lib: replace some uses of Query::MatchAll with a thread-safe alternative

[notmuch] / util / xapian-extra.h

diff --git a/util/xapian-extra.h b/util/xapian-extra.h
new file mode 100644 (file)
index 0000000..39c7f48
--- /dev/null
+++ b/util/xapian-extra.h
@@ -0,0 +1,15 @@
+#ifndef _XAPIAN_EXTRA_H
+#define _XAPIAN_EXTRA_H
+
+#include <string>
+#include <xapian.h>
+
+inline Xapian::Query
+xapian_query_match_all (void)
+{
+    // Xapian::Query::MatchAll isn't thread safe (a static object with reference
+    // counting) so instead reconstruct the equivalent on demand.
+    return Xapian::Query (std::string ());
+}
+
+#endif