c++ - QThread confusion -

i'm using qt 4.7.0 (32 bit) on windows 7 ultimate (32 bit) machine. i've been using qt version 4.0 or 4.2 , i've used 4.x.y releases.

recently, qt 4.7 i've faced trouble.

i've written multithreaded application in older version of qt. i've forgotten version last version compiled , ran 4.5.x or 4.6.x. threaded part doesn't seem working correctly in 4.7, or misunderstood something. here problem:

the main thread starts thinker thread. following run() function of thinker thread:

void thinkerthread::run() {     _threads_running = nsubthinkers;      // ...     _sub_thinker[0].start();      // ...         _sub_thinker[1].start();      exec(); } 

the _sub_thinker's finished() signal connected thinkerthread::subthinkerfinished() slot _sub_thinkers. when _sub_thinkers finish, thinkerthread::subthinkerfinished() calls quit().

there place quit() called:

void thinkerthread::trykill() {     (int = 0; < nsubthinkers; i++)         _sub_thinker[i].trykill();     quit(); } 

from main thread, execution follows:

• thinker.trykill() [note: on fist run, thinker wasn't running.]
• thinker.start()

thinker's finished() signal connected automove().

for previous versions of qt, automove() called after thinker::quit() called thinkerthread::subthinkerfinished(). in 4.7 i'm seeing automove() called after first call of thinker.trykill(), though thread wasn't running.

any idea?

of course can check inside thinkerthread::trykill() if thinker running or not. i'd know why happening.

thanks.

i've found qthread::finished() emitted every time qthread::quit() called irrespective of state of qthread (i.e., running/not running). didn't case previous versions of qt.