LUMIERA.clone/tests/library/thread-local-test.cpp
Ichthyostega ada5cefaaf re-arrange tests according to layer structure
the buildsystem will now pick up and link
all test cases according to the layer, e.g.
backend tests will automatically be linked
against the backend + library solely.
2013-01-07 05:43:01 +01:00

113 lines
2.7 KiB
C++

/*
ThreadLocal(Test) - verify wrapper for using thread-local data
Copyright (C) Lumiera.org
2011, Hermann Vosseler <Ichthyostega@web.de>
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
* *****************************************************/
#include "lib/test/run.hpp"
#include "backend/thread-wrapper.hpp"
#include "lib/thread-local.hpp"
#include <cstdlib>
using test::Test;
using backend::ThreadJoinable;
using std::rand;
namespace lib {
namespace test{
namespace { // private test setup...
const uint NUM_THREADS = 50;
const uint MAX_RAND = 5*1000*1000;
/** Subject of the test */
ThreadLocalPtr<uint> privateValue;
struct TestThread
: ThreadJoinable
{
TestThread()
: ThreadJoinable("test Thread-local storage"
,verifyThreadLocal)
{ }
/** the actual test operation running in a separate thread */
static void
verifyThreadLocal()
{
uint secret (1 + rand() % MAX_RAND);
privateValue.set (&secret);
usleep (secret); // sleep for a random period
if (secret != *privateValue)
throw error::Fatal ("thread-local value access broken");
}
};
} // (End) test setup....
/**************************************************************************
* @test use a wrapper to simplify handling of thread-local data.
* Create some threads, each referring to another piece of data
* through the "same" wrapper instance.
*
* @see backend::Thread
* @see lib::ThreadLocal
*/
class ThreadLocal_test : public Test
{
virtual void
run (Arg)
{
TestThread testcase[NUM_THREADS] SIDEEFFECT;
for (uint i=0; i < NUM_THREADS; ++i)
CHECK (testcase[i].join().isValid() );
}
};
/** Register this test class... */
LAUNCHER (ThreadLocal_test, "function common");
}} // namespace backend::test