diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux')
| -rw-r--r-- | sysdeps/unix/sysv/linux/getsysstats.c | 36 |
1 files changed, 4 insertions, 32 deletions
diff --git a/sysdeps/unix/sysv/linux/getsysstats.c b/sysdeps/unix/sysv/linux/getsysstats.c index d1ea074..064eaa0 100644 --- a/sysdeps/unix/sysv/linux/getsysstats.c +++ b/sysdeps/unix/sysv/linux/getsysstats.c @@ -19,7 +19,6 @@ #include <array_length.h> #include <assert.h> #include <ctype.h> -#include <dirent.h> #include <errno.h> #include <ldsodefs.h> #include <limits.h> @@ -136,7 +135,7 @@ get_nproc_stat (void) } static int -get_nprocs_cpu_online (void) +read_sysfs_file (const char *fname) { enum { buffer_size = 1024 }; char buffer[buffer_size]; @@ -146,7 +145,7 @@ get_nprocs_cpu_online (void) const int flags = O_RDONLY | O_CLOEXEC; /* This file contains comma-separated ranges. */ - int fd = __open_nocancel ("/sys/devices/system/cpu/online", flags); + int fd = __open_nocancel (fname, flags); char *l; int result = 0; if (fd != -1) @@ -191,31 +190,6 @@ get_nprocs_cpu_online (void) } static int -get_nprocs_cpu (void) -{ - int count = 0; - DIR *dir = __opendir ("/sys/devices/system/cpu"); - if (dir != NULL) - { - struct dirent64 *d; - - while ((d = __readdir64 (dir)) != NULL) - /* NB: the sysfs has d_type support. */ - if (d->d_type == DT_DIR && strncmp (d->d_name, "cpu", 3) == 0) - { - char *endp; - unsigned long int nr = strtoul (d->d_name + 3, &endp, 10); - if (nr != ULONG_MAX && endp != d->d_name + 3 && *endp == '\0') - ++count; - } - - __closedir (dir); - - } - return count; -} - -static int get_nprocs_fallback (void) { int result; @@ -239,8 +213,7 @@ get_nprocs_fallback (void) int __get_nprocs (void) { - /* Try /sys/devices/system/cpu/online first. */ - int result = get_nprocs_cpu_online (); + int result = read_sysfs_file ("/sys/devices/system/cpu/online"); if (result != 0) return result; @@ -255,8 +228,7 @@ weak_alias (__get_nprocs, get_nprocs) int __get_nprocs_conf (void) { - /* Try /sys/devices/system/cpu/ first. */ - int result = get_nprocs_cpu (); + int result = read_sysfs_file ("/sys/devices/system/cpu/possible"); if (result != 0) return result; |