/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

#pragma once

/***
  This file is part of systemd.

  Copyright 2013 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <sys/socket.h>
#include <sys/un.h>
#include <netinet/in.h>

#include "hashmap.h"
#include "list.h"
#include "util.h"

#include "sd-bus.h"
#include "bus-error.h"

struct reply_callback {
        sd_message_handler_t callback;
        void *userdata;
        usec_t timeout;
        uint64_t serial;
};

struct filter_callback {
        sd_message_handler_t callback;
        void *userdata;

        LIST_FIELDS(struct filter_callback, callbacks);
};

enum bus_state {
        BUS_OPENING,
        BUS_AUTHENTICATING,
        BUS_HELLO,
        BUS_RUNNING,
        BUS_CLOSED
};

struct sd_bus {
        unsigned n_ref;
        enum bus_state state;
        int fd;
        int message_version;
        bool can_fds:1;
        bool send_hello:1;

        void *rbuffer;
        size_t rbuffer_size;

        sd_bus_message **rqueue;
        unsigned rqueue_size;

        sd_bus_message **wqueue;
        unsigned wqueue_size;
        size_t windex;

        uint64_t serial;

        char *unique_name;

        Hashmap *reply_callbacks;
        LIST_HEAD(struct filter_callback, filter_callbacks);

        union {
                struct sockaddr sa;
                struct sockaddr_un un;
                struct sockaddr_in in;
                struct sockaddr_in6 in6;
        } sockaddr;
        socklen_t sockaddr_size;

        sd_id128_t peer;

        char *address;
        unsigned address_index;

        int last_connect_error;

        struct iovec auth_iovec[3];
        unsigned auth_index;
        size_t auth_size;
        char *auth_uid;
};