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<hr><h1>buf_fifo.cpp</h1><a href="buf__fifo_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025
00026 <font class="preprocessor">#include "<a class="code" href="stdmisc_8h.html">stdmisc.h</a>"</font>
00027
00028 <font class="preprocessor">#include "<a class="code" href="time__nl_8h.html">nel/misc/time_nl.h</a>"</font>
00029
00030 <font class="preprocessor">#include "<a class="code" href="buf__fifo_8h.html">nel/misc/buf_fifo.h</a>"</font>
00031
00032 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00033
<a name="l00034"></a><a class="code" href="buf__fifo_8cpp.html#a0">00034</a> <font class="preprocessor">#define DEBUG_FIFO 0</font>
00035 <font class="preprocessor"></font>
00036 <font class="keyword">namespace </font>NLMISC {
00037
00038
<a name="l00039"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a0">00039</a> CBufFIFO::CBufFIFO() : _Buffer(NULL), _BufferSize(0), _Empty(true), _Head(NULL), _Tail(NULL), _Rewinder(NULL)
00040 {
00041 <font class="comment">// reset statistic</font>
00042 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o6">_BiggestBlock</a> = 0;
00043 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o7">_SmallestBlock</a> = 999999999;
00044 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o8">_BiggestBuffer</a> = 0;
00045 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o9">_SmallestBuffer</a> = 999999999;
00046 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o10">_Pushed</a> = 0;
00047 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o11">_Fronted</a> = 0;
00048 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o12">_Resized</a> = 0;
00049 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o13">_PushedTime</a> = 0;
00050 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o14">_FrontedTime</a> = 0;
00051 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o15">_ResizedTime</a> = 0;
00052 }
00053
<a name="l00054"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a1">00054</a> CBufFIFO::~CBufFIFO()
00055 {
00056 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a> != NULL)
00057 {
00058 <font class="keyword">delete</font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00059 <font class="preprocessor">#if DEBUG_FIFO</font>
00060 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p delete"</font>, <font class="keyword">this</font>);
00061 <font class="preprocessor">#endif</font>
00062 <font class="preprocessor"></font> }
00063 }
00064
<a name="l00065"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a4">00065</a> <font class="keywordtype">void</font> CBufFIFO::push (<font class="keyword">const</font> uint8 *buffer, uint32 size)
00066 {
00067 <font class="comment">// if the buffer is more than 1 meg, there s surely a problem, no?</font>
00068 <font class="comment">// nlassert( buffer.size() < 1000000 ); // size check in debug mode</font>
00069
00070 <a class="code" href="namespaceNLMISC.html#a184">TTicks</a> before = CTime::getPerformanceTime();
00071
00072 <font class="preprocessor">#if DEBUG_FIFO</font>
00073 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p push(%d)"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00074 <font class="preprocessor">#endif</font>
00075 <font class="preprocessor"></font>
00076 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> > 0 && <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> < pow(2, <font class="keyword">sizeof</font>(<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a>)*8));
00077
00078 <font class="comment">// stat code</font>
00079 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> > <a class="code" href="classNLMISC_1_1CBufFIFO.html#o6">_BiggestBlock</a>) <a class="code" href="classNLMISC_1_1CBufFIFO.html#o6">_BiggestBlock</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00080 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> < <a class="code" href="classNLMISC_1_1CBufFIFO.html#o7">_SmallestBlock</a>) <a class="code" href="classNLMISC_1_1CBufFIFO.html#o7">_SmallestBlock</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00081 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o10">_Pushed</a>++;
00082
00083 <font class="keywordflow">while</font> (!<a class="code" href="classNLMISC_1_1CBufFIFO.html#c0">canFit</a> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> + <font class="keyword">sizeof</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a>)))
00084 {
00085 <a class="code" href="classNLMISC_1_1CBufFIFO.html#a11">resize</a>(<a class="code" href="classNLMISC_1_1CBufFIFO.html#o1">_BufferSize</a> * 2);
00086 }
00087
00088 *(<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a> *)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00089 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> += <font class="keyword">sizeof</font>(TFifoSize);
00090
00091 CFastMem::memcpy(<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>, buffer, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00092
00093 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> += <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00094
00095 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o2">_Empty</a> = <font class="keyword">false</font>;
