diff options
Diffstat (limited to 'utils/psout.c')
| -rw-r--r-- | utils/psout.c | 42 |
1 files changed, 31 insertions, 11 deletions
diff --git a/utils/psout.c b/utils/psout.c index 7f2b0591..93667b28 100644 --- a/utils/psout.c +++ b/utils/psout.c @@ -1,6 +1,6 @@ /* Common output function for ps & w - Copyright (C) 1995, 1996 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1998 Free Software Foundation, Inc. Written by Miles Bader <miles@gnu.ai.mit.edu> @@ -31,7 +31,8 @@ psout (struct proc_stat_list *procs, char *fmt_string, int posix_fmt, struct ps_fmt_specs *specs, char *sort_key_name, int sort_reverse, int output_width, int print_heading, - int squash_bogus_fields, int squash_nominal_fields) + int squash_bogus_fields, int squash_nominal_fields, + int top) { error_t err; struct ps_stream *output; @@ -96,15 +97,17 @@ psout (struct proc_stat_list *procs, error (5, err, "Can't make output stream"); if (print_heading) - if (proc_stat_list_num_procs (procs) > 0) - { - err = ps_fmt_write_titles (fmt, output); - if (err) - error (0, err, "Can't print titles"); - ps_stream_newline (output); - } - else - error (0, 0, "No applicable processes"); + { + if (procs->num_procs > 0) + { + err = ps_fmt_write_titles (fmt, output); + if (err) + error (0, err, "Can't print titles"); + ps_stream_newline (output); + } + else + error (1, 0, "No applicable processes"); + } if (output_width) /* Try and restrict the number of output columns. */ @@ -117,6 +120,23 @@ psout (struct proc_stat_list *procs, ps_fmt_set_output_width (fmt, output_width); } + if (top) + /* Restrict output to the top TOP entries, if TOP is positive, or the + bottom -TOP entries, if it is negative. */ + { + int filter (struct proc_stat *ps) + { + return --top >= 0; + } + if (top < 0) + { + top += procs->num_procs; + proc_stat_list_filter1 (procs, filter, 0, 1); + } + else + proc_stat_list_filter1 (procs, filter, 0, 0); + } + /* Finally, output all the processes! */ err = proc_stat_list_fmt (procs, fmt, output); if (err) |