cgroup.h revision bc432dc7eb62c5671f2b741a86a66393adb350dc
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#pragma once
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd 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.
systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include "list.h"
typedef struct CGroupContext CGroupContext;
typedef struct CGroupDeviceAllow CGroupDeviceAllow;
typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
typedef enum CGroupDevicePolicy {
/* When devices listed, will allow those, plus built-in ones,
if none are listed will allow everything. */
CGROUP_AUTO,
/* Everything forbidden, except built-in ones and listed ones. */
CGROUP_CLOSED,
/* Everythings forbidden, except for the listed devices */
CGROUP_STRICT,
_CGROUP_DEVICE_POLICY_MAX,
_CGROUP_DEVICE_POLICY_INVALID = -1
} CGroupDevicePolicy;
struct CGroupDeviceAllow {
LIST_FIELDS(CGroupDeviceAllow, device_allow);
char *path;
bool r:1;
bool w:1;
bool m:1;
};
struct CGroupBlockIODeviceWeight {
LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
char *path;
unsigned long weight;
};
struct CGroupBlockIODeviceBandwidth {
LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
char *path;
uint64_t bandwidth;
bool read;
};
struct CGroupContext {
bool cpu_accounting;
bool blockio_accounting;
bool memory_accounting;
unsigned long cpu_shares;
unsigned long blockio_weight;
LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
uint64_t memory_limit;
CGroupDevicePolicy device_policy;
LIST_HEAD(CGroupDeviceAllow, device_allow);
};
#include "unit.h"
#include "manager.h"
#include "cgroup-util.h"
void cgroup_context_init(CGroupContext *c);
void cgroup_context_done(CGroupContext *c);
void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
void cgroup_context_apply(CGroupContext *c, CGroupControllerMask mask, const char *path);
CGroupControllerMask cgroup_context_get_mask(CGroupContext *c);
void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
CGroupControllerMask unit_get_cgroup_mask(Unit *u);
CGroupControllerMask unit_get_siblings_mask(Unit *u);
CGroupControllerMask unit_get_members_mask(Unit *u);
CGroupControllerMask unit_get_target_mask(Unit *u);
void unit_update_cgroup_members_masks(Unit *u);
int unit_realize_cgroup(Unit *u);
void unit_destroy_cgroup(Unit *u);
int manager_setup_cgroup(Manager *m);
void manager_shutdown_cgroup(Manager *m, bool delete);
unsigned manager_dispatch_cgroup_queue(Manager *m);
Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
pid_t unit_search_main_pid(Unit *u);
int manager_notify_cgroup_empty(Manager *m, const char *group);
const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;