node_subscr.h 2.6 KB

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  1. /*
  2. * net/tipc/node_subscr.h: Include file for TIPC "node down" subscription handling
  3. *
  4. * Copyright (c) 1995-2006, Ericsson AB
  5. * Copyright (c) 2005, Wind River Systems
  6. * All rights reserved.
  7. *
  8. * Redistribution and use in source and binary forms, with or without
  9. * modification, are permitted provided that the following conditions are met:
  10. *
  11. * 1. Redistributions of source code must retain the above copyright
  12. * notice, this list of conditions and the following disclaimer.
  13. * 2. Redistributions in binary form must reproduce the above copyright
  14. * notice, this list of conditions and the following disclaimer in the
  15. * documentation and/or other materials provided with the distribution.
  16. * 3. Neither the names of the copyright holders nor the names of its
  17. * contributors may be used to endorse or promote products derived from
  18. * this software without specific prior written permission.
  19. *
  20. * Alternatively, this software may be distributed under the terms of the
  21. * GNU General Public License ("GPL") version 2 as published by the Free
  22. * Software Foundation.
  23. *
  24. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  25. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  26. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  27. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  28. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  29. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  30. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  31. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  32. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  33. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  34. * POSSIBILITY OF SUCH DAMAGE.
  35. */
  36. #ifndef _TIPC_NODE_SUBSCR_H
  37. #define _TIPC_NODE_SUBSCR_H
  38. #include "addr.h"
  39. typedef void (*net_ev_handler) (void *usr_handle);
  40. /**
  41. * struct node_subscr - "node down" subscription entry
  42. * @node: ptr to node structure of interest (or NULL, if none)
  43. * @handle_node_down: routine to invoke when node fails
  44. * @usr_handle: argument to pass to routine when node fails
  45. * @nodesub_list: adjacent entries in list of subscriptions for the node
  46. */
  47. struct node_subscr {
  48. struct node *node;
  49. net_ev_handler handle_node_down;
  50. void *usr_handle;
  51. struct list_head nodesub_list;
  52. };
  53. void tipc_nodesub_subscribe(struct node_subscr *node_sub, u32 addr,
  54. void *usr_handle, net_ev_handler handle_down);
  55. void tipc_nodesub_unsubscribe(struct node_subscr *node_sub);
  56. #endif