diff options
Diffstat (limited to 'c++/src/H5Group.cpp')
| -rw-r--r-- | c++/src/H5Group.cpp | 1282 |
1 files changed, 10 insertions, 1272 deletions
diff --git a/c++/src/H5Group.cpp b/c++/src/H5Group.cpp index d93d3a1..0e19e6f 100644 --- a/c++/src/H5Group.cpp +++ b/c++/src/H5Group.cpp @@ -24,14 +24,14 @@ #include "H5Exception.h" #include "H5IdComponent.h" #include "H5PropList.h" -#include "H5Location.h" -#include "H5Object.h" -#include "H5AbstractDs.h" #include "H5FaccProp.h" #include "H5FcreatProp.h" #include "H5OcreatProp.h" #include "H5DcreatProp.h" #include "H5DxferProp.h" +#include "H5Location.h" +#include "H5Object.h" +#include "H5AbstractDs.h" #include "H5DataSpace.h" #include "H5DataSet.h" #include "H5Attribute.h" @@ -68,9 +68,11 @@ Group::Group(const Group& original) : H5Object(), id(original.id) //-------------------------------------------------------------------------- // Function: Group::getLocId -///\brief Returns the id of this group. -///\return Id of this group +// Purpose: Get the id of this group // Programmer Binh-Minh Ribler - 2000 +// Description +// This function is a redefinition of CommonFG::getLocId. It +// is used by CommonFG member functions to get the file id. // Deprecated: // After HDFFV-9920, the Group's methods can use getId() and getLocId() // is kept for backward compatibility. Aug 18, 2016 -BMR @@ -196,11 +198,10 @@ void Group::close() ///\param msg - Message describing the failure ///\exception H5::GroupIException // Description -// This function is used in CommonFG implementation so that +// This function is also used in H5Location's methods so that // proper exception can be thrown for file or group. The -// argument func_name is a member of CommonFG and "Group::" -// will be inserted to indicate the function called is an -// implementation of Group. +// "Group::" will be inserted to indicate the function called is +// an implementation of Group. // Programmer Binh-Minh Ribler - 2000 //-------------------------------------------------------------------------- void Group::throwException(const H5std_string& func_name, const H5std_string& msg) const @@ -230,1269 +231,6 @@ Group::~Group() } } - -// 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 -// - 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 class Group use throwException -// to distinguish the FileIException and GroupIException. CommonFG is no -// longer used in the library. Aug 18, 2016 -BMR - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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); - // CommonFG *ptr = &group; - // ptr->p_setId(group_id); - return( group ); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::createGroup( const H5std_string& name, size_t size_hint ) const -{ - return( createGroup( name.c_str(), size_hint )); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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); - // CommonFG *ptr = &group; - // ptr->p_setId(group_id); - return( group ); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::openGroup( const H5std_string& name ) const -{ - return( openGroup( name.c_str() )); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::createDataSet( const char* name, const DataType& data_type, const DataSpace& data_space, const DSetCreatPropList& create_plist ) const -{ - //cerr << "createDataSet( const char* name" << endl; - // 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 ); - //cerr << " H5Dcreate2 returns dataset_id " << dataset_id << endl; - - // 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: Group::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 Group::createDataSet( const H5std_string& name, const DataType& data_type, const DataSpace& data_space, const DSetCreatPropList& create_plist ) const -{ - //cerr << "createDataSet( const H5std_string& name" << endl; - return( createDataSet( name.c_str(), data_type, data_space, create_plist )); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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: Group::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 Group::openDataSet( const H5std_string& name ) const -{ - return( openDataSet( name.c_str() )); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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: Group::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 Group::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: Group::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 Group::unlink( const char* name ) const -{ - herr_t ret_value = H5Ldelete(getId(), name, H5P_DEFAULT ); - if( ret_value < 0 ) - throwException("unlink", "H5Ldelete failed"); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::unlink( const H5std_string& name ) const -{ - unlink( name.c_str() ); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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 Group::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: Group::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 Group::move( const H5std_string& src, const H5std_string& dst ) const -{ - move( src.c_str(), dst.c_str() ); -} - -#ifndef H5_NO_DEPRECATED_SYMBOLS -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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: Group::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 Group::getObjinfo( const H5std_string& name, hbool_t follow_link, H5G_stat_t& statbuf ) const -{ - getObjinfo( name.c_str(), follow_link, statbuf ); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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: Group::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 Group::getObjinfo( const H5std_string& name, H5G_stat_t& statbuf ) const -{ - getObjinfo( name.c_str(), statbuf ); -} -#endif /* H5_NO_DEPRECATED_SYMBOLS */ - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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(getLocId(), 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(getLocId(), 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: Group::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 Group::getLinkval( const H5std_string& name, size_t size ) const -{ - return( getLinkval( name.c_str(), size )); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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: Group::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 Group::mount(const char* name, H5File& child, PropList& plist) const -//{ -// mount(name, child, plist); -//} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::mount(const H5std_string& name, const H5File& child, const PropList& plist) const -{ - mount(name.c_str(), child, plist); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::mount(const H5std_string& name, H5File& child, PropList& plist) const -//{ -// mount(name.c_str(), child, plist); -//} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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: Group::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 Group::unmount( const H5std_string& name ) const -{ - unmount( name.c_str() ); -} - -//-------------------------------------------------------------------------- -// Function: Group::openDataType -///\brief Opens the named generic datatype at this location. -///\param name - IN: Name of the datatype to open -///\return DataType instance -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - 2000 -//-------------------------------------------------------------------------- -DataType Group::openDataType( const char* name ) const -{ - // Call C function H5Topen2 to open the named datatype in this group, - // given either the file or group id - hid_t type_id = H5Topen2(getLocId(), name, H5P_DEFAULT); - - // If the datatype's opening failed, throw an exception - if( type_id < 0 ) - throwException("openDataType", "H5Topen2 failed"); - - // No failure, create and return the DataType object - DataType data_type; - f_DataType_setId(&data_type, type_id); - return(data_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::openDataType -///\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 -//-------------------------------------------------------------------------- -DataType Group::openDataType( const H5std_string& name ) const -{ - return( openDataType( name.c_str()) ); -} - -//-------------------------------------------------------------------------- -// Function: Group::openArrayType -///\brief Opens the named array datatype at this location. -///\param name - IN: Name of the array datatype to open -///\return ArrayType instance -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - Jul, 2005 -//-------------------------------------------------------------------------- -ArrayType Group::openArrayType( const char* name ) const -{ - // Call C function H5Topen2 to open the named datatype in this group, - // given either the file or group id - hid_t type_id = H5Topen2(getLocId(), name, H5P_DEFAULT); - - // If the datatype's opening failed, throw an exception - if( type_id < 0 ) - throwException("openArrayType", "H5Topen2 failed"); - - // No failure, create and return the ArrayType object - ArrayType array_type; - f_DataType_setId(&array_type, type_id); - return(array_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::openArrayType -///\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 - Jul, 2005 -//-------------------------------------------------------------------------- -ArrayType Group::openArrayType( const H5std_string& name ) const -{ - return( openArrayType( name.c_str()) ); -} - -//-------------------------------------------------------------------------- -// Function: Group::openCompType -///\brief Opens the named compound datatype at this location. -///\param name - IN: Name of the compound datatype to open -///\return CompType instance -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - 2000 -//-------------------------------------------------------------------------- -CompType Group::openCompType( const char* name ) const -{ - // Call C function H5Topen2 to open the named datatype in this group, - // given either the file or group id - hid_t type_id = H5Topen2(getLocId(), name, H5P_DEFAULT); - - // If the datatype's opening failed, throw an exception - if( type_id < 0 ) - throwException("openCompType", "H5Topen2 failed"); - - // No failure, create and return the CompType object - CompType comp_type; - f_DataType_setId(&comp_type, type_id); - return(comp_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::openCompType -///\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 -//-------------------------------------------------------------------------- -CompType Group::openCompType( const H5std_string& name ) const -{ - return( openCompType( name.c_str()) ); -} - -//-------------------------------------------------------------------------- -// Function: Group::openEnumType -///\brief Opens the named enumeration datatype at this location. -///\param name - IN: Name of the enumeration datatype to open -///\return EnumType instance -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - 2000 -//-------------------------------------------------------------------------- -EnumType Group::openEnumType( const char* name ) const -{ - // Call C function H5Topen2 to open the named datatype in this group, - // given either the file or group id - hid_t type_id = H5Topen2(getLocId(), name, H5P_DEFAULT); - - // If the datatype's opening failed, throw an exception - if( type_id < 0 ) - throwException("openEnumType", "H5Topen2 failed"); - - // No failure, create and return the EnumType object - EnumType enum_type; - f_DataType_setId(&enum_type, type_id); - return(enum_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::openEnumType -///\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 -//-------------------------------------------------------------------------- -EnumType Group::openEnumType( const H5std_string& name ) const -{ - return( openEnumType( name.c_str()) ); -} - -//-------------------------------------------------------------------------- -// Function: Group::openIntType -///\brief Opens the named integer datatype at this location. -///\param name - IN: Name of the integer datatype to open -///\return IntType instance -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - 2000 -//-------------------------------------------------------------------------- -IntType Group::openIntType( const char* name ) const -{ - // Call C function H5Topen2 to open the named datatype in this group, - // given either the file or group id - hid_t type_id = H5Topen2(getLocId(), name, H5P_DEFAULT); - - // If the datatype's opening failed, throw an exception - if( type_id < 0 ) - throwException("openIntType", "H5Topen2 failed"); - - // No failure, create and return the IntType object - IntType int_type; - f_DataType_setId(&int_type, type_id); - return(int_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::openIntType -///\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 -//-------------------------------------------------------------------------- -IntType Group::openIntType( const H5std_string& name ) const -{ - return( openIntType( name.c_str()) ); -} - -//-------------------------------------------------------------------------- -// Function: Group::openFloatType -///\brief Opens the named floating-point datatype at this location. -///\param name - IN: Name of the floating-point datatype to open -///\return FloatType instance -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - 2000 -//-------------------------------------------------------------------------- -FloatType Group::openFloatType( const char* name ) const -{ - // Call C function H5Topen2 to open the named datatype in this group, - // given either the file or group id - hid_t type_id = H5Topen2(getLocId(), name, H5P_DEFAULT); - - // If the datatype's opening failed, throw an exception - if( type_id < 0 ) - throwException("openFloatType", "H5Topen2 failed"); - - // No failure, create and return the FloatType object - FloatType float_type; - f_DataType_setId(&float_type, type_id); - return(float_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::openFloatType -///\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 -//-------------------------------------------------------------------------- -FloatType Group::openFloatType( const H5std_string& name ) const -{ - return( openFloatType( name.c_str()) ); -} - -//-------------------------------------------------------------------------- -// Function: Group::openStrType -///\brief Opens the named string datatype at this location. -///\param name - IN: Name of the string datatype to open -///\return StrType instance -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - 2000 -//-------------------------------------------------------------------------- -StrType Group::openStrType( const char* name ) const -{ - // Call C function H5Topen2 to open the named datatype in this group, - // given either the file or group id - hid_t type_id = H5Topen2(getLocId(), name, H5P_DEFAULT); - - // If the datatype's opening failed, throw an exception - if( type_id < 0 ) - throwException("openStrType", "H5Topen2 failed"); - - // No failure, create and return the StrType object - StrType str_type; - f_DataType_setId(&str_type, type_id); - return(str_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::openStrType -///\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 -//-------------------------------------------------------------------------- -StrType Group::openStrType( const H5std_string& name ) const -{ - return( openStrType( name.c_str()) ); -} - -//-------------------------------------------------------------------------- -// Function: Group::openVarLenType -///\brief Opens the named variable length datatype at this location. -///\param name - IN: Name of the variable length datatype to open -///\return VarLenType instance -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - Jul, 2005 -//-------------------------------------------------------------------------- -VarLenType Group::openVarLenType( const char* name ) const -{ - // Call C function H5Topen2 to open the named datatype in this group, - // given either the file or group id - hid_t type_id = H5Topen2(getLocId(), name, H5P_DEFAULT); - - // If the datatype's opening failed, throw an exception - if( type_id < 0 ) - throwException("openVarLenType", "H5Topen2 failed"); - - // No failure, create and return the VarLenType object - VarLenType