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<p>Transfer memory handling.
<a href="#details">More...</a></p>
<div class="textblock"><code>#include &quot;<a class="el" href="types_8h_source.html">../types.h</a>&quot;</code><br />
<code>#include &quot;<a class="el" href="svc_8h_source.html">../kernel/svc.h</a>&quot;</code><br />
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<p><a href="tmem_8h_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
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Data Structures</h2></td></tr>
<tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct &#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="structTransferMemory.html">TransferMemory</a></td></tr>
<tr class="memdesc:"><td class="mdescLeft">&#160;</td><td class="mdescRight">Transfer memory information structure. <a href="structTransferMemory.html#details">More...</a><br /></td></tr>
<tr class="separator:"><td class="memSeparator" colspan="2">&#160;</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="func-members" name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a6ed36c8b072834ce0450531c5b0730d1" id="r_a6ed36c8b072834ce0450531c5b0730d1"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tmem_8h.html#a6ed36c8b072834ce0450531c5b0730d1">tmemCreate</a> (<a class="el" href="structTransferMemory.html">TransferMemory</a> *t, size_t size, <a class="el" href="svc_8h.html#a1474fa581c530fcdc28ca0a11770200c">Permission</a> perm)</td></tr>
<tr class="memdesc:a6ed36c8b072834ce0450531c5b0730d1"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a transfer memory object. <br /></td></tr>
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<tr class="memitem:a76c801699c473fc232c7f315e4debb51" id="r_a76c801699c473fc232c7f315e4debb51"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tmem_8h.html#a76c801699c473fc232c7f315e4debb51">tmemCreateFromMemory</a> (<a class="el" href="structTransferMemory.html">TransferMemory</a> *t, void *buf, size_t size, <a class="el" href="svc_8h.html#a1474fa581c530fcdc28ca0a11770200c">Permission</a> perm)</td></tr>
<tr class="memdesc:a76c801699c473fc232c7f315e4debb51"><td class="mdescLeft">&#160;</td><td class="mdescRight">Creates a transfer memory object from existing memory. <br /></td></tr>
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<tr class="memitem:a71f02408ca63722f70f68ee67f922d1d" id="r_a71f02408ca63722f70f68ee67f922d1d"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tmem_8h.html#a71f02408ca63722f70f68ee67f922d1d">tmemLoadRemote</a> (<a class="el" href="structTransferMemory.html">TransferMemory</a> *t, <a class="el" href="types_8h.html#ab6d744c6b5de129f12937e482dc674fb">Handle</a> handle, size_t size, <a class="el" href="svc_8h.html#a1474fa581c530fcdc28ca0a11770200c">Permission</a> perm)</td></tr>
<tr class="memdesc:a71f02408ca63722f70f68ee67f922d1d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Loads a transfer memory object coming from a remote process. <br /></td></tr>
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<tr class="memdesc:a57ea58042b63493cbf981aa22d9bcff2"><td class="mdescLeft">&#160;</td><td class="mdescRight">Maps a transfer memory object. <br /></td></tr>
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<tr class="memitem:a081a44fe34a79f96d6bcfd5871c8401b" id="r_a081a44fe34a79f96d6bcfd5871c8401b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tmem_8h.html#a081a44fe34a79f96d6bcfd5871c8401b">tmemUnmap</a> (<a class="el" href="structTransferMemory.html">TransferMemory</a> *t)</td></tr>
<tr class="memdesc:a081a44fe34a79f96d6bcfd5871c8401b"><td class="mdescLeft">&#160;</td><td class="mdescRight">Unmaps a transfer memory object. <br /></td></tr>
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<tr class="memitem:a9b46597b02b4d44fcebd854869177a24" id="r_a9b46597b02b4d44fcebd854869177a24"><td class="memItemLeft" align="right" valign="top">static void *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tmem_8h.html#a9b46597b02b4d44fcebd854869177a24">tmemGetAddr</a> (<a class="el" href="structTransferMemory.html">TransferMemory</a> *t)</td></tr>
<tr class="memdesc:a9b46597b02b4d44fcebd854869177a24"><td class="mdescLeft">&#160;</td><td class="mdescRight">Retrieves the mapped address of a transfer memory object. <br /></td></tr>
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<tr class="memdesc:ac93c2d42f03162ac284e697b49f0bc64"><td class="mdescLeft">&#160;</td><td class="mdescRight">Closes handle of a transfer memory object. <br /></td></tr>
