L4Re::Rm::Unique_region< T > Class Template Reference

Unique region. More...

#include <rm>

Inheritance diagram for L4Re::Rm::Unique_region< T >:

Collaboration diagram for L4Re::Rm::Unique_region< T >:

Public Member Functions
	Unique_region () noexcept
	Construct an invalid Unique_region.
	Unique_region (T addr) noexcept
	Construct a Unique_region from an address.
	Unique_region (T addr, L4::Cap< Rm > const &rm) noexcept
	Construct a valid Unique_region from an address and a region manager.
	Unique_region (Unique_region &&o) noexcept
	Move-Construct a Unique_region.
Unique_region &	operator= (Unique_region &&o) noexcept
	Move-assign a Unique_region.
	~Unique_region () noexcept
	Destructor.
T	get () const noexcept
	Return the address.
T	release () noexcept
	Return the address and invalidate the Unique_region.
void	reset (T addr, L4::Cap< Rm > const &rm) noexcept
	Set new address and region manager.
void	reset () noexcept
	Make the Unique_region invalid.
bool	is_valid () const noexcept
	Check if the Unique_region is valid.
T	operator* () const noexcept
	Dereference the address.
T	operator-> () const noexcept
	Member access for the address.

Detailed Description

template<typename T>
class L4Re::Rm::Unique_region< T >

Unique region.

Capture a single region with automatic detach on destruction and unique ownership. Stores the start address and the region-mapper capability internally. A unique region is valid precisely if the internal region-mapper capability is valid. The features for unique ownership and automatic detach are only active for valid unique regions.

Definition at line 435 of file rm.

Constructor & Destructor Documentation

Unique_region() [1/3]

template<typename T>

L4Re::Rm::Unique_region< T >::Unique_region ( T addr )

inlineexplicitnoexcept

Construct a Unique_region from an address.

No region manager is set.

Parameters

addr	The new address

Definition at line 456 of file rm.

Unique_region() [2/3]

template<typename T>

L4Re::Rm::Unique_region< T >::Unique_region ( T addr, L4::Cap< Rm > const & rm )

inlinenoexcept

Construct a valid Unique_region from an address and a region manager.

Parameters

addr	The address
rm	The region manager

Definition at line 465 of file rm.

Unique_region() [3/3]

template<typename T>

L4Re::Rm::Unique_region< T >::Unique_region ( Unique_region< T > && o )

inlinenoexcept

Move-Construct a Unique_region.

Parameters

o	L-value reference to other region.

Definition at line 473 of file rm.

~Unique_region()

template<typename T>

L4Re::Rm::Unique_region< T >::~Unique_region ( )

inlinenoexcept

Destructor.

If the region is valid, call detach.

Definition at line 498 of file rm.

Member Function Documentation

get()

template<typename T>

T L4Re::Rm::Unique_region< T >::get ( ) const

inlinenoexcept

Return the address.

Returns

the address

Definition at line 509 of file rm.

Referenced by L4Re::Util::Event_t< Default_event_payload >::init(), and L4Re::Util::Event_t< Default_event_payload >::init_poll().

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is_valid()

template<typename T>

bool L4Re::Rm::Unique_region< T >::is_valid ( ) const

inlinenoexcept

Check if the Unique_region is valid.

Returns

true iff the Unique_region is valid

Definition at line 549 of file rm.

operator=()

template<typename T>

Unique_region & L4Re::Rm::Unique_region< T >::operator= ( Unique_region< T > && o )

inlinenoexcept

Move-assign a Unique_region.

Parameters

o	L-value reference to region to assign from

Definition at line 481 of file rm.

release()

template<typename T>

T L4Re::Rm::Unique_region< T >::release ( )

inlinenoexcept

Return the address and invalidate the Unique_region.

Returns

the address

Definition at line 517 of file rm.

reset()

template<typename T>

void L4Re::Rm::Unique_region< T >::reset ( T addr, L4::Cap< Rm > const & rm )

inlinenoexcept

Set new address and region manager.

Parameters

addr	The new address
rm	The new region manager

Definition at line 529 of file rm.

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

• l4/re/rm