From 2a41aa7d02a8ba38e219195d0bfa0df9234c09da Mon Sep 17 00:00:00 2001 From: Miles Bader Date: Tue, 23 Jan 1996 21:43:54 +0000 Subject: Initial revision --- utils/psout.c | 118 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+) create mode 100644 utils/psout.c (limited to 'utils') diff --git a/utils/psout.c b/utils/psout.c new file mode 100644 index 00000000..46a1dd27 --- /dev/null +++ b/utils/psout.c @@ -0,0 +1,118 @@ +/* Common output function for ps & w + + Copyright (C) 1995 Free Software Foundation, Inc. + + Written by Miles Bader + + This program is free software; you can redistribute it and/or + modify it under the terms of the GNU General Public License as + published by the Free Software Foundation; either version 2, or (at + your option) any later version. + + This program is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ + +#include +#include +#include +#include +#include +#include +#include + +void +psout (struct proc_stat_list *procs, char *fmt_string, ps_fmt_specs_t specs, + char *sort_key_name, int sort_reverse, + int output_width, int print_heading, + int squash_bogus_fields, int squash_nominal_fields) +{ + error_t err; + ps_stream_t output; + ps_fmt_t fmt; + + err = ps_fmt_create (fmt_string, specs, &fmt); + if (err) + error (4, err, "Can't create output format"); + + if (squash_bogus_fields) + /* Remove any fields that we can't print anyway (because of system + bugs/protection violations?). */ + { + ps_flags_t bogus_flags = ps_fmt_needs (fmt); + + err = proc_stat_list_find_bogus_flags (procs, &bogus_flags); + if (err) + error (0, err, "Couldn't remove bogus fields"); + else + ps_fmt_squash_flags (fmt, bogus_flags); + } + + if (squash_nominal_fields) + /* Remove any fields that contain only `uninteresting' information. */ + { + bool nominal (ps_fmt_spec_t spec) + { + return proc_stat_list_spec_nominal (procs, spec); + } + ps_fmt_squash (fmt, nominal); + } + + if (sort_key_name) + /* Sort on the given field. */ + { + ps_fmt_spec_t sort_key; + + if (*sort_key_name == '-') + /* Sort in reverse. */ + { + sort_reverse = 1; + sort_key_name++; + } + + sort_key = ps_fmt_specs_find (specs, sort_key_name); + if (sort_key == NULL) + error (3, 0, "%s: bad sort key", sort_key_name); + + err = proc_stat_list_sort (procs, sort_key, sort_reverse); + if (err) + /* Give an error message, but don't exit. */ + error (0, err, "Couldn't sort processes"); + } + + err = ps_stream_create (stdout, &output); + if (err) + 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 (output_width) + /* Try and restrict the number of output columns. */ + { + int deduce_term_size (int fd, char *type, int *width, int *height); + if (output_width < 0) + /* Have to figure it out! */ + if (! deduce_term_size (1, getenv ("TERM"), &output_width, 0)) + output_width = 80; /* common default */ + ps_fmt_set_output_width (fmt, output_width); + } + + /* Finally, output all the processes! */ + err = proc_stat_list_fmt (procs, fmt, output); + if (err) + error (5, err, "Couldn't output process status"); +} -- cgit v1.2.3