| /* | |
| * Copyright (c) 2004-2005, Swedish Institute of Computer Science. | |
| * 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. Neither the name of the Institute nor the names of its contributors | |
| * may be used to endorse or promote products derived from this software | |
| * without specific prior written permission. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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. | |
| * | |
| * This file is part of the uIP TCP/IP stack | |
| * | |
| * Author: Adam Dunkels <adam@sics.se> | |
| * | |
| * $Id: lc.h,v 1.2 2006/06/12 08:00:30 adam Exp $ | |
| */ | |
| /** | |
| * \addtogroup pt | |
| * @{ | |
| */ | |
| /** | |
| * \defgroup lc Local continuations | |
| * @{ | |
| * | |
| * Local continuations form the basis for implementing protothreads. A | |
| * local continuation can be <i>set</i> in a specific function to | |
| * capture the state of the function. After a local continuation has | |
| * been set can be <i>resumed</i> in order to restore the state of the | |
| * function at the point where the local continuation was set. | |
| * | |
| * | |
| */ | |
| /** | |
| * \file lc.h | |
| * Local continuations | |
| * \author | |
| * Adam Dunkels <adam@sics.se> | |
| * | |
| */ | |
| #ifdef DOXYGEN | |
| /** | |
| * Initialize a local continuation. | |
| * | |
| * This operation initializes the local continuation, thereby | |
| * unsetting any previously set continuation state. | |
| * | |
| * \hideinitializer | |
| */ | |
| #define LC_INIT(lc) | |
| /** | |
| * Set a local continuation. | |
| * | |
| * The set operation saves the state of the function at the point | |
| * where the operation is executed. As far as the set operation is | |
| * concerned, the state of the function does <b>not</b> include the | |
| * call-stack or local (automatic) variables, but only the program | |
| * counter and such CPU registers that needs to be saved. | |
| * | |
| * \hideinitializer | |
| */ | |
| #define LC_SET(lc) | |
| /** | |
| * Resume a local continuation. | |
| * | |
| * The resume operation resumes a previously set local continuation, thus | |
| * restoring the state in which the function was when the local | |
| * continuation was set. If the local continuation has not been | |
| * previously set, the resume operation does nothing. | |
| * | |
| * \hideinitializer | |
| */ | |
| #define LC_RESUME(lc) | |
| /** | |
| * Mark the end of local continuation usage. | |
| * | |
| * The end operation signifies that local continuations should not be | |
| * used any more in the function. This operation is not needed for | |
| * most implementations of local continuation, but is required by a | |
| * few implementations. | |
| * | |
| * \hideinitializer | |
| */ | |
| #define LC_END(lc) | |
| /** | |
| * \var typedef lc_t; | |
| * | |
| * The local continuation type. | |
| * | |
| * \hideinitializer | |
| */ | |
| #endif /* DOXYGEN */ | |
| #ifndef __LC_H__ | |
| #define __LC_H__ | |
| #ifdef LC_CONF_INCLUDE | |
| #include LC_CONF_INCLUDE | |
| #else | |
| #include "lc-switch.h" | |
| #endif /* LC_CONF_INCLUDE */ | |
| #endif /* __LC_H__ */ | |
| /** @} */ | |
| /** @} */ |