Simple Thread class

gistfile1.cpp

/*
* thread.h
* by Stoned Xander (2011)
*/

#ifndef THREAD_H_
#define THREAD_H_

#ifdef WITH_PTHREAD
#include <pthread.h>
#endif

template<typename D> class Thread {
public:
    /**
      * Constructor.
      * Get the delegate into account.
      */
    Thread(D *d) :
        delegate(d), thread(-1), valid(false) {
    }

    /**
     * Run the thread.
     * @return <code>true</code> if the thread has been successfully launched.
     */
    bool run() {
        if (!valid) {
          // Create it.
#ifdef WITH_PTHREAD
            valid = pthread_create(&thread, NULL, &Thread::adapt, delegate) == 0;
#endif
        }
        return valid;
    }

    /**
     * Wait for the thread to finish.
     */
    void join() {
        if (valid) {
#ifdef WITH_PTHREAD
            pthread_join(thread, NULL);
            valid = false;
#endif
        }
    }

private:
    /**
     * Bridge static method.
     */
    static void *adapt(void *data) {
        D *d = (D *) data
        return d->run();
    }

    /**
     * Delegate object.
     */
    D *delegate;

#ifdef WITH_PTHREAD
    pthread_t thread;
#endif

    bool valid;
};

#endif /* THREAD_H_ */