00096
00097 <font class="comment">// stat code</font>
00098 <a class="code" href="namespaceNLMISC.html#a184">TTicks</a> after = CTime::getPerformanceTime();
00099 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o13">_PushedTime</a> += after - before;
00100
00101 <font class="preprocessor">#if DEBUG_FIFO</font>
00102 <font class="preprocessor"></font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a15">display</a> ();
00103 <font class="preprocessor">#endif</font>
00104 <font class="preprocessor"></font>}
00105
<a name="l00106"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a5">00106</a> <font class="keywordtype">void</font> CBufFIFO::push(<font class="keyword">const</font> std::vector<uint8> &buffer1, <font class="keyword">const</font> std::vector<uint8> &buffer2)
00107 {
00108 <a class="code" href="namespaceNLMISC.html#a184">TTicks</a> before = CTime::getPerformanceTime();
00109
00110 <a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> = buffer1.size() + buffer2.size ();
00111
00112 <font class="preprocessor">#if DEBUG_FIFO</font>
00113 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p push2(%d)"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00114 <font class="preprocessor">#endif</font>
00115 <font class="preprocessor"></font>
00116 <a class="code" href="debug_8h.html#a6">nlassert</a>((buffer1.size() + buffer2.size ()) > 0 && (buffer1.size() + buffer2.size ()) < pow(2, <font class="keyword">sizeof</font>(<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a>)*8));
00117
00118 <font class="comment">// avoid too big fifo</font>
00119 <font class="keywordflow">if</font> (this-><a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>() > 10000000)
00120 {
00121 <font class="keywordflow">throw</font> Exception (<font class="stringliteral">"CBufFIFO::push(): stack full (more than 10mb)"</font>);
00122 }
00123
00124
00125 <font class="comment">// stat code</font>
00126 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> > <a class="code" href="classNLMISC_1_1CBufFIFO.html#o6">_BiggestBlock</a>) <a class="code" href="classNLMISC_1_1CBufFIFO.html#o6">_BiggestBlock</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00127 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> < <a class="code" href="classNLMISC_1_1CBufFIFO.html#o7">_SmallestBlock</a>) <a class="code" href="classNLMISC_1_1CBufFIFO.html#o7">_SmallestBlock</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00128
00129 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o10">_Pushed</a>++;
00130
00131 <font class="comment">// resize while the buffer is enough big to accept the block</font>
00132 <font class="keywordflow">while</font> (!<a class="code" href="classNLMISC_1_1CBufFIFO.html#c0">canFit</a> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> + <font class="keyword">sizeof</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a>)))
00133 {
00134 <a class="code" href="classNLMISC_1_1CBufFIFO.html#a11">resize</a>(<a class="code" href="classNLMISC_1_1CBufFIFO.html#o1">_BufferSize</a> * 2);
00135 }
00136
00137 <font class="comment">// store the size of the block</font>
00138 *(<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a> *)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00139 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> += <font class="keyword">sizeof</font>(TFifoSize);
00140
00141 <font class="comment">// store the block itself</font>
00142 CFastMem::memcpy(<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>, &(buffer1[0]), buffer1.size ());
00143 CFastMem::memcpy(<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> + buffer1.size(), &(buffer2[0]), buffer2.size ());
00144 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> += <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00145
00146 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o2">_Empty</a> = <font class="keyword">false</font>;
00147
00148 <font class="comment">// stat code</font>
00149 <a class="code" href="namespaceNLMISC.html#a184">TTicks</a> after = CTime::getPerformanceTime();
00150 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o13">_PushedTime</a> += after - before;
00151
00152 <font class="preprocessor">#if DEBUG_FIFO</font>
00153 <font class="preprocessor"></font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a15">display</a> ();
00154 <font class="preprocessor">#endif</font>
00155 <font class="preprocessor"></font>}
00156
<a name="l00157"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a10">00157</a> <font class="keywordtype">void</font> CBufFIFO::pop ()
00158 {
00159 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a12">empty</a> ())
00160 {
00161 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Try to pop an empty fifo!"</font>);
00162 <font class="keywordflow">return</font>;
00163 }
00164
00165 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> != NULL && <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> == <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a>)
00166 {
00167 <font class="preprocessor">#if DEBUG_FIFO</font>
00168 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p pop rewind!"</font>, <font class="keyword">this</font>);
00169 <font class="preprocessor">#endif</font>
