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/*-
* Copyright (c) 2016 Mahdi Mokhtari <mokhi64@gmail.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <dlfcn.h>
#include <atf-c++.hpp>
#include <cstdio>
#include <cstdlib>
#include <thread>
static FILE *output = NULL;
struct Foo {
Foo() { ATF_REQUIRE(fprintf(output, "Created\n") > 0); }
~Foo() { ATF_REQUIRE(fprintf(output, "Destroyed\n") > 0); }
void use() { ATF_REQUIRE(fprintf(output, "Used\n") > 0); }
};
struct Bar {
Bar() {}
~Bar() {
thread_local static Foo foo;
ATF_REQUIRE(fprintf(output, "DIED\n") > 0);
}
void use() {}
};
extern "C" int __cxa_thread_atexit(void (*)(void *), void *, void *);
static void
again(void *arg)
{
__cxa_thread_atexit(again, arg, &output);
}
struct Baz {
Baz() {}
~Baz() {
again(NULL);
}
void use() {}
};
static thread_local Foo f;
static thread_local Foo g;
static thread_local Bar h;
static thread_local Baz e;
/*
* This test must be linked to libpthread.
*/
ATF_TEST_CASE_WITHOUT_HEAD(cxx__thr);
ATF_TEST_CASE_BODY(cxx__thr)
{
void *libthr_handle;
/* Avoid coredump during f construction. */
output = stderr;
libthr_handle = dlopen("libthr.so.3", RTLD_LAZY | RTLD_GLOBAL |
RTLD_NOLOAD);
ATF_REQUIRE(libthr_handle != NULL);
dlclose(libthr_handle);
}
/*
* In this test f.use() will test cxa_thread_atexit() in non-threaded mode.
* After f.use() main will be threaded and we'll have one additional thread
* with its own TLS data.
*/
ATF_TEST_CASE_WITHOUT_HEAD(cxx__thread_local_before);
ATF_TEST_CASE_BODY(cxx__thread_local_before)
{
static const char out_log[] = "Created\nCreated\nUsed\nCreated\n"
"Created\nUsed\nCreated\nDIED\nDestroyed\nDestroyed\nDestroyed\n";
ATF_REQUIRE((output = fopen("test_before.txt", "w")) != NULL);
f.use();
std::thread t([]() { f.use(); });
t.join();
fflush(output);
ATF_REQUIRE(atf::utils::compare_file("test_before.txt", out_log));
}
/*
* In this test, f.use() will test __cxa_thread_atexit()
* in threaded mode (but still in main-threaed).
*/
ATF_TEST_CASE_WITHOUT_HEAD(cxx__thread_local_after);
ATF_TEST_CASE_BODY(cxx__thread_local_after)
{
static const char out_log[] = "Created\nCreated\nUsed\nCreated\n"
"DIED\nDestroyed\nDestroyed\nDestroyed\nCreated\nCreated\nUsed\n";
ATF_REQUIRE((output = fopen("test_after.txt", "w")) != NULL);
std::thread t([]() { g.use(); });
t.join();
sleep(1);
g.use();
fflush(output);
ATF_REQUIRE(atf::utils::compare_file("test_after.txt", out_log));
}
/*
* In this test, we register a new dtor while dtors are being run
* in __cxa_thread_atexit().
*/
ATF_TEST_CASE_WITHOUT_HEAD(cxx__thread_local_add_while_calling_dtors);
ATF_TEST_CASE_BODY(cxx__thread_local_add_while_calling_dtors)
{
static const char out_log[] = "Created\nCreated\nCreated\nDIED\n"
"Destroyed\nDestroyed\nDestroyed\n";
ATF_REQUIRE((output = fopen("test_add_meanwhile.txt", "w")) != NULL);
std::thread t([]() { h.use(); });
t.join();
sleep(1);
fflush(output);
ATF_REQUIRE(atf::utils::compare_file("test_add_meanwhile.txt", out_log));
}
ATF_TEST_CASE_WITHOUT_HEAD(cxx__thread_inf_dtors);
ATF_TEST_CASE_BODY(cxx__thread_inf_dtors)
{
/*
* Only added to make isolated run of this test not
* coredumping. Construction of Foo objects require filled
* output.
*/
output = stderr;
std::thread t([]() { e.use(); });
t.join();
}
ATF_INIT_TEST_CASES(tcs)
{
ATF_ADD_TEST_CASE(tcs, cxx__thr);
ATF_ADD_TEST_CASE(tcs, cxx__thread_local_before);
ATF_ADD_TEST_CASE(tcs, cxx__thread_local_after);
ATF_ADD_TEST_CASE(tcs, cxx__thread_local_add_while_calling_dtors);
ATF_ADD_TEST_CASE(tcs, cxx__thread_inf_dtors);
}
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