Line data    Source code

       1             : /* +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
       2             :    Copyright (c) 2012-2020 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 "FileBase.h"
      23             : #include "Exception.h"
      24             : #include "core/Action.h"
      25             : #include "core/PlumedMain.h"
      26             : #include "core/Value.h"
      27             : #include "Communicator.h"
      28             : #include "Tools.h"
      29             : #include <cstdarg>
      30             : #include <cstring>
      31             : #include <cstdlib>
      32             : 
      33             : #include <iostream>
      34             : #include <string>
      35             : 
      36             : #ifdef __PLUMED_HAS_ZLIB
      37             : #include <zlib.h>
      38             : #endif
      39             : 
      40             : namespace PLMD {
      41             : 
      42         691 : FileBase& FileBase::link(FILE*fp) {
      43         691 :   plumed_massert(!this->fp,"cannot link an already open file");
      44         691 :   this->fp=fp;
      45         691 :   cloned=true;
      46         691 :   return *this;
      47             : }
      48             : 
      49        4110 : FileBase& FileBase::flush() {
      50        4110 :   if(fp) fflush(fp);
      51        4110 :   return *this;
      52             : }
      53             : 
      54        6670 : FileBase& FileBase::link(Communicator&comm) {
      55        6670 :   plumed_massert(!fp,"cannot link an already open file");
      56        6670 :   this->comm=&comm;
      57        6670 :   return *this;
      58             : }
      59             : 
      60        3899 : FileBase& FileBase::link(PlumedMain&plumed) {
      61        3899 :   plumed_massert(!fp,"cannot link an already open file");
      62        3899 :   this->plumed=&plumed;
      63        3899 :   link(plumed.comm);
      64        3899 :   return *this;
      65             : }
      66             : 
      67        3249 : FileBase& FileBase::link(Action&action) {
      68        3249 :   plumed_massert(!fp,"cannot link an already open file");
      69        3249 :   this->action=&action;
      70        3249 :   link(action.plumed);
      71        3249 :   return *this;
      72             : }
      73             : 
      74        1452 : bool FileBase::FileExist(const std::string& path) {
      75             :   bool do_exist=false;
      76        4356 :   this->path=appendSuffix(path,getSuffix());
      77        1452 :   mode="r";
      78        1452 :   FILE *ff=std::fopen(const_cast<char*>(this->path.c_str()),"r");
      79        1452 :   if(!ff) {
      80             :     this->path=path;
      81         512 :     ff=std::fopen(const_cast<char*>(this->path.c_str()),"r");
      82             :     mode="r";
      83             :   }
      84        1452 :   if(ff) {do_exist=true; fclose(ff);}
      85        1452 :   if(comm) comm->Barrier();
      86        1452 :   return do_exist;
      87             : }
      88             : 
      89        9523 : bool FileBase::isOpen() {
      90             :   bool isopen=false;
      91        9523 :   if(fp) isopen=true;
      92        9523 :   return isopen;
      93             : }
      94             : 
      95        1661 : void        FileBase::close() {
      96        1661 :   plumed_assert(!cloned);
      97        1661 :   eof=false;
      98        1661 :   err=false;
      99        1661 :   if(fp)   std::fclose(fp);
     100             : #ifdef __PLUMED_HAS_ZLIB
     101        1661 :   if(gzfp) gzclose(gzFile(gzfp));
     102             : #endif
     103        1661 :   fp=NULL;
     104        1661 :   gzfp=NULL;
     105        1661 : }
     106             : 
     107        7495 : FileBase::FileBase():
     108             :   fp(NULL),
     109             :   gzfp(NULL),
     110             :   comm(NULL),
     111             :   plumed(NULL),
     112             :   action(NULL),
     113             :   cloned(false),
     114             :   eof(false),
     115             :   err(false),
     116             :   heavyFlush(false),
     117       22485 :   enforcedSuffix_(false)
     118             : {
     119        7495 : }
     120             : 
     121       14990 : FileBase::~FileBase()
     122             : {
     123        7495 :   if(plumed) plumed->eraseFile(*this);
     124        7495 :   if(!cloned && fp)   fclose(fp);
     125             : #ifdef __PLUMED_HAS_ZLIB
     126        7495 :   if(!cloned && gzfp) gzclose(gzFile(gzfp));
     127             : #endif
     128        7495 : }
     129             : 
     130     2458608 : FileBase::operator bool()const {
     131     2458608 :   return !eof;
     132             : }
     133             : 
     134        5498 : std::string FileBase::appendSuffix(const std::string&path,const std::string&suffix) {
     135        5498 :   if(path=="/dev/null") return path; // do not append a suffix to /dev/null
     136             :   std::string ret=path;
     137        5324 :   std::string ext=Tools::extension(path);
     138             : 
     139             : // These are the recognized extensions so far:
     140             : // gz xtc trr
     141             : // If a file name ends with one of these extensions, the suffix is added *before*
     142             : // the extension. This is useful when extensions are conventionally used
     143             : // to detect file type, so as to allow easier file manipulation.
     144             : // Removing this line, any extension recognized by Tools::extension() would be considered
     145             : //  if(ext!="gz" && ext!="xtc" && ext!="trr") ext="";
     146             : 
     147        5324 :   if(ext.length()>0) {
     148        3837 :     int l=path.length()-(ext.length()+1);
     149        3837 :     plumed_assert(l>=0);
     150        7674 :     ret=ret.substr(0,l);
     151             :   }
     152             :   ret+=suffix;
     153        9161 :   if(ext.length()>0)ret+="."+ext;
     154             :   return ret;
     155             : }
     156             : 
     157         226 : FileBase& FileBase::enforceSuffix(const std::string&suffix) {
     158         226 :   enforcedSuffix_=true;
     159         226 :   enforcedSuffix=suffix;
     160         226 :   return *this;
     161             : }
     162             : 
     163        4443 : std::string FileBase::getSuffix()const {
     164        4443 :   if(enforcedSuffix_) return enforcedSuffix;
     165        4213 :   if(plumed) return plumed->getSuffix();
     166         374 :   return "";
     167             : }
     168             : 
     169        5517 : }