26 lines
1.0 KiB
C#
26 lines
1.0 KiB
C#
using System.Collections.Concurrent;
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using System.Collections.Generic;
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namespace PluralKit.Bot
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{
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// Doing things like this instead of enabling D.NET's message cache because the message cache is, let's face it,
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// not particularly efficient? It allocates a dictionary *and* a queue for every single channel (500k in prod!)
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// whereas this is, worst case, one dictionary *entry* of a single ulong per channel, and one dictionary instance
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// on the whole instance, total. Yeah, much more efficient.
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// TODO: is this still needed after the D#+ migration?
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public class LastMessageCacheService
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{
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private readonly IDictionary<ulong, ulong> _cache = new ConcurrentDictionary<ulong, ulong>();
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public void AddMessage(ulong channel, ulong message)
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{
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_cache[channel] = message;
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}
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public ulong? GetLastMessage(ulong channel)
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{
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if (_cache.TryGetValue(channel, out var message)) return message;
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return null;
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}
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}
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} |