83 lines
3.2 KiB
C++
83 lines
3.2 KiB
C++
/*
|
|
* Copyright (C) 2015 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>
|
|
|
|
static int g_atfork_prepare_calls = 0;
|
|
static void AtForkPrepare1() { g_atfork_prepare_calls = (g_atfork_prepare_calls * 10) + 1; }
|
|
static void AtForkPrepare2() { g_atfork_prepare_calls = (g_atfork_prepare_calls * 10) + 2; }
|
|
static void AtForkPrepare3() { g_atfork_prepare_calls = (g_atfork_prepare_calls * 10) + 3; }
|
|
static void AtForkPrepare4() { g_atfork_prepare_calls = (g_atfork_prepare_calls * 10) + 4; }
|
|
|
|
static int g_atfork_parent_calls = 0;
|
|
static void AtForkParent1() { g_atfork_parent_calls = (g_atfork_parent_calls * 10) + 1; }
|
|
static void AtForkParent2() { g_atfork_parent_calls = (g_atfork_parent_calls * 10) + 2; }
|
|
static void AtForkParent3() { g_atfork_parent_calls = (g_atfork_parent_calls * 10) + 3; }
|
|
static void AtForkParent4() { g_atfork_parent_calls = (g_atfork_parent_calls * 10) + 4; }
|
|
|
|
static int g_atfork_child_calls = 0;
|
|
static void AtForkChild1() { g_atfork_child_calls = (g_atfork_child_calls * 10) + 1; }
|
|
static void AtForkChild2() { g_atfork_child_calls = (g_atfork_child_calls * 10) + 2; }
|
|
static void AtForkChild3() { g_atfork_child_calls = (g_atfork_child_calls * 10) + 3; }
|
|
static void AtForkChild4() { g_atfork_child_calls = (g_atfork_child_calls * 10) + 4; }
|
|
|
|
TEST(pthread, pthread_atfork_with_dlclose) {
|
|
ASSERT_EQ(0, pthread_atfork(AtForkPrepare1, AtForkParent1, AtForkChild1));
|
|
|
|
void* handle = dlopen("libtest_pthread_atfork.so", RTLD_NOW | RTLD_LOCAL);
|
|
ASSERT_TRUE(handle != nullptr) << dlerror();
|
|
typedef int (*fn_t)(void (*)(void), void (*)(void), void (*)(void));
|
|
fn_t fn = reinterpret_cast<fn_t>(dlsym(handle, "proxy_pthread_atfork"));
|
|
ASSERT_TRUE(fn != nullptr) << dlerror();
|
|
// the library registers 2 additional atfork handlers in a constructor
|
|
ASSERT_EQ(0, fn(AtForkPrepare2, AtForkParent2, AtForkChild2));
|
|
ASSERT_EQ(0, fn(AtForkPrepare3, AtForkParent3, AtForkChild3));
|
|
|
|
ASSERT_EQ(0, pthread_atfork(AtForkPrepare4, AtForkParent4, AtForkChild4));
|
|
|
|
int pid = fork();
|
|
|
|
ASSERT_NE(-1, pid) << strerror(errno);
|
|
|
|
if (pid == 0) {
|
|
ASSERT_EQ(1234, g_atfork_child_calls);
|
|
_exit(0);
|
|
}
|
|
|
|
ASSERT_EQ(1234, g_atfork_parent_calls);
|
|
ASSERT_EQ(4321, g_atfork_prepare_calls);
|
|
|
|
EXPECT_EQ(0, dlclose(handle));
|
|
g_atfork_prepare_calls = g_atfork_parent_calls = g_atfork_child_calls = 0;
|
|
|
|
int status;
|
|
ASSERT_EQ(pid, waitpid(pid, &status, 0));
|
|
|
|
pid = fork();
|
|
|
|
ASSERT_NE(-1, pid) << strerror(errno);
|
|
|
|
if (pid == 0) {
|
|
ASSERT_EQ(14, g_atfork_child_calls);
|
|
_exit(0);
|
|
}
|
|
|
|
ASSERT_EQ(14, g_atfork_parent_calls);
|
|
ASSERT_EQ(41, g_atfork_prepare_calls);
|
|
|
|
ASSERT_EQ(pid, waitpid(pid, &status, 0));
|
|
}
|