wip: migrate to mono-repo. SPN has already been moved to spn/

service/process/process_default.go

@@ -0,0 +1,23 @@
+//go:build !windows && !linux
+// +build !windows,!linux
+
+package process
+
+import (
+	"context"
+)
+
+// SystemProcessID is the PID of the System/Kernel itself.
+const SystemProcessID = 0
+
+// GetProcessGroupLeader returns the process that leads the process group.
+// Returns nil on unsupported platforms.
+func (p *Process) FindProcessGroupLeader(ctx context.Context) error {
+	return nil
+}
+
+// GetProcessGroupID returns the process group ID of the given PID.
+// Returns undefined process ID on unsupported platforms.
+func GetProcessGroupID(ctx context.Context, pid int) (int, error) {
+	return UndefinedProcessID, nil
+}