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docs/api-2.1/allocator_8h.html

Fri, 20 Dec 2024 13:13:38 +0100

author
Mike Becker <universe@uap-core.de>
date
Fri, 20 Dec 2024 13:13:38 +0100
changeset 1029
c065d196a2c8
parent 390
d345541018fa
permissions
-rw-r--r--

add advice to set the size of a buffer initialized with existing data

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<p>Allocator for custom memory management.  
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &quot;<a class="el" href="ucx_8h_source.html">ucx.h</a>&quot;</code><br />
</div>
<p><a href="allocator_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structUcxAllocator.html">UcxAllocator</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">UCX allocator data structure containing memory management functions.  <a href="structUcxAllocator.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:ae1bc218fea8a35f4a3706f0beefcfb19"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#ae1bc218fea8a35f4a3706f0beefcfb19">almalloc</a>(allocator,  n)&#160;&#160;&#160;((allocator)-&gt;malloc((allocator)-&gt;pool, n))</td></tr>
<tr class="memdesc:ae1bc218fea8a35f4a3706f0beefcfb19"><td class="mdescLeft">&#160;</td><td class="mdescRight">Shorthand for calling an allocators malloc function.  <a href="#ae1bc218fea8a35f4a3706f0beefcfb19">More...</a><br /></td></tr>
<tr class="separator:ae1bc218fea8a35f4a3706f0beefcfb19"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8d71470816f88f78cb9a9686c57e1b10"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a8d71470816f88f78cb9a9686c57e1b10">alcalloc</a>(allocator,  n,  size)&#160;&#160;&#160;((allocator)-&gt;calloc((allocator)-&gt;pool, n, size))</td></tr>
<tr class="memdesc:a8d71470816f88f78cb9a9686c57e1b10"><td class="mdescLeft">&#160;</td><td class="mdescRight">Shorthand for calling an allocators calloc function.  <a href="#a8d71470816f88f78cb9a9686c57e1b10">More...</a><br /></td></tr>
<tr class="separator:a8d71470816f88f78cb9a9686c57e1b10"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a029ee5c9bcbb3f873571553f788c5820"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a029ee5c9bcbb3f873571553f788c5820">alrealloc</a>(allocator,  ptr,  n)&#160;&#160;&#160;((allocator)-&gt;realloc((allocator)-&gt;pool, ptr, n))</td></tr>
<tr class="memdesc:a029ee5c9bcbb3f873571553f788c5820"><td class="mdescLeft">&#160;</td><td class="mdescRight">Shorthand for calling an allocators realloc function.  <a href="#a029ee5c9bcbb3f873571553f788c5820">More...</a><br /></td></tr>
<tr class="separator:a029ee5c9bcbb3f873571553f788c5820"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acd775785b54e97dc2b33a432c12c8fb2"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#acd775785b54e97dc2b33a432c12c8fb2">alfree</a>(allocator,  ptr)&#160;&#160;&#160;((allocator)-&gt;free((allocator)-&gt;pool, ptr))</td></tr>
<tr class="memdesc:acd775785b54e97dc2b33a432c12c8fb2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Shorthand for calling an allocators free function.  <a href="#acd775785b54e97dc2b33a432c12c8fb2">More...</a><br /></td></tr>
<tr class="separator:acd775785b54e97dc2b33a432c12c8fb2"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a1283a8f875f90a7af3aba5e031fc2e3f"><td class="memItemLeft" align="right" valign="top">#define&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a1283a8f875f90a7af3aba5e031fc2e3f">UCX_ALLOCATOR_DEFAULT</a></td></tr>
<tr class="memdesc:a1283a8f875f90a7af3aba5e031fc2e3f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Convenient macro for a default allocator <code>struct</code> definition.  <a href="#a1283a8f875f90a7af3aba5e031fc2e3f">More...</a><br /></td></tr>
<tr class="separator:a1283a8f875f90a7af3aba5e031fc2e3f"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:a29f0f6a23a70db3b60635cd6dc384473"><td class="memItemLeft" align="right" valign="top">typedef void *(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a29f0f6a23a70db3b60635cd6dc384473">ucx_allocator_malloc</a>) (void *pool, size_t n)</td></tr>
<tr class="memdesc:a29f0f6a23a70db3b60635cd6dc384473"><td class="mdescLeft">&#160;</td><td class="mdescRight">A function pointer to the allocators <code>malloc()</code> function.  <a href="#a29f0f6a23a70db3b60635cd6dc384473">More...</a><br /></td></tr>
<tr class="separator:a29f0f6a23a70db3b60635cd6dc384473"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a2c0aba4221c1ac6801f03ed799f15b12"><td class="memItemLeft" align="right" valign="top">typedef void *(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a2c0aba4221c1ac6801f03ed799f15b12">ucx_allocator_calloc</a>) (void *pool, size_t n, size_t size)</td></tr>
<tr class="memdesc:a2c0aba4221c1ac6801f03ed799f15b12"><td class="mdescLeft">&#160;</td><td class="mdescRight">A function pointer to the allocators <code>calloc()</code> function.  <a href="#a2c0aba4221c1ac6801f03ed799f15b12">More...</a><br /></td></tr>
<tr class="separator:a2c0aba4221c1ac6801f03ed799f15b12"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a6d7cf038a806e327c5da37321d04e426"><td class="memItemLeft" align="right" valign="top">typedef void *(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a6d7cf038a806e327c5da37321d04e426">ucx_allocator_realloc</a>) (void *pool, void *data, size_t n)</td></tr>
<tr class="memdesc:a6d7cf038a806e327c5da37321d04e426"><td class="mdescLeft">&#160;</td><td class="mdescRight">A function pointer to the allocators <code>realloc()</code> function.  <a href="#a6d7cf038a806e327c5da37321d04e426">More...</a><br /></td></tr>
