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hdf5/c++/src/H5DxferProp.cpp
Larry Knox 2ea165efd0 Update license url part2 (#333) 
* Modify temporary rpath for testing in java example scripts.

* Update URL in source file Copyright headers for web copy of COPYING
    file - files not in src or test.
2021-02-17 08:52:36 -06:00

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <string>
#include "H5private.h" // for HDmemset
#include "H5Include.h"
#include "H5Exception.h"
#include "H5IdComponent.h"
#include "H5PropList.h"
#include "H5DxferProp.h"
namespace H5 {
#ifndef DOXYGEN_SHOULD_SKIP_THIS
// This DOXYGEN_SHOULD_SKIP_THIS block is a work-around approach to control
// the order of creation and deletion of the global constants. See Design Notes
// in "H5PredType.cpp" for information.
// Initialize a pointer for the constant
DSetMemXferPropList *DSetMemXferPropList::DEFAULT_ = 0;
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getConstant
// Creates a DSetMemXferPropList object representing the HDF5
// constant H5P_DATASET_XFER, pointed to by
// DSetMemXferPropList::DEFAULT_
// exception H5::PropListIException
// Description
// If DSetMemXferPropList::DEFAULT_ already points to an allocated
// object, throw a PropListIException. This scenario should not
// happen.
// Programmer Binh-Minh Ribler - 2015
//--------------------------------------------------------------------------
DSetMemXferPropList *
DSetMemXferPropList::getConstant()
{
// Tell the C library not to clean up, H5Library::termH5cpp will call
// H5close - more dependency if use H5Library::dontAtExit()
if (!IdComponent::H5dontAtexit_called) {
(void)H5dont_atexit();
IdComponent::H5dontAtexit_called = true;
}
// If the constant pointer is not allocated, allocate it. Otherwise,
// throw because it shouldn't be.
if (DEFAULT_ == 0)
DEFAULT_ = new DSetMemXferPropList(H5P_DATASET_XFER);
else
throw PropListIException(
"DSetMemXferPropList::getConstant",
"DSetMemXferPropList::getConstant is being invoked on an allocated DEFAULT_");
return (DEFAULT_);
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::deleteConstants
// Purpose: Deletes the constant object that DSetMemXferPropList::DEFAULT_
// points to.
// Programmer Binh-Minh Ribler - 2015
//--------------------------------------------------------------------------
void
DSetMemXferPropList::deleteConstants()
{
if (DEFAULT_ != 0)
delete DEFAULT_;
}
//--------------------------------------------------------------------------
// Purpose Constant for default dataset memory and transfer property list.
//--------------------------------------------------------------------------
const DSetMemXferPropList &DSetMemXferPropList::DEFAULT = *getConstant();
#endif // DOXYGEN_SHOULD_SKIP_THIS
//--------------------------------------------------------------------------
// Function DSetMemXferPropList default constructor
///\brief Default constructor: creates a stub dataset memory and
/// transfer property list object.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
DSetMemXferPropList::DSetMemXferPropList() : PropList(H5P_DATASET_XFER) {}
//--------------------------------------------------------------------------
// Function DSetMemXferPropList constructor
///\brief Creates a dataset transfer property list with transform
/// expression.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
DSetMemXferPropList::DSetMemXferPropList(const char *exp) : PropList(H5P_DATASET_XFER)
{
setDataTransform(exp);
}
//--------------------------------------------------------------------------
// Function DSetMemXferPropList copy constructor
///\brief Copy constructor: same HDF5 object as \a original
/// DSetMemXferPropList object
///\param original - IN: Original dataset memory and transfer property
/// list object to copy
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
DSetMemXferPropList::DSetMemXferPropList(const DSetMemXferPropList &original) : PropList(original) {}
//--------------------------------------------------------------------------
// Function DSetMemXferPropList overloaded constructor
///\brief Creates a DSetMemXferPropList object using the id of an
/// existing DSetMemXferPropList.
