mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-12-30 17:45:23 +00:00
568a417224
Require that all headers are guarded by a symbol named LIBVIRT_$FILENAME where $FILENAME is the uppercased filename, with all characters outside a-z changed into '_'. Note we do not use a leading __ because that is technically a namespace reserved for the toolchain. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
465 lines
15 KiB
C
465 lines
15 KiB
C
/*
|
|
* vircgroupbackend.h: methods for cgroups backend
|
|
*
|
|
* Copyright (C) 2018 Red Hat, Inc.
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifndef LIBVIRT_VIRCGROUPBACKEND_H
|
|
# define LIBVIRT_VIRCGROUPBACKEND_H
|
|
|
|
# include "internal.h"
|
|
|
|
# include "vircgroup.h"
|
|
# include "virhash.h"
|
|
|
|
# define CGROUP_MAX_VAL 512
|
|
|
|
typedef enum {
|
|
VIR_CGROUP_NONE = 0, /* create subdir under each cgroup if possible. */
|
|
VIR_CGROUP_MEM_HIERACHY = 1 << 0, /* call virCgroupSetMemoryUseHierarchy
|
|
* before creating subcgroups and
|
|
* attaching tasks
|
|
*/
|
|
VIR_CGROUP_THREAD = 1 << 1, /* cgroup v2 handles threads differently */
|
|
} virCgroupBackendFlags;
|
|
|
|
typedef enum {
|
|
/* Adds a whole process with all threads to specific cgroup except
|
|
* to systemd named controller. */
|
|
VIR_CGROUP_TASK_PROCESS = 1 << 0,
|
|
|
|
/* Same as VIR_CGROUP_TASK_PROCESS but it also adds the task to systemd
|
|
* named controller. */
|
|
VIR_CGROUP_TASK_SYSTEMD = 1 << 1,
|
|
|
|
/* Moves only specific thread into cgroup except to systemd
|
|
* named controller. */
|
|
VIR_CGROUP_TASK_THREAD = 1 << 2,
|
|
} virCgroupBackendTaskFlags;
|
|
|
|
typedef enum {
|
|
VIR_CGROUP_BACKEND_TYPE_V2 = 0,
|
|
VIR_CGROUP_BACKEND_TYPE_V1,
|
|
VIR_CGROUP_BACKEND_TYPE_LAST,
|
|
} virCgroupBackendType;
|
|
|
|
typedef bool
|
|
(*virCgroupAvailableCB)(void);
|
|
|
|
typedef bool
|
|
(*virCgroupValidateMachineGroupCB)(virCgroupPtr group,
|
|
const char *name,
|
|
const char *drivername,
|
|
const char *machinename);
|
|
|
|
typedef int
|
|
(*virCgroupCopyMountsCB)(virCgroupPtr group,
|
|
virCgroupPtr parent);
|
|
|
|
typedef int
|
|
(*virCgroupCopyPlacementCB)(virCgroupPtr group,
|
|
const char *path,
|
|
virCgroupPtr parent);
|
|
|
|
typedef int
|
|
(*virCgroupDetectMountsCB)(virCgroupPtr group,
|
|
const char *mntType,
|
|
const char *mntOpts,
|
|
const char *mntDir);
|
|
|
|
typedef int
|
|
(*virCgroupDetectPlacementCB)(virCgroupPtr group,
|
|
const char *path,
|
|
const char *controllers,
|
|
const char *selfpath);
|
|
|
|
typedef int
|
|
(*virCgroupValidatePlacementCB)(virCgroupPtr group,
|
|
pid_t pid);
|
|
|
|
typedef char *
|
|
(*virCgroupStealPlacementCB)(virCgroupPtr group);
|
|
|
|
typedef int
|
|
(*virCgroupDetectControllersCB)(virCgroupPtr group,
|
|
int controllers);
|
|
|
|
typedef bool
|
|
(*virCgroupHasControllerCB)(virCgroupPtr cgroup,
|
|
int controller);
|
|
|
|
typedef int
|
|
(*virCgroupGetAnyControllerCB)(virCgroupPtr group);
|
|
|
|
typedef int
|
|
(*virCgroupPathOfControllerCB)(virCgroupPtr group,
|
|
int controller,
|
|
const char *key,
|
|
char **path);
|
|
|
|
typedef int
|
|
(*virCgroupMakeGroupCB)(virCgroupPtr parent,
|
|
virCgroupPtr group,
|
|
bool create,
|
|
unsigned int flags);
|
|
|
|
typedef int
|
|
(*virCgroupRemoveCB)(virCgroupPtr group);
|
|
|
|
typedef int
|
|
(*virCgroupAddTaskCB)(virCgroupPtr group,
|
|
pid_t pid,
|
|
unsigned int flags);
|
|
|
|
typedef int
|
