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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=11"/> <meta name="generator" content="Doxygen 1.9.4"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>FreeTDS API: src/dblib/buffering.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="search/search.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="search/searchdata.js"></script> <script type="text/javascript" src="search/search.js"></script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr id="projectrow"> <td id="projectalign"> <div id="projectname">FreeTDS API </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.9.4 --> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ var searchBox = new SearchBox("searchBox", "search",'Search','.html'); /* @license-end */ </script> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ $(function() { initMenu('',true,false,'search.php','Search'); $(document).ready(function() { init_search(); }); }); /* @license-end */ </script> <div id="main-nav"></div> <!-- window showing the filter options --> <div id="MSearchSelectWindow" onmouseover="return searchBox.OnSearchSelectShow()" onmouseout="return searchBox.OnSearchSelectHide()" onkeydown="return searchBox.OnSearchSelectKey(event)"> </div> <!-- iframe showing the search results (closed by default) --> <div id="MSearchResultsWindow"> <iframe src="javascript:void(0)" frameborder="0" name="MSearchResults" id="MSearchResults"> </iframe> </div> <div id="nav-path" class="navpath"> <ul> <li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_a40d3d1dfafadc5a5d3063931c3db36e.html">dblib</a></li> </ul> </div> </div><!-- top --> <div class="header"> <div class="headertitle"><div class="title">buffering.h</div></div> </div><!--header--> <div class="contents"> <div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"><a class="line" href="a00590.html"> 1</a></span><span class="keyword">typedef</span> <span class="keyword">struct </span><a class="code hl_struct" href="a00590.html">dblib_buffer_row</a> {</div> <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"><a class="line" href="a00590.html#ad49b82677ae277e5d5b0038f522da293"> 3</a></span> <a class="code hl_struct" href="a01158.html">TDSRESULTINFO</a> *<a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>;</div> <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"><a class="line" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0"> 5</a></span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> *<a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a>;</div> <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"><a class="line" href="a00590.html#a015599345b266045d8bd3fac731e4675"> 7</a></span> DBINT <a class="code hl_variable" href="a00590.html#a015599345b266045d8bd3fac731e4675">row</a>;</div> <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"><a class="line" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a"> 9</a></span> TDS_INT *<a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a>;</div> <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span>} <a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a>;</div> <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span> </div> <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="keyword">static</span> <span class="keywordtype">void</span> buffer_struct_print(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf);</div> <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="keyword">static</span> RETCODE buffer_save_row(<a class="code hl_struct" href="a00918.html">DBPROCESS</a> *dbproc);</div> <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="keyword">static</span> <a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a>* buffer_row_address(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> * buf, <span class="keywordtype">int</span> idx);</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">#if ENABLE_EXTRA_CHECKS</span></div> <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="keyword">static</span> <span class="keywordtype">void</span> buffer_check_row_empty(<a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a> *row)</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> assert(row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a> == NULL);</div> <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span> assert(row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a> == NULL);</div> <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span> assert(row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a> == NULL);</div> <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> assert(row-><a class="code hl_variable" href="a00590.html#a015599345b266045d8bd3fac731e4675">row</a> == 0);</div> <div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span>}</div> <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div> <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="keyword">static</span> <span class="keywordtype">void</span> buffer_check(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf)</div> <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span>{</div> <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span> <span class="keywordtype">int</span> i;</div> <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div> <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> <span class="comment">/* no buffering */</span></div> <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> <span class="keywordflow">if</span> (buf->capacity == 0 || buf->capacity == 1) {</div> <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span> assert(buf->head == 0);</div> <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span> assert(buf->tail == 0 || buf->tail == 1);</div> <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> assert(buf->capacity == 1 || buf->rows == NULL);</div> <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> <span class="keywordflow">return</span>;</div> <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> }</div> <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div> <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> assert(buf->capacity > 0);</div> <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> assert(buf->head >= 0);</div> <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> assert(buf->tail >= 0);</div> <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> assert(buf->head < buf->capacity);</div> <div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span> assert(buf->tail <= buf->capacity);</div> <div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span> </div> <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> <span class="comment">/* check empty */</span></div> <div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> <span class="keywordflow">if</span> (buf->tail == buf->capacity) {</div> <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> assert(buf->head == 0);</div> <div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> <span class="keywordflow">for</span> (i = 0; buf->rows && i < buf->capacity; ++i)</div> <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> buffer_check_row_empty(&buf->rows[i]);</div> <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> <span class="keywordflow">return</span>;</div> <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span> }</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> <span class="keywordflow">if</span> (buf->rows == NULL)</div> <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keywordflow">return</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> <span class="comment">/* check filled part */</span></div> <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> i = buf->tail;</div> <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> <span class="keywordflow">do</span> {</div> <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> assert(i >= 0 && i < buf->capacity);</div> <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> assert(buf->rows[i].