/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */

/*

 *

 *   Copyright (C) 2003 University of Chicago.

 *   See COPYRIGHT notice in top-level directory.

 */

#include "mpioimpl.h"

#ifdef HAVE_WEAK_SYMBOLS

#if defined(HAVE_PRAGMA_WEAK)

#pragma weak MPIO_Testany = PMPIO_Testany

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPIO_Testany MPIO_Testany

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPIO_Testany as PMPIO_Testany

/* end of weak pragmas */

#endif

/* Include mapping from MPI->PMPI */

#define MPIO_BUILD_PROFILING

#include "mpioprof.h"

#endif

/*

  This is a temporary function until we switch to using MPI-2's generalized

  requests.

*/

int MPIO_Testany(int count, MPIO_Request requests[], int *index, int *flag, MPI_Status * status)

{

    int i, err;

    ROMIO_THREAD_CS_ENTER();

    if (count == 1) {

        err = MPIO_Test(requests, flag, status);

        if (!err)

            *index = 0;

        goto fn_exit;

    }

    /* Check for no active requests */

    for (i = 0; i < count; i++) {

        if (requests[i] != MPIO_REQUEST_NULL) {

            break;

        }

    }

    if (i == count) {

        *index = MPI_UNDEFINED;

#ifdef MPICH

        /* need to set empty status */

        if (status != MPI_STATUS_IGNORE) {

            status->MPI_SOURCE = MPI_ANY_SOURCE;

            status->MPI_TAG = MPI_ANY_TAG;

            MPIR_STATUS_SET_COUNT(*status, 0);

            MPIR_STATUS_SET_CANCEL_BIT(*status, 0);

        }

#endif

        err = MPI_SUCCESS;

        goto fn_exit;

    }

    err = MPI_SUCCESS;

    for (i = 0; i < count; i++) {

        if (requests[i] != MPIO_REQUEST_NULL) {

            err = MPIO_Test(&requests[i], flag, status);

            if (*flag) {

                if (!err)

                    *index = i;

                break;

            }

        }

    }

  fn_exit:

    ROMIO_THREAD_CS_EXIT();

    return err;

}