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// C++ informative line for the emacs editor: -*- C++ -*-
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifndef H5File_H
#define H5File_H
namespace H5 {
/*! \class H5File
\brief Class H5File represents an HDF5 file and inherits from class Group
as file is a root group.
*/
// Inheritance: Group -> CommonFG/H5Object -> H5Location -> IdComponent
class H5_DLLCPP H5File : public Group {
public:
// Creates or opens an HDF5 file.
H5File(const char *name, unsigned int flags,
const FileCreatPropList &create_plist = FileCreatPropList::DEFAULT,
const FileAccPropList &access_plist = FileAccPropList::DEFAULT);
H5File(const H5std_string &name, unsigned int flags,
const FileCreatPropList &create_plist = FileCreatPropList::DEFAULT,
const FileAccPropList &access_plist = FileAccPropList::DEFAULT);
H5File(const char *name, unsigned int flags, const FileAccPropList &access_plist);
H5File(const H5std_string &name, unsigned int flags, const FileAccPropList &access_plist);
// Open the file
void openFile(const H5std_string &name, unsigned int flags,
const FileAccPropList &access_plist = FileAccPropList::DEFAULT);
void openFile(const char *name, unsigned int flags,
const FileAccPropList &access_plist = FileAccPropList::DEFAULT);
// Close this file.
virtual void close() override;
// Gets a copy of the access property list of this file.
FileAccPropList getAccessPlist() const;
// Gets a copy of the creation property list of this file.
FileCreatPropList getCreatePlist() const;
// Gets general information about this file.
void getFileInfo(H5F_info2_t &file_info) const;
// Returns the amount of free space in the file.
hssize_t getFreeSpace() const;
// Returns the number of opened object IDs (files, datasets, groups
// and datatypes) in the same file.
ssize_t getObjCount(unsigned types = H5F_OBJ_ALL) const;
// Retrieves a list of opened object IDs (files, datasets, groups
// and datatypes) in the same file.
void getObjIDs(unsigned types, size_t max_objs, hid_t *oid_list) const;
// Returns the pointer to the file handle of the low-level file driver.
void getVFDHandle(void **file_handle) const;
void getVFDHandle(const FileAccPropList &fapl, void **file_handle) const;
// void getVFDHandle(FileAccPropList& fapl, void **file_handle) const; // removed from 1.8.18 and 1.10.1
// Returns the file size of the HDF5 file.
hsize_t getFileSize() const;
// Returns the 'file number' of the HDF5 file.
unsigned long getFileNum() const;
// Determines if a file, specified by its name, is in HDF5 format
static bool isHdf5(const char *name);
static bool isHdf5(const H5std_string &name);
// Determines if a file, specified by its name, can be accessed as HDF5
static bool isAccessible(const char *name,
const FileAccPropList &access_plist = FileAccPropList::DEFAULT);
static bool isAccessible(const H5std_string &name,
const FileAccPropList &access_plist = FileAccPropList::DEFAULT);
// Reopens this file.
void reOpen(); // added for better name
#ifndef DOXYGEN_SHOULD_SKIP_THIS
void reopen(); // obsolete in favor of reOpen()
// Creates an H5File using an existing file id. Not recommended
// in applications.
H5File(hid_t existing_id);
#endif // DOXYGEN_SHOULD_SKIP_THIS
///\brief Returns this class name.
virtual H5std_string
fromClass() const override
{
return ("H5File");
}
// Throw file exception.
virtual void throwException(const H5std_string &func_name, const H5std_string &msg) const override;
// For CommonFG to get the file id.
virtual hid_t getLocId() const override;
// Default constructor
H5File();
// Copy constructor: same as the original H5File.
H5File(const H5File &original);
// Gets the HDF5 file id.
virtual hid_t getId() const override;
// H5File destructor.
virtual ~H5File() override;
protected:
#ifndef DOXYGEN_SHOULD_SKIP_THIS
// Sets the HDF5 file id.
virtual void p_setId(const hid_t new_id) override;
#endif // DOXYGEN_SHOULD_SKIP_THIS
private:
hid_t id; // HDF5 file id
// This function is private and contains common code between the
// constructors taking a string or a char*
void p_get_file(const char *name, unsigned int flags, const FileCreatPropList &create_plist,
const FileAccPropList &access_plist);
}; // end of H5File
} // namespace H5
#endif // H5File_H
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