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Updated cache implementations

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This commit is contained in:
ClemensFischer 2025-02-20 20:29:49 +01:00
parent e7c2213f71
commit ed87d87f75
4 changed files with 90 additions and 99 deletions
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41
Caches/SQLiteCache/SQLiteCache.cs
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@ -19,14 +19,14 @@ namespace MapControl.Caching
public sealed class SQLiteCache : IDistributedCache, IDisposable
{
private readonly SQLiteConnection connection;
private readonly Timer cleanTimer;
private readonly Timer expirationScanTimer;
public SQLiteCache(string path)
: this(path, TimeSpan.FromHours(1))
{
}
public SQLiteCache(string path, TimeSpan autoCleanInterval)
public SQLiteCache(string path, TimeSpan expirationScanFrequency)
{
if (string.IsNullOrEmpty(path))
{
@ -48,15 +48,15 @@ namespace MapControl.Caching
Debug.WriteLine($"{nameof(SQLiteCache)}: Opened database {path}");
if (autoCleanInterval > TimeSpan.Zero)
if (expirationScanFrequency > TimeSpan.Zero)
{
cleanTimer = new Timer(_ => Clean(), null, TimeSpan.Zero, autoCleanInterval);
expirationScanTimer = new Timer(_ => DeleteExpiredItems(), null, TimeSpan.Zero, expirationScanFrequency);
}
}
public void Dispose()
{
cleanTimer?.Dispose();
expirationScanTimer?.Dispose();
connection.Dispose();
}
@ -189,11 +189,11 @@ namespace MapControl.Caching
}
}
public void Clean()
public void DeleteExpiredItems()
{
using (var command = new SQLiteCommand("delete from items where expiration < @exp", connection))
{
command.Parameters.AddWithValue("@exp", DateTimeOffset.UtcNow.Ticks);
command.Parameters.AddWithValue("@exp", DateTimeOffset.Now.Ticks);
command.ExecuteNonQuery();
}
#if DEBUG
@ -208,11 +208,11 @@ namespace MapControl.Caching
#endif
}
public async Task CleanAsync()
public async Task DeleteExpiredItemsAsync()
{
using (var command = new SQLiteCommand("delete from items where expiration < @exp", connection))
{
command.Parameters.AddWithValue("@exp", DateTimeOffset.UtcNow.Ticks);
command.Parameters.AddWithValue("@exp", DateTimeOffset.Now.Ticks);
await command.ExecuteNonQueryAsync();
}
#if DEBUG
@ -243,24 +243,9 @@ namespace MapControl.Caching
private SQLiteCommand SetItemCommand(string key, byte[] buffer, DistributedCacheEntryOptions options)
{
DateTimeOffset expiration;
if (options.AbsoluteExpiration.HasValue)
{
expiration = options.AbsoluteExpiration.Value;
}
else if (options.AbsoluteExpirationRelativeToNow.HasValue)
{
expiration = DateTimeOffset.UtcNow.Add(options.AbsoluteExpirationRelativeToNow.Value);
}
else if (options.SlidingExpiration.HasValue)
{
expiration = DateTimeOffset.UtcNow.Add(options.SlidingExpiration.Value);
}
else
{
expiration = DateTimeOffset.UtcNow.Add(TimeSpan.FromDays(1));
}
var expiration = options.AbsoluteExpiration.HasValue
? options.AbsoluteExpiration.Value
: DateTimeOffset.Now.Add(options.AbsoluteExpirationRelativeToNow ?? (options.SlidingExpiration ?? TimeSpan.FromDays(1)));
var command = new SQLiteCommand("insert or replace into items (key, expiration, buffer) values (@key, @exp, @buf)", connection);
command.Parameters.AddWithValue("@key", key);
@ -273,7 +258,7 @@ namespace MapControl.Caching
{
var expiration = new DateTimeOffset((long)reader["expiration"], TimeSpan.Zero);
if (expiration <= DateTimeOffset.UtcNow)
if (expiration <= DateTimeOffset.Now)
{
return false;
}