<tr class="separator:a6d7cf038a806e327c5da37321d04e426"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:aaf2387ddaddd8ab4b267e6b00e5d6f7e"><td class="memItemLeft" align="right" valign="top">typedef void(*&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#aaf2387ddaddd8ab4b267e6b00e5d6f7e">ucx_allocator_free</a>) (void *pool, void *data)</td></tr>
<tr class="memdesc:aaf2387ddaddd8ab4b267e6b00e5d6f7e"><td class="mdescLeft">&#160;</td><td class="mdescRight">A function pointer to the allocators <code>free()</code> function.  <a href="#aaf2387ddaddd8ab4b267e6b00e5d6f7e">More...</a><br /></td></tr>
<tr class="separator:aaf2387ddaddd8ab4b267e6b00e5d6f7e"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a98d2f1b341118b7a0e341fda5d8b2ebf"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structUcxAllocator.html">UcxAllocator</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a98d2f1b341118b7a0e341fda5d8b2ebf">ucx_default_allocator</a> ()</td></tr>
<tr class="memdesc:a98d2f1b341118b7a0e341fda5d8b2ebf"><td class="mdescLeft">&#160;</td><td class="mdescRight">Returns a pointer to the default allocator.  <a href="#a98d2f1b341118b7a0e341fda5d8b2ebf">More...</a><br /></td></tr>
<tr class="separator:a98d2f1b341118b7a0e341fda5d8b2ebf"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a96403ebf3d2312d95f2fe7627a1cdbc0"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a96403ebf3d2312d95f2fe7627a1cdbc0">ucx_default_malloc</a> (void *ignore, size_t n)</td></tr>
<tr class="memdesc:a96403ebf3d2312d95f2fe7627a1cdbc0"><td class="mdescLeft">&#160;</td><td class="mdescRight">A wrapper for the standard libc <code>malloc()</code> function.  <a href="#a96403ebf3d2312d95f2fe7627a1cdbc0">More...</a><br /></td></tr>
<tr class="separator:a96403ebf3d2312d95f2fe7627a1cdbc0"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a3a0bfdd13d887012309c459b339f338f"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a3a0bfdd13d887012309c459b339f338f">ucx_default_calloc</a> (void *ignore, size_t n, size_t size)</td></tr>
<tr class="memdesc:a3a0bfdd13d887012309c459b339f338f"><td class="mdescLeft">&#160;</td><td class="mdescRight">A wrapper for the standard libc <code>calloc()</code> function.  <a href="#a3a0bfdd13d887012309c459b339f338f">More...</a><br /></td></tr>
<tr class="separator:a3a0bfdd13d887012309c459b339f338f"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a47cfc8af626a86fcb93a2b14b90498ed"><td class="memItemLeft" align="right" valign="top">void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a47cfc8af626a86fcb93a2b14b90498ed">ucx_default_realloc</a> (void *ignore, void *data, size_t n)</td></tr>
<tr class="memdesc:a47cfc8af626a86fcb93a2b14b90498ed"><td class="mdescLeft">&#160;</td><td class="mdescRight">A wrapper for the standard libc <code>realloc()</code> function.  <a href="#a47cfc8af626a86fcb93a2b14b90498ed">More...</a><br /></td></tr>
<tr class="separator:a47cfc8af626a86fcb93a2b14b90498ed"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a646d83aaaadfe33ae414c0fad8bfc52a"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="allocator_8h.html#a646d83aaaadfe33ae414c0fad8bfc52a">ucx_default_free</a> (void *ignore, void *data)</td></tr>
<tr class="memdesc:a646d83aaaadfe33ae414c0fad8bfc52a"><td class="mdescLeft">&#160;</td><td class="mdescRight">A wrapper for the standard libc <code>free()</code> function.  <a href="#a646d83aaaadfe33ae414c0fad8bfc52a">More...</a><br /></td></tr>
<tr class="separator:a646d83aaaadfe33ae414c0fad8bfc52a"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Allocator for custom memory management. </p>
<p>A UCX allocator consists of a pointer to the memory area / pool and four function pointers to memory management functions operating on this memory area / pool. These functions shall behave equivalent to the standard libc functions <code>malloc(), calloc(), realloc()</code> and <code>free()</code>.</p>
<p>The signature of the memory management functions is based on the signature of the respective libc function but each of them takes the pointer to the memory area / pool as first argument.</p>
<p>As the pointer to the memory area / pool can be arbitrarily chosen, any data can be provided to the memory management functions. A <a class="el" href="structUcxMempool.html" title="UCX mempool structure. ">UcxMempool</a> is just one example.</p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="mempool_8h.html" title="Memory pool implementation. ">mempool.h</a> </dd>
<dd>
<a class="el" href="structUcxMap.html" title="Structure for the UCX map. ">UcxMap</a></dd></dl>
<dl class="section author"><dt>Author</dt><dd>Mike Becker </dd>
<dd>
Olaf Wintermann </dd></dl>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a8d71470816f88f78cb9a9686c57e1b10"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8d71470816f88f78cb9a9686c57e1b10">&#9670;&nbsp;</a></span>alcalloc</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define alcalloc</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">allocator, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">n, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">size&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td>&#160;&#160;&#160;((allocator)-&gt;calloc((allocator)-&gt;pool, n, size))</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Shorthand for calling an allocators calloc function. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">allocator</td><td>the allocator to use </td></tr>
    <tr><td class="paramname">n</td><td>the count of elements the space should be allocated for </td></tr>
    <tr><td class="paramname">size</td><td>the size of each element </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>a pointer to the allocated memory area </dd></dl>

