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<a href="XrdSfsAio_8hh.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef __SFS_AIO_H__</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor"></span><span class="preprocessor">#define __SFS_AIO_H__</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="preprocessor"></span><span class="comment">/******************************************************************************/</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">/* */</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">/* X r d S f s A i o . h h */</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">/* */</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">/* (c) 2004 by the Board of Trustees of the Leland Stanford, Jr., University */</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">/* Produced by Andrew Hanushevsky for Stanford University under contract */</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">/* DE-AC02-76-SFO0515 with the Department of Energy */</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">/* */</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">/* This file is part of the XRootD software suite. */</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">/* */</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">/* XRootD is free software: you can redistribute it and/or modify it under */</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">/* the terms of the GNU Lesser General Public License as published by the */</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment">/* Free Software Foundation, either version 3 of the License, or (at your */</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">/* option) any later version. */</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">/* */</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">/* XRootD is distributed in the hope that it will be useful, but WITHOUT */</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">/* License for more details. */</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">/* */</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">/* You should have received a copy of the GNU Lesser General Public License */</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">/* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">/* */</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">/* The copyright holder's institutional names and contributor's names may not */</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">/* be used to endorse or promote products derived from this software without */</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">/* specific prior written permission of the institution or contributor. */</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">/******************************************************************************/</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <signal.h></span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor">#include <sys/types.h></span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// _POSIX_ASYNCHRONOUS_IO, if it is defined, is in unistd.h.</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor">#include <unistd.h></span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#ifdef _POSIX_ASYNCHRONOUS_IO</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"></span><span class="preprocessor">#ifdef __APPLE__</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="preprocessor"></span><span class="preprocessor">#include <AvailabilityMacros.h></span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#include <sys/aio.h></span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor"></span><span class="preprocessor">#include <aio.h></span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor"></span><span class="preprocessor">#else</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="code" href="structaiocb.html"> 44</a></span> <span class="preprocessor"></span><span class="keyword">struct </span><a class="code" href="structaiocb.html">aiocb</a> { <span class="comment">// Minimal structure to avoid compiler errors</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"><a class="code" href="structaiocb.html#ad6b6e95e6e4a79487f7e6edaae26003f"> 45</a></span>  <span class="keywordtype">int</span> <a class="code" href="structaiocb.html#ad6b6e95e6e4a79487f7e6edaae26003f">aio_fildes</a>;</div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="code" href="structaiocb.html#aff27b3b547b913152659b27fe05aed88"> 46</a></span>  <span class="keywordtype">void</span> *<a class="code" href="structaiocb.html#aff27b3b547b913152659b27fe05aed88">aio_buf</a>;</div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="code" href="structaiocb.html#a6b4f8a1d05ed5444784389734d71cda7"> 47</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="structaiocb.html#a6b4f8a1d05ed5444784389734d71cda7">aio_nbytes</a>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"><a class="code" href="structaiocb.html#a1e74b350a9ca189fa7c25b61c5cede6c"> 48</a></span>  off_t <a class="code" href="structaiocb.html#a1e74b350a9ca189fa7c25b61c5cede6c">aio_offset</a>;</div>
<div class="line"><a name="l00049"></a><span class="lineno"><a class="code" href="structaiocb.html#a7a8f63c080c8602ebcacbb86e9f5547e"> 49</a></span>  <span class="keywordtype">int</span> <a class="code" href="structaiocb.html#a7a8f63c080c8602ebcacbb86e9f5547e">aio_reqprio</a>;</div>
