Remove possible overflow

ic-auction/src/state.rs

@@ -147,7 +147,7 @@ impl AuctionState {
 
     fn get_fee_ratio(&self) -> f64 {
         let min_cycles = self.min_cycles as f64;
-        let current_cycles = ic::balance() as f64;
+        let current_cycles = ic::balance128() as f64;
         if min_cycles == 0.0 {
             // Setting min_cycles to zero effectively turns off the auction functionality, as all the
             // fees will go to the owner.

ic-canister/tests/canister-c/src/lib.rs

@@ -93,7 +93,7 @@ mod tests {
 
         let metrics_snapshot = metrics.map.into_iter().next().unwrap().1;
 
-        assert_eq!(metrics_snapshot.cycles, 1e+14 as u64);
+        assert_eq!(metrics_snapshot.cycles, 1e+14 as u128);
         assert_eq!(metrics_snapshot.stable_memory_size, 0);
     }
 }

ic-kit/src/ic.rs

@@ -33,12 +33,6 @@ pub fn time() -> u64 {
     get_context().time()
 }
 
-/// The balance of the canister.
-#[inline(always)]
-pub fn balance() -> u64 {
-    get_context().balance()
-}
-
 /// The balance of the canister.
 #[inline(always)]
 pub fn balance128() -> u128 {

ic-kit/src/mock.rs

@@ -819,8 +819,8 @@ mod tests {
         }
 
         /// An update method that returns the balance of the canister.
-        pub fn balance() -> u64 {
-            ic::balance()
+        pub fn balance() -> u128 {
+            ic::balance128()
         }
 
         /// An update method that returns the number of cycles provided by the user in the call.

ic-metrics/src/lib.rs

@@ -37,7 +37,7 @@
 //! #[update]
 //! fn collect_metrics(&mut self) {
 //!     let mut metrics = self.metrics.borrow_mut();
-//!     metrics.insert(Metrics { cycles: ic_kit::ic::balance() });
+//!     metrics.insert(Metrics { cycles: ic_kit::ic::balance128() });
 //! }
 //!
 //! #[query]
@@ -70,7 +70,7 @@ pub struct MetricsStorage {
 
 #[derive(CandidType, Deserialize, IcStorage, Default, Clone, Debug, PartialEq, Eq)]
 pub struct MetricsData {
-    pub cycles: u64,
+    pub cycles: u128,
     pub stable_memory_size: u64,
     pub heap_memory_size: u64,
 }
@@ -129,7 +129,7 @@ pub trait Metrics: Canister {
 
 fn curr_values() -> MetricsData {
     MetricsData {
-        cycles: ic_exports::ic_kit::ic::balance(),
+        cycles: ic_exports::ic_kit::ic::balance128(),
         stable_memory_size: {
             #[cfg(target_family = "wasm")]
             {