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<a href="#gnome-keyring-Non-pageable-Memory.description" class="shortcut">Description</a></span>
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<a name="gnome-keyring-Non-pageable-Memory"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gnome-keyring-Non-pageable-Memory.top_of_page"></a>Non-pageable Memory</span></h2>
<p>Non-pageable Memory — Secure Non-pageable Memory</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gnome-keyring-Non-pageable-Memory.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-new" title="gnome_keyring_memory_new()">gnome_keyring_memory_new</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-alloc" title="gnome_keyring_memory_alloc ()">gnome_keyring_memory_alloc</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-try-alloc" title="gnome_keyring_memory_try_alloc ()">gnome_keyring_memory_try_alloc</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-realloc" title="gnome_keyring_memory_realloc ()">gnome_keyring_memory_realloc</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-try-realloc" title="gnome_keyring_memory_try_realloc ()">gnome_keyring_memory_try_realloc</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-free" title="gnome_keyring_memory_free ()">gnome_keyring_memory_free</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
</td>
<td class="function_name">
<a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-is-secure" title="gnome_keyring_memory_is_secure ()">gnome_keyring_memory_is_secure</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-strdup" title="gnome_keyring_memory_strdup ()">gnome_keyring_memory_strdup</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gnome-keyring-Non-pageable-Memory.description"></a><h2>Description</h2>
<div class="warning">All of these APIs are deprecated. Use
<a class="ulink" href="" target="_top">libsecret</a>
instead.</div>
<p>Normal allocated memory can be paged to disk at the whim of the operating system.
This can be a serious problem for sensitive information like passwords, keys and secrets.</p>
<p>GNOME Keyring holds passwords in non-pageable, or locked memory. This happens
both in the daemon and in the library. This is only possible if the OS contains
support for it.</p>
<p>These functions allow applications to use to hold passwords and other
sensitive information.</p>
</div>
<div class="refsect1">
<a name="gnome-keyring-Non-pageable-Memory.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gnome-keyring-memory-new"></a><h3>gnome_keyring_memory_new()</h3>
<pre class="programlisting">#define gnome_keyring_memory_new(type, n_objects)</pre>
<div class="warning">
<p><code class="literal">gnome_keyring_memory_new</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <code class="function">gcr_secure_memory_alloc()</code> instead.</p>
</div>
<p>Allocate objects in non-pageable gnome-keyring memory.</p>
<div class="refsect3">
<a name="gnome-keyring-memory-new.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>type</p></td>
<td class="parameter_description"><p>The C type of the objects to allocate</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>n_objects</p></td>
<td class="parameter_description"><p>The number of objects to allocate.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-keyring-memory-new.returns"></a><h4>Returns</h4>
<p> The new block of memory.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-keyring-memory-alloc"></a><h3>gnome_keyring_memory_alloc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>
gnome_keyring_memory_alloc (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> sz</code></em>);</pre>
<div class="warning">
<p><code class="literal">gnome_keyring_memory_alloc</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <code class="function">gcr_secure_memory_alloc()</code> instead.</p>
</div>
<p>Allocate a block of gnome-keyring non-pageable memory.</p>
<p>If non-pageable memory cannot be allocated then normal memory will be
returned.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gnome-keyring-memory-alloc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>sz</p></td>
<td class="parameter_description"><p>The new desired size of the memory block.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-keyring-memory-alloc.returns"></a><h4>Returns</h4>
<p> The new memory block which should be freed
with <a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-free" title="gnome_keyring_memory_free ()"><code class="function">gnome_keyring_memory_free()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-keyring-memory-try-alloc"></a><h3>gnome_keyring_memory_try_alloc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>
gnome_keyring_memory_try_alloc (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> sz</code></em>);</pre>
<div class="warning">
<p><code class="literal">gnome_keyring_memory_try_alloc</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <code class="function">gcr_secure_memory_try_alloc()</code> instead.</p>
</div>
<p>Allocate a block of gnome-keyring non-pageable memory.</p>
<p>If non-pageable memory cannot be allocated, then <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gnome-keyring-memory-try-alloc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>sz</p></td>
<td class="parameter_description"><p>The new desired size of the memory block.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-keyring-memory-try-alloc.returns"></a><h4>Returns</h4>
<p> The new block, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if memory cannot be
allocated. The memory block should be freed with <a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-free" title="gnome_keyring_memory_free ()"><code class="function">gnome_keyring_memory_free()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-keyring-memory-realloc"></a><h3>gnome_keyring_memory_realloc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>
gnome_keyring_memory_realloc (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> p</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> sz</code></em>);</pre>
<div class="warning">
<p><code class="literal">gnome_keyring_memory_realloc</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <code class="function">gcr_secure_memory_realloc()</code> instead.</p>
</div>
<p>Reallocate a block of gnome-keyring non-pageable memory.</p>
<p>Glib memory is also reallocated correctly. If called with a null pointer,
