[p5sagit/p5-mst-13.2.git] / ext / Time / HiRes / HiRes.xs

#ifdef __cplusplus
extern "C" {
#endif
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#ifdef WIN32
#include <time.h>
#else
#include <sys/time.h>
#endif
#ifdef __cplusplus
}
#endif

static IV
constant(char *name, int arg)
{
    errno = 0;
    switch (*name) {
    case 'I':
      if (strEQ(name, "ITIMER_REAL"))
#ifdef ITIMER_REAL
	return ITIMER_REAL;
#else
	goto not_there;
#endif
      if (strEQ(name, "ITIMER_REALPROF"))
#ifdef ITIMER_REALPROF
	return ITIMER_REALPROF;
#else
	goto not_there;
#endif
      if (strEQ(name, "ITIMER_VIRTUAL"))
#ifdef ITIMER_VIRTUAL
	return ITIMER_VIRTUAL;
#else
	goto not_there;
#endif
      if (strEQ(name, "ITIMER_PROF"))
#ifdef ITIMER_PROF
	return ITIMER_PROF;
#else
	goto not_there;
#endif
      break;
    }
    errno = EINVAL;
    return 0;

not_there:
    errno = ENOENT;
    return 0;
}

#if !defined(HAS_GETTIMEOFDAY) && defined(WIN32)
#define HAS_GETTIMEOFDAY

/* shows up in winsock.h?
struct timeval {
 long tv_sec;
 long tv_usec;
}
*/

int
gettimeofday (struct timeval *tp, int nothing)
{
 SYSTEMTIME st;
 time_t tt;
 struct tm tmtm;
 /* mktime converts local to UTC */
 GetLocalTime (&st);
 tmtm.tm_sec = st.wSecond;
 tmtm.tm_min = st.wMinute;
 tmtm.tm_hour = st.wHour;
 tmtm.tm_mday = st.wDay;
 tmtm.tm_mon = st.wMonth - 1;
 tmtm.tm_year = st.wYear - 1900;
 tmtm.tm_isdst = -1;
 tt = mktime (&tmtm);
 tp->tv_sec = tt;
 tp->tv_usec = st.wMilliseconds * 1000;
 return 0;
}
#endif

#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
#define HAS_GETTIMEOFDAY

#include <time.h> /* gettimeofday */
#include <stdlib.h> /* qdiv */
#include <starlet.h> /* sys$gettim */
#include <descrip.h>
#ifdef __VAX
#include <lib$routines.h> /* lib$ediv() */
#endif

/*
        VMS binary time is expressed in 100 nano-seconds since
        system base time which is 17-NOV-1858 00:00:00.00
*/

#define DIV_100NS_TO_SECS  10000000L
#define DIV_100NS_TO_USECS 10L

/* 
        gettimeofday is supposed to return times since the epoch
        so need to determine this in terms of VMS base time
*/
static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");

#ifdef __VAX
static long base_adjust[2]={0L,0L};
#else
static __int64 base_adjust=0;
#endif

int
gettimeofday (struct timeval *tp, void *tpz)
{
 long ret;
#ifdef __VAX
 long quad[2];
 long quad1[2];
 long div_100ns_to_secs;
 long div_100ns_to_usecs;
 long quo,rem;
 long quo1,rem1;
#else
 __int64 quad;
 __qdiv_t ans1,ans2;
#endif
/*
        In case of error, tv_usec = 0 and tv_sec = VMS condition code.
        The return from function is also set to -1.
        This is not exactly as per the manual page.
*/

 tp->tv_usec = 0;

#ifdef __VAX
 if (base_adjust[0]==0 && base_adjust[1]==0) {
#else
 if (base_adjust==0) { /* Need to determine epoch adjustment */
#endif
        ret=sys$bintim(&dscepoch,&base_adjust);
        if (1 != (ret &&1)) {
                tp->tv_sec = ret;
                return -1;
        }
 }

 ret=sys$gettim(&quad); /* Get VMS system time */
 if ((1 && ret) == 1) {
#ifdef __VAX
        quad[0] -= base_adjust[0]; /* convert to epoch offset */
        quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
        div_100ns_to_secs = DIV_100NS_TO_SECS;
        div_100ns_to_usecs = DIV_100NS_TO_USECS;
        lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
        quad1[0] = rem;
        quad1[1] = 0L;
        lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
        tp->tv_sec = quo; /* Whole seconds */
        tp->tv_usec = quo1; /* Micro-seconds */
#else
        quad -= base_adjust; /* convert to epoch offset */
        ans1=qdiv(quad,DIV_100NS_TO_SECS);
        ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
        tp->tv_sec = ans1.quot; /* Whole seconds */
        tp->tv_usec = ans2.quot; /* Micro-seconds */
#endif
 } else {
        tp->tv_sec = ret;
        return -1;
 }
 return 0;
}
#endif