|
(*virCgroupHasEmptyTasksCB)(virCgroupPtr cgroup,
|
|
int controller);
|
|
|
|
typedef int
|
|
(*virCgroupKillRecursiveCB)(virCgroupPtr group,
|
|
int signum,
|
|
virHashTablePtr pids);
|
|
|
|
typedef int
|
|
(*virCgroupBindMountCB)(virCgroupPtr group,
|
|
const char *oldroot,
|
|
const char *mountopts);
|
|
|
|
typedef int
|
|
(*virCgroupSetOwnerCB)(virCgroupPtr cgroup,
|
|
uid_t uid,
|
|
gid_t gid,
|
|
int controllers);
|
|
|
|
typedef int
|
|
(*virCgroupSetBlkioWeightCB)(virCgroupPtr group,
|
|
unsigned int weight);
|
|
|
|
typedef int
|
|
(*virCgroupGetBlkioWeightCB)(virCgroupPtr group,
|
|
unsigned int *weight);
|
|
|
|
typedef int
|
|
(*virCgroupGetBlkioIoServicedCB)(virCgroupPtr group,
|
|
long long *bytes_read,
|
|
long long *bytes_write,
|
|
long long *requests_read,
|
|
long long *requests_write);
|
|
|
|
typedef int
|
|
(*virCgroupGetBlkioIoDeviceServicedCB)(virCgroupPtr group,
|
|
const char *path,
|
|
long long *bytes_read,
|
|
long long *bytes_write,
|
|
long long *requests_read,
|
|
long long *requests_write);
|
|
|
|
typedef int
|
|
(*virCgroupSetBlkioDeviceWeightCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned int weight);
|
|
|
|
typedef int
|
|
(*virCgroupGetBlkioDeviceWeightCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned int *weight);
|
|
|
|
typedef int
|
|
(*virCgroupSetBlkioDeviceReadIopsCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned int riops);
|
|
|
|
typedef int
|
|
(*virCgroupGetBlkioDeviceReadIopsCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned int *riops);
|
|
|
|
typedef int
|
|
(*virCgroupSetBlkioDeviceWriteIopsCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned int wiops);
|
|
|
|
typedef int
|
|
(*virCgroupGetBlkioDeviceWriteIopsCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned int *wiops);
|
|
|
|
typedef int
|
|
(*virCgroupSetBlkioDeviceReadBpsCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned long long rbps);
|
|
|
|
typedef int
|
|
(*virCgroupGetBlkioDeviceReadBpsCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned long long *rbps);
|
|
|
|
typedef int
|
|
(*virCgroupSetBlkioDeviceWriteBpsCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned long long wbps);
|
|
|
|
typedef int
|
|
(*virCgroupGetBlkioDeviceWriteBpsCB)(virCgroupPtr group,
|
|
const char *path,
|
|
unsigned long long *wbps);
|
|
|
|
typedef int
|
|
(*virCgroupSetMemoryCB)(virCgroupPtr group,
|
|
unsigned long long kb);
|
|
|
|
typedef int
|
|
(*virCgroupGetMemoryStatCB)(virCgroupPtr group,
|
|
unsigned long long *cache,
|
|
unsigned long long *activeAnon,
|
|
unsigned long long *inactiveAnon,
|
|
unsigned long long *activeFile,
|
|
unsigned long long *inactiveFile,
|
|
unsigned long long *unevictable);
|
|
|
|
typedef int
|
|
(*virCgroupGetMemoryUsageCB)(virCgroupPtr group,
|
|
unsigned long *kb);
|
|
|
|
typedef int
|
|
(*virCgroupSetMemoryHardLimitCB)(virCgroupPtr group,
|
|
unsigned long long kb);
|
|
|
|
typedef int
|
|
(*virCgroupGetMemoryHardLimitCB)(virCgroupPtr group,
|
|
unsigned long long *kb);
|
|
|
|
typedef int
|
|
(*virCgroupSetMemorySoftLimitCB)(virCgroupPtr group,
|
|
unsigned long long kb);
|
|
|
|
typedef int
|
|
(*virCgroupGetMemorySoftLimitCB)(virCgroupPtr group,
|
|
unsigned long long *kb);
|
|
|
|
typedef int
|
|
(*virCgroupSetMemSwapHardLimitCB)(virCgroupPtr group,
|
|
unsigned long long kb);
|
|
|
|
typedef int
|
|
(*virCgroupGetMemSwapHardLimitCB)(virCgroupPtr group,