<a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a> != NULL);</div> <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> assert(buf->rows[i].<a class="code hl_variable" href="a00590.html#a015599345b266045d8bd3fac731e4675">row</a> > 0);</div> <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> assert(buf->rows[i].<a class="code hl_variable" href="a00590.html#a015599345b266045d8bd3fac731e4675">row</a> <= buf->received);</div> <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span> ++i;</div> <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span> <span class="keywordflow">if</span> (i == buf->capacity)</div> <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> i = 0;</div> <div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> } <span class="keywordflow">while</span> (i != buf->head);</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> <span class="comment">/* check empty part */</span></div> <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> <span class="keywordflow">if</span> (buf->head != buf->tail) {</div> <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> i = buf->head;</div> <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> <span class="keywordflow">do</span> {</div> <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span> assert(i >= 0 && i < buf->capacity);</div> <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> buffer_check_row_empty(&buf->rows[i]);</div> <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> ++i;</div> <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keywordflow">if</span> (i == buf->capacity)</div> <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> i = 0;</div> <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> } <span class="keywordflow">while</span> (i != buf->tail);</div> <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> }</div> <div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span>}</div> <div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span><span class="preprocessor">#define BUFFER_CHECK(buf) buffer_check(buf)</span></div> <div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span><span class="preprocessor">#else</span></div> <div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span><span class="preprocessor">#define BUFFER_CHECK(buf) do {} while(0)</span></div> <div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span>buffer_count(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf)</div> <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span>{</div> <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span> <span class="keywordflow">return</span> (buf->head > buf->tail) ?</div> <div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span> buf->head - buf->tail : <span class="comment">/* |...TddddH....| */</span></div> <div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span> buf->capacity - (buf->tail - buf->head); <span class="comment">/* |ddddH....Tddd| */</span></div> <div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span>}</div> <div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span> </div> <div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span>buffer_is_full(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf)</div> <div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span>{</div> <div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span> <span class="keywordflow">return</span> buf->capacity == buffer_count(buf) && buf->capacity > 1;</div> <div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span>}</div> <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span> </div> <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span><span class="preprocessor">#ifndef NDEBUG</span></div> <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span>buffer_index_valid(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf, <span class="keywordtype">int</span> idx)</div> <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span>{</div> <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span> <span class="keywordflow">if</span> (buf->tail <= buf->head)</div> <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> <span class="keywordflow">if</span> (buf->head <= idx && idx <= buf->tail)</div> <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span> <span class="keywordflow">return</span> 1;</div> <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span> </div> <div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span> <span class="keywordflow">if</span> (0 <= idx && idx <= buf->head)</div> <div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keywordflow">return</span> 1;</div> <div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> </div> <div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keywordflow">if</span> (buf->tail <= idx && idx < buf->capacity)</div> <div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keywordflow">return</span> 1;</div> <div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span><span class="preprocessor">#if 0 </span></div> <div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> printf(<span class="stringliteral">"buffer_index_valid: idx = %d\n"</span>, idx);</div> <div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> buffer_struct_print(buf);</div> <div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> <span class="keywordflow">return</span> 0; </div> <div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span>}</div> <div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> </div> <div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span>buffer_free_row(<a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a> *row)</div> <div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span>{</div> <div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">if</span> (row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a>)</div> <div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> TDS_ZERO_FREE(row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a>);</div> <div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keywordflow">if</span> (row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a>) {</div> <div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> tds_free_row(row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>, row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a>);</div> <div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a> = NULL;</div> <div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> }</div> <div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> tds_free_results(row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>);</div> <div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a> = NULL;</div> <div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> row-><a