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Nikhil Raj1dc83fe2024-05-16 09:47:51 +0100[diff] [blame]39 &#160;<span id="projectnumber">24.05</span>
Nikhil Raj03c7ff32023-08-22 12:00:04 +0100[diff] [blame]40 </div>
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96<div class="title">DynamicBackendUtils.hpp</div> </div>
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98<div class="contents">
99<a href="_dynamic_backend_utils_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">//</span></div>
100<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment">// Copyright © 2017 Arm Ltd and Contributors. All rights reserved.</span></div>
101<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment">// SPDX-License-Identifier: MIT</span></div>
102<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment">//</span></div>
103<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160; </div>
104<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="preprocessor">#pragma once</span></div>
105<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160; </div>
106<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="_dynamic_backend_8hpp.html">armnn/backends/DynamicBackend.hpp</a>&gt;</span></div>
107<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="_i_backend_internal_8hpp.html">armnn/backends/IBackendInternal.hpp</a>&gt;</span></div>
108<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160; </div>
109<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="preprocessor">#include &lt;<a class="code" href="_exceptions_8hpp.html">armnn/Exceptions.hpp</a>&gt;</span></div>
110<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160; </div>
111<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="preprocessor">#include &lt;fmt/format.h&gt;</span></div>
112<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160; </div>
113<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div>
114<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="preprocessor">#include &lt;vector&gt;</span></div>
115<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;<span class="preprocessor">#if defined(__unix__) || defined(__APPLE__)</span></div>
116<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="preprocessor">#include &lt;dlfcn.h&gt;</span></div>
117<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="preprocessor">#endif</span></div>
118<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160; </div>
119<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="preprocessor">#if !defined(DYNAMIC_BACKEND_PATHS)</span></div>
120<div class="line"><a name="l00022"></a><span class="lineno"><a class="line" href="_dynamic_backend_utils_8hpp.html#a6100170f71dc5f7f2558234843db82b3"> 22</a></span>&#160;<span class="preprocessor">#define DYNAMIC_BACKEND_PATHS &quot;&quot;</span></div>
121<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="preprocessor">#endif</span></div>
122<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160; </div>
123<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearmnn.html">armnn</a></div>
124<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;{</div>
125<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160; </div>
126<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="classarmnn_1_1_dynamic_backend_utils.html"> 28</a></span>&#160;<span class="keyword">class </span><a class="code" href="classarmnn_1_1_dynamic_backend_utils.html">DynamicBackendUtils</a></div>
127<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;{</div>
128<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="keyword">public</span>:</div>
129<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span>* <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#aed6d54e3299851dea74d4175d28ddb87">OpenHandle</a>(<span class="keyword">const</span> std::string&amp; sharedObjectPath);</div>
130<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#aebd30d283660a07b4123fdb0245e8426">CloseHandle</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* sharedObjectHandle);</div>
131<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160; </div>
132<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>&#160; <span class="keyword">template</span>&lt;<span class="keyword">typename</span> EntryPo<span class="keywordtype">int</span>Type&gt;</div>
133<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; <span class="keyword">static</span> EntryPointType <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a3964c90252556ffae5242cc6a69d8b3c">GetEntryPoint</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* sharedObjectHandle, <span class="keyword">const</span> <span class="keywordtype">char</span>* symbolName);</div>
134<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; </div>
135<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160; <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a6789076aa25c6a10faeff1043359bda8">IsBackendCompatible</a>(<span class="keyword">const</span> <a class="code" href="structarmnn_1_1_backend_version.html">BackendVersion</a>&amp; backendVersion);</div>