<div class="line"><a name="l00050"></a><span class="lineno"><a class="code" href="structaiocb.html#a7065f3086beb9cdffc525c1d09949268"> 50</a></span>  <span class="keyword">struct </span>sigevent <a class="code" href="structaiocb.html#a7065f3086beb9cdffc525c1d09949268">aio_sigevent</a>;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  };</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment">// The XrdSfsAIO class is meant to be derived. This object provides the</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment">// basic interface to handle AIO control block queues not processing.</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">//</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="classXrdSfsAio.html"> 57</a></span> <span class="keyword">class </span><a class="code" href="classXrdSfsAio.html">XrdSfsAio</a></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> {</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">public</span>:</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"><a class="code" href="classXrdSfsAio.html#ae83b485651e6fe1663643acc7a4984b7"> 61</a></span> <span class="keyword">struct </span><a class="code" href="structaiocb.html">aiocb</a> <a class="code" href="classXrdSfsAio.html#ae83b485651e6fe1663643acc7a4984b7">sfsAio</a>;</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="code" href="classXrdSfsAio.html#a1252f31b5d71363e30d2438768c86361"> 63</a></span> ssize_t <a class="code" href="classXrdSfsAio.html#a1252f31b5d71363e30d2438768c86361">Result</a>; <span class="comment">// If >= 0 valid result; else is -errno</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"><a class="code" href="classXrdSfsAio.html#a14aeb24139bcb6ede63629991e169267"> 65</a></span> <span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="classXrdSfsAio.html#a14aeb24139bcb6ede63629991e169267">TIdent</a>; <span class="comment">// Trace information (optional)</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// Method to handle completed reads</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment">//</span></div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classXrdSfsAio.html#aae6fcbc910bf72e798b52c7fe823182b">doneRead</a>() = 0;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="comment">// Method to hand completed writes</span></div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">//</span></div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classXrdSfsAio.html#af9f2bee06d0ffcc87e8f06018a3b32ef">doneWrite</a>() = 0;</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="comment">// Method to recycle free object</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="comment">//</span></div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classXrdSfsAio.html#aa3e5e9f1f081134db08a18f2a3509b52">Recycle</a>() = 0;</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div>
<div class="line"><a name="l00079"></a><span class="lineno"><a class="code" href="classXrdSfsAio.html#a21e5d50a464d3d2cd450c2a7f439b39e"> 79</a></span>  <a class="code" href="classXrdSfsAio.html#a21e5d50a464d3d2cd450c2a7f439b39e">XrdSfsAio</a>() {</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span> <span class="preprocessor">#if defined(__APPLE__) && (!defined(MAC_OS_X_VERSION_10_4) || \</span></div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor"> MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_4)</span></div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"></span> <a class="code" href="classXrdSfsAio.html#ae83b485651e6fe1663643acc7a4984b7">sfsAio</a>.<a class="code" href="structaiocb.html#a7065f3086beb9cdffc525c1d09949268">aio_sigevent</a>.sigev_value.sigval_ptr = (<span class="keywordtype">void</span> *)<span class="keyword">this</span>;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"></span> <a class="code" href="classXrdSfsAio.html#ae83b485651e6fe1663643acc7a4984b7">sfsAio</a>.<a class="code" href="structaiocb.html#a7065f3086beb9cdffc525c1d09949268">aio_sigevent</a>.sigev_value.sival_ptr = (<span class="keywordtype">void</span> *)<span class="keyword">this</span>;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"></span> <a class="code" href="classXrdSfsAio.html#ae83b485651e6fe1663643acc7a4984b7">sfsAio</a>.<a class="code" href="structaiocb.html#a7065f3086beb9cdffc525c1d09949268">aio_sigevent</a>.sigev_notify = SIGEV_SIGNAL;</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <a class="code" href="classXrdSfsAio.html#ae83b485651e6fe1663643acc7a4984b7">sfsAio</a>.<a class="code" href="structaiocb.html#a7a8f63c080c8602ebcacbb86e9f5547e">aio_reqprio</a> = 0;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <a class="code" href="classXrdSfsAio.html#a14aeb24139bcb6ede63629991e169267">TIdent</a> = (<span class="keywordtype">char</span> *)<span class="stringliteral">""</span>;</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="code" href="classXrdSfsAio.html#a983c32220ac9afe72f4cc3d56540faf2"> 90</a></span> <span class="keyword">virtual</span> <a class="code" href="classXrdSfsAio.html#a983c32220ac9afe72f4cc3d56540faf2">~XrdSfsAio</a>() {}</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> };</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor">#endif</span></div>
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