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+++ b/docs/cpp/hdfs_8h_source.html
@@ -70,7 +70,7 @@ $(function() {
<div class="title">hdfs.h</div> </div>
</div><!--header-->
<div class="contents">
-<a href="hdfs_8h.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 to the Apache Software
Foundation (ASF) under one</span></div><div class="line"><a
name="l00002"></a><span class="lineno"> 2</span> <span
class="comment">// or more contributor license agreements. See the NOTICE
file</span></div><div class="line"><a name="l00003"></a><span class="lineno">
3</span> <span class="comment">// distributed with this work for
additional information</span></div><div class="line"><a name="l00004"></a><span
class="lineno"> 4</span> <span class="comment">// regarding copyright
ownership. The ASF licenses this file</span></div><div class="line"><a
name="l00005"></a><span class="lineno"> 5</span> <span
class="comment">// to you under the Apache License, Version 2.0
(the</span></div><div class="line"><a name="l00006"></a><span class="l
ineno"> 6</span> <span class="comment">// "License"); you
may not use this file except in compliance</span></div><div class="line"><a
name="l00007"></a><span class="lineno"> 7</span> <span
class="comment">// with the License. You may obtain a copy of the License
at</span></div><div class="line"><a name="l00008"></a><span class="lineno">
8</span> <span class="comment">//</span></div><div class="line"><a
name="l00009"></a><span class="lineno"> 9</span> <span
class="comment">//
http://www.apache.org/licenses/LICENSE-2.0</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">// Unless required by
applicable law or agreed to in writing,</span></div><div class="line"><a
name="l00012"></a><span class="lineno"> 12</span> <span
class="comment">// software distributed unde
r the License is distributed on an</span></div><div class="line"><a
name="l00013"></a><span class="lineno"> 13</span> <span
class="comment">// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
ANY</span></div><div class="line"><a name="l00014"></a><span class="lineno">
14</span> <span class="comment">// KIND, either express or implied. See
the License for the</span></div><div class="line"><a name="l00015"></a><span
class="lineno"> 15</span> <span class="comment">// specific language
governing permissions and limitations</span></div><div class="line"><a
name="l00016"></a><span class="lineno"> 16</span> <span
class="comment">// under the License.</span></div><div class="line"><a
name="l00017"></a><span class="lineno"> 17</span> </div><div
class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span
class="preprocessor">#ifndef ARROW_IO_HDFS</span></div><div class="line"><a
name="l00019"></a><span class="lineno"> 19</sp
an> <span class="preprocessor">#define ARROW_IO_HDFS</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
<cstdint></span></div><div class="line"><a name="l00022"></a><span
class="lineno"> 22</span> <span class="preprocessor">#include
<memory></span></div><div class="line"><a name="l00023"></a><span
class="lineno"> 23</span> <span class="preprocessor">#include
<string></span></div><div class="line"><a name="l00024"></a><span
class="lineno"> 24</span> <span class="preprocessor">#include
<vector></span></div><div class="line"><a name="l00025"></a><span
class="lineno"> 25</span> </div><div class="line"><a
name="l00026"></a><span class="lineno"> 26</span> <span
class="preprocessor">#include "<a class="code"
href="interfaces_8h.html">arrow/io/interfaces.h</a>"<
/span></div><div class="line"><a name="l00027"></a><span class="lineno">
27</span> <span class="preprocessor">#include "<a class="code"
href="macros_8h.html">arrow/util/macros.h</a>"</span></div><div
class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span
class="preprocessor">#include "<a class="code"
href="visibility_8h.html">arrow/util/visibility.h</a>"</span></div><div
class="line"><a name="l00029"></a><span class="lineno">
29</span> </div><div class="line"><a name="l00030"></a><span
class="lineno"> 30</span> <span class="keyword">namespace </span><a
class="code" href="namespacearrow.html">arrow</a> {</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="keyword">class </span>Buffer;</div><div class="line"><a
name="l00033"></a><span class="lineno"> 33</span> <span
class="keyword">class
</span>MemoryPool;</div><div class="line"><a name="l00034"></a><span
class="lineno"> 34</span> <span class="keyword">class
</span>Status;</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="keyword">namespace </span>io {</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="keyword">class </span>HdfsReadableFile;</div><div class="line"><a
name="l00039"></a><span class="lineno"> 39</span> <span
class="keyword">class </span>HdfsOutputStream;</div><div class="line"><a
name="l00040"></a><span class="lineno"> 40</span> </div><div
class="line"><a name="l00041"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html"> 41</a></span> <span
class="keyword">struct </span><a class="cod
e" href="structarrow_1_1io_1_1_hdfs_path_info.html">HdfsPathInfo</a>
{</div><div class="line"><a name="l00042"></a><span class="lineno"><a
class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a67b9d0b55631b6bd151776af3c65bcdd">
42</a></span>  <a class="code"
href="structarrow_1_1io_1_1_object_type.html#a1058f546342de12b2b2ade7410f4de7a">ObjectType::type</a>
<a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a67b9d0b55631b6bd151776af3c65bcdd">kind</a>;</div><div
class="line"><a name="l00043"></a><span class="lineno">
43</span> </div><div class="line"><a name="l00044"></a><span
class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a07eb11cbce0126aa2d4f754bae91c8b3">
44</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a07eb11cbce0126aa2d4f754bae91c8b3">name</a>;</div><div
class="line"><a name="l00045"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_
info.html#a4d1e5aa6d3c36115c3d22dc6169c1a15"> 45</a></span> 
std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a4d1e5aa6d3c36115c3d22dc6169c1a15">owner</a>;</div><div
class="line"><a name="l00046"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a514410f3fe5cc683e33b5dd0d6c837dc">
46</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a514410f3fe5cc683e33b5dd0d6c837dc">group</a>;</div><div
class="line"><a name="l00047"></a><span class="lineno">
47</span> </div><div class="line"><a name="l00048"></a><span
class="lineno"> 48</span>  <span class="comment">// Access times in
UNIX timestamps (seconds)</span></div><div class="line"><a
name="l00049"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#ace8b31928fa6af87401eabf072380af7">
49</a></span>  int64_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_inf
o.html#ace8b31928fa6af87401eabf072380af7">size</a>;</div><div class="line"><a
name="l00050"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#ad9d5d9dd17992865ba646a3c2d2064e0">
50</a></span>  int64_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#ad9d5d9dd17992865ba646a3c2d2064e0">block_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"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a209165368b934ff9775dc40a96319152">
52</a></span>  int32_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a209165368b934ff9775dc40a96319152">last_modified_time</a>;</div><div
class="line"><a name="l00053"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a614821e49ed4cfb27669cbbdf19219ab">
53</a></span>  int32_t <a class="code" href="structarrow_1
_1io_1_1_hdfs_path_info.html#a614821e49ed4cfb27669cbbdf19219ab">last_access_time</a>;</div><div
class="line"><a name="l00054"></a><span class="lineno">
54</span> </div><div class="line"><a name="l00055"></a><span
class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a3b2fcdb2a344f54080c9b67de4bda71c">
55</a></span>  int16_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a3b2fcdb2a344f54080c9b67de4bda71c">replication</a>;</div><div
class="line"><a name="l00056"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#af52863d30be7e7fbf0f3e419853d78ac">
56</a></span>  int16_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#af52863d30be7e7fbf0f3e419853d78ac">permissions</a>;</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> </div><div class="line"><a name="l
00059"></a><span class="lineno"><a class="line"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1">
59</a></span> <span class="keyword">enum class</span> <a class="code"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1">HdfsDriver</a>
: char { <a class="code"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1ac9d3368d068a258ae32291e662fd182c">LIBHDFS</a>,
