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Viewing changes to common/work_queue_thread/wqt_tester.cpp

  • Committer: fpstovall at gmail
  • Date: 2011-09-04 23:15:58 UTC
  • mfrom: (4.1.45 dev)
  • Revision ID: fpstovall@gmail.com-20110904231558-gb5b1yy3lwoyzxjz
Merged in changes from the cpp_common development branch. The C++ common libs should now be of good enough quality to use for alpha phase development.

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common/work_queue_thread/wqt_tester.cpp
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/* work queue thread test program 
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        TODO: Needs to be adapted to boost::theads.
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*/
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//#include <free_thread.h>
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#include <work_queue_thread.h>
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#include <controlled_wqt.h>
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#include <time.h>
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#include <unistd.h>
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#include <iostream>
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#include <queue>
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using namespace NRTB;
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using namespace std;
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mutex c_lock;
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class worker : public work_queue_thread<int,free_thread>
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{
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        public:
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                worker()
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                {
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                        scope_lock lock(wlock);
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                        iam = count++;
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                        start();
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                        scope_lock clock(c_lock);
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                        cout << "worker " << iam << " started" << std::endl;
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                };
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                ~worker()
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                {
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                        scope_lock lock(c_lock);
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                        cout << "worker " << iam << " is being deleted." << std::endl;
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                };
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        protected:
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                static mutex wlock;
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                static int count;
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                int iam;
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                virtual void do_work()
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                {
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                        if (my_data >= 0)
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                        {
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                                timespec delaytime;
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                                delaytime.tv_sec = 0;
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                                delaytime.tv_nsec = my_data * 1000;
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                                nanosleep(&delaytime,NULL);
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                                {
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                                        scope_lock lock(c_lock);
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                                        cout << "\tworker " << iam 
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                                                << " reports packet " << my_data << std::endl;
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                                }
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                        }
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                        else
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                        {
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                                pthread_exit(0);
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                        };
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                };
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};
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mutex worker::wlock;
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int worker::count = 0;
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class workera : public controlled_work_queue_thread<int,int,free_thread,1>
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{
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        public:
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                workera()
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                {
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                        scope_lock lock(wlock);
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                        iam = count++;
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                        start();
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                        scope_lock clock(c_lock);
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                        cout << "workera " << iam << " started" << std::endl;
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                };
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                ~workera()
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                {
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                        scope_lock lock(c_lock);
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                        cout << "workera " << iam << " is being deleted." << std::endl;
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                };
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        protected:
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                static mutex wlock;
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                static int count;
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                int iam;
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                virtual void do_work()
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                {
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                        timespec delaytime;
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                        delaytime.tv_sec = 0;
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                        delaytime.tv_nsec = my_data * 1000;
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                        nanosleep(&delaytime,NULL);
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                        {
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                                scope_lock lock(c_lock);
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                                cout << "\t\tworkera " << iam 
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                                        << " reports packet " << my_data << std::endl;
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                        }
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                };
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                virtual void do_control()
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                {
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                        switch (my_ctl)
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                        {
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                                case 1: pthread_exit(0); break;
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                                default: 
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                                {
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                                        scope_lock lock(c_lock);
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                                        cout << "\t\t\tworkera " << iam 
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                                                << " received control message " << my_ctl
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                                                << std::endl;
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                                }
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                        };
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                };
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};
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mutex workera::wlock;
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int workera::count = 0;
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int main()
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{
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        // start five workers
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        cout << "*** Starting workers ***" << endl;
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        for (int i=0; i < 5; i++)
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        {
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                new worker;
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                new workera;
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        };
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        cout << "*** sending control message 0 ***" << endl;
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        workera::control(0);
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        cout << "*** queuing 0-9 (0-90) ***" << endl;   
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        for (int i = 0; i < 10; i++) 
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        {
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                worker::store(i);
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                workera::store(i*10);
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        };
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        cout << "*** sending control message 2 ***" << endl;    
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        workera::control(2);
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        cout << "*** sending 10 \"-1\" to workers ***" << endl;
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        for (int i = 0; i < 10; i++) 
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        {
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                worker::store(-1);
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        };
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        cout << "*** two second sleep here ***" << endl;
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        sleep(2);
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        cout << "*** Shutting down CWQ now. ***" << endl;
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        workera::control(1);
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        cout << "*** Starting 10 second sleep ***" << endl;
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        sleep(10);
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        cout << "worker has " << worker::parked() << " parked threads and " 
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                << worker::work_pending() << " elements in the queue." << endl;
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        cout << "workera has " << workera::parked() << " parked threads and " 
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                << workera::work_pending() << " elements in the queue." << endl;
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};