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-rw-r--r--LibMatrix/Homeservers/Extensions/NamedCaches/NamedCache.cs65
-rw-r--r--LibMatrix/Homeservers/Extensions/NamedCaches/NamedFilterCache.cs10
2 files changed, 60 insertions, 15 deletions
diff --git a/LibMatrix/Homeservers/Extensions/NamedCaches/NamedCache.cs b/LibMatrix/Homeservers/Extensions/NamedCaches/NamedCache.cs

index 622eef6..1f62637 100644 --- a/LibMatrix/Homeservers/Extensions/NamedCaches/NamedCache.cs +++ b/LibMatrix/Homeservers/Extensions/NamedCaches/NamedCache.cs
@@ -3,35 +3,72 @@ namespace LibMatrix.Homeservers.Extensions.NamedCaches; public class NamedCache<T>(AuthenticatedHomeserverGeneric hs, string name) where T : class { private Dictionary<string, T>? _cache = new(); private DateTime _expiry = DateTime.MinValue; - + private SemaphoreSlim _lock = new(1, 1); + + public TimeSpan ExpiryTime { get; set; } = TimeSpan.FromMinutes(5); + public DateTime GetCurrentExpiryTime() => _expiry; + + /// <summary> + /// Update the cached map with the latest data from the homeserver. + /// </summary> + /// <returns>The updated data</returns> public async Task<Dictionary<string, T>> ReadCacheMapAsync() { - _cache = await hs.GetAccountDataOrNullAsync<Dictionary<string, T>>(name); + try { + _cache = await hs.GetAccountDataAsync<Dictionary<string, T>>(name); + } + catch (MatrixException e) { + if (e is { ErrorCode: MatrixException.ErrorCodes.M_NOT_FOUND }) + _cache = []; + else throw; + } return _cache ?? new(); } - - public async Task<Dictionary<string,T>> ReadCacheMapCachedAsync() { + + public async Task<Dictionary<string, T>> ReadCacheMapCachedAsync() { + await _lock.WaitAsync(); if (_expiry < DateTime.Now || _cache == null) { _cache = await ReadCacheMapAsync(); - _expiry = DateTime.Now.AddMinutes(5); + _expiry = DateTime.Now.Add(ExpiryTime); } + _lock.Release(); + return _cache; } - - public virtual async Task<T?> GetValueAsync(string key) { - return (await ReadCacheMapCachedAsync()).GetValueOrDefault(key); + + public virtual async Task<T?> GetValueAsync(string key, bool useCache = true) { + return (await (useCache ? ReadCacheMapCachedAsync() : ReadCacheMapAsync())).GetValueOrDefault(key); } - - public virtual async Task<T> SetValueAsync(string key, T value) { - var cache = await ReadCacheMapCachedAsync(); + + public virtual async Task<T> SetValueAsync(string key, T value, bool unsafeUseCache = false) { + if (!unsafeUseCache) + await _lock.WaitAsync(); + var cache = await (unsafeUseCache ? ReadCacheMapCachedAsync() : ReadCacheMapAsync()); cache[key] = value; await hs.SetAccountDataAsync(name, cache); + if (!unsafeUseCache) + _lock.Release(); + return value; } - - public virtual async Task<T> GetOrSetValueAsync(string key, Func<Task<T>> value) { - return (await ReadCacheMapCachedAsync()).GetValueOrDefault(key) ?? await SetValueAsync(key, await value()); + + public virtual async Task<T> RemoveValueAsync(string key, bool unsafeUseCache = false) { + if (!unsafeUseCache) + await _lock.WaitAsync(); + var cache = await (unsafeUseCache ? ReadCacheMapCachedAsync() : ReadCacheMapAsync()); + var removedValue = cache[key]; + cache.Remove(key); + await hs.SetAccountDataAsync(name, cache); + + if (!unsafeUseCache) + _lock.Release(); + + return removedValue; + } + + public virtual async Task<T> GetOrSetValueAsync(string key, Func<Task<T>> value, bool unsafeUseCache = false) { + return (await (unsafeUseCache ? ReadCacheMapCachedAsync() : ReadCacheMapAsync())).GetValueOrDefault(key) ?? await SetValueAsync(key, await value()); } } \ No newline at end of file diff --git a/LibMatrix/Homeservers/Extensions/NamedCaches/NamedFilterCache.cs b/LibMatrix/Homeservers/Extensions/NamedCaches/NamedFilterCache.cs
index 76533a4..e3c5943 100644 --- a/LibMatrix/Homeservers/Extensions/NamedCaches/NamedFilterCache.cs +++ b/LibMatrix/Homeservers/Extensions/NamedCaches/NamedFilterCache.cs
@@ -1,3 +1,5 @@ +using System.Text.Json.Nodes; +using ArcaneLibs.Extensions; using LibMatrix.Filters; using LibMatrix.Utilities; @@ -16,7 +18,13 @@ public class NamedFilterCache(AuthenticatedHomeserverGeneric hs) : NamedCache<st public async Task<string> GetOrSetValueAsync(string key, SyncFilter? filter = null) { var existingValue = await GetValueAsync(key); if (existingValue != null) { - return existingValue; + try { + var existingFilter = await hs.GetFilterAsync(existingValue); + return existingValue; + } + catch { + // ignored + } } if (filter is null) {