmd => sub { |
1061 |
my ($pl, $buf) = @_; |
1062 |
|
1063 |
my $msg = eval { from_json $buf }; |
1064 |
|
1065 |
if (ref $msg) { |
1066 |
if (my $cb = $EXTCMD{$msg->{msgtype}}) { |
1067 |
if (my %reply = $cb->($pl, $msg)) { |
1068 |
$pl->ext_reply ($msg->{msgid}, %reply); |
1069 |
} |
1070 |
} |
1071 |
} else { |
1072 |
warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n"; |
1073 |
} |
1074 |
|
1075 |
cf::override; |
1076 |
}, |
1077 |
); |
1078 |
|
1079 |
sub load_extensions { |
1080 |
cf::sync_job { |
1081 |
my %todo; |
1082 |
|
1083 |
for my $path (<$LIBDIR/*.ext>) { |
1084 |
next unless -r $path; |
1085 |
|
1086 |
$path =~ /([^\/\\]+)\.ext$/ or die "$path"; |
1087 |
my $base = $1; |
1088 |
my $pkg = $1; |
1089 |
$pkg =~ s/[^[:word:]]/_/g; |
1090 |
$pkg = "ext::$pkg"; |
1091 |
|
1092 |
open my $fh, "<:utf8", $path |
1093 |
or die "$path: $!"; |
1094 |
|
1095 |
my $source = do { local $/; <$fh> }; |
1096 |
|
1097 |
my %ext = ( |
1098 |
path => $path, |
1099 |
base => $base, |
1100 |
pkg => $pkg, |
1101 |
); |
1102 |
|
1103 |
$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 } |
1104 |
if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m; |
1105 |
|
1106 |
$ext{source} = |
1107 |
"package $pkg; use strict; use utf8;\n" |
1108 |
. "#line 1 \"$path\"\n{\n" |
1109 |
. $source |
1110 |
. "\n};\n1"; |
1111 |
|
1112 |
$todo{$base} = \%ext; |
1113 |
} |
1114 |
|
1115 |
my %done; |
1116 |
while (%todo) { |
1117 |
my $progress; |
1118 |
|
1119 |
while (my ($k, $v) = each %todo) { |
1120 |
for (split /,\s*/, $v->{meta}{depends}) { |
1121 |
goto skip |
1122 |
unless exists $done{$_}; |
1123 |
} |
1124 |
|
1125 |
warn "... loading '$k' into '$v->{pkg}'\n"; |
1126 |
|
1127 |
unless (eval $v->{source}) { |
1128 |
my $msg = $@ ? "$v->{path}: $@\n" |
1129 |
: "$v->{base}: extension inactive.\n"; |
1130 |
|
1131 |
if (exists $v->{meta}{mandatory}) { |
1132 |
warn $msg; |
1133 |
warn "mandatory extension failed to load, exiting.\n"; |
1134 |
exit 1; |
1135 |
} |
1136 |
|
1137 |
warn $msg; |
1138 |
} |
1139 |
|
1140 |
$done{$k} = delete $todo{$k}; |
1141 |
push @EXTS, $v->{pkg}; |
1142 |
$progress = 1; |
1143 |
} |
1144 |
|
1145 |
skip: |
1146 |
die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n" |
1147 |
unless $progress; |
1148 |
} |
1149 |
}; |
1150 |
} |
1151 |
|
1152 |
############################################################################# |
1153 |
|
1154 |
=back |
1155 |
|
1156 |
=head2 CORE EXTENSIONS |
1157 |
|
1158 |
Functions and methods that extend core crossfire objects. |
1159 |
|
1160 |
=cut |
1161 |
|
1162 |
package cf::player; |
1163 |
|
1164 |
use Coro::AIO; |
1165 |
|
1166 |
=head3 cf::player |
1167 |
|
1168 |
=over 4 |
1169 |
|
1170 |
=item cf::player::find $login |
1171 |
|
1172 |
Returns the given player object, loading it if necessary (might block). |
1173 |
|
1174 |
=cut |
1175 |
|
1176 |
sub playerdir($) { |
1177 |
"$PLAYERDIR/" |
1178 |
. (ref $_[0] ? $_[0]->ob->name : $_[0]) |
1179 |
} |
1180 |
|
1181 |
sub path($) { |
1182 |
my $login = ref $_[0] ? $_[0]->ob->name : $_[0]; |
1183 |
|
1184 |
(playerdir $login) . "/playerdata" |
1185 |
} |
1186 |
|
1187 |
sub find_active($) { |
1188 |
$cf::PLAYER{$_[0]} |
1189 |
and $cf::PLAYER{$_[0]}->active |
1190 |
and $cf::PLAYER{$_[0]} |
1191 |
} |
1192 |
|
1193 |
sub exists($) { |
1194 |
my ($login) = @_; |
1195 |
|
1196 |
$cf::PLAYER{$login} |
1197 |
or cf::sync_job { !aio_stat path $login } |
1198 |
} |
1199 |
|
1200 |
sub find($) { |
1201 |
return $cf::PLAYER{$_[0]} || do { |
1202 |
my $login = $_[0]; |
1203 |
|
1204 |
my $guard = cf::lock_acquire "user_find:$login"; |
1205 |
|
1206 |
$cf::PLAYER{$_[0]} || do { |
1207 |
# rename old playerfiles to new ones |
1208 |
#TODO: remove when no longer required |
1209 |
aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst"; |
1210 |
aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata"; |
1211 |
aio_unlink +(playerdir $login) . "/$login.pl.pst"; |
1212 |
aio_unlink +(playerdir $login) . "/$login.pl"; |
1213 |
|
1214 |
my $pl = load_pl path $login |
1215 |
or return; |
1216 |
$cf::PLAYER{$login} = $pl |
1217 |
} |
1218 |
} |
1219 |
} |
1220 |
|
1221 |
sub save($) { |
1222 |
my ($pl) = @_; |
1223 |
|
1224 |
return if $pl->{deny_save}; |
1225 |
|
1226 |
my $path = path $pl; |
1227 |
my $guard = cf::lock_acquire "user_save:$path"; |
1228 |
|
1229 |
return if $pl->{deny_save}; |
1230 |
|
1231 |
aio_mkdir playerdir $pl, 0770; |
1232 |
$pl->{last_save} = $cf::RUNTIME; |
1233 |
|
1234 |
$pl->save_pl ($path); |
1235 |
Coro::cede; |
1236 |
} |
1237 |
|
1238 |
sub new($) { |
1239 |
my ($login) = @_; |
1240 |
|
1241 |
my $self = create; |
1242 |
|
1243 |
$self->ob->name ($login); |
1244 |
$self->{deny_save} = 1; |
1245 |
|
1246 |
$cf::PLAYER{$login} = $self; |
1247 |
|
1248 |
$self |
1249 |
} |
1250 |
|
1251 |
=item $pl->quit_character |
1252 |
|
1253 |
Nukes the player without looking back. If logged in, the connection will |
1254 |
be destroyed. May block for a long time. |
1255 |
|
1256 |
=cut |
1257 |
|
1258 |
sub quit_character { |
1259 |
my ($pl) = @_; |
1260 |
|
1261 |
my $name = $pl->ob->name; |
1262 |
|
1263 |
$pl->{deny_save} = 1; |
1264 |
$pl->password ("*"); # this should lock out the player until we nuked the dir |
1265 |
|
1266 |
$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active; |
1267 |
$pl->deactivate; |
1268 |
$pl->invoke (cf::EVENT_PLAYER_QUIT); |
1269 |
$pl->ns->destroy if $pl->ns; |
1270 |
|
1271 |
my $path = playerdir $pl; |
1272 |
my $temp = "$path~$cf::RUNTIME~deleting~"; |
1273 |
aio_rename $path, $temp; |
1274 |
delete $cf::PLAYER{$pl->ob->name}; |
1275 |
$pl->destroy; |
1276 |
|
1277 |
my $prefix = qr<^~\Q$name\E/>; |
1278 |
|
1279 |
# nuke player maps |
1280 |
$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP; |
1281 |
|
1282 |
IO::AIO::aio_rmtree $temp; |
1283 |
} |
1284 |
|
1285 |
=item $pl->kick |
1286 |
|
1287 |
Kicks a player out of the game. This destroys the connection. |
1288 |
|
1289 |
=cut |
1290 |
|
1291 |
sub kick { |
1292 |
my ($pl, $kicker) = @_; |
1293 |
|
1294 |
$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker); |
1295 |
$pl->killer ("kicked"); |
1296 |
$pl->ns->destroy; |
1297 |
} |
1298 |
|
1299 |
=item cf::player::list_logins |
1300 |
|
1301 |
Returns am arrayref of all valid playernames in the system, can take a |
1302 |
while and may block, so not sync_job-capable, ever. |
1303 |
|
1304 |
=cut |
1305 |
|
1306 |
sub list_logins { |
1307 |
my $dirs = aio_readdir $PLAYERDIR |
1308 |
or return []; |
1309 |
|
1310 |
my @logins; |
1311 |
|
1312 |
for my $login (@$dirs) { |
1313 |
my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next; |
1314 |
aio_read $fh, 0, 512, my $buf, 0 or next; |
1315 |
$buf !~ /^password -------------$/m or next; # official not-valid tag |
1316 |
|
1317 |
utf8::decode $login; |
1318 |
push @logins, $login; |
1319 |
} |
1320 |
|
1321 |
\@logins |
1322 |
} |
1323 |
|
1324 |
=item $player->maps |
1325 |
|
1326 |
Returns an arrayref of map paths that are private for this |
1327 |
player. May block. |
1328 |
|
1329 |
=cut |
1330 |
|
1331 |