136<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>&#160; </div>
137<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>&#160; <span class="keyword">static</span> std::vector&lt;std::string&gt; <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a6d47980f97dd4d3aab24d818f8474dce">GetBackendPaths</a>(<span class="keyword">const</span> std::string&amp; overrideBackendPath = <span class="stringliteral">&quot;&quot;</span>);</div>
138<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>&#160; <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a30619dd4b86da204cb47530f40e175db">IsPathValid</a>(<span class="keyword">const</span> std::string&amp; path);</div>
139<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>&#160; <span class="keyword">static</span> std::vector&lt;std::string&gt; <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a48e1fb944c3ef4086365aedcadb4c311">GetSharedObjects</a>(<span class="keyword">const</span> std::vector&lt;std::string&gt;&amp; backendPaths);</div>
140<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>&#160; </div>
141<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>&#160; <span class="keyword">static</span> std::vector&lt;DynamicBackendPtr&gt; <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a42e250dfa19b9df3abdb273e1d35fa5b">CreateDynamicBackends</a>(<span class="keyword">const</span> std::vector&lt;std::string&gt;&amp; sharedObjects);</div>
142<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; <span class="keyword">static</span> <a class="code" href="namespacearmnn.html#a1854d9cda81304325664363c1fd0fb27">BackendIdSet</a> <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a55415a62bbb0a72c1a2f333501989401">RegisterDynamicBackends</a>(<span class="keyword">const</span> std::vector&lt;DynamicBackendPtr&gt;&amp; dynamicBackends);</div>
143<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a7e786263f454b19c40b78c4092a4af5b">DeregisterDynamicBackends</a>(<span class="keyword">const</span> <a class="code" href="namespacearmnn.html#a1854d9cda81304325664363c1fd0fb27">BackendIdSet</a>&amp; dynamicBackends);</div>
144<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; </div>
145<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160;<span class="keyword">protected</span>:<span class="comment"></span></div>
146<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160;<span class="comment"> /// Protected methods for testing purposes</span></div>
147<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160;<span class="comment"></span> <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#aafeb709b667b8554e43d2212b7d46e48">IsBackendCompatibleImpl</a>(<span class="keyword">const</span> <a class="code" href="structarmnn_1_1_backend_version.html">BackendVersion</a>&amp; backendApiVersion, <span class="keyword">const</span> <a class="code" href="structarmnn_1_1_backend_version.html">BackendVersion</a>&amp; backendVersion);</div>
148<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keyword">static</span> std::vector&lt;std::string&gt; <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a5d8cade961d9ea50a19a382c974d1ce5">GetBackendPathsImpl</a>(<span class="keyword">const</span> std::string&amp; backendPaths);</div>
149<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; <span class="keyword">static</span> <a class="code" href="namespacearmnn.html#a1854d9cda81304325664363c1fd0fb27">BackendIdSet</a> <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#adb6f50f10cdce40bd5493d42930b58cb">RegisterDynamicBackendsImpl</a>(<a class="code" href="classarmnn_1_1_backend_registry.html">BackendRegistry</a>&amp; backendRegistry,</div>
150<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160; <span class="keyword">const</span> std::vector&lt;DynamicBackendPtr&gt;&amp; dynamicBackends);</div>
151<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>&#160; </div>
152<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160;<span class="keyword">private</span>:</div>
153<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; <span class="keyword">static</span> std::string GetDlError();</div>
154<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160;<span class="comment"></span> </div>
155<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;<span class="comment"> /// This class is to hold utility functions only</span></div>
156<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>&#160;<span class="comment"></span> <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html">DynamicBackendUtils</a>() = <span class="keyword">delete</span>;</div>
157<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>&#160;};</div>
158<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>&#160; </div>
159<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>&#160;<span class="keyword">template</span>&lt;<span class="keyword">typename</span> EntryPo<span class="keywordtype">int</span>Type&gt;</div>
