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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
c2f1db8f | 2 | #pragma once |
07b0b134 ML |
3 | |
4 | /*** | |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2010 Lennart Poettering | |
8 | Copyright 2010 Maarten Lankhorst | |
07b0b134 ML |
9 | ***/ |
10 | ||
07630cea | 11 | #include "libudev.h" |
57b7a260 | 12 | #include "unit.h" |
9670d583 | 13 | |
07b0b134 ML |
14 | typedef struct Swap Swap; |
15 | ||
e04aad61 LP |
16 | typedef enum SwapExecCommand { |
17 | SWAP_EXEC_ACTIVATE, | |
18 | SWAP_EXEC_DEACTIVATE, | |
19 | _SWAP_EXEC_COMMAND_MAX, | |
20 | _SWAP_EXEC_COMMAND_INVALID = -1 | |
21 | } SwapExecCommand; | |
22 | ||
e1770af8 LP |
23 | typedef enum SwapResult { |
24 | SWAP_SUCCESS, | |
25 | SWAP_FAILURE_RESOURCES, | |
26 | SWAP_FAILURE_TIMEOUT, | |
27 | SWAP_FAILURE_EXIT_CODE, | |
28 | SWAP_FAILURE_SIGNAL, | |
29 | SWAP_FAILURE_CORE_DUMP, | |
07299350 | 30 | SWAP_FAILURE_START_LIMIT_HIT, |
e1770af8 LP |
31 | _SWAP_RESULT_MAX, |
32 | _SWAP_RESULT_INVALID = -1 | |
33 | } SwapResult; | |
34 | ||
5bcb0f2b LP |
35 | typedef struct SwapParameters { |
36 | char *what; | |
47cb901e | 37 | char *options; |
5bcb0f2b | 38 | int priority; |
5bcb0f2b LP |
39 | } SwapParameters; |
40 | ||
07b0b134 | 41 | struct Swap { |
ac155bb8 | 42 | Unit meta; |
07b0b134 | 43 | |
e04aad61 LP |
44 | char *what; |
45 | ||
9670d583 LP |
46 | /* If the device has already shown up, this is the device |
47 | * node, which might be different from what, due to | |
48 | * symlinks */ | |
49 | char *devnode; | |
50 | ||
4e85aff4 LP |
51 | SwapParameters parameters_proc_swaps; |
52 | SwapParameters parameters_fragment; | |
07b0b134 | 53 | |
4e85aff4 LP |
54 | bool from_proc_swaps:1; |
55 | bool from_fragment:1; | |
e04aad61 | 56 | |
e04aad61 LP |
57 | /* Used while looking for swaps that vanished or got added |
58 | * from/to /proc/swaps */ | |
59 | bool is_active:1; | |
60 | bool just_activated:1; | |
61 | ||
e1770af8 LP |
62 | SwapResult result; |
63 | ||
e04aad61 LP |
64 | usec_t timeout_usec; |
65 | ||
66 | ExecCommand exec_command[_SWAP_EXEC_COMMAND_MAX]; | |
67 | ExecContext exec_context; | |
4819ff03 | 68 | KillContext kill_context; |
4ad49000 | 69 | CGroupContext cgroup_context; |
e04aad61 | 70 | |
613b411c | 71 | ExecRuntime *exec_runtime; |
29206d46 | 72 | DynamicCreds dynamic_creds; |
613b411c | 73 | |
e04aad61 LP |
74 | SwapState state, deserialized_state; |
75 | ||
76 | ExecCommand* control_command; | |
77 | SwapExecCommand control_command_id; | |
78 | pid_t control_pid; | |
79 | ||
718db961 | 80 | sd_event_source *timer_event_source; |
e04aad61 | 81 | |
35b8ca3a | 82 | /* In order to be able to distinguish dependencies on |
e04aad61 LP |
83 | different device nodes we might end up creating multiple |
84 | devices for the same swap. We chain them up here. */ | |
85 | ||
9670d583 | 86 | LIST_FIELDS(struct Swap, same_devnode); |
07b0b134 ML |
87 | }; |
88 | ||
89 | extern const UnitVTable swap_vtable; | |
90 | ||
628c89cc LP |
91 | int swap_process_device_new(Manager *m, struct udev_device *dev); |
92 | int swap_process_device_remove(Manager *m, struct udev_device *dev); | |
9670d583 | 93 | |
44a6b1b6 ZJS |
94 | const char* swap_exec_command_to_string(SwapExecCommand i) _const_; |
95 | SwapExecCommand swap_exec_command_from_string(const char *s) _pure_; | |
07b0b134 | 96 | |
44a6b1b6 ZJS |
97 | const char* swap_result_to_string(SwapResult i) _const_; |
98 | SwapResult swap_result_from_string(const char *s) _pure_; | |
57b7a260 FS |
99 | |
100 | DEFINE_CAST(SWAP, Swap); |