varlen_type; - f_DataType_setId(&varlen_type, type_id); - return(varlen_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::openVarLenType -///\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 - Jul, 2005 -//-------------------------------------------------------------------------- -VarLenType Group::openVarLenType( const H5std_string& name ) const -{ - return( openVarLenType( name.c_str()) ); -} - -#ifndef H5_NO_DEPRECATED_SYMBOLS -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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: Group::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 Group::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: Group::getNumObjs -///\brief Returns the number of objects in this group. -///\return Number of objects -///\exception H5::FileIException or H5::GroupIException -// Programmer Binh-Minh Ribler - January, 2003 -//-------------------------------------------------------------------------- -hsize_t Group::getNumObjs() const -{ - H5G_info_t ginfo; /* Group information */ - - herr_t ret_value = H5Gget_info(getLocId(), &ginfo); - if(ret_value < 0) - throwException("getNumObjs", "H5Gget_info failed"); - return (ginfo.nlinks); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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 Group::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(getLocId(), ".", 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(getLocId(), ".", 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: Group::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 Group::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 Group::getObjnameByIdx(hsize_t idx, char* name, size_t size) const -{ - ssize_t name_len = H5Lget_name_by_idx(getLocId(), ".", 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: Group::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 Group::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: Group::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 Group::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(getLocId(), 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: Group::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 Group::childObjType(const H5std_string& objname) const -{ - // Use overloaded function - H5O_type_t objtype = childObjType(objname.c_str()); - return(objtype); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::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(getLocId(), 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: Group::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 Group::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(getLocId(), 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: Group::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 Group::childObjVersion(const H5std_string& objname) const -{ - // Use overloaded function - unsigned version = childObjVersion(objname.c_str()); - return(version); -} - -#ifndef H5_NO_DEPRECATED_SYMBOLS -#ifndef DOXYGEN_SHOULD_SKIP_THIS -//-------------------------------------------------------------------------- -// Function: Group::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 Group::getObjTypeByIdx(hsize_t idx) const -{ - H5G_obj_t obj_type = H5Gget_objtype_by_idx(getLocId(), idx); - if (obj_type == H5G_UNKNOWN) - throwException("getObjTypeByIdx", "H5Gget_objtype_by_idx failed"); - - return (obj_type); -} - -//-------------------------------------------------------------------------- -// Function: Group::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 Group::getObjTypeByIdx(hsize_t idx, char* type_name) const -{ - H5std_string stype_name(type_name); - return(getObjTypeByIdx(idx, stype_name)); -} -//-------------------------------------------------------------------------- -// Function: Group::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 Group::getObjTypeByIdx(hsize_t idx, H5std_string& type_name) const -{ - H5G_obj_t obj_type = H5Gget_objtype_by_idx(getLocId(), 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); -} - -#endif // DOXYGEN_SHOULD_SKIP_THIS -#endif /* H5_NO_DEPRECATED_SYMBOLS */ - -#ifndef DOXYGEN_SHOULD_SKIP_THIS - -//-------------------------------------------------------------------------- -// Function: f_DataType_setId - friend -// Purpose: This function is friend to class H5::DataType so that it -// can set DataType::id in order to work around a problem -// described in the JIRA issue HDFFV-7947. -// Applications shouldn't need to use it. -// param dtype - IN/OUT: DataType object to be changed -// param new_id - IN: New id to set -// Programmer Binh-Minh Ribler - 2015 -//-------------------------------------------------------------------------- -void f_DataType_setId(DataType* dtype, hid_t new_id) -{ - dtype->p_setId(new_id); -} - -//-------------------------------------------------------------------------- -// Function: f_DataSet_setId - friend -// Purpose: This function is friend to class H5::DataSet so that it -// can set DataSet::id in order to work around a problem -// described in the JIRA issue HDFFV-7947. -// Applications shouldn't need to use it. -// param dset - IN/OUT: DataSet object to be changed -// param new_id - IN: New id to set -// Programmer Binh-Minh Ribler - 2015 -//-------------------------------------------------------------------------- -void f_DataSet_setId(DataSet* dset, hid_t new_id) -{ - dset->p_setId(new_id); -} - -#endif // DOXYGEN_SHOULD_SKIP_THIS - #ifndef H5_NO_NAMESPACE } // end namespace #endif |