Line data    Source code

       1             : /* +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
       2             :    Copyright (c) 2011-2019 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 "DLLoader.h"
      23             : 
      24             : #ifdef __PLUMED_HAS_DLOPEN
      25             : #include <dlfcn.h>
      26             : #endif
      27             : 
      28             : namespace PLMD {
      29             : 
      30           2 : bool DLLoader::installed() {
      31             : #ifdef __PLUMED_HAS_DLOPEN
      32           2 :   return true;
      33             : #else
      34             :   return false;
      35             : #endif
      36             : }
      37             : 
      38             : 
      39           2 : void* DLLoader::load(const std::string&s) {
      40             : #ifdef __PLUMED_HAS_DLOPEN
      41           2 :   void* p=dlopen(s.c_str(),RTLD_NOW|RTLD_LOCAL);
      42           2 :   if(!p) {
      43           1 :     lastError=dlerror();
      44             :   } else {
      45           1 :     lastError="";
      46             :     handles.push(p);
      47             :   }
      48           2 :   return p;
      49             : #else
      50             :   return NULL;
      51             : #endif
      52             : }
      53             : 
      54           1 : const std::string & DLLoader::error() {
      55           1 :   return lastError;
      56             : }
      57             : 
      58        7660 : DLLoader::~DLLoader() {
      59             : #ifdef __PLUMED_HAS_DLOPEN
      60        3831 :   while(!handles.empty()) {
      61           1 :     dlclose(handles.top());
      62             :     handles.pop();
      63             :   }
      64             : #endif
      65        3830 : }
      66             : 
      67        3830 : DLLoader::DLLoader() {
      68             :   // do nothing
      69        3830 : }
      70             : 
      71             : 
      72             : }