<a class="code"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1a642a298f2455dac5335f24b4450ddb02">LIBHDFS3</a>
};</div><div class="line"><a name="l00060"></a><span class="lineno">
60</span> </div><div class="line"><a name="l00061"></a><span
class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html">
61</a></span> <span class="keyword">struct </span><a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html">HdfsConnectionConfig</a>
{</div><div class="line"><a name="l00062"></a><span class="lineno"><a clas
s="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#a9385f8c5533c7bc031a002ff4a1f1b12">
62</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#a9385f8c5533c7bc031a002ff4a1f1b12">host</a>;</div><div
class="line"><a name="l00063"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#ade93c1d9226f3725e225db43d7f24f14">
63</a></span>  <span class="keywordtype">int</span> <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#ade93c1d9226f3725e225db43d7f24f14">port</a>;</div><div
class="line"><a name="l00064"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#a14e2d5125e7f6a279f9dd3d860606601">
64</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#a14e2d5125e7f6a279f9dd3d860606601">user</a>;</div><div
class="line"><a name="l00065"></a><span class="lineno"><a c
lass="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#afff850aed45fa5726af4f9af3db9f427">
65</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#afff850aed45fa5726af4f9af3db9f427">kerb_ticket</a>;</div><div
class="line"><a name="l00066"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#ab780754ce4e655edb1545ff9cb203d06">
66</a></span>  <a class="code"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1">HdfsDriver</a>
<a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#ab780754ce4e655edb1545ff9cb203d06">driver</a>;</div><div
class="line"><a name="l00067"></a><span class="lineno">
67</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"><a class="line"
href="classarrow_1_1io_1_1_hadoop_file_system.html"> 69</a></span>&#
160;<span class="keyword">class </span>ARROW_EXPORT <a class="code"
href="classarrow_1_1io_1_1_hadoop_file_system.html">HadoopFileSystem</a> :
<span class="keyword">public</span> <a class="code"
href="classarrow_1_1io_1_1_file_system.html">FileSystem</a> {</div><div
class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span
class="keyword">public</span>:</div><div class="line"><a
name="l00071"></a><span class="lineno"> 71</span>  ~<a class="code"
href="classarrow_1_1io_1_1_hadoop_file_system.html">HadoopFileSystem</a>();</div><div
class="line"><a name="l00072"></a><span class="lineno">
72</span> </div><div class="line"><a name="l00073"></a><span
class="lineno"> 73</span>  <span class="comment">// Connect to an HDFS
cluster given a configuration</span></div><div class="line"><a
name="l00074"></a><span class="lineno"> 74</span>  <span
class="comment">//</span></div><div class="line"><a name="l00075"></a><span
class="lineno"> 75</sp
an>  <span class="comment">// @param config (in): configuration for
connecting</span></div><div class="line"><a name="l00076"></a><span
class="lineno"> 76</span>  <span class="comment">// @param fs (out):
the created client</span></div><div class="line"><a name="l00077"></a><span
class="lineno"> 77</span>  <span class="comment">// @returns
Status</span></div><div class="line"><a name="l00078"></a><span class="lineno">
78</span>  <span class="keyword">static</span> <a class="code"
href="classarrow_1_1_status.html">Status</a> Connect(<span
class="keyword">const</span> <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html">HdfsConnectionConfig</a>*
config,</div><div class="line"><a name="l00079"></a><span class="lineno">
79</span>  std::shared_ptr<HadoopFileSystem>*
fs);</div><div class="line"><a name="l00080"></a><span class="lineno">
80</span> </div><div class="line"><a name="l00081"></a><span
class="lineno"> 81</span>  <span class="comment">// Create directory
and all parents</span></div><div class="line"><a name="l00082"></a><span
class="lineno"> 82</span>  <span class="comment">//</span></div><div
class="line"><a name="l00083"></a><span class="lineno"> 83</span> 
<span class="comment">// @param path (in): absolute HDFS path</span></div><div
class="line"><a name="l00084"></a><span class="lineno"> 84</span> 
<span class="comment">// @returns Status</span></div><div class="line"><a
name="l00085"></a><span class="lineno"> 85</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> MakeDirectory(<span
class="keyword">const</span> std::string& path) <span
class="keyword">override</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> 
<span class="comment">// Delete file or directory</span></div><div
class="line"><a name="l00088"></a><span class="lineno"> 88</span> 
<span class="comment">// @param path: absolute path to data</span></div><div
class="line"><a name="l00089"></a><span class="lineno"> 89</span> 
<span class="comment">// @param recursive: if path is a directory, delete
contents as well</span></div><div class="line"><a name="l00090"></a><span
class="lineno"> 90</span>  <span class="comment">// @returns error
status on failure</span></div><div class="line"><a name="l00091"></a><span
class="lineno"> 91</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Delete(<span
class="keyword">const</span> std::string& path, <span
class="keywordtype">bool</span> recursive = <span
class="keyword">false</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>  <a
class="code" href="classarrow_1_1_status.html">Statu
s</a> DeleteDirectory(<span class="keyword">const</span> std::string&
path) <span class="keyword">override</span>;</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> 
<span class="comment">// Disconnect from cluster</span></div><div
class="line"><a name="l00096"></a><span class="lineno"> 96</span> 
<span class="comment">//</span></div><div class="line"><a
name="l00097"></a><span class="lineno"> 97</span>  <span
class="comment">// @returns Status</span></div><div class="line"><a
name="l00098"></a><span class="lineno"> 98</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Disconnect();</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>  <span class="comment">// @param path (in):
absolute HDFS path</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> 
<span class="comment">// @returns bool, true if the path exists, false if not
(or on error)</span></div><div class="line"><a name="l00102"></a><span
class="lineno"> 102</span>  <span class="keywordtype">bool</span>
Exists(<span class="keyword">const</span> std::string& path);</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>  <span class="comment">// @param path (in):
absolute HDFS path</span></div><div class="line"><a name="l00105"></a><span
class="lineno"> 105</span>  <span class="comment">// @param info
(out)</span></div><div class="line"><a name="l00106"></a><span class="lineno">
106</span>  <span class="comment">// @returns Status</span></div><div
class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <a
class="code" href="classarrow_1_1_s
tatus.html">Status</a> GetPathInfo(<span class="keyword">const</span>
std::string& path, <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html">HdfsPathInfo</a>*
info);</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>  <span class="comment">// @param nbytes
(out): total capacity of the filesystem</span></div><div class="line"><a
name="l00110"></a><span class="lineno"> 110</span>  <span
class="comment">// @returns Status</span></div><div class="line"><a
name="l00111"></a><span class="lineno"> 111</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> GetCapacity(int64_t*
nbytes);</div><div class="line"><a name="l00112"></a><span class="lineno">
112</span> </div><div class="line"><a name="l00113"></a><span
class="lineno"> 113</span>  <span class="comment">// @param nbytes
(out): total bytes used of the filesystem<
/span></div><div class="line"><a name="l00114"></a><span class="lineno">
114</span>  <span class="comment">// @returns Status</span></div><div
class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> GetUsed(int64_t*
nbytes);</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>  <a class="code"
href="classarrow_1_1_status.html">Status</a> GetChildren(<span
class="keyword">const</span> std::string& path,
std::vector<std::string>* listing) <span
class="keyword">override</span>;</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>  <a
class="code" href="classarrow_1_1_status.html">Status</a> ListDirectory(<span
class="keyword">const</span> std::string& path, std
