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// $Id$
// ============================================================================
//
// = LIBRARY
// examples
//
// = FILENAME
// invariant.cpp
//
// = DESCRIPTION
//
// = AUTHOR
// Tim Harrison
//
// ============================================================================
#include "ace/Get_Opt.h"
#include "ace/Singleton.h"
#include "ace/Thread_Manager.h"
#include "ace/Token_Invariants.h"
#if defined (ACE_HAS_THREADS) && defined (ACE_HAS_THREADS_LIBRARY)
ACE_RCSID(invariant, invariant, "$Id$")
typedef ACE_Token_Invariant_Manager ACE_TOKEN_INVARIANTS;
static const char *rwname = "reader/writer";
static const char *mutexname = "mutex";
static void *
run_reader_writer (void *)
{
for (int x = 0; x < 50; x++)
{
int y = 0;
for (; y < 5; y++)
{
if (ACE_TOKEN_INVARIANTS::instance ()->reader_acquired (rwname) == 0)
ACE_ERROR_RETURN ((LM_ERROR, "reader acquire violated invariant.\n"), 0);
ACE_DEBUG ((LM_DEBUG, "(%t) rlock acquired.\n"));
}
ACE_TOKEN_INVARIANTS::instance ()->rwlock_releasing (rwname);
if (ACE_TOKEN_INVARIANTS::instance ()->reader_acquired (rwname) == 0)
ACE_ERROR_RETURN ((LM_ERROR, "reader renew violated invariant.\n"), 0);
ACE_DEBUG ((LM_DEBUG, "(%t) rlock renewed.\n"));
for (; y > 0; y--)
{
ACE_TOKEN_INVARIANTS::instance ()->rwlock_releasing (rwname);
ACE_DEBUG ((LM_DEBUG, "(%t) r-released.\n"));
}
if (ACE_TOKEN_INVARIANTS::instance ()->writer_acquired (rwname) == 0)
ACE_ERROR_RETURN ((LM_ERROR, "writer acquire violated invariant.\n"), 0);
ACE_DEBUG ((LM_DEBUG, "\t\t(%t) wlock acquired.\n"));
ACE_TOKEN_INVARIANTS::instance ()->rwlock_releasing (rwname);
if (ACE_TOKEN_INVARIANTS::instance ()->writer_acquired (rwname) == 0)
ACE_ERROR_RETURN ((LM_ERROR, "writer renew violated invariant.\n"), 0);
ACE_DEBUG ((LM_DEBUG, "(%t) rlock renewed.\n"));
ACE_TOKEN_INVARIANTS::instance ()->rwlock_releasing (rwname);
}
ACE_DEBUG ((LM_DEBUG, "(%t) thread exiting.\n"));
return 0;
}
static void *
run_mutex (void *)
{
for (int x = 0; x < 50; x++)
{
if (ACE_TOKEN_INVARIANTS::instance ()->mutex_acquired (mutexname) == 0)
ACE_ERROR_RETURN ((LM_ERROR, "mutex acquire violated invariant.\n"), 0);
ACE_DEBUG ((LM_DEBUG, "(%t) mutex acquired.\n"));
ACE_TOKEN_INVARIANTS::instance ()->mutex_releasing (mutexname);
if (ACE_TOKEN_INVARIANTS::instance ()->mutex_acquired (mutexname) == 0)
ACE_ERROR_RETURN ((LM_ERROR, "mutex renew violated invariant.\n"), 0);
ACE_DEBUG ((LM_DEBUG, "(%t) mutex renewed.\n"));
ACE_TOKEN_INVARIANTS::instance ()->mutex_releasing (mutexname);
ACE_DEBUG ((LM_DEBUG, "(%t) mutex released.\n"));
}
ACE_DEBUG ((LM_DEBUG, "(%t) thread exiting.\n"));
return 0;
}
static int
run_final_test (void)
{
ACE_DEBUG ((LM_DEBUG, "starting mutex tests 1 & 2\n"));
// Mutex tests.
