1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2<html xmlns="http://www.w3.org/1999/xhtml"> 3<head> 4<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> 5<meta http-equiv="X-UA-Compatible" content="IE=9"/> 6<meta name="generator" content="Doxygen 1.8.14"/> 7<meta name="viewport" content="width=device-width, initial-scale=1"/> 8<title>Magick++: BlobRef.cpp Source File</title> 9<link href="tabs.css" rel="stylesheet" type="text/css"/> 10<script type="text/javascript" src="jquery.js"></script> 11<script type="text/javascript" src="dynsections.js"></script> 12<link href="navtree.css" rel="stylesheet" type="text/css"/> 13<script type="text/javascript" src="resize.js"></script> 14<script type="text/javascript" src="navtreedata.js"></script> 15<script type="text/javascript" src="navtree.js"></script> 16<script type="text/javascript"> 17/* @license 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type="text/javascript"> 51/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ 52$(document).ready(function(){initNavTree('BlobRef_8cpp_source.html','');}); 53/* @license-end */ 54</script> 55<div id="doc-content"> 56<div class="header"> 57 <div class="headertitle"> 58<div class="title">BlobRef.cpp</div> </div> 59</div><!--header--> 60<div class="contents"> 61<a href="BlobRef_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// This may look like C code, but it is really -*- C++ -*-</span></div><div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">//</span></div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright Bob Friesenhahn, 1999, 2000, 2001, 2002, 2004</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">// Copyright Dirk Lemstra 2014-2015</span></div><div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">//</span></div><div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// Implementation of Blob</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">//</span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> </div><div class="line"><a name="l00009"></a><span class="lineno"><a class="line" href="BlobRef_8cpp.html#a24d8db5449916b4dd0283f5f30a5edc7"> 9</a></span> <span class="preprocessor">#define MAGICKCORE_IMPLEMENTATION 1</span></div><div class="line"><a name="l00010"></a><span class="lineno"><a class="line" href="BlobRef_8cpp.html#a99e08660df365803d576005502caf7e5"> 10</a></span> <span class="preprocessor">#define MAGICK_PLUSPLUS_IMPLEMENTATION 1</span></div><div class="line"><a name="l00011"></a><span class="lineno"> 11</span> </div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="preprocessor">#include "<a class="code" href="Include_8h.html">Magick++/Include.h</a>"</span></div><div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#include "<a class="code" href="BlobRef_8h.html">Magick++/BlobRef.h</a>"</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#include "<a class="code" href="Exception_8h.html">Magick++/Exception.h</a>"</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor">#include "<a class="code" href="Thread_8h.html">Magick++/Thread.h</a>"</span></div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> </div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <string.h></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div><div class="line"><a name="l00019"></a><span class="lineno"><a class="line" href="classMagick_1_1BlobRef.html#accf559dab9707f5f24370f2c482ad8b7"> 19</a></span> <a class="code" href="classMagick_1_1BlobRef.html#accf559dab9707f5f24370f2c482ad8b7">Magick::BlobRef::BlobRef</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* data_,<span class="keyword">const</span> <span class="keywordtype">size_t</span> length_)</div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  : allocator(<a class="code" href="namespaceMagick.html">Magick</a>::<a class="code" href="classMagick_1_1Blob.html">Blob</a>::NewAllocator),</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  length(length_),</div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  data((void*) NULL),</div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  _mutexLock(),</div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  _refCount(1)</div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> {</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  <span class="keywordflow">if</span> (data_ != (<span class="keyword">const</span> <span class="keywordtype">void</span>*) NULL)</div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  {</div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  <a class="code" href="classMagick_1_1BlobRef.html#a8a88091de11081529a2d8781734e42c1">data</a>=<span class="keyword">new</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>[length_];</div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  memcpy(<a class="code" href="classMagick_1_1BlobRef.html#a8a88091de11081529a2d8781734e42c1">data</a>,data_,length_);</div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  }</div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> }</div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div><div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="classMagick_1_1BlobRef.html#a64bf18194f44105abfe97631fa16ab6e"> 33</a></span> <a class="code" href="classMagick_1_1BlobRef.html#a64bf18194f44105abfe97631fa16ab6e">Magick::BlobRef::~BlobRef</a>(<span class="keywordtype">void</span>)</div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> {</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordflow">if</span> (allocator == <a class="code" href="classMagick_1_1Blob.html#a320f999fa1ed7e9ee0e6f28858499e2ea8dfea41b347695cd3ee8cb88cc7123dd">Magick::Blob::NewAllocator</a>)</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  {</div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">delete</span>[] <span class="keyword">static_cast<</span><span class="keywordtype">unsigned</span> <span class="keywordtype">char</span>*<span class="keyword">></span>(data);</div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  data=(<span class="keywordtype">void</span> *) NULL;</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  }</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (allocator == <a class="code" href="classMagick_1_1Blob.html#a320f999fa1ed7e9ee0e6f28858499e2eadd73c6a4bf2388460e3df6141a24fe2a">Magick::Blob::MallocAllocator</a>)</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  data=(<span class="keywordtype">void</span> *) RelinquishMagickMemory(data);</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> }</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"><a class="line" href="classMagick_1_1BlobRef.html#a93856bd94eea1574f86ab98d0495715b"> 44</a></span> <span class="keywordtype">size_t</span> <a class="code" href="classMagick_1_1BlobRef.html#a93856bd94eea1574f86ab98d0495715b">Magick::BlobRef::decrease</a>()</div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">size_t</span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  count;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  _mutexLock.lock();</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">if</span> (_refCount == 0)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  _mutexLock.unlock();</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <a class="code" href="namespaceMagick.html#acf038b43e710ea498bb5b9914e54ee3a">throwExceptionExplicit</a>(MagickCore::OptionError,</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="stringliteral">"Invalid call to decrease"</span>);</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">return</span>(0);</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  }</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  count=--_refCount;</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  _mutexLock.unlock();</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">return</span>(count);</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> }</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div><div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classMagick_1_1BlobRef.html#a183f4202805d204667ad601e93eeabaf"> 62</a></span> <span class="keywordtype">void</span> <a class="code" href="classMagick_1_1BlobRef.html#a183f4202805d204667ad601e93eeabaf">Magick::BlobRef::increase</a>()</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> {</div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  _mutexLock.lock();</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  _refCount++;</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  _mutexLock.unlock();</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> }</div><div class="ttc" id="BlobRef_8h_html"><div class="ttname"><a href="BlobRef_8h.html">BlobRef.h</a></div></div> 62<div class="ttc" id="classMagick_1_1Blob_html_a320f999fa1ed7e9ee0e6f28858499e2eadd73c6a4bf2388460e3df6141a24fe2a"><div class="ttname"><a href="classMagick_1_1Blob.html#a320f999fa1ed7e9ee0e6f28858499e2eadd73c6a4bf2388460e3df6141a24fe2a">Magick::Blob::MallocAllocator</a></div><div