Support for error vectors

[govpp.git] / adapter / vppapiclient / stat_client.go

diff --git a/adapter/vppapiclient/stat_client.go b/adapter/vppapiclient/stat_client.go
index 2615b65..389c93b 100644 (file)
--- a/adapter/vppapiclient/stat_client.go
+++ b/adapter/vppapiclient/stat_client.go
@@ -71,6 +71,13 @@ func (c *statClient) Connect() error {
                sockName = c.socketName
        }
 
+       if _, err := os.Stat(sockName); err != nil {
+               if os.IsNotExist(err) {
+                       return fmt.Errorf("stats socket file %q does not exists, ensure that VPP is running with `statseg { ... }` section in config", sockName)
+               }
+               return fmt.Errorf("stats socket file error: %v", err)
+       }
+
        rc := C.govpp_stat_connect(C.CString(sockName))
        if rc != 0 {
                return fmt.Errorf("connecting to VPP stats API failed (rc=%v)", rc)