#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
#ifndef SELECT_IS_BROKEN
#define HAS_USLEEP
#define usleep hrt_usleep  /* could conflict with ncurses for static build */

void
hrt_usleep(unsigned long usec)
{
    struct timeval tv;
    tv.tv_sec = 0;
    tv.tv_usec = usec;
    select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
		(Select_fd_set_t)NULL, &tv);
}
#endif
#endif

#if !defined(HAS_USLEEP) && defined(WIN32)
#define HAS_USLEEP
#define usleep hrt_usleep  /* could conflict with ncurses for static build */

void
hrt_usleep(unsigned long usec)
{
    long msec;
    msec = usec / 1000;
    Sleep (msec);
}
#endif


#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
#define HAS_UALARM
#define ualarm hrt_ualarm  /* could conflict with ncurses for static build */

int
hrt_ualarm(int usec, int interval)
{
   struct itimerval itv;
   itv.it_value.tv_sec = usec / 1000000;
   itv.it_value.tv_usec = usec % 1000000;
   itv.it_interval.tv_sec = interval / 1000000;
   itv.it_interval.tv_usec = interval % 1000000;
   return setitimer(ITIMER_REAL, &itv, 0);
}
#endif

#ifdef HAS_GETTIMEOFDAY

static int
myU2time(UV *ret)
{
  struct timeval Tp;
  int status;
  status = gettimeofday (&Tp, NULL);
  ret[0] = Tp.tv_sec;
  ret[1] = Tp.tv_usec;
  return status;
}

static NV
myNVtime()
{
  struct timeval Tp;
  int status;
  status = gettimeofday (&Tp, NULL);
  return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
}

#endif

MODULE = Time::HiRes            PACKAGE = Time::HiRes

PROTOTYPES: ENABLE

BOOT:
#ifdef HAS_GETTIMEOFDAY
{
  UV auv[2];
  hv_store(PL_modglobal, "Time::NVtime", 12, newSViv((IV) myNVtime()), 0);
  if (myU2time(auv) == 0)
    hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) auv[0]), 0);
}
#endif

IV
constant(name, arg)
	char *		name
	int		arg

#ifdef HAS_USLEEP

void
usleep(useconds)
        int useconds 

void
sleep(...)
	PROTOTYPE: ;$
	CODE:
	if (items > 0)
	    usleep((int)(SvNV(ST(0)) * 1000000));
	else
	    PerlProc_pause();

#endif

#ifdef HAS_UALARM

int
ualarm(useconds,interval=0)
	int useconds
	int interval

int
alarm(fseconds,finterval=0)
	NV fseconds
	NV finterval
	PREINIT:
	int useconds, uinterval;
	CODE:
	useconds = fseconds * 1000000;
	uinterval = finterval * 1000000;
	RETVAL = ualarm (useconds, uinterval);

	OUTPUT:
	RETVAL

#endif

#ifdef HAS_GETTIMEOFDAY

void
gettimeofday()
        PREINIT:
        struct timeval Tp;
        PPCODE:
	int status;
        status = gettimeofday (&Tp, NULL);
        if (GIMME == G_ARRAY) {
	     EXTEND(sp, 2);
             PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
             PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
        } else {
             EXTEND(sp, 1);
             PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
        }

NV
time()
        PREINIT:
        struct timeval Tp;
        CODE:
	int status;
        status = gettimeofday (&Tp, NULL);
        RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
	OUTPUT:
	RETVAL

#endif

#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)

#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))

void
setitimer(which, seconds, interval = 0)
	int which
	NV seconds
	NV interval
    PREINIT:
	struct itimerval newit;
	struct itimerval oldit;
    PPCODE:
	newit.it_value.tv_sec  = seconds;
	newit.it_value.tv_usec =
	  (seconds  - (NV)newit.it_value.tv_sec)    * 1000000.0;
	newit.it_interval.tv_sec  = interval;
	newit.it_interval.tv_usec =
	  (interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
	if (setitimer(which, &newit, &oldit) == 0) {
	  EXTEND(sp, 1);
	  PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
	  if (GIMME == G_ARRAY) {
	    EXTEND(sp, 1);
	    PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
	  }
	}

void
getitimer(which)
	int which
    PREINIT:
	struct itimerval nowit;
    PPCODE:
	if (getitimer(which, &nowit) == 0) {
	  EXTEND(sp, 1);
	  PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
	  if (GIMME == G_ARRAY) {
	    EXTEND(sp, 1);
	    PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
	  }
	}

