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<hr><h1>memory.h</h1><div class="fragment"><pre>00001 <font class="comment">//</font>
00002 <font class="comment">// memory.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 <cljanss@limitpt.com></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_memory_h</font>
00033 <font class="preprocessor"></font><font class="preprocessor">#define _util_group_memory_h</font>
00034 <font class="preprocessor"></font>
00035 <font class="preprocessor">#include <iostream></font>
00036
00037 <font class="preprocessor">#include <scconfig.h></font>
00038 <font class="preprocessor">#include <util/class/class.h></font>
00039 <font class="preprocessor">#include <util/group/thread.h></font>
00040
00041 <font class="keyword">namespace </font>sc {
00042
00043 <font class="preprocessor">#if 0 // this can be used to catch accidental conversions to int</font>
00044 <font class="preprocessor"></font><font class="keyword">class </font>distsize_t {
00045 <font class="keyword">friend</font> size_t distsize_to_size(<font class="keyword">const</font> distsize_t &a);
00046 <font class="keyword">friend</font> distsize_t operator *(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b);
00047 <font class="keyword">friend</font> distsize_t operator +(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b);
00048 <font class="keyword">friend</font> distsize_t operator -(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b);
00049 <font class="keyword">friend</font> distsize_t operator /(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b);
00050 <font class="keyword">friend</font> distsize_t operator %(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b);
00051 <font class="keyword">friend</font> ostream& operator <<(ostream& o, <font class="keyword">const</font> distsize_t &s);
00052 <font class="keyword">private</font>:
00053 <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <font class="keywordtype">long</font> s;
00054 <font class="keyword">public</font>:
00055 distsize_t(): s(999999999999999LL) {}
00056 distsize_t(<font class="keywordtype">int</font> a): s(a) {}
00057 distsize_t(<font class="keywordtype">unsigned</font> <font class="keywordtype">int</font> a): s(a) {}
00058 distsize_t(<font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <font class="keywordtype">long</font> a): s(a) {}
00059 distsize_t &operator =(<font class="keyword">const</font> distsize_t &a)<font class="keyword"></font>
00060 <font class="keyword"> </font>{ s=a.s; <font class="keywordflow">return</font> *<font class="keyword">this</font>; }
00061 distsize_t &operator +=(<font class="keyword">const</font> distsize_t &a)<font class="keyword"></font>
00062 <font class="keyword"> </font>{ s+=a.s; <font class="keywordflow">return</font> *<font class="keyword">this</font>; }
00063 distsize_t operator *(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00064 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s*a.s; }
00065 distsize_t operator +(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00066 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s+a.s; }
00067 distsize_t operator -(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00068 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s-a.s; }
00069 distsize_t operator /(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00070 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s/a.s; }
00071 distsize_t operator %(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00072 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s%a.s; }
00073 <font class="keywordtype">bool</font> operator <(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00074 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s<a.s; }
00075 <font class="keywordtype">bool</font> operator <=(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00076 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s<=a.s; }
00077 <font class="keywordtype">bool</font> operator >(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00078 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s>a.s; }
00079 <font class="keywordtype">bool</font> operator >=(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00080 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s>=a.s; }
00081 <font class="keywordtype">bool</font> operator ==(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> const</font>
00082 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s==a.s; }
