clock.h

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#ifndef _CLOCK_H_
#define _CLOCK_H_

#include <types.h>
#include <ksyscall.h>

#define CLOCKS_PER_SEC 1000 
#define USEC_PER_SEC 1000000 
struct timeval {
        long int tv_sec; 
        long int tv_usec; 
};

struct timespec {
        long int tv_sec; 
        long int tv_nsec; 
};

struct tm {
        int tm_sec;   
        int tm_min;   
        int tm_hour;  
        int tm_mday;  
        int tm_mon;   
        int tm_year;  
        int tm_wday;  
        int tm_yday;  
        int tm_isdst; 
};

typedef long int time_t;
typedef long int clock_t;

int compare_times(struct timeval a, struct timeval b);

void clock_init();

void clock_tick();

clock_t get_clock();

SYSCALL_HANDLER1(sys_getclock, clock_t* clock);

time_t get_date();

SYSCALL_HANDLER1(sys_getdate, time_t* date);

void timeval_add_usec(struct timeval *t, time_t usec); 

struct timeval get_tv();

time_t clock_mktime(struct tm *timep);

void klog_systime();

#endif