cv::AsyncArray Class Reference

Returns result of asynchronous operations. More...

#include <async.hpp>

Public Member Functions
	~AsyncArray () CV_NOEXCEPT
CV_WRAP	AsyncArray () CV_NOEXCEPT
	AsyncArray (const AsyncArray &o) CV_NOEXCEPT
AsyncArray &	operator= (const AsyncArray &o) CV_NOEXCEPT
CV_WRAP void	release () CV_NOEXCEPT
CV_WRAP void	get (OutputArray dst) const
bool	get (OutputArray dst, int64 timeoutNs) const
CV_WRAP bool	get (OutputArray dst, double timeoutNs) const
bool	wait_for (int64 timeoutNs) const
CV_WRAP bool	wait_for (double timeoutNs) const
CV_WRAP bool	valid () const CV_NOEXCEPT
	AsyncArray (AsyncArray &&o)
AsyncArray &	operator= (AsyncArray &&o) CV_NOEXCEPT
template<typename _Rep , typename _Period >
bool	get (OutputArray dst, const std::chrono::duration< _Rep, _Period > &timeout)
template<typename _Rep , typename _Period >
bool	wait_for (const std::chrono::duration< _Rep, _Period > &timeout)
void *	_getImpl () const CV_NOEXCEPT

Protected Attributes
Impl *	p

Friends
struct	Impl

Detailed Description

Returns result of asynchronous operations.

Object has attached asynchronous state. Assignment operator doesn't clone asynchronous state (it is shared between all instances).

Result can be fetched via get() method only once.

Constructor & Destructor Documentation

~AsyncArray()

cv::AsyncArray::~AsyncArray

(

)

AsyncArray() [1/3]

CV_WRAP cv::AsyncArray::AsyncArray

(

)

AsyncArray() [2/3]

cv::AsyncArray::AsyncArray

(

const AsyncArray &

o

)

AsyncArray() [3/3]

cv::AsyncArray::AsyncArray ( AsyncArray &&  o )

inline

Member Function Documentation

_getImpl()

void* cv::AsyncArray::_getImpl ( ) const

inline

get() [1/4]

CV_WRAP void cv::AsyncArray::get

(

OutputArray

dst

)

const

Fetch the result.

Parameters

[out]

dst

destination array

Waits for result until container has valid result. Throws exception if exception was stored as a result.

Throws exception on invalid container state.

Note

Result or stored exception can be fetched only once.

get() [2/4]

template<typename _Rep , typename _Period >

bool cv::AsyncArray::get ( OutputArray  dst, const std::chrono::duration< _Rep, _Period > &  timeout  )

inline

get() [3/4]

CV_WRAP bool cv::AsyncArray::get ( OutputArray  dst, double  timeoutNs  ) const

inline

get() [4/4]

bool cv::AsyncArray::get	(	OutputArray	dst,
		int64	timeoutNs
	)		const

Retrieving the result with timeout

Parameters

[out]	dst	destination array
[in]	timeoutNs	timeout in nanoseconds, -1 for infinite wait

Returns

true if result is ready, false if the timeout has expired

Note

Result or stored exception can be fetched only once.

operator=() [1/2]

AsyncArray& cv::AsyncArray::operator= ( AsyncArray &&  o )

inline

operator=() [2/2]

AsyncArray& cv::AsyncArray::operator=

(

const AsyncArray &

o

)

release()

CV_WRAP void cv::AsyncArray::release

(

)

valid()

CV_WRAP bool cv::AsyncArray::valid

(

)

const

wait_for() [1/3]

template<typename _Rep , typename _Period >

bool cv::AsyncArray::wait_for ( const std::chrono::duration< _Rep, _Period > &  timeout )

inline

wait_for() [2/3]

CV_WRAP bool cv::AsyncArray::wait_for ( double  timeoutNs ) const

inline

wait_for() [3/3]

bool cv::AsyncArray::wait_for

(

int64

timeoutNs

)

const

Friends And Related Function Documentation

Impl

friend struct Impl

friend

Member Data Documentation

p

Impl* cv::AsyncArray::p

protected

---

The documentation for this class was generated from the following file:

• build/release/_deps/opencv-src/include/opencv4/opencv2/core/async.hpp