::vector<HdfsPathInfo>* listing);</div><div class="line"><a
name="l00120"></a><span class="lineno"> 120</span> </div><div
class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Chown(<span
class="keyword">const</span> std::string& path, <span
class="keyword">const</span> <span class="keywordtype">char</span>* owner,
<span class="keyword">const</span> <span class="keywordtype">char</span>*
group);</div><div class="line"><a name="l00127"></a><span class="lineno">
127</span> </div><div class="line"><a name="l00133"></a><span
class="lineno"> 133</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Chmod(<span
class="keyword">const</span> std::string& path, <span
class="keywordtype">int</span> mode);</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>&
#160; <span class="comment">// Move file or directory from source path to
destination path within the</span></div><div class="line"><a
name="l00136"></a><span class="lineno"> 136</span>  <span
class="comment">// current filesystem</span></div><div class="line"><a
name="l00137"></a><span class="lineno"> 137</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Rename(<span
class="keyword">const</span> std::string& src, <span
class="keyword">const</span> std::string& dst) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00138"></a><span class="lineno"> 138</span> </div><div
class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Stat(<span
class="keyword">const</span> std::string& path, <a class="code"
href="structarrow_1_1io_1_1_file_statistics.html">FileStatistics</a>* stat)
<span class="keyword">override</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">// TODO(wesm): GetWorkingDirectory,
SetWorkingDirectory</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>  <span
class="comment">// Open an HDFS file in READ mode. Returns
error</span></div><div class="line"><a name="l00144"></a><span class="lineno">
144</span>  <span class="comment">// status if the file is not
found.</span></div><div class="line"><a name="l00145"></a><span class="lineno">
145</span>  <span class="comment">//</span></div><div class="line"><a
name="l00146"></a><span class="lineno"> 146</span>  <span
class="comment">// @param path complete file path</span></div><div
class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a
class="code" h
ref="classarrow_1_1_status.html">Status</a> OpenReadable(<span
class="keyword">const</span> std::string& path, int32_t
buffer_size,</div><div class="line"><a name="l00148"></a><span class="lineno">
148</span>  std::shared_ptr<HdfsReadableFile>*
file);</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>  <a class="code"
href="classarrow_1_1_status.html">Status</a> OpenReadable(<span
class="keyword">const</span> std::string& path,
std::shared_ptr<HdfsReadableFile>* file);</div><div class="line"><a
name="l00151"></a><span class="lineno"> 151</span> </div><div
class="line"><a name="l00152"></a><span class="lineno"> 152</span> 
<span class="comment">// FileMode::WRITE options</span></div><div
class="line"><a name="l00153"></a><span class="lineno"> 153</span> 
<span class="comment">// @param path complete fil
e path</span></div><div class="line"><a name="l00154"></a><span
class="lineno"> 154</span>  <span class="comment">// @param buffer_size,
0 for default</span></div><div class="line"><a name="l00155"></a><span
class="lineno"> 155</span>  <span class="comment">// @param replication,
0 for default</span></div><div class="line"><a name="l00156"></a><span
class="lineno"> 156</span>  <span class="comment">// @param
default_block_size, 0 for default</span></div><div class="line"><a
name="l00157"></a><span class="lineno"> 157</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> OpenWriteable(<span
class="keyword">const</span> std::string& path, <span
class="keywordtype">bool</span> append, int32_t buffer_size,</div><div
class="line"><a name="l00158"></a><span class="lineno"> 158</span> 
int16_t replication, int64_t default_block_size,</div><div
class="line"><a name="l00159"></a><span class="lineno"> 159</span> 
std::shared_ptr<HdfsOutputStream>*
file);</div><div class="line"><a name="l00160"></a><span class="lineno">
160</span> </div><div class="line"><a name="l00161"></a><span
class="lineno"> 161</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> OpenWriteable(<span
class="keyword">const</span> std::string& path, <span
class="keywordtype">bool</span> append,</div><div class="line"><a
name="l00162"></a><span class="lineno"> 162</span> 
std::shared_ptr<HdfsOutputStream>* file);</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="keyword">private</span>:</div><div class="line"><a
name="l00165"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hadoop_file_system.html#abc3f23e36cc88efe1f401afcc40e7d7c">
165</a></span>  <span class="keyword">frien
d</span> <span class="keyword">class </span><a class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a>;</div><div
class="line"><a name="l00166"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hadoop_file_system.html#aef44a7003c7ed4574da8ada762c967aa">
166</a></span>  <span class="keyword">friend</span> <span
class="keyword">class </span><a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a>;</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>  <span class="keyword">class </span><a
class="code"
href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a>
HadoopFileSystemImpl;</div><div class="line"><a name="l00169"></a><span
class="lineno"> 169</span>  std::unique_ptr<HadoopFileSystemImpl>
impl_;</div><div class="line"><a name="l00170"></a><span cla
ss="lineno"> 170</span> </div><div class="line"><a
name="l00171"></a><span class="lineno"> 171</span>  <a class="code"
href="classarrow_1_1io_1_1_hadoop_file_system.html">HadoopFileSystem</a>();</div><div
class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a
class="code"
href="macros_8h.html#a40d72e185b1488b5659b761f0b6115bb">ARROW_DISALLOW_COPY_AND_ASSIGN</a>(<a
class="code"
href="classarrow_1_1io_1_1_hadoop_file_system.html">HadoopFileSystem</a>);</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> </div><div class="line"><a
name="l00175"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hdfs_readable_file.html"> 175</a></span> <span
class="keyword">class </span>ARROW_EXPORT <a class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a> :
<span class="keyword">public</span> <a cla
ss="code"
href="classarrow_1_1io_1_1_random_access_file.html">RandomAccessFile</a>
{</div><div class="line"><a name="l00176"></a><span class="lineno">
176</span>  <span class="keyword">public</span>:</div><div class="line"><a
name="l00177"></a><span class="lineno"> 177</span>  ~<a class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a>();</div><div
class="line"><a name="l00178"></a><span class="lineno">
178</span> </div><div class="line"><a name="l00179"></a><span
class="lineno"> 179</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Close() <span
class="keyword">override</span>;</div><div class="line"><a
name="l00180"></a><span class="lineno"> 180</span> </div><div
class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> GetSize(int64_t*
size) <span class="keyword">override</span>;</div><div class="line"><a
name="l00182"></a>
<span class="lineno"> 182</span> </div><div class="line"><a
name="l00183"></a><span class="lineno"> 183</span>  <span
class="comment">// NOTE: If you wish to read a particular range of a file in a
multithreaded</span></div><div class="line"><a name="l00184"></a><span
class="lineno"> 184</span>  <span class="comment">// context, you may
prefer to use ReadAt to avoid locking issues</span></div><div class="line"><a
name="l00185"></a><span class="lineno"> 185</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Read(int64_t nbytes, int64_t*
bytes_read, <span class="keywordtype">void</span>* buffer) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00186"></a><span class="lineno"> 186</span> </div><div
class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Read(int64_t nbytes,
std::shared_ptr<Buffer>* out) <span class="keyword">over
ride</span>;</div><div class="line"><a name="l00188"></a><span class="lineno">
188</span> </div><div class="line"><a name="l00189"></a><span
class="lineno"> 189</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> ReadAt(int64_t position, int64_t
nbytes, int64_t* bytes_read,</div><div class="line"><a name="l00190"></a><span
class="lineno"> 190</span>  <span
class="keywordtype">void</span>* buffer) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00191"></a><span class="lineno"> 191</span> </div><div
class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> ReadAt(int64_t