00170 <font class="preprocessor"></font>
00171 <font class="comment">// need to rewind</font>
00172 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00173 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> = NULL;
00174 }
00175
00176 <a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> = *(<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a> *)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>;
00177
00178 <font class="preprocessor">#if DEBUG_FIFO</font>
00179 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p pop(%d)"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00180 <font class="preprocessor">#endif</font>
00181 <font class="preprocessor"></font>
00182 <font class="preprocessor">#ifdef NL_DEBUG</font>
00183 <font class="preprocessor"></font> <font class="comment">// clear the message to be sure user doesn't use it anymore</font>
00184 memset (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>, <font class="charliteral">'-'</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> + <font class="keyword">sizeof</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a>));
00185 <font class="preprocessor">#endif</font>
00186 <font class="preprocessor"></font>
00187 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> += <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> + <font class="keyword">sizeof</font> (TFifoSize);
00188
00189 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> == <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>) <a class="code" href="classNLMISC_1_1CBufFIFO.html#o2">_Empty</a> = <font class="keyword">true</font>;
00190
00191 <font class="preprocessor">#if DEBUG_FIFO</font>
00192 <font class="preprocessor"></font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a15">display</a> ();
00193 <font class="preprocessor">#endif</font>
00194 <font class="preprocessor"></font>}
00195
<a name="l00196"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a9">00196</a> uint8 CBufFIFO::frontLast ()
00197 {
00198 uint8 *tail = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>;
00199
00200 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a12">empty</a> ())
00201 {
00202 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Try to get the front of an empty fifo!"</font>);
00203 <font class="keywordflow">return</font> 0;
00204 }
00205
00206 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> != NULL && tail == <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a>)
00207 {
00208 <font class="preprocessor">#if DEBUG_FIFO</font>
00209 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p front rewind!"</font>, <font class="keyword">this</font>);
00210 <font class="preprocessor">#endif</font>
00211 <font class="preprocessor"></font>
00212 <font class="comment">// need to rewind</font>
00213 tail = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00214 }
00215
00216 <a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> = *(<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a> *)tail;
00217
00218 <font class="preprocessor">#if DEBUG_FIFO</font>
00219 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p frontLast() returns %d "</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>, *(tail+<font class="keyword">sizeof</font>(<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a>)+<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>-1));
00220 <font class="preprocessor">#endif</font>
00221 <font class="preprocessor"></font>
00222 <font class="keywordflow">return</font> *(tail+<font class="keyword">sizeof</font>(TFifoSize)+<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>-1);
00223 }
00224
00225
<a name="l00226"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a6">00226</a> <font class="keywordtype">void</font> CBufFIFO::front (vector<uint8> &buffer)
00227 {
00228 uint8 *tmpbuffer;
00229 uint32 <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00230
00231 buffer.clear ();
00232
00233 <a class="code" href="classNLMISC_1_1CBufFIFO.html#a6">front</a> (tmpbuffer, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00234
00235 buffer.resize (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00236
00237 CFastMem::memcpy (&(buffer[0]), tmpbuffer, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00238
00239 <font class="comment">/* TTicks before = CTime::getPerformanceTime ();</font>
00240 <font class="comment"></font>
00241 <font class="comment"> uint8 *tail = _Tail;</font>
00242 <font class="comment"> </font>
00243 <font class="comment"> buffer.clear ();</font>
00244 <font class="comment"></font>
00245 <font class="comment"> if (empty ())</font>
00246 <font class="comment"> {</font>
00247 <font class="comment"> nlwarning("Try to get the front of an empty fifo!");</font>
00248 <font class="comment"> return;</font>
00249 <font class="comment"> }</font>
00250 <font class="comment"></font>
00251 <font class="comment"> _Fronted++;</font>
00252 <font class="comment"> </font>
00253 <font class="comment"> if (_Rewinder != NULL && tail == _Rewinder)</font>
00254 <font class="comment"> {</font>
00255 <font class="comment">#if DEBUG_FIFO</font>
00256 <font class="comment"> nldebug("%p front rewind!", this);</font>
00257 <font class="comment">#endif</font>
