intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 210 insertions, 0 deletions

diff --git a/contrib/libs/openssl/crypto/threads_pthread.c b/contrib/libs/openssl/crypto/threads_pthread.c
new file mode 100644
index 0000000000..cca17aa406
--- /dev/null
+++ b/contrib/libs/openssl/crypto/threads_pthread.c
@@ -0,0 +1,210 @@
+/*
+ * Copyright 2016-2019 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>
+#include "internal/cryptlib.h"
+
+#if defined(OPENSSL_THREADS) && !defined(CRYPTO_TDEBUG) && !defined(OPENSSL_SYS_WINDOWS)
+
+# if defined(OPENSSL_SYS_UNIX)
+#  include <sys/types.h>
+#  include <unistd.h>
+#endif
+
+# ifdef PTHREAD_RWLOCK_INITIALIZER
+#  define USE_RWLOCK
+# endif
+
+CRYPTO_RWLOCK *CRYPTO_THREAD_lock_new(void)
+{
+# ifdef USE_RWLOCK
+    CRYPTO_RWLOCK *lock;
+
+    if ((lock = OPENSSL_zalloc(sizeof(pthread_rwlock_t))) == NULL) {
+        /* Don't set error, to avoid recursion blowup. */
+        return NULL;
+    }
+
+    if (pthread_rwlock_init(lock, NULL) != 0) {
+        OPENSSL_free(lock);
+        return NULL;
+    }
+# else
+    pthread_mutexattr_t attr;
+    CRYPTO_RWLOCK *lock;
+
+    if ((lock = OPENSSL_zalloc(sizeof(pthread_mutex_t))) == NULL) {
+        /* Don't set error, to avoid recursion blowup. */
+        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)
+    _Static_assert(__atomic_is_lock_free(sizeof(*val), val), "'int' should be a lock free atomic type");
+    *ret = __atomic_add_fetch(val, amount, __ATOMIC_ACQ_REL);
+    return 1;
+# else
+#   error "Should not be here. Do not need locks to work with an 'int' value atomically."
+# endif
+
+#if 0
+    if (!CRYPTO_THREAD_write_lock(lock))
+        return 0;
+
+    *val += amount;
+    *ret  = *val;
+
+    if (!CRYPTO_THREAD_unlock(lock))
+        return 0;
+
+    return 1;
+#endif
+}
+
+# ifdef OPENSSL_SYS_UNIX
+static pthread_once_t fork_once_control = PTHREAD_ONCE_INIT;
+
+static void fork_once_func(void)
+{
+    pthread_atfork(OPENSSL_fork_prepare,
+                   OPENSSL_fork_parent, OPENSSL_fork_child);
+}
+# endif
+
+int openssl_init_fork_handlers(void)
+{
+# ifdef OPENSSL_SYS_UNIX
+    if (pthread_once(&fork_once_control, fork_once_func) == 0)
+        return 1;
+# endif
+    return 0;
+}
+
+int openssl_get_fork_id(void)
+{
+    return getpid();
+}
+#endif