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<h1>gc_jd_stack.h</h1>  </div>
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<a href="gc__jd__stack_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c++ -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/*</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright 2007 Free Software Foundation, Inc.</span>
<a name="l00004"></a>00004 <span class="comment"> * </span>
<a name="l00005"></a>00005 <span class="comment"> * This file is part of GNU Radio</span>
<a name="l00006"></a>00006 <span class="comment"> * </span>
<a name="l00007"></a>00007 <span class="comment"> * GNU Radio is free software; you can redistribute it and/or modify</span>
<a name="l00008"></a>00008 <span class="comment"> * it under the terms of the GNU General Public License as published by</span>
<a name="l00009"></a>00009 <span class="comment"> * the Free Software Foundation; either version 3, or (at your option)</span>
<a name="l00010"></a>00010 <span class="comment"> * any later version.</span>
<a name="l00011"></a>00011 <span class="comment"> * </span>
<a name="l00012"></a>00012 <span class="comment"> * GNU Radio is distributed in the hope that it will be useful,</span>
<a name="l00013"></a>00013 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00014"></a>00014 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the</span>
<a name="l00015"></a>00015 <span class="comment"> * GNU General Public License for more details.</span>
<a name="l00016"></a>00016 <span class="comment"> * </span>
<a name="l00017"></a>00017 <span class="comment"> * You should have received a copy of the GNU General Public License along</span>
<a name="l00018"></a>00018 <span class="comment"> * with this program; if not, write to the Free Software Foundation, Inc.,</span>
<a name="l00019"></a>00019 <span class="comment"> * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.</span>
<a name="l00020"></a>00020 <span class="comment"> */</span>
<a name="l00021"></a>00021 
<a name="l00022"></a>00022 <span class="preprocessor">#ifndef INCLUDED_GCELL_GC_JD_STACK_H</span>
<a name="l00023"></a>00023 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_GCELL_GC_JD_STACK_H</span>
<a name="l00024"></a>00024 <span class="preprocessor"></span>
<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;gcell/gc_types.h&gt;</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;gcell/gc_job_desc.h&gt;</span>
<a name="l00027"></a>00027 
<a name="l00028"></a>00028 <a class="code" href="gc__cdefs_8h.html#a04178ef457e19e868dc8ee7e9c368244">__GC_BEGIN_DECLS</a>
<a name="l00029"></a>00029 <span class="comment"></span>
<a name="l00030"></a>00030 <span class="comment">/*!</span>
<a name="l00031"></a>00031 <span class="comment"> * \brief Lock free stack for job descriptors (used for free list)</span>
<a name="l00032"></a>00032 <span class="comment"> *</span>
<a name="l00033"></a>00033 <span class="comment"> * This is aligned to a cache line, and fills the cache line,</span>
<a name="l00034"></a>00034 <span class="comment"> * to avoid inadvertently losing reservations created with</span>
<a name="l00035"></a>00035 <span class="comment"> * the load-and-reserve instructions.</span>
<a name="l00036"></a>00036 <span class="comment"> */</span>
<a name="l00037"></a>00037 
<a name="l00038"></a><a class="code" href="structgc__jd__stack.html">00038</a> <span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code" href="structgc__jd__stack.html" title="Lock free stack for job descriptors (used for free list)">gc_jd_stack</a>
<a name="l00039"></a>00039 {
<a name="l00040"></a><a class="code" href="structgc__jd__stack.html#ad7be00d64672a551c03757afdd6a4a57">00040</a>   <a class="code" href="gc__types_8h.html#affc43a8e5ab8551e7361f8ce8521c34d" title="64-bit integer type representing an effective address (EA)">gc_eaddr_t</a>    <a class="code" href="structgc__jd__stack.html#ad7be00d64672a551c03757afdd6a4a57">top</a>;
