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<li class="navelem"><a class="el" href="dir_97aefd0d527b934f1d99a682da8fe6a9.html">lib</a></li><li class="navelem"><a class="el" href="dir_5d0aa56803c8250a5d891761f6bfc5c7.html">io</a></li> </ul>
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<div class="title">io.c</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * libopenraw - io.c</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> * Copyright (C) 2005-2007 Hubert Figuiere</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This library is free software: you can redistribute it and/or</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * modify it under the terms of the GNU Lesser General Public License</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * as published by the Free Software Foundation, either version 3 of</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * the License, or (at your option) any later version.</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 library is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * Lesser General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU Lesser General Public</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * License along with this library. If not, see</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * <http://www.gnu.org/licenses/>.</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> </div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <stdlib.h></span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <errno.h></span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include "libopenraw/io.h"</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include "io_private.h"</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "posix_io.h"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "or_debug.h"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">extern</span> <span class="stringliteral">"C"</span> {</div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#define CHECK_PTR(p,r) \</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"> if(p == NULL) { return r; }</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">struct </span><a class="code" href="structio__methods.html">io_methods</a>* get_default_io_methods(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordflow">return</span> &posix_io_methods;</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> }</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <a class="code" href="struct__IOFile.html">IOFileRef</a> raw_open(<span class="keyword">struct</span> <a class="code" href="structio__methods.html">io_methods</a> * methods, <span class="keyword">const</span> <span class="keywordtype">char</span> *path, <span class="keywordtype">int</span> mode)</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> {</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  CHECK_PTR(methods, NULL);</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">return</span> methods-><a class="code" href="structio__methods.html#a5b737a084812195aaeadf466e1c86d84">open</a>(path, mode);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> }</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="keywordtype">int</span> raw_close(<a class="code" href="struct__IOFile.html">IOFileRef</a> f)</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span> {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">int</span> retval;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  CHECK_PTR(f,-1);</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  retval = f-><a class="code" href="struct__IOFile.html#a62e36247307ed06b0558b23d1a4181dc">methods</a>-><a class="code" href="structio__methods.html#a85a743de7dd073fd2d7daae8168a1527">close</a>(f);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  free(f);</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> retval;</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> </div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keywordtype">int</span> raw_seek(<a class="code" href="struct__IOFile.html">IOFileRef</a> f, off_t offset, <span class="keywordtype">int</span> whence)</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> {</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  CHECK_PTR(f,-1);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</span> f-><a class="code" href="struct__IOFile.html#a62e36247307ed06b0558b23d1a4181dc">methods</a>-><a class="code" href="structio__methods.html#a757e0235f9a5cfbbfc4b9e986cb221ab">seek</a>(f, offset, whence);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</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"> 90</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="keywordtype">int</span> raw_read(<a class="code" href="struct__IOFile.html">IOFileRef</a> f, <span class="keywordtype">void</span> *buf, <span class="keywordtype">size_t</span> count)</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> {</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  CHECK_PTR(f,-1);</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> f-><a class="code" href="struct__IOFile.html#a62e36247307ed06b0558b23d1a4181dc">methods</a>-><a class="code" href="structio__methods.html#ab9a8645aeb3ac2b0080d28dfb689ba34">read</a>(f, buf, count);</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> }</div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> </div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> off_t raw_filesize(<a class="code" href="struct__IOFile.html">IOFileRef</a> f)</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> {</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  CHECK_PTR(f,0);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">return</span> f-><a