libmimalloc-sys2 0.1.53

Sys crate wrapping the mimalloc allocator
Documentation 
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<div class="header">
  <div class="summary">
<a href="#typedef-members">Typedefs</a> &#124;
<a href="#func-members">Functions</a>  </div>
  <div class="headertitle"><div class="title">Subprocesses</div></div>
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<div class="contents">

<p>A sub-process contains its own arena's and heaps that are fully separate from the main (sub) process.  
<a href="#details">More...</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="typedef-members" name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:ga8c0bcd1fee27c7641e9c3c0d991b3b7d" id="r_ga8c0bcd1fee27c7641e9c3c0d991b3b7d"><td class="memItemLeft" align="right" valign="top">typedef void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a></td></tr>
<tr class="memdesc:ga8c0bcd1fee27c7641e9c3c0d991b3b7d"><td class="mdescLeft">&#160;</td><td class="mdescRight">A process can associate threads with sub-processes.  <br /></td></tr>
<tr class="separator:ga8c0bcd1fee27c7641e9c3c0d991b3b7d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga7dcbc5863df9989b45e7051999448a4a" id="r_ga7dcbc5863df9989b45e7051999448a4a"><td class="memItemLeft" align="right" valign="top">typedef bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ga7dcbc5863df9989b45e7051999448a4a">mi_heap_visit_fun</a>(<a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> *heap, void *arg)</td></tr>
<tr class="memdesc:ga7dcbc5863df9989b45e7051999448a4a"><td class="mdescLeft">&#160;</td><td class="mdescRight">The type of a heap visitor function.  <br /></td></tr>
<tr class="separator:ga7dcbc5863df9989b45e7051999448a4a"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:ga2ecba0d7ebdc99e71bb985c4a1609806" id="r_ga2ecba0d7ebdc99e71bb985c4a1609806"><td class="memItemLeft" align="right" valign="top"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ga2ecba0d7ebdc99e71bb985c4a1609806">mi_subproc_main</a> (void)</td></tr>
<tr class="memdesc:ga2ecba0d7ebdc99e71bb985c4a1609806"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the main sub-process identifier.  <br /></td></tr>
<tr class="separator:ga2ecba0d7ebdc99e71bb985c4a1609806"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaabc4db6585bf16099e43e60d64364950" id="r_gaabc4db6585bf16099e43e60d64364950"><td class="memItemLeft" align="right" valign="top"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#gaabc4db6585bf16099e43e60d64364950">mi_subproc_current</a> (void)</td></tr>
<tr class="memdesc:gaabc4db6585bf16099e43e60d64364950"><td class="mdescLeft">&#160;</td><td class="mdescRight">Get the current sub-process identifier of this thread.  <br /></td></tr>
<tr class="separator:gaabc4db6585bf16099e43e60d64364950"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga8068cac328e41fa2170faef707315243" id="r_ga8068cac328e41fa2170faef707315243"><td class="memItemLeft" align="right" valign="top"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#ga8068cac328e41fa2170faef707315243">mi_subproc_new</a> (void)</td></tr>
<tr class="memdesc:ga8068cac328e41fa2170faef707315243"><td class="mdescLeft">&#160;</td><td class="mdescRight">Create a fresh sub-process (with no associated threads yet).  <br /></td></tr>
<tr class="separator:ga8068cac328e41fa2170faef707315243"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gada12e4d9bd382935c398ec324d0391f9" id="r_gada12e4d9bd382935c398ec324d0391f9"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#gada12e4d9bd382935c398ec324d0391f9">mi_subproc_destroy</a> (<a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a> subproc)</td></tr>
<tr class="memdesc:gada12e4d9bd382935c398ec324d0391f9"><td class="mdescLeft">&#160;</td><td class="mdescRight"><b>v3</b>: Destroy a previously created sub-process.  <br /></td></tr>
<tr class="separator:gada12e4d9bd382935c398ec324d0391f9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gaa7d263e9429bac9ac8345c9d25de610e" id="r_gaa7d263e9429bac9ac8345c9d25de610e"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#gaa7d263e9429bac9ac8345c9d25de610e">mi_subproc_delete</a> (<a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a> subproc)</td></tr>
<tr class="memdesc:gaa7d263e9429bac9ac8345c9d25de610e"><td class="mdescLeft">&#160;</td><td class="mdescRight"><b>v1</b>,<b>v2</b>: Delete a previously created sub-process.  <br /></td></tr>
<tr class="separator:gaa7d263e9429bac9ac8345c9d25de610e"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gadbc53414eb68b275588ec001ce1ddc7c" id="r_gadbc53414eb68b275588ec001ce1ddc7c"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#gadbc53414eb68b275588ec001ce1ddc7c">mi_subproc_add_current_thread</a> (<a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a> subproc)</td></tr>
<tr class="memdesc:gadbc53414eb68b275588ec001ce1ddc7c"><td class="mdescLeft">&#160;</td><td class="mdescRight">Add the current thread to the given sub-process.  <br /></td></tr>
<tr class="separator:gadbc53414eb68b275588ec001ce1ddc7c"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:gafd2136e7f167b5cd02b6ab00bed0ac93" id="r_gafd2136e7f167b5cd02b6ab00bed0ac93"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#gafd2136e7f167b5cd02b6ab00bed0ac93">mi_subproc_visit_heaps</a> (<a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a> subproc, <a class="el" href="#ga7dcbc5863df9989b45e7051999448a4a">mi_heap_visit_fun</a> *visitor, void *arg)</td></tr>
<tr class="memdesc:gafd2136e7f167b5cd02b6ab00bed0ac93"><td class="mdescLeft">&#160;</td><td class="mdescRight">Visit all heaps belonging to a subprocess.  <br /></td></tr>
<tr class="separator:gafd2136e7f167b5cd02b6ab00bed0ac93"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<p>A sub-process contains its own arena's and heaps that are fully separate from the main (sub) process. </p>
<p>A thread can belong to only one subprocess at a time. This can be used to separate out logically separate parts of a program (like running multiple interpreter instances in CPython). </p>
<h2 class="groupheader">Typedef Documentation</h2>
<a id="ga7dcbc5863df9989b45e7051999448a4a" name="ga7dcbc5863df9989b45e7051999448a4a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga7dcbc5863df9989b45e7051999448a4a">&#9670;&#160;</a></span>mi_heap_visit_fun</h2>

