libgtop/sysdeps/kernel/procdata.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */

/* $Id$ */

/* Copyright (C) 1998-99 Martin Baulig
   This file is part of LibGTop 1.0.

   Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.

   LibGTop 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 of the License,
   or (at your option) any later version.

   LibGTop 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 LibGTop; see the file COPYING. If not, write to the
   Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.
*/

#include <glibtop.h>
#include <glibtop_private.h>

int
glibtop_get_proc_data_stat_s (glibtop *server, libgtop_stat_t *stat)
{
    int name [2] = { CTL_LIBGTOP, LIBGTOP_STAT };
    size_t size = sizeof (libgtop_stat_t);

    if (sysctl (name, 2, stat, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/stat)");
	return -1;
    }

    return 0;
}

int
glibtop_get_proc_data_mem_s (glibtop *server, libgtop_mem_t *mem)
{
    int name [2] = { CTL_LIBGTOP, LIBGTOP_MEM };
    size_t size = sizeof (libgtop_mem_t);

    if (sysctl (name, 2, mem, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/mem)");
	return -1;
    }

    return 0;
}

int
glibtop_get_proc_data_swap_s (glibtop *server, libgtop_swap_t *swap)
{
    int name [2] = { CTL_LIBGTOP, LIBGTOP_SWAP };
    size_t size = sizeof (libgtop_swap_t);

    if (sysctl (name, 2, swap, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/swap)");
	return -1;
    }

    return 0;
}

int
glibtop_get_proc_data_proclist_s (glibtop *server,
				  libgtop_proclist_t *proclist,
				  u_int64_t which, u_int64_t arg)
{
    int name [4] = { CTL_LIBGTOP, LIBGTOP_PROCLIST, which, arg };
    size_t size = sizeof (libgtop_proclist_t);

    if (sysctl (name, 4, proclist, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/proclist)");
	return -1;
    }

    return 0;

}

int
glibtop_get_proc_data_proc_state_s (glibtop *server,
				    libgtop_proc_state_t *proc_state,
				    pid_t pid)
{
    int name [3] = { CTL_LIBGTOP, LIBGTOP_PROC_STATE, pid };
    size_t size = sizeof (libgtop_proc_state_t);

    if (sysctl (name, 3, proc_state, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else if (errno == ESRCH)
	    return -GLIBTOP_ERROR_NO_SUCH_PROCESS;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/proc_state)");
	return -1;
    }

    return 0;
}

int
glibtop_get_proc_data_proc_mem_s (glibtop *server,
				  libgtop_proc_mem_t *proc_mem,
				  pid_t pid)
{
    int name [3] = { CTL_LIBGTOP, LIBGTOP_PROC_MEM, pid };
    size_t size = sizeof (libgtop_proc_mem_t);

    if (sysctl (name, 3, proc_mem, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else if (errno == ESRCH)
	    return -GLIBTOP_ERROR_NO_SUCH_PROCESS;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/proc_mem)");
	return -1;
    }

    return 0;
}

int
glibtop_get_proc_data_proc_signal_s (glibtop *server,
				     libgtop_proc_signal_t *proc_signal,
				     pid_t pid)
{
    int name [3] = { CTL_LIBGTOP, LIBGTOP_PROC_SIGNAL, pid };
    size_t size = sizeof (libgtop_proc_signal_t);

    if (sysctl (name, 3, proc_signal, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else if (errno == ESRCH)
	    return -GLIBTOP_ERROR_NO_SUCH_PROCESS;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/proc_signal)");
	return -1;
    }

    return 0;
}

int
glibtop_get_proc_data_proc_kernel_s (glibtop *server,
				     libgtop_proc_kernel_t *proc_kernel,
				     pid_t pid)
{
    int name [3] = { CTL_LIBGTOP, LIBGTOP_PROC_KERNEL, pid };
    size_t size = sizeof (libgtop_proc_kernel_t);

    if (sysctl (name, 3, proc_kernel, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else if (errno == ESRCH)
	    return -GLIBTOP_ERROR_NO_SUCH_PROCESS;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/proc_kernel)");
	return -1;
    }

    return 0;
}

int
glibtop_get_proc_data_proc_args_s (glibtop *server, pid_t pid,
				   char *result, size_t max_len)
{
    int name [3] = { CTL_LIBGTOP, LIBGTOP_PROC_ARGS, pid };
    size_t size = max_len;

    if (sysctl (name, 3, result, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else if (errno == ESRCH)
	    return -GLIBTOP_ERROR_NO_SUCH_PROCESS;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/proc_args)");
	return -1;
    }

    return size;
}

int
glibtop_get_proc_data_proc_maps_s (glibtop *server, pid_t pid,
				   libgtop_proc_maps_t *result,
				   size_t max_len)
{
    int name [3] = { CTL_LIBGTOP, LIBGTOP_PROC_MAPS, pid };
    size_t size = max_len;

    if (sysctl (name, 3, result, &size, NULL, 0)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else if (errno == ESRCH)
	    return -GLIBTOP_ERROR_NO_SUCH_PROCESS;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/proc_maps)");
	return -1;
    }

    return size;
}

int
glibtop_get_proc_data_netload_s (glibtop *server,
				 libgtop_netload_t *netload,
				 const char *device)
{
    int name [2] = { CTL_LIBGTOP, LIBGTOP_NETLOAD };
    size_t size = sizeof (libgtop_netload_t);

    if (sysctl (name, 2, netload, &size, (char *) device, strlen (device)+1)) {
	if (errno == ENOTDIR)
	    return -GLIBTOP_ERROR_NO_KERNEL_SUPPORT;
	else
	    glibtop_warn_io_r (server, "sysctl (libgtop/netload)");
	return -1;
    }

    return 0;
}