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T102 Don't try to wait for a worker to finish while holding a lock

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on the mutex that protects its finished flag, as it will deadlock.
This commit is contained in:
Mathew Sutcliffe
2017-07-04 23:06:59 +01:00
parent 7317ddd155
commit fdbfda848f
2 changed files with 10 additions and 4 deletions
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6
src/blackmisc/worker.h
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@@ -134,7 +134,7 @@ namespace BlackMisc
}
//! Executes some code (in the caller's thread) if the task has not finished.
//! \threadsafe
//! \threadsafe But the functor will deadlock if it waits for the task to finish.
template <typename F>
void doIfNotFinished(F functor) const
{
@@ -142,8 +142,8 @@ namespace BlackMisc
if (! m_finished) { functor(); }
}
//! Executes some code (in the caller's thread) if the task has not finished and some different code if it has finished.
//! \threadsafe
//! Executes some code (in the caller's thread) if the task has finished and some different code if it has not finished.
//! \threadsafe But the elseFunctor will deadlock if it waits for the task to finish.
template <typename F1, typename F2>
void doIfFinishedElse(F1 ifFunctor, F2 elseFunctor) const
{