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Diffstat (limited to 'c++/src/H5Location.cpp')
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diff --git a/c++/src/H5Location.cpp b/c++/src/H5Location.cpp new file mode 100644 index 0000000..b2fa75d --- /dev/null +++ b/c++/src/H5Location.cpp @@ -0,0 +1,1686 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * 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://support.hdfgroup.org/ftp/HDF5/releases. * + * 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 "H5DataSpace.h" +#include "H5PropList.h" +#include "H5FaccProp.h" +#include "H5FcreatProp.h" +#include "H5OcreatProp.h" +#include "H5DcreatProp.h" +#include "H5DxferProp.h" +#include "H5LaccProp.h" +#include "H5Location.h" +#include "H5Object.h" +#include "H5DataType.h" +#include "H5AbstractDs.h" +#include "H5DataSet.h" +#include "H5CommonFG.h" +#include "H5Group.h" +#include "H5File.h" + +namespace H5 { + +#ifndef DOXYGEN_SHOULD_SKIP_THIS +//-------------------------------------------------------------------------- +// Function: H5Location default constructor (protected) +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +H5Location::H5Location() : IdComponent() {} + +//-------------------------------------------------------------------------- +// Function: H5Location overloaded constructor (protected) +// Purpose Creates an H5Location object using the id of an existing HDF5 +// object. +// Parameters object_id - IN: Id of an existing HDF5 object +// Programmer Binh-Minh Ribler - 2000 + +// *** Deprecation warning *** +// This constructor is no longer appropriate because the data member "id" had +// been moved to the sub-classes. It will be removed in 1.10 release. If its +// removal does not raise any problems in 1.10, it will be removed from 1.8 in +// subsequent releases. +// Removed in 1.10.1 - Aug 2016 +//-------------------------------------------------------------------------- +// H5Location::H5Location(const hid_t object_id) : IdComponent() {} + +//-------------------------------------------------------------------------- +// Function: H5Location copy constructor +// Purpose This noop copy constructor is removed as a result of the data +// member "id" being moved down to sub-classes. (Mar 2015) +///\param original - IN: H5Location instance to copy +// Programmer Binh-Minh Ribler - 2000 +// +// *** Deprecation warning *** +// This constructor is no longer appropriate because the data member "id" had +// been moved to the sub-classes. It is removed from 1.8.15 because it is +// a noop and it can be generated by the compiler if needed. +//-------------------------------------------------------------------------- +// H5Location::H5Location(const H5Location& original) : IdComponent() {} + +#endif // DOXYGEN_SHOULD_SKIP_THIS + +//-------------------------------------------------------------------------- +// Function: H5Location::exists +///\brief Checks if a link of a given name exists in a location +///\param name - IN: Searched name +///\param lapl - IN: Link access property list +///\exception H5::LocationException +// Programmer Binh-Minh Ribler - Nov, 2016 +// Modification +//-------------------------------------------------------------------------- +bool H5Location::exists(const char* name, const LinkAccPropList& lapl) const +{ + htri_t ret_value = H5Lexists(getId(), name, lapl.getId()); + if (ret_value > 0) + return true; + else if (ret_value == 0) + return false; + else // Raise exception when H5Lexists returns a negative value + { + throwException("exists", "H5Lexists failed"); + } +} + +//-------------------------------------------------------------------------- +// Function: H5Location::exists +///\brief Checks if a link of a given name exists in a location +///\param name - IN: Searched name +///\param lapl - IN: Link access property list +///\exception H5::LocationException +// Programmer Binh-Minh Ribler - Dec, 2016 +// Modification +//-------------------------------------------------------------------------- +bool H5Location::exists(const H5std_string& name, const LinkAccPropList& lapl) const +{ + return(exists(name.c_str(), lapl)); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::flush +///\brief Flushes all buffers associated with a location to disk. +///\param scope - IN: Specifies the scope of the flushing action, +/// which can be either of these values: +/// \li \c H5F_SCOPE_GLOBAL - Flushes the entire virtual file +/// \li \c H5F_SCOPE_LOCAL - Flushes only the specified file +///\exception H5::Exception +///\par Description +/// This location is used to identify the file to be flushed. +// Programmer Binh-Minh Ribler - 2012 +// Modification +// Sep 2012 - BMR +// Moved from H5File/H5Object +//-------------------------------------------------------------------------- +void H5Location::flush(H5F_scope_t scope) const +{ + herr_t ret_value = H5Fflush(getId(), scope); + if (ret_value < 0) + { + throw LocationException(inMemFunc("flush"), "H5Fflush failed"); + } +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getFileName +///\brief Gets the name of the file, in which this HDF5 object belongs. +///\return File name +///\exception H5::LocationException +// Programmer Binh-Minh Ribler - Jul, 2004 +//-------------------------------------------------------------------------- +H5std_string H5Location::getFileName() const +{ + try { + return(p_get_file_name()); + } + catch (LocationException& E) { + throw FileIException(inMemFunc("getFileName"), E.getDetailMsg()); + } +} + +//-------------------------------------------------------------------------- +// Function: H5Location::setComment +///\brief Sets or resets the comment for an object specified by its name. +///\param name - IN: Name of the object +///\param comment - IN: New comment +///\exception H5::LocationException +///\par Description +/// If \a comment is an empty string or a null pointer, the comment +/// message is removed from the object. +/// Comments should be relatively short, null-terminated, ASCII +/// strings. They can be attached to any object that has an +/// object header, e.g., data sets, groups, named data types, +/// and data spaces, but not symbolic links. +// Programmer Binh-Minh Ribler - 2000 (moved from CommonFG, Sep 2013) +// Modification +// 2007: QAK modified to use H5O APIs; however the first parameter is +// no longer just file or group, this function should be moved +// to another class to accommodate attribute, dataset, and named +// datatype. - BMR +//-------------------------------------------------------------------------- +void H5Location::setComment(const char* name, const char* comment) const +{ + herr_t ret_value = H5Oset_comment_by_name(getId(), name, comment, H5P_DEFAULT); + if (ret_value < 0) + throw LocationException(inMemFunc("setComment"), "H5Oset_comment_by_name failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::setComment +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name and \a comment. +// Programmer Binh-Minh Ribler - 2000 (moved from CommonFG, Sep 2013) +//-------------------------------------------------------------------------- +void H5Location::setComment(const H5std_string& name, const H5std_string& comment) const +{ + setComment(name.c_str(), comment.c_str()); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::setComment +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it doesn't take +/// an object name. +// Programmer Binh-Minh Ribler - Sep 2013 +// Modification +//-------------------------------------------------------------------------- +void H5Location::setComment(const char* comment) const +{ + herr_t ret_value = H5Oset_comment_by_name(getId(), ".", comment, H5P_DEFAULT); + if (ret_value < 