3185f0f02b
curses and libedit don't play well together. After last year's libedit upgrade in head, they play even less well together. This change resets some curses settings after they get screwed up by libedit calls. Without it, gstat's interactive commands require an extra "enter", screw up the terminal on exit, and screw up the display if the user enters an invalid filter string. PR: 204852 Submitted by: Keith White Reviewed by: pfg Approved by: re (gjb) MFC after: 4 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D6934
459 lines
11 KiB
C
459 lines
11 KiB
C
/*-
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* Copyright (c) 2003 Poul-Henning Kamp
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#include <sys/devicestat.h>
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#include <sys/mman.h>
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#include <sys/resource.h>
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#include <sys/time.h>
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#include <curses.h>
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#include <devstat.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <histedit.h>
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#include <libgeom.h>
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#include <paths.h>
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#include <regex.h>
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#include <stdint.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 <sysexits.h>
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#include <unistd.h>
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static int flag_a, flag_b, flag_c, flag_d, flag_o, flag_p;
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static int flag_I = 1000000;
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#define PRINTMSG(...) do { \
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if (flag_b && !loop) \
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printf(__VA_ARGS__); \
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else if (!flag_b) \
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printw(__VA_ARGS__); \
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} while(0)
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static void usage(void);
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static const char*
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el_prompt(void)
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{
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return ("Filter: ");
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}
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int
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main(int argc, char **argv)
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{
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int error, i, quit;
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int curx, cury, maxx, maxy, line_len, loop, max_flen;
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struct devstat *gsp, *gsq;
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void *sp, *sq;
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double dt;
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struct timespec tp, tq;
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struct gmesh gmp;
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struct gprovider *pp;
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struct gconsumer *cp;
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struct gident *gid;
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regex_t f_re, tmp_f_re;
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short cf, cb;
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char *p;
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char f_s[100], pf_s[100], tmp_f_s[100];
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const char *line;
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long double ld[13];
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uint64_t u64;
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EditLine *el;
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History *hist;
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HistEvent hist_ev;
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hist = NULL;
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el = NULL;
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maxx = -1;
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curx = -1;
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loop = 1;
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/* Turn on batch mode if output is not tty. */
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if (!isatty(fileno(stdout)))
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flag_b = 1;
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f_s[0] = '\0';
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while ((i = getopt(argc, argv, "abdcf:I:op")) != -1) {
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switch (i) {
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case 'a':
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flag_a = 1;
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break;
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case 'b':
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flag_b = 1;
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break;
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case 'c':
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flag_c = 1;
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break;
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case 'd':
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flag_d = 1;
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break;
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case 'f':
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if (strlen(optarg) > sizeof(f_s) - 1)
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errx(EX_USAGE, "Filter string too long");
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if (regcomp(&f_re, optarg, REG_EXTENDED) != 0)
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errx(EX_USAGE,
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"Invalid filter - see re_format(7)");
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strlcpy(f_s, optarg, sizeof(f_s));
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break;
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case 'o':
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flag_o = 1;
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break;
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case 'I':
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p = NULL;
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i = strtoul(optarg, &p, 0);
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if (p == optarg || errno == EINVAL ||
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errno == ERANGE) {
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errx(1, "Invalid argument to -I");
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} else if (!strcmp(p, "s"))
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i *= 1000000;
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else if (!strcmp(p, "ms"))
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i *= 1000;
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else if (!strcmp(p, "us"))
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i *= 1;
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flag_I = i;
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break;
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case 'p':
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flag_p = 1;
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break;
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case '?':
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 0)
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usage();
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i = geom_gettree(&gmp);
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if (i != 0)
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err(1, "geom_gettree = %d", i);
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error = geom_stats_open();
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if (error)
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err(1, "geom_stats_open()");
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sq = NULL;
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sq = geom_stats_snapshot_get();
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if (sq == NULL)
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err(1, "geom_stats_snapshot()");
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if (!flag_b) {
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/* Setup libedit */
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hist = history_init();
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if (hist == NULL)
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err(EX_SOFTWARE, "history_init()");
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history(hist, &hist_ev, H_SETSIZE, 100);
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el = el_init("gstat", stdin, stdout, stderr);
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if (el == NULL)
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err(EX_SOFTWARE, "el_init");
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el_set(el, EL_EDITOR, "emacs");
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el_set(el, EL_SIGNAL, 1);