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<tr class="memdesc:aecec2057d8fdd990a77821d2c672e6d3"><td class="mdescLeft">&#160;</td><td class="mdescRight">Waits until source backing memory permissions match perm. <br /></td></tr>
<tr class="separator:aecec2057d8fdd990a77821d2c672e6d3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ad3456850e1ecfe2b9eac9a5d95aab064" id="r_ad3456850e1ecfe2b9eac9a5d95aab064"><td class="memItemLeft" align="right" valign="top"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a>&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="tmem_8h.html#ad3456850e1ecfe2b9eac9a5d95aab064">tmemClose</a> (<a class="el" href="structTransferMemory.html">TransferMemory</a> *t)</td></tr>
<tr class="memdesc:ad3456850e1ecfe2b9eac9a5d95aab064"><td class="mdescLeft">&#160;</td><td class="mdescRight">Frees up resources used by a transfer memory object, unmapping and closing handles, etc. <br /></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Transfer memory handling. </p>
<dl class="section author"><dt>Author</dt><dd>plutoo </dd></dl>
<dl class="section copyright"><dt>Copyright</dt><dd>libnx Authors </dd></dl>
<dl class="section remark"><dt>Remarks</dt><dd>Transfer memory differs from shared memory in the fact that the user process (as opposed to the kernel) allocates and owns its backing memory. </dd></dl>
</div><h2 class="groupheader">Function Documentation</h2>
<a id="ad3456850e1ecfe2b9eac9a5d95aab064" name="ad3456850e1ecfe2b9eac9a5d95aab064"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ad3456850e1ecfe2b9eac9a5d95aab064">&#9670;&#160;</a></span>tmemClose()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> tmemClose </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Frees up resources used by a transfer memory object, unmapping and closing handles, etc. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Result code. </dd></dl>
</div>
</div>
<a id="ac93c2d42f03162ac284e697b49f0bc64" name="ac93c2d42f03162ac284e697b49f0bc64"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ac93c2d42f03162ac284e697b49f0bc64">&#9670;&#160;</a></span>tmemCloseHandle()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> tmemCloseHandle </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Closes handle of a transfer memory object. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Result code. </dd></dl>
</div>
</div>
<a id="a6ed36c8b072834ce0450531c5b0730d1" name="a6ed36c8b072834ce0450531c5b0730d1"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6ed36c8b072834ce0450531c5b0730d1">&#9670;&#160;</a></span>tmemCreate()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> tmemCreate </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="svc_8h.html#a1474fa581c530fcdc28ca0a11770200c">Permission</a>&#160;</td>
<td class="paramname"><em>perm</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Creates a transfer memory object. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure that will be filled in. </td></tr>
<tr><td class="paramname">size</td><td>Size of the transfer memory object to create. </td></tr>
<tr><td class="paramname">perm</td><td>Permissions with which to protect the transfer memory in the local process. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Result code. </dd></dl>
</div>
</div>
<a id="a76c801699c473fc232c7f315e4debb51" name="a76c801699c473fc232c7f315e4debb51"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a76c801699c473fc232c7f315e4debb51">&#9670;&#160;</a></span>tmemCreateFromMemory()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> tmemCreateFromMemory </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void *&#160;</td>
<td class="paramname"><em>buf</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="svc_8h.html#a1474fa581c530fcdc28ca0a11770200c">Permission</a>&#160;</td>
<td class="paramname"><em>perm</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Creates a transfer memory object from existing memory. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure that will be filled in. </td></tr>
<tr><td class="paramname">buf</td><td>Pointer to a page-aligned buffer. </td></tr>
<tr><td class="paramname">size</td><td>Size of the transfer memory object to create. </td></tr>
<tr><td class="paramname">perm</td><td>Permissions with which to protect the transfer memory in the local process. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Result code. </dd></dl>
</div>
</div>
