cml__pdo_8h-source.html

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<a name="l00337"></a>00337       <a class="code" href="CML__Utils_8h.html#a9">int32</a> d = data;
<a name="l00338"></a>00338       m.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00339"></a>00339       <span class="keywordflow">return</span> d;
<a name="l00340"></a>00340    }
<a name="l00341"></a>00341 <span class="comment"></span>
<a name="l00342"></a>00342 <span class="comment">   /// Write a new value to this variable.</span>
<a name="l00343"></a>00343 <span class="comment">   /// @param d The new value to write.</span>
<a name="l00344"></a><a class="code" href="classPmap24.html#a6">00344</a> <span class="comment"></span>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPmap24.html#a6">Write</a>( <a class="code" href="CML__Utils_8h.html#a9">int32</a> d ){
<a name="l00345"></a>00345       m.<a class="code" href="classMutex.html#a2">Lock</a>();
<a name="l00346"></a>00346       data = d;
<a name="l00347"></a>00347       m.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00348"></a>00348    }
<a name="l00349"></a>00349 
<a name="l00350"></a>00350 <span class="keyword">private</span>:<span class="comment"></span>
<a name="l00351"></a>00351 <span class="comment">   /// A mutex used to protect access to this variable</span>
<a name="l00352"></a>00352 <span class="comment"></span>   <a class="code" href="classMutex.html">Mutex</a> m;
<a name="l00353"></a>00353 <span class="comment"></span>
<a name="l00354"></a>00354 <span class="comment">   /// The 32-bit integer associated with this mapping.</span>
<a name="l00355"></a>00355 <span class="comment"></span>   <a class="code" href="CML__Utils_8h.html#a9">int32</a> data;
<a name="l00356"></a>00356 };
<a name="l00357"></a>00357 
<a name="l00358"></a>00358 
<a name="l00359"></a>00359 <span class="comment">/***************************************************************************/</span><span class="comment"></span>
<a name="l00360"></a>00360 <span class="comment">/**</span>
<a name="l00361"></a>00361 <span class="comment">This is a PDO variable mapping class that extends the virtual Pmap class to</span>
<a name="l00362"></a>00362 <span class="comment">handle 16-bit integers.</span>
<a name="l00363"></a>00363 <span class="comment">*/</span>
<a name="l00364"></a>00364 <span class="comment">/***************************************************************************/</span>
<a name="l00365"></a><a class="code" href="classPmap16.html">00365</a> <span class="keyword">class </span><a class="code" href="classPmap16.html">Pmap16</a>: <span class="keyword">public</span> <a class="code" href="classPmap.html">Pmap</a>
<a name="l00366"></a>00366 {
<a name="l00367"></a>00367 <span class="keyword">public</span>:<span class="comment"></span>
<a name="l00368"></a>00368 <span class="comment">   /// Default constructor for a 16-bit mapping object</span>
<a name="l00369"></a><a class="code" href="classPmap16.html#a0">00369</a> <span class="comment"></span>   <a class="code" href="classPmap16.html#a0">Pmap16</a>():data(0){}
<a name="l00370"></a>00370 <span class="comment"></span>
<a name="l00371"></a>00371 <span class="comment">   /// Create a new 16-bit mapping object</span>
<a name="l00372"></a>00372 <span class="comment">   /// @param index Object index associated with this variable</span>
<a name="l00373"></a>00373 <span class="comment">   /// @param sub Object sub-index (defaults to 0)</span>
<a name="l00374"></a><a class="code" href="classPmap16.html#a1">00374</a> <span class="comment"></span>   <a class="code" href="classPmap16.html#a0">Pmap16</a>( <a class="code" href="CML__Utils_8h.html#a8">uint16</a> <a class="code" href="classPmap.html#p0">index</a>, <a class="code" href="CML__Utils_8h.html#a2">byte</a> <a class="code" href="classPmap.html#p1">sub</a>=0 ):<a class="code" href="classPmap.html">Pmap</a>(index,<a class="code" href="classPmap.html#p1">sub</a>,16),data(0) {}
<a name="l00375"></a>00375 <span class="comment"></span>
<a name="l00376"></a>00376 <span class="comment">   /// Initialize a 16-bit mapping object</span>
<a name="l00377"></a>00377 <span class="comment">   /// @param index Object index associated with this variable</span>
