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/*
flext tutorial - threads 1
Copyright (c) 2002 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
-------------------------------------------------------------------------
This shows an example of a method running as a thread
*/
/* define FLEXT_THREADS for thread usage. Flext must also have been compiled with that defined!
it's even better to define that as a compiler flag (-D FLEXT_THREADS) for all files of the
flext external
*/
#ifndef FLEXT_THREADS
#define FLEXT_THREADS
#endif
#include <flext.h>
#if !defined(FLEXT_VERSION) || (FLEXT_VERSION < 400)
#error You need at least flext version 0.4.0
#endif
class thread1:
public flext_base
{
FLEXT_HEADER(thread1,flext_base)
public:
thread1();
protected:
void m_start(); // method function
private:
// define threaded callback for method m_start (with boolean argument)
// the same syntax as with FLEXT_CALLBACK is used here
FLEXT_THREAD(m_start);
};
FLEXT_NEW("thread1",thread1)
thread1::thread1()
{
AddInAnything();
AddOutInt();
FLEXT_ADDBANG(0,m_start); // register method
}
void thread1::m_start()
{
// Please note that this functions needs about 10 seconds to complete
// Without threads it would block the real-time system
// Okay, that functionality would be far more elegant with timers
// ... but hey, it's a demo!
for(int i = 0; i < 20 && !ShouldExit(); ++i) {
ToOutInt(0,i); // output loop count
// wait for half a second
for(int j = 0; j < 5 && !ShouldExit(); ++j) Sleep(0.1f);
// note: we shall not block a thread for a longer time.
// The system might want to destroy the object in the meantime and
// expects thread termination.
// Flext waits for 1 second by default, then it aborts the thread brutally
}
// output a final zero
ToOutInt(0,0);
}
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