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<hr><h1>rnglock.h</h1><div class="fragment"><pre>00001 <font class="comment">//</font>
00002 <font class="comment">// rnglock.h</font>
00003 <font class="comment">//</font>
00004 <font class="comment">// Copyright (C) 1996 Limit Point Systems, Inc.</font>
00005 <font class="comment">//</font>
00006 <font class="comment">// Author: Curtis Janssen &lt;cljanss@limitpt.com&gt;</font>
00007 <font class="comment">// Maintainer: LPS</font>
00008 <font class="comment">//</font>
00009 <font class="comment">// This file is part of the SC Toolkit.</font>
00010 <font class="comment">//</font>
00011 <font class="comment">// The SC Toolkit is free software; you can redistribute it and/or modify</font>
00012 <font class="comment">// it under the terms of the GNU Library General Public License as published by</font>
00013 <font class="comment">// the Free Software Foundation; either version 2, or (at your option)</font>
00014 <font class="comment">// any later version.</font>
00015 <font class="comment">//</font>
00016 <font class="comment">// The SC Toolkit is distributed in the hope that it will be useful,</font>
00017 <font class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00018 <font class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</font>
00019 <font class="comment">// GNU Library General Public License for more details.</font>
00020 <font class="comment">//</font>
00021 <font class="comment">// You should have received a copy of the GNU Library General Public License</font>
00022 <font class="comment">// along with the SC Toolkit; see the file COPYING.LIB.  If not, write to</font>
00023 <font class="comment">// the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.</font>
00024 <font class="comment">//</font>
00025 <font class="comment">// The U.S. Government is granted a limited license as per AL 91-7.</font>
00026 <font class="comment">//</font>
00027 
00028 <font class="preprocessor">#ifdef __GNUC__</font>
00029 <font class="preprocessor"></font><font class="preprocessor">#pragma interface</font>
00030 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
00031 <font class="preprocessor"></font>
00032 <font class="preprocessor">#ifndef _util_group_rnglock_h</font>
00033 <font class="preprocessor"></font><font class="preprocessor">#define _util_group_rnglock_h</font>
00034 <font class="preprocessor"></font>
00035 <font class="preprocessor">#include &lt;iostream&gt;</font>
00036 
00037 <font class="preprocessor">#include &lt;util/misc/exenv.h&gt;</font>
00038 
00039 <font class="keyword">namespace </font>sc {
00040 
00041 <font class="keyword">class </font>Pool;
00042 
00043 <font class="keyword">class </font>RangeLockItem {
00044   <font class="keyword">public</font>:
00045     RangeLockItem *prev;
00046     RangeLockItem *next;
00047     <font class="keywordtype">int</font> start;
00048     <font class="keywordtype">int</font> fence;
00049     <font class="keywordtype">int</font> value;
00050     RangeLockItem(RangeLockItem *p, RangeLockItem *n, <font class="keywordtype">int</font> s, <font class="keywordtype">int</font> f, <font class="keywordtype">int</font> v):
00051       prev(p), next(n), start(s), fence(f), value(v) {}
00052     ~RangeLockItem()<font class="keyword"> </font>{};
00053 
00054     <font class="keyword">static</font> <font class="keywordtype">void</font> *operator new(size_t, Pool *);
00055     <font class="keyword">static</font> <font class="keywordtype">void</font> operator delete(<font class="keywordtype">void</font> *, Pool *);
00056 };
00057 
00058 <font class="keyword">class </font>RangeLockValOp;
00059 <font class="keyword">class </font>RangeLock {
00060   <font class="keyword">private</font>:
00061     RangeLockItem *root_;
00062     Pool *pool_;
00063 
00064     <font class="keywordtype">void</font> split_ranges(<font class="keywordtype">int</font> start, <font class="keywordtype">int</font> fence);
00065     <font class="keywordtype">void</font> do_valop(RangeLockValOp&amp;, <font class="keywordtype">int</font> start, <font class="keywordtype">int</font> fence);
00066   <font class="keyword">public</font>:
00067     RangeLock(Pool *pool = 0);
00068     ~RangeLock();
00069 
00070     <font class="keywordtype">void</font> increment(<font class="keywordtype">int</font> start, <font class="keywordtype">int</font> fence);
00071     <font class="keywordtype">void</font> decrement(<font class="keywordtype">int</font> start, <font class="keywordtype">int</font> fence);
00072     <font class="keywordtype">void</font> set(<font class="keywordtype">int</font> start, <font class="keywordtype">int</font> fence, <font class="keywordtype">int</font> value);
00073     <font class="keywordtype">void</font> sum(<font class="keywordtype">int</font> start, <font class="keywordtype">int</font> fence, <font class="keywordtype">int</font> delta);
00074 
00075     <font class="comment">// check for anything within a range to be equal to a value</font>
00076     <font class="keywordtype">int</font> checkeq(<font class="keywordtype">int</font> start, <font class="keywordtype">int</font> fence, <font class="keywordtype">int</font> value);
00077     <font class="comment">// check for anything within a range to be greater than a value</font>
00078     <font class="keywordtype">int</font> checkgr(<font class="keywordtype">int</font> start, <font class="keywordtype">int</font> fence, <font class="keywordtype">int</font> value);
00079 
00080     <font class="keywordtype">void</font> check();
00081     <font class="keywordtype">void</font> print(std::ostream &amp;o = ExEnv::out0()) <font class="keyword">const</font>;
00082 
00083     <font class="keywordtype">int</font> lockvalue(<font class="keywordtype">int</font> i);
00084 };
00085 
00086 }
00087 
00088 <font class="preprocessor">#endif</font>
00089 <font class="preprocessor"></font>
00090 <font class="comment">// Local Variables:</font>
00091 <font class="comment">// mode: c++</font>
00092 <font class="comment">// c-file-style: "CLJ"</font>
00093 <font class="comment">// End:</font>
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