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<div id="projectname">EXIF library (libexif) API<span id="projectnumber"> 0.6.24</span>
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<a href="#typedef-members">Typedefs</a> |
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<p>Define the ExifMem data type and the associated functions.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include <<a class="el" href="exif-utils_8h_source.html">libexif/exif-utils.h</a>></code><br />
</div>
<p><a href="exif-mem_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 id="typedef-members" name="typedef-members"></a>
Typedefs</h2></td></tr>
<tr class="memitem:a983dbcdc43d515ef6c7dc003240ef427" id="r_a983dbcdc43d515ef6c7dc003240ef427"><td class="memItemLeft" align="right" valign="top">typedef void *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mem_8h.html#a983dbcdc43d515ef6c7dc003240ef427">ExifMemAllocFunc</a>) (<a class="el" href="exif-utils_8h.html#a34c5d7765ab2e6dec8308c5127a10afa">ExifLong</a> s)</td></tr>
<tr class="memdesc:a983dbcdc43d515ef6c7dc003240ef427"><td class="mdescLeft"> </td><td class="mdescRight">Should work like calloc() <br /></td></tr>
<tr class="separator:a983dbcdc43d515ef6c7dc003240ef427"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aea07644ea9dc97d5572d85ef03827f65" id="r_aea07644ea9dc97d5572d85ef03827f65"><td class="memItemLeft" align="right" valign="top">typedef void *(* </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mem_8h.html#aea07644ea9dc97d5572d85ef03827f65">ExifMemReallocFunc</a>) (void *p, <a class="el" href="exif-utils_8h.html#a34c5d7765ab2e6dec8308c5127a10afa">ExifLong</a> s)</td></tr>
<tr class="memdesc:aea07644ea9dc97d5572d85ef03827f65"><td class="mdescLeft"> </td><td class="mdescRight">Should work like realloc() <br /></td></tr>
<tr class="separator:aea07644ea9dc97d5572d85ef03827f65"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a82bf96c57cc83eabdba1ad1ad0d69263" id="r_a82bf96c57cc83eabdba1ad1ad0d69263"><td class="memItemLeft" align="right" valign="top">typedef void(* </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mem_8h.html#a82bf96c57cc83eabdba1ad1ad0d69263">ExifMemFreeFunc</a>) (void *p)</td></tr>
<tr class="memdesc:a82bf96c57cc83eabdba1ad1ad0d69263"><td class="mdescLeft"> </td><td class="mdescRight">Free method for ExifMem. <br /></td></tr>
<tr class="separator:a82bf96c57cc83eabdba1ad1ad0d69263"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aab8aacbc0ed6f11a1f022b7b1bf4750e" id="r_aab8aacbc0ed6f11a1f022b7b1bf4750e"><td class="memItemLeft" align="right" valign="top"><a id="aab8aacbc0ed6f11a1f022b7b1bf4750e" name="aab8aacbc0ed6f11a1f022b7b1bf4750e"></a>
typedef struct _ExifMem </td><td class="memItemRight" valign="bottom"><b>ExifMem</b></td></tr>
<tr class="memdesc:aab8aacbc0ed6f11a1f022b7b1bf4750e"><td class="mdescLeft"> </td><td class="mdescRight">ExifMem define a memory allocator. <br /></td></tr>
<tr class="separator:aab8aacbc0ed6f11a1f022b7b1bf4750e"><td class="memSeparator" colspan="2"> </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:ad56b5b9868ea77e681a903513c3b55f3" id="r_ad56b5b9868ea77e681a903513c3b55f3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mem_8h.html#ad56b5b9868ea77e681a903513c3b55f3">exif_mem_new</a> (<a class="el" href="exif-mem_8h.html#a983dbcdc43d515ef6c7dc003240ef427">ExifMemAllocFunc</a> a, <a class="el" href="exif-mem_8h.html#aea07644ea9dc97d5572d85ef03827f65">ExifMemReallocFunc</a> r, <a class="el" href="exif-mem_8h.html#a82bf96c57cc83eabdba1ad1ad0d69263">ExifMemFreeFunc</a> f)</td></tr>
<tr class="memdesc:ad56b5b9868ea77e681a903513c3b55f3"><td class="mdescLeft"> </td><td class="mdescRight">Create a new ExifMem. <br /></td></tr>
<tr class="separator:ad56b5b9868ea77e681a903513c3b55f3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:acedafabd958c9846ea3f908135715dcf" id="r_acedafabd958c9846ea3f908135715dcf"><td class="memItemLeft" align="right" valign="top"><a id="acedafabd958c9846ea3f908135715dcf" name="acedafabd958c9846ea3f908135715dcf"></a>
