78 lines
2.3 KiB
C
78 lines
2.3 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/sem_limits.h>
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#include <kvm.h>
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#include <sys/sem.h>
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static struct nlist nlst[] = { {"seminfo"}, {NULL} };
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static const unsigned long _glibtop_sysdeps_sem_limits =
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(1L << GLIBTOP_IPC_SEMMAP) + (1L << GLIBTOP_IPC_SEMMNI) +
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(1L << GLIBTOP_IPC_SEMMNS) + (1L << GLIBTOP_IPC_SEMMNU) +
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(1L << GLIBTOP_IPC_SEMMSL) + (1L << GLIBTOP_IPC_SEMOPM) +
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(1L << GLIBTOP_IPC_SEMUME) + (1L << GLIBTOP_IPC_SEMUSZ) +
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(1L << GLIBTOP_IPC_SEMVMX) + (1L << GLIBTOP_IPC_SEMAEM);
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/* Init function. */
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void
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glibtop_init_sem_limits_s (glibtop *server)
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{
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kvm_t *kd = server->machine.kd;
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if(kd && !kvm_nlist(kd, nlst))
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server->sysdeps.sem_limits = _glibtop_sysdeps_sem_limits;
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else
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server->sysdeps.sem_limits = 0;
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}
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/* Provides information about sysv sem limits. */
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void
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glibtop_get_sem_limits_s (glibtop *server, glibtop_sem_limits *buf)
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{
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kvm_t *kd = server->machine.kd;
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struct seminfo sinfo;
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memset (buf, 0, sizeof (glibtop_sem_limits));
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if(!(server->sysdeps.sem_limits))
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return;
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if(kvm_read(kd, nlst[0].n_value, (void *)&sinfo,
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sizeof(struct seminfo)) != sizeof(struct seminfo))
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return;
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buf->semmap = sinfo.semmap;
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buf->semmni = sinfo.semmni;
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buf->semmns = sinfo.semmns;
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buf->semmnu = sinfo.semmnu;
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buf->semmsl = sinfo.semmsl;
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buf->semopm = sinfo.semopm;
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buf->semume = sinfo.semume;
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buf->semusz = sinfo.semusz;
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buf->semvmx = sinfo.semvmx;
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buf->semaem = sinfo.semaem;
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buf->flags = _glibtop_sysdeps_sem_limits;
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}
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