<a id="a9b46597b02b4d44fcebd854869177a24" name="a9b46597b02b4d44fcebd854869177a24"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a9b46597b02b4d44fcebd854869177a24">&#9670;&#160;</a></span>tmemGetAddr()</h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">static void * tmemGetAddr </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span><span class="mlabel">static</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Retrieves the mapped address of a transfer memory object. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Mapped address of the transfer memory object. </dd></dl>
</div>
</div>
<a id="a71f02408ca63722f70f68ee67f922d1d" name="a71f02408ca63722f70f68ee67f922d1d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a71f02408ca63722f70f68ee67f922d1d">&#9670;&#160;</a></span>tmemLoadRemote()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void tmemLoadRemote </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="types_8h.html#ab6d744c6b5de129f12937e482dc674fb">Handle</a>&#160;</td>
<td class="paramname"><em>handle</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">size_t&#160;</td>
<td class="paramname"><em>size</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="svc_8h.html#a1474fa581c530fcdc28ca0a11770200c">Permission</a>&#160;</td>
<td class="paramname"><em>perm</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Loads a transfer memory object coming from a remote process. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure which will be filled in. </td></tr>
<tr><td class="paramname">handle</td><td>Handle of the transfer memory object. </td></tr>
<tr><td class="paramname">size</td><td>Size of the transfer memory object that is being loaded. </td></tr>
<tr><td class="paramname">perm</td><td>Permissions which the transfer memory is expected to have in the process that owns the memory. </td></tr>
</table>
</dd>
</dl>
<dl class="section warning"><dt>Warning</dt><dd>This is a privileged operation; in normal circumstances applications shouldn't use this function. </dd></dl>
</div>
</div>
<a id="a57ea58042b63493cbf981aa22d9bcff2" name="a57ea58042b63493cbf981aa22d9bcff2"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a57ea58042b63493cbf981aa22d9bcff2">&#9670;&#160;</a></span>tmemMap()</h2>
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<tr>
<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> tmemMap </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Maps a transfer memory object. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Result code. </dd></dl>
<dl class="section warning"><dt>Warning</dt><dd>This is a privileged operation; in normal circumstances applications cannot use this function. </dd></dl>
</div>
</div>
<a id="a081a44fe34a79f96d6bcfd5871c8401b" name="a081a44fe34a79f96d6bcfd5871c8401b"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a081a44fe34a79f96d6bcfd5871c8401b">&#9670;&#160;</a></span>tmemUnmap()</h2>
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> tmemUnmap </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em></td><td>)</td>
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</div><div class="memdoc">
<p>Unmaps a transfer memory object. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Result code. </dd></dl>
<dl class="section warning"><dt>Warning</dt><dd>This is a privileged operation; in normal circumstances applications cannot use this function. </dd></dl>
</div>
</div>
<a id="aecec2057d8fdd990a77821d2c672e6d3" name="aecec2057d8fdd990a77821d2c672e6d3"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aecec2057d8fdd990a77821d2c672e6d3">&#9670;&#160;</a></span>tmemWaitForPermission()</h2>
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<table class="memname">
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<td class="memname"><a class="el" href="types_8h.html#ad1be2721625a17f1be47fac918032afe">Result</a> tmemWaitForPermission </td>
<td>(</td>
<td class="paramtype"><a class="el" href="structTransferMemory.html">TransferMemory</a> *&#160;</td>
<td class="paramname"><em>t</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="svc_8h.html#a1474fa581c530fcdc28ca0a11770200c">Permission</a>&#160;</td>
<td class="paramname"><em>perm</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Waits until source backing memory permissions match perm. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">t</td><td>Transfer memory information structure. </td></tr>
<tr><td class="paramname">perm</td><td>Permissions which the source backing memory is expected to have before return. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Result code. </dd></dl>
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