class="code hl_variable" href="a00590.html#a015599345b266045d8bd3fac731e4675">row</a> = 0;</div> <div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span>}</div> <div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div> <div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span><span class="comment">/*</span></div> <div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span><span class="comment"> * Buffer is freed at slightly odd points, whenever</span></div> <div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span><span class="comment"> * capacity changes: </span></div> <div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span><span class="comment"> * </span></div> <div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span><span class="comment"> * 1. When setting capacity, to release prior buffer. </span></div> <div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span><span class="comment"> * 2. By dbresults. When called the second time, it has to </span></div> <div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span><span class="comment"> * release prior storage because the new resultset will have</span></div> <div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span><span class="comment"> * a different width. </span></div> <div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span><span class="comment"> * 3. By dbclose(), else open/close/open would leak. </span></div> <div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span><span class="comment"> */</span></div> <div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span>buffer_free(<a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf)</div> <div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span>{</div> <div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> <span class="keywordflow">if</span> (buf->rows != NULL) {</div> <div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> <span class="keywordtype">int</span> i;</div> <div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> <span class="keywordflow">for</span> (i = 0; i < buf->capacity; ++i)</div> <div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> buffer_free_row(&buf->rows[i]);</div> <div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> TDS_ZERO_FREE(buf->rows);</div> <div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> }</div> <div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span>}</div> <div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> </div> <div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span><span class="comment">/*</span></div> <div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span><span class="comment"> * When no rows are currently buffered (and the buffer is allocated)</span></div> <div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span><span class="comment"> * set the indices to their initial positions.</span></div> <div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span><span class="comment"> */</span></div> <div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span>buffer_reset(<a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf)</div> <div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span>{</div> <div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> buf->head = 0;</div> <div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> buf->current = buf->tail = buf->capacity;</div> <div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span>}</div> <div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> </div> <div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span>buffer_idx_increment(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf, <span class="keywordtype">int</span> idx)</div> <div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span>{</div> <div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> <span class="keywordflow">if</span> (++idx >= buf->capacity) { </div> <div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> idx = 0;</div> <div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> }</div> <div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> <span class="keywordflow">return</span> idx;</div> <div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span>}</div> <div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> </div> <div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span><span class="keyword">static</span> <a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a>*</div> <div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span>buffer_row_address(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> * buf, <span class="keywordtype">int</span> idx)</div> <div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span>{</div> <div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00218" name="l00218"></a><span class="lineno"> 218</span> <span class="keywordflow">if</span> (idx < 0 || idx >= buf->capacity) {</div> <div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> printf(<span class="stringliteral">"idx is %d:\n"</span>, idx);</div> <div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> buffer_struct_print(buf);</div> <div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> <span class="keywordflow">return</span> NULL;</div> <div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> }</div> <div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> </div> <div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span> <span class="keywordflow">return</span> &(buf->rows[idx]);</div> <div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span>}</div> <div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span> </div> <div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span><span class="keyword">static</span> DBINT</div> <div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span>buffer_idx2row(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf, <span class="keywordtype">int</span> idx)</div> <div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span>{</div> <div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> <span class="keywordflow">return</span> buffer_row_address(buf, idx)-><a class="code hl_variable" href="a00590.html#a015599345b266045d8bd3fac731e4675">row</a>;</div> <div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span>}</div> <div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> </div> <div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span>buffer_row2idx(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf, <span class="keywordtype">int</span> row_number)</div> <div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span>{</div> <div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> <span class="keywordtype">int</span> i = buf->tail;</div> <div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span><span class="preprocessor">#ifndef