public MySqlField(Driver driver)
{
this.driver = driver;
connVersion = driver.Version;
maxLength = 1;
binaryOk = true;
}
private void EnqueueIdle(Driver driver)
{
driver.IdleSince = DateTime.Now;
idlePool.Enqueue(driver);
}
/// <summary>
/// Removes a connection from the in use pool. The only situations where this method
/// would be called are when a connection that is in use gets some type of fatal exception
/// or when the connection is being returned to the pool and it's too old to be
/// returned.
/// </summary>
/// <param name="driver"></param>
public void RemoveConnection(Driver driver)
{
lock ((inUsePool as ICollection).SyncRoot)
{
if (inUsePool.Contains(driver))
{
inUsePool.Remove(driver);
Interlocked.Increment(ref available);
autoEvent.Set();
}
}
// if we are being cleared and we are out of connections then have
// the manager destroy us.
if (beingCleared && NumConnections == 0)
MySqlPoolManager.RemoveClearedPool(this);
}
public void ReleaseConnection(Driver driver)
{
lock ((inUsePool as ICollection).SyncRoot)
{
if (inUsePool.Contains(driver))
inUsePool.Remove(driver);
}
if (driver.ConnectionLifetimeExpired() || beingCleared)
{
driver.Close();
Debug.Assert(!idlePool.Contains(driver));
}
else
{
lock ((idlePool as ICollection).SyncRoot)
{
EnqueueIdle(driver);
}
}
Interlocked.Increment(ref available);
autoEvent.Set();
}
public static Driver Create(MySqlConnectionStringBuilder settings)
{
Driver d = null;
#if !NETSTANDARD1_6
try
{
if (MySqlTrace.QueryAnalysisEnabled || settings.Logging || settings.UseUsageAdvisor)
d = new TracingDriver(settings);
}
catch (TypeInitializationException ex)
{
if (!(ex.InnerException is SecurityException))
throw ex;
//Only rethrow if InnerException is not a SecurityException. If it is a SecurityException then
//we couldn't initialize MySqlTrace because we don't have unmanaged code permissions.
}
#else
if (settings.Logging || settings.UseUsageAdvisor)
{
throw new NotImplementedException( "Logging not supported in this WinRT release." );
}
#endif
if (d == null)
d = new Driver(settings);
//this try was added as suggested fix submitted on MySql Bug 72025, socket connections are left in CLOSE_WAIT status when connector fails to open a new connection.
//the bug is present when the client try to get more connections that the server support or has configured in the max_connections variable.
try
{
d.Open();
}
catch (Exception ex)
{
d.Dispose();
throw ex;
}
return d;
}
public NativeDriver(Driver owner)
{
this.owner = owner;
threadId = -1;
}
public static void RemoveConnection(Driver driver)
{
Debug.Assert(driver != null);
MySqlPool pool = driver.Pool;
if (pool == null) return;
pool.RemoveConnection(driver);
}