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// $Id$
// This test program verifies the functionality of the ACE_OS
// implementation of recursive mutexes on Win32 and Posix pthreads.
#include "ace/OS_main.h"
#include "ace/Service_Config.h"
#include "ace/Thread_Manager.h"
#include "ace/Get_Opt.h"
ACE_RCSID(Threads, recursive_mutex, "$Id$")
#if defined (ACE_HAS_THREADS)
#include "ace/Guard_T.h"
#include "ace/Recursive_Thread_Mutex.h"
// Total number of iterations.
static size_t n_iterations = 1000;
static size_t n_threads = 4;
// Explain usage and exit.
static void
print_usage_and_die (void)
{
ACE_DEBUG ((LM_DEBUG,
"usage: %n [-t n_threads] [-n iteration_count]\n"));
ACE_OS::exit (1);
}
// Parse the command-line arguments and set options.
static void
parse_args (int argc, ACE_TCHAR *argv[])
{
ACE_Get_Opt get_opt (argc, argv, ACE_TEXT("n:t:"));
int c;
while ((c = get_opt ()) != -1)
switch (c)
{
case 'n':
n_iterations = ACE_OS::atoi (get_opt.opt_arg ());
break;
case 't':
n_threads = ACE_OS::atoi (get_opt.opt_arg ());
break;
default:
print_usage_and_die ();
break;
}
}
static void
recursive_worker (size_t nesting_level,
ACE_Recursive_Thread_Mutex *rm)
{
if (nesting_level < n_iterations)
{
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) = trying to acquire, nesting = %d, thread id = %u\n",
rm->get_nesting_level (), rm->get_thread_id ()));
{
// This illustrates the use of the ACE_Guard<LOCK> with an
// ACE_Recursive_Thread_Mutex.
ACE_GUARD (ACE_Recursive_Thread_Mutex, ace_mon, *rm);
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) = acquired, nesting = %d, thread id = %u\n",
rm->get_nesting_level (), rm->get_thread_id ()));
recursive_worker (nesting_level + 1, rm);
}
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) = released, nesting = %d, thread id = %u\n",
rm->get_nesting_level (), rm->get_thread_id ()));
}
}
static void *
worker (void *arg)
{
ACE_Recursive_Thread_Mutex *rm
= (ACE_Recursive_Thread_Mutex *) arg;
recursive_worker (0, rm);
return 0;
}
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
ACE_Service_Config daemon (argv[0]);
parse_args (argc, argv);
ACE_Recursive_Thread_Mutex rm;
ACE_Thread_Manager::instance ()->spawn_n (n_threads,
ACE_THR_FUNC (worker),
(void *) &rm);
ACE_Thread_Manager::instance ()->wait ();
return 0;
}
#else
int
ACE_TMAIN (int, ACE_TCHAR *[])
{
ACE_ERROR_RETURN ((LM_ERROR,
"ACE doesn't support support process mutexes on this platform (yet)\n"),
-1);
}
#endif /* ACE_WIN32 */
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