def do_test_vm(filename, testname=None, limit=99999999):
if testname is None:
for testname in vm_tests_fixtures()[filename].keys()[:limit]:
do_test_vm(filename, testname)
return
if testname in faulty:
logger.debug('skipping test:%r in %r' % (testname, filename))
return
logger.debug('running test:%r in %r' % (testname, filename))
params = vm_tests_fixtures()[filename][testname]
pre = params['pre']
exek = params['transaction']
env = params['env']
post = params['post']
check_testdata(env.keys(), [
'currentGasLimit', 'currentTimestamp', 'previousHash',
'currentCoinbase', 'currentDifficulty', 'currentNumber'
])
# setup env
blk = blocks.Block(new_db(),
prevhash=env['previousHash'].decode('hex'),
number=int(env['currentNumber']),
coinbase=env['currentCoinbase'],
difficulty=int(env['currentDifficulty']),
gas_limit=int(env['currentGasLimit']),
timestamp=int(env['currentTimestamp']))
# code FIXME WHAT TO DO WITH THIS CODE???
# if isinstance(env['code'], str):
# continue
# else:
# addr = 0 # FIXME
# blk.set_code(addr, ''.join(map(chr, env['code'])))
# setup state
for address, h in pre.items():
check_testdata(h.keys(), ['code', 'nonce', 'balance', 'storage'])
blk.set_nonce(address, int(h['nonce']))
blk.set_balance(address, int(h['balance']))
blk.set_code(address, h['code'][2:].decode('hex'))
for k, v in h['storage'].iteritems():
blk.set_storage_data(address,
u.big_endian_to_int(k[2:].decode('hex')),
u.big_endian_to_int(v[2:].decode('hex')))
# execute transactions
tx = transactions.Transaction(nonce=int(exek['nonce'] or "0"),
gasprice=int(exek['gasPrice'] or "0"),
startgas=int(exek['gasLimit'] or "0"),
to=exek['to'],
value=int(exek['value'] or "0"),
data=exek['data'][2:].decode('hex')).sign(
exek['secretKey'])
orig_apply_msg = pb.apply_msg
def apply_msg_wrapper(ext, msg, code):
def blkhash(n):
if n >= blk.number or n < blk.number - 256:
return ''
else:
return u.sha3(str(n))
ext.block_hash = blkhash
return orig_apply_msg(ext, msg, code)
pb.apply_msg = apply_msg_wrapper
try:
success, output = pb.apply_transaction(blk, tx)
blk.commit_state()
except pb.InvalidTransaction:
output = ''
logger.debug('Transaction not valid')
pass
if tx.to == '':
output = blk.get_code(output)
pb.apply_msg = orig_apply_msg
assert '0x' + output.encode('hex') == params['out']
# check state
for address, data in post.items():
state = blk.account_to_dict(address, for_vmtest=True)
state.pop('storage_root', None)
assert state == data
def run_test_vm(params):
pre = params['pre']
exek = params['exec']
callcreates = params.get('callcreates', [])
env = params['env']
post = params.get('post', {})
check_testdata(env.keys(), [
'currentGasLimit', 'currentTimestamp', 'previousHash',
'currentCoinbase', 'currentDifficulty', 'currentNumber'
])
# setup env
db = new_db()
blk = blocks.Block(db,
prevhash=env['previousHash'].decode('hex'),
number=int(env['currentNumber']),
coinbase=env['currentCoinbase'],
difficulty=int(env['currentDifficulty']),
gas_limit=int(env['currentGasLimit']),
timestamp=int(env['currentTimestamp']))
