/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
 *  (C) 2005 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

#ifndef MPICH_DLL_DEFS_H_INCLUDED
#define MPICH_DLL_DEFS_H_INCLUDED

/***********************************************************************
 * Information associated with a specific executable image
 */
typedef struct {
    const struct mqs_image_callbacks *image_callbacks;  /* Functions needed here */

    /* in the embedded MPI_Status object */
    int count_offs;
    int MPI_SOURCE_offs;
    int MPI_TAG_offs;

    /* Fields in MPIR_Comm_list */
    int sequence_number_offs;
    int comm_head_offs;

    /* Fields in MPIR_Comm */
    int comm_rsize_offs;
    int lrank_to_grank_offs;
    int comm_rank_offs;
    int comm_context_id_offs;
    int comm_recvcontext_id_offs;
    int comm_next_offs;
    int comm_name_offs;

    /* Fields in MPIR_Request (including structures within the request) */
    int req_status_offs;
    int req_cc_offs;
    int req_dev_offs;
    int req_next_offs;
    int req_tag_offs;
    int req_rank_offs;
    int req_context_id_offs;
    int req_user_buf_offs;
    int req_user_count_offs;
    int req_datatype_offs;

    /* Fields in MPIR_Sendq */
    int sendq_next_offs;
    int sendq_tag_offs;
    int sendq_rank_offs;
    int sendq_context_id_offs;
    int sendq_req_offs;
} mpich_image_info;

/***********************************************************************
 * Information associated with a specific process
 */

typedef struct group_t {
    mqs_taddr_t table_base;     /* Where was it in the process  */
    int ref_count;              /* How many references to us */
    int entries;                /* How many entries */
    int *local_to_global;       /* The translation table */
} group_t;

/* Information for a single process, a list of communicators, some
 * useful addresses, and the state of the iterators.
 */
typedef struct {
    const struct mqs_process_callbacks *process_callbacks;      /* Functions needed here */

    struct communicator_t *communicator_list;   /* List of communicators in the process */
    mqs_target_type_sizes sizes;        /* Process architecture information */

    /* Addresses in the target process */
    mqs_taddr_t posted_base;    /* Where to find the message queues */
    mqs_taddr_t unexpected_base;
    mqs_taddr_t sendq_base;     /* Where to find the send queue */
    mqs_taddr_t commlist_base;  /* Where to find the list of communicators */

    /* Other info we need to remember about it */
    mqs_tword_t communicator_sequence;
    int has_sendq;

    /* State for the iterators */
    struct communicator_t *current_communicator;        /* Easy, we're walking a simple list */

    mqs_taddr_t next_msg;       /* And state for the message iterator */
    mqs_op_class what;          /* What queue are we looking on */
} mpich_process_info;

#endif /* MPICH_DLL_DEFS_H_INCLUDED */