2868191440
* glibtop_machine.h: add field for kvm descriptor.
* open.c: add code for opening kernel name space.
* shm_limits.c: implemented.
The real implementation will have this code in the daemon, since process
needs to be setgid sys to be able to read kernel symbols.
70 lines
2.1 KiB
C
70 lines
2.1 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/open.h>
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/* Opens pipe to gtop server. Returns 0 on success and -1 on error. */
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void
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glibtop_open_s (glibtop *server, const char *program_name,
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const unsigned long features, const unsigned flags)
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{
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kstat_t *ksp;
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server->name = program_name;
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server->machine.kc = kstat_open ();
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for (ksp = server->machine.kc->kc_chain; ksp != NULL; ksp = ksp->ks_next) {
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if (!strcmp (ksp->ks_class, "vm") && !strcmp (ksp->ks_name, "vminfo")) {
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server->machine.vminfo_kstat = ksp;
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kstat_read (server->machine.kc, ksp, &server->machine.vminfo);
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server->machine.vminfo_snaptime = ksp->ks_snaptime;
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continue;
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}
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if (!strcmp (ksp->ks_class, "misc") && !strncmp (ksp->ks_name, "cpu_stat", 8)) {
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int cpu;
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if ((sscanf (ksp->ks_name+8, "%d", &cpu) != 1) || (cpu > 63))
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continue;
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if (cpu >= server->ncpu)
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server->ncpu = cpu+1;
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server->machine.cpu_stat_kstat [cpu] = ksp;
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continue;
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}
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}
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if (!server->machine.kc)
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glibtop_error_io_r (server, "kstat_open ()");
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server->machine.kd = kvm_open(NULL, NULL, NULL, O_RDONLY, NULL);
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if(!server->machine.kd)
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glibtop_warn_io_r(server, "kvm_open()");
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fprintf (stderr, "Sleeping 2 seconds, please wait ...\n");
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sleep (2);
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}
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