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Perl

Receive an Exact Number of Bytes into a BinData

See more Socket/SSL/TLS Examples

Demonstrates Socket.ReceiveBdN, which receives exactly the requested number of bytes and appends them to a BinData, continuing until the full count is satisfied.

Background. Inactivity is controlled by MaxReadIdleMs: the call fails if incoming bytes halt for longer than MaxReadIdleMs milliseconds before the full amount is received. A single receive returns only what is currently available, whereas this counted receive waits for an exact number of bytes.

Chilkat Perl Downloads

Perl
use chilkat();

$success = 0;

$socket = chilkat::CkSocket->new();

#  Connect to the server using TLS.
$bTls = 1;
$maxWaitMs = 5000;
$success = $socket->Connect("example.com",5000,$bTls,$maxWaitMs);
if ($success == 0) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

#  MaxReadIdleMs controls the inactivity limit for receiving.  The ReceiveBdN call will fail if
#  incoming bytes halt for longer than this many milliseconds before the full amount is received.
$socket->put_MaxReadIdleMs(15000);

#  Receive exactly the requested number of bytes, appending them to a BinData.  The method continues
#  receiving until the full count is satisfied or a failure occurs.
$bd = chilkat::CkBinData->new();
$success = $socket->ReceiveBdN(256,$bd);
if ($success == 0) {
    print $socket->lastErrorText() . "\r\n";
    exit;
}

print "Received " . $bd->get_NumBytes() . " bytes." . "\r\n";