0) + throw LocationException(inMemFunc("setComment"), "H5Oset_comment_by_name failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::setComment +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a comment. +// Programmer Binh-Minh Ribler - Sep 2013 +//-------------------------------------------------------------------------- +void H5Location::setComment(const H5std_string& comment) const +{ + setComment(comment.c_str()); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::removeComment +///\brief Removes the comment from an object specified by its name. +///\param name - IN: Name of the object +///\exception H5::LocationException +// Programmer Binh-Minh Ribler - May 2005 (moved from CommonFG, Sep 2013) +// 2007: QAK modified to use H5O APIs; however the first parameter is +// no longer just file or group, this function should be moved +// to another class to accommodate attribute, dataset, and named +// datatype. - BMR +//-------------------------------------------------------------------------- +void H5Location::removeComment(const char* name) const +{ + herr_t ret_value = H5Oset_comment_by_name(getId(), name, NULL, H5P_DEFAULT); + if (ret_value < 0) + throw LocationException(inMemFunc("removeComment"), "H5Oset_comment_by_name failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::removeComment +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - May 2005 (moved from CommonFG, Sep 2013) +//-------------------------------------------------------------------------- +void H5Location::removeComment(const H5std_string& name) const +{ + removeComment (name.c_str()); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getComment +///\brief Retrieves the comment for this location, returning its length. +///\param name - IN: Name of the object +///\param buf_size - IN: Length of the comment to retrieve +///\param comment - OUT: Retrieved comment +///\return Actual length of the comment +///\exception H5::LocationException +///\par Description +/// This function retrieves \a buf_size characters of the comment +/// including the null terminator. Thus, if the actual length +/// of the comment is more than buf_size-1, the retrieved comment +/// will be truncated to accommodate the null terminator. +// Programmer Binh-Minh Ribler - Mar 2014 +//-------------------------------------------------------------------------- +ssize_t H5Location::getComment(const char* name, size_t buf_size, char* comment) const +{ + // H5Oget_comment_by_name will get buf_size chars of the comment including + // the null terminator + ssize_t comment_len; + comment_len = H5Oget_comment_by_name(getId(), name, comment, buf_size, H5P_DEFAULT); + + // If H5Oget_comment_by_name returns a negative value, raise an exception + if (comment_len < 0) + { + throw LocationException("H5Location::getComment", "H5Oget_comment_by_name failed"); + } + // If the comment is longer than the provided buffer size, the C library + // will not null terminate it + if (static_cast<size_t>(comment_len) >= buf_size) + comment[buf_size-1] = '\0'; + + // Return the actual comment length, which might be different from buf_size + return(comment_len); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getComment +///\brief Returns the comment as \a string for this location, +/// returning its length. +///\param name - IN: Name of the object +///\param buf_size - IN: Length of the comment to retrieve, default to 0 +///\return Comment string +///\exception H5::LocationException +// Programmer Binh-Minh Ribler - 2000 (moved from CommonFG, Sep 2013) +//-------------------------------------------------------------------------- +H5std_string H5Location::getComment(const char* name, size_t buf_size) const +{ + // Initialize string to "", so that if there is no comment, the returned + // string will be empty + H5std_string comment(""); + + // Preliminary call to get the comment's length + ssize_t comment_len = H5Oget_comment_by_name(getId(), name, NULL, (size_t)0, H5P_DEFAULT); + + // If H5Oget_comment_by_name returns a negative value, raise an exception + if (comment_len < 0) + { + throw LocationException("H5Location::getComment", "H5Oget_comment_by_name failed"); + } + + // If comment exists, calls C routine again to get it + else if (comment_len > 0) + { + size_t tmp_len = buf_size; + + // If buffer size is not provided, use comment length + if (tmp_len == 0) + tmp_len = comment_len; + + // Temporary buffer for char* comment + char* comment_C = new char[tmp_len+1]; + HDmemset(comment_C, 0, tmp_len+1); // clear buffer + + // Used overloaded function + ssize_t temp_len = getComment(name, tmp_len+1, comment_C); + if (temp_len < 0) + { + delete []comment_C; + throw LocationException("H5Location::getComment", "H5Oget_comment_by_name failed"); + } + + // Convert the C comment to return + comment = comment_C; + + // Clean up resource + delete []comment_C; + } + + // Return the string comment + return(comment); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getComment +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 (moved from CommonFG, Sep 2013) +//-------------------------------------------------------------------------- +H5std_string H5Location::getComment(const H5std_string& name, size_t buf_size) const +{ + return(getComment(name.c_str(), buf_size)); +} +#ifndef DOXYGEN_SHOULD_SKIP_THIS + +//-------------------------------------------------------------------------- +// Function: H5Location::p_reference (protected) +// Purpose Creates a reference to an HDF5 object or a dataset region. +// Parameters +// name - IN: Name of the object to be referenced +// dataspace - IN: Dataspace with selection +// ref_type - IN: Type of reference; default to \c H5R_DATASET_REGION +// Exception H5::ReferenceException +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +void H5Location::p_reference(void* ref, const char* name, hid_t space_id, H5R_type_t ref_type) const +{ + herr_t ret_value = H5Rcreate(ref, getId(), name, ref_type, space_id); + if (ret_value < 0) + { + throw ReferenceException(inMemFunc("reference"), "H5Rcreate failed"); + } +} + +//-------------------------------------------------------------------------- +// Function: H5Location::p_dereference (protected) +// Purpose Dereference a ref into an hdf5 object. +// Parameters +// loc_id - IN: An hdf5 identifier specifying the location of the +// referenced object +// ref - IN: Reference pointer +// ref_type - IN: Reference type +// plist - IN: Property list - default to PropList::DEFAULT +// from_func - IN: Name of the calling function +// Exception H5::ReferenceException +// Programmer Binh-Minh Ribler - Oct, 2006 +// Modification +// May 2008 - BMR +// Moved from IdComponent. +//-------------------------------------------------------------------------- +hid_t H5Location::p_dereference(hid_t loc_id, const void* ref, H5R_type_t ref_type, const PropList& plist, const char* from_func) +{ + hid_t plist_id; + if (p_valid_id(plist.getId())) + plist_id = plist.getId(); + else + plist_id = H5P_DEFAULT; + + hid_t temp_id = H5Rdereference2(loc_id, plist_id, ref_type, ref); + if (temp_id < 0) + { + throw ReferenceException(inMemFunc(from_func), "H5Rdereference failed"); + } + + return(temp_id); +} +#endif // DOXYGEN_SHOULD_SKIP_THIS + +//-------------------------------------------------------------------------- +// Function: H5Location::reference +///\brief Creates a reference to an HDF5 object or a dataset region. +///\param ref - IN: Reference pointer +///\param name - IN: Name of the object to be referenced +///\param dataspace - IN: Dataspace with selection +///\param ref_type - IN: Type of reference to query, valid values are: +/// \li \c H5R_OBJECT - Reference is an object reference. +/// \li \c H5R_DATASET_REGION - Reference is a dataset region +/// reference. (default) +///\exception H5::ReferenceException +///\note This method is more suitable for a dataset region reference. +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +void H5Location::reference(void* ref, const char* name, const DataSpace& dataspace, H5R_type_t ref_type) const +{ + try { + p_reference(ref, name, dataspace.getId(), ref_type); + } + catch (ReferenceException& E) { + throw ReferenceException(inMemFunc("reference"), E.getDetailMsg()); + } +} + +//-------------------------------------------------------------------------- +// Function: H5Location::reference +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +///\param ref - IN: Reference pointer +///\param name - IN: Name of the object to be referenced +///\param dataspace - IN: Dataspace with selection +///\param ref_type - IN: Type of reference to query, valid values are: +/// \li \c H5R_OBJECT - Reference is an object reference. +/// \li \c H5R_DATASET_REGION - Reference is a dataset region +/// reference. (default) +///\exception H5::ReferenceException +///\note This method is more suitable for a dataset region reference. +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +void H5Location::reference(void* ref, const H5std_string& name, const DataSpace& dataspace, H5R_type_t ref_type) const +{ + try { + p_reference(ref, name.c_str(), dataspace.getId(), ref_type); + } + catch (ReferenceException& E) { + throw ReferenceException(inMemFunc("reference"), E.getDetailMsg()); + } +} + +//-------------------------------------------------------------------------- +// Function: H5Location::reference +///\brief This is an overloaded function, provided for your convenience. +/// It differs from the above function in that it does not take +/// a DataSpace object and the reference type must be specified. +///\param ref - IN: Reference pointer +///\param name - IN: Name of the object to be referenced +///\param ref_type - IN: Type of reference to query, valid values are: +/// \li \c H5R_OBJECT - Reference is an object reference (default) +/// \li \c H5R_DATASET_REGION - Reference is a dataset region +///\exception H5::ReferenceException +///\note This method is more suitable for an object reference. +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +void H5Location::reference(void* ref, const char* name, H5R_type_t ref_type) const +{ + try { + p_reference(ref, name, -1, ref_type); + } + catch (ReferenceException& E) { + throw ReferenceException(inMemFunc("reference"), E.getDetailMsg()); + } +} + +//-------------------------------------------------------------------------- +// Function: H5Location::reference +///\brief This is an overloaded function, provided for your convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for the object's name. +///\param ref - IN: Reference pointer +///\param name - IN: Name of the object to be referenced - \c H5std_string +///\param ref_type - IN: Type of reference to query, valid values are: +/// \li \c H5R_OBJECT - Reference is an object reference (default) +/// \li \c H5R_DATASET_REGION - Reference is a dataset region +///\note This method is more suitable for an object reference. +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +void H5Location::reference(void* ref, const H5std_string& name, H5R_type_t ref_type) const +{ + reference(ref, name.c_str(), ref_type); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::dereference +///\brief Dereferences a reference into an HDF5 object, given an HDF5 object. +///\param loc - IN: Location of the referenced object +///\param ref - IN: Reference pointer +///\param ref_type - IN: Reference type +///\param plist - IN: Property list - default to PropList::DEFAULT +///\exception H5::ReferenceException +// Programmer Binh-Minh Ribler - Oct, 2006 +// Modification +// May, 2008 +// Corrected missing parameters. - BMR +//-------------------------------------------------------------------------- +void H5Location::dereference(const H5Location& loc, const void* ref, H5R_type_t ref_type, const PropList& plist) +{ + p_setId(p_dereference(loc.getId(), ref, ref_type, plist, "dereference")); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::dereference +// brief Dereferences a reference into an HDF5 object, given an attribute. +// param attr - IN: Attribute specifying the location of the referenced object +// param ref - IN: Reference pointer +// param ref_type - IN: Reference type +// param plist - IN: Property list - default to PropList::DEFAULT +// exception H5::ReferenceException +// Programmer Binh-Minh Ribler - Oct, 2006 +// Modification +// May, 2008 +// Corrected missing parameters. -BMR +// Mar, 2017 +// Removed in 1.10.1 because H5Location is Attribute's baseclass +// now. -BMR +//-------------------------------------------------------------------------- + /* void H5Location::dereference(const Attribute& attr, const void* ref, H5R_type_t ref_type, const PropList& plist) +{ + p_setId(p_dereference(attr.getId(), ref, ref_type, plist, "dereference")); +} + */ + + +//-------------------------------------------------------------------------- +// Function: H5Location::getRefObjType +///\brief Retrieves the type of object that an object reference points to. +///\param ref - IN: Reference to query +///\param ref_type - IN: Type of reference to query, valid values are: +/// \li \c H5R_OBJECT - Reference is an object reference. +/// \li \c H5R_DATASET_REGION - Reference is a dataset region reference. +///\return An object type, which can be one of the following: +/// \li \c H5O_TYPE_UNKNOWN - Unknown object type (-1) +/// \li \c H5O_TYPE_GROUP - Object is a group +/// \li \c H5O_TYPE_DATASET - Object is a dataset +/// \li \c H5O_TYPE_NAMED_DATATYPE - Object is a named datatype +/// \li \c H5O_TYPE_NTYPES - Number of different object types +///\exception H5::ReferenceException +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +H5O_type_t H5Location::getRefObjType(void *ref, H5R_type_t ref_type) const +{ + try { + return(p_get_ref_obj_type(ref, ref_type)); + } + catch (ReferenceException& E) { + throw ReferenceException(inMemFunc("getRefObjType"), E.getDetailMsg()); + } +} + +#ifndef DOXYGEN_SHOULD_SKIP_THIS +//-------------------------------------------------------------------------- +// Function: H5Location::p_get_ref_obj_type (protected) +// Purpose Retrieves the type of object that an object reference points to. +// Parameters +// ref - IN: Reference to query +// ref_type - IN: Type of reference to query +// Return An object type, which can be one of the following: +// H5O_TYPE_UNKNOWN - Unknown object type (-1) +// H5O_TYPE_GROUP - Object is a group +// H5O_TYPE_DATASET - Object is a dataset +// H5O_TYPE_NAMED_DATATYPE - Object is a named datatype +// H5O_TYPE_NTYPES - Number of object types +// Exception H5::ReferenceException +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +H5O_type_t H5Location::p_get_ref_obj_type(void *ref, H5R_type_t ref_type) const +{ + H5O_type_t obj_type = H5O_TYPE_UNKNOWN; + herr_t ret_value = H5Rget_obj_type2(getId(), ref_type, ref, &obj_type); + if (ret_value < 0) + { + throw ReferenceException(inMemFunc("getRefObjType"), "H5Rget_obj_type2 failed"); + } + if (obj_type == H5O_TYPE_UNKNOWN || obj_type >= H5O_TYPE_NTYPES) + { + throw ReferenceException(inMemFunc("getRefObjType"), "H5Rget_obj_type2 returned invalid type"); + } + return(obj_type); +} +#endif // DOXYGEN_SHOULD_SKIP_THIS + +//-------------------------------------------------------------------------- +// Function: H5Location::getRegion +///\brief Retrieves a dataspace with the region pointed to selected. +///\param ref - IN: Reference to get region of +///\param ref_type - IN: Type of reference to get region of - default +// to H5R_DATASET_REGION +///\return DataSpace object +///\exception H5::ReferenceException +// Programmer Binh-Minh Ribler - May, 2004 +// Modification +// Mar 29, 2015 +// Used friend function to set id for DataSpace instead of the +// existing id constructor or the setId method to avoid incrementing +// ref count, as a work-around for a problem described in the JIRA +// issue HDFFV-7947. -BMR +//-------------------------------------------------------------------------- +DataSpace H5Location::getRegion(void *ref, H5R_type_t ref_type) const +{ + hid_t space_id = H5Rget_region(getId(), ref_type, ref); + if (space_id < 0) + { + throw ReferenceException(inMemFunc("getRegion"), "H5Rget_region failed"); + } + try { + DataSpace dataspace; + f_DataSpace_setId(&dataspace, space_id); + return(dataspace); + } + catch (DataSpaceIException& E) { + throw ReferenceException(inMemFunc("getRegion"), E.getDetailMsg()); + } +} + + +// From H5CommonFG.cpp +// Notes with "***Updated" are new and for Group.cpp +// Original notes are from December 2000 +// +// There are a few comments that are common to most of the functions +// defined in this file so they are listed here. +// - getLocId is called by all functions, that call a C API, to get +// the location id, which can be either a file id or a group id. +// This function is pure virtual and it's up to H5File and Group +// to call the right getId() - although, as the structure of the +// library at this time, getId() is basically the IdComponent::getId() +// ***Updated: after the classes are rearranged (HDFFV-9920), functions +// in CommonFG are moved to Group, and they can call getId() +// instead of getLocId(). getLocId() is kept for backward +// compatibility on user applications. Aug 18, 2016 -BMR +// ***Updated: Moving to Group was a mistake, now to H5Location +// Aug 24, 2016 -BMR +// - when a failure returned by the C API, the functions will call +// throwException, which is a pure virtual function and is implemented +// by H5File to throw a FileIException and by Group to throw a +// GroupIException. +// ***Updated: after HDFFV-9920, methods in classes H5Location and Group +// use throwException to distinguish the FileIException and GroupIException. +// CommonFG is no longer used in the library. Aug 18, 2016 -BMR +// ***Note: following the changes in HDFFV-9920, some of the methods could +// throw different exceptions, but for backward-compatibility, throwException +// is kept in those methods as well. Sep 17, 2016 -BMR + +//-------------------------------------------------------------------------- +// Function: H5Location::createGroup +///\brief Creates a new group at this location which can be a file +/// or another group. +///\param name - IN: Name of the group to create +///\param size_hint - IN: Indicates the number of bytes to reserve for +/// the names that will appear in the group +///\return Group instance +///\exception H5::FileIException or H5::GroupIException +///\par Description +/// The optional \a size_hint specifies how much file space to +/// reserve for storing the names that will appear in this new +/// group. If a non-positive value is provided for the \a size_hint +/// then a default size is chosen. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +Group H5Location::createGroup(const char* name, size_t size_hint) const +{ + // Group creation property list for size hint + hid_t gcpl_id = 0; + + // Set the local heap size hint + if (size_hint > 0) + { + // If the creation of the property list failed, throw an exception + if ((gcpl_id = H5Pcreate(H5P_GROUP_CREATE)) < 0) + throwException("createGroup", "H5Pcreate failed"); + + if (H5Pset_local_heap_size_hint(gcpl_id, size_hint) < 0) { + H5Pclose(gcpl_id); + throwException("createGroup", "H5Pset_local_heap_size_hint failed"); + } + } + + // Call C routine H5Gcreate2 to create the named group, giving the + // location id which can be a file id or a group id + hid_t group_id = H5Gcreate2(getId(), name, H5P_DEFAULT, gcpl_id, H5P_DEFAULT); + + // Close the group creation property list, if necessary + if(gcpl_id > 0) + H5Pclose(gcpl_id); + + // If the creation of the group failed, throw an exception + if (group_id < 0) + throwException("createGroup", "H5Gcreate2 failed"); + + // No failure, create and return the Group object + Group group; + //group.p_setId(group_id); + H5Location *ptr = &group; + ptr->p_setId(group_id); + return(group); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::createGroup +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +Group H5Location::createGroup(const H5std_string& name, size_t size_hint) const +{ + return(createGroup( name.c_str(), size_hint)); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::openGroup +///\brief Opens an existing group in a location which can be a file +/// or another group. +///\param name - IN: Name of the group to open +///\return Group instance +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +Group H5Location::openGroup(const char* name) const +{ + // Call C routine H5Gopen2 to open the named group, giving the + // location id which can be a file id or a group id + hid_t group_id = H5Gopen2(getId(), name, H5P_DEFAULT); + + // If the opening of the group failed, throw an exception + if (group_id < 0) + throwException("openGroup", "H5Gopen2 failed"); + + // No failure, create and return the Group object + Group group; + //group.p_setId(group_id); + H5Location *ptr = &group; + ptr->p_setId(group_id); + return(group); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::openGroup +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +Group H5Location::openGroup(const H5std_string& name) const +{ + return(openGroup( name.c_str())); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::createDataSet +///\brief Creates a new dataset at this location. +///\param name - IN: Name of the dataset to create +///\param data_type - IN: Datatype of the dataset +///\param data_space - IN: Dataspace for the dataset +///\param create_plist - IN: Creation properly list for the dataset +///\return DataSet instance +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +DataSet H5Location::createDataSet(const char* name, const DataType& data_type, const DataSpace& data_space, const DSetCreatPropList& create_plist) const +{ + // Obtain identifiers for C API + hid_t type_id = data_type.getId(); + hid_t space_id = data_space.getId(); + hid_t create_plist_id = create_plist.getId(); + + // Call C routine H5Dcreate2 to create the named dataset + hid_t dataset_id = H5Dcreate2(getId(), name, type_id, space_id, H5P_DEFAULT, create_plist_id, H5P_DEFAULT); + + // If the creation of the dataset failed, throw an exception + if (dataset_id < 0) + throwException("createDataSet", "H5Dcreate2 failed"); + + // No failure, create and return the DataSet object + DataSet dataset; + f_DataSet_setId(&dataset, dataset_id); + return(dataset); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::createDataSet +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +DataSet H5Location::createDataSet(const H5std_string& name, const DataType& data_type, const DataSpace& data_space, const DSetCreatPropList& create_plist) const +{ + return(createDataSet(name.c_str(), data_type, data_space, create_plist)); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::openDataSet +///\brief Opens an existing dataset at this location. +///\param name - IN: Name of the dataset to open +///\return DataSet instance +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +DataSet H5Location::openDataSet(const char* name) const +{ + // Call C function H5Dopen2 to open the specified dataset, giving + // the location id and the dataset's name + hid_t dataset_id = H5Dopen2(getId(), name, H5P_DEFAULT); + + // If the dataset's opening failed, throw an exception + if(dataset_id < 0) + throwException("openDataSet", "H5Dopen2 failed"); + + // No failure, create and return the DataSet object + DataSet dataset; + f_DataSet_setId(&dataset, dataset_id); + return(dataset); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::openDataSet +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +DataSet H5Location::openDataSet(const H5std_string& name) const +{ + return(openDataSet( name.c_str())); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::link +///\brief Creates a link of the specified type from \a new_name to +/// \a curr_name. +///\param link_type - IN: Link type; possible values are +/// \li \c H5G_LINK_HARD +/// \li \c H5G_LINK_SOFT +///\param curr_name - IN: Name of the existing object if link is a hard +/// link; can be anything for the soft link +///\param new_name - IN: New name for the object +///\exception H5::FileIException or H5::GroupIException +///\par Description +/// Note that both names are interpreted relative to the +/// specified location. +/// For information on creating hard link and soft link, please +/// refer to the C layer Reference Manual at: +/// http://hdfgroup.org/HDF5/doc/RM/RM_H5L.html#Link-CreateHard and +/// http://hdfgroup.org/HDF5/doc/RM/RM_H5L.html#Link-CreateSoft +// Programmer Binh-Minh Ribler - 2000 +// Modification +// 2007: QAK modified to use H5L APIs - BMR +//-------------------------------------------------------------------------- +void H5Location::link(H5L_type_t link_type, const char* curr_name, const char* new_name) const +{ + herr_t ret_value = -1; + + switch(link_type) { + case H5L_TYPE_HARD: + ret_value = H5Lcreate_hard(getId(), curr_name, H5L_SAME_LOC, new_name, H5P_DEFAULT, H5P_DEFAULT); + break; + + case H5L_TYPE_SOFT: + ret_value = H5Lcreate_soft(curr_name,getId(), new_name, H5P_DEFAULT, H5P_DEFAULT); + break; + + case H5L_TYPE_ERROR: + case H5L_TYPE_EXTERNAL: + case H5L_TYPE_MAX: + default: + throwException("link", "unknown link type"); + break; + } /* end switch */ + + if (ret_value < 0) + throwException("link", "creating link failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::link +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a curr_name and \a new_name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::link(H5L_type_t link_type, const H5std_string& curr_name, const H5std_string& new_name) const +{ + link(link_type, curr_name.c_str(), new_name.c_str()); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::unlink +///\brief Removes the specified name at this location. +///\param name - IN: Name of the object to be removed +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +// Modification +// 2007: QAK modified to use H5L APIs - BMR +//-------------------------------------------------------------------------- +void H5Location::unlink(const char* name) const +{ + herr_t ret_value = H5Ldelete(getId(), name, H5P_DEFAULT); + if (ret_value < 0) + throwException("unlink", "H5Ldelete failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::unlink +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::unlink(const H5std_string& name) const +{ + unlink(name.c_str()); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::move +///\brief Renames an object at this location. +///\param src - IN: Object's original name +///\param dst - IN: Object's new name +///\exception H5::FileIException or H5::GroupIException +///\note +/// Exercise care in moving groups as it is possible to render +/// data in a file inaccessible with H5Location::move. Please refer +/// to the Group Interface in the HDF5 User's Guide for details at: +/// https://www.hdfgroup.org/HDF5/doc/UG/HDF5_Users_Guide-Responsive%20HTML5/index.html#t=HDF5_Users_Guide%2FGroups%2FHDF5_Groups.htm +// Programmer Binh-Minh Ribler - 2000 +// Modification +// 2007: QAK modified to use H5L APIs - BMR +//-------------------------------------------------------------------------- +void H5Location::move(const char* src, const char* dst) const +{ + herr_t ret_value = H5Lmove(getId(), src, H5L_SAME_LOC, dst, H5P_DEFAULT, H5P_DEFAULT); + if (ret_value < 0) + throwException("move", "H5Lmove failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::move +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a src and \a dst. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::move(const H5std_string& src, const H5std_string& dst) const +{ + move(src.c_str(), dst.c_str()); +} + +#ifndef H5_NO_DEPRECATED_SYMBOLS +//-------------------------------------------------------------------------- +// Function: H5Location::getObjinfo +///\brief Returns information about an object. +///\param name - IN: Name of the object +///\param follow_link - IN: Link flag +///\param statbuf - OUT: Buffer to return information about the object +///\exception H5::FileIException or H5::GroupIException +///\par Description +/// For more information, please refer to the C layer Reference +/// Manual at: +/// http://www.hdfgroup.org/HDF5/doc/RM/RM_H5G.html#Group-GetObjinfo +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::getObjinfo(const char* name, hbool_t follow_link, H5G_stat_t& statbuf) const +{ + herr_t ret_value = H5Gget_objinfo(getId(), name, follow_link, &statbuf); + if (ret_value < 0) + throwException("getObjinfo", "H5Gget_objinfo failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getObjinfo +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::getObjinfo(const H5std_string& name, hbool_t follow_link, H5G_stat_t& statbuf) const +{ + getObjinfo(name.c_str(), follow_link, statbuf); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getObjinfo +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above functions in that it doesn't have +/// the paramemter \a follow_link. +// Programmer Binh-Minh Ribler - Nov, 2005 +// Note: need to modify to use H5Oget_info and H5Lget_info - BMR +//-------------------------------------------------------------------------- +void H5Location::getObjinfo(const char* name, H5G_stat_t& statbuf) const +{ + herr_t ret_value = H5Gget_objinfo(getId(), name, 0, &statbuf); + if (ret_value < 0) + throwException("getObjinfo", "H5Gget_objinfo failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getObjinfo +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - Nov, 2005 +//-------------------------------------------------------------------------- +void H5Location::getObjinfo(const H5std_string& name, H5G_stat_t& statbuf) const +{ + getObjinfo(name.c_str(), statbuf); +} +#endif /* H5_NO_DEPRECATED_SYMBOLS */ + +//-------------------------------------------------------------------------- +// Function: H5Location::getLinkval +///\brief Returns the name of the object that the symbolic link points to. +///\param name - IN: Symbolic link to the object +///\param size - IN: Maximum number of characters of value to be returned +///\return Name of the object +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +H5std_string H5Location::getLinkval(const char* name, size_t size) const +{ + H5L_info_t linkinfo; + char *value_C; // value in C string + size_t val_size = size; + H5std_string value = ""; + herr_t ret_value; + + // if user doesn't provide buffer size, determine it + if (size == 0) + { + ret_value = H5Lget_info(getId(), name, &linkinfo, H5P_DEFAULT); + if (ret_value < 0) + throwException("getLinkval", "H5Lget_info to find buffer size failed"); + + val_size = linkinfo.u.val_size; + } + + // if link has value, retrieve the value, otherwise, return null string + if (val_size > 0) + { + value_C = new char[val_size+1]; // temporary C-string for C