http://git-wip-us.apache.org/repos/asf/mesos-site/blob/e6085b1f/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp_source.html ---------------------------------------------------------------------- diff --git a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp_source.html b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp_source.html index 9894805..7127f6b 100644 --- a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp_source.html +++ b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp_source.html @@ -52,8 +52,8 @@ <div class="title">read.hpp</div> </div> </div><!--header--> <div class="contents"> -<a href="3rdparty_2stout_2include_2stout_2os_2posix_2read_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_POSIX_READ_HPP__</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define __STOUT_OS_POSIX_READ_HPP__</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</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 <unistd.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> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span><a class="c ode" href="namespaceos.html">os</a> {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// Compatibility function. On POSIX, this function is trivial, but on Windows,</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// we have to check whether the file descriptor is a socket or a file to read</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// from it.</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <a class="code" href="namespaceos.html#af24a361f8c310bd4d732e68378b57ed3">using ::read</a>;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> } <span class="comment">// n amespace os {</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">#endif // __STOUT_OS_POSIX_READ_HPP__</span></div><div class="ttc" id="namespaceos_html"><div class="ttname"><a href="namespaceos.html">os</a></div><div class="ttdef"><b>Definition:</b> posix_signalhandler.hpp:23</div></div> -<div class="ttc" id="namespaceos_html_af24a361f8c310bd4d732e68378b57ed3"><div class="ttname"><a href="namespaceos.html#af24a361f8c310bd4d732e68378b57ed3">os::read</a></div><div class="ttdeci">ssize_t read(const WindowsFD &fd, void *data, size_t size)</div><div class="ttdef"><b>Definition:</b> read.hpp:28</div></div> +<a href="3rdparty_2stout_2include_2stout_2os_2posix_2read_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_POSIX_READ_HPP__</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define __STOUT_OS_POSIX_READ_HPP__</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</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 <unistd.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> </div><div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="keyword">namespace </span><a class="c ode" href="namespaceos.html">os</a> {</div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// Compatibility function. On POSIX, this function is trivial, but on Windows,</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// we have to check whether the file descriptor is a socket or a file to read</span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">// from it.</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <a class="code" href="namespaceos.html#a7e99bac0fb06315c051358c7916fe692">using ::read</a>;</div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> } <span class="comment">// n amespace os {</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">#endif // __STOUT_OS_POSIX_READ_HPP__</span></div><div class="ttc" id="namespaceos_html"><div class="ttname"><a href="namespaceos.html">os</a></div><div class="ttdef"><b>Definition:</b> posix_signalhandler.hpp:23</div></div> +<div class="ttc" id="namespaceos_html_a7e99bac0fb06315c051358c7916fe692"><div class="ttname"><a href="namespaceos.html#a7e99bac0fb06315c051358c7916fe692">os::read</a></div><div class="ttdeci">ssize_t read(const int_fd &fd, void *data, size_t size)</div><div class="ttdef"><b>Definition:</b> read.hpp:25</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> <hr class="footer"/><address class="footer"><small>
http://git-wip-us.apache.org/repos/asf/mesos-site/blob/e6085b1f/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2read_8hpp_source.html ---------------------------------------------------------------------- diff --git a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2read_8hpp_source.html b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2read_8hpp_source.html index 144f6a7..b5daed6 100644 --- a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2read_8hpp_source.html +++ b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2read_8hpp_source.html @@ -52,10 +52,12 @@ <div class="title">read.hpp</div> </div> </div><!--header--> <div class="contents"> -<a href="3rdparty_2stout_2include_2stout_2os_2read_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>&# 160;<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_READ_HPP__</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define __STOUT_OS_READ_HPP__</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <assert.h></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <stdio.h></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#ifndef __WINDOWS__</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <unistd.h></span></div><div class="line"><a name="l00020"> </a><span class="lineno"> 20</span> <span class="preprocessor">#endif // __WINDOWS__</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <string></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">#if defined(__sun) || defined(__WINDOWS__)</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <fstream></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#endif // __sun || __WINDOWS__</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class ="lineno"> 28</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#ifdef __WINDOWS__</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</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="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor" >#endif // __WINDOWS__</span></div><div class="line"><a >name="l00034"></a><span class="lineno"> 34</span> </div><div >class="line"><a name="l00035"></a><span class="lineno"> >35</span> <span class="preprocessor">#include <<a class="code" >href="int__fd_8hpp.html">stout/os/int_fd.hpp</a>></span></div><div >class="line"><a name="l00036"></a><span class="lineno"> >36</span> <span class="preprocessor">#include <<a class="code" >href="stout_2include_2stout_2os_2socket_8hpp.html">stout/os/socket.hpp</a>></span></div><div > class="line"><a name="l00037"></a><span class="lineno"> >37</span> </div><div class="line"><a name="l00038"></a><span >class="lineno"> 38</span> <span class="preprocessor">#ifdef >__WINDOWS__</span></div><div class="line"><a name="l00039"></a><span >class="lineno"> 39</span> <span class="preprocessor">#include <<a >class="code" >href="3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp.html">stout/os/windows/read.hpp</a>> ;</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">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp.html">stout/os/posix/read.hpp</a>></span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#endif // __WINDOWS__</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> </div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="keyword">namespace </span><a class="code" href="namespaceos.html">os</a> {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="li neno"> 47</span> <span class="comment">// Reads 'size' bytes from a file from its current offset.</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment">// If EOF is encountered before reading 'size' bytes then the result</span></div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment">// will contain the bytes read and a subsequent read will return None.</span></div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7"> 50</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<std::string></a> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">read</a>(<a class="code" href="int__fd_8hpp.html#aea4dbda01c90455f158ffa9b924c2f07">int_fd</a> fd, <span class="keywordtype">size_t</span> <a class="code" href="nam espaceos_1_1stat.html#a7a116891923bc8b5d8c50f78da8657be">size</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="keywordtype">char</span>* buffer = <span class="keyword">new</span> <span class="keywordtype">char</span>[<a class="code" href="namespaceos_1_1stat.html#a7a116891923bc8b5d8c50f78da8657be">size</a>];</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordtype">size_t</span> offset = 0;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">while</span> (offset < size) {</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7 e8244de1386">ssize_t</a> length = <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">os::read</a>(fd, buffer + offset, size - offset);</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#ifdef __WINDOWS__</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">int</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a> = WSAGetLastError();</div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">int</span> error = errno;</div><div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <s pan class="preprocessor">#endif // __WINDOWS__</span></div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">if</span> (length < 0) {</div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">// TODO(bmahler): Handle a non-blocking fd? (EAGAIN, EWOULDBLOCK)</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacenet.html#a190d273d305decda6696ed04b3adbd59">net::is_restartable_error</a>(error)) {</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">continue</span>;</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>  <a class="code" href="classErrnoError.html">ErrnoError</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>; <span class="comment">// Constructed before 'delete' to capture errno.</span></div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (length == 0) {</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="comment">// Reached EOF before expecte d! Only return as much data as</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="comment">// available or None if we haven't read anything yet.</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span> (offset > 0) {</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  std::string result(buffer, offset);</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  }</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">delete</span>[] buffer;</div><div c lass="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</a>();</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  }</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  offset += length;</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> </div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  std::string result(buffer, size);</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="keywordflow">return</span> resu lt;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> }</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> </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment">// Returns the contents of the file. NOTE: getline is not available on Solaris</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">// or Windows, so we use STL.