zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/include/internal/thread_once.h b/ap/lib/libssl/openssl-1.1.1o/include/internal/thread_once.h
new file mode 100644
index 0000000..8f8aa6e
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/include/internal/thread_once.h
@@ -0,0 +1,137 @@
+/*
+ * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/crypto.h>
+
+/*
+ * DEFINE_RUN_ONCE: Define an initialiser function that should be run exactly
+ * once. It takes no arguments and returns and int result (1 for success or
+ * 0 for failure). Typical usage might be:
+ *
+ * DEFINE_RUN_ONCE(myinitfunc)
+ * {
+ * do_some_initialisation();
+ * if (init_is_successful())
+ * return 1;
+ *
+ * return 0;
+ * }
+ */
+#define DEFINE_RUN_ONCE(init) \
+ static int init(void); \
+ int init##_ossl_ret_ = 0; \
+ void init##_ossl_(void) \
+ { \
+ init##_ossl_ret_ = init(); \
+ } \
+ static int init(void)
+
+/*
+ * DECLARE_RUN_ONCE: Declare an initialiser function that should be run exactly
+ * once that has been defined in another file via DEFINE_RUN_ONCE().
+ */
+#define DECLARE_RUN_ONCE(init) \
+ extern int init##_ossl_ret_; \
+ void init##_ossl_(void);
+
+/*
+ * DEFINE_RUN_ONCE_STATIC: Define an initialiser function that should be run
+ * exactly once. This function will be declared as static within the file. It
+ * takes no arguments and returns and int result (1 for success or 0 for
+ * failure). Typical usage might be:
+ *
+ * DEFINE_RUN_ONCE_STATIC(myinitfunc)
+ * {
+ * do_some_initialisation();
+ * if (init_is_successful())
+ * return 1;
+ *
+ * return 0;
+ * }
+ */
+#define DEFINE_RUN_ONCE_STATIC(init) \
+ static int init(void); \
+ static int init##_ossl_ret_ = 0; \
+ static void init##_ossl_(void) \
+ { \
+ init##_ossl_ret_ = init(); \
+ } \
+ static int init(void)
+
+/*
+ * DEFINE_RUN_ONCE_STATIC_ALT: Define an alternative initialiser function. This
+ * function will be declared as static within the file. It takes no arguments
+ * and returns an int result (1 for success or 0 for failure). An alternative
+ * initialiser function is expected to be associated with a primary initialiser
+ * function defined via DEFINE_ONCE_STATIC where both functions use the same
+ * CRYPTO_ONCE object to synchronise. Where an alternative initialiser function
+ * is used only one of the primary or the alternative initialiser function will
+ * ever be called - and that function will be called exactly once. Definition
+ * of an alternative initialiser function MUST occur AFTER the definition of the
+ * primary initialiser function.
+ *
+ * Typical usage might be:
+ *
+ * DEFINE_RUN_ONCE_STATIC(myinitfunc)
+ * {
+ * do_some_initialisation();
+ * if (init_is_successful())
+ * return 1;
+ *
+ * return 0;
+ * }
+ *
+ * DEFINE_RUN_ONCE_STATIC_ALT(myaltinitfunc, myinitfunc)
+ * {
+ * do_some_alternative_initialisation();
+ * if (init_is_successful())
+ * return 1;
+ *
+ * return 0;
+ * }
+ */
+#define DEFINE_RUN_ONCE_STATIC_ALT(initalt, init) \
+ static int initalt(void); \
+ static void initalt##_ossl_(void) \
+ { \
+ init##_ossl_ret_ = initalt(); \
+ } \
+ static int initalt(void)
+
+/*
+ * RUN_ONCE - use CRYPTO_THREAD_run_once, and check if the init succeeded
+ * @once: pointer to static object of type CRYPTO_ONCE
+ * @init: function name that was previously given to DEFINE_RUN_ONCE,
+ * DEFINE_RUN_ONCE_STATIC or DECLARE_RUN_ONCE. This function
+ * must return 1 for success or 0 for failure.
+ *
+ * The return value is 1 on success (*) or 0 in case of error.
+ *
+ * (*) by convention, since the init function must return 1 on success.
+ */
+#define RUN_ONCE(once, init) \
+ (CRYPTO_THREAD_run_once(once, init##_ossl_) ? init##_ossl_ret_ : 0)
+
+/*
+ * RUN_ONCE_ALT - use CRYPTO_THREAD_run_once, to run an alternative initialiser
+ * function and check if that initialisation succeeded
+ * @once: pointer to static object of type CRYPTO_ONCE
+ * @initalt: alternative initialiser function name that was previously given to
+ * DEFINE_RUN_ONCE_STATIC_ALT. This function must return 1 for
+ * success or 0 for failure.
+ * @init: primary initialiser function name that was previously given to
+ * DEFINE_RUN_ONCE_STATIC. This function must return 1 for success or
+ * 0 for failure.
+ *
+ * The return value is 1 on success (*) or 0 in case of error.
+ *
+ * (*) by convention, since the init function must return 1 on success.
+ */
+#define RUN_ONCE_ALT(once, initalt, init) \
+ (CRYPTO_THREAD_run_once(once, initalt##_ossl_) ? init##_ossl_ret_ : 0)