int MPIR_Comm_delete_attr_impl(MPIR_Comm * comm_ptr, MPII_Keyval * keyval_ptr)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Attribute *p, **old_p;
/* Look for attribute. They are ordered by keyval handle */
old_p = &comm_ptr->attributes;
p = comm_ptr->attributes;
while (p) {
if (p->keyval->handle == keyval_ptr->handle) {
break;
}
old_p = &p->next;
p = p->next;
}
/* We can't unlock yet, because we must not free the attribute until
* we know whether the delete function has returned with a 0 status
* code */
if (p) {
int in_use;
/* Run the delete function, if any, and then free the
* attribute storage. Note that due to an ambiguity in the
* standard, if the usr function returns something other than
* MPI_SUCCESS, we should either return the user return code,
* or an mpich error code. The precedent set by the Intel
* test suite says we should return the user return code. So
* we must not ERR_POP here. */
mpi_errno = MPIR_Call_attr_delete(comm_ptr->handle, p);
if (mpi_errno)
goto fn_fail;
/* We found the attribute. Remove it from the list */
*old_p = p->next;
/* Decrement the use of the keyval */
MPII_Keyval_release_ref(p->keyval, &in_use);
if (!in_use) {
MPIR_Handle_obj_free(&MPII_Keyval_mem, p->keyval);
}
MPID_Attr_free(p);
}
fn_exit:
return mpi_errno;
fn_fail:
goto fn_exit;
}
/*@
MPI_Type_delete_attr - Deletes an attribute value associated with a key on
a datatype
Input Parameters:
+ datatype - MPI datatype to which attribute is attached (handle)
- type_keyval - The key value of the deleted attribute (integer)
.N ThreadSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_OTHER
.N MPI_ERR_KEYVAL
@*/
int MPI_Type_delete_attr(MPI_Datatype datatype, int type_keyval)
{
static const char FCNAME[] = "MPI_Type_delete_attr";
int mpi_errno = MPI_SUCCESS;
MPID_Datatype *type_ptr = NULL;
MPID_Attribute *p, **old_p;
MPID_Keyval *keyval_ptr = 0;
MPID_MPI_STATE_DECL(MPID_STATE_MPI_TYPE_DELETE_ATTR);
MPIR_ERRTEST_INITIALIZED_ORDIE();
/* The thread lock prevents a valid attr delete on the same datatype
but in a different thread from causing problems */
MPIU_THREAD_CS_ENTER(ALLFUNC,);
MPID_MPI_FUNC_ENTER(MPID_STATE_MPI_TYPE_DELETE_ATTR);
/* Validate parameters, especially handles needing to be converted */
# ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_DATATYPE(datatype, "datatype", mpi_errno);
MPIR_ERRTEST_KEYVAL(type_keyval, MPID_DATATYPE, "datatype", mpi_errno);
MPIR_ERRTEST_KEYVAL_PERM(type_keyval, mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
# endif
/* Validate parameters and objects (post conversion) */
MPID_Datatype_get_ptr( datatype, type_ptr );
MPID_Keyval_get_ptr( type_keyval, keyval_ptr );
/* Validate parameters and objects (post conversion) */
# ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
/* Validate type_ptr */
MPID_Datatype_valid_ptr( type_ptr, mpi_errno );
/* If type_ptr is not valid, it will be reset to null */
/* Validate keyval_ptr */
if (mpi_errno) goto fn_fail;
}
MPID_END_ERROR_CHECKS;
}
# endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
/* Look for attribute. They are ordered by keyval handle */
old_p = &type_ptr->attributes;
p = type_ptr->attributes;
while (p)
{
if (p->keyval->handle == keyval_ptr->handle)
{
break;
}
old_p = &p->next;
p = p->next;
}
/* We can't unlock yet, because we must not free the attribute until
we know whether the delete function has returned with a 0 status
code */
if (p)
{
/* Run the delete function, if any, and then free the attribute
storage */
mpi_errno = MPIR_Call_attr_delete( datatype, p );
/* --BEGIN ERROR HANDLING-- */
if (!mpi_errno)
{
int in_use;
/* We found the attribute. Remove it from the list */
*old_p = p->next;
/* Decrement the use of the keyval */
MPIR_Keyval_release_ref( p->keyval, &in_use);
if (!in_use)
{
MPIU_Handle_obj_free( &MPID_Keyval_mem, p->keyval );
}
MPID_Attr_free(p);
}
/* --END ERROR HANDLING-- */
}
if (mpi_errno != MPI_SUCCESS) goto fn_fail;
/* ... end of body of routine ... */
fn_exit:
MPID_MPI_FUNC_EXIT(MPID_STATE_MPI_TYPE_DELETE_ATTR);
MPIU_THREAD_CS_EXIT(ALLFUNC,);
return mpi_errno;
fn_fail:
/* --BEGIN ERROR HANDLING-- */
# ifdef HAVE_ERROR_CHECKING
{
mpi_errno = MPIR_Err_create_code(
mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_type_delete_attr",
"**mpi_type_delete_attr %D %d", datatype, type_keyval);
}
# endif
mpi_errno = MPIR_Err_return_comm( NULL, FCNAME, mpi_errno );
goto fn_exit;
/* --END ERROR HANDLING-- */
}
