about summary refs log tree commit diff
path: root/src/libstore/local-store.cc
diff options
context:
space:
mode:
authorEelco Dolstra <eelco.dolstra@logicblox.com>2012-07-11T15·08-0400
committerEelco Dolstra <eelco.dolstra@logicblox.com>2012-07-11T15·08-0400
commit58ef4d9a95584fb89ebcf6222fbac6e698aa6b0b (patch)
tree1e01e79b406f59b06397a24b4b86f1c6fa5fc308 /src/libstore/local-store.cc
parent667d5f1936616dc829f9f92f8e5d5141ba5285a7 (diff)
Add a function queryValidPaths()
queryValidPaths() combines multiple calls to isValidPath() in one.
This matters when using the Nix daemon because it reduces latency.
For instance, on "nix-env -qas \*" it reduces execution time from 5.7s
to 4.7s (which is indistinguishable from the non-daemon case).
Diffstat (limited to 'src/libstore/local-store.cc')
-rw-r--r--src/libstore/local-store.cc9
1 files changed, 9 insertions, 0 deletions
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index 89c5279b1b6e..e3d23fdfbcb7 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -744,6 +744,15 @@ bool LocalStore::isValidPath(const Path & path)
 }
 
 
+PathSet LocalStore::queryValidPaths(const PathSet & paths)
+{
+    PathSet res;
+    foreach (PathSet::const_iterator, i, paths)
+        if (isValidPath(*i)) res.insert(*i);
+    return res;
+}
+
+
 PathSet LocalStore::queryAllValidPaths()
 {
     SQLiteStmt stmt;