1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
#pragma once
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <stdbool.h>
#include "list.h"
#include "time-util.h"
#include "cgroup-util.h"
typedef struct CGroupContext CGroupContext;
typedef struct CGroupDeviceAllow CGroupDeviceAllow;
typedef struct CGroupIODeviceWeight CGroupIODeviceWeight;
typedef struct CGroupIODeviceLimit CGroupIODeviceLimit;
typedef struct CGroupBlockIODeviceWeight CGroupBlockIODeviceWeight;
typedef struct CGroupBlockIODeviceBandwidth CGroupBlockIODeviceBandwidth;
typedef enum CGroupDevicePolicy {
/* When devices listed, will allow those, plus built-in ones,
if none are listed will allow everything. */
CGROUP_AUTO,
/* Everything forbidden, except built-in ones and listed ones. */
CGROUP_CLOSED,
/* Everythings forbidden, except for the listed devices */
CGROUP_STRICT,
_CGROUP_DEVICE_POLICY_MAX,
_CGROUP_DEVICE_POLICY_INVALID = -1
} CGroupDevicePolicy;
struct CGroupDeviceAllow {
LIST_FIELDS(CGroupDeviceAllow, device_allow);
char *path;
bool r:1;
bool w:1;
bool m:1;
};
struct CGroupIODeviceWeight {
LIST_FIELDS(CGroupIODeviceWeight, device_weights);
char *path;
uint64_t weight;
};
struct CGroupIODeviceLimit {
LIST_FIELDS(CGroupIODeviceLimit, device_limits);
char *path;
uint64_t limits[_CGROUP_IO_LIMIT_TYPE_MAX];
};
struct CGroupBlockIODeviceWeight {
LIST_FIELDS(CGroupBlockIODeviceWeight, device_weights);
char *path;
uint64_t weight;
};
struct CGroupBlockIODeviceBandwidth {
LIST_FIELDS(CGroupBlockIODeviceBandwidth, device_bandwidths);
char *path;
uint64_t rbps;
uint64_t wbps;
};
struct CGroupContext {
bool cpu_accounting;
bool io_accounting;
bool blockio_accounting;
bool memory_accounting;
bool tasks_accounting;
/* For unified hierarchy */
uint64_t cpu_weight;
uint64_t startup_cpu_weight;
usec_t cpu_quota_per_sec_usec;
uint64_t io_weight;
uint64_t startup_io_weight;
LIST_HEAD(CGroupIODeviceWeight, io_device_weights);
LIST_HEAD(CGroupIODeviceLimit, io_device_limits);
uint64_t memory_low;
uint64_t memory_high;
uint64_t memory_max;
/* For legacy hierarchies */
uint64_t cpu_shares;
uint64_t startup_cpu_shares;
uint64_t blockio_weight;
uint64_t startup_blockio_weight;
LIST_HEAD(CGroupBlockIODeviceWeight, blockio_device_weights);
LIST_HEAD(CGroupBlockIODeviceBandwidth, blockio_device_bandwidths);
uint64_t memory_limit;
CGroupDevicePolicy device_policy;
LIST_HEAD(CGroupDeviceAllow, device_allow);
/* Common */
uint64_t tasks_max;
bool delegate;
};
#include "unit.h"
void cgroup_context_init(CGroupContext *c);
void cgroup_context_done(CGroupContext *c);
void cgroup_context_dump(CGroupContext *c, FILE* f, const char *prefix);
CGroupMask cgroup_context_get_mask(CGroupContext *c);
void cgroup_context_free_device_allow(CGroupContext *c, CGroupDeviceAllow *a);
void cgroup_context_free_io_device_weight(CGroupContext *c, CGroupIODeviceWeight *w);
void cgroup_context_free_io_device_limit(CGroupContext *c, CGroupIODeviceLimit *l);
void cgroup_context_free_blockio_device_weight(CGroupContext *c, CGroupBlockIODeviceWeight *w);
void cgroup_context_free_blockio_device_bandwidth(CGroupContext *c, CGroupBlockIODeviceBandwidth *b);
CGroupMask unit_get_own_mask(Unit *u);
CGroupMask unit_get_siblings_mask(Unit *u);
CGroupMask unit_get_members_mask(Unit *u);
CGroupMask unit_get_subtree_mask(Unit *u);
CGroupMask unit_get_target_mask(Unit *u);
CGroupMask unit_get_enable_mask(Unit *u);
void unit_update_cgroup_members_masks(Unit *u);
char *unit_default_cgroup_path(Unit *u);
int unit_set_cgroup_path(Unit *u, const char *path);
int unit_realize_cgroup(Unit *u);
void unit_release_cgroup(Unit *u);
void unit_prune_cgroup(Unit *u);
int unit_watch_cgroup(Unit *u);
int unit_attach_pids_to_cgroup(Unit *u);
int manager_setup_cgroup(Manager *m);
void manager_shutdown_cgroup(Manager *m, bool delete);
unsigned manager_dispatch_cgroup_queue(Manager *m);
Unit *manager_get_unit_by_cgroup(Manager *m, const char *cgroup);
Unit *manager_get_unit_by_pid_cgroup(Manager *m, pid_t pid);
Unit* manager_get_unit_by_pid(Manager *m, pid_t pid);
int unit_search_main_pid(Unit *u, pid_t *ret);
int unit_watch_all_pids(Unit *u);
int unit_get_memory_current(Unit *u, uint64_t *ret);
int unit_get_tasks_current(Unit *u, uint64_t *ret);
int unit_get_cpu_usage(Unit *u, nsec_t *ret);
int unit_reset_cpu_usage(Unit *u);
bool unit_cgroup_delegate(Unit *u);
int unit_notify_cgroup_empty(Unit *u);
int manager_notify_cgroup_empty(Manager *m, const char *group);
void unit_invalidate_cgroup(Unit *u, CGroupMask m);
void manager_invalidate_startup_units(Manager *m);
const char* cgroup_device_policy_to_string(CGroupDevicePolicy i) _const_;
CGroupDevicePolicy cgroup_device_policy_from_string(const char *s) _pure_;
|
