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<a class="el" href="a00428.html">tbb</a>::<b>interface6</b>::<a class="el" href="a00336.html">runtime_loader</a></div>
<h1>tbb::interface6::runtime_loader Class Reference</h1><!-- doxytag: class="tbb::interface6::runtime_loader" -->Load TBB at runtime.
<a href="#_details">More...</a>
<p>
<code>#include <runtime_loader.h></code>
<p>
<a href="a00121.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcbdb47fe5ffbd2eaf47e6de0af433ada38">em_status</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Save status of operation and continue. <a href="#bb0130fe0f596399707e61431231ebcbdb47fe5ffbd2eaf47e6de0af433ada38"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcbdeb59ca2912432b47fd3ec831574653b">em_throw</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Throw an exception of tbb::runtime_loader::error_code type. <a href="#bb0130fe0f596399707e61431231ebcbdeb59ca2912432b47fd3ec831574653b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcb630dd30c9ba61d5ab187e80313bbad94">em_abort</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Print message to <code>stderr</code> and call <code>abort()</code>. <a href="#bb0130fe0f596399707e61431231ebcb630dd30c9ba61d5ab187e80313bbad94"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde0187891e3a364f63f419e5ea2f1d1e52289b27">ec_ok</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">No errors. <a href="#6831be91cdc64e57e565ce0dde0187891e3a364f63f419e5ea2f1d1e52289b27"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde018789e6ce2b091083b80878cbb70cd00782a1">ec_bad_call</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Invalid function call (e. g. <a class="el" href="a00336.html#5f3f6f1683386705a6931acae45f0862">load()</a> called when TBB is already loaded). <a href="#6831be91cdc64e57e565ce0dde018789e6ce2b091083b80878cbb70cd00782a1"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde01878927e94a7b173bb8d0623bf48aad8fc703">ec_bad_arg</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Invalid argument passed. <a href="#6831be91cdc64e57e565ce0dde01878927e94a7b173bb8d0623bf48aad8fc703"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde01878903ee81d8c05966bc1125666713dee5f6">ec_bad_lib</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Invalid library found (e. g. <code>TBB_runtime_version</code> symbol not found). <a href="#6831be91cdc64e57e565ce0dde01878903ee81d8c05966bc1125666713dee5f6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde01878907790f32918e60d670a96c1f0349e8d6">ec_bad_ver</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">TBB found but version is not suitable. <a href="#6831be91cdc64e57e565ce0dde01878907790f32918e60d670a96c1f0349e8d6"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde01878902acc03ebfcdb16e3e26b24f64da2bdb">ec_no_lib</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">No suitable TBB library found. <a href="#6831be91cdc64e57e565ce0dde01878902acc03ebfcdb16e3e26b24f64da2bdb"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcb">error_mode</a> { <a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcbdb47fe5ffbd2eaf47e6de0af433ada38">em_status</a>,
<a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcbdeb59ca2912432b47fd3ec831574653b">em_throw</a>,
<a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcb630dd30c9ba61d5ab187e80313bbad94">em_abort</a>
}</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Error mode constants. <a href="a00336.html#bb0130fe0f596399707e61431231ebcb">More...</a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">enum </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde018789">error_code</a> { <br>
<a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde0187891e3a364f63f419e5ea2f1d1e52289b27">ec_ok</a>,
<a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde018789e6ce2b091083b80878cbb70cd00782a1">ec_bad_call</a>,
<a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde01878927e94a7b173bb8d0623bf48aad8fc703">ec_bad_arg</a>,
<a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde01878903ee81d8c05966bc1125666713dee5f6">ec_bad_lib</a>,
<br>
