icedb::Databases::file_image Class Reference

#include <Database_impl.hpp>

Collaboration diagram for icedb::Databases::file_image:

Public Member Functions
std::shared_ptr< H5::H5File >	getHFile () const
	file_image (const std::string &filename, size_t desiredSizeInBytes)
	~file_image ()

Private Attributes
hid_t	propertyList
std::vector< char >	buffer
const std::string	filename
std::shared_ptr< H5::H5File >	hFile

Detailed Description

Definition at line 7 of file Database_impl.hpp.

Constructor & Destructor Documentation

file_image()

icedb::Databases::file_image::file_image	(	const std::string &	filename,
		size_t	desiredSizeInBytes
	)

Definition at line 17 of file databases.cpp.

References buffer, hFile, and propertyList.

                    : buffer(desiredSizeInBytes), filename(filename),
                    propertyList(-1), hFile(nullptr)
                {
                    propertyList = H5Pcreate(H5P_FILE_ACCESS);
                    const auto h5Result = H5Pset_fapl_core(propertyList, buffer.size(), false);
                    Expects(h5Result >= 0 && "H5Pset_fapl_core failed");
                    // This new memory-only dataset needs to always be writable. The flags parameter
                    // has little meaning in this context.
                    hFile = std::make_shared<H5::H5File>(filename.c_str(), H5F_ACC_TRUNC, H5P_DEFAULT, propertyList);
                    //m_file = H5Fcreate(filename.c_str(), H5F_ACC_TRUNC, H5P_DEFAULT, propertyList);
                }

~file_image()

icedb::Databases::file_image::~file_image

(

)

Definition at line 30 of file databases.cpp.

References propertyList.

                                {
                    if (propertyList != -1) H5Pclose(propertyList);
                }

Member Function Documentation

getHFile()

std::shared_ptr< H5::H5File > icedb::Databases::file_image::getHFile

(

)

const

Definition at line 16 of file databases.cpp.

References hFile.

{ return hFile; }

Member Data Documentation

buffer

std::vector<char> icedb::Databases::file_image::buffer

private

Definition at line 9 of file Database_impl.hpp.

Referenced by file_image().

filename

const std::string icedb::Databases::file_image::filename

private

Definition at line 10 of file Database_impl.hpp.

hFile

std::shared_ptr<H5::H5File> icedb::Databases::file_image::hFile

private

Definition at line 11 of file Database_impl.hpp.

Referenced by icedb::Databases::Database_impl::createGroup(), file_image(), getHFile(), and icedb::Databases::Database_impl::openGroup().

propertyList

hid_t icedb::Databases::file_image::propertyList

private

Definition at line 8 of file Database_impl.hpp.

Referenced by file_image(), and ~file_image().

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The documentation for this class was generated from the following files:

• lib/private/Database_impl.hpp
• lib/src/databases.cpp