1 files changed, 63 insertions, 0 deletions
diff --git a/ndb/include/kernel/signaldata/CheckNodeGroups.hpp b/ndb/include/kernel/signaldata/CheckNodeGroups.hpp
new file mode 100644
index 00000000000..9b2f847e128
--- /dev/null
+++ b/ndb/include/kernel/signaldata/CheckNodeGroups.hpp
@@ -0,0 +1,63 @@
+/* Copyright (C) 2003 MySQL AB
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
+
+#ifndef CHECKNODEGROUPS_H
+#define CHECKNODEGROUPS_H
+
+#include <string.h>
+#include <NodeBitmask.hpp>
+#include "SignalData.hpp"
+#include "SignalDataPrint.hpp"
+
+/**
+ * Ask DIH to check if a node set can survive i.e. if it
+ * has at least one node in every node group.  Returns one
+ * of Win, Lose, Partitioning.
+ *
+ * Same class is used for REQ and CONF.  The REQ can also
+ * be executed as a direct signal.
+ */
+class CheckNodeGroups {
+public:
+  Uint32 blockRef;              // sender's node id
+  union {
+    Uint32 requestType;           // direct flag, output code
+    Uint32 output;
+  };
+  union {
+    Uint32 nodeId;             // nodeId input for GetNodeGroupMembers
+    NodeBitmask mask;             /* set of NDB nodes, input for ArbitCheck,
+				   * output for GetNodeGroupMembers
+				   */
+  };
+
+  enum RequestType {
+    Direct              = 0x1,
+    ArbitCheck          = 0x2,
+    GetNodeGroup        = 0x4,
+    GetNodeGroupMembers = 0x8
+  };
+
+  enum Output {
+    Lose = 1,                   // we cannot survive
+    Win = 2,                    // we and only we can survive
+    Partitioning = 3            // possible network partitioning
+  };
+
+  STATIC_CONST( SignalLength = 2 + NodeBitmask::Size );
+};
+
+#endif