cml_8cpp-source.html

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<a name="l00316"></a>00316    <span class="comment">// Flush the file if requested to do so</span>
<a name="l00317"></a>00317    <span class="keywordflow">if</span>( flushOutput )
<a name="l00318"></a>00318       <a class="code" href="classCopleyMotionLibrary.html#a6">FlushLog</a>();
<a name="l00319"></a>00319 
<a name="l00320"></a>00320    <span class="keywordflow">if</span>( logSize &gt; maxLogSize )
<a name="l00321"></a>00321       ResizeLog();
<a name="l00322"></a>00322 <span class="preprocessor">#endif</span>
<a name="l00323"></a>00323 <span class="preprocessor"></span>}
<a name="l00324"></a>00324 
<a name="l00325"></a>00325 <span class="comment">/***************************************************************************/</span><span class="comment"></span>
<a name="l00326"></a>00326 <span class="comment">/**</span>
<a name="l00327"></a>00327 <span class="comment">Write a warning message to the log file.  The debug level must be set &gt;= LOG_WARNINGS</span>
<a name="l00328"></a>00328 <span class="comment">for this message to be written.</span>
<a name="l00329"></a>00329 <span class="comment"></span>
<a name="l00330"></a>00330 <span class="comment">Note that message logging is only available if file support is enabled in </span>
<a name="l00331"></a>00331 <span class="comment">the CML_Settings.h file.</span>
<a name="l00332"></a>00332 <span class="comment"></span>
<a name="l00333"></a>00333 <span class="comment">@param fmt A printf style format string</span>
<a name="l00334"></a>00334 <span class="comment">*/</span>
<a name="l00335"></a>00335 <span class="comment">/***************************************************************************/</span>
<a name="l00336"></a><a class="code" href="classCopleyMotionLibrary.html#a9">00336</a> <span class="keywordtype">void</span> <a class="code" href="classCopleyMotionLibrary.html#a9">CopleyMotionLibrary::Warn</a>( <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, ... )
<a name="l00337"></a>00337 {
<a name="l00338"></a>00338 <span class="preprocessor">#ifdef CML_FILE_ACCESS_OK</span>
<a name="l00339"></a>00339 <span class="preprocessor"></span>   <span class="keywordflow">if</span>( debugLevel &lt; <a class="code" href="CML_8h.html#a8a3">LOG_WARNINGS</a> ) <span class="keywordflow">return</span>;
<a name="l00340"></a>00340 
<a name="l00341"></a>00341    <span class="comment">// Return immediately if the log file can't be open</span>
<a name="l00342"></a>00342    <span class="keywordflow">if</span>( !OpenLogFile() ) <span class="keywordflow">return</span>;
<a name="l00343"></a>00343 
<a name="l00344"></a>00344    <span class="comment">// Write to the file.</span>
<a name="l00345"></a>00345    va_list ap;
<a name="l00346"></a>00346    va_start( ap, fmt );
<a name="l00347"></a>00347    logSize += vfprintf( (FILE *)log, fmt, ap );
<a name="l00348"></a>00348    mutex.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00349"></a>00349    va_end( ap );
<a name="l00350"></a>00350 
<a name="l00351"></a>00351    <span class="comment">// Flush the file if requested to do so</span>
<a name="l00352"></a>00352    <span class="keywordflow">if</span>( flushOutput )
<a name="l00353"></a>00353       <a class="code" href="classCopleyMotionLibrary.html#a6">FlushLog</a>();
<a name="l00354"></a>00354 
<a name="l00355"></a>00355    <span class="keywordflow">if</span>( logSize &gt; maxLogSize )
<a name="l00356"></a>00356       ResizeLog();
<a name="l00357"></a>00357 <span class="preprocessor">#endif</span>
<a name="l00358"></a>00358 <span class="preprocessor"></span>}
<a name="l00359"></a>00359 
<a name="l00360"></a>00360 <span class="comment">/***************************************************************************/</span><span class="comment"></span>
<a name="l00361"></a>00361 <span class="comment">/**</span>
<a name="l00362"></a>00362 <span class="comment">Write an error message to the log file.  The debug level must be set &gt;= LOG_ERRORS</span>
<a name="l00363"></a>00363 <span class="comment">for this message to be written.</span>
