Commit 6891a79d authored by Richard Levitte's avatar Richard Levitte
Browse files

Add internal functions to fetch a refcount 



Reviewed-by: default avatarTim Hudson <tjh@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/3573)
parent df578aa0

include/internal/refcount.h

+13 −0
Original line number Diff line number Diff line
@@ -22,6 +22,12 @@ 


typedef _Atomic int CRYPTO_REF_COUNT;



static ossl_inline int CRYPTO_GET_REF(_Atomic int *val, int *ret, void *lock)

{

    *ret = atomic_fetch_add_explicit(val, 0, memory_order_relaxed);

    return 1;

}



static ossl_inline int CRYPTO_UP_REF(_Atomic int *val, int *ret, void *lock)

{

    *ret = atomic_fetch_add_explicit(val, 1, memory_order_relaxed) + 1;
@@ -42,6 +48,12 @@ static ossl_inline int CRYPTO_DOWN_REF(_Atomic int *val, int *ret, void *lock) 


typedef int CRYPTO_REF_COUNT;



static ossl_inline int CRYPTO_GET_REF(_Atomic int *val, int *ret, void *lock)

{

    *ret = __atomic_fetch_add(val, 0, __ATOMIC_RELAXED);

    return 1;

}



static ossl_inline int CRYPTO_UP_REF(int *val, int *ret, void *lock)

{

    *ret = __atomic_fetch_add(val, 1, __ATOMIC_RELAXED) + 1;
@@ -60,6 +72,7 @@ static ossl_inline int CRYPTO_DOWN_REF(int *val, int *ret, void *lock) 


typedef int CRYPTO_REF_COUNT;



# define CRYPTO_GET_REF(val, ret, lock) CRYPTO_atomic_add(val, 0, ret, lock)

# define CRYPTO_UP_REF(val, ret, lock) CRYPTO_atomic_add(val, 1, ret, lock)

# define CRYPTO_DOWN_REF(val, ret, lock) CRYPTO_atomic_add(val, -1, ret, lock)