1 files changed, 13 insertions, 1 deletions
diff --git a/src/sender_client.hh b/src/sender_client.hh
index 5d0bd35..54339cf 100644
--- a/src/sender_client.hh
+++ b/src/sender_client.hh
@@ -10,12 +10,24 @@ class Config;
 
 class SenderClient {
 public:
+    class Error {
+    public:
+        virtual ~Error() {}
+
+        virtual void error(const std::string& message) = 0;
+        virtual void error(const std::string& message, int error) = 0;
+
+    protected:
+        Error() {}
+    };
+
     virtual ~SenderClient() {}
 
     virtual void send(const std::string& channel,
                       const std::string& message) = 0;
 
-    static std::unique_ptr<SenderClient> create(const Config* config);
+    static std::unique_ptr<SenderClient> create(
+            const Config* config, std::shared_ptr<Error> error = nullptr);
 
 protected:
     SenderClient() {}