mirror of https://github.com/microsoft/mimalloc
386 lines
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386 lines
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<div class="header">
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<div class="summary">
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<a href="#nested-classes">Data Structures</a> |
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<a href="#typedef-members">Typedefs</a> |
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<div class="title">Heap Introspection</div> </div>
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<div class="contents">
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<p>Inspect the heap at runtime.
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<a href="#details">More...</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="nested-classes"></a>
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Data Structures</h2></td></tr>
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<tr class="memitem:structmi__heap__area__t"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analysis.html#structmi__heap__area__t">mi_heap_area_t</a></td></tr>
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<tr class="memdesc:structmi__heap__area__t"><td class="mdescLeft"> </td><td class="mdescRight">An area of heap space contains blocks of a single size. <a href="group__analysis.html#structmi__heap__area__t">More...</a><br /></td></tr>
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<tr class="separator:structmi__heap__area__t"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="typedef-members"></a>
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Typedefs</h2></td></tr>
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<tr class="memitem:gadfa01e2900f0e5d515ad5506b26f6d65"><td class="memItemLeft" align="right" valign="top">typedef bool() </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analysis.html#gadfa01e2900f0e5d515ad5506b26f6d65">mi_block_visit_fun</a>(const <a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> *heap, const <a class="el" href="group__analysis.html#structmi__heap__area__t">mi_heap_area_t</a> *area, void *block, size_t block_size, void *arg)</td></tr>
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<tr class="memdesc:gadfa01e2900f0e5d515ad5506b26f6d65"><td class="mdescLeft"> </td><td class="mdescRight">Visitor function passed to <a class="el" href="group__analysis.html#ga70c46687dc6e9dc98b232b02646f8bed" title="Visit all areas and blocks in a heap. ">mi_heap_visit_blocks()</a> <a href="#gadfa01e2900f0e5d515ad5506b26f6d65">More...</a><br /></td></tr>
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<tr class="separator:gadfa01e2900f0e5d515ad5506b26f6d65"><td class="memSeparator" colspan="2"> </td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr class="memitem:gaa862aa8ed8d57d84cae41fc1022d71af"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analysis.html#gaa862aa8ed8d57d84cae41fc1022d71af">mi_heap_contains_block</a> (<a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> *heap, const void *p)</td></tr>
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<tr class="memdesc:gaa862aa8ed8d57d84cae41fc1022d71af"><td class="mdescLeft"> </td><td class="mdescRight">Does a heap contain a pointer to a previously allocated block? <a href="#gaa862aa8ed8d57d84cae41fc1022d71af">More...</a><br /></td></tr>
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<tr class="separator:gaa862aa8ed8d57d84cae41fc1022d71af"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga0d67c1789faaa15ff366c024fcaf6377"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analysis.html#ga0d67c1789faaa15ff366c024fcaf6377">mi_heap_check_owned</a> (<a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> *heap, const void *p)</td></tr>
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<tr class="memdesc:ga0d67c1789faaa15ff366c024fcaf6377"><td class="mdescLeft"> </td><td class="mdescRight">Check safely if any pointer is part of a heap. <a href="#ga0d67c1789faaa15ff366c024fcaf6377">More...</a><br /></td></tr>
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<tr class="separator:ga0d67c1789faaa15ff366c024fcaf6377"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga628c237489c2679af84a4d0d143b3dd5"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analysis.html#ga628c237489c2679af84a4d0d143b3dd5">mi_check_owned</a> (const void *p)</td></tr>
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<tr class="memdesc:ga628c237489c2679af84a4d0d143b3dd5"><td class="mdescLeft"> </td><td class="mdescRight">Check safely if any pointer is part of the default heap of this thread. <a href="#ga628c237489c2679af84a4d0d143b3dd5">More...</a><br /></td></tr>
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<tr class="separator:ga628c237489c2679af84a4d0d143b3dd5"><td class="memSeparator" colspan="2"> </td></tr>
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<tr class="memitem:ga70c46687dc6e9dc98b232b02646f8bed"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="group__analysis.html#ga70c46687dc6e9dc98b232b02646f8bed">mi_heap_visit_blocks</a> (const <a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> *heap, bool visit_all_blocks, <a class="el" href="group__analysis.html#gadfa01e2900f0e5d515ad5506b26f6d65">mi_block_visit_fun</a> *visitor, void *arg)</td></tr>
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<tr class="memdesc:ga70c46687dc6e9dc98b232b02646f8bed"><td class="mdescLeft"> </td><td class="mdescRight">Visit all areas and blocks in a heap. <a href="#ga70c46687dc6e9dc98b232b02646f8bed">More...</a><br /></td></tr>
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<tr class="separator:ga70c46687dc6e9dc98b232b02646f8bed"><td class="memSeparator" colspan="2"> </td></tr>
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</table>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
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<p>Inspect the heap at runtime. </p>
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<hr/><h2 class="groupheader">Data Structure Documentation</h2>
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<a name="structmi__heap__area__t" id="structmi__heap__area__t"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#structmi__heap__area__t">◆ </a></span>mi_heap_area_t</h2>
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<div class="memitem">
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<td class="memname">struct mi_heap_area_t</td>
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</tr>
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</table>
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</div><div class="memdoc">
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<div class="textblock"><p>An area of heap space contains blocks of a single size. </p>
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<p>The bytes in freed blocks are <code>committed - used</code>. </p>
