From 95b1d03ffc83388f0088d91d72607af5f3ff2b90 Mon Sep 17 00:00:00 2001
From: Evan Chen <evan.yf.chen@ibm.com>
Date: Fri, 12 Nov 2021 14:49:37 +0800
Subject: [PATCH] update

---
 go.mod          |  7 +++++++
 go.sum          |  8 ++++++++
 process.go      | 31 +++++++++++++++++++++++++++++++
 process_test.go | 10 ++++++++++
 4 files changed, 56 insertions(+)
 create mode 100644 go.sum
 create mode 100644 process.go
 create mode 100644 process_test.go

diff --git a/go.mod b/go.mod
index 2554adb..33e52fc 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,10 @@
 module kumoly.io/lib/stat
 
 go 1.17
+
+require kumoly.io/lib/klog v0.0.8
+
+require (
+	github.com/mattn/go-isatty v0.0.14 // indirect
+	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..a6631d5
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,8 @@
+github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
+github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
+golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
+golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+kumoly.io/lib/klog v0.0.8 h1:6hTfDlZh7KGnPrd2tUrauCKRImSnyyN9DHXpey3Czn8=
+kumoly.io/lib/klog v0.0.8/go.mod h1:Snm+c1xRrh/RbXsxQf7UGYbAJGPcIa6bEEN+CmzJh7M=
+kumoly.io/lib/klog v0.1.10 h1:GJxwcsUct8nF3oHtsJPTIlPKTUeB/+7jsbgh3bMvKMc=
+kumoly.io/lib/klog v0.1.10/go.mod h1:Snm+c1xRrh/RbXsxQf7UGYbAJGPcIa6bEEN+CmzJh7M=
diff --git a/process.go b/process.go
new file mode 100644
index 0000000..cfc3dcf
--- /dev/null
+++ b/process.go
@@ -0,0 +1,31 @@
+package stat
+
+import (
+	"os"
+	"runtime"
+	"syscall"
+
+	"kumoly.io/lib/klog"
+)
+
+func IsRunning(pid int) bool {
+	p, err := os.FindProcess(pid)
+	if err != nil {
+		klog.Debug(err)
+		return false
+	}
+	if runtime.GOOS == "windows" {
+		return true
+	}
+	err = p.Signal(syscall.Signal(0))
+	if err == syscall.ESRCH {
+		return false
+	}
+	// running
+	// if err == nil {
+	// 	return true
+	// }
+
+	// other errors ignored but we know that the proccess is running
+	return true
+}
diff --git a/process_test.go b/process_test.go
new file mode 100644
index 0000000..133eb68
--- /dev/null
+++ b/process_test.go
@@ -0,0 +1,10 @@
+package stat
+
+import (
+	"fmt"
+	"testing"
+)
+
+func TestIsRunning(t *testing.T) {
+	fmt.Println(IsRunning(26340))
+}