</div>
</div>
<a id="acd775785b54e97dc2b33a432c12c8fb2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acd775785b54e97dc2b33a432c12c8fb2">&#9670;&nbsp;</a></span>alfree</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define alfree</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">allocator, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">ptr&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td>&#160;&#160;&#160;((allocator)-&gt;free((allocator)-&gt;pool, ptr))</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Shorthand for calling an allocators free function. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">allocator</td><td>the allocator to use </td></tr>
    <tr><td class="paramname">ptr</td><td>the pointer to the memory area that shall be freed </td></tr>
  </table>
  </dd>
</dl>

</div>
</div>
<a id="ae1bc218fea8a35f4a3706f0beefcfb19"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae1bc218fea8a35f4a3706f0beefcfb19">&#9670;&nbsp;</a></span>almalloc</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define almalloc</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">allocator, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">n&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td>&#160;&#160;&#160;((allocator)-&gt;malloc((allocator)-&gt;pool, n))</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Shorthand for calling an allocators malloc function. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">allocator</td><td>the allocator to use </td></tr>
    <tr><td class="paramname">n</td><td>size of space to allocate </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>a pointer to the allocated memory area </dd></dl>

</div>
</div>
<a id="a029ee5c9bcbb3f873571553f788c5820"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a029ee5c9bcbb3f873571553f788c5820">&#9670;&nbsp;</a></span>alrealloc</h2>

<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">#define alrealloc</td>
          <td>(</td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">allocator, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">ptr, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">&#160;</td>
          <td class="paramname">n&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td>&#160;&#160;&#160;((allocator)-&gt;realloc((allocator)-&gt;pool, ptr, n))</td>
        </tr>
      </table>
</div><div class="memdoc">