<a name="l00364"></a>00364 <span class="comment"></span>
<a name="l00365"></a>00365 <span class="comment">Note that message logging is only available if file support is enabled in </span>
<a name="l00366"></a>00366 <span class="comment">the CML_Settings.h file.</span>
<a name="l00367"></a>00367 <span class="comment"></span>
<a name="l00368"></a>00368 <span class="comment">@param fmt A printf style format string</span>
<a name="l00369"></a>00369 <span class="comment">*/</span>
<a name="l00370"></a>00370 <span class="comment">/***************************************************************************/</span>
<a name="l00371"></a><a class="code" href="classCopleyMotionLibrary.html#a10">00371</a> <span class="keywordtype">void</span> <a class="code" href="classCopleyMotionLibrary.html#a10">CopleyMotionLibrary::Error</a>( <span class="keyword">const</span> <span class="keywordtype">char</span> *fmt, ... )
<a name="l00372"></a>00372 {
<a name="l00373"></a>00373 <span class="preprocessor">#ifdef CML_FILE_ACCESS_OK</span>
<a name="l00374"></a>00374 <span class="preprocessor"></span>   <span class="keywordflow">if</span>( debugLevel &lt; <a class="code" href="CML_8h.html#a8a2">LOG_ERRORS</a> ) <span class="keywordflow">return</span>;
<a name="l00375"></a>00375 
<a name="l00376"></a>00376    <span class="comment">// Return immediately if the log file can't be open</span>
<a name="l00377"></a>00377    <span class="keywordflow">if</span>( !OpenLogFile() ) <span class="keywordflow">return</span>;
<a name="l00378"></a>00378 
<a name="l00379"></a>00379    <span class="comment">// Write to the file.</span>
<a name="l00380"></a>00380    va_list ap;
<a name="l00381"></a>00381    va_start( ap, fmt );
<a name="l00382"></a>00382    logSize += vfprintf( (FILE *)log, fmt, ap );
<a name="l00383"></a>00383    mutex.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00384"></a>00384    va_end( ap );
<a name="l00385"></a>00385 
<a name="l00386"></a>00386    <span class="comment">// Flush the file if requested to do so</span>
<a name="l00387"></a>00387    <span class="keywordflow">if</span>( flushOutput )
<a name="l00388"></a>00388       <a class="code" href="classCopleyMotionLibrary.html#a6">FlushLog</a>();
<a name="l00389"></a>00389 
<a name="l00390"></a>00390    <span class="keywordflow">if</span>( logSize &gt; maxLogSize )
<a name="l00391"></a>00391       ResizeLog();
<a name="l00392"></a>00392 <span class="preprocessor">#endif</span>
<a name="l00393"></a>00393 <span class="preprocessor"></span>}
<a name="l00394"></a>00394 
<a name="l00395"></a>00395 <span class="comment">/***************************************************************************/</span><span class="comment"></span>
<a name="l00396"></a>00396 <span class="comment">/**</span>
<a name="l00397"></a>00397 <span class="comment">Open the log file.  </span>
<a name="l00398"></a>00398 <span class="comment"></span>
<a name="l00399"></a>00399 <span class="comment">This method tries to open the log file.  If successful, or if the file was</span>
<a name="l00400"></a>00400 <span class="comment">already open, it returns true with the mutex locked.</span>
<a name="l00401"></a>00401 <span class="comment"></span>
<a name="l00402"></a>00402 <span class="comment">If the file can't be open for any reason, the debug level</span>
<a name="l00403"></a>00403 <span class="comment">will be set to zero to prevent any further attempts to write to it.</span>
<a name="l00404"></a>00404 <span class="comment">In this case the method will return false with the mutex unlocked.</span>
<a name="l00405"></a>00405 <span class="comment"></span>
<a name="l00406"></a>00406 <span class="comment">@return true if the file was opened successfully.</span>
<a name="l00407"></a>00407 <span class="comment">*/</span>
<a name="l00408"></a>00408 <span class="comment">/***************************************************************************/</span>
<a name="l00409"></a>00409 <span class="keywordtype">bool</span> CopleyMotionLibrary::OpenLogFile( <span class="keywordtype">void</span> )
<a name="l00410"></a>00410 {
