February 01, 1997
A Polled Timer Class
February 1997/A Polled Timer Class/Listing 1
Listing 1: The Timer class
#ifndef timer_h
# define timer_h
#ifndef boolean
#define boolean int
#define true (1)
#define false (0)
#endif
const int max_timers = 10;
typedef int TIMER_HANDLE;
class TIMER {
public:
int executive_tic(void);
TIMER_HANDLE open_timer(float seconds);
boolean expired(const TIMER_HANDLE &handle);
float time_left(const TIMER_HANDLE &handle);
void close_timer(TIMER_HANDLE &handle);
TIMER(void);
~TIMER(void){}
private:
const int count_mod;
boolean timer_used[max_timers];
boolean timer_expired[max_timers];
int expire_time[max_timers];
int time_count;
long last_bios_time;
TIMER_HANDLE search_next_handle_start;
};
#endif
/* End of File */
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