http://git-wip-us.apache.org/repos/asf/arrow-site/blob/8673db8b/docs/cpp/reader_8h_source.html ---------------------------------------------------------------------- diff --git a/docs/cpp/reader_8h_source.html b/docs/cpp/reader_8h_source.html index 186e044..eefc49f 100644 --- a/docs/cpp/reader_8h_source.html +++ b/docs/cpp/reader_8h_source.html @@ -5,7 +5,7 @@ <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> -<title>Apache Arrow (C++): /home/wesm/code/arrow/cpp/src/arrow/ipc/reader.h Source File</title> +<title>Apache Arrow (C++): /apache-arrow/arrow/cpp/src/arrow/ipc/reader.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> @@ -67,13 +67,13 @@ $(function() { <div class="title">reader.h</div> </div> </div><!--header--> <div class="contents"> -<a href="reader_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= "lineno"> 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 un der 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="comment">// Read Arrow files and streams</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="preprocessor">#ifndef ARROW_IPC_READER_H</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define ARROW_IPC_READER_H</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <cstdint></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <memory></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="message_8h.html">arrow/ipc/message.h</a>"</span></div><div class="line"><a name="l00027"> </a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="table_8h.html">arrow/table.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>RecordBatch;</div><div class="line"><a name="l0 0034"></a><span class="lineno"> 34</span> <span class="keyword">class </span>Schema;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">class </span>Status;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">class </span>Tensor;</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">namespace </span>io {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">class </span>InputStream;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">class </span>RandomAccessFile;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><d iv class="line"><a name="l00043"></a><span class="lineno"> 43</span> } <span class="comment">// namespace io</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>ipc {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="namespacearrow_1_1ipc.html#a6eae3918b2e6c0c4e1f56e083187a339"> 47</a></span> <span class="keyword">using</span> <a class="code" href="classarrow_1_1_record_batch_reader.html">RecordBatchReader</a> = <a class="code" href="namespacearrow_1_1ipc.html#a6eae3918b2e6c0c4e1f56e083187a339">::arrow::RecordBatchReader</a>;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" hre f="classarrow_1_1ipc_1_1_record_batch_stream_reader.html"> 51</a></span> <span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1ipc_1_1_record_batch_stream_reader.html">RecordBatchStreamReader</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_record_batch_reader.html">RecordBatchReader</a> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">virtual</span> ~<a class="code" href="classarrow_1_1ipc_1_1_record_batch_stream_reader.html">RecordBatchStreamReader</a>();</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(std::unique_ptr& lt;MessageReader> message_reader,</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  std::shared_ptr<RecordBatchReader>* out);</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">#ifndef ARROW_NO_DEPRECATED_API</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(std::unique_ptr<MessageReader> message_reader,</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  std::shared_ptr<RecordBatchStreamReader>* out);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span cl ass="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<span class="keyword">const</span> std::shared_ptr<io::InputStream>& stream,</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  std::shared_ptr<RecordBatchStreamReader>* out);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<a class="code" href="classarrow_1_1io_1_1_input_stream.html">io::InputStream</a>* stream, std::shared_ptr<RecordBatchReader>* out);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00082"> </a><span class="lineno"> 82</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<span class="keyword">const</span> std::shared_ptr<io::InputStream>& stream,</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  std::shared_ptr<RecordBatchReader>* out);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  std::shared_ptr<Schema> <a class="code" href="namespacearrow.html#ae1692c648f5447a7f95ddbe2c4e9a5fc">schema</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="classarrow_1_1_status.html">Status</a> ReadNext(std::shared_ptr<RecordBatch>* batch) <span class="keyword">override</span>;</div><div class="line"><a name="l00087"> </a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="classarrow_1_1ipc_1_1_record_batch_stream_reader.html">RecordBatchStreamReader</a>();</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>  <span class="keyword">class </span><a class="code" href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a> RecordBatchStreamReaderImpl;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  std::unique_ptr<RecordBatchStreamReaderImpl> impl_;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> };</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> 60;</div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classarrow_1_1ipc_1_1_record_batch_file_reader.html"> 96</a></span> <span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1ipc_1_1_record_batch_file_reader.html">RecordBatchFileReader</a> {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  ~<a class="code" href="classarrow_1_1ipc_1_1_record_batch_file_reader.html">RecordBatchFileReader</a>();</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// Open a file-like object that is assumed to be self-contained; i.e., the</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class ="comment">// end of the file interface is the end of the Arrow file. Note that there</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// can be any amount of data preceding the Arrow-formatted data, because we</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// need only locate the end of the Arrow file stream to discover the metadata</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// and then proceed to read the data into memory.