fix(memory_usage): prevent used swap underflow on windows (#2689)

1 files changed, 2 insertions, 2 deletions

diff --git a/src/modules/memory_usage.rs b/src/modules/memory_usage.rs
index 121855670..327e0ac66 100644
--- a/src/modules/memory_usage.rs
+++ b/src/modules/memory_usage.rs
@@ -51,7 +51,7 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
         0 => system.free,
         _ => system.avail,
     };
-    let used_memory_kib = system.total - avail_memory_kib;
+    let used_memory_kib = system.total.saturating_sub(avail_memory_kib);
     let total_memory_kib = system.total;
     let ram_used = (used_memory_kib as f64 / total_memory_kib as f64) * 100.;
     let ram_pct = format_pct(ram_used, pct_sign);
@@ -63,7 +63,7 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
 
     let ram = format_usage_total(used_memory_kib, total_memory_kib);
     let total_swap_kib = system.swap_total;
-    let used_swap_kib = system.swap_total - system.swap_free;
+    let used_swap_kib = system.swap_total.saturating_sub(system.swap_free);
     let percent_swap_used = (used_swap_kib as f64 / total_swap_kib as f64) * 100.;
     let swap_pct = format_pct(percent_swap_used, pct_sign);
     let swap = format_usage_total(used_swap_kib, total_swap_kib);