00258 <font class="comment"></font>
00259 <font class="comment"> // need to rewind</font>
00260 <font class="comment"> tail = _Buffer;</font>
00261 <font class="comment"> }</font>
00262 <font class="comment"></font>
00263 <font class="comment"> TFifoSize size = *(TFifoSize *)tail;</font>
00264 <font class="comment"></font>
00265 <font class="comment">#if DEBUG_FIFO</font>
00266 <font class="comment"> nldebug("%p front(%d)", this, size);</font>
00267 <font class="comment">#endif</font>
00268 <font class="comment"></font>
00269 <font class="comment"> tail += sizeof (TFifoSize);</font>
00270 <font class="comment"></font>
00271 <font class="comment"> buffer.resize (size);</font>
00272 <font class="comment"></font>
00273 <font class="comment"> CFastMem::memcpy (&(buffer[0]), tail, size);</font>
00274 <font class="comment"></font>
00275 <font class="comment"> // stat code</font>
00276 <font class="comment"> TTicks after = CTime::getPerformanceTime ();</font>
00277 <font class="comment"> _FrontedTime += after - before;</font>
00278 <font class="comment"></font>
00279 <font class="comment">#if DEBUG_FIFO</font>
00280 <font class="comment"> display ();</font>
00281 <font class="comment">#endif</font>
00282 <font class="comment">*/</font>}
00283
00284
<a name="l00285"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a7">00285</a> <font class="keywordtype">void</font> CBufFIFO::front (<a class="code" href="classNLMISC_1_1CMemStream.html">NLMISC::CMemStream</a> &buffer)
00286 {
00287 uint8 *tmpbuffer;
00288 uint32 <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00289
00290 buffer.<a class="code" href="classNLMISC_1_1CMemStream.html#a9">clear</a> ();
00291
00292 <a class="code" href="classNLMISC_1_1CBufFIFO.html#a6">front</a> (tmpbuffer, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00293
00294 buffer.<a class="code" href="classNLMISC_1_1CMemStream.html#a13">fill</a> (tmpbuffer, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00295
00296 <font class="comment">/*</font>
00297 <font class="comment"> TTicks before = CTime::getPerformanceTime ();</font>
00298 <font class="comment"></font>
00299 <font class="comment"> uint8 *tail = _Tail;</font>
00300 <font class="comment"> </font>
00301 <font class="comment"> buffer.clear ();</font>
00302 <font class="comment"></font>
00303 <font class="comment"> if (empty ())</font>
00304 <font class="comment"> {</font>
00305 <font class="comment"> nlwarning("Try to get the front of an empty fifo!");</font>
00306 <font class="comment"> return;</font>
00307 <font class="comment"> }</font>
00308 <font class="comment"></font>
00309 <font class="comment"> _Fronted++;</font>
00310 <font class="comment"> </font>
00311 <font class="comment"> if (_Rewinder != NULL && tail == _Rewinder)</font>
00312 <font class="comment"> {</font>
00313 <font class="comment">#if DEBUG_FIFO</font>
00314 <font class="comment"> nldebug("%p front rewind!", this);</font>
00315 <font class="comment">#endif</font>
00316 <font class="comment"></font>
00317 <font class="comment"> // need to rewind</font>
00318 <font class="comment"> tail = _Buffer;</font>
00319 <font class="comment"> }</font>
00320 <font class="comment"></font>
00321 <font class="comment"> TFifoSize size = *(TFifoSize *)tail;</font>
00322 <font class="comment"></font>
00323 <font class="comment">#if DEBUG_FIFO</font>
00324 <font class="comment"> nldebug("%p front(%d)", this, size);</font>
00325 <font class="comment">#endif</font>
00326 <font class="comment"></font>
00327 <font class="comment"> tail += sizeof (TFifoSize);</font>
00328 <font class="comment"></font>
00329 <font class="comment"> //buffer.resize (size);</font>
00330 <font class="comment"> //CFastMem::memcpy (&(buffer[0]), tail, size);</font>
00331 <font class="comment"></font>
00332 <font class="comment"> buffer.fill (tail, size);</font>
00333 <font class="comment"></font>
00334 <font class="comment"> // stat code</font>
00335 <font class="comment"> TTicks after = CTime::getPerformanceTime ();</font>
00336 <font class="comment"> _FrontedTime += after - before;</font>
00337 <font class="comment"></font>
00338 <font class="comment">#if DEBUG_FIFO</font>
00339 <font class="comment"> display ();</font>
00340 <font class="comment">#endif*/</font>
00341 }
00342
<a name="l00343"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a8">00343</a> <font class="keywordtype">void</font> CBufFIFO::front (uint8 *&buffer, uint32 &size)
00344 {
00345 <a class="code" href="namespaceNLMISC.html#a184">TTicks</a> before = CTime::getPerformanceTime ();
00346
00347 uint8 *tail = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>;
00348
00349 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a12">empty</a> ())
00350 {
00351 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Try to get the front of an empty fifo!"</font>);
00352 <font class="keywordflow">return</font>;
00353 }
00354
00355 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o11">_Fronted</a>++;
00356
00357 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> != NULL && tail == <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a>)
00358 {
00359 <font class="preprocessor">#if DEBUG_FIFO</font>
