mirror of
https://github.com/ibm-s390-linux/s390-tools.git
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b627b8d8e1
This commit is based on the s390-tools-1.39.0 version. Changes on top of s390-tools-1.39.0: - Add MIT license to all source files - Add LICENSE file - Transform REAMDE to README.md (markdown) - Add AUTHORS.md file - Add CONTRIBUTING.md file - Move changelog from README to CHANGELOG.md file Reviewed-by: Stefan Haberland <sth@linux.vnet.ibm.com> Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/*
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* mon_fsstatd - Write file system utilization data to the z/VM monitor stream
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*
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* Definitions used by mon_fsstatd
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*
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* Copyright IBM Corp. 2006, 2017
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*
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* s390-tools is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#ifndef __mon_fsstatd_h__
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#define __mon_fsstatd_h__
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#include <getopt.h>
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#include <linux/types.h>
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#include <sys/ioctl.h>
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#include "lib/zt_common.h"
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/* mon_function values */
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#define MONWRITE_START_INTERVAL 0x00 /* start interval recording */
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#define MONWRITE_STOP_INTERVAL 0x01 /* stop interval or config recording */
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#define MAX_REC_LEN 4010
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#define MAX_NAMES_LEN 3900
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#define MAX_NAME_LEN 1800
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#define MAX_DIR_LEN 1800
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#define MAX_TYPE_LEN 256
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#define FSSTATD_APPLID 0x01
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/* Assume usually lengths of name, dir and type <= 512 bytes total */
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#define SMALL_MON_RECORD_LEN 602
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#define LARGE_MON_RECORD_LEN 4010
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struct monwrite_hdr {
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unsigned char mon_function;
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unsigned short applid;
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unsigned char record_num;
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unsigned short version;
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unsigned short release;
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unsigned short mod_level;
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unsigned short datalen;
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unsigned char hdrlen;
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} __attribute__((packed));
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struct fsstatd_hdr {
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__u64 time_stamp;
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__u16 fsstat_data_len;
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__u16 fsstat_data_offset;
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} __attribute__((packed));
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struct fsstatd_data {
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__u64 fs_bsize;
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__u64 fs_frsize;
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__u64 fs_blocks;
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__u64 fs_bfree;
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__u64 fs_bavail;
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__u64 fs_files;
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__u64 fs_ffree;
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__u64 fs_favail;
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__u64 fs_flag;
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};
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static struct option options[] = {
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{"help", no_argument, NULL, 'h'},
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{"version", no_argument, NULL, 'v'},
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{"attach", no_argument, NULL, 'a'},
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{"interval", required_argument, NULL, 'i'},
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{NULL, 0, NULL, 0}
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};
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static const char opt_string[] = "+hvai:";
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static const char help_text[] =
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"mon_fsstatd: Daemon that writes file system utilization information\n"
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"to the z/VM monitor stream.\n"
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"\n"
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"Usage: mon_fstatd [OPTIONS]\n"
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"\n"
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"Options:\n"
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"-h, --help Print this help, then exit\n"
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"-v, --version Print version information, then exit\n"
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"-a, --attach Run in foreground\n"
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"-i, --interval=<seconds> Sample interval\n";
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#endif
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