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"
28 #if 0 /// UNNEEDED by elogind
29 typedef struct CGroupContext CGroupContext;
30 Stypedef struct CGroupDeviceAllow CGroupDeviceAllow;
31 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
32 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
34 /* Maximum value for fixed (manual) net class ID assignment,
35 * and also the value at which the range of automatic assignments starts
37 #define CGROUP_NETCLASS_FIXED_MAX UINT32_C(65535)
39 typedef struct CGroupContext CGroupContext;
40 typedef struct CGroupDeviceAllow CGroupDeviceAllow;
41 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
42 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
44 typedef enum CGroupDevicePolicy {
46 /* When devices listed, will allow those, plus built-in ones,
47 if none are listed will allow everything. */
50 /* Everything forbidden, except built-in ones and listed ones. */
53 /* Everythings forbidden, except for the listed devices */
56 _CGROUP_DEVICE_POLICY_MAX,
57 _CGROUP_DEVICE_POLICY_INVALID = -1
60 typedef enum CGroupNetClassType {
61 /* Default - do not assign a net class */
62 CGROUP_NETCLASS_TYPE_NONE,
64 /* Automatically assign a net class */
65 CGROUP_NETCLASS_TYPE_AUTO,
67 /* Assign the net class that was provided by the user */
68 CGROUP_NETCLASS_TYPE_FIXED,
71 struct CGroupDeviceAllow {
72 LIST_FIELDS(CGroupDeviceAllow, device_allow);
79 struct CGroupBlockIODeviceWeight {
80 LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
85 struct CGroupBlockIODeviceBandwidth {
86 LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
92 struct CGroupContext {
94 bool blockio_accounting;
95 bool memory_accounting;
96 bool tasks_accounting;
99 uint64_t startup_cpu_shares;
100 usec_t cpu_quota_per_sec_usec;
102 uint64_t blockio_weight;
103 uint64_t startup_blockio_weight;
104 LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
105 LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
107 uint64_t memory_limit;
109 CGroupDevicePolicy device_policy;
110 LIST_HEAD(CGroupDeviceAllow, device_allow);
112 CGroupNetClassType netclass_type;
113 uint32_t netclass_id;
120 #include "cgroup-util.h"
123 void cgroup_context_init(CGroupContext *c);
124 void cgroup_context_done(CGroupContext *c);
125 void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
126 void cgroup_context_apply(CGroupContext *c, CGroupMask mask, const char *path, uint32_t netclass_id, ManagerState state);
128 CGroupMask cgroup_context_get_mask(CGroupContext *c);
130 void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
131 void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
132 void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
134 CGroupMask unit_get_own_mask(Unit *u);
135 CGroupMask unit_get_siblings_mask(Unit *u);
136 CGroupMask unit_get_members_mask(Unit *u);
137 CGroupMask unit_get_subtree_mask(Unit *u);
139 vCGroupMask unit_get_target_mask(Unit *u);
140 CGroupMask unit_get_enable_mask(Unit *u);
142 void unit_update_cgroup_members_masks(Unit *u);
144 har *unit_default_cgroup_path(Unit *u);
145 int unit_set_cgroup_path(Unit *u, const char *path);
147 int unit_realize_cgroup(Unit *u);
148 void unit_release_cgroup(Unit *u);
149 void unit_prune_cgroup(Unit *u);
150 int unit_watch_cgroup(Unit *u);
152 int unit_attach_pids_to_cgroup(Unit *u);
154 int unit_add_to_netclass_cgroup(Unit *u);
155 int unit_remove_from_netclass_cgroup(Unit *u);
158 int manager_setup_cgroup(Manager *m);
159 void manager_shutdown_cgroup(Manager *m, bool delete);
161 #if 0 /// UNNEEDED by elogind
162 unsigned manager_dispatch_cgroup_queue(Manager *m);
164 Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
165 Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
166 Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
168 int unit_search_main_pid(Unit *u, pid_t *ret);
169 int unit_watch_all_pids(Unit *u);
171 int unit_get_memory_current(Unit *u, uint64_t *ret);
172 int unit_get_tasks_current(Unit *u, uint64_t *ret);
173 int unit_get_cpu_usage(Unit *u, nsec_t *ret);
174 int unit_reset_cpu_usage(Unit *u);
176 bool unit_cgroup_delegate(Unit *u);
178 int unit_notify_cgroup_empty(Unit *u);
179 int manager_notify_cgroup_empty(Manager *m, const char *group);
181 void unit_invalidate_cgroup(Unit *u, CGroupMask m);
183 void manager_invalidate_startup_units(Manager *m);
185 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
186 CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;