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<div id="projectname">Xbase64<span id="projectnumber"> 4.0.1</span>
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<div id="projectbrief">C++ Library for handling Xbase (DBF) format type files</div>
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<a href="xbblkread_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/* xbblkread.h</span></div>
<div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"></span> </div>
<div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment">XBase64 Software Library</span></div>
<div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"></span> </div>
<div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment">Copyright (c) 1997,2003,2014,2022 Gary A Kunkel</span></div>
<div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"></span> </div>
<div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment">The xb64 software library is covered under the terms of the GPL Version 3, 2007 license.</span></div>
<div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"></span> </div>
<div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment">Email Contact:</span></div>
<div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"></span> </div>
<div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> XDB-devel@lists.sourceforge.net</span></div>
<div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> XDB-users@lists.sourceforge.net</span></div>
<div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"></span> </div>
<div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment">*/</span></div>
<div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span> </div>
<div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="preprocessor">#ifndef __XB_BLKREAD_H__</span></div>
<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="preprocessor">#define __XB_BLKREAD_H__</span></div>
<div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span> </div>
<div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacexb.html">xb</a>{</div>
<div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#ifdef XB_BLOCKREAD_SUPPORT</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span> </div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="keyword">class </span>XBDLLEXPORT xbBlockRead {</div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> xbBlockRead( <a class="code hl_variable" href="namespacexb.html#ab2eae4b4732466698a7fdd89d77ba53b">xbDbf</a> * d );</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> ~xbBlockRead();</div>
<div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span><span class="preprocessor"> #ifdef XB_DEBUG_SUPPORT</span></div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> <span class="keywordtype">void</span> DumpReadBlockInternals();</div>
<div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span><span class="preprocessor"> #endif</span></div>
<div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> </div>
<div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> xbInt16 Init( xbUInt32 ulBlkSize = 0 );</div>
<div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> xbUInt32 GetBlockFirstRecNo() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> xbUInt32 GetBlockRecCnt() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> xbUInt32 GetBlockSize() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> xbInt16 GetRecord( xbUInt32 ulRecNo ); <span class="comment">// retrieve a data record from a block to RecBuf</span></div>
<div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> xbInt16 SetBlockSize( xbUInt32 ulBlkSize );</div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span> </div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> xbInt16 GetBlockForRecNo( xbUInt32 ulRecNo ); <span class="comment">// retrieve block from disk for a given record number</span></div>
<div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordtype">char</span> *pBlock; <span class="comment">// block pointer</span></div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> xbUInt32 ulBlkSize; <span class="comment">// block size in bytes</span></div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> xbUInt32 ulFirstBlkRec; <span class="comment">// first recod number in the block</span></div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> xbUInt32 ulRecCnt; <span class="comment">// number of records in block</span></div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> xbUInt32 ulMaxRecs; <span class="comment">// max number of records block can handle</span></div>
<div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> <a class="code hl_typedef" href="namespacexb.html#ab1a750481dd487f0d384aa1d200dff0f">xbBool</a> bEof; <span class="comment">// EOF flag</span></div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <a class="code hl_variable" href="namespacexb.html#ab2eae4b4732466698a7fdd89d77ba53b">xbDbf</a> *dbf; <span class="comment">// reference to associated dbf file</span></div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span><span class="comment">// xbXBase *xbase; // reference to main xbXBase structure</span></div>
<div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> time_t tFmTime; <span class="comment">// file modify time at time of block read</span></div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> </div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span>};</div>
<div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span><span class="preprocessor">#endif </span><span class="comment">// XB_BLOCKREAD</span></div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span>} <span class="comment">/* namespace */</span></div>
<div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span><span class="preprocessor">#endif </span><span class="comment">/* __XB_BLOCKREAD_H__ */</span><span class="preprocessor"></span></div>
<div class="ttc" id="anamespacexb_html"><div class="ttname"><a href="namespacexb.html">xb</a></div><div class="ttdef"><b>Definition:</b> xbdate.cpp:19</div></div>
<div class="ttc" id="anamespacexb_html_ab1a750481dd487f0d384aa1d200dff0f"><div class="ttname"><a href="namespacexb.html#ab1a750481dd487f0d384aa1d200dff0f">xb::xbBool</a></div><div class="ttdeci">short int xbBool</div><div class="ttdef"><b>Definition:</b> xbtypes.h:24</div></div>
<div class="ttc" id="anamespacexb_html_ab2eae4b4732466698a7fdd89d77ba53b"><div class="ttname"><a href="namespacexb.html#ab2eae4b4732466698a7fdd89d77ba53b">xb::xbDbf</a></div><div class="ttdeci">class XBDLLEXPORT xbDbf</div><div class="ttdef"><b>Definition:</b> xbtblmgr.h:28</div></div>
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