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srs/trunk/src/kernel/srs_kernel_balance.hpp
2019-12-30 10:10:35 +08:00

55 lines
1.7 KiB
C++

/**
* The MIT License (MIT)
*
* Copyright (c) 2013-2020 Winlin
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef SRS_KERNEL_BALANCE_HPP
#define SRS_KERNEL_BALANCE_HPP
#include <srs_core.hpp>
#include <vector>
#include <string>
/**
* the round-robin load balance algorithm,
* used for edge pull and other multiple server feature.
*/
class SrsLbRoundRobin
{
private:
// current selected index.
int index;
// total scheduled count.
uint32_t count;
// current selected server.
std::string elem;
public:
SrsLbRoundRobin();
virtual ~SrsLbRoundRobin();
public:
virtual uint32_t current();
virtual std::string selected();
virtual std::string select(const std::vector<std::string>& servers);
};
#endif