# code FIXME WHAT TO DO WITH THIS CODE???
# if isinstance(env['code'], str):
# continue
# else:
# addr = 0 # FIXME
# blk.set_code(addr, ''.join(map(chr, env['code'])))
# setup state
for address, h in pre.items():
check_testdata(h.keys(), ['code', 'nonce', 'balance', 'storage'])
blk.set_nonce(address, int(h['nonce']))
blk.set_balance(address, int(h['balance']))
blk.set_code(address, h['code'][2:].decode('hex'))
for k, v in h['storage']:
blk.set_storage_data(address, u.big_endian_to_int(k.decode('hex')),
u.big_endian_to_int(v.decode('hex')))
# execute transactions
sender = exek['caller'] # a party that originates a call
recvaddr = exek['address']
tx = transactions.Transaction(nonce=blk._get_acct_item(
exek['caller'], 'nonce'),
gasprice=int(exek['gasPrice']),
startgas=int(exek['gas']),
to=recvaddr,
value=int(exek['value']),
data=exek['data'][2:].decode('hex'))
tx.sender = sender
# capture apply_message calls
apply_message_calls = []
orig_apply_msg = pb.apply_msg
def apply_msg_wrapper(_ext, msg, code, toplevel=False):
hexdata = msg.data.extract_all().encode('hex')
apply_message_calls.append(
dict(gasLimit=msg.gas,
value=msg.value,
destination=msg.to,
data=hexdata))
if not toplevel:
pb.apply_msg = orig_apply_msg
result, gas_rem, data = orig_apply_msg(_ext, msg, code)
if not toplevel:
pb.apply_msg = apply_msg_wrapper
return result, gas_rem, data
pb.apply_msg = apply_msg_wrapper
ext = pb.VMExt(blk, tx)
msg = vm.Message(tx.sender, tx.to, tx.value, tx.startgas,
vm.CallData([ord(x) for x in tx.data]))
success, gas_remained, output = \
vm.vm_execute(ext, msg, exek['code'][2:].decode('hex'))
pb.apply_msg = orig_apply_msg
blk.commit_state()
"""
generally expected that the test implementer will read env, exec and pre
then check their results against gas, logs, out, post and callcreates.
If an exception is expected, then latter sections are absent in the test.
Since the reverting of the state is not part of the VM tests.
"""
if not success:
return
for k in ['gas', 'logs', 'out', 'post', 'callcreates']:
assert k in params
assert len(callcreates) == len(apply_message_calls)
# check against callcreates
for i, callcreate in enumerate(callcreates):
amc = apply_message_calls[i]
assert callcreate['data'] == '0x' + amc['data']
assert callcreate['gasLimit'] == str(amc['gasLimit'])
assert callcreate['value'] == str(amc['value'])
assert callcreate['destination'] == amc['destination']
if 'out' in params:
assert '0x' + ''.join(map(chr, output)).encode('hex') == params['out']
if 'gas' in params:
assert str(gas_remained) == params['gas']
if 'logs' in params:
"""
The logs sections is a mapping between the blooms and their corresponding logentries.
Each logentry has the format:
address: The address of the logentry.
data: The data of the logentry.
topics: The topics of the logentry, given as an array of values.
"""
test_logs = params['logs']
vm_logs = []
for log in tx.logs:
vm_logs.append({
"bloom":
bloom.b64(bloom.bloom_from_list(
log.bloomables())).encode('hex'),
"address":
log.address,
"data":
'0x' + log.data.encode('hex'),
"topics": [
u.zpad(u.int_to_big_endian(t), 32).encode('hex')
for t in log.topics
]
})
assert len(vm_logs) == len(test_logs)
assert vm_logs == test_logs
# check state
for address, data in post.items():
state = blk.account_to_dict(address, for_vmtest=True)
state.pop('storage_root',
None) # attribute not present in vmtest fixtures
assert data == state
db.delete_db()
def do_test_vm(name):
logger.debug('running test:%r', name)
params = vm_tests_fixtures()[name]
pre = params['pre']
exek = params['exec']
callcreates = params['callcreates']
env = params['env']
post = params['post']
check_testdata(env.keys(), ['currentGasLimit', 'currentTimestamp',
'previousHash', 'currentCoinbase',
'currentDifficulty', 'currentNumber'])
# setup env
blk = blocks.Block(
prevhash=env['previousHash'].decode('hex'),
number=int(env['currentNumber']),
coinbase=env['currentCoinbase'],
difficulty=int(env['currentDifficulty']),
gas_limit=int(env['currentGasLimit']),
timestamp=int(env['currentTimestamp']))