<a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde01878907790f32918e60d670a96c1f0349e8d6">ec_bad_ver</a>,
<a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde01878902acc03ebfcdb16e3e26b24f64da2bdb">ec_no_lib</a>
<br>
}</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Error codes. <a href="a00336.html#6831be91cdc64e57e565ce0dde018789">More...</a><br></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="7caa4ff6e44c2348e67f601cc5d97c34"></a><!-- doxytag: member="tbb::interface6::runtime_loader::runtime_loader" ref="7caa4ff6e44c2348e67f601cc5d97c34" args="(error_mode mode=em_abort)" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#7caa4ff6e44c2348e67f601cc5d97c34">runtime_loader</a> (<a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcb">error_mode</a> mode=em_abort)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize object but do not load TBB. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#7ae5330beb48fce0c702c32a5df0094a">runtime_loader</a> (char const *path[], int min_ver=TBB_INTERFACE_VERSION, int max_ver=INT_MAX, <a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcb">error_mode</a> mode=em_abort)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Initialize object and load TBB. <a href="#7ae5330beb48fce0c702c32a5df0094a"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="c25fec923a751a3e03f5cbe969f1f0c5"></a><!-- doxytag: member="tbb::interface6::runtime_loader::~runtime_loader" ref="c25fec923a751a3e03f5cbe969f1f0c5" args="()" -->
</td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#c25fec923a751a3e03f5cbe969f1f0c5">~runtime_loader</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destroy object. <br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde018789">error_code</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#5f3f6f1683386705a6931acae45f0862">load</a> (char const *path[], int min_ver=TBB_INTERFACE_VERSION, int max_ver=INT_MAX)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Load TBB. <a href="#5f3f6f1683386705a6931acae45f0862"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde018789">error_code</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="a00336.html#78d938ed2e54d38dd38d6609e6c60389">status</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Report status. <a href="#78d938ed2e54d38dd38d6609e6c60389"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
Load TBB at runtime.
<p>
<b>Usage:</b> <p>
In source code:<p>
<div class="fragment"><pre class="fragment"><span class="preprocessor">#include "tbb/runtime_loader.h"</span>
<span class="keywordtype">char</span> <span class="keyword">const</span> * path[] = { <span class="stringliteral">"<install dir>/lib/ia32"</span>, NULL };
tbb::runtime_loader loader( path );
<span class="comment">// Now use TBB.</span>
</pre></div><p>
Link with <code>tbbproxy.lib</code> (or <code>libtbbproxy.a</code>) instead of <code>tbb.lib</code> (<code>libtbb.dylib</code>, <code>libtbb.so</code>).<p>
TBB library will be loaded at runtime from <code></code> <install dir>="">/lib/ia32 directory.<p>
<b>Attention:</b> <p>
All <code><a class="el" href="a00336.html">runtime_loader</a></code> objects (in the same module, i.e. exe or dll) share some global state. The most noticeable piece of global state is loaded TBB library. There are some implications:<p>
<ul>
<li>Only one TBB library can be loaded per module.</li></ul>
<p>
<ul>
<li>If one object has already loaded TBB library, another object will not load TBB. If the loaded TBB library is suitable for the second object, both will use TBB cooperatively, otherwise the second object will report an error.</li></ul>
<p>
<ul>
<li><code><a class="el" href="a00336.html">runtime_loader</a></code> objects will not work (correctly) in parallel due to absence of syncronization. </li></ul>
<p>
<hr><h2>Member Enumeration Documentation</h2>
<a class="anchor" name="6831be91cdc64e57e565ce0dde018789"></a><!-- doxytag: member="tbb::interface6::runtime_loader::error_code" ref="6831be91cdc64e57e565ce0dde018789" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde018789">tbb::interface6::runtime_loader::error_code</a> </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Error codes.