void </td><td class="memItemRight" valign="bottom"><b>exif_mem_ref</b> (<a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> *)</td></tr>
<tr class="memdesc:acedafabd958c9846ea3f908135715dcf"><td class="mdescLeft"> </td><td class="mdescRight">Refcount an ExifMem. <br /></td></tr>
<tr class="separator:acedafabd958c9846ea3f908135715dcf"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:adabd1345e1172ce379658cecfd3f7d70" id="r_adabd1345e1172ce379658cecfd3f7d70"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mem_8h.html#adabd1345e1172ce379658cecfd3f7d70">exif_mem_unref</a> (<a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> *)</td></tr>
<tr class="memdesc:adabd1345e1172ce379658cecfd3f7d70"><td class="mdescLeft"> </td><td class="mdescRight">Unrefcount an ExifMem. <br /></td></tr>
<tr class="separator:adabd1345e1172ce379658cecfd3f7d70"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6a49a0fff19d5784d3ee890a9ece7366" id="r_a6a49a0fff19d5784d3ee890a9ece7366"><td class="memItemLeft" align="right" valign="top"><a id="a6a49a0fff19d5784d3ee890a9ece7366" name="a6a49a0fff19d5784d3ee890a9ece7366"></a>
void * </td><td class="memItemRight" valign="bottom"><b>exif_mem_alloc</b> (<a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> *m, <a class="el" href="exif-utils_8h.html#a34c5d7765ab2e6dec8308c5127a10afa">ExifLong</a> s)</td></tr>
<tr class="separator:a6a49a0fff19d5784d3ee890a9ece7366"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a082842bf500722f303c2f9435ea2c50f" id="r_a082842bf500722f303c2f9435ea2c50f"><td class="memItemLeft" align="right" valign="top"><a id="a082842bf500722f303c2f9435ea2c50f" name="a082842bf500722f303c2f9435ea2c50f"></a>
void * </td><td class="memItemRight" valign="bottom"><b>exif_mem_realloc</b> (<a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> *m, void *p, <a class="el" href="exif-utils_8h.html#a34c5d7765ab2e6dec8308c5127a10afa">ExifLong</a> s)</td></tr>
<tr class="separator:a082842bf500722f303c2f9435ea2c50f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab7ec7776593c6ffe5f49fec974f7cfe1" id="r_ab7ec7776593c6ffe5f49fec974f7cfe1"><td class="memItemLeft" align="right" valign="top"><a id="ab7ec7776593c6ffe5f49fec974f7cfe1" name="ab7ec7776593c6ffe5f49fec974f7cfe1"></a>
void </td><td class="memItemRight" valign="bottom"><b>exif_mem_free</b> (<a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> *m, void *p)</td></tr>
<tr class="separator:ab7ec7776593c6ffe5f49fec974f7cfe1"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:acc8fd4e1a319a790581975db6f1a7233" id="r_acc8fd4e1a319a790581975db6f1a7233"><td class="memItemLeft" align="right" valign="top"><a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="exif-mem_8h.html#acc8fd4e1a319a790581975db6f1a7233">exif_mem_new_default</a> (void)</td></tr>
<tr class="memdesc:acc8fd4e1a319a790581975db6f1a7233"><td class="mdescLeft"> </td><td class="mdescRight">Create a new ExifMem with default values for your convenience. <br /></td></tr>
<tr class="separator:acc8fd4e1a319a790581975db6f1a7233"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Define the ExifMem data type and the associated functions. </p>
<p>ExifMem defines the memory management functions used within libexif. </p>
</div><h2 class="groupheader">Typedef Documentation</h2>
<a id="a983dbcdc43d515ef6c7dc003240ef427" name="a983dbcdc43d515ef6c7dc003240ef427"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a983dbcdc43d515ef6c7dc003240ef427">◆ </a></span>ExifMemAllocFunc</h2>
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<td class="memname">typedef void *(* ExifMemAllocFunc) (<a class="el" href="exif-utils_8h.html#a34c5d7765ab2e6dec8308c5127a10afa">ExifLong</a> s)</td>
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<p>Should work like calloc() </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">s</td><td>the size of the block to allocate. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the allocated memory and initialized. </dd></dl>
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<h2 class="memtitle"><span class="permalink"><a href="#a82bf96c57cc83eabdba1ad1ad0d69263">◆ </a></span>ExifMemFreeFunc</h2>