# code FIXME WHAT TO DO WITH THIS CODE???
# if isinstance(env['code'], str):
# continue
# else:
# addr = 0 # FIXME
# blk.set_code(addr, ''.join(map(chr, env['code'])))
# setup state
for address, h in pre.items():
check_testdata(h.keys(), ['code', 'nonce', 'balance', 'storage'])
blk.set_nonce(address, int(h['nonce']))
blk.set_balance(address, int(h['balance']))
blk.set_code(address, h['code'][2:].decode('hex'))
for k, v in h['storage']:
blk.set_storage_data(address,
u.big_endian_to_int(k.decode('hex')),
u.big_endian_to_int(v.decode('hex')))
logger.debug('PRE Balance: %r: %r', address, h['balance'])
# execute transactions
pb.enable_debug()
sender = exek['caller'] # a party that originates a call
recvaddr = exek['address']
tx = transactions.Transaction(
nonce=blk._get_acct_item(exek['caller'], 'nonce'),
gasprice=int(exek['gasPrice']),
startgas=int(exek['gas']),
to=recvaddr,
value=int(exek['value']),
data=exek['data'][2:].decode('hex'))
tx.sender = sender
logger.debug('TX %r > %r v:%r gas:%s @price:%s',
sender, recvaddr, tx.value, tx.startgas, tx.gasprice)
# capture apply_message calls
apply_message_calls = []
orig_apply_msg = pb.apply_msg
def apply_msg_wrapper(_block, _tx, msg, code):
pb.enable_debug()
apply_message_calls.append(dict(gasLimit=msg.gas, value=msg.value,
destination=msg.to,
data=msg.data.encode('hex')))
result, gas_rem, data = orig_apply_msg(_block, _tx, msg, code)
pb.disable_debug()
return result, gas_rem, data
pb.apply_msg = apply_msg_wrapper
msg = pb.Message(tx.sender, tx.to, tx.value, tx.startgas, tx.data)
blk.delta_balance(exek['caller'], tx.value)
blk.delta_balance(exek['address'], -tx.value)
success, gas_remained, output = \
pb.apply_msg(blk, tx, msg, exek['code'][2:].decode('hex'))
pb.apply_msg = orig_apply_msg
apply_message_calls.pop(0)
blk.commit_state()
assert success
assert len(callcreates) == len(apply_message_calls)
# check against callcreates
for i, callcreate in enumerate(callcreates):
amc = apply_message_calls[i]
assert callcreate['data'] == '0x'+amc['data'].encode('hex')
assert callcreate['gasLimit'] == str(amc['gasLimit'])
assert callcreate['value'] == str(amc['value'])
assert callcreate['destination'] == amc['destination']
assert '0x'+''.join(map(chr, output)).encode('hex') == params['out']
assert str(gas_remained) == params['gas']
# check state
for address, data in post.items():
state = blk.account_to_dict(address)
state.pop('storage_root', None) # attribute not present in vmtest fixtures
assert data == state
def do_test_vm(name):
logger.debug('running test:%r', name)
for testname in vm_tests_fixtures(name).keys():
logger.debug('running test:%r', testname)
params = vm_tests_fixtures(name)[testname]
pre = params['pre']
exek = params['exec']
callcreates = params['callcreates']
env = params['env']
post = params['post']
check_testdata(env.keys(), [
'currentGasLimit', 'currentTimestamp', 'previousHash',
'currentCoinbase', 'currentDifficulty', 'currentNumber'
])
# setup env
blk = blocks.Block(prevhash=env['previousHash'].decode('hex'),
number=int(env['currentNumber']),
coinbase=env['currentCoinbase'],
difficulty=int(env['currentDifficulty']),
gas_limit=int(env['currentGasLimit']),
timestamp=int(env['currentTimestamp']))
