Add some more CRYPTO_atomic functions

We add an implementation for CRYPTO_atomic_or() and CRYPTO_atomic_load()

Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/13733)

1 files changed, 16 insertions, 3 deletions

diff --git a/crypto/threads_win.c b/crypto/threads_win.c
index a008831a3e..ef68fe2d24 100644
--- a/crypto/threads_win.c
+++ b/crypto/threads_win.c
@@ -66,9 +66,9 @@ void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock)
     return;
 }
 
-#  define ONCE_UNINITED     0
-#  define ONCE_ININIT       1
-#  define ONCE_DONE         2
+# define ONCE_UNINITED     0
+# define ONCE_ININIT       1
+# define ONCE_DONE         2
 
 /*
  * We don't use InitOnceExecuteOnce because that isn't available in WinXP which
@@ -159,6 +159,19 @@ int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
     return 1;
 }
 
+int CRYPTO_atomic_or(uint64_t *val, uint64_t op, uint64_t *ret,
+                     CRYPTO_RWLOCK *lock)
+{
+    *ret = (uint64_t)InterlockedOr64((LONG64 volatile *)val, (LONG64)op) | op;
+    return 1;
+}
+
+int CRYPTO_atomic_load(uint64_t *val, uint64_t *ret, CRYPTO_RWLOCK *lock)
+{
+    *ret = (uint64_t)InterlockedOr64((LONG64 volatile *)val, 0);
+    return 1;
+}
+
 int openssl_init_fork_handlers(void)
 {
     return 0;