<a name="l00411"></a>00411    <span class="keywordflow">if</span>( destroyed ) <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00412"></a>00412 
<a name="l00413"></a>00413 <span class="preprocessor">#ifndef CML_FILE_ACCESS_OK</span>
<a name="l00414"></a>00414 <span class="preprocessor"></span>   <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00415"></a>00415 <span class="preprocessor">#else</span>
<a name="l00416"></a>00416 <span class="preprocessor"></span>   mutex.<a class="code" href="classMutex.html#a2">Lock</a>();
<a name="l00417"></a>00417 
<a name="l00418"></a>00418    <span class="keywordflow">if</span>( destroyed )
<a name="l00419"></a>00419    {
<a name="l00420"></a>00420       mutex.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00421"></a>00421       <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00422"></a>00422    }
<a name="l00423"></a>00423 
<a name="l00424"></a>00424    <span class="comment">// Return true (with the mutex locked) if the log is already open</span>
<a name="l00425"></a>00425    <span class="keywordflow">if</span>( log )
<a name="l00426"></a>00426       <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00427"></a>00427 
<a name="l00428"></a>00428    <span class="comment">// Backup any old log file</span>
<a name="l00429"></a>00429    <span class="keywordflow">if</span>( logFileBackup )
<a name="l00430"></a>00430    {
<a name="l00431"></a>00431       remove( logFileBackup );
<a name="l00432"></a>00432       rename( logFileName, logFileBackup );
<a name="l00433"></a>00433    }
<a name="l00434"></a>00434 
<a name="l00435"></a>00435    <span class="comment">// Try to open the log file.</span>
<a name="l00436"></a>00436    log = (<span class="keywordtype">void</span>*)fopen( logFileName, <span class="stringliteral">"w+"</span> );
<a name="l00437"></a>00437    <span class="keywordflow">if</span>( log == NULL )
<a name="l00438"></a>00438    {
<a name="l00439"></a>00439       debugLevel = <a class="code" href="CML_8h.html#a8a1">LOG_NONE</a>;
<a name="l00440"></a>00440       mutex.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00441"></a>00441       <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00442"></a>00442    }
<a name="l00443"></a>00443    <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00444"></a>00444 <span class="preprocessor">#endif</span>
<a name="l00445"></a>00445 <span class="preprocessor"></span>}
<a name="l00446"></a>00446 
<a name="l00447"></a>00447 <span class="comment">/***************************************************************************/</span><span class="comment"></span>
<a name="l00448"></a>00448 <span class="comment">/**</span>
<a name="l00449"></a>00449 <span class="comment">Resize the log file.  This is called when the log file size exceeds the max</span>
<a name="l00450"></a>00450 <span class="comment">value.  The log file will be closed and renamed as a backup (overwriting any</span>
<a name="l00451"></a>00451 <span class="comment">existing backup), and a new file will be created.</span>
<a name="l00452"></a>00452 <span class="comment">*/</span>
<a name="l00453"></a>00453 <span class="comment">/***************************************************************************/</span>
<a name="l00454"></a>00454 <span class="keywordtype">void</span> CopleyMotionLibrary::ResizeLog( <span class="keywordtype">void</span> )
<a name="l00455"></a>00455 {
<a name="l00456"></a>00456 <span class="preprocessor">#ifdef CML_FILE_ACCESS_OK</span>
<a name="l00457"></a>00457 <span class="preprocessor"></span>   mutex.<a class="code" href="classMutex.html#a2">Lock</a>();
<a name="l00458"></a>00458    <span class="keywordflow">if</span>( log )
<a name="l00459"></a>00459    {
<a name="l00460"></a>00460       fclose( (FILE*)log );
<a name="l00461"></a>00461       log = 0;
<a name="l00462"></a>00462       logSize = 0;
<a name="l00463"></a>00463    }
<a name="l00464"></a>00464    mutex.<a class="code" href="classMutex.html#a3">Unlock</a>();
<a name="l00465"></a>00465 <span class="preprocessor">#endif</span>
<a name="l00466"></a>00466 <span class="preprocessor"></span>}
</pre></div><hr>
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