package kcas_data

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Transactions on queues.

val is_empty : 'a t -> bool Kcas.Tx.t

is_empty s determines whether the queue q is empty.

val length : 'a t -> int Kcas.Tx.t

length q returns the length of the queue q.

val clear : 'a t -> unit Kcas.Tx.t

clear q removes all elements from the queue q.

val swap : 'a t -> 'a t -> unit Kcas.Tx.t

swap q1 q2 exchanges the contents of the queues q1 and q2.

val to_seq : 'a t -> 'a Seq.t Kcas.Tx.t

to_seq s returns a domain safe sequence for iterating through the elements of the queue front to back.

The sequence is based on a constant time, O(1), snapshot of the queue and modifications of the queue have no effect on the sequence.

val add : 'a -> 'a t -> unit Kcas.Tx.t

add q x adds the element x at the end of the queue q.

val push : 'a -> 'a t -> unit Kcas.Tx.t

push is a synonym for add.

val peek_opt : 'a t -> 'a option Kcas.Tx.t

peek_opt q returns the first element in queue q, without removing it from the queue, or returns None if the queue is empty.

val take_opt : 'a t -> 'a option Kcas.Tx.t

take_opt q removes and returns the first element in queue q, or returns None if the queue is empty.