private void ReturnRentedObject(RentedObject rentedObject)
{
#if POOLING
lock (Sentinel)
{
rentedObject.IsRented = false;
if (rentedObject.Index < MinimumUnrentedIndex)
{
MinimumUnrentedIndex = rentedObject.Index;
}
}
#endif
}
/// <summary>
/// Rents an object from the pool. If the pool has no available objects, it creates
/// a new object by calling <see cref="ObjectConstructor"/>.
/// </summary>
/// <returns>
/// The rented object which must be disposed of to return it to the pool.
/// </returns>
public RentedObject Rent()
{
#if POOLING
lock (Sentinel)
{
// Loop through entries to find an unrented one.
while (true)
{
if (MinimumUnrentedIndex == CreatedObjectCount)
{
if (MinimumUnrentedIndex == PooledObjectCapacity)
{
// Grow the array.
int newPooledObjectCapacity = PooledObjectCapacity * 2;
RentedObject[] newPooledObjects = new RentedObject[newPooledObjectCapacity];
Array.Copy(PooledObjects, newPooledObjects, PooledObjectCapacity);
PooledObjectCapacity = newPooledObjectCapacity;
PooledObjects = newPooledObjects;
}
// Create a new object and store at the current index.
TPooledObject newObject = ObjectConstructor();
RentedObject unrentedObject = new RentedObject(this, newObject, MinimumUnrentedIndex);
PooledObjects[MinimumUnrentedIndex] = unrentedObject;
MinimumUnrentedIndex++;
CreatedObjectCount++;
return(unrentedObject);
}
// Reuse pooled object at current index or move onto the next.
RentedObject pooledObject = PooledObjects[MinimumUnrentedIndex];
if (!pooledObject.IsRented)
{
pooledObject.IsRented = true;
return(pooledObject);
}
MinimumUnrentedIndex++;
}
}
#else
return(new RentedObject(this, ObjectConstructor(), 0));
#endif
}