sub maps($) { |
1332 |
my ($pl) = @_; |
1333 |
|
1334 |
$pl = ref $pl ? $pl->ob->name : $pl; |
1335 |
|
1336 |
my $files = aio_readdir playerdir $pl |
1337 |
or return; |
1338 |
|
1339 |
my @paths; |
1340 |
|
1341 |
for (@$files) { |
1342 |
utf8::decode $_; |
1343 |
next if /\.(?:pl|pst)$/; |
1344 |
next unless /^$PATH_SEP/o; |
1345 |
|
1346 |
push @paths, cf::map::normalise "~$pl/$_"; |
1347 |
} |
1348 |
|
1349 |
\@paths |
1350 |
} |
1351 |
|
1352 |
=item $player->ext_reply ($msgid, %msg) |
1353 |
|
1354 |
Sends an ext reply to the player. |
1355 |
|
1356 |
=cut |
1357 |
|
1358 |
sub ext_reply($$%) { |
1359 |
my ($self, $id, %msg) = @_; |
1360 |
|
1361 |
$msg{msgid} = $id; |
1362 |
|
1363 |
$self->send ("ext " . cf::to_json \%msg); |
1364 |
} |
1365 |
|
1366 |
=item $player->ext_event ($type, %msg) |
1367 |
|
1368 |
Sends an ext event to the client. |
1369 |
|
1370 |
=cut |
1371 |
|
1372 |
sub ext_event($$%) { |
1373 |
my ($self, $type, %msg) = @_; |
1374 |
|
1375 |
$self->ns->ext_event ($type, %msg); |
1376 |
} |
1377 |
|
1378 |
=head3 cf::region |
1379 |
|
1380 |
=over 4 |
1381 |
|
1382 |
=cut |
1383 |
|
1384 |
package cf::region; |
1385 |
|
1386 |
=item cf::region::find_by_path $path |
1387 |
|
1388 |
Tries to decuce the likely region for a map knowing only its path. |
1389 |
|
1390 |
=cut |
1391 |
|
1392 |
sub find_by_path($) { |
1393 |
my ($path) = @_; |
1394 |
|
1395 |
my ($match, $specificity); |
1396 |
|
1397 |
for my $region (list) { |
1398 |
if ($region->match && $path =~ $region->match) { |
1399 |
($match, $specificity) = ($region, $region->specificity) |
1400 |
if $region->specificity > $specificity; |
1401 |
} |
1402 |
} |
1403 |
|
1404 |
$match |
1405 |
} |
1406 |
|
1407 |
=back |
1408 |
|
1409 |
=head3 cf::map |
1410 |
|
1411 |
=over 4 |
1412 |
|
1413 |
=cut |
1414 |
|
1415 |
package cf::map; |
1416 |
|
1417 |
use Fcntl; |
1418 |
use Coro::AIO; |
1419 |
|
1420 |
use overload |
1421 |
'""' => \&as_string, |
1422 |
fallback => 1; |
1423 |
|
1424 |
our $MAX_RESET = 3600; |
1425 |
our $DEFAULT_RESET = 3000; |
1426 |
|
1427 |
sub generate_random_map { |
1428 |
my ($self, $rmp) = @_; |
1429 |
# mit "rum" bekleckern, nicht |
1430 |
$self->_create_random_map ( |
1431 |
$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle}, |
1432 |
$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, |
1433 |
$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map}, |
1434 |
$rmp->{exit_on_final_map}, |
1435 |
$rmp->{xsize}, $rmp->{ysize}, |
1436 |
$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3}, |
1437 |
$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase}, |
1438 |
$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation}, |
1439 |
$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp}, |
1440 |
$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used}, |
1441 |
(cf::region::find $rmp->{region}), $rmp->{custom} |
1442 |
) |
1443 |
} |
1444 |
|
1445 |
=item cf::map->register ($regex, $prio) |
1446 |
|
1447 |
Register a handler for the map path matching the given regex at the |
1448 |
givne priority (higher is better, built-in handlers have priority 0, the |
1449 |
default). |
1450 |
|
1451 |
=cut |
1452 |
|
1453 |
sub register { |
1454 |
my (undef, $regex, $prio) = @_; |
1455 |
my $pkg = caller; |
1456 |
|
1457 |
no strict; |
1458 |
push @{"$pkg\::ISA"}, __PACKAGE__; |
1459 |
|
1460 |
$EXT_MAP{$pkg} = [$prio, qr<$regex>]; |
1461 |
} |
1462 |
|
1463 |
# also paths starting with '/' |
1464 |
$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}]; |
1465 |
|
1466 |
sub thawer_merge { |
1467 |
my ($self, $merge) = @_; |
1468 |
|
1469 |
# we have to keep some variables in memory intact |
1470 |
local $self->{path}; |
1471 |
local $self->{load_path}; |
1472 |
|
1473 |
$self->SUPER::thawer_merge ($merge); |
1474 |
} |
1475 |
|
1476 |
sub normalise { |
1477 |
my ($path, $base) = @_; |
1478 |
|
1479 |
$path = "$path"; # make sure its a string |
1480 |
|
1481 |
$path =~ s/\.map$//; |
1482 |
|
1483 |
# map plan: |
1484 |
# |
1485 |
# /! non-realised random map exit (special hack!) |
1486 |
# {... are special paths that are not being touched |
1487 |
# ?xxx/... are special absolute paths |
1488 |
# ?random/... random maps |
1489 |
# /... normal maps |
1490 |
# ~user/... per-player map of a specific user |
1491 |
|
1492 |
$path =~ s/$PATH_SEP/\//go; |
1493 |
|
1494 |
# treat it as relative path if it starts with |
1495 |
# something that looks reasonable |
1496 |
if ($path =~ m{^(?:\./|\.\./|\w)}) { |
1497 |
$base or Carp::carp "normalise called with relative path and no base: '$path'"; |
1498 |
|
1499 |
$base =~ s{[^/]+/?$}{}; |
1500 |
$path = "$base/$path"; |
1501 |
} |
1502 |
|
1503 |
for ($path) { |
1504 |
redo if s{//}{/}; |
1505 |
redo if s{/\.?/}{/}; |
1506 |
redo if s{/[^/]+/\.\./}{/}; |
1507 |
} |
1508 |
|
1509 |
$path |
1510 |
} |
1511 |
|
1512 |
sub new_from_path { |
1513 |
my (undef, $path, $base) = @_; |
1514 |
|
1515 |
return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object |
1516 |
|
1517 |
$path = normalise $path, $base; |
1518 |
|
1519 |
for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) { |
1520 |
if ($path =~ $EXT_MAP{$pkg}[1]) { |
1521 |
my $self = bless cf::map::new, $pkg; |
1522 |
$self->{path} = $path; $self->path ($path); |
1523 |
$self->init; # pass $1 etc. |
1524 |
return $self; |
1525 |
} |
1526 |
} |
1527 |
|
1528 |
Carp::carp "unable to resolve path '$path' (base '$base')."; |
1529 |
() |
1530 |
} |
1531 |
|
1532 |
sub init { |
1533 |
my ($self) = @_; |
1534 |
|
1535 |
$self |
1536 |
} |
1537 |
|
1538 |
sub as_string { |
1539 |
my ($self) = @_; |
1540 |
|
1541 |
"$self->{path}" |
1542 |
} |
1543 |
|
1544 |
# the displayed name, this is a one way mapping |
1545 |
sub visible_name { |
1546 |
&as_string |
1547 |
} |
1548 |
|
1549 |
# the original (read-only) location |
1550 |
sub load_path { |
1551 |
my ($self) = @_; |
1552 |
|
1553 |
"$MAPDIR/$self->{path}.map" |
1554 |
} |
1555 |
|
1556 |
# the temporary/swap location |
1557 |
sub save_path { |
1558 |
my ($self) = @_; |
1559 |
|
1560 |
(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; |
1561 |
"$TMPDIR/$path.map" |
1562 |
} |
1563 |
|
1564 |
# the unique path, undef == no special unique path |
1565 |
sub uniq_path { |
1566 |
my ($self) = @_; |
1567 |
|
1568 |
(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g; |
1569 |
"$UNIQUEDIR/$path" |
1570 |
} |
1571 |
|
1572 |
# and all this just because we cannot iterate over |
1573 |
# all maps in C++... |
1574 |
sub change_all_map_light { |
1575 |
my ($change) = @_; |
1576 |
|
1577 |
$_->change_map_light ($change) |
1578 |
for grep $_->outdoor, values %cf::MAP; |
1579 |
} |
1580 |
|
1581 |
sub decay_objects { |
1582 |
my ($self) = @_; |
1583 |
|
1584 |
return if $self->{deny_reset}; |
1585 |
|
1586 |
$self->do_decay_objects; |
1587 |
} |
1588 |
|
1589 |
sub unlink_save { |
1590 |
my ($self) = @_; |
1591 |
|
1592 |
utf8::encode (my $save = $self->save_path); |
1593 |
IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save; |
1594 |
IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst"; |