NDEBUG</span></div> <div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> <span class="keywordtype">int</span> ii = 0;</div> <div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> </div> <div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> <span class="keywordflow">if</span> (i == buf->capacity) {</div> <div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> assert (buf->head == 0);</div> <div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> <span class="keywordflow">return</span> -1; <span class="comment">/* no rows buffered */</span></div> <div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> }</div> <div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> </div> <div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> <span class="comment">/* </span></div> <div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span><span class="comment"> * March through the buffers from tail to head, stop if we find our row. </span></div> <div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span><span class="comment"> * A full queue is indicated by tail == head (which means we can't write).</span></div> <div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span><span class="comment"> */</span></div> <div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span> <span class="keywordflow">do</span> {</div> <div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span> <span class="keywordflow">if</span> (buffer_idx2row(buf, i) == row_number)</div> <div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span> <span class="keywordflow">return</span> i;</div> <div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> </div> <div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> assert(ii++ < buf->capacity); <span class="comment">/* prevent infinite loop */</span></div> <div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> </div> <div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> i = buffer_idx_increment(buf, i);</div> <div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> } <span class="keywordflow">while</span> (i != buf->head);</div> <div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> </div> <div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keywordflow">return</span> -1;</div> <div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span>}</div> <div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> </div> <div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span>buffer_delete_rows(<a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> * buf, <span class="keywordtype">int</span> count)</div> <div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span>{</div> <div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> <span class="keywordtype">int</span> i;</div> <div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> </div> <div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> <span class="keywordflow">if</span> (count < 0 || count > buffer_count(buf)) {</div> <div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> count = buffer_count(buf);</div> <div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> }</div> <div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> </div> <div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> <span class="keywordflow">for</span> (i=0; i < count; i++) {</div> <div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> <span class="keywordflow">if</span> (buf->tail < buf->capacity)</div> <div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> buffer_free_row(&buf->rows[buf->tail]);</div> <div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> buf->tail = buffer_idx_increment(buf, buf->tail);</div> <div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="comment">/* </span></div> <div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span><span class="comment"> * If deleting rows from the buffer catches the tail to the head, </span></div> <div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span><span class="comment"> * return to the initial position. Otherwise, it will look full.</span></div> <div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span><span class="comment"> */</span></div> <div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> <span class="keywordflow">if</span> (buf->tail == buf->head) {</div> <div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> buffer_reset(buf);</div> <div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> <span class="keywordflow">break</span>;</div> <div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> }</div> <div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> }</div> <div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span><span class="preprocessor">#if 0</span></div> <div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span> buffer_struct_print(buf);</div> <div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00301" name="l00301"></a><span class="lineno"> 301</span>}</div> <div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> </div> <div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span>buffer_transfer_bound_data(<a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf, TDS_INT res_type, TDS_INT compute_id, <a class="code hl_struct" href="a00918.html">DBPROCESS</a> * dbproc, <span class="keywordtype">int</span> idx)</div> <div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span>{</div> <div class="line"><a id="l00309" name="l00309"></a><span class="lineno"> 309</span> <span class="keywordtype">int</span> i;</div> <div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> BYTE *src;</div> <div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <span class="keyword">const</span> <a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a> *row;</div> <div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> </div> <div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> <a class="code hl_function" href="a00416.html#ab45c291105027e69836002e1dd586141">tdsdump_log</a>(TDS_DBG_FUNC, <span class="stringliteral">"buffer_transfer_bound_data(%p %d %d %p %d)\n"</span>, buf, res_type, compute_id, dbproc, idx);</div> <div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> assert(buffer_index_valid(buf, idx));</div> <div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> </div> <div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> row = buffer_row_address(buf, idx);</div> <div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> assert(row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>);</div> <div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> </div> <div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span> <span class="keywordflow">for</span> (i = 0; i < row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>->num_cols; i++) {</div> <div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> TDS_SERVER_TYPE srctype;</div> <div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span> DBINT srclen;</div> <div class="line"><a id="l00323" name="l00323"></a><span class="lineno"> 323</span> <a class="code hl_struct" href="a01150.html">TDSCOLUMN</a> *curcol = row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>->columns[i];</div> <div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> </div> <div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> <span class="keywordflow">if</span> (row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a>)</div> <div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span> curcol-><a class="code hl_variable" href="a01150.html#ada14ba479a67762fc1bef78910ef4beb">column_cur_size</a> = row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a>[i];</div> <div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> </div> <div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span> srclen = curcol-><a class="code hl_variable" href="a01150.html#ada14ba479a67762fc1bef78910ef4beb">column_cur_size</a>;</div> <div class="line"><a id="l00329" name="l00329"></a><span class="lineno"> 329</span> </div> <div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> <span class="keywordflow">if</span> (curcol->column_nullbind) {</div> <div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> <span class="keywordflow">if</span> (srclen < 0) {</div> <div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span> *(DBINT *)(curcol->column_nullbind) = -1;</div> <div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> } <span class="keywordflow">else</span> {</div> <div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span> *(DBINT *)(curcol->column_nullbind) = 0;</div> <div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span> }</div> <div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> }</div> <div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <span class="keywordflow">if</span> (!curcol->column_varaddr)</div> <div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> <span class="keywordflow">continue</span>;</div> <div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> </div> <div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> <span class="keywordflow">if</span> (srclen <= 0) {</div> <div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span> <span class="keywordflow">if</span> (srclen == 0 || !curcol->column_nullbind)</div> <div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> <a class="code hl_function" href="a00158.html#aea6a865806d454280126de940478c214">dbgetnull</a>(dbproc, curcol->column_bindtype, curcol->column_bindlen,</div> <div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span> (BYTE *) curcol->column_varaddr);</div> <div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span> <span class="keywordflow">continue</span>;</div> <div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> }</div> <div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> </div> <div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> srctype = <a class="code hl_function" href="a00416.html#a0383d5dcb629582266a442f0f0dbd13a">tds_get_conversion_type</a>(curcol-><a class="code hl_variable" href="a01150.html#a7f08ecedc5835a4e81129c6b2b493947">column_type</a>, curcol-><a class="code hl_variable" href="a01150.html#a2c2756c00a1099c82d4cfa4da2894672">column_size</a>);</div> <div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> </div> <div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> <span class="keywordflow">if</span> (row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a>)</div> <div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> src = &row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a>[curcol->column_data - row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>->current_row];</div> <div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="keywordflow">else</span></div> <div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> src = curcol->column_data;</div> <div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="keywordflow">if</span> (is_blob_col(curcol))</div> <div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> src = (BYTE *) ((<a class="code hl_struct" href="a01130.html">TDSBLOB</a> *) src)->textvalue;</div> <div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> </div> <div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> copy_data_to_host_var(dbproc, srctype, src, srclen,</div> <div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> (BYTE *) curcol->column_varaddr, curcol->column_bindlen,</div> <div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> curcol->column_bindtype, (DBINT*) curcol->column_nullbind);</div> <div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> }</div> <div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> </div> <div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="comment">/*</span></div> <div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span><span class="comment"> * This function always bumps current. Usually, it's called </span></div> <div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span><span class="comment"> * by dbnextrow(), so bumping current is a pretty obvious choice. </span></div> <div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span><span class="comment"> * It can also be called by dbgetrow(), but that function also </span></div> <div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span><span class="comment"> * causes the bump. If you call dbgetrow() for row N, a subsequent</span></div> <div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span><span class="comment"> * call to dbnextrow() yields N+1. </span></div> <div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span><span class="comment"> */</span></div> <div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span> buf->current = buffer_idx_increment(buf, buf->current);</div> <div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> </div> <div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span>} <span class="comment">/* end buffer_transfer_bound_data() */</span></div> <div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span> </div> <div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span><span class="keyword">static</span> <span class="keywordtype">void</span> </div> <div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span>buffer_struct_print(<span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf)</div> <div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span>{</div> <div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> assert(buf);</div> <div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> </div> <div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> printf(<span class="stringliteral">"\t%d rows in buffer\n"</span>, buffer_count(buf));</div> <div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> </div> <div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> printf(<span class="stringliteral">"\thead = %d\t"</span>, buf->head);</div> <div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> printf(<span class="stringliteral">"\ttail = %d\t"</span>, buf->tail);</div> <div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> printf(<span class="stringliteral">"\tcurrent = %d\n"</span>, buf->current);</div> <div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> printf(<span class="stringliteral">"\tcapacity = %d\t"</span>, buf->capacity);</div> <div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> printf(<span