Add util piggyback_to_RecordComposition

diff --git a/include/metaproxy/util.hpp b/include/metaproxy/util.hpp
index 0365919..e5d2768 100644 (file)
--- a/include/metaproxy/util.hpp
+++ b/include/metaproxy/util.hpp
@@ -104,6 +104,9 @@ namespace metaproxy_1 {
         void get_default_diag(Z_DefaultDiagFormat *r,
                               int &error_code, std::string &addinfo);
 
+        Z_RecordComposition *piggyback_to_RecordComposition(
+            ODR odr, Odr_int result_set_size, Z_SearchRequest *sreq);
+ 
         void piggyback(int smallSetUpperBound,
                        int largeSetLowerBound,
                        int mediumSetPresentNumber,

diff --git a/src/util.cpp b/src/util.cpp
index 81a27f0..4a3d478 100644 (file)
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -163,6 +163,26 @@ std::string mp_util::database_name_normalize(const std::string &s)
 
 }
 
+Z_RecordComposition *mp_util::piggyback_to_RecordComposition(
+    ODR odr, Odr_int result_set_size, Z_SearchRequest *sreq)
+{
+    Z_RecordComposition *comp = 0;
+    Odr_int present_dummy;
+    const char *element_set_name = 0;
+    mp::util::piggyback_sr(sreq, result_set_size,
+                           present_dummy, &element_set_name);
+    if (element_set_name)
+    {
+        comp  = (Z_RecordComposition *) odr_malloc(odr, sizeof(*comp));
+        comp->which = Z_RecordComp_simple;
+        comp->u.simple = (Z_ElementSetNames *)
+            odr_malloc(odr, sizeof(Z_ElementSetNames));
+        comp->u.simple->which = Z_ElementSetNames_generic;
+        comp->u.simple->u.generic = odr_strdup(odr, element_set_name);
+    }
+    return comp;
+}
+
 void mp_util::piggyback_sr(Z_SearchRequest *sreq,
                            Odr_int result_set_size,
                            Odr_int &number_to_present,