MEDfileOpen.c

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00001 /*  This file is part of MED.
00002  *
00003  *  COPYRIGHT (C) 1999 - 2015  EDF R&D, CEA/DEN
00004  *  MED is free software: you can redistribute it and/or modify
00005  *  it under the terms of the GNU Lesser General Public License as published by
00006  *  the Free Software Foundation, either version 3 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  MED is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU Lesser General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU Lesser General Public License
00015  *  along with MED.  If not, see <http://www.gnu.org/licenses/>.
00016  */
00017 
00018 
00019 #include <med.h>
00020 #include <med_config.h>
00021 #include <med_outils.h>
00022 
00023 #ifdef PPRO_NT
00024 #define F_OK 0
00025 #else
00026 #include <unistd.h>
00027 #endif
00028 
00029 
00040 med_idt
00041 MEDfileOpen(const char* const filename,
00042             const med_access_mode accessmode)
00043 {
00044   med_idt _fid = 0;
00045   med_err _ret = -1;
00046 
00047   /*
00048    * On inhibe le gestionnaire d'erreur HDF
00049    */
00050   _MEDmodeErreurVerrouiller();
00051 
00052   /*
00053    * On ouvre le fichier MED sous HDF
00054    */
00055   switch(accessmode)
00056     {
00057     case MED_ACC_RDONLY :
00058       if (access(filename,F_OK)) {
00059         MED_ERR_(_ret,MED_ERR_EXIST,MED_ERR_FILE,filename);
00060         goto ERROR;
00061 
00062       } else {
00063         if ((_fid = _MEDfileOpen((char*) filename,accessmode)) < 0) {
00064           MED_ERR_(_ret,MED_ERR_OPEN,MED_ERR_FILE,filename);
00065           goto ERROR;
00066         }
00067       };
00068       break;
00069 
00070     case MED_ACC_RDWR :
00071       if (access(filename,F_OK)) {
00072         if ((_fid = _MEDfileCreate((char*) filename,accessmode)) < 0) {
00073           MED_ERR_(_ret,MED_ERR_CREATE,MED_ERR_FILE,filename);
00074           goto ERROR;
00075         }
00076       } else
00077         if ((_fid = _MEDfileOpen((char*) filename,accessmode)) < 0) {
00078           MED_ERR_(_ret,MED_ERR_OPEN,MED_ERR_FILE,filename);
00079           goto ERROR;
00080         }
00081       break;
00082 
00083     case MED_ACC_RDEXT :
00084       if (access(filename,F_OK))
00085         {
00086           if ((_fid = _MEDfileCreate((char*) filename,accessmode)) < 0) {
00087             MED_ERR_(_ret,MED_ERR_CREATE,MED_ERR_FILE,filename);
00088             goto ERROR;
00089           }
00090         }
00091       else
00092         if ((_fid = _MEDfileOpen((char *) filename,accessmode)) < 0) {
00093           MED_ERR_(_ret,MED_ERR_OPEN,MED_ERR_FILE,filename);
00094           goto ERROR;
00095         }
00096       break;
00097 
00098     case MED_ACC_CREAT :
00099       if ((_fid = _MEDfileCreate((char *) filename,MED_ACC_RDWR)) < 0) {
00100         MED_ERR_(_ret,MED_ERR_CREATE,MED_ERR_FILE,filename);
00101         goto ERROR;
00102       }
00103       break;
00104 
00105     default :
00106       MED_ERR_(_ret,MED_ERR_INIT,MED_ERR_FILE,filename);
00107       goto ERROR;
00108     }
00109 
00110   _ret=0;
00111  ERROR:
00112 
00113   if (_ret < 0)
00114     _fid = (med_idt) _ret;
00115 
00116   return _fid;
00117 }
00118 

Généré le Thu Oct 8 14:26:16 2015 pour MED fichier par  doxygen 1.6.1