LCOM1920-T02G10

/*        $NetBSD: event_compat.h,v 1.1.1.2 2015/01/29 06:38:27 spz Exp $        */

/*        $NetBSD: event_compat.h,v 1.1.1.2 2015/01/29 06:38:27 spz Exp $        */

/*

 * Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>

 * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson

 *

 * 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 of the author may not be used to endorse or promote products

 *    derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES

 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT

 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF

 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef _EVENT2_EVENT_COMPAT_H_

#define _EVENT2_EVENT_COMPAT_H_

/** @file event2/event_compat.h

  Potentially non-threadsafe versions of the functions in event.h: provided

  only for backwards compatibility.

  In the oldest versions of Libevent, event_base was not a first-class

  structure.  Instead, there was a single event base that every function

  manipulated.  Later, when separate event bases were added, the old functions

  that didn't take an event_base argument needed to work by manipulating the

  "current" event base.  This could lead to thread-safety issues, and obscure,

  hard-to-diagnose bugs.

  @deprecated All functions in this file are by definition deprecated.

 */

#ifdef __cplusplus

extern "C" {

#endif

#include <event2/event-config.h>

#ifdef _EVENT_HAVE_SYS_TYPES_H

#include <sys/types.h>

#endif

#ifdef _EVENT_HAVE_SYS_TIME_H

#include <sys/time.h>

#endif

/* For int types. */

#include <event2/util.h>

/**

  Initialize the event API.

  The event API needs to be initialized with event_init() before it can be

  used.  Sets the global current base that gets used for events that have no

  base associated with them.

  @deprecated This function is deprecated because it replaces the "current"

    event_base, and is totally unsafe for multithreaded use.  The replacement

    is event_base_new().

  @see event_base_set(), event_base_new()

 */

struct event_base *event_init(void);

/**

  Loop to process events.

  Like event_base_dispatch(), but uses the "current" base.

  @deprecated This function is deprecated because it is easily confused by

    multiple calls to event_init(), and because it is not safe for

    multithreaded use.  The replacement is event_base_dispatch().

  @see event_base_dispatch(), event_init()

 */

int event_dispatch(void);

/**

  Handle events.

  This function behaves like event_base_loop(), but uses the "current" base

  @deprecated This function is deprecated because it uses the event base from

    the last call to event_init, and is therefore not safe for multithreaded

    use.  The replacement is event_base_loop().

  @see event_base_loop(), event_init()

*/

int event_loop(int);

/**

  Exit the event loop after the specified time.

  This function behaves like event_base_loopexit(), except that it uses the

  "current" base.

  @deprecated This function is deprecated because it uses the event base from

    the last call to event_init, and is therefore not safe for multithreaded

    use.  The replacement is event_base_loopexit().

  @see event_init, event_base_loopexit()

  */

int event_loopexit(const struct timeval *);

/**

  Abort the active event_loop() immediately.

  This function behaves like event_base_loopbreakt(), except that it uses the

  "current" base.

  @deprecated This function is deprecated because it uses the event base from

    the last call to event_init, and is therefore not safe for multithreaded

    use.  The replacement is event_base_loopbreak().

  @see event_base_loopbreak(), event_init()

 */

int event_loopbreak(void);

/**

  Schedule a one-time event to occur.

  @deprecated This function is obsolete, and has been replaced by

    event_base_once(). Its use is deprecated because it relies on the

    "current" base configured by event_init().

  @see event_base_once()

 */

int event_once(evutil_socket_t , short,

    void (*)(evutil_socket_t, short, void *), void *, const struct timeval *);

/**

  Get the kernel event notification mechanism used by Libevent.

  @deprecated This function is obsolete, and has been replaced by

    event_base_get_method(). Its use is deprecated because it relies on the

    "current" base configured by event_init().

  @see event_base_get_method()

 */

const char *event_get_method(void);

/**

  Set the number of different event priorities.

  @deprecated This function is deprecated because it is easily confused by

    multiple calls to event_init(), and because it is not safe for

    multithreaded use.  The replacement is event_base_priority_init().

  @see event_base_priority_init()

 */

int        event_priority_init(int);

/**

  Prepare an event structure to be added.

  @deprecated event_set() is not recommended for new code, because it requires

     a subsequent call to event_base_set() to be safe under most circumstances.

     Use event_assign() or event_new() instead.

 */

void event_set(struct event *, evutil_socket_t, short, void (*)(evutil_socket_t, short, void *), void *);

#define evtimer_set(ev, cb, arg)        event_set((ev), -1, 0, (cb), (arg))

#define evsignal_set(ev, x, cb, arg)        \

        event_set((ev), (x), EV_SIGNAL|EV_PERSIST, (cb), (arg))

/**

   @name timeout_* macros

   @deprecated These macros are deprecated because their naming is inconsistent

     with the rest of Libevent.  Use the evtimer_* macros instead.

   @{

 */

#define timeout_add(ev, tv)                event_add((ev), (tv))

#define timeout_set(ev, cb, arg)        event_set((ev), -1, 0, (cb), (arg))

#define timeout_del(ev)                        event_del(ev)

#define timeout_pending(ev, tv)                event_pending((ev), EV_TIMEOUT, (tv))

#define timeout_initialized(ev)                event_initialized(ev)

/**@}*/

/**

   @name signal_* macros

   @deprecated These macros are deprecated because their naming is inconsistent

     with the rest of Libevent.  Use the evsignal_* macros instead.

   @{

 */

#define signal_add(ev, tv)                event_add((ev), (tv))

#define signal_set(ev, x, cb, arg)                                \

        event_set((ev), (x), EV_SIGNAL|EV_PERSIST, (cb), (arg))

#define signal_del(ev)                        event_del(ev)

#define signal_pending(ev, tv)                event_pending((ev), EV_SIGNAL, (tv))

#define signal_initialized(ev)                event_initialized(ev)

/**@}*/

#ifndef EVENT_FD

/* These macros are obsolete; use event_get_fd and event_get_signal instead. */

#define EVENT_FD(ev)                ((int)event_get_fd(ev))

#define EVENT_SIGNAL(ev)        event_get_signal(ev)

#endif

#ifdef __cplusplus

}

#endif

#endif /* _EVENT2_EVENT_COMPAT_H_ */