1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2013 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
27 #include "time-util.h"
29 typedef struct CGroupContext CGroupContext
;
30 typedef struct CGroupDeviceAllow CGroupDeviceAllow
;
31 typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight
;
32 typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth
;
34 typedef enum CGroupDevicePolicy
{
36 /* When devices listed, will allow those, plus built-in ones,
37 if none are listed will allow everything. */
40 /* Everything forbidden, except built-in ones and listed ones. */
43 /* Everythings forbidden, except for the listed devices */
46 _CGROUP_DEVICE_POLICY_MAX
,
47 _CGROUP_DEVICE_POLICY_INVALID
= -1
50 struct CGroupDeviceAllow
{
51 LIST_FIELDS(CGroupDeviceAllow
, device_allow
);
58 struct CGroupBlockIODeviceWeight
{
59 LIST_FIELDS(CGroupBlockIODeviceWeight
, device_weights
);
64 struct CGroupBlockIODeviceBandwidth
{
65 LIST_FIELDS(CGroupBlockIODeviceBandwidth
, device_bandwidths
);
71 struct CGroupContext
{
73 bool blockio_accounting
;
74 bool memory_accounting
;
75 bool tasks_accounting
;
78 uint64_t startup_cpu_shares
;
79 usec_t cpu_quota_per_sec_usec
;
81 uint64_t blockio_weight
;
82 uint64_t startup_blockio_weight
;
83 LIST_HEAD(CGroupBlockIODeviceWeight
, blockio_device_weights
);
84 LIST_HEAD(CGroupBlockIODeviceBandwidth
, blockio_device_bandwidths
);
86 uint64_t memory_limit
;
88 CGroupDevicePolicy device_policy
;
89 LIST_HEAD(CGroupDeviceAllow
, device_allow
);
97 #include "cgroup-util.h"
99 void cgroup_context_init(CGroupContext
*c
);
100 void cgroup_context_done(CGroupContext
*c
);
101 void cgroup_context_dump(CGroupContext
*c
, FILE* f
, const char *prefix
);
102 void cgroup_context_apply(CGroupContext
*c
, CGroupMask mask
, const char *path
, ManagerState state
);
104 CGroupMask
cgroup_context_get_mask(CGroupContext
*c
);
106 void cgroup_context_free_device_allow(CGroupContext
*c
, CGroupDeviceAllow
*a
);
107 void cgroup_context_free_blockio_device_weight(CGroupContext
*c
, CGroupBlockIODeviceWeight
*w
);
108 void cgroup_context_free_blockio_device_bandwidth(CGroupContext
*c
, CGroupBlockIODeviceBandwidth
*b
);
110 CGroupMask
unit_get_own_mask(Unit
*u
);
111 CGroupMask
unit_get_siblings_mask(Unit
*u
);
112 CGroupMask
unit_get_members_mask(Unit
*u
);
113 CGroupMask
unit_get_subtree_mask(Unit
*u
);
115 CGroupMask
unit_get_target_mask(Unit
*u
);
116 CGroupMask
unit_get_enable_mask(Unit
*u
);
118 void unit_update_cgroup_members_masks(Unit
*u
);
120 char *unit_default_cgroup_path(Unit
*u
);
121 int unit_set_cgroup_path(Unit
*u
, const char *path
);
123 int unit_realize_cgroup(Unit
*u
);
124 void unit_release_cgroup(Unit
*u
);
125 void unit_prune_cgroup(Unit
*u
);
126 int unit_watch_cgroup(Unit
*u
);
128 int unit_attach_pids_to_cgroup(Unit
*u
);
130 int manager_setup_cgroup(Manager
*m
);
131 void manager_shutdown_cgroup(Manager
*m
, bool delete);
133 unsigned manager_dispatch_cgroup_queue(Manager
*m
);
135 Unit
*manager_get_unit_by_cgroup(Manager
*m
, const char *cgroup
);
136 Unit
*manager_get_unit_by_pid_cgroup(Manager
*m
, pid_t pid
);
137 Unit
* manager_get_unit_by_pid(Manager
*m
, pid_t pid
);
139 int unit_search_main_pid(Unit
*u
, pid_t
*ret
);
140 int unit_watch_all_pids(Unit
*u
);
142 int unit_get_memory_current(Unit
*u
, uint64_t *ret
);
143 int unit_get_tasks_current(Unit
*u
, uint64_t *ret
);
144 int unit_get_cpu_usage(Unit
*u
, nsec_t
*ret
);
145 int unit_reset_cpu_usage(Unit
*u
);
147 bool unit_cgroup_delegate(Unit
*u
);
149 int unit_notify_cgroup_empty(Unit
*u
);
150 int manager_notify_cgroup_empty(Manager
*m
, const char *group
);
152 void unit_invalidate_cgroup(Unit
*u
, CGroupMask m
);
154 void manager_invalidate_startup_units(Manager
*m
);
156 const char* cgroup_device_policy_to_string(CGroupDevicePolicy i
) _const_
;
157 CGroupDevicePolicy
cgroup_device_policy_from_string(const char *s
) _pure_
;