Mercurial > gnulib
view lib/times.c @ 17363:5a51fb7777a9
sys_select, sys_time: port 2013-01-30 Solaris 2.6 fix to Cygwin
Problem reported by Marco Atzeri in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-03/msg00000.html>.
* lib/sys_select.in.h [HAVE_SYS_SELECT_H && _CYGWIN_SYS_TIME_H]:
Simply delegate to the system <sys/select.h> in this case too.
Also, pay attention to _GL_SYS_SELECT_H_REDIRECT_FROM_SYS_TIME_H only
if OSF/1, since otherwise Cygwin breaks, and it doesn't seem to
be needed on Solaris either.
* lib/sys_time.in.h [_CYGWIN_SYS_TIME_H]:
Simply delgate to the system <sys/time.h> in this case.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Tue, 19 Mar 2013 09:08:47 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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/* Get process times Copyright (C) 2008-2013 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see <http://www.gnu.org/licenses/>. */ /* Written by Simon Josefsson <simon@josefsson.org>, 2008. */ #include <config.h> /* Get times prototype. */ #include <sys/times.h> /* Get round. */ #include <math.h> /* Get GetProcessTimes etc. */ #include <windows.h> static clock_t filetime2clock (FILETIME time) { float f; /* We have a 64-bit value, in the form of two DWORDS aka unsigned int, counting the number of 100-nanosecond intervals. We need to convert these to clock ticks. Older POSIX uses CLK_TCK to indicate the number of clock ticks per second while modern POSIX uses sysconf(_SC_CLK_TCK). Mingw32 does not appear to have sysconf(_SC_CLK_TCK), but appears to have CLK_TCK = 1000 so we use it. Note that CLOCKS_PER_SEC constant does not apply here, it is for use with the clock function. */ f = (unsigned long long) time.dwHighDateTime << 32; f += time.dwLowDateTime; f = f * CLK_TCK / 10000000; return (clock_t) round (f); } clock_t times (struct tms * buffer) { FILETIME creation_time, exit_time, kernel_time, user_time; if (GetProcessTimes (GetCurrentProcess (), &creation_time, &exit_time, &kernel_time, &user_time) == 0) return (clock_t) -1; buffer->tms_utime = filetime2clock (user_time); buffer->tms_stime = filetime2clock (kernel_time); buffer->tms_cutime = 0; buffer->tms_cstime = 0; return filetime2clock (creation_time); }