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);
98 /* For legacy hierarchies */
100 uint64_t startup_cpu_shares;
101 usec_t cpu_quota_per_sec_usec;
103 uint64_t blockio_weight;
104 uint64_t startup_blockio_weight;
105 LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
106 LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
108 uint64_t memory_limit;
110 CGroupDevicePolicy device_policy;
111 LIST_HEAD(CGroupDeviceAllow, device_allow);
119 #include "cgroup-util.h"
122 void cgroup_context_init(CGroupContext *c);
123 void cgroup_context_done(CGroupContext *c);
124 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
125 void cgroup_context_apply(CGroupContext *c, CGroupMask mask, const char *path, ManagerState state);
127 CGroupMask cgroup_context_get_mask(CGroupContext *c);
129 void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
130 void cgroup_context_free_io_device_weight(CGroupContext *c, CGroupIODeviceWeight *w);
131 void cgroup_context_free_io_device_limit(CGroupContext *c, CGroupIODeviceLimit *l);
132 void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
133 void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
135 CGroupMask unit_get_own_mask(Unit *u);
136 CGroupMask unit_get_siblings_mask(Unit *u);
137 CGroupMask unit_get_members_mask(Unit *u);
138 CGroupMask unit_get_subtree_mask(Unit *u);
140 CGroupMask unit_get_target_mask(Unit *u);
141 CGroupMask unit_get_enable_mask(Unit *u);
143 void unit_update_cgroup_members_masks(Unit *u);
145 char *unit_default_cgroup_path(Unit *u);
146 int unit_set_cgroup_path(Unit *u, const char *path);
148 int unit_realize_cgroup(Unit *u);
149 void unit_release_cgroup(Unit *u);
150 void unit_prune_cgroup(Unit *u);
151 int unit_watch_cgroup(Unit *u);
153 int unit_attach_pids_to_cgroup(Unit *u);
156 # define MANAGER_IS_SYSTEM(m) (1)
159 int manager_setup_cgroup(Manager *m);
160 void manager_shutdown_cgroup(Manager *m, bool delete);
162 #if 0 /// UNNEEDED by elogind
163 unsigned manager_dispatch_cgroup_queue(Manager *m);
165 Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
166 Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
167 Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
169 int unit_search_main_pid(Unit *u, pid_t *ret);
170 int unit_watch_all_pids(Unit *u);
172 int unit_get_memory_current(Unit *u, uint64_t *ret);
173 int unit_get_tasks_current(Unit *u, uint64_t *ret);
174 int unit_get_cpu_usage(Unit *u, nsec_t *ret);
175 int unit_reset_cpu_usage(Unit *u);
177 bool unit_cgroup_delegate(Unit *u);
179 int unit_notify_cgroup_empty(Unit *u);
180 int manager_notify_cgroup_empty(Manager *m, const char *group);
182 void unit_invalidate_cgroup(Unit *u, CGroupMask m);
184 void manager_invalidate_startup_units(Manager *m);
186 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
187 CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;