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Creation of file

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This commit is contained in:
paboyle 2018-03-30 12:30:58 +01:00
parent c5a885dcd6
commit 2f5add4d5f
1 changed files with 7 additions and 3 deletions
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10
lib/parallelIO/BinaryIO.h
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@ -372,7 +372,7 @@ class BinaryIO {
std::cout << GridLogMessage <<"IOobject: C++ read I/O " << file << " : " std::cout << GridLogMessage <<"IOobject: C++ read I/O " << file << " : "
<< iodata.size() * sizeof(fobj) << " bytes" << std::endl; << iodata.size() * sizeof(fobj) << " bytes" << std::endl;
std::ifstream fin; std::ifstream fin;
fin.open(file, std::ios::binary | std::ios::in); fin.open(file, std::ios::binary | std::ios::in);
if (control & BINARYIO_MASTER_APPEND) if (control & BINARYIO_MASTER_APPEND)
{ {
fin.seekg(-sizeof(fobj), fin.end); fin.seekg(-sizeof(fobj), fin.end);
@ -453,11 +453,15 @@ class BinaryIO {
std::ofstream fout; std::ofstream fout;
fout.exceptions ( std::fstream::failbit | std::fstream::badbit ); fout.exceptions ( std::fstream::failbit | std::fstream::badbit );
try { try {
fout.open(file,std::ios::binary|std::ios::out|std::ios::in); if (offset) { // Must already exist and contain data
fout.open(file,std::ios::binary|std::ios::out|std::ios::in);
} else { // Allow create
fout.open(file,std::ios::binary|std::ios::out);
}
} catch (const std::fstream::failure& exc) { } catch (const std::fstream::failure& exc) {
std::cout << GridLogError << "Error in opening the file " << file << " for output" <<std::endl; std::cout << GridLogError << "Error in opening the file " << file << " for output" <<std::endl;
std::cout << GridLogError << "Exception description: " << exc.what() << std::endl; std::cout << GridLogError << "Exception description: " << exc.what() << std::endl;
std::cout << GridLogError << "Probable cause: wrong path, inaccessible location "<< std::endl; // std::cout << GridLogError << "Probable cause: wrong path, inaccessible location "<< std::endl;
#ifdef USE_MPI_IO #ifdef USE_MPI_IO
MPI_Abort(MPI_COMM_WORLD,1); MPI_Abort(MPI_COMM_WORLD,1);
#else #else