lsirq: add new command
Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
parent
cb267d2a29
commit
a0f62b0b20
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@ -115,6 +115,7 @@ ylwrap
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/losetup
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/lsblk
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/lsipc
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/lsirq
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/lscpu
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/lslocks
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/lslogins
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14
configure.ac
14
configure.ac
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@ -1768,14 +1768,28 @@ AC_ARG_ENABLE([ipcs],
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UL_BUILD_INIT([ipcs])
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AM_CONDITIONAL([BUILD_IPCS], [test "x$build_ipcs" = xyes])
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AC_ARG_ENABLE([irqtop],
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AS_HELP_STRING([--disable-irqtop], [do not build irqtop]),
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[], [UL_DEFAULT_ENABLE([irqtop], [yes])]
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)
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UL_BUILD_INIT([irqtop])
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UL_REQUIRES_LINUX([irqtop])
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UL_REQUIRES_BUILD([irqtop], [libsmartcols])
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UL_REQUIRES_HAVE([irqtop], [open_memstream], [open_memstream function])
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UL_REQUIRES_HAVE([irqtop], [ncursesw,slang,ncurses], [ncursesw, ncurses or slang library])
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AM_CONDITIONAL([BUILD_IRQTOP], [test "x$build_irqtop" = xyes])
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AC_ARG_ENABLE([lsirq],
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AS_HELP_STRING([--disable-lsirq], [do not build lsirq]),
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[], [UL_DEFAULT_ENABLE([lsirq], [yes])]
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)
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UL_BUILD_INIT([lsirq])
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UL_REQUIRES_LINUX([lsirq])
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UL_REQUIRES_BUILD([lsirq], [libsmartcols])
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AM_CONDITIONAL([BUILD_LSIRQ], [test "x$build_lsirq" = xyes])
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UL_BUILD_INIT([choom], [check])
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UL_REQUIRES_LINUX([choom])
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AM_CONDITIONAL([BUILD_CHOOM], [test "x$build_choom" = xyes])
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@ -61,6 +61,16 @@ irqtop_LDADD = $(LDADD) libcommon.la $(NCURSES_LIBS) $(REALTIME_LIBS) libsmartco
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irqtop_CFLAGS = $(AM_CFLAGS) $(NCURSES_CFLAGS) -I$(ul_libsmartcols_incdir)
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endif
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if BUILD_LSIRQ
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usrbin_exec_PROGRAMS += lsirq
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dist_man_MANS += sys-utils/lsirq.1
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lsirq_SOURCES = sys-utils/lsirq.c \
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sys-utils/irq-common.c \
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sys-utils/irq-common.h
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lsirq_LDADD = $(LDADD) libcommon.la libsmartcols.la
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lsirq_CFLAGS = $(AM_CFLAGS) -I$(ul_libsmartcols_incdir)
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endif
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if BUILD_LSIPC
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usrbin_exec_PROGRAMS += lsipc
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dist_man_MANS += sys-utils/lsipc.1
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@ -85,13 +85,16 @@ static inline const struct colinfo *get_column_info(
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return &infos[get_column_id(out, num)];
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}
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void irq_print_columns(FILE *f)
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void irq_print_columns(FILE *f, int nodelta)
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{
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size_t i;
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for (i = 0; i < ARRAY_SIZE(infos); i++)
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for (i = 0; i < ARRAY_SIZE(infos); i++) {
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if (nodelta && i == COL_DELTA)
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continue;
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fprintf(f, " %-5s %s\n", infos[i].name, _(infos[i].help));
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}
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}
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static struct libscols_table *new_scols_table(struct irq_output *out)
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{
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@ -48,7 +48,7 @@ struct irq_output {
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int irq_column_name_to_id(char const *const name, size_t const namesz);
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void free_irqstat(struct irq_stat *stat);
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void irq_print_columns(FILE *f);
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void irq_print_columns(FILE *f, int nodelta);
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void set_sort_func_by_name(struct irq_output *out, const char *name);
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void set_sort_func_by_key(struct irq_output *out, const char c);
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@ -232,7 +232,7 @@ static void __attribute__((__noreturn__)) usage(void)
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fputs(_(" q Q quit program\n"), stdout);
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fputs(USAGE_COLUMNS, stdout);
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irq_print_columns(stdout);
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irq_print_columns(stdout, 0);
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printf(USAGE_MAN_TAIL("irqtop(1)"));
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exit(EXIT_SUCCESS);
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@ -0,0 +1,47 @@
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.TH IRQTOP "1" "February 2020" "util-linux" "User Commands"
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.SH NAME
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lsirq \- utility to display kernel interrupt information
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.SH SYNOPSIS
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.B lsirq
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[options]
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.SH DESCRIPTION
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Display kernel interrupt counter information.
