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libvirt/0001-Extract-stats-functions-from-the-qemu-driver.patch

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From 6609ed5a377c3beaf8389e870b6851856cee42c7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Bosdonnat?= <cbosdonnat@suse.com>
Date: Thu, 4 Jan 2018 12:04:07 +0100
Subject: [PATCH 1/3] Extract stats functions from the qemu driver
Some of the qemu functions getting statistics can easily be reused in
other drivers. Create a conf/domain_stats.[ch] pair to host some of
them.
---
src/Makefile.am | 1 +
src/conf/domain_stats.c | 139 +++++++++++++++++++++++++++++++++++++++++
src/conf/domain_stats.h | 64 +++++++++++++++++++
src/libvirt_private.syms | 4 ++
src/qemu/qemu_driver.c | 158 +++--------------------------------------------
src/util/vircgroup.c | 46 ++++++++++++++
src/util/vircgroup.h | 4 ++
7 files changed, 265 insertions(+), 151 deletions(-)
create mode 100644 src/conf/domain_stats.c
create mode 100644 src/conf/domain_stats.h
Index: libvirt-7.1.0/src/conf/domain_stats.c
===================================================================
--- /dev/null
+++ libvirt-7.1.0/src/conf/domain_stats.c
@@ -0,0 +1,119 @@
+/*
+ * domain_stats.c: domain stats extraction helpers
+ *
+ * Copyright (C) 2006-2016 Red Hat, Inc.
+ * Copyright (C) 2006-2008 Daniel P. Berrange
+ * Copyright (c) 2018 SUSE LINUX Products GmbH, Nuernberg, Germany.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Author: Daniel P. Berrange <berrange@redhat.com>
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "virlog.h"
+#include "domain_stats.h"
+#include "virtypedparam.h"
+#include "virnetdevtap.h"
+#include "virnetdevopenvswitch.h"
+
+#define VIR_FROM_THIS VIR_FROM_DOMAIN
+
+VIR_LOG_INIT("conf.domain_stats");
+
+int
+virDomainStatsGetState(virDomainObjPtr dom,
+ virTypedParamListPtr params)
+{
+ if (virTypedParamListAddInt(params, dom->state.state, "state.state") < 0)
+ return -1;
+
+ if (virTypedParamListAddInt(params, dom->state.reason, "state.reason") < 0)
+ return -1;
+
+ return 0;
+}
+
+#define STATS_ADD_NET_PARAM(params, num, name, value) \
+ if (value >= 0 && \
+ virTypedParamListAddULLong((params), (value), "net.%zu.%s", (num), (name)) < 0) \
+ return -1;
+
+int
+virDomainStatsGetInterface(virDomainObjPtr dom,
+ virTypedParamListPtr params)
+{
+ size_t i;
+ struct _virDomainInterfaceStats tmp;
+
+ if (!virDomainObjIsActive(dom))
+ return 0;
+
+ if (virTypedParamListAddUInt(params, dom->def->nnets, "net.count") < 0)
+ return -1;
+
+ /* Check the path is one of the domain's network interfaces. */
+ for (i = 0; i < dom->def->nnets; i++) {
+ virDomainNetDefPtr net = dom->def->nets[i];
+ virDomainNetType actualType;
+
+ if (!net->ifname)
+ continue;
+
+ memset(&tmp, 0, sizeof(tmp));
+
+ actualType = virDomainNetGetActualType(net);
+
+ if (virTypedParamListAddString(params, net->ifname, "net.%zu.name", i) < 0)
+ return -1;
+
+ if (actualType == VIR_DOMAIN_NET_TYPE_VHOSTUSER) {