///\param plist_id - IN: Id of an existing dataset memory and transfer
/// property list
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
DSetMemXferPropList::DSetMemXferPropList(const hid_t plist_id) : PropList(plist_id) {}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setBuffer
///\brief Sets type conversion and background buffers.
///\param size - IN: Size, in bytes, of the type conversion and background buffers
///\param tconv - IN: Pointer to application-allocated type conversion buffer
///\param bkg - IN: Pointer to application-allocated background buffer
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setBuffer(size_t size, void *tconv, void *bkg) const
{
herr_t ret_value = H5Pset_buffer(id, size, tconv, bkg);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setBuffer", "H5Pset_buffer failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getBuffer
///\brief Reads buffer settings.
///\param tconv - OUT: Pointer to application-allocated type conversion buf
///\param bkg - OUT: Pointer to application-allocated background buffer
///\return Buffer size, in bytes
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
size_t
DSetMemXferPropList::getBuffer(void **tconv, void **bkg) const
{
size_t buffer_size = H5Pget_buffer(id, tconv, bkg);
if (buffer_size == 0) {
throw PropListIException("DSetMemXferPropList::getBuffer",
"H5Pget_buffer returned 0 for buffer size - failure");
}
return (buffer_size);
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setPreserve
///\brief Sets the dataset transfer property list status to true or false.
///\param status - IN: Status to set, true or false
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setPreserve(bool status) const
{
herr_t ret_value = H5Pset_preserve(id, (hbool_t)status);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setPreserve", "H5Pset_preserve failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getPreserve
///\brief Checks status of the dataset transfer property list.
///\return Status of the dataset transfer property list
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
bool
DSetMemXferPropList::getPreserve() const
{
int ret_value = H5Pget_preserve(id);
if (ret_value > 0)
return true;
else if (ret_value == 0)
return false;
else {
throw PropListIException("DSetMemXferPropList::getPreserve",
"H5Pget_preserve returned negative value for status");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setBtreeRatios
///\brief Sets B-tree split ratios for a dataset transfer property list.
///\param left - IN: B-tree split ratio for left-most nodes
///\param middle - IN: B-tree split ratio for right-most nodes and lone nodes
///\param right - IN: B-tree split ratio for all other nodes
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setBtreeRatios(double left, double middle, double right) const
{
herr_t ret_value = H5Pset_btree_ratios(id, left, middle, right);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setBtreeRatios", "H5Pset_btree_ratios failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getBtreeRatios
///\brief Gets B-tree split ratios for a dataset transfer property list.
///\param left - OUT: B-tree split ratio for left-most nodes
///\param middle - OUT: B-tree split ratio for right-most nodes and lone nodes
///\param right - OUT: B-tree split ratio for all other nodes
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void
DSetMemXferPropList::getBtreeRatios(double &left, double &middle, double &right) const
{
herr_t ret_value = H5Pget_btree_ratios(id, &left, &middle, &right);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::getBtreeRatios", "H5Pget_btree_ratios failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setDataTransform
///\brief Sets data transform expression.
///\param expression - IN: null-terminated data transform expression (char*)
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - Mar, 2014
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setDataTransform(const char *expression) const
{
herr_t ret_value = H5Pset_data_transform(id, expression);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setDataTransform", "H5Pset_data_transform failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setDataTransform
///\brief This is an overloaded member function, provided for convenience.
/// It takes a reference to a \c H5std_string for the expression.
///\param expression - IN: H5std_string data transform expression
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - Mar, 2014
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setDataTransform(const H5std_string &expression) const
{
setDataTransform(expression.c_str());
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getDataTransform
///\brief Sets data transform expression.
