mirror of
https://github.com/vacp2p/boringssl.git
synced 2026-08-27 11:41:09 +00:00
Rudolf Polzer
f7543e6dbb
Down from 65 to 3 unintended exported symbols. The remaining 3 are weak symbols to override the malloc implementation and might be acceptable (and if not, they probably will be prefixed like public symbols instead): extern "C" function OPENSSL_memory_alloc; // crypto/mem.cc:103 (4077-4093) size extern "C" function OPENSSL_memory_free; // crypto/mem.cc:104 (4139-4155) ptr extern "C" function OPENSSL_memory_get_size; // crypto/mem.cc:105 (4196-4212) ptr This has been confirmed acceptable, and is likely required by existing code bases linking to BoringSSL. Bug: 42220000 Change-Id: I5c7be4e12ef0aa09691e0bc938bfc6c76a6a6964 Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/86669 Reviewed-by: Xiangfei Ding <xfding@google.com> Commit-Queue: Rudolf Polzer <rpolzer@google.com>
86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
// Copyright 2015 The BoringSSL Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "internal.h"
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#include <gtest/gtest.h>
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#if defined(OPENSSL_THREADS)
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#include <thread>
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#endif
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BSSL_NAMESPACE_BEGIN
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namespace {
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TEST(RefCountTest, Basic) {
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CRYPTO_refcount_t count = 0;
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CRYPTO_refcount_inc(&count);
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EXPECT_EQ(1u, count.load());
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EXPECT_TRUE(CRYPTO_refcount_dec_and_test_zero(&count));
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EXPECT_EQ(0u, count.load());
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count = CRYPTO_REFCOUNT_MAX;
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CRYPTO_refcount_inc(&count);
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EXPECT_EQ(CRYPTO_REFCOUNT_MAX, count.load())
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<< "Count did not saturate correctly when incrementing.";
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EXPECT_FALSE(CRYPTO_refcount_dec_and_test_zero(&count));
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EXPECT_EQ(CRYPTO_REFCOUNT_MAX, count.load())
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<< "Count did not saturate correctly when decrementing.";
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count = 2;
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EXPECT_FALSE(CRYPTO_refcount_dec_and_test_zero(&count));
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EXPECT_EQ(1u, count.load());
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}
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#if defined(OPENSSL_THREADS)
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// This test is primarily intended to run under ThreadSanitizer.
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TEST(RefCountTest, Threads) {
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CRYPTO_refcount_t count = 0;
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// Race two increments.
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{
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std::thread thread([&] { CRYPTO_refcount_inc(&count); });
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CRYPTO_refcount_inc(&count);
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thread.join();
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EXPECT_EQ(2u, count.load());
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}
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// Race an increment with a decrement.
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{
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std::thread thread([&] { CRYPTO_refcount_inc(&count); });
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EXPECT_FALSE(CRYPTO_refcount_dec_and_test_zero(&count));
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thread.join();
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EXPECT_EQ(2u, count.load());
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}
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// Race two decrements.
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{
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bool thread_saw_zero;
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std::thread thread(
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[&] { thread_saw_zero = CRYPTO_refcount_dec_and_test_zero(&count); });
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bool saw_zero = CRYPTO_refcount_dec_and_test_zero(&count);
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thread.join();
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EXPECT_EQ(0u, count.load());
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// Exactly one thread should see zero.
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EXPECT_NE(saw_zero, thread_saw_zero);
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}
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}
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#endif
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} // namespace
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BSSL_NAMESPACE_END
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