1595 |
} |
1596 |
|
1597 |
sub load_header_from($) { |
1598 |
my ($self, $path) = @_; |
1599 |
|
1600 |
utf8::encode $path; |
1601 |
#aio_open $path, O_RDONLY, 0 |
1602 |
# or return; |
1603 |
|
1604 |
$self->_load_header ($path) |
1605 |
or return; |
1606 |
|
1607 |
$self->{load_path} = $path; |
1608 |
|
1609 |
1 |
1610 |
} |
1611 |
|
1612 |
sub load_header_orig { |
1613 |
my ($self) = @_; |
1614 |
|
1615 |
$self->load_header_from ($self->load_path) |
1616 |
} |
1617 |
|
1618 |
sub load_header_temp { |
1619 |
my ($self) = @_; |
1620 |
|
1621 |
$self->load_header_from ($self->save_path) |
1622 |
} |
1623 |
|
1624 |
sub prepare_temp { |
1625 |
my ($self) = @_; |
1626 |
|
1627 |
$self->last_access ((delete $self->{last_access}) |
1628 |
|| $cf::RUNTIME); #d# |
1629 |
# safety |
1630 |
$self->{instantiate_time} = $cf::RUNTIME |
1631 |
if $self->{instantiate_time} > $cf::RUNTIME; |
1632 |
} |
1633 |
|
1634 |
sub prepare_orig { |
1635 |
my ($self) = @_; |
1636 |
|
1637 |
$self->{load_original} = 1; |
1638 |
$self->{instantiate_time} = $cf::RUNTIME; |
1639 |
$self->last_access ($cf::RUNTIME); |
1640 |
$self->instantiate; |
1641 |
} |
1642 |
|
1643 |
sub load_header { |
1644 |
my ($self) = @_; |
1645 |
|
1646 |
if ($self->load_header_temp) { |
1647 |
$self->prepare_temp; |
1648 |
} else { |
1649 |
$self->load_header_orig |
1650 |
or return; |
1651 |
$self->prepare_orig; |
1652 |
} |
1653 |
|
1654 |
$self->{deny_reset} = 1 |
1655 |
if $self->no_reset; |
1656 |
|
1657 |
$self->default_region (cf::region::find_by_path $self->{path}) |
1658 |
unless $self->default_region; |
1659 |
|
1660 |
1 |
1661 |
} |
1662 |
|
1663 |
sub find; |
1664 |
sub find { |
1665 |
my ($path, $origin) = @_; |
1666 |
|
1667 |
$path = normalise $path, $origin && $origin->path; |
1668 |
|
1669 |
cf::lock_wait "map_find:$path"; |
1670 |
|
1671 |
$cf::MAP{$path} || do { |
1672 |
my $guard = cf::lock_acquire "map_find:$path"; |
1673 |
my $map = new_from_path cf::map $path |
1674 |
or return; |
1675 |
|
1676 |
$map->{last_save} = $cf::RUNTIME; |
1677 |
|
1678 |
$map->load_header |
1679 |
or return; |
1680 |
|
1681 |
if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?) |
1682 |
# doing this can freeze the server in a sync job, obviously |
1683 |
#$cf::WAIT_FOR_TICK->wait; |
1684 |
$map->reset; |
1685 |
undef $guard; |
1686 |
return find $path; |
1687 |
} |
1688 |
|
1689 |
$cf::MAP{$path} = $map |
1690 |
} |
1691 |
} |
1692 |
|
1693 |
sub pre_load { } |
1694 |
sub post_load { } |
1695 |
|
1696 |
sub load { |
1697 |
my ($self) = @_; |
1698 |
|
1699 |
local $self->{deny_reset} = 1; # loading can take a long time |
1700 |
|
1701 |
my $path = $self->{path}; |
1702 |
|
1703 |
{ |
1704 |
my $guard = cf::lock_acquire "map_load:$path"; |
1705 |
|
1706 |
return if $self->in_memory != cf::MAP_SWAPPED; |
1707 |
|
1708 |
$self->in_memory (cf::MAP_LOADING); |
1709 |
|
1710 |
$self->alloc; |
1711 |
|
1712 |
$self->pre_load; |
1713 |
Coro::cede; |
1714 |
|
1715 |
$self->_load_objects ($self->{load_path}, 1) |
1716 |
or return; |
1717 |
|
1718 |
$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) |
1719 |
if delete $self->{load_original}; |
1720 |
|
1721 |
if (my $uniq = $self->uniq_path) { |
1722 |
utf8::encode $uniq; |
1723 |
if (aio_open $uniq, O_RDONLY, 0) { |
1724 |
$self->clear_unique_items; |
1725 |
$self->_load_objects ($uniq, 0); |
1726 |
} |
1727 |
} |
1728 |
|
1729 |
Coro::cede; |
1730 |
# now do the right thing for maps |
1731 |
$self->link_multipart_objects; |
1732 |
$self->difficulty ($self->estimate_difficulty) |
1733 |
unless $self->difficulty; |
1734 |
Coro::cede; |
1735 |
|
1736 |
unless ($self->{deny_activate}) { |
1737 |
$self->decay_objects; |
1738 |
$self->fix_auto_apply; |
1739 |
$self->update_buttons; |
1740 |
Coro::cede; |
1741 |
$self->set_darkness_map; |
1742 |
Coro::cede; |
1743 |
$self->activate; |
1744 |
} |
1745 |
|
1746 |
$self->in_memory (cf::MAP_IN_MEMORY); |
1747 |
} |
1748 |
|
1749 |
$self->post_load; |
1750 |
} |
1751 |
|
1752 |
sub customise_for { |
1753 |
my ($self, $ob) = @_; |
1754 |
|
1755 |
return find "~" . $ob->name . "/" . $self->{path} |
1756 |
if $self->per_player; |
1757 |
|
1758 |
# return find "?party/" . $ob->name . "/" . $self->{path} |
1759 |
# if $self->per_party; |
1760 |
|
1761 |
$self |
1762 |
} |
1763 |
|
1764 |
# find and load all maps in the 3x3 area around a map |
1765 |
sub load_diag { |
1766 |
my ($map) = @_; |
1767 |
|
1768 |
my @diag; # diagonal neighbours |
1769 |
|
1770 |
for (0 .. 3) { |
1771 |
my $neigh = $map->tile_path ($_) |
1772 |
or next; |
1773 |
$neigh = find $neigh, $map |
1774 |
or next; |
1775 |
$neigh->load; |
1776 |
|
1777 |
push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh], |
1778 |
[$neigh->tile_path (($_ + 1) % 4), $neigh]; |
1779 |
} |
1780 |
|
1781 |
for (@diag) { |
1782 |
my $neigh = find @$_ |
1783 |
or next; |
1784 |
$neigh->load; |
1785 |
} |
1786 |
} |
1787 |
|
1788 |
sub find_sync { |
1789 |
my ($path, $origin) = @_; |
1790 |
|
1791 |
cf::sync_job { find $path, $origin } |
1792 |
} |
1793 |
|
1794 |
sub do_load_sync { |
1795 |
my ($map) = @_; |
1796 |
|
1797 |
cf::sync_job { $map->load }; |
1798 |
} |
1799 |
|
1800 |
our %MAP_PREFETCH; |
1801 |
our $MAP_PREFETCHER = undef; |
1802 |
|
1803 |
sub find_async { |
1804 |
my ($path, $origin) = @_; |
1805 |
|
1806 |
$path = normalise $path, $origin && $origin->{path}; |
1807 |
|
1808 |
if (my $map = $cf::MAP{$path}) { |
1809 |
return $map if $map->in_memory == cf::MAP_IN_MEMORY; |
1810 |
} |
1811 |
|
1812 |
undef $MAP_PREFETCH{$path}; |
1813 |
$MAP_PREFETCHER ||= cf::async { |
1814 |
while (%MAP_PREFETCH) { |
1815 |
for my $path (keys %MAP_PREFETCH) { |
1816 |
my $map = find $path |
1817 |
or next; |
1818 |
$map->load; |
1819 |
|
1820 |
delete $MAP_PREFETCH{$path}; |
1821 |
} |
1822 |
} |
1823 |
undef $MAP_PREFETCHER; |
1824 |
}; |
1825 |
$MAP_PREFETCHER->prio (6); |
1826 |
|
1827 |
() |
1828 |
} |
1829 |
|
1830 |
sub save { |
1831 |
my ($self) = @_; |
1832 |
|
1833 |
my $lock = cf::lock_acquire "map_data:" . $self->path; |
1834 |
|
1835 |
$self->{last_save} = $cf::RUNTIME; |
1836 |
|
1837 |
return unless $self->dirty; |
1838 |
|
1839 |
my $save = $self->save_path; utf8::encode $save; |
1840 |
my $uniq = $self->uniq_path; utf8::encode $uniq; |
1841 |
|
1842 |
$self->{load_path} = $save; |
1843 |
|
1844 |
return if $self->{deny_save}; |
1845 |
|
1846 |
local $self->{last_access} = $self->last_access;#d# |
1847 |
|
1848 |
cf::async { |
1849 |
$_->contr->save for $self->players; |
1850 |
}; |
1851 |
|
1852 |
if ($uniq) { |
1853 |
$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS); |
1854 |
$self->_save_objects ($uniq, cf::IO_UNIQUES); |
1855 |
} else { |
1856 |
$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES); |
1857 |
} |
1858 |
} |
1859 |
|
1860 |
sub swap_out { |
1861 |
my ($self) = @_; |
1862 |
|
1863 |
# save first because save cedes |
1864 |
$self->save; |
1865 |
|
1866 |
my $lock = cf::lock_acquire "map_data:" . $self->path; |
1867 |
|
1868 |
return if $self->players; |
1869 |
return if $self->in_memory != cf::MAP_IN_MEMORY; |