</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file,</div><div class="line"><a name="l00107"></a><span class="lineno"> 107< /span>  std::shared_ptr<RecordBatchFileReader>* reader);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file, int64_t footer_offset,</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  std::shared_ptr<RecordBatchFileReader>* reader);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<span class="keyword">const</span> std::shared_ptr<io::RandomAccessFile>& f ile,</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  std::shared_ptr<RecordBatchFileReader>* reader);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<span class="keyword">const</span> std::shared_ptr<io::RandomAccessFile>& file,</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  int64_t footer_offset,</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  std::shared_ptr<RecordBatchFileReader>* reader);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  std::shared_ptr&l t;Schema> <a class="code" href="namespacearrow.html#ae1692c648f5447a7f95ddbe2c4e9a5fc">schema</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">int</span> num_record_batches() <span class="keyword">const</span>;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="namespacearrow_1_1ipc.html#aa5d7ec68a8c707271bab98af9bc0ac77">MetadataVersion</a> version() <span class="keyword">const</span>;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.ht ml#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keywordtype">int</span> i, std::shared_ptr<RecordBatch>* batch);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a class="code" href="classarrow_1_1ipc_1_1_record_batch_file_reader.html">RecordBatchFileReader</a>();</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">class </span><a class="code" href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a> RecordBatchFileReaderImpl;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  std::unique_ptr<RecordBatchFileReaderImpl> impl_;</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> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// Generic read functions; does not copy data if the input supports zero copy reads</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> ARROW_EXPORT</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#afb612803f2eb24e01d7c3f843941e2f2">ReadSchema</a>(<a class="code" href="classarrow_1_1io_1_1_input_stream.html">io::InputStream</a>* stream, std::shared_ptr<Schema>* out);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</ span> </div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> ARROW_EXPORT</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> std::shared_ptr<Schema>& <a class="code" href="namespacearrow.html#ae1692c648f5447a7f95ddbe2c4e9a5fc">schema</a>, <a class="code" href="classarrow_1_1io_1_1_input_stream.html">io::InputStream</a>* stream,</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  std::shared_ptr<RecordBatch>* out);</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span> </div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> ARROW_EXPORT</div><div class="line"><a name="l00183"></a><span class="lineno "> 183</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>& metadata, <span class="keyword">const</span> std::shared_ptr<Schema>& schema,</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file, std::shared_ptr<RecordBatch>* out);</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span> </div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> ARROW_EXPORT</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac 64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> <a class="code" href="classarrow_1_1ipc_1_1_message.html">Message</a>& message, <span class="keyword">const</span> std::shared_ptr<Schema>& schema,</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  std::shared_ptr<RecordBatch>* out);</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> </div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> ARROW_EXPORT</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>& metadata, <span class="keyword">const</span> std::shared_ptr<Schema >& schema,</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keywordtype">int</span> max_recursion_depth, <a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file,</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  std::shared_ptr<RecordBatch>* out);</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span> </div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> ARROW_EXPORT</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#a20b096f3dbfbbd4d78a1383b2a1ff84a">ReadTensor</a>(int64_t offset, <a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file,</div><div class="line"><a na me="l00215"></a><span class="lineno"> 215</span>  std::shared_ptr<Tensor>* out);</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> <span class="preprocessor">#ifndef