include/sys/epoll.h

   1 /*
   2  * This file and its contents are supplied under the terms of the
   3  * Common Development and Distribution License ("CDDL"), version 1.0.
   4  * You may only use this file in accordance with the terms of version
   5  * 1.0 of the CDDL.
   6  *
   7  * A full copy of the text of the CDDL should have accompanied this
   8  * source.  A copy of the CDDL is also available via the Internet at
   9  * http://www.illumos.org/license/CDDL.
  10  */
  11
  12 /*
  13  * Copyright (c) 2014, Joyent, Inc.  All rights reserved.
  14  */
  15
  16 #ifndef _SYS_EPOLL_H
  17 #define _SYS_EPOLL_H
  18
  19 #include <sys/types.h>
  20 #include <sys/poll.h>
  21
  22 #ifdef  __cplusplus
  23 extern "C" {
  24 #endif
  25
  26 typedef union epoll_data {
  27         void            *ptr;
  28         int             fd;
  29         uint32_t        u32;
  30         uint64_t        u64;
  31 } epoll_data_t;
  32
  33 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
  34 #pragma pack(4)
  35 #endif
  36
  37 typedef struct epoll_event {
  38         uint32_t        events;         /* events */
  39         epoll_data_t    data;           /* user-specified data */
  40 } epoll_event_t;
  41
  42 #if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
  43 #pragma pack()
  44 #endif
  45
  46 /*
  47  * Define the EPOLL* constants in terms of their poll(2)/poll(7) equivalents.
  48  * Note that the values match the equivalents in Linux to allow for any binary
  49  * compatibility layers to not need to translate them.
  50  */
  51 #define EPOLLIN         0x0001
  52 #define EPOLLPRI        0x0002
  53 #define EPOLLOUT        0x0004
  54 #define EPOLLRDNORM     0x0040
  55 #define EPOLLRDBAND     0x0080
  56 #define EPOLLWRNORM     0x0100
  57 #define EPOLLWRBAND     0x0200
  58 #define EPOLLMSG        0x0400          /* not used */
  59 #define EPOLLERR        0x0008
  60 #define EPOLLHUP        0x0010
  61 #define EPOLLRDHUP      0x2000
  62
  63 #define EPOLLWAKEUP     (1UL << 29)     /* no meaning; silently ignored */
  64 #define EPOLLONESHOT    (1UL << 30)     /* translated to POLLONESHOT */
  65 #define EPOLLET         (1UL << 31)     /* translated to POLLET */
  66
  67 #define EPOLL_CTL_ADD   1
  68 #define EPOLL_CTL_DEL   2
  69 #define EPOLL_CTL_MOD   3
  70
  71 #define EPOLL_CLOEXEC   02000000
  72
  73 #if !defined(_KERNEL)
  74
  75 extern int epoll_create(int size);
  76 extern int epoll_create1(int flags);
  77 extern int epoll_ctl(int epfd, int op, int fd, struct epoll_event *event);
  78 extern int epoll_wait(int epfd, struct epoll_event *events,
  79     int maxevents, int timeout);
  80 extern int epoll_pwait(int epfd, struct epoll_event *events,
  81     int maxevents, int timeout, const sigset_t *sigmask);
  82
  83 #endif /* !_KERNEL */
  84
  85 #ifdef  __cplusplus
  86 }
  87 #endif
  88
  89 #endif  /* _SYS_EPOLL_H */