version 1.22, 2006/12/19 17:44:16
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version 1.30, 2007/06/12 23:48:45
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Line 237 sub make_new_child {
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Line 237 sub make_new_child {
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return; |
return; |
} else { |
} else { |
# Child can *not* return from this subroutine. |
# Child can *not* return from this subroutine. |
$SIG{INT} = 'DEFAULT'; # make SIGINT kill us as it did before |
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# unblock signals |
# unblock signals |
sigprocmask(SIG_UNBLOCK, $sigset) |
sigprocmask(SIG_UNBLOCK, $sigset) |
Line 246 sub make_new_child {
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Line 246 sub make_new_child {
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&logthis('New process started'); |
&logthis('New process started'); |
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my $command=Expect->spawn('maxima'); |
my $command=Expect->spawn('maxima'); |
$command->log_stdout(0); |
# soft/hard_close can take awhile and we really |
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# don't care we just want it gone |
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$SIG{INT} = sub { |
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my $pid = $command->pid(); |
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kill('KILL'=>$pid); |
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exit; |
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}; |
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$command->log_stdout(0); |
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#$command->log_file("$execdir/logs/lonmaxima.session.log"); |
&getmaximaoutput($command); |
&getmaximaoutput($command); |
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for (my $i=0; $i < $MAX_CLIENTS_PER_CHILD; $i++) { |
for (my $i=0; $i < $MAX_CLIENTS_PER_CHILD; $i++) { |
&status('Accepting connections'); |
&status('Accepting connections'); |
my $client = $server->accept() or last; |
my $client = $server->accept() or last; |
print $command "kill(all);\n"; |
print $command ("display2d:false;kill(all);\n"); |
&getmaximaoutput($command); |
&getmaximaoutput($command,2); |
&sync($command); |
&sync($command); |
while (my $cmd=<$client>) { |
my $syntaxerr = 0; |
&status('Processing command'); |
while (my $cmd=<$client>) { |
print $command &unescape($cmd); |
&status('Processing command'); |
my $reply=&getmaximaoutput($command); |
print $command &unescape($cmd); |
print $client &escape($reply)."\n"; |
my ($reply,$syntaxerr) = &getmaximaoutput($command,1); |
if ($reply=~/^Error\:/) { |
print $client &escape($reply)."\n"; |
&logthis('Died through '.$reply); |
if ($syntaxerr) { |
$client->close(); |
last; |
$command->hard_close(); |
} elsif ($reply=~/^Error\:/) { |
exit; |
&logthis('Died through '.$reply); |
} |
$client->close(); |
&sync($command); |
$command->hard_close(); |
&status('Waiting for commands'); |
exit; |
} |
} |
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&sync($command); |
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&status('Waiting for commands'); |
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} |
} |
} |
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# tidy up gracefully and finish |
# tidy up gracefully and finish |
Line 291 sub make_new_child {
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Line 302 sub make_new_child {
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my $expect=$counter.time; |
my $expect=$counter.time; |
print $command "$expect;\n"; |
print $command "$expect;\n"; |
while (1) { |
while (1) { |
my $output=&getmaximaoutput($command); |
my $output=&getmaximaoutput($command,1); |
if (($output=~/\Q$expect\E/) || ($output=~/^Error\:/)) { |
if (($output=~/\Q$expect\E/) || ($output=~/^Error\:/)) { |
return; |
return; |
} |
} |
Line 300 sub make_new_child {
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Line 311 sub make_new_child {
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} |
} |
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sub getmaximaoutput { |
sub getmaximaoutput { |
my ($command)=@_; |
my ($command,$numcheck)=@_; |
my (undef,$error,undef,$output)=$command->expect(20, -re => '\(\%i\d+\)'); |
my $regexp = '\(\%i\d+\)'; |
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my $syntaxerr=0; |
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if ($numcheck) { |
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if ($numcheck eq 2) { |
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# command was the killall so should get a full reset on |
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# command numbers |
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$regexp = '(\(\%i(1)\)|Incorrect syntax\:)'; |
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} elsif ($command->match() =~ /\(\%i(\d+)\)/) { |
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my $nextmatch = $1+1; |
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$regexp = '(\(\%i'.$nextmatch.'\)|Incorrect syntax\:)'; |
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} |
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} |
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my $timeout = 20; |
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my (undef,$error,$matched,$output) = |
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$command->expect($timeout, -re => $regexp); |
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if ($numcheck && $matched eq 'Incorrect syntax:') { |
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$syntaxerr = 1; |
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if (wantarray) { |
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return ($matched,$syntaxerr); |
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} else { |
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return $matched; |
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} |
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} |
if ($error) { |
if ($error) { |
return 'Error: '.$error; |
return 'Error: '.$error; |
} |
} |
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$output =~ s/\r+//g; # Remove Windows-style linebreaks |
my $foundoutput=0; |
my $foundoutput=0; |
my $realoutput=''; |
my $realoutput=''; |
foreach my $line (split(/\n/,$output)) { |
foreach my $line (split(/\n/,$output)) { |
if ($line=~/\;/) { $foundoutput=1; next; } |
if ($line=~/\;/) { $foundoutput=1; next; } |
if (!$foundoutput) { next; } |
if (!$foundoutput) { next; } |
my ($label)=($line=~s/^(\(\%o\d+\))//); |
if ($line=~/^Incorrect syntax:/) { $syntaxerr = 1; next; } |
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(my $label, $line) = ($line=~ /^(\(\%o\d+\))(.+)$/); |
if ($label) { |
if ($label) { |
$label=~s/\S/ /g; |
$label=~s/\S/ /g; |
$line=$label.$line; |
$line=$label.$line; |
} |
} |
$realoutput.=$line."\n"; |
$realoutput.=$line."\n"; |
} |
} |
return $realoutput; |
if (wantarray) { |
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return ($realoutput,$syntaxerr); |
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} else { |
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return $realoutput; |
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} |
} |
} |