a5dd7e9063
It changes the return values of all sysdeps functions which were previosly returning void to int. This is the first step to implement better error handling in LibGTop. Martin 1999-10-24 Martin Baulig <martin@home-of-linux.org> * include/glibtop/*.h (glibtop_get_*, glibtop_init*): Changed the return value of all `glibtop_get_<feature>_* ()' and all `glibtop_init_<feature>_* ()' functions from void to int. * features.def: Reflect changes of the return values. * sysdeps/*/*.c: Reflect changes of the return values.
76 lines
2.2 KiB
C
76 lines
2.2 KiB
C
/* $Id$ */
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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <glibtop.h>
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#include <glibtop/msg_limits.h>
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#include <glibtop_suid.h>
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/* #define KERNEL to get declaration of `struct msginfo'. */
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#define KERNEL
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#include <sys/ipc.h>
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#include <sys/msg.h>
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static const unsigned long _glibtop_sysdeps_msg_limits =
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(1L << GLIBTOP_IPC_MSGMAP) + (1L << GLIBTOP_IPC_MSGMAX) +
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(1L << GLIBTOP_IPC_MSGMNB) + (1L << GLIBTOP_IPC_MSGMNI) +
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(1L << GLIBTOP_IPC_MSGSSZ) + (1L << GLIBTOP_IPC_MSGTQL);
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/* Provides information about sysv ipc limits. */
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int
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glibtop_get_msg_limits_p (glibtop *server, glibtop_msg_limits *buf)
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{
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struct msginfo msginfo;
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glibtop_init_p (server, (1L << GLIBTOP_SYSDEPS_MSG_LIMITS), 0);
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memset (buf, 0, sizeof (glibtop_msg_limits));
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/* !!! THE FOLLOWING CODE RUNS SGID KMEM - CHANGE WITH CAUTION !!! */
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setregid (server->machine.gid, server->machine.egid);
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/* get the load average array */
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(void) _glibtop_getkval (server, _glibtop_nlist [X_MSGINFO].n_value,
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(int *) &msginfo, sizeof (msginfo),
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_glibtop_nlist [X_MSGINFO].n_name);
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if (setregid (server->machine.egid, server->machine.gid))
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_exit (1);
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/* !!! END OF SGID KMEM PART !!! */
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buf->msgmap = msginfo.msgmap;
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buf->msgmax = msginfo.msgmax;
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buf->msgmnb = msginfo.msgmnb;
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buf->msgmni = msginfo.msgmni;
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buf->msgssz = msginfo.msgssz;
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buf->msgtql = msginfo.msgtql;
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buf->flags = _glibtop_sysdeps_msg_limits;
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}
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