diff options
| author | Denis Vlasenko <vda.linux@googlemail.com> | 2007-06-19 14:43:17 +0000 |
|---|---|---|
| committer | Denis Vlasenko <vda.linux@googlemail.com> | 2007-06-19 14:43:17 +0000 |
| commit | 31789a81d5751acaaf373e8ede2932208161f869 (patch) | |
| tree | 8b3fe7e25ca247fc8d4e44102cef8b23a92f0354 /libbb | |
| parent | 362c6ec6941c774992abcf008459616dbce0e7af (diff) | |
| download | busybox-31789a81d5751acaaf373e8ede2932208161f869.tar.gz | |
top,ps: 'stringify' tty only when needed. -60 bytes.
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/procps.c | 24 |
1 files changed, 6 insertions, 18 deletions
diff --git a/libbb/procps.c b/libbb/procps.c index e04ff34ff..10ddabf94 100644 --- a/libbb/procps.c +++ b/libbb/procps.c @@ -225,30 +225,18 @@ procps_status_t* procps_scan(procps_status_t* sp, int flags) break; sp->vsz = vsz >> 10; /* vsize is in bytes and we want kb */ sp->rss = rss >> 10; - - sp->tty_str[0] = '?'; - /* sp->tty_str[1] = '\0'; - done by memset */ - if (tty) /* tty field of "0" means "no tty" */ - snprintf(sp->tty_str, sizeof(sp->tty_str), "%u,%u", - (tty >> 8) & 0xfff, /* major */ - (tty & 0xff) | ((tty >> 12) & 0xfff00)); + sp->tty_major = (tty >> 8) & 0xfff; + sp->tty_minor = (tty & 0xff) | ((tty >> 12) & 0xfff00)); #else /* This costs ~100 bytes more but makes top faster by 20% * If you run 10000 processes, this may be important for you */ - cp += 2; - sp->state[0] = *cp++; cp++; - sp->ppid = fast_strtoul_10(cp, &cp); + sp->state[0] = cp[2]; + sp->ppid = fast_strtoul_10(cp + 4, &cp); sp->pgid = fast_strtoul_10(cp, &cp); sp->sid = fast_strtoul_10(cp, &cp); - sp->tty_str[0] = '?'; - /* sp->tty_str[1] = '\0'; - done by memset */ tty = fast_strtoul_10(cp, &cp); - if (tty && (flags & PSSCAN_TTY)) { - /* tty field of "0" means "no tty" */ - snprintf(sp->tty_str, sizeof(sp->tty_str), "%u,%u", - (tty >> 8) & 0xfff, /* major */ - (tty & 0xff) | ((tty >> 12) & 0xfff00)); - } + sp->tty_major = (tty >> 8) & 0xfff; + sp->tty_minor = (tty & 0xff) | ((tty >> 12) & 0xfff00); cp = skip_fields(cp, 6); /* tpgid, flags, min_flt, cmin_flt, maj_flt, cmaj_flt */ sp->utime = fast_strtoul_10(cp, &cp); sp->stime = fast_strtoul_10(cp, &cp); |