c60d1d5449
1998-06-13 Martin Baulig <martin@home-of-linux.org> The code in this directory fetches all information directly from the kernel. It uses the new table () system call from the `kernel' directory.
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/* $Id$ */
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/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the Gnome Top Library.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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The Gnome Top Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The Gnome Top Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <glibtop.h>
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#include <glibtop/error.h>
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#include <glibtop/procstate.h>
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#include "kernel.h"
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static const unsigned long _glibtop_sysdeps_proc_state =
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(1 << GLIBTOP_PROC_STATE_CMD) + (1 << GLIBTOP_PROC_STATE_STATE);
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/* Provides detailed information about a process. */
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#define NR_STATES 7
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void
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glibtop_get_proc_state_s (glibtop *server, glibtop_proc_state *buf, pid_t pid)
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{
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union table tbl;
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static const char states [NR_STATES] = { 'R', 'S', 'D', 'Z', 'T', 'W', '.' };
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unsigned state;
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glibtop_init_r (&server, 0, 0);
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memset (buf, 0, sizeof (glibtop_proc_state));
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if (pid == 0) {
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/* Client is only interested in the flags. */
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buf->flags = _glibtop_sysdeps_proc_state;
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return;
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}
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if (table (TABLE_PROC_STATE, &tbl, &pid))
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glibtop_error_r (server, "table(TABLE_PROC_STATE): %s\n", strerror (errno));
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buf->flags = _glibtop_sysdeps_proc_state;
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memcpy (buf->cmd, tbl.proc_state.comm, sizeof (tbl.proc_state.comm));
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state = (unsigned) tbl.proc_state.state;
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if (state >= NR_STATES)
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state = NR_STATES;
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buf->state = states [state];
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}
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