apfs/apfstests
0
0
Fork 0
mirror of https://github.com/linux-apfs/apfstests.git synced 2026-05-01 15:01:44 -07:00
Code Issues Packages Projects Releases Wiki Activity

xfstests: src/feature.c: print a number of online CPUs

Browse Source 
For this purpose we use sysconf() as it is the
preferred platform neutral interface for getting this
sort of information.

Based on Dave Chinner proposal.

Signed-off-by: Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>
Reviewed-by: Rich Johnston <rjohnston@sgi.com>
Signed-off-by: Rich Johnston <rjohnston@sgi.com>
This commit is contained in:
Stanislav Kholmanskikh
2013-10-29 10:03:59 +00:00
committed by Rich Johnston
parent a16f0cfe3a
commit 2dcf4a56d1
1 changed files with 24 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/feature.c
+24 -3
View File
@@ -30,6 +30,7 @@
* Return code: 0 is true, anything else is error/not supported
*
* Test for machine features
* -o report a number of online cpus
* -s report pagesize
* -w report bits per long
*/
@@ -39,6 +40,7 @@
#include <sys/quota.h>
#include <sys/resource.h>
#include <signal.h>
#include <unistd.h>
#ifdef HAVE_XFS_XQM_H
#include <xfs/xqm.h>
@@ -64,7 +66,7 @@ usage(void)
fprintf(stderr, "Usage: feature [-v] -<q|u|g|p|U|G|P> <filesystem>\n");
fprintf(stderr, " feature [-v] -c <file>\n");
fprintf(stderr, " feature [-v] -t <file>\n");
fprintf(stderr, " feature -s | -w\n");
fprintf(stderr, " feature -o | -s | -w\n");
exit(1);
}
@@ -212,9 +214,10 @@ main(int argc, char **argv)
int uflag = 0;
int Uflag = 0;
int wflag = 0;
int oflag = 0;
char *fs = NULL;
while ((c = getopt(argc, argv, "ctgGpPqsuUvw")) != EOF) {
while ((c = getopt(argc, argv, "ctgGopPqsuUvw")) != EOF) {
switch (c) {
case 'c':
cflag++;
@@ -228,6 +231,9 @@ main(int argc, char **argv)
case 'G':
Gflag++;
break;
case 'o':
oflag++;
break;
case 'p':
pflag++;
break;
@@ -262,7 +268,7 @@ main(int argc, char **argv)
if (optind != argc-1) /* need a device */
usage();
fs = argv[argc-1];
} else if (wflag || sflag) {
} else if (wflag || sflag || oflag) {
if (optind != argc)
usage();
} else
@@ -306,6 +312,21 @@ bozo!
#endif
exit(0);
}
if (oflag) {
long ncpus = -1;
#if defined(_SC_NPROCESSORS_ONLN)
ncpus = sysconf(_SC_NPROCESSORS_ONLN);
#elif defined(_SC_NPROC_ONLN)
ncpus = sysconf(_SC_NPROC_ONLN);
#endif
if (ncpus == -1)
ncpus = 1;
printf("%ld\n", ncpus);
exit(0);
}
fprintf(stderr, "feature: dunno what you're after.\n");
return(1);