1870 |
return if $self->{deny_save}; |
1871 |
|
1872 |
$self->clear; |
1873 |
$self->in_memory (cf::MAP_SWAPPED); |
1874 |
} |
1875 |
|
1876 |
sub reset_at { |
1877 |
my ($self) = @_; |
1878 |
|
1879 |
# TODO: safety, remove and allow resettable per-player maps |
1880 |
return 1e99 if $self->{deny_reset}; |
1881 |
|
1882 |
my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access; |
1883 |
my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET; |
1884 |
|
1885 |
$time + $to |
1886 |
} |
1887 |
|
1888 |
sub should_reset { |
1889 |
my ($self) = @_; |
1890 |
|
1891 |
$self->reset_at <= $cf::RUNTIME |
1892 |
} |
1893 |
|
1894 |
sub reset { |
1895 |
my ($self) = @_; |
1896 |
|
1897 |
my $lock = cf::lock_acquire "map_data:$self->{path}"; |
1898 |
|
1899 |
return if $self->players; |
1900 |
|
1901 |
warn "resetting map ", $self->path; |
1902 |
|
1903 |
$self->in_memory (cf::MAP_SWAPPED); |
1904 |
|
1905 |
# need to save uniques path |
1906 |
unless ($self->{deny_save}) { |
1907 |
my $uniq = $self->uniq_path; utf8::encode $uniq; |
1908 |
|
1909 |
$self->_save_objects ($uniq, cf::IO_UNIQUES) |
1910 |
if $uniq; |
1911 |
} |
1912 |
|
1913 |
delete $cf::MAP{$self->path}; |
1914 |
|
1915 |
$self->clear; |
1916 |
|
1917 |
$_->clear_links_to ($self) for values %cf::MAP; |
1918 |
|
1919 |
$self->unlink_save; |
1920 |
$self->destroy; |
1921 |
} |
1922 |
|
1923 |
my $nuke_counter = "aaaa"; |
1924 |
|
1925 |
sub nuke { |
1926 |
my ($self) = @_; |
1927 |
|
1928 |
delete $cf::MAP{$self->path}; |
1929 |
|
1930 |
$self->unlink_save; |
1931 |
|
1932 |
bless $self, "cf::map"; |
1933 |
delete $self->{deny_reset}; |
1934 |
$self->{deny_save} = 1; |
1935 |
$self->reset_timeout (1); |
1936 |
$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++)); |
1937 |
|
1938 |
$cf::MAP{$self->path} = $self; |
1939 |
|
1940 |
$self->reset; # polite request, might not happen |
1941 |
} |
1942 |
|
1943 |
=item $maps = cf::map::tmp_maps |
1944 |
|
1945 |
Returns an arrayref with all map paths of currently instantiated and saved |
1946 |
maps. May block. |
1947 |
|
1948 |
=cut |
1949 |
|
1950 |
sub tmp_maps() { |
1951 |
[ |
1952 |
map { |
1953 |
utf8::decode $_; |
1954 |
/\.map$/ |
1955 |
? normalise $_ |
1956 |
: () |
1957 |
} @{ aio_readdir $TMPDIR or [] } |
1958 |
] |
1959 |
} |
1960 |
|
1961 |
=item $maps = cf::map::random_maps |
1962 |
|
1963 |
Returns an arrayref with all map paths of currently instantiated and saved |
1964 |
random maps. May block. |
1965 |
|
1966 |
=cut |
1967 |
|
1968 |
sub random_maps() { |
1969 |
[ |
1970 |
map { |
1971 |
utf8::decode $_; |
1972 |
/\.map$/ |
1973 |
? normalise "?random/$_" |
1974 |
: () |
1975 |
} @{ aio_readdir $RANDOMDIR or [] } |
1976 |
] |
1977 |
} |
1978 |
|
1979 |
=item cf::map::unique_maps |
1980 |
|
1981 |
Returns an arrayref of paths of all shared maps that have |
1982 |
instantiated unique items. May block. |
1983 |
|
1984 |
=cut |
1985 |
|
1986 |
sub unique_maps() { |
1987 |
[ |
1988 |
map { |
1989 |
utf8::decode $_; |
1990 |
/\.map$/ |
1991 |
? normalise $_ |
1992 |
: () |
1993 |
} @{ aio_readdir $UNIQUEDIR or [] } |
1994 |
] |
1995 |
} |
1996 |
|
1997 |
package cf; |
1998 |
|
1999 |
=back |
2000 |
|
2001 |
=head3 cf::object |
2002 |
|
2003 |
=cut |
2004 |
|
2005 |
package cf::object; |
2006 |
|
2007 |
=over 4 |
2008 |
|
2009 |
=item $ob->inv_recursive |
2010 |
|
2011 |
Returns the inventory of the object _and_ their inventories, recursively. |
2012 |
|
2013 |
=cut |
2014 |
|
2015 |
sub inv_recursive_; |
2016 |
sub inv_recursive_ { |
2017 |
map { $_, inv_recursive_ $_->inv } @_ |
2018 |
} |
2019 |
|
2020 |
sub inv_recursive { |
2021 |
inv_recursive_ inv $_[0] |
2022 |
} |
2023 |
|
2024 |
package cf; |
2025 |
|
2026 |
=back |
2027 |
|
2028 |
=head3 cf::object::player |
2029 |
|
2030 |
=over 4 |
2031 |
|
2032 |
=item $player_object->reply ($npc, $msg[, $flags]) |
2033 |
|
2034 |
Sends a message to the player, as if the npc C<$npc> replied. C<$npc> |
2035 |
can be C<undef>. Does the right thing when the player is currently in a |
2036 |
dialogue with the given NPC character. |
2037 |
|
2038 |
=cut |
2039 |
|
2040 |
# rough implementation of a future "reply" method that works |
2041 |
# with dialog boxes. |
2042 |
#TODO: the first argument must go, split into a $npc->reply_to ( method |
2043 |
sub cf::object::player::reply($$$;$) { |
2044 |
my ($self, $npc, $msg, $flags) = @_; |
2045 |
|
2046 |
$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4; |
2047 |
|
2048 |
if ($self->{record_replies}) { |
2049 |
push @{ $self->{record_replies} }, [$npc, $msg, $flags]; |
2050 |
} else { |
2051 |
$msg = $npc->name . " says: $msg" if $npc; |
2052 |
$self->message ($msg, $flags); |
2053 |
} |
2054 |
} |
2055 |
|
2056 |
=item $player_object->may ("access") |
2057 |
|
2058 |
Returns wether the given player is authorized to access resource "access" |
2059 |
(e.g. "command_wizcast"). |
2060 |
|
2061 |
=cut |
2062 |
|
2063 |
sub cf::object::player::may { |
2064 |
my ($self, $access) = @_; |
2065 |
|
2066 |
$self->flag (cf::FLAG_WIZ) || |
2067 |
(ref $cf::CFG{"may_$access"} |
2068 |
? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}} |
2069 |
: $cf::CFG{"may_$access"}) |
2070 |
} |
2071 |
|
2072 |
=item $player_object->enter_link |
2073 |
|
2074 |
Freezes the player and moves him/her to a special map (C<{link}>). |
2075 |
|
2076 |
The player should be reasonably safe there for short amounts of time. You |
2077 |
I<MUST> call C<leave_link> as soon as possible, though. |
2078 |
|
2079 |
Will never block. |
2080 |
|
2081 |
=item $player_object->leave_link ($map, $x, $y) |
2082 |
|
2083 |
Moves the player out of the special C<{link}> map onto the specified |
2084 |
map. If the map is not valid (or omitted), the player will be moved back |
2085 |
to the location he/she was before the call to C<enter_link>, or, if that |
2086 |
fails, to the emergency map position. |
2087 |
|
2088 |
Might block. |
2089 |
|
2090 |
=cut |
2091 |
|
2092 |
sub link_map { |
2093 |
unless ($LINK_MAP) { |
2094 |
$LINK_MAP = cf::map::find "{link}" |
2095 |
or cf::cleanup "FATAL: unable to provide {link} map, exiting."; |
2096 |
$LINK_MAP->load; |
2097 |
} |
2098 |
|
2099 |
$LINK_MAP |
2100 |
} |
2101 |
|
2102 |
sub cf::object::player::enter_link { |
2103 |
my ($self) = @_; |
2104 |
|
2105 |
$self->deactivate_recursive; |
2106 |
|
2107 |
return if UNIVERSAL::isa $self->map, "ext::map_link"; |
2108 |
|
2109 |
$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y] |
2110 |
if $self->map && $self->map->{path} ne "{link}"; |
2111 |
|
2112 |
$self->enter_map ($LINK_MAP || link_map, 10, 10); |
2113 |
} |
2114 |
|
2115 |
sub cf::object::player::leave_link { |
2116 |
my ($self, $map, $x, $y) = @_; |
2117 |
|
2118 |
return unless $self->contr->active; |
2119 |
|
2120 |
my $link_pos = delete $self->{_link_pos}; |
2121 |
|
2122 |
unless ($map) { |
2123 |
# restore original map position |
2124 |
($map, $x, $y) = @{ $link_pos || [] }; |
2125 |
$map = cf::map::find $map; |
2126 |
|
2127 |
unless ($map) { |
2128 |
($map, $x, $y) = @$EMERGENCY_POSITION; |
2129 |
