usr/src/usr.bin/window/cmd2.c

#ifndef lint
static  char *sccsid = "@(#)cmd2.c      3.6 83/08/16";
#endif

#include "defs.h"

struct ww *openiwin();

c_help()
{
        register struct ww *w;

        if ((w = openiwin(wwnrow - 3, "Help")) == 0) {
                error("Can't open help window.");
                return;
        }
        (void) wwprintf(w, "The escape character is %s, which gets you into command mode.\n\n",
                unctrl(escapec));
        (void) wwprintf(w, "Short commands:\n\n");
        (void) wwprintf(w, "{1-9}   Select window {1-9} and return to conversation mode.\n");
        (void) wwprintf(w, "%%{1-9}  Select window {1-9}.\n");
        (void) wwprintf(w, "c{1-9}  Close window {1-9}.\n");
        (void) wwprintf(w, "C       Close all windows.\n");
        (void) wwprintf(w, "S       Show all windows in sequence.\n");
        (void) wwprintf(w, "L       List all windows with their labels.\n");
        (void) wwprintf(w, "w       Open a new window.\n");
        (void) wwprintf(w, "[^U^D]  Scroll [up, down] half a window.\n");
        (void) wwprintf(w, "[^B^F]  Scroll [up, down] a full window.\n");
        (void) wwprintf(w, "[hjkl]  Move cursor [left, down, up, right].\n");
        (void) wwprintf(w, "escape  Exit command mode.\n");
        (void) wwprintf(w, "^L      Redraw screen.\n");
        (void) wwprintf(w, "^Z      Suspend.\n");
        (void) wwprintf(w, ".       Quit.\n");
        waitnl(w);
        (void) wwprintf(w, "Long commands:\n\n");
        (void) wwprintf(w, ":terse [off]            Turn on (or off) terse mode.\n");
        (void) wwprintf(w, ":refresh {1-9} [off]    Turn on (or off) refresh after every newline\n");
        (void) wwprintf(w, "                        for window {1-9}.\n");
        (void) wwprintf(w, ":label {1-9} string     Label window {1-9}.\n");
        (void) wwprintf(w, ":escape C               Set escape character to C.\n");
        (void) wwprintf(w, ":%%{1-9}                 Select window {1-9}.\n");
        (void) wwprintf(w, ":window r c nr nc       Open a window at row r column c\n");
        (void) wwprintf(w, "                        with nr rows and nc colomns\n");
        (void) wwprintf(w, ":source filename        Execute the commands in `filename'.\n");
        waitnl(w);
        closeiwin(w);
}

char *strtime();

c_time(flag)
{
        register struct ww *w;
        struct rusage rusage;
        struct timeval timeval;
        struct timezone timezone;

        if ((w = openiwin(6, "Timing and Resource Usage")) == 0) {
                error("Can't open time window.");
                return;
        }

        (void) gettimeofday(&timeval, &timezone);
        timeval.tv_sec -= starttime.tv_sec;
        if ((timeval.tv_usec -= starttime.tv_usec) < 0) {
                timeval.tv_sec--;
                timeval.tv_usec += 1000000;
        }
        (void) getrusage(flag, &rusage);

        (void) wwprintf(w, "time\t\tutime\t\tstime\t\tmaxrss\tixrss\tidrss\tisrss\n");
        (void) wwprintf(w, "%-16s", strtime(&timeval));
        (void) wwprintf(w, "%-16s", strtime(&rusage.ru_utime));
        (void) wwprintf(w, "%-16s", strtime(&rusage.ru_stime));
        (void) wwprintf(w, "%D\t%D\t%D\t%D\n",
                rusage.ru_maxrss, rusage.ru_ixrss,
                rusage.ru_idrss, rusage.ru_isrss);
        (void) wwprintf(w, "minflt\tmajflt\tnswap\tinblk\toublk\tmsgsnd\tmsgrcv\tnsigs\tnvcsw\tnivcsw\n");
        (void) wwprintf(w, "%D\t%D\t%D\t%D\t%D\t%D\t%D\t%D\t%D\t%D\n",
                rusage.ru_minflt, rusage.ru_majflt, rusage.ru_nswap,
                rusage.ru_inblock, rusage.ru_oublock,
                rusage.ru_msgsnd, rusage.ru_msgrcv, rusage.ru_nsignals,
                rusage.ru_nvcsw, rusage.ru_nivcsw);