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<td class="memname">typedef void(* ExifMemFreeFunc) (void *p)</td>
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<p>Free method for ExifMem. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">p</td><td>the pointer to free </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>the freed pointer </dd></dl>
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<a id="aea07644ea9dc97d5572d85ef03827f65" name="aea07644ea9dc97d5572d85ef03827f65"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aea07644ea9dc97d5572d85ef03827f65">◆ </a></span>ExifMemReallocFunc</h2>
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<td class="memname">typedef void *(* ExifMemReallocFunc) (void *p, <a class="el" href="exif-utils_8h.html#a34c5d7765ab2e6dec8308c5127a10afa">ExifLong</a> s)</td>
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</div><div class="memdoc">
<p>Should work like realloc() </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">p</td><td>the pointer to reallocate </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">s</td><td>the size of the reallocated block </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>allocated memory </dd></dl>
</div>
</div>
<h2 class="groupheader">Function Documentation</h2>
<a id="ad56b5b9868ea77e681a903513c3b55f3" name="ad56b5b9868ea77e681a903513c3b55f3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad56b5b9868ea77e681a903513c3b55f3">◆ </a></span>exif_mem_new()</h2>
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<td class="memname"><a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> * exif_mem_new </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mem_8h.html#a983dbcdc43d515ef6c7dc003240ef427">ExifMemAllocFunc</a> </td>
<td class="paramname"><em>a</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="exif-mem_8h.html#aea07644ea9dc97d5572d85ef03827f65">ExifMemReallocFunc</a> </td>
<td class="paramname"><em>r</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="exif-mem_8h.html#a82bf96c57cc83eabdba1ad1ad0d69263">ExifMemFreeFunc</a> </td>
<td class="paramname"><em>f</em> </td>
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<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Create a new ExifMem. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">a</td><td>the allocator function </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">r</td><td>the reallocator function </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">f</td><td>the free function </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>allocated <a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e" title="ExifMem define a memory allocator.">ExifMem</a>, or NULL on error </dd></dl>
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<a id="acc8fd4e1a319a790581975db6f1a7233" name="acc8fd4e1a319a790581975db6f1a7233"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acc8fd4e1a319a790581975db6f1a7233">◆ </a></span>exif_mem_new_default()</h2>
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<td class="memname"><a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> * exif_mem_new_default </td>
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<p>Create a new ExifMem with default values for your convenience. </p>
<dl class="section return"><dt>Returns</dt><dd>return a new default ExifMem </dd></dl>
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<a id="adabd1345e1172ce379658cecfd3f7d70" name="adabd1345e1172ce379658cecfd3f7d70"></a>
<h2 class="memtitle"><span class="permalink"><a href="#adabd1345e1172ce379658cecfd3f7d70">◆ </a></span>exif_mem_unref()</h2>
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<td class="memname">void exif_mem_unref </td>
<td>(</td>
<td class="paramtype"><a class="el" href="exif-mem_8h.html#aab8aacbc0ed6f11a1f022b7b1bf4750e">ExifMem</a> * </td>
<td class="paramname"><em>mem</em></td><td>)</td>
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<p>Unrefcount an ExifMem. </p>
<p>If the refcount reaches 0, the ExifMem is freed </p>
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