/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpiimpl.h"
/* -- Begin Profiling Symbol Block for routine MPI_Win_detach */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Win_detach = PMPI_Win_detach
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Win_detach MPI_Win_detach
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Win_detach as PMPI_Win_detach
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Win_detach(MPI_Win win, const void *base) __attribute__ ((weak, alias("PMPI_Win_detach")));
#endif
/* -- End Profiling Symbol Block */
/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build
the MPI routines */
#ifndef MPICH_MPI_FROM_PMPI
#undef MPI_Win_detach
#define MPI_Win_detach PMPI_Win_detach
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Win_detach
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Win_detach - Detach memory from a dynamic window
Detaches a previously attached memory region beginning at base. The arguments
base and win must match the arguments passed to a previous call to
'MPI_Win_attach'.
Input Parameters:
+ base - initial address of memory to be detached
- win - window object used for communication (handle)
Notes:
Memory also becomes detached when the associated dynamic memory window is freed.
.N ThreadSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_ARG
.N MPI_ERR_COUNT
.N MPI_ERR_RANK
.N MPI_ERR_TYPE
.N MPI_ERR_WIN
.seealso: MPI_Win_create_dynamic MPI_Win_attach
@*/
int MPI_Win_detach(MPI_Win win, const void *base)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Win *win_ptr = NULL;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_WIN_DETACH);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_RMA_ENTER(MPID_STATE_MPI_WIN_DETACH);
/* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_WIN(win, mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* Convert MPI object handles to object pointers */
MPIR_Win_get_ptr(win, win_ptr);
/* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
/* Validate win_ptr */
MPIR_Win_valid_ptr(win_ptr, mpi_errno);
if (mpi_errno)
goto fn_fail;
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
if (base == NULL)
goto fn_exit;
mpi_errno = MPID_Win_detach(win_ptr, base);
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
/* ... end of body of routine ... */
fn_exit:
MPIR_FUNC_TERSE_RMA_EXIT(MPID_STATE_MPI_WIN_DETACH);
MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
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_win_detach", "**mpi_win_detach %W %p", win, base);
}
#endif
mpi_errno = MPIR_Err_return_win(win_ptr, FCNAME, mpi_errno);
goto fn_exit;
/* --END ERROR HANDLING-- */
}