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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/quic/quic_ack_notifier.h"
#include <set>
#include "base/logging.h"
#include "base/stl_util.h"
namespace net {
QuicAckNotifier::DelegateInterface::DelegateInterface() {}
QuicAckNotifier::DelegateInterface::~DelegateInterface() {}
QuicAckNotifier::QuicAckNotifier(DelegateInterface* delegate)
: delegate_(delegate) {
DCHECK(delegate_);
}
QuicAckNotifier::~QuicAckNotifier() {}
void QuicAckNotifier::AddSequenceNumber(
const QuicPacketSequenceNumber& sequence_number) {
sequence_numbers_.insert(sequence_number);
}
void QuicAckNotifier::AddSequenceNumbers(
const SequenceNumberSet& sequence_numbers) {
for (SequenceNumberSet::const_iterator it = sequence_numbers.begin();
it != sequence_numbers.end(); ++it) {
AddSequenceNumber(*it);
}
}
bool QuicAckNotifier::OnAck(QuicPacketSequenceNumber sequence_number) {
DCHECK(ContainsKey(sequence_numbers_, sequence_number));
sequence_numbers_.erase(sequence_number);
if (IsEmpty()) {
// We have seen all the sequence numbers we were waiting for, trigger
// callback notification.
delegate_->OnAckNotification();
return true;
}
return false;
}
void QuicAckNotifier::UpdateSequenceNumber(
QuicPacketSequenceNumber old_sequence_number,
QuicPacketSequenceNumber new_sequence_number) {
sequence_numbers_.erase(old_sequence_number);
sequence_numbers_.insert(new_sequence_number);
}
}; // namespace net
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