<a name="l00378"></a>00378 <span class="comment">   /// @param sub Object sub-index (defaults to 0)</span>
<a name="l00379"></a>00379 <span class="comment">   /// @return An error object</span>
<a name="l00380"></a><a class="code" href="classPmap16.html#a2">00380</a> <span class="comment"></span>   <span class="keyword">const</span> <a class="code" href="classError.html">Error</a> *<a class="code" href="classPmap16.html#a2">Init</a>( <a class="code" href="CML__Utils_8h.html#a8">uint16</a> <a class="code" href="classPmap.html#p0">index</a>, <a class="code" href="CML__Utils_8h.html#a2">byte</a> <a class="code" href="classPmap.html#p1">sub</a>=0 ){
<a name="l00381"></a>00381       <span class="keywordflow">return</span> <a class="code" href="classPmap.html#a3">Pmap::Init</a>( index, <a class="code" href="classPmap.html#p1">sub</a>, 16 );
<a name="l00382"></a>00382    }
<a name="l00383"></a>00383 <span class="comment"></span>
<a name="l00384"></a>00384 <span class="comment">   /// Copy the current value of this variable into the passed</span>
<a name="l00385"></a>00385 <span class="comment">   /// character array.  This function is called when a receive</span>
<a name="l00386"></a>00386 <span class="comment">   /// PDO is about to be transmitted to a node.</span>
<a name="l00387"></a>00387 <span class="comment">   /// @param cptr A character pointer that references a char</span>
<a name="l00388"></a>00388 <span class="comment">   ///        array of at least 2 bytes.  The current value</span>
<a name="l00389"></a>00389 <span class="comment">   ///        of this variable will be copied there.</span>
<a name="l00390"></a><a class="code" href="classPmap16.html#a3">00390</a> <span class="comment"></span>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPmap16.html#a3">Get</a>( <a class="code" href="CML__Utils_8h.html#a2">byte</a> *cptr ){
<a name="l00391"></a>00391       m.<a class="code" href="classMutex.html#a2">Lock</a>();
<a name="l00392"></a>00392       <a class="code" href="CML__Utils_8h.html#a7">int16</a> v = data;
<a name="l00393"></a>00393       m.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00394"></a>00394       cptr[0] = <a class="code" href="CML__Utils_8h.html#a0">ByteCast</a>(v);
<a name="l00395"></a>00395       cptr[1] = <a class="code" href="CML__Utils_8h.html#a0">ByteCast</a>(v&gt;&gt;8);
<a name="l00396"></a>00396    }
<a name="l00397"></a>00397 <span class="comment"></span>
<a name="l00398"></a>00398 <span class="comment">   /// Update the value of this variable based on the data passed</span>
<a name="l00399"></a>00399 <span class="comment">   /// in a character array.  This function is called when a transmit</span>
<a name="l00400"></a>00400 <span class="comment">   /// PDO that this variable is mapped to is received.</span>
<a name="l00401"></a>00401 <span class="comment">   /// @param cptr A character pointer that references a char</span>
<a name="l00402"></a>00402 <span class="comment">   ///        array of at least 2 bytes.  The value of this variable </span>
<a name="l00403"></a>00403 <span class="comment">   ///        will be updated with the data passed in this array.</span>
<a name="l00404"></a><a class="code" href="classPmap16.html#a4">00404</a> <span class="comment"></span>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPmap16.html#a4">Set</a>( <a class="code" href="CML__Utils_8h.html#a2">byte</a> *cptr ){
<a name="l00405"></a>00405       <a class="code" href="CML__Utils_8h.html#a7">int16</a> v = <a class="code" href="CML__Utils_8h.html#a15">bytes_to_int16</a>(cptr);
<a name="l00406"></a>00406       m.<a class="code" href="classMutex.html#a2">Lock</a>();
<a name="l00407"></a>00407       data = v;
<a name="l00408"></a>00408       m.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00409"></a>00409    }
<a name="l00410"></a>00410 <span class="comment"></span>
<a name="l00411"></a>00411 <span class="comment">   /// Read the current value of this variable</span>
<a name="l00412"></a>00412 <span class="comment">   /// @return The current value of this variable.</span>
