docs/api-2.1/stack_8h_source.html

Wed, 28 Jun 2023 20:07:52 +0200

author
Mike Becker <universe@uap-core.de>
date
Wed, 28 Jun 2023 20:07:52 +0200
changeset 727
d92a59f5d261
parent 390
d345541018fa
permissions
-rw-r--r--

improve mempool implementation

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<a href="stack_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>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * Redistribution and use in source and binary forms, with or without</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * modification, are permitted provided that the following conditions are met:</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *   1. Redistributions of source code must retain the above copyright</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *      notice, this list of conditions and the following disclaimer.</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> *   2. Redistributions in binary form must reproduce the above copyright</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> *      notice, this list of conditions and the following disclaimer in the</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> *      documentation and/or other materials provided with the distribution.</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> *</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot;</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment"> * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"> * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment"> * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment"> * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"> * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment"> * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment"> * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment"> * POSSIBILITY OF SUCH DAMAGE.</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment"> */</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#ifndef UCX_STACK_H</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;<span class="preprocessor">#define UCX_STACK_H</span></div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="ucx_8h.html">ucx.h</a>&quot;</span></div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="allocator_8h.html">allocator.h</a>&quot;</span></div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="preprocessor">#ifdef  __cplusplus</span></div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">extern</span> <span class="stringliteral">&quot;C&quot;</span> {</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;</div><div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structUcxStack.html">   52</a></span>&#160;<span class="keyword">typedef</span> <span class="keyword">struct </span>{</div><div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="structUcxStack.html#a33cda4f6890ac56ab31701598bc1ae10">   54</a></span>&#160; 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   </div><div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="structUcxStack.html#af0ff6f58edce469f17683013b86ade27">   63</a></span>&#160;    <span class="keywordtype">char</span> *<a class="code" href="structUcxStack.html#af0ff6f58edce469f17683013b86ade27">top</a>;</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;} <a class="code" href="structUcxStack.html">UcxStack</a>;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;</div><div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="structucx__stack__metadata.html">   69</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structucx__stack__metadata.html">ucx_stack_metadata</a> {</div><div class="line"><a name="l00073"></a><span class="lineno"><a class="line" href="structucx__stack__metadata.html#ad46d2e8e5b0acf05f2def41d451c5579">   73</a></span>&#160;    <span class="keywordtype">char</span> *<a class="code" href="structucx__stack__metadata.html#ad46d2e8e5b0acf05f2def41d451c5579">prev</a>;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160; 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((struct ucx_stack_metadata*)\</span></div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;<span class="preprocessor">                                  (stack)-&gt;top - 1)-&gt;size : 0)</span></div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;</div><div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="stack_8h.html#a506b82374734ec476d086ddfb561174d">  