#endif

# $Id: HiRes.xs,v 1.11 1999/03/16 02:27:38 wegscd Exp wegscd $

# $Log: HiRes.xs,v $
# Revision 1.11  1999/03/16 02:27:38  wegscd
# Add U2time, NVtime. Fix symbols for static link.
#
# Revision 1.10  1998/09/30 02:36:25  wegscd
# Add VMS changes.
#
# Revision 1.9  1998/07/07 02:42:06  wegscd
# Win32 usleep()
#
# Revision 1.8  1998/07/02 01:47:26  wegscd
# Add Win32 code for gettimeofday.
#
# Revision 1.7  1997/11/13 02:08:12  wegscd
# Add missing EXTEND in gettimeofday() scalar code.
#
# Revision 1.6  1997/11/11 02:32:35  wegscd
# Do something useful when calling gettimeofday() in a scalar context.
# The patch is courtesy of Gisle Aas.
#
# Revision 1.5  1997/11/06 03:10:47  wegscd
# Fake ualarm() if we have setitimer.
#
# Revision 1.4  1997/11/05 05:41:23  wegscd
# Turn prototypes ON (suggested by Gisle Aas)
#
# Revision 1.3  1997/10/13 20:56:15  wegscd
# Add PROTOTYPES: DISABLE
#
# Revision 1.2  1997/05/23 01:01:38  wegscd
# Conditional compilation, depending on what the OS gives us.
#
# Revision 1.1  1996/09/03 18:26:35  wegscd
# Initial revision
#
#
Commit	Line	Data
dcf686c9	1	#ifdef __cplusplus
	2	extern "C" {
	3	#endif
	4	#include "EXTERN.h"
	5	#include "perl.h"
	6	#include "XSUB.h"
	7	#ifdef WIN32
	8	#include <time.h>
	9	#else
	10	#include <sys/time.h>
	11	#endif
	12	#ifdef __cplusplus
	13	}
	14	#endif
	15
3c72ec00	16	static IV
	17	constant(char *name, int arg)
	18	{
	19	errno = 0;
	20	switch (*name) {
	21	case 'I':
	22	if (strEQ(name, "ITIMER_REAL"))
	23	#ifdef ITIMER_REAL
	24	return ITIMER_REAL;
	25	#else
	26	goto not_there;
	27	#endif
	28	if (strEQ(name, "ITIMER_REALPROF"))
	29	#ifdef ITIMER_REALPROF
	30	return ITIMER_REALPROF;
	31	#else
	32	goto not_there;
	33	#endif
	34	if (strEQ(name, "ITIMER_VIRTUAL"))
	35	#ifdef ITIMER_VIRTUAL
	36	return ITIMER_VIRTUAL;
	37	#else
	38	goto not_there;
	39	#endif
	40	if (strEQ(name, "ITIMER_PROF"))
	41	#ifdef ITIMER_PROF
	42	return ITIMER_PROF;
	43	#else
	44	goto not_there;
	45	#endif
	46	break;
	47	}
	48	errno = EINVAL;
	49	return 0;
	50
	51	not_there:
	52	errno = ENOENT;
	53	return 0;
	54	}
	55
dcf686c9	56	#if !defined(HAS_GETTIMEOFDAY) && defined(WIN32)
	57	#define HAS_GETTIMEOFDAY
	58
	59	/* shows up in winsock.h?
	60	struct timeval {
	61	long tv_sec;
	62	long tv_usec;
	63	}
	64	*/
	65
	66	int
	67	gettimeofday (struct timeval *tp, int nothing)
	68	{
	69	SYSTEMTIME st;
	70	time_t tt;
	71	struct tm tmtm;
	72	/* mktime converts local to UTC */
	73	GetLocalTime (&st);
	74	tmtm.tm_sec = st.wSecond;
	75	tmtm.tm_min = st.wMinute;
	76	tmtm.tm_hour = st.wHour;
	77	tmtm.tm_mday = st.wDay;
	78	tmtm.tm_mon = st.wMonth - 1;
	79	tmtm.tm_year = st.wYear - 1900;
	80	tmtm.tm_isdst = -1;
	81	tt = mktime (&tmtm);
	82	tp->tv_sec = tt;
	83	tp->tv_usec = st.wMilliseconds * 1000;
	84	return 0;
	85	}
	86	#endif
	87
	88	#if !defined(HAS_GETTIMEOFDAY) && defined(VMS)
	89	#define HAS_GETTIMEOFDAY
	90
	91	#include <time.h> /* gettimeofday */
