package core

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package core
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type t

An Epoll.Flags.t is an immutable set of flags for which one can register interest for a file descriptor. It is implemented as a bitmask, and so all operations (+, -, etc.) are constant time with no allocation.

sexp_of_t produces a human-readable list of bits, e.g. "(in out)".

include sig ... end
include Core_kernel.Flags.S with type t := t
include sig ... end
val t_of_sexp : Sexplib.Sexp.t -> t
val sexp_of_t : t -> Sexplib.Sexp.t
val typerep_of_t : t Typerep_lib.Std.Typerep.t
val typename_of_t : t Typerep_lib.Std.Typename.t

consistent with subset

include Core_kernel.Comparable.S with type t := t
include Base.Comparable_intf.S with type t := t
include Base.Comparable_intf.Polymorphic_compare with type t := t
include Base.Polymorphic_compare_intf.Infix with type t := t
val (>=) : t -> t -> bool
val (<=) : t -> t -> bool
val (=) : t -> t -> bool
val (>) : t -> t -> bool
val (<) : t -> t -> bool
val (<>) : t -> t -> bool
val equal : t -> t -> bool
val compare : t -> t -> int

-1 means "less than", 0 means "equal", 1 means "greater than", and other values should not be returned

val min : t -> t -> t
val max : t -> t -> t
val ascending : t -> t -> int

ascending is identical to compare. descending x y = ascending y x. These are intended to be mnemonic when used like List.sort ~cmp:ascending and List.sort ~cmp:descending, since they cause the list to be sorted in ascending or descending order, respectively.

val descending : t -> t -> int
val between : t -> low:t -> high:t -> bool
val clamp_exn : t -> min:t -> max:t -> t

clamp_exn t ~min ~max returns t', the closest value to t such that between t' ~low:min ~high:max is true.

Raises if not (min <= max).

val clamp : t -> min:t -> max:t -> t Base.Or_error.t
include Base.Comparator.S with type t := t
type comparator_witness
include Base.Comparable_intf.Validate with type t := t
val validate_lbound : min:t Base.Maybe_bound.t -> t Base.Validate.check
val validate_ubound : max:t Base.Maybe_bound.t -> t Base.Validate.check
val validate_bound : min:t Base.Maybe_bound.t -> max:t Base.Maybe_bound.t -> t Base.Validate.check
val of_int : Base.Int.t -> t
val to_int_exn : t -> Base.Int.t
val empty : t
val (+) : t -> t -> t

set union, bitwise or

val (-) : t -> t -> t

set difference

val intersect : t -> t -> t

bitwise and

val complement : t -> t

bitwise not

val is_empty : t -> Base.Bool.t
val do_intersect : t -> t -> Base.Bool.t
val are_disjoint : t -> t -> Base.Bool.t
val subset : t -> t -> Base.Bool.t

subset a b = is_empty (a - b)

The names of the flags match the man pages. E.g. in_ = "EPOLLIN", out = "EPOLLOUT", etc.

val none : t

Associated fd is readable

val in_ : t

Associated fd is readable

val out : t

Associated fd is writable

val pri : t

Urgent data available

val err : t

Error condition (always on, no need to set it)

val hup : t

Hang up happened (always on)

val et : t

Edge Triggered behavior (see man page)

val oneshot : t

one-shot behavior for the associated fd

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