position, int64_t nbytes, std::shared_ptr<Buffer>* out) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00193"></a><span class="lineno"> 193</span> </div><div
class="line"><a name="l00194"></a><span class="lineno"> 194</span>
  <span class="keywordtype">bool</span> supports_zero_copy() <span
class="keyword">const override</span>;</div><div class="line"><a
name="l00195"></a><span class="lineno"> 195</span> </div><div
class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Seek(int64_t
position) <span class="keyword">override</span>;</div><div class="line"><a
name="l00197"></a><span class="lineno"> 197</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Tell(int64_t* position) <span
class="keyword">const override</span>;</div><div class="line"><a
name="l00198"></a><span class="lineno"> 198</span> </div><div
class="line"><a name="l00199"></a><span class="lineno"> 199</span> 
<span class="keywordtype">void</span> set_memory_pool(<a class="code"
href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool);</div><div
class="line"><a name="l00200"></a><span class="lineno"> 200</span>
 </div><div class="line"><a name="l00201"></a><span class="lineno">
201</span>  <span class="keyword">private</span>:</div><div
class="line"><a name="l00202"></a><span class="lineno"> 202</span> 
<span class="keyword">explicit</span> <a class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a>(<a
class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool = <a
class="code"
href="macros_8h.html#a3ef7eab8cd0e570b6586628cc9d5ccab">NULLPTR</a>);</div><div
class="line"><a name="l00203"></a><span class="lineno">
203</span> </div><div class="line"><a name="l00204"></a><span
class="lineno"> 204</span>  <span class="keyword">class </span><a
class="code"
href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a>
HdfsReadableFileImpl;</div><div class="line"><a name="l00205"></a><span
class="lineno"> 205</span>  std::unique_ptr<HdfsReadableFileImpl>
impl_;</div><div class="line"><a name="l0
0206"></a><span class="lineno"> 206</span> </div><div class="line"><a
name="l00207"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hdfs_readable_file.html#a2c0e64271cef9799af36654b4b0e4604">
207</a></span>  <span class="keyword">friend</span> <span
class="keyword">class </span>HadoopFileSystem::HadoopFileSystemImpl;</div><div
class="line"><a name="l00208"></a><span class="lineno">
208</span> </div><div class="line"><a name="l00209"></a><span
class="lineno"> 209</span>  <a class="code"
href="macros_8h.html#a40d72e185b1488b5659b761f0b6115bb">ARROW_DISALLOW_COPY_AND_ASSIGN</a>(<a
class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a>);</div><div
class="line"><a name="l00210"></a><span class="lineno">
210</span> };</div><div class="line"><a name="l00211"></a><span
class="lineno"> 211</span> </div><div class="line"><a
name="l00212"></a><span class="lineno"> 212</span> <span
class="comment">//
Naming this file OutputStream because it does not support seeking (like
the</span></div><div class="line"><a name="l00213"></a><span class="lineno">
213</span> <span class="comment">// WriteableFile
interface)</span></div><div class="line"><a name="l00214"></a><span
class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hdfs_output_stream.html"> 214</a></span> <span
class="keyword">class </span>ARROW_EXPORT <a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a> :
<span class="keyword">public</span> <a class="code"
href="classarrow_1_1io_1_1_output_stream.html">OutputStream</a> {</div><div
class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span
class="keyword">public</span>:</div><div class="line"><a
name="l00216"></a><span class="lineno"> 216</span>  ~<a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a>();</div><div
class="line"><a name="l00217"></a><span class="lineno
"> 217</span> </div><div class="line"><a name="l00218"></a><span
class="lineno"> 218</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Close() <span
class="keyword">override</span>;</div><div class="line"><a
name="l00219"></a><span class="lineno"> 219</span> </div><div
class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Write(<span
class="keyword">const</span> <span class="keywordtype">void</span>* buffer,
int64_t nbytes) <span class="keyword">override</span>;</div><div
class="line"><a name="l00221"></a><span class="lineno">
221</span> </div><div class="line"><a name="l00222"></a><span
class="lineno"> 222</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Write(<span
class="keyword">const</span> <span class="keywordtype">void</span>* buffer,
int64_t nbytes, int64_t* bytes_written);</div><div class="line"><a
name="l00223"></a><span c
lass="lineno"> 223</span> </div><div class="line"><a
name="l00224"></a><span class="lineno"> 224</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Flush() <span
class="keyword">override</span>;</div><div class="line"><a
name="l00225"></a><span class="lineno"> 225</span> </div><div
class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Tell(int64_t*
position) <span class="keyword">const override</span>;</div><div
class="line"><a name="l00227"></a><span class="lineno">
227</span> </div><div class="line"><a name="l00228"></a><span
class="lineno"> 228</span>  <span
class="keyword">private</span>:</div><div class="line"><a
name="l00229"></a><span class="lineno"> 229</span>  <span
class="keyword">class </span><a class="code"
href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a>
HdfsOutputStreamImpl;</div><div class="line"><a na
me="l00230"></a><span class="lineno"> 230</span> 
std::unique_ptr<HdfsOutputStreamImpl> impl_;</div><div class="line"><a
name="l00231"></a><span class="lineno"> 231</span> </div><div
class="line"><a name="l00232"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hdfs_output_stream.html#a2c0e64271cef9799af36654b4b0e4604">
232</a></span>  <span class="keyword">friend</span> <span
class="keyword">class </span>HadoopFileSystem::HadoopFileSystemImpl;</div><div
class="line"><a name="l00233"></a><span class="lineno">
233</span> </div><div class="line"><a name="l00234"></a><span
class="lineno"> 234</span>  <a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a>();</div><div
class="line"><a name="l00235"></a><span class="lineno">
235</span> </div><div class="line"><a name="l00236"></a><span
class="lineno"> 236</span>  <a class="code"
href="macros_8h.html#a40d72e185b1488b5659b761f0b6115bb">A
RROW_DISALLOW_COPY_AND_ASSIGN</a>(<a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a>);</div><div
class="line"><a name="l00237"></a><span class="lineno">
237</span> };</div><div class="line"><a name="l00238"></a><span
class="lineno"> 238</span> </div><div class="line"><a
name="l00239"></a><span class="lineno"> 239</span> <a class="code"
href="classarrow_1_1_status.html">Status</a> ARROW_EXPORT <a class="code"
href="namespacearrow_1_1io.html#a559bc6c902e7879baa1713f4de2b4639">HaveLibHdfs</a>();</div><div
class="line"><a name="l00240"></a><span class="lineno"> 240</span> <a
class="code" href="classarrow_1_1_status.html">Status</a> ARROW_EXPORT <a
class="code"
href="namespacearrow_1_1io.html#a9d672a377318a5a33081c2f52c4571f6">HaveLibHdfs3</a>();</div><div
class="line"><a name="l00241"></a><span class="lineno">
241</span> </div><div class="line"><a name="l00242"></a><span
class="lineno"> 242</span> } <span class="
comment">// namespace io</span></div><div class="line"><a
name="l00243"></a><span class="lineno"> 243</span> } <span
class="comment">// namespace arrow</span></div><div class="line"><a
name="l00244"></a><span class="lineno"> 244</span> </div><div
class="line"><a name="l00245"></a><span class="lineno"> 245</span> <span
class="preprocessor">#endif // ARROW_IO_HDFS</span></div><div class="ttc"
id="structarrow_1_1io_1_1_hdfs_path_info_html_a209165368b934ff9775dc40a96319152"><div
class="ttname"><a
href="structarrow_1_1io_1_1_hdfs_path_info.html#a209165368b934ff9775dc40a96319152">arrow::io::HdfsPathInfo::last_modified_time</a></div><div
class="ttdeci">int32_t last_modified_time</div><div
class="ttdef"><b>Definition:</b> hdfs.h:52</div></div>
+<a href="hdfs_8h.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 to the Apache Software
Foundation (ASF) under one</span></div><div class="line"><a
name="l00002"></a><span class="lineno"> 2</span> <span
class="comment">// or more contributor license agreements. See the NOTICE
file</span></div><div class="line"><a name="l00003"></a><span class="lineno">
3</span> <span class="comment">// distributed with this work for
additional information</span></div><div class="line"><a name="l00004"></a><span