<p>
<dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" name="6831be91cdc64e57e565ce0dde0187891e3a364f63f419e5ea2f1d1e52289b27"></a><!-- doxytag: member="ec_ok" ref="6831be91cdc64e57e565ce0dde0187891e3a364f63f419e5ea2f1d1e52289b27" args="" -->ec_ok</em> </td><td>
No errors. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="6831be91cdc64e57e565ce0dde018789e6ce2b091083b80878cbb70cd00782a1"></a><!-- doxytag: member="ec_bad_call" ref="6831be91cdc64e57e565ce0dde018789e6ce2b091083b80878cbb70cd00782a1" args="" -->ec_bad_call</em> </td><td>
Invalid function call (e. g. <a class="el" href="a00336.html#5f3f6f1683386705a6931acae45f0862">load()</a> called when TBB is already loaded). </td></tr>
<tr><td valign="top"><em><a class="anchor" name="6831be91cdc64e57e565ce0dde01878927e94a7b173bb8d0623bf48aad8fc703"></a><!-- doxytag: member="ec_bad_arg" ref="6831be91cdc64e57e565ce0dde01878927e94a7b173bb8d0623bf48aad8fc703" args="" -->ec_bad_arg</em> </td><td>
Invalid argument passed. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="6831be91cdc64e57e565ce0dde01878903ee81d8c05966bc1125666713dee5f6"></a><!-- doxytag: member="ec_bad_lib" ref="6831be91cdc64e57e565ce0dde01878903ee81d8c05966bc1125666713dee5f6" args="" -->ec_bad_lib</em> </td><td>
Invalid library found (e. g. <code>TBB_runtime_version</code> symbol not found). </td></tr>
<tr><td valign="top"><em><a class="anchor" name="6831be91cdc64e57e565ce0dde01878907790f32918e60d670a96c1f0349e8d6"></a><!-- doxytag: member="ec_bad_ver" ref="6831be91cdc64e57e565ce0dde01878907790f32918e60d670a96c1f0349e8d6" args="" -->ec_bad_ver</em> </td><td>
TBB found but version is not suitable. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="6831be91cdc64e57e565ce0dde01878902acc03ebfcdb16e3e26b24f64da2bdb"></a><!-- doxytag: member="ec_no_lib" ref="6831be91cdc64e57e565ce0dde01878902acc03ebfcdb16e3e26b24f64da2bdb" args="" -->ec_no_lib</em> </td><td>
No suitable TBB library found. </td></tr>
</table>
</dl>
</div>
</div><p>
<a class="anchor" name="bb0130fe0f596399707e61431231ebcb"></a><!-- doxytag: member="tbb::interface6::runtime_loader::error_mode" ref="bb0130fe0f596399707e61431231ebcb" args="" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">enum <a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcb">tbb::interface6::runtime_loader::error_mode</a> </td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Error mode constants.
<p>
<dl compact><dt><b>Enumerator: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em><a class="anchor" name="bb0130fe0f596399707e61431231ebcbdb47fe5ffbd2eaf47e6de0af433ada38"></a><!-- doxytag: member="em_status" ref="bb0130fe0f596399707e61431231ebcbdb47fe5ffbd2eaf47e6de0af433ada38" args="" -->em_status</em> </td><td>
Save status of operation and continue. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="bb0130fe0f596399707e61431231ebcbdeb59ca2912432b47fd3ec831574653b"></a><!-- doxytag: member="em_throw" ref="bb0130fe0f596399707e61431231ebcbdeb59ca2912432b47fd3ec831574653b" args="" -->em_throw</em> </td><td>
Throw an exception of tbb::runtime_loader::error_code type. </td></tr>
<tr><td valign="top"><em><a class="anchor" name="bb0130fe0f596399707e61431231ebcb630dd30c9ba61d5ab187e80313bbad94"></a><!-- doxytag: member="em_abort" ref="bb0130fe0f596399707e61431231ebcb630dd30c9ba61d5ab187e80313bbad94" args="" -->em_abort</em> </td><td>
Print message to <code>stderr</code> and call <code>abort()</code>. </td></tr>
</table>
</dl>
</div>
</div><p>
<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="7ae5330beb48fce0c702c32a5df0094a"></a><!-- doxytag: member="tbb::interface6::runtime_loader::runtime_loader" ref="7ae5330beb48fce0c702c32a5df0094a" args="(char const *path[], int min_ver=TBB_INTERFACE_VERSION, int max_ver=INT_MAX, error_mode mode=em_abort)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">tbb::interface6::runtime_loader::runtime_loader </td>
<td>(</td>
<td class="paramtype">char const * </td>
<td class="paramname"> <em>path</em>[], </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>min_ver</em> = <code>TBB_INTERFACE_VERSION</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>max_ver</em> = <code>INT_MAX</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="a00336.html#bb0130fe0f596399707e61431231ebcb">error_mode</a> </td>
<td class="paramname"> <em>mode</em> = <code>em_abort</code></td><td> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td width="100%"></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>
Initialize object and load TBB.