# code FIXME WHAT TO DO WITH THIS CODE???
# if isinstance(env['code'], str):
# continue
# else:
# addr = 0 # FIXME
# blk.set_code(addr, ''.join(map(chr, env['code'])))
# setup state
for address, h in pre.items():
check_testdata(h.keys(), ['code', 'nonce', 'balance', 'storage'])
blk.set_nonce(address, int(h['nonce']))
blk.set_balance(address, int(h['balance']))
blk.set_code(address, h['code'][2:].decode('hex'))
for k, v in h['storage']:
blk.set_storage_data(address,
u.big_endian_to_int(k.decode('hex')),
u.big_endian_to_int(v.decode('hex')))
pblogger.log('PRE Balance', address=address, balance=h['balance'])
# execute transactions
sender = exek['caller'] # a party that originates a call
recvaddr = exek['address']
tx = transactions.Transaction(nonce=blk._get_acct_item(
exek['caller'], 'nonce'),
gasprice=int(exek['gasPrice']),
startgas=int(exek['gas']),
to=recvaddr,
value=int(exek['value']),
data=exek['data'][2:].decode('hex'))
tx.sender = sender
pblogger.log('TX',
tx=tx.hex_hash(),
sender=sender,
to=recvaddr,
value=tx.value,
startgas=tx.startgas,
gasprice=tx.gasprice)
# capture apply_message calls
apply_message_calls = []
orig_apply_msg = pb.apply_msg
def apply_msg_wrapper(_block, _tx, msg, code):
apply_message_calls.append(
dict(gasLimit=msg.gas,
value=msg.value,
destination=msg.to,
data=msg.data.encode('hex')))
result, gas_rem, data = orig_apply_msg(_block, _tx, msg, code)
return result, gas_rem, data
pb.apply_msg = apply_msg_wrapper
msg = pb.Message(tx.sender, tx.to, tx.value, tx.startgas, tx.data)
blk.delta_balance(exek['caller'], tx.value)
blk.delta_balance(exek['address'], -tx.value)
try:
success, gas_remained, output = \
pb.apply_msg(blk, tx, msg, exek['code'][2:].decode('hex'))
except MemoryError:
print "A memory error exception has been thrown and catched!\n"
pb.apply_msg = orig_apply_msg
apply_message_calls.pop(0)
blk.commit_state()
assert success
assert len(callcreates) == len(apply_message_calls)
# check against callcreates
for i, callcreate in enumerate(callcreates):
amc = apply_message_calls[i]
assert callcreate['data'] == '0x' + amc['data'].encode('hex')
assert callcreate['gasLimit'] == str(amc['gasLimit'])
assert callcreate['value'] == str(amc['value'])
assert callcreate['destination'] == amc['destination']
assert '0x' + ''.join(map(chr, output)).encode('hex') == params['out']
if gas_remained < 0: gas_remained = 0
assert str(gas_remained) == params['gas']
# check state
for address, data in post.items():
state = blk.account_to_dict(address)
state.pop('storage_root',
None) # attribute not present in vmtest fixtures
# check hex values in same format
def newFormat(x):
if x == '0x':
return '0x00'
elif x[:2] == '0x':
return "0x%0.2X" % int(x, 0)
else:
return x
data['storage'] = {
newFormat(k): newFormat(v[0])
for k, v in data['storage'].items()
if int(newFormat(v[0]), 0) != 0
}
state['storage'] = {
newFormat(k): newFormat(v)
for k, v in state['storage'].items()
}
assert data == state
def prepare_state_test(params):
pre = params['pre']
exek = params['transaction']
env = params['env']
# setup env
blk = blocks.Block(db,
prevhash=env['previousHash'].decode('hex'),
number=int(env['currentNumber']),
coinbase=env['currentCoinbase'],
difficulty=int(env['currentDifficulty']),
gas_limit=int(env['currentGasLimit']),
timestamp=int(env['currentTimestamp']))
for address, h in pre.items():
blk.set_nonce(address, int(h['nonce']))
blk.set_balance(address, int(h['balance']))
blk.set_code(address, h['code'][2:].decode('hex'))
for k, v in h['storage'].iteritems():
blk.set_storage_data(address,
u.big_endian_to_int(k[2:].decode('hex')),
