libphobos/libdruntime/core/sys/linux/epoll.d

   1 /**
   2  * D header file to interface with the Linux epoll API (http://man7.org/linux/man-pages/man7/epoll.7.html).
   3  * Available since Linux 2.6
   4  *
   5  * Copyright: Copyright Adil Baig 2012.
   6  * License : $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
   7  * Authors  : Adil Baig (github.com/adilbaig)
   8  */
   9 module core.sys.linux.epoll;
  10
  11 version (linux):
  12
  13 extern (C):
  14 @system:
  15 @nogc:
  16 nothrow:
  17
  18 enum
  19 {
  20     EPOLL_CLOEXEC  = 0x80000,
  21     EPOLL_NONBLOCK = 0x800
  22 }
  23
  24 enum
  25 {
  26     EPOLLIN     = 0x001,
  27     EPOLLPRI    = 0x002,
  28     EPOLLOUT    = 0x004,
  29     EPOLLRDNORM = 0x040,
  30     EPOLLRDBAND = 0x080,
  31     EPOLLWRNORM = 0x100,
  32     EPOLLWRBAND = 0x200,
  33     EPOLLMSG    = 0x400,
  34     EPOLLERR    = 0x008,
  35     EPOLLHUP    = 0x010,
  36     EPOLLRDHUP  = 0x2000, // since Linux 2.6.17
  37     EPOLLONESHOT = 1u << 30,
  38     EPOLLET     = 1u << 31
  39 }
  40
  41 /* Valid opcodes ( "op" parameter ) to issue to epoll_ctl().  */
  42 enum
  43 {
  44     EPOLL_CTL_ADD = 1, // Add a file descriptor to the interface.
  45     EPOLL_CTL_DEL = 2, // Remove a file descriptor from the interface.
  46     EPOLL_CTL_MOD = 3, // Change file descriptor epoll_event structure.
  47 }
  48
  49 version (X86)
  50 {
  51     align(1) struct epoll_event
  52     {
  53     align(1):
  54         uint events;
  55         epoll_data_t data;
  56     }
  57 }
  58 else version (X86_64)
  59 {
  60     align(1) struct epoll_event
  61     {
  62     align(1):
  63         uint events;
  64         epoll_data_t data;
  65     }
  66 }
  67 else version (ARM)
  68 {
  69     struct epoll_event
  70     {
  71         uint events;
  72         epoll_data_t data;
  73     }
  74 }
  75 else version (AArch64)
  76 {
  77     struct epoll_event
  78     {
  79         uint events;
  80         epoll_data_t data;
  81     }
  82 }
  83 else version (PPC)
  84 {
  85     struct epoll_event
  86     {
  87         uint events;
  88         epoll_data_t data;
  89     }
  90 }
  91 else version (PPC64)
  92 {
  93     struct epoll_event
  94     {
  95         uint events;
  96         epoll_data_t data;
  97     }
  98 }
  99 else version (MIPS32)
 100 {
 101     struct epoll_event
 102     {
 103         uint events;
 104         epoll_data_t data;
 105     }
 106 }
 107 else version (MIPS64)
 108 {
 109     struct epoll_event
 110     {
 111         uint events;
 112         epoll_data_t data;
 113     }
 114 }
 115 else version (SPARC64)
 116 {
 117     struct epoll_event
 118     {
 119         uint events;
 120         epoll_data_t data;
 121     }
 122 }
 123 else version (SystemZ)
 124 {
 125     struct epoll_event
 126     {
 127         uint events;
 128         epoll_data_t data;
 129     }
 130 }
 131 else
 132 {
 133     static assert(false, "Platform not supported");
 134 }
 135
 136 union epoll_data_t
 137 {
 138     void *ptr;
 139     int fd;
 140     uint u32;
 141     ulong u64;
 142 }
 143
 144 int epoll_create (int size);
 145 int epoll_create1 (int flags);
 146 int epoll_ctl (int epfd, int op, int fd, epoll_event *event);
 147 int epoll_wait (int epfd, epoll_event *events, int maxevents, int timeout);