lwt-dllist - Mutable doubly-linked list

An Lwt_dllist is an object holding a list of elements which support the following operations:

• adding an element to the left or the right in time and space O(1)
• taking an element from the left or the right in time and space O(1)
• removing a previously added element from a sequence in time and space O(1)
• removing an element while the sequence is being traversed.

History

This module was formerly part of the Lwt core distribution as the Lwt_sequence module, but has been pulled out into a separate library since it is really just an implementation detail of Lwt.

You can migrate existing uses of Lwt_sequence into Lwt_dllist by simply renaming the module. The implementation of the module remains unchanged, but the name reflects the fact that the implementation is a doubly-linked list.

Further Reading

• Docs: https://mirage.github.io/lwt-dllist
• Issues: https://github.com/mirage/lwt-dllist/issues
• Discussion: https://discuss.ocaml.org with the MirageOS tag.