-- Copyright (C) 1981, 1984, 1985  by Xerox Corporation. All rights reserved. 
-- ReturnDefs.mesa, Transport Mechanism Mail Server - DEFS for Returning Mail --

-- HGM, 15-Sep-85  3:55:24
-- Andrew Birrell   9-Jan-81 15:05:17 --

DIRECTORY
  BodyDefs USING [ItemLength, RName, Timestamp],
  HeapDefs USING [ObjectNumber, ReaderHandle, WriterHandle],
  SendDefs USING [Handle];

ReturnDefs: DEFINITIONS =
  BEGIN

  ParseBody: PROC [
    reader: HeapDefs.ReaderHandle, stamp: POINTER TO BodyDefs.Timestamp ¬ NIL,
    sender: BodyDefs.RName ¬ NIL, returnTo: BodyDefs.RName ¬ NIL]
    RETURNS [BodyDefs.ItemLength];
  -- reader should initially be at start of body;
  -- Reads items from body, and leaves reader positioned
  -- at start of text of body, if text exists.
  -- Returns length of text, or 0 --

  CopyItem: PROC [
    reader: HeapDefs.ReaderHandle, length: BodyDefs.ItemLength,
    sendBlock: PROCEDURE [SendDefs.Handle, LONG POINTER, CARDINAL],
    sendBlockData: SendDefs.Handle];
  -- Copies specified number of bytes from reader by
  -- calling sendBlock with sendBlockData, buffer address,
  -- and number of bytes. --

  BadRecipients: PROC [list: HeapDefs.WriterHandle, body: HeapDefs.ObjectNumber];
  -- Recipients given by original sender were bad: tell "ReturnTo" name
  -- specified in message body properties --

  BadGroup: PROC [
    list: HeapDefs.WriterHandle, body: HeapDefs.ObjectNumber,
    group: BodyDefs.RName];
  -- Recipients in group were bad: tell owner --

  RejectedByMTP: PROC [
    list: HeapDefs.WriterHandle, body: HeapDefs.ObjectNumber, server: STRING,
    text: STRING];
  -- Recipients were rejected by MTP server: tell "ReturnTo" name
  -- specified in message body properties --

  LongTerm: PROC [list: HeapDefs.WriterHandle, body: HeapDefs.ObjectNumber];
  -- Long-term timeout: tell "ReturnTo" name specified in message body
  -- properties --

  END.