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1d31526b52
Standardize on putting the _LAST enum value on the second line of VIR_ENUM_IMPL invocations. Later patches that add string labels to VIR_ENUM_IMPL will push most of these to the second line anyways, so this saves some noise. Signed-off-by: Cole Robinson <crobinso@redhat.com>
91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
/*
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* vircgroupbackend.c: methods for cgroups backend
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*
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* Copyright (C) 2018 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include "vircgroupbackend.h"
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#define LIBVIRT_VIRCGROUPPRIV_H_ALLOW
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#include "vircgrouppriv.h"
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#include "vircgroupv1.h"
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#include "vircgroupv2.h"
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#include "virerror.h"
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#include "virthread.h"
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#define VIR_FROM_THIS VIR_FROM_CGROUP
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VIR_ENUM_DECL(virCgroupBackend);
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VIR_ENUM_IMPL(virCgroupBackend,
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VIR_CGROUP_BACKEND_TYPE_LAST,
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"cgroup V2",
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"cgroup V1",
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);
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static virOnceControl virCgroupBackendOnce = VIR_ONCE_CONTROL_INITIALIZER;
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static virCgroupBackendPtr virCgroupBackends[VIR_CGROUP_BACKEND_TYPE_LAST] = { 0 };
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void
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virCgroupBackendRegister(virCgroupBackendPtr backend)
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{
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if (virCgroupBackends[backend->type]) {
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virReportError(VIR_ERR_INTERNAL_ERROR,
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_("Cgroup backend '%s' already registered."),
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virCgroupBackendTypeToString(backend->type));
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return;
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}
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virCgroupBackends[backend->type] = backend;
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}
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static void
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virCgroupBackendOnceInit(void)
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{
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virCgroupV2Register();
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virCgroupV1Register();
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}
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virCgroupBackendPtr *
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virCgroupBackendGetAll(void)
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{
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if (virOnce(&virCgroupBackendOnce, virCgroupBackendOnceInit) < 0) {
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virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
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_("Failed to initialize cgroup backend."));
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return NULL;
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}
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return virCgroupBackends;
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}
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virCgroupBackendPtr
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virCgroupBackendForController(virCgroupPtr group,
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unsigned int controller)
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{
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size_t i;
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for (i = 0; i < VIR_CGROUP_BACKEND_TYPE_LAST; i++) {
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if (group->backends[i] &&
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group->backends[i]->hasController(group, controller)) {
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return group->backends[i];
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}
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}
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return NULL;
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}
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