Class CompareNodeNetworkTime

src/net.cpp:938–948

* Sort eviction candidates by network/localhost and connection uptime. * Candidates near the beginning are more likely to be evicted, and those * near the end are more likely to be protected, e.g. less likely to be evicted. * - First, nodes that are not `is_local` and that do not belong to `network`, * sorted by increasing uptime (from most recently connected to connected longer). * - Then,

 * - Then, nodes that are `is_local` or belong to `network`, sorted by increasing uptime.
 */
struct CompareNodeNetworkTime {
    const bool m_is_local;
    const Network m_network;
    CompareNodeNetworkTime(bool is_local, Network network) : m_is_local(is_local), m_network(network) {}
    bool operator()(const NodeEvictionCandidate& a, const NodeEvictionCandidate& b) const
    {
        if (m_is_local && a.m_is_local != b.m_is_local) return b.m_is_local;
        if ((a.m_network == m_network) != (b.m_network == m_network)) return b.m_network == m_network;
        return a.m_connected > b.m_connected;
    };
};

//! Sort an array by the specified comparator, then erase the last K elements where predicate is true.
template <typename T, typename Comparator>