00360 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p front rewind!"</font>, <font class="keyword">this</font>);
00361 <font class="preprocessor">#endif</font>
00362 <font class="preprocessor"></font>
00363 <font class="comment">// need to rewind</font>
00364 tail = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00365 }
00366
00367 <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> = *(<a class="code" href="classNLMISC_1_1CBufFIFO.html#u0">TFifoSize</a> *)tail;
00368
00369 <font class="preprocessor">#if DEBUG_FIFO</font>
00370 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p front(%d)"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00371 <font class="preprocessor">#endif</font>
00372 <font class="preprocessor"></font>
00373 tail += <font class="keyword">sizeof</font> (TFifoSize);
00374
00375 <font class="comment">// stat code</font>
00376 <a class="code" href="namespaceNLMISC.html#a184">TTicks</a> after = CTime::getPerformanceTime ();
00377 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o14">_FrontedTime</a> += after - before;
00378
00379 <font class="preprocessor">#if DEBUG_FIFO</font>
00380 <font class="preprocessor"></font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a15">display</a> ();
00381 <font class="preprocessor">#endif</font>
00382 <font class="preprocessor"></font>
00383 buffer = tail;
00384 }
00385
00386
00387
<a name="l00388"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a13">00388</a> <font class="keywordtype">void</font> CBufFIFO::clear ()
00389 {
00390 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00391 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> = NULL;
00392 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o2">_Empty</a> = <font class="keyword">true</font>;
00393 }
00394
<a name="l00395"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">00395</a> uint32 <a class="code" href="cf__lexical_8cpp.html#a94">CBufFIFO::size</a> ()
00396 {
00397 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a12">empty</a> ())
00398 {
00399 <font class="keywordflow">return</font> 0;
00400 }
00401 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> == <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>)
00402 {
00403 <font class="comment">// buffer is full</font>
00404 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> == NULL)
00405 <font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#o1">_BufferSize</a>;
00406 <font class="keywordflow">else</font>
00407 <font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00408 }
00409 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> > <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>)
00410 {
00411 <font class="keywordflow">return</font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>;
00412 }
00413 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> < <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>)
00414 {
00415 <a class="code" href="debug_8h.html#a6">nlassert</a> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> != NULL);
00416 <font class="keywordflow">return</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>) + (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>);
00417 }
00418 <a class="code" href="debug_8h.html#a12">nlstop</a>;
00419 <font class="keywordflow">return</font> 0;
00420 }
00421
<a name="l00422"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a11">00422</a> <font class="keywordtype">void</font> CBufFIFO::resize (uint32 size)
00423 {
00424 <a class="code" href="namespaceNLMISC.html#a184">TTicks</a> before = CTime::getPerformanceTime();
00425
00426 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> == 0) <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> = 100;
00427
00428 <font class="preprocessor">#if DEBUG_FIFO</font>
00429 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p resize(%d)"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00430 <font class="preprocessor">#endif</font>
00431 <font class="preprocessor"></font>
00432 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> > <a class="code" href="classNLMISC_1_1CBufFIFO.html#o8">_BiggestBuffer</a>) <a class="code" href="classNLMISC_1_1CBufFIFO.html#o8">_BiggestBuffer</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00433 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> < <a class="code" href="classNLMISC_1_1CBufFIFO.html#o9">_SmallestBuffer</a>) <a class="code" href="classNLMISC_1_1CBufFIFO.html#o9">_SmallestBuffer</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00434
00435 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o12">_Resized</a>++;
00436
00437 uint32 UsedSize = <a class="code" href="cf__lexical_8cpp.html#a94">CBufFIFO::size</a>();
00438
00439 <font class="comment">// creer un nouveau tableau et copie l ancien dans le nouveau.</font>
00440 <font class="keywordflow">if</font> (size < _BufferSize && UsedSize > <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>)
00441 {
00442 <font class="comment">// probleme, on a pas assez de place pour caser les datas => on fait pas</font>
00443 <a class="code" href="debug_8h.html#a2">nlwarning</a>(<font class="stringliteral">"Can't resize the FIFO because there's not enough room in the new wanted buffer (%d bytes needed at least)"</font>, UsedSize);
