File: cgrouprc.h

package info (click to toggle)
android-platform-tools 34.0.5-12
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 150,900 kB
  • sloc: cpp: 805,786; java: 293,500; ansic: 128,288; xml: 127,491; python: 41,481; sh: 14,245; javascript: 9,665; cs: 3,846; asm: 2,049; makefile: 1,917; yacc: 440; awk: 368; ruby: 183; sql: 140; perl: 88; lex: 67
file content (95 lines) | stat: -rw-r--r-- 3,039 bytes parent folder | download | duplicates (2)
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
/*
 * Copyright (C) 2019 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#pragma once

#include <sys/cdefs.h>
#include <stdint.h>

__BEGIN_DECLS

// For host builds, __INTRODUCED_IN is not defined.
#ifndef __INTRODUCED_IN
#define __INTRODUCED_IN(x)
#endif

struct ACgroupController;
typedef struct ACgroupController ACgroupController;

// ACgroupFile

/**
 * Returns file version. See android::cgrouprc::format::CgroupFile for a list of valid versions
 * for the file.
 * If ACgroupFile_init() isn't called, initialization will be done first.
 * If initialization failed, return 0.
 */
__attribute__((warn_unused_result)) uint32_t ACgroupFile_getVersion() __INTRODUCED_IN(29);

/**
 * Returns the number of controllers.
 * If ACgroupFile_init() isn't called, initialization will be done first.
 * If initialization failed, return 0.
 */
__attribute__((warn_unused_result)) uint32_t ACgroupFile_getControllerCount() __INTRODUCED_IN(29);

/**
 * Returns the controller at the given index.
 * Returnss nullptr if the given index exceeds getControllerCount().
 * If ACgroupFile_init() isn't called, initialization will be done first.
 * If initialization failed, return 0.
 */
__attribute__((warn_unused_result)) const ACgroupController* ACgroupFile_getController(
        uint32_t index) __INTRODUCED_IN(29);

// ACgroupController

/**
 * Returns the version of the given controller.
 * If the given controller is null, return 0.
 */
__attribute__((warn_unused_result)) uint32_t ACgroupController_getVersion(const ACgroupController*)
        __INTRODUCED_IN(29);

/**
 * Flag bitmask used in ACgroupController_getFlags
 */
#define CGROUPRC_CONTROLLER_FLAG_MOUNTED 0x1
#define CGROUPRC_CONTROLLER_FLAG_NEEDS_ACTIVATION 0x2
#define CGROUPRC_CONTROLLER_FLAG_OPTIONAL 0x4

/**
 * Returns the flags bitmask of the given controller.
 * If the given controller is null, return 0.
 */
__attribute__((warn_unused_result, weak)) uint32_t ACgroupController_getFlags(
        const ACgroupController*) __INTRODUCED_IN(30);

/**
 * Returns the name of the given controller.
 * If the given controller is null, return nullptr.
 */
__attribute__((warn_unused_result)) const char* ACgroupController_getName(const ACgroupController*)
        __INTRODUCED_IN(29);

/**
 * Returns the path of the given controller.
 * If the given controller is null, return nullptr.
 */
__attribute__((warn_unused_result)) const char* ACgroupController_getPath(const ACgroupController*)
        __INTRODUCED_IN(29);

__END_DECLS