$map = cf::map::find $map |
2130 |
or die "FATAL: cannot load emergency map\n"; |
2131 |
} |
2132 |
} |
2133 |
|
2134 |
($x, $y) = (-1, -1) |
2135 |
unless (defined $x) && (defined $y); |
2136 |
|
2137 |
# use -1 or undef as default coordinates, not 0, 0 |
2138 |
($x, $y) = ($map->enter_x, $map->enter_y) |
2139 |
if $x <=0 && $y <= 0; |
2140 |
|
2141 |
$map->load; |
2142 |
$map->load_diag; |
2143 |
|
2144 |
return unless $self->contr->active; |
2145 |
$self->activate_recursive; |
2146 |
|
2147 |
local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext |
2148 |
$self->enter_map ($map, $x, $y); |
2149 |
} |
2150 |
|
2151 |
=item $player_object->goto ($path, $x, $y[, $check->($map)]) |
2152 |
|
2153 |
Moves the player to the given map-path and coordinates by first freezing |
2154 |
her, loading and preparing them map, calling the provided $check callback |
2155 |
that has to return the map if sucecssful, and then unfreezes the player on |
2156 |
the new (success) or old (failed) map position. |
2157 |
|
2158 |
=cut |
2159 |
|
2160 |
our $GOTOGEN; |
2161 |
|
2162 |
sub cf::object::player::goto { |
2163 |
my ($self, $path, $x, $y, $check) = @_; |
2164 |
|
2165 |
# do generation counting so two concurrent goto's will be executed in-order |
2166 |
my $gen = $self->{_goto_generation} = ++$GOTOGEN; |
2167 |
|
2168 |
$self->enter_link; |
2169 |
|
2170 |
(async { |
2171 |
my $map = eval { |
2172 |
my $map = cf::map::find $path; |
2173 |
|
2174 |
if ($map) { |
2175 |
$map = $map->customise_for ($self); |
2176 |
$map = $check->($map) if $check && $map; |
2177 |
} else { |
2178 |
$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED); |
2179 |
} |
2180 |
|
2181 |
$map |
2182 |
}; |
2183 |
|
2184 |
if ($@) { |
2185 |
$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED); |
2186 |
LOG llevError | logBacktrace, Carp::longmess $@; |
2187 |
} |
2188 |
|
2189 |
if ($gen == $self->{_goto_generation}) { |
2190 |
delete $self->{_goto_generation}; |
2191 |
$self->leave_link ($map, $x, $y); |
2192 |
} |
2193 |
})->prio (1); |
2194 |
} |
2195 |
|
2196 |
=item $player_object->enter_exit ($exit_object) |
2197 |
|
2198 |
=cut |
2199 |
|
2200 |
sub parse_random_map_params { |
2201 |
my ($spec) = @_; |
2202 |
|
2203 |
my $rmp = { # defaults |
2204 |
xsize => (cf::rndm 15, 40), |
2205 |
ysize => (cf::rndm 15, 40), |
2206 |
symmetry => (cf::rndm 1, cf::SYMMETRY_XY), |
2207 |
#layout => string, |
2208 |
}; |
2209 |
|
2210 |
for (split /\n/, $spec) { |
2211 |
my ($k, $v) = split /\s+/, $_, 2; |
2212 |
|
2213 |
$rmp->{lc $k} = $v if (length $k) && (length $v); |
2214 |
} |
2215 |
|
2216 |
$rmp |
2217 |
} |
2218 |
|
2219 |
sub prepare_random_map { |
2220 |
my ($exit) = @_; |
2221 |
|
2222 |
my $guard = cf::lock_acquire "exit_prepare:$exit"; |
2223 |
|
2224 |
# all this does is basically replace the /! path by |
2225 |
# a new random map path (?random/...) with a seed |
2226 |
# that depends on the exit object |
2227 |
|
2228 |
my $rmp = parse_random_map_params $exit->msg; |
2229 |
|
2230 |
if ($exit->map) { |
2231 |
$rmp->{region} = $exit->region->name; |
2232 |
$rmp->{origin_map} = $exit->map->path; |
2233 |
$rmp->{origin_x} = $exit->x; |
2234 |
$rmp->{origin_y} = $exit->y; |
2235 |
} |
2236 |
|
2237 |
$rmp->{random_seed} ||= $exit->random_seed; |
2238 |
|
2239 |
my $data = cf::to_json $rmp; |
2240 |
my $md5 = Digest::MD5::md5_hex $data; |
2241 |
my $meta = "$RANDOMDIR/$md5.meta"; |
2242 |
|
2243 |
if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) { |
2244 |
aio_write $fh, 0, (length $data), $data, 0; |
2245 |
undef $fh; |
2246 |
aio_rename "$meta~", $meta; |
2247 |
|
2248 |
$exit->slaying ("?random/$md5"); |
2249 |
$exit->msg (undef); |
2250 |
} |
2251 |
} |
2252 |
|
2253 |
sub cf::object::player::enter_exit { |
2254 |
my ($self, $exit) = @_; |
2255 |
|
2256 |
return unless $self->type == cf::PLAYER; |
2257 |
|
2258 |
if ($exit->slaying eq "/!") { |
2259 |
#TODO: this should de-fi-ni-te-ly not be a sync-job |
2260 |
# the problem is that $exit might not survive long enough |
2261 |
# so it needs to be done right now, right here |
2262 |
cf::sync_job { prepare_random_map $exit }; |
2263 |
} |
2264 |
|
2265 |
my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path; |
2266 |
my $hp = $exit->stats->hp; |
2267 |
my $sp = $exit->stats->sp; |
2268 |
|
2269 |
$self->enter_link; |
2270 |
|
2271 |
(async { |
2272 |
$self->deactivate_recursive; # just to be sure |
2273 |
unless (eval { |
2274 |
$self->goto ($slaying, $hp, $sp); |
2275 |
|
2276 |
1; |
2277 |
}) { |
2278 |
$self->message ("Something went wrong deep within the crossfire server. " |
2279 |
. "I'll try to bring you back to the map you were before. " |
2280 |
. "Please report this to the dungeon master!", |
2281 |
cf::NDI_UNIQUE | cf::NDI_RED); |
2282 |
|
2283 |
warn "ERROR in enter_exit: $@"; |
2284 |
$self->leave_link; |
2285 |
} |
2286 |
})->prio (1); |
2287 |
} |
2288 |
|
2289 |
=head3 cf::client |
2290 |
|
2291 |
=over 4 |
2292 |
|
2293 |
=item $client->send_drawinfo ($text, $flags) |
2294 |
|
2295 |
Sends a drawinfo packet to the client. Circumvents output buffering so |
2296 |
should not be used under normal circumstances. |
2297 |
|
2298 |
=cut |
2299 |
|
2300 |
sub cf::client::send_drawinfo { |
2301 |
my ($self, $text, $flags) = @_; |
2302 |
|
2303 |
utf8::encode $text; |
2304 |
$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text); |
2305 |
} |
2306 |
|
2307 |
=item $client->ext_event ($type, %msg) |
2308 |
|
2309 |
Sends an exti event to the client. |
2310 |
|
2311 |
=cut |
2312 |
|
2313 |
sub cf::client::ext_event($$%) { |
2314 |
my ($self, $type, %msg) = @_; |
2315 |
|
2316 |
$msg{msgtype} = "event_$type"; |
2317 |
$self->send_packet ("ext " . cf::to_json \%msg); |
2318 |
} |
2319 |
|
2320 |
=item $success = $client->query ($flags, "text", \&cb) |
2321 |
|
2322 |
Queues a query to the client, calling the given callback with |
2323 |
the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>, |
2324 |
C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>. |
2325 |
|
2326 |
Queries can fail, so check the return code. Or don't, as queries will become |
2327 |
reliable at some point in the future. |
2328 |
|
2329 |
=cut |
2330 |
|
2331 |
sub cf::client::query { |
2332 |
my ($self, $flags, $text, $cb) = @_; |
2333 |
|
2334 |
return unless $self->state == ST_PLAYING |
2335 |
|| $self->state == ST_SETUP |
2336 |
|| $self->state == ST_CUSTOM; |
2337 |
|
2338 |
$self->state (ST_CUSTOM); |
2339 |
|
2340 |
utf8::encode $text; |
2341 |
push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb]; |
2342 |
|
2343 |
$self->send_packet ($self->{query_queue}[0][0]) |
2344 |
if @{ $self->{query_queue} } == 1; |
2345 |
} |
2346 |
|
2347 |
cf::client->attach ( |
2348 |
on_reply => sub { |
2349 |
my ($ns, $msg) = @_; |
2350 |
|
2351 |
# this weird shuffling is so that direct followup queries |
2352 |
# get handled first |
2353 |
my $queue = delete $ns->{query_queue} |
2354 |
or return; # be conservative, not sure how that can happen, but we saw a crash here |
2355 |
|
2356 |
(shift @$queue)->[1]->($msg); |
2357 |