|
|
unsigned long long *kb);
|
|
|
|
typedef int
|
|
(*virCgroupGetMemSwapUsageCB)(virCgroupPtr group,
|
|
unsigned long long *kb);
|
|
|
|
typedef int
|
|
(*virCgroupAllowDeviceCB)(virCgroupPtr group,
|
|
char type,
|
|
int major,
|
|
int minor,
|
|
int perms);
|
|
|
|
typedef int
|
|
(*virCgroupDenyDeviceCB)(virCgroupPtr group,
|
|
char type,
|
|
int major,
|
|
int minor,
|
|
int perms);
|
|
|
|
typedef int
|
|
(*virCgroupAllowAllDevicesCB)(virCgroupPtr group,
|
|
int perms);
|
|
|
|
typedef int
|
|
(*virCgroupDenyAllDevicesCB)(virCgroupPtr group);
|
|
|
|
typedef int
|
|
(*virCgroupSetCpuSharesCB)(virCgroupPtr group,
|
|
unsigned long long shares);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpuSharesCB)(virCgroupPtr group,
|
|
unsigned long long *shares);
|
|
|
|
typedef int
|
|
(*virCgroupSetCpuCfsPeriodCB)(virCgroupPtr group,
|
|
unsigned long long cfs_period);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpuCfsPeriodCB)(virCgroupPtr group,
|
|
unsigned long long *cfs_period);
|
|
|
|
typedef int
|
|
(*virCgroupSetCpuCfsQuotaCB)(virCgroupPtr group,
|
|
long long cfs_quota);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpuCfsQuotaCB)(virCgroupPtr group,
|
|
long long *cfs_quota);
|
|
|
|
typedef bool
|
|
(*virCgroupSupportsCpuBWCB)(virCgroupPtr cgroup);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpuacctUsageCB)(virCgroupPtr group,
|
|
unsigned long long *usage);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpuacctPercpuUsageCB)(virCgroupPtr group,
|
|
char **usage);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpuacctStatCB)(virCgroupPtr group,
|
|
unsigned long long *user,
|
|
unsigned long long *sys);
|
|
|
|
typedef int
|
|
(*virCgroupSetFreezerStateCB)(virCgroupPtr group,
|
|
const char *state);
|
|
|
|
typedef int
|
|
(*virCgroupGetFreezerStateCB)(virCgroupPtr group,
|
|
char **state);
|
|
|
|
typedef int
|
|
(*virCgroupSetCpusetMemsCB)(virCgroupPtr group,
|
|
const char *mems);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpusetMemsCB)(virCgroupPtr group,
|
|
char **mems);
|
|
|
|
typedef int
|
|
(*virCgroupSetCpusetMemoryMigrateCB)(virCgroupPtr group,
|
|
bool migrate);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpusetMemoryMigrateCB)(virCgroupPtr group,
|
|
bool *migrate);
|
|
|
|
typedef int
|
|
(*virCgroupSetCpusetCpusCB)(virCgroupPtr group,
|
|
const char *cpus);
|
|
|
|
typedef int
|
|
(*virCgroupGetCpusetCpusCB)(virCgroupPtr group,
|
|
char **cpus);
|
|
|
|
struct _virCgroupBackend {
|
|
virCgroupBackendType type;
|
|
|
|
/* Mandatory callbacks that need to be implemented for every backend. */
|
|
virCgroupAvailableCB available;
|
|
virCgroupValidateMachineGroupCB validateMachineGroup;
|
|
virCgroupCopyMountsCB copyMounts;
|
|
virCgroupCopyPlacementCB copyPlacement;
|
|
virCgroupDetectMountsCB detectMounts;
|
|
virCgroupDetectPlacementCB detectPlacement;
|
|
virCgroupValidatePlacementCB validatePlacement;
|
|
virCgroupStealPlacementCB stealPlacement;
|
|
virCgroupDetectControllersCB detectControllers;
|
|
virCgroupHasControllerCB hasController;
|
|
virCgroupGetAnyControllerCB getAnyController;
|
|
virCgroupPathOfControllerCB pathOfController;
|
|
virCgroupMakeGroupCB makeGroup;
|
|
virCgroupRemoveCB remove;
|
|
virCgroupAddTaskCB addTask;
|
|
virCgroupHasEmptyTasksCB hasEmptyTasks;
|
|
virCgroupKillRecursiveCB killRecursive;
|
|
virCgroupBindMountCB bindMount;
|
