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/*
* Distributed under the OSI-approved Apache License, Version 2.0. See
* accompanying file Copyright.txt for details.
*
* FileStream.cpp
*
* Created on: Oct 24, 2016
* Author: William F Godoy godoywf@ornl.gov
*/
#include "FileStream.h"
/// \cond EXCLUDE_FROM_DOXYGEN
#include <ios> // std::ios_base::failure
/// \endcond
namespace adios
{
namespace transport
{
FileStream::FileStream(MPI_Comm mpiComm, const bool debugMode)
: Transport("file", "fstream", mpiComm, debugMode)
{
}
void FileStream::Open(const std::string &name, const OpenMode openMode)
{
m_Name = name;
m_OpenMode = openMode;
if (m_OpenMode == OpenMode::Write || m_OpenMode == OpenMode::w)
{
m_FileStream.open(name, std::fstream::out);
}
else if (m_OpenMode == OpenMode::Append || m_OpenMode == OpenMode::a)
{
// to be changed to rw?
m_FileStream.open(name, std::fstream::out | std::fstream::app);
}
else if (m_OpenMode == OpenMode::Read || m_OpenMode == OpenMode::r)
{
m_FileStream.open(name, std::fstream::in);
}
if (m_DebugMode == true)
{
if (!m_FileStream)
{
throw std::ios_base::failure("ERROR: couldn't open file " + name +
", in call to FileStream Open\n");
}
}
m_IsOpen = true;
}
void FileStream::SetBuffer(char *buffer, size_t size)
{
m_FileStream.rdbuf()->pubsetbuf(buffer, size);
if (m_DebugMode == true)
{
if (!m_FileStream)
{
throw std::ios_base::failure("ERROR: couldn't SetBuffer to file " +
m_Name +
", in call to FileStream SetBuffer\n");
}
}
}
void FileStream::Write(const char *buffer, size_t size)
{
m_FileStream.write(buffer, size);
if (m_DebugMode == true)
{
if (!m_FileStream)
{
throw std::ios_base::failure("ERROR: couldn't write to file " +
m_Name +
", in call to FileStream write\n");
}
}
}
void FileStream::Flush()
{
m_FileStream.flush();
if (m_DebugMode == true)
{
if (!m_FileStream)
{
throw std::ios_base::failure("ERROR: couldn't flush to file " +
m_Name +
", in call to FileStream Flush\n");
}
}
}
void FileStream::Close()
{
m_FileStream.close();
if (m_DebugMode == true)
{
if (!m_FileStream)
{
throw std::ios_base::failure("ERROR: couldn't close file " +
m_Name +
", in call to FileStream Close\n");
}
}
m_IsOpen = false;
}
} // end namespace transport
} // end namespace adios