Minor doc: isIota()

[tools/medcoupling.git] / src / MEDLoader / MEDFileUtilities.cxx

diff --git a/src/MEDLoader/MEDFileUtilities.cxx b/src/MEDLoader/MEDFileUtilities.cxx
index 201388f6a59f2bfeaf58832c42afa371795b99c1..46354964f2f511c37c54053e887a2d5dfb3f8786 100644 (file)
--- a/src/MEDLoader/MEDFileUtilities.cxx
+++ b/src/MEDLoader/MEDFileUtilities.cxx
@@ -20,6 +20,7 @@
 
 #include "MEDFileUtilities.hxx"
 #include "MEDLoaderBase.hxx"
+#include "MEDLoader.hxx"
 
 #include "InterpKernelAutoPtr.hxx"
 
@@ -189,9 +190,13 @@ void MEDCoupling::MEDFileWritableStandAlone::write(const std::string& fileName,
 void MEDCoupling::MEDFileWritableStandAlone::write30(const std::string& fileName, int mode) const
 {
   med_access_mode medmod(MEDFileUtilities::TraduceWriteMode(mode));
-  throw INTERP_KERNEL::Exception("MEDFileWritableStandAlone::write30 : will be implemented with MEDFile >= 3.2.1 !");
-  //MEDFileUtilities::AutoFid fid(MEDfileVersionOpen(fileName.c_str(),medmod,3,0,0));
-  //writeLL(fid);
+#if MED_NUM_MAJEUR>=3 && MED_NUM_MINEUR>=2 && MED_NUM_RELEASE>=1
+  MEDFileUtilities::AutoFid fid(MEDfileVersionOpen(fileName.c_str(),medmod,3,0,0));
+  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.";
+  throw INTERP_KERNEL::Exception(oss.str());
+#endif
 }
 
 MEDCoupling::MCAuto<MEDCoupling::DataArrayByte> MEDCoupling::MEDFileWritableStandAlone::serialize() const
@@ -200,10 +205,20 @@ 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);
   return ret;
 }
+
+std::string MEDCoupling::MEDFileWritableStandAlone::GenerateUniqueDftFileNameInMem()
+{
+  static int ii=0;
+  std::ostringstream oss; oss << DFT_FILENAME_IN_MEM << "_" << ii++;
+  return oss.str();
+}