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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
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/*
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*
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* (C) 2001 by Argonne National Laboratory.
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* See COPYRIGHT in top-level directory.
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*/
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#include "mpiimpl.h"
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#include "attr.h"
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/* -- Begin Profiling Symbol Block for routine MPI_Type_get_attr */
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#if defined(HAVE_PRAGMA_WEAK)
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#pragma weak MPI_Type_get_attr = PMPI_Type_get_attr
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#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
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#pragma _HP_SECONDARY_DEF PMPI_Type_get_attr MPI_Type_get_attr
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#elif defined(HAVE_PRAGMA_CRI_DUP)
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#pragma _CRI duplicate MPI_Type_get_attr as PMPI_Type_get_attr
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#elif defined(HAVE_WEAK_ATTRIBUTE)
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int MPI_Type_get_attr(MPI_Datatype datatype, int type_keyval, void *attribute_val, int *flag)
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__attribute__ ((weak, alias("PMPI_Type_get_attr")));
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#endif
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/* -- End Profiling Symbol Block */
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/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build
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the MPI routines */
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#ifndef MPICH_MPI_FROM_PMPI
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#undef MPI_Type_get_attr
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#define MPI_Type_get_attr PMPI_Type_get_attr
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#undef FUNCNAME
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#define FUNCNAME MPII_Type_get_attr
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#undef FCNAME
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#define FCNAME MPL_QUOTE(FUNCNAME)
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int MPII_Type_get_attr(MPI_Datatype datatype, int type_keyval, void *attribute_val,
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int *flag, MPIR_Attr_type outAttrType)
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{
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int mpi_errno = MPI_SUCCESS;
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MPIR_Datatype *type_ptr = NULL;
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MPIR_Attribute *p;
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MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPIR_TYPE_GET_ATTR);
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MPIR_ERRTEST_INITIALIZED_ORDIE();
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MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
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MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPIR_TYPE_GET_ATTR);
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/* Validate parameters, especially handles needing to be converted */
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#ifdef HAVE_ERROR_CHECKING
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{
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MPID_BEGIN_ERROR_CHECKS;
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{
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MPIR_ERRTEST_DATATYPE(datatype, "datatype", mpi_errno);
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MPIR_ERRTEST_KEYVAL(type_keyval, MPIR_DATATYPE, "datatype", mpi_errno);
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}
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MPID_END_ERROR_CHECKS;
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}
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#endif
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/* Convert MPI object handles to object pointers */
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MPIR_Datatype_get_ptr(datatype, type_ptr);
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/* Validate parameters and objects (post conversion) */
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#ifdef HAVE_ERROR_CHECKING
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{
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MPID_BEGIN_ERROR_CHECKS;
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{
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/* Validate datatype pointer */
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MPIR_Datatype_valid_ptr(type_ptr, mpi_errno);
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/* If type_ptr is not valid, it will be reset to null */
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if (mpi_errno)
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goto fn_fail;
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}
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MPID_END_ERROR_CHECKS;
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}
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#endif /* HAVE_ERROR_CHECKING */
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/* ... body of routine ... */
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*flag = 0;
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p = type_ptr->attributes;
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while (p) {
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if (p->keyval->handle == type_keyval) {
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*flag = 1;
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if (outAttrType == MPIR_ATTR_PTR) {
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if (p->attrType == MPIR_ATTR_INT) {
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/* This is the tricky case: if the system is
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* bigendian, and we have to return a pointer to
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* an int, then we may need to point to the
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* correct location in the word. */
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#if defined(WORDS_LITTLEENDIAN) || (SIZEOF_VOID_P == SIZEOF_INT)
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*(void **) attribute_val = &(p->value);
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#else
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int *p_loc = (int *) &(p->value);
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#if SIZEOF_VOID_P == 2 * SIZEOF_INT
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p_loc++;
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#else
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#error Expected sizeof(void*) to be either sizeof(int) or 2*sizeof(int)
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#endif
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*(void **) attribute_val = p_loc;
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#endif
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} else if (p->attrType == MPIR_ATTR_AINT) {
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*(void **) attribute_val = &(p->value);
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} else {
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*(void **) attribute_val = (void *) (intptr_t) (p->value);
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}
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} else
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*(void **) attribute_val = (void *) (intptr_t) (p->value);
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break;
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}
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p = p->next;
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}
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/* ... end of body of routine ... */
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#ifdef HAVE_ERROR_CHECKING
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fn_exit:
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#endif
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MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPIR_TYPE_GET_ATTR);
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MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
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return mpi_errno;
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/* --BEGIN ERROR HANDLING-- */
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#ifdef HAVE_ERROR_CHECKING
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fn_fail:
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{
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mpi_errno =
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MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
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"**mpir_type_get_attr", "**mpir_type_get_attr %D %d %p %p",
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datatype, type_keyval, attribute_val, flag);
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}
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mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);
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goto fn_exit;
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#endif
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/* --END ERROR HANDLING-- */
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}
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#endif
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#undef FUNCNAME
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#define FUNCNAME MPI_Type_get_attr
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#undef FCNAME
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#define FCNAME MPL_QUOTE(FUNCNAME)
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/*@
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MPI_Type_get_attr - Retrieves attribute value by key
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Input Parameters:
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+ datatype - datatype to which the attribute is attached (handle)
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- type_keyval - key value (integer)
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Output Parameters:
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+ attribute_val - attribute value, unless flag = false
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- flag - false if no attribute is associated with the key (logical)
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Notes:
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Attributes must be extracted from the same language as they were inserted
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in with 'MPI_Type_set_attr'. The notes for C and Fortran below explain
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why.
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Notes for C:
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Even though the 'attr_value' argument is declared as 'void *', it is
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really the address of a void pointer. See the rationale in the
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standard for more details.
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.N ThreadSafe
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.N Fortran
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.N Errors
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.N MPI_SUCCESS
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.N MPI_ERR_KEYVAL
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.N MPI_ERR_ARG
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@*/
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int MPI_Type_get_attr(MPI_Datatype datatype, int type_keyval, void *attribute_val, int *flag)
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{
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int mpi_errno = MPI_SUCCESS;
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MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_TYPE_GET_ATTR);
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MPIR_ERRTEST_INITIALIZED_ORDIE();
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MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_TYPE_GET_ATTR);
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/* ... body of routine ... */
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mpi_errno = MPII_Type_get_attr(datatype, type_keyval, attribute_val, flag, MPIR_ATTR_PTR);
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if (mpi_errno)
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goto fn_fail;
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/* ... end of body of routine ... */
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fn_exit:
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MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_TYPE_GET_ATTR);
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return mpi_errno;
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/* --BEGIN ERROR HANDLING-- */
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fn_fail:
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#ifdef HAVE_ERROR_CHECKING
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{
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mpi_errno =
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MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
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"**mpi_type_get_attr", "**mpi_type_get_attr %D %d %p %p", datatype,
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type_keyval, attribute_val, flag);
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}
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#endif
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mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);
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goto fn_exit;
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/* --END ERROR HANDLING-- */
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}
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