00444 <font class="keywordflow">return</font>;
00445 }
00446
00447 uint8 *NewBuffer = <font class="keyword">new</font> uint8[<a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>];
00448 <font class="keywordflow">if</font> (NewBuffer == NULL)
00449 {
00450 <a class="code" href="debug_8h.html#a3">nlerror</a>(<font class="stringliteral">"Not enough memory to resize the FIFO to %u bytes"</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00451 }
00452 <font class="preprocessor">#ifdef NL_DEBUG</font>
00453 <font class="preprocessor"></font> <font class="comment">// clear the message to be sure user doesn't use it anymore</font>
00454 memset (NewBuffer, <font class="charliteral">'-'</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00455 <font class="preprocessor">#endif</font>
00456 <font class="preprocessor"></font>
00457 <font class="preprocessor">#if DEBUG_FIFO</font>
00458 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p new %d bytes"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>);
00459 <font class="preprocessor">#endif</font>
00460 <font class="preprocessor"></font>
00461 <font class="comment">// copy the old buffer to the new one</font>
00462 <font class="comment">// if _Tail == _Head => empty fifo, don't copy anything</font>
00463 <font class="keywordflow">if</font> (!<a class="code" href="classNLMISC_1_1CBufFIFO.html#a12">empty</a>())
00464 {
00465 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> < <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>)
00466 {
00467 CFastMem::memcpy (NewBuffer, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>, UsedSize);
00468 }
00469 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> >= <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>)
00470 {
00471 <a class="code" href="debug_8h.html#a6">nlassert</a> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> != NULL);
00472
00473 uint size1 = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>;
00474 CFastMem::memcpy (NewBuffer, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>, size1);
00475 uint size2 = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00476 CFastMem::memcpy (NewBuffer + size1, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>, size2);
00477
00478 <a class="code" href="debug_8h.html#a6">nlassert</a> (size1+size2==UsedSize);
00479 }
00480 }
00481
00482 <font class="comment">// resync the circular pointer</font>
00483 <font class="comment">// Warning: don't invert these 2 lines position or it ll not work</font>
00484 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> = NewBuffer;
00485 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> = NewBuffer + UsedSize;
00486 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> = NULL;
00487
00488 <font class="comment">// delete old buffer if needed</font>
00489 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a> != NULL)
00490 {
00491 <font class="keyword">delete</font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00492 <font class="preprocessor">#if DEBUG_FIFO</font>
00493 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a> (<font class="stringliteral">"delete"</font>, <font class="keyword">this</font>);
00494 <font class="preprocessor">#endif</font>
00495 <font class="preprocessor"></font> }
00496
00497 <font class="comment">// affect new buffer</font>
00498 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a> = NewBuffer;
00499 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o1">_BufferSize</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>;
00500
00501 <a class="code" href="namespaceNLMISC.html#a184">TTicks</a> after = CTime::getPerformanceTime();
00502
00503 <a class="code" href="classNLMISC_1_1CBufFIFO.html#o15">_ResizedTime</a> += after - before;
00504
00505 <font class="preprocessor">#if DEBUG_FIFO</font>
00506 <font class="preprocessor"></font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a15">display</a> ();
00507 <font class="preprocessor">#endif</font>
00508 <font class="preprocessor"></font>}
00509
<a name="l00510"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a16">00510</a> <font class="keywordtype">void</font> CBufFIFO::displayStats ()
00511 {
00512 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _BiggestBlock: %d"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o6">_BiggestBlock</a>);
00513 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _SmallestBlock: %d"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o7">_SmallestBlock</a>);
00514 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _BiggestBuffer: %d"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o8">_BiggestBuffer</a>);
00515 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _SmallestBuffer: %d"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o9">_SmallestBuffer</a>);
00516 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _Pushed : %d"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o10">_Pushed</a>);
00517 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _Fronted: %d"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o11">_Fronted</a>);
00518 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _Resized: %d"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o12">_Resized</a>);
