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update db connections

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This commit is contained in:
Luke Pulverenti
2016-12-13 10:44:34 -05:00
parent 71854c1a09
commit 81d685b882
7 changed files with 161 additions and 154 deletions
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64
Emby.Server.Implementations/Data/BaseSqliteRepository.cs
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@@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Model.Logging;
@@ -43,6 +44,7 @@ namespace Emby.Server.Implementations.Data
//CheckOk(rc);
rc = raw.sqlite3_config(raw.SQLITE_CONFIG_MULTITHREAD, 1);
//rc = raw.sqlite3_config(raw.SQLITE_CONFIG_SINGLETHREAD, 1);
//rc = raw.sqlite3_config(raw.SQLITE_CONFIG_SERIALIZED, 1);
//CheckOk(rc);
@@ -54,9 +56,20 @@ namespace Emby.Server.Implementations.Data
private static bool _versionLogged;
private string _defaultWal;
protected ManagedConnection _connection;
protected SQLiteDatabaseConnection CreateConnection(bool isReadOnly = false)
protected virtual bool EnableSingleConnection
{
get { return true; }
}
protected ManagedConnection CreateConnection(bool isReadOnly = false)
{
if (_connection != null)
{
return _connection;
}
lock (WriteLock)
{
if (!_versionLogged)
@@ -82,7 +95,15 @@ namespace Emby.Server.Implementations.Data
connectionFlags |= ConnectionFlags.ReadWrite;
}
connectionFlags |= ConnectionFlags.SharedCached;
if (EnableSingleConnection)
{
connectionFlags |= ConnectionFlags.PrivateCache;
}
else
{
connectionFlags |= ConnectionFlags.SharedCached;
}
connectionFlags |= ConnectionFlags.NoMutex;
var db = SQLite3.Open(DbFilePath, connectionFlags, null);
@@ -95,11 +116,16 @@ namespace Emby.Server.Implementations.Data
}
var queries = new List<string>
{
//"PRAGMA cache size=-10000"
//"PRAGMA read_uncommitted = true",
"PRAGMA synchronous=Normal"
};
{
//"PRAGMA cache size=-10000"
//"PRAGMA read_uncommitted = true",
"PRAGMA synchronous=Normal"
};
if (CacheSize.HasValue)
{
queries.Add("PRAGMA cache_size=-" + CacheSize.Value.ToString(CultureInfo.InvariantCulture));
}
if (EnableTempStoreMemory)
{
@@ -135,10 +161,22 @@ namespace Emby.Server.Implementations.Data
db.Execute(query);
}
return db;
_connection = new ManagedConnection(db, false);
return _connection;
}
}
public IStatement PrepareStatement(ManagedConnection connection, string sql)
{
return connection.PrepareStatement(sql);
}
public IStatement PrepareStatementSafe(ManagedConnection connection, string sql)
{
return connection.PrepareStatement(sql);
}
public IStatement PrepareStatement(IDatabaseConnection connection, string sql)
{
return connection.PrepareStatement(sql);
@@ -159,7 +197,7 @@ namespace Emby.Server.Implementations.Data
return sql.Select(connection.PrepareStatement).ToList();
}
protected void RunDefaultInitialization(IDatabaseConnection db)
protected void RunDefaultInitialization(ManagedConnection db)
{
var queries = new List<string>
{
@@ -246,6 +284,12 @@ namespace Emby.Server.Implementations.Data
{
using (WriteLock.Write())
{
if (_connection != null)
{
_connection.Close();
_connection = null;
}
CloseConnection();
}
}
@@ -340,7 +384,7 @@ namespace Emby.Server.Implementations.Data
//{
// return new DummyToken();
//}
return new ReadLockToken(obj);
return new WriteLockToken(obj);
}
public static IDisposable Write(this ReaderWriterLockSlim obj)
{