d566d0a5f8
server on 11-July-2000, at 17:32 Zulu. This is the last point [that I know of] that Cygnus synced their internal IA-64 GCC tree with the public FSF one.
173 lines
5.2 KiB
C
173 lines
5.2 KiB
C
/* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
|
|
This file is part of GNU Fortran libU77 library.
|
|
|
|
This library is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Library General Public License as published
|
|
by the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
GNU Fortran is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with GNU Fortran; see the file COPYING.LIB. If
|
|
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
#if HAVE_STDLIB_H
|
|
# include <stdlib.h>
|
|
#endif
|
|
#if HAVE_UNISTD_H
|
|
# include <unistd.h>
|
|
#endif
|
|
#include <sys/types.h>
|
|
#if HAVE_SYS_TIMES_H
|
|
# include <sys/times.h>
|
|
#endif
|
|
#if HAVE_SYS_PARAM_H
|
|
# include <sys/param.h>
|
|
#endif
|
|
#if HAVE_GETRUSAGE
|
|
# include <sys/time.h>
|
|
# include <sys/resource.h>
|
|
#endif
|
|
#if defined (_WIN32)
|
|
# include <windows.h>
|
|
# undef min
|
|
# undef max
|
|
#endif
|
|
#include <errno.h> /* for ENOSYS */
|
|
#include "f2c.h"
|
|
|
|
/* For dtime, etime we store the clock tick parameter (clk_tck) the
|
|
first time either of them is invoked rather than each time. This
|
|
approach probably speeds up each invocation by avoiding a system
|
|
call each time, but means that the overhead of the first call is
|
|
different to all others. */
|
|
static long clk_tck = 0;
|
|
|
|
#ifdef KR_headers
|
|
double G77_dtime_0 (tarray)
|
|
real tarray[2];
|
|
#else
|
|
double G77_dtime_0 (real tarray[2])
|
|
#endif
|
|
{
|
|
#if defined (_WIN32)
|
|
static int win32_platform = -1;
|
|
|
|
if (win32_platform == -1)
|
|
{
|
|
OSVERSIONINFO osv;
|
|
osv.dwOSVersionInfoSize = sizeof (osv);
|
|
GetVersionEx (&osv);
|
|
win32_platform = osv.dwPlatformId;
|
|
}
|
|
|
|
/* We need to use this hack on non-NT platforms, where the first call
|
|
returns 0.0 and subsequent ones return the correct value. */
|
|
if (win32_platform != VER_PLATFORM_WIN32_NT)
|
|
{
|
|
static unsigned long long clock_freq;
|
|
static unsigned long long old_count;
|
|
unsigned long long count;
|
|
double delta;
|
|
LARGE_INTEGER counter_val;
|
|
|
|
if (clock_freq == 0)
|
|
{
|
|
LARGE_INTEGER freq;
|
|
if (! QueryPerformanceFrequency (&freq))
|
|
{
|
|
errno = ENOSYS;
|
|
return 0.0;
|
|
}
|
|
else
|
|
{
|
|
clock_freq = ((unsigned long long) freq.HighPart << 32)
|
|
+ ((unsigned) freq.LowPart);
|
|
}
|
|
}
|
|
|
|
if (! QueryPerformanceCounter (&counter_val))
|
|
return -1.0;
|
|
|
|
count = ((unsigned long long) counter_val.HighPart << 32)
|
|
+ (unsigned) counter_val.LowPart;
|
|
delta = ((double) (count - old_count)) / clock_freq;
|
|
tarray[0] = (float) delta;
|
|
tarray[1] = 0.0;
|
|
old_count = count;
|
|
}
|
|
else
|
|
{
|
|
static unsigned long long old_utime, old_stime;
|
|
unsigned long long utime, stime;
|
|
FILETIME creation_time, exit_time, kernel_time, user_time;
|
|
|
|
GetProcessTimes (GetCurrentProcess (), &creation_time, &exit_time,
|
|
&kernel_time, &user_time);
|
|
utime = ((unsigned long long) user_time.dwHighDateTime << 32)
|
|
+ (unsigned) user_time.dwLowDateTime;
|
|
stime = ((unsigned long long) kernel_time.dwHighDateTime << 32)
|
|
+ (unsigned) kernel_time.dwLowDateTime;
|
|
|
|
tarray[0] = (utime - old_utime) / 1.0e7;
|
|
tarray[1] = (stime - old_stime) / 1.0e7;
|
|
old_utime = utime;
|
|
old_stime = stime;
|
|
}
|
|
return tarray[0] + tarray[1];
|
|
|
|
#elif defined (HAVE_GETRUSAGE) || defined (HAVE_TIMES)
|
|
/* The getrusage version is only the default for convenience. */
|
|
#ifdef HAVE_GETRUSAGE
|
|
float utime, stime;
|
|
static float old_utime = 0.0, old_stime = 0.0;
|
|
struct rusage rbuff;
|
|
|
|
if (getrusage (RUSAGE_SELF, &rbuff) != 0)
|
|
abort ();
|
|
utime = (float) (rbuff.ru_utime).tv_sec +
|
|
(float) (rbuff.ru_utime).tv_usec/1000000.0;
|
|
tarray[0] = utime - (float) old_utime;
|
|
stime = (float) (rbuff.ru_stime).tv_sec +
|
|
(float) (rbuff.ru_stime).tv_usec/1000000.0;
|
|
tarray[1] = stime - old_stime;
|
|
#else /* HAVE_GETRUSAGE */
|
|
time_t utime, stime;
|
|
static time_t old_utime = 0, old_stime = 0;
|
|
struct tms buffer;
|
|
|
|
/* NeXTStep seems to define _SC_CLK_TCK but not to have sysconf;
|
|
fixme: does using _POSIX_VERSION help? */
|
|
# if defined _SC_CLK_TCK && defined _POSIX_VERSION
|
|
if (! clk_tck) clk_tck = sysconf(_SC_CLK_TCK);
|
|
# elif defined CLOCKS_PER_SECOND
|
|
if (! clk_tck) clk_tck = CLOCKS_PER_SECOND;
|
|
# elif defined CLK_TCK
|
|
if (! clk_tck) clk_tck = CLK_TCK;
|
|
# elif defined HZ
|
|
if (! clk_tck) clk_tck = HZ;
|
|
# elif defined HAVE_GETRUSAGE
|
|
# else
|
|
#error Dont know clock tick length
|
|
# endif
|
|
if (times(&buffer) == (clock_t)-1) return -1.0;
|
|
utime = buffer.tms_utime; stime = buffer.tms_stime;
|
|
tarray[0] = ((float)(utime - old_utime)) / (float)clk_tck;
|
|
tarray[1] = ((float)(stime - old_stime)) / (float)clk_tck;
|
|
#endif /* HAVE_GETRUSAGE */
|
|
old_utime = utime; old_stime = stime;
|
|
return (tarray[0]+tarray[1]);
|
|
#else /* ! HAVE_GETRUSAGE && ! HAVE_TIMES */
|
|
errno = ENOSYS;
|
|
return 0.0;
|
|
#endif /* ! HAVE_GETRUSAGE && ! HAVE_TIMES */
|
|
}
|