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doxygen="_cgi:http://www.nevrax.org/cgi-bin/nel-search.cgi" href="http://www.nevrax.org/cgi-bin/nel-search.cgi">Search</a> </center> +<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> + +<!-- footer --> +<BR><FONT Size=+5> </FONT> +</TD> +<TD WIDTH=15><IMG SRC=http://www.nevrax.org/inc/img/pixel.gif WIDTH=15 HEIGHT=15 BORDER=0 ALT=""></TD> +</TR> +</TABLE> +</BODY> +</HTML> |