u.big_endian_to_int(v[2:].decode('hex')))
# execute transactions
tx = transactions.Transaction(nonce=int(exek['nonce'] or "0"),
gasprice=int(exek['gasPrice'] or "0"),
startgas=int(exek['gasLimit'] or "0"),
to=exek['to'],
value=int(exek['value'] or "0"),
data=exek['data'][2:].decode('hex')).sign(
exek['secretKey'])
orig_apply_msg = pb.apply_msg
def apply_msg_wrapper(ext, msg, code):
def blkhash(n):
if n >= blk.number or n < blk.number - 256:
return ''
else:
return u.sha3(str(n))
ext.block_hash = blkhash
return orig_apply_msg(ext, msg, code)
pb.apply_msg = apply_msg_wrapper
blk2 = blocks.Block.deserialize(db, blk.serialize())
t1 = time.time()
try:
pb.apply_transaction(blk, tx)
except:
print 'exception'
pass
t2 = time.time()
recorder = LogRecorder()
try:
pb.apply_transaction(blk2, tx)
except:
print 'exception'
pass
trace = recorder.pop_records()
ops = [x['op'] for x in trace if x['event'] == 'vm']
opdict = {}
for op in ops:
opdict[op] = opdict.get(op, 0) + 1
return {"ops": opdict, "time": t2 - t1}
def profile_vm_test(params):
pre = params['pre']
exek = params['exec']
env = params['env']
# setup env
blk = blocks.Block(db,
prevhash=env['previousHash'].decode('hex'),
number=int(env['currentNumber']),
coinbase=env['currentCoinbase'],
difficulty=int(env['currentDifficulty']),
gas_limit=int(env['currentGasLimit']),
timestamp=int(env['currentTimestamp']))
# setup state
for address, h in pre.items():
blk.set_nonce(address, int(h['nonce']))
blk.set_balance(address, int(h['balance']))
blk.set_code(address, h['code'][2:].decode('hex'))
for k, v in h['storage'].iteritems():
blk.set_storage_data(address,
u.big_endian_to_int(k[2:].decode('hex')),
u.big_endian_to_int(v[2:].decode('hex')))
# execute transactions
sender = exek['caller'] # a party that originates a call
recvaddr = exek['address']
tx = transactions.Transaction(nonce=blk._get_acct_item(
exek['caller'], 'nonce'),
gasprice=int(exek['gasPrice']),
startgas=int(exek['gas']),
to=recvaddr,
value=int(exek['value']),
data=exek['data'][2:].decode('hex'))
tx.sender = sender
ext = pb.VMExt(blk, tx)
def blkhash(n):
if n >= ext.block_number or n < ext.block_number - 256:
return ''
else:
return u.sha3(str(n))
ext.block_hash = blkhash
msg = vm.Message(tx.sender, tx.to, tx.value, tx.startgas,
vm.CallData([ord(x) for x in tx.data]))
blk2 = blocks.Block.deserialize(db, blk.serialize())
t1 = time.time()
success, gas_remained, output = \
vm.vm_execute(ext, msg, exek['code'][2:].decode('hex'))
blk.commit_state()
t2 = time.time()
recorder = LogRecorder()
ext = pb.VMExt(blk2, tx)
ext.block_hash = blkhash
success, gas_remained, output = \
vm.vm_execute(ext, msg, exek['code'][2:].decode('hex'))
trace = recorder.pop_records()
ops = [x['op'] for x in trace if x['event'] == 'vm']
opdict = {}
for op in ops:
opdict[op] = opdict.get(op, 0) + 1
return {"ops": opdict, "time": t2 - t1}
def do_test_vm(name):
tempdir = tempfile.mktemp()
logger.debug('running test:%r', name)
params = vm_tests_fixtures()[name]
# HOTFIFX
# params['pre']['0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6']['balance'] *= 100
pre = params['pre']
execs = params['exec']
callcreates = params['callcreates']
env = params['env']
post = params['post']
check_testdata(env.keys(), [
'code', 'currentGasLimit', 'currentTimestamp', 'previousHash',
'currentCoinbase', 'currentDifficulty', 'currentNumber'
])
# setup env
blk = blocks.Block(prevhash=env['previousHash'].decode('hex'),
number=int(env['currentNumber']),
coinbase=env['currentCoinbase'],
difficulty=int(env['currentDifficulty']),
gas_limit=int(env['currentGasLimit']),
timestamp=env['currentTimestamp'])
