예제 #1
0
        /// <summary>
        /// try to rent some memory
        /// </summary>
        /// <param name="length">the length of memory</param>
        /// <param name="rentedMemory">rented memory</param>
        /// <returns>if false, rent operation is failed</returns>
        public bool TryRent(int length, out RentedMemory rentedMemory)
        {
            if (indexer.TryLock(length, out var range))
            {
                rentedMemory = new RentedMemory(this, range, bytes[range]);
                return(true);
            }

            rentedMemory = default;
            return(false);
        }
예제 #2
0
        /// <summary>
        /// try to rent some memory
        /// </summary>
        /// <param name="length">the length of memory</param>
        /// <param name="rentedMemory">rented memory</param>
        /// <returns>if false, rent operation is failed</returns>
        public bool TryRent(int length, out RentedMemory rentedMemory)
        {
            if (length > BlockSize)
            {
                rentedMemory = default;
                return(false);
            }

            rentableResetEvent.WaitOne();

            Interlocked.Increment(ref rentingCount);

            try
            {
                foreach (var rentableMemories in pool)
                {
                    if (rentableMemories.TryRent(length, out rentedMemory))
                    {
                        return(true);
                    }
                }

                if (BlockCount < MaxBlockCount)
                {
                    rentableResetEvent.Reset();
                    expansionRequiredResetEvent.Set();
                }

                rentedMemory = default;
                return(false);
            }
            finally
            {
                Interlocked.Decrement(ref rentingCount);
            }
        }
예제 #3
0
 /// <summary>
 /// return rented memory
 /// </summary>
 /// <param name="rentedMemory">rented memory</param>
 public void Return(RentedMemory rentedMemory)
 {
     indexer.Unlock(rentedMemory.RentedRange);
     rentedMemory.Memory.Span.Fill(0);
 }