Template for creating a Hash::Implementation from a 32-bit hash function. More...

#include "hash-function.h"

Inheritance diagram for ns3::Hash::Function::Hash32:

Collaboration diagram for ns3::Hash::Function::Hash32:

Public Member Functions
	Hash32 (Hash32Function_ptr hp)
	Constructor from a 32-bit hash function pointer.

void	clear () override
	Restore initial state.

uint32_t	GetHash32 (const char *buffer, const std::size_t size) override
	Compute 32-bit hash of a byte buffer.

Public Member Functions inherited from ns3::Hash::Implementation
	Implementation ()
	Constructor.

virtual	~Implementation ()
	Destructor.

virtual void	clear ()=0
	Restore initial state.

virtual uint32_t	GetHash32 (const char *buffer, const std::size_t size)=0
	Compute 32-bit hash of a byte buffer.

virtual uint64_t	GetHash64 (const char *buffer, const std::size_t size)
	Compute 64-bit hash of a byte buffer.

Public Member Functions inherited from ns3::SimpleRefCount< Implementation >
	SimpleRefCount ()
	Default constructor.

	SimpleRefCount (const SimpleRefCount &o)
	Copy constructor.

uint32_t	GetReferenceCount () const
	Get the reference count of the object.

SimpleRefCount &	operator= (const SimpleRefCount &o)
	Assignment operator.

void	Ref () const
	Increment the reference count.

void	Unref () const
	Decrement the reference count.

Private Attributes
Hash32Function_ptr	m_fp
	The hash function.

Detailed Description

Template for creating a Hash::Implementation from a 32-bit hash function.

Definition at line 136 of file hash-function.h.

Constructor & Destructor Documentation

◆ Hash32()

ns3::Hash::Function::Hash32::Hash32 ( Hash32Function_ptr hp )

inline

Constructor from a 32-bit hash function pointer.

Parameters

[in] hp Function pointer to a 32-bit hash function.

Definition at line 144 of file hash-function.h.

Member Function Documentation

◆ clear()

void ns3::Hash::Function::Hash32::clear ( )

inlineoverridevirtual

Restore initial state.

Implements ns3::Hash::Implementation.

Definition at line 154 of file hash-function.h.

◆ GetHash32()

uint32_t ns3::Hash::Function::Hash32::GetHash32	(	const char *	buffer,
		const std::size_t	size
	)

inlineoverridevirtual

Compute 32-bit hash of a byte buffer.

Call clear() between calls to GetHash32() to reset the internal state and hash each buffer separately.

If you don't call clear() between calls to GetHash32, you can hash successive buffers. The final return value will be the cumulative hash across all calls.

Parameters

[in]	buffer	Pointer to the beginning of the buffer.
[in]	size	Length of the buffer, in bytes.

Returns: 32-bit hash of the buffer.

Implements ns3::Hash::Implementation.

Definition at line 149 of file hash-function.h.

References m_fp.

Member Data Documentation

◆ m_fp

Hash32Function_ptr ns3::Hash::Function::Hash32::m_fp

private

The hash function.

Definition at line 159 of file hash-function.h.

Referenced by GetHash32().

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

src/core/model/hash-function.h

Public Member Functions

Private Attributes