mirror of https://gitee.com/openkylin/libvirt.git
149 lines
4.2 KiB
C
149 lines
4.2 KiB
C
/*
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* virsh-completer-host.c: virsh completer callbacks related to host
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*
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* Copyright (C) 2019 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 "virsh-completer-host.h"
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#include "viralloc.h"
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#include "virsh.h"
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#include "virstring.h"
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#include "virxml.h"
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#include "virutil.h"
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static char *
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virshPagesizeNodeToString(xmlNodePtr node)
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{
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g_autofree char *pagesize = NULL;
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g_autofree char *unit = NULL;
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unsigned long long byteval = 0;
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const char *suffix = NULL;
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double size = 0;
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char *ret;
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pagesize = virXMLPropString(node, "size");
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unit = virXMLPropString(node, "unit");
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if (virStrToLong_ull(pagesize, NULL, 10, &byteval) < 0)
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return NULL;
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if (virScaleInteger(&byteval, unit, 1024, UINT_MAX) < 0)
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return NULL;
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size = vshPrettyCapacity(byteval, &suffix);
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if (virAsprintf(&ret, "%.0f%s", size, suffix) < 0)
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return NULL;
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return ret;
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}
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char **
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virshAllocpagesPagesizeCompleter(vshControl *ctl,
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const vshCmd *cmd G_GNUC_UNUSED,
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unsigned int flags)
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{
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g_autoptr(xmlXPathContext) ctxt = NULL;
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virshControlPtr priv = ctl->privData;
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unsigned int npages = 0;
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g_autofree xmlNodePtr *pages = NULL;
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g_autoptr(xmlDoc) doc = NULL;
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size_t i = 0;
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const char *cellnum = NULL;
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bool cellno = vshCommandOptBool(cmd, "cellno");
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g_autofree char *path = NULL;
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g_autofree char *cap_xml = NULL;
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char **ret = NULL;
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VIR_AUTOSTRINGLIST tmp = NULL;
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virCheckFlags(0, NULL);
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if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
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return NULL;
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if (!(cap_xml = virConnectGetCapabilities(priv->conn)))
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return NULL;
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if (!(doc = virXMLParseStringCtxt(cap_xml, _("capabilities"), &ctxt)))
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return NULL;
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if (cellno && vshCommandOptStringQuiet(ctl, cmd, "cellno", &cellnum) > 0) {
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if (virAsprintf(&path,
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"/capabilities/host/topology/cells/cell[@id=\"%s\"]/pages",
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cellnum) < 0)
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return NULL;
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} else {
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if (virAsprintf(&path, "/capabilities/host/cpu/pages") < 0)
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return NULL;
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}
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npages = virXPathNodeSet(path, ctxt, &pages);
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if (npages <= 0)
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return NULL;
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if (VIR_ALLOC_N(tmp, npages + 1) < 0)
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return NULL;
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for (i = 0; i < npages; i++) {
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if (!(tmp[i] = virshPagesizeNodeToString(pages[i])))
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return NULL;
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}
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VIR_STEAL_PTR(ret, tmp);
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return ret;
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}
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char **
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virshCellnoCompleter(vshControl *ctl,
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const vshCmd *cmd G_GNUC_UNUSED,
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unsigned int flags)
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{
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g_autoptr(xmlXPathContext) ctxt = NULL;
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virshControlPtr priv = ctl->privData;
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unsigned int ncells = 0;
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g_autofree xmlNodePtr *cells = NULL;
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g_autoptr(xmlDoc) doc = NULL;
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size_t i = 0;
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g_autofree char *cap_xml = NULL;
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char **ret = NULL;
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VIR_AUTOSTRINGLIST tmp = NULL;
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virCheckFlags(0, NULL);
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if (!priv->conn || virConnectIsAlive(priv->conn) <= 0)
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return NULL;
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if (!(cap_xml = virConnectGetCapabilities(priv->conn)))
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return NULL;
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if (!(doc = virXMLParseStringCtxt(cap_xml, _("capabilities"), &ctxt)))
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return NULL;
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ncells = virXPathNodeSet("/capabilities/host/topology/cells/cell", ctxt, &cells);
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if (ncells <= 0)
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return NULL;
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if (VIR_ALLOC_N(tmp, ncells + 1))
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return NULL;
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for (i = 0; i < ncells; i++) {
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if (!(tmp[i] = virXMLPropString(cells[i], "id")))
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return NULL;
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}
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VIR_STEAL_PTR(ret, tmp);
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return ret;
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}
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