diff options
Diffstat (limited to 'c++/src/H5File.cpp')
| -rw-r--r-- | c++/src/H5File.cpp | 84 |
1 files changed, 44 insertions, 40 deletions
diff --git a/c++/src/H5File.cpp b/c++/src/H5File.cpp index 45e08b2..84e7827 100644 --- a/c++/src/H5File.cpp +++ b/c++/src/H5File.cpp @@ -50,7 +50,7 @@ namespace H5 { ///\brief Default constructor: creates a stub H5File object. // Programmer Binh-Minh Ribler - 2000 //-------------------------------------------------------------------------- -H5File::H5File() : H5Location(), id(H5I_INVALID_HID) {} +H5File::H5File() : H5Location(), CommonFG(), id(H5I_INVALID_HID) {} //-------------------------------------------------------------------------- // Function: H5File overloaded constructor @@ -73,9 +73,6 @@ H5File::H5File() : H5Location(), id(H5I_INVALID_HID) {} /// exists, and fail, otherwise /// \li \c H5F_ACC_RDWR - Open file for read/write, if it already /// exists, and fail, otherwise -/// \li \c H5F_ACC_DEBUG - print debug information. This flag is -/// used only by HDF5 library developers; it is neither -/// tested nor supported for use in applications. ///\par /// For info on file creation in the case of an already-open file, /// please refer to the \b Special \b case section in the C layer @@ -86,7 +83,7 @@ H5File::H5File() : H5Location(), id(H5I_INVALID_HID) {} // to catch then re-throw it. -BMR 2013/03/21 // Programmer Binh-Minh Ribler - 2000 //-------------------------------------------------------------------------- -H5File::H5File( const char* name, unsigned int flags, const FileCreatPropList& create_plist, const FileAccPropList& access_plist ) : H5Location(), id(H5I_INVALID_HID) +H5File::H5File( const char* name, unsigned int flags, const FileCreatPropList& create_plist, const FileAccPropList& access_plist ) : H5Location(), CommonFG(), id(H5I_INVALID_HID) { try { p_get_file(name, flags, create_plist, access_plist); @@ -111,7 +108,7 @@ H5File::H5File( const char* name, unsigned int flags, const FileCreatPropList& c // to catch then re-throw it. -BMR 2013/03/21 // Programmer Binh-Minh Ribler - 2000 //-------------------------------------------------------------------------- -H5File::H5File( const H5std_string& name, unsigned int flags, const FileCreatPropList& create_plist, const FileAccPropList& access_plist ) : H5Location(), id(H5I_INVALID_HID) +H5File::H5File( const H5std_string& name, unsigned int flags, const FileCreatPropList& create_plist, const FileAccPropList& access_plist ) : H5Location(), CommonFG(), id(H5I_INVALID_HID) { try { p_get_file(name.c_str(), flags, create_plist, access_plist); @@ -133,38 +130,57 @@ void H5File::p_get_file(const char* name, unsigned int flags, const FileCreatPro { // These bits only set for creation, so if any of them are set, // create the file. - if( flags & (H5F_ACC_EXCL|H5F_ACC_TRUNC|H5F_ACC_DEBUG)) + if( flags & (H5F_ACC_EXCL|H5F_ACC_TRUNC)) { - hid_t create_plist_id = create_plist.getId(); - hid_t access_plist_id = access_plist.getId(); - id = H5Fcreate( name, flags, create_plist_id, access_plist_id ); - if( id < 0 ) // throw an exception when open/create fail - { - throw FileIException("H5File constructor", "H5Fcreate failed"); - } + hid_t create_plist_id = create_plist.getId(); + hid_t access_plist_id = access_plist.getId(); + id = H5Fcreate( name, flags, create_plist_id, access_plist_id ); + if( id < 0 ) // throw an exception when open/create fail + { + throw FileIException("H5File constructor", "H5Fcreate failed"); + } } // Open the file if none of the bits above are set. else { - hid_t access_plist_id = access_plist.getId(); - id = H5Fopen( name, flags, access_plist_id ); - if( id < 0 ) // throw an exception when open/create fail - { - throw FileIException("H5File constructor", "H5Fopen failed"); - } + hid_t access_plist_id = access_plist.getId(); + id = H5Fopen( name, flags, access_plist_id ); + if( id < 0 ) // throw an exception when open/create fail + { + throw FileIException("H5File constructor", "H5Fopen failed"); + } } } #endif // DOXYGEN_SHOULD_SKIP_THIS //-------------------------------------------------------------------------- +// Function: H5File overloaded constructor +///\brief Creates an H5File object using an existing file id. +///\param existing_id - IN: Id of an existing file +// Programmer Binh-Minh Ribler - 2015 +// Description +// Mar 29, 2015 +// Added in responding to a request from user Jason Newton. +// However, it is not recommended to use the private member "id" +// in applications. Unlike other situations, where similar +// constructor is needed by the library in order to return +// an object, H5File doesn't need it. -BMR (HDFFV-8766 partially) +//-------------------------------------------------------------------------- +H5File::H5File(hid_t existing_id) : H5Location(), CommonFG() +{ + id = existing_id; + incRefCount(); // increment number of references to this id +} + +//-------------------------------------------------------------------------- // Function: H5File copy constructor ///\brief Copy constructor: makes a copy of the original /// H5File object. ///\param original - IN: H5File instance to copy // Programmer Binh-Minh Ribler - 2000 //-------------------------------------------------------------------------- -H5File::H5File(const H5File& original) : H5Location(original) +H5File::H5File(const H5File& original) : H5Location(), CommonFG() { id = original.getId(); incRefCount(); // increment number of references to this id @@ -225,6 +241,13 @@ bool H5File::isHdf5(const H5std_string& name ) //-------------------------------------------------------------------------- void H5File::openFile(const char* name, unsigned int flags, const FileAccPropList& access_plist) { + try { + close(); + } + catch (Exception close_error) { + throw FileIException("H5File::openFile", close_error.getDetailMsg()); + } + hid_t access_plist_id = access_plist.getId(); id = H5Fopen (name, flags, access_plist_id); if (id < 0) // throw an exception when open fails @@ -379,25 +402,6 @@ ssize_t H5File::getObjCount(unsigned types) const } //-------------------------------------------------------------------------- -// Function: H5File::getObjCount -///\brief This is an overloaded member function, provided for convenience. -/// It takes no parameter and returns the object count of all -/// object types. -///\return Number of opened object IDs -///\exception H5::FileIException -// Programmer Binh-Minh Ribler - May 2004 -//-------------------------------------------------------------------------- -ssize_t H5File::getObjCount() const -{ - ssize_t num_objs = H5Fget_obj_count(id, H5F_OBJ_ALL); - if( num_objs < 0 ) - { - throw FileIException("H5File::getObjCount", "H5Fget_obj_count failed"); - } - return (num_objs); -} - -//-------------------------------------------------------------------------- // Function: H5File::getObjIDs ///\brief Retrieves a list of opened object IDs (files, datasets, /// groups and datatypes) in the same file. |