API + HDmemset(value_C, 0, val_size+1); // clear buffer + + ret_value = H5Lget_val(getId(), name, value_C, val_size, H5P_DEFAULT); + if (ret_value < 0) + { + delete []value_C; + throwException("getLinkval", "H5Lget_val failed"); + } + + value = H5std_string(value_C); + delete []value_C; + } + return(value); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getLinkval +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +H5std_string H5Location::getLinkval(const H5std_string& name, size_t size) const +{ + return(getLinkval( name.c_str(), size)); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::mount +///\brief Mounts the file \a child onto this group. +///\param name - IN: Name of the group +///\param child - IN: File to mount +///\param plist - IN: Property list to use +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2014 (original 2000) +//-------------------------------------------------------------------------- +void H5Location::mount(const char* name, const H5File& child, const PropList& plist) const +{ + // Obtain identifiers for C API + hid_t plist_id = plist.getId(); + hid_t child_id = child.getId(); + + // Call C routine H5Fmount to do the mouting + herr_t ret_value = H5Fmount(getId(), name, child_id, plist_id); + + // Raise exception if H5Fmount returns negative value + if (ret_value < 0) + throwException("mount", "H5Fmount failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::mount +// Purpose This is an overloaded member function, kept for backward +// compatibility. It differs from the above function in that it +// misses const's. This wrapper will be removed in future release. +// Param name - IN: Name of the group +// Param child - IN: File to mount +// Param plist - IN: Property list to use +// Exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +// Modification +// Modified to call its replacement. -BMR, 2014/04/16 +// Removed from documentation. -BMR, 2016/03/07 1.8.17 and 1.10.0 +// Removed from code. -BMR, 2016/08/11 1.8.18 and 1.10.1 +//-------------------------------------------------------------------------- +//void H5Location::mount(const char* name, H5File& child, PropList& plist) const +//{ +// mount(name, child, plist); +//} + +//-------------------------------------------------------------------------- +// Function: H5Location::mount +///\brief This is an overloaded member function, provided for convenience. +/// It takes an \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::mount(const H5std_string& name, const H5File& child, const PropList& plist) const +{ + mount(name.c_str(), child, plist); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::mount +// Purpose This is an overloaded member function, kept for backward +// compatibility. It differs from the above function in that it +// misses const's. This wrapper will be removed in future release. +// Programmer Binh-Minh Ribler - 2014 +// Modification +// Modified to call its replacement. -BMR, 2014/04/16 +// Removed from documentation. -BMR, 2016/03/07 1.8.17 and 1.10.0 +// Removed from code. -BMR, 2016/08/11 1.8.18 and 1.10.1 +//-------------------------------------------------------------------------- +//void H5Location::mount(const H5std_string& name, H5File& child, PropList& plist) const +//{ +// mount(name.c_str(), child, plist); +//} + +//-------------------------------------------------------------------------- +// Function: H5Location::unmount +///\brief Unmounts the specified file. +///\param name - IN: Name of the file to unmount +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::unmount(const char* name) const +{ + // Call C routine H5Fmount to do the mouting + herr_t ret_value = H5Funmount(getId(), name); + + // Raise exception if H5Funmount returns negative value + if (ret_value < 0) + throwException("unmount", "H5Funmount failed"); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::unmount +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::unmount(const H5std_string& name) const +{ + unmount(name.c_str()); +} + +#ifndef H5_NO_DEPRECATED_SYMBOLS +//-------------------------------------------------------------------------- +// Function: H5Location::iterateElems +///\brief Iterates a user's function over the entries of a group. +///\param name - IN : Name of group to iterate over +///\param idx - IN/OUT: Starting (IN) and ending (OUT) entry indices +///\param op - IN : User's function to operate on each entry +///\param op_data - IN/OUT: Data associated with the operation +///\return The return value of the first operator that returns non-zero, +/// or zero if all members were processed with no operator +/// returning non-zero. +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +int H5Location::iterateElems(const char* name, int *idx, H5G_iterate_t op , void* op_data) +{ + int ret_value = H5Giterate(getId(), name, idx, op, op_data); + if (ret_value < 0) + { + throwException("iterateElems", "H5Giterate failed"); + } + return(ret_value); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::iterateElems +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +int H5Location::iterateElems(const H5std_string& name, int *idx, H5G_iterate_t op , void* op_data) +{ + return(iterateElems( name.c_str(), idx, op, op_data)); +} +#endif /* H5_NO_DEPRECATED_SYMBOLS */ + +//-------------------------------------------------------------------------- +// Function: H5Location::getNumAttrs +///\brief Returns the number of attributes attached to this HDF5 object. +///\return Number of attributes +///\exception H5::AttributeIException +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +int H5Location::getNumAttrs() const +{ + H5O_info_t oinfo; /* Object info */ + + if(H5Oget_info(getId(), &oinfo) < 0) + throw AttributeIException(inMemFunc("getNumAttrs"), "H5Oget_info failed"); + else + return(static_cast<int>(oinfo.num_attrs)); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getObjnameByIdx +///\brief Returns the name of an object in this group, given the +/// object's index. +///\param idx - IN: Transient index of the object +///\return Object name +///\exception H5::FileIException or H5::GroupIException +///\par Description +/// The value of idx can be any nonnegative number less than the +/// total number of objects in the group, which is returned by +/// the function \c H5Location::getNumObjs. Note that this is a +/// transient index; thus, an object may have a different index +/// each time the group is opened. +// Programmer Binh-Minh Ribler - Mar, 2005 +//-------------------------------------------------------------------------- +H5std_string H5Location::getObjnameByIdx(hsize_t idx) const +{ + // call H5Lget_name_by_idx with name as NULL to get its length + ssize_t name_len = H5Lget_name_by_idx(getId(), ".", H5_INDEX_NAME, H5_ITER_INC, idx, NULL, 0, H5P_DEFAULT); + if(name_len < 0) + throwException("getObjnameByIdx", "H5Lget_name_by_idx failed"); + + // now, allocate C buffer to get the name + char* name_C = new char[name_len+1]; + HDmemset(name_C, 0, name_len+1); // clear buffer + + name_len = H5Lget_name_by_idx(getId(), ".", H5_INDEX_NAME, H5_ITER_INC, idx, name_C, name_len+1, H5P_DEFAULT); + + if (name_len < 0) + { + delete []name_C; + throwException("getObjnameByIdx", "H5Lget_name_by_idx failed"); + } + + // clean up and return the string + H5std_string name = H5std_string(name_C); + delete []name_C; + return (name); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getObjnameByIdx +///\brief Retrieves the name of an object in this group, given the +/// object's index. +///\param idx - IN: Transient index of the object +///\param name - IN/OUT: Retrieved name of the object +///\param size - IN: Length to retrieve +///\return Actual size of the