then a new block of memory is allocated. If called with a zero size,
then the block of memory is freed.</p>
<p>If non-pageable memory cannot be allocated then normal memory will be
returned.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gnome-keyring-memory-realloc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>p</p></td>
<td class="parameter_description"><p> The pointer to reallocate or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to allocate a new
block. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>sz</p></td>
<td class="parameter_description"><p>The new desired size of the memory block, or 0 to free the memory.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-keyring-memory-realloc.returns"></a><h4>Returns</h4>
<p> The new block, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if the block was
freed. The memory block should be freed with <a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-free" title="gnome_keyring_memory_free ()"><code class="function">gnome_keyring_memory_free()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-keyring-memory-try-realloc"></a><h3>gnome_keyring_memory_try_realloc ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="returnvalue">gpointer</span></a>
gnome_keyring_memory_try_realloc (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> p</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gulong"><span class="type">gulong</span></a> sz</code></em>);</pre>
<div class="warning">
<p><code class="literal">gnome_keyring_memory_try_realloc</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <code class="function">gcr_secure_memory_try_realloc()</code> instead.</p>
</div>
<p>Reallocate a block of gnome-keyring non-pageable memory.</p>
<p>Glib memory is also reallocated correctly when passed to this function.
If called with a null pointer, then a new block of memory is allocated.
If called with a zero size, then the block of memory is freed.</p>
<p>If memory cannot be allocated, <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> is returned and the original block
of memory remains intact.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gnome-keyring-memory-try-realloc.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>p</p></td>
<td class="parameter_description"><p> The pointer to reallocate or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> to allocate a new block. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>sz</p></td>
<td class="parameter_description"><p>The new desired size of the memory block.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-keyring-memory-try-realloc.returns"></a><h4>Returns</h4>
<p> The new block, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if memory cannot be
allocated. The memory block should be freed with <a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-free" title="gnome_keyring_memory_free ()"><code class="function">gnome_keyring_memory_free()</code></a>. </p>
<p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-keyring-memory-free"></a><h3>gnome_keyring_memory_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gnome_keyring_memory_free (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> p</code></em>);</pre>
<div class="warning">
<p><code class="literal">gnome_keyring_memory_free</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <code class="function">gcr_secure_memory_free()</code> instead.</p>
</div>
<p>Free a block of gnome-keyring non-pageable memory.</p>
<p>Glib memory is also freed correctly when passed to this function. If called
with a null pointer then no action is taken.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gnome-keyring-memory-free.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>p</p></td>
<td class="parameter_description"><p>The pointer to the beginning of the block of memory to free.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-keyring-memory-is-secure"></a><h3>gnome_keyring_memory_is_secure ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gnome_keyring_memory_is_secure (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> p</code></em>);</pre>
<div class="warning">
<p><code class="literal">gnome_keyring_memory_is_secure</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <code class="function">gcr_secure_memory_is_secure()</code> instead.</p>
</div>
<p>Check if a pointer is in non-pageable memory allocated by gnome-keyring.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gnome-keyring-memory-is-secure.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>p</p></td>
<td class="parameter_description"><p>The pointer to check</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-keyring-memory-is-secure.returns"></a><h4>Returns</h4>
<p> Whether the memory is non-pageable or not</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="gnome-keyring-memory-strdup"></a><h3>gnome_keyring_memory_strdup ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
gnome_keyring_memory_strdup (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *str</code></em>);</pre>
<div class="warning">
<p><code class="literal">gnome_keyring_memory_strdup</code> is deprecated and should not be used in newly-written code.</p>
<p>Use <code class="function">gcr_secure_memory_strdup()</code> instead.</p>
</div>
<p>Copy a string into non-pageable memory. If the input string is <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>, then
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> will be returned.</p>
<p><span class="annotation">[<acronym title="Exposed in C code, not necessarily available in other languages."><span class="acronym">skip</span></acronym>]</span></p>
<div class="refsect3">
<a name="gnome-keyring-memory-strdup.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>str</p></td>
<td class="parameter_description"><p>The null terminated string to copy</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gnome-keyring-memory-strdup.returns"></a><h4>Returns</h4>
<p> The copied string, should be freed with <a class="link" href="gnome-keyring-Non-pageable-Memory.html#gnome-keyring-memory-free" title="gnome_keyring_memory_free ()"><code class="function">gnome_keyring_memory_free()</code></a></p>
</div>
</div>
</div>
<div class="refsect1">
<a name="gnome-keyring-Non-pageable-Memory.other_details"></a><h2>Types and Values</h2>
</div>
</div>
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