Function gstd::exec::reply_deposit
source · pub fn reply_deposit(message_id: MessageId, amount: u64) -> Result<(), Error>
Expand description
Provide gas deposit from current message to handle reply message on given message id.
This message id should be sent within the execution. Once destination actor
or system sends reply on it, the gas limit ignores, if the program gave
deposit - the only it will be used for execution of handle_reply
.
§Examples
use gcore::{exec, msg};
#[no_mangle]
extern "C" fn handle() {
let message_id =
msg::send(msg::source(), b"Outgoing message", 0).expect("Failed to send message");
exec::reply_deposit(message_id, 100_000).expect("Failed to deposit reply");
}
#[no_mangle]
extern "C" fn handle_reply() {
// I will be executed for pre-defined (deposited) 100_000 of gas!
}