ARROW_NO_DEPRECATED_API</span></div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> ARROW_EXPORT</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> std::shared_ptr<Schema>& schema, int64_t offset,</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  <a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* stream, std::sha red_ptr<RecordBatch>* out);</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> <span class="preprocessor">#endif</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> } <span class="comment">// namespace ipc</span></div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> } <span class="comment">// namespace arrow</span></div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="preprocessor">#endif // ARROW_IPC_READER_H</span></div><div class="ttc" id="namespacearrow_1_1ipc_html_a20b096f3dbfbbd4d78a1383b2a1ff84a"><div class="ttname"><a href="namespacearrow_1_1ipc.html#a20b096f3dbfbbd4d78a1383b2a1ff84a">arrow::ipc::ReadTensor</a></div><div class="ttdeci">Status ReadTensor(int64_t o ffset, io::RandomAccessFile *file, std::shared_ptr< Tensor > *out)</div><div class="ttdoc">EXPERIMENTAL: Read arrow::Tensor as encapsulated IPC message in file. </div></div> +<a href="reader_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= "lineno"> 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 un der 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="comment">// Read Arrow files and streams</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="preprocessor">#ifndef ARROW_IPC_READER_H</span></div><div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#define ARROW_IPC_READER_H</span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <cstdint></span></div><div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <memory></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="message_8h.html">arrow/ipc/message.h</a>"</span></div><div class="line"><a name="l00027"> </a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="table_8h.html">arrow/table.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>RecordBatch;</div><div class="line"><a name="l0 0034"></a><span class="lineno"> 34</span> <span class="keyword">class </span>Schema;</div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="keyword">class </span>Status;</div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">class </span>Tensor;</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">namespace </span>io {</div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">class </span>InputStream;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">class </span>RandomAccessFile;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> </div><d iv class="line"><a name="l00043"></a><span class="lineno"> 43</span> } <span class="comment">// namespace io</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>ipc {</div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="namespacearrow_1_1ipc.html#a6eae3918b2e6c0c4e1f56e083187a339"> 47</a></span> <span class="keyword">using</span> <a class="code" href="classarrow_1_1_record_batch_reader.html">RecordBatchReader</a> = <a class="code" href="namespacearrow_1_1ipc.html#a6eae3918b2e6c0c4e1f56e083187a339">::arrow::RecordBatchReader</a>;</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> </div><div class="line"><a name="l00051"></a><span class="lineno"><a class="line" hre f="classarrow_1_1ipc_1_1_record_batch_stream_reader.html"> 51</a></span> <span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1ipc_1_1_record_batch_stream_reader.html">RecordBatchStreamReader</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_record_batch_reader.html">RecordBatchReader</a> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keyword">virtual</span> ~<a class="code" href="classarrow_1_1ipc_1_1_record_batch_stream_reader.html">RecordBatchStreamReader</a>();</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(std::unique_ptr& lt;MessageReader> message_reader,</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  std::shared_ptr<RecordBatchReader>* out);</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">#ifndef ARROW_NO_DEPRECATED_API</span></div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(std::unique_ptr<MessageReader> message_reader,</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  std::shared_ptr<RecordBatchStreamReader>* out);</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span cl ass="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<span class="keyword">const</span> std::shared_ptr<io::InputStream>& stream,</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  std::shared_ptr<RecordBatchStreamReader>* out);</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<a class="code" href="classarrow_1_1io_1_1_input_stream.html">io::InputStream</a>* stream, std::shared_ptr<RecordBatchReader>* out);</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div><div class="line"><a name="l00082"> </a><span class="lineno"> 82</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<span class="keyword">const</span> std::shared_ptr<io::InputStream>& stream,</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  std::shared_ptr<RecordBatchReader>* out);</div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  std::shared_ptr<Schema> <a class="code" href="namespacearrow.html#ae1692c648f5447a7f95ddbe2c4e9a5fc">schema</a>() <span class="keyword">const override</span>;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="classarrow_1_1_status.html">Status</a> ReadNext(std::shared_ptr<RecordBatch>* batch) <span class="keyword">override</span>;</div><div class="line"><a name="l00087"> </a><span class="lineno"> 87</span> </div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <a