demo_thread.cpp

一个不错

/* Copyright is licensed under GNU LGPL.                 by I.J.Wang 2003

   Build: make demo_thread
*/
#include "../src/wy_thread.h"
#include "../src/wytimespec.h"
#include "../src/wy_uty.h"

   // Class Thread inherits Wy_Thread, is a simple thread object for demo.
   //
   class Thread : public Wy_Thread {
       WyTimeSpec dtime;     // delay time

     public:
       Thread() : dtime("1.5") /*1.5 seconds*/ {};
       ~Thread() throw() {
         tmain_close();      // stop a possibly active thread
       };

     protected:
       WyRet tmain(void) {   // reimplement the default tmain()
         // loop 5 times: sleep and print 'Z'
         for(int i=0; i<5; ++i) {
           Wy::sleep(dtime);
           Wy::cerr << 'Z';
         }
         return(Ok);
       };
   };

   int main(void)
   try {
     WyRet r;
     Thread thrd;               // declare a Thread object

     // begin a new thread to run thrd.tmain()
     if((r=thrd.begin())!=Ok) {
       WY_THROW(r);
     }

     // wait until thread state is not Active
     if((r=thrd.wait_not(Wy_Thread::Active))!=Ok) {
       WY_THROW(r);                                 
     }
     return(0);
   }
   catch(const WyRet& e) {
     Wy::cerr << Wy::wrd(e) << '\n';
     throw;
   }
   catch(...) {
     Wy::cerr << "Unidentified throw object\n";
     throw;
   };