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authorDenys Vlasenko2010-08-16 02:49:21 +0200
committerDenys Vlasenko2010-08-16 02:49:21 +0200
commitc9b9750a0e2a85d3d045cc8d0217d4605f2d7989 (patch)
tree00168254b5f9e960ce42ea36d6d4a78bd269eae4 /procps/iostat.c
parenta4160e15ec866005f3ad30c967bc4829fbb1c8e3 (diff)
downloadbusybox-c9b9750a0e2a85d3d045cc8d0217d4605f2d7989.zip
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libbb: factor out common code from mpstat/iostat
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'procps/iostat.c')
-rw-r--r--procps/iostat.c30
1 files changed, 3 insertions, 27 deletions
diff --git a/procps/iostat.c b/procps/iostat.c
index 76c5353..e8e321b 100644
--- a/procps/iostat.c
+++ b/procps/iostat.c
@@ -114,26 +114,6 @@ static void print_header(void)
buf, uts.machine, G.total_cpus);
}
-static int get_number_of_cpus(void)
-{
-#ifdef _SC_NPROCESSORS_CONF
- return sysconf(_SC_NPROCESSORS_CONF);
-#else
- char buf[128];
- int n = 0;
- FILE *fp;
-
- fp = xfopen_for_read("/proc/cpuinfo");
-
- while (fgets(buf, sizeof(buf), fp))
- if (strncmp(buf, "processor\t:", 11) == 0)
- n++;
-
- fclose(fp);
- return n;
-#endif
-}
-
static void get_localtime(struct tm *ptm)
{
time_t timer;
@@ -148,12 +128,6 @@ static void print_timestamp(void)
printf("%s\n", buf);
}
-/* Does str start with "cpu"? */
-static int starts_with_cpu(const char *str)
-{
- return ((str[0] - 'c') | (str[1] - 'p') | (str[2] - 'u')) == 0;
-}
-
/* Fetch CPU statistics from /proc/stat */
static void get_cpu_statistics(struct stats_cpu *sc)
{
@@ -509,7 +483,9 @@ int iostat_main(int argc, char **argv)
G.clk_tck = get_user_hz();
/* Determine number of CPUs */
- G.total_cpus = get_number_of_cpus();
+ G.total_cpus = get_cpu_count();
+ if (G.total_cpus == 0)
+ G.total_cpus = 1;
/* Parse and process arguments */
/* -k and -m are mutually exclusive */