new MESSAGE package for client/server/coupling

lib/message/cslib/src/msg.h

@@ -0,0 +1,52 @@
+/* ----------------------------------------------------------------------
+   CSlib - Client/server library for code coupling
+   http://cslib.sandia.gov, Sandia National Laboratories
+   Steve Plimpton, sjplimp@sandia.gov
+
+   Copyright 2018 National Technology & Engineering Solutions of
+   Sandia, LLC (NTESS). Under the terms of Contract DE-NA0003525 with
+   NTESS, the U.S. Government retains certain rights in this software.
+   This software is distributed under the GNU Lesser General Public
+   License (LGPL).
+
+   See the README file in the top-level CSlib directory.
+------------------------------------------------------------------------- */
+
+#ifndef MSG_H
+#define MSG_H
+
+#include <mpi.h>
+
+namespace CSLIB_NS {
+
+class Msg {
+ public:
+  int nsend,nrecv;
+  MPI_Comm world;
+
+  Msg(int, const void *, MPI_Comm);
+  Msg(int, const void *);
+  virtual ~Msg() {}
+  virtual void send(int, int *, int, char *) = 0;
+  virtual void recv(int &, int *&, int &, char *&) = 0;
+
+ protected:
+  int me,nprocs;
+  int client,server;
+
+  int nfield;
+  int *fieldID,*fieldtype,*fieldlen;
+  int lengths[2];
+  
+  void init(int);
+  void allocate(int, int &, int *&, int, int &, char *&);
+  void *smalloc(int);
+  void sfree(void *);
+  void error_all(const char *);
+  void error_one(const char *);
+};
+
+
+}
+
+#endif