160<div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classarmnn_1_1_dynamic_backend_utils.html#a3964c90252556ffae5242cc6a69d8b3c"> 62</a></span>&#160;EntryPointType <a class="code" href="classarmnn_1_1_dynamic_backend_utils.html#a3964c90252556ffae5242cc6a69d8b3c">DynamicBackendUtils::GetEntryPoint</a>(<span class="keyword">const</span> <span class="keywordtype">void</span>* sharedObjectHandle, <span class="keyword">const</span> <span class="keywordtype">char</span>* symbolName)</div>
161<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160;{</div>
162<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160;<span class="preprocessor">#if defined(__unix__) || defined(__APPLE__)</span></div>
163<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; <span class="keywordflow">if</span> (sharedObjectHandle == <span class="keyword">nullptr</span>)</div>
164<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160; {</div>
165<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.html">RuntimeException</a>(<span class="stringliteral">&quot;GetEntryPoint error: invalid handle&quot;</span>);</div>
166<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; }</div>
167<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; </div>
168<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; <span class="keywordflow">if</span> (symbolName == <span class="keyword">nullptr</span>)</div>
169<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160; {</div>
170<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.html">RuntimeException</a>(<span class="stringliteral">&quot;GetEntryPoint error: invalid symbol&quot;</span>);</div>
171<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; }</div>
172<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; </div>
173<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; <span class="keyword">auto</span> entryPoint = <span class="keyword">reinterpret_cast&lt;</span>EntryPointType<span class="keyword">&gt;</span>(dlsym(<span class="keyword">const_cast&lt;</span><span class="keywordtype">void</span>*<span class="keyword">&gt;</span>(sharedObjectHandle), symbolName));</div>
174<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160; <span class="keywordflow">if</span> (!entryPoint)</div>
175<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; {</div>
176<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.html">RuntimeException</a>(fmt::format(<span class="stringliteral">&quot;GetEntryPoint error: {}&quot;</span>, GetDlError()));</div>
177<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; }</div>
178<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; </div>
179<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160; <span class="keywordflow">return</span> entryPoint;</div>
180<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>&#160;<span class="preprocessor">#else</span></div>
181<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>&#160; <a class="code" href="namespacearmnn.html#a44affeeb090c3c6a3062830562672e84">armnn::IgnoreUnused</a>(sharedObjectHandle);</div>
182<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>&#160; <a class="code" href="namespacearmnn.html#a44affeeb090c3c6a3062830562672e84">armnn::IgnoreUnused</a>(symbolName);</div>
183<div class="line"><a name="l00085"></a><span class="lineno"> 85</span>&#160; <span class="keywordflow">throw</span> <a class="code" href="classarmnn_1_1_runtime_exception.html">RuntimeException</a>(<span class="stringliteral">&quot;Dynamic backends not supported on this platform&quot;</span>);</div>
184<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>&#160;<span class="preprocessor">#endif</span></div>
185<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>&#160;}</div>
186<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>&#160; </div>
187<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160;} <span class="comment">// namespace armnn</span></div>
188</div><!-- fragment --></div><!-- contents -->
189</div><!-- doc-content -->
190<div class="ttc" id="aclassarmnn_1_1_dynamic_backend_utils_html_a42e250dfa19b9df3abdb273e1d35fa5b"><div class="ttname"><a href="classarmnn_1_1_dynamic_backend_utils.html#a42e250dfa19b9df3abdb273e1d35fa5b">armnn::DynamicBackendUtils::CreateDynamicBackends</a></div><div class="ttdeci">static std::vector&lt; DynamicBackendPtr &gt; CreateDynamicBackends(const std::vector&lt; std::string &gt; &amp;sharedObjects)</div><div class="ttdef"><b>Definition:</b> <a href="_dynamic_backend_utils_8cpp_source.html#l00269">DynamicBackendUtils.cpp:269</a></div></div>
191<div class="ttc" id="anamespacearmnn_html_a1854d9cda81304325664363c1fd0fb27"><div class="ttname"><a href="namespacearmnn.html#a1854d9cda81304325664363c1fd0fb27">armnn::BackendIdSet</a></div><div class="ttdeci">std::unordered_set&lt; BackendId &gt; BackendIdSet</div><div class="ttdef"><b>Definition:</b> <a href="_backend_id_8hpp_source.html#l00193">BackendId.hpp:193</a></div></div>
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