Cancel Order

cancelOrder cancels the specified order. Partial cancels are not allowed.

Function prototype:

function cancelOrder(
    address[3] _orderAddresses,
    uint256[3] _orderValues,
    uint8 _v,
    bytes32 _r,
    bytes32 _s
);

Parameters:

Parameter	Type	Description
_orderAddresses[0]	address	Address that created the order.
_orderAddresses[1]	address	Address of sell token.
_orderAddresses[2]	address	Address of buy token.
_orderValues[0]	uint256	Amount in sell token.
_orderValues[1]	uint256	Amount in buy token .
_orderValues[2]	uint256	Order nonce used for uniqueness.
_v	uint8	Parameter parsed from the signature 1b or 1c.
_r	bytes32	Parameter parsed from the signature (from 0 to 32 bytes).
_s	bytes32	parameter parsed from the signature (from 32 to 64 bytes).

cancelOrder will revert if the caller of the function is different from the address after recovering with the signature i.e. only order maker can cancel it.

If successful, cancelOrder will emit a Cancel event.

event CancelOrder(
    address indexed makerBuyToken,
    address indexed makerSellToken,
    address indexed maker,
    bytes32 orderHash,
    uint256 nonce
);