class="lineno"> 4</span> <span class="comment">// regarding copyright
ownership. The ASF licenses this file</span></div><div class="line"><a
name="l00005"></a><span class="lineno"> 5</span> <span
class="comment">// to you under the Apache License, Version 2.0
(the</span></div><div class="line"><a name="l00006"></a><span class="l
ineno"> 6</span> <span class="comment">// "License"); you
may not use this file except in compliance</span></div><div class="line"><a
name="l00007"></a><span class="lineno"> 7</span> <span
class="comment">// with the License. You may obtain a copy of the License
at</span></div><div class="line"><a name="l00008"></a><span class="lineno">
8</span> <span class="comment">//</span></div><div class="line"><a
name="l00009"></a><span class="lineno"> 9</span> <span
class="comment">//
http://www.apache.org/licenses/LICENSE-2.0</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">// Unless required by
applicable law or agreed to in writing,</span></div><div class="line"><a
name="l00012"></a><span class="lineno"> 12</span> <span
class="comment">// software distributed unde
r the License is distributed on an</span></div><div class="line"><a
name="l00013"></a><span class="lineno"> 13</span> <span
class="comment">// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
ANY</span></div><div class="line"><a name="l00014"></a><span class="lineno">
14</span> <span class="comment">// KIND, either express or implied. See
the License for the</span></div><div class="line"><a name="l00015"></a><span
class="lineno"> 15</span> <span class="comment">// specific language
governing permissions and limitations</span></div><div class="line"><a
name="l00016"></a><span class="lineno"> 16</span> <span
class="comment">// under the License.</span></div><div class="line"><a
name="l00017"></a><span class="lineno"> 17</span> </div><div
class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span
class="preprocessor">#ifndef ARROW_IO_HDFS</span></div><div class="line"><a
name="l00019"></a><span class="lineno"> 19</sp
an> <span class="preprocessor">#define ARROW_IO_HDFS</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
<cstdint></span></div><div class="line"><a name="l00022"></a><span
class="lineno"> 22</span> <span class="preprocessor">#include
<memory></span></div><div class="line"><a name="l00023"></a><span
class="lineno"> 23</span> <span class="preprocessor">#include
<string></span></div><div class="line"><a name="l00024"></a><span
class="lineno"> 24</span> <span class="preprocessor">#include
<vector></span></div><div class="line"><a name="l00025"></a><span
class="lineno"> 25</span> </div><div class="line"><a
name="l00026"></a><span class="lineno"> 26</span> <span
class="preprocessor">#include "<a class="code"
href="interfaces_8h.html">arrow/io/interfaces.h</a>"<
/span></div><div class="line"><a name="l00027"></a><span class="lineno">
27</span> <span class="preprocessor">#include "<a class="code"
href="macros_8h.html">arrow/util/macros.h</a>"</span></div><div
class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span
class="preprocessor">#include "<a class="code"
href="visibility_8h.html">arrow/util/visibility.h</a>"</span></div><div
class="line"><a name="l00029"></a><span class="lineno">
29</span> </div><div class="line"><a name="l00030"></a><span
class="lineno"> 30</span> <span class="keyword">namespace </span><a
class="code" href="namespacearrow.html">arrow</a> {</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="keyword">class </span>Buffer;</div><div class="line"><a
name="l00033"></a><span class="lineno"> 33</span> <span
class="keyword">class
</span>MemoryPool;</div><div class="line"><a name="l00034"></a><span
class="lineno"> 34</span> <span class="keyword">class
</span>Status;</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="keyword">namespace </span>io {</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="keyword">class </span>HdfsReadableFile;</div><div class="line"><a
name="l00039"></a><span class="lineno"> 39</span> <span
class="keyword">class </span>HdfsOutputStream;</div><div class="line"><a
name="l00040"></a><span class="lineno"> 40</span> </div><div
class="line"><a name="l00041"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html"> 41</a></span> <span
class="keyword">struct </span><a class="cod
e" href="structarrow_1_1io_1_1_hdfs_path_info.html">HdfsPathInfo</a>
{</div><div class="line"><a name="l00042"></a><span class="lineno"><a
class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a67b9d0b55631b6bd151776af3c65bcdd">
42</a></span>  <a class="code"
href="structarrow_1_1io_1_1_object_type.html#a1058f546342de12b2b2ade7410f4de7a">ObjectType::type</a>
<a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a67b9d0b55631b6bd151776af3c65bcdd">kind</a>;</div><div
class="line"><a name="l00043"></a><span class="lineno">
43</span> </div><div class="line"><a name="l00044"></a><span
class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a07eb11cbce0126aa2d4f754bae91c8b3">
44</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a07eb11cbce0126aa2d4f754bae91c8b3">name</a>;</div><div
class="line"><a name="l00045"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_
info.html#a4d1e5aa6d3c36115c3d22dc6169c1a15"> 45</a></span> 
std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a4d1e5aa6d3c36115c3d22dc6169c1a15">owner</a>;</div><div
class="line"><a name="l00046"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a514410f3fe5cc683e33b5dd0d6c837dc">
46</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a514410f3fe5cc683e33b5dd0d6c837dc">group</a>;</div><div
class="line"><a name="l00047"></a><span class="lineno">
47</span> </div><div class="line"><a name="l00048"></a><span
class="lineno"> 48</span>  <span class="comment">// Access times in
UNIX timestamps (seconds)</span></div><div class="line"><a
name="l00049"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#ace8b31928fa6af87401eabf072380af7">
49</a></span>  int64_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_inf
o.html#ace8b31928fa6af87401eabf072380af7">size</a>;</div><div class="line"><a
name="l00050"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#ad9d5d9dd17992865ba646a3c2d2064e0">
50</a></span>  int64_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#ad9d5d9dd17992865ba646a3c2d2064e0">block_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"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a209165368b934ff9775dc40a96319152">
52</a></span>  int32_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a209165368b934ff9775dc40a96319152">last_modified_time</a>;</div><div
class="line"><a name="l00053"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a614821e49ed4cfb27669cbbdf19219ab">
53</a></span>  int32_t <a class="code" href="structarrow_1
_1io_1_1_hdfs_path_info.html#a614821e49ed4cfb27669cbbdf19219ab">last_access_time</a>;</div><div
class="line"><a name="l00054"></a><span class="lineno">
54</span> </div><div class="line"><a name="l00055"></a><span
class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a3b2fcdb2a344f54080c9b67de4bda71c">
55</a></span>  int16_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#a3b2fcdb2a344f54080c9b67de4bda71c">replication</a>;</div><div
class="line"><a name="l00056"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_path_info.html#af52863d30be7e7fbf0f3e419853d78ac">
56</a></span>  int16_t <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html#af52863d30be7e7fbf0f3e419853d78ac">permissions</a>;</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> </div><div class="line"><a name="l
00059"></a><span class="lineno"><a class="line"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1">
59</a></span> <span class="keyword">enum class</span> <a class="code"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1">HdfsDriver</a>
: char { <a class="code"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1ac9d3368d068a258ae32291e662fd182c">LIBHDFS</a>,
<a class="code"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1a642a298f2455dac5335f24b4450ddb02">LIBHDFS3</a>
};</div><div class="line"><a name="l00060"></a><span class="lineno">
60</span> </div><div class="line"><a name="l00061"></a><span
class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html">
61</a></span> <span class="keyword">struct </span><a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html">HdfsConnectionConfig</a>
{</div><div class="line"><a name="l00062"></a><span class="lineno"><a clas
s="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#a9385f8c5533c7bc031a002ff4a1f1b12">
