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<title>GDAL: GDALRasterBlock Class Reference</title>
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<h1>GDALRasterBlock Class Reference</h1><!-- doxytag: class="GDALRasterBlock" -->
<p><a href="classGDALRasterBlock-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa5e071e528f05012704288aff2c47412"></a><!-- doxytag: member="GDALRasterBlock::GDALRasterBlock" ref="aa5e071e528f05012704288aff2c47412" args="(GDALRasterBand *, int, int)" -->
</td><td class="memItemRight" valign="bottom"><b>GDALRasterBlock</b> (<a class="el" href="classGDALRasterBand.html">GDALRasterBand</a> *, int, int)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a4154b18e8ba2f6021589a963b747703c"></a><!-- doxytag: member="GDALRasterBlock::Internalize" ref="a4154b18e8ba2f6021589a963b747703c" args="(void)" -->
CPLErr </td><td class="memItemRight" valign="bottom"><b>Internalize</b> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a65353139b253f445da2b78328a86825c"></a><!-- doxytag: member="GDALRasterBlock::Touch" ref="a65353139b253f445da2b78328a86825c" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><b>Touch</b> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a19f8e4a3f739930d4084ffd300b1547a"></a><!-- doxytag: member="GDALRasterBlock::MarkDirty" ref="a19f8e4a3f739930d4084ffd300b1547a" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><b>MarkDirty</b> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="aa6927dfceaff6d2bc4641e2196f8213f"></a><!-- doxytag: member="GDALRasterBlock::MarkClean" ref="aa6927dfceaff6d2bc4641e2196f8213f" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><b>MarkClean</b> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ae9d6c925d852c6ac779c20d1b590124e"></a><!-- doxytag: member="GDALRasterBlock::AddLock" ref="ae9d6c925d852c6ac779c20d1b590124e" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><b>AddLock</b> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2dcbecaa862637b94e850360614fba40"></a><!-- doxytag: member="GDALRasterBlock::DropLock" ref="a2dcbecaa862637b94e850360614fba40" args="(void)" -->
void </td><td class="memItemRight" valign="bottom"><b>DropLock</b> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a2f8b3efad25604fe7d2b13e5ea6b8db9"></a><!-- doxytag: member="GDALRasterBlock::Detach" ref="a2f8b3efad25604fe7d2b13e5ea6b8db9" args="()" -->
void </td><td class="memItemRight" valign="bottom"><b>Detach</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad5db817de54332f4e457481af2bb33c5"></a><!-- doxytag: member="GDALRasterBlock::Write" ref="ad5db817de54332f4e457481af2bb33c5" args="()" -->
CPLErr </td><td class="memItemRight" valign="bottom"><b>Write</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a15386fbfa2a201ba247c2405c16685fd"></a><!-- doxytag: member="GDALRasterBlock::GetDataType" ref="a15386fbfa2a201ba247c2405c16685fd" args="()" -->
<a class="el" href="gdal_8h.html#a22e22ce0a55036a96f652765793fb7a4">GDALDataType</a> </td><td class="memItemRight" valign="bottom"><b>GetDataType</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a045b765b1ae4bc3ddfbcda456a91c06a"></a><!-- doxytag: member="GDALRasterBlock::GetXOff" ref="a045b765b1ae4bc3ddfbcda456a91c06a" args="()" -->
int </td><td class="memItemRight" valign="bottom"><b>GetXOff</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7c3a71546644a6e5c0b9c76d4d638e70"></a><!-- doxytag: member="GDALRasterBlock::GetYOff" ref="a7c3a71546644a6e5c0b9c76d4d638e70" args="()" -->
int </td><td class="memItemRight" valign="bottom"><b>GetYOff</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afce709342075d2ec17b55754075c596b"></a><!-- doxytag: member="GDALRasterBlock::GetXSize" ref="afce709342075d2ec17b55754075c596b" args="()" -->
