/// <summary>
/// Gets the connection asynchronous.
/// </summary>
/// <param name="writable">if set to <c>true</c> [writable].</param>
/// <returns></returns>
public async Task <SQLiteParallelConnection> GetConnectionAsync(bool writable)
{
var ct = PoolCancellationToken.Token;
ct.ThrowIfCancellationRequested();
if (writable)
{
var sw = Stopwatch.StartNew();
await this.writeLock.WaitAsync(ct);
// TODO shcarr, Ocassionally i have see that applogger.default is null. I don't think we want to have a static variable for logging globally assigned like this
// also becuase this is just performance related metrics, i am adding this null check.
if (AppLogger.Default != null)
{
if (sw.ElapsedMilliseconds > 1000)
{
AppLogger.Default.WriteWarning("[DB.WAIT.WRITE] Pool lock wait time {0}ms", sw.ElapsedMilliseconds);
}
else if (sw.ElapsedMilliseconds > 100)
{
AppLogger.Default.WriteInfo("[DB.WAIT.WRITE] Pool lock wait time {0}ms", sw.ElapsedMilliseconds);
}
else if (sw.ElapsedMilliseconds > 10)
{
AppLogger.Default.WriteVerbose("[DB.WAIT.WRITE] Pool lock wait time {0}ms", sw.ElapsedMilliseconds);
}
}
return(SQLiteParallelConnectionCache.Take(this.databasePath, false, ct) ??
CreateNew(this.writeLock,
this.databasePath,
SQLiteOpenFlags.ReadWrite | SQLiteOpenFlags.Create));
}
var rsw = Stopwatch.StartNew();
await this.readLock.WaitAsync(ct);
if (AppLogger.Default != null)
{
if (rsw.ElapsedMilliseconds > 1000)
{
AppLogger.Default.WriteWarning("[DB.WAIT.READ] Pool lock wait time {0}ms", rsw.ElapsedMilliseconds);
}
else if (rsw.ElapsedMilliseconds > 100)
{
AppLogger.Default.WriteInfo("[DB.WAIT.READ] Pool lock wait time {0}ms", rsw.ElapsedMilliseconds);
}
else if (rsw.ElapsedMilliseconds > 10)
{
AppLogger.Default.WriteVerbose("[DB.WAIT.READ] Pool lock wait time {0}ms", rsw.ElapsedMilliseconds);
}
}
return(SQLiteParallelConnectionCache.Take(this.databasePath, true, ct) ?? CreateNew(this.readLock, this.databasePath, SQLiteOpenFlags.ReadOnly));
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
/// <param name="disposing"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected override void Dispose(bool disposing)
{
if (!disposing || !SQLiteParallelConnectionCache.IsEnable)
{
base.Dispose(false);
}
else
{
SQLiteParallelConnectionCache.Cache(this.DatabasePath, this);
}
if (this.connectionLock != null)
{
this.connectionLock.Release();
}
}