return unless $ns->valid; # temporary(?) workaround for callback destroying socket |
2358 |
|
2359 |
push @{ $ns->{query_queue} }, @$queue; |
2360 |
|
2361 |
if (@{ $ns->{query_queue} } == @$queue) { |
2362 |
if (@$queue) { |
2363 |
$ns->send_packet ($ns->{query_queue}[0][0]); |
2364 |
} else { |
2365 |
$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM; |
2366 |
} |
2367 |
} |
2368 |
}, |
2369 |
); |
2370 |
|
2371 |
=item $client->async (\&cb) |
2372 |
|
2373 |
Create a new coroutine, running the specified callback. The coroutine will |
2374 |
be automatically cancelled when the client gets destroyed (e.g. on logout, |
2375 |
or loss of connection). |
2376 |
|
2377 |
=cut |
2378 |
|
2379 |
sub cf::client::async { |
2380 |
my ($self, $cb) = @_; |
2381 |
|
2382 |
my $coro = &Coro::async ($cb); |
2383 |
|
2384 |
$coro->on_destroy (sub { |
2385 |
delete $self->{_coro}{$coro+0}; |
2386 |
}); |
2387 |
|
2388 |
$self->{_coro}{$coro+0} = $coro; |
2389 |
|
2390 |
$coro |
2391 |
} |
2392 |
|
2393 |
cf::client->attach ( |
2394 |
on_destroy => sub { |
2395 |
my ($ns) = @_; |
2396 |
|
2397 |
$_->cancel for values %{ (delete $ns->{_coro}) || {} }; |
2398 |
}, |
2399 |
); |
2400 |
|
2401 |
=back |
2402 |
|
2403 |
|
2404 |
=head2 SAFE SCRIPTING |
2405 |
|
2406 |
Functions that provide a safe environment to compile and execute |
2407 |
snippets of perl code without them endangering the safety of the server |
2408 |
itself. Looping constructs, I/O operators and other built-in functionality |
2409 |
is not available in the safe scripting environment, and the number of |
2410 |
functions and methods that can be called is greatly reduced. |
2411 |
|
2412 |
=cut |
2413 |
|
2414 |
our $safe = new Safe "safe"; |
2415 |
our $safe_hole = new Safe::Hole; |
2416 |
|
2417 |
$SIG{FPE} = 'IGNORE'; |
2418 |
|
2419 |
$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time)); |
2420 |
|
2421 |
# here we export the classes and methods available to script code |
2422 |
|
2423 |
=pod |
2424 |
|
2425 |
The following functions and methods are available within a safe environment: |
2426 |
|
2427 |
cf::object contr pay_amount pay_player map |
2428 |
cf::object::player player |
2429 |
cf::player peaceful |
2430 |
cf::map trigger |
2431 |
|
2432 |
=cut |
2433 |
|
2434 |
for ( |
2435 |
["cf::object" => qw(contr pay_amount pay_player map)], |
2436 |
["cf::object::player" => qw(player)], |
2437 |
["cf::player" => qw(peaceful)], |
2438 |
["cf::map" => qw(trigger)], |
2439 |
) { |
2440 |
no strict 'refs'; |
2441 |
my ($pkg, @funs) = @$_; |
2442 |
*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) |
2443 |
for @funs; |
2444 |
} |
2445 |
|
2446 |
=over 4 |
2447 |
|
2448 |
=item @retval = safe_eval $code, [var => value, ...] |
2449 |
|
2450 |
Compiled and executes the given perl code snippet. additional var/value |
2451 |
pairs result in temporary local (my) scalar variables of the given name |
2452 |
that are available in the code snippet. Example: |
2453 |
|
2454 |
my $five = safe_eval '$first + $second', first => 1, second => 4; |
2455 |
|
2456 |
=cut |
2457 |
|
2458 |
sub safe_eval($;@) { |
2459 |
my ($code, %vars) = @_; |
2460 |
|
2461 |
my $qcode = $code; |
2462 |
$qcode =~ s/"/‟/g; # not allowed in #line filenames |
2463 |
$qcode =~ s/\n/\\n/g; |
2464 |
|
2465 |
local $_; |
2466 |
local @safe::cf::_safe_eval_args = values %vars; |
2467 |
|
2468 |
my $eval = |
2469 |
"do {\n" |
2470 |
. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n" |
2471 |
. "#line 0 \"{$qcode}\"\n" |
2472 |
. $code |
2473 |
. "\n}" |
2474 |
; |
2475 |
|
2476 |
sub_generation_inc; |
2477 |
my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval); |
2478 |
sub_generation_inc; |
2479 |
|
2480 |
if ($@) { |
2481 |
warn "$@"; |
2482 |
warn "while executing safe code '$code'\n"; |
2483 |
warn "with arguments " . (join " ", %vars) . "\n"; |
2484 |
} |
2485 |
|
2486 |
wantarray ? @res : $res[0] |
2487 |
} |
2488 |
|
2489 |
=item cf::register_script_function $function => $cb |
2490 |
|
2491 |
Register a function that can be called from within map/npc scripts. The |
2492 |
function should be reasonably secure and should be put into a package name |
2493 |
like the extension. |
2494 |
|
2495 |
Example: register a function that gets called whenever a map script calls |
2496 |
C<rent::overview>, as used by the C<rent> extension. |
2497 |
|
2498 |
cf::register_script_function "rent::overview" => sub { |
2499 |
... |
2500 |
}; |
2501 |
|
2502 |
=cut |
2503 |
|
2504 |
sub register_script_function { |
2505 |
my ($fun, $cb) = @_; |
2506 |
|
2507 |
no strict 'refs'; |
2508 |
*{"safe::$fun"} = $safe_hole->wrap ($cb); |
2509 |
} |
2510 |
|
2511 |
=back |
2512 |
|
2513 |
=cut |
2514 |
|
2515 |
############################################################################# |
2516 |
# the server's init and main functions |
2517 |
|
2518 |
sub load_facedata($) { |
2519 |
my ($path) = @_; |
2520 |
|
2521 |
warn "loading facedata from $path\n"; |
2522 |
|
2523 |
my $facedata; |
2524 |
0 < aio_load $path, $facedata |
2525 |
or die "$path: $!"; |
2526 |
|
2527 |
$facedata = Coro::Storable::thaw $facedata; |
2528 |
|
2529 |
$facedata->{version} == 2 |
2530 |
or cf::cleanup "$path: version mismatch, cannot proceed."; |
2531 |
|
2532 |
{ |
2533 |
my $faces = $facedata->{faceinfo}; |
2534 |
|
2535 |
while (my ($face, $info) = each %$faces) { |
2536 |
my $idx = (cf::face::find $face) || cf::face::alloc $face; |
2537 |
cf::face::set $idx, $info->{visibility}, $info->{magicmap}; |
2538 |
cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32}; |
2539 |
cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64}; |
2540 |
Coro::cede; |
2541 |
} |
2542 |
|
2543 |
while (my ($face, $info) = each %$faces) { |
2544 |
next unless $info->{smooth}; |
2545 |
my $idx = cf::face::find $face |
2546 |
or next; |
2547 |
if (my $smooth = cf::face::find $info->{smooth}) { |
2548 |
cf::face::set_smooth $idx, $smooth, $info->{smoothlevel}; |
2549 |
} else { |
2550 |
warn "smooth face '$info->{smooth}' not found for face '$face'"; |
2551 |
} |
2552 |
Coro::cede; |
2553 |
} |
2554 |
} |
2555 |
|
2556 |
{ |
2557 |
my $anims = $facedata->{animinfo}; |
2558 |
|
2559 |
while (my ($anim, $info) = each %$anims) { |
2560 |
cf::anim::set $anim, $info->{frames}, $info->{facings}; |
2561 |
Coro::cede; |
2562 |
} |
2563 |
|
2564 |
cf::anim::invalidate_all; # d'oh |
2565 |
} |
2566 |
|
2567 |
1 |
2568 |
} |
2569 |
|
2570 |
sub reload_regions { |
2571 |
load_resource_file "$MAPDIR/regions" |
2572 |
or die "unable to load regions file\n"; |
2573 |
} |
2574 |
|
2575 |
sub reload_facedata { |
2576 |
load_facedata "$DATADIR/facedata" |
2577 |
or die "unable to load facedata\n"; |
2578 |
} |
2579 |
|
2580 |
sub reload_archetypes { |
2581 |
load_resource_file "$DATADIR/archetypes" |
2582 |
or die "unable to load archetypes\n"; |
2583 |
} |
2584 |
|
2585 |
sub reload_treasures { |
2586 |
load_resource_file "$DATADIR/treasures" |
2587 |
or die "unable to load treasurelists\n"; |
2588 |
} |
2589 |
|
2590 |
sub reload_resources { |
2591 |
warn "reloading resource files...\n"; |