62</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#a9385f8c5533c7bc031a002ff4a1f1b12">host</a>;</div><div
class="line"><a name="l00063"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#ade93c1d9226f3725e225db43d7f24f14">
63</a></span>  <span class="keywordtype">int</span> <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#ade93c1d9226f3725e225db43d7f24f14">port</a>;</div><div
class="line"><a name="l00064"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#a14e2d5125e7f6a279f9dd3d860606601">
64</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#a14e2d5125e7f6a279f9dd3d860606601">user</a>;</div><div
class="line"><a name="l00065"></a><span class="lineno"><a c
lass="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#afff850aed45fa5726af4f9af3db9f427">
65</a></span>  std::string <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#afff850aed45fa5726af4f9af3db9f427">kerb_ticket</a>;</div><div
class="line"><a name="l00066"></a><span class="lineno"><a class="line"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#ab780754ce4e655edb1545ff9cb203d06">
66</a></span>  <a class="code"
href="namespacearrow_1_1io.html#a35a5e7eb719b817f90642dc6588f8ec1">HdfsDriver</a>
<a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html#ab780754ce4e655edb1545ff9cb203d06">driver</a>;</div><div
class="line"><a name="l00067"></a><span class="lineno">
67</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"><a class="line"
href="classarrow_1_1io_1_1_hadoop_file_system.html"> 69</a></span>&#
160;<span class="keyword">class </span>ARROW_EXPORT <a class="code"
href="classarrow_1_1io_1_1_hadoop_file_system.html">HadoopFileSystem</a> :
<span class="keyword">public</span> <a class="code"
href="classarrow_1_1io_1_1_file_system.html">FileSystem</a> {</div><div
class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span
class="keyword">public</span>:</div><div class="line"><a
name="l00071"></a><span class="lineno"> 71</span>  ~<a class="code"
href="classarrow_1_1io_1_1_hadoop_file_system.html">HadoopFileSystem</a>()
<span class="keyword">override</span>;</div><div class="line"><a
name="l00072"></a><span class="lineno"> 72</span> </div><div
class="line"><a name="l00073"></a><span class="lineno"> 73</span> 
<span class="comment">// Connect to an HDFS cluster given a
configuration</span></div><div class="line"><a name="l00074"></a><span
class="lineno"> 74</span>  <span class="comment">//</span></div><div
class="line"><a name="l000
75"></a><span class="lineno"> 75</span>  <span class="comment">//
@param config (in): configuration for connecting</span></div><div
class="line"><a name="l00076"></a><span class="lineno"> 76</span> 
<span class="comment">// @param fs (out): the created client</span></div><div
class="line"><a name="l00077"></a><span class="lineno"> 77</span> 
<span class="comment">// @returns Status</span></div><div class="line"><a
name="l00078"></a><span class="lineno"> 78</span>  <span
class="keyword">static</span> <a class="code"
href="classarrow_1_1_status.html">Status</a> Connect(<span
class="keyword">const</span> <a class="code"
href="structarrow_1_1io_1_1_hdfs_connection_config.html">HdfsConnectionConfig</a>*
config,</div><div class="line"><a name="l00079"></a><span class="lineno">
79</span>  std::shared_ptr<HadoopFileSystem>*
fs);</div><div class="line"><a name="l00080"></a><span class="lineno">
80</span> </div><div cl
ass="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span
class="comment">// Create directory and all parents</span></div><div
class="line"><a name="l00082"></a><span class="lineno"> 82</span> 
<span class="comment">//</span></div><div class="line"><a
name="l00083"></a><span class="lineno"> 83</span>  <span
class="comment">// @param path (in): absolute HDFS path</span></div><div
class="line"><a name="l00084"></a><span class="lineno"> 84</span> 
<span class="comment">// @returns Status</span></div><div class="line"><a
name="l00085"></a><span class="lineno"> 85</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> MakeDirectory(<span
class="keyword">const</span> std::string& path) <span
class="keyword">override</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> 
<span class="comment">// Dele
te file or directory</span></div><div class="line"><a name="l00088"></a><span
class="lineno"> 88</span>  <span class="comment">// @param path:
absolute path to data</span></div><div class="line"><a name="l00089"></a><span
class="lineno"> 89</span>  <span class="comment">// @param recursive:
if path is a directory, delete contents as well</span></div><div
class="line"><a name="l00090"></a><span class="lineno"> 90</span> 
<span class="comment">// @returns error status on failure</span></div><div
class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Delete(<span
class="keyword">const</span> std::string& path, <span
class="keywordtype">bool</span> recursive = <span
class="keyword">false</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>  <a
class="code" h
ref="classarrow_1_1_status.html">Status</a> DeleteDirectory(<span
class="keyword">const</span> std::string& path) <span
class="keyword">override</span>;</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> 
<span class="comment">// Disconnect from cluster</span></div><div
class="line"><a name="l00096"></a><span class="lineno"> 96</span> 
<span class="comment">//</span></div><div class="line"><a
name="l00097"></a><span class="lineno"> 97</span>  <span
class="comment">// @returns Status</span></div><div class="line"><a
name="l00098"></a><span class="lineno"> 98</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Disconnect();</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>  <span class="comment">// @param path
(in): absolute HDFS path</span></div><div class="line"><a
name="l00101"></a><span class="lineno"> 101</span>  <span
class="comment">// @returns bool, true if the path exists, false if not (or on
error)</span></div><div class="line"><a name="l00102"></a><span class="lineno">
102</span>  <span class="keywordtype">bool</span> Exists(<span
class="keyword">const</span> std::string& path);</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> 
<span class="comment">// @param path (in): absolute HDFS path</span></div><div
class="line"><a name="l00105"></a><span class="lineno"> 105</span> 
<span class="comment">// @param info (out)</span></div><div class="line"><a
name="l00106"></a><span class="lineno"> 106</span>  <span
class="comment">// @returns Status</span></div><div class="line"><a
name="l00107"></a><span class="lineno"> 107</span> 
<a class="code" href="classarrow_1_1_status.html">Status</a> GetPathInfo(<span
class="keyword">const</span> std::string& path, <a class="code"
href="structarrow_1_1io_1_1_hdfs_path_info.html">HdfsPathInfo</a>*
info);</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>  <span class="comment">// @param nbytes
(out): total capacity of the filesystem</span></div><div class="line"><a
name="l00110"></a><span class="lineno"> 110</span>  <span
class="comment">// @returns Status</span></div><div class="line"><a
name="l00111"></a><span class="lineno"> 111</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> GetCapacity(int64_t*
nbytes);</div><div class="line"><a name="l00112"></a><span class="lineno">
112</span> </div><div class="line"><a name="l00113"></a><span
class="lineno"> 113</span>  <span class="comment">// @param nbytes (out
): total bytes used of the filesystem</span></div><div class="line"><a
name="l00114"></a><span class="lineno"> 114</span>  <span
class="comment">// @returns Status</span></div><div class="line"><a
name="l00115"></a><span class="lineno"> 115</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> GetUsed(int64_t*
nbytes);</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>  <a class="code"
href="classarrow_1_1_status.html">Status</a> GetChildren(<span
class="keyword">const</span> std::string& path,
std::vector<std::string>* listing) <span
class="keyword">override</span>;</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>  <a
class="code" href="classarrow_1_1_status.html">Status</a> ListDirectory(<span
class="keyword">c
onst</span> std::string& path, std::vector<HdfsPathInfo>*
listing);</div><div class="line"><a name="l00120"></a><span class="lineno">
120</span> </div><div class="line"><a name="l00126"></a><span
class="lineno"> 126</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Chown(<span
class="keyword">const</span> std::string& path, <span
class="keyword">const</span> <span class="keywordtype">char</span>* owner,
<span class="keyword">const</span> <span class="keywordtype">char</span>*
group);</div><div class="line"><a name="l00127"></a><span class="lineno">
