L4virtio::Ptr< T > Class Template Reference

Pointer used in virtio descriptors. More...

#include <virtqueue>

Inheritance diagram for L4virtio::Ptr< T >:

Collaboration diagram for L4virtio::Ptr< T >:

Public Types
enum	Invalid_type { Invalid }
	Type for making an invalid (NULL) Ptr. More...

Public Member Functions
	Ptr (Invalid_type)
	Make and invalid Ptr.
	Ptr (l4_uint64_t vm_addr)
	Make a Ptr from a raw 64bit address.
l4_uint64_t	get () const
bool	is_valid () const

Detailed Description

template<typename T>
class L4virtio::Ptr< T >

Pointer used in virtio descriptors.

As the descriptor contain guest addresses these pointers cannot be dereferenced directly.

Definition at line 47 of file virtqueue.

Member Enumeration Documentation

Invalid_type

template<typename T>

enum L4virtio::Ptr::Invalid_type

Type for making an invalid (NULL) Ptr.

Enumerator
Invalid	Use to set a Ptr to invalid (NULL).

Definition at line 51 of file virtqueue.

Member Function Documentation

get()

template<typename T>

l4_uint64_t L4virtio::Ptr< T >::get ( ) const

inline

Returns

The raw 64bit address of the stored pointer.

Definition at line 62 of file virtqueue.

Referenced by L4virtio::Svr::Driver_mem_list_t< No_custom_data >::load_desc(), L4virtio::Svr::Driver_mem_list_t< No_custom_data >::load_desc(), L4virtio::Svr::Driver_mem_list_t< No_custom_data >::load_desc(), and L4virtio::Svr::Driver_mem_region_t< Mem_region_info >::local().

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is_valid()

template<typename T>

bool L4virtio::Ptr< T >::is_valid ( ) const

inline

Returns

true if the stored pointer is valid (not NULL).

Definition at line 65 of file virtqueue.

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

• l4/l4virtio/virtqueue