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+ </style><link rel="home" href="index.html" title="Operation Captive Reference Manual"><link rel="up" href="ch01.html" title="Operation Captive"><link rel="previous" href="captive-apiref-macros.html" title="macros"><link rel="next" href="captive-apiref-ps-reactos.html" title="ps_reactos"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><table class="navigation" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"><tr valign="middle"><td><a accesskey="p" href="captive-apiref-macros.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td><td><a accesskey="u" href="ch01.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td><td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td><th width="100%" align="center">Operation Captive Reference Manual</th><td><a accesskey="n" href="captive-apiref-ps-reactos.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td></tr></table><div class="refentry" lang="en"><a name="captive-apiref-mm"></a><div class="titlepage"></div><div class="refnamediv"><h2>mm</h2><p>mm — </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
+
+
+
+gint <a href="captive-apiref-mm.html#captive-flProtect-to-mmap-prot">captive_flProtect_to_mmap_prot</a> (ULONG flProtect);
+gboolean <a href="captive-apiref-mm.html#captive-mmap-map-new">captive_mmap_map_new</a> (gconstpointer addr,
+ size_t len,
+ int mmap_prot);
+gint <a href="captive-apiref-mm.html#captive-mmap-map-get">captive_mmap_map_get</a> (gconstpointer addr);
+gboolean <a href="captive-apiref-mm.html#captive-mmap-map-set">captive_mmap_map_set</a> (gconstpointer addr,
+ int mmap_prot);
+</pre></div><div class="refsect1" lang="en"><h2>Description</h2><p>
+
+</p></div><div class="refsect1" lang="en"><h2>Details</h2><div class="refsect2" lang="en"><h3><a name="captive-flProtect-to-mmap-prot"></a>captive_flProtect_to_mmap_prot ()</h3><pre class="programlisting">gint captive_flProtect_to_mmap_prot (ULONG flProtect);</pre><p>
+Map reactos flProtect to mprotect(2)-compatible "prot" argument.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>flProtect</tt></i> :</span></td><td> reactos compatible constant such as <tt>PAGE_READWRITE</tt>.
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> mmap(2) compatible <i><tt>prot</tt></i> argument.
+</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><h3><a name="captive-mmap-map-new"></a>captive_mmap_map_new ()</h3><pre class="programlisting">gboolean captive_mmap_map_new (gconstpointer addr,
+ size_t len,
+ int mmap_prot);</pre><p>
+Initialize the protection map for the specified memory block.
+Any existing protections in the specified block are forbidden.
+</p><p>
+This function does not do any mprotect(2) style, it just stores
+the settings for the later <tt>OR</tt> operations by MmSetPageProtect().
+Caller is responsibel to set the same protections as the given <i><tt>mmap_prot</tt></i>.</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>addr</tt></i> :</span></td><td> <tt>PAGE_SIZE</tt> aligned address of memory block.
+<tt>NULL</tt> value is forbidden.
+</td></tr><tr><td><span class="term"><i><tt>len</tt></i> :</span></td><td> <tt>PAGE_SIZE</tt> aligned length of memory block.
+Value <tt>0</tt> is permitted. Value <tt>-1</tt> is forbidden.
+</td></tr><tr><td><span class="term"><i><tt>mmap_prot</tt></i> :</span></td><td> Protections for the memory block as specified by <i><tt>prot</tt></i> of mprotect(2).
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> <tt>TRUE</tt> if the protection storage was successful.
+</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><h3><a name="captive-mmap-map-get"></a>captive_mmap_map_get ()</h3><pre class="programlisting">gint captive_mmap_map_get (gconstpointer addr);</pre><p>
+Query the protection settings at <i><tt>addr</tt></i> address.
+The given <i><tt>addr</tt></i> block of <tt>PAGE_SIZE</tt> must be already initialized
+by <a href="captive-apiref-mm.html#captive-mmap-map-new">captive_mmap_map_new</a>().</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>addr</tt></i> :</span></td><td> <tt>PAGE_SIZE</tt> aligned address of memory block.
+<tt>NULL</tt> value is forbidden.
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> Protections of the page as specified by <i><tt>prot</tt></i> of mprotect(2)
+if successful. Value <tt>-1</tt> if failed.
+</td></tr></tbody></table></div></div><hr><div class="refsect2" lang="en"><h3><a name="captive-mmap-map-set"></a>captive_mmap_map_set ()</h3><pre class="programlisting">gboolean captive_mmap_map_set (gconstpointer addr,
+ int mmap_prot);</pre><p>
+Set the protection settings at <i><tt>addr</tt></i> address.
+The given <i><tt>addr</tt></i> block of <tt>PAGE_SIZE</tt> must be already initialized
+by <a href="captive-apiref-mm.html#captive-mmap-map-new">captive_mmap_map_new</a>().</p><p>
+
+</p><div class="variablelist"><table border="0"><col align="left" valign="top"><tbody><tr><td><span class="term"><i><tt>addr</tt></i> :</span></td><td> <tt>PAGE_SIZE</tt> aligned address of memory block.
+<tt>NULL</tt> value is forbidden.
+</td></tr><tr><td><span class="term"><i><tt>mmap_prot</tt></i> :</span></td><td> Protections for the memory block as specified by <i><tt>prot</tt></i> of mprotect(2).
+</td></tr><tr><td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td><td> <tt>TRUE</tt> if the protections were successfuly set.
+</td></tr></tbody></table></div></div></div></div><table class="navigation" width="100%" summary="Navigation footer" cellpadding="2" cellspacing="0"><tr valign="middle"><td align="left"><a accesskey="p" href="captive-apiref-macros.html"><b><< macros</b></a></td><td align="right"><a accesskey="n" href="captive-apiref-ps-reactos.html"><b>ps_reactos >></b></a></td></tr></table></body></html>
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