ubusd.h

   1 /*
   2  * Copyright (C) 2011-2014 Felix Fietkau <nbd@openwrt.org>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU Lesser General Public License version 2.1
   6  * as published by the Free Software Foundation
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  */
  13
  14 #ifndef __UBUSD_H
  15 #define __UBUSD_H
  16
  17 #include <libubox/list.h>
  18 #include <libubox/uloop.h>
  19 #include <libubox/blobmsg.h>
  20 #include "ubus_common.h"
  21 #include "ubusd_id.h"
  22 #include "ubusd_obj.h"
  23 #include "ubusmsg.h"
  24
  25 #define UBUSD_CLIENT_BACKLOG    32
  26 #define UBUS_OBJ_HASH_BITS      4
  27
  28 extern struct blob_buf b;
  29
  30 struct ubus_msg_buf {
  31         uint32_t refcount; /* ~0: uses external data buffer */
  32         struct ubus_msghdr hdr;
  33         struct blob_attr *data;
  34         int fd;
  35         int len;
  36 };
  37
  38 struct ubus_client {
  39         struct ubus_id id;
  40         struct uloop_fd sock;
  41
  42         struct list_head objects;
  43
  44         struct ubus_msg_buf *tx_queue[UBUSD_CLIENT_BACKLOG];
  45         unsigned int txq_cur, txq_tail, txq_ofs;
  46
  47         struct ubus_msg_buf *pending_msg;
  48         int pending_msg_offset;
  49         int pending_msg_fd;
  50         struct {
  51                 struct ubus_msghdr hdr;
  52                 struct blob_attr data;
  53         } hdrbuf;
  54 };
  55
  56 struct ubus_path {
  57         struct list_head list;
  58         const char name[];
  59 };
  60
  61 struct ubus_msg_buf *ubus_msg_new(void *data, int len, bool shared);
  62 void ubus_msg_send(struct ubus_client *cl, struct ubus_msg_buf *ub, bool free);
  63 void ubus_msg_free(struct ubus_msg_buf *ub);
  64
  65 struct ubus_client *ubusd_proto_new_client(int fd, uloop_fd_handler cb);
  66 void ubusd_proto_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub);
  67 void ubusd_proto_free_client(struct ubus_client *cl);
  68
  69 void ubusd_event_init(void);
  70 void ubusd_event_cleanup_object(struct ubus_object *obj);
  71 void ubusd_send_obj_event(struct ubus_object *obj, bool add);
  72
  73
  74 #endif