2592 |
|
2593 |
reload_regions; |
2594 |
reload_facedata; |
2595 |
#reload_archetypes;#d# |
2596 |
reload_archetypes; |
2597 |
reload_treasures; |
2598 |
|
2599 |
warn "finished reloading resource files\n"; |
2600 |
} |
2601 |
|
2602 |
sub init { |
2603 |
reload_resources; |
2604 |
} |
2605 |
|
2606 |
sub cfg_load { |
2607 |
open my $fh, "<:utf8", "$CONFDIR/config" |
2608 |
or return; |
2609 |
|
2610 |
local $/; |
2611 |
*CFG = YAML::Syck::Load <$fh>; |
2612 |
|
2613 |
$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37]; |
2614 |
|
2615 |
$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset}; |
2616 |
$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset}; |
2617 |
|
2618 |
if (exists $CFG{mlockall}) { |
2619 |
eval { |
2620 |
$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()" |
2621 |
and die "WARNING: m(un)lockall failed: $!\n"; |
2622 |
}; |
2623 |
warn $@ if $@; |
2624 |
} |
2625 |
} |
2626 |
|
2627 |
sub main { |
2628 |
# we must not ever block the main coroutine |
2629 |
local $Coro::idle = sub { |
2630 |
Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# |
2631 |
(async { |
2632 |
Event::one_event; |
2633 |
})->prio (Coro::PRIO_MAX); |
2634 |
}; |
2635 |
|
2636 |
cfg_load; |
2637 |
db_init; |
2638 |
load_extensions; |
2639 |
|
2640 |
$TICK_WATCHER->start; |
2641 |
Event::loop; |
2642 |
} |
2643 |
|
2644 |
############################################################################# |
2645 |
# initialisation and cleanup |
2646 |
|
2647 |
# install some emergency cleanup handlers |
2648 |
BEGIN { |
2649 |
for my $signal (qw(INT HUP TERM)) { |
2650 |
Event->signal ( |
2651 |
reentrant => 0, |
2652 |
data => WF_AUTOCANCEL, |
2653 |
signal => $signal, |
2654 |
prio => 0, |
2655 |
cb => sub { |
2656 |
cf::cleanup "SIG$signal"; |
2657 |
}, |
2658 |
); |
2659 |
} |
2660 |
} |
2661 |
|
2662 |
sub write_runtime { |
2663 |
my $runtime = "$LOCALDIR/runtime"; |
2664 |
|
2665 |
# first touch the runtime file to show we are still running: |
2666 |
# the fsync below can take a very very long time. |
2667 |
|
2668 |
IO::AIO::aio_utime $runtime, undef, undef; |
2669 |
|
2670 |
my $guard = cf::lock_acquire "write_runtime"; |
2671 |
|
2672 |
my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 |
2673 |
or return; |
2674 |
|
2675 |
my $value = $cf::RUNTIME + 90 + 10; |
2676 |
# 10 is the runtime save interval, for a monotonic clock |
2677 |
# 60 allows for the watchdog to kill the server. |
2678 |
|
2679 |
(aio_write $fh, 0, (length $value), $value, 0) <= 0 |
2680 |
and return; |
2681 |
|
2682 |
# always fsync - this file is important |
2683 |
aio_fsync $fh |
2684 |
and return; |
2685 |
|
2686 |
# touch it again to show we are up-to-date |
2687 |
aio_utime $fh, undef, undef; |
2688 |
|
2689 |
close $fh |
2690 |
or return; |
2691 |
|
2692 |
aio_rename "$runtime~", $runtime |
2693 |
and return; |
2694 |
|
2695 |
warn "runtime file written.\n"; |
2696 |
|
2697 |
1 |
2698 |
} |
2699 |
|
2700 |
sub emergency_save() { |
2701 |
my $freeze_guard = cf::freeze_mainloop; |
2702 |
|
2703 |
warn "enter emergency perl save\n"; |
2704 |
|
2705 |
cf::sync_job { |
2706 |
# use a peculiar iteration method to avoid tripping on perl |
2707 |
# refcount bugs in for. also avoids problems with players |
2708 |
# and maps saved/destroyed asynchronously. |
2709 |
warn "begin emergency player save\n"; |
2710 |
for my $login (keys %cf::PLAYER) { |
2711 |
my $pl = $cf::PLAYER{$login} or next; |
2712 |
$pl->valid or next; |
2713 |
$pl->save; |
2714 |
} |
2715 |
warn "end emergency player save\n"; |
2716 |
|
2717 |
warn "begin emergency map save\n"; |
2718 |
for my $path (keys %cf::MAP) { |
2719 |
my $map = $cf::MAP{$path} or next; |
2720 |
$map->valid or next; |
2721 |
$map->save; |
2722 |
} |
2723 |
warn "end emergency map save\n"; |
2724 |
|
2725 |
warn "begin emergency database checkpoint\n"; |
2726 |
BDB::db_env_txn_checkpoint $DB_ENV; |
2727 |
warn "end emergency database checkpoint\n"; |
2728 |
}; |
2729 |
|
2730 |
warn "leave emergency perl save\n"; |
2731 |
} |
2732 |
|
2733 |
sub post_cleanup { |
2734 |
my ($make_core) = @_; |
2735 |
|
2736 |
warn Carp::longmess "post_cleanup backtrace" |
2737 |
if $make_core; |
2738 |
} |
2739 |
|
2740 |
sub do_reload_perl() { |
2741 |
# can/must only be called in main |
2742 |
if ($Coro::current != $Coro::main) { |
2743 |
warn "can only reload from main coroutine"; |
2744 |
return; |
2745 |
} |
2746 |
|
2747 |
warn "reloading..."; |
2748 |
|
2749 |
warn "entering sync_job"; |
2750 |
|
2751 |
cf::sync_job { |
2752 |
cf::write_runtime; # external watchdog should not bark |
2753 |
cf::emergency_save; |
2754 |
cf::write_runtime; # external watchdog should not bark |
2755 |
|
2756 |
warn "syncing database to disk"; |
2757 |
BDB::db_env_txn_checkpoint $DB_ENV; |
2758 |
|
2759 |
# if anything goes wrong in here, we should simply crash as we already saved |
2760 |
|
2761 |
warn "cancelling all WF_AUTOCANCEL watchers"; |
2762 |
for (Event::all_watchers) { |
2763 |
$_->cancel if $_->data & WF_AUTOCANCEL; |
2764 |
} |
2765 |
|
2766 |
warn "flushing outstanding aio requests"; |
2767 |
for (;;) { |
2768 |
BDB::flush; |
2769 |
IO::AIO::flush; |
2770 |
Coro::cede; |
2771 |
last unless IO::AIO::nreqs || BDB::nreqs; |
2772 |
warn "iterate..."; |
2773 |
} |
2774 |
|
2775 |
++$RELOAD; |
2776 |
|
2777 |
warn "cancelling all extension coros"; |
2778 |
$_->cancel for values %EXT_CORO; |
2779 |
%EXT_CORO = (); |
2780 |
|
2781 |
warn "removing commands"; |
2782 |
%COMMAND = (); |
2783 |
|
2784 |
warn "removing ext commands"; |
2785 |
%EXTCMD = (); |
2786 |
|
2787 |
warn "unloading/nuking all extensions"; |
2788 |
for my $pkg (@EXTS) { |
2789 |
warn "... unloading $pkg"; |
2790 |
|
2791 |
if (my $cb = $pkg->can ("unload")) { |
2792 |
eval { |
2793 |
$cb->($pkg); |
2794 |
1 |
2795 |
} or warn "$pkg unloaded, but with errors: $@"; |
2796 |
} |
2797 |
|
2798 |
warn "... nuking $pkg"; |
2799 |
Symbol::delete_package $pkg; |
2800 |
} |
2801 |
|
2802 |
warn "unloading all perl modules loaded from $LIBDIR"; |
2803 |
while (my ($k, $v) = each %INC) { |
2804 |
next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/; |
2805 |
|
2806 |
warn "... unloading $k"; |
2807 |
delete $INC{$k}; |
2808 |
|
2809 |
$k =~ s/\.pm$//; |
2810 |
$k =~ s/\//::/g; |
2811 |
|
2812 |
if (my $cb = $k->can ("unload_module")) { |
2813 |
$cb->(); |
2814 |
} |
2815 |
|
2816 |
Symbol::delete_package $k; |
2817 |
} |
2818 |
|
2819 |
warn "getting rid of safe::, as good as possible"; |
2820 |
Symbol::delete_package "safe::$_" |
2821 |
for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); |
2822 |
|
2823 |
warn "unloading cf.pm \"a bit\""; |
2824 |
delete $INC{"cf.pm"}; |
2825 |
delete $INC{"cf/pod.pm"}; |
2826 |
|
2827 |
# don't, removes xs symbols, too, |
2828 |
# and global variables created in xs |
2829 |
#Symbol::delete_package __PACKAGE__; |
2830 |
|
2831 |
warn "unload completed, starting to reload now"; |
2832 |
|
2833 |
warn "reloading cf.pm"; |
2834 |
require cf; |
2835 |
cf::_connect_to_perl; # nominally unnecessary, but cannot hurt |
2836 |
|
2837 |
