Refactor PYTHON package and wrapper classes

src/python.cpp

@@ -0,0 +1,99 @@
+/* ----------------------------------------------------------------------
+   LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
+   http://lammps.sandia.gov, Sandia National Laboratories
+   Steve Plimpton, sjplimp@sandia.gov
+
+   Copyright (2003) Sandia Corporation.  Under the terms of Contract
+   DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
+   certain rights in this software.  This software is distributed under
+   the GNU General Public License.
+
+   See the README file in the top-level LAMMPS directory.
+------------------------------------------------------------------------- */
+
+#include "python.h"
+#include "error.h"
+
+using namespace LAMMPS_NS;
+
+/* ---------------------------------------------------------------------- */
+
+Python::Python(LAMMPS *lmp) : Pointers(lmp)
+{
+  // implementation of Python interface is only loaded on demand
+  // and only if PYTHON package has been installed and compiled into binary
+  impl = NULL;
+}
+
+/* ---------------------------------------------------------------------- */
+
+Python::~Python()
+{
+  delete impl;
+}
+
+/* ---------------------------------------------------------------------- */
+
+PythonInterface::~PythonInterface()
+{
+}
+
+/* ---------------------------------------------------------------------- */
+
+void Python::init()
+{
+#if LMP_PYTHON
+  impl = new PythonImpl(lmp);
+#else
+  error->all(FLERR,"Python support missing! Compile with PYTHON package installed!");
+#endif
+}
+
+/* ---------------------------------------------------------------------- */
+bool Python::is_enabled() const {
+#if LMP_PYTHON
+  return true;
+#else
+  return false;
+#endif
+}
+
+/* ---------------------------------------------------------------------- */
+
+void Python::command(int narg, char **arg)
+{
+  if(!impl) init();
+  impl->command(narg, arg);
+}
+
+/* ------------------------------------------------------------------ */
+
+void Python::invoke_function(int ifunc, char *result)
+{
+  if(!impl) init();
+  impl->invoke_function(ifunc, result);
+}
+
+/* ------------------------------------------------------------------ */
+
+int Python::find(char *name)
+{
+  if(!impl) init();
+  return impl->find(name);
+}
+
+/* ------------------------------------------------------------------ */
+
+int Python::variable_match(char *name, char *varname, int numeric)
+{
+  if(!impl) init();
+  return impl->variable_match(name, varname, numeric);
+}
+
+/* ------------------------------------------------------------------ */
+
+char * Python::long_string(int ifunc)
+{
+  if(!impl) init();
+  return impl->long_string(ifunc);
+}