</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor">#if defined(__sun) || defined(__WINDOWS__)</span></div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<std::string></a> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3 e2d567f7">read</a>(<span class="keyword">const</span> std::string& <a class="code" href="namespacepath.html">path</a>)</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span> {</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  std::ifstream <a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>(path.c_str());</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>.is_open()) {</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="comment">// Does ifstream actually set errno?</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="s tringliteral">"Failed to open file"</span>);</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>  <span class="keywordflow">return</span> std::string((std::istreambuf_iterator<char>(<a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>)),</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  (std::istreambuf_iterator<char>()));</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> <span class="preprocessor">#else</span></div><div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="namespaceos.html#ac7e4e9ac378b8ccbf2faecdfb3f3a825"> 107</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.h tml">Try<std::string></a> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">read</a>(<span class="keyword">const</span> std::string& path)</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>  FILE* <a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a> = ::fopen(path.c_str(), <span class="stringliteral">"r"</span>);</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (file == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  }</div><div class="line"><a name="l0 0113"></a><span class="lineno"> 113</span> </div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">// Use a buffer to read the file in BUFSIZ</span></div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="comment">// chunks and append it to the string we return.</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="comment">//</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="comment">// NOTE: We aren't able to use fseek() / ftell() here</span></div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  <span class="comment">// to find the file size because these functions don't</span></div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  <span class="comment">// work properly for in-memory files like /proc/*/stat.</s pan></div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keywordtype">char</span>* buffer = <span class="keyword">new</span> <span class="keywordtype">char</span>[BUFSIZ];</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  std::string result;</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>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">size_t</span> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">read</a> = ::fread(buffer, 1, BUFSIZ, file);</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span> </div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class ="keywordflow">if</span> (::ferror(file)) {</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="comment">// NOTE: ferror() will not modify errno if the stream</span></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="comment">// is valid, which is the case here since it is open.</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <a class="code" href="classErrnoError.html">ErrnoError</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  ::fclose(file);</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span cl ass="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">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>  result.append(buffer, read);</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span> </div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">if</span> (read != BUFSIZ) {</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  assert(feof(file));</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  } </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  };</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> </div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  ::fclose(file);</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> }</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="preprocessor">#endif // __sun || __WINDOWS__</span></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> } <span class="comment">// namespace os {</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">#endif // __STOUT_OS_READ_HPP__</span></div><div class="ttc" id="3rdparty_2stout_2include_2stout_2windows_8hpp_html_a894c4d58faeee7675b9e7e8244de1386"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7e8244de1386">ssize_t</a></div><div class="ttdeci">SSIZE_T ssize_t</div><div class="ttdef"><b>Definition:</b> windows.hpp:192</div></div> +<a href="3rdparty_2stout_2include_2stout_2os_2read_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>&# 160;<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_READ_HPP__</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor">#define __STOUT_OS_READ_HPP__</span></div><div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div><div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <assert.h></span></div><div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <stdio.h></span></div><div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="preprocessor">#ifndef __WINDOWS__</span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <unistd.h></span></div><div class="line"><a name="l00020"> </a><span class="lineno"> 20</span> <span class="preprocessor">#endif // __WINDOWS__</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <string></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">#if defined(__sun) || defined(__WINDOWS__)</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor">#include <fstream></span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#endif // __sun || __WINDOWS__</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div><div class="line"><a