object name or 0, if object has no name +///\exception H5::FileIException or H5::GroupIException +///\par Description +/// The value of idx can be any nonnegative number less than the +/// total number of objects in the group, which is returned by +/// the function \c H5Location::getNumObjs. Note that this is a +/// transient index; thus, an object may have a different index +/// each time the group is opened. +// Programmer Binh-Minh Ribler - January, 2003 +//-------------------------------------------------------------------------- +ssize_t H5Location::getObjnameByIdx(hsize_t idx, char* name, size_t size) const +{ + ssize_t name_len = H5Lget_name_by_idx(getId(), ".", H5_INDEX_NAME, H5_ITER_INC, idx, name, size, H5P_DEFAULT); + if(name_len < 0) + throwException("getObjnameByIdx", "H5Lget_name_by_idx failed"); + + return (name_len); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getObjnameByIdx +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function in that it takes an +/// \c H5std_string for \a name. +// Programmer Binh-Minh Ribler - January, 2003 +//-------------------------------------------------------------------------- +ssize_t H5Location::getObjnameByIdx(hsize_t idx, H5std_string& name, size_t size) const +{ + char* name_C = new char[size+1]; // temporary C-string for object name + HDmemset(name_C, 0, size+1); // clear buffer + + // call overloaded function to get the name + ssize_t name_len = getObjnameByIdx(idx, name_C, size+1); + if(name_len < 0) + { + delete []name_C; + throwException("getObjnameByIdx", "H5Lget_name_by_idx failed"); + } + + // clean up and return the string + name = H5std_string(name_C); + delete []name_C; + return (name_len); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::childObjType +///\brief Returns the type of an object in this file/group, given the +/// object's name. +///\param objname - IN: Name of the object +///\return Object type, which can have the following values for group, +/// dataset, and named datatype +/// \li \c H5O_TYPE_GROUP +/// \li \c H5O_TYPE_DATASET +/// \li \c H5O_TYPE_NAMED_DATATYPE +/// Refer to the C API documentation for more details: +/// http://www.hdfgroup.org/HDF5/doc/RM/RM_H5O.html#Object-GetInfo +///\exception H5::FileIException or H5::GroupIException +/// Exception will be thrown when: +/// - an error returned by the C API +/// - object type is not one of the valid values above +// Programmer Binh-Minh Ribler - April, 2014 +//-------------------------------------------------------------------------- +H5O_type_t H5Location::childObjType(const char* objname) const +{ + H5O_info_t objinfo; + H5O_type_t objtype = H5O_TYPE_UNKNOWN; + + // Use C API to get information of the object + herr_t ret_value = H5Oget_info_by_name(getId(), objname, &objinfo, H5P_DEFAULT); + + // Throw exception if C API returns failure + if (ret_value < 0) + throwException("childObjType", "H5Oget_info_by_name failed"); + // Return a valid type or throw an exception for unknown type + else + switch (objinfo.type) + { + case H5O_TYPE_GROUP: + case H5O_TYPE_DATASET: + case H5O_TYPE_NAMED_DATATYPE: + objtype = objinfo.type; + break; + case H5O_TYPE_UNKNOWN: + case H5O_TYPE_NTYPES: + default: + throwException("childObjType", "Unknown type of object"); + } + return(objtype); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::childObjType +///\brief This is an overloaded member function, provided for convenience. +/// It takes an \a H5std_string for the object's name. +///\brief Returns the type of an object in this group, given the +/// object's name. +///\param objname - IN: Name of the object (H5std_string&) +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - April, 2014 +//-------------------------------------------------------------------------- +H5O_type_t H5Location::childObjType(const H5std_string& objname) const +{ + // Use overloaded function + H5O_type_t objtype = childObjType(objname.c_str()); + return(objtype); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::childObjType +///\brief Returns the type of an object in this file/group, given the +/// object's index and its type and order. +///\param index - IN: Position of the object +///\param index_type - IN: Type of the index, default to H5_INDEX_NAME +///\param order - IN: Traversing order, default to H5_ITER_INC +///\param objname - IN: Name of the object, default to "." +///\return Object type, which can have the following values for group, +/// dataset, and named datatype +/// \li \c H5O_TYPE_GROUP +/// \li \c H5O_TYPE_DATASET +/// \li \c H5O_TYPE_NAMED_DATATYPE +/// Refer to the C API documentation for more details: +/// http://www.hdfgroup.org/HDF5/doc/RM/RM_H5O.html#Object-GetInfo +///\exception H5::FileIException or H5::GroupIException +/// Exception will be thrown when: +/// - an error returned by the C API +/// - object type is not one of the valid values above +// Developer's Notes: +// - this overload uses H5Oget_info_by_idx instead of H5Oget_info_by_name +// like the previous childObjType() +// - index is the required argument so, first +// - objname is last because it's more likely the location is already +// fully specified +// - Leave property list out for now because C API is not using it, it +// can be added later when needed. +// Programmer Binh-Minh Ribler - April, 2014 +//-------------------------------------------------------------------------- +H5O_type_t H5Location::childObjType(hsize_t index, H5_index_t index_type, H5_iter_order_t order, const char* objname) const +{ + herr_t ret_value; + H5O_info_t objinfo; + H5O_type_t objtype = H5O_TYPE_UNKNOWN; + + // Use C API to get information of the object + ret_value = H5Oget_info_by_idx(getId(), objname, index_type, order, index, &objinfo, H5P_DEFAULT); + + // Throw exception if C API returns failure + if (ret_value < 0) + throwException("childObjType", "H5Oget_info_by_idx failed"); + // Return a valid type or throw an exception for unknown type + else + switch (objinfo.type) + { + case H5O_TYPE_GROUP: + case H5O_TYPE_DATASET: + case H5O_TYPE_NAMED_DATATYPE: + objtype = objinfo.type; + break; + case H5O_TYPE_UNKNOWN: + case H5O_TYPE_NTYPES: + default: + throwException("childObjType", "Unknown type of object"); + } + return(objtype); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::childObjVersion +///\brief Returns the object header version of an object in this file/group, +/// given the object's name. +///\param objname - IN: Name of the object +///\return Object version, which can have the following values: +/// \li \c H5O_VERSION_1 +/// \li \c H5O_VERSION_2 +///\exception H5::FileIException or H5::GroupIException +/// Exception will be thrown when: +/// - an error returned by the C API +/// - version number is not one of the valid values above +// Programmer Binh-Minh Ribler - April, 2014 +//-------------------------------------------------------------------------- +unsigned H5Location::childObjVersion(const char* objname) const +{ + H5O_info_t objinfo; + unsigned version = 0; + + // Use C API to get information of the object + herr_t ret_value = H5Oget_info_by_name(getId(), objname, &objinfo, H5P_DEFAULT); + + // Throw exception if C API returns failure + if (ret_value < 0) + throwException("childObjVersion", "H5Oget_info_by_name failed"); + // Return a valid version or throw an exception for invalid value + else + { + version = objinfo.hdr.version; + if (version != H5O_VERSION_1 && version != H5O_VERSION_2) + throwException("childObjVersion", "Invalid version for object"); + } + return(version); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::childObjVersion +///\brief This is an overloaded member function, provided for convenience. +/// It takes an \a H5std_string