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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "mpioimpl.h"
#ifdef HAVE_WEAK_SYMBOLS
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPIO_Waitany = PMPIO_Waitany
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPIO_Waitany MPIO_Waitany
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPIO_Waitany as PMPIO_Waitany
/* 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_Waitany(int count, MPIO_Request requests[], int *index, MPI_Status * status)
{
int i, flag, err;
ROMIO_THREAD_CS_ENTER();
if (count == 1) {
err = MPIO_Wait(requests, 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;
do {
flag = 0;
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;
}
}
}
} while (flag == 0);
fn_exit:
ROMIO_THREAD_CS_EXIT();
return err;
}
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