epoll

Types

EpollData {...}{.importc: "union epoll_data", header: "<sys/epoll.h>", pure, final.} = object
  u64* {...}{.importc: "u64".}: uint64
  Source Edit
EpollEvent {...}{.importc: "struct epoll_event", header: "<sys/epoll.h>", pure, final.} = object
  events*: uint32
  data*: EpollData
  Source Edit

Consts

EPOLLIN = 0x00000001
  Source Edit
EPOLLPRI = 0x00000002
  Source Edit
EPOLLOUT = 0x00000004
  Source Edit
EPOLLERR = 0x00000008
  Source Edit
EPOLLHUP = 0x00000010
  Source Edit
EPOLLRDNORM = 0x00000040
  Source Edit
EPOLLRDBAND = 0x00000080
  Source Edit
EPOLLWRNORM = 0x00000100
  Source Edit
EPOLLWRBAND = 0x00000200
  Source Edit
EPOLLMSG = 0x00000400
  Source Edit
EPOLLRDHUP = 0x00002000
  Source Edit
EPOLLEXCLUSIVE = 268435456
  Source Edit
EPOLLWAKEUP = 536870912
  Source Edit
EPOLLONESHOT = 1073741824
  Source Edit
EPOLLET = 2147483648
  Source Edit
EPOLL_CTL_ADD = 1
  Source Edit
EPOLL_CTL_DEL = 2
  Source Edit
EPOLL_CTL_MOD = 3
  Source Edit

Procs

proc epoll_create(size: cint): cint {...}{.importc: "epoll_create",
                                      header: "<sys/epoll.h>".}

Creates an epoll instance. Returns an fd for the new instance.

The "size" parameter is a hint specifying the number of file descriptors to be associated with the new instance. The fd returned by epoll_create() should be closed with close().

  Source Edit
proc epoll_create1(flags: cint): cint {...}{.importc: "epoll_create1",
                                        header: "<sys/epoll.h>".}
Same as epoll_create but with an FLAGS parameter. The unused SIZE parameter has been dropped.   Source Edit
proc epoll_ctl(epfd: cint; op: cint; fd: cint | SocketHandle;
               event: ptr EpollEvent): cint {...}{.importc: "epoll_ctl",
    header: "<sys/epoll.h>".}

Manipulate an epoll instance "epfd". Returns 0 in case of success, -1 in case of error (the "errno" variable will contain the specific error code).

The "op" parameter is one of the EPOLL_CTL_* constants defined above. The "fd" parameter is the target of the operation. The "event" parameter describes which events the caller is interested in and any associated user data.

  Source Edit
proc epoll_wait(epfd: cint; events: ptr EpollEvent; maxevents: cint;
                timeout: cint): cint {...}{.importc: "epoll_wait",
                                       header: "<sys/epoll.h>".}

Wait for events on an epoll instance "epfd". Returns the number of triggered events returned in "events" buffer. Or -1 in case of error with the "errno" variable set to the specific error code. The "events" parameter is a buffer that will contain triggered events. The "maxevents" is the maximum number of events to be returned ( usually size of "events" ). The "timeout" parameter specifies the maximum wait time in milliseconds (-1 == infinite).

This function is a cancellation point and therefore not marked with __THROW.

  Source Edit