for the object's name. +///\brief Returns the type of an object in this group, given the +/// object's name. +///\param objname - IN: Name of the object (H5std_string&) +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - April, 2014 +//-------------------------------------------------------------------------- +unsigned H5Location::childObjVersion(const H5std_string& objname) const +{ + // Use overloaded function + unsigned version = childObjVersion(objname.c_str()); + return(version); +} + +#ifndef H5_NO_DEPRECATED_SYMBOLS +//-------------------------------------------------------------------------- +// Function: H5Location::getObjType +///\brief Retrieves the type of object that an object reference points to. +///\param ref_type - IN: Type of reference to query, valid values are: +/// \li \c H5R_OBJECT - Reference is an object reference. +/// \li \c H5R_DATASET_REGION - Reference is a dataset region reference. +///\param ref - IN: Reference to query +///\return An object type, which can be one of the following: +/// \li \c H5G_UNKNOWN - A failure occurs. (-1) +/// \li \c H5G_GROUP - Object is a group. +/// \li \c H5G_DATASET - Object is a dataset. +/// \li \c H5G_TYPE Object - is a named datatype +/// \li \c H5G_LINK - Object is a symbolic link. +/// \li \c H5G_UDLINK - Object is a user-defined link. +///\exception H5::ReferenceException +// Programmer Binh-Minh Ribler - May, 2004 +// Modification +// Sep 2012: Moved up from H5File, Group, DataSet, and DataType +//-------------------------------------------------------------------------- +H5G_obj_t H5Location::getObjType(void *ref, H5R_type_t ref_type) const +{ + try { + return(p_get_obj_type(ref, ref_type)); + } + catch (ReferenceException& E) { + throw ReferenceException(inMemFunc("getObjType"), E.getDetailMsg()); + } +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getObjTypeByIdx +///\brief Returns the type of an object in this group, given the +/// object's index. +///\param idx - IN: Transient index of the object +///\return Object type +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - January, 2003 +//-------------------------------------------------------------------------- +H5G_obj_t H5Location::getObjTypeByIdx(hsize_t idx) const +{ + H5G_obj_t obj_type = H5Gget_objtype_by_idx(getId(), idx); + if (obj_type == H5G_UNKNOWN) + throwException("getObjTypeByIdx", "H5Gget_objtype_by_idx failed"); + + return (obj_type); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::getObjTypeByIdx +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function because it also provides +/// the returned object type in text (char*) +///\param idx - IN: Transient index of the object +///\param type_name - OUT: Object type in text +///\return Object type +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - May, 2010 +// Modification +// Modified to use the other function. -BMR, 2016/03/07 +//-------------------------------------------------------------------------- +H5G_obj_t H5Location::getObjTypeByIdx(hsize_t idx, char* type_name) const +{ + H5std_string stype_name(type_name); + return(getObjTypeByIdx(idx, stype_name)); +} +//-------------------------------------------------------------------------- +// Function: H5Location::getObjTypeByIdx +///\brief This is an overloaded member function, provided for convenience. +/// It differs from the above function because it also provides +/// the returned object type in text (H5std_string&) +///\param idx - IN: Transient index of the object +///\param type_name - OUT: Object type in text +///\return Object type +///\exception H5::FileIException or H5::GroupIException +// Programmer Binh-Minh Ribler - January, 2003 +//-------------------------------------------------------------------------- +H5G_obj_t H5Location::getObjTypeByIdx(hsize_t idx, H5std_string& type_name) const +{ + H5G_obj_t obj_type = H5Gget_objtype_by_idx(getId(), idx); + switch (obj_type) + { + case H5G_LINK: type_name = H5std_string("symbolic link"); break; + case H5G_GROUP: type_name = H5std_string("group"); break; + case H5G_DATASET: type_name = H5std_string("dataset"); break; + case H5G_TYPE: type_name = H5std_string("datatype"); break; + case H5G_UNKNOWN: + case H5G_UDLINK: + case H5G_RESERVED_5: + case H5G_RESERVED_6: + case H5G_RESERVED_7: + default: + throwException("getObjTypeByIdx", "H5Gget_objtype_by_idx failed"); + } + return (obj_type); +} + +#ifndef DOXYGEN_SHOULD_SKIP_THIS +//-------------------------------------------------------------------------- +// Function: H5Location::p_get_obj_type (protected) +// Purpose Retrieves the type of object that an object reference points to. +// Parameters +// ref - IN: Reference to query +// ref_type - IN: Type of reference to query +// Return An object type, which can be one of the following: +// H5G_UNKNOWN \tFailure occurs (-1) +// H5G_GROUP \tObject is a group. +// H5G_DATASET \tObject is a dataset. +// H5G_TYPE Object \tis a named datatype. +// H5G_LINK \tObject is a symbolic link. +// H5G_UDLINK \tObject is a user-defined link. +// Exception H5::ReferenceException +// Programmer Binh-Minh Ribler - May, 2004 +//-------------------------------------------------------------------------- +H5G_obj_t H5Location::p_get_obj_type(void *ref, H5R_type_t ref_type) const +{ + H5G_obj_t obj_type = H5Rget_obj_type1(getId(), ref_type, ref); + if (obj_type == H5G_UNKNOWN) + { + throw ReferenceException(inMemFunc("getObjType"), "H5Rget_obj_type1 failed"); + } + return(obj_type); +} + +#endif // DOXYGEN_SHOULD_SKIP_THIS +#endif // H5_NO_DEPRECATED_SYMBOLS + +#ifndef DOXYGEN_SHOULD_SKIP_THIS +//-------------------------------------------------------------------------- +// Function: H5Location::throwException +///\brief Invokes subclass' throwException +///\param func_name - Name of the function where failure occurs +///\param msg - Message describing the failure +///\exception H5::GroupIException +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +void H5Location::throwException(const H5std_string& func_name, const H5std_string& msg) const +{ + throwException(func_name, msg); +} + +//-------------------------------------------------------------------------- +// Function: f_DataSet_setId - friend +// Modification: +// Moved to H5CommonFG.cpp after the rearrangement of classes +// -BMR, Dec 2016 +//-------------------------------------------------------------------------- + +// end of From H5CommonFG.cpp + +//-------------------------------------------------------------------------- +// Function: f_Attribute_setId - friend +// Modification: +// Moved to H5Object.cpp after the rearrangement of classes +// -BMR, Dec 2016 +//-------------------------------------------------------------------------- + +//-------------------------------------------------------------------------- +// Function: f_DataSpace_setId - friend +// Purpose This function is friend to class H5::DataSpace so that it can +// can set DataSpace::id in order to work around a problem +// described in the JIRA issue HDFFV-7947. +// Applications shouldn't need to use it. +// param dspace - IN/OUT: DataSpace object to be changed +// param new_id - IN: New id to set +// Programmer Binh-Minh Ribler - 2015 +//-------------------------------------------------------------------------- +void f_DataSpace_setId(DataSpace* dspace, hid_t new_id) +{ + dspace->p_setId(new_id); +} + +//-------------------------------------------------------------------------- +// Function: H5Location destructor +///\brief Noop destructor. +// Programmer Binh-Minh Ribler - 2000 +//-------------------------------------------------------------------------- +H5Location::~H5Location() {} + +#endif // DOXYGEN_SHOULD_SKIP_THIS + +} // end namespace |