	92	#include <stdlib.h> /* qdiv */
	93	#include <starlet.h> /* sys$gettim */
	94	#include <descrip.h>
3785778e	95	#ifdef __VAX
	96	#include <lib$routines.h> /* lib$ediv() */
	97	#endif
dcf686c9	98
	99	/*
	100	VMS binary time is expressed in 100 nano-seconds since
	101	system base time which is 17-NOV-1858 00:00:00.00
	102	*/
	103
	104	#define DIV_100NS_TO_SECS 10000000L
	105	#define DIV_100NS_TO_USECS 10L
	106
	107	/*
	108	gettimeofday is supposed to return times since the epoch
	109	so need to determine this in terms of VMS base time
	110	*/
	111	static $DESCRIPTOR(dscepoch,"01-JAN-1970 00:00:00.00");
	112
5cdb7193	113	#ifdef __VAX
3785778e	114	static long base_adjust[2]={0L,0L};
5cdb7193	115	#else
dcf686c9	116	static __int64 base_adjust=0;
5cdb7193	117	#endif
dcf686c9	118
	119	int
	120	gettimeofday (struct timeval tp, void tpz)
	121	{
	122	long ret;
5cdb7193	123	#ifdef __VAX
3785778e	124	long quad[2];
	125	long quad1[2];
	126	long div_100ns_to_secs;
	127	long div_100ns_to_usecs;
	128	long quo,rem;
	129	long quo1,rem1;
5cdb7193	130	#else
dcf686c9	131	__int64 quad;
dcf686c9	132	__qdiv_t ans1,ans2;
5cdb7193	133	#endif
dcf686c9	134	/*
	135	In case of error, tv_usec = 0 and tv_sec = VMS condition code.
	136	The return from function is also set to -1.
	137	This is not exactly as per the manual page.
	138	*/
	139
	140	tp->tv_usec = 0;
	141
3785778e	142	#ifdef __VAX
	143	if (base_adjust[0]==0 && base_adjust[1]==0) {
	144	#else
dcf686c9	145	if (base_adjust==0) { /* Need to determine epoch adjustment */
3785778e	146	#endif
dcf686c9	147	ret=sys$bintim(&dscepoch,&base_adjust);
	148	if (1 != (ret &&1)) {
	149	tp->tv_sec = ret;
	150	return -1;
	151	}
	152	}
	153
	154	ret=sys$gettim(&quad); /* Get VMS system time */
	155	if ((1 && ret) == 1) {
5cdb7193	156	#ifdef __VAX
3785778e	157	quad[0] -= base_adjust[0]; /* convert to epoch offset */
	158	quad[1] -= base_adjust[1]; /* convert 2nd half of quadword */
	159	div_100ns_to_secs = DIV_100NS_TO_SECS;
	160	div_100ns_to_usecs = DIV_100NS_TO_USECS;
	161	lib$ediv(&div_100ns_to_secs,&quad,&quo,&rem);
	162	quad1[0] = rem;
	163	quad1[1] = 0L;
	164	lib$ediv(&div_100ns_to_usecs,&quad1,&quo1,&rem1);
	165	tp->tv_sec = quo; /* Whole seconds */
	166	tp->tv_usec = quo1; /* Micro-seconds */
5cdb7193	167	#else
3785778e	168	quad -= base_adjust; /* convert to epoch offset */
dcf686c9	169	ans1=qdiv(quad,DIV_100NS_TO_SECS);
	170	ans2=qdiv(ans1.rem,DIV_100NS_TO_USECS);
	171	tp->tv_sec = ans1.quot; /* Whole seconds */
	172	tp->tv_usec = ans2.quot; /* Micro-seconds */
3785778e	173	#endif
dcf686c9	174	} else {
	175	tp->tv_sec = ret;
	176	return -1;
	177	}
	178	return 0;
	179	}
	180	#endif
	181
	182	#if !defined(HAS_USLEEP) && defined(HAS_SELECT)
	183	#ifndef SELECT_IS_BROKEN
	184	#define HAS_USLEEP
	185	#define usleep hrt_usleep /* could conflict with ncurses for static build */
	186
	187	void
	188	hrt_usleep(unsigned long usec)
	189	{
	190	struct timeval tv;
	191	tv.tv_sec = 0;
