Hi All,

I have created one class LogTask to store logs in certain file.
My problem is it's blocking GUI thread when I call Log(QString("")) .

Here is the code.

Can anyone help me with this???

Thanks in Advance
---
Qt Code: 
  1. [CENTER][B]Task.cpp[/B][/CENTER]
  2.  
  3. typedef QList<QEvent*> Pocket;
  4. Pocket mypocket;
  5. Task::Task():QThread()       //constructor for task
  6. {
  7.     taskmanager::addTask(this);      //adding task to the tasklist
  8.     stopsignal = false;
  9.  
  10. }
  11.  
  12. void Task::run(){
  13. 	while (!stopsignal)
  14. 	{
  15. 		mymutex.lock();
  16. 		mycondition.wait(&mymutex);
  17.  
  18. 		 // got a signal..now process      
  19. 		processIncomingEvents();
  20. 		mymutex.unlock();
  21.  
  22. 	}
  23. }
  24.  
  25. void Task::processIncomingEvents()
  26. {
  27. 	QEvent* e = mypocket.first();
  28. 	while (e){
  29. 		handleEvent(e);
  30.                 mymutex.lock();
  31. 		mypocket.remove(e);
  32.                 mymutex.unlock();
  33. 		e = mypocket.first();		
  34. 	}
  35. 	//mypocket.clear();
  36. }
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Qt Code: 
  1. [CENTER][B]LogTask.h[/B][/CENTER]
  2.  
  3. #define FILE_PATH "d:/Aer2.log"
  4. #define Log(x) LogTask::OutputDebugLog(QString(x+" in %1 in %2 at %3").arg(__FILE__).arg(__FUNCTION__).arg(__LINE__))
  5.  
  6. class LogTask : public Task
  7. {
  8. public:
  9. 	LogTask();
  10.     ~LogTask();
  11.  
  12. 	bool Initialize();
  13. 	bool Finalize();
  14. 	virtual void handleEvent( QEvent* ev );
  15. 	static void OutputDebugLog( const QString & );
  16.  
  17. };
  18.  
  19. //##################################################
  20.  
  21. [CENTER][B]LogTask.cpp[/B][/CENTER]
  22.  
  23. LogTask* currentlogtask=0;
  24.  
  25. LogTask::LogTask()
  26. {
  27.  	currentlogtask = this;
  28. }
  29.  
  30. LogTask::~LogTask()
  31. {
  32.     qDebug("Logtask ended");
  33.     currentlogtask = 0;
  34. }
  35.  
  36. bool LogTask::Initialize()
  37. {
  38.  
  39. /*
  40. 	file.setName(FILE_NAME);
  41. 	if (!file.open(IO_WriteOnly | IO_Append))
  42. 	   return -1;
  43. 	ts.setDevice(&file);*/
  44.  
  45. 	return true;
  46. }
  47.  
  48. bool LogTask::Finalize()
  49. {
  50. 	//ts.flush();
  51. 	//ts.close();
  52.         //file.close();
  53. 	return true;
  54. }
  55.  
  56. void LogTask::OutputDebugLog(const QString &str)
  57. {
  58.  
  59. 	if (currentlogtask) 
  60. 		currentlogtask->acceptEvent( new HonCustomEvent(ETLOG, 0, 0, new QString(str)));
  61. }
  62.  
  63.  
  64.  
  65. void LogTask::handleEvent( QEvent* ev )
  66. {
  67.  	HonCustomEvent* rev =  (HonCustomEvent*) ev;
  68. 	if (rev->eventtype == ETLOG) 
  69. 	{
  70. 		QString path = FILE_PATH;
  71. 		QString* str = (QString* )rev->ptr;
  72. 		QFileInfo fileinfo(path);
  73.  
  74. 		if(fileinfo.size() >= 5000000) 
  75. 		{     ///If file is 5MB in size change the file to output everything
  76. 			QString newpath = QString(FILE_PATH)+"."+"0";
  77. 			QFileInfo tmpinfo(newpath);
  78. 			if(tmpinfo.exists()) 
  79. 			{
  80. 				QDir dir = tmpinfo.dir();
  81. 				dir.remove(newpath);
  82. 			}
  83. 			QFileInfo newinfo(path);
  84. 			QDir newdir = newinfo.dir();
  85. 			newdir.rename(path,newpath);
  86. 		}
  87.  
  88. 		QFile file(path);
  89.  
  90. 		if(!file.open(IO_WriteOnly | IO_Append))
  91. 		{
  92. 			return;
  93. 		}
  94. 		QTextStream ts(&file);
  95.  
  96. 		ts << (*str)+"\n";
  97. 		file.close();
  98. 		delete str;
  99. 	}
  100.  
  101. 	return;
  102. }
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Qt Code: 
  1. [CENTER][B]taskmanager.cpp[/B][/CENTER]
  2.  
  3. #include "taskmanager.h"
  4.  
  5.  
  6. TaskList tasklist;
  7.  
  8. void taskmanager :: stopAllTasks()
  9. {
  10.     Task *t = tasklist.first();
  11.     while(t) {
  12.         t->stopnow(); 
  13.         tasklist.remove(t);
  14.         t = tasklist.first();
  15.     }
  16.     tasklist.clear();
  17.  
  18. }
  19.  
  20. void taskmanager :: addTask(Task *t)
  21. {
  22.  
  23. // Task *t = tasklist.getlast();
  24.  
  25. //add task to the list
  26.    tasklist.append( t );
  27.  
  28. }
  29.  
  30. int taskmanager :: getCountTasks()
  31. {
  32.     return tasklist.count();
  33. }
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