class="code" href="classarrow_1_1ipc_1_1_record_batch_stream_reader.html">RecordBatchStreamReader</a>();</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>  <span class="keyword">class </span><a class="code" href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a> RecordBatchStreamReaderImpl;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  std::unique_ptr<RecordBatchStreamReaderImpl> impl_;</div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> };</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> 60;</div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="classarrow_1_1ipc_1_1_record_batch_file_reader.html"> 96</a></span> <span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1ipc_1_1_record_batch_file_reader.html">RecordBatchFileReader</a> {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">public</span>:</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  ~<a class="code" href="classarrow_1_1ipc_1_1_record_batch_file_reader.html">RecordBatchFileReader</a>();</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="comment">// Open a file-like object that is assumed to be self-contained; i.e., the</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class ="comment">// end of the file interface is the end of the Arrow file. Note that there</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// can be any amount of data preceding the Arrow-formatted data, because we</span></div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="comment">// need only locate the end of the Arrow file stream to discover the metadata</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <span class="comment">// and then proceed to read the data into memory.</span></div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file,</div><div class="line"><a name="l00107"></a><span class="lineno"> 107< /span>  std::shared_ptr<RecordBatchFileReader>* reader);</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file, int64_t footer_offset,</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  std::shared_ptr<RecordBatchFileReader>* reader);</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<span class="keyword">const</span> std::shared_ptr<io::RandomAccessFile>& f ile,</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  std::shared_ptr<RecordBatchFileReader>* reader);</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> </div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keyword">static</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Open(<span class="keyword">const</span> std::shared_ptr<io::RandomAccessFile>& file,</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  int64_t footer_offset,</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  std::shared_ptr<RecordBatchFileReader>* reader);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  std::shared_ptr&l t;Schema> <a class="code" href="namespacearrow.html#ae1692c648f5447a7f95ddbe2c4e9a5fc">schema</a>() <span class="keyword">const</span>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> </div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordtype">int</span> num_record_batches() <span class="keyword">const</span>;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <a class="code" href="namespacearrow_1_1ipc.html#aa5d7ec68a8c707271bab98af9bc0ac77">MetadataVersion</a> version() <span class="keyword">const</span>;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> </div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.ht ml#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keywordtype">int</span> i, std::shared_ptr<RecordBatch>* batch);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keyword">private</span>:</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <a class="code" href="classarrow_1_1ipc_1_1_record_batch_file_reader.html">RecordBatchFileReader</a>();</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> </div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keyword">class </span><a class="code" href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a> RecordBatchFileReaderImpl;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  std::unique_ptr<RecordBatchFileReaderImpl> impl_;</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> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> <span class="comment">// Generic read functions; does not copy data if the input supports zero copy reads</span></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> ARROW_EXPORT</div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#afb612803f2eb24e01d7c3f843941e2f2">ReadSchema</a>(<a class="code" href="classarrow_1_1io_1_1_input_stream.html">io::InputStream</a>* stream, std::shared_ptr<Schema>* out);</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</ span> </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span> ARROW_EXPORT</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> std::shared_ptr<Schema>& <a class="code" href="namespacearrow.html#ae1692c648f5447a7f95ddbe2c4e9a5fc">schema</a>, <a class="code" href="classarrow_1_1io_1_1_input_stream.html">io::InputStream</a>* stream,</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  std::shared_ptr<RecordBatch>* out);</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span> ARROW_EXPORT</div><div class="line"><a name="l00182"></a><span class="lineno "> 182</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>& metadata, <span class="keyword">const</span> std::shared_ptr<Schema>& schema,</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file, std::shared_ptr<RecordBatch>* out);</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span> </div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> ARROW_EXPORT</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac 64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> <a