if (ACE_TOKEN_INVARIANTS::instance ()->mutex_acquired ("testing mutex") == 0)
ACE_ERROR_RETURN ((LM_ERROR, "mutex test 1 failed.\n"), 0);
if (ACE_TOKEN_INVARIANTS::instance ()->mutex_acquired ("testing mutex2") == 0)
ACE_ERROR_RETURN ((LM_ERROR, "mutex test 2 failed.\n"), 0);
if (ACE_TOKEN_INVARIANTS::instance ()->mutex_acquired ("testing mutex") == 0)
ACE_DEBUG ((LM_DEBUG, "mutex test 1 succeeded.\n"));
else
ACE_ERROR_RETURN ((LM_ERROR, "mutex test 1 failed..\n"), 0);
if (ACE_TOKEN_INVARIANTS::instance ()->mutex_acquired ("testing mutex2") == 0)
ACE_DEBUG ((LM_DEBUG, "mutex test 2 succeeded.\n"));
else
ACE_ERROR_RETURN ((LM_ERROR, "mutex test 2 failed..\n"), 0);
// RW tests.
ACE_DEBUG ((LM_DEBUG, "starting rwlock tests 1 & 2\n"));
// Multiple readers.
if (ACE_TOKEN_INVARIANTS::instance ()->reader_acquired ("testing rwlock") == 0)
ACE_ERROR_RETURN ((LM_ERROR, "rwlock test 1 failed.\n"), 0);
if (ACE_TOKEN_INVARIANTS::instance ()->reader_acquired ("testing rwlock 2") == 0)
ACE_ERROR_RETURN ((LM_ERROR, "rwlock test 2 failed.\n"), 0);
if (ACE_TOKEN_INVARIANTS::instance ()->reader_acquired ("testing rwlock") == 0)
ACE_ERROR_RETURN ((LM_ERROR, "rwlock test 1 failed..\n"), 0);
if (ACE_TOKEN_INVARIANTS::instance ()->reader_acquired ("testing rwlock 2") == 0)
ACE_ERROR_RETURN ((LM_ERROR, "rwlock test 2 failed..\n"), 0);
// Writer.
if (ACE_TOKEN_INVARIANTS::instance ()->writer_acquired ("testing rwlock") == 0)
ACE_DEBUG ((LM_ERROR, "rwlock test 1 succeded.\n"));
else
ACE_ERROR_RETURN ((LM_ERROR, "rwlock test 1 failed...\n"), 0);
// Releasing reader.
ACE_TOKEN_INVARIANTS::instance ()->rwlock_releasing ("testing rwlock 2");
ACE_TOKEN_INVARIANTS::instance ()->rwlock_releasing ("testing rwlock 2");
// Writer.
if (ACE_TOKEN_INVARIANTS::instance ()->writer_acquired ("testing rwlock 2") == 0)
ACE_ERROR_RETURN ((LM_ERROR, "rwlock test 2 failed....\n"), 0);
// Reader.
if (ACE_TOKEN_INVARIANTS::instance ()->reader_acquired ("testing rwlock 2") == 0)
ACE_DEBUG ((LM_DEBUG, "rwlock test 2 succeeded.\n"));
else
ACE_ERROR_RETURN ((LM_ERROR, "rwlock test 2 failed.....\n"), 0);
return 0;
}
int
main (int /* argc */, char* /* argv */ [])
{
ACE_Thread_Manager mgr;
// Run reader/writer test
if (mgr.spawn_n (2, ACE_THR_FUNC (run_reader_writer),
(void *) 0,
THR_NEW_LWP | THR_DETACHED) == -1)
ACE_ERROR_RETURN ((LM_DEBUG, "%p\n", "spawn failed"), -1);
mgr.wait ();
ACE_OS::sleep (2);
// Run mutex test.
if (mgr.spawn_n (2, ACE_THR_FUNC (run_mutex),
(void *) 0,
THR_NEW_LWP | THR_DETACHED) == -1)
ACE_ERROR_RETURN ((LM_DEBUG, "%p\n", "spawn failed"), -1);
mgr.wait ();
ACE_OS::sleep (2);
run_final_test ();
return 0;
}
#else
int
main (int, char *[])
{
ACE_ERROR_RETURN ((LM_ERROR,
"threads not supported on this platform\n"), -1);
}
#endif /* ACE_HAS_THREADS */
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