Examples of com.rabbitmq.utility.IntAllocator

com.rabbitmq.utility.IntAllocator

A class for allocating integers from a given range that uses a {@link BitSet} representation of the free integers.

Concurrent Semantics:
This class is not thread safe.

Implementation notes:
This was originally an ordered chain of non-overlapping Intervals, together with a fixed size array cache for freed integers.
{@link #reserve()} was expensive in this scheme, whereas in thepresent implementation it is O(1), as is {@link #free()}.
Although {@link #allocate()} is slightly slower than O(1) and in theworst case could be O(N), the use of the {@link #lastIndex} fieldfor starting the next scan for free integers means this is negligible.
The data representation overhead is O(N) where N is the size of the allocation range. One long is used for every 64 integers in the range.
Very little Object creation and destruction occurs in use.

            // The framing encoding only allows for unsigned 16-bit integers
            // for the channel number
            channelMax = (1 << 16) - 1;
        }
        _channelMax = channelMax;
        channelNumberAllocator = new IntAllocator(1, channelMax);


        this.workService = workService;
    }

            // The framing encoding only allows for unsigned 16-bit integers
            // for the channel number
            channelMax = (1 << 16) - 1;
        }
        _channelMax = channelMax;
        channelNumberAllocator = new IntAllocator(1, channelMax);


        this.workService = workService;
        this.threadFactory = threadFactory;
    }

Examples of com.rabbitmq.utility.IntAllocator

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