bp/LSSHandler: support STATS_TAG

CM4all · Aug 2, 2024 · 1811d01 · 1811d01
1 parent 764157e
commit 1811d01
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Showing 2 changed files with 3 additions and 2 deletions.
diff --git a/doc/translation.rst b/doc/translation.rst
@@ -1241,7 +1241,8 @@ described in this section.
   - ``ACCEPT_HTTP``: create a transient HTTP listener which receives
     HTTP requests from the child process; a ``LISTENER_TAG`` packet
     may be present which will be echoed on all translation requests
-    for this listener.
+    for this listener.  If ``STATS_TAG`` is present, it will be used
+    instead of ``LISTENER_TAG`` for Prometheus metrics.
 
   The payload is the socket path inside the new mount namespace.
   After the socket path, a null byte may follow with opaque data which

diff --git a/src/bp/LSSHandler.cxx b/src/bp/LSSHandler.cxx
@@ -63,7 +63,7 @@ class BpListenStreamStockHandler::HttpListener final
 		config.access_logger = false; // TODO?
 
 		instance.listeners.emplace_front(instance,
-						 instance.listener_stats[config.tag],
+						 response.stats_tag != nullptr ? instance.listener_stats[response.stats_tag] : instance.listener_stats[config.tag],
 						 nullptr,
 						 nullptr, // TODO?
 						 instance.translation_service,