More Examples on Using Thread core classes

[prashant patel]

There should be more examples on using thread as being a java programmer i am find it difficult to use threads , the thread example below is what is was trying.

#ifndef MYTHREAD_H
#define MYTHREAD_H

#include "mythread.h"
#include <iostream>
#include <cc++/thread.h>

#ifdef CCXX_NAMESPACES
using namespace std;
using namespace ost;
#endif

class MyThread : public Thread
{
public:
  MyThread();
  ~MyThread();
  void Run();
};
#endif

---------------------cpp---------------------------

#include "mythread.h"

MyThread::MyThread()
{
   cout << "Constructor" << endl;
}

MyThread::~MyThread(){}

void MyThread::Run()
{
   cout << "CommonC++ Thread" << endl;
   while(true)
   {
    cout << "Hello Thread Slept Again" << endl;
    Thread::Sleep(1000);
  }
}

int main()
{
  MyThread *test = new MyThread;
  test->Start();
  //MyThread test;
  //test.Start();
  ccxx_sleep(100);

}

After referring to the example testthread.cpp in demo dir, i had got the thread running when i placed the ccxx_sleep(100) after constructor and the Start(), Also the thread does not sleep for the desired ms just exists.
Why does it behave this way?
How can i run the thread with out theccxx_sleep(100)?
I read the comments on the c++ constructor about not being able to consturct thread
right away, why?
why java threads execute straight away?
I think we need more examples in section like Thread , Socket and Tcp, so more programmer(from java) new to c++ will find it the refrence to use this lib.

[Anonymous]

I don't know if this will help you, but I noticed that you're missing something in your constructor that should really be there.

Instead of:

   MyThread::MyThread()
   {
   cout << "Constructor" << endl;
   }

it should be:

   MyThread::MyThread() : Thread()
   {
   cout << "Constructor" << endl;
   }

This is how I have it in my code where I have used CommonC++ threads.

And perhaps you should have the added brackets to the end of this line:

   MyThread *test = new MyThread();

Probably doesn't make a difference, but you never know.

Good luck. Let me know if things turn out.

Marc

[Anonymous]

I don't know if this will help you, but I noticed that you're missing something in your constructor that should really be there.

Instead of:

   MyThread::MyThread()
   {
   cout << "Constructor" << endl;
   }

it should be:

   MyThread::MyThread() : Thread()
   {
   cout << "Constructor" << endl;
   }

This is how I have it in my code where I have used CommonC++ threads.

And perhaps you should have the added brackets to the end of this line:

   MyThread *test = new MyThread();

Probably doesn't make a difference, but you never know.

Good luck. Let me know if things turn out.

Marc

[prashant patel]

Ok I have figured out how to get the thread to sleep but i still have to insert the call
to ccxx_sleep(1) other wise the thread wont enter Run() how to i do with out it.
-------------the new cpp file-------------------

#include "mythread.h"

#ifdef    CCXX_NAMESPACES
    using namespace std;
    using namespace ost;
#endif

MyThread::MyThread() : Thread(){}

MyThread::~MyThread(){}

void MyThread::Run()
{
    int i = 0;
         while(true)
         {
        cout << "Hello Thread Slept " << ++i << endl;
         Sleep(1000);
   }
}

void MyThread::Initial()
{
    setCancel(THREAD_CANCEL_DISABLED);
}

int main()
{
      MyThread *test = new MyThread;
      test->Start();
      ccxx_sleep(1);
      delete test;
}

[prashant patel]

After trying a lot of option I am not able to get away with the ccxx_sleep() call tried Semaphore but in vain
int main()
{
  Semaphore *smph  = new Semaphore(0);
  MyThread  *test  = new MyThread(smph);
  test->Start(smph);
  smph->Wait();
  //ccxx_sleep(10);
  delete test;
}
and hence calling the Post() which the last statement in the constructor but the
result is the same is there a way other than the ccxx_sleep().