From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>
Date: Fri, 30 Apr 2021 00:33:56 +0200
Subject: initial/final commit

---
 openssl-1.1.0h/crypto/threads_pthread.c | 171 ++++++++++++++++++++++++++++++++
 1 file changed, 171 insertions(+)
 create mode 100644 openssl-1.1.0h/crypto/threads_pthread.c

(limited to 'openssl-1.1.0h/crypto/threads_pthread.c')

diff --git a/openssl-1.1.0h/crypto/threads_pthread.c b/openssl-1.1.0h/crypto/threads_pthread.c
new file mode 100644
index 0000000..151013e
--- /dev/null
+++ b/openssl-1.1.0h/crypto/threads_pthread.c
@@ -0,0 +1,171 @@
+/*
+ * Copyright 2016 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>
+
+#if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG) && !defined(OPENSSL_SYS_WINDOWS)
+
+# ifdef PTHREAD_RWLOCK_INITIALIZER
+#  define USE_RWLOCK
+# endif
+
+CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
+{
+# ifdef USE_RWLOCK
+    CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(pthread_rwlock_t));
+    if (lock == NULL)
+        return NULL;
+
+    if (pthread_rwlock_init(lock, NULL) != 0) {
+        OPENSSL_free(lock);
+        return NULL;
+    }
+# else
+    pthread_mutexattr_t attr;
+    CRYPTO_RWLOCK *lock = OPENSSL_zalloc(sizeof(pthread_mutex_t));
+    if (lock == NULL)
+        return NULL;
+
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+
+    if (pthread_mutex_init(lock, &attr) != 0) {
+        pthread_mutexattr_destroy(&attr);
+        OPENSSL_free(lock);
+        return NULL;
+    }
+
+    pthread_mutexattr_destroy(&attr);
+# endif
+
+    return lock;
+}
+
+int CRYPTO_THREAD_read_lock(CRYPTO_RWLOCK *lock)
+{
+# ifdef USE_RWLOCK
+    if (pthread_rwlock_rdlock(lock) != 0)
+        return 0;
+# else
+    if (pthread_mutex_lock(lock) != 0)
+        return 0;
+# endif
+
+    return 1;
+}
+
+int CRYPTO_THREAD_write_lock(CRYPTO_RWLOCK *lock)
+{
+# ifdef USE_RWLOCK
+    if (pthread_rwlock_wrlock(lock) != 0)
+        return 0;
+# else
+    if (pthread_mutex_lock(lock) != 0)
+        return 0;
+# endif
+
+    return 1;
+}
+
+int CRYPTO_THREAD_unlock(CRYPTO_RWLOCK *lock)
+{
+# ifdef USE_RWLOCK
+    if (pthread_rwlock_unlock(lock) != 0)
+        return 0;
+# else
+    if (pthread_mutex_unlock(lock) != 0)
+        return 0;
+# endif
+
+    return 1;
+}
+
+void CRYPTO_THREAD_lock_free(CRYPTO_RWLOCK *lock)
+{
+    if (lock == NULL)
+        return;
+
+# ifdef USE_RWLOCK
+    pthread_rwlock_destroy(lock);
+# else
+    pthread_mutex_destroy(lock);
+# endif
+    OPENSSL_free(lock);
+
+    return;
+}
+
+int CRYPTO_THREAD_run_once(CRYPTO_ONCE *once, void (*init)(void))
+{
+    if (pthread_once(once, init) != 0)
+        return 0;
+
+    return 1;
+}
+
+int CRYPTO_THREAD_init_local(CRYPTO_THREAD_LOCAL *key, void (*cleanup)(void *))
+{
+    if (pthread_key_create(key, cleanup) != 0)
+        return 0;
+
+    return 1;
+}
+
+void *CRYPTO_THREAD_get_local(CRYPTO_THREAD_LOCAL *key)
+{
+    return pthread_getspecific(*key);
+}
+
+int CRYPTO_THREAD_set_local(CRYPTO_THREAD_LOCAL *key, void *val)
+{
+    if (pthread_setspecific(*key, val) != 0)
+        return 0;
+
+    return 1;
+}
+
+int CRYPTO_THREAD_cleanup_local(CRYPTO_THREAD_LOCAL *key)
+{
+    if (pthread_key_delete(*key) != 0)
+        return 0;
+
+    return 1;
+}
+
+CRYPTO_THREAD_ID CRYPTO_THREAD_get_current_id(void)
+{
+    return pthread_self();
+}
+
+int CRYPTO_THREAD_compare_id(CRYPTO_THREAD_ID a, CRYPTO_THREAD_ID b)
+{
+    return pthread_equal(a, b);
+}
+
+int CRYPTO_atomic_add(int *val, int amount, int *ret, CRYPTO_RWLOCK *lock)
+{
+# if defined(__GNUC__) && defined(__ATOMIC_ACQ_REL)
+    if (__atomic_is_lock_free(sizeof(*val), val)) {
+        *ret = __atomic_add_fetch(val, amount, __ATOMIC_ACQ_REL);
+        return 1;
+    }
+# endif
+    if (!CRYPTO_THREAD_write_lock(lock))
+        return 0;
+
+    *val += amount;
+    *ret  = *val;
+
+    if (!CRYPTO_THREAD_unlock(lock))
+        return 0;
+
+    return 1;
+}
+
+#endif
-- 
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