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.PP
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The default output is subject to change. So whenever possible,
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you should avoid using default outputs in your scripts. Always
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explicitly define expected columns by using \fB\-\-output\fR.
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.SH OPTIONS
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.TP
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.BR \-o , " \-\-output " \fIlist\fP
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Specify which output columns to print. Use \fB\-\-help\fR to get a list of all supported columns.
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The default list of columns may be extended if list is specified in the format +list.
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.TP
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.BR \-s , " \-\-sort " \fIcolumn\fP
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Specify sort criteria by column name. See \fB\-\-help\fR output to get column
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names.
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.TP
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.BR \-J , " \-\-json
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Update interrupt output every
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.TP
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.BR \-V ", " \-\-version
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Display version information and exit.
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.TP
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.BR \-h ,\ \-\-help
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Display help text and exit.
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.SH AUTHORS
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.MT pizhenwei@\:bytedance.com
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Zhenwei Pi
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.ME
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.br
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.MT kerolasa@\:iki.fi
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Sami Kerola
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.ME
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.br
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.MT kzak@\:redhat.com
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Karel Zak
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.ME
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.SH AVAILABILITY
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The example command is part of the util-linux package and is available from
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.UR https://\:www.kernel.org\:/pub\:/linux\:/utils\:/util-linux/
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Linux Kernel Archive
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.UE .
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@ -0,0 +1,128 @@
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/*
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* lsirq - utility to display kernel interrupt information.
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*
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* Copyright (C) 2019 zhenwei pi <pizhenwei@bytedance.com>
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* Copyright (C) 2020 Karel Zak <kzak@redhat.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <ctype.h>
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#include <errno.h>
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#include <getopt.h>
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#include <limits.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <libsmartcols.h>
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#include "closestream.h"
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#include "strutils.h"
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#include "xalloc.h"
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#include "irq-common.h"
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static int print_irq_data(struct irq_output *out)
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{
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struct libscols_table *table;
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table = get_scols_table(out, NULL, NULL);
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if (!table)
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return -1;
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scols_print_table(table);
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scols_unref_table(table);
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return 0;
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}
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static void __attribute__((__noreturn__)) usage(void)
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{
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fputs(USAGE_HEADER, stdout);
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printf(_(" %s [options]\n"), program_invocation_short_name);
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fputs(USAGE_SEPARATOR, stdout);
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puts(_("Utility to display kernel interrupt information."));
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fputs(USAGE_OPTIONS, stdout);
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fputs(_(" -J, --json use JSON output format\n"), stdout);
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fputs(_(" -o, --output <list> define which output columns to use\n"), stdout);
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fputs(_(" -s, --sort <column> specify sort column\n"), stdout);
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fputs(USAGE_SEPARATOR, stdout);
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printf(USAGE_HELP_OPTIONS(22));
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fputs(USAGE_COLUMNS, stdout);
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irq_print_columns(stdout, 1);
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printf(USAGE_MAN_TAIL("lsirq(1)"));
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exit(EXIT_SUCCESS);
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}
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int main(int argc, char **argv)
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{
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struct irq_output out = {
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.ncolumns = 0
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};
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static const struct option longopts[] = {
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{"sort", required_argument, NULL, 's'},
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{"output", required_argument, NULL, 'o'},
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{"json", no_argument, NULL, 'J'},
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'V'},
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{NULL, 0, NULL, 0}
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};
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int c;
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const char *outarg = NULL;
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setlocale(LC_ALL, "");
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while ((c = getopt_long(argc, argv, "o:s:hJV", longopts, NULL)) != -1) {
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switch (c) {
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case 'J':
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out.json = 1;
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break;
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case 'o':
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outarg = optarg;
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break;
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case 's':
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set_sort_func_by_name(&out, optarg);
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break;
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case 'V':
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print_version(EXIT_SUCCESS);
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case 'h':
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usage();
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default:
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errtryhelp(EXIT_FAILURE);
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}
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}
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/* default */
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if (!out.ncolumns) {
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out.columns[out.ncolumns++] = COL_IRQ;
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out.columns[out.ncolumns++] = COL_TOTAL;
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out.columns[out.ncolumns++] = COL_NAME;
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}
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/* add -o [+]<list> to putput */
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if (outarg && string_add_to_idarray(outarg, out.columns,
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ARRAY_SIZE(out.columns),
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&out.ncolumns,
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irq_column_name_to_id) < 0)
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exit(EXIT_FAILURE);
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return print_irq_data(&out) == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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}
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