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 <span id="projectnumber">0.122.0</span>
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<a href="ringbuffer_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> Copyright (C) 2000 Paul Davis</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> Copyright (C) 2003 Rohan Drape</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> </span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> it under the terms of the GNU Lesser General Public License as published by</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> the Free Software Foundation; either version 2.1 of the License, or</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> (at your option) any later version.</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> </span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> GNU Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> </span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> You should have received a copy of the GNU Lesser General Public License</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> along with this program; if not, write to the Free Software </span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"></span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#ifndef _RINGBUFFER_H</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#define _RINGBUFFER_H</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span><span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <sys/types.h></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__data__t.html"> 44</a></span> <span class="keyword">typedef</span> <span class="keyword">struct </span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> {</div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__data__t.html#aed40aa302461ab6121befd1b21813b1d"> 46</a></span>  <span class="keywordtype">char</span> *<a class="code" href="structjack__ringbuffer__data__t.html#aed40aa302461ab6121befd1b21813b1d">buf</a>;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__data__t.html#ab4e5b8f57904fd9f49261697584b2640"> 47</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="structjack__ringbuffer__data__t.html#ab4e5b8f57904fd9f49261697584b2640">len</a>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> } </div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <a class="code" href="structjack__ringbuffer__data__t.html">jack_ringbuffer_data_t</a> ;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__t.html"> 51</a></span> <span class="keyword">typedef</span> <span class="keyword">struct</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> {</div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__t.html#ac39622c7f150768b0428204ed58fe65c"> 53</a></span>  <span class="keywordtype">char</span> *<a class="code" href="structjack__ringbuffer__t.html#ac39622c7f150768b0428204ed58fe65c">buf</a>;</div>
<div class="line"><a name="l00054"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__t.html#a7ba69e5aa3fdde2f4e4421e50c10b737"> 54</a></span>  <span class="keyword">volatile</span> <span class="keywordtype">size_t</span> <a class="code" href="structjack__ringbuffer__t.html#a7ba69e5aa3fdde2f4e4421e50c10b737">write_ptr</a>;</div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__t.html#a0bb413093ec1e3c3e957ddaa42ddf512"> 55</a></span>  <span class="keyword">volatile</span> <span class="keywordtype">size_t</span> <a class="code" href="structjack__ringbuffer__t.html#a0bb413093ec1e3c3e957ddaa42ddf512">read_ptr</a>;</div>
<div class="line"><a name="l00056"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__t.html#ae0db038d5d6566e916f64166cfe60317"> 56</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="structjack__ringbuffer__t.html#ae0db038d5d6566e916f64166cfe60317">size</a>;</div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__t.html#aa782cb7bf8312c7a04180685820b5ddd"> 57</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="structjack__ringbuffer__t.html#aa782cb7bf8312c7a04180685820b5ddd">size_mask</a>;</div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="code" href="structjack__ringbuffer__t.html#ac33041ce67d9996804cba45d613018dc"> 58</a></span>  <span class="keywordtype">int</span> <a class="code" href="structjack__ringbuffer__t.html#ac33041ce67d9996804cba45d613018dc">mlocked</a>;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> } </div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> ;</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *<a class="code" href="ringbuffer_8h.html#a11f9045eb4b0561b26ec434c44e3c922">jack_ringbuffer_create</a>(<span class="keywordtype">size_t</span> sz);</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="keywordtype">void</span> <a class="code" href="ringbuffer_8h.html#aa82de39e73e06aa729e092710b83ef61">jack_ringbuffer_free</a>(<a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="keywordtype">void</span> <a class="code" href="ringbuffer_8h.html#aa21aaf8ff173ba0e89b35554f20d4ccb">jack_ringbuffer_get_read_vector</a>(<span class="keyword">const</span> <a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb,</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="structjack__ringbuffer__data__t.html">jack_ringbuffer_data_t</a> *vec);</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span> <span class="keywordtype">void</span> <a class="code" href="ringbuffer_8h.html#a1c44a50c99f43bb683d8721f14aefc7d">jack_ringbuffer_get_write_vector</a>(<span class="keyword">const</span> <a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb,</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <a class="code" href="structjack__ringbuffer__data__t.html">jack_ringbuffer_data_t</a> *vec);</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span> </div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keywordtype">size_t</span> <a class="code" href="ringbuffer_8h.html#a4b001e5844a116a1d51006e2716c73bb">jack_ringbuffer_read</a>(<a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb, <span class="keywordtype">char</span> *dest, <span class="keywordtype">size_t</span> cnt);</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="keywordtype">size_t</span> <a class="code" href="ringbuffer_8h.html#ad268f29e641b39bee8155e7e80ad4520">jack_ringbuffer_peek</a>(<a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb, <span class="keywordtype">char</span> *dest, <span class="keywordtype">size_t</span> cnt);</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> <span class="keywordtype">void</span> <a class="code" href="ringbuffer_8h.html#aa9cdd4b69ae338c6ce464a1de00ee71a">jack_ringbuffer_read_advance</a>(<a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb, <span class="keywordtype">size_t</span> cnt);</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span> <span class="keywordtype">size_t</span> <a class="code" href="ringbuffer_8h.html#a61e93fa7c9bfb6897dd2508d026d9317">jack_ringbuffer_read_space</a>(<span class="keyword">const</span> <a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb);</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="keywordtype">int</span> <a class="code" href="ringbuffer_8h.html#aeb059ff23c65389d48ebbe948f05c2b2">jack_ringbuffer_mlock</a>(<a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb);</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span> <span class="keywordtype">void</span> <a class="code" href="ringbuffer_8h.html#a40244c7eee331822cd99132a14e76896">jack_ringbuffer_reset</a>(<a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb);</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span> <span class="keywordtype">size_t</span> <a class="code" href="ringbuffer_8h.html#a6d2fc75510e4df62f5b3dd249047b132">jack_ringbuffer_write</a>(<a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb, <span class="keyword">const</span> <span class="keywordtype">char</span> *src,</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <span class="keywordtype">size_t</span> cnt);</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span> <span class="keywordtype">void</span> <a class="code" href="ringbuffer_8h.html#a7255e067e485770d8127d821b6d7e9ec">jack_ringbuffer_write_advance</a>(<a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb, <span class="keywordtype">size_t</span> cnt);</div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span> </div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> <span class="keywordtype">size_t</span> <a class="code" href="ringbuffer_8h.html#a07a5f6086380300b7b2ccfd7cf9c2ef6">jack_ringbuffer_write_space</a>(<span class="keyword">const</span> <a class="code" href="structjack__ringbuffer__t.html">jack_ringbuffer_t</a> *rb);</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> </div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span> </div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span> <span class="preprocessor"></span>}</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span> <span class="preprocessor"></span></div>
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