/* -*- 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_Testall = PMPIO_Testall

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPIO_Testall MPIO_Testall

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPIO_Testall as PMPIO_Testall

/* 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_Testall(int count, MPIO_Request requests[], int *flag, MPI_Status statuses[])

{

    int done, i, err;

    ROMIO_THREAD_CS_ENTER();

    if (count == 1) {

        err = MPIO_Test(requests, flag, statuses);

        goto fn_exit;

    }

    /* This is actually very difficult to do.  We can't use MPIO_Test,

     * since we must change the requests only if *ALL* requests are complete

     */

    /* FIXME: THIS IS NOT CORRECT (see above).  But most applications won't

     * care */

    done = 1;

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

        if (requests[i] != MPIO_REQUEST_NULL) {

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

            if (!*flag)

                done = 0;

            if (err)

                goto fn_exit;

        } else {

#ifdef MPICH

            /* need to set empty status */

            if (statuses != MPI_STATUSES_IGNORE) {

                statuses[i].MPI_SOURCE = MPI_ANY_SOURCE;

                statuses[i].MPI_TAG = MPI_ANY_TAG;

                MPIR_STATUS_SET_COUNT(statuses[i], 0);

                MPIR_STATUS_SET_CANCEL_BIT(statuses[i], 0);

            }

#else

            ;

#endif

        }

    }

    *flag = done;

    err = MPI_SUCCESS;

  fn_exit:

    ROMIO_THREAD_CS_EXIT();

    return err;

}