svn commit: r265782 - head/usr.bin/systat
Alexander V. Chernikov
melifaro at FreeBSD.org
Fri May 9 16:20:56 UTC 2014
Author: melifaro
Date: Fri May 9 16:20:55 2014
New Revision: 265782
URL: http://svnweb.freebsd.org/changeset/base/265782
Log:
Allow systat(1) interactive dispay-specific commands to
be specified via command line.
Submitted by: vsevolod
MFC after: 2 weeks
Modified:
head/usr.bin/systat/ifstat.c
head/usr.bin/systat/main.c
head/usr.bin/systat/systat.1
Modified: head/usr.bin/systat/ifstat.c
==============================================================================
--- head/usr.bin/systat/ifstat.c Fri May 9 15:55:45 2014 (r265781)
+++ head/usr.bin/systat/ifstat.c Fri May 9 16:20:55 2014 (r265782)
@@ -77,7 +77,7 @@ struct if_stat {
u_long if_in_pps_peak;
u_long if_out_pps_peak;
u_int if_row; /* Index into ifmib sysctl */
- u_int if_ypos; /* 0 if not being displayed */
+ int if_ypos; /* -1 if not being displayed */
u_int display;
u_int match;
};
@@ -210,13 +210,19 @@ showifstat(void)
struct if_stat *ifp = NULL;
SLIST_FOREACH(ifp, &curlist, link) {
- if (ifp->display == 0 || (ifp->match == 0) ||
- ifp->if_ypos > LINES - 3 - 1)
- continue;
- PUTNAME(ifp);
- PUTRATE(col2, ifp->if_ypos);
- PUTRATE(col3, ifp->if_ypos);
- PUTTOTAL(col4, ifp->if_ypos);
+ if (ifp->if_ypos < LINES - 3 && ifp->if_ypos != -1)
+ if (ifp->display == 0 || ifp->match == 0) {
+ wmove(wnd, ifp->if_ypos, 0);
+ wclrtoeol(wnd);
+ wmove(wnd, ifp->if_ypos + 1, 0);
+ wclrtoeol(wnd);
+ }
+ else {
+ PUTNAME(ifp);
+ PUTRATE(col2, ifp->if_ypos);
+ PUTRATE(col3, ifp->if_ypos);
+ PUTTOTAL(col4, ifp->if_ypos);
+ }
}
return;
@@ -425,6 +431,8 @@ sort_interface_list(void)
ifp->if_ypos = y;
y += ROW_SPACING;
}
+ else
+ ifp->if_ypos = -1;
}
needsort = 0;
@@ -476,14 +484,13 @@ cmdifstat(const char *cmd, const char *a
retval = ifcmd(cmd, args);
/* ifcmd() returns 1 on success */
if (retval == 1) {
- showifstat();
- refresh();
if (needclear) {
+ showifstat();
+ refresh();
werase(wnd);
labelifstat();
needclear = 0;
}
}
-
return (retval);
}
Modified: head/usr.bin/systat/main.c
==============================================================================
--- head/usr.bin/systat/main.c Fri May 9 15:55:45 2014 (r265781)
+++ head/usr.bin/systat/main.c Fri May 9 16:20:55 2014 (r265782)
@@ -44,6 +44,7 @@ static const char copyright[] =
#include <sys/param.h>
#include <sys/time.h>
#include <sys/sysctl.h>
+#include <sys/queue.h>
#include <err.h>
#include <limits.h>
@@ -53,6 +54,7 @@ static const char copyright[] =
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <unistd.h>
#include "systat.h"
@@ -77,12 +79,67 @@ int use_kvm = 1;
static WINDOW *wload; /* one line window for load average */
+struct cmdentry {
+ SLIST_ENTRY(cmdentry) link;
+ char *cmd; /* Command name */
+ char *argv; /* Arguments vector for a command */
+};
+SLIST_HEAD(, cmdentry) commands;
+
+static void
+parse_cmd_args (int argc, char **argv)
+{
+ int in_command = 0;
+ struct cmdentry *cmd = NULL;
+ double t;
+
+ while (argc) {
+ if (argv[0][0] == '-') {
+ if (in_command)
+ SLIST_INSERT_HEAD(&commands, cmd, link);
+
+ if (memcmp(argv[0], "--", 3) == 0) {
+ in_command = 0; /*-- ends a command explicitly*/
