Thread: pthread hanging

hi all
i am doing a gui application using pthread
if i do like this my application is not hanging.

Code:

      pthread_t thread;
      gint  iret1;
      iret1=pthread_create( &thread, NULL, write_data, NULL);

and if i do like this my application is hanging

Code:

      pthread_t thread;
      gint  iret1;
      iret1=pthread_create( &thread, NULL, write_data, NULL);
      pthread_join( thread, NULL );

and also what is the deference b/w
pthread_exit(NULL) and
pthread_exit(0);

but i need to join the thread.
can you help me

how can i solve this problem

thank you in advance

sorry for this.

Originally Posted by zacs7

They're both the same.

and what about this

i am doing a gui application using pthread
if i do like this my application is not hanging.


pthread_t thread;
gint iret1;
iret1=pthread_create( &thread, NULL, write_data, NULL);

and if i do like this my application is hanging


pthread_t thread;
gint iret1;
iret1=pthread_create( &thread, NULL, write_data, NULL);
pthread_join( thread, NULL );

but i need to join the thread.
can you help me

how can i solve this problem

Originally Posted by zacs7

pthread_join() waits until the target thread is finished before continuing... So of course it's going to lock up. Your going to miss GUI messages, (so your 'dialog' will freeze).

http://www.opengroup.org/onlinepubs/...read_join.html

but i need to join the thread.(with out hanging)
is there any way

thank you in advance

Originally Posted by munna_dude

but i need to join the thread.(with out hanging)
is there any way

No. A non-blocking join is a contradiction. Either detach the thread with pthread_detach() so that you no longer have to join it, or join it when its lifetime ends. There is no third option.