示例#1
0
// GetStateObject returns the state object of the given account or nil if the
// account does not exist
func (self *LightState) GetStateObject(ctx context.Context, addr common.Address) (stateObject *StateObject, err error) {
	stateObject = self.stateObjects[addr.Str()]
	if stateObject != nil {
		if stateObject.deleted {
			stateObject = nil
		}
		return stateObject, nil
	}
	data, err := self.trie.Get(ctx, addr[:])
	if err != nil {
		return nil, err
	}
	if len(data) == 0 {
		return nil, nil
	}

	stateObject, err = DecodeObject(ctx, addr, self.odr, []byte(data))
	if err != nil {
		return nil, err
	}

	self.SetStateObject(stateObject)

	return stateObject, nil
}
示例#2
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// SetNonce sets the new canonical nonce for the managed state
func (ms *ManagedState) SetNonce(addr common.Address, nonce uint64) {
	ms.mu.Lock()
	defer ms.mu.Unlock()

	so := ms.GetOrNewStateObject(addr)
	so.SetNonce(nonce)

	ms.accounts[addr.Str()] = newAccount(so)
}
示例#3
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// NewStateObject create a state object whether it exist in the trie or not
func (self *StateDB) newStateObject(addr common.Address) *StateObject {
	if glog.V(logger.Core) {
		glog.Infof("(+) %x\n", addr)
	}

	stateObject := NewStateObject(addr, self.db)
	self.stateObjects[addr.Str()] = stateObject

	return stateObject
}
示例#4
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// newStateObject creates a state object whether it exists in the state or not
func (self *LightState) newStateObject(addr common.Address) *StateObject {
	if glog.V(logger.Core) {
		glog.Infof("(+) %x\n", addr)
	}

	stateObject := NewStateObject(addr, self.odr)
	stateObject.SetNonce(StartingNonce)
	self.stateObjects[addr.Str()] = stateObject

	return stateObject
}
示例#5
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// populate the managed state
func (ms *ManagedState) getAccount(addr common.Address) *account {
	straddr := addr.Str()
	if account, ok := ms.accounts[straddr]; !ok {
		so := ms.GetOrNewStateObject(addr)
		ms.accounts[straddr] = newAccount(so)
	} else {
		// Always make sure the state account nonce isn't actually higher
		// than the tracked one.
		so := ms.StateDB.GetStateObject(addr)
		if so != nil && uint64(len(account.nonces))+account.nstart < so.nonce {
			ms.accounts[straddr] = newAccount(so)
		}

	}

	return ms.accounts[straddr]
}
示例#6
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// Retrieve a state object given my the address. Nil if not found
func (self *StateDB) GetStateObject(addr common.Address) (stateObject *StateObject) {
	stateObject = self.stateObjects[addr.Str()]
	if stateObject != nil {
		if stateObject.deleted {
			stateObject = nil
		}

		return stateObject
	}

	data := self.trie.Get(addr[:])
	if len(data) == 0 {
		return nil
	}

	stateObject = NewStateObjectFromBytes(addr, []byte(data), self.db)
	self.SetStateObject(stateObject)

	return stateObject
}
示例#7
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func (ms *ManagedState) hasAccount(addr common.Address) bool {
	_, ok := ms.accounts[addr.Str()]
	return ok
}