Tango::TimedAttrData< T > Class Template Reference

This class is used to store one element of an attribute history stack. More...

#include <pollext.h>

Inherits Tango::AttrData<T>.

List of all members.

Public Member Functions
Miscellaneous constructors for scalar attribute
	TimedAttrData (const T *p_data, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, const T *p_wr_data, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, Tango::AttrQuality qual, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, const T *p_wr_data, Tango::AttrQuality qual, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, Tango::AttrQuality qual, bool rel, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, const T *p_wr_data, Tango::AttrQuality qual, bool rel, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, const T *p_wr_data, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, Tango::AttrQuality qual, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, const T *p_wr_data, Tango::AttrQuality qual, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, Tango::AttrQuality qual, bool rel, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, const T *p_wr_data, Tango::AttrQuality qual, bool rel, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
Miscellaneous constructors for spectrum attribute
	TimedAttrData (const T *p_data, long x, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, const T *p_wr_data, long x_wr, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, Tango::AttrQuality qual, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, const T *p_wr_data, long x_wr, Tango::AttrQuality qual, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, Tango::AttrQuality qual, bool rel, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, const T *p_wr_data, long x_wr, Tango::AttrQuality qual, bool rel, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, const T *p_wr_data, long x_wr, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, Tango::AttrQuality qual, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, const T *p_wr_data, long x_wr, Tango::AttrQuality qual, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, Tango::AttrQuality qual, bool rel, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, const T *p_wr_data, long x_wr, Tango::AttrQuality qual, bool rel, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
Miscellaneous constructors for image attribute
	TimedAttrData (const T *p_data, long x, long y, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, long y, const T *p_wr_data, long x_wr, long y_wr, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, long y, Tango::AttrQuality qual, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, long y, const T *p_wr_data, long x_wr, long y_wr, Tango::AttrQuality qual, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, long y, Tango::AttrQuality qual, bool rel, time_t when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, long y, const T *p_wr_data, long x_wr, long y_wr, Tango::AttrQuality qual, bool rel, time_t when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, long y, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, long y, const T *p_wr_data, long x_wr, long y_wr, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, long y, Tango::AttrQuality qual, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, long y, const T *p_wr_data, long x_wr, long y_wr, Tango::AttrQuality qual, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
	TimedAttrData (const T *p_data, long x, long y, Tango::AttrQuality qual, bool rel, struct timeval when)
	Create a new TimedAttrData object.
	TimedAttrData (const T *p_data, long x, long y, const T *p_wr_data, long x_wr, long y_wr, Tango::AttrQuality qual, bool rel, struct timeval when)
	Create a new TimedAttrData object for a R/W attribute.
Miscellaneous constructors for errors
	TimedAttrData (DevErrorList &errs, time_t when)
	Create a new TimedAttrData object for errors.
	TimedAttrData (DevErrorList &errs, timeval when)
	Create a new TimedAttrData object for errors.

---

Detailed Description

template<typename T>
class Tango::TimedAttrData< T >

This class is used to store one element of an attribute history stack.

Author

taurel

Revision

15556

---

Constructor & Destructor Documentation

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		const T *	p_wr_data,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	p_wr_data	Pointer to the written part of the attribute value
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		Tango::AttrQuality	qual,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed

Parameters:

	p_data	Pointer to the attribute value
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		const T *	p_wr_data,
		Tango::AttrQuality	qual,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed

Parameters:

	p_data	Pointer to the attribute value
	p_wr_data	Pointer to the written part of the attribute value
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		Tango::AttrQuality	qual,
		bool	rel,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

Parameters:

	p_data	Pointer to the attribute value
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data parameter must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		const T *	p_wr_data,
		Tango::AttrQuality	qual,
		bool	rel,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

Parameters:

	p_data	Pointer to the attribute value
	p_wr_data	Pointer to the written part of the attribute value
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data and p_wr_data parameters must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		const T *	p_wr_data,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	p_wr_data	Pointer to the written part of the attribute value
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		Tango::AttrQuality	qual,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed

Parameters:

	p_data	Pointer to the attribute value
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		const T *	p_wr_data,
		Tango::AttrQuality	qual,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed

Parameters:

	p_data	Pointer to the attribute value
	p_wr_data	Pointer to the written part of the attribute value
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		Tango::AttrQuality	qual,
		bool	rel,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

Parameters:

	p_data	Pointer to the attribute value
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data parameter must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		const T *	p_wr_data,
		Tango::AttrQuality	qual,
		bool	rel,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

Parameters:

	p_data	Pointer to the attribute value
	p_wr_data	Pointer to the written part of the attribute value
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data and p_wr_data parameters must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		const T *	p_wr_data,
		long	x_wr,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		Tango::AttrQuality	qual,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		const T *	p_wr_data,
		long	x_wr,
		Tango::AttrQuality	qual,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		Tango::AttrQuality	qual,
		bool	rel,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data parameter must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		const T *	p_wr_data,
		long	x_wr,
		Tango::AttrQuality	qual,
		bool	rel,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data and p_wr_data parameters must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		const T *	p_wr_data,
		long	x_wr,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		Tango::AttrQuality	qual,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		const T *	p_wr_data,
		long	x_wr,
		Tango::AttrQuality	qual,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		Tango::AttrQuality	qual,
		bool	rel,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data parameter must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		const T *	p_wr_data,
		long	x_wr,
		Tango::AttrQuality	qual,
		bool	rel,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data and p_wr_data parameters must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		const T *	p_wr_data,
		long	x_wr,
		long	y_wr,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	y_wr	The attribute written part y length
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		Tango::AttrQuality	qual,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		const T *	p_wr_data,
		long	x_wr,
		long	y_wr,
		Tango::AttrQuality	qual,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	y_wr	The attribute written part y length
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		Tango::AttrQuality	qual,
		bool	rel,
		time_t	when
	)			[inline]

Create a new TimedAttrData object.

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data parameter must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		const T *	p_wr_data,
		long	x_wr,
		long	y_wr,
		Tango::AttrQuality	qual,
		bool	rel,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	y_wr	The attribute written part y length
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data and p_wr_data parameters must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		const T *	p_wr_data,
		long	x_wr,
		long	y_wr,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed The attribute quality factor will be set to ATTR_VALID

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	y_wr	The attribute written part y length
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		Tango::AttrQuality	qual,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

The memory pointed to by the p_data parameter will not be freed

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		const T *	p_wr_data,
		long	x_wr,
		long	y_wr,
		Tango::AttrQuality	qual,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

The memory pointed to by the p_data and p_wr_data parameters will not be freed

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	y_wr	The attribute written part y length
	qual	The attribute quality factor
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		Tango::AttrQuality	qual,
		bool	rel,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object.

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data parameter must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	const T *	p_data,
		long	x,
		long	y,
		const T *	p_wr_data,
		long	x_wr,
		long	y_wr,
		Tango::AttrQuality	qual,
		bool	rel,
		struct timeval	when
	)			[inline]

Create a new TimedAttrData object for a R/W attribute.

Parameters:

	p_data	Pointer to the attribute value
	x	The attribute x length
	y	The attribute y length
	p_wr_data	Pointer to the written part of the attribute value
	x_wr	The attribute written part x length
	y_wr	The attribute written part y length
	qual	The attribute quality factor
	rel	Set to true if the memory pointed to by the p_data abd p_wr_data parameters must be freed
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	DevErrorList &	errs,
		time_t	when
	)			[inline]

Create a new TimedAttrData object for errors.

The created TimedAttrData is used to store attribute errors in the attribute history stack

Parameters:

	errs	The error stack
	when	The date

template<typename T >

Tango::TimedAttrData< T >::TimedAttrData	(	DevErrorList &	errs,
		timeval	when
	)			[inline]

Create a new TimedAttrData object for errors.

The created TimedAttrData is used to store attribute errors in the attribute history stack

Parameters:

	errs	The error stack
	when	The date

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

• pollext.h