// Copyright (C) 2006 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#include <sstream>
#include <string>
#include <cstdlib>
#include <ctime>
#include <dlib/misc_api.h>
#include <dlib/threads.h>
#include "tester.h"
namespace
{
using namespace test;
using namespace dlib;
using namespace std;
logger dlog("test.threads");
void test_async()
{
#if __cplusplus >= 201103
print_spinner();
auto v1 = dlib::async([]() { dlib::sleep(500); return 1; }).share();
auto v2 = dlib::async([v1]() { dlib::sleep(400); return v1.get()+1; }).share();
auto v3 = dlib::async([v2](int a) { dlib::sleep(300); return v2.get()+a; },2).share();
auto v4 = dlib::async([v3]() { dlib::sleep(200); return v3.get()+1; });
DLIB_TEST(v4.get() == 5);
print_spinner();
auto except = dlib::async([](){ dlib::sleep(300); throw error("oops"); });
bool got_exception = false;
try
{
except.get();
}
catch (error&e)
{
got_exception = true;
DLIB_TEST(e.what() == string("oops"));
}
DLIB_TEST(got_exception);
#endif
}
class threads_tester : public tester
{
public:
threads_tester (
) :
tester ("test_threads",
"Runs tests on the threads component."),
sm(cm)
{}
thread_specific_data<int> tsd;
rmutex cm;
rsignaler sm;
int count;
bool failure;
void perform_test (
)
{
failure = false;
print_spinner();
count = 10;
if (!create_new_thread<threads_tester,&threads_tester::thread1>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread2>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread3>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread4>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread5>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread6>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread7>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread8>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread9>(*this)) failure = true;
if (!create_new_thread<threads_tester,&threads_tester::thread10>(*this)) failure = true;
thread(66);
// this should happen in the main program thread
if (is_dlib_thread())
failure = true;
auto_mutex M(cm);
while (count > 0 && !failure)
sm.wait();
DLIB_TEST(!failure);
test_async();
}
void thread_end_handler (
)
{
auto_mutex M(cm);
--count;
if (count == 0)
sm.signal();
}
void thread1() { thread(1); }
void thread2()
{
thread(2);
if (is_dlib_thread() == false)
failure = true;
}
void thread3() { thread(3); }
void thread4() { thread(4); }
void thread5() { thread(5); }
void thread6() { thread(6); }
void thread7() { thread(7); }
void thread8() { thread(8); }
void thread9() { thread(9); }
void thread10() { thread(10); }
void thread (
int num
)
{
dlog << LTRACE << "starting thread num " << num;
if (is_dlib_thread())
register_thread_end_handler(*this,&threads_tester::thread_end_handler);
tsd.data() = num;
for (int i = 0; i < 0x3FFFF; ++i)
{
if ((i&0xFFF) == 0)
{
print_spinner();
dlib::sleep(10);
}
// if this isn't equal to num then there is a problem with the thread specific data stuff
if (tsd.data() != num)
{
auto_mutex M(cm);
failure = true;
sm.signal();
}
}
dlog << LTRACE << "ending of thread num " << num;
}
} a;
}