00519 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _PushedTime: %"</font>NL_I64<font class="stringliteral">"d %f"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o13">_PushedTime</a>, (<font class="keywordtype">double</font>)(sint64)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o13">_PushedTime</a> / (<font class="keywordtype">double</font>)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o10">_Pushed</a>);
00520 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _FrontedTime: %"</font>NL_I64<font class="stringliteral">"d %f"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o14">_FrontedTime</a>, (<font class="keywordtype">double</font>)(sint64)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o14">_FrontedTime</a> / (<font class="keywordtype">double</font>)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o11">_Fronted</a>);
00521 <a class="code" href="debug_8h.html#a1">nlinfo</a> (<font class="stringliteral">"%p _ResizedTime: %"</font>NL_I64<font class="stringliteral">"d %f"</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o15">_ResizedTime</a>, (<font class="keywordtype">double</font>)(sint64)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o15">_ResizedTime</a> / (<font class="keywordtype">double</font>)<a class="code" href="classNLMISC_1_1CBufFIFO.html#o12">_Resized</a>);
00522 }
00523
<a name="l00524"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#a15">00524</a> <font class="keywordtype">void</font> CBufFIFO::display ()
00525 {
00526 <font class="keywordtype">int</font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a> = 64;
00527 <font class="keywordtype">int</font> gran = <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>/30;
00528
00529 <font class="keywordtype">char</font> str[1024];
00530
00531 <a class="code" href="namespaceNLMISC.html#a211">smprintf</a>(str, 1024, <font class="stringliteral">"%p %p (%5d %5d) %p %p %p "</font>, <font class="keyword">this</font>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o1">_BufferSize</a>, CBufFIFO::size(), <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a>, <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>);
00532
00533 <font class="keywordtype">int</font> i;
00534 <font class="keywordflow">for</font> (i = 0; i < (sint32) <a class="code" href="classNLMISC_1_1CBufFIFO.html#o1">_BufferSize</a>; i+= gran)
00535 {
00536 uint8 *pos = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a> + i;
00537 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> >= pos && <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> < pos + gran)
00538 {
00539 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> >= pos && <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> < pos + gran)
00540 {
00541 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> != NULL && <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> >= pos && <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> < pos + gran)
00542 {
00543 strncat (str, <font class="stringliteral">"*"</font>, 1024);
00544 }
00545 <font class="keywordflow">else</font>
00546 {
00547 strncat (str, <font class="stringliteral">"@"</font>, 1024);
00548 }
00549 }
00550 <font class="keywordflow">else</font>
00551 {
00552 strncat (str, <font class="stringliteral">"T"</font>, 1024);
00553 }
00554 }
00555 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> >= pos && <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> < pos + gran)
00556 {
00557 strncat (str, <font class="stringliteral">"H"</font>, 1024);
00558 }
00559 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> != NULL && <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> >= pos && <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> < pos + gran)
00560 {
00561 strncat (str, <font class="stringliteral">"R"</font>, 1024);
00562 }
00563 <font class="keywordflow">else</font>
00564 {
00565 <font class="keywordflow">if</font> (strlen(str) < 1023)
00566 {
00567 uint32 p = strlen(str);
00568 <font class="keywordflow">if</font> (isprint(*pos))
00569 str[p] = *pos;
00570 <font class="keywordflow">else</font>
00571 str[p] = <font class="charliteral">'$'</font>;
00572
00573 str[p+1] = <font class="charliteral">'\0'</font>;
00574 }
00575 }
00576 }
00577
00578 <font class="keywordflow">for</font> (; i < <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>; i+= gran)
00579 {
00580 strncat (str, <font class="stringliteral">" "</font>, 1024);
00581 }
00582 <font class="preprocessor">#ifdef NL_DEBUG</font>
00583 <font class="preprocessor"></font> strncat (str, <font class="stringliteral">"\n"</font>, 1024);
00584 <font class="preprocessor">#else</font>
00585 <font class="preprocessor"></font> strncat (str, <font class="stringliteral">"\r"</font>, 1024);
00586 <font class="preprocessor">#endif</font>
00587 <font class="preprocessor"></font> <a class="code" href="namespaceNLMISC.html#a11">DebugLog</a>->display (str);
00588 }
00589
<a name="l00590"></a><a class="code" href="classNLMISC_1_1CBufFIFO.html#c0">00590</a> <font class="keywordtype">bool</font> CBufFIFO::canFit (uint32 size)
00591 {
00592 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> == <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>)