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el_set(el, EL_HIST, history, hist);
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el_set(el, EL_PROMPT, el_prompt);
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if (f_s[0] != '\0')
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history(hist, &hist_ev, H_ENTER, f_s);
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/* Setup curses */
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initscr();
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start_color();
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use_default_colors();
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pair_content(0, &cf, &cb);
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init_pair(1, COLOR_GREEN, cb);
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init_pair(2, COLOR_MAGENTA, cb);
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init_pair(3, COLOR_RED, cb);
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cbreak();
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noecho();
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nonl();
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nodelay(stdscr, 1);
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intrflush(stdscr, FALSE);
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keypad(stdscr, TRUE);
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}
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geom_stats_snapshot_timestamp(sq, &tq);
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for (quit = 0; !quit;) {
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sp = geom_stats_snapshot_get();
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if (sp == NULL)
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err(1, "geom_stats_snapshot()");
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geom_stats_snapshot_timestamp(sp, &tp);
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dt = tp.tv_sec - tq.tv_sec;
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dt += (tp.tv_nsec - tq.tv_nsec) * 1e-9;
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tq = tp;
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geom_stats_snapshot_reset(sp);
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geom_stats_snapshot_reset(sq);
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move(0,0);
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PRINTMSG("dT: %5.3fs w: %.3fs", dt, (float)flag_I / 1000000);
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if (f_s[0] != '\0') {
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PRINTMSG(" filter: ");
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if (!flag_b) {
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getyx(stdscr, cury, curx);
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getmaxyx(stdscr, maxy, maxx);
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}
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strlcpy(pf_s, f_s, sizeof(pf_s));
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max_flen = maxx - curx - 1;
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if ((int)strlen(f_s) > max_flen && max_flen >= 0) {
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if (max_flen > 3)
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pf_s[max_flen - 3] = '.';
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if (max_flen > 2)
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pf_s[max_flen - 2] = '.';
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if (max_flen > 1)
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pf_s[max_flen - 1] = '.';
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pf_s[max_flen] = '\0';
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}
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PRINTMSG("%s", pf_s);
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}
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PRINTMSG("\n");
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PRINTMSG(" L(q) ops/s ");
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PRINTMSG(" r/s kBps ms/r ");
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PRINTMSG(" w/s kBps ms/w ");
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if (flag_d)
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PRINTMSG(" d/s kBps ms/d ");
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if (flag_o)
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PRINTMSG(" o/s ms/o ");
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PRINTMSG("%%busy Name\n");
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for (;;) {
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gsp = geom_stats_snapshot_next(sp);
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gsq = geom_stats_snapshot_next(sq);
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if (gsp == NULL || gsq == NULL)
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break;
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if (gsp->id == NULL)
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continue;
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gid = geom_lookupid(&gmp, gsp->id);
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if (gid == NULL) {
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geom_deletetree(&gmp);
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i = geom_gettree(&gmp);
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if (i != 0)
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err(1, "geom_gettree = %d", i);
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gid = geom_lookupid(&gmp, gsp->id);
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}
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if (gid == NULL)
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continue;
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if (gid->lg_what == ISCONSUMER && !flag_c)
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continue;
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if (flag_p && gid->lg_what == ISPROVIDER &&
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((struct gprovider *)(gid->lg_ptr))->lg_geom->lg_rank != 1)
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continue;
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/* Do not print past end of window */
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if (!flag_b) {
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getyx(stdscr, cury, curx);
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if (curx > 0)
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continue;
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}
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if ((gid->lg_what == ISPROVIDER
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|| gid->lg_what == ISCONSUMER) && f_s[0] != '\0') {
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pp = gid->lg_ptr;
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if ((regexec(&f_re, pp->lg_name, 0, NULL, 0)
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!= 0))
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continue;
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}
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if (gsp->sequence0 != gsp->sequence1) {
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PRINTMSG("*\n");
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continue;
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}
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devstat_compute_statistics(gsp, gsq, dt,
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DSM_QUEUE_LENGTH, &u64,
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DSM_TRANSFERS_PER_SECOND, &ld[0],
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DSM_TRANSFERS_PER_SECOND_READ, &ld[1],
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DSM_MB_PER_SECOND_READ, &ld[2],
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DSM_MS_PER_TRANSACTION_READ, &ld[3],
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DSM_TRANSFERS_PER_SECOND_WRITE, &ld[4],
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DSM_MB_PER_SECOND_WRITE, &ld[5],
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DSM_MS_PER_TRANSACTION_WRITE, &ld[6],
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DSM_BUSY_PCT, &ld[7],
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DSM_TRANSFERS_PER_SECOND_FREE, &ld[8],
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DSM_MB_PER_SECOND_FREE, &ld[9],
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DSM_MS_PER_TRANSACTION_FREE, &ld[10],
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DSM_TRANSFERS_PER_SECOND_OTHER, &ld[11],
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DSM_MS_PER_TRANSACTION_OTHER, &ld[12],
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DSM_NONE);
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if (flag_a && ld[7] < 0.1) {
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*gsq = *gsp;
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continue;
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}
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PRINTMSG(" %4ju", (uintmax_t)u64);
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PRINTMSG(" %6.0f", (double)ld[0]);
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PRINTMSG(" %6.0f", (double)ld[1]);
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PRINTMSG(" %6.0f", (double)ld[2] * 1024);
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if (ld[3] > 1e3)
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PRINTMSG(" %6.0f", (double)ld[3]);
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else
