CSPspEmu.Hle.Formats.audio.At3.SUB.MaiQueue0.In C# (CSharp) Method

        public int In(byte* head, int length)
        {
            if (status != 0) return 0;

            //while ( (is_ining) || (is_outing) ) Mai_Sleep(1);
            //is_ining = 1;
            #if BIT_READER_THREAD_SAFE
            lock (this)
            #endif
            {

                var @base = this.@base;
                int rear = this.rear;
                int front = this.front;
                int max_size = this.max_size;

                int yoyuu = (front - rear - 1 + max_size) % max_size;
                int copy_length = (length > yoyuu) ? yoyuu : length;

                int ato = max_size - rear;
                int copy1 = (copy_length > ato) ? ato : copy_length;
                int copy2 = (copy_length > ato) ? (copy_length - ato) : 0;

                if (copy1 != 0)
                {
                    //for (int n = 0; n < copy1; n++) @base[rear + n] = head[n];
                    Marshal.Copy(new IntPtr(head), @base, rear, copy1);
                    rear = (rear + copy1) % max_size;
                    head += copy1;
                }

                if (copy2 != 0)
                {
                    //for (int n = 0; n < copy2; n++) @base[rear + n] = head[n];
                    Marshal.Copy(new IntPtr(head), @base, rear, copy2);
                    rear = (rear + copy2) % max_size;
                    head += copy2;
                }

                this.rear = rear;

                //is_ining = 0;
                return copy_length;
            }
        }