+ if (virNetDevOpenvswitchInterfaceStats(net->ifname, &tmp) < 0) {
+ virResetLastError();
+ continue;
+ }
+ } else {
+ if (virNetDevTapInterfaceStats(net->ifname, &tmp,
+ !virDomainNetTypeSharesHostView(net)) < 0) {
+ virResetLastError();
+ continue;
+ }
+ }
+
+ STATS_ADD_NET_PARAM(params, i,
+ "rx.bytes", tmp.rx_bytes);
+ STATS_ADD_NET_PARAM(params, i,
+ "rx.pkts", tmp.rx_packets);
+ STATS_ADD_NET_PARAM(params, i,
+ "rx.errs", tmp.rx_errs);
+ STATS_ADD_NET_PARAM(params, i,
+ "rx.drop", tmp.rx_drop);
+ STATS_ADD_NET_PARAM(params, i,
+ "tx.bytes", tmp.tx_bytes);
+ STATS_ADD_NET_PARAM(params, i,
+ "tx.pkts", tmp.tx_packets);
+ STATS_ADD_NET_PARAM(params, i,
+ "tx.errs", tmp.tx_errs);
+ STATS_ADD_NET_PARAM(params, i,
+ "tx.drop", tmp.tx_drop);
+ }
+
+ return 0;
+}
+
+#undef STATS_ADD_NET_PARAM
Index: libvirt-7.1.0/src/conf/domain_stats.h
===================================================================
--- /dev/null
+++ libvirt-7.1.0/src/conf/domain_stats.h
@@ -0,0 +1,62 @@
+/*
+ * domain_stats.h: domain stats extraction helpers
+ *
+ * Copyright (C) 2006-2016 Red Hat, Inc.
+ * Copyright (C) 2006-2008 Daniel P. Berrange
+ * Copyright (c) 2018 SUSE LINUX Products GmbH, Nuernberg, Germany.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * Author: Daniel P. Berrange <berrange@redhat.com>
+ */
+#ifndef __DOMAIN_STATS_H
+# define __DOMAIN_STATS_H
+
+# include "internal.h"
+# include "domain_conf.h"
+
+
+# define VIR_DOMAIN_STATS_ADD_COUNT_PARAM(record, maxparams, type, count) \
+do { \
+ char param_name[VIR_TYPED_PARAM_FIELD_LENGTH]; \
+ snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, "%s.count", type); \
+ if (virTypedParamsAddUInt(&(record)->params, \
+ &(record)->nparams, \
+ maxparams, \
+ param_name, \
+ count) < 0) \
+ goto cleanup; \
+} while (0)
+
+# define VIR_DOMAIN_STATS_ADD_NAME_PARAM(record, maxparams, type, subtype, num, name) \
+do { \
+ char param_name[VIR_TYPED_PARAM_FIELD_LENGTH]; \
+ snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH, \
+ "%s.%zu.%s", type, num, subtype); \
+ if (virTypedParamsAddString(&(record)->params, \
+ &(record)->nparams, \
+ maxparams, \
+ param_name, \
+ name) < 0) \
+ goto cleanup; \
+} while (0)
+
+int virDomainStatsGetState(virDomainObjPtr dom,
+ virTypedParamListPtr params);
+
+int virDomainStatsGetInterface(virDomainObjPtr dom,
+ virTypedParamListPtr params);
+
+#endif /* __DOMAIN_STATS_H */
Index: libvirt-7.1.0/src/libvirt_private.syms
===================================================================
--- libvirt-7.1.0.orig/src/libvirt_private.syms
+++ libvirt-7.1.0/src/libvirt_private.syms
@@ -745,12 +745,16 @@ virDomainConfNWFilterTeardown;
virDomainConfVMNWFilterTeardown;
+# conf/domain_stats.h
+virDomainStatsGetInterface;
+virDomainStatsGetState;
+
+
# conf/domain_validate.h
virDomainActualNetDefValidate;
virDomainDefValidate;
virDomainDeviceValidateAliasForHotplug;
-
# conf/interface_conf.h
virInterfaceDefFormat;
virInterfaceDefFree;
