diff options
Diffstat (limited to 'gl/getloadavg.c')
| -rw-r--r-- | gl/getloadavg.c | 46 |
1 files changed, 36 insertions, 10 deletions
diff --git a/gl/getloadavg.c b/gl/getloadavg.c index cfa62735..5faa8faa 100644 --- a/gl/getloadavg.c +++ b/gl/getloadavg.c @@ -1,16 +1,16 @@ /* Get the system load averages. Copyright (C) 1985, 1986, 1987, 1988, 1989, 1991, 1992, 1993, 1994, - 1995, 1997, 1999, 2000, 2003, 2004, 2005, 2006 Free Software + 1995, 1997, 1999, 2000, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc. NOTE: The canonical source of this file is maintained with gnulib. Bugs can be reported to bug-gnulib@gnu.org. - This program is free software; you can redistribute it and/or modify + 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. + the Free Software Foundation; either version 3 of the License, 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 @@ -18,9 +18,7 @@ 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, write to the Free Software - Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, - USA. */ + along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* Compile-time symbols that this file uses: @@ -32,6 +30,8 @@ If that isn't an option, then just put AC_CHECK_FUNCS(pstat_getdynamic) in your configure.in file. + HAVE_LIBPERFSTAT Define this if your system has the + perfstat_cpu_total function in libperfstat (AIX). FIXUP_KERNEL_SYMBOL_ADDR() Adjust address in returned struct nlist. KERNEL_FILE Name of the kernel file to nlist. LDAV_CVT() Scale the load average from the kernel. @@ -188,6 +188,8 @@ # include <sys/socket.h> # include <net/route.h> # include <sys/table.h> +/* Tru64 4.0D's table.h redefines sys */ +# undef sys # endif # if defined (__osf__) && (defined (mips) || defined (__mips__)) @@ -254,7 +256,7 @@ # define LOAD_AVE_TYPE long # endif -# ifdef _AIX +# if defined _AIX && ! defined HAVE_LIBPERFSTAT # define LOAD_AVE_TYPE long # endif @@ -309,7 +311,7 @@ # define FSCALE 100.0 # endif -# ifdef _AIX +# if defined _AIX && !defined HAVE_LIBPERFSTAT # define FSCALE 65536.0 # endif @@ -347,7 +349,7 @@ # define LDAV_SYMBOL "_Loadavg" # endif -# if !defined (LDAV_SYMBOL) && ((defined (hpux) && !defined (hp9000s300)) || defined (_SEQUENT_) || defined (SVR4) || defined (ISC) || defined (sgi) || (defined (ardent) && defined (titan)) || defined (_AIX)) +# if !defined (LDAV_SYMBOL) && ((defined (hpux) && !defined (hp9000s300)) || defined (_SEQUENT_) || defined (SVR4) || defined (ISC) || defined (sgi) || (defined (ardent) && defined (titan)) || (defined (_AIX) && !defined(HAVE_LIBPERFSTAT))) # define LDAV_SYMBOL "avenrun" # endif @@ -404,6 +406,14 @@ # endif /* LOAD_AVE_TYPE */ +# if defined HAVE_LIBPERFSTAT +# include <libperfstat.h> +# include <sys/proc.h> +# ifndef SBITS +# define SBITS 16 +# endif +# endif + # if defined (__GNU__) && !defined (NeXT) /* Note that NeXT Openstep defines __GNU__ even though it should not. */ /* GNU system acts much like NeXT, for load average purposes, @@ -568,6 +578,22 @@ getloadavg (double loadavg[], int nelem) # endif /* hpux && HAVE_PSTAT_GETDYNAMIC */ +# if ! defined LDAV_DONE && defined HAVE_LIBPERFSTAT +# define LDAV_DONE +# undef LOAD_AVE_TYPE +/* Use perfstat_cpu_total because we don't have to be root. */ + { + perfstat_cpu_total_t cpu_stats; + int result = perfstat_cpu_total (NULL, &cpu_stats, sizeof cpu_stats, 1); + if (result == -1) + return result; + loadavg[0] = cpu_stats.loadavg[0] / (double)(1 << SBITS); + loadavg[1] = cpu_stats.loadavg[1] / (double)(1 << SBITS); + loadavg[2] = cpu_stats.loadavg[2] / (double)(1 << SBITS); + elem = 3; + } +# endif + # if !defined (LDAV_DONE) && (defined (__linux__) || defined (__CYGWIN__)) # define LDAV_DONE # undef LOAD_AVE_TYPE |