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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <dlfcn.h>
#include <libgen.h>
#include <limits.h>
#include <stdio.h>
#include <stdint.h>
#include <string>
TEST(atexit, dlclose) {
std::string atexit_call_sequence;
bool valid_this_in_static_dtor = false;
void* handle = dlopen("libtest_atexit.so", RTLD_NOW);
ASSERT_TRUE(handle != NULL);
void* sym = dlsym(handle, "register_atexit");
ASSERT_TRUE(sym != NULL);
reinterpret_cast<void (*)(std::string*, bool*)>(sym)(&atexit_call_sequence, &valid_this_in_static_dtor);
ASSERT_EQ(0, dlclose(handle));
// this test verifies atexit call from atexit handler. as well as the order of calls
ASSERT_EQ("Humpty Dumpty sat on a wall", atexit_call_sequence);
ASSERT_TRUE(valid_this_in_static_dtor);
}
class TestMainStaticDtorClass {
public:
TestMainStaticDtorClass() {
expected_this = this;
}
~TestMainStaticDtorClass() {
if (this != expected_this) {
fprintf(stderr, "\nerror: static d-tor called with incorrect this pointer: %p, expected: %p\n", this, expected_this);
} else {
fprintf(stderr, "6");
}
}
private:
static const TestMainStaticDtorClass* expected_this;
};
const TestMainStaticDtorClass* TestMainStaticDtorClass::expected_this = NULL;
static void atexit_func5() {
fprintf(stderr, "5");
}
static void atexit_func4() {
fprintf(stderr, "4");
}
static void atexit_func3() {
fprintf(stderr, "3");
atexit(atexit_func4);
}
static void atexit_func2() {
fprintf(stderr, "2");
}
static void atexit_func1() {
fprintf(stderr, "1");
}
static void atexit_main() {
// This should result in "123456" output to stderr
static TestMainStaticDtorClass static_obj;
atexit(atexit_func5);
atexit(atexit_func3);
atexit(atexit_func2);
atexit(atexit_func1);
exit(0);
}
TEST(atexit, exit) {
ASSERT_EXIT(atexit_main(), testing::ExitedWithCode(0), "123456");
}
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