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Using the new VIR_DEFINE_AUTOPTR_FUNC macro defined in src/util/viralloc.h, define a new wrapper around an existing cleanup function which will be called when a variable declared with VIR_AUTOPTR macro goes out of scope. Also, drop the redundant viralloc.h include, since that has moved from the source module into the header. When a variable of type virCgroupPtr is declared using VIR_AUTOPTR, the function virCgroupFree will be run automatically on it when it goes out of scope. This commit also adds an intermediate typedef for virCgroup type for use with the cleanup macros. Signed-off-by: Sukrit Bhatnagar <skrtbhtngr@gmail.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
306 lines
11 KiB
C
306 lines
11 KiB
C
/*
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* vircgroup.h: methods for managing control cgroups
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*
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* Copyright (C) 2011-2015 Red Hat, Inc.
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* Copyright IBM Corp. 2008
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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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* Authors:
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* Dan Smith <danms@us.ibm.com>
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*/
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#ifndef __VIR_CGROUP_H__
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# define __VIR_CGROUP_H__
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# include "virutil.h"
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# include "virbitmap.h"
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# include "viralloc.h"
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struct _virCgroup;
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typedef struct _virCgroup virCgroup;
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typedef virCgroup *virCgroupPtr;
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enum {
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VIR_CGROUP_CONTROLLER_CPU,
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VIR_CGROUP_CONTROLLER_CPUACCT,
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VIR_CGROUP_CONTROLLER_CPUSET,
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VIR_CGROUP_CONTROLLER_MEMORY,
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VIR_CGROUP_CONTROLLER_DEVICES,
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VIR_CGROUP_CONTROLLER_FREEZER,
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VIR_CGROUP_CONTROLLER_BLKIO,
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VIR_CGROUP_CONTROLLER_NET_CLS,
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VIR_CGROUP_CONTROLLER_PERF_EVENT,
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VIR_CGROUP_CONTROLLER_SYSTEMD,
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VIR_CGROUP_CONTROLLER_LAST
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};
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VIR_ENUM_DECL(virCgroupController);
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/* Items of this enum are used later in virCgroupNew to create
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* bit array stored in int. Like this:
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* 1 << VIR_CGROUP_CONTROLLER_CPU
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* Make sure we will not overflow */
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verify(VIR_CGROUP_CONTROLLER_LAST < 8 * sizeof(int));
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typedef enum {
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VIR_CGROUP_THREAD_VCPU = 0,
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VIR_CGROUP_THREAD_EMULATOR,
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VIR_CGROUP_THREAD_IOTHREAD,
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VIR_CGROUP_THREAD_LAST
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} virCgroupThreadName;
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bool virCgroupAvailable(void);
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int virCgroupNewPartition(const char *path,
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bool create,
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int controllers,
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virCgroupPtr *group)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(4);
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int virCgroupNewSelf(virCgroupPtr *group)
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ATTRIBUTE_NONNULL(1);
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int virCgroupNewDomainPartition(virCgroupPtr partition,
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const char *driver,
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const char *name,
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bool create,
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virCgroupPtr *group)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(5);
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int virCgroupNewThread(virCgroupPtr domain,
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virCgroupThreadName nameval,
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int id,
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bool create,
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virCgroupPtr *group)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(5);
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int virCgroupDelThread(virCgroupPtr cgroup,
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virCgroupThreadName nameval,
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int idx);
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int virCgroupNewDetect(pid_t pid,
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int controllers,
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virCgroupPtr *group);
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int
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virCgroupNewDetectMachine(const char *name,
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const char *drivername,
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pid_t pid,
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int controllers,
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char *machinename,
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virCgroupPtr *group)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
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int virCgroupNewMachine(const char *name,
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const char *drivername,
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const unsigned char *uuid,
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const char *rootdir,
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pid_t pidleader,
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bool isContainer,
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size_t nnicindexes,
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int *nicindexes,
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const char *partition,
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int controllers,
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virCgroupPtr *group)
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ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2)
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ATTRIBUTE_NONNULL(3);
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int virCgroupTerminateMachine(const char *name)
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ATTRIBUTE_NONNULL(1);
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bool virCgroupNewIgnoreError(void);
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void virCgroupFree(virCgroupPtr group);
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bool virCgroupHasController(virCgroupPtr cgroup, int controller);
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int virCgroupPathOfController(virCgroupPtr group,
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int controller,
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const char *key,
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char **path);
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int virCgroupAddTask(virCgroupPtr group, pid_t pid);
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int virCgroupAddMachineTask(virCgroupPtr group, pid_t pid);
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int virCgroupAddTaskController(virCgroupPtr group,
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pid_t pid,
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int controller);
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int virCgroupSetBlkioWeight(virCgroupPtr group, unsigned int weight);
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int virCgroupGetBlkioWeight(virCgroupPtr group, unsigned int *weight);
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int virCgroupGetBlkioIoServiced(virCgroupPtr group,
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long long *bytes_read,
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long long *bytes_write,
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long long *requests_read,
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long long *requests_write);
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int virCgroupGetBlkioIoDeviceServiced(virCgroupPtr group,
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const char *path,
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long long *bytes_read,
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long long *bytes_write,
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long long *requests_read,
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long long *requests_write);
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int virCgroupSetBlkioDeviceWeight(virCgroupPtr group,
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const char *path,
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unsigned int weight);