@@ -1898,6 +1902,7 @@ virCgroupGetMemoryUsage;
virCgroupGetMemSwapHardLimit;
virCgroupGetMemSwapUsage;
virCgroupGetPercpuStats;
+virCgroupGetStatsCpu;
virCgroupHasController;
virCgroupHasEmptyTasks;
virCgroupKillPainfully;
Index: libvirt-7.1.0/src/qemu/qemu_driver.c
===================================================================
--- libvirt-7.1.0.orig/src/qemu/qemu_driver.c
+++ libvirt-7.1.0/src/qemu/qemu_driver.c
@@ -67,6 +67,7 @@
#include "virarptable.h"
#include "viruuid.h"
#include "domain_conf.h"
+#include "domain_stats.h"
#include "domain_audit.h"
#include "domain_cgroup.h"
#include "domain_driver.h"
@@ -17515,13 +17516,7 @@ qemuDomainGetStatsState(virQEMUDriverPtr
virTypedParamListPtr params,
unsigned int privflags G_GNUC_UNUSED)
{
- if (virTypedParamListAddInt(params, dom->state.state, "state.state") < 0)
- return -1;
-
- if (virTypedParamListAddInt(params, dom->state.reason, "state.reason") < 0)
- return -1;
-
- return 0;
+ return virDomainStatsGetState(dom, params);
}
@@ -17815,25 +17810,11 @@ qemuDomainGetStatsCpuCgroup(virDomainObj
virTypedParamListPtr params)
{
qemuDomainObjPrivatePtr priv = dom->privateData;
- unsigned long long cpu_time = 0;
- unsigned long long user_time = 0;
- unsigned long long sys_time = 0;
- int err = 0;
if (!priv->cgroup)
return 0;
- err = virCgroupGetCpuacctUsage(priv->cgroup, &cpu_time);
- if (!err && virTypedParamListAddULLong(params, cpu_time, "cpu.time") < 0)
- return -1;
-
- err = virCgroupGetCpuacctStat(priv->cgroup, &user_time, &sys_time);
- if (!err && virTypedParamListAddULLong(params, user_time, "cpu.user") < 0)
- return -1;
- if (!err && virTypedParamListAddULLong(params, sys_time, "cpu.system") < 0)
- return -1;
-
- return 0;
+ return virCgroupGetStatsCpu(priv->cgroup, params);
}
@@ -18000,76 +17981,15 @@ qemuDomainGetStatsVcpu(virQEMUDriverPtr
return ret;
}
-#define QEMU_ADD_NET_PARAM(params, num, name, value) \
- if (value >= 0 && \
- virTypedParamListAddULLong((params), (value), "net.%zu.%s", (num), (name)) < 0) \
- return -1;
-
static int
qemuDomainGetStatsInterface(virQEMUDriverPtr driver G_GNUC_UNUSED,
virDomainObjPtr dom,
virTypedParamListPtr params,
unsigned int privflags G_GNUC_UNUSED)
{
- size_t i;
- struct _virDomainInterfaceStats tmp;
-
- if (!virDomainObjIsActive(dom))
- return 0;
-
- if (virTypedParamListAddUInt(params, dom->def->nnets, "net.count") < 0)
- return -1;
-
- /* Check the path is one of the domain's network interfaces. */
- for (i = 0; i < dom->def->nnets; i++) {
- virDomainNetDefPtr net = dom->def->nets[i];
- virDomainNetType actualType;
-
- if (!net->ifname)
- continue;
-
- memset(&tmp, 0, sizeof(tmp));
-
- actualType = virDomainNetGetActualType(net);
-
- if (virTypedParamListAddString(params, net->ifname, "net.%zu.name", i) < 0)
- return -1;
-
- if (actualType == VIR_DOMAIN_NET_TYPE_VHOSTUSER) {
- if (virNetDevOpenvswitchInterfaceStats(net->ifname, &tmp) < 0) {
- virResetLastError();
- continue;
- }
- } else {
- if (virNetDevTapInterfaceStats(net->ifname, &tmp,
