POSDAO Smart Contracts Docs

Certifier

contract Certifier

is OwnedEternalStorage, ICertifier

Allows validators to use a zero gas price for their service transactions (see https://wiki.parity.io/Permissioning.html#gas-price for more info).

Source: contracts/Certifier.sol

Index

Reference

Events

  • Confirmed

    event Confirmed(address who)

    Emitted by the `certify` function when the specified address is allowed to use a zero gas price for its transactions.

    Parameters:
    who - Specified address allowed to make zero gas price transactions.

  • Revoked

    event Revoked(address who)

    Emitted by the `revoke` function when the specified address is denied using a zero gas price for its transactions.

    Parameters:
    who - Specified address for which zero gas price transactions are denied.

Modifiers

  • onlyInitialized

    modifier onlyInitialized()

    Ensures the `initialize` function was called before.

Functions

  • _certify

    function _certify(address _who) internal

    An internal function for the `certify` and `initialize` functions.

    Parameters:
    _who - The address for which transactions with a zero gas price must be allowed.

  • certified

    function certified(address _who) external view returns (bool)

    Returns a boolean flag indicating whether the specified address is allowed to use zero gas price transactions. Returns `true` if either the address is certified using the `_certify` function or if `ValidatorSet.isReportValidatorValid` returns `true` for the specified address.

    Parameters:
    _who - The address for which the boolean flag must be determined.
    Returns:
    bool

  • certify

    function certify(address _who) external

    Allows the specified address to use a zero gas price for its transactions. Can only be called by the `owner`.

    Modifiers:
    onlyOwner onlyInitialized
    Parameters:
    _who - The address for which zero gas price transactions must be allowed.

  • initialize

    function initialize(address[] _certifiedAddresses, address _validatorSet) external

    Initializes the contract at network startup. Must be called by the constructor of the `Initializer` contract.

    Parameters:
    _certifiedAddresses - The addresses for which a zero gas price must be allowed.
    _validatorSet - The address of the `ValidatorSet` contract.

  • isInitialized

    function isInitialized() public view returns (bool)

    Returns a boolean flag indicating if the `initialize` function has been called.

    Returns:
    bool

  • revoke

    function revoke(address _who) external

    Denies the specified address usage of a zero gas price for its transactions. Can only be called by the `owner`.

    Modifiers:
    onlyOwner onlyInitialized
    Parameters:
    _who - The address for which transactions with a zero gas price must be denied.

  • validatorSetContract

    function validatorSetContract() public view returns (IValidatorSet)

    Returns the address of the `ValidatorSet` contract.

    Returns:
    IValidatorSet
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