/*
* Copyright (c) 1994-2008 Carnegie Mellon University. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The name "Carnegie Mellon University" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For permission or any legal
* details, please contact
* Carnegie Mellon University
* Center for Technology Transfer and Enterprise Creation
* 4615 Forbes Avenue
* Suite 302
* Pittsburgh, PA 15213
* (412) 268-7393, fax: (412) 268-7395
* innovation@andrew.cmu.edu
*
* 4. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by Computing Services
* at Carnegie Mellon University (http://www.cmu.edu/computing/)."
*
* CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
* THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
* FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef IDLE_H
#define IDLE_H
#include "mailbox.h"
extern const char *idle_method_desc;
typedef enum {
/* something noteworthy may have happened to the mailbox,
* e.g. a delivery, so it needs to be checked */
IDLE_MAILBOX = 0x1,
/* the shutdownfile may have been written, needing an ALERT reponse
* to be sent to any IMAP clients */
IDLE_ALERT = 0x2,
/* input was detected on the @otherfd, probably because the IMAP
* client cancelled the IDLE */
IDLE_INPUT = 0x4
} idle_flags_t;
typedef void idle_updateproc_t(idle_flags_t flags);
/* set up the link to the idled for notifications */
void idle_init(void);
/* Is IDLE enabled? */
int idle_enabled(void);
/* Start IDLEing on 'mailbox'. */
void idle_start(const char *mboxname);
/* Wait for something to happen while IDLEing. @otherfd is a file
* descriptor on which to wait for input; presumably this will be the
* fd of the main protstream from the IMAP client. Returns a mask of
* flags indicating what if anything happened, see idle_flags_t, or 0
* on error. If idled is disabled or was not contacted, we fall back
* to polling mode and return the flags IDLE_MAILBOX and IDLE_INPUT
* periodically.
*/
int idle_wait(int otherfd);
/* Stop IDLEing on 'mailbox'. */
void idle_stop(const char *mboxname);
/* Clean up when IDLE is completed. */
void idle_done(void);
#endif