///\param exp - OUT: buffer for data transform expression (char*)
///\param buf_size - IN: size of buffer for expression, including the
/// null terminator
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - Mar, 2014
//--------------------------------------------------------------------------
ssize_t
DSetMemXferPropList::getDataTransform(char *exp, size_t buf_size) const
{
// H5Pget_data_transform will get buf_size characters of the expression
// including the null terminator
ssize_t exp_len;
exp_len = H5Pget_data_transform(id, exp, buf_size);
// H5Pget_data_transform returns a negative value, raise an exception
if (exp_len < 0) {
throw PropListIException("DSetMemXferPropList::getDataTransform", "H5Pget_data_transform failed");
}
// H5Pget_data_transform will put a null terminator at the end of the
// expression or at [buf_size-1] if the expression is at least the size
// of the buffer.
// Return the expression length, which might be different from buf_size
return (exp_len);
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getDataTransform
///\brief This is an overloaded member function, provided for convenience.
/// It takes no parameter and returns a \c H5std_string for the expression.
///
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - Mar, 2014
//--------------------------------------------------------------------------
H5std_string
DSetMemXferPropList::getDataTransform() const
{
// Initialize string to "", so that if there is no expression, the returned
// string will be empty
H5std_string expression("");
// Preliminary call to get the expression's length
ssize_t exp_len = H5Pget_data_transform(id, NULL, (size_t)0);
// If H5Pget_data_transform returns a negative value, raise an exception
if (exp_len < 0) {
throw PropListIException("DSetMemXferPropList::getDataTransform", "H5Pget_data_transform failed");
}
// If expression exists, calls C routine again to get it
else if (exp_len > 0) {
// Temporary buffer for char* expression
char *exp_C = new char[exp_len + 1];
HDmemset(exp_C, 0, exp_len + 1); // clear buffer
// Used overloaded function
exp_len = getDataTransform(exp_C, exp_len + 1);
// Convert the C expression to return
expression = exp_C;
// Clean up resource
delete[] exp_C;
}
// Return the string expression
return (expression);
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getTypeConvCB
///\brief Sets an exception handling callback for datatype conversion
/// for a dataset transfer property list.
///\param op - IN: User's function
///\param user_data - IN: User's data
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - April, 2004
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setTypeConvCB(H5T_conv_except_func_t op, void *user_data) const
{
herr_t ret_value = H5Pset_type_conv_cb(id, op, user_data);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setTypeConvCB", "H5Pset_type_conv_cb failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getTypeConvCB
///\brief Gets the exception handling callback function and data.
///\param op - IN: Retrieved user function
///\param user_data - IN: Retrieved user data
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - April, 2004
//--------------------------------------------------------------------------
void
DSetMemXferPropList::getTypeConvCB(H5T_conv_except_func_t *op, void **user_data) const
{
herr_t ret_value = H5Pget_type_conv_cb(id, op, user_data);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::getTypeConvCB", "H5Pget_type_conv_cb failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setVlenMemManager
///\brief Sets the memory manager for variable-length datatype allocation.
///\param alloc_func - IN: User's allocate routine
///\param alloc_info - IN: User's allocation parameters
///\param free_func - IN: User's free routine
///\param free_info - IN: User's free parameters
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setVlenMemManager(H5MM_allocate_t alloc_func, void *alloc_info, H5MM_free_t free_func,
void *free_info) const
{
herr_t ret_value = H5Pset_vlen_mem_manager(id, alloc_func, alloc_info, free_func, free_info);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setVlenMemManager", "H5Pset_vlen_mem_manager failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setVlenMemManager
///\brief Sets the memory manager for variable-length datatype
/// allocation - system \c malloc and \c free will be used.
///
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setVlenMemManager() const
{
setVlenMemManager(NULL, NULL, NULL, NULL);
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getVlenMemManager
///\brief Gets the memory manager for variable-length datatype allocation
///\param alloc_func - OUT: User's allocate routine
///\param alloc_info - OUT: User's allocation parameters
///\param free_func - OUT: User's free routine
///\param free_info - OUT: User's free parameters
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void
DSetMemXferPropList::getVlenMemManager(H5MM_allocate_t &alloc_func, void **alloc_info, H5MM_free_t &free_func,
void **free_info) const
{
herr_t ret_value = H5Pget_vlen_mem_manager(id, &alloc_func, alloc_info, &free_func, free_info);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::getVlenMemManager", "H5Pget_vlen_mem_manager failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setSmallDataBlockSize
///\brief Sets the size of a contiguous block reserved for small data.
