Function pink::set_hook

pub fn set_hook(
    hook: HookPoint,
    contract: AccountId,
    selector: u32,
    gas_limit: u64
)

Sets a hook receiver for a given hook point.

A hook is a mechanism that allows certain actions to be triggered when a specific situation arises. When the situation corresponding to the hook point occurs, the runtime will call the receiver contract using the specified selector.

Supported Hook Points

• OnBlockEnd: The receiver contract will be invoked once all events in a Phala chain block have been processed.

Arguments

• hook: The hook point for which the receiver is set.
• contract: The AccountId of the contract to be called when the hook is triggered.
• selector: The function selector to be used when calling the receiver contract.
• gas_limit: The maximum amount of gas that can be used when calling the receiver contract.

Note: The cost of the execution would be charged to the contract itself.

This api is only available for the system contract. User contracts should use System::set_hook instead.