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// $Id$
#include "ace/Log_Msg.h"
#include "ace/Process_Manager.h"
#include "ace/Reactor.h"
static const int NCHILDREN = 2;
// Listing 1 code/ch10
class DeathHandler: public ACE_Event_Handler
{
public:
DeathHandler () : count_(0)
{
ACE_TRACE (ACE_TEXT ("DeathHandler::DeathHandler"));
}
virtual int handle_exit (ACE_Process * process)
{
ACE_TRACE (ACE_TEXT ("DeathHandler::handle_exit"));
ACE_DEBUG
((LM_DEBUG,
ACE_TEXT ("Process %d exited with exit code %d\n"),
process->getpid (), process->return_value ()));
if (++count_ == NCHILDREN)
ACE_Reactor::instance ()->end_reactor_event_loop ();
return 0;
}
private:
int count_;
};
// Listing 1
// Listing 0 code/ch10
int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
if (argc > 1) // Running as a child.
return 0;
// Instantiate a process manager with space for
// 10 processes.
ACE_Process_Manager pm (10, ACE_Reactor::instance ());
// Create a process termination handler.
DeathHandler handler;
// Specify the options for the new processes to be spawned.
ACE_Process_Options options;
options.command_line (ACE_TEXT ("%s a"), argv[0]);
// Spawn two child processes.
pid_t pids[NCHILDREN];
pm.spawn_n (NCHILDREN, options, pids);
// Register handler to be called when these processes exit.
for (int i = 0; i < NCHILDREN; i++)
pm.register_handler (&handler, pids[i]);
// Run the reactor event loop waiting for events to occur.
ACE_Reactor::instance ()->run_reactor_event_loop ();
return 0;
}
// Listing 0
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