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);
101 uint64_t memory_swap_max;
103 /* For legacy hierarchies */
105 uint64_t startup_cpu_shares;
106 usec_t cpu_quota_per_sec_usec;
108 uint64_t blockio_weight;
109 uint64_t startup_blockio_weight;
110 LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
111 LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
113 uint64_t memory_limit;
115 CGroupDevicePolicy device_policy;
116 LIST_HEAD(CGroupDeviceAllow, device_allow);
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);
161 int manager_setup_cgroup(Manager *m);
162 void manager_shutdown_cgroup(Manager *m, bool delete);
164 #if 0 /// UNNEEDED by elogind
165 unsigned manager_dispatch_cgroup_queue(Manager *m);
167 Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
168 Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
169 Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
171 int unit_search_main_pid(Unit *u, pid_t *ret);
172 int unit_watch_all_pids(Unit *u);
174 int unit_get_memory_current(Unit *u, uint64_t *ret);
175 int unit_get_tasks_current(Unit *u, uint64_t *ret);
176 int unit_get_cpu_usage(Unit *u, nsec_t *ret);
177 int unit_reset_cpu_usage(Unit *u);
179 bool unit_cgroup_delegate(Unit *u);
181 int unit_notify_cgroup_empty(Unit *u);
183 int manager_notify_cgroup_empty(Manager *m, const char *group);
185 #if 0 /// UNNEEDED by elogind
186 void unit_invalidate_cgroup(Unit *u, CGroupMask m);
188 void manager_invalidate_startup_units(Manager *m);
190 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
191 CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;