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refined library i/f and improved performance

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Library changes
   readproc
    . added readeither to more efficiently
      fill both process and thread proc_t
    . added readproctab3, uses readeither
    . included task path support in:
        fill_cgroup_cvt, fill_cmdline_cvt,
        read_unvectored
    . QUICK_THREADS #define allows copying
      process info vs. repeatedly reading
    . simple_nexttid no longer values ppid
    . path var made non-static in readtask
    . documented 'proc_data_t' in .h file
    . tweaked some c comments & formatting
   library.map
    . added new readeither, readproctab3
 Program changes
   ps
    . exploits readproctab3 where possible
    . improved args/comm compliance
   top
    . exploits readeither
This commit is contained in:
Craig Small
2011-08-11 07:42:14 +10:00
parent 3ef4823f90
commit bb4f08ba29
6 changed files with 292 additions and 170 deletions
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45
ps/output.c
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@ -334,8 +334,8 @@ Modifications to the arguments are not shown.
/*
* "args", "cmd", "command" are all the same: long unless c
* "comm", "ucmd", "ucomm" are all the same: short unless -f
* ( determinations are made in display.c, we just deal with results ) */
static int pr_argcom(char *restrict const outbuf, const proc_t *restrict const pp){
* ( determinations are made in display.c, we mostly deal with results ) */
static int pr_args(char *restrict const outbuf, const proc_t *restrict const pp){
char *endp = outbuf;
unsigned flags;
int rightward=max_rightward;
@ -345,7 +345,33 @@ static int pr_argcom(char *restrict const outbuf, const proc_t *restrict const p
endp += fh;
rightward -= fh;
}
if(pp->cmdline)
if(pp->cmdline && !bsd_c_option)
endp += escaped_copy(endp, *pp->cmdline, OUTBUF_SIZE, &rightward);
else
endp += escape_command(endp, pp, OUTBUF_SIZE, &rightward, ESC_DEFUNCT);
if(bsd_e_option && rightward>1) {
if(pp->environ && *pp->environ)
endp += escape_strlist(endp, pp->environ, OUTBUF_SIZE, &rightward);
}
return max_rightward-rightward;
}
/*
* "args", "cmd", "command" are all the same: long unless c
* "comm", "ucmd", "ucomm" are all the same: short unless -f
* ( determinations are made in display.c, we mostly deal with results ) */
static int pr_comm(char *restrict const outbuf, const proc_t *restrict const pp){
char *endp = outbuf;
unsigned flags;
int rightward=max_rightward;
if(forest_prefix){
int fh = forest_helper(outbuf);
endp += fh;
rightward -= fh;
}
if(pp->cmdline && unix_f_option)
endp += escaped_copy(endp, *pp->cmdline, OUTBUF_SIZE, &rightward);
else
endp += escape_command(endp, pp, OUTBUF_SIZE, &rightward, ESC_DEFUNCT);
@ -354,7 +380,6 @@ static int pr_argcom(char *restrict const outbuf, const proc_t *restrict const p
if(pp->environ && *pp->environ)
endp += escape_strlist(endp, pp->environ, OUTBUF_SIZE, &rightward);
}
//return endp - outbuf;
return max_rightward-rightward;
}
@ -1283,7 +1308,7 @@ static const format_struct format_array[] = {
{"addr_1", "ADDR", pr_nop, sr_nop, 1, 0, LNX, AN|LEFT},
{"alarm", "ALARM", pr_alarm, sr_alarm, 5, 0, LNX, AN|RIGHT},
{"argc", "ARGC", pr_nop, sr_nop, 4, 0, LNX, PO|RIGHT},
{"args", "COMMAND", pr_argcom, sr_cmd, 27, ARG, U98, PO|UNLIMITED}, /*command*/
{"args", "COMMAND", pr_args, sr_cmd, 27, ARG, U98, PO|UNLIMITED}, /*command*/
{"atime", "TIME", pr_time, sr_nop, 8, 0, SOE, ET|RIGHT}, /*cputime*/ /* was 6 wide */
{"blocked", "BLOCKED", pr_sigmask, sr_nop, 9, 0, BSD, TO|SIGNAL}, /*sigmask*/
{"bnd", "BND", pr_nop, sr_nop, 1, 0, AIX, TO|RIGHT},
@ -1295,11 +1320,11 @@ static const format_struct format_array[] = {
{"class", "CLS", pr_class, sr_sched, 3, 0, XXX, TO|LEFT},
{"cls", "CLS", pr_class, sr_sched, 3, 0, HPU, TO|RIGHT}, /*says HPUX or RT*/
{"cmaj_flt", "-", pr_nop, sr_cmaj_flt, 1, 0, LNX, AN|RIGHT},
{"cmd", "CMD", pr_argcom, sr_cmd, 27, ARG, DEC, PO|UNLIMITED}, /*ucomm*/
{"cmd", "CMD", pr_args, sr_cmd, 27, ARG, DEC, PO|UNLIMITED}, /*ucomm*/
{"cmin_flt", "-", pr_nop, sr_cmin_flt, 1, 0, LNX, AN|RIGHT},
{"cnswap", "-", pr_nop, sr_nop, 1, 0, LNX, AN|RIGHT},
{"comm", "COMMAND", pr_argcom, sr_cmd, 15, COM, U98, PO|UNLIMITED}, /*ucomm*/
{"command", "COMMAND", pr_argcom, sr_cmd, 27, ARG, XXX, PO|UNLIMITED}, /*args*/
{"comm", "COMMAND", pr_comm, sr_cmd, 15, COM, U98, PO|UNLIMITED}, /*ucomm*/
{"command", "COMMAND", pr_args, sr_cmd, 27, ARG, XXX, PO|UNLIMITED}, /*args*/
{"context", "CONTEXT", pr_context, sr_nop, 31, 0, LNX, ET|LEFT},
{"cp", "CP", pr_cp, sr_pcpu, 3, 0, DEC, ET|RIGHT}, /*cpu*/
{"cpu", "CPU", pr_nop, sr_nop, 3, 0, BSD, AN|RIGHT}, /* FIXME ... HP-UX wants this as the CPU number for SMP? */
@ -1481,8 +1506,8 @@ static const format_struct format_array[] = {
{"tty4", "TTY", pr_tty4, sr_tty, 4, 0, LNX, PO|LEFT},
{"tty8", "TTY", pr_tty8, sr_tty, 8, 0, LNX, PO|LEFT},
{"u_procp", "UPROCP", pr_nop, sr_nop, 6, 0, DEC, AN|RIGHT},
{"ucmd", "CMD", pr_argcom, sr_cmd, 15, COM, DEC, PO|UNLIMITED}, /*ucomm*/
{"ucomm", "COMMAND", pr_argcom, sr_cmd, 15, COM, XXX, PO|UNLIMITED}, /*comm*/
{"ucmd", "CMD", pr_comm, sr_cmd, 15, COM, DEC, PO|UNLIMITED}, /*ucomm*/
{"ucomm", "COMMAND", pr_comm, sr_cmd, 15, COM, XXX, PO|UNLIMITED}, /*comm*/
{"uid", "UID", pr_euid, sr_euid, 5, 0, XXX, ET|RIGHT},
{"uid_hack", "UID", pr_euser, sr_euser, 8, USR, XXX, ET|USER},
{"umask", "UMASK", pr_nop, sr_nop, 5, 0, DEC, AN|RIGHT},