turn process monitoring events into structured objects

internal/psscanner/psscanner.go

@@ -1,13 +1,33 @@
 package psscanner
 
+import (
+	"fmt"
+	"strconv"
+)
+
 type PSScanner struct{}
 
+type PSEvent struct {
+	UID int
+	PID int
+	CMD string
+}
+
+func (evt PSEvent) String() string {
+	uid := strconv.Itoa(evt.UID)
+	if evt.UID == -1 {
+		uid = "???"
+	}
+
+	return fmt.Sprintf("UID=%-4s PID=%-6d | %s", uid, evt.PID, evt.CMD)
+}
+
 func NewPSScanner() *PSScanner {
 	return &PSScanner{}
 }
 
-func (p *PSScanner) Run(triggerCh chan struct{}) (chan string, chan error) {
-	eventCh := make(chan string, 100)
+func (p *PSScanner) Run(triggerCh chan struct{}) (chan PSEvent, chan error) {
+	eventCh := make(chan PSEvent, 100)
 	errCh := make(chan error)
 	pl := make(procList)