X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=lib%2Fstream.c;h=eabace8a4ea72ad82fc54bc2657540ade09b99f4;hb=e09616c6c9d6d5f01e3400917b59764d263fea4a;hp=2f418c42ae22b36f160ba0d59d2ded3ee246bc77;hpb=f125905cdd3dc0339ad968c0a70128807884b400;p=openvswitch

diff --git a/lib/stream.c b/lib/stream.c
index 2f418c42..eabace8a 100644
--- a/lib/stream.c
+++ b/lib/stream.c
@@ -489,6 +489,25 @@ pstream_verify_name(const char *name)
     return pstream_lookup_class(name, &class);
 }
 
+/* Returns 1 if the stream or pstream specified by 'name' needs periodic probes
+ * to verify connectivity.  For [p]streams which need probes, it can take a
+ * long time to notice the connection has been dropped.  Returns 0 if the
+ * stream or pstream does not need probes, and -1 if 'name' is not valid. */
+int
+stream_or_pstream_needs_probes(const char *name)
+{
+    const struct pstream_class *pclass;
+    const struct stream_class *class;
+
+    if (!stream_lookup_class(name, &class)) {
+        return class->needs_probes;
+    } else if (!pstream_lookup_class(name, &pclass)) {
+        return pclass->needs_probes;
+    } else {
+        return -1;
+    }
+}
+
 /* Attempts to start listening for remote stream connections.  'name' is a
  * connection name in the form "TYPE:ARGS", where TYPE is an passive stream
  * class's name and ARGS are stream class-specific.