[PATCH] uml: remove stray file

/* 

 * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)

 * Licensed under the GPL

 */

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <time.h>

#include <sys/time.h>

#include <signal.h>

#include <errno.h>

#include "user_util.h"

#include "kern_util.h"

#include "user.h"

#include "process.h"

#include "time_user.h"

#include "kern_constants.h"

#include "os.h"

/* XXX This really needs to be declared and initialized in a kernel file since

 * it's in <linux/time.h>

 */

extern struct timespec wall_to_monotonic;

extern struct timeval xtime;

struct timeval local_offset = { 0, 0 };

void timer(void)

{

	gettimeofday(&xtime, NULL);

	timeradd(&xtime, &local_offset, &xtime);

}

static void set_interval(int timer_type)

{

	int usec = 1000000/hz();

	struct itimerval interval = ((struct itimerval) { { 0, usec },

							  { 0, usec } });

	if(setitimer(timer_type, &interval, NULL) == -1)

		panic("setitimer failed - errno = %d\n", errno);

}

void enable_timer(void)

{

	set_interval(ITIMER_VIRTUAL);

}

void prepare_timer(void * ptr)

{

	int usec = 1000000/hz();

	*(struct itimerval *)ptr = ((struct itimerval) { { 0, usec },

							 { 0, usec }});

}

void disable_timer(void)

{

	struct itimerval disable = ((struct itimerval) { { 0, 0 }, { 0, 0 }});

	if((setitimer(ITIMER_VIRTUAL, &disable, NULL) < 0) ||

	   (setitimer(ITIMER_REAL, &disable, NULL) < 0))

		printk("disnable_timer - setitimer failed, errno = %d\n",

		       errno);

	/* If there are signals already queued, after unblocking ignore them */

	set_handler(SIGALRM, SIG_IGN, 0, -1);

	set_handler(SIGVTALRM, SIG_IGN, 0, -1);

}

void switch_timers(int to_real)

{

	struct itimerval disable = ((struct itimerval) { { 0, 0 }, { 0, 0 }});

	struct itimerval enable = ((struct itimerval) { { 0, 1000000/hz() },

							{ 0, 1000000/hz() }});

	int old, new;

	if(to_real){

		old = ITIMER_VIRTUAL;

		new = ITIMER_REAL;

	}

	else {

		old = ITIMER_REAL;

		new = ITIMER_VIRTUAL;

	}

	if((setitimer(old, &disable, NULL) < 0) ||

	   (setitimer(new, &enable, NULL)))

		printk("switch_timers - setitimer failed, errno = %d\n",

		       errno);

}

void uml_idle_timer(void)

{

	if(signal(SIGVTALRM, SIG_IGN) == SIG_ERR)

		panic("Couldn't unset SIGVTALRM handler");

	set_handler(SIGALRM, (__sighandler_t) alarm_handler, 

		    SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGVTALRM, -1);

	set_interval(ITIMER_REAL);

}

extern void ktime_get_ts(struct timespec *ts);

#define do_posix_clock_monotonic_gettime(ts) ktime_get_ts(ts)

void time_init(void)

{

	struct timespec now;

	if(signal(SIGVTALRM, boot_timer_handler) == SIG_ERR)

		panic("Couldn't set SIGVTALRM handler");

	set_interval(ITIMER_VIRTUAL);

	do_posix_clock_monotonic_gettime(&now);

	wall_to_monotonic.tv_sec = -now.tv_sec;

	wall_to_monotonic.tv_nsec = -now.tv_nsec;

}

/* Defined in linux/ktimer.h, which can't be included here */

#define clock_was_set()		do { } while (0)

void do_gettimeofday(struct timeval *tv)

{

	unsigned long flags;

	flags = time_lock();

	gettimeofday(tv, NULL);

	timeradd(tv, &local_offset, tv);

	time_unlock(flags);

	clock_was_set();

}

int do_settimeofday(struct timespec *tv)

{

	struct timeval now;

	unsigned long flags;

	struct timeval tv_in;

	if ((unsigned long) tv->tv_nsec >= UM_NSEC_PER_SEC)

		return -EINVAL;

	tv_in.tv_sec = tv->tv_sec;

	tv_in.tv_usec = tv->tv_nsec / 1000;

	flags = time_lock();

	gettimeofday(&now, NULL);

	timersub(&tv_in, &now, &local_offset);

	time_unlock(flags);

	return(0);

}

void idle_sleep(int secs)

{

	struct timespec ts;

	ts.tv_sec = secs;

	ts.tv_nsec = 0;

	nanosleep(&ts, NULL);

}

/* XXX This partly duplicates init_irq_signals */

void user_time_init(void)

{

	set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,

		    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,

		    SIGALRM, SIGUSR2, -1);

	set_handler(SIGALRM, (__sighandler_t) alarm_handler,

		    SA_ONSTACK | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH,

		    SIGVTALRM, SIGUSR2, -1);

	set_interval(ITIMER_VIRTUAL);

}