version 1.14, 2006/03/08 14:22:14
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version 1.15, 2006/03/08 15:58:03
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Line 37 use IO::Socket;
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Line 37 use IO::Socket;
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use IO::File; |
use IO::File; |
use Symbol; |
use Symbol; |
use POSIX; |
use POSIX; |
use Fcntl; |
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use Socket; |
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use lib '/home/httpd/lib/perl/'; |
use lib '/home/httpd/lib/perl/'; |
use LONCAPA::Configuration; |
use LONCAPA::Configuration; |
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Line 131 sub catchexception {
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Line 129 sub catchexception {
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die("Signal abend"); |
die("Signal abend"); |
} |
} |
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# -------------------------------------------------- make a socket non-blocking |
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sub nonblock { |
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my $socket = shift; |
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my $flags; |
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if (ref($socket)) { |
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$flags = fcntl($socket, F_GETFL, 0) |
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or die "Can't get flags for socket: $!\n"; |
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fcntl($socket, F_SETFL, $flags | O_NONBLOCK) |
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or die "Can't make socket nonblocking: $!\n"; |
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} |
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} |
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# ---------------------------------------------------------------- Main program |
# ---------------------------------------------------------------- Main program |
# -------------------------------- Set signal handlers to record abnormal exits |
# -------------------------------- Set signal handlers to record abnormal exits |
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Line 277 sub make_new_child {
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Line 263 sub make_new_child {
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Reuse => 1, |
Reuse => 1, |
Listen => 10 ) |
Listen => 10 ) |
or die "making socket: $@\n"; |
or die "making socket: $@\n"; |
&nonblock($maximaserver); |
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my $maximaselect=IO::Select->new($maximaserver); |
my $maximaselect=IO::Select->new($maximaserver); |
sleep(2); |
sleep(1); |
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# open MAXIMA to talk to that port |
# open MAXIMA to talk to that port |
my ($cmd_in, $cmd_out, $cmd_err); |
my ($cmd_in, $cmd_out, $cmd_err); |
Line 291 sub make_new_child {
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Line 276 sub make_new_child {
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# hopefully, MAXIMA calls us back |
# hopefully, MAXIMA calls us back |
&status("Waiting $maximapid on $maximaport"); |
&status("Waiting $maximapid on $maximaport"); |
my $maximaclient=$maximaserver->accept(); |
my $maximaclient=$maximaserver->accept(); |
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$maximaclient->blocking(0); |
$maximaselect->add($maximaclient); |
$maximaselect->add($maximaclient); |
&nonblock($maximaclient); |
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&status("$maximapid on $maximaport connected."); |
&status("$maximapid on $maximaport connected."); |
&logthis("Maxima $maximapid on port $maximaport connected."); |
&logthis("Maxima $maximapid on port $maximaport connected."); |
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sleep(2); |
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&logthis('Initial reply: '.&maximareply($maximaselect)); |
&logthis('Initial reply: '.&maximareply($maximaselect)); |
# handle connections until we've reached $MAX_CLIENTS_PER_CHILD |
# handle connections until we've reached $MAX_CLIENTS_PER_CHILD |
for (my $i=0; $i < $MAX_CLIENTS_PER_CHILD; $i++) { |
for (my $i=0; $i < $MAX_CLIENTS_PER_CHILD; $i++) { |
Line 302 sub make_new_child {
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Line 289 sub make_new_child {
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my $client = $server->accept() or last; |
my $client = $server->accept() or last; |
while (my $cmd=<$client>) { |
while (my $cmd=<$client>) { |
&status('Processing command by '.$maximapid.' on '.$maximaport); |
&status('Processing command by '.$maximapid.' on '.$maximaport); |
print $maximaclient &unescape($cmd).";\n"; |
&maximawrite($maximaselect,&unescape($cmd).";\n"); |
print $client &escape(&maximareply($maximaselect))."\n"; |
print $client &escape(&maximareply($maximaselect))."\n"; |
} |
} |
} |
} |
Line 323 sub make_new_child {
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Line 310 sub make_new_child {
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sub maximareply { |
sub maximareply { |
my ($maximaselect)=@_; |
my ($maximaselect)=@_; |
my $output=''; |
my $output=''; |
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foreach my $ready ($maximaselect->can_read(1)) { |
foreach my $ready ($maximaselect->can_read(1)) { |
my $data = ''; |
my $data = ''; |
my $rv = $ready->recv($data, POSIX::BUFSIZ, 0); |
my $rv = $ready->recv($data, POSIX::BUFSIZ, 0); |
Line 331 sub maximareply {
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Line 319 sub maximareply {
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return $output; |
return $output; |
} |
} |
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sub maximawrite { |
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my ($maximaselect,$cmd)=@_; |
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my $ready=($maximaselect->can_write(1)); |
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if (ref($ready)) { |
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print $ready $cmd; |
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} else { |
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&logthis("Cannot write: ".&maximareply($maximaselect)); |
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} |
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} |
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