188</a></span>&#160;<span class="preprocessor">#define ucx_stack_pop(stack, dest) ucx_stack_popn(stack, dest, (size_t)-1)</span></div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="keywordtype">void</span> <a class="code" href="stack_8h.html#a07ea48f28eab474dcfefbb86fa66ef81">ucx_stack_popn</a>(<a class="code" href="structUcxStack.html">UcxStack</a> *stack, <span class="keywordtype">void</span> *dest, <span class="keywordtype">size_t</span> n);</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;<span class="keywordtype">size_t</span> <a class="code" href="stack_8h.html#a53cd2c7743dc8ad9cbd35ade0b4873e7">ucx_stack_avail</a>(<a class="code" href="structUcxStack.html">UcxStack</a> *stack);</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;</div><div class="line"><a name="l00219"></a><span class="lineno"><a class="line" href="stack_8h.html#a4f7239dbd6c032c56812e370b71c1985">  219</a></span>&#160;<span class="preprocessor">#define ucx_stack_empty(stack) (!(stack)-&gt;top)</span></div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;</div><div class="line"><a name="l00231"></a><span class="lineno"><a class="line" href="stack_8h.html#a3b761343c6491222604341ebfa443226">  231</a></span>&#160;<span class="preprocessor">#define ucx_stack_dim(size, elems) (size+sizeof(struct ucx_stack_metadata) * \</span></div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;<span class="preprocessor">                                    (elems + 1))</span></div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;<span class="preprocessor">#ifdef  __cplusplus</span></div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;}</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;<span class="preprocessor">#endif  </span><span class="comment">/* UCX_STACK_H */</span><span class="preprocessor"></span></div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;</div><div class="ttc" id="structUcxStack_html_a4df86b1917bfc3bbf760220870638143"><div class="ttname"><a href="structUcxStack.html#a4df86b1917bfc3bbf760220870638143">UcxStack::size</a></div><div class="ttdeci">size_t size</div><div class="ttdoc">Stack size. </div><div class="ttdef"><b>Definition:</b> stack.h:57</div></div>
<div class="ttc" id="structUcxStack_html"><div class="ttname"><a href="structUcxStack.html">UcxStack</a></div><div class="ttdoc">UCX stack structure. </div><div class="ttdef"><b>Definition:</b> stack.h:52</div></div>
<div class="ttc" id="stack_8h_html_aabd55c14a3866b3782ba324f4d8b4c41"><div class="ttname"><a href="stack_8h.html#aabd55c14a3866b3782ba324f4d8b4c41">ucx_stack_free</a></div><div class="ttdeci">void ucx_stack_free(UcxStack *stack, void *ptr)</div><div class="ttdoc">Frees memory on the stack. </div><div class="ttdef"><b>Definition:</b> stack.c:106</div></div>
<div class="ttc" id="ucx_8h_html"><div class="ttname"><a href="ucx_8h.html">ucx.h</a></div><div class="ttdoc">Main UCX Header providing most common definitions. </div></div>
<div class="ttc" id="stack_8h_html_af865b416802140f6b6e8ab3626d7d1ac"><div class="ttname"><a href="stack_8h.html#af865b416802140f6b6e8ab3626d7d1ac">ucx_stack_malloc</a></div><div class="ttdeci">void * ucx_stack_malloc(UcxStack *stack, size_t n)</div><div class="ttdoc">Allocates stack memory. </div><div class="ttdef"><b>Definition:</b> stack.c:53</div></div>
<div class="ttc" id="stack_8h_html_af85e6f77a8341beb6188f9ae1a8e9f92"><div class="ttname"><a href="stack_8h.html#af85e6f77a8341beb6188f9ae1a8e9f92">ucx_stack_push</a></div><div class="ttdeci">void * ucx_stack_push(UcxStack *stack, size_t n, const void *data)</div><div class="ttdoc">Allocates memory with ucx_stack_malloc() and copies the specified data if the allocation was successf...</div><div class="ttdef"><b>Definition:</b> stack.c:148</div></div>
<div class="ttc" id="structucx__stack__metadata_html"><div class="ttname"><a href="structucx__stack__metadata.html">ucx_stack_metadata</a></div><div class="ttdoc">Metadata for each UCX stack element. </div><div class="ttdef"><b>Definition:</b> stack.h:69</div></div>
<div class="ttc" id="stack_8h_html_a0c678f96f6fabab49b2b034a1fe91c3a"><div class="ttname"><a href="stack_8h.html#a0c678f96f6fabab49b2b034a1fe91c3a">ucx_stack_realloc</a></div><div class="ttdeci">void * ucx_stack_realloc(UcxStack *stack, void *ptr, size_t n)</div><div class="ttdoc">Reallocates memory on the stack. </div><div class="ttdef"><b>Definition:</b> stack.c:79</div></div>