class="stringliteral">"\thead row number = %d\n"</span>, buf->received);</div> <div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span>}</div> <div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> </div> <div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span><span class="comment">/* * * Functions called only by public db-lib API take DBPROCESS* * */</span></div> <div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> </div> <div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span>buffer_current_index(<span class="keyword">const</span> <a class="code hl_struct" href="a00918.html">DBPROCESS</a> *dbproc)</div> <div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span>{</div> <div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> <span class="keyword">const</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf = &dbproc->row_buf;</div> <div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span><span class="preprocessor">#if 0</span></div> <div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> buffer_struct_print(buf);</div> <div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span><span class="preprocessor">#endif</span></div> <div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> <span class="keywordflow">if</span> (buf->capacity <= 1) <span class="comment">/* no buffering */</span></div> <div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> <span class="keywordflow">return</span> -1;</div> <div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> <span class="keywordflow">if</span> (buf->current == buf->head || buf->current == buf->capacity)</div> <div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> <span class="keywordflow">return</span> -1;</div> <div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> </div> <div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> assert(buf->current >= 0);</div> <div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> assert(buf->current < buf->capacity);</div> <div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> </div> <div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> <span class="keywordflow">if</span>( buf->tail < buf->head) {</div> <div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> assert(buf->tail < buf->current);</div> <div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> assert(buf->current < buf->head);</div> <div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span> } <span class="keywordflow">else</span> {</div> <div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> <span class="keywordflow">if</span> (buf->current > buf->head)</div> <div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span> assert(buf->current > buf->tail);</div> <div class="line"><a id="l00425" name="l00425"></a><span class="lineno"> 425</span> }</div> <div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="keywordflow">return</span> buf->current;</div> <div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span>}</div> <div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> </div> <div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span><span class="comment">/*</span></div> <div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span><span class="comment"> * Normally called by dbsetopt() to prepare for buffering</span></div> <div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span><span class="comment"> * Called with nrows == 0 by dbopen to safely set buf->rows to NULL. </span></div> <div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span><span class="comment"> */</span></div> <div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span>buffer_set_capacity(<a class="code hl_struct" href="a00918.html">DBPROCESS</a> *dbproc, <span class="keywordtype">int</span> nrows)</div> <div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span>{</div> <div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf = &dbproc->row_buf;</div> <div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> </div> <div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> buffer_free(buf);</div> <div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> </div> <div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> memset(buf, 0, <span class="keyword">sizeof</span>(<a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a>));</div> <div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> </div> <div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> <span class="keywordflow">if</span> (0 == nrows) {</div> <div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> buf->capacity = 1;</div> <div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> <span class="keywordflow">return</span>;</div> <div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> }</div> <div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span> </div> <div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> assert(0 < nrows);</div> <div class="line"><a id="l00449" name="l00449"></a><span class="lineno"> 449</span> </div> <div class="line"><a id="l00450" name="l00450"></a><span class="lineno"> 450</span> buf->capacity = nrows;</div> <div class="line"><a id="l00451" name="l00451"></a><span class="lineno"> 451</span> BUFFER_CHECK(buf);</div> <div class="line"><a id="l00452" name="l00452"></a><span class="lineno"> 452</span>}</div> <div class="line"><a id="l00453" name="l00453"></a><span class="lineno"> 453</span> </div> <div class="line"><a id="l00454" name="l00454"></a><span class="lineno"> 454</span><span class="comment">/*</span></div> <div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span><span class="comment"> * Called only by dbresults(); capacity must be >= 1. </span></div> <div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span><span class="comment"> * Sybase's documents say dbresults() cannot return FAIL if the prior calls worked, </span></div> <div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span><span class="comment"> * which is a little strange, because (for FreeTDS, at least), dbresults</span></div> <div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span><span class="comment"> * is when we learn about the result set's width. Without that information, we</span></div> <div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span><span class="comment"> * can't allocate memory for the buffer. But if we *fail* to allocate memory, </span></div> <div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span><span class="comment"> * we're not to communicate it back to the caller? </span></div> <div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span><span class="comment"> */</span></div> <div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span><span class="keyword">static</span> <span class="keywordtype">void</span></div> <div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span>buffer_alloc(<a class="code hl_struct" href="a00918.html">DBPROCESS</a> *dbproc)</div> <div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span>{</div> <div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf = &dbproc->row_buf;</div> <div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> </div> <div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> <span