69 lines
3.3 KiB
OCaml
69 lines
3.3 KiB
OCaml
(***********************************************************************)
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(* *)
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(* Caml Special Light *)
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(* *)
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(* Xavier Leroy and Pascal Cuoq, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1995 Institut National de Recherche en Informatique et *)
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(* Automatique. Distributed only by permission. *)
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(* *)
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(***********************************************************************)
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(* $Id$ *)
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(* Module [Thread]: lightweight threads for Win32 *)
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type t
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(* The type of thread handles. *)
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(** Thread creation and termination *)
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val create : ('a -> 'b) -> 'a -> t
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(* [new funct arg] creates a new thread of control, in which the
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function application [funct arg] is executed concurrently
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with the other threads of the program. The application of [new]
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returns the handle of the newly created thread.
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The new thread terminates when the application [funct arg]
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returns, either normally or by raising an uncaught exception.
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In the latter case, the exception is printed on standard error,
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but not propagated back to the parent thread. Similarly, the
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result of the application [funct arg] is discarded and not
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directly accessible to the parent thread. *)
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external self : unit -> t = "caml_thread_self"
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(* Return the thread currently executing. *)
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external id : t -> int = "caml_thread_id"
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(* Return the identifier of the given thread. A thread identifier
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is an integer that identifies uniquely the thread.
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It can be used to build data structures indexed by threads. *)
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external exit : unit -> unit = "caml_thread_exit"
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(* Terminate prematurely the currently executing thread. *)
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external kill : t -> unit = "caml_thread_kill"
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(* Terminate prematurely the thread whose handle is given. *)
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(** Thread synchronization *)
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external join : t -> unit = "caml_thread_join"
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(* [join th] suspends the execution of the calling thread
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until the thread [th] has terminated. *)
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(** Suspending threads *)
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val delay: float -> unit
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(* [delay d] suspends the execution of the calling thread for
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[d] seconds. The other program threads continue to run during
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this time. *)
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val join : t -> unit
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(* [join th] suspends the execution of the calling thread
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until the thread [th] has terminated. *)
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val wait_read : Unix.file_descr -> unit
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val wait_write : Unix.file_descr -> unit
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val wait_timed_read : Unix.file_descr -> float -> bool
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val wait_timed_write : Unix.file_descr -> float -> bool
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(* These functions do nothing in this Win32 implementation. *)
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val wait_pid : int -> int * Unix.process_status
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(* [wait_pid p] suspends the execution of the calling thread
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until the process specified by the process identifier [p]
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terminates. Returns the pid of the child caught and
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its termination status, as per [Unix.wait]. *)
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