subscr.h 3.1 KB

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  1. /*
  2. * net/tipc/subscr.h: Include file for TIPC subscription service
  3. *
  4. * Copyright (c) 2003-2005, Ericsson Research Canada
  5. * Copyright (c) 2005, Wind River Systems
  6. * Copyright (c) 2005-2006, Ericsson AB
  7. * All rights reserved.
  8. *
  9. * Redistribution and use in source and binary forms, with or without
  10. * modification, are permitted provided that the following conditions are met:
  11. *
  12. * 1. Redistributions of source code must retain the above copyright
  13. * notice, this list of conditions and the following disclaimer.
  14. * 2. Redistributions in binary form must reproduce the above copyright
  15. * notice, this list of conditions and the following disclaimer in the
  16. * documentation and/or other materials provided with the distribution.
  17. * 3. Neither the names of the copyright holders nor the names of its
  18. * contributors may be used to endorse or promote products derived from
  19. * this software without specific prior written permission.
  20. *
  21. * Alternatively, this software may be distributed under the terms of the
  22. * GNU General Public License ("GPL") version 2 as published by the Free
  23. * Software Foundation.
  24. *
  25. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  26. * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27. * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  28. * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  29. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31. * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32. * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34. * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35. * POSSIBILITY OF SUCH DAMAGE.
  36. */
  37. #ifndef _TIPC_SUBSCR_H
  38. #define _TIPC_SUBSCR_H
  39. /**
  40. * struct subscription - TIPC network topology subscription object
  41. * @seq: name sequence associated with subscription
  42. * @timeout: duration of subscription (in ms)
  43. * @filter: event filtering to be done for subscription
  44. * @evt: template for events generated by subscription
  45. * @subscription_list: adjacent subscriptions in subscriber's subscription list
  46. * @nameseq_list: adjacent subscriptions in name sequence's subscription list
  47. * @timer_ref: reference to timer governing subscription duration (may be NULL)
  48. * @owner: pointer to subscriber object associated with this subscription
  49. */
  50. struct subscription {
  51. struct tipc_name_seq seq;
  52. u32 timeout;
  53. u32 filter;
  54. struct tipc_event evt;
  55. struct list_head subscription_list;
  56. struct list_head nameseq_list;
  57. struct timer_list timer;
  58. struct subscriber *owner;
  59. };
  60. int subscr_overlap(struct subscription * sub,
  61. u32 found_lower,
  62. u32 found_upper);
  63. void subscr_report_overlap(struct subscription * sub,
  64. u32 found_lower,
  65. u32 found_upper,
  66. u32 event,
  67. u32 port_ref,
  68. u32 node,
  69. int must_report);
  70. int subscr_start(void);
  71. void subscr_stop(void);
  72. #endif