Struct ExecLock 

pub struct ExecLock { /* private fields */ }

The executor’s lock: the port’s recursive priority-inheriting mutex and the two calls that take and give it. Installed once, before any second thread can reach the executor (super::Executor::set_exec_lock), and never changed while one can.

Implementations

impl ExecLock

pub unsafe fn new( ctx: *mut c_void, lock: ExecLockFn, unlock: ExecLockFn, ) -> Option<Self>

A lock over the port’s mutex at ctx, already initialised by the caller. None for a NULL ctx.

Safety

ctx is NULL or an initialised recursive mutex that lock / unlock take and give, and it outlives every executor the lock is installed on.

pub unsafe fn with_thread_id(self, id: ThreadIdFn) -> Self

This lock, with the port’s thread identity: a pass that holds it releases it around each user callback (phase-509 P9b item 2).

Safety

id answers the calling thread’s identity, from any thread, equal on one thread and distinct across threads that are alive together.

Trait Implementations

impl Clone for ExecLock

fn clone(&self) -> ExecLock

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ExecLock

impl Debug for ExecLock

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Send for ExecLock

impl Sync for ExecLock