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/* -*- 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_Waitsome = PMPIO_Waitsome
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPIO_Waitsome MPIO_Waitsome
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPIO_Waitsome as PMPIO_Waitsome
/* 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_Waitsome(int count, MPIO_Request requests[], int *outcount,
int indices[], MPI_Status *statuses)
{
int i, flag, err;
MPID_THREADPRIV_DECL;
ROMIO_THREAD_CS_ENTER();
if (count == 1) {
err = MPIO_Wait( requests, statuses );
if (!err) {
*outcount = 1;
indices[0] = 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) {
*outcount = MPI_UNDEFINED;
err = MPI_SUCCESS;
goto fn_exit;
}
err = MPI_SUCCESS;
*outcount = 0;
do {
for (i=0; i<count; i++) {
if (requests[i] != MPIO_REQUEST_NULL) {
err = MPIO_Test( &requests[i], &flag, statuses );
if (flag) {
if (!err) {
indices[0] = i;
indices++;
statuses++;
*outcount = *outcount + 1;
}
}
}
}
} while (*outcount == 0);
fn_exit:
ROMIO_THREAD_CS_EXIT();
return err;
}
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