diff options
Diffstat (limited to 'c++/src/H5File.cpp')
| -rw-r--r-- | c++/src/H5File.cpp | 49 |
1 files changed, 45 insertions, 4 deletions
diff --git a/c++/src/H5File.cpp b/c++/src/H5File.cpp index 07d7e84..719c1ba 100644 --- a/c++/src/H5File.cpp +++ b/c++/src/H5File.cpp @@ -192,16 +192,17 @@ H5File::H5File(const H5File& original) : Group() //-------------------------------------------------------------------------- bool H5File::isHdf5(const char* name) { - // Calls C routine H5Fis_hdf5 to determine whether the file is in + // Calls C routine H5Fis_accessible to determine whether the file is in // HDF5 format. It returns positive value, 0, or negative value - htri_t ret_value = H5Fis_hdf5(name); + htri_t ret_value = H5Fis_accessible(name, H5P_DEFAULT); + if (ret_value > 0) return true; else if (ret_value == 0) return false; - else // Raise exception when H5Fis_hdf5 returns a negative value + else // Raise exception when H5Fis_accessible returns a negative value { - throw FileIException("H5File::isHdf5", "H5Fis_hdf5 returned negative value"); + throw FileIException("H5File::isHdf5", "H5Fis_accessible returned negative value"); } } @@ -218,6 +219,46 @@ bool H5File::isHdf5(const H5std_string& name) } //-------------------------------------------------------------------------- +// Function: H5File::isAccessible (static) +///\brief Determines whether a file can be accessed as HDF5. (Static) +///\param name - IN: Name of the file +///\param access_plist - IN: File access property list. Default to +/// FileAccPropList::DEFAULT +///\return true if the file can be accessed as HDF5, and false, otherwise +///\exception H5::FileIException +// September 2018 +//-------------------------------------------------------------------------- +bool H5File::isAccessible(const char* name, const FileAccPropList& access_plist) +{ + // Calls C routine H5Fis_accessible to determine whether the file is in + // HDF5 format. It returns positive value, 0, or negative value + hid_t access_plist_id = access_plist.getId(); + htri_t ret_value = H5Fis_accessible(name, access_plist_id); + if (ret_value > 0) + return true; + else if (ret_value == 0) + return false; + else // Raise exception when H5Fis_accessible returns a negative value + { + throw FileIException("H5File::isAccessible", "H5Fis_accessible returned negative value"); + } +} + +//-------------------------------------------------------------------------- +// Function: H5File::isAccessible (static) +///\brief This is an overloaded member function, provided for convenience. +/// It takes an \c H5std_string for \a name. (Static) +///\param name - IN: Name of the file - \c H5std_string +///\param access_plist - IN: File access property list. Default to +/// FileAccPropList::DEFAULT +// September 2018 +//-------------------------------------------------------------------------- +bool H5File::isAccessible(const H5std_string& name, const FileAccPropList& access_plist) +{ + return(isAccessible(name.c_str(), access_plist)); +} + +//-------------------------------------------------------------------------- // Function: openFile ///\brief Opens an HDF5 file ///\param name - IN: Name of the file |