class="comment">/* Call this function only after setting capacity. */</span></div> <div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> </div> <div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> assert(buf);</div> <div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span> assert(buf->capacity > 0);</div> <div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> assert(buf->rows == NULL);</div> <div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span> </div> <div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span> buf->rows = tds_new0(<a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a>, buf->capacity);</div> <div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> </div> <div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> assert(buf->rows);</div> <div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> </div> <div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> buffer_reset(buf);</div> <div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> </div> <div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> buf->received = 0;</div> <div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span>}</div> <div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> </div> <div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span><span class="keyword">static</span> <span class="keywordtype">int</span></div> <div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span>buffer_add_row(<a class="code hl_struct" href="a00918.html">DBPROCESS</a> *dbproc, <a class="code hl_struct" href="a01158.html">TDSRESULTINFO</a> *resinfo)</div> <div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span>{</div> <div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf = &dbproc->row_buf;</div> <div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> <a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a> *row;</div> <div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> <span class="keywordtype">int</span> i;</div> <div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> </div> <div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> assert(buf->capacity >= 0);</div> <div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> </div> <div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> <span class="keywordflow">if</span> (buffer_is_full(buf))</div> <div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> <span class="keywordflow">return</span> -1;</div> <div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> </div> <div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> row = buffer_row_address(buf, buf->head);</div> <div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span> </div> <div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> <span class="comment">/* bump the row number, write it, and move the data to head */</span></div> <div class="line"><a id="l00501" name="l00501"></a><span class="lineno"> 501</span> <span class="keywordflow">if</span> (row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>) {</div> <div class="line"><a id="l00502" name="l00502"></a><span class="lineno"> 502</span> tds_free_row(row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>, row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a>);</div> <div class="line"><a id="l00503" name="l00503"></a><span class="lineno"> 503</span> tds_free_results(row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>);</div> <div class="line"><a id="l00504" name="l00504"></a><span class="lineno"> 504</span> }</div> <div class="line"><a id="l00505" name="l00505"></a><span class="lineno"> 505</span> row-><a class="code hl_variable" href="a00590.html#a015599345b266045d8bd3fac731e4675">row</a> = ++buf->received;</div> <div class="line"><a id="l00506" name="l00506"></a><span class="lineno"> 506</span> ++resinfo->ref_count;</div> <div class="line"><a id="l00507" name="l00507"></a><span class="lineno"> 507</span> row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a> = resinfo;</div> <div class="line"><a id="l00508" name="l00508"></a><span class="lineno"> 508</span> row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a> = NULL;</div> <div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span> <span class="keywordflow">if</span> (row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a>)</div> <div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span> free(row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a>);</div> <div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a> = tds_new0(TDS_INT, resinfo->num_cols);</div> <div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> <span class="keywordflow">for</span> (i = 0; i < resinfo->num_cols; ++i)</div> <div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> row-><a class="code hl_variable" href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">sizes</a>[i] = resinfo->columns[i]-><a class="code hl_variable" href="a01150.html#ada14ba479a67762fc1bef78910ef4beb">column_cur_size</a>;</div> <div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> </div> <div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> <span class="comment">/* initial condition is head == 0 and tail == capacity */</span></div> <div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> if (buf->tail == buf->capacity) {</div> <div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <span class="comment">/* bumping this tail will set it to zero */</span></div> <div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> assert(buf->head == 0);</div> <div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> buf->tail = 0;</div> <div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> }</div> <div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> </div> <div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> <span class="comment">/* update current, bump the head */</span></div> <div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> buf->current = buf->head;</div> <div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> buf->head = buffer_idx_increment(buf, buf->head);</div> <div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> </div> <div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> <span class="keywordflow">return</span> buf->current;</div> <div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span>}</div> <div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> </div> <div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span><span class="keyword">static</span> RETCODE</div> <div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span>buffer_save_row(<a class="code hl_struct" href="a00918.html">DBPROCESS</a> *dbproc)</div> <div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span>{</div> <div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> <a class="code hl_struct" href="a00890.html">DBPROC_ROWBUF</a> *buf = &dbproc->row_buf;</div> <div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> <a class="code hl_struct" href="a00590.html">DBLIB_BUFFER_ROW</a> *row;</div> <div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> <span class="keywordtype">int</span> idx = buf->head - 1;</div> <div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> </div> <div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> <span