	192	tv.tv_usec = usec;
	193	select(0, (Select_fd_set_t)NULL, (Select_fd_set_t)NULL,
	194	(Select_fd_set_t)NULL, &tv);
	195	}
	196	#endif
	197	#endif
	198
	199	#if !defined(HAS_USLEEP) && defined(WIN32)
	200	#define HAS_USLEEP
	201	#define usleep hrt_usleep /* could conflict with ncurses for static build */
	202
	203	void
	204	hrt_usleep(unsigned long usec)
	205	{
	206	long msec;
	207	msec = usec / 1000;
	208	Sleep (msec);
	209	}
	210	#endif
	211
	212
	213	#if !defined(HAS_UALARM) && defined(HAS_SETITIMER)
	214	#define HAS_UALARM
	215	#define ualarm hrt_ualarm /* could conflict with ncurses for static build */
	216
	217	int
	218	hrt_ualarm(int usec, int interval)
	219	{
	220	struct itimerval itv;
	221	itv.it_value.tv_sec = usec / 1000000;
	222	itv.it_value.tv_usec = usec % 1000000;
	223	itv.it_interval.tv_sec = interval / 1000000;
	224	itv.it_interval.tv_usec = interval % 1000000;
	225	return setitimer(ITIMER_REAL, &itv, 0);
	226	}
	227	#endif
	228
	229	#ifdef HAS_GETTIMEOFDAY
	230
a2e20b18	231	static int
dcf686c9	232	myU2time(UV *ret)
	233	{
	234	struct timeval Tp;
	235	int status;
	236	status = gettimeofday (&Tp, NULL);
	237	ret[0] = Tp.tv_sec;
	238	ret[1] = Tp.tv_usec;
a2e20b18	239	return status;
dcf686c9	240	}
dcf686c9	241
3c72ec00	242	static NV
dcf686c9	243	myNVtime()
	244	{
	245	struct timeval Tp;
	246	int status;
	247	status = gettimeofday (&Tp, NULL);
a2e20b18	248	return status == 0 ? Tp.tv_sec + (Tp.tv_usec / 1000000.) : -1.0;
dcf686c9	249	}
	250
	251	#endif
	252
	253	MODULE = Time::HiRes PACKAGE = Time::HiRes
	254
	255	PROTOTYPES: ENABLE
	256
	257	BOOT:
dcf686c9	258	#ifdef HAS_GETTIMEOFDAY
a2e20b18	259	{
	260	UV auv[2];
	261	hv_store(PL_modglobal, "Time::NVtime", 12, newSViv((IV) myNVtime()), 0);
	262	if (myU2time(auv) == 0)
	263	hv_store(PL_modglobal, "Time::U2time", 12, newSViv((IV) auv[0]), 0);
	264	}
dcf686c9	265	#endif
dcf686c9	266
3c72ec00	267	IV
	268	constant(name, arg)
	269	char * name
	270	int arg
	271
dcf686c9	272	#ifdef HAS_USLEEP
	273
	274	void
	275	usleep(useconds)
	276	int useconds
	277
	278	void
f9d00e57	279	sleep(...)
89c2f7cb	280	PROTOTYPE: ;$
dcf686c9	281	CODE:
f9d00e57	282	if (items > 0)
	283	usleep((int)(SvNV(ST(0)) * 1000000));
	284	else
	285	PerlProc_pause();
dcf686c9	286
	287	#endif
	288
	289	#ifdef HAS_UALARM
	290
	291	int
	292	ualarm(useconds,interval=0)
	293	int useconds
	294	int interval
	295
	296	int
	297	alarm(fseconds,finterval=0)
3c72ec00	298	NV fseconds
3c72ec00	299	NV finterval
dcf686c9	300	PREINIT:
	301	int useconds, uinterval;
	302	CODE:
	303	useconds = fseconds * 1000000;
	304	uinterval = finterval * 1000000;
	305	RETVAL = ualarm (useconds, uinterval);
	306
c6c619a9	307	OUTPUT:
	308	RETVAL
	309
dcf686c9	310	#endif
	311
	312	#ifdef HAS_GETTIMEOFDAY
	313
	314	void
	315	gettimeofday()
	316	PREINIT:
	317	struct timeval Tp;
	318	PPCODE:
	319	int status;
	320	status = gettimeofday (&Tp, NULL);
	321	if (GIMME == G_ARRAY) {
	322	EXTEND(sp, 2);
