dont understand this
collerblade via Digitalmars-d
digitalmars-d at puremagic.com
Sat Sep 24 14:24:40 PDT 2016
fellow D programmers
I would like to ask a question! I would like to create a class,
which works in a separated thread, while the class exisit. This
is important. I want to kill/terminate/stop the third whenn the
class get cleared. Thas what i got so far. This is what i got so
far (very easy solution):
class MyClass {
public:
this() {
Thread thread=new Thread(&threadFunc);
running=true;
thread.start();
}
~this() {
writeln(someVariable);
running=false;
}
private:
bool running=false;
int someVariable=1;
void threadFunc() {
while(running) {
someVariable++;
}
}
}
Becouse core.thread.Thread doesnt have any stop,pause,therminate
method i have to stop the thread by myself (with the help of the
running variable). The problem is: this ISNT WORKING. The reason
is: the destructor never gets called, so the thread runs forever
(application didnt exit). So the GC finds somewhere a pointer to
the class's instance memory (which is ok i think, becouse i use
delegate to create the thread).
But imagagine this: when i change the running variable to static,
everything works as expected, and the app frees and closes
normally. Why is the running variable is different from the other
someVariable??
Before u ask:
- "shared bool running" doesnt works, only static.
- Tried to keep a reference of the Thread as a local variable,
result is the same
- i tried 1000 times the code on 2 different PC, result is the
same (no random pointer somewhere)
- i use latest LDC
Obviously, i want to avoid a static running variable, my class
can have multiple instances.
Ty Collerblade
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