dart::MemoryRegion Class Reference

#include <memory_region.h>

Inheritance diagram for dart::MemoryRegion:

Public Member Functions
	MemoryRegion ()
	MemoryRegion (void *pointer, uword size)
	MemoryRegion (const MemoryRegion &other)
MemoryRegion &	operator= (const MemoryRegion &other)
void *	pointer () const
uword	size () const
void	set_size (uword new_size)
uword	start () const
uword	end () const
template<typename T >
T	Load (uword offset) const
template<typename T >
void	Store (uword offset, T value) const
template<typename T >
void	StoreUnaligned (uword offset, T value) const
template<typename T >
T *	PointerTo (uword offset) const
bool	Contains (uword address) const
void	CopyFrom (uword offset, const MemoryRegion &from) const
void	Subregion (const MemoryRegion &from, uword offset, uword size)
void	Extend (const MemoryRegion &region, uword extra)
Public Member Functions inherited from dart::ValueObject
	ValueObject ()
	~ValueObject ()

Detailed Description

Definition at line 18 of file memory_region.h.

Constructor & Destructor Documentation

MemoryRegion() [1/3]

dart::MemoryRegion::MemoryRegion ( )

inline

Definition at line 20 of file memory_region.h.

: pointer_(nullptr), size_(0) {}

MemoryRegion() [2/3]

dart::MemoryRegion::MemoryRegion ( void *  pointer, uword  size  )

inline

Definition at line 21 of file memory_region.h.

: pointer_(pointer), size_(size) {}

MemoryRegion() [3/3]

dart::MemoryRegion::MemoryRegion ( const MemoryRegion &  other )

inline

Definition at line 22 of file memory_region.h.

: ValueObject() { *this = other; }

Member Function Documentation

Contains()

bool dart::MemoryRegion::Contains ( uword  address ) const

inline

Definition at line 56 of file memory_region.h.

                                     {
    return (address >= start()) && (address < end());
  }

CopyFrom()

void dart::MemoryRegion::CopyFrom	(	uword	offset,
		const MemoryRegion &	from
	)		const

Definition at line 9 of file memory_region.cc.

                                                                        {
  ASSERT(from.pointer() != nullptr && from.size() > 0);
  ASSERT(this->size() >= from.size());
  ASSERT(offset <= this->size() - from.size());
  memmove(reinterpret_cast<void*>(start() + offset), from.pointer(),
          from.size());
}

end()

uword dart::MemoryRegion::end ( ) const

inline

Definition at line 34 of file memory_region.h.

{ return start() + size_; }

Extend()

void dart::MemoryRegion::Extend ( const MemoryRegion &  region, uword  extra  )

inline

Definition at line 71 of file memory_region.h.

                                                       {
    pointer_ = region.pointer();
    size_ = (region.size() + extra);
  }

Load()

template<typename T >

T dart::MemoryRegion::Load ( uword  offset ) const

inline

Definition at line 37 of file memory_region.h.

                             {
    return *ComputeInternalPointer<T>(offset);
  }

operator=()

MemoryRegion & dart::MemoryRegion::operator= ( const MemoryRegion &  other )

inline

Definition at line 23 of file memory_region.h.

                                                     {
    pointer_ = other.pointer_;
    size_ = other.size_;
    return *this;
  }

pointer()

void * dart::MemoryRegion::pointer ( ) const

inline

Definition at line 29 of file memory_region.h.

{ return pointer_; }

PointerTo()

template<typename T >

T * dart::MemoryRegion::PointerTo ( uword  offset ) const

inline

Definition at line 52 of file memory_region.h.

                                   {
    return ComputeInternalPointer<T>(offset);
  }

set_size()

void dart::MemoryRegion::set_size ( uword  new_size )

inline

Definition at line 31 of file memory_region.h.

{ size_ = new_size; }

size()

uword dart::MemoryRegion::size ( ) const

inline

Definition at line 30 of file memory_region.h.

{ return size_; }

start()

uword dart::MemoryRegion::start ( ) const

inline

Definition at line 33 of file memory_region.h.

{ return reinterpret_cast<uword>(pointer_); }

Store()

template<typename T >

void dart::MemoryRegion::Store ( uword  offset, T  value  ) const

inline

Definition at line 42 of file memory_region.h.

                                          {
    *ComputeInternalPointer<T>(offset) = value;
  }

StoreUnaligned()

template<typename T >

void dart::MemoryRegion::StoreUnaligned ( uword  offset, T  value  ) const

inline

Definition at line 47 of file memory_region.h.

                                                   {
    dart::StoreUnaligned(ComputeInternalPointer<T>(offset), value);
  }

Subregion()

void dart::MemoryRegion::Subregion ( const MemoryRegion &  from, uword  offset, uword  size  )

inline

Definition at line 63 of file memory_region.h.

                                                                     {
    ASSERT(from.size() >= size);
    ASSERT(offset <= (from.size() - size));
    pointer_ = reinterpret_cast<void*>(from.start() + offset);
    size_ = size;
  }

---

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

• third_party/dart-lang/sdk/runtime/vm/memory_region.h
• third_party/dart-lang/sdk/runtime/vm/memory_region.cc