Initial import of the CDE 2.1.30 sources from the Open Group.

cde/programs/dtinfo/DtMmdb/oliasdb/c_api_dlp.C

@@ -0,0 +1,76 @@
+// $XConsortium: c_api_dlp.cc /main/4 1996/06/11 17:27:07 cde-hal $
+
+#include "oliasdb/c_api_common.h"
+
+static dlp_smart_ptr*
+getDlpUsingProid(DtMmdbInfoRequest* request)
+{
+   try {
+      info_base* x = getBookCase(request -> bookcase_descriptor);
+      if ( x == 0 ) return 0;
+
+      oid_t * id = getPrimiaryOid(request);
+
+      if ( id ) {
+         return new dlp_smart_ptr(x, *id);
+      }
+
+      return 0;
+   }
+
+   catch (mmdbException &,e)
+   {
+     return 0;
+   } end_try;
+     return 0;
+}
+
+DtMmdbHandle*
+DtMmdbDlpGetPrevSectionId(DtMmdbInfoRequest* request)
+{
+   try {
+      dlp_smart_ptr* x = getDlpUsingProid(request);
+      if ( x == 0 ) return 0;
+      DtMmdbHandle *z = 0;
+
+      if ( x -> prev_node_oid() == ground )
+        z = DtMmdbGroundId;
+      else
+        z = newDtMmdbHandle(x -> prev_node_oid());
+
+      delete x;
+      return z;
+   }
+
+   catch (mmdbException &,e)
+   {
+     return 0;
+   } end_try;
+     return 0;
+}
+
+DtMmdbHandle*
+DtMmdbDlpGetNextSectionId(DtMmdbInfoRequest* request)
+{
+   try {
+      dlp_smart_ptr* x = getDlpUsingProid(request);
+      if ( x == 0 ) return 0;
+
+      DtMmdbHandle *z = 0;
+
+      if ( x -> next_node_oid() == ground)
+        z = DtMmdbGroundId;
+      else
+        z = newDtMmdbHandle(x -> next_node_oid());
+
+      delete x;
+      return z;
+   }
+
+   catch (mmdbException &,e)
+   {
+     return 0;
+   } end_try;
+     return 0;
+}
+