/*
 * Copyright (C) by Argonne National Laboratory
 *     See COPYRIGHT in top-level directory
 */

#ifndef MPIR_COLL_H_INCLUDED
#define MPIR_COLL_H_INCLUDED

#include "coll_impl.h"
#include "coll_algos.h"

/* During init, not all algorithms are safe to use. For example, the csel
 * may not have been initialized. We define a set of fallback routines that
 * are safe to use during init. They are all intra algorithms.
 */
#define MPIR_Barrier_fallback    MPIR_Barrier_intra_dissemination
#define MPIR_Allgather_fallback  MPIR_Allgather_intra_brucks
#define MPIR_Allgatherv_fallback MPIR_Allgatherv_intra_brucks
#define MPIR_Allreduce_fallback  MPIR_Allreduce_intra_recursive_doubling


/* Internal point-to-point communication for collectives */
/* These functions are used in the implementation of collective and
   other internal operations. They are wrappers around MPID send/recv
   functions. They do sends/receives by setting the context offset to
   MPIR_CONTEXT_INTRA(INTER)_COLL. */
int MPIC_Wait(MPIR_Request * request_ptr, MPIR_Errflag_t * errflag);
int MPIC_Probe(int source, int tag, MPI_Comm comm, MPI_Status * status);

int MPIC_Send(const void *buf, MPI_Aint count, MPI_Datatype datatype, int dest, int tag,
              MPIR_Comm * comm_ptr, MPIR_Errflag_t * errflag);
int MPIC_Recv(void *buf, MPI_Aint count, MPI_Datatype datatype, int source, int tag,
              MPIR_Comm * comm_ptr, MPI_Status * status, MPIR_Errflag_t * errflag);
int MPIC_Ssend(const void *buf, MPI_Aint count, MPI_Datatype datatype, int dest, int tag,
               MPIR_Comm * comm_ptr, MPIR_Errflag_t * errflag);
int MPIC_Sendrecv(const void *sendbuf, MPI_Aint sendcount, MPI_Datatype sendtype,
                  int dest, int sendtag, void *recvbuf, MPI_Aint recvcount,
                  MPI_Datatype recvtype, int source, int recvtag,
                  MPIR_Comm * comm_ptr, MPI_Status * status, MPIR_Errflag_t * errflag);
int MPIC_Sendrecv_replace(void *buf, MPI_Aint count, MPI_Datatype datatype,
                          int dest, int sendtag,
                          int source, int recvtag,
                          MPIR_Comm * comm_ptr, MPI_Status * status, MPIR_Errflag_t * errflag);
int MPIC_Isend(const void *buf, MPI_Aint count, MPI_Datatype datatype, int dest, int tag,
               MPIR_Comm * comm_ptr, MPIR_Request ** request, MPIR_Errflag_t * errflag);
int MPIC_Issend(const void *buf, MPI_Aint count, MPI_Datatype datatype, int dest, int tag,
                MPIR_Comm * comm_ptr, MPIR_Request ** request, MPIR_Errflag_t * errflag);
int MPIC_Irecv(void *buf, MPI_Aint count, MPI_Datatype datatype, int source,
               int tag, MPIR_Comm * comm_ptr, MPIR_Request ** request);
int MPIC_Waitall(int numreq, MPIR_Request * requests[], MPI_Status statuses[],
                 MPIR_Errflag_t * errflag);

int MPIR_Reduce_local(const void *inbuf, void *inoutbuf, MPI_Aint count, MPI_Datatype datatype,
                      MPI_Op op);

#endif /* MPIR_COLL_H_INCLUDED */
