X-Git-Url: http://git.salome-platform.org/gitweb/?a=blobdiff_plain;f=src%2FMEDLoader%2FMEDFileUtilities.cxx;h=550de4666931984dabf67e993df72e8acf4ca54a;hb=5ea9370443568d9dd6c42c970cbc24c1b6ae6c28;hp=44c4a776bf18d5f80ae91593dde8d951a056a58b;hpb=0fb8ef9bb978b04e475c7f6d9ca5d8bd6f36bcf5;p=tools%2Fmedcoupling.git

diff --git a/src/MEDLoader/MEDFileUtilities.cxx b/src/MEDLoader/MEDFileUtilities.cxx
index 44c4a776b..550de4666 100644
--- a/src/MEDLoader/MEDFileUtilities.cxx
+++ b/src/MEDLoader/MEDFileUtilities.cxx
@@ -19,12 +19,14 @@
 // Author : Anthony Geay (CEA/DEN)
 
 #include "MEDFileUtilities.hxx"
+#include "MEDFileSafeCaller.txx"
 #include "MEDLoaderBase.hxx"
 #include "MEDLoader.hxx"
 
 #include "InterpKernelAutoPtr.hxx"
 
 #include <sstream>
+#include <fstream>
 
 const char MEDCoupling::MEDFileWritableStandAlone::DFT_FILENAME_IN_MEM[]="DftFileNameInMemory";
 
@@ -187,14 +189,28 @@ void MEDCoupling::MEDFileWritableStandAlone::write(const std::string& fileName,
   writeLL(fid);
 }
 
-void MEDCoupling::MEDFileWritableStandAlone::write30(const std::string& fileName, int mode) const
+void MEDCoupling::MEDFileWritableStandAlone::write33(const std::string& fileName, int mode) const
 {
   med_access_mode medmod(MEDFileUtilities::TraduceWriteMode(mode));
-#if MED_NUM_MAJEUR>=3 && MED_NUM_MINEUR>=2 && MED_NUM_RELEASE>=1
-  MEDFileUtilities::AutoFid fid(MEDfileVersionOpen(fileName.c_str(),medmod,3,0,0));
+  static const unsigned char 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+#if MED_NUM_MAJEUR>3
+  med_bool fileexist,accessok;
+  MEDFILESAFECALLERRD0(MEDfileExist,(fileName.c_str(),medmod,&fileexist,&accessok));
+  if(!accessok)
+    {
+      std::ostringstream oss; oss << "MEDFileWritableStandAlone::write33 : requested access to file \"" << fileName << "\" !";
+      throw INTERP_KERNEL::Exception(oss.str());
+    }
+  if(medmod==MED_ACC_CREAT || !fileexist)
+    {
+      std::ofstream ofs(fileName);
+      ofs.write(reinterpret_cast<const char *>(EMPTY_FILE_3_3),sizeof(EMPTY_FILE_3_3));
+      medmod=MEDFileUtilities::TraduceWriteMode(0);
+    }
+  MEDFileUtilities::AutoFid fid(MEDfileVersionOpen(fileName.c_str(),medmod,3,3,1));
   writeLL(fid);
 #else
-  std::ostringstream oss; oss << "MEDFileWritableStandAlone::write30 : is implemented with MEDFile " << MEDFileVersionStr() << " ! If you need this feature please use version >= 3.2.1.";
+  std::ostringstream oss; oss << "MEDFileWritableStandAlone::write33 : is implemented with MEDFile " << MEDFileVersionStr() << " ! If you need this feature please use version >= 3.2.1.";
   throw INTERP_KERNEL::Exception(oss.str());
 #endif
 }
@@ -205,10 +221,20 @@ MEDCoupling::MCAuto<MEDCoupling::DataArrayByte> MEDCoupling::MEDFileWritableStan
   memfile.app_image_ptr=0;
   memfile.app_image_size=0;
   //
-  MEDFileUtilities::AutoFid fid(MEDmemFileOpen(DFT_FILENAME_IN_MEM,&memfile,MED_FALSE,MED_ACC_CREAT));
-  writeLL(fid);
+  std::string dftFileName(GenerateUniqueDftFileNameInMem());
+  {// very important to let this braces ! The AutoFid destructor must be called, to have a "clean" memfile.app_image_ptr pointer embedded in the returned object.
+    MEDFileUtilities::AutoFid fid(MEDmemFileOpen(dftFileName.c_str(),&memfile,MED_FALSE,MED_ACC_CREAT));
+    writeLL(fid);
+  }
   //
   MEDCoupling::MCAuto<MEDCoupling::DataArrayByte> ret(MEDCoupling::DataArrayByte::New());
-  ret->useArray(reinterpret_cast<char *>(memfile.app_image_ptr),true,C_DEALLOC,memfile.app_image_size,1);
+  ret->useArray(reinterpret_cast<char *>(memfile.app_image_ptr),true,DeallocType::C_DEALLOC,memfile.app_image_size,1);
   return ret;
 }
+
+std::string MEDCoupling::MEDFileWritableStandAlone::GenerateUniqueDftFileNameInMem()
+{
+  static int ii=0;
+  std::ostringstream oss; oss << DFT_FILENAME_IN_MEM << "_" << ii++;
+  return oss.str();
+}