mirror of
https://github.com/DrKLO/Telegram.git
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133 lines
4.2 KiB
C++
133 lines
4.2 KiB
C++
/* Copyright (c) 2015, Google Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
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#include "internal.h"
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#include <chrono>
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#include <thread>
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#include <gtest/gtest.h>
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#include <openssl/crypto.h>
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#include <openssl/rand.h>
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#include "test/test_util.h"
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#if defined(OPENSSL_THREADS)
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static unsigned g_once_init_called = 0;
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static void once_init(void) {
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g_once_init_called++;
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// Sleep briefly so one |call_once_func| instance will call |CRYPTO_once|
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// while the other is running this function.
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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}
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static CRYPTO_once_t g_test_once = CRYPTO_ONCE_INIT;
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TEST(ThreadTest, Once) {
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ASSERT_EQ(0u, g_once_init_called)
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<< "g_once_init_called was non-zero at start.";
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auto call_once_func = [] { CRYPTO_once(&g_test_once, once_init); };
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std::thread thread1(call_once_func), thread2(call_once_func);
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thread1.join();
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thread2.join();
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CRYPTO_once(&g_test_once, once_init);
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EXPECT_EQ(1u, g_once_init_called);
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}
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static CRYPTO_once_t once_init_value = CRYPTO_ONCE_INIT;
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static CRYPTO_once_t once_bss;
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static struct CRYPTO_STATIC_MUTEX mutex_init_value = CRYPTO_STATIC_MUTEX_INIT;
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static struct CRYPTO_STATIC_MUTEX mutex_bss;
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static CRYPTO_EX_DATA_CLASS ex_data_class_value = CRYPTO_EX_DATA_CLASS_INIT;
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static CRYPTO_EX_DATA_CLASS ex_data_class_bss;
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TEST(ThreadTest, InitZeros) {
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if (FIPS_mode()) {
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// Our FIPS tooling currently requires that |CRYPTO_ONCE_INIT|,
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// |CRYPTO_STATIC_MUTEX_INIT| and |CRYPTO_EX_DATA_CLASS| are all zeros and
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// so can be placed in the BSS section.
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EXPECT_EQ(Bytes((uint8_t *)&once_bss, sizeof(once_bss)),
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Bytes((uint8_t *)&once_init_value, sizeof(once_init_value)));
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EXPECT_EQ(Bytes((uint8_t *)&mutex_bss, sizeof(mutex_bss)),
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Bytes((uint8_t *)&mutex_init_value, sizeof(mutex_init_value)));
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EXPECT_EQ(
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Bytes((uint8_t *)&ex_data_class_bss, sizeof(ex_data_class_bss)),
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Bytes((uint8_t *)&ex_data_class_value, sizeof(ex_data_class_value)));
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}
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}
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static int g_test_thread_ok = 0;
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static unsigned g_destructor_called_count = 0;
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static void thread_local_destructor(void *arg) {
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if (arg == NULL) {
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return;
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}
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unsigned *count = reinterpret_cast<unsigned*>(arg);
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(*count)++;
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}
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TEST(ThreadTest, ThreadLocal) {
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ASSERT_EQ(nullptr, CRYPTO_get_thread_local(OPENSSL_THREAD_LOCAL_TEST))
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<< "Thread-local data was non-NULL at start.";
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std::thread thread([] {
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if (CRYPTO_get_thread_local(OPENSSL_THREAD_LOCAL_TEST) != NULL ||
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!CRYPTO_set_thread_local(OPENSSL_THREAD_LOCAL_TEST,
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&g_destructor_called_count,
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thread_local_destructor) ||
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CRYPTO_get_thread_local(OPENSSL_THREAD_LOCAL_TEST) !=
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&g_destructor_called_count) {
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return;
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}
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g_test_thread_ok = 1;
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});
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thread.join();
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EXPECT_TRUE(g_test_thread_ok) << "Thread-local data didn't work in thread.";
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EXPECT_EQ(1u, g_destructor_called_count);
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// Create a no-op thread to test that the thread destructor function works
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// even if thread-local storage wasn't used for a thread.
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thread = std::thread([] {});
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thread.join();
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}
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TEST(ThreadTest, RandState) {
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// In FIPS mode, rand.c maintains a linked-list of thread-local data because
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// we're required to clear it on process exit. This test exercises removing a
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// value from that list.
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uint8_t buf[1];
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RAND_bytes(buf, sizeof(buf));
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std::thread thread([] {
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uint8_t buf2[1];
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RAND_bytes(buf2, sizeof(buf2));
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});
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thread.join();
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}
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#endif // OPENSSL_THREADS
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