cic-stack/apps/cic-eth/cic_eth/enum.py

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# standard imports
import enum
@enum.unique
class StatusBits(enum.IntEnum):
"""Individual bit flags that are combined to define the state and legacy of a queued transaction
"""
QUEUED = 0x01 # transaction should be sent to network
IN_NETWORK = 0x08 # transaction is in network
DEFERRED = 0x10 # an attempt to send the transaction to network has failed
GAS_ISSUES = 0x20 # transaction is pending sender account gas funding
LOCAL_ERROR = 0x100 # errors that originate internally from the component
NODE_ERROR = 0x200 # errors originating in the node (invalid RLP input...)
NETWORK_ERROR = 0x400 # errors that originate from the network (REVERT)
UNKNOWN_ERROR = 0x800 # unclassified errors (the should not occur)
FINAL = 0x1000 # transaction processing has completed
OBSOLETE = 0x2000 # transaction has been replaced by a different transaction with higher fee
MANUAL = 0x8000 # transaction processing has been manually overridden
@enum.unique
class StatusEnum(enum.IntEnum):
"""
- Inactive, not finalized. (<0)
* PENDING: The initial state of a newly added transaction record. No action has been performed on this transaction yet.
* SENDFAIL: The transaction was not received by the node.
* RETRY: The transaction is queued for a new send attempt after previously failing.
* READYSEND: The transaction is queued for its first send attempt
* OBSOLETED: A new transaction with the same nonce and higher gas has been sent to network.
* WAITFORGAS: The transaction is on hold pending gas funding.
- Active state: (==0)
* SENT: The transaction has been sent to the mempool.
- Inactive, finalized. (>0)
* FUBAR: Unknown error occurred and transaction is abandoned. Manual intervention needed.
* CANCELLED: The transaction was sent, but was not mined and has disappered from the mempool. This usually follows a transaction being obsoleted.
* OVERRIDDEN: Transaction has been manually overriden.
* REJECTED: The transaction was rejected by the node.
* REVERTED: The transaction was mined, but exception occurred during EVM execution. (Block number will be set)
* SUCCESS: THe transaction was successfully mined. (Block number will be set)
"""
PENDING = 0
SENDFAIL = StatusBits.DEFERRED | StatusBits.LOCAL_ERROR
RETRY = StatusBits.QUEUED | StatusBits.DEFERRED
READYSEND = StatusBits.QUEUED
OBSOLETED = StatusBits.OBSOLETE | StatusBits.IN_NETWORK
WAITFORGAS = StatusBits.GAS_ISSUES
SENT = StatusBits.IN_NETWORK
FUBAR = StatusBits.FINAL | StatusBits.UNKNOWN_ERROR
CANCELLED = StatusBits.IN_NETWORK | StatusBits.FINAL | StatusBits.OBSOLETE
OVERRIDDEN = StatusBits.FINAL | StatusBits.OBSOLETE | StatusBits.MANUAL
REJECTED = StatusBits.NODE_ERROR | StatusBits.FINAL
REVERTED = StatusBits.IN_NETWORK | StatusBits.FINAL | StatusBits.NETWORK_ERROR
SUCCESS = StatusBits.IN_NETWORK | StatusBits.FINAL
@enum.unique
class LockEnum(enum.IntEnum):
"""
STICKY: When set, reset is not possible
CREATE: Disable creation of accounts
SEND: Disable sending to network
QUEUE: Disable queueing new or modified transactions
"""
STICKY=1
INIT=2
CREATE=4
SEND=8
QUEUE=16
QUERY=32
ALL=int(0xfffffffffffffffe)
def status_str(v, bits_only=False):
"""Render a human-readable string describing the status
If the bit field exactly matches a StatusEnum value, the StatusEnum label will be returned.
If a StatusEnum cannot be matched, the string will be postfixed with "*", unless explicitly instructed to return bit field labels only.
:param v: Status bit field
:type v: number
:param bits_only: Only render individual bit labels.
:type bits_only: bool
:returns: Status string
:rtype: str
"""
s = ''
if not bits_only:
try:
s = StatusEnum(v).name
return s
except ValueError:
pass
if v == 0:
return 'NONE'
for i in range(16):
b = (1 << i)
if (b & 0xffff) & v:
n = StatusBits(b).name
if len(s) > 0:
s += ','
s += n
if not bits_only:
s += '*'
return s
def all_errors():
"""Bit mask of all error states
:returns: Error flags
:rtype: number
"""
return StatusBits.LOCAL_ERROR | StatusBits.NODE_ERROR | StatusBits.NETWORK_ERROR | StatusBits.UNKNOWN_ERROR
def is_error_status(v):
"""Check if value is an error state
:param v: Status bit field
:type v: number
:returns: True if error
:rtype: bool
"""
return bool(v & all_errors())
def dead():
"""Bit mask defining whether a transaction is still likely to be processed on the network.
:returns: Bit mask
:rtype: number
"""
return StatusBits.FINAL | StatusBits.OBSOLETE
def is_alive(v):
"""Check if transaction is still likely to be processed on the network.
The contingency of "likely" refers to the case a transaction has been obsoleted after sent to the network, but the network still confirms the obsoleted transaction. The return value of this method will not change as a result of this, BUT the state itself will (as the FINAL bit will be set).
:returns:
"""
return bool(v & dead() == 0)