<a name="l00413"></a><a class="code" href="classPmap16.html#a5">00413</a> <span class="comment"></span>   <span class="keyword">virtual</span> <a class="code" href="CML__Utils_8h.html#a7">int16</a> <a class="code" href="classPmap16.html#a5">Read</a>( <span class="keywordtype">void</span> ){
<a name="l00414"></a>00414       m.<a class="code" href="classMutex.html#a2">Lock</a>();
<a name="l00415"></a>00415       <a class="code" href="CML__Utils_8h.html#a7">int16</a> d = data;
<a name="l00416"></a>00416       m.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00417"></a>00417       <span class="keywordflow">return</span> d;
<a name="l00418"></a>00418    }
<a name="l00419"></a>00419 <span class="comment"></span>
<a name="l00420"></a>00420 <span class="comment">   /// Write a new value to this variable.</span>
<a name="l00421"></a>00421 <span class="comment">   /// @param d The new value to write.</span>
<a name="l00422"></a><a class="code" href="classPmap16.html#a6">00422</a> <span class="comment"></span>   <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classPmap16.html#a6">Write</a>( <a class="code" href="CML__Utils_8h.html#a7">int16</a> d ){
<a name="l00423"></a>00423       m.<a class="code" href="classMutex.html#a2">Lock</a>();
<a name="l00424"></a>00424       data = d;
<a name="l00425"></a>00425       m.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00426"></a>00426    }
<a name="l00427"></a>00427 
<a name="l00428"></a>00428 <span class="keyword">private</span>:<span class="comment"></span>
<a name="l00429"></a>00429 <span class="comment">   /// A mutex used to protect access to this variable</span>
<a name="l00430"></a>00430 <span class="comment"></span>   <a class="code" href="classMutex.html">Mutex</a> m;
<a name="l00431"></a>00431 <span class="comment"></span>
<a name="l00432"></a>00432 <span class="comment">   /// The 16-bit integer associated with this mapping.</span>
<a name="l00433"></a>00433 <span class="comment"></span>   <a class="code" href="CML__Utils_8h.html#a7">int16</a> data;
<a name="l00434"></a>00434 };
<a name="l00435"></a>00435 
<a name="l00436"></a>00436 <span class="comment">/***************************************************************************/</span><span class="comment"></span>
<a name="l00437"></a>00437 <span class="comment">/**</span>
<a name="l00438"></a>00438 <span class="comment">This is a PDO variable mapping class that extends the virtual Pmap class to</span>
<a name="l00439"></a>00439 <span class="comment">handle 8-bit integers.</span>
<a name="l00440"></a>00440 <span class="comment">*/</span>
<a name="l00441"></a>00441 <span class="comment">/***************************************************************************/</span>
<a name="l00442"></a><a class="code" href="classPmap8.html">00442</a> <span class="keyword">class </span><a class="code" href="classPmap8.html">Pmap8</a>: <span class="keyword">public</span> <a class="code" href="classPmap.html">Pmap</a>
<a name="l00443"></a>00443 {
<a name="l00444"></a>00444 <span class="keyword">public</span>:<span class="comment"></span>
<a name="l00445"></a>00445 <span class="comment">   /// Default constructor for a 8-bit mapping object</span>
<a name="l00446"></a><a class="code" href="classPmap8.html#a0">00446</a> <span class="comment"></span>   <a class="code" href="classPmap8.html#a0">Pmap8</a>():data(0){}
<a name="l00447"></a>00447 <span class="comment"></span>
<a name="l00448"></a>00448 <span class="comment">   /// Create a new 8-bit mapping object</span>
<a name="l00449"></a>00449 <span class="comment">   /// @param index Object index associated with this variable</span>
<a name="l00450"></a>00450 <span class="comment">   /// @param sub Object sub-index (defaults to 0)</span>
<a name="l00451"></a><a class="code" href="classPmap8.html#a1">00451</a> <span class="comment"></span>   <a class="code" href="classPmap8.html#a0">Pmap8</a>( <a class="code" href="CML__Utils_8h.html#a8">uint16</a> <a class="code" href="classPmap.html#p0">index</a>, <a class="code" href="CML__Utils_8h.html#a2">byte</a> <a class="code" href="classPmap.html#p1">sub</a>=0 ):<a class="code" href="classPmap.html">Pmap</a>(index,<a class="code" href="classPmap.html#p1">sub</a>,8),data(0){}