]>
iEval git - gruntmaster-daemon.git/blob - gruntmaster-exec
10 # Internal server error
22 use BSD
:: Resource qw
/setrlimit RLIMIT_AS RLIMIT_FSIZE RLIMIT_NPROC/ ;
23 use IPC
:: Signal qw
/sig_name sig_num/ ;
28 use Text
:: ParseWords qw
/shellwords/ ;
29 use Time
:: HiRes qw
/alarm/ ;
31 my ( @fds , $timeout , $mlimit , $olimit , $sudo , $keep_stderr );
35 "timeout=f" => \
$timeout ,
36 "mlimit=i" => \
$mlimit ,
37 "olimit=i" => \
$olimit ,
38 "keep-stderr!" => \
$keep_stderr ,
44 sysread STDIN
, $data , 4096 and syswrite STDOUT
, "recvd \n " until $data =~ /done/ ;
45 syswrite STDOUT
, 'done' ;
50 vec ( $rin , fileno STDIN
, 1 ) = 1 ;
51 syswrite STDOUT
, "data \n " until select $rout = $rin , undef , undef , 0.05 ;
52 syswrite STDOUT
, 'done' ;
54 sysread STDIN
, $data , 4096 until $data =~ /done/ ;
58 $ARGV [ 0 ] =~ /prog/ ? test_pipe_read
: test_pipe_write
62 @sudo = ( shellwords
( $ENV { GRUNTMASTER_SUDO
}), '--' ) if $ENV { GRUNTMASTER_SUDO
} && $sudo ;
63 undef $mlimit if @sudo ; # sudo wants a lot of address space
65 my $ret = fork // die 'Cannot fork' ;
67 my ( $tle , $child_ready );
68 local $SIG { USR1
} = sub { $child_ready = 1 };
69 sleep 3 ; # Wait for ready signal (SIGUSR1)
70 unless ( $child_ready ) {
72 exit ! say ERR
, " \n No response from gruntmaster-exec child" ;
74 local $SIG { ALRM
} = sub {
78 alarm ( $timeout || 10 );
83 $ ?
= $ ?
< 128 || $ ?
> 128 + 32 ?
($ ?
<< 8 ) : $ ?
- 128 ;
86 my $signame = sig_name
$sig ;
87 exit ! say TLE
, " \n Time Limit Exceeded" if $tle ;
88 exit ! say OLE
, " \n Output Limit Exceeded" if $sig && $signame eq 'XFSZ' ;
89 exit ! say DIED
, " \n Crash (SIG $signame )" if $sig && ( $signame ne 'PIPE' || $ARGV [ 0 ] !~ /prog/ );
90 exit ! say NZX
, " \n Non-zero exit status: " . ($ ?
>> 8 ) if $ ?
>> 8 ;
91 exit ! say AC
, " \n All OK" ;
94 POSIX
:: close 2 unless $keep_stderr ;
95 POSIX
:: close $_ for 0 , 1 , 3 .. $^ F
;
96 for my $fdstring ( @fds ) {
97 my ( $fd , $file ) = split ' ' , $fdstring , 2 ;
98 open my $fh , $file or die $!;
99 my $oldfd = fileno $fh ;
101 POSIX
:: dup2
$oldfd , $fd or die $!;
102 POSIX
:: close $oldfd or die $!;
105 test_pipes
if grep /tty|fifo/ , @fds ;
107 my $debug = $ENV { TEST_VERBOSE
};
108 %ENV = ( ONLINE_JUDGE
=> 1 , PATH
=> $ENV { PATH
}, HOME
=> $ENV { HOME
});
109 setrlimit RLIMIT_AS
, $mlimit , $mlimit or die $! if $mlimit ;
110 setrlimit RLIMIT_FSIZE
, $olimit , $olimit or die $! if $olimit ;
111 setrlimit RLIMIT_NPROC
, $nproc , $nproc or die $! if $sudo ;
112 open my $adj , '>' , '/proc/self/oom_score_adj' ;
115 unshift @ARGV , @sudo ;
116 kill USR1
=> getppid ; # Tell parent process that we're ready
117 say STDERR
"Executing: " , join ' ' , map { "' $_ '" } @ARGV if $debug ;
128 gruntmaster-exec - Gruntmaster 6000 executor
132 gruntmaster-exec 20000000 111 echo 'Hello, world!'
136 gruntmaster-exec is the script used by gruntmasterd to run programs.
138 The first argument is the address space limit (in bytes), the second argument is the output limit (also in bytes). The rest of the arguments are the command that should be run and its arguments.
140 gruntmaster-exec sets the resource limits, cleans the environment (except for PATH and HOME), adds the ONLINE_JUDGE environment variable with value 1, and finally C<exec>s the given command.
144 Marius Gavrilescu E<lt>marius@ieval.roE<gt>
146 =head1 COPYRIGHT AND LICENSE
148 Copyright (C) 2014 by Marius Gavrilescu
150 This program is free software: you can redistribute it and/or modify
151 it under the terms of the GNU Affero General Public License as published by
152 the Free Software Foundation, either version 3 of the License, or
153 (at your option) any later version.
This page took 0.068291 seconds and 5 git commands to generate.