pintos-doxygen/html/timer_8h_source.html

#ifndef DEVICES_TIMER_H

#define DEVICES_TIMER_H


#include <round.h>

#include <stdint.h>


/** Number of timer interrupts per second. */

#define TIMER_FREQ 100


void timer_init (void);

void timer_calibrate (void);


int64_t timer_ticks (void);

int64_t timer_elapsed (int64_t);


/** Sleep and yield the CPU to other threads. */

void timer_sleep (int64_t ticks);

void timer_msleep (int64_t milliseconds);

void timer_usleep (int64_t microseconds);

void timer_nsleep (int64_t nanoseconds);


/** Busy waits. */

void timer_mdelay (int64_t milliseconds);

void timer_udelay (int64_t microseconds);

void timer_ndelay (int64_t nanoseconds);


void timer_print_stats (void);


#endif /**< devices/timer.h */

round.h

stdint.h

int64_t
signed long long int int64_t
Definition: stdint.h:16

ticks
static int64_t ticks
See [8254] for hardware details of the 8254 timer chip.
Definition: timer.c:21

timer_udelay
void timer_udelay(int64_t microseconds)
Sleeps for approximately US microseconds.
Definition: timer.c:144

timer_elapsed
int64_t timer_elapsed(int64_t)
Returns the number of timer ticks elapsed since THEN, which should be a value once returned by timer_...
Definition: timer.c:82

timer_ticks
int64_t timer_ticks(void)
Returns the number of timer ticks since the OS booted.
Definition: timer.c:71

timer_ndelay
void timer_ndelay(int64_t nanoseconds)
Sleeps execution for approximately NS nanoseconds.
Definition: timer.c:157

timer_print_stats
void timer_print_stats(void)
devices/timer.h
Definition: timer.c:164

timer_mdelay
void timer_mdelay(int64_t milliseconds)
Busy waits.
Definition: timer.c:131

timer_init
void timer_init(void)
Sets up the timer to interrupt TIMER_FREQ times per second, and registers the corresponding interrupt...
Definition: timer.c:36

timer_calibrate
void timer_calibrate(void)
Calibrates loops_per_tick, used to implement brief delays.
Definition: timer.c:44

timer_msleep
void timer_msleep(int64_t milliseconds)
Sleeps for approximately MS milliseconds.
Definition: timer.c:102

timer_sleep
void timer_sleep(int64_t ticks)
Sleep and yield the CPU to other threads.
Definition: timer.c:90

timer_usleep
void timer_usleep(int64_t microseconds)
Sleeps for approximately US microseconds.
Definition: timer.c:110

timer_nsleep
void timer_nsleep(int64_t nanoseconds)
Sleeps for approximately NS nanoseconds.
Definition: timer.c:118