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Applied patch #877159: Joinable threads might crash app if deleted right after Wait.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25179 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Dimitri Schoolwerth
2004-01-15 01:20:42 +00:00
parent eb9b610777
commit 5eba439479
1 changed files with 15 additions and 7 deletions
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22
src/msw/thread.cpp
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@@ -484,7 +484,9 @@ THREAD_RETVAL THREAD_CALLCONV wxThreadInternal::WinThreadStart(void *param)
// first of all, check whether we hadn't been cancelled already and don't
// start the user code at all then
if ( thread->m_internal->GetState() == STATE_EXITED )
bool isExited = (thread->m_internal->GetState() == STATE_EXITED);
if ( isExited )
{
rc = (THREAD_RETVAL)-1;
}
@@ -499,17 +501,23 @@ THREAD_RETVAL THREAD_CALLCONV wxThreadInternal::WinThreadStart(void *param)
}
rc = (THREAD_RETVAL)thread->Entry();
// enter m_critsect before changing the thread state
wxCriticalSectionLocker lock(thread->m_critsect);
thread->m_internal->SetState(STATE_EXITED);
}
thread->OnExit();
// save IsDetached because thread object can be deleted by joinable
// threads after state is changed to STATE_EXITED.
bool isDetached = thread->IsDetached();
if (!isExited)
{
// enter m_critsect before changing the thread state
wxCriticalSectionLocker lock(thread->m_critsect);
thread->m_internal->SetState(STATE_EXITED);
}
// the thread may delete itself now if it wants, we don't need it any more
thread->m_internal->LetDie();
if (isDetached) thread->m_internal->LetDie();
return rc;
}