# code FIXME WHAT TO DO WITH THIS CODE???
# if isinstance(env['code'], str):
# continue
# else:
# addr = 0 # FIXME
# blk.set_code(addr, ''.join(map(chr, env['code'])))
# setup state
for address, h in pre.items():
check_testdata(h.keys(), ['code', 'nonce', 'balance', 'storage'])
blk.set_balance(address, h['balance'])
logger.debug('PRE Balance: %r: %r', address, h['balance'])
blk._set_acct_item(address, 'nonce', h['nonce'])
blk.set_code(address, ''.join(map(chr, h['code'])))
assert h['storage'] == {
} # FOR NOW test contracts don't seem to persist anything
# execute transactions
for i, exek in enumerate(execs):
sender = exek['address'] # a party that originates a call
recvaddr = exek['caller']
tx = transactions.Transaction(nonce=blk._get_acct_item(
exek['caller'], 'nonce'),
gasprice=int(exek['gasPrice']),
startgas=int(exek['gas']),
to=recvaddr,
value=int(exek['value']),
data=exek['data'])
tx.sender = sender
logger.debug('TX %r > %r v:%r gas:%s @price:%s', sender, recvaddr,
tx.value, tx.startgas, tx.gasprice)
# capture apply_message calls
apply_message_calls = []
orig_apply_msg = processblock.apply_msg
def apply_msg_wrapper(_block, _tx, msg):
result, gas_remained, data = orig_apply_msg(_block, _tx, msg)
apply_message_calls.append(
dict(msg=msg,
result=result,
gas_remained=gas_remained,
data=data))
return result, gas_remained, data
processblock.apply_msg = apply_msg_wrapper
success, output = processblock.apply_transaction(blk, tx)
processblock.apply_msg = orig_apply_msg
assert success
assert len(callcreates) == len(apply_message_calls)
# check against callcreates
for i, callcreate in enumerate(callcreates):
amc = apply_message_calls[i]
assert callcreate['data'] == amc['data']
assert callcreate['gasLimit'] == amc['gas_remained']
assert callcreate['value'] == amc['msg'].value
# data and out not set in tests yet
assert output == params['out']
assert not params['out']
assert not callcreates['data']
# check state
for address, h in post.items():
check_testdata(h.keys(), ['code', 'nonce', 'balance', 'storage'])
logger.debug('POST: %r %r', address, h['balance'])
blk.get_balance(address) == h['balance']
blk._get_acct_item(address, 'nonce') == h['nonce']
map(ord, blk.get_code(recvaddr)) == h['code']
assert storage == {
} # FOR NOW test contracts don't seem to persist anything
def generate_op_tests():
outs = {}
for opcode, (name, inargs, outargs, _) in opcodes.opcodes.items():
_subid = 0
for push_depths in push_params:
for jump_num, code_size in codesize_params:
if name in [
'CALL', 'CREATE', 'CALLCODE', 'LOG', 'POP', 'RETURN',
'STOP', 'INVALID', 'JUMP', 'JUMPI', 'CALLDATALOAD',
'CALLDATACOPY', 'CODECOPY', 'EXTCODECOPY', 'SHA3',
'MLOAD', 'MSTORE', 'MSTORE8', 'SUICIDE'
]:
continue
if name[:3] in ['DUP', 'SWA', 'LOG']:
continue
if name == 'SSTORE':
jump_num /= 10
c = '\x5b'
if name[:4] == 'PUSH':
