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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/base/address_map_cache_linux.h"
#include <linux/rtnetlink.h>
#include "base/synchronization/lock.h"
namespace net {
AddressMapCacheLinux::AddressMapCacheLinux() = default;
AddressMapCacheLinux::~AddressMapCacheLinux() = default;
AddressMapOwnerLinux::AddressMap AddressMapCacheLinux::GetAddressMap() const {
base::AutoLock autolock(lock_);
return cached_address_map_;
}
std::unordered_set<int> AddressMapCacheLinux::GetOnlineLinks() const {
base::AutoLock autolock(lock_);
return cached_online_links_;
}
AddressMapCacheLinux* AddressMapCacheLinux::GetAddressMapCacheLinux() {
return this;
}
void AddressMapCacheLinux::SetCachedInfo(AddressMap address_map,
std::unordered_set<int> online_links) {
base::AutoLock autolock(lock_);
cached_address_map_ = std::move(address_map);
cached_online_links_ = std::move(online_links);
}
void AddressMapCacheLinux::ApplyDiffs(const AddressMapDiff& addr_diff,
const OnlineLinksDiff& links_diff) {
base::AutoLock autolock(lock_);
for (const auto& [address, msg_opt] : addr_diff) {
if (msg_opt.has_value()) {
cached_address_map_[address] = msg_opt.value();
} else {
cached_address_map_.erase(address);
}
}
for (const auto& [if_index, is_now_online] : links_diff) {
if (is_now_online) {
cached_online_links_.insert(if_index);
} else {
cached_online_links_.erase(if_index);
}
}
}
} // namespace net
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