00083 distsize_t operator *(<font class="keyword">const</font> <font class="keywordtype">int</font> &a)<font class="keyword"> const</font>
00084 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s*a; }
00085 distsize_t operator +(<font class="keyword">const</font> <font class="keywordtype">int</font> &a)<font class="keyword"> const</font>
00086 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s+a; }
00087 distsize_t operator -(<font class="keyword">const</font> <font class="keywordtype">int</font> &a)<font class="keyword"> const</font>
00088 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s-a; }
00089 distsize_t operator /(<font class="keyword">const</font> <font class="keywordtype">int</font> &a)<font class="keyword"> const</font>
00090 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s/a; }
00091 distsize_t operator %(<font class="keyword">const</font> <font class="keywordtype">int</font> &a)<font class="keyword"> const</font>
00092 <font class="keyword"> </font>{ <font class="keywordflow">return</font> s%a; }
00093 };
00094 <font class="keyword">inline</font> distsize_t operator *(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b)<font class="keyword"></font>
00095 <font class="keyword"></font>{ <font class="keywordflow">return</font> a*b.s; }
00096 <font class="keyword">inline</font> distsize_t operator +(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b)<font class="keyword"></font>
00097 <font class="keyword"></font>{ <font class="keywordflow">return</font> a+b.s; }
00098 <font class="keyword">inline</font> distsize_t operator -(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b)<font class="keyword"></font>
00099 <font class="keyword"></font>{ <font class="keywordflow">return</font> a-b.s; }
00100 <font class="keyword">inline</font> distsize_t operator /(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b)<font class="keyword"></font>
00101 <font class="keyword"></font>{ <font class="keywordflow">return</font> a/b.s; }
00102 <font class="keyword">inline</font> distsize_t operator %(<font class="keyword">const</font> <font class="keywordtype">int</font> &a,<font class="keyword">const</font> distsize_t &b)<font class="keyword"></font>
00103 <font class="keyword"></font>{ <font class="keywordflow">return</font> a%b.s; }
00104 <font class="keyword">inline</font> ostream& operator <<(ostream& o, <font class="keyword">const</font> distsize_t &s)<font class="keyword"> </font>{ <font class="keywordflow">return</font> o<<s.s; }
00105 <font class="keyword">inline</font> size_t distsize_to_size(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> </font>{<font class="keywordflow">return</font> a.s;}
00106 <font class="preprocessor">#elif defined(HAVE_LONG_LONG)</font>
00107 <font class="preprocessor"></font><font class="keyword">typedef</font> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> <font class="keywordtype">long</font> distsize_t;
00108 <font class="keyword">typedef</font> <font class="keywordtype">long</font> <font class="keywordtype">long</font> distssize_t;
00109 <font class="keyword">inline</font> size_t distsize_to_size(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> </font>{<font class="keywordflow">return</font> a;}
00110 <font class="preprocessor">#else</font>
00111 <font class="preprocessor"></font><font class="keyword">typedef</font> <font class="keywordtype">unsigned</font> <font class="keywordtype">long</font> distsize_t;
00112 <font class="keyword">typedef</font> <font class="keywordtype">long</font> distssize_t;
00113 <font class="keyword">inline</font> size_t distsize_to_size(<font class="keyword">const</font> distsize_t &a)<font class="keyword"> </font>{<font class="keywordflow">return</font> a;}
00114 <font class="preprocessor">#endif</font>
00115 <font class="preprocessor"></font>
<a name="l00155"></a><a class="code" href="class_sc__MemoryGrp.html">00155</a> <font class="keyword">class </font>MemoryGrp: <font class="keyword">public</font> DescribedClass {
00156 <font class="keyword">private</font>:
00157 Ref<ThreadLock> *locks_;
00158 <font class="keywordtype">int</font> nlock_;
00159
00160 <font class="keywordtype">void</font> init_locks();
00161
00162
00163 <font class="keyword">protected</font>:
00164 <font class="comment">// derived classes must fill in all these</font>
00165 <font class="comment">// ~MemoryGrp deletes the arrays</font>
00166 <font class="keywordtype">int</font> me_;
00167 <font class="keywordtype">int</font> n_;