- !virDomainNetTypeSharesHostView(net)) < 0) {
- virResetLastError();
- continue;
- }
- }
-
- QEMU_ADD_NET_PARAM(params, i,
- "rx.bytes", tmp.rx_bytes);
- QEMU_ADD_NET_PARAM(params, i,
- "rx.pkts", tmp.rx_packets);
- QEMU_ADD_NET_PARAM(params, i,
- "rx.errs", tmp.rx_errs);
- QEMU_ADD_NET_PARAM(params, i,
- "rx.drop", tmp.rx_drop);
- QEMU_ADD_NET_PARAM(params, i,
- "tx.bytes", tmp.tx_bytes);
- QEMU_ADD_NET_PARAM(params, i,
- "tx.pkts", tmp.tx_packets);
- QEMU_ADD_NET_PARAM(params, i,
- "tx.errs", tmp.tx_errs);
- QEMU_ADD_NET_PARAM(params, i,
- "tx.drop", tmp.tx_drop);
- }
-
- return 0;
+ return virDomainStatsGetInterface(dom,params);
}
-#undef QEMU_ADD_NET_PARAM
/* refresh information by opening images on the disk */
static int
Index: libvirt-7.1.0/src/util/vircgroup.c
===================================================================
--- libvirt-7.1.0.orig/src/util/vircgroup.c
+++ libvirt-7.1.0/src/util/vircgroup.c
@@ -2981,6 +2981,31 @@ virCgroupControllerAvailable(int control
return virCgroupHasController(cgroup, controller);
}
+int
+virCgroupGetStatsCpu(virCgroupPtr cgroup,
+ virTypedParamListPtr params)
+{
+ unsigned long long cpu_time = 0;
+ unsigned long long user_time = 0;
+ unsigned long long sys_time = 0;
+ int err = 0;
+
+ if (!cgroup)
+ return 0;
+
+ err = virCgroupGetCpuacctUsage(cgroup, &cpu_time);
+ if (!err && virTypedParamListAddULLong(params, cpu_time, "cpu.time") < 0)
+ return -1;
+
+ err = virCgroupGetCpuacctStat(cgroup, &user_time, &sys_time);
+ if (!err && virTypedParamListAddULLong(params, user_time, "cpu.user") < 0)
+ return -1;
+ if (!err && virTypedParamListAddULLong(params, sys_time, "cpu.system") < 0)
+ return -1;
+
+ return 0;
+}
+
#else /* !__linux__ */
bool
@@ -2990,6 +3015,14 @@ virCgroupAvailable(void)
}
+int
+virCgroupGetStatsCpu(virCgroupPtr cgroup,
+ virTypedParamListPtr params)
+{
+ return 0;
+}
+
+
int
virCgroupNewPartition(const char *path G_GNUC_UNUSED,
bool create G_GNUC_UNUSED,
Index: libvirt-7.1.0/src/util/vircgroup.h
===================================================================
--- libvirt-7.1.0.orig/src/util/vircgroup.h
+++ libvirt-7.1.0/src/util/vircgroup.h
@@ -23,6 +23,7 @@
#include "virbitmap.h"
#include "virenum.h"
+#include "virtypedparam.h"
struct _virCgroup;
typedef struct _virCgroup virCgroup;
@@ -284,3 +285,6 @@ int virCgroupSetOwner(virCgroupPtr cgrou
int virCgroupHasEmptyTasks(virCgroupPtr cgroup, int controller);
bool virCgroupControllerAvailable(int controller);
+
+int virCgroupGetStatsCpu(virCgroupPtr cgroup,
+ virTypedParamListPtr params);
Index: libvirt-7.1.0/src/conf/meson.build
===================================================================
--- libvirt-7.1.0.orig/src/conf/meson.build
+++ libvirt-7.1.0/src/conf/meson.build
@@ -15,6 +15,7 @@ domain_conf_sources = [
'domain_conf.c',
'domain_nwfilter.c',
'domain_validate.c',
+ 'domain_stats.c',
'moment_conf.c',
'numa_conf.c',
'snapshot_conf.c',
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