holochain 0.7.0-dev.22

Holochain, a framework for distributed applications
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25

use crate::holochain_wasmer_host::module::WASM_METERING_LIMIT;
use holochain_wasmer_host::module::InstanceWithStore;
use std::sync::Arc;
use wasmer::AsStoreMut;
use wasmer_middlewares::metering::{get_remaining_points, set_remaining_points, MeteringPoints};

pub fn reset_metering_points(instance_with_store: Arc<InstanceWithStore>) {
    let mut store_lock = instance_with_store.store.lock();
    let mut store_mut = store_lock.as_store_mut();
    set_remaining_points(
        &mut store_mut,
        instance_with_store.instance.as_ref(),
        WASM_METERING_LIMIT,
    );
}

pub fn get_used_metering_points(instance_with_store: Arc<InstanceWithStore>) -> u64 {
    let mut store_lock = instance_with_store.store.lock();
    let mut store_mut = store_lock.as_store_mut();

    match get_remaining_points(&mut store_mut, instance_with_store.instance.as_ref()) {
        MeteringPoints::Remaining(points) => WASM_METERING_LIMIT - points,
        MeteringPoints::Exhausted => WASM_METERING_LIMIT,
    }
}