name="l00028"></a><span class ="lineno"> 28</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include <<a class="code" href="result_8hpp.html">stout/result.hpp</a>></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor">#ifdef __WINDOWS__</span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#include <<a class="code" href="stringify_8hpp.html">stout/stringify.hpp</a>></span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</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="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#endif // __WINDOWS__</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="preprocessor">#include <<a class="code" href="int__fd_8hpp.html">stout/os/int_fd.hpp</a>></span></div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include <<a class="code" href="stout_2include_2stout_2os_2socket_8hpp.html">stout/os/socket.hpp</a>></span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#ifdef __WINDOWS__</span></div><div class="line"><a name="l00040 "></a><span class="lineno"> 40</span> <span class="preprocessor">#include <<a class="code" href="longpath_8hpp.html">stout/internal/windows/longpath.hpp</a>></span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="preprocessor">#endif // __WINDOWS__</span></div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="preprocessor">#ifdef __WINDOWS__</span></div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp.html">stout/os/windows/read.hpp</a>></span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="preprocessor">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp.html">stout/os/posix/read.hpp</a>></span></div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="preprocessor">#endif // __WINDOWS__</span></div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="keyword">namespace </span><a class="code" href="namespaceos.html">os</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="comment">// Reads 'size' bytes from a file from its current offset.</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comme nt">// If EOF is encountered before reading 'size' bytes then the result</span></div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment">// will contain the bytes read and a subsequent read will return None.</span></div><div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7"> 55</a></span> <span class="keyword">inline</span> <a class="code" href="classResult.html">Result<std::string></a> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">read</a>(<a class="code" href="int__fd_8hpp.html#aea4dbda01c90455f158ffa9b924c2f07">int_fd</a> fd, <span class="keywordtype">size_t</span> <a class="code" href="namespaceos_1_1stat.html#a7a116891923bc8b5d8c50f78da8657be">size</a>)</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> {</div><div class="line"><a name="l00057"></a><span class="lineno"> 5 7</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#a7a116891923bc8b5d8c50f78da8657be">size</a>];</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <span class="keywordtype">size_t</span> offset = 0;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keywordflow">while</span> (offset < size) {</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <a class="code" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7e8244de1386">ssize_t</a> length = <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">os::read</a>(fd, buffer + offset, size - offset);</div><div class="line"><a name="l00062"></a><span class="lineno "> 62</span> </div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#ifdef __WINDOWS__</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="comment">// NOTE: There is no actual difference between `WSAGetLastError` and</span></div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="comment">// `GetLastError`, the former is an alias for the latter. As such, there is</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="comment">// no difference between `WindowsError` and `WindowsSocketError`, so we can</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="comment">// simply use the former here for both `HANDLE` and `SOCKET` types of</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="comment">// `int_fd`. See MESOS-8764.</span></div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <a class="code" href="classWindowsError.html">WindowsError</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <a class="code" href="classErrnoError.html">ErrnoError</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="preprocessor">#endif // __WINDOWS__</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> </div><div class="line"><a name="l00074"></a><sp an class="lineno"> 74</span>  <span class="keywordflow">if</span> (length < 0) {</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="comment">// TODO(bmahler): Handle a non-blocking fd? (EAGAIN, EWOULDBLOCK)</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacenet.html#a190d273d305decda6696ed04b3adbd59">net::is_restartable_error</a>(error.<a class="code" href="classErrnoError.html#ae512d4301c6ef39767a39a5636810ff6">code</a>)) {</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keywordflow">continue</span>;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  }</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name= "l00080"></a><span class="lineno"> 80</span>  <span class="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div><div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (length == 0) {</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="comment">// Reached EOF before expected! Only return as much data as</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  <span class="comment">// available or None if we haven't read anything yet.