        waitnl(w);
        closeiwin(w);
}

char *
strtime(t)
register struct timeval *t;
{
        char fill = 0;
        static char buf[20];
        register char *p = buf;

        if (t->tv_sec > 60*60) {
                (void) sprintf(p, "%D:", t->tv_sec / (60*60));
                while (*p++)
                        ;
                p--;
                t->tv_sec %= 60*60;
                fill++;
        }
        if (t->tv_sec > 60) {
                (void) sprintf(p, fill ? "%02D:" : "%D:", t->tv_sec / 60);
                while (*p++)
                        ;
                p--;
                t->tv_sec %= 60;
                fill++;
        }
        (void) sprintf(p, fill ? "%02D.%02d" : "%D.%02D",
                t->tv_sec, t->tv_usec / 10000);
        return buf;
}

c_stat()
{
        register struct ww *w;

        if ((w = openiwin(4, "IO Statics")) == 0) {
                error("Can't open statistics window.");
                return;
        }
        (void) wwprintf(w, "nread\tnreadz\tnreade\tnreadc\tnwrite\tnwritec\tnupdate\tntouchd\tnmiss\n");
        (void) wwprintf(w, "%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\t%d\n",
                nread, nreadz, nreade, nreadc, wwnwrite, wwnwritec,
                wwnupdate, wwntouched, wwnmiss);
        waitnl(w);
        closeiwin(w);
}

c_list()
{
        register struct ww *w;
        register i;
        int n;

        for (n = 0, i = 0; i < NWINDOW; i++)
                if (window[i] != 0)
                        n++;
        if ((w = openiwin(MAX(n, 1) + 2, "Active Windows")) == 0) {
                error("Can't open listing window.");
                return;
        }
        if (n == 0) {
                (void) wwputs("No windows.\n", w);
        } else {
                for (i = 0; i < NWINDOW; i++) {
                        if (window[i] == 0)
                                continue;
                        (void) wwprintf(w, "%c   %s\n", i + '1',
                                window[i]->ww_label ? window[i]->ww_label
                                        : "(No label)");
                }
        }
        waitnl(w);
        closeiwin(w);
}

c_quit()
{
        if (terse)
                wwadd(cmdwin, &wwhead);
        (void) wwputs("Really quit [yn]? ", cmdwin);
        wwcurtowin(cmdwin);
        while (bpeekc() < 0)
                bread();
        if (bgetc() == 'y') {
                (void) wwputs("Yes", cmdwin);
                quit++;
        } else
                (void) wwputs("\r\n", cmdwin);
        if (terse && !quit)
                wwdelete(cmdwin);
}

/*
 * Open an information window.
 */
struct ww *
openiwin(nrow, label)
char *label;
{
        register struct ww *w;

        if ((w = wwopen(0, nrow, wwncol, 2, 0, 0)) == 0)
                return 0;
        w->ww_mapnl = 1;
        w->ww_hasframe = 1;
        w->ww_id = -1;
        w->ww_center = 1;
        (void) setlabel(w, label);
        wwadd(w, framewin);
        reframe();
        return w;
}

waitnl(w)
register struct ww *w;
{
        if (w->ww_back != framewin) {
                (void) wwputs("reframed", w);
                wwdelete(w);
                wwadd(w, framewin);
                reframe();
        }
        (void) wwputs("\nType return to continue: ", w);
        wwcurtowin(w);
        while (bgetc() < 0)
                bread();
        (void) wwputs("\033E", w);              /* clear and home cursor */
}

closeiwin(w)
struct ww *w;
{
        closewin(w);
        reframe();
}