321f34979c
After updating libc++, they're no longer declared in cxxabi.h, so the
test must declare them locally.
8bd0dc5bfe
Temporarily use a return type of "int" to avoid a Clang error about
conflicting return types.
Bug: http://b/175635923
Test: treehugger
Change-Id: I16ba3dc8cc84cc18ee7fbfe9d2e3fa0cd4eefeae
88 lines
3 KiB
C++
88 lines
3 KiB
C++
/*
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* Copyright (C) 2020 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <gtest/gtest.h>
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extern "C" {
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int __cxa_atexit(void (*func)(void*), void* arg, void* dso);
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// TODO(b/175635923). __cxa_finalize's return type should actually be "void",
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// but it is declared "int" here instead to be compatible with the declaration
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// in an old version of cxxabi.h, which is included indirectly. The declarations
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// of __cxa_atexit and __cxa_finalize are removed from newer versions of
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// cxxabi.h, so once libc++ is updated, this return type should be changed to
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// "void".
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int __cxa_finalize(void* dso);
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}
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TEST(__cxa_atexit, simple) {
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int counter = 0;
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__cxa_atexit([](void* arg) { ++*static_cast<int*>(arg); }, &counter, &counter);
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__cxa_finalize(&counter);
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ASSERT_EQ(counter, 1);
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// The handler won't be called twice.
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__cxa_finalize(&counter);
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ASSERT_EQ(counter, 1);
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}
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TEST(__cxa_atexit, order) {
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static std::vector<int> actual;
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char handles[2];
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auto append_to_actual = [](void* arg) {
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int* idx = static_cast<int*>(arg);
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actual.push_back(*idx);
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delete idx;
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};
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for (int i = 0; i < 500; ++i) {
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__cxa_atexit(append_to_actual, new int{i}, &handles[i % 2]);
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}
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__cxa_finalize(&handles[0]);
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for (int i = 500; i < 750; ++i) {
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__cxa_atexit(append_to_actual, new int{i}, &handles[1]);
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}
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__cxa_finalize(&handles[1]);
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std::vector<int> expected;
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for (int i = 498; i >= 0; i -= 2) expected.push_back(i);
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for (int i = 749; i >= 500; --i) expected.push_back(i);
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for (int i = 499; i >= 1; i -= 2) expected.push_back(i);
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ASSERT_EQ(expected.size(), actual.size());
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for (size_t i = 0; i < expected.size(); ++i) {
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ASSERT_EQ(expected[i], actual[i]) << "index=" << i;
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}
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}
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