From 89963d22c7e144e063b2ded76db264b759c8ded3 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Tue, 1 Apr 2025 23:03:13 +0300
Subject: initial iordata_test

---
 internal/ior.go | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

(limited to 'internal/ior.go')

diff --git a/internal/ior.go b/internal/ior.go
index 3d6fd1e..c2f2f02 100644
--- a/internal/ior.go
+++ b/internal/ior.go
@@ -43,34 +43,34 @@ func attachTracepoints(bpfModule *bpf.Module) error {
 	return nil
 }
 
-func Run() {
+func Run() error {
 	bpfModule, err := bpf.NewModuleFromFile("ior.bpf.o")
 	if err != nil {
-		panic(err)
+		return err
 	}
 	defer bpfModule.Close()
 
 	if err := flags.Get().ResizeBPFMaps(bpfModule); err != nil {
-		panic(err)
+		return err
 	}
 
 	if err := flags.Get().SetBPF(bpfModule); err != nil {
-		panic(err)
+		return err
 	}
 
 	if err := bpfModule.BPFLoadObject(); err != nil {
-		panic(err)
+		return err
 	}
 
 	if err := attachTracepoints(bpfModule); err != nil {
-		panic(err)
+		return err
 	}
 
 	// 4096 channel size, minimises event drops
 	ch := make(chan []byte, 4096)
 	rb, err := bpfModule.InitRingBuf("event_map", ch)
 	if err != nil {
-		panic(err)
+		return err
 	}
 	rb.Poll(300)
 
@@ -78,10 +78,10 @@ func Run() {
 	var cpuProfile, memProfile *os.File
 	if flags.Get().PprofEnable {
 		if cpuProfile, err = os.Create("ior.cpuprofile"); err != nil {
-			panic(err)
+			return err
 		}
 		if memProfile, err = os.Create("ior.memprofile"); err != nil {
-			panic(err)
+			return err
 		}
 		pprof.StartCPUProfile(cpuProfile)
 	} else {
@@ -118,4 +118,5 @@ func Run() {
 	totalDuration := time.Since(startTime)
 	<-pprofDone
 	fmt.Println("Good bye... (unloading BPF tracepoints will take a few seconds...) after", totalDuration)
+	return nil
 }
-- 
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