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threading: make CountingSemaphore/CountingSemaphoreGrant template types

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Cory Fields
2025-05-08 18:54:59 +00:00
parent e6ce5f9e78
commit 1acacfbad7
1 changed files with 9 additions and 6 deletions
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15
src/sync.h
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@@ -16,6 +16,7 @@
#include <condition_variable>
#include <mutex>
#include <semaphore>
#include <string>
#include <thread>
@@ -304,6 +305,7 @@ inline MutexType* MaybeCheckNotHeld(MutexType* m) LOCKS_EXCLUDED(m) LOCK_RETURNE
*
* See https://en.wikipedia.org/wiki/Semaphore_(programming)
*/
template <std::ptrdiff_t LeastMaxValue = std::counting_semaphore<>::max()>
class CountingSemaphore
{
private:
@@ -348,14 +350,15 @@ public:
}
};
using BinarySemaphore = CountingSemaphore;
using Semaphore = CountingSemaphore;
using BinarySemaphore = CountingSemaphore<1>;
using Semaphore = CountingSemaphore<>;
/** RAII-style semaphore lock */
template <std::ptrdiff_t LeastMaxValue = std::counting_semaphore<>::max()>
class CountingSemaphoreGrant
{
private:
CountingSemaphore* sem;
CountingSemaphore<LeastMaxValue>* sem;
bool fHaveGrant;
public:
@@ -410,7 +413,7 @@ public:
CountingSemaphoreGrant() noexcept : sem(nullptr), fHaveGrant(false) {}
explicit CountingSemaphoreGrant(CountingSemaphore& sema, bool fTry = false) noexcept : sem(&sema), fHaveGrant(false)
explicit CountingSemaphoreGrant(CountingSemaphore<LeastMaxValue>& sema, bool fTry = false) noexcept : sem(&sema), fHaveGrant(false)
{
if (fTry) {
TryAcquire();
@@ -430,7 +433,7 @@ public:
}
};
using BinarySemaphoreGrant = CountingSemaphoreGrant;
using SemaphoreGrant = CountingSemaphoreGrant;
using BinarySemaphoreGrant = CountingSemaphoreGrant<1>;
using SemaphoreGrant = CountingSemaphoreGrant<>;
#endif // BITCOIN_SYNC_H