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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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/* -- Begin Profiling Symbol Block for routine MPI_Win_attach */
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#if defined(HAVE_PRAGMA_WEAK)
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#pragma weak MPI_Win_attach = PMPI_Win_attach
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#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
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#pragma _HP_SECONDARY_DEF PMPI_Win_attach MPI_Win_attach
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#elif defined(HAVE_PRAGMA_CRI_DUP)
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#pragma _CRI duplicate MPI_Win_attach as PMPI_Win_attach
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#elif defined(HAVE_WEAK_ATTRIBUTE)
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int MPI_Win_attach(MPI_Win win, void *base, MPI_Aint size)
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__attribute__ ((weak, alias("PMPI_Win_attach")));
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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_Win_attach
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#define MPI_Win_attach PMPI_Win_attach
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#endif
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#undef FUNCNAME
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#define FUNCNAME MPI_Win_attach
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#undef FCNAME
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#define FCNAME MPL_QUOTE(FUNCNAME)
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/*@
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MPI_Win_attach - Attach memory to a dynamic window.
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Attaches a local memory region beginning at base for remote access within the
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given window. The memory region specified must not contain any part that is
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already attached to the window win, that is, attaching overlapping memory
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concurrently within the same window is erroneous. The argument win must be a
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window that was created with 'MPI_Win_create_dynamic'. Multiple (but
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non-overlapping) memory regions may be attached to the same window.
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Input Parameters:
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+ size - size of memory to be attached in bytes
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. base - initial address of memory to be attached
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- win - window object used for communication (handle)
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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_ARG
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.N MPI_ERR_COUNT
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.N MPI_ERR_RANK
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.N MPI_ERR_TYPE
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.N MPI_ERR_WIN
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.seealso: MPI_Win_create_dynamic MPI_Win_detach
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@*/
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int MPI_Win_attach(MPI_Win win, void *base, MPI_Aint size)
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{
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int mpi_errno = MPI_SUCCESS;
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MPIR_Win *win_ptr = NULL;
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MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_WIN_ATTACH);
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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_RMA_ENTER(MPID_STATE_MPI_WIN_ATTACH);
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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_WIN(win, mpi_errno);
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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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/* Convert MPI object handles to object pointers */
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MPIR_Win_get_ptr(win, win_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 win_ptr */
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MPIR_Win_valid_ptr(win_ptr, mpi_errno);
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if (mpi_errno)
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goto fn_fail;
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if (size < 0)
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mpi_errno = MPIR_Err_create_code(MPI_SUCCESS,
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MPIR_ERR_RECOVERABLE,
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FCNAME, __LINE__,
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MPI_ERR_SIZE, "**rmasize", "**rmasize %d", size);
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if (size > 0 && base == NULL)
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mpi_errno = MPIR_Err_create_code(MPI_SUCCESS,
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MPIR_ERR_RECOVERABLE,
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FCNAME, __LINE__,
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MPI_ERR_ARG,
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"**nullptr",
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"**nullptr %s",
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"NULL base pointer is invalid when size is nonzero");
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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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if (size == 0)
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goto fn_exit;
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mpi_errno = MPID_Win_attach(win_ptr, base, size);
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if (mpi_errno != MPI_SUCCESS)
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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_RMA_EXIT(MPID_STATE_MPI_WIN_ATTACH);
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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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fn_fail:
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/* --BEGIN ERROR HANDLING-- */
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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_win_attach", "**mpi_win_attach %W %p %d", size, base, win);
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}
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#endif
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mpi_errno = MPIR_Err_return_win(win_ptr, 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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