1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
7 This file is part of systemd.
9 Copyright 2010 Lennart Poettering
10 Copyright 2010 Maarten Lankhorst
12 systemd is free software; you can redistribute it and/or modify it
13 under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 2 of the License, or
15 (at your option) any later version.
17 systemd is distributed in the hope that it will be useful, but
18 WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 typedef struct Swap Swap
;
30 typedef enum SwapState
{
35 SWAP_ACTIVATING_SIGTERM
,
36 SWAP_ACTIVATING_SIGKILL
,
37 SWAP_DEACTIVATING_SIGTERM
,
38 SWAP_DEACTIVATING_SIGKILL
,
41 _SWAP_STATE_INVALID
= -1
44 typedef enum SwapExecCommand
{
47 _SWAP_EXEC_COMMAND_MAX
,
48 _SWAP_EXEC_COMMAND_INVALID
= -1
51 typedef struct SwapParameters
{
64 SwapParameters parameters_etc_fstab
;
65 SwapParameters parameters_proc_swaps
;
66 SwapParameters parameters_fragment
;
68 bool from_etc_fstab
:1;
69 bool from_proc_swaps
:1;
74 /* Used while looking for swaps that vanished or got added
75 * from/to /proc/swaps */
77 bool just_activated
:1;
81 ExecCommand exec_command
[_SWAP_EXEC_COMMAND_MAX
];
82 ExecContext exec_context
;
84 SwapState state
, deserialized_state
;
86 ExecCommand
* control_command
;
87 SwapExecCommand control_command_id
;
92 /* In order to be able to distinguish dependencies on
93 different device nodes we might end up creating multiple
94 devices for the same swap. We chain them up here. */
96 LIST_FIELDS(struct Swap
, same_proc_swaps
);
99 extern const UnitVTable swap_vtable
;
101 int swap_add_one(Manager
*m
, const char *what
, const char *what_proc_swaps
, int prio
, bool no_auto
, bool no_fail
, bool handle
, bool set_flags
);
103 int swap_add_one_mount_link(Swap
*s
, Mount
*m
);
105 int swap_dispatch_reload(Manager
*m
);
106 int swap_fd_event(Manager
*m
, int events
);
108 const char* swap_state_to_string(SwapState i
);
109 SwapState
swap_state_from_string(const char *s
);
111 const char* swap_exec_command_to_string(SwapExecCommand i
);
112 SwapExecCommand
swap_exec_command_from_string(const char *s
);