<p>Shorthand for calling an allocators realloc function. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">allocator</td><td>the allocator to use </td></tr>
    <tr><td class="paramname">ptr</td><td>the pointer to the memory area that shall be reallocated </td></tr>
    <tr><td class="paramname">n</td><td>the new size of the allocated memory area </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>a pointer to the reallocated memory area </dd></dl>

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<a id="a1283a8f875f90a7af3aba5e031fc2e3f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1283a8f875f90a7af3aba5e031fc2e3f">&#9670;&nbsp;</a></span>UCX_ALLOCATOR_DEFAULT</h2>

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          <td class="memname">#define UCX_ALLOCATOR_DEFAULT</td>
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<b>Value:</b><div class="fragment"><div class="line">{NULL, \</div><div class="line">        ucx_default_malloc, <a class="code" href="allocator_8h.html#a3a0bfdd13d887012309c459b339f338f">ucx_default_calloc</a>, <a class="code" href="allocator_8h.html#a47cfc8af626a86fcb93a2b14b90498ed">ucx_default_realloc</a>, \</div><div class="line">        ucx_default_free }</div><div class="ttc" id="allocator_8h_html_a3a0bfdd13d887012309c459b339f338f"><div class="ttname"><a href="allocator_8h.html#a3a0bfdd13d887012309c459b339f338f">ucx_default_calloc</a></div><div class="ttdeci">void * ucx_default_calloc(void *ignore, size_t n, size_t size)</div><div class="ttdoc">A wrapper for the standard libc calloc() function. </div><div class="ttdef"><b>Definition:</b> allocator.c:50</div></div>
<div class="ttc" id="allocator_8h_html_a47cfc8af626a86fcb93a2b14b90498ed"><div class="ttname"><a href="allocator_8h.html#a47cfc8af626a86fcb93a2b14b90498ed">ucx_default_realloc</a></div><div class="ttdeci">void * ucx_default_realloc(void *ignore, void *data, size_t n)</div><div class="ttdoc">A wrapper for the standard libc realloc() function. </div><div class="ttdef"><b>Definition:</b> allocator.c:54</div></div>
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<p>Convenient macro for a default allocator <code>struct</code> definition. </p>

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<h2 class="groupheader">Typedef Documentation</h2>
<a id="a2c0aba4221c1ac6801f03ed799f15b12"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2c0aba4221c1ac6801f03ed799f15b12">&#9670;&nbsp;</a></span>ucx_allocator_calloc</h2>

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          <td class="memname">typedef void*(* ucx_allocator_calloc) (void *pool, size_t n, size_t size)</td>
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<p>A function pointer to the allocators <code>calloc()</code> function. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="structUcxAllocator.html" title="UCX allocator data structure containing memory management functions. ">UcxAllocator</a> </dd></dl>

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<a id="aaf2387ddaddd8ab4b267e6b00e5d6f7e"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aaf2387ddaddd8ab4b267e6b00e5d6f7e">&#9670;&nbsp;</a></span>ucx_allocator_free</h2>

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          <td class="memname">typedef void(* ucx_allocator_free) (void *pool, void *data)</td>
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<p>A function pointer to the allocators <code>free()</code> function. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="structUcxAllocator.html" title="UCX allocator data structure containing memory management functions. ">UcxAllocator</a> </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a29f0f6a23a70db3b60635cd6dc384473">&#9670;&nbsp;</a></span>ucx_allocator_malloc</h2>

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          <td class="memname">typedef void*(* ucx_allocator_malloc) (void *pool, size_t n)</td>
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<p>A function pointer to the allocators <code>malloc()</code> function. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="structUcxAllocator.html" title="UCX allocator data structure containing memory management functions. ">UcxAllocator</a> </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a6d7cf038a806e327c5da37321d04e426">&#9670;&nbsp;</a></span>ucx_allocator_realloc</h2>

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          <td class="memname">typedef void*(* ucx_allocator_realloc) (void *pool, void *data, size_t n)</td>
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<p>A function pointer to the allocators <code>realloc()</code> function. </p>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="structUcxAllocator.html" title="UCX allocator data structure containing memory management functions. ">UcxAllocator</a> </dd></dl>

