65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#pragma once
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#include <folly/net/NetworkSocket.h>
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#include <folly/portability/Sockets.h>
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#include <map>
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namespace folly {
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/**
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* Uniquely identifies a handle to a socket option value. Each
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* combination of level and option name corresponds to one socket
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* option value.
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*/
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class SocketOptionKey {
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public:
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enum class ApplyPos { POST_BIND = 0, PRE_BIND = 1 };
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bool operator<(const SocketOptionKey& other) const {
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if (level == other.level) {
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return optname < other.optname;
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}
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return level < other.level;
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}
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int apply(NetworkSocket fd, int val) const;
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int level;
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int optname;
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ApplyPos applyPos_{ApplyPos::POST_BIND};
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};
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// Maps from a socket option key to its value
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using SocketOptionMap = std::map<SocketOptionKey, int>;
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extern const SocketOptionMap emptySocketOptionMap;
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int applySocketOptions(
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NetworkSocket fd,
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const SocketOptionMap& options,
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SocketOptionKey::ApplyPos pos);
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SocketOptionMap validateSocketOptions(
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const SocketOptionMap& options,
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sa_family_t family,
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SocketOptionKey::ApplyPos pos);
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} // namespace folly
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