eventpoll.h 1.3 KB

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  1. /*
  2. * include/linux/eventpoll.h ( Efficent event polling implementation )
  3. * Copyright (C) 2001,...,2006 Davide Libenzi
  4. *
  5. * This program is free software; you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License as published by
  7. * the Free Software Foundation; either version 2 of the License, or
  8. * (at your option) any later version.
  9. *
  10. * Davide Libenzi <davidel@xmailserver.org>
  11. *
  12. */
  13. #ifndef _LINUX_EVENTPOLL_H
  14. #define _LINUX_EVENTPOLL_H
  15. /* For O_CLOEXEC */
  16. #include <linux/fcntl.h>
  17. #include <linux/types.h>
  18. /* Flags for epoll_create1. */
  19. #define EPOLL_CLOEXEC O_CLOEXEC
  20. /* Valid opcodes to issue to sys_epoll_ctl() */
  21. #define EPOLL_CTL_ADD 1
  22. #define EPOLL_CTL_DEL 2
  23. #define EPOLL_CTL_MOD 3
  24. /* Set the One Shot behaviour for the target file descriptor */
  25. #define EPOLLONESHOT (1 << 30)
  26. /* Set the Edge Triggered behaviour for the target file descriptor */
  27. #define EPOLLET (1 << 31)
  28. /*
  29. * On x86-64 make the 64bit structure have the same alignment as the
  30. * 32bit structure. This makes 32bit emulation easier.
  31. *
  32. * UML/x86_64 needs the same packing as x86_64
  33. */
  34. #ifdef __x86_64__
  35. #define EPOLL_PACKED __attribute__((packed))
  36. #else
  37. #define EPOLL_PACKED
  38. #endif
  39. struct epoll_event {
  40. __u32 events;
  41. __u64 data;
  42. } EPOLL_PACKED;
  43. #endif /* #ifndef _LINUX_EVENTPOLL_H */