class="keywordflow">if</span> (buf->capacity <= 1)</div> <div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> <span class="keywordflow">return</span> SUCCEED;</div> <div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> </div> <div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> <span class="keywordflow">if</span> (idx < 0)</div> <div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> idx = buf->capacity - 1;</div> <div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> <span class="keywordflow">if</span> (idx >= 0 && idx < buf->capacity) {</div> <div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> row = &buf->rows[idx];</div> <div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> </div> <div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> <span class="keywordflow">if</span> (row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a> && !row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a>) {</div> <div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> row-><a class="code hl_variable" href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">row_data</a> = row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>->current_row;</div> <div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> <a class="code hl_function" href="a00541.html#ga1224fb9277112dc2ce12531d2b73b145">tds_alloc_row</a>(row-><a class="code hl_variable" href="a00590.html#ad49b82677ae277e5d5b0038f522da293">resinfo</a>);</div> <div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> }</div> <div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> }</div> <div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> </div> <div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> <span class="keywordflow">return</span> SUCCEED;</div> <div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span>}</div> <div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> </div> <div class="ttc" id="aa00158_html_aea6a865806d454280126de940478c214"><div class="ttname"><a href="a00158.html#aea6a865806d454280126de940478c214">dbgetnull</a></div><div class="ttdeci">RETCODE dbgetnull(DBPROCESS *dbproc, int bindtype, int varlen, BYTE *varaddr)</div><div class="ttdef"><b>Definition:</b> dblib.c:529</div></div> <div class="ttc" id="aa00416_html_a0383d5dcb629582266a442f0f0dbd13a"><div class="ttname"><a href="a00416.html#a0383d5dcb629582266a442f0f0dbd13a">tds_get_conversion_type</a></div><div class="ttdeci">TDS_SERVER_TYPE tds_get_conversion_type(TDS_SERVER_TYPE srctype, int colsize)</div><div class="ttdoc">Return type suitable for conversions (convert all nullable types to fixed type)</div><div class="ttdef"><b>Definition:</b> tds_types.h:125</div></div> <div class="ttc" id="aa00416_html_ab45c291105027e69836002e1dd586141"><div class="ttname"><a href="a00416.html#ab45c291105027e69836002e1dd586141">tdsdump_log</a></div><div class="ttdeci">void tdsdump_log(const char *file, unsigned int level_line, const char *fmt,...)</div><div class="ttdoc">Write a message to the debug log.</div><div class="ttdef"><b>Definition:</b> log.c:396</div></div> <div class="ttc" id="aa00541_html_ga1224fb9277112dc2ce12531d2b73b145"><div class="ttname"><a href="a00541.html#ga1224fb9277112dc2ce12531d2b73b145">tds_alloc_row</a></div><div class="ttdeci">TDSRET tds_alloc_row(TDSRESULTINFO *res_info)</div><div class="ttdoc">Allocate space for row store return NULL on out of memory.</div><div class="ttdef"><b>Definition:</b> mem.c:524</div></div> <div class="ttc" id="aa00590_html"><div class="ttname"><a href="a00590.html">dblib_buffer_row</a></div><div class="ttdef"><b>Definition:</b> buffering.h:1</div></div> <div class="ttc" id="aa00590_html_a015599345b266045d8bd3fac731e4675"><div class="ttname"><a href="a00590.html#a015599345b266045d8bd3fac731e4675">dblib_buffer_row::row</a></div><div class="ttdeci">DBINT row</div><div class="ttdoc">row number</div><div class="ttdef"><b>Definition:</b> buffering.h:7</div></div> <div class="ttc" id="aa00590_html_a5a057d6bbecfac1a85a9fbcd09eaf3a0"><div class="ttname"><a href="a00590.html#a5a057d6bbecfac1a85a9fbcd09eaf3a0">dblib_buffer_row::row_data</a></div><div class="ttdeci">unsigned char * row_data</div><div class="ttdoc">row data, NULL for resinfo->current_row</div><div class="ttdef"><b>Definition:</b> buffering.h:5</div></div> <div class="ttc" id="aa00590_html_abe1aa9f8ea96dda1400654813e68130a"><div class="ttname"><a href="a00590.html#abe1aa9f8ea96dda1400654813e68130a">dblib_buffer_row::sizes</a></div><div class="ttdeci">TDS_INT * sizes</div><div class="ttdoc">save old sizes</div><div class="ttdef"><b>Definition:</b> buffering.h:9</div></div> <div class="ttc" id="aa00590_html_ad49b82677ae277e5d5b0038f522da293"><div class="ttname"><a href="a00590.html#ad49b82677ae277e5d5b0038f522da293">dblib_buffer_row::resinfo</a></div><div class="ttdeci">TDSRESULTINFO * resinfo</div><div class="ttdoc">pointer to result informations</div><div class="ttdef"><b>Definition:</b> buffering.h:3</div></div> <div class="ttc" id="aa00890_html"><div class="ttname"><a href="a00890.html">DBPROC_ROWBUF</a></div><div class="ttdef"><b>Definition:</b> dblib.h:52</div></div> <div class="ttc" id="aa00918_html"><div class="ttname"><a href="a00918.html">tds_dblib_dbprocess</a></div><div class="ttdef"><b>Definition:</b> dblib.h:123</div></div> <div class="ttc" id="aa01130_html"><div class="ttname"><a href="a01130.html">tds_blob</a></div><div class="ttdoc">Information about blobs (e.g.</div><div class="ttdef"><b>Definition:</b> tds.h:593</div></div> <div class="ttc" id="aa01150_html"><div class="ttname"><a href="a01150.html">tds_column</a></div><div class="ttdoc">Metadata about columns in regular and compute rows.</div><div class="ttdef"><b>Definition:</b> tds.h:689</div></div> <div class="ttc" id="aa01150_html_a2c2756c00a1099c82d4cfa4da2894672"><div class="ttname"><a href="a01150.html#a2c2756c00a1099c82d4cfa4da2894672">tds_column::column_size</a></div><div class="ttdeci">TDS_INT column_size</div><div class="ttdoc">maximun size of data.</div><div class="ttdef"><b>Definition:</b> tds.h:694</div></div> <div class="ttc" id="aa01150_html_a7f08ecedc5835a4e81129c6b2b493947"><div class="ttname"><a href="a01150.html#a7f08ecedc5835a4e81129c6b2b493947">tds_column::column_type</a></div><div class="ttdeci">TDS_SERVER_TYPE column_type</div><div class="ttdoc">This type can be different from wire type because conversion (e.g.</div><div class="ttdef"><b>Definition:</b> tds.h:696</div></div> <div class="ttc" id="aa01150_html_ada14ba479a67762fc1bef78910ef4beb"><div class="ttname"><a href="a01150.html#ada14ba479a67762fc1bef78910ef4beb">tds_column::column_cur_size</a></div><div class="ttdeci">TDS_INT column_cur_size</div><div class="ttdoc">size written in variable (ie: char, text, binary).</div><div class="ttdef"><b>Definition:</b> tds.h:736</div></div> <div class="ttc" id="aa01158_html"><div class="ttname"><a href="a01158.html">tds_result_info</a></div><div class="ttdoc">Hold information for any results.</div><div class="ttdef"><b>Definition:</b> tds.h:769</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small> Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.4 </small></address> </body> </html>