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PRINTMSG(" %6.1f", (double)ld[3]);
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PRINTMSG(" %6.0f", (double)ld[4]);
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PRINTMSG(" %6.0f", (double)ld[5] * 1024);
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if (ld[6] > 1e3)
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PRINTMSG(" %6.0f", (double)ld[6]);
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else
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PRINTMSG(" %6.1f", (double)ld[6]);
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if (flag_d) {
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PRINTMSG(" %6.0f", (double)ld[8]);
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PRINTMSG(" %6.0f", (double)ld[9] * 1024);
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if (ld[10] > 1e3)
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PRINTMSG(" %6.0f", (double)ld[10]);
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else
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PRINTMSG(" %6.1f", (double)ld[10]);
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}
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if (flag_o) {
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PRINTMSG(" %6.0f", (double)ld[11]);
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if (ld[12] > 1e3)
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PRINTMSG(" %6.0f", (double)ld[12]);
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else
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PRINTMSG(" %6.1f", (double)ld[12]);
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}
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if (ld[7] > 80)
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i = 3;
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else if (ld[7] > 50)
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i = 2;
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else
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i = 1;
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if (!flag_b)
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attron(COLOR_PAIR(i));
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PRINTMSG(" %6.1lf", (double)ld[7]);
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if (!flag_b) {
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attroff(COLOR_PAIR(i));
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PRINTMSG("|");
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} else
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PRINTMSG(" ");
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if (gid == NULL) {
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PRINTMSG(" ??");
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} else if (gid->lg_what == ISPROVIDER) {
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pp = gid->lg_ptr;
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PRINTMSG(" %s", pp->lg_name);
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} else if (gid->lg_what == ISCONSUMER) {
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cp = gid->lg_ptr;
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PRINTMSG(" %s/%s/%s",
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cp->lg_geom->lg_class->lg_name,
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cp->lg_geom->lg_name,
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cp->lg_provider->lg_name);
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}
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if (!flag_b)
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clrtoeol();
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PRINTMSG("\n");
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*gsq = *gsp;
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}
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geom_stats_snapshot_free(sp);
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if (flag_b) {
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/* We loop extra to make sure we get the information. */
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if (!loop)
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break;
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loop = 0;
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usleep(flag_I);
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continue;
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}
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getyx(stdscr, cury, curx);
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getmaxyx(stdscr, maxy, maxx);
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clrtobot();
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if (maxy - 1 <= cury)
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move(maxy - 1, 0);
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refresh();
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usleep(flag_I);
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while((i = getch()) != ERR) {
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switch (i) {
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case '>':
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flag_I *= 2;
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break;
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case '<':
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flag_I /= 2;
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if (flag_I < 1000)
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flag_I = 1000;
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break;
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case 'c':
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flag_c = !flag_c;
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break;
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case 'f':
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move(0,0);
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clrtoeol();
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refresh();
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line = el_gets(el, &line_len);
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if (line == NULL)
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err(1, "el_gets");
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if (line_len > 1)
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history(hist, &hist_ev, H_ENTER, line);
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strlcpy(tmp_f_s, line, sizeof(f_s));
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if ((p = strchr(tmp_f_s, '\n')) != NULL)
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*p = '\0';
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/*
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* Fix the terminal. We messed up
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* curses idea of the screen by using
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* libedit.
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*/
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clear();
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refresh();
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cbreak();
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noecho();
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nonl();
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if (regcomp(&tmp_f_re, tmp_f_s, REG_EXTENDED)
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!= 0) {
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move(0, 0);
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printw("Invalid filter");
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refresh();
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sleep(1);
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} else {
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strlcpy(f_s, tmp_f_s, sizeof(f_s));
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f_re = tmp_f_re;
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}
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break;
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case 'F':
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f_s[0] = '\0';
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break;
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case 'q':
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quit = 1;
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break;
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default:
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break;
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}
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}
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}
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if (!flag_b) {
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el_end(el);
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endwin();
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}
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exit(EX_OK);
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}
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static void
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usage(void)
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{
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fprintf(stderr, "usage: gstat [-abcdp] [-f filter] [-I interval]\n");
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exit(EX_USAGE);
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/* NOTREACHED */
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}
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