</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">if</span> (offset > 0) {</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  std::str ing result(buffer, offset);</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</span> result;</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>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">return</span> <a class="code" href="structNone.html">None</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> </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  offset += length;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  }</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  std::string result(buffer, size);</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordflow">return</span> result;</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> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> </div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="comment">// Returns the contents of the file.</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="comment">// NOTE: getline is not available on Solaris so we use STL.</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#if defined(__sun)</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<std::string></a> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">read</a>(<span class="keyword">const</span> std::string& <a class="code" href="namespacepath.html">path</a>)</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> {</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  std::ifstream <a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>(path.c_str());</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>   <span class="keywordflow">if</span> (!<a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>.is_open()) {</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  <span class="comment">// Does ifstream actually set errno?</span></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>(<span class="stringliteral">"Failed to open file"</span>);</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>  <span class="keywordflow">return</span> std::string((std::istreambuf_iterator<char>(<a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>)),</div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&# 160; (std::istreambuf_iterator<char>()));</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> <span class="comment">// NOTE: Windows needs Unicode long path support.</span></div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="preprocessor">#elif defined(__WINDOWS__)</span></div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<std::string></a> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">read</a>(<span class="keyword">const</span> std::string& path)</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>  <span class="keyword">const</span> std::wstr ing <a class="code" href="namespaceinternal_1_1windows.html#abd7dbdbc8d95626d0c66455078380aa1">longpath</a> = <a class="code" href="namespaceinternal_1_1windows.html#abd7dbdbc8d95626d0c66455078380aa1">::internal::windows::longpath</a>(path);</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="comment">// NOTE: The `wchar_t` constructor of `ifstream` is an MSVC</span></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="comment">// extension.</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="comment">//</span></div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <span class="comment">// TODO(andschwa): This might need `io_base::binary` like other</span></div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="comment">// streams on Windows.</span></div><div class="line "><a name="l00125"></a><span class="lineno"> 125</span>  std::ifstream <a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>(longpath.data());</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keywordflow">if</span> (!<a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>.is_open()) {</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Failed to open file"</span>);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  }</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keywordflow">return</span> std::string((std::istreambuf_iterator& lt;char>(<a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a>)),</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  (std::istreambuf_iterator<char>()));</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span> }</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="preprocessor">#else</span></div><div class="line"><a name="l00134"></a><span class="lineno"><a class="line" href="namespaceos.html#ac7e4e9ac378b8ccbf2faecdfb3f3a825"> 134</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<std::string></a> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">read</a>(<span class="keyword">const</span> std::string& path)</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> {</div><div class="line"><a name="l00136"></a><sp an class="lineno"> 136</span>  FILE* <a class="code" href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">file</a> = ::fopen(path.c_str(), <span class="stringliteral">"r"</span>);</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keywordflow">if</span> (file == <span class="keyword">nullptr</span>) {</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordflow">return</span> <a class="code" href="classErrnoError.html">ErrnoError</a>();</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  }</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> </div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  <span class="comment">// Use a buffer to read the file in BUFSIZ</span></div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class=" comment">// chunks and append it to the string we return.</span></div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">//</span></div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="comment">// NOTE: We aren't able to use fseek() / ftell() here</span></div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="comment">// to find the file size because these functions don't</span></div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="comment">// work properly for in-memory files like /proc/*/stat.