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// Copyright (c) 2015 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_multipath_transmissions_map.h"
namespace net {
QuicMultipathTransmissionsMap::QuicMultipathTransmissionsMap() {}
QuicMultipathTransmissionsMap::~QuicMultipathTransmissionsMap() {
for (std::pair<QuicPathIdPacketNumber, MultipathTransmissionsList*>
packet_transmissions : transmission_map_) {
packet_transmissions.second->pop_front();
if (packet_transmissions.second->empty()) {
delete packet_transmissions.second;
}
}
}
void QuicMultipathTransmissionsMap::OnPacketRetransmittedOnDifferentPath(
QuicPathIdPacketNumber original_path_id_packet_number,
QuicPathIdPacketNumber path_id_packet_number) {
MultipathTransmissionsList* across_paths_transmission_list = nullptr;
MultipathTransmissionsMap::iterator it =
transmission_map_.find(original_path_id_packet_number);
if (it != transmission_map_.end()) {
across_paths_transmission_list = it->second;
} else {
across_paths_transmission_list = new MultipathTransmissionsList();
across_paths_transmission_list->push_back(original_path_id_packet_number);
transmission_map_[original_path_id_packet_number] =
across_paths_transmission_list;
}
across_paths_transmission_list->push_back(path_id_packet_number);
transmission_map_[path_id_packet_number] = across_paths_transmission_list;
}
const QuicMultipathTransmissionsMap::MultipathTransmissionsList*
QuicMultipathTransmissionsMap::MaybeGetTransmissionsOnOtherPaths(
QuicPathIdPacketNumber path_id_packet_number) const {
MultipathTransmissionsMap::const_iterator it =
transmission_map_.find(path_id_packet_number);
if (it == transmission_map_.end()) {
return nullptr;
}
return it->second;
}
void QuicMultipathTransmissionsMap::OnPacketHandled(
QuicPathIdPacketNumber path_id_packet_number) {
MultipathTransmissionsMap::iterator it =
transmission_map_.find(path_id_packet_number);
if (it == transmission_map_.end()) {
return;
}
MultipathTransmissionsList* transmission_list = it->second;
MultipathTransmissionsList::iterator transmission_it;
// Remove all across paths transmissions of this packet from the map.
for (QuicPathIdPacketNumber path_id_packet_number : *transmission_list) {
transmission_map_.erase(path_id_packet_number);
}
// Remove the multipath transmissions list.
delete transmission_list;
}
} // namespace net
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