subscr.h 3.0 KB

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  1. /*
  2. * net/tipc/subscr.h: Include file for TIPC subscription service
  3. *
  4. * Copyright (c) 2003-2006, 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_SUBSCR_H
  37. #define _TIPC_SUBSCR_H
  38. /**
  39. * struct subscription - TIPC network topology subscription object
  40. * @seq: name sequence associated with subscription
  41. * @timeout: duration of subscription (in ms)
  42. * @filter: event filtering to be done for subscription
  43. * @evt: template for events generated by subscription
  44. * @subscription_list: adjacent subscriptions in subscriber's subscription list
  45. * @nameseq_list: adjacent subscriptions in name sequence's subscription list
  46. * @timer_ref: reference to timer governing subscription duration (may be NULL)
  47. * @owner: pointer to subscriber object associated with this subscription
  48. */
  49. struct subscription {
  50. struct tipc_name_seq seq;
  51. u32 timeout;
  52. u32 filter;
  53. struct tipc_event evt;
  54. struct list_head subscription_list;
  55. struct list_head nameseq_list;
  56. struct timer_list timer;
  57. struct subscriber *owner;
  58. };
  59. int tipc_subscr_overlap(struct subscription * sub,
  60. u32 found_lower,
  61. u32 found_upper);
  62. void tipc_subscr_report_overlap(struct subscription * sub,
  63. u32 found_lower,
  64. u32 found_upper,
  65. u32 event,
  66. u32 port_ref,
  67. u32 node,
  68. int must_report);
  69. int tipc_subscr_start(void);
  70. void tipc_subscr_stop(void);
  71. #endif