Wt  4.0.2
Public Member Functions | List of all members
Wt::WIOService Class Reference

An I/O service. More...

#include <Wt/WIOService>

Inherits io_service.

Public Member Functions

 WIOService ()
 Creates a new IO service. More...
 
void setThreadCount (int number)
 Configures the number of threads. More...
 
int threadCount () const
 Returns the thread count.
 
void start ()
 Starts the I/O service. More...
 
void stop ()
 Stops the I/O service. More...
 
void post (const std::function< void()> &function)
 Posts a function into the thread-pool. More...
 
void schedule (std::chrono::steady_clock::duration millis, const std::function< void()> &function)
 Schedules a function on the thread-pool. More...
 
virtual void initializeThread ()
 Initializes a thread. More...
 

Detailed Description

An I/O service.

! An I/O service combines (boost::)asio::io_service with a thread pool.

Constructor & Destructor Documentation

Wt::WIOService::WIOService ( )

Creates a new IO service.

See also
setServerConfiguration()

Member Function Documentation

void Wt::WIOService::initializeThread ( )
virtual

Initializes a thread.

This function is called for every new thread created, and can be used to configure the thread, e.g. with respect to scheduling priorities.

void Wt::WIOService::post ( const std::function< void()> &  function)

Posts a function into the thread-pool.

The function will be executed within a thread of the thread-pool.

This method returns immediately.

void Wt::WIOService::schedule ( std::chrono::steady_clock::duration  millis,
const std::function< void()> &  function 
)

Schedules a function on the thread-pool.

The function will be executed after a time out, specified in milli-seconds, on the thread pool.

void Wt::WIOService::setThreadCount ( int  number)

Configures the number of threads.

This must be configured before the server is started using start().

The default thread count is 5 (or is configured by WServer from information in the configuration file).

void Wt::WIOService::start ( )

Starts the I/O service.

This will start the internal thread pool to process work for the I/O service, if not already started.

void Wt::WIOService::stop ( )

Stops the I/O service.

This will stop the internal thread pool. The method will block until all work has been completed.


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