PIThreadPoolExecutor Class Reference

Fixed-size pool of worker threads for fire-and-forget tasks. More...

#include <pithreadpoolexecutor.h>

Public Member Functions
	PIThreadPoolExecutor (int corePoolSize)
	Constructs executor with corePoolSize worker threads.
virtual	~PIThreadPoolExecutor ()
	Stops worker threads and destroys executor resources.
void	execute (const std::function< void()> &runnable)
	Submits runnable for asynchronous execution by a worker thread.This is a best-effort fire-and-forget call and does not report whether the task was accepted. \After shutdown requests new tasks are ignored.
void	shutdownNow ()
	Requests immediate shutdown and stops worker threads without waiting for queued tasks to finish.
void	shutdown ()
	Requests orderly shutdown: new tasks are rejected and workers stop after the current queue is drained. This method does not wait for worker termination.
bool	isShutdown () const
	Returns true after shutdown() or shutdownNow() has been requested.
bool	awaitTermination (PISystemTime timeout)
	Waits up to timeout for all worker threads to finish. false if the timeout expires first.

Detailed Description

Fixed-size pool of worker threads for fire-and-forget tasks.

Thread pools address two different problems: they usually provide improved performance when executing large numbers of asynchronous tasks, due to reduced per-task invocation overhead, and they provide a means of bounding and managing the resources, including threads, consumed when executing a collection of tasks.