copyPaths(): Use queryValidPaths() to reduce SSH latency

2017-03-16 13:50:01 +01:00 · 2017-03-16 13:50:01 +01:00 · c5b83d8913
commit c5b83d8913
parent 91d67692cf
10 changed files with 45 additions and 37 deletions
--- a/src/libstore/legacy-ssh-store.cc
+++ b/src/libstore/legacy-ssh-store.cc
@ -226,6 +226,19 @@ struct LegacySSHStore : public Store
        out.insert(res.begin(), res.end());
    }

+    PathSet queryValidPaths(const PathSet & paths, bool maybeSubstitute = false) override
+    {
+        auto conn(connections->get());
+
+        conn->to
+            << cmdQueryValidPaths
+            << false // lock
+            << maybeSubstitute
+            << paths;
+        conn->to.flush();
+
+        return readStorePaths<PathSet>(*this, conn->from);
+    }
 };

 static RegisterStoreImplementation regStore([](