|
virCgroupSetOwnerCB setOwner;
|
|
|
|
/* Optional cgroup controller specific callbacks. */
|
|
virCgroupSetBlkioWeightCB setBlkioWeight;
|
|
virCgroupGetBlkioWeightCB getBlkioWeight;
|
|
virCgroupGetBlkioIoServicedCB getBlkioIoServiced;
|
|
virCgroupGetBlkioIoDeviceServicedCB getBlkioIoDeviceServiced;
|
|
virCgroupSetBlkioDeviceWeightCB setBlkioDeviceWeight;
|
|
virCgroupGetBlkioDeviceWeightCB getBlkioDeviceWeight;
|
|
virCgroupSetBlkioDeviceReadIopsCB setBlkioDeviceReadIops;
|
|
virCgroupGetBlkioDeviceReadIopsCB getBlkioDeviceReadIops;
|
|
virCgroupSetBlkioDeviceWriteIopsCB setBlkioDeviceWriteIops;
|
|
virCgroupGetBlkioDeviceWriteIopsCB getBlkioDeviceWriteIops;
|
|
virCgroupSetBlkioDeviceReadBpsCB setBlkioDeviceReadBps;
|
|
virCgroupGetBlkioDeviceReadBpsCB getBlkioDeviceReadBps;
|
|
virCgroupSetBlkioDeviceWriteBpsCB setBlkioDeviceWriteBps;
|
|
virCgroupGetBlkioDeviceWriteBpsCB getBlkioDeviceWriteBps;
|
|
|
|
virCgroupSetMemoryCB setMemory;
|
|
virCgroupGetMemoryStatCB getMemoryStat;
|
|
virCgroupGetMemoryUsageCB getMemoryUsage;
|
|
virCgroupSetMemoryHardLimitCB setMemoryHardLimit;
|
|
virCgroupGetMemoryHardLimitCB getMemoryHardLimit;
|
|
virCgroupSetMemorySoftLimitCB setMemorySoftLimit;
|
|
virCgroupGetMemorySoftLimitCB getMemorySoftLimit;
|
|
virCgroupSetMemSwapHardLimitCB setMemSwapHardLimit;
|
|
virCgroupGetMemSwapHardLimitCB getMemSwapHardLimit;
|
|
virCgroupGetMemSwapUsageCB getMemSwapUsage;
|
|
|
|
virCgroupAllowDeviceCB allowDevice;
|
|
virCgroupDenyDeviceCB denyDevice;
|
|
virCgroupAllowAllDevicesCB allowAllDevices;
|
|
virCgroupDenyAllDevicesCB denyAllDevices;
|
|
|
|
virCgroupSetCpuSharesCB setCpuShares;
|
|
virCgroupGetCpuSharesCB getCpuShares;
|
|
virCgroupSetCpuCfsPeriodCB setCpuCfsPeriod;
|
|
virCgroupGetCpuCfsPeriodCB getCpuCfsPeriod;
|
|
virCgroupSetCpuCfsQuotaCB setCpuCfsQuota;
|
|
virCgroupGetCpuCfsQuotaCB getCpuCfsQuota;
|
|
virCgroupSupportsCpuBWCB supportsCpuBW;
|
|
|
|
virCgroupGetCpuacctUsageCB getCpuacctUsage;
|
|
virCgroupGetCpuacctPercpuUsageCB getCpuacctPercpuUsage;
|
|
virCgroupGetCpuacctStatCB getCpuacctStat;
|
|
|
|
virCgroupSetFreezerStateCB setFreezerState;
|
|
virCgroupGetFreezerStateCB getFreezerState;
|
|
|
|
virCgroupSetCpusetMemsCB setCpusetMems;
|
|
virCgroupGetCpusetMemsCB getCpusetMems;
|
|
virCgroupSetCpusetMemoryMigrateCB setCpusetMemoryMigrate;
|
|
virCgroupGetCpusetMemoryMigrateCB getCpusetMemoryMigrate;
|
|
virCgroupSetCpusetCpusCB setCpusetCpus;
|
|
virCgroupGetCpusetCpusCB getCpusetCpus;
|
|
};
|
|
typedef struct _virCgroupBackend virCgroupBackend;
|
|
typedef virCgroupBackend *virCgroupBackendPtr;
|
|
|
|
void
|
|
virCgroupBackendRegister(virCgroupBackendPtr backend);
|
|
|
|
virCgroupBackendPtr *
|
|
virCgroupBackendGetAll(void);
|
|
|
|
virCgroupBackendPtr
|
|
virCgroupBackendForController(virCgroupPtr group,
|
|
unsigned int controller);
|
|
|
|
# define VIR_CGROUP_BACKEND_CALL(group, controller, func, ret, ...) \
|
|
virCgroupBackendPtr backend = virCgroupBackendForController(group, controller); \
|
|
if (!backend) { \
|
|
virReportError(VIR_ERR_INTERNAL_ERROR, \
|
|
_("failed to get cgroup backend for '%s'"), #func); \
|
|
return ret; \
|
|
} \
|
|
if (!backend->func) { \
|
|
virReportError(VIR_ERR_OPERATION_UNSUPPORTED, \
|
|
_("operation '%s' not supported"), #func); \
|
|
return ret; \
|
|
} \
|
|
return backend->func(group, ##__VA_ARGS__);
|
|
|
|
#endif /* LIBVIRT_VIRCGROUPBACKEND_H */
|