warn "loading config and database again"; |
2838 |
cf::cfg_load; |
2839 |
|
2840 |
warn "loading extensions"; |
2841 |
cf::load_extensions; |
2842 |
|
2843 |
warn "reattaching attachments to objects/players"; |
2844 |
_global_reattach; # objects, sockets |
2845 |
warn "reattaching attachments to maps"; |
2846 |
reattach $_ for values %MAP; |
2847 |
warn "reattaching attachments to players"; |
2848 |
reattach $_ for values %PLAYER; |
2849 |
|
2850 |
warn "leaving sync_job"; |
2851 |
|
2852 |
1 |
2853 |
} or do { |
2854 |
warn $@; |
2855 |
warn "error while reloading, exiting."; |
2856 |
exit 1; |
2857 |
}; |
2858 |
|
2859 |
warn "reloaded"; |
2860 |
}; |
2861 |
|
2862 |
our $RELOAD_WATCHER; # used only during reload |
2863 |
|
2864 |
sub reload_perl() { |
2865 |
# doing reload synchronously and two reloads happen back-to-back, |
2866 |
# coro crashes during coro_state_free->destroy here. |
2867 |
|
2868 |
$RELOAD_WATCHER ||= Event->timer ( |
2869 |
reentrant => 0, |
2870 |
after => 0, |
2871 |
data => WF_AUTOCANCEL, |
2872 |
cb => sub { |
2873 |
do_reload_perl; |
2874 |
undef $RELOAD_WATCHER; |
2875 |
}, |
2876 |
); |
2877 |
} |
2878 |
|
2879 |
register_command "reload" => sub { |
2880 |
my ($who, $arg) = @_; |
2881 |
|
2882 |
if ($who->flag (FLAG_WIZ)) { |
2883 |
$who->message ("reloading server."); |
2884 |
async { reload_perl }; |
2885 |
} |
2886 |
}; |
2887 |
|
2888 |
unshift @INC, $LIBDIR; |
2889 |
|
2890 |
my $bug_warning = 0; |
2891 |
|
2892 |
our @WAIT_FOR_TICK; |
2893 |
our @WAIT_FOR_TICK_BEGIN; |
2894 |
|
2895 |
sub wait_for_tick { |
2896 |
return unless $TICK_WATCHER->is_active; |
2897 |
return if $Coro::current == $Coro::main; |
2898 |
|
2899 |
my $signal = new Coro::Signal; |
2900 |
push @WAIT_FOR_TICK, $signal; |
2901 |
$signal->wait; |
2902 |
} |
2903 |
|
2904 |
sub wait_for_tick_begin { |
2905 |
return unless $TICK_WATCHER->is_active; |
2906 |
return if $Coro::current == $Coro::main; |
2907 |
|
2908 |
my $signal = new Coro::Signal; |
2909 |
push @WAIT_FOR_TICK_BEGIN, $signal; |
2910 |
$signal->wait; |
2911 |
} |
2912 |
|
2913 |
my $min = 1e6;#d# |
2914 |
my $avg = 10; |
2915 |
$TICK_WATCHER = Event->timer ( |
2916 |
reentrant => 0, |
2917 |
parked => 1, |
2918 |
prio => 0, |
2919 |
at => $NEXT_TICK || $TICK, |
2920 |
data => WF_AUTOCANCEL, |
2921 |
cb => sub { |
2922 |
if ($Coro::current != $Coro::main) { |
2923 |
Carp::cluck "major BUG: server tick called outside of main coro, skipping it" |
2924 |
unless ++$bug_warning > 10; |
2925 |
return; |
2926 |
} |
2927 |
|
2928 |
$NOW = $tick_start = Event::time; |
2929 |
|
2930 |
cf::server_tick; # one server iteration |
2931 |
|
2932 |
0 && sync_job {#d# |
2933 |
for(1..10) { |
2934 |
my $t = Event::time; |
2935 |
my $map = my $map = new_from_path cf::map "/tmp/x.map" |
2936 |
or die; |
2937 |
|
2938 |
$map->width (50); |
2939 |
$map->height (50); |
2940 |
$map->alloc; |
2941 |
$map->_load_objects ("/tmp/x.map", 1); |
2942 |
my $t = Event::time - $t; |
2943 |
|
2944 |
#next unless $t < 0.0013;#d# |
2945 |
if ($t < $min) { |
2946 |
$min = $t; |
2947 |
} |
2948 |
$avg = $avg * 0.99 + $t * 0.01; |
2949 |
} |
2950 |
warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d# |
2951 |
exit 0; |
2952 |
# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477 |
2953 |
}; |
2954 |
|
2955 |
$RUNTIME += $TICK; |
2956 |
$NEXT_TICK += $TICK; |
2957 |
|
2958 |
if ($NOW >= $NEXT_RUNTIME_WRITE) { |
2959 |
$NEXT_RUNTIME_WRITE = $NOW + 10; |
2960 |
Coro::async_pool { |
2961 |
write_runtime |
2962 |
or warn "ERROR: unable to write runtime file: $!"; |
2963 |
}; |
2964 |
} |
2965 |
|
2966 |
# my $AFTER = Event::time; |
2967 |
# warn $AFTER - $NOW;#d# |
2968 |
|
2969 |
if (my $sig = shift @WAIT_FOR_TICK_BEGIN) { |
2970 |
$sig->send; |
2971 |
} |
2972 |
while (my $sig = shift @WAIT_FOR_TICK) { |
2973 |
$sig->send; |
2974 |
} |
2975 |
|
2976 |
$NOW = Event::time; |
2977 |
|
2978 |
# if we are delayed by four ticks or more, skip them all |
2979 |
$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4; |
2980 |
|
2981 |
$TICK_WATCHER->at ($NEXT_TICK); |
2982 |
$TICK_WATCHER->start; |
2983 |
|
2984 |
$LOAD = ($NOW - $tick_start) / $TICK; |
2985 |
$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25; |
2986 |
|
2987 |
_post_tick; |
2988 |
|
2989 |
|
2990 |
}, |
2991 |
); |
2992 |
|
2993 |
{ |
2994 |
BDB::max_poll_time $TICK * 0.1; |
2995 |
$BDB_POLL_WATCHER = Event->io ( |
2996 |
reentrant => 0, |
2997 |
fd => BDB::poll_fileno, |
2998 |
poll => 'r', |
2999 |
prio => 0, |
3000 |
data => WF_AUTOCANCEL, |
3001 |
cb => \&BDB::poll_cb, |
3002 |
); |
3003 |
BDB::min_parallel 8; |
3004 |
|
3005 |
BDB::set_sync_prepare { |
3006 |
my $status; |
3007 |
my $current = $Coro::current; |
3008 |
( |
3009 |
sub { |
3010 |
$status = $!; |
3011 |
$current->ready; undef $current; |
3012 |
}, |
3013 |
sub { |
3014 |
Coro::schedule while defined $current; |
3015 |
$! = $status; |
3016 |
}, |
3017 |
) |
3018 |
}; |
3019 |
|
3020 |
unless ($DB_ENV) { |
3021 |
$DB_ENV = BDB::db_env_create; |
3022 |
|
3023 |
cf::sync_job { |
3024 |
eval { |
3025 |
BDB::db_env_open |
3026 |
$DB_ENV, |
3027 |
$BDBDIR, |
3028 |
BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN |
3029 |
| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE, |
3030 |
0666; |
3031 |
|
3032 |
cf::cleanup "db_env_open($BDBDIR): $!" if $!; |
3033 |
|
3034 |
$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1); |
3035 |
$DB_ENV->set_lk_detect; |
3036 |
}; |
3037 |
|
3038 |
cf::cleanup "db_env_open(db): $@" if $@; |
3039 |
}; |
3040 |
} |
3041 |
} |
3042 |
|
3043 |
{ |
3044 |
IO::AIO::min_parallel 8; |
3045 |
|
3046 |
undef $Coro::AIO::WATCHER; |
3047 |
IO::AIO::max_poll_time $TICK * 0.1; |
3048 |
$AIO_POLL_WATCHER = Event->io ( |
3049 |
reentrant => 0, |
3050 |
data => WF_AUTOCANCEL, |
3051 |
fd => IO::AIO::poll_fileno, |
3052 |
poll => 'r', |
3053 |
prio => 6, |
3054 |
cb => \&IO::AIO::poll_cb, |
3055 |
); |
3056 |
} |
3057 |
|
3058 |
my $_log_backtrace; |
3059 |
|
3060 |
sub _log_backtrace { |
3061 |
my ($msg, @addr) = @_; |
3062 |
|
3063 |
$msg =~ s/\n//; |
3064 |
|
3065 |
# limit the # of concurrent backtraces |
3066 |
if ($_log_backtrace < 2) { |
3067 |
++$_log_backtrace; |
3068 |
async { |
3069 |
my @bt = fork_call { |
3070 |
@addr = map { sprintf "%x", $_ } @addr; |
3071 |
my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X; |
3072 |
open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |" |
3073 |
or die "addr2line: $!"; |
3074 |
|
3075 |
my @funcs; |
3076 |
my @res = <$fh>; |
3077 |
chomp for @res; |
3078 |
while (@res) { |
3079 |
my ($func, $line) = splice @res, 0, 2, (); |
3080 |
push @funcs, "[$func] $line"; |
3081 |
} |
3082 |
|
3083 |
@funcs |
3084 |
}; |
3085 |
|
3086 |
LOG llevInfo, "[ABT] $msg\n"; |
3087 |
LOG llevInfo, "[ABT] $_\n" for @bt; |
3088 |
--$_log_backtrace; |
3089 |
}; |
3090 |
} else { |
3091 |
LOG llevInfo, "[ABT] $msg\n"; |
3092 |
LOG llevInfo, "[ABT] [suppressed]\n"; |
3093 |
} |
3094 |
} |
3095 |
|
3096 |
# load additional modules |
3097 |
use cf::pod; |
3098 |
|
3099 |
END { cf::emergency_save } |
3100 |
|
3101 |
1 |
3102 |
|