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Change number of read connections based on # of threads and add comments
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parent
8dba3a44fd
commit
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@ -1,16 +1,22 @@
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#pragma warning disable CS1591
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using System;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Concurrent;
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using SQLitePCL.pretty;
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using SQLitePCL.pretty;
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namespace Emby.Server.Implementations.Data;
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namespace Emby.Server.Implementations.Data;
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/// <summary>
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/// A pool of SQLite Database connections.
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/// </summary>
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public sealed class ConnectionPool : IDisposable
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public sealed class ConnectionPool : IDisposable
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{
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{
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private readonly BlockingCollection<SQLiteDatabaseConnection> _connections = new();
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private readonly BlockingCollection<SQLiteDatabaseConnection> _connections = new();
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private bool _disposed;
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private bool _disposed;
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/// <summary>
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/// Initializes a new instance of the <see cref="ConnectionPool" /> class.
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/// </summary>
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/// <param name="count">The number of database connection to create.</param>
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/// <param name="factory">Factory function to create the database connections.</param>
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public ConnectionPool(int count, Func<SQLiteDatabaseConnection> factory)
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public ConnectionPool(int count, Func<SQLiteDatabaseConnection> factory)
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{
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{
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for (int i = 0; i < count; i++)
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for (int i = 0; i < count; i++)
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@ -19,6 +25,10 @@ public sealed class ConnectionPool : IDisposable
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}
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}
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}
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}
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/// <summary>
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/// Gets a database connection from the pool if one is available, otherwise blocks.
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/// </summary>
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/// <returns>A database connection.</returns>
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public ManagedConnection GetConnection()
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public ManagedConnection GetConnection()
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{
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{
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if (_disposed)
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if (_disposed)
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@ -34,6 +44,10 @@ public sealed class ConnectionPool : IDisposable
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}
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}
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}
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}
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/// <summary>
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/// Return a database connection to the pool.
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/// </summary>
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/// <param name="connection">The database connection to return.</param>
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public void Return(SQLiteDatabaseConnection connection)
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public void Return(SQLiteDatabaseConnection connection)
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{
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{
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if (_disposed)
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if (_disposed)
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@ -45,6 +59,7 @@ public sealed class ConnectionPool : IDisposable
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_connections.Add(connection);
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_connections.Add(connection);
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}
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}
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/// <inheritdoc />
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public void Dispose()
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public void Dispose()
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{
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{
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if (_disposed)
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if (_disposed)
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@ -336,7 +336,7 @@ namespace Emby.Server.Implementations.Data
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_jsonOptions = JsonDefaults.Options;
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_jsonOptions = JsonDefaults.Options;
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DbFilePath = Path.Combine(_config.ApplicationPaths.DataPath, "library.db");
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DbFilePath = Path.Combine(_config.ApplicationPaths.DataPath, "library.db");
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ReadConnectionsCount = 5;
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ReadConnectionsCount = Environment.ProcessorCount * 2;
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}
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}
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/// <inheritdoc />
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/// <inheritdoc />
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