00168 distsize_t *offsets_; <font class="comment">// offsets_[n_] is the fence for all data</font>
00169
00170 <font class="comment">// set to nonzero for debugging information</font>
00171 <font class="keywordtype">int</font> debug_;
00172
00173 <font class="keywordtype">void</font> obtain_local_lock(size_t start, size_t fence);
00174 <font class="keywordtype">void</font> release_local_lock(size_t start, size_t fence);
00175 <font class="keyword">public</font>:
00176 MemoryGrp();
00177 MemoryGrp(<font class="keyword">const</font> Ref<KeyVal>&);
00178 <font class="keyword">virtual</font> ~MemoryGrp();
00179
<a name="l00181"></a><a class="code" href="class_sc__MemoryGrp.html#a3">00181</a> <font class="keywordtype">int</font> <a class="code" href="class_sc__MemoryGrp.html#a3">me</a>()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> me_; }
<a name="l00183"></a><a class="code" href="class_sc__MemoryGrp.html#a4">00183</a> <font class="keywordtype">int</font> <a class="code" href="class_sc__MemoryGrp.html#a4">n</a>()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> n_; }
00184
00188 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a5">set_localsize</a>(size_t) = 0;
<a name="l00190"></a><a class="code" href="class_sc__MemoryGrp.html#a6">00190</a> size_t <a class="code" href="class_sc__MemoryGrp.html#a6">localsize</a>()<font class="keyword"> </font>{ <font class="keywordflow">return</font> distsize_to_size(offsets_[me_+1]-offsets_[me_]); }
00192 <font class="keyword">virtual</font> <font class="keywordtype">void</font> *<a class="code" href="class_sc__MemoryGrp.html#a7">localdata</a>() = 0;
<a name="l00194"></a><a class="code" href="class_sc__MemoryGrp.html#a8">00194</a> distsize_t <a class="code" href="class_sc__MemoryGrp.html#a8">localoffset</a>()<font class="keyword"> </font>{ <font class="keywordflow">return</font> offsets_[me_]; }
<a name="l00196"></a><a class="code" href="class_sc__MemoryGrp.html#a9">00196</a> <font class="keywordtype">int</font> <a class="code" href="class_sc__MemoryGrp.html#a9">size</a>(<font class="keywordtype">int</font> node)<font class="keyword"></font>
00197 <font class="keyword"> </font>{ <font class="keywordflow">return</font> distsize_to_size(offsets_[node+1] - offsets_[node]); }
<a name="l00199"></a><a class="code" href="class_sc__MemoryGrp.html#a10">00199</a> distsize_t <a class="code" href="class_sc__MemoryGrp.html#a10">offset</a>(<font class="keywordtype">int</font> node)<font class="keyword"> </font>{ <font class="keywordflow">return</font> offsets_[node]; }
<a name="l00201"></a><a class="code" href="class_sc__MemoryGrp.html#a11">00201</a> distsize_t <a class="code" href="class_sc__MemoryGrp.html#a11">totalsize</a>()<font class="keyword"> </font>{ <font class="keywordflow">return</font> offsets_[n_]; }
00202
00204 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a12">activate</a>();
00206 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a13">deactivate</a>();
00207
00209 <font class="keyword">virtual</font> <font class="keywordtype">void</font> *<a class="code" href="class_sc__MemoryGrp.html#a14">obtain_writeonly</a>(distsize_t offset, <font class="keywordtype">int</font> size) = 0;
00215 <font class="keyword">virtual</font> <font class="keywordtype">void</font> *<a class="code" href="class_sc__MemoryGrp.html#a15">obtain_readwrite</a>(distsize_t offset, <font class="keywordtype">int</font> size) = 0;
00217 <font class="keyword">virtual</font> <font class="keywordtype">void</font> *<a class="code" href="class_sc__MemoryGrp.html#a16">obtain_readonly</a>(distsize_t offset, <font class="keywordtype">int</font> size) = 0;
00219 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a17">release_readonly</a>(<font class="keywordtype">void</font> *data, distsize_t offset, <font class="keywordtype">int</font> size) = 0;
00221 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a18">release_writeonly</a>(<font class="keywordtype">void</font> *data, distsize_t offset, <font class="keywordtype">int</font> size)=0;
00224 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a19">release_readwrite</a>(<font class="keywordtype">void</font> *data, distsize_t offset, <font class="keywordtype">int</font> size)=0;
00225
00226 <font class="keyword">virtual</font> <font class="keywordtype">void</font> sum_reduction(<font class="keywordtype">double</font> *data, distsize_t doffset, <font class="keywordtype">int</font> dsize);
