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Diffstat (limited to 'contrib/libf2c/libU77/dtime_.c')
| -rw-r--r-- | contrib/libf2c/libU77/dtime_.c | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/contrib/libf2c/libU77/dtime_.c b/contrib/libf2c/libU77/dtime_.c deleted file mode 100644 index 19100e698de6f..0000000000000 --- a/contrib/libf2c/libU77/dtime_.c +++ /dev/null @@ -1,172 +0,0 @@ -/* 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 */ -} |