class="ttdef"><b>Definition:</b> <a href="Blob_8h_source.html#l00026">Blob.h:26</a></div></div> 63<div class="ttc" id="classMagick_1_1BlobRef_html_accf559dab9707f5f24370f2c482ad8b7"><div class="ttname"><a href="classMagick_1_1BlobRef.html#accf559dab9707f5f24370f2c482ad8b7">Magick::BlobRef::BlobRef</a></div><div class="ttdeci">BlobRef(const void *data_, const size_t length_)</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8cpp_source.html#l00019">BlobRef.cpp:19</a></div></div> 64<div class="ttc" id="classMagick_1_1BlobRef_html_a8a88091de11081529a2d8781734e42c1"><div class="ttname"><a href="classMagick_1_1BlobRef.html#a8a88091de11081529a2d8781734e42c1">Magick::BlobRef::data</a></div><div class="ttdeci">void * data</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8h_source.html#l00039">BlobRef.h:39</a></div></div> 65<div class="ttc" id="Thread_8h_html"><div class="ttname"><a href="Thread_8h.html">Thread.h</a></div></div> 66<div class="ttc" id="classMagick_1_1Blob_html"><div class="ttname"><a href="classMagick_1_1Blob.html">Magick::Blob</a></div><div class="ttdef"><b>Definition:</b> <a href="Blob_8h_source.html#l00020">Blob.h:20</a></div></div> 67<div class="ttc" id="classMagick_1_1BlobRef_html_a183f4202805d204667ad601e93eeabaf"><div class="ttname"><a href="classMagick_1_1BlobRef.html#a183f4202805d204667ad601e93eeabaf">Magick::BlobRef::increase</a></div><div class="ttdeci">void increase()</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8cpp_source.html#l00062">BlobRef.cpp:62</a></div></div> 68<div class="ttc" id="namespaceMagick_html_acf038b43e710ea498bb5b9914e54ee3a"><div class="ttname"><a href="namespaceMagick.html#acf038b43e710ea498bb5b9914e54ee3a">Magick::throwExceptionExplicit</a></div><div class="ttdeci">MagickPPExport void throwExceptionExplicit(const MagickCore::ExceptionType severity_, const char *reason_, const char *description_=(char *) NULL)</div><div class="ttdef"><b>Definition:</b> <a href="Exception_8cpp_source.html#l00806">Exception.cpp:806</a></div></div> 69<div class="ttc" id="classMagick_1_1BlobRef_html_a93856bd94eea1574f86ab98d0495715b"><div class="ttname"><a href="classMagick_1_1BlobRef.html#a93856bd94eea1574f86ab98d0495715b">Magick::BlobRef::decrease</a></div><div class="ttdeci">size_t decrease()</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8cpp_source.html#l00044">BlobRef.cpp:44</a></div></div> 70<div class="ttc" id="Include_8h_html"><div class="ttname"><a href="Include_8h.html">Include.h</a></div></div> 71<div class="ttc" id="classMagick_1_1Blob_html_a320f999fa1ed7e9ee0e6f28858499e2ea8dfea41b347695cd3ee8cb88cc7123dd"><div class="ttname"><a href="classMagick_1_1Blob.html#a320f999fa1ed7e9ee0e6f28858499e2ea8dfea41b347695cd3ee8cb88cc7123dd">Magick::Blob::NewAllocator</a></div><div class="ttdef"><b>Definition:</b> <a href="Blob_8h_source.html#l00027">Blob.h:27</a></div></div> 72<div class="ttc" id="namespaceMagick_html"><div class="ttname"><a href="namespaceMagick.html">Magick</a></div><div class="ttdef"><b>Definition:</b> <a href="Blob_8h_source.html#l00015">Blob.h:15</a></div></div> 73<div class="ttc" id="Exception_8h_html"><div class="ttname"><a href="Exception_8h.html">Exception.h</a></div></div> 74<div class="ttc" id="classMagick_1_1BlobRef_html_a64bf18194f44105abfe97631fa16ab6e"><div class="ttname"><a href="classMagick_1_1BlobRef.html#a64bf18194f44105abfe97631fa16ab6e">Magick::BlobRef::~BlobRef</a></div><div class="ttdeci">~BlobRef(void)</div><div class="ttdef"><b>Definition:</b> <a href="BlobRef_8cpp_source.html#l00033">BlobRef.cpp:33</a></div></div> 75</div><!-- fragment --></div><!-- contents --> 76</div><!-- doc-content --> 77<!-- start footer part --> 78<div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> 79 <ul> 80 <li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_43e0a1f539e00dcfa1a6bc4d4fee4fc2.html">home</a></li><li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_68918867e77b0a45f29c43673f2273f8.html">cristy</a></li><li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_0664224c5e489c82e6416cddc46e1af0.html">ImageMagick-7</a></li><li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_436bc20d1ebf054c4eca7a72174ce42e.html">Magick++</a></li><li class="navelem"><a class="el" href="https://imagemagick.org/api/Magick++/dir_94b620f9ceea3d56d5ade00d9eab2203.html">lib</a></li><li class="navelem"><a class="el" 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