diff options
Diffstat (limited to 'include/internal/refcount.h')
| -rw-r--r-- | include/internal/refcount.h | 118 |
1 files changed, 59 insertions, 59 deletions
diff --git a/include/internal/refcount.h b/include/internal/refcount.h index 64fb77fba58f..121e36bc57ca 100644 --- a/include/internal/refcount.h +++ b/include/internal/refcount.h @@ -7,28 +7,28 @@ * https://www.openssl.org/source/license.html */ #ifndef OSSL_INTERNAL_REFCOUNT_H -# define OSSL_INTERNAL_REFCOUNT_H -# pragma once +#define OSSL_INTERNAL_REFCOUNT_H +#pragma once -# include <openssl/e_os2.h> -# include <openssl/trace.h> +#include <openssl/e_os2.h> +#include <openssl/trace.h> -# if defined(OPENSSL_THREADS) && !defined(OPENSSL_DEV_NO_ATOMICS) -# if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \ - && !defined(__STDC_NO_ATOMICS__) -# include <stdatomic.h> -# define HAVE_C11_ATOMICS -# endif +#if defined(OPENSSL_THREADS) && !defined(OPENSSL_DEV_NO_ATOMICS) +#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L \ + && !defined(__STDC_NO_ATOMICS__) +#include <stdatomic.h> +#define HAVE_C11_ATOMICS +#endif -# if defined(HAVE_C11_ATOMICS) && defined(ATOMIC_INT_LOCK_FREE) \ - && ATOMIC_INT_LOCK_FREE > 0 +#if defined(HAVE_C11_ATOMICS) && defined(ATOMIC_INT_LOCK_FREE) \ + && ATOMIC_INT_LOCK_FREE > 0 -# define HAVE_ATOMICS 1 +#define HAVE_ATOMICS 1 typedef _Atomic int CRYPTO_REF_COUNT; static inline int CRYPTO_UP_REF(_Atomic int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = atomic_fetch_add_explicit(val, 1, memory_order_relaxed) + 1; return 1; @@ -45,7 +45,7 @@ static inline int CRYPTO_UP_REF(_Atomic int *val, int *ret, * otherwise imply an acquire fence. Hence conditional acquire fence... */ static inline int CRYPTO_DOWN_REF(_Atomic int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = atomic_fetch_sub_explicit(val, 1, memory_order_relaxed) - 1; if (*ret == 0) @@ -53,9 +53,9 @@ static inline int CRYPTO_DOWN_REF(_Atomic int *val, int *ret, return 1; } -# elif defined(__GNUC__) && defined(__ATOMIC_RELAXED) && __GCC_ATOMIC_INT_LOCK_FREE > 0 +#elif defined(__GNUC__) && defined(__ATOMIC_RELAXED) && __GCC_ATOMIC_INT_LOCK_FREE > 0 -# define HAVE_ATOMICS 1 +#define HAVE_ATOMICS 1 typedef int CRYPTO_REF_COUNT; @@ -66,113 +66,113 @@ static __inline__ int CRYPTO_UP_REF(int *val, int *ret, ossl_unused void *lock) } static __inline__ int CRYPTO_DOWN_REF(int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = __atomic_fetch_sub(val, 1, __ATOMIC_RELAXED) - 1; if (*ret == 0) __atomic_thread_fence(__ATOMIC_ACQUIRE); return 1; } -# elif defined(__ICL) && defined(_WIN32) -# define HAVE_ATOMICS 1 +#elif defined(__ICL) && defined(_WIN32) +#define HAVE_ATOMICS 1 typedef volatile int CRYPTO_REF_COUNT; static __inline int CRYPTO_UP_REF(volatile int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = _InterlockedExchangeAdd((void *)val, 1) + 1; return 1; } static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = _InterlockedExchangeAdd((void *)val, -1) - 1; return 1; } -# elif defined(_MSC_VER) && _MSC_VER>=1200 +#elif defined(_MSC_VER) && _MSC_VER >= 1200 -# define HAVE_ATOMICS 1 +#define HAVE_ATOMICS 