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AP_Common: uniqify semaphore names

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Peter Barker 2019-03-20 15:31:14 +11:00 committed by Peter Barker
parent e6a1789df8
commit 649130adcb
1 changed files with 4 additions and 2 deletions
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6
libraries/AP_Common/Semaphore.h
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@ -48,5 +48,7 @@ private:
AP_HAL::Semaphore &_mtx;
};
#define WITH_SEMAPHORE(sem) WithSemaphore _getsem ## __UNIQ__(sem)
// From: https://stackoverflow.com/questions/19666142/why-is-a-level-of-indirection-needed-for-this-concatenation-macro
#define WITH_SEMAPHORE( sem ) JOIN( sem, __COUNTER__ )
#define JOIN( symbol1, symbol2 ) _DO_JOIN( symbol1, symbol2 )
#define _DO_JOIN( symbol1, symbol2 ) WithSemaphore _getsem ## symbol2(symbol1)