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HDF5 C++ API Reference Manual

H5::H5Library Class Reference


Static Public Member Functions
static void	open ()
	Initializes the HDF5 library.
static void	close ()
	Flushes all data to disk, closes files, and cleans up memory.
static void	dontAtExit ()
	Instructs library not to install `atexit` cleanup routine.
static void	getLibVersion (unsigned &majnum, unsigned &minnum, unsigned &relnum)
	Returns the HDF library release number.
static void	checkVersion (unsigned majnum, unsigned minnum, unsigned relnum)
	Verifies that the arguments match the version numbers compiled into the library.
static void	garbageCollect ()
	Walks through all the garbage collection routines for the library, which are supposed to free any unused memory they have allocated.
static void	setFreeListLimits (int reg_global_lim, int reg_list_lim, int arr_global_lim, int arr_list_lim, int blk_global_lim, int blk_list_lim)
	Sets limits on the different kinds of free lists.

Member Function Documentation

void H5::H5Library::open ( ) [static]

Initializes the HDF5 library.

Exceptions:

H5::LibraryIException

void H5::H5Library::close ( ) [static]

Flushes all data to disk, closes files, and cleans up memory.

Exceptions:

H5::LibraryIException

void H5::H5Library::dontAtExit ( ) [static]

Instructs library not to install atexit cleanup routine.

Exceptions:

H5::LibraryIException

void H5::H5Library::getLibVersion	(	unsigned &	majnum,
		unsigned &	minnum,
		unsigned &	relnum
	)			`[static]`

Returns the HDF library release number.

Parameters:

	majnum	- OUT: Major version of the library
	minnum	- OUT: Minor version of the library
	relnum	- OUT: Release number of the library

Exceptions:

H5::LibraryIException

void H5::H5Library::checkVersion	(	unsigned	majnum,
		unsigned	minnum,
		unsigned	relnum
	)			`[static]`

Verifies that the arguments match the version numbers compiled into the library.

Parameters:

	majnum	- IN: Major version of the library
	minnum	- IN: Minor version of the library
	relnum	- IN: Release number of the library

Exceptions:

H5::LibraryIException

Description: For information about library version, please refer to the C layer Reference Manual at: http://www.hdfgroup.org/HDF5/doc/RM/RM_H5.html#Library-VersCheck

void H5::H5Library::garbageCollect ( ) [static]

Walks through all the garbage collection routines for the library, which are supposed to free any unused memory they have allocated.

Exceptions:

H5::LibraryIException

Description: It is not required that H5Library::garbageCollect be called at any particular time; it is only necessary in certain situations, such as when the application has performed actions that cause the library to allocate many objects. The application should call H5Library::garbageCollect if it eventually releases those objects and wants to reduce the memory used by the library from the peak usage required.

: The library automatically garbage collects all the free lists when the application ends.

void H5::H5Library::setFreeListLimits	(	int	reg_global_lim,
		int	reg_list_lim,
		int	arr_global_lim,
		int	arr_list_lim,
		int	blk_global_lim,
		int	blk_list_lim
	)			`[static]`

Sets limits on the different kinds of free lists.

Parameters:

	reg_global_lim	- IN: Limit on all "regular" free list memory used
	reg_list_lim	- IN: Limit on memory used in each "regular" free list
	arr_global_lim	- IN: Limit on all "array" free list memory used
	arr_list_lim	- IN: Limit on memory used in each "array" free list
	blk_global_lim	- IN: Limit on all "block" free list memory used
	blk_list_lim	- IN: Limit on memory used in each "block" free list

Exceptions:

H5::LibraryIException

Description: Setting a value of -1 for a limit means no limit of that type. For more information on free list limits, please refer to C layer Reference Manual at: http://www.hdfgroup.org/HDF5/doc/RM/RM_H5.html#Library-SetFreeListLimits

H5::H5Library Class Reference