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