void sub_thread ()//in the child thread open the child thread list 
{
ListWhile (1) 
{
Wait for signals: XXX 
If==stop (XXX) 
{
T: for (auto thread_list) 
{
T - & gt; The join ()//stuck here, couldn't get to the next step 
The next steps 
} 
} the else 
{
Thread_list. Push_back (new thread (... ));//j to join a new thread 
} 
} 
} 

Int main () 
{
While (1) 
{
Wait for signals: XXX 
Thread th (sub_thread ());//open thread and independence 
Th. Detach (); 
} 
} 

CodePudding user response:

The join is waiting thread ends

CodePudding user response:

Oh oh, I didn't clear title, upon receipt of the stop signal thread will automatically stop, but stopped, or obstruction of the join methods, and (assuming that opened in the main two independent sub_thread) sub1 obstruction in the join () here, sub2 will also be blocked, just can't understand what principle