<p>
See <a class="el" href="a00336.html#5f3f6f1683386705a6931acae45f0862">load()</a> for details.<p>
If error mode is <code>em_status</code>, call <a class="el" href="a00336.html#78d938ed2e54d38dd38d6609e6c60389">status()</a> to check whether TBB was loaded or not. <dl compact><dt><b>Parameters: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em>path</em> </td><td>
List of directories to search TBB in. </td></tr>
<tr><td valign="top"><em>min_ver</em> </td><td>
Minimal suitable version of TBB. </td></tr>
<tr><td valign="top"><em>max_ver</em> </td><td>
Maximal suitable version of TBB. </td></tr>
<tr><td valign="top"><em>mode</em> </td><td>
Error mode for this object. </td></tr>
</table>
</dl>
</div>
</div><p>
<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="5f3f6f1683386705a6931acae45f0862"></a><!-- doxytag: member="tbb::interface6::runtime_loader::load" ref="5f3f6f1683386705a6931acae45f0862" args="(char const *path[], int min_ver=TBB_INTERFACE_VERSION, int max_ver=INT_MAX)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
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<td class="memname"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde018789">error_code</a> tbb::interface6::runtime_loader::load </td>
<td>(</td>
<td class="paramtype">char const * </td>
<td class="paramname"> <em>path</em>[], </td>
</tr>
<tr>
<td class="paramkey"></td>
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<td class="paramtype">int </td>
<td class="paramname"> <em>min_ver</em> = <code>TBB_INTERFACE_VERSION</code>, </td>
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<td class="paramname"> <em>max_ver</em> = <code>INT_MAX</code></td><td> </td>
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Load TBB.
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The method searches the directories specified in <code>path</code>[] array for the TBB library. When the library is found, it is loaded and its version is checked. If the version is not suitable, the library is unloaded, and the search continues.<p>
<b>Note:</b> <p>
For security reasons, avoid using relative directory names. For example, never load TBB from current (<code>"."</code>), parent (<code>".."</code>) or any other relative directory (like <code>"lib"</code> ). Use only absolute directory names (e. g. "/usr/local/lib").<p>
For the same security reasons, avoid using system default directories (<code>""</code>) on Windows. (See <a href="http://www.microsoft.com/technet/security/advisory/2269637.mspx">http://www.microsoft.com/technet/security/advisory/2269637.mspx</a> for details.)<p>
Neglecting these rules may cause your program to execute 3-rd party malicious code.<p>
<b>Errors:</b> <ul>
<li><code>ec_bad_call</code> - TBB already loaded by this object.</li><li><code>ec_bad_arg</code> - <code>min_ver</code> and/or <code>max_ver</code> negative or zero, or <code>min_ver</code> > <code>max_ver</code>.</li><li><code>ec_bad_ver</code> - TBB of unsuitable version already loaded by another object.</li><li><code>ec_no_lib</code> - No suitable library found. </li></ul>
<dl compact><dt><b>Parameters: </b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"><em>path</em> </td><td>
List of directories to search TBB in. </td></tr>
<tr><td valign="top"><em>min_ver</em> </td><td>
Minimal suitable version of TBB. </td></tr>
<tr><td valign="top"><em>max_ver</em> </td><td>
Maximal suitable version of TBB. </td></tr>
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</dl>
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<a class="anchor" name="78d938ed2e54d38dd38d6609e6c60389"></a><!-- doxytag: member="tbb::interface6::runtime_loader::status" ref="78d938ed2e54d38dd38d6609e6c60389" args="()" -->
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<td class="memname"><a class="el" href="a00336.html#6831be91cdc64e57e565ce0dde018789">error_code</a> tbb::interface6::runtime_loader::status </td>
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Report status.
<p>
If error mode is <code>em_status</code>, the function returns status of the last operation.
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<hr>The documentation for this class was generated from the following file:<ul>
<li>runtime_loader.h</ul>
<hr>
<p></p>
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