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QuestionHow to deallocate memory allocated to a class instance Pin
meerokh21-Sep-18 5:58
Membermeerokh21-Sep-18 5:58 
In constructor of my class WorkPackage, I am allocating a stack to each instance of workpackage and adding it to a queue. When a workpackage gets executed, the allocated stack get released in class destructor. The problem is that my destructor gets called before the execution of workpackage and program crashes with segmentation fault. I looked it up and thought that it is because of when i get the package from the queue:

PackageQueue.cpp
WorkPackage PackageQueue::GetWorkPackage(){
	if (isEmpty())
	    {
		return WorkPackage(); // return an empty work package
	    }
		pthread_mutex_lock(&getlock);
		WorkPackage data=WorkPackageQueue[front];
	    if (front == rear)
	    {
	        rear = -1;
	        front = -1;
	    }

	    else if (front == 0)
	        front = size-1;
	    else
	        front--;
	     pthread_mutex_unlock(&getlock);
	     return WorkPackage(data);
	}


I created a copy contructor to allocate a new stack to the instance in case of deletion after GetWorkPackage function

WorkPackage::WorkPackage(const WorkPackage& rhs){
	Wp_localstack.local_stack= Stack::make_stack();
	m_action=rhs.m_action;
	m_arguments=rhs.m_arguments;
}


But the problem is still there..Need hints to how can i do this correctly. I will provide more code if needed

modified 21-Sep-18 12:07pm.

AnswerRe: How to deallocate memory allocated to a class instance Pin
Victor Nijegorodov21-Sep-18 8:30
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meerokh21-Sep-18 11:27
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AnswerRe: What are Destructors in Object-Oriented Programming Pin
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QuestionWant to learn C. Newbie. Where to start? Pin
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