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9a05490933
Only accept cpu quota values in percentages, get rid of period definition. It's not clear whether the CFS period controllable per-cgroup even has a future in the kernel, hence let's simplify all this, hardcode the period to 100ms and only accept percentage based quota values.
126 lines
4.0 KiB
C
126 lines
4.0 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#pragma once
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/***
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This file is part of systemd.
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Copyright 2013 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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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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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "list.h"
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typedef struct CGroupContext CGroupContext;
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typedef struct CGroupDeviceAllow CGroupDeviceAllow;
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typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
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typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
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typedef enum CGroupDevicePolicy {
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/* When devices listed, will allow those, plus built-in ones,
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if none are listed will allow everything. */
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CGROUP_AUTO,
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/* Everything forbidden, except built-in ones and listed ones. */
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CGROUP_CLOSED,
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/* Everythings forbidden, except for the listed devices */
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CGROUP_STRICT,
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_CGROUP_DEVICE_POLICY_MAX,
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_CGROUP_DEVICE_POLICY_INVALID = -1
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} CGroupDevicePolicy;
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struct CGroupDeviceAllow {
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LIST_FIELDS(CGroupDeviceAllow, device_allow);
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char *path;
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bool r:1;
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bool w:1;
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bool m:1;
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};
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struct CGroupBlockIODeviceWeight {
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LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
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char *path;
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unsigned long weight;
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};
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struct CGroupBlockIODeviceBandwidth {
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LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
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char *path;
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uint64_t bandwidth;
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bool read;
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};
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struct CGroupContext {
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bool cpu_accounting;
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bool blockio_accounting;
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bool memory_accounting;
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unsigned long cpu_shares;
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unsigned long startup_cpu_shares;
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usec_t cpu_quota_per_sec_usec;
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unsigned long blockio_weight;
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unsigned long startup_blockio_weight;
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LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
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LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
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uint64_t memory_limit;
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CGroupDevicePolicy device_policy;
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LIST_HEAD(CGroupDeviceAllow, device_allow);
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};
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#include "unit.h"
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#include "manager.h"
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#include "cgroup-util.h"
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void cgroup_context_init(CGroupContext *c);
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void cgroup_context_done(CGroupContext *c);
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void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
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void cgroup_context_apply(CGroupContext *c, CGroupControllerMask mask, const char *path, ManagerState state);
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CGroupControllerMask cgroup_context_get_mask(CGroupContext *c);
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void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
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void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
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void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
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CGroupControllerMask unit_get_cgroup_mask(Unit *u);
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CGroupControllerMask unit_get_siblings_mask(Unit *u);
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CGroupControllerMask unit_get_members_mask(Unit *u);
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CGroupControllerMask unit_get_target_mask(Unit *u);
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void unit_update_cgroup_members_masks(Unit *u);
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int unit_realize_cgroup(Unit *u);
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void unit_destroy_cgroup(Unit *u);
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int manager_setup_cgroup(Manager *m);
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void manager_shutdown_cgroup(Manager *m, bool delete);
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unsigned manager_dispatch_cgroup_queue(Manager *m);
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Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
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Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
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pid_t unit_search_main_pid(Unit *u);
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int manager_notify_cgroup_empty(Manager *m, const char *group);
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const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
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CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;
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