00593 {
00594 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#a12">empty</a>())
00595 {
00596 <font class="comment">// is the buffer large enough?</font>
00597 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o1">_BufferSize</a> >= <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>)
00598 {
00599 <font class="comment">// reset the pointer</font>
00600 <font class="preprocessor">#if DEBUG_FIFO</font>
00601 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p reset tail and head"</font>, <font class="keyword">this</font>);
00602 <font class="preprocessor">#endif</font>
00603 <font class="preprocessor"></font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00604 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00605 }
00606 <font class="keywordflow">else</font>
00607 {
00608 <font class="comment">// buffer not big enough</font>
00609 <font class="preprocessor">#if DEBUG_FIFO</font>
00610 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p buffer full buffersize<size"</font>, <font class="keyword">this</font>);
00611 <font class="preprocessor">#endif</font>
00612 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">false</font>;
00613 }
00614 }
00615 <font class="keywordflow">else</font>
00616 {
00617 <font class="comment">// buffer full</font>
00618 <font class="preprocessor">#if DEBUG_FIFO</font>
00619 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p buffer full h=t"</font>, <font class="keyword">this</font>);
00620 <font class="preprocessor">#endif</font>
00621 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">false</font>;
00622 }
00623 }
00624 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> < <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>)
00625 {
00626 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a> + <a class="code" href="classNLMISC_1_1CBufFIFO.html#o1">_BufferSize</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> >= (sint32) <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>)
00627 {
00628 <font class="comment">// can fit after _Head</font>
00629 <font class="preprocessor">#if DEBUG_FIFO</font>
00630 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p fit after"</font>, <font class="keyword">this</font>);
00631 <font class="preprocessor">#endif</font>
00632 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">true</font>;
00633 }
00634 <font class="keywordflow">else</font> <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a> >= (sint32) <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>)
00635 {
00636 <font class="comment">// can fit at the beginning</font>
00637 <font class="preprocessor">#if DEBUG_FIFO</font>
00638 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p fit at beginning"</font>, <font class="keyword">this</font>);
00639 <font class="preprocessor">#endif</font>
00640 <font class="preprocessor"></font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#o5">_Rewinder</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a>;
00641 <font class="preprocessor">#if DEBUG_FIFO</font>
00642 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p set the rewinder"</font>, <font class="keyword">this</font>);
00643 <font class="preprocessor">#endif</font>
00644 <font class="preprocessor"></font> <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> = <a class="code" href="classNLMISC_1_1CBufFIFO.html#o0">_Buffer</a>;
00645 <font class="keywordflow">return</font> <font class="keyword">true</font>;
00646 }
00647 <font class="keywordflow">else</font>
00648 {
00649 <font class="comment">// can't fit</font>
00650 <font class="preprocessor">#if DEBUG_FIFO</font>
00651 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p no room t<h"</font>, <font class="keyword">this</font>);
00652 <font class="preprocessor">#endif</font>
00653 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">false</font>;
00654 }
00655 }
00656 <font class="keywordflow">else</font> <font class="comment">// the last case is : if (_Tail > _Head)</font>
00657 {
00658 <font class="keywordflow">if</font> (<a class="code" href="classNLMISC_1_1CBufFIFO.html#o4">_Tail</a> - <a class="code" href="classNLMISC_1_1CBufFIFO.html#o3">_Head</a> >= (sint32) <a class="code" href="classNLMISC_1_1CBufFIFO.html#a14">size</a>)
00659 {
00660 <font class="preprocessor">#if DEBUG_FIFO</font>
00661 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p fit t>h"</font>, <font class="keyword">this</font>);
00662 <font class="preprocessor">#endif</font>
00663 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">true</font>;
00664 }
00665 <font class="keywordflow">else</font>
00666 {
00667 <font class="preprocessor">#if DEBUG_FIFO</font>
00668 <font class="preprocessor"></font> <a class="code" href="debug_8h.html#a0">nldebug</a>(<font class="stringliteral">"%p no room t>h"</font>, <font class="keyword">this</font>);
00669 <font class="preprocessor">#endif</font>
00670 <font class="preprocessor"></font> <font class="keywordflow">return</font> <font class="keyword">false</font>;
00671 }
00672 }
00673 <a class="code" href="debug_8h.html#a12">nlstop</a>;
00674 }
00675
00676
00677 } <font class="comment">// NLMISC</font>
</pre></div>
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