00227 <font class="keyword">virtual</font> <font class="keywordtype">void</font> sum_reduction_on_node(<font class="keywordtype">double</font> *data, size_t doffset, <font class="keywordtype">int</font> dsize,
00228 <font class="keywordtype">int</font> node = -1);
00229
00232 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a22">sync</a>() = 0;
00233
00240 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a23">catchup</a>();
00241
00243 <font class="keyword">virtual</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#a24">print</a>(std::ostream &o = ExEnv::out0()) <font class="keyword">const</font>;
00244
00252 <font class="keyword">static</font> MemoryGrp* <a class="code" href="class_sc__MemoryGrp.html#d0">initial_memorygrp</a>(<font class="keywordtype">int</font> &argc, <font class="keywordtype">char</font>** argv);
00253 <font class="keyword">static</font> MemoryGrp* <a class="code" href="class_sc__MemoryGrp.html#d0">initial_memorygrp</a>();
00256 <font class="keyword">static</font> <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrp.html#d2">set_default_memorygrp</a>(<font class="keyword">const</font> Ref<MemoryGrp>&);
00258 <font class="keyword">static</font> MemoryGrp* <a class="code" href="class_sc__MemoryGrp.html#d3">get_default_memorygrp</a>();
00259 };
00260
00261
00267 template <class data_t>
<a name="l00268"></a><a class="code" href="class_sc__MemoryGrpBuf.html">00268</a> <font class="keyword">class </font>MemoryGrpBuf {
00269 Ref<MemoryGrp> grp_;
00270 <font class="keyword">enum</font> AccessType { None, Read, Write, ReadWrite };
00271 AccessType accesstype_;
00272 data_t *data_;
00273 distsize_t offset_;
00274 <font class="keywordtype">int</font> length_;
00275 <font class="keyword">public</font>:
00279 <a class="code" href="class_sc__MemoryGrpBuf.html#a0">MemoryGrpBuf</a>(<font class="keyword">const</font> Ref<MemoryGrp> &);
00284 data_t *<a class="code" href="class_sc__MemoryGrpBuf.html#a1">writeonly</a>(distsize_t offset, <font class="keywordtype">int</font> length);
00289 data_t *<a class="code" href="class_sc__MemoryGrpBuf.html#a2">readwrite</a>(distsize_t offset, <font class="keywordtype">int</font> length);
00294 <font class="keyword">const</font> data_t *<a class="code" href="class_sc__MemoryGrpBuf.html#a3">readonly</a>(distsize_t offset, <font class="keywordtype">int</font> length);
00298 data_t *<a class="code" href="class_sc__MemoryGrpBuf.html#a4">writeonly_on_node</a>(size_t offset, <font class="keywordtype">int</font> length, <font class="keywordtype">int</font> node = -1);
00299 data_t *readwrite_on_node(size_t offset, <font class="keywordtype">int</font> length, <font class="keywordtype">int</font> node = -1);
00300 <font class="keyword">const</font> data_t *readonly_on_node(size_t offset, <font class="keywordtype">int</font> length, <font class="keywordtype">int</font> node = -1);
00304 <font class="keywordtype">void</font> <a class="code" href="class_sc__MemoryGrpBuf.html#a7">release</a>();
<a name="l00306"></a><a class="code" href="class_sc__MemoryGrpBuf.html#a8">00306</a> <font class="keywordtype">int</font> <a class="code" href="class_sc__MemoryGrpBuf.html#a8">length</a>()<font class="keyword"> const </font>{ <font class="keywordflow">return</font> length_; }
00307 };
00308
00310 <font class="comment">// MemoryGrpBuf members</font>
00311
00312 template <class data_t>
<a name="l00313"></a><a class="code" href="class_sc__MemoryGrpBuf.html#a0">00313</a> MemoryGrpBuf<data_t>::MemoryGrpBuf(<font class="keyword">const</font> Ref<MemoryGrp> & grp)<font class="keyword"></font>
00314 <font class="keyword"></font>{
00315 grp_ = grp;
00316 accesstype_ = None;
00317 }
00318
00319 template <class data_t>
00320 data_t *
<a name="l00321"></a><a class="code" href="class_sc__MemoryGrpBuf.html#a1">00321</a> MemoryGrpBuf<data_t>::writeonly(distsize_t offset, <font class="keywordtype">int</font> length)<font class="keyword"></font>
00322 <font class="keyword"></font>{
00323 <font class="keywordflow">if</font> (accesstype_ != None) <a class="code" href="class_sc__MemoryGrpBuf.html#a7">release</a>();
00324 data_ = (data_t *) grp_->obtain_writeonly(<font class="keyword">sizeof</font>(data_t)*offset,
00325 <font class="keyword">sizeof</font>(data_t)*length);
00326 offset_ = offset;
00327 length_ = length;
00328 accesstype_ = Write;
00329 <font class="keywordflow">return</font> data_;
00330 }
00331
00332 template <class data_t>
00333 data_t *