127</span> </div><div class="line"><a name="l00133"></a><span
class="lineno"> 133</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Chmod(<span
class="keyword">const</span> std::string& path, <span
class="keywordtype">int</span> mode);</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>  <span class="comment">// Move
file or directory from source path to destination path within
the</span></div><div class="line"><a name="l00136"></a><span class="lineno">
136</span>  <span class="comment">// current filesystem</span></div><div
class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Rename(<span
class="keyword">const</span> std::string& src, <span
class="keyword">const</span> std::string& dst) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00138"></a><span class="lineno"> 138</span> </div><div
class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Stat(<span
class="keyword">const</span> std::string& path, <a class="code"
href="structarrow_1_1io_1_1_file_statistics.html">FileStatistics</a>* stat)
<span class="keyword">
override</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">// TODO(wesm): GetWorkingDirectory,
SetWorkingDirectory</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>  <span
class="comment">// Open an HDFS file in READ mode. Returns
error</span></div><div class="line"><a name="l00144"></a><span class="lineno">
144</span>  <span class="comment">// status if the file is not
found.</span></div><div class="line"><a name="l00145"></a><span class="lineno">
145</span>  <span class="comment">//</span></div><div class="line"><a
name="l00146"></a><span class="lineno"> 146</span>  <span
class="comment">// @param path complete file path</span></div><div
class="line"><a name="l00147"></a><span class="lineno"
> 147</span>  <a class="code"
> href="classarrow_1_1_status.html">Status</a> OpenReadable(<span
> class="keyword">const</span> std::string& path, int32_t
> buffer_size,</div><div class="line"><a name="l00148"></a><span
> class="lineno"> 148</span> 
> std::shared_ptr<HdfsReadableFile>* file);</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> 
> <a class="code" href="classarrow_1_1_status.html">Status</a>
> OpenReadable(<span class="keyword">const</span> std::string& path,
> std::shared_ptr<HdfsReadableFile>* file);</div><div class="line"><a
> name="l00151"></a><span class="lineno"> 151</span> </div><div
> class="line"><a name="l00152"></a><span class="lineno"> 152</span> 
> <span class="comment">// FileMode::WRITE options</span></div><div
> class="line"><a name="l00153"></a><span class="lineno"> 153</span> 
> <span class
="comment">// @param path complete file path</span></div><div class="line"><a
name="l00154"></a><span class="lineno"> 154</span>  <span
class="comment">// @param buffer_size, 0 for default</span></div><div
class="line"><a name="l00155"></a><span class="lineno"> 155</span> 
<span class="comment">// @param replication, 0 for default</span></div><div
class="line"><a name="l00156"></a><span class="lineno"> 156</span> 
<span class="comment">// @param default_block_size, 0 for
default</span></div><div class="line"><a name="l00157"></a><span
class="lineno"> 157</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> OpenWriteable(<span
class="keyword">const</span> std::string& path, <span
class="keywordtype">bool</span> append, int32_t buffer_size,</div><div
class="line"><a name="l00158"></a><span class="lineno"> 158</span> 
int16_t replication, int64_t default_block_size,</div><div
class="line"><a name="l00159"></a><
span class="lineno"> 159</span> 
std::shared_ptr<HdfsOutputStream>* file);</div><div class="line"><a
name="l00160"></a><span class="lineno"> 160</span> </div><div
class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> OpenWriteable(<span
class="keyword">const</span> std::string& path, <span
class="keywordtype">bool</span> append,</div><div class="line"><a
name="l00162"></a><span class="lineno"> 162</span> 
std::shared_ptr<HdfsOutputStream>* file);</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="keyword">private</span>:</div><div class="line"><a
name="l00165"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hadoop_file_system.html#abc3f23e36cc88efe1f401afcc40e7d7c">
165</a></sp
an>  <span class="keyword">friend</span> <span class="keyword">class
</span><a class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a>;</div><div
class="line"><a name="l00166"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hadoop_file_system.html#aef44a7003c7ed4574da8ada762c967aa">
166</a></span>  <span class="keyword">friend</span> <span
class="keyword">class </span><a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a>;</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>  <span class="keyword">class </span><a
class="code"
href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a>
HadoopFileSystemImpl;</div><div class="line"><a name="l00169"></a><span
class="lineno"> 169</span>  std::unique_ptr<HadoopFileSystemImpl>
impl_;</div><div class
="line"><a name="l00170"></a><span class="lineno"> 170</span> </div><div
class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a
class="code"
href="classarrow_1_1io_1_1_hadoop_file_system.html">HadoopFileSystem</a>();</div><div
class="line"><a name="l00172"></a><span class="lineno"> 172</span>  <a
class="code"
href="macros_8h.html#a40d72e185b1488b5659b761f0b6115bb">ARROW_DISALLOW_COPY_AND_ASSIGN</a>(<a
class="code"
href="classarrow_1_1io_1_1_hadoop_file_system.html">HadoopFileSystem</a>);</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> </div><div class="line"><a
name="l00175"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hdfs_readable_file.html"> 175</a></span> <span
class="keyword">class </span>ARROW_EXPORT <a class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a> : <spa
n class="keyword">public</span> <a class="code"
href="classarrow_1_1io_1_1_random_access_file.html">RandomAccessFile</a>
{</div><div class="line"><a name="l00176"></a><span class="lineno">
176</span>  <span class="keyword">public</span>:</div><div class="line"><a
name="l00177"></a><span class="lineno"> 177</span>  ~<a class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a>()
<span class="keyword">override</span>;</div><div class="line"><a
name="l00178"></a><span class="lineno"> 178</span> </div><div
class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Close() <span
class="keyword">override</span>;</div><div class="line"><a
name="l00180"></a><span class="lineno"> 180</span> </div><div
class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> GetSize(int64_t*
size) <span c
lass="keyword">override</span>;</div><div class="line"><a
name="l00182"></a><span class="lineno"> 182</span> </div><div
class="line"><a name="l00183"></a><span class="lineno"> 183</span> 
<span class="comment">// NOTE: If you wish to read a particular range of a file
in a multithreaded</span></div><div class="line"><a name="l00184"></a><span
class="lineno"> 184</span>  <span class="comment">// context, you may
prefer to use ReadAt to avoid locking issues</span></div><div class="line"><a
name="l00185"></a><span class="lineno"> 185</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Read(int64_t nbytes, int64_t*
bytes_read, <span class="keywordtype">void</span>* buffer) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00186"></a><span class="lineno"> 186</span> </div><div
class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Read(in
t64_t nbytes, std::shared_ptr<Buffer>* out) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00188"></a><span class="lineno"> 188</span> </div><div
class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> ReadAt(int64_t
position, int64_t nbytes, int64_t* bytes_read,</div><div class="line"><a
name="l00190"></a><span class="lineno"> 190</span>  <span
class="keywordtype">void</span>* buffer) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00191"></a><span class="lineno"> 191</span> </div><div
class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> ReadAt(int64_t
position, int64_t nbytes, std::shared_ptr<Buffer>* out) <span
class="keyword">override</span>;</div><div class="line"><a
name="l00193"></a><span class="lineno"> 193</span> </
div><div class="line"><a name="l00194"></a><span class="lineno">
194</span>  <span class="keywordtype">bool</span> supports_zero_copy()
<span class="keyword">const override</span>;</div><div class="line"><a
name="l00195"></a><span class="lineno"> 195</span> </div><div
class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Seek(int64_t
position) <span class="keyword">override</span>;</div><div class="line"><a
