Crate sendable

Rc and Option lookalikes that facilitate sending interconnected data between threads.

This crate provides two types:

• SendRc<T>, a single-threaded reference-counted pointer like Rc that is Send if T is Send.
• SendOption<T>, a container like Option that is Send even if T is not Send.

Both types rely on run-time checks to enforce Rust’s safety guarantees. SendRc requires the pointers to be disabled before being sent to a different thread. SendOption requires the option to be set to None before being sent to another thread.

SendRc is designed for acyclic graphs and hierarchies with cross-references that are single-threaded and use interior mutability (Cell and RefCell), and which need to be occasionally transferred en masse to a different thread. Rc doesn’t allow that because it is not Send, and Arc doesn’t allow that because it requires T: Sync.

SendOption is designed for optional non-Send fields in otherwise Send types.

Crate optional features

• deepsize - implement the traits provided by the deepsize crate.

Re-exports

pub use send_opt::SendOption;

pub use send_rc::SendRc;

Modules

send_opt

Container like Option<T>, but Send even if T is not Send.

send_rc

Reference-counting pointer like Rc<T>, but which is Send if T is Send.