limit spot dup checking to first 12 characters

[spider.git] / perl / Msg.pm

diff --git a/perl/Msg.pm b/perl/Msg.pm
index 63383cdafe5a5d9c2de57dfa2752098827ccebe3..ec2f3b4ca0214836327bb99c8a84aaa60a609b6a 100644 (file)
--- a/perl/Msg.pm
+++ b/perl/Msg.pm
@@ -37,6 +37,7 @@ $now = time;
 BEGIN {
     # Checks if blocking is supported
     eval {
+               local $^W;
         require POSIX; POSIX->import(qw(O_NONBLOCK F_SETFL F_GETFL))
     };
        if ($@ || $main::is_win) {
@@ -50,16 +51,21 @@ BEGIN {
 
        # import as many of these errno values as are available
        eval {
+               local $^W;
                require Errno; Errno->import(qw(EAGAIN EINPROGRESS EWOULDBLOCK));
        };
 
-       eval {
-               require Socket; Socket->import(qw(IPPROTO_TCP TCP_NODELAY));
-       };
-       if ($@ && !$^O =~ /^MS/) {
-               dbg("IPPROTO_TCP and TCP_NODELAY manually defined");
-               eval '*IPPROTO_TCP     = sub {     6 };';
-               eval '*TCP_NODELAY     = sub {     1 };';
+       unless ($^O eq 'MSWin32') {
+               if ($] >= 5.6) {
+                       eval {
+                               local $^W;
+                               require Socket; Socket->import(qw(IPPROTO_TCP TCP_NODELAY));
+                       };
+               } else {
+                       dbg("IPPROTO_TCP and TCP_NODELAY manually defined");
+                       eval 'sub IPPROTO_TCP {     6 };';
+                       eval 'sub TCP_NODELAY {     1 };';
+               }
        }
        # http://support.microsoft.com/support/kb/articles/Q150/5/37.asp
        # defines EINPROGRESS as 10035.  We provide it here because some
@@ -69,7 +75,9 @@ BEGIN {
                eval '*EWOULDBLOCK = *EAGAIN = sub { 10035 };';
                eval '*F_GETFL     = sub {     0 };';
                eval '*F_SETFL     = sub {     0 };';
-               $blocking_supported = 1;
+               eval '*IPPROTO_TCP     = sub {     6 };';
+               eval '*TCP_NODELAY     = sub {     1 };';
+               $blocking_supported = 0;   # it appears that this DOESN'T work :-(
        } 
 }
 
@@ -389,26 +397,26 @@ sub nolinger
 {
        my $conn = shift;
 
-       if (isdbg('sock')) {
-               my ($l, $t) = unpack "ll", getsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER); 
-               my $k = unpack 'l', getsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE);
-               my $n = unpack "l", getsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY);
-               dbg("Linger is: $l $t, keepalive: $k, nagle: $n");
-       }
-
-       setsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER, pack("ll", 0, 0)) or confess "setsockopt linger: $!";
-       setsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE, 1) or confess "setsockopt keepalive: $!";
        unless ($main::is_win) {
-               setsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY, 1) or confess "setsockopt: $!";
+               if (isdbg('sock')) {
+                       my ($l, $t) = unpack "ll", getsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER); 
+                       my $k = unpack 'l', getsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE);
+                       my $n = $main::is_win ? 0 : unpack "l", getsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY);
+                       dbg("Linger is: $l $t, keepalive: $k, nagle: $n");
+               }
+               
+               eval {setsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE, 1)} or dbg("setsockopt keepalive: $!");
+               eval {setsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER, pack("ll", 0, 0))} or dbg("setsockopt linger: $!");
+               eval {setsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY, 1)} or eval {setsockopt($conn->{sock}, SOL_SOCKET, TCP_NODELAY, 1)} or dbg("setsockopt tcp_nodelay: $!");
+               $conn->{sock}->autoflush(0);
+
+               if (isdbg('sock')) {
+                       my ($l, $t) = unpack "ll", getsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER); 
+                       my $k = unpack 'l', getsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE);
+                       my $n = $main::is_win ? 0 : unpack "l", getsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY);
+                       dbg("Linger is: $l $t, keepalive: $k, nagle: $n");
+               }
        } 
-       $conn->{sock}->autoflush(0);
-       
-       if (isdbg('sock')) {
-               my ($l, $t) = unpack "ll", getsockopt($conn->{sock}, SOL_SOCKET, SO_LINGER); 
-               my $k = unpack 'l', getsockopt($conn->{sock}, SOL_SOCKET, SO_KEEPALIVE);
-               my $n = unpack "l", getsockopt($conn->{sock}, IPPROTO_TCP, TCP_NODELAY);
-               dbg("Linger is: $l $t, keepalive: $k, nagle: $n");
-       }
 }
 
 sub dequeue