int </td><td class="memItemRight" valign="bottom"><b>GetXSize</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ad7e10d7a26c09d5ea5c1e1b382e568f7"></a><!-- doxytag: member="GDALRasterBlock::GetYSize" ref="ad7e10d7a26c09d5ea5c1e1b382e568f7" args="()" -->
int </td><td class="memItemRight" valign="bottom"><b>GetYSize</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a72dc56234fd82ccf9aff40f433e3b99c"></a><!-- doxytag: member="GDALRasterBlock::GetDirty" ref="a72dc56234fd82ccf9aff40f433e3b99c" args="()" -->
int </td><td class="memItemRight" valign="bottom"><b>GetDirty</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ab25627e267d9cfb200ffb361b45a5afd"></a><!-- doxytag: member="GDALRasterBlock::GetLockCount" ref="ab25627e267d9cfb200ffb361b45a5afd" args="()" -->
int </td><td class="memItemRight" valign="bottom"><b>GetLockCount</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="ac3fa05f830e0382a35e88f90d6ca0836"></a><!-- doxytag: member="GDALRasterBlock::GetDataRef" ref="ac3fa05f830e0382a35e88f90d6ca0836" args="(void)" -->
void * </td><td class="memItemRight" valign="bottom"><b>GetDataRef</b> (void)</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a7954aafb62ed494bfe97a599be1b14ac"></a><!-- doxytag: member="GDALRasterBlock::GetBand" ref="a7954aafb62ed494bfe97a599be1b14ac" args="()" -->
<a class="el" href="classGDALRasterBand.html">GDALRasterBand</a> * </td><td class="memItemRight" valign="bottom"><b>GetBand</b> ()</td></tr>
<tr><td colspan="2"><h2>Static Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="afb5517b5a7604a59f731263bb4293909"></a><!-- doxytag: member="GDALRasterBlock::FlushCacheBlock" ref="afb5517b5a7604a59f731263bb4293909" args="()" -->
static int </td><td class="memItemRight" valign="bottom"><b>FlushCacheBlock</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a1ad7e8973a7b130da0865bdfaa20acdc"></a><!-- doxytag: member="GDALRasterBlock::Verify" ref="a1ad7e8973a7b130da0865bdfaa20acdc" args="()" -->
static void </td><td class="memItemRight" valign="bottom"><b>Verify</b> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top">static int </td><td class="memItemRight" valign="bottom"><a class="el" href="classGDALRasterBlock.html#ab99effc3e5508f8e8cdcc49392d47bcc">SafeLockBlock</a> (<a class="el" href="classGDALRasterBlock.html">GDALRasterBlock</a> **)</td></tr>
</table>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ab99effc3e5508f8e8cdcc49392d47bcc"></a><!-- doxytag: member="GDALRasterBlock::SafeLockBlock" ref="ab99effc3e5508f8e8cdcc49392d47bcc" args="(GDALRasterBlock **)" -->
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<td class="memname">int GDALRasterBlock::SafeLockBlock </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classGDALRasterBlock.html">GDALRasterBlock</a> ** </td>
<td class="paramname"> <em>ppBlock</em></td>
<td> ) </td>
<td><code> [static]</code></td>
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</table>
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<div class="memdoc">
<p>Safely lock block.</p>
<p>This method locks a <a class="el" href="classGDALRasterBlock.html">GDALRasterBlock</a> (and touches it) in a thread-safe manner. The global block cache mutex is held while locking the block, in order to avoid race conditions with other threads that might be trying to expire the block at the same time. The block pointer may be safely NULL, in which case this method does nothing.</p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>ppBlock</em> </td><td>Pointer to the block pointer to try and lock/touch. </td></tr>
</table>
</dd>
</dl>
<p>Referenced by <a class="el" href="gdalrasterband_8cpp_source.html#l01068">GDALRasterBand::TryGetLockedBlockRef()</a>.</p>
</div>
</div>
<hr/>The documentation for this class was generated from the following files:<ul>
<li><a class="el" href="gdal__priv_8h_source.html">gdal_priv.h</a></li>
<li>gdalrasterblock.cpp</li>
</ul>
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