class="code" href="struct__IOFile.html#a62e36247307ed06b0558b23d1a4181dc">methods</a>->filesize(f);</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> }</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keywordtype">void</span> *raw_mmap(<a class="code" href="struct__IOFile.html">IOFileRef</a> f, <span class="keywordtype">size_t</span> l, off_t offset)</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> {</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  CHECK_PTR(f,NULL);</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">return</span> f-><a class="code" href="struct__IOFile.html#a62e36247307ed06b0558b23d1a4181dc">methods</a>->mmap(f, l, offset);</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span> }</div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> </div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="keywordtype">int</span> raw_munmap(<a class="code" href="struct__IOFile.html">IOFileRef</a> f, <span class="keywordtype">void</span> *addr, <span class="keywordtype">size_t</span> l)</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> {</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  CHECK_PTR(f,-1);</div>
<div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordflow">return</span> f-><a class="code" href="struct__IOFile.html#a62e36247307ed06b0558b23d1a4181dc">methods</a>->munmap(f, addr, l);</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> }</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> </div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="keywordtype">int</span> raw_get_error(<a class="code" href="struct__IOFile.html">IOFileRef</a> f)</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span> {</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  CHECK_PTR(f,EFAULT);</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keywordflow">return</span> f-><a class="code" href="struct__IOFile.html#a36f7d5f2e86fe13dfa05b219396e078d">error</a>;</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> }</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> <span class="keywordtype">char</span> *raw_get_path(<a class="code" href="struct__IOFile.html">IOFileRef</a> f)</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span> {</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  CHECK_PTR(f,NULL);</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordflow">return</span> f-><a class="code" href="struct__IOFile.html#a865fa346a8bb6bc82f5cb6edfacccc68">path</a>;</div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span> }</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> </div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="preprocessor">#ifdef __cplusplus</span></div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> }</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
<div class="ttc" id="struct__IOFile_html_a36f7d5f2e86fe13dfa05b219396e078d"><div class="ttname"><a href="struct__IOFile.html#a36f7d5f2e86fe13dfa05b219396e078d">_IOFile::error</a></div><div class="ttdeci">int error</div><div class="ttdef"><b>Definition:</b> <a href="io__private_8h_source.html#l00034">io_private.h:34</a></div></div>
<div class="ttc" id="struct__IOFile_html_a62e36247307ed06b0558b23d1a4181dc"><div class="ttname"><a href="struct__IOFile.html#a62e36247307ed06b0558b23d1a4181dc">_IOFile::methods</a></div><div class="ttdeci">struct io_methods * methods</div><div class="ttdef"><b>Definition:</b> <a href="io__private_8h_source.html#l00028">io_private.h:28</a></div></div>
<div class="ttc" id="structio__methods_html_ab9a8645aeb3ac2b0080d28dfb689ba34"><div class="ttname"><a href="structio__methods.html#ab9a8645aeb3ac2b0080d28dfb689ba34">io_methods::read</a></div><div class="ttdeci">int(* read)(IOFileRef f, void *buf, size_t count)</div><div class="ttdef"><b>Definition:</b> <a href="io_8h_source.html#l00048">io.h:48</a></div></div>
<div class="ttc" id="struct__IOFile_html"><div class="ttname"><a href="struct__IOFile.html">_IOFile</a></div><div class="ttdef"><b>Definition:</b> <a href="io__private_8h_source.html#l00026">io_private.h:26</a></div></div>
<div class="ttc" id="structio__methods_html_a85a743de7dd073fd2d7daae8168a1527"><div class="ttname"><a href="structio__methods.html#a85a743de7dd073fd2d7daae8168a1527">io_methods::close</a></div><div class="ttdeci">int(* close)(IOFileRef f)</div><div class="ttdef"><b>Definition:</b> <a href="io_8h_source.html#l00044">io.h:44</a></div></div>
<div class="ttc" id="structio__methods_html_a757e0235f9a5cfbbfc4b9e986cb221ab"><div class="ttname"><a href="structio__methods.html#a757e0235f9a5cfbbfc4b9e986cb221ab">io_methods::seek</a></div><div class="ttdeci">int(* seek)(IOFileRef f, off_t offset, int whence)</div><div class="ttdef"><b>Definition:</b> <a href="io_8h_source.html#l00046">io.h:46</a></div></div>
<div class="ttc" id="structio__methods_html_a5b737a084812195aaeadf466e1c86d84"><div class="ttname"><a href="structio__methods.html#a5b737a084812195aaeadf466e1c86d84">io_methods::open</a></div><div class="ttdeci">IOFileRef(* open)(const char *path, int mode)</div><div class="ttdef"><b>Definition:</b> <a href="io_8h_source.html#l00042">io.h:42</a></div></div>
<div class="ttc" id="structio__methods_html"><div class="ttname"><a href="structio__methods.html">io_methods</a></div><div class="ttdef"><b>Definition:</b> <a href="io_8h_source.html#l00038">io.h:38</a></div></div>
<div class="ttc" id="struct__IOFile_html_a865fa346a8bb6bc82f5cb6edfacccc68"><div class="ttname"><a href="struct__IOFile.html#a865fa346a8bb6bc82f5cb6edfacccc68">_IOFile::path</a></div><div class="ttdeci">char * path</div><div class="ttdef"><b>Definition:</b> <a href="io__private_8h_source.html#l00032">io_private.h:32</a></div></div>
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