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-// $Id$
-
-// The following test was written by Hamutal Yanay & Ari Erev's
-// (Ari_Erev@comverse.com).
-//
-// This test program test enhancements to the thread_manager and task
-// classes. The purpose of these enhancements was to allow the
-// thread_manager to recognize the concept of an ACE_Task and to be
-// able to group ACE_Tasks in groups.
-//
-// There are two main ACE_Tasks in this sample:
-//
-// Invoker_Task - is run from main (). It's purpose is to run a number of
-// ACE_Tasks of type Worker_Task. The number can be specified
-// on the command line.
-// After starting the tasks, the Invoker_Task groups all the tasks
-// in one group and then uses the
-// num_tasks_in_group () to find out if the real number of tasks
-// that are now running (should be the same as the number of tasks
-// started).
-// It also, suspends and resumes all the threads in the group to
-// test the suspend_grp () and resume_grp () methods.
-// Then it waits for all the tasks to end.
-// Worker_Task - ACE_Tasks that are started by the Invoker_Task.
-// Each Worker_Task can start a number of threads.
-// The Worker_Task threads perform some work (iteration). The number
-// of the iterations can be specified on the command line.
-//
-// The command line syntax is:
-//
-// test_task [num_tasks] [num_threads] [num_iterations]
-
-#include "ace/Task.h"
-#include "ace/Service_Config.h"
-
-
-#if defined (ACE_HAS_THREADS)
-
-#include "ace/Task.h"
-
-class Invoker_Task : public ACE_Task<ACE_MT_SYNCH>
-{
-public:
- Invoker_Task (ACE_Thread_Manager *thr_mgr,
- int n_tasks,
- int n_threads,
- int n_iterations);
- virtual int svc (void);
- // creats <n_tasks> and wait for them to finish
-
-private:
- int n_tasks_;
- // Number of tasks to start.
- int n_threads_;
- // Number of threads per task.
- int n_iterations_;
- // Number of iterations per thread.
-
- // = Not needed for this test.
- virtual int open (void *) { return 0; }
- virtual int close (u_long) { return 0; }
- virtual int put (ACE_Message_Block *, ACE_Time_Value *) { return 0; }
-};
-
-class Worker_Task : public ACE_Task<ACE_MT_SYNCH>
-{
-public:
- Worker_Task (ACE_Thread_Manager *thr_mgr,
- int n_threads,
- int n_iterations);
- virtual int svc (void);
- // Does a small work...
- virtual int open (void * = NULL);
-private:
- static int workers_count_;
- int index_;
- int n_threads_;
- int n_iterations_;
-
- // = Not needed for this test.
- virtual int close (u_long) { return 0; }
- virtual int put (ACE_Message_Block *, ACE_Time_Value *) { return 0; }
-};
-
-int Worker_Task::workers_count_ = 1;
-
-Worker_Task::Worker_Task (ACE_Thread_Manager *thr_mgr,
- int n_threads,
- int n_iterations)
- : n_threads_ (n_threads),
- n_iterations_ (n_iterations),
- ACE_Task<ACE_MT_SYNCH> (thr_mgr)
-{
- index_ = workers_count_++;
-}
-
-int
-Worker_Task::open (void *)
-{
- // Create worker threads.
- int rc = this->activate (THR_NEW_LWP, n_threads_, 0, 0, -1, this);
-
- if (rc == -1)
- ACE_ERROR ((LM_ERROR, "%p\n", "activate failed"));
-
- return rc;
-}
-
-int
-Worker_Task::svc (void)
-{
- ACE_DEBUG ((LM_DEBUG, " (%t) in worker %d\n", index_));
-
- for (int iterations = 1;
- iterations <= this->n_iterations_;
- iterations++)
- {
- ACE_DEBUG ((LM_DEBUG, " (%t) in iteration %d\n", iterations));
- ACE_OS::sleep (0);
- }
-
- ACE_DEBUG ((LM_DEBUG, " (%t) worker %d ends\n", index_));
-
- return 0;
-}
-
-Invoker_Task::Invoker_Task (ACE_Thread_Manager *thr_mgr,
- int n_tasks,
- int n_threads,
- int n_iterations)
- : n_tasks_ (n_tasks),
- n_threads_ (n_threads),
- n_iterations_ (n_iterations),
- ACE_Task<ACE_MT_SYNCH> (thr_mgr)
-{
- // Create worker threads.
