Externality interface for the Virtual Machine providing access to world state. More...

#include <ExtVM.h>

Inheritance diagram for dev::eth::ExtVM:

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Public Member Functions
	ExtVM (State &_s, EnvInfo const &_envInfo, SealEngineFace const &_sealEngine, Address _myAddress, Address _caller, Address _origin, u256 _value, u256 _gasPrice, bytesConstRef _data, bytesConstRef _code, h256 const &_codeHash, unsigned _depth=0)
	Full constructor. More...

virtual u256	store (u256 _n) overridefinal
	Read storage location. More...

virtual void	setStore (u256 _n, u256 _v) overridefinal
	Write a value in storage. More...

virtual bytes const &	codeAt (Address _a) overridefinal
	Read address's code. More...

virtual size_t	codeSizeAt (Address _a) overridefinal

virtual h160	create (u256 _endowment, u256 &io_gas, bytesConstRef _code, OnOpFunc const &_onOp={}) overridefinal
	Create a new contract. More...

virtual boost::optional< owning_bytes_ref >	call (CallParameters &_params) overridefinal
	Create a new message call. Leave _myAddressOverride as the default to use the present address as caller. More...

virtual u256	balance (Address _a) overridefinal
	Read address's balance. More...

virtual bool	exists (Address _a) overridefinal
	Does the account exist? More...

virtual void	suicide (Address _a) overridefinal
	Suicide the associated contract to the given address. More...

virtual EVMSchedule const &	evmSchedule () const overridefinal
	Return the EVM gas-price schedule for this execution context. More...

State const &	state () const

Public Member Functions inherited from dev::eth::ExtVMFace
	ExtVMFace ()=default
	Null constructor. More...

	ExtVMFace (EnvInfo const &_envInfo, Address _myAddress, Address _caller, Address _origin, u256 _value, u256 _gasPrice, bytesConstRef _data, bytes _code, h256 const &_codeHash, unsigned _depth)
	Full constructor. More...

virtual	~ExtVMFace ()=default

	ExtVMFace (ExtVMFace const &)=delete

ExtVMFace &	operator= (ExtVMFace const &)=delete

virtual void	log (h256s &&_topics, bytesConstRef _data)
	Revert any changes made (by any of the other calls). More...

h256	blockHash (u256 _number)
	Hash of a block if within the last 256 blocks, or h256() otherwise. More...

EnvInfo const &	envInfo () const
	Get the execution environment information. More...

Private Attributes
State &	m_s
	A reference to the base state. More...

SealEngineFace const &	m_sealEngine

Additional Inherited Members
Public Attributes inherited from dev::eth::ExtVMFace
Address	myAddress
	Address associated with executing code (a contract, or contract-to-be). More...

Address	caller
	Address which sent the message (either equal to origin or a contract). More...

Address	origin
	Original transactor. More...

u256	value
	Value (in Wei) that was passed to this address. More...

u256	gasPrice
	Price of gas (that we already paid). More...

bytesConstRef	data
	Current input data. More...

bytes	code
	Current code that is executing. More...

h256	codeHash
	SHA3 hash of the executing code. More...

SubState	sub
	Sub-band VM state (suicides, refund counter, logs). More...

unsigned	depth = 0
	Depth of the present call. More...

Detailed Description

Externality interface for the Virtual Machine providing access to world state.

Definition at line 42 of file ExtVM.h.

Constructor & Destructor Documentation

dev::eth::ExtVM::ExtVM	(	State &	_s,
		EnvInfo const &	_envInfo,
		SealEngineFace const &	_sealEngine,
		Address	_myAddress,
		Address	_caller,
		Address	_origin,
		u256	_value,
		u256	_gasPrice,
		bytesConstRef	_data,
		bytesConstRef	_code,
		h256 const &	_codeHash,
		unsigned	_depth = `0`
	)

inline

Full constructor.

Definition at line 46 of file ExtVM.h.

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Member Function Documentation

virtual u256 dev::eth::ExtVM::balance ( Address _a )

inlinefinaloverridevirtual

Read address's balance.

Reimplemented from dev::eth::ExtVMFace.

Definition at line 74 of file ExtVM.h.

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boost::optional< owning_bytes_ref > ExtVM::call ( CallParameters & _params )

finaloverridevirtual

Create a new message call. Leave _myAddressOverride as the default to use the present address as caller.

Implements dev::eth::ExtVMFace.

Definition at line 95 of file ExtVM.cpp.

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virtual bytes const& dev::eth::ExtVM::codeAt ( Address _a )

inlinefinaloverridevirtual

Read address's code.

Reimplemented from dev::eth::ExtVMFace.

Definition at line 62 of file ExtVM.h.

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size_t ExtVM::codeSizeAt ( dev::Address _a )

finaloverridevirtual

Returns: the size of the code in bytes at the given address.

Reimplemented from dev::eth::ExtVMFace.

Definition at line 111 of file ExtVM.cpp.

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h160 ExtVM::create	(	u256	_endowment,
		u256 &	io_gas,
		bytesConstRef	_code,
		OnOpFunc const &	_onOp = `{}`
	)

finaloverridevirtual

Create a new contract.

Reimplemented from dev::eth::ExtVMFace.

Definition at line 121 of file ExtVM.cpp.

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virtual EVMSchedule const& dev::eth::ExtVM::evmSchedule ( ) const

inlinefinaloverridevirtual

Return the EVM gas-price schedule for this execution context.

Reimplemented from dev::eth::ExtVMFace.

Definition at line 89 of file ExtVM.h.

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virtual bool dev::eth::ExtVM::exists ( Address _a )

inlinefinaloverridevirtual

Does the account exist?

Reimplemented from dev::eth::ExtVMFace.

Definition at line 77 of file ExtVM.h.

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void ExtVM::setStore	(	u256	_n,
		u256	_v
	)

finaloverridevirtual

Write a value in storage.

Reimplemented from dev::eth::ExtVMFace.

Definition at line 116 of file ExtVM.cpp.

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State const& dev::eth::ExtVM::state ( ) const

inline

Definition at line 91 of file ExtVM.h.

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virtual u256 dev::eth::ExtVM::store ( u256 _n )

inlinefinaloverridevirtual

Read storage location.

Reimplemented from dev::eth::ExtVMFace.

Definition at line 56 of file ExtVM.h.

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void ExtVM::suicide ( Address _a )

finaloverridevirtual

Suicide the associated contract to the given address.

Reimplemented from dev::eth::ExtVMFace.

Definition at line 133 of file ExtVM.cpp.

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Member Data Documentation

State& dev::eth::ExtVM::m_s

private

A reference to the base state.

Definition at line 94 of file ExtVM.h.

SealEngineFace const& dev::eth::ExtVM::m_sealEngine

private

Definition at line 95 of file ExtVM.h.

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

src/cpp-ethereum/libethereum/ExtVM.h
src/cpp-ethereum/libethereum/ExtVM.cpp

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation