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[svn-r9127] Purpose: Adding wrapper for new C API and other updates

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Description:
    Added wrappers for H5Fget_name:
        H5File::getFileName
        H5Object::getFileName
    Moved some functions from Group into the base class CommonFG for
        H5File too.

Platforms tested:
    SunOS 5.7 (arabica)
    Linux 2.4 (eirene)
This commit is contained in:
Binh-Minh Ribler
2004-08-19 23:29:58 -05:00
parent 226df40694
commit 4a04b0c05c
8 changed files with 360 additions and 171 deletions
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84
c++/src/H5IdComponent.cpp
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@@ -23,15 +23,6 @@
namespace H5 {
#endif
//--------------------------------------------------------------------------
// Function: IdComponent default constructor - private
///\brief Default constructor.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
IdComponent::IdComponent() : id( -1 )
{
}
//--------------------------------------------------------------------------
// Function: IdComponent overloaded constructor
///\brief Creates an IdComponent object using the id of an existing object.
@@ -39,10 +30,7 @@ IdComponent::IdComponent() : id( -1 )
///\exception H5::DataTypeIException
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
IdComponent::IdComponent( const hid_t h5_id ) : id( h5_id )
{
}
IdComponent::IdComponent(const hid_t h5_id) : id(h5_id) {}
//--------------------------------------------------------------------------
// Function: IdComponent copy constructor
@@ -91,15 +79,16 @@ int IdComponent::getCounter() { return( H5Iget_ref(id)); }
///\exception H5::IdComponentException when attempt to close the HDF5
/// object fails
// Description
// Reset the identifier of this object so that the HDF5 id can
// be properly closed. Copy the id from rhs to this object,
// then increment the reference counter of the id to indicate
// that another object is referencing it.
// The underlaying reference counting in the C library ensures
// that the current valid id of this object is properly closed.
// Copy the id from rhs to this object, then increment the
// reference counter of the id to indicate that another object
// is referencing it.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
IdComponent& IdComponent::operator=( const IdComponent& rhs )
{
// reset the identifier of this object, call appropriate H5Xclose
// handling references to this id
decRefCount();
// copy the data members from the rhs object
@@ -117,17 +106,17 @@ IdComponent& IdComponent::operator=( const IdComponent& rhs )
///\exception H5::IdComponentException when the attempt to close the HDF5
/// object fails
// Description:
// Reset the current id of this object so that the HDF5
// id can be appropriately closed. If only this object references
// its id, its reference counter will be deleted. A new
// reference counter is created for the new HDF5 object id.
// The underlaying reference counting in the C library ensures
// that the current valid id of this object is properly closed.
// Then the object's id is reset to the new id.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
void IdComponent::setId( hid_t new_id )
{
// reset the identifier of this object, call appropriate H5Xclose
// handling references to this id
decRefCount();
// reset object's id to the given id
id = new_id;
}
@@ -177,6 +166,53 @@ IdComponent::~IdComponent() {
// Implementation of protected functions for HDF5 Reference Interface.
//
#ifndef DOXYGEN_SHOULD_SKIP_THIS
//--------------------------------------------------------------------------
// Function: IdComponent default constructor - private
///\brief Default constructor.
// Programmer Binh-Minh Ribler - 2000
//--------------------------------------------------------------------------
IdComponent::IdComponent() : id(-1) {}
//--------------------------------------------------------------------------
// Function: IdComponent::p_get_file_name
// Purpose: Gets the name of the file, in which this object belongs.
// Exception: H5::IdComponentException
// Description:
// This function is protected so that the user applications can
// only have access to its code via allowable classes, namely,
// H5File and H5Object subclasses.
// Programmer Binh-Minh Ribler - Jul, 2004
//--------------------------------------------------------------------------
string IdComponent::p_get_file_name() const
{
// Preliminary call to H5Fget_name to get the length of the file name
ssize_t name_size = H5Fget_name(id, NULL, 0);
// If H5Aget_name returns a negative value, raise an exception,
if( name_size < 0 )
{
throw IdComponentException("IdComponent::p_get_file_name",
"H5Fget_name failed");
}
// Call H5Fget_name again to get the actual file name
char* name_C = new char[name_size+1]; // temporary C-string for C API
name_size = H5Fget_name(id, name_C, name_size+1);
// Check for failure again
if( name_size < 0 )
{
throw IdComponentException("IdComponent::p_get_file_name",
"H5Fget_name failed");
}
// Convert the C file name and return
string file_name(name_C);
delete name_C;
return(file_name);
}
//--------------------------------------------------------------------------
// Function: IdComponent::p_reference (protected)
// Purpose Creates a reference to an HDF5 object or a dataset region.
@@ -247,6 +283,8 @@ hid_t IdComponent::p_get_region(void *ref, H5R_type_t ref_type) const
return(space_id);
}
#endif // DOXYGEN_SHOULD_SKIP_THIS
#ifndef H5_NO_NAMESPACE
}
#endif