name="l00197"></a><span class="lineno"> 197</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Tell(int64_t* position) <span
class="keyword">const override</span>;</div><div class="line"><a
name="l00198"></a><span class="lineno"> 198</span> </div><div
class="line"><a name="l00199"></a><span class="lineno"> 199</span> 
<span class="keywordtype">void</span> set_memory_pool(<a class="code"
href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool);</
div><div class="line"><a name="l00200"></a><span class="lineno">
200</span> </div><div class="line"><a name="l00201"></a><span
class="lineno"> 201</span>  <span
class="keyword">private</span>:</div><div class="line"><a
name="l00202"></a><span class="lineno"> 202</span>  <span
class="keyword">explicit</span> <a class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a>(<a
class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool = <a
class="code"
href="macros_8h.html#a3ef7eab8cd0e570b6586628cc9d5ccab">NULLPTR</a>);</div><div
class="line"><a name="l00203"></a><span class="lineno">
203</span> </div><div class="line"><a name="l00204"></a><span
class="lineno"> 204</span>  <span class="keyword">class </span><a
class="code"
href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a>
HdfsReadableFileImpl;</div><div class="line"><a name="l00205"></a><span
class="lineno"> 205</span>  std::uniq
ue_ptr<HdfsReadableFileImpl> impl_;</div><div class="line"><a
name="l00206"></a><span class="lineno"> 206</span> </div><div
class="line"><a name="l00207"></a><span class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hdfs_readable_file.html#a2c0e64271cef9799af36654b4b0e4604">
207</a></span>  <span class="keyword">friend</span> <span
class="keyword">class </span>HadoopFileSystem::HadoopFileSystemImpl;</div><div
class="line"><a name="l00208"></a><span class="lineno">
208</span> </div><div class="line"><a name="l00209"></a><span
class="lineno"> 209</span>  <a class="code"
href="macros_8h.html#a40d72e185b1488b5659b761f0b6115bb">ARROW_DISALLOW_COPY_AND_ASSIGN</a>(<a
class="code"
href="classarrow_1_1io_1_1_hdfs_readable_file.html">HdfsReadableFile</a>);</div><div
class="line"><a name="l00210"></a><span class="lineno">
210</span> };</div><div class="line"><a name="l00211"></a><span
class="lineno"> 211</span> </div><div class="line"><a name="
l00212"></a><span class="lineno"> 212</span> <span class="comment">//
Naming this file OutputStream because it does not support seeking (like
the</span></div><div class="line"><a name="l00213"></a><span class="lineno">
213</span> <span class="comment">// WriteableFile
interface)</span></div><div class="line"><a name="l00214"></a><span
class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hdfs_output_stream.html"> 214</a></span> <span
class="keyword">class </span>ARROW_EXPORT <a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a> :
<span class="keyword">public</span> <a class="code"
href="classarrow_1_1io_1_1_output_stream.html">OutputStream</a> {</div><div
class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span
class="keyword">public</span>:</div><div class="line"><a
name="l00216"></a><span class="lineno"> 216</span>  ~<a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputS
tream</a>() <span class="keyword">override</span>;</div><div class="line"><a
name="l00217"></a><span class="lineno"> 217</span> </div><div
class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Close() <span
class="keyword">override</span>;</div><div class="line"><a
name="l00219"></a><span class="lineno"> 219</span> </div><div
class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <a
class="code" href="classarrow_1_1_status.html">Status</a> Write(<span
class="keyword">const</span> <span class="keywordtype">void</span>* buffer,
int64_t nbytes) <span class="keyword">override</span>;</div><div
class="line"><a name="l00221"></a><span class="lineno">
221</span> </div><div class="line"><a name="l00222"></a><span
class="lineno"> 222</span>  <a class="code"
href="classarrow_1_1_status.html">Status</a> Write(<span
class="keyword">const</span> <span class="keywordtype"
>void</span>* buffer, int64_t nbytes, int64_t* bytes_written);</div><div
>class="line"><a name="l00223"></a><span class="lineno">
>223</span> </div><div class="line"><a name="l00224"></a><span
>class="lineno"> 224</span>  <a class="code"
>href="classarrow_1_1_status.html">Status</a> Flush() <span
>class="keyword">override</span>;</div><div class="line"><a
>name="l00225"></a><span class="lineno"> 225</span> </div><div
>class="line"><a name="l00226"></a><span class="lineno"> 226</span>  <a
>class="code" href="classarrow_1_1_status.html">Status</a> Tell(int64_t*
>position) <span class="keyword">const override</span>;</div><div
>class="line"><a name="l00227"></a><span class="lineno">
>227</span> </div><div class="line"><a name="l00228"></a><span
>class="lineno"> 228</span>  <span
>class="keyword">private</span>:</div><div class="line"><a
>name="l00229"></a><span class="lineno"> 229</span>  <span
>class="keyword">class </span><a class="code" href="visibility
_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a>
HdfsOutputStreamImpl;</div><div class="line"><a name="l00230"></a><span
class="lineno"> 230</span>  std::unique_ptr<HdfsOutputStreamImpl>
impl_;</div><div class="line"><a name="l00231"></a><span class="lineno">
231</span> </div><div class="line"><a name="l00232"></a><span
class="lineno"><a class="line"
href="classarrow_1_1io_1_1_hdfs_output_stream.html#a2c0e64271cef9799af36654b4b0e4604">
232</a></span>  <span class="keyword">friend</span> <span
class="keyword">class </span>HadoopFileSystem::HadoopFileSystemImpl;</div><div
class="line"><a name="l00233"></a><span class="lineno">
233</span> </div><div class="line"><a name="l00234"></a><span
class="lineno"> 234</span>  <a class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a>();</div><div
class="line"><a name="l00235"></a><span class="lineno">
235</span> </div><div class="line"><a name="l00236"></a>
<span class="lineno"> 236</span>  <a class="code"
href="macros_8h.html#a40d72e185b1488b5659b761f0b6115bb">ARROW_DISALLOW_COPY_AND_ASSIGN</a>(<a
class="code"
href="classarrow_1_1io_1_1_hdfs_output_stream.html">HdfsOutputStream</a>);</div><div
class="line"><a name="l00237"></a><span class="lineno">
237</span> };</div><div class="line"><a name="l00238"></a><span
class="lineno"> 238</span> </div><div class="line"><a
name="l00239"></a><span class="lineno"> 239</span> <a class="code"
href="classarrow_1_1_status.html">Status</a> ARROW_EXPORT <a class="code"
href="namespacearrow_1_1io.html#a559bc6c902e7879baa1713f4de2b4639">HaveLibHdfs</a>();</div><div
class="line"><a name="l00240"></a><span class="lineno"> 240</span> <a
class="code" href="classarrow_1_1_status.html">Status</a> ARROW_EXPORT <a
class="code"
href="namespacearrow_1_1io.html#a9d672a377318a5a33081c2f52c4571f6">HaveLibHdfs3</a>();</div><div
class="line"><a name="l00241"></a><span class="lineno"> 24
1</span> </div><div class="line"><a name="l00242"></a><span
class="lineno"> 242</span> } <span class="comment">// namespace
io</span></div><div class="line"><a name="l00243"></a><span class="lineno">
243</span> } <span class="comment">// namespace arrow</span></div><div
class="line"><a name="l00244"></a><span class="lineno">
244</span> </div><div class="line"><a name="l00245"></a><span
class="lineno"> 245</span> <span class="preprocessor">#endif //
ARROW_IO_HDFS</span></div><div class="ttc"
id="structarrow_1_1io_1_1_hdfs_path_info_html_a209165368b934ff9775dc40a96319152"><div
class="ttname"><a
href="structarrow_1_1io_1_1_hdfs_path_info.html#a209165368b934ff9775dc40a96319152">arrow::io::HdfsPathInfo::last_modified_time</a></div><div
class="ttdeci">int32_t last_modified_time</div><div
class="ttdef"><b>Definition:</b> hdfs.h:52</div></div>
<div class="ttc" id="classarrow_1_1io_1_1_hadoop_file_system_html"><div
class="ttname"><a
href="classarrow_1_1io_1_1_hadoop_file_system.html">arrow::io::HadoopFileSystem</a></div><div
class="ttdef"><b>Definition:</b> hdfs.h:69</div></div>
<div class="ttc"
id="structarrow_1_1io_1_1_hdfs_path_info_html_a614821e49ed4cfb27669cbbdf19219ab"><div
class="ttname"><a
href="structarrow_1_1io_1_1_hdfs_path_info.html#a614821e49ed4cfb27669cbbdf19219ab">arrow::io::HdfsPathInfo::last_access_time</a></div><div
class="ttdeci">int32_t last_access_time</div><div
class="ttdef"><b>Definition:</b> hdfs.h:53</div></div>
<div class="ttc" id="classarrow_1_1io_1_1_output_stream_html"><div
class="ttname"><a
href="classarrow_1_1io_1_1_output_stream.html">arrow::io::OutputStream</a></div><div
class="ttdef"><b>Definition:</b> interfaces.h:111</div></div>