</span></div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keywordtype">char</span>* buffer = <span class="keyword">new</span> <span class="keywordtype">char</span>[BUFSIZ];</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  st d::string result;</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>  <span class="keywordflow">while</span> (<span class="keyword">true</span>) {</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="keywordtype">size_t</span> <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">read</a> = ::fread(buffer, 1, BUFSIZ, file);</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="keywordflow">if</span> (::ferror(file)) {</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="comment">// NOTE: ferror() will not modify errno if the stream</span></div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="comment">// is valid, which is the case here since it is open.</span></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="classErrnoError.html">ErrnoError</a> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  ::fclose(file);</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keywordflow">return</span> <a class="code" href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">error</a>;</div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  }</div><div class="line"><a name="l00161"></a><span class="lin eno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  result.append(buffer, read);</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> </div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (read != BUFSIZ) {</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  assert(feof(file));</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">break</span>;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  };</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span> </div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  ::fclose(file);</div><div class="line"><a name= "l00171"></a><span class="lineno"> 171</span>  <span class="keyword">delete</span>[] buffer;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <span class="keywordflow">return</span> result;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> }</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> <span class="preprocessor">#endif // __sun || __WINDOWS__</span></div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span> } <span class="comment">// namespace os {</span></div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span> <span class="preprocessor">#endif // __STOUT_OS_READ_HPP__</span></div><div class="ttc" id="3rdparty_2stout_2include_2stout_2windows_8hpp_html_a894c 4d58faeee7675b9e7e8244de1386"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7e8244de1386">ssize_t</a></div><div class="ttdeci">SSIZE_T ssize_t</div><div class="ttdef"><b>Definition:</b> windows.hpp:186</div></div> <div class="ttc" id="namespacepath_html"><div class="ttname"><a href="namespacepath.html">path</a></div><div class="ttdef"><b>Definition:</b> path.hpp:26</div></div> -<div class="ttc" id="namespaceos_1_1stat_html_a7a116891923bc8b5d8c50f78da8657be"><div class="ttname"><a href="namespaceos_1_1stat.html#a7a116891923bc8b5d8c50f78da8657be">os::stat::size</a></div><div class="ttdeci">Try< Bytes > size(const std::string &path, const FollowSymlink follow=FollowSymlink::FOLLOW_SYMLINK)</div><div class="ttdef"><b>Definition:</b> stat.hpp:100</div></div> +<div class="ttc" id="classError_html"><div class="ttname"><a href="classError.html">Error</a></div><div class="ttdef"><b>Definition:</b> errorbase.hpp:35</div></div> +<div class="ttc" id="namespaceos_1_1stat_html_a7a116891923bc8b5d8c50f78da8657be"><div class="ttname"><a href="namespaceos_1_1stat.html#a7a116891923bc8b5d8c50f78da8657be">os::stat::size</a></div><div class="ttdeci">Try< Bytes > size(const std::string &path, const FollowSymlink follow=FollowSymlink::FOLLOW_SYMLINK)</div><div class="ttdef"><b>Definition:</b> stat.hpp:119</div></div> <div class="ttc" id="classTry_html"><div class="ttname"><a href="classTry.html">Try</a></div><div class="ttdef"><b>Definition:</b> check.hpp:33</div></div> +<div class="ttc" id="classWindowsError_html"><div class="ttname"><a href="classWindowsError.html">WindowsError</a></div><div class="ttdef"><b>Definition:</b> error.hpp:106</div></div> <div class="ttc" id="classErrnoError_html"><div class="ttname"><a href="classErrnoError.html">ErrnoError</a></div><div class="ttdef"><b>Definition:</b> errorbase.hpp:49</div></div> <div class="ttc" id="namespaceos_html"><div class="ttname"><a href="namespaceos.html">os</a></div><div class="ttdef"><b>Definition:</b> posix_signalhandler.hpp:23</div></div> <div class="ttc" id="stout_2include_2stout_2os_2socket_8hpp_html"><div class="ttname"><a href="stout_2include_2stout_2os_2socket_8hpp.html">socket.hpp</a></div></div> @@ -65,13 +67,17 @@ <div class="ttc" id="3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp_html"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2os_2posix_2read_8hpp.html">read.hpp</a></div></div> <div class="ttc" id="namespacenet_html_a190d273d305decda6696ed04b3adbd59"><div class="ttname"><a href="namespacenet.html#a190d273d305decda6696ed04b3adbd59">net::is_restartable_error</a></div><div class="ttdeci">bool is_restartable_error(int error)</div><div class="ttdef"><b>Definition:</b> socket.hpp:56</div></div> <div class="ttc" id="namespacemesos_1_1uri_html_a0a3b30c1eb427c4053aaef120b1f453c"><div class="ttname"><a href="namespacemesos_1_1uri.html#a0a3b30c1eb427c4053aaef120b1f453c">mesos::uri::file</a></div><div class="ttdeci">URI file(const std::string &path)</div><div class="ttdoc">Creates