diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/getsysstats.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/getsysstats.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c index bf39bd9661..f58e2e288a 100644 --- a/sysdeps/unix/sysv/linux/getsysstats.c +++ b/sysdeps/unix/sysv/linux/getsysstats.c @@ -1,5 +1,5 @@ /* Determine various system internal values, Linux version. - Copyright (C) 1996,1997,1998,1999,2000,2001 Free Software Foundation, Inc. + Copyright (C) 1996-2001, 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996. @@ -20,6 +20,7 @@ #include <alloca.h> #include <assert.h> +#include <ctype.h> #include <errno.h> #include <mntent.h> #include <paths.h> @@ -146,17 +147,37 @@ __get_nprocs () /* If we haven't found an appropriate entry return 1. */ if (proc_path != NULL) { - char *proc_cpuinfo = alloca (strlen (proc_path) + sizeof ("/cpuinfo")); - __stpcpy (__stpcpy (proc_cpuinfo, proc_path), "/cpuinfo"); + char *proc_fname = alloca (strlen (proc_path) + sizeof ("/cpuinfo")); - fp = fopen (proc_cpuinfo, "r"); + /* The /proc/stat format is more uniform, use it by default. */ + __stpcpy (__stpcpy (proc_fname, proc_path), "/stat"); + + fp = fopen (proc_fname, "r"); if (fp != NULL) { /* No threads use this stream. */ __fsetlocking (fp, FSETLOCKING_BYCALLER); - GET_NPROCS_PARSER (fp, buffer, result); + + result = 0; + while (fgets_unlocked (buffer, sizeof (buffer), fp) != NULL) + if (strncmp (buffer, "cpu", 3) == 0 && isdigit (buffer[3])) + ++result; + fclose (fp); } + else + { + __stpcpy (__stpcpy (proc_fname, proc_path), "/cpuinfo"); + + fp = fopen (proc_fname, "r"); + if (fp != NULL) + { + /* No threads use this stream. */ + __fsetlocking (fp, FSETLOCKING_BYCALLER); + GET_NPROCS_PARSER (fp, buffer, result); + fclose (fp); + } + } } return result; |