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package Protocol::HTTP2::Frame::Ping;
use strict;
use warnings;
use Protocol::HTTP2::Constants qw(:flags :errors :limits);
use Protocol::HTTP2::Trace qw(tracer);
sub decode {
my ( $con, $buf_ref, $buf_offset, $length ) = @_;
my $frame_ref = $con->decode_context->{frame};
# PING associated with connection
if ( $frame_ref->{stream} != 0 ) {
$con->error(PROTOCOL_ERROR);
return undef;
}
# payload is 8 octets
if ( $length != PING_PAYLOAD_SIZE ) {
$con->error(FRAME_SIZE_ERROR);
return undef;
}
$con->ack_ping( \substr $$buf_ref, $buf_offset, $length )
unless $frame_ref->{flags} & ACK;
return $length;
}
sub encode {
my ( $con, $flags_ref, $stream, $data_ref ) = @_;
if ( length($$data_ref) != PING_PAYLOAD_SIZE ) {
$con->error(INTERNAL_ERROR);
return undef;
}
return $$data_ref;
}
1;
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