<a name="l00334"></a><a class="code" href="class_sc__MemoryGrpBuf.html#a2">00334</a> MemoryGrpBuf<data_t>::readwrite(distsize_t offset, <font class="keywordtype">int</font> length)<font class="keyword"></font>
00335 <font class="keyword"></font>{
00336 <font class="keywordflow">if</font> (accesstype_ != None) <a class="code" href="class_sc__MemoryGrpBuf.html#a7">release</a>();
00337 data_ = (data_t *) grp_->obtain_readwrite(<font class="keyword">sizeof</font>(data_t)*offset,
00338 <font class="keyword">sizeof</font>(data_t)*length);
00339 offset_ = offset;
00340 length_ = length;
00341 accesstype_ = ReadWrite;
00342 <font class="keywordflow">return</font> data_;
00343 }
00344
00345 template <class data_t>
00346 <font class="keyword">const</font> data_t *
<a name="l00347"></a><a class="code" href="class_sc__MemoryGrpBuf.html#a3">00347</a> MemoryGrpBuf<data_t>::readonly(distsize_t offset, <font class="keywordtype">int</font> length)<font class="keyword"></font>
00348 <font class="keyword"></font>{
00349 <font class="keywordflow">if</font> (accesstype_ != None) <a class="code" href="class_sc__MemoryGrpBuf.html#a7">release</a>();
00350 data_ = (data_t *) grp_->obtain_readonly(<font class="keyword">sizeof</font>(data_t)*offset,
00351 <font class="keyword">sizeof</font>(data_t)*length);
00352 offset_ = offset;
00353 length_ = length;
00354 accesstype_ = Read;
00355 <font class="keywordflow">return</font> data_;
00356 }
00357
00358 template <class data_t>
00359 data_t *
<a name="l00360"></a><a class="code" href="class_sc__MemoryGrpBuf.html#a4">00360</a> MemoryGrpBuf<data_t>::writeonly_on_node(size_t offset, <font class="keywordtype">int</font> length, <font class="keywordtype">int</font> node)<font class="keyword"></font>
00361 <font class="keyword"></font>{
00362 <font class="keywordflow">if</font> (node == -1) node = grp_->me();
00363 <font class="keywordflow">return</font> <a class="code" href="class_sc__MemoryGrpBuf.html#a1">writeonly</a>(offset + grp_->offset(node)/<font class="keyword">sizeof</font>(data_t), length);
00364 }
00365
00366 template <class data_t>
00367 data_t *
00368 MemoryGrpBuf<data_t>::readwrite_on_node(size_t offset, <font class="keywordtype">int</font> length, <font class="keywordtype">int</font> node)<font class="keyword"></font>
00369 <font class="keyword"></font>{
00370 <font class="keywordflow">if</font> (node == -1) node = grp_->me();
00371 <font class="keywordflow">return</font> <a class="code" href="class_sc__MemoryGrpBuf.html#a2">readwrite</a>(offset + grp_->offset(node)/<font class="keyword">sizeof</font>(data_t), length);
00372 }
00373
00374 template <class data_t>
00375 <font class="keyword">const</font> data_t *
00376 MemoryGrpBuf<data_t>::readonly_on_node(size_t offset, <font class="keywordtype">int</font> length, <font class="keywordtype">int</font> node)<font class="keyword"></font>
00377 <font class="keyword"></font>{
00378 <font class="keywordflow">if</font> (node == -1) node = grp_->me();
00379 <font class="keywordflow">return</font> <a class="code" href="class_sc__MemoryGrpBuf.html#a3">readonly</a>(offset + grp_->offset(node)/<font class="keyword">sizeof</font>(data_t), length);
00380 }
00381
00382 template <class data_t>
00383 <font class="keywordtype">void</font>
<a name="l00384"></a><a class="code" href="class_sc__MemoryGrpBuf.html#a7">00384</a> MemoryGrpBuf<data_t>::release()<font class="keyword"></font>
00385 <font class="keyword"></font>{
00386 <font class="keywordflow">if</font> (accesstype_ == Write)
00387 grp_->release_writeonly((data_t *)data_,
00388 <font class="keyword">sizeof</font>(data_t)*offset_, <font class="keyword">sizeof</font>(data_t)*length_);
00389 <font class="keywordflow">if</font> (accesstype_ == Read)
00390 grp_->release_readonly(data_, <font class="keyword">sizeof</font>(data_t)*offset_,
00391 <font class="keyword">sizeof</font>(data_t)*length_);
00392 <font class="keywordflow">if</font> (accesstype_ == ReadWrite)
00393 grp_->release_readwrite(data_, <font class="keyword">sizeof</font>(data_t)*offset_,
00394 <font class="keyword">sizeof</font>(data_t)*length_);
00395
00396 accesstype_ = None;
00397 }
00398
00399 }
00400
00401 <font class="preprocessor">#endif</font>
00402 <font class="preprocessor"></font>
00403 <font class="comment">// Local Variables:</font>
00404 <font class="comment">// mode: c++</font>
00405 <font class="comment">// c-file-style: "CLJ"</font>
00406 <font class="comment">// End:</font>
</div></pre><hr>
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