CachePeers.h

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/*
 * Copyright (C) 1996-2025 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */
 
#ifndef SQUID_SRC_CACHEPEERS_H
#define SQUID_SRC_CACHEPEERS_H
 
#include "base/forward.h"
#include "CachePeer.h"
#include "mem/PoolingAllocator.h"
 
#include <memory>
#include <vector>
 
class CachePeers
{
public:
    using Storage = std::vector< std::unique_ptr<CachePeer>, PoolingAllocator< std::unique_ptr<CachePeer> > >;
 
    void add(CachePeer *p) { storage.emplace_back(p); }
 
    void remove(CachePeer *);
 
    auto size() const { return storage.size(); }
 
    /* peer iterators forming a sequence for C++ range-based for loop API */
    using const_iterator = Storage::const_iterator;
    auto begin() const { return storage.cbegin(); }
    auto end() const { return storage.cend(); }
 
    CachePeer &nextPeerToPing(size_t iteration);
 
private:
    Storage storage;
 
    uint64_t peerPolls_ = 0;
};
 
const CachePeers &CurrentCachePeers();
 
void DeleteConfigured(CachePeer *);
 
using SelectedCachePeers = std::vector< CbcPointer<CachePeer>, PoolingAllocator< CbcPointer<CachePeer> > >;
 
using RawCachePeers = std::vector<CachePeer *, PoolingAllocator<CachePeer*> >;
 
#endif /* SQUID_SRC_CACHEPEERS_H */