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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <string>
#include "H5Include.h"
#include "H5Exception.h"
#include "H5IdComponent.h"
#include "H5PropList.h"
#include "H5LaccProp.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
LinkAccPropList *LinkAccPropList::DEFAULT_ = 0;
//--------------------------------------------------------------------------
// Function: LinkAccPropList::getConstant
// Creates a LinkAccPropList object representing the HDF5 constant
// H5P_LINK_ACCESS, pointed to by LinkAccPropList::DEFAULT_
// exception H5::PropListIException
// Description
// If LinkAccPropList::DEFAULT_ already points to an allocated
// object, throw a PropListIException. This scenario should not
// happen.
//--------------------------------------------------------------------------
LinkAccPropList *
LinkAccPropList::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 LinkAccPropList(H5P_LINK_ACCESS);
else
throw PropListIException("LinkAccPropList::getConstant",
"LinkAccPropList::getConstant is being invoked on an allocated DEFAULT_");
return (DEFAULT_);
}
//--------------------------------------------------------------------------
// Function: LinkAccPropList::deleteConstants
// Purpose: Deletes the constant object that LinkAccPropList::DEFAULT_
// points to.
// exception H5::PropListIException
//--------------------------------------------------------------------------
void
LinkAccPropList::deleteConstants()
{
delete DEFAULT_;
}
//--------------------------------------------------------------------------
// Purpose: Constant for default property
//--------------------------------------------------------------------------
const LinkAccPropList &LinkAccPropList::DEFAULT = *getConstant();
#endif // DOXYGEN_SHOULD_SKIP_THIS
//--------------------------------------------------------------------------
// Function: Default Constructor
///\brief Creates a file access property list
//--------------------------------------------------------------------------
LinkAccPropList::LinkAccPropList() : PropList(H5P_LINK_ACCESS)
{
}
//--------------------------------------------------------------------------
// Function: LinkAccPropList copy constructor
///\brief Copy Constructor: same HDF5 object as \a original
///\param original - IN: LinkAccPropList instance to copy
//--------------------------------------------------------------------------
LinkAccPropList::LinkAccPropList(const LinkAccPropList &original) : PropList(original)
{
}
//--------------------------------------------------------------------------
// Function: LinkAccPropList overloaded constructor
///\brief Creates a file access property list using the id of an
/// existing one.
//--------------------------------------------------------------------------
LinkAccPropList::LinkAccPropList(const hid_t plist_id) : PropList(plist_id)
{
}
//--------------------------------------------------------------------------
// Function: LinkAccPropList::setNumLinks
///\brief Set the number of soft or user-defined link traversals allowed
/// before the library assumes it has found a cycle and aborts the
/// traversal.
///
///\exception H5::PropListIException
//--------------------------------------------------------------------------
void
LinkAccPropList::setNumLinks(size_t nlinks) const
{
herr_t ret_value = H5Pset_nlinks(id, nlinks);
// Throw exception if H5Pset_nlinks returns failure
if (ret_value < 0) {
throw PropListIException("setNumLinks", "H5Pset_nlinks failed");
}
}
//--------------------------------------------------------------------------
// Function: LinkAccPropList::getNumLinks
///\brief Gets the number of soft or user-defined links that can be
/// traversed before a failure occurs.
///
///\exception H5::PropListIException
//--------------------------------------------------------------------------
size_t
LinkAccPropList::getNumLinks() const
{
size_t nlinks = 0;
herr_t ret_value = H5Pget_nlinks(id, &nlinks);
// Throw exception if H5Pget_nlinks returns failure
if (ret_value < 0) {
throw PropListIException("getNumLinks", "H5Pget_nlinks failed");
}
return (nlinks);
}
//--------------------------------------------------------------------------
// Function: LinkAccPropList destructor
///\brief Noop destructor
//--------------------------------------------------------------------------
LinkAccPropList::~LinkAccPropList()
{
}
} // namespace H5
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