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/* Copyright (C) 1998-99 Martin Baulig
This file is part of LibGTop 1.0.
Contributed by Martin Baulig <martin@home-of-linux.org>, August 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., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#include <config.h>
#include <glibtop.h>
#include <glibtop/error.h>
#include <glibtop/msg_limits.h>
#include <sys/types.h>
#include <sys/sysctl.h>
static const unsigned long _glibtop_sysdeps_msg_limits =
(1L << GLIBTOP_IPC_MSGMAX) + (1L << GLIBTOP_IPC_MSGMNI) +
(1L << GLIBTOP_IPC_MSGMNB) + (1L << GLIBTOP_IPC_MSGTQL) +
(1L << GLIBTOP_IPC_MSGSSZ) + (1L << GLIBTOP_IPC_MSGPOOL);
/* Init function. */
void
_glibtop_init_msg_limits_s (glibtop *server)
{
server->sysdeps.msg_limits = _glibtop_sysdeps_msg_limits;
}
/* Provides information about sysv ipc limits. */
void
glibtop_get_msg_limits_s (glibtop *server, glibtop_msg_limits *buf)
{
size_t len;
int msgmax, msgmni, msgmnb, msgtql, msgssz, msgseg;
glibtop_init_s (&server, GLIBTOP_SYSDEPS_MSG_LIMITS, 0);
memset (buf, 0, sizeof (glibtop_msg_limits));
if (server->sysdeps.msg_limits == 0)
return;
len = sizeof (msgseg);
if (sysctlbyname ("kern.ipc.msgseg", &msgseg, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.msgseg)");
return;
}
len = sizeof (msgssz);
if (sysctlbyname ("kern.ipc.msgssz", &msgssz, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.msgssz)");
return;
}
len = sizeof (msgtql);
if (sysctlbyname ("kern.ipc.msgtql", &msgtql, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.msgtql)");
return;
}
len = sizeof (msgmnb);
if (sysctlbyname ("kern.ipc.msgmnb", &msgmnb, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.msgmnb)");
return;
}
len = sizeof (msgmni);
if (sysctlbyname ("kern.ipc.msgmni", &msgmni, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.msgmni)");
return;
}
len = sizeof (msgmax);
if (sysctlbyname ("kern.ipc.msgmax", &msgmax, &len, NULL, 0)) {
glibtop_warn_io_r (server, "sysctl (kern.ipc.msgmax)");
return;
}
buf->msgmax = msgmax;
buf->msgmni = msgmni;
buf->msgmnb = msgmnb;
buf->msgtql = msgtql;
buf->msgssz = msgssz;
buf->msgpool = msgseg;
buf->flags = _glibtop_sysdeps_msg_limits;
}
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