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AP_Common: make WithSemaphore use an AP_HAL::Semaphore reference

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We don't need the specialized one inside WithSemaphore, so use the
abstract one which allows us to more easily convert between current API
and the HAL_Semaphore one.

While at it also remove additional pragma and allow constructor to
receive a pointer for convenience (we will just dereference it).
This commit is contained in:
Lucas De Marchi 2018-08-30 09:00:35 -07:00 committed by Andrew Tridgell
parent cd9b08dbae
commit 1715714488
1 changed files with 9 additions and 6 deletions
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15
libraries/AP_Common/Semaphore.h
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@ -14,8 +14,6 @@
*/
#pragma once
#pragma once
/*
a method to make semaphores less error prone. The WITH_SEMAPHORE()
macro will block forever for a semaphore, and will automatically
@ -28,11 +26,16 @@
The WITH_SEMAPHORE() macro can be used with either type of semaphore
*/
namespace AP_HAL {
class Semaphore;
}
class WithSemaphore {
public:
WithSemaphore(HAL_Semaphore &mtx) :
_mtx(mtx)
{
WithSemaphore(AP_HAL::Semaphore *mtx) : WithSemaphore(*mtx) { }
WithSemaphore(AP_HAL::Semaphore &mtx) : _mtx(mtx) {
_mtx.take_blocking();
}
@ -40,7 +43,7 @@ public:
_mtx.give();
}
private:
HAL_Semaphore &_mtx;
AP_HAL::Semaphore &_mtx;
};
#define WITH_SEMAPHORE(sem) WithSemaphore _getsem(sem)