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// $Id$
// ============================================================================
//
// = LIBRARY
// tests
//
// = FILENAME
// Process_Manager_Test.cpp
//
// = DESCRIPTION
// This program tests the various methods provided by
// <ACE_Process_Manager>. It illustrates both the explicit <wait>
// functions and the Reactor-style auto-reaping. There's an
// Exit_Handler class that can print out (in Debug mode) when a
// child has been reaped.
//
// The child processes spawned are simply this program itself, with
// an integer argument specifying how long to "process" (actually,
// the child just sleeps for the specified length of time).
//
// = AUTHOR
// Douglas C. Schmidt <schmidt@cs.wustl.edu> and
// Dave Madden <dhm@mersenne.com>
//
// ============================================================================
#include "test_config.h"
#include "ace/Process_Manager.h"
#include "ace/Get_Opt.h"
ACE_RCSID(tests, Process_Manager_Test, "Process_Manager_Test.cpp,v 4.11 1999/09/02 04:36:30 schmidt Exp")
#if (!defined (ACE_LACKS_FORK) || defined (ACE_WIN32)) && defined (ACE_HAS_THREADS)
static u_int debug_test = 0;
class Exit_Handler : public ACE_Event_Handler
{
public:
Exit_Handler (const char *msg): msg_ (msg) { }
virtual ~Exit_Handler (void) { }
virtual int handle_close (ACE_HANDLE, ACE_Reactor_Mask)
{
delete this;
return 0;
}
virtual int handle_exit (ACE_Process *proc)
{
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) Exit_Handler(%s) got %d: %d\n"),
msg_,
int (proc->getpid ()),
int (proc->exit_code ()) ));
return 0;
}
private:
const char *msg_;
};
static void
usage (const ACE_TCHAR *argv0)
{
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("usage: %s [-d] [sleep-seconds]\n"),
argv0));
ACE_OS::exit (0);
}
static pid_t
spawn_child (const ACE_TCHAR *argv0,
ACE_Process_Manager &mgr,
int sleep_time = 0)
{
ACE_Process_Options opts;
opts.command_line (ACE_TEXT("%s %s %d"),
argv0,
debug_test ? ACE_TEXT ("-d") : ACE_TEXT (""),
sleep_time);
pid_t result = mgr.spawn (opts);
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) spawned child: %d\n"),
int (result)));
return result;
}
int
main (int argc, ACE_TCHAR *argv[])
{
ACE_Get_Opt args (argc, argv, ACE_TEXT ("d"));
for (int arg = args (); arg != EOF; arg = args ())
switch (arg)
{
case 'd':
debug_test = 1u;
break;
default:
usage (argv[0]);
break;
}
if (args.opt_ind () == argc - 1)
{ // child process: sleep & exit
int secs = ACE_OS::atoi (argv[args.opt_ind ()]);
ACE_OS::sleep (secs ? secs : 1);
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) about to exit with code %d\n"),
secs));
return secs;
}
if (args.opt_ind () != argc) // incorrect usage
usage (argv[0]);
ACE_START_TEST (ACE_TEXT ("Process_Manager_Test"));
// Try the explicit <ACE_Process_Manager::wait> functions
int result = 0;
ACE_Process_Manager mgr;
mgr.register_handler (new Exit_Handler ("default"));
ACE_exitcode exitcode;
// --------------------------------------------------
// wait for a specific PID
pid_t child1 = spawn_child (argv[0],
mgr,
1);
pid_t result1 = mgr.wait (child1,
&exitcode);
ACE_ASSERT (result1 == child1);
// ACE_ASSERT (exitcode == 1);
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) waited for child %d: %d\n"),
child1,
exitcode));
// --------------------------------------------------
// wait for a specific PID; another should finish first
pid_t child2 = spawn_child (argv[0],
mgr,
1);
pid_t child3 = spawn_child (argv[0],
mgr,
4);
pid_t result2 = mgr.wait (child3,
&exitcode);
ACE_ASSERT (result2 == child3);
// ACE_ASSERT (exitcode == 4);
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) waited for child %d: %d\n"),
child3,
exitcode));
// Now wait for any...should get the one that finished earlier.
pid_t result3 = mgr.wait (0,
&exitcode);
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) expected to reap %d, got %d\n"),
child2,
result3));
ACE_ASSERT (result3 == child2);
// ACE_ASSERT (exitcode == 1);
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) waited for any child: %d\n"),
exitcode));
// --------------------------------------------------
// Try the timed wait functions
// This one shouldn't timeout:
pid_t child4 = spawn_child (argv[0],
mgr,
1);
pid_t result4 = mgr.wait (0,
ACE_Time_Value (4),
&exitcode);
ACE_ASSERT (result4 == child4);
// ACE_ASSERT (exitcode == 1);
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) waited for any child: %d\n"),
exitcode));
// This one should timeout:
pid_t child5 = spawn_child (argv[0],
mgr,
4);
pid_t result5 = mgr.wait (0,
ACE_Time_Value (1),
&exitcode);
ACE_ASSERT (result5 == 0); // should have timed out
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) waited for any child: %d\n"),
exitcode));
// Now wait indefinitely to clean up...
result5 = mgr.wait (0,
&exitcode);
ACE_ASSERT (result5 == child5);
// ACE_ASSERT (exitcode == 4);
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) waited for child 5 again: %d\n"),
exitcode));
// --------------------------------------------------
// Finally, try the reactor stuff...
mgr.open (ACE_Process_Manager::DEFAULT_SIZE,
ACE_Reactor::instance ());
pid_t child6 = spawn_child (argv[0],
mgr,
5);
/* pid_t child7 = */ spawn_child (argv[0],
mgr,
6);
mgr.register_handler (new Exit_Handler ("specific"),
child6);
ACE_Time_Value how_long (10);
ACE_Reactor::instance ()->run_event_loop (how_long);
if (debug_test)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%P|%t) done!\n") ));
ACE_END_TEST;
return result;
}
#else /* (!ACE_LACKS_FORK || ACE_WIN32) && ACE_HAS_THREADS */
int
main (int, ACE_TCHAR *[])
{
ACE_START_TEST (ACE_TEXT ("Process_Manager_Test"));
ACE_ERROR ((LM_ERROR,
ACE_TEXT ("The ACE Process Manager is not supported on this platform\n")));
ACE_END_TEST;
return 0;
}
#endif /* (!ACE_LACKS_FORK || ACE_WIN32) && ACE_HAS_THREADS */
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