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<h2 class="groupheader">Function Documentation</h2>
<a id="a98d2f1b341118b7a0e341fda5d8b2ebf"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a98d2f1b341118b7a0e341fda5d8b2ebf">&#9670;&nbsp;</a></span>ucx_default_allocator()</h2>

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          <td class="memname"><a class="el" href="structUcxAllocator.html">UcxAllocator</a>* ucx_default_allocator </td>
          <td>(</td>
          <td class="paramname"></td><td>)</td>
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<p>Returns a pointer to the default allocator. </p>
<p>The default allocator contains wrappers to the standard libc memory management functions. Use this function to get a pointer to a globally available allocator. You may also define an own <a class="el" href="structUcxAllocator.html" title="UCX allocator data structure containing memory management functions. ">UcxAllocator</a> by assigning <a class="el" href="allocator_8h.html#a1283a8f875f90a7af3aba5e031fc2e3f" title="Convenient macro for a default allocator struct definition. ">UCX_ALLOCATOR_DEFAULT</a> to a variable and pass the address of this variable to any function that takes a <a class="el" href="structUcxAllocator.html" title="UCX allocator data structure containing memory management functions. ">UcxAllocator</a> as argument. Note that using this function is the recommended way of passing a default allocator, thus it never runs out of scope.</p>
<dl class="section return"><dt>Returns</dt><dd>a pointer to the default allocator</dd></dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="allocator_8h.html#a1283a8f875f90a7af3aba5e031fc2e3f" title="Convenient macro for a default allocator struct definition. ">UCX_ALLOCATOR_DEFAULT</a> </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a3a0bfdd13d887012309c459b339f338f">&#9670;&nbsp;</a></span>ucx_default_calloc()</h2>

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          <td class="memname">void* ucx_default_calloc </td>
          <td>(</td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>ignore</em>, </td>
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          <td class="paramkey"></td>
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          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>n</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>size</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
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<p>A wrapper for the standard libc <code>calloc()</code> function. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ignore</td><td>ignored (may be used by allocators for pooled memory) </td></tr>
    <tr><td class="paramname">n</td><td>argument passed to <code>calloc()</code> </td></tr>
    <tr><td class="paramname">size</td><td>argument passed to <code>calloc()</code> </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>return value of <code>calloc()</code> </dd></dl>

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<a id="a646d83aaaadfe33ae414c0fad8bfc52a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a646d83aaaadfe33ae414c0fad8bfc52a">&#9670;&nbsp;</a></span>ucx_default_free()</h2>

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          <td class="memname">void ucx_default_free </td>
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          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>ignore</em>, </td>
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        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>data</em>&#160;</td>
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          <td></td>
          <td>)</td>
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<p>A wrapper for the standard libc <code>free()</code> function. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ignore</td><td>ignored (may be used by allocators for pooled memory) </td></tr>
    <tr><td class="paramname">data</td><td>argument passed to <code>free()</code> </td></tr>
  </table>
  </dd>
</dl>

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<a id="a96403ebf3d2312d95f2fe7627a1cdbc0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a96403ebf3d2312d95f2fe7627a1cdbc0">&#9670;&nbsp;</a></span>ucx_default_malloc()</h2>

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          <td class="memname">void* ucx_default_malloc </td>
          <td>(</td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>ignore</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>n</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>A wrapper for the standard libc <code>malloc()</code> function. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ignore</td><td>ignored (may be used by allocators for pooled memory) </td></tr>
    <tr><td class="paramname">n</td><td>argument passed to <code>malloc()</code> </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>return value of <code>malloc()</code> </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#a47cfc8af626a86fcb93a2b14b90498ed">&#9670;&nbsp;</a></span>ucx_default_realloc()</h2>

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          <td class="memname">void* ucx_default_realloc </td>
          <td>(</td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>ignore</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">void *&#160;</td>
          <td class="paramname"><em>data</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">size_t&#160;</td>
          <td class="paramname"><em>n</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
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<p>A wrapper for the standard libc <code>realloc()</code> function. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">ignore</td><td>ignored (may be used by allocators for pooled memory) </td></tr>
    <tr><td class="paramname">data</td><td>argumend passed to <code>realloc()</code> </td></tr>
    <tr><td class="paramname">n</td><td>argument passed to <code>realloc()</code> </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>return value of <code>realloc()</code> </dd></dl>

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