MXCToken

0x5ca381bbfb58f0092df149bd3d243b08b9a8386e

totalSupply keyboard_arrow_up

    function totalSupply() public view returns (uint256) {
        return totalSupply_;
    }

balanceOf keyboard_arrow_up

    function balanceOf(address _owner) public view returns (uint256) {
        return balances[_owner];
    }

transfer keyboard_arrow_up

    function transfer(address _to, uint256 _value) public returns (bool) {
        require(_to != address(0));
        require(_value <= balances[msg.sender]);

        balances[msg.sender] = balances[msg.sender].sub(_value);
        balances[_to] = balances[_to].add(_value);
        emit Transfer(msg.sender, _to, _value);
        return true;
    }

allowance keyboard_arrow_up

    function allowance(
        address _owner,
        address _spender
   )
        public
        view
        returns (uint256)
    {
        return allowed[_owner][_spender];
    }

transferFrom keyboard_arrow_up

    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    )
        public
        returns (bool)
    {
        require(_to != address(0));
        require(_value <= balances[_from]);
        require(_value <= allowed[_from][msg.sender]);

        balances[_from] = balances[_from].sub(_value);
        balances[_to] = balances[_to].add(_value);
        allowed[_from][msg.sender] = allowed[_from][msg.sender].sub(_value);
        emit Transfer(_from, _to, _value);
        return true;
    }

approve keyboard_arrow_up

    function approve(address _spender, uint256 _value) public returns (bool) {
        allowed[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }

increaseApproval keyboard_arrow_up

    function increaseApproval(
        address _spender,
        uint256 _addedValue
    )
        public
        returns (bool)
    {
        allowed[msg.sender][_spender] = (
            allowed[msg.sender][_spender].add(_addedValue));
        emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
    }

decreaseApproval keyboard_arrow_up

    function decreaseApproval(
        address _spender,
        uint256 _subtractedValue
    )
        public
        returns (bool)
    {
        uint256 oldValue = allowed[msg.sender][_spender];
        if (_subtractedValue > oldValue) {
            allowed[msg.sender][_spender] = 0;
        } else {
            allowed[msg.sender][_spender] = oldValue.sub(_subtractedValue);
        }
        emit Approval(msg.sender, _spender, allowed[msg.sender][_spender]);
        return true;
    }

vestBalanceOf keyboard_arrow_up

    function vestBalanceOf(address who)
        public view
        returns (uint256 amount, uint256 vestedAmount, uint256 start, uint256 cliff, uint256 vesting)
    {
        require(who != address(0));
        amount = timeLocks[who].amount;
        vestedAmount = timeLocks[who].vestedAmount;
        start = timeLocks[who].start;
        cliff = timeLocks[who].cliff;
        vesting = timeLocks[who].vesting;
    }

grantToken keyboard_arrow_up

    function grantToken(
        address _to,
        uint256 _amount,
        uint256 _start,
        uint256 _cliff,
        uint256 _vesting
    )
        public
        returns (bool success)
    {
        require(_to != address(0));
        require(_amount <= balances[msg.sender], "Not enough balance to grant token.");
        require(_amount > 0, "Nothing to transfer.");
        require((timeLocks[_to].amount.sub(timeLocks[_to].vestedAmount) == 0), "The previous vesting should be completed.");
        require(_cliff >= _start, "_cliff must be >= _start");
        require(_vesting > _start, "_vesting must be bigger than _start");
        require(_vesting > _cliff, "_vesting must be bigger than _cliff");

        balances[msg.sender] = balances[msg.sender].sub(_amount);
        timeLocks[_to] = TimeLock(_amount, 0, 0, _start, _cliff, _vesting, msg.sender);

        emit NewTokenGrant(msg.sender, _to, _amount, _start, _cliff, _vesting);
        return true;
    }

grantTokenStartNow keyboard_arrow_up

    function grantTokenStartNow(
        address _to,
        uint256 _amount,
        uint256 _cliffMonths,
        uint256 _vestingMonths
    )
        public
        returns (bool success)
    {
        return grantToken(
            _to,
            _amount,
            now,
            now.add(_cliffMonths.mul(MONTH)),
            now.add(_vestingMonths.mul(MONTH))
            );
    }

redeemVestableToken keyboard_arrow_up

    function redeemVestableToken(address _to)
        public
        returns (bool success)
    {
        require(_to != address(0));
        require(timeLocks[_to].amount > 0, "Nothing was granted to this address!");
        require(timeLocks[_to].vestedAmount < timeLocks[_to].amount, "All tokens were vested!");

        (uint256 amount, uint256 vestedMonths, uint256 curTime) = calcVestableToken(_to);
        require(amount > 0, "Nothing to redeem now.");

        TimeLock storage t = timeLocks[_to];
        balances[_to] = balances[_to].add(amount);
        t.vestedAmount = t.vestedAmount.add(amount);
        t.vestedMonths = t.vestedMonths + uint16(vestedMonths);
        t.cliff = curTime;

        emit VestedTokenRedeemed(_to, amount, vestedMonths);
        return true;
    }

returnGrantedToken keyboard_arrow_up

    function returnGrantedToken(uint256 _amount)
        public
        returns (bool success)
    {
        address to = timeLocks[msg.sender].from;
        require(to != address(0));
        require(_amount > 0, "Nothing to transfer.");
        require(timeLocks[msg.sender].amount > 0, "Nothing to return.");
        require(_amount <= timeLocks[msg.sender].amount.sub(timeLocks[msg.sender].vestedAmount), "Not enough granted token to return.");

        timeLocks[msg.sender].amount = timeLocks[msg.sender].amount.sub(_amount);
        balances[to] = balances[to].add(_amount);

        emit GrantedTokenReturned(msg.sender, to, _amount);
        return true;
    }