+ argc --, argv ++;
+ continue;
+ }
+ cmd = calloc(1, sizeof(struct cmdentry));
+ if (cmd == NULL)
+ errx(1, "memory allocating failure");
+ cmd->cmd = strdup(&argv[0][1]);
+ if (cmd->cmd == NULL)
+ errx(1, "memory allocating failure");
+ in_command = 1;
+ }
+ else if (!in_command) {
+ t = strtod(argv[0], NULL) * 1000000.0;
+ if (t > 0 && t < (double)UINT_MAX)
+ delay = (unsigned int)t;
+ }
+ else if (cmd != NULL) {
+ cmd->argv = strdup(argv[0]);
+ if (cmd->argv == NULL)
+ errx(1, "memory allocating failure");
+ in_command = 0;
+ SLIST_INSERT_HEAD(&commands, cmd, link);
+ }
+ else
+ errx(1, "invalid arguments list");
+
+ argc--, argv++;
+ }
+ if (in_command && cmd != NULL)
+ SLIST_INSERT_HEAD(&commands, cmd, link);
+
+}
+
int
main(int argc, char **argv)
{
char errbuf[_POSIX2_LINE_MAX], dummy;
size_t size;
double t;
+ struct cmdentry *cmd = NULL;
#ifdef USE_WIDECHAR
(void) setlocale(LC_ALL, "");
@@ -90,8 +147,9 @@ main(int argc, char **argv)
(void) setlocale(LC_TIME, "");
#endif
+ SLIST_INIT(&commands);
argc--, argv++;
- while (argc > 0) {
+ if (argc > 0) {
if (argv[0][0] == '-') {
struct cmdtab *p;
@@ -101,12 +159,10 @@ main(int argc, char **argv)
if (p == (struct cmdtab *)0)
errx(1, "%s: unknown request", &argv[0][1]);
curcmd = p;
- } else {
- t = strtod(argv[0], NULL) * 1000000.0;
- if (t > 0 && t < (double)UINT_MAX)
- delay = (unsigned int)t;
+ argc--, argv++;
}
- argc--, argv++;
+ parse_cmd_args (argc, argv);
+
}
kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, errbuf);
if (kd != NULL) {
@@ -169,8 +225,12 @@ main(int argc, char **argv)
curcmd->c_flags |= CF_INIT;
labels();
- dellave = 0.0;
+ if (curcmd->c_cmd != NULL)
+ SLIST_FOREACH (cmd, &commands, link)
+ if (!curcmd->c_cmd(cmd->cmd, cmd->argv))
+ warnx("command is not understood");
+ dellave = 0.0;
display();
noecho();
crmode();
Modified: head/usr.bin/systat/systat.1
==============================================================================
--- head/usr.bin/systat/systat.1 Fri May 9 15:55:45 2014 (r265781)
+++ head/usr.bin/systat/systat.1 Fri May 9 16:20:55 2014 (r265782)
@@ -37,6 +37,7 @@
.Sh SYNOPSIS
.Nm
.Op Fl display
+.Op Ar display-commands
.Op Ar refresh-interval
.Sh DESCRIPTION
The
@@ -108,6 +109,23 @@ The
.Ar refresh-value
specifies the screen refresh time interval in seconds.
Time interval can be fractional.
+.It Ar display-commands
+A list of commands specific for this display. These commands can also
+be entered interactively and are described for each display separately
+below. If the command of the display requires an argument or arguments,
+it is possible to specify them as separate command line argument. To finish
+display commands it is possible to use double dash at the end
+of the list. For example:
+.Pp
+.Dl Nm Fl ifstat Fl match Ar bge0,em1 Fl pps
+.Pp
+This will display statistics of packets per second for network interfaces
+named as bge0 and em1.
+.Pp
+.Dl Nm Fl iostat Fl numeric Fl - Ar 2.1
+.Pp
+This will display all IO statistics in a numeric format and the information
+will be refreshed each 2.1 seconds.
.El
.Pp
Certain characters cause immediate action by
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