diff options
Diffstat (limited to 'c++/src/H5Location.cpp')
| -rw-r--r-- | c++/src/H5Location.cpp | 1297 |
1 files changed, 1286 insertions, 11 deletions
diff --git a/c++/src/H5Location.cpp b/c++/src/H5Location.cpp index 4048d94..334389e 100644 --- a/c++/src/H5Location.cpp +++ b/c++/src/H5Location.cpp @@ -19,20 +19,20 @@ #include "H5Exception.h" #include "H5IdComponent.h" #include "H5PropList.h" -#include "H5Location.h" -#include "H5Object.h" +#include "H5FaccProp.h" +#include "H5FcreatProp.h" #include "H5OcreatProp.h" #include "H5DcreatProp.h" #include "H5DxferProp.h" -#include "H5FaccProp.h" -#include "H5FcreatProp.h" -#include "H5DataType.h" -#include "H5DataSpace.h" +#include "H5Location.h" +#include "H5Object.h" #include "H5AbstractDs.h" -#include "H5Group.h" -#include "H5File.h" +#include "H5DataSpace.h" #include "H5DataSet.h" #include "H5Attribute.h" +#include "H5Group.h" +#include "H5File.h" +#include "H5Alltypes.h" #include "H5private.h" // for HDmemset #ifndef H5_NO_NAMESPACE @@ -658,12 +658,1280 @@ DataSpace H5Location::getRegion(void *ref, H5R_type_t ref_type) const } +// 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 destructor -///\brief Noop destructor. +// 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 //-------------------------------------------------------------------------- -H5Location::~H5Location() {} +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() ); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::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 H5Location::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(getId(), 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: H5Location::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 H5Location::openDataType( const H5std_string& name ) const +{ + return( openDataType( name.c_str()) ); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::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 H5Location::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(getId(), 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: H5Location::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 H5Location::openArrayType( const H5std_string& name ) const +{ + return( openArrayType( name.c_str()) ); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::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 H5Location::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(getId(), 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: H5Location::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 H5Location::openCompType( const H5std_string& name ) const +{ + return( openCompType( name.c_str()) ); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::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 H5Location::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(getId(), 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: H5Location::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 H5Location::openEnumType( const H5std_string& name ) const +{ + return( openEnumType( name.c_str()) ); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::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 H5Location::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(getId(), 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: H5Location::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 H5Location::openIntType( const H5std_string& name ) const +{ + return( openIntType( name.c_str()) ); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::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 H5Location::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(getId(), 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: H5Location::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 H5Location::openFloatType( const H5std_string& name ) const +{ + return( openFloatType( name.c_str()) ); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::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 H5Location::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(getId(), 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: H5Location::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 H5Location::openStrType( const H5std_string& name ) const +{ + return( openStrType( name.c_str()) ); +} + +//-------------------------------------------------------------------------- +// Function: H5Location::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 H5Location::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(getId(), 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: H5Location::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 H5Location::openVarLenType( const H5std_string& name ) const +{ + return( openVarLenType( 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::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 H5Location::getNumObjs() const +{ + H5G_info_t ginfo; /* Group information */ + + herr_t ret_value = H5Gget_info(getId(), &ginfo); + if(ret_value < 0) + throwException("getNumObjs", "H5Gget_info failed"); + return (ginfo.nlinks); +} + +//-------------------------------------------------------------------------- +// 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 +#ifndef DOXYGEN_SHOULD_SKIP_THIS +//-------------------------------------------------------------------------- +// 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); +} + +//-------------------------------------------------------------------------- +// 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); +} + +#endif // DOXYGEN_SHOULD_SKIP_THIS +#endif /* H5_NO_DEPRECATED_SYMBOLS */ + +//-------------------------------------------------------------------------- +// 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); +} + +// end of From H5CommonFG.cpp //-------------------------------------------------------------------------- // Function: f_Attribute_setId - friend @@ -695,6 +1963,13 @@ 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 #ifndef H5_NO_NAMESPACE |