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/js/lib/Socket.IO-node/support/expresso/deps/jscoverage/js/jsclist.h

http://github.com/onedayitwillmake/RealtimeMultiplayerNodeJs
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  1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
  2/* ***** BEGIN LICENSE BLOCK *****
  3 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  4 *
  5 * The contents of this file are subject to the Mozilla Public License Version
  6 * 1.1 (the "License"); you may not use this file except in compliance with
  7 * the License. You may obtain a copy of the License at
  8 * http://www.mozilla.org/MPL/
  9 *
 10 * Software distributed under the License is distributed on an "AS IS" basis,
 11 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 12 * for the specific language governing rights and limitations under the
 13 * License.
 14 *
 15 * The Original Code is Mozilla Communicator client code, released
 16 * March 31, 1998.
 17 *
 18 * The Initial Developer of the Original Code is
 19 * Netscape Communications Corporation.
 20 * Portions created by the Initial Developer are Copyright (C) 1998
 21 * the Initial Developer. All Rights Reserved.
 22 *
 23 * Contributor(s):
 24 *
 25 * Alternatively, the contents of this file may be used under the terms of
 26 * either of the GNU General Public License Version 2 or later (the "GPL"),
 27 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 28 * in which case the provisions of the GPL or the LGPL are applicable instead
 29 * of those above. If you wish to allow use of your version of this file only
 30 * under the terms of either the GPL or the LGPL, and not to allow others to
 31 * use your version of this file under the terms of the MPL, indicate your
 32 * decision by deleting the provisions above and replace them with the notice
 33 * and other provisions required by the GPL or the LGPL. If you do not delete
 34 * the provisions above, a recipient may use your version of this file under
 35 * the terms of any one of the MPL, the GPL or the LGPL.
 36 *
 37 * ***** END LICENSE BLOCK ***** */
 38
 39#ifndef jsclist_h___
 40#define jsclist_h___
 41
 42#include "jstypes.h"
 43
 44/*
 45** Circular linked list
 46*/
 47typedef struct JSCListStr {
 48    struct JSCListStr *next;
 49    struct JSCListStr *prev;
 50} JSCList;
 51
 52/*
 53** Insert element "_e" into the list, before "_l".
 54*/
 55#define JS_INSERT_BEFORE(_e,_l)  \
 56    JS_BEGIN_MACRO               \
 57        (_e)->next = (_l);       \
 58        (_e)->prev = (_l)->prev; \
 59        (_l)->prev->next = (_e); \
 60        (_l)->prev = (_e);       \
 61    JS_END_MACRO
 62
 63/*
 64** Insert element "_e" into the list, after "_l".
 65*/
 66#define JS_INSERT_AFTER(_e,_l)   \
 67    JS_BEGIN_MACRO               \
 68        (_e)->next = (_l)->next; \
 69        (_e)->prev = (_l);       \
 70        (_l)->next->prev = (_e); \
 71        (_l)->next = (_e);       \
 72    JS_END_MACRO
 73
 74/*
 75** Return the element following element "_e"
 76*/
 77#define JS_NEXT_LINK(_e)         \
 78        ((_e)->next)
 79/*
 80** Return the element preceding element "_e"
 81*/
 82#define JS_PREV_LINK(_e)         \
 83        ((_e)->prev)
 84
 85/*
 86** Append an element "_e" to the end of the list "_l"
 87*/
 88#define JS_APPEND_LINK(_e,_l) JS_INSERT_BEFORE(_e,_l)
 89
 90/*
 91** Insert an element "_e" at the head of the list "_l"
 92*/
 93#define JS_INSERT_LINK(_e,_l) JS_INSERT_AFTER(_e,_l)
 94
 95/* Return the head/tail of the list */
 96#define JS_LIST_HEAD(_l) (_l)->next
 97#define JS_LIST_TAIL(_l) (_l)->prev
 98
 99/*
100** Remove the element "_e" from it's circular list.
101*/
102#define JS_REMOVE_LINK(_e)             \
103    JS_BEGIN_MACRO                     \
104        (_e)->prev->next = (_e)->next; \
105        (_e)->next->prev = (_e)->prev; \
106    JS_END_MACRO
107
108/*
109** Remove the element "_e" from it's circular list. Also initializes the
110** linkage.
111*/
112#define JS_REMOVE_AND_INIT_LINK(_e)    \
113    JS_BEGIN_MACRO                     \
114        (_e)->prev->next = (_e)->next; \
115        (_e)->next->prev = (_e)->prev; \
116        (_e)->next = (_e);             \
117        (_e)->prev = (_e);             \
118    JS_END_MACRO
119
120/*
121** Return non-zero if the given circular list "_l" is empty, zero if the
122** circular list is not empty
123*/
124#define JS_CLIST_IS_EMPTY(_l) \
125    ((_l)->next == (_l))
126
127/*
128** Initialize a circular list
129*/
130#define JS_INIT_CLIST(_l)  \
131    JS_BEGIN_MACRO         \
132        (_l)->next = (_l); \
133        (_l)->prev = (_l); \
134    JS_END_MACRO
135
136#define JS_INIT_STATIC_CLIST(_l) \
137    {(_l), (_l)}
138
139#endif /* jsclist_h___ */