Modifying the Timelock Function

Oct 13, 2025 by talynt.org 117 views

Introduction

In the world of blockchain development, implementing timelocks on wallets is a crucial aspect of ensuring the security and integrity of smart contracts. A timelock is a mechanism that allows a contract to execute a specific action after a certain period of time has elapsed. In this article, we will explore how to implement multiple timelocks on wallets in a smart contract using Solidity, ERC20, and OpenZeppelin.

Understanding Timelocks

A timelock is a mechanism that allows a contract to execute a specific action after a certain period of time has elapsed. This can be useful in a variety of scenarios, such as:

Delayed token releases: A timelock can be used to release tokens to a wallet after a certain period of time has elapsed.
Vesting schedules: A timelock can be used to implement a vesting schedule, where tokens are released to a wallet at regular intervals.
Governance mechanisms: A timelock can be used to implement governance mechanisms, such as voting or proposal submission.

OpenZeppelin's Timelock Function

OpenZeppelin provides a timelock function that can be used to implement timelocks on wallets. The function is as follows:

function ... {
    // ...
}

However, this function only allows for a single timelock to be implemented. In this article, we will explore how to modify this function to allow for multiple timelocks to be implemented.

Modifying the Timelock Function

To modify the timelock function to allow for multiple timelocks, we can use an array to store the timelocks. Each timelock can be represented by a struct that contains the following information:

_wallet: The wallet address that the timelock is associated with.
_amount: The amount of tokens that the timelock is associated with.
_unlockTime: The time at which the timelock will unlock.
_lockTime: The time at which the timelock will lock.

Here is an example of how the modified timelock function could be implemented:

pragma solidity ^0.8.0;
contract TimelockContract {
struct Timelock {
address _wallet;
uint256 _amount;
uint256 _unlockTime;
uint256 _lockTime;
}
Timelock[] public timelocks;

function addTimelock(address _wallet, uint256 _amount, uint256 _unlockTime, uint256 _lockTime) public {
    timelocks.push(Timelock(_wallet, _amount, _unlockTime, _lockTime));
}

function getTimelocks() public view returns (Timelock[] memory) {
    return timelocks;
}

function unlockTimelock(uint256 _index) public {
    require(_index &lt; timelocks.length, &quot;Timelock index out of bounds&quot;);
    require(block.timestamp &gt;= timelocks[_index]._unlockTime, &quot;Timelock not yet unlocked&quot;);
    require(block.timestamp &lt;= timelocks[_index]._lockTime, &quot;Timelock already locked&quot;);

    // Unlock the timelock
    // ...
}

}

Implementing Multiple Timelocks

To implement multiple timelocks, we can use the addTimelock function to add multiple timelocks to the contract. Each timelock can be associated with a different wallet and amount of tokens.

Here is an example of how to implement multiple timelocks:

contract TimelockContract {
    // ...
function addTimelock(address _wallet, uint256 _amount, uint256 _unlockTime, uint256 _lockTime) public {
    timelocks.push(Timelock(_wallet, _amount, _unlockTime, _lockTime));
}

function getTimelocks() public view returns (Timelock[] memory) {
    return timelocks;
}

function unlockTimelock(uint256 _index) public {
    require(_index &lt; timelocks.length, &quot;Timelock index out of bounds&quot;);
    require(block.timestamp &gt;= timelocks[_index]._unlockTime, &quot;Timelock not yet unlocked&quot;);
    require(block.timestamp &lt;= timelocks[_index]._lockTime, &quot;Timelock already locked&quot;);

    // Unlock the timelock
    // ...
}

function main() public {
    // Add multiple timelocks
    addTimelock(address(0x1234567890), 100, 1643723400, 1643723400 + 30 days);
    addTimelock(address(0x9876543210), 200, 1643723400 + 30 days, 1643723400 + 60 days);
    addTimelock(address(0x7654321098), 300, 1643723400 + 60 days, 1643723400 + 90 days);

    // Unlock the timelocks
    unlockTimelock(0);
    unlockTimelock(1);
    unlockTimelock(2);
}

}

Conclusion

Introduction

In our previous article, we explored how to implement multiple timelocks on wallets in a smart contract using Solidity, ERC20, and OpenZeppelin. In this article, we will answer some of the most frequently asked questions about implementing multiple timelocks on wallets in a smart contract.

Q: What is a timelock?

A timelock is a mechanism that allows a contract to execute a specific action after a certain period of time has elapsed. This can be useful in a variety of scenarios, such as delayed token releases, vesting schedules, and governance mechanisms.

Q: Why do I need to implement multiple timelocks on wallets?

Implementing multiple timelocks on wallets allows you to create complex vesting schedules and delayed token releases. For example, you can create a vesting schedule where tokens are released to a wallet at regular intervals, or a delayed token release where tokens are released to a wallet after a certain period of time has elapsed.

Q: How do I implement multiple timelocks on wallets?

To implement multiple timelocks on wallets, you can use the addTimelock function to add multiple timelocks to the contract. Each timelock can be associated with a different wallet and amount of tokens.

Q: What is the difference between a timelock and a vesting schedule?

A timelock is a mechanism that allows a contract to execute a specific action after a certain period of time has elapsed. A vesting schedule, on the other hand, is a specific type of timelock that is used to release tokens to a wallet at regular intervals.

Q: Can I use multiple timelocks on the same wallet?

Yes, you can use multiple timelocks on the same wallet. Each timelock can be associated with a different amount of tokens and unlock time.

Q: How do I unlock a timelock?

To unlock a timelock, you can use the unlockTimelock function to check if the timelock has been unlocked. If the timelock has been unlocked, you can then release the tokens to the wallet.

Q: What are some common use cases for multiple timelocks on wallets?

Some common use cases for multiple timelocks on wallets include:

Delayed token releases: A timelock can be used to release tokens to a wallet after a certain period of time has elapsed.
Vesting schedules: A timelock can be used to implement a vesting schedule, where tokens are released to a wallet at regular intervals.
Governance mechanisms: A timelock can be used to implement governance mechanisms, such as voting or proposal submission.

Q: How do I secure my timelocks?

To secure your timelocks, you can use a variety of techniques, such as:

Using a secure random number generator: A secure random number generator can be used to generate a random unlock time for each timelock.
Using a secure hash function: A secure hash function can be used to hash the unlock time and lock time for each timelock.
Using a secure encryption algorithm: A secure encryption algorithm can be used to encrypt the unlock time and lock time for each timelock.

Conclusion

In this article, we answered some of the most frequently asked questions about implementing multiple timelocks on wallets in a smart contract. We discussed the benefits of using timelocks in smart contracts, including delayed token releases, vesting schedules, and governance mechanisms. We also provided some common use cases for multiple timelocks on wallets and discussed some techniques for securing your timelocks.