class="code" href="classarrow_1_1ipc_1_1_message.html">Message</a>& message, <span class="keyword">const</span> std::shared_ptr<Schema>& schema,</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  std::shared_ptr<RecordBatch>* out);</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span> </div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> ARROW_EXPORT</div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>& metadata, <span class="keyword">const</span> std::shared_ptr<Schema >& schema,</div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keywordtype">int</span> max_recursion_depth, <a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file,</div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  std::shared_ptr<RecordBatch>* out);</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span> </div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span> ARROW_EXPORT</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#a20b096f3dbfbbd4d78a1383b2a1ff84a">ReadTensor</a>(int64_t offset, <a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* file,</div><div class="line"><a na me="l00214"></a><span class="lineno"> 214</span>  std::shared_ptr<Tensor>* out);</div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span> </div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span> <span class="preprocessor">#ifndef ARROW_NO_DEPRECATED_API</span></div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span> ARROW_EXPORT</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="namespacearrow_1_1ipc.html#ac64f49d3981c1f5c199387050aff8bc6">ReadRecordBatch</a>(<span class="keyword">const</span> std::shared_ptr<Schema>& schema, int64_t offset,</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <a class="code" href="classarrow_1_1io_1_1_random_access_file.html">io::RandomAccessFile</a>* stream, std::sha red_ptr<RecordBatch>* out);</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <span class="preprocessor">#endif</span></div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span> </div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span> } <span class="comment">// namespace ipc</span></div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span> } <span class="comment">// namespace arrow</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="preprocessor">#endif // ARROW_IPC_READER_H</span></div><div class="ttc" id="namespacearrow_1_1ipc_html_a20b096f3dbfbbd4d78a1383b2a1ff84a"><div class="ttname"><a href="namespacearrow_1_1ipc.html#a20b096f3dbfbbd4d78a1383b2a1ff84a">arrow::ipc::ReadTensor</a></div><div class="ttdeci">Status ReadTensor(int64_t o ffset, io::RandomAccessFile *file, std::shared_ptr< Tensor > *out)</div><div class="ttdoc">EXPERIMENTAL: Read arrow::Tensor as encapsulated IPC message in file. </div></div> <div class="ttc" id="classarrow_1_1ipc_1_1_message_html"><div class="ttname"><a href="classarrow_1_1ipc_1_1_message.html">arrow::ipc::Message</a></div><div class="ttdoc">An IPC message including metadata and body. </div><div class="ttdef"><b>Definition:</b> message.h:57</div></div> <div class="ttc" id="namespacearrow_html_ae1692c648f5447a7f95ddbe2c4e9a5fc"><div class="ttname"><a href="namespacearrow.html#ae1692c648f5447a7f95ddbe2c4e9a5fc">arrow::schema</a></div><div class="ttdeci">std::shared_ptr< Schema > schema(const std::vector< std::shared_ptr< Field >> &fields, const std::shared_ptr< const KeyValueMetadata > &metadata=nullptr)</div><div class="ttdoc">Create a Schema instance. </div></div> <div class="ttc" id="classarrow_1_1_record_batch_reader_html"><div class="ttname"><a href="classarrow_1_1_record_batch_reader.html">arrow::RecordBatchReader</a></div><div class="ttdoc">Abstract interface for reading stream of record batches. </div><div class="ttdef"><b>Definition:</b> table.h:276</div></div> -<div class="ttc" id="classarrow_1_1io_1_1_input_stream_html"><div class="ttname"><a href="classarrow_1_1io_1_1_input_stream.html">arrow::io::InputStream</a></div><div class="ttdef"><b>Definition:</b> interfaces.h:115</div></div> +<div class="ttc" id="classarrow_1_1io_1_1_input_stream_html"><div class="ttname"><a href="classarrow_1_1io_1_1_input_stream.html">arrow::io::InputStream</a></div><div class="ttdef"><b>Definition:</b> interfaces.h:120</div></div> <div class="ttc" id="visibility_8h_html_a843cb8dccea68a22a2b9995605cb5a74"><div class="ttname"><a href="visibility_8h.html#a843cb8dccea68a22a2b9995605cb5a74">ARROW_NO_EXPORT</a></div><div class="ttdeci">#define ARROW_NO_EXPORT</div><div class="ttdef"><b>Definition:</b> visibility.h:40</div></div> -<div class="ttc" id="classarrow_1_1io_1_1_random_access_file_html"><div class="ttname"><a href="classarrow_1_1io_1_1_random_access_file.html">arrow::io::RandomAccessFile</a></div><div class="ttdef"><b>Definition:</b> interfaces.h:120</div></div> +<div class="ttc" id="classarrow_1_1io_1_1_random_access_file_html"><div class="ttname"><a href="classarrow_1_1io_1_1_random_access_file.html">arrow::io::RandomAccessFile</a></div><div class="ttdef"><b>Definition:</b> interfaces.h:125</div></div> <div class="ttc" id="message_8h_html"><div class="ttname"><a href="message_8h.html">message.h</a></div></div> <div class="ttc" id="classarrow_1_1_status_html"><div class="ttname"><a href="classarrow_1_1_status.html">arrow::Status</a></div><div class="ttdef"><b>Definition:</b> status.h:106</div></div> <div class="ttc" id="classarrow_1_1ipc_1_1_record_batch_stream_reader_html"><div class="ttname"><a href="classarrow_1_1ipc_1_1_record_batch_stream_reader.html">arrow::ipc::RecordBatchStreamReader</a></div><div class="ttdoc">Synchronous batch stream reader that reads from io::InputStream. </div><div class="ttdef"><b>Definition:</b> reader.h:51</div></div>
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