ec7b60d501
* Implement win_lock and win_unlock in the pt2pt component. Not well tested, but appears to move bits if properly motivated... This commit was SVN r8922.
64 строки
2.3 KiB
C
64 строки
2.3 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdio.h>
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#include "mpi/c/bindings.h"
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#include "win/win.h"
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#include "mca/osc/osc.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Win_lock = PMPI_Win_lock
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Win_lock";
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int MPI_Win_lock(int lock_type, int rank, int assert, MPI_Win win)
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{
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int rc;
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if (MPI_PARAM_CHECK) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (ompi_win_invalid(win)) {
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return OMPI_ERRHANDLER_INVOKE(win, MPI_ERR_WIN, FUNC_NAME);
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} else if (lock_type != MPI_LOCK_EXCLUSIVE &&
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lock_type != MPI_LOCK_SHARED) {
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return OMPI_ERRHANDLER_INVOKE(win, MPI_ERR_LOCKTYPE, FUNC_NAME);
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} else if (ompi_win_peer_invalid(win, rank)) {
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return OMPI_ERRHANDLER_INVOKE(win, MPI_ERR_RANK, FUNC_NAME);
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} else if (0 != (assert & ~(MPI_MODE_NOCHECK))) {
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return OMPI_ERRHANDLER_INVOKE(win, MPI_ERR_ASSERT, FUNC_NAME);
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} else if (0 != (ompi_win_get_mode(win) &
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(OMPI_WIN_ACCESS_EPOCH | OMPI_WIN_EXPOSE_EPOCH))) {
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/* can't be in either an access or exposure epoch (even a lock one)*/
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return OMPI_ERRHANDLER_INVOKE(win, MPI_ERR_RMA_CONFLICT, FUNC_NAME);
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} else if (! ompi_win_allow_locks(win)) {
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return OMPI_ERRHANDLER_INVOKE(win, MPI_ERR_RMA_SYNC, FUNC_NAME);
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}
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}
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rc = win->w_osc_module->osc_lock(lock_type, rank, assert, win);
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OMPI_ERRHANDLER_RETURN(rc, win, rc, FUNC_NAME);
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}
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