Allow to run scripts in the server's command

Signed-off-by: Valery Piashchynski <[email protected]>

1 files changed, 6 insertions, 3 deletions

diff --git a/internal/protocol.go b/internal/protocol.go
index 78174118..73cb960e 100755
--- a/internal/protocol.go
+++ b/internal/protocol.go
@@ -68,8 +68,7 @@ func SendControl(rl relay.Relay, payload interface{}) error {
 	fr.WritePayload(data)
 	fr.WriteCRC(fr.Header())
 
-	// hold a pointer to a frame
-	// Do we need a copy here????
+	// we don't need a copy here, because frame copy the data before send
 	err = rl.Send(fr)
 	if err != nil {
 		return errors.E(op, err)
@@ -78,7 +77,7 @@ func SendControl(rl relay.Relay, payload interface{}) error {
 	return nil
 }
 
-func FetchPID(rl relay.Relay) (int64, error) {
+func Pid(rl relay.Relay) (int64, error) {
 	const op = errors.Op("fetch_pid")
 	err := SendControl(rl, pidCommand{Pid: os.Getpid()})
 	if err != nil {
@@ -111,5 +110,9 @@ func FetchPID(rl relay.Relay) (int64, error) {
 		return 0, errors.E(op, err)
 	}
 
+	if link.Pid <= 0 {
+		return 0, errors.E(op, errors.Str("pid should be greater than 0"))
+	}
+
 	return int64(link.Pid), nil
 }