From a460324d9411eb968a5c33a436c62454115b1eb2 Mon Sep 17 00:00:00 2001
From: Florian Pose <fp@igh.de>
Date: Tue, 18 Mar 2025 11:33:19 +0100
Subject: [PATCH] Warning if FAKE_EC_NAME is not set.

---
 fake_lib/fakeethercat.cpp | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/fake_lib/fakeethercat.cpp b/fake_lib/fakeethercat.cpp
index c0424f74..1339bdc1 100644
--- a/fake_lib/fakeethercat.cpp
+++ b/fake_lib/fakeethercat.cpp
@@ -437,11 +437,20 @@ ec_master_t *ecrt_request_master(
 
 static const char *getName()
 {
+    static const char *default_name = "FakeEtherCAT";
+
     if (const auto ans = getenv("FAKE_EC_NAME"))
     {
         return ans;
     }
-    return "FakeEtherCAT";
+
+    std::cerr
+        << "\nThe environment variable \"FAKE_EC_NAME\" is not set.\n"
+        << "Using the default value \"" << default_name << "\".\n"
+        << "Please consider to set unique names when using multiple"
+        << " instances.\n\n";
+        
+    return default_name;
 }
 
 static int mkpath(const std::string &file_path)