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          <td class="memname">typedef bool mi_heap_visit_fun(<a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> *heap, void *arg)</td>
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<p>The type of a heap visitor function. </p>
<dl class="section return"><dt>Returns</dt><dd>Return <code>true</code> to keep visiting. Returning <code>false</code> will stop visiting further heaps. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">&#9670;&#160;</a></span>mi_subproc_id_t</h2>

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          <td class="memname">typedef void* <a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a></td>
        </tr>
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<p>A process can associate threads with sub-processes. </p>
<p>Sub-processes are isolated and will not reclaim or visit memory from other sub-processes. Each subprocess always has an associated main heap. </p>

</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="gadbc53414eb68b275588ec001ce1ddc7c" name="gadbc53414eb68b275588ec001ce1ddc7c"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gadbc53414eb68b275588ec001ce1ddc7c">&#9670;&#160;</a></span>mi_subproc_add_current_thread()</h2>

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          <td class="memname">void mi_subproc_add_current_thread </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a></td>          <td class="paramname"><span class="paramname"><em>subproc</em></span></td><td>)</td>
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<p>Add the current thread to the given sub-process. </p>
<p>This should be called right after a thread is created (and no allocation has taken place yet). </p>

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<h2 class="memtitle"><span class="permalink"><a href="#gaabc4db6585bf16099e43e60d64364950">&#9670;&#160;</a></span>mi_subproc_current()</h2>

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          <td class="memname"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a> mi_subproc_current </td>
          <td>(</td>
          <td class="paramtype">void</td>          <td class="paramname"><span class="paramname"><em></em></span></td><td>)</td>
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<p>Get the current sub-process identifier of this thread. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#gaa7d263e9429bac9ac8345c9d25de610e">&#9670;&#160;</a></span>mi_subproc_delete()</h2>

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          <td class="memname">void mi_subproc_delete </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a></td>          <td class="paramname"><span class="paramname"><em>subproc</em></span></td><td>)</td>
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<p><b>v1</b>,<b>v2</b>: Delete a previously created sub-process. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">subproc</td><td>The sub-process identifier. Only delete sub-processes if all associated threads have terminated. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section see"><dt>See also</dt><dd><a class="el" href="#gada12e4d9bd382935c398ec324d0391f9" title="v3: Destroy a previously created sub-process.">mi_subproc_destroy()</a> </dd></dl>

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<a id="gada12e4d9bd382935c398ec324d0391f9" name="gada12e4d9bd382935c398ec324d0391f9"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gada12e4d9bd382935c398ec324d0391f9">&#9670;&#160;</a></span>mi_subproc_destroy()</h2>

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          <td class="memname">void mi_subproc_destroy </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a></td>          <td class="paramname"><span class="paramname"><em>subproc</em></span></td><td>)</td>
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<p><b>v3</b>: Destroy a previously created sub-process. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">subproc</td><td>The sub-process identifier. Only destroy sub-processes if all associated threads have terminated. </td></tr>
  </table>
  </dd>
</dl>

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<h2 class="memtitle"><span class="permalink"><a href="#ga2ecba0d7ebdc99e71bb985c4a1609806">&#9670;&#160;</a></span>mi_subproc_main()</h2>

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          <td class="memname"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a> mi_subproc_main </td>
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<p>Get the main sub-process identifier. </p>

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<h2 class="memtitle"><span class="permalink"><a href="#ga8068cac328e41fa2170faef707315243">&#9670;&#160;</a></span>mi_subproc_new()</h2>

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          <td class="memname"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a> mi_subproc_new </td>
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          <td class="paramtype">void</td>          <td class="paramname"><span class="paramname"><em></em></span></td><td>)</td>
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<p>Create a fresh sub-process (with no associated threads yet). </p>
<dl class="section return"><dt>Returns</dt><dd>The new sub-process identifier. </dd></dl>

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<h2 class="memtitle"><span class="permalink"><a href="#gafd2136e7f167b5cd02b6ab00bed0ac93">&#9670;&#160;</a></span>mi_subproc_visit_heaps()</h2>

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          <td class="memname">bool mi_subproc_visit_heaps </td>
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          <td class="paramtype"><a class="el" href="#ga8c0bcd1fee27c7641e9c3c0d991b3b7d">mi_subproc_id_t</a></td>          <td class="paramname"><span class="paramname"><em>subproc</em></span>, </td>
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          <td class="paramtype"><a class="el" href="#ga7dcbc5863df9989b45e7051999448a4a">mi_heap_visit_fun</a> *</td>          <td class="paramname"><span class="paramname"><em>visitor</em></span>, </td>
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<p>Visit all heaps belonging to a subprocess. </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramname">subproc</td><td>The subprocess that the heaps should belong to </td></tr>
    <tr><td class="paramname">visitor</td><td>The visitor function is called with each heap in <code>subproc</code> </td></tr>
    <tr><td class="paramname">arg</td><td>A user argument that is passed to each visitor function call. Return <code>true</code> if all heaps are visited (and false otherwise). </td></tr>
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