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| <div class="title">strerror.hpp</div> </div> |
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| <a href="strerror_8hpp.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="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// You may obtain a copy of the License at</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">// http://www.apache.org/licenses/LICENSE-2.0</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">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef __STOUT_OS_STRERROR_HPP__</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#define __STOUT_OS_STRERROR_HPP__</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <errno.h></span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <string.h></span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <string></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">#ifdef __WINDOWS__</span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor"></span><span class="preprocessor">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html">stout/windows.hpp</a>></span></div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#endif // __WINDOWS__</span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="keyword">namespace </span>os {</div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> |
| <div class="line"><a name="l00030"></a><span class="lineno"><a class="line" href="namespaceos.html#aa9ac22b4028f187826a9861373006abf"> 30</a></span> <span class="keyword">inline</span> std::string <a class="code" href="namespaceos.html#aa9ac22b4028f187826a9861373006abf">strerror</a>(<span class="keywordtype">int</span> errno_)</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="comment">// There are two versions of strerror_r that need to be handled</span></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="comment">// based on the feature test macros below.</span></div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#if !defined(__GLIBC__) || \</span></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="preprocessor"> ((_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600) && \</span></div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor"> !defined(_GNU_SOURCE))</span></div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor"></span> <span class="comment">// (1) We have the XSI-compliant version which returns an error code.</span></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keywordtype">size_t</span> <a class="code" href="namespaceos_1_1stat.html#aac17a91dd3f91341b8c4021025e89b04">size</a> = 1024;</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  <span class="keywordtype">char</span>* buffer = <span class="keyword">new</span> <span class="keywordtype">char</span>[<a class="code" href="namespaceos_1_1stat.html#aac17a91dd3f91341b8c4021025e89b04">size</a>];</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="keywordflow">if</span> (::<a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a62c88b2ce7fd7f9c5dfa981befe35c48">strerror_r</a>(errno_, buffer, size) == ERANGE) {</div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="keyword">delete</span>[] buffer;</div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  size *= 2;</div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  buffer = <span class="keyword">new</span> <span class="keywordtype">char</span>[<a class="code" href="namespaceos_1_1stat.html#aac17a91dd3f91341b8c4021025e89b04">size</a>];</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keyword">const</span> std::string message = buffer;</div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keyword">delete</span>[] buffer;</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">return</span> message;</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  }</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">#else</span></div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="preprocessor"></span> <span class="comment">// (2) We have the GNU-specific version which returns a char*.</span></div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// For known error codes, strerror_r will not use the caller</span></div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// provided buffer and will instead return a pointer to</span></div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="comment">// internal storage. The buffer provided by the caller is only</span></div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// only used for unknown error messages. So, we ensure that</span></div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="comment">// the buffer can hold "Unknown error <20-digit 8-byte number>".</span></div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="comment">// Note that the buffer will include a truncated message if the</span></div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="comment">// buffer is not long enough.</span></div> |
| <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">char</span> buffer[1024];</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a62c88b2ce7fd7f9c5dfa981befe35c48">return ::strerror_r</a>(errno_, buffer, 1024);</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#endif</span></div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="preprocessor"></span>}</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> </div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> } <span class="comment">// namespace os {</span></div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#endif // __STOUT_OS_STRERROR_HPP__</span></div> |
| <div class="ttc" id="namespaceos_html_aa9ac22b4028f187826a9861373006abf"><div class="ttname"><a href="namespaceos.html#aa9ac22b4028f187826a9861373006abf">os::strerror</a></div><div class="ttdeci">std::string strerror(int errno_)</div><div class="ttdoc">A thread-safe version of strerror. </div><div class="ttdef"><b>Definition:</b> strerror.hpp:30</div></div> |
| <div class="ttc" id="3rdparty_2stout_2include_2stout_2windows_8hpp_html"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2windows_8hpp.html">windows.hpp</a></div></div> |
| <div class="ttc" id="3rdparty_2stout_2include_2stout_2windows_8hpp_html_a62c88b2ce7fd7f9c5dfa981befe35c48"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a62c88b2ce7fd7f9c5dfa981befe35c48">strerror_r</a></div><div class="ttdeci">auto strerror_r(int errnum, char *buffer, size_t length) -></div><div class="ttdef"><b>Definition:</b> windows.hpp:328</div></div> |
| <div class="ttc" id="namespaceos_1_1stat_html_aac17a91dd3f91341b8c4021025e89b04"><div class="ttname"><a href="namespaceos_1_1stat.html#aac17a91dd3f91341b8c4021025e89b04">os::stat::size</a></div><div class="ttdeci">Try< Bytes > size(const std::string &path, const FollowSymlink follow=FOLLOW_SYMLINK)</div><div class="ttdef"><b>Definition:</b> stat.hpp:88</div></div> |
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