[src/trunk]: src/usr.sbin/intrctl add "-w wait" arg to "intrctl list" to have...

[mrg <mrg%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/30fa314caaf2
branches:  trunk
changeset: 459730:30fa314caaf2
user:      mrg <mrg%NetBSD.org@localhost>
date:      Mon Sep 23 09:17:19 2019 +0000

description:
add "-w wait" arg to "intrctl list" to have it loop forever.
don't bother testing poitner for NULL before calling free().

diffstat:

 usr.sbin/intrctl/intrctl.8    |  14 +++++++++--
 usr.sbin/intrctl/intrctl.c    |  48 ++++++++++++++++++++++++++++--------------
 usr.sbin/intrctl/intrctl_io.c |   7 ++---
 3 files changed, 46 insertions(+), 23 deletions(-)

diffs (159 lines):

diff -r ee0393eb796c -r 30fa314caaf2 usr.sbin/intrctl/intrctl.8
--- a/usr.sbin/intrctl/intrctl.8        Mon Sep 23 08:50:52 2019 +0000
+++ b/usr.sbin/intrctl/intrctl.8        Mon Sep 23 09:17:19 2019 +0000
@@ -1,4 +1,4 @@
-.\" $NetBSD: intrctl.8,v 1.4 2016/10/15 12:06:27 jdolecek Exp $
+.\" $NetBSD: intrctl.8,v 1.5 2019/09/23 09:17:19 mrg Exp $
 .\"
 .\" Copyright (c) 2015 Internet Initiative Japan Inc.
 .\" All rights reserved.
@@ -24,7 +24,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd October 15, 2016
+.Dd September 22, 2019
 .Dt INTRCTL 8
 .Os
 .Sh NAME
@@ -56,7 +56,7 @@
 If
 .Ar cpu_index
 is already enabled, this command has no effect.
-.It list Op Fl c
+.It list Oo Fl c Oc Op Fl w Ar wait
 for each intrid in the system, display interrupt counts per CPU.
 The intrid is an interrupt name such as "ioapic0 pin 22" for x86.
 .Pp
@@ -64,6 +64,14 @@
 .Fl c
 is specified, display compact list with total counts per interrupt,
 and CPU affinity as comma separated list of CPU indexes.
+.Pp
+If
+.Fl w
+is specified then
+.Nm
+display the data continuously with a
+.Ar wait
+seconds delay between each iteration.
 .It nointr Fl c Ar cpu_index
 disable to set an interrupt's affinity to
 .Ar cpu_index .
diff -r ee0393eb796c -r 30fa314caaf2 usr.sbin/intrctl/intrctl.c
--- a/usr.sbin/intrctl/intrctl.c        Mon Sep 23 08:50:52 2019 +0000
+++ b/usr.sbin/intrctl/intrctl.c        Mon Sep 23 09:17:19 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: intrctl.c,v 1.8 2018/06/22 22:50:53 jdolecek Exp $     */
+/*     $NetBSD: intrctl.c,v 1.9 2019/09/23 09:17:19 mrg Exp $  */
 
 /*
  * Copyright (c) 2015 Internet Initiative Japan Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: intrctl.c,v 1.8 2018/06/22 22:50:53 jdolecek Exp $");
+__RCSID("$NetBSD: intrctl.c,v 1.9 2019/09/23 09:17:19 mrg Exp $");
 
 #include <sys/param.h>
 #include <sys/sysctl.h>
@@ -99,7 +99,7 @@
 {
        const char *progname = getprogname();
 
-       fprintf(stderr, "usage: %s list [-c]\n", progname);
+       fprintf(stderr, "usage: %s list [-c] [-w secs]\n", progname);
        fprintf(stderr, "       %s affinity -i interrupt_name -c cpu_index\n", progname);
        fprintf(stderr, "       %s intr -c cpu_index\n", progname);
        fprintf(stderr, "       %s nointr -c cpu_index\n", progname);
@@ -110,25 +110,13 @@
 static int intrctl_io_alloc_retry_count = 4;
 
 static void
-intrctl_list(int argc, char **argv)
+intrctl_list_one(int compact)
 {
        char buf[64];
        struct intrio_list_line *illine;
        int i, ncpus, *cpucol;
        void *handle;
        size_t intridlen;
-       int compact = 0;
-       int ch;
-
-       while ((ch = getopt(argc, argv, "c")) != -1) {
-               switch (ch) {
-               case 'c':
-                       compact = 1;
-                       break;
-               default:
-                       usage();
-               }
-       }
 
        handle = intrctl_io_alloc(intrctl_io_alloc_retry_count);
        if (handle == NULL)
@@ -217,6 +205,34 @@
 }
 
 static void
+intrctl_list(int argc, char **argv)
+{
+       int seconds = 0;
+       bool compact = false;
+       int ch;
+
+       while ((ch = getopt(argc, argv, "cw:")) != -1) {
+               switch (ch) {
+               case 'c':
+                       compact = true;
+                       break;
+               case 'w':
+                       seconds = atoi(optarg);
+                       if (seconds < 0)
+                               errx(1, "seconds must be positive.");
+                       break;
+               default:
+                       usage();
+               }
+       }
+
+       do {
+               intrctl_list_one(compact);
+               sleep(seconds);
+       } while (seconds);
+}
+
+static void
 intrctl_affinity(int argc, char **argv)
 {
        struct intrio_set iset;
diff -r ee0393eb796c -r 30fa314caaf2 usr.sbin/intrctl/intrctl_io.c
--- a/usr.sbin/intrctl/intrctl_io.c     Mon Sep 23 08:50:52 2019 +0000
+++ b/usr.sbin/intrctl/intrctl_io.c     Mon Sep 23 09:17:19 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: intrctl_io.c,v 1.4 2018/06/23 11:11:00 jdolecek Exp $  */
+/*     $NetBSD: intrctl_io.c,v 1.5 2019/09/23 09:17:19 mrg Exp $       */
 
 /*
  * Copyright (c) 2015 Internet Initiative Japan Inc.
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: intrctl_io.c,v 1.4 2018/06/23 11:11:00 jdolecek Exp $");
+__RCSID("$NetBSD: intrctl_io.c,v 1.5 2019/09/23 09:17:19 mrg Exp $");
 
 #include <sys/sysctl.h>
 #include <sys/intrio.h>
@@ -76,8 +76,7 @@
                }
        }
 error:
-       if (buf != NULL)
-               free(buf);
+       free(buf);
        return NULL;
 }