In order to ensure proper coordination between threadpools, and especially
to make sure there's only one global threadpool,
rayon-core is actively
restricted from building multiple versions of itself into a single target.
You may see a build error like this in violation:
error: native library `rayon-core` is being linked to by more than one package, and can only be linked to by one package
While we strive to keep
rayon-core semver-compatible, it's still
possible to arrive at this situation if different crates have overly
restrictive tilde or inequality requirements for
conflicting requirements will need to be resolved before the build will
Allows access to the Rayon's thread local value which is preserved when moving jobs across threads
Contains the rayon thread pool configuration. Use
Provides the calling context to a closure called by
Represents a fork-join scope which can be used to spawn any number of tasks. See
Represents a user created thread-pool.
Error when initializing a thread pool.
Used to create a new
Holds worker-locals values for each thread in a thread pool. You can only access the worker local value through the Deref impl on the thread pool it was constructed on. It will panic otherwise
Returns the number of threads in the current registry. If this code is executing within a Rayon thread-pool, then this will be the number of threads for the thread-pool of the current thread. Otherwise, it will be the number of threads for the global thread-pool.
If called from a Rayon worker thread, indicates whether that
thread's local deque still has pending tasks. Otherwise, returns
If called from a Rayon worker thread, returns the index of that
thread within its current pool; if not called from a Rayon thread,
Deprecated in favor of
Takes two closures and potentially runs them in parallel. It returns a pair of the results from those closures.
Mark a Rayon worker thread as blocked. This triggers the deadlock handler if no other worker thread is active
Mark a previously blocked Rayon worker thread as unblocked
Create a "fork-join" scope
Fires off a task into the Rayon threadpool in the "static" or
"global" scope. Just like a standard thread, this task is not
tied to the current stack frame, and hence it cannot hold any
references other than those with