/// <summary>
/// This is for internal use only.
/// Removes the lock context
/// </summary>
/// <param name="lockManager">Lock manager object which contains the lock to be removed</param>
/// <param name="lockOrKey">name of the lock</param>
/// <returns>LockContext object if found. null otherwise</returns>
public LockContext RemoveLockContext(ILockManager lockManager, object lockOrKey)
{
if (lockManager == null)
{
throw new ArgumentNullException(
string.Format(CultureInfo.CurrentCulture, SR.Error_NullArgument_Formatted, "lockManager"));
}
if (lockOrKey == null)
{
throw new ArgumentNullException(
string.Format(CultureInfo.CurrentCulture, SR.Error_NullArgument_Formatted, "lockOrKey"));
}
LockContext removedLockContext = null;
for (var i = 0; i < this.LockContexts.Count; i++)
{
var lockContext = this.LockContexts[i];
if (lockContext.IsEqual(lockManager, lockOrKey) == true)
{
this.LockContexts.RemoveAt(i);
removedLockContext = lockContext;
break;
}
}
return(removedLockContext);
}
private void AddReadLock(LockContext lockContext)
{
if (this.readLockContexts == null)
{
throw new InvalidOperationException("Read locks cannot be added once the read locks has been released.");
}
this.readLockContexts.Add(lockContext);
}
/// <summary>
/// This is for internal use only.
/// Removes the lock context
/// </summary>
/// <param name="lockContext">The lock context to be removed</param>
public void RemoveLockContext(LockContext lockContext)
{
if (lockContext == null)
{
throw new ArgumentNullException(
string.Format(CultureInfo.CurrentCulture, SR.Error_NullArgument_Formatted, "lockContext"));
}
for (var i = 0; i < this.LockContexts.Count; i++)
{
if (this.LockContexts[i] == lockContext)
{
this.LockContexts.RemoveAt(i);
}
}
}
/// <summary>
/// Adds a lock context.
/// </summary>
/// <param name="lockContext">
/// The lock context.
/// </param>
/// <param name="lockMode">
/// Mode of the lock.
/// For committing transaction read locks are released before IO.
/// </param>
public void AddLockContext(LockContext lockContext, LockContextMode lockMode = LockContextMode.Write)
{
if (lockContext == null)
{
throw new ArgumentNullException(
string.Format(CultureInfo.CurrentCulture, SR.Error_NullArgument_Formatted, "lockContext"));
}
if (lockMode == LockContextMode.Write)
{
this.LockContexts.Add(lockContext);
}
else
{
this.AddReadLock(lockContext);
}
}