- if (this->activate (THR_NEW_LWP, 1, 0, 0, -1, this) == -1)
- ACE_ERROR ((LM_ERROR, "%p\n", "activate failed"));
-}
-
-// Iterate <n_iterations> time printing off a message and "waiting"
-// for all other threads to complete this iteration.
-
-int
-Invoker_Task::svc (void)
-{
- // Note that the ACE_Task::svc_run () method automatically adds us to
- // the Thread_Manager when the thread begins.
-
- ACE_Thread_Manager *thr_mgr = ACE_Service_Config::thr_mgr ();
- Worker_Task **pTask = new Worker_Task* [n_tasks_];
-
- for (int task = 0;
- task < this->n_tasks_;
- task++)
- {
- ACE_DEBUG ((LM_DEBUG, " (%t) in task %d\n", task+1));
- pTask[task] = new Worker_Task (thr_mgr, n_threads_, n_iterations_);
- pTask[task]->open ();
- }
-
- // Set all tasks to be one group
- ACE_DEBUG ((LM_DEBUG, " (%t) setting tasks group id\n"));
- for (task = 0;
- task < this->n_tasks_;
- task++)
- if (thr_mgr->set_grp (pTask[task], 1) == -1)
- ACE_ERROR ((LM_DEBUG, " (%t) %p\n", "set_grp"));
-
- int nTasks = thr_mgr->num_tasks_in_group (1);
- cout << "Number of tasks in group 1: " << nTasks << endl;
-
- // Wait for 1 second and then suspend every thread in the group.
- ACE_OS::sleep (1);
- ACE_DEBUG ((LM_DEBUG, " (%t) suspending group\n"));
- if (thr_mgr->suspend_grp (1) == -1)
- ACE_ERROR ((LM_DEBUG, " (%t) %p\n", "suspend_grp"));
-
- // Wait for 5 more second and then resume every thread in the
- // group.
- ACE_OS::sleep (ACE_Time_Value (5));
-
- // @QTSK This ACE_DEBUG statement blows us away! can't understand why
- ACE_DEBUG ((LM_DEBUG, " (%t) resuming group\n"));
- if (thr_mgr->resume_grp (1) == -1)
- ACE_ERROR ((LM_DEBUG, " (%t) %p\n", "resume_grp"));
-
-
- // Wait for all the tasks to reach their exit point.
- thr_mgr->wait ();
-
- // Note that the ACE_Task::svc_run () method automatically removes us
- // from the Thread_Manager when the thread exits.
-
- return 0;
-}
-
-// Default number of tasks and iterations.
-static const int DEFAULT_TASKS = 4;
-static const int DEFAULT_ITERATIONS = 5;
-
-int
-main (int argc, char *argv[])
-{
- int n_tasks = argc > 1 ? ACE_OS::atoi (argv[1]) : DEFAULT_TASKS;
- int n_threads = argc > 2 ? ACE_OS::atoi (argv[2]) : ACE_DEFAULT_THREADS;
- int n_iterations = argc > 3 ? ACE_OS::atoi (argv[3]) : DEFAULT_ITERATIONS;
-
- // Since ACE_Thread_Manager can only wait for all threads, we'll have
- // special manager for the Invoker_Task.
- ACE_Thread_Manager invoker_manager;
-
- Invoker_Task invoker (&invoker_manager,
- n_tasks,
- n_threads,
- n_iterations);
-
- // Wait for 1 second and then suspend the invoker task
- ACE_OS::sleep (1);
- ACE_DEBUG ((LM_DEBUG, " (%t) suspending invoker task\n"));
-
- if (invoker_manager.suspend_task (&invoker) == -1)
- ACE_ERROR ((LM_DEBUG, " (%t) %p\n", "suspend_task"));
-
- // Wait for 5 more second and then resume the invoker task.
- ACE_OS::sleep (ACE_Time_Value (5));
-
- // @QTSK This ACE_DEBUG statement blows us away! can't understand why
- ACE_DEBUG ((LM_DEBUG, " (%t) resuming invoker task\n"));
- if (invoker_manager.resume_task (&invoker) == -1)
- ACE_ERROR ((LM_DEBUG, " (%t) %p\n", "resume_task"));
-
-
- // Wait for all the threads to reach their exit point.
- invoker_manager.wait ();
-
- // @QTSK This ACE_DEBUG statement blows us away! can't understand why
- ACE_DEBUG ((LM_DEBUG, " (%t) done\n"));
- return 0;
-}
-#else
-int
-main (int, char *[])
-{
- ACE_ERROR ((LM_ERROR, "threads not supported on this platform\n"));
- return 0;
-}
-#endif /* ACE_HAS_THREADS */