From b3853e1bdb60de0e82bf0a604cfd1a5273418c9e Mon Sep 17 00:00:00 2001
From: Extremesecrecy <10959169+extremesecrecy@users.noreply.github.com>
Date: Thu, 24 Jul 2025 07:50:33 -0700
Subject: [PATCH] CPU Usage Dive by Zero Issue (Chrome Console Error Reported)
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Added explicit checks in “CpuUse::UpdateCpuUse” to avoid division by zero; CPU usage and overhead are forced to 0 when times are zero

Validated audio driver CPU usage in “AudioHost::getJackStatus”, replacing non‑finite results with 0
---
 src/AudioHost.cpp |  6 +++++-
 src/CpuUse.hpp    | 17 +++++++++++------
 2 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/src/AudioHost.cpp b/src/AudioHost.cpp
index 3cdb7cc..845302a 100644
--- a/src/AudioHost.cpp
+++ b/src/AudioHost.cpp
@@ -2119,7 +2119,11 @@ public:
 
         if (this->audioDriver != nullptr)
         {
-            result.cpuUsage_ = audioDriver->CpuUse();
+            result.cpuUsage_ = audioDriver->CpuUse();            
+			if (!std::isfinite(result.cpuUsage_))
+            {
+                result.cpuUsage_ = 0.0f;
+            }
         }
         GetCpuFrequency(&result.cpuFreqMin_, &result.cpuFreqMax_);
         result.hasCpuGovernor_ = HasCpuGovernor();
diff --git a/src/CpuUse.hpp b/src/CpuUse.hpp
index e2dedac..d5b96d2 100644
--- a/src/CpuUse.hpp
+++ b/src/CpuUse.hpp
@@ -140,14 +140,19 @@ namespace pipedal
                 overheadTime = readTime;
             }
 
-            SampleT totalTime = writeTime+ readTime + processingTime;
-            SampleT maxTime = waitTime+processingTime;
-            
+            SampleT totalTime = writeTime + readTime + processingTime;
+            SampleT maxTime = waitTime + processingTime;
 
-            float result = 100.0f*(processingTime)/(maxTime);
-            float overhead = 100.0F*(overheadTime*2)/totalTime;
+            float result = 0.0f;
+            float overhead = 0.0f;
+            if (maxTime != 0 && totalTime != 0)
             {
-                std::lock_guard lock { sync};
+                result = 100.0f * (processingTime) / (maxTime);
+                overhead = 100.0f * (overheadTime * 2) / totalTime;
+            }
+
+            {
+                std::lock_guard lock{sync};
                 currentCpuUse = result;
                 currentOverhead = overhead;
             }