JsonUi: try to handle all available requests, on input event, not just the first one

src/json_ui.cc

@@ -425,7 +425,7 @@ void JsonUI::parse_requests(EventMode mode)
         m_requests += StringView{buf, buf + size};
     }
 
-    if (not m_requests.empty())
+    while (not m_requests.empty())
     {
         const char* pos = nullptr;
         try
@@ -442,7 +442,9 @@ void JsonUI::parse_requests(EventMode mode)
             // try to salvage request by dropping its first line
             pos = std::min(m_requests.end(), find(m_requests, '\n')+1);
         }
-        if (pos)
+        if (not pos)
+            break; // unterminated request ?
+
         m_requests = String{pos, m_requests.end()};
     }