a file URI with the given path on the local host. </div><div class="ttdef"><b>Definition:</b> file.hpp:33</div></div> +<div class="ttc" id="longpath_8hpp_html"><div class="ttname"><a href="longpath_8hpp.html">longpath.hpp</a></div></div> <div class="ttc" id="3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp_html"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp.html">read.hpp</a></div></div> -<div class="ttc" id="namespaceos_html_aa1d97ff0a93229e1fe6b33e3e2d567f7"><div class="ttname"><a href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">os::read</a></div><div class="ttdeci">Result< std::string > read(int_fd fd, size_t size)</div><div class="ttdef"><b>Definition:</b> read.hpp:50</div></div> +<div class="ttc" id="namespaceos_html_aa1d97ff0a93229e1fe6b33e3e2d567f7"><div class="ttname"><a href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">os::read</a></div><div class="ttdeci">Result< std::string > read(int_fd fd, size_t size)</div><div class="ttdef"><b>Definition:</b> read.hpp:55</div></div> <div class="ttc" id="error_8hpp_html"><div class="ttname"><a href="error_8hpp.html">error.hpp</a></div></div> <div class="ttc" id="structNone_html"><div class="ttname"><a href="structNone.html">None</a></div><div class="ttdef"><b>Definition:</b> none.hpp:27</div></div> <div class="ttc" id="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec_html_ae58e703656ab4a1bd5d9870441236727"><div class="ttname"><a href="namespacemesos_1_1internal_1_1slave_1_1cni_1_1spec.html#ae58e703656ab4a1bd5d9870441236727">mesos::internal::slave::cni::spec::error</a></div><div class="ttdeci">std::string error(const std::string &msg, uint32_t code)</div></div> +<div class="ttc" id="classErrnoError_html_ae512d4301c6ef39767a39a5636810ff6"><div class="ttname"><a href="classErrnoError.html#ae512d4301c6ef39767a39a5636810ff6">ErrnoError::code</a></div><div class="ttdeci">const int code</div><div class="ttdef"><b>Definition:</b> errorbase.hpp:62</div></div> +<div class="ttc" id="stringify_8hpp_html"><div class="ttname"><a href="stringify_8hpp.html">stringify.hpp</a></div></div> <div class="ttc" id="try_8hpp_html"><div class="ttname"><a href="try_8hpp.html">try.hpp</a></div></div> <div class="ttc" id="int__fd_8hpp_html"><div class="ttname"><a href="int__fd_8hpp.html">int_fd.hpp</a></div></div> +<div class="ttc" id="namespaceinternal_1_1windows_html_abd7dbdbc8d95626d0c66455078380aa1"><div class="ttname"><a href="namespaceinternal_1_1windows.html#abd7dbdbc8d95626d0c66455078380aa1">internal::windows::longpath</a></div><div class="ttdeci">std::wstring longpath(const std::string &path)</div><div class="ttdef"><b>Definition:</b> longpath.hpp:38</div></div> <div class="ttc" id="int__fd_8hpp_html_aea4dbda01c90455f158ffa9b924c2f07"><div class="ttname"><a href="int__fd_8hpp.html#aea4dbda01c90455f158ffa9b924c2f07">int_fd</a></div><div class="ttdeci">int int_fd</div><div class="ttdef"><b>Definition:</b> int_fd.hpp:35</div></div> </div><!-- fragment --></div><!-- contents --> <!-- start footer part --> http://git-wip-us.apache.org/repos/asf/mesos-site/blob/e6085b1f/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp.html ---------------------------------------------------------------------- diff --git a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp.html b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp.html index 9530572..067b481 100644 --- a/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp.html +++ b/content/api/latest/c++/3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp.html @@ -55,12 +55,11 @@ <div class="title">read.hpp File Reference</div> </div> </div><!--header--> <div class="contents"> -<div class="textblock"><code>#include <io.h></code><br /> -<code>#include <<a class="el" href="result_8hpp_source.html">stout/result.hpp</a>></code><br /> +<div class="textblock"><code>#include <<a class="el" href="result_8hpp_source.html">stout/result.hpp</a>></code><br /> <code>#include <<a class="el" href="unreachable_8hpp_source.html">stout/unreachable.hpp</a>></code><br /> <code>#include <<a class="el" href="3rdparty_2stout_2include_2stout_2windows_8hpp_source.html">stout/windows.hpp</a>></code><br /> +<code>#include <<a class="el" href="int__fd_8hpp_source.html">stout/os/int_fd.hpp</a>></code><br /> <code>#include <<a class="el" href="stout_2include_2stout_2os_2socket_8hpp_source.html">stout/os/socket.hpp</a>></code><br /> -<code>#include <<a class="el" href="fd_8hpp_source.html">stout/os/windows/fd.hpp</a>></code><br /> </div> <p><a href="3rdparty_2stout_2include_2stout_2os_2windows_2read_8hpp_source.html">Go to the source code of this file.</a></p> <table class="memberdecls"> @@ -71,8 +70,8 @@ Namespaces</h2></td></tr> </table><table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a> Functions</h2></td></tr> -<tr class="memitem:af24a361f8c310bd4d732e68378b57ed3"><td class="memItemLeft" align="right" valign="top"><a class="el" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7e8244de1386">ssize_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceos.html#af24a361f8c310bd4d732e68378b57ed3">os::read</a> (const WindowsFD &fd, void *data, size_t size)</td></tr> -<tr class="separator:af24a361f8c310bd4d732e68378b57ed3"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:a7e99bac0fb06315c051358c7916fe692"><td class="memItemLeft" align="right" valign="top"><a class="el" href="3rdparty_2stout_2include_2stout_2windows_8hpp.html#a894c4d58faeee7675b9e7e8244de1386">ssize_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="namespaceos.html#a7e99bac0fb06315c051358c7916fe692">os::read</a> (const <a class="el" href="int__fd_8hpp.html#aea4dbda01c90455f158ffa9b924c2f07">int_fd</a> &fd, void *data, size_t size)</td></tr> +<tr class="separator:a7e99bac0fb06315c051358c7916fe692"><td class="memSeparator" colspan="2"> </td></tr> </table> </div><!-- contents --> <!-- start footer part -->
