Sirikata::SHA256Context Class Reference

Class to allow creating a shasum from sparse data and other types. More...

#include <Sha256.hpp>

Collaboration diagram for Sirikata::SHA256Context:

List of all members.

Public Member Functions
	SHA256Context ()
	Constructs a new context with no data.
	~SHA256Context ()
	Destroys context only if not already cast to SHA256.
void	update (const void *data, size_t length)
	Insert data.
void	update (const std::string &data)
	Insert std::string data; same as update(data(),length())
void	updateZeros (size_t length)
	Insert zero data -- special case to make SparseData easier to handle.
const SHA256 &	get ()
	Returns a SHA256 sum from the updated data. Cannot update after this.
Private Member Functions
	SHA256Context (const SHA256Context &other)
	Do not allow copying because no function exists to copy SHA256_CTX.
SHA256Context &	operator= (const SHA256Context &other)
Private Attributes
void *	mCtx
	Opaque reference to SHA256_CTX.
SHA256	mRetval
	Stores the result after the context has been freed.

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Detailed Description

Class to allow creating a shasum from sparse data and other types.

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Constructor & Destructor Documentation

Sirikata::SHA256Context::SHA256Context

(

const SHA256Context &

other

)

[private]

Do not allow copying because no function exists to copy SHA256_CTX.

Sirikata::SHA256Context::SHA256Context

(

)

Constructs a new context with no data.

Sirikata::SHA256Context::~SHA256Context

(

)

Destroys context only if not already cast to SHA256.

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Member Function Documentation

const SHA256 & Sirikata::SHA256Context::get

(

)

Returns a SHA256 sum from the updated data. Cannot update after this.

Referenced by Sirikata::Transfer::SparseData::computeFingerprint().

SHA256Context& Sirikata::SHA256Context::operator=

(

const SHA256Context &

other

)

[private]

void Sirikata::SHA256Context::update	(	const void *	data,
		size_t	length
	)

Insert data.

Referenced by Sirikata::Transfer::SparseData::computeFingerprint().

void Sirikata::SHA256Context::update

(

const std::string &

data

)

[inline]

Insert std::string data; same as update(data(),length())

void Sirikata::SHA256Context::updateZeros

(

size_t

length

)

Insert zero data -- special case to make SparseData easier to handle.

Referenced by Sirikata::Transfer::SparseData::computeFingerprint().

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Member Data Documentation

void* Sirikata::SHA256Context::mCtx [private]

Opaque reference to SHA256_CTX.

SHA256 Sirikata::SHA256Context::mRetval [private]

Stores the result after the context has been freed.

Allows return by reference.

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

• libcore/include/sirikata/core/util/Sha256.hpp
• libcore/src/util/Sha256.cpp