consumer.c

多线程库

#define __THREADS_MAIN
#include <thread.h>

#include <string>

extern "C" {

#  include <unistd.h>

};

cond t_control;
mutex t_link;
string s;

class producer : public pthread {
public:
  producer() { };
  ~producer() { };

  int thread(void *)
    {
      char *buf = new char[80];

      cout << "Enter text for consumer: ";
      cout.flush();
      cin.getline(buf,80);
      t_link.lock();
      s = buf;
      t_control.signal();
      t_link.unlock();
      delete buf;
      return 0;
    }
};

class consumer : public pthread {
public:
  consumer() { };
  ~consumer() { };

  int thread(void *)
    {
      int r;

      t_link.lock();
      t_control.wait(t_link);
      cout << "Consumed: '" << s << "'\n";
      r = s.length();
      t_link.unlock();
      return r;
    }
};

void
hexdump(const unsigned char *ptr, int len)
{
  string s;
  int i = 0;

  while(i < len) {
    if( (i%16) == 0 ) {
      if ( i > 0 )
	cout << " ;" << s.c_str() << endl;
      cout.form("%08X ",(int)ptr);
      s = "";
    }
    cout.form(" %02X",(unsigned int)ptr[i]);
    if ( isprint(ptr[i]) )
      s += ptr[i];
    else
      s += '.';
    i += 1;
  }
  while( (i%16) )
    cout << "   ",i++;
  cout << " ;" << s.c_str() << endl;
}

int main()
{
  pthread *p1, *p2;

  p1 = new consumer;
  p2 = new producer;
  p1->join();
  cout << "return value " << p1->retcode() << endl;
}