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-rw-r--r--src/libstore/gc.cc8
-rw-r--r--src/libstore/local-store.cc13
2 files changed, 13 insertions, 8 deletions
diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc
index 7d58cd50afae..b8395bfc4352 100644
--- a/src/libstore/gc.cc
+++ b/src/libstore/gc.cc
@@ -421,7 +421,7 @@ struct LocalStore::GCState
 };
 
 
-static bool doDelete(GCOptions::GCAction action)
+static bool shouldDelete(GCOptions::GCAction action)
 {
     return action == GCOptions::gcDeleteDead
         || action == GCOptions::gcDeleteSpecific;
@@ -438,6 +438,8 @@ bool LocalStore::isActiveTempFile(const GCState & state,
     
 bool LocalStore::tryToDelete(GCState & state, const Path & path)
 {
+    checkInterrupt();
+    
     if (!pathExists(path)) return true;
     if (state.deleted.find(path) != state.deleted.end()) return true;
     if (state.live.find(path) != state.live.end()) return false;
@@ -516,7 +518,7 @@ bool LocalStore::tryToDelete(GCState & state, const Path & path)
     }
 
     /* The path is garbage, so delete it. */
-    if (doDelete(state.options.action)) {
+    if (shouldDelete(state.options.action)) {
         printMsg(lvlInfo, format("deleting `%1%'") % path);
 
         unsigned long long bytesFreed, blocksFreed;
@@ -625,7 +627,7 @@ void LocalStore::collectGarbage(const GCOptions & options, GCResults & results)
         vector<Path> entries_(entries.begin(), entries.end());
         random_shuffle(entries_.begin(), entries_.end());
 
-        if (doDelete(state.options.action))
+        if (shouldDelete(state.options.action))
             printMsg(lvlError, format("deleting garbage..."));
         else
             printMsg(lvlError, format("determining live/dead paths..."));
diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index c0c1461b4974..c0c75e34d502 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -298,11 +298,10 @@ void LocalStore::openDB(bool create)
     if (sqlite3_exec(db, ("pragma synchronous = " + syncMode + ";").c_str(), 0, 0, 0) != SQLITE_OK)
         throw SQLiteError(db, "setting synchronous mode");
 
-    /* Set the SQLite journal mode.  The default is write-ahead
-       logging since it's the fastest and supports more concurrency.
-       The downside is that it doesn't work over NFS, so allow
-       truncate mode alternatively. */
-    string mode = queryBoolSetting("use-sqlite-wal", true) ? "wal" : "truncate";
+    /* Set the SQLite journal mode.  WAL mode is fastest, but doesn't
+       seem entirely stable at the moment (Oct. 2010).  Thus, use
+       truncate mode by default. */
+    string mode = queryBoolSetting("use-sqlite-wal", false) ? "wal" : "truncate";
     string prevMode;
     {
         SQLiteStmt stmt;
@@ -1220,6 +1219,8 @@ void LocalStore::deleteFromStore(const Path & path, unsigned long long & bytesFr
 
     assertStorePath(path);
 
+    SQLiteTxn txn(db);
+
     if (isValidPath(path)) {
         PathSet referrers; queryReferrers(path, referrers);
         referrers.erase(path); /* ignore self-references */
@@ -1230,6 +1231,8 @@ void LocalStore::deleteFromStore(const Path & path, unsigned long long & bytesFr
     }
 
     deletePathWrapped(path, bytesFreed, blocksFreed);
+
+    txn.commit();
 }