Downgrade writer to become a reader.

Drain the mailbox

True if range is empty.

Equivalent to size()==0.

Returned value may not reflect results of pending operations. This operation reads shared data and will trigger a race condition. */

True if list is empty; false otherwise.

Enable segment

Enqueues a task inside graph arena

Traverse tree of fitler-node in-order and add filter for each leaf

This is executed by an enqueued task, the "forwarder"

The "free" analogue to discard a previously allocated piece of memory.

Deallocate task pool that was allocated by means of allocate_task_pool.

similarly to front(), returns depth of the first range in the pool

call try_put_task and return list of received tasks

If memory mapping size is a multiple of huge page size, some OS kernels can use huge pages transparently. Use this when huge pages are requested.

Define order when the first filter is serial_in_order.

There is no portable way to get stack base address in Posix, however the modern Linux versions provide pthread_attr_np API that can be used to ob

as only left and right bounds are kept, we can return true for pointer not allocated by us, if more than single region was requested from OS

if all input_ports have items, spawn forward to try and consume tuples return a task if we are asked and did create one.

* Allocator initialization routine; * it is called lazily on the very first scalable_malloc call. */

envName - environment variable to get controlled mode