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int virCgroupSetBlkioDeviceReadIops(virCgroupPtr group,
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const char *path,
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unsigned int riops);
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int virCgroupSetBlkioDeviceWriteIops(virCgroupPtr group,
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const char *path,
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unsigned int wiops);
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int virCgroupSetBlkioDeviceReadBps(virCgroupPtr group,
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const char *path,
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unsigned long long rbps);
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int virCgroupSetBlkioDeviceWriteBps(virCgroupPtr group,
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const char *path,
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unsigned long long wbps);
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int virCgroupGetBlkioDeviceWeight(virCgroupPtr group,
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const char *path,
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unsigned int *weight);
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int virCgroupGetBlkioDeviceReadIops(virCgroupPtr group,
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const char *path,
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unsigned int *riops);
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int virCgroupGetBlkioDeviceWriteIops(virCgroupPtr group,
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const char *path,
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unsigned int *wiops);
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int virCgroupGetBlkioDeviceReadBps(virCgroupPtr group,
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const char *path,
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unsigned long long *rbps);
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int virCgroupGetBlkioDeviceWriteBps(virCgroupPtr group,
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const char *path,
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unsigned long long *wbps);
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int virCgroupSetMemory(virCgroupPtr group, unsigned long long kb);
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int virCgroupGetMemoryUsage(virCgroupPtr group, unsigned long *kb);
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int virCgroupSetMemoryHardLimit(virCgroupPtr group, unsigned long long kb);
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int virCgroupGetMemoryHardLimit(virCgroupPtr group, unsigned long long *kb);
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int virCgroupSetMemorySoftLimit(virCgroupPtr group, unsigned long long kb);
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int virCgroupGetMemorySoftLimit(virCgroupPtr group, unsigned long long *kb);
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int virCgroupSetMemSwapHardLimit(virCgroupPtr group, unsigned long long kb);
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int virCgroupGetMemSwapHardLimit(virCgroupPtr group, unsigned long long *kb);
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int virCgroupGetMemSwapUsage(virCgroupPtr group, unsigned long long *kb);
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enum {
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VIR_CGROUP_DEVICE_READ = 1,
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VIR_CGROUP_DEVICE_WRITE = 2,
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VIR_CGROUP_DEVICE_MKNOD = 4,
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VIR_CGROUP_DEVICE_RW = VIR_CGROUP_DEVICE_READ | VIR_CGROUP_DEVICE_WRITE,
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VIR_CGROUP_DEVICE_RWM = VIR_CGROUP_DEVICE_RW | VIR_CGROUP_DEVICE_MKNOD,
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};
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const char *virCgroupGetDevicePermsString(int perms);
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int virCgroupDenyAllDevices(virCgroupPtr group);
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int virCgroupAllowAllDevices(virCgroupPtr group, int perms);
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int virCgroupAllowDevice(virCgroupPtr group,
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char type,
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int major,
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int minor,
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int perms);
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int virCgroupAllowDevicePath(virCgroupPtr group,
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const char *path,
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int perms,
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bool ignoreEacces);
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int virCgroupDenyDevice(virCgroupPtr group,
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char type,
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int major,
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int minor,
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int perms);
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int virCgroupDenyDevicePath(virCgroupPtr group,
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const char *path,
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int perms,
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bool ignoreEacces);
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int
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virCgroupGetPercpuStats(virCgroupPtr group,
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virTypedParameterPtr params,
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unsigned int nparams,
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int start_cpu,
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unsigned int ncpus,
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virBitmapPtr guestvcpus);
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int
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virCgroupGetDomainTotalCpuStats(virCgroupPtr group,
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virTypedParameterPtr params,
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int nparams);
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int virCgroupSetCpuShares(virCgroupPtr group, unsigned long long shares);
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int virCgroupGetCpuShares(virCgroupPtr group, unsigned long long *shares);
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int virCgroupSetCpuCfsPeriod(virCgroupPtr group, unsigned long long cfs_period);
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int virCgroupGetCpuCfsPeriod(virCgroupPtr group, unsigned long long *cfs_period);
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int virCgroupSetCpuCfsQuota(virCgroupPtr group, long long cfs_quota);
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int virCgroupGetCpuCfsQuota(virCgroupPtr group, long long *cfs_quota);
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int virCgroupGetCpuacctUsage(virCgroupPtr group, unsigned long long *usage);
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int virCgroupGetCpuacctPercpuUsage(virCgroupPtr group, char **usage);
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int virCgroupGetCpuacctStat(virCgroupPtr group, unsigned long long *user,
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unsigned long long *sys);
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int virCgroupSetFreezerState(virCgroupPtr group, const char *state);
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int virCgroupGetFreezerState(virCgroupPtr group, char **state);
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int virCgroupSetCpusetMems(virCgroupPtr group, const char *mems);
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int virCgroupGetCpusetMems(virCgroupPtr group, char **mems);
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int virCgroupSetCpusetMemoryMigrate(virCgroupPtr group, bool migrate);
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int virCgroupGetCpusetMemoryMigrate(virCgroupPtr group, bool *migrate);
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int virCgroupSetCpusetCpus(virCgroupPtr group, const char *cpus);
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int virCgroupGetCpusetCpus(virCgroupPtr group, char **cpus);
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int virCgroupRemoveRecursively(char *grppath);
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int virCgroupRemove(virCgroupPtr group);
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int virCgroupKill(virCgroupPtr group, int signum);
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int virCgroupKillRecursive(virCgroupPtr group, int signum);
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int virCgroupKillPainfully(virCgroupPtr group);
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int virCgroupBindMount(virCgroupPtr group,
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const char *oldroot,
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const char *mountopts);
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bool virCgroupSupportsCpuBW(virCgroupPtr cgroup);
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int virCgroupSetOwner(virCgroupPtr cgroup,
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uid_t uid,
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gid_t gid,
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int controllers);
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int virCgroupHasEmptyTasks(virCgroupPtr cgroup, int controller);
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bool virCgroupControllerAvailable(int controller);
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VIR_DEFINE_AUTOPTR_FUNC(virCgroup, virCgroupFree)
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#endif /* __VIR_CGROUP_H__ */
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