if push_depths != push_params[0]:
continue
for i in range(code_size):
v = int(name[4:])
w = random.randrange(256**v)
c += chr(0x5f + v) + utils.zpad(utils.encode_int(w), v)
else:
for i in range(code_size):
for _ in range(inargs):
v = push_depths[i * len(push_depths) // code_size]
w = random.randrange(256**v)
c += chr(0x5f + v) + utils.zpad(
utils.encode_int(w), v)
c += chr(opcode)
for _ in range(outargs):
c += chr(0x50)
# PUSH1 0 MLOAD . DUP1 . PUSH1 1 ADD PUSH1 0 MSTORE . PUSH2 <jumps> GT PUSH1 0 JUMPI
c += '\x60\x00\x51' + '\x80' + '\x60\x01\x01\x60\x00\x52' + \
'\x61'+chr(jump_num // 256) + chr(jump_num % 256) + '\x11\x60\x00\x57'
o = {
"callcreates": [],
"env": {
"currentCoinbase":
"2adc25665018aa1fe0e6bc666dac8fc2697ff9ba",
"currentDifficulty":
"256",
"currentGasLimit":
"1000000000",
"currentNumber":
"257",
"currentTimestamp":
"1",
"previousHash":
"5e20a0453cecd065ea59c37ac63e079ee08998b6045136a8ce6635c7912ec0b6"
},
"exec": {
"address": "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
"caller": "0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6",
"code": "0x" + c.encode('hex'),
"data": "0x",
"gas": "1000000",
"gasPrice": "100000000000000",
"origin": "cd1722f3947def4cf144679da39c4c32bdc35681",
"value": "1000000000000000000"
},
"pre": {
"0f572e5295c57f15886f9b263e2f6d2d6c7b5ec6": {
"balance": "1000000000000000000",
"code": "0x",
"nonce": "0",
"storage": {}
}
},
"gas": "1000000",
"logs": [],
"out": "0x"
}
env = o['env']
pre = o['pre']
exek = o['exec']
blk = blocks.Block(db,
prevhash=env['previousHash'].decode('hex'),
number=int(env['currentNumber']),
coinbase=env['currentCoinbase'],
difficulty=int(env['currentDifficulty']),
gas_limit=int(env['currentGasLimit']),
timestamp=int(env['currentTimestamp']))
# setup state
for address, h in pre.items():
blk.set_nonce(address, int(h['nonce']))
blk.set_balance(address, int(h['balance']))
blk.set_code(address, h['code'][2:].decode('hex'))
for k, v in h['storage'].iteritems():
blk.set_storage_data(
address, u.big_endian_to_int(k[2:].decode('hex')),
u.big_endian_to_int(v[2:].decode('hex')))
# execute transactions
sender = exek['caller'] # a party that originates a call
recvaddr = exek['address']
tx = transactions.Transaction(
nonce=blk._get_acct_item(exek['caller'], 'nonce'),
gasprice=int(exek['gasPrice']),
startgas=int(exek['gas']),
to=recvaddr,
value=int(exek['value']),
data=exek['data'][2:].decode('hex'))
tx.sender = sender
ext = pb.VMExt(blk, tx)
def blkhash(n):
if n >= ext.block_number or n < ext.block_number - 256:
return ''
else:
return u.sha3(str(n))
ext.block_hash = blkhash
msg = vm.Message(tx.sender, tx.to, tx.value, tx.startgas,
vm.CallData([ord(x) for x in tx.data]))
success, gas_remained, output = \
vm.vm_execute(ext, msg, exek['code'][2:].decode('hex'))
o['post'] = blk.to_dict(True)['state']
outs[name + str(_subid)] = o
_subid += 1
return outs
