|
1
@H_403_12@
2
3
4
5
6
7
|
eval
{
local
$SIG
{ALRM} =
sub
{
die
"alarm time out"
};
alarm
$TIMEOUT
;
$sock
->
recv
(
$msg
,
$MAXLEN
) or
die
"recv: $!"
;
alarm
0;
1;
# return value from eval on normalcy
} or
"recv from $server_host timed out after $TIMEOUT seconds.\n"
;
|
#定义ALRM发生信号时的操作，这里发信给客户端并断开链接，子进程退出
$SIG{ALRM} = sub {
print "recv timeout\n";
##syswrite($session,"timeout");
my $bytes=send($session,"timeout",0);
&log($bytes);
close($session);
exit();
};
alarm( 30 ); #同上，一般放在会超时的操作代码my $bs=recv($session,$buf,2048,0); &log($bs);alarm( 0 );