///\param size - IN: Maximum size, in bytes, of the small data block.
///\exception H5::PropListIException
///\par Description
/// For detail, please refer to the H5Pset_small_data_block_size
/// API in the HDF5 C Reference Manual.
// Programmer Binh-Minh Ribler - April, 2004
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setSmallDataBlockSize(hsize_t size) const
{
herr_t ret_value = H5Pset_small_data_block_size(id, size);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setSmallDataBlockSize",
"H5Pset_small_data_block_size failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getSmallDataBlockSize
///\brief Returns the current small data block size setting.
///\return Size of the small data block, in bytes
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - April, 2004
//--------------------------------------------------------------------------
hsize_t
DSetMemXferPropList::getSmallDataBlockSize() const
{
hsize_t size;
herr_t ret_value = H5Pget_small_data_block_size(id, &size);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::getSmallDataBlockSize",
"H5Pget_small_data_block_size failed");
}
return (size);
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setHyperVectorSize
///\brief Sets number of I/O vectors to be read/written in hyperslab I/O.
///
///\exception H5::PropListIException
///\par Description
/// For detail, please refer to the H5Pset_hyper_vector_size
/// API in the HDF5 C Reference Manual.
// Programmer Binh-Minh Ribler - April, 2004
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setHyperVectorSize(size_t vector_size) const
{
herr_t ret_value = H5Pset_hyper_vector_size(id, vector_size);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setHyperVectorSize",
"H5Pset_hyper_vector_size failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getHyperVectorSize
///\brief Returns the number of I/O vectors to be read/written in
/// hyperslab I/O.
///\return Number of I/O vectors
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - April, 2004
//--------------------------------------------------------------------------
size_t
DSetMemXferPropList::getHyperVectorSize() const
{
size_t vector_size;
herr_t ret_value = H5Pget_hyper_vector_size(id, &vector_size);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::getHyperVectorSize",
"H5Pget_hyper_vector_size failed");
}
return (vector_size);
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::setEDCCheck
///\brief Enables or disables error-detecting for a dataset reading
/// process.
///\param check - IN: Specifies whether error detection is enabled or
/// disabled
///\exception H5::PropListIException
///\par Description
/// The error detection algorithm used is the algorithm previously
/// specified in the corresponding dataset creation property
/// list. This function does not affect the use of error
/// detection in the writing process.
///\par
/// Valid values are as follows:
/// \li \c H5Z_ENABLE_EDC (default)
/// \li \c H5Z_DISABLE_EDC
// Programmer Binh-Minh Ribler - April, 2004
//--------------------------------------------------------------------------
void
DSetMemXferPropList::setEDCCheck(H5Z_EDC_t check) const
{
herr_t ret_value = H5Pset_edc_check(id, check);
if (ret_value < 0) {
throw PropListIException("DSetMemXferPropList::setEDCCheck", "H5Pset_edc_check failed");
}
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList::getEDCCheck
///\brief Determines whether error-detection is enabled for dataset reads.
///\return \c H5Z_ENABLE_EDC or \c H5Z_DISABLE_EDC
///\exception H5::PropListIException
// Programmer Binh-Minh Ribler - April, 2004
//--------------------------------------------------------------------------
H5Z_EDC_t
DSetMemXferPropList::getEDCCheck() const
{
H5Z_EDC_t check = H5Pget_edc_check(id);
if (check < 0) {
throw PropListIException("DSetMemXferPropList::getEDCCheck", "H5Pget_edc_check failed");
}
return (check);
}
//--------------------------------------------------------------------------
// Function: DSetMemXferPropList destructor
///\brief Noop destructor.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
DSetMemXferPropList::~DSetMemXferPropList() {}
} // namespace H5
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