/* -*- 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_get_attr */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Win_get_attr = PMPI_Win_get_attr
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Win_get_attr MPI_Win_get_attr
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Win_get_attr as PMPI_Win_get_attr
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Win_get_attr(MPI_Win win, int win_keyval, void *attribute_val, int *flag)
__attribute__ ((weak, alias("PMPI_Win_get_attr")));
#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_get_attr
#define MPI_Win_get_attr PMPI_Win_get_attr
#undef FUNCNAME
#define FUNCNAME MPII_Win_get_attr
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPII_Win_get_attr(MPI_Win win, int win_keyval, void *attribute_val,
int *flag, MPIR_Attr_type outAttrType)
{
int mpi_errno = MPI_SUCCESS;
MPIR_Win *win_ptr = NULL;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPIR_WIN_GET_ATTR);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPIR_WIN_GET_ATTR);
/* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_WIN(win, mpi_errno);
MPIR_ERRTEST_KEYVAL(win_keyval, MPIR_WIN, "window", mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif
/* 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 win_ptr is not valid, it will be reset to null */
MPIR_ERRTEST_ARGNULL(attribute_val, "attribute_val", mpi_errno);
MPIR_ERRTEST_ARGNULL(flag, "flag", mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
/* Check for builtin attribute */
/* This code is ok for correct programs, but it would be better
* to copy the values from the per-process block and pass the user
* a pointer to a copy */
/* Note that if we are called from Fortran, we must return the values,
* not the addresses, of these attributes */
if (HANDLE_GET_KIND(win_keyval) == HANDLE_KIND_BUILTIN) {
void **attr_val_p = (void **) attribute_val;
#ifdef HAVE_FORTRAN_BINDING
/* Note that this routine only has a Fortran 90 binding,
* so the attribute value is an address-sized int */
intptr_t *attr_int = (intptr_t *) attribute_val;
#endif
*flag = 1;
/*
* The C versions of the attributes return the address of a
* *COPY* of the value (to prevent the user from changing it)
* and the Fortran versions provide the actual value (as a Fint)
*/
switch (win_keyval) {
case MPI_WIN_BASE:
*attr_val_p = win_ptr->base;
break;
case MPI_WIN_SIZE:
win_ptr->copySize = win_ptr->size;
*attr_val_p = &win_ptr->copySize;
break;
case MPI_WIN_DISP_UNIT:
win_ptr->copyDispUnit = win_ptr->disp_unit;
*attr_val_p = &win_ptr->copyDispUnit;
break;
case MPI_WIN_CREATE_FLAVOR:
win_ptr->copyCreateFlavor = win_ptr->create_flavor;
*attr_val_p = &win_ptr->copyCreateFlavor;
break;
case MPI_WIN_MODEL:
win_ptr->copyModel = win_ptr->model;
*attr_val_p = &win_ptr->copyModel;
break;
#ifdef HAVE_FORTRAN_BINDING
case MPII_ATTR_C_TO_FORTRAN(MPI_WIN_BASE):
/* The Fortran routine that matches this routine should
* provide an address-sized integer, not an MPI_Fint */
*attr_int = MPIR_VOID_PTR_CAST_TO_MPI_AINT(win_ptr->base);
break;
case MPII_ATTR_C_TO_FORTRAN(MPI_WIN_SIZE):
/* We do not need to copy because we return the value,
* not a pointer to the value */
*attr_int = win_ptr->size;
break;
case MPII_ATTR_C_TO_FORTRAN(MPI_WIN_DISP_UNIT):
/* We do not need to copy because we return the value,
* not a pointer to the value */
*attr_int = win_ptr->disp_unit;
break;
case MPII_ATTR_C_TO_FORTRAN(MPI_WIN_CREATE_FLAVOR):
*attr_int = win_ptr->create_flavor;
break;
case MPII_ATTR_C_TO_FORTRAN(MPI_WIN_MODEL):
*attr_int = win_ptr->model;
break;
#endif
default:
MPIR_Assert(FALSE);
break;
}
} else {
MPIR_Attribute *p = win_ptr->attributes;
*flag = 0;
while (p) {
if (p->keyval->handle == win_keyval) {
*flag = 1;
if (outAttrType == MPIR_ATTR_PTR) {
if (p->attrType == MPIR_ATTR_INT) {
/* This is the tricky case: if the system is
* bigendian, and we have to return a pointer to
* an int, then we may need to point to the
* correct location in the word. */
#if defined(WORDS_LITTLEENDIAN) || (SIZEOF_VOID_P == SIZEOF_INT)
*(void **) attribute_val = &(p->value);
#else
int *p_loc = (int *) &(p->value);
#if SIZEOF_VOID_P == 2 * SIZEOF_INT
p_loc++;
#else
#error Expected sizeof(void*) to be either sizeof(int) or 2*sizeof(int)
#endif
*(void **) attribute_val = p_loc;
#endif
} else if (p->attrType == MPIR_ATTR_AINT) {
*(void **) attribute_val = &(p->value);
} else {
*(void **) attribute_val = (void *) (intptr_t) (p->value);
}
} else
*(void **) attribute_val = (void *) (intptr_t) (p->value);
break;
}
p = p->next;
}
}
/* ... end of body of routine ... */
#ifdef HAVE_ERROR_CHECKING
fn_exit:
#endif
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPIR_WIN_GET_ATTR);
MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
fn_fail:
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpir_wingetattr", "**mpir_wingetattr %W %d %p %p", win,
win_keyval, attribute_val, flag);
}
mpi_errno = MPIR_Err_return_win(win_ptr, FCNAME, mpi_errno);
goto fn_exit;
#endif
/* --END ERROR HANDLING-- */
}
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Win_get_attr
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Win_get_attr - Get attribute cached on an MPI window object
Input Parameters:
+ win - window to which the attribute is attached (handle)
- win_keyval - key value (integer)
Output Parameters:
+ attribute_val - attribute value, unless flag is false
- flag - false if no attribute is associated with the key (logical)
Notes:
The following attributes are predefined for all MPI Window objects\:
+ MPI_WIN_BASE - window base address.
. MPI_WIN_SIZE - window size, in bytes.
- MPI_WIN_DISP_UNIT - displacement unit associated with the window.
.N ThreadSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_WIN
.N MPI_ERR_KEYVAL
.N MPI_ERR_OTHER
@*/
int MPI_Win_get_attr(MPI_Win win, int win_keyval, void *attribute_val, int *flag)
{
int mpi_errno = MPI_SUCCESS;
#ifdef HAVE_ERROR_CHECKING
MPIR_Win *win_ptr = NULL;
#endif
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_WIN_GET_ATTR);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_WIN_GET_ATTR);
/* ... body of routine ... */
mpi_errno = MPII_Win_get_attr(win, win_keyval, attribute_val, flag, MPIR_ATTR_PTR);
if (mpi_errno)
goto fn_fail;
/* ... end of body of routine ... */
fn_exit:
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_WIN_GET_ATTR);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
fn_fail:
#ifdef HAVE_ERROR_CHECKING
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_win_get_attr", "**mpi_win_get_attr %W %d %p %p", win,
win_keyval, attribute_val, flag);
}
MPIR_Win_get_ptr(win, win_ptr);
mpi_errno = MPIR_Err_return_win(win_ptr, FCNAME, mpi_errno);
#endif
goto fn_exit;
/* --END ERROR HANDLING-- */
}