Line data    Source code

       1             : /* +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
       2             :    Copyright (c) 2011-2018 The plumed team
       3             :    (see the PEOPLE file at the root of the distribution for a list of names)
       4             : 
       5             :    See http://www.plumed.org for more information.
       6             : 
       7             :    This file is part of plumed, version 2.
       8             : 
       9             :    plumed is free software: you can redistribute it and/or modify
      10             :    it under the terms of the GNU Lesser General Public License as published by
      11             :    the Free Software Foundation, either version 3 of the License, or
      12             :    (at your option) any later version.
      13             : 
      14             :    plumed is distributed in the hope that it will be useful,
      15             :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      16             :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17             :    GNU Lesser General Public License for more details.
      18             : 
      19             :    You should have received a copy of the GNU Lesser General Public License
      20             :    along with plumed.  If not, see <http://www.gnu.org/licenses/>.
      21             : +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ */
      22             : #include "PlumedMain.h"
      23             : #include "tools/Exception.h"
      24             : #include <cstdlib>
      25             : 
      26             : using namespace std;
      27             : 
      28             : // !!!!!!!!!!!!!!!!!!!!!!    DANGER   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!11
      29             : // THE FOLLOWING ARE UTILITIES WHICH ARE NECESSARY FOR DYNAMIC LOADING OF THE PLUMED KERNEL:
      30             : // This section should be consistent with the Plumed.h file.
      31             : // Since the Plumed.h file may be included in host MD codes, **NEVER** MODIFY THE CODE IN THIS FILE
      32             : // unless you know exactly what you are doing
      33             : 
      34             : /**
      35             :   Container for plumedmain function pointers (create, cmd and finalize).
      36             : */
      37             : typedef struct {
      38             :   void*(*create)();
      39             :   void(*cmd)(void*,const char*,const void*);
      40             :   void(*finalize)(void*);
      41             : } plumed_plumedmain_function_holder;
      42             : 
      43             : /* These functions should be accessible from C, since they might be statically
      44             :    used from Plumed.c (for static binding) */
      45             : 
      46        1152 : extern "C" void*plumedmain_create() {
      47        1152 :   return new PLMD::PlumedMain;
      48             : }
      49             : 
      50      195264 : extern "C" void plumedmain_cmd(void*plumed,const char*key,const void*val) {
      51      195264 :   plumed_massert(plumed,"trying to use a plumed object which is not initialized");
      52      195264 :   static_cast<PLMD::PlumedMain*>(plumed)->cmd(key,val);
      53      195264 : }
      54             : 
      55        1152 : extern "C" void plumedmain_finalize(void*plumed) {
      56        1152 :   plumed_massert(plumed,"trying to deallocate a plumed object which is not initialized");
      57        1152 :   delete static_cast<PLMD::PlumedMain*>(plumed);
      58        1152 : }
      59             : 
      60             : /* This refers to a function implemented in Plumed.c */
      61             : extern "C" plumed_plumedmain_function_holder* plumed_kernel_register(const plumed_plumedmain_function_holder*);
      62             : 
      63             : namespace PLMD {
      64             : 
      65             : /// Static object which registers Plumed.
      66             : /// This is a static object which, during its construction at startup,
      67             : /// registers the pointers to plumedmain_create, plumedmain_cmd and plumedmain_finalize
      68             : /// to the plumed_kernel_register function
      69             : static class PlumedMainInitializer {
      70             : public:
      71         841 :   PlumedMainInitializer() {
      72         841 :     plumed_plumedmain_function_holder fh= {plumedmain_create,plumedmain_cmd,plumedmain_finalize};
      73         841 :     plumed_kernel_register(&fh);
      74         841 :   }
      75         841 : } RegisterMe;
      76             : 
      77        2523 : }
      78             : 
      79             :