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</div><table class="fieldtable">
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<tr><th colspan="3">Data Fields</th></tr>
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<tr><td class="fieldtype">
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<a id="a332a6c14d736a99699d5453a1cb04b41"></a>size_t</td>
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<td class="fieldname">
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block_size</td>
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<td class="fielddoc">
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size in bytes of one block </td></tr>
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<tr><td class="fieldtype">
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<a id="ae0085e6e1cf059a4eb7767e30e9991b8"></a>void *</td>
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<td class="fieldname">
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blocks</td>
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<td class="fielddoc">
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start of the area containing heap blocks </td></tr>
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<tr><td class="fieldtype">
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<a id="ab47526df656d8837ec3e97f11b83f835"></a>size_t</td>
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<td class="fieldname">
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committed</td>
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<td class="fielddoc">
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current committed bytes of this area </td></tr>
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<tr><td class="fieldtype">
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<a id="ae848a3e6840414891035423948ca0383"></a>size_t</td>
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<td class="fieldname">
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reserved</td>
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<td class="fielddoc">
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bytes reserved for this area </td></tr>
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<tr><td class="fieldtype">
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<a id="ab820302c5cd0df133eb8e51650a008b4"></a>size_t</td>
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<td class="fieldname">
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used</td>
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<td class="fielddoc">
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bytes in use by allocated blocks </td></tr>
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</table>
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</div>
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</div>
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<h2 class="groupheader">Typedef Documentation</h2>
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<a id="gadfa01e2900f0e5d515ad5506b26f6d65"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gadfa01e2900f0e5d515ad5506b26f6d65">◆ </a></span>mi_block_visit_fun</h2>
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<div class="memitem">
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<td class="memname">typedef bool() mi_block_visit_fun(const <a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> *heap, const <a class="el" href="group__analysis.html#structmi__heap__area__t">mi_heap_area_t</a> *area, void *block, size_t block_size, void *arg)</td>
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</tr>
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</div><div class="memdoc">
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<p>Visitor function passed to <a class="el" href="group__analysis.html#ga70c46687dc6e9dc98b232b02646f8bed" title="Visit all areas and blocks in a heap. ">mi_heap_visit_blocks()</a> </p>
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<dl class="section return"><dt>Returns</dt><dd><em>true</em> if ok, <em>false</em> to stop visiting (i.e. break)</dd></dl>
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<p>This function is always first called for every <em>area</em> with <em>block</em> as a <em>NULL</em> pointer. If <em>visit_all_blocks</em> was <em>true</em>, the function is then called for every allocated block in that area. </p>
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</div>
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</div>
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<h2 class="groupheader">Function Documentation</h2>
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<a id="ga628c237489c2679af84a4d0d143b3dd5"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga628c237489c2679af84a4d0d143b3dd5">◆ </a></span>mi_check_owned()</h2>
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<div class="memitem">
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<td class="memname">bool mi_check_owned </td>
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<td>(</td>
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<td class="paramtype">const void * </td>
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<td class="paramname"><em>p</em></td><td>)</td>
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<td></td>
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</div><div class="memdoc">
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<p>Check safely if any pointer is part of the default heap of this thread. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">p</td><td>Any pointer – not required to be previously allocated by us. </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd><em>true</em> if <em>p</em> points to a block in default heap of this thread.</dd></dl>
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<p>Note: expensive function, linear in the pages in the heap. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="group__analysis.html#gaa862aa8ed8d57d84cae41fc1022d71af" title="Does a heap contain a pointer to a previously allocated block? ">mi_heap_contains_block()</a> </dd>
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<dd>
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<a class="el" href="group__heap.html#ga8db4cbb87314a989a9a187464d6b5e05" title="Get the default heap that is used for mi_malloc() et al. ">mi_heap_get_default()</a> </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#ga0d67c1789faaa15ff366c024fcaf6377">◆ </a></span>mi_heap_check_owned()</h2>
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<td class="memname">bool mi_heap_check_owned </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> * </td>
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<td class="paramname"><em>heap</em>, </td>
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<td class="paramtype">const void * </td>
