//! Create, inspect or modify RIOT processes ("threads")
//!
//! ## Tokens
//!
//! Some thread creation mechanisms (currently only
//! [`riot_main_with_tokens!`](crate::riot_main_with_tokens!) and not those in here) are "with
//! tokens". With these, the zero-sized type [StartToken] is used to pass along the information
//! that the execution is currently happening in a thread, and more importantly that some
//! operations doable only once per thread (eg. setting up a message queue) have not yet happed.
//!
//! When threads are created that way, they need to return an [EndToken] which ensures that
//! no operations that preclude the termination of a thread have happened.
//!
//! This has multiple implementations:
//! - one wrapping the RIOT (C) core/ API
//!
//! The right implementation is selected with help from the build system, similar to how std's
//! platform dependent backends are selected.

mod riot_c;
pub use riot_c::*;

mod tokenparts;
#[cfg(doc)]
pub use tokenparts::TokenParts;
#[allow(deprecated)]
pub use tokenparts::{EndToken, InIsr, InThread, StartToken, TerminationToken, ValueInThread};

mod stack_stats;
pub use stack_stats::{StackStats, StackStatsError};

/// Error returned by PID methods when no thread with that PID exists
#[derive(Debug)]
pub struct NoSuchThread;