	323	PUSHs(sv_2mortal(newSViv(Tp.tv_sec)));
	324	PUSHs(sv_2mortal(newSViv(Tp.tv_usec)));
	325	} else {
	326	EXTEND(sp, 1);
	327	PUSHs(sv_2mortal(newSVnv(Tp.tv_sec + (Tp.tv_usec / 1000000.0))));
	328	}
	329
3c72ec00	330	NV
dcf686c9	331	time()
	332	PREINIT:
	333	struct timeval Tp;
	334	CODE:
	335	int status;
	336	status = gettimeofday (&Tp, NULL);
	337	RETVAL = Tp.tv_sec + (Tp.tv_usec / 1000000.);
	338	OUTPUT:
	339	RETVAL
	340
	341	#endif
	342
3c72ec00	343	#if defined(HAS_GETITIMER) && defined(HAS_SETITIMER)
	344
	345	#define TV2NV(tv) ((NV)((tv).tv_sec) + 0.000001 * (NV)((tv).tv_usec))
	346
	347	void
	348	setitimer(which, seconds, interval = 0)
	349	int which
	350	NV seconds
	351	NV interval
	352	PREINIT:
	353	struct itimerval newit;
	354	struct itimerval oldit;
	355	PPCODE:
	356	newit.it_value.tv_sec = seconds;
	357	newit.it_value.tv_usec =
	358	(seconds - (NV)newit.it_value.tv_sec) * 1000000.0;
	359	newit.it_interval.tv_sec = interval;
	360	newit.it_interval.tv_usec =
	361	(interval - (NV)newit.it_interval.tv_sec) * 1000000.0;
	362	if (setitimer(which, &newit, &oldit) == 0) {
	363	EXTEND(sp, 1);
	364	PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_value))));
	365	if (GIMME == G_ARRAY) {
	366	EXTEND(sp, 1);
	367	PUSHs(sv_2mortal(newSVnv(TV2NV(oldit.it_interval))));
	368	}
	369	}
	370
	371	void
	372	getitimer(which)
	373	int which
	374	PREINIT:
	375	struct itimerval nowit;
	376	PPCODE:
	377	if (getitimer(which, &nowit) == 0) {
	378	EXTEND(sp, 1);
	379	PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_value))));
	380	if (GIMME == G_ARRAY) {
	381	EXTEND(sp, 1);
	382	PUSHs(sv_2mortal(newSVnv(TV2NV(nowit.it_interval))));
	383	}
	384	}
	385
	386	#endif
	387
dcf686c9	388	# $Id: HiRes.xs,v 1.11 1999/03/16 02:27:38 wegscd Exp wegscd $
	389
	390	# $Log: HiRes.xs,v $
	391	# Revision 1.11 1999/03/16 02:27:38 wegscd
	392	# Add U2time, NVtime. Fix symbols for static link.
	393	#
	394	# Revision 1.10 1998/09/30 02:36:25 wegscd
	395	# Add VMS changes.
	396	#
	397	# Revision 1.9 1998/07/07 02:42:06 wegscd
	398	# Win32 usleep()
	399	#
	400	# Revision 1.8 1998/07/02 01:47:26 wegscd
	401	# Add Win32 code for gettimeofday.
	402	#
	403	# Revision 1.7 1997/11/13 02:08:12 wegscd
	404	# Add missing EXTEND in gettimeofday() scalar code.
	405	#
	406	# Revision 1.6 1997/11/11 02:32:35 wegscd
	407	# Do something useful when calling gettimeofday() in a scalar context.
	408	# The patch is courtesy of Gisle Aas.
	409	#
	410	# Revision 1.5 1997/11/06 03:10:47 wegscd
	411	# Fake ualarm() if we have setitimer.
	412	#
	413	# Revision 1.4 1997/11/05 05:41:23 wegscd
	414	# Turn prototypes ON (suggested by Gisle Aas)
	415	#
	416	# Revision 1.3 1997/10/13 20:56:15 wegscd
	417	# Add PROTOTYPES: DISABLE
	418	#
	419	# Revision 1.2 1997/05/23 01:01:38 wegscd
	420	# Conditional compilation, depending on what the OS gives us.
	421	#
	422	# Revision 1.1 1996/09/03 18:26:35 wegscd
	423	# Initial revision
	424	#
	425	#