1 typedef volatile int CRYPTO_REF_COUNT; -# if (defined(_M_ARM) && _M_ARM>=7 && !defined(_WIN32_WCE)) || defined(_M_ARM64) -# include <intrin.h> -# if defined(_M_ARM64) && !defined(_ARM_BARRIER_ISH) -# define _ARM_BARRIER_ISH _ARM64_BARRIER_ISH -# endif +#if (defined(_M_ARM) && _M_ARM >= 7 && !defined(_WIN32_WCE)) || defined(_M_ARM64) +#include <intrin.h> +#if defined(_M_ARM64) && !defined(_ARM_BARRIER_ISH) +#define _ARM_BARRIER_ISH _ARM64_BARRIER_ISH +#endif static __inline int CRYPTO_UP_REF(volatile int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = _InterlockedExchangeAdd_nf(val, 1) + 1; return 1; } static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = _InterlockedExchangeAdd_nf(val, -1) - 1; if (*ret == 0) __dmb(_ARM_BARRIER_ISH); return 1; } -# else -# if !defined(_WIN32_WCE) -# pragma intrinsic(_InterlockedExchangeAdd) -# else -# if _WIN32_WCE >= 0x600 - extern long __cdecl _InterlockedExchangeAdd(long volatile*, long); -# else - /* under Windows CE we still have old-style Interlocked* functions */ - extern long __cdecl InterlockedExchangeAdd(long volatile*, long); -# define _InterlockedExchangeAdd InterlockedExchangeAdd -# endif -# endif +#else +#if !defined(_WIN32_WCE) +#pragma intrinsic(_InterlockedExchangeAdd) +#else +#if _WIN32_WCE >= 0x600 +extern long __cdecl _InterlockedExchangeAdd(long volatile *, long); +#else +/* under Windows CE we still have old-style Interlocked* functions */ +extern long __cdecl InterlockedExchangeAdd(long volatile *, long); +#define _InterlockedExchangeAdd InterlockedExchangeAdd +#endif +#endif static __inline int CRYPTO_UP_REF(volatile int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = _InterlockedExchangeAdd((long volatile *)val, 1) + 1; return 1; } static __inline int CRYPTO_DOWN_REF(volatile int *val, int *ret, - ossl_unused void *lock) + ossl_unused void *lock) { *ret = _InterlockedExchangeAdd((long volatile *)val, -1) - 1; return 1; } -# endif +#endif -# endif -# endif /* !OPENSSL_DEV_NO_ATOMICS */ +#endif +#endif /* !OPENSSL_DEV_NO_ATOMICS */ /* * All the refcounting implementations above define HAVE_ATOMICS, so if it's * still undefined here (such as when OPENSSL_DEV_NO_ATOMICS is defined), it * means we need to implement a fallback. This fallback uses locks. */ -# ifndef HAVE_ATOMICS +#ifndef HAVE_ATOMICS typedef int CRYPTO_REF_COUNT; -# 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) +#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) -# endif +#endif -# if !defined(NDEBUG) && !defined(OPENSSL_NO_STDIO) -# define REF_ASSERT_ISNT(test) \ +#if !defined(NDEBUG) && !defined(OPENSSL_NO_STDIO) +#define REF_ASSERT_ISNT(test) \ (void)((test) ? (OPENSSL_die("refcount error", __FILE__, __LINE__), 1) : 0) -# else -# define REF_ASSERT_ISNT(i) -# endif +#else +#define REF_ASSERT_ISNT(i) +#endif -# define REF_PRINT_EX(text, count, object) \ +#define REF_PRINT_EX(text, count, object) \ OSSL_TRACE3(REF_COUNT, "%p:%4d:%s\n", (object), (count), (text)); -# define REF_PRINT_COUNT(text, object) \ +#define REF_PRINT_COUNT(text, object) \ REF_PRINT_EX(text, object->references, (void *)object) #endif |