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/* Copyright (C) 2007 BenoƮt Dejean
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This file is part of LibGTop 2.
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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., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <config.h>
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#include <glibtop/procaffinity.h>
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#include <glibtop/error.h>
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#include <glibtop_private.h>
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#include <sched.h>
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void
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_glibtop_init_proc_affinity_s(glibtop *server)
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{
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server->sysdeps.proc_affinity =
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(1 << GLIBTOP_PROC_AFFINITY_NUMBER) |
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(1 << GLIBTOP_PROC_AFFINITY_ALL);
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}
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guint16 *
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glibtop_get_proc_affinity_s(glibtop *server, glibtop_proc_affinity *buf, pid_t pid)
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{
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cpu_set_t set;
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size_t i;
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GArray* cpus;
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memset(buf, 0, sizeof *buf);
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if (sched_getaffinity(pid, sizeof set, &set) == -1) {
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glibtop_error_r(server, "sched_getaffinity failed");
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return NULL;
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}
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cpus = g_array_new(FALSE, FALSE, sizeof(guint16));
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for (i = 0; i < MIN(CPU_SETSIZE, (size_t)(server->ncpu + 1)); i++) {
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if (CPU_ISSET(i, &set)) {
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guint16 n = i;
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g_array_append_val(cpus, n);
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}
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}
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buf->number = cpus->len;
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buf->all = (cpus->len == (size_t)(server->ncpu + 1));
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buf->flags = (1 << GLIBTOP_PROC_AFFINITY_NUMBER)
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| (1 << GLIBTOP_PROC_AFFINITY_ALL);
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return (guint16*) g_array_free(cpus, FALSE);
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}
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