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<td class="paramname"><em>p</em> </td>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</div><div class="memdoc">
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<p>Check safely if any pointer is part of a heap. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">heap</td><td>The heap. </td></tr>
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<tr><td class="paramname">p</td><td>Any pointer – not required to be previously allocated by us. </td></tr>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd><em>true</em> if <em>p</em> points to a block in <em>heap</em>.</dd></dl>
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<p>Note: expensive function, linear in the pages in the heap. </p><dl class="section see"><dt>See also</dt><dd><a class="el" href="group__analysis.html#gaa862aa8ed8d57d84cae41fc1022d71af" title="Does a heap contain a pointer to a previously allocated block? ">mi_heap_contains_block()</a> </dd>
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<dd>
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<a class="el" href="group__heap.html#ga8db4cbb87314a989a9a187464d6b5e05" title="Get the default heap that is used for mi_malloc() et al. ">mi_heap_get_default()</a> </dd></dl>
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<a id="gaa862aa8ed8d57d84cae41fc1022d71af"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#gaa862aa8ed8d57d84cae41fc1022d71af">◆ </a></span>mi_heap_contains_block()</h2>
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<td class="memname">bool mi_heap_contains_block </td>
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<td>(</td>
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<td class="paramtype"><a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> * </td>
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<td class="paramname"><em>heap</em>, </td>
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<td></td>
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<td class="paramtype">const void * </td>
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<td class="paramname"><em>p</em> </td>
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<tr>
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<td></td>
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<td>)</td>
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<td></td><td></td>
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</table>
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</div><div class="memdoc">
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<p>Does a heap contain a pointer to a previously allocated block? </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">heap</td><td>The heap. </td></tr>
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<tr><td class="paramname">p</td><td>Pointer to a previously allocated block (in any heap)– cannot be some random pointer! </td></tr>
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</table>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd><em>true</em> if the block pointed to by <em>p</em> is in the <em>heap</em>. </dd></dl>
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<dl class="section see"><dt>See also</dt><dd><a class="el" href="group__analysis.html#ga0d67c1789faaa15ff366c024fcaf6377" title="Check safely if any pointer is part of a heap. ">mi_heap_check_owned()</a> </dd></dl>
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<a id="ga70c46687dc6e9dc98b232b02646f8bed"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ga70c46687dc6e9dc98b232b02646f8bed">◆ </a></span>mi_heap_visit_blocks()</h2>
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<td class="memname">bool mi_heap_visit_blocks </td>
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<td>(</td>
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<td class="paramtype">const <a class="el" href="group__heap.html#ga34a47cde5a5b38c29f1aa3c5e76943c2">mi_heap_t</a> * </td>
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<td class="paramname"><em>heap</em>, </td>
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<td></td>
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<td class="paramtype">bool </td>
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<td class="paramname"><em>visit_all_blocks</em>, </td>
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<td class="paramtype"><a class="el" href="group__analysis.html#gadfa01e2900f0e5d515ad5506b26f6d65">mi_block_visit_fun</a> * </td>
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<td class="paramname"><em>visitor</em>, </td>
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<td></td>
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<td class="paramtype">void * </td>
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<td class="paramname"><em>arg</em> </td>
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<td></td>
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<td>)</td>
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</div><div class="memdoc">
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<p>Visit all areas and blocks in a heap. </p>
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<dl class="params"><dt>Parameters</dt><dd>
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<table class="params">
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<tr><td class="paramname">heap</td><td>The heap to visit. </td></tr>
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<tr><td class="paramname">visit_all_blocks</td><td>If <em>true</em> visits all allocated blocks, otherwise <em>visitor</em> is only called for every heap area. </td></tr>
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<tr><td class="paramname">visitor</td><td>This function is called for every area in the heap (with <em>block</em> as <em>NULL</em>). If <em>visit_all_blocks</em> is <em>true</em>, <em>visitor</em> is also called for every allocated block in every area (with <code>block!=NULL</code>). return <em>false</em> from this function to stop visiting early. </td></tr>
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<tr><td class="paramname">arg</td><td>Extra argument passed to <em>visitor</em>. </td></tr>
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</dd>
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</dl>
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<dl class="section return"><dt>Returns</dt><dd><em>true</em> if all areas and blocks were visited. </dd></dl>
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</div><!-- contents -->
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<li class="footer">Generated by
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<a href="http://www.doxygen.org/index.html">
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.14 </li>
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