Struct collective::thread::manager::ThreadManager
source · pub struct ThreadManager { /* private fields */ }
Expand description
An abstraction for building simple multi-threaded applications.
It’s goal is to simplify the process of setting up an application composed of a fixed number of threads, adding in support for common tasks such as detecting panics and waiting for some threads to finish.
It achieves this by focusing on a narrow use-case:
- The application has a fixed number of threads.
- The threads are all started at the same time during initialization.
- A panic in any thread is expected to trigger a shut down of the application.
- Some threads finishing should trigger a shut down of the application.
For example, a web application has a main server thread and a metrics/stats server thread.
ThreadManager
is a higher level abstraction built on top of
ThreadMonitor
, which is used to detect and handle panics in other
threads. ThreadMonitor
can be used directly if ThreadManager
does
not meet a use-case or low level control is needed.
Limitations:
- Only threads spawned directly through the manager interface can be monitored. The manager doesn’t monitor other threads spawned separately, even if it’s done inside one of the original spawned threads.
- The return type of the
JoinHandle
is expected to be()
.
Implementations§
source§impl ThreadManager
impl ThreadManager
sourcepub fn new(monitor: &'static ThreadMonitor) -> ThreadManager
pub fn new(monitor: &'static ThreadMonitor) -> ThreadManager
Instantiates a new manager.
A static reference to a ThreadMonitor
that has already been
initialized is expected.
See the documentation of ThreadMonitor::init
for more details.
sourcepub fn spawn<F>(&mut self, f: F, triggers_shutdown: bool) -> Thread
pub fn spawn<F>(&mut self, f: F, triggers_shutdown: bool) -> Thread
Spawns a new thread to be managed.
Unlike std::thread::spawn
, a copy of the Thread
will be
returned instead of a std::thread::JoinHandle
. The handle will be
used internally by the manager.
sourcepub fn join_all(self) -> Result<FinishReason, Error>
pub fn join_all(self) -> Result<FinishReason, Error>
Waits for any thread marked as triggers_shutdown
to finish or for one
or more threads to panic.
A FinishReason
will be returned providing context into why the
manager returned.
Auto Trait Implementations§
impl Freeze for ThreadManager
impl !RefUnwindSafe for ThreadManager
impl Send for ThreadManager
impl !Sync for ThreadManager
impl Unpin for ThreadManager
impl !UnwindSafe for ThreadManager
Blanket Implementations§
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