3 files changed, 47 insertions, 0 deletions
diff --git a/crypto/threads_none.c b/crypto/threads_none.c
index b18587b9f2..a2f4b1fde0 100644
--- a/crypto/threads_none.c
+++ b/crypto/threads_none.c
@@ -148,6 +148,13 @@ int CRYPTO_atomic_load(uint64_t *val, uint64_t *ret, CRYPTO_RWLOCK *lock)
     return 1;
 }
 
+int CRYPTO_atomic_load_int(int *val, int *ret, CRYPTO_RWLOCK *lock)
+{
+    *ret = *val;
+
+    return 1;
+}
+
 int openssl_init_fork_handlers(void)
 {
     return 0;
diff --git a/crypto/threads_pthread.c b/crypto/threads_pthread.c
index 4aeba50479..a511271c53 100644
--- a/crypto/threads_pthread.c
+++ b/crypto/threads_pthread.c
@@ -270,6 +270,30 @@ int CRYPTO_atomic_load(uint64_t *val, uint64_t *ret, CRYPTO_RWLOCK *lock)
 
     return 1;
 }
+
+int CRYPTO_atomic_load_int(int *val, int *ret, CRYPTO_RWLOCK *lock)
+{
+# if defined(__GNUC__) && defined(__ATOMIC_ACQUIRE) && !defined(BROKEN_CLANG_ATOMICS)
+    if (__atomic_is_lock_free(sizeof(*val), val)) {
+        __atomic_load(val, ret, __ATOMIC_ACQUIRE);
+        return 1;
+    }
+# elif defined(__sun) && (defined(__SunOS_5_10) || defined(__SunOS_5_11))
+    /* This will work for all future Solaris versions. */
+    if (ret != NULL) {
+        *ret = (int *)atomic_or_uint_nv((unsigned int *)val, 0);
+        return 1;
+    }
+# endif
+    if (lock == NULL || !CRYPTO_THREAD_read_lock(lock))
+        return 0;
+    *ret  = *val;
+    if (!CRYPTO_THREAD_unlock(lock))
+        return 0;
+
+    return 1;
+}
+
 # ifndef FIPS_MODULE
 int openssl_init_fork_handlers(void)
 {
diff --git a/crypto/threads_win.c b/crypto/threads_win.c
index 7b2e876540..82137b530a 100644
--- a/crypto/threads_win.c
+++ b/crypto/threads_win.c
@@ -251,6 +251,22 @@ int CRYPTO_atomic_load(uint64_t *val, uint64_t *ret, CRYPTO_RWLOCK *lock)
 #endif
 }
 
+int CRYPTO_atomic_load_int(int *val, int *ret, CRYPTO_RWLOCK *lock)
+{
+#if (defined(NO_INTERLOCKEDOR64))
+    if (lock == NULL || !CRYPTO_THREAD_read_lock(lock))
+        return 0;
+    *ret = *val;
+    if (!CRYPTO_THREAD_unlock(lock))
+        return 0;
+
+    return 1;
+#else
+    *ret = (int)InterlockedOr((LONG volatile *)val, 0);
+    return 1;
+#endif
+}
+
 int openssl_init_fork_handlers(void)
 {
     return 0;