<div class="ttc" id="structucx__stack__metadata_html_ad46d2e8e5b0acf05f2def41d451c5579"><div class="ttname"><a href="structucx__stack__metadata.html#ad46d2e8e5b0acf05f2def41d451c5579">ucx_stack_metadata::prev</a></div><div class="ttdeci">char * prev</div><div class="ttdoc">Location of the previous element (NULL if this is the first) </div><div class="ttdef"><b>Definition:</b> stack.h:73</div></div>
<div class="ttc" id="stack_8h_html_a53cd2c7743dc8ad9cbd35ade0b4873e7"><div class="ttname"><a href="stack_8h.html#a53cd2c7743dc8ad9cbd35ade0b4873e7">ucx_stack_avail</a></div><div class="ttdeci">size_t ucx_stack_avail(UcxStack *stack)</div><div class="ttdoc">Returns the remaining available memory on the specified stack. </div><div class="ttdef"><b>Definition:</b> stack.c:135</div></div>
<div class="ttc" id="structUcxAllocator_html"><div class="ttname"><a href="structUcxAllocator.html">UcxAllocator</a></div><div class="ttdoc">UCX allocator data structure containing memory management functions. </div><div class="ttdef"><b>Definition:</b> allocator.h:88</div></div>
<div class="ttc" id="structUcxStack_html_af64d528744bf3a47fec87d2e45d2992f"><div class="ttname"><a href="structUcxStack.html#af64d528744bf3a47fec87d2e45d2992f">UcxStack::space</a></div><div class="ttdeci">char * space</div><div class="ttdoc">Pointer to the bottom of the stack. </div><div class="ttdef"><b>Definition:</b> stack.h:60</div></div>
<div class="ttc" id="stack_8h_html_a07ea48f28eab474dcfefbb86fa66ef81"><div class="ttname"><a href="stack_8h.html#a07ea48f28eab474dcfefbb86fa66ef81">ucx_stack_popn</a></div><div class="ttdeci">void ucx_stack_popn(UcxStack *stack, void *dest, size_t n)</div><div class="ttdoc">Removes the top most element from the stack and copies the content to  dest. </div><div class="ttdef"><b>Definition:</b> stack.c:118</div></div>
<div class="ttc" id="allocator_8h_html"><div class="ttname"><a href="allocator_8h.html">allocator.h</a></div><div class="ttdoc">Allocator for custom memory management. </div></div>
<div class="ttc" id="stack_8h_html_abaef685df4e7ef95cd7218984a0618fe"><div class="ttname"><a href="stack_8h.html#abaef685df4e7ef95cd7218984a0618fe">ucx_stack_init</a></div><div class="ttdeci">void ucx_stack_init(UcxStack *stack, char *space, size_t size)</div><div class="ttdoc">Initializes UcxStack structure with memory. </div><div class="ttdef"><b>Definition:</b> stack.c:41</div></div>
<div class="ttc" id="structucx__stack__metadata_html_ae2a2848b721cfa44a7e963484c5e4b28"><div class="ttname"><a href="structucx__stack__metadata.html#ae2a2848b721cfa44a7e963484c5e4b28">ucx_stack_metadata::size</a></div><div class="ttdeci">size_t size</div><div class="ttdoc">Size of this element. </div><div class="ttdef"><b>Definition:</b> stack.h:76</div></div>
<div class="ttc" id="stack_8h_html_a7bb138979191bba138e76ea37488fae2"><div class="ttname"><a href="stack_8h.html#a7bb138979191bba138e76ea37488fae2">ucx_stack_pusharr</a></div><div class="ttdeci">void * ucx_stack_pusharr(UcxStack *stack, size_t nelem, size_t elsize, const void *data)</div><div class="ttdoc">Allocates memory with ucx_stack_calloc() and copies the specified data if the allocation was successf...</div><div class="ttdef"><b>Definition:</b> stack.c:156</div></div>
<div class="ttc" id="stack_8h_html_afdc467524b5e19a9a777c6bc03e17174"><div class="ttname"><a href="stack_8h.html#afdc467524b5e19a9a777c6bc03e17174">ucx_stack_calloc</a></div><div class="ttdeci">void * ucx_stack_calloc(UcxStack *stack, size_t nelem, size_t elsize)</div><div class="ttdoc">Allocates an array of stack memory. </div><div class="ttdef"><b>Definition:</b> stack.c:73</div></div>
<div class="ttc" id="structUcxStack_html_af0ff6f58edce469f17683013b86ade27"><div class="ttname"><a href="structUcxStack.html#af0ff6f58edce469f17683013b86ade27">UcxStack::top</a></div><div class="ttdeci">char * top</div><div class="ttdoc">Pointer to the top of the stack. </div><div class="ttdef"><b>Definition:</b> stack.h:63</div></div>
<div class="ttc" id="structUcxStack_html_a33cda4f6890ac56ab31701598bc1ae10"><div class="ttname"><a href="structUcxStack.html#a33cda4f6890ac56ab31701598bc1ae10">UcxStack::allocator</a></div><div class="ttdeci">UcxAllocator allocator</div><div class="ttdoc">UcxAllocator based on this stack. </div><div class="ttdef"><b>Definition:</b> stack.h:54</div></div>
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