4 This file is part of systemd.
6 Copyright 2013 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
25 //#include "time-util.h"
26 #include "cgroup-util.h"
28 #if 0 /// UNNEEDED by elogind
29 typedef struct CGroupContext CGroupContext;
30 typedef struct CGroupDeviceAllow CGroupDeviceAllow;
31 typedef struct CGroupIODeviceWeight CGroupIODeviceWeight;
32 typedef struct CGroupIODeviceLimit CGroupIODeviceLimit;
33 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
34 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
36 typedef enum CGroupDevicePolicy {
38 /* When devices listed, will allow those, plus built-in ones,
39 if none are listed will allow everything. */
42 /* Everything forbidden, except built-in ones and listed ones. */
45 /* Everythings forbidden, except for the listed devices */
48 _CGROUP_DEVICE_POLICY_MAX,
49 _CGROUP_DEVICE_POLICY_INVALID = -1
52 struct CGroupDeviceAllow {
53 LIST_FIELDS(CGroupDeviceAllow, device_allow);
60 struct CGroupIODeviceWeight {
61 LIST_FIELDS(CGroupIODeviceWeight, device_weights);
66 struct CGroupIODeviceLimit {
67 LIST_FIELDS(CGroupIODeviceLimit, device_limits);
69 uint64_t limits[_CGROUP_IO_LIMIT_TYPE_MAX];
72 struct CGroupBlockIODeviceWeight {
73 LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
78 struct CGroupBlockIODeviceBandwidth {
79 LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
85 struct CGroupContext {
88 bool blockio_accounting;
89 bool memory_accounting;
90 bool tasks_accounting;
92 /* For unified hierarchy */
94 uint64_t startup_io_weight;
95 LIST_HEAD(CGroupIODeviceWeight, io_device_weights);
96 LIST_HEAD(CGroupIODeviceLimit, io_device_limits);
102 /* For legacy hierarchies */
104 uint64_t startup_cpu_shares;
105 usec_t cpu_quota_per_sec_usec;
107 uint64_t blockio_weight;
108 uint64_t startup_blockio_weight;
109 LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
110 LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
112 uint64_t memory_limit;
114 CGroupDevicePolicy device_policy;
115 LIST_HEAD(CGroupDeviceAllow, device_allow);
123 #include "cgroup-util.h"
126 void cgroup_context_init(CGroupContext *c);
127 void cgroup_context_done(CGroupContext *c);
128 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
130 CGroupMask cgroup_context_get_mask(CGroupContext *c);
132 void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
133 void cgroup_context_free_io_device_weight(CGroupContext *c, CGroupIODeviceWeight *w);
134 void cgroup_context_free_io_device_limit(CGroupContext *c, CGroupIODeviceLimit *l);
135 void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
136 void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
138 CGroupMask unit_get_own_mask(Unit *u);
139 CGroupMask unit_get_siblings_mask(Unit *u);
140 CGroupMask unit_get_members_mask(Unit *u);
141 CGroupMask unit_get_subtree_mask(Unit *u);
143 CGroupMask unit_get_target_mask(Unit *u);
144 CGroupMask unit_get_enable_mask(Unit *u);
146 void unit_update_cgroup_members_masks(Unit *u);
148 char *unit_default_cgroup_path(Unit *u);
149 int unit_set_cgroup_path(Unit *u, const char *path);
151 int unit_realize_cgroup(Unit *u);
152 void unit_release_cgroup(Unit *u);
153 void unit_prune_cgroup(Unit *u);
154 int unit_watch_cgroup(Unit *u);
156 int unit_attach_pids_to_cgroup(Unit *u);
159 # define MANAGER_IS_SYSTEM(m) (1)
162 int manager_setup_cgroup(Manager *m);
163 void manager_shutdown_cgroup(Manager *m, bool delete);
165 #if 0 /// UNNEEDED by elogind
166 unsigned manager_dispatch_cgroup_queue(Manager *m);
168 Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
169 Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
170 Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
172 int unit_search_main_pid(Unit *u, pid_t *ret);
173 int unit_watch_all_pids(Unit *u);
175 int unit_get_memory_current(Unit *u, uint64_t *ret);
176 int unit_get_tasks_current(Unit *u, uint64_t *ret);
177 int unit_get_cpu_usage(Unit *u, nsec_t *ret);
178 int unit_reset_cpu_usage(Unit *u);
180 bool unit_cgroup_delegate(Unit *u);
182 int unit_notify_cgroup_empty(Unit *u);
183 int manager_notify_cgroup_empty(Manager *m, const char *group);
185 void unit_invalidate_cgroup(Unit *u, CGroupMask m);
187 void manager_invalidate_startup_units(Manager *m);
189 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
190 CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;