<a name="l00041"></a>00041 
<a name="l00042"></a>00042   <span class="comment">// pad out to a full cache line</span>
<a name="l00043"></a><a class="code" href="structgc__jd__stack.html#aa5a711edc2185e5b503e9ef45c9af849">00043</a>   uint8_t       <a class="code" href="structgc__jd__stack.html#aa5a711edc2185e5b503e9ef45c9af849">_pad</a>[128 - <span class="keyword">sizeof</span>(<a class="code" href="gc__types_8h.html#affc43a8e5ab8551e7361f8ce8521c34d" title="64-bit integer type representing an effective address (EA)">gc_eaddr_t</a>)];
<a name="l00044"></a>00044 } <a class="code" href="compiler_8h.html#af01a07803c08d8acefc05442a16416cb">_AL128</a> <a class="code" href="gc__jd__stack_8h.html#a9360c9944831212edca9b84fca596b0b" title="Lock free stack for job descriptors (used for free list)">gc_jd_stack_t</a>;
<a name="l00045"></a>00045 
<a name="l00046"></a>00046 <span class="comment"></span>
<a name="l00047"></a>00047 <span class="comment">/*!</span>
<a name="l00048"></a>00048 <span class="comment"> * \brief Initialize the stack to empty.</span>
<a name="l00049"></a>00049 <span class="comment"> */</span>
<a name="l00050"></a>00050 <span class="keywordtype">void</span> 
<a name="l00051"></a>00051 <a class="code" href="gc__jd__stack_8h.html#a941e8e97d39bb6fd5cadcbdc9a5df498" title="Initialize the stack to empty.">gc_jd_stack_init</a>(<a class="code" href="gc__jd__stack_8h.html#a9360c9944831212edca9b84fca596b0b" title="Lock free stack for job descriptors (used for free list)">gc_jd_stack_t</a> *stack);
<a name="l00052"></a>00052   
<a name="l00053"></a>00053 <span class="comment"></span>
<a name="l00054"></a>00054 <span class="comment">/*!</span>
<a name="l00055"></a>00055 <span class="comment"> * \brief Add \p item to the top of \p stack.</span>
<a name="l00056"></a>00056 <span class="comment"> */</span>
<a name="l00057"></a>00057 <span class="keywordtype">void</span> 
<a name="l00058"></a>00058 <a class="code" href="gc__jd__stack_8h.html#a2869ce32fd19fd665081a3f00800724c" title="Add item to the top of stack.">gc_jd_stack_push</a>(<a class="code" href="gc__jd__stack_8h.html#a9360c9944831212edca9b84fca596b0b" title="Lock free stack for job descriptors (used for free list)">gc_jd_stack_t</a> *stack, <a class="code" href="structgc__job__desc.html" title="&amp;quot;job description&amp;quot; that is DMA&amp;#39;d to/from the SPE.">gc_job_desc_t</a> *item);
<a name="l00059"></a>00059 
<a name="l00060"></a>00060 <span class="comment"></span>
<a name="l00061"></a>00061 <span class="comment">/*!</span>
<a name="l00062"></a>00062 <span class="comment"> * \brief pop and return top item on stack, or 0 if stack is empty</span>
<a name="l00063"></a>00063 <span class="comment"> */</span>
<a name="l00064"></a>00064 <a class="code" href="structgc__job__desc.html" title="&amp;quot;job description&amp;quot; that is DMA&amp;#39;d to/from the SPE.">gc_job_desc_t</a> *
<a name="l00065"></a>00065 <a class="code" href="gc__jd__stack_8h.html#a101083bab04d0d906a3347b901081c7f" title="pop and return top item on stack, or 0 if stack is empty">gc_jd_stack_pop</a>(<a class="code" href="gc__jd__stack_8h.html#a9360c9944831212edca9b84fca596b0b" title="Lock free stack for job descriptors (used for free list)">gc_jd_stack_t</a> *stack);
<a name="l00066"></a>00066 
<a name="l00067"></a>00067 <a class="code" href="gc__cdefs_8h.html#a9bf3afc2f6e1c1d8ebe9b237b7ab7b05">__GC_END_DECLS</a>
<a name="l00068"></a>00068 
<a name="l00069"></a>00069 
<a name="l00070"></a>00070 <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_GCELL_GC_JD_STACK_H */</span>
</pre></div></div>
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