mirror of
https://github.com/systemd/systemd.git
synced 2024-11-07 18:27:04 +03:00
132 lines
3.7 KiB
C
132 lines
3.7 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
#pragma once
|
|
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2010 Lennart Poettering
|
|
Copyright 2010 Maarten Lankhorst
|
|
|
|
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 <libudev.h>
|
|
|
|
typedef struct Swap Swap;
|
|
|
|
#include "unit.h"
|
|
|
|
typedef enum SwapState {
|
|
SWAP_DEAD,
|
|
SWAP_ACTIVATING, /* /sbin/swapon is running, but the swap not yet enabled. */
|
|
SWAP_ACTIVATING_DONE, /* /sbin/swapon is running, and the swap is done. */
|
|
SWAP_ACTIVE,
|
|
SWAP_DEACTIVATING,
|
|
SWAP_ACTIVATING_SIGTERM,
|
|
SWAP_ACTIVATING_SIGKILL,
|
|
SWAP_DEACTIVATING_SIGTERM,
|
|
SWAP_DEACTIVATING_SIGKILL,
|
|
SWAP_FAILED,
|
|
_SWAP_STATE_MAX,
|
|
_SWAP_STATE_INVALID = -1
|
|
} SwapState;
|
|
|
|
typedef enum SwapExecCommand {
|
|
SWAP_EXEC_ACTIVATE,
|
|
SWAP_EXEC_DEACTIVATE,
|
|
_SWAP_EXEC_COMMAND_MAX,
|
|
_SWAP_EXEC_COMMAND_INVALID = -1
|
|
} SwapExecCommand;
|
|
|
|
typedef enum SwapResult {
|
|
SWAP_SUCCESS,
|
|
SWAP_FAILURE_RESOURCES,
|
|
SWAP_FAILURE_TIMEOUT,
|
|
SWAP_FAILURE_EXIT_CODE,
|
|
SWAP_FAILURE_SIGNAL,
|
|
SWAP_FAILURE_CORE_DUMP,
|
|
_SWAP_RESULT_MAX,
|
|
_SWAP_RESULT_INVALID = -1
|
|
} SwapResult;
|
|
|
|
typedef struct SwapParameters {
|
|
char *what;
|
|
char *discard;
|
|
int priority;
|
|
bool noauto:1;
|
|
bool nofail:1;
|
|
} SwapParameters;
|
|
|
|
struct Swap {
|
|
Unit meta;
|
|
|
|
char *what;
|
|
|
|
/* If the device has already shown up, this is the device
|
|
* node, which might be different from what, due to
|
|
* symlinks */
|
|
char *devnode;
|
|
|
|
SwapParameters parameters_proc_swaps;
|
|
SwapParameters parameters_fragment;
|
|
|
|
bool from_proc_swaps:1;
|
|
bool from_fragment:1;
|
|
|
|
/* Used while looking for swaps that vanished or got added
|
|
* from/to /proc/swaps */
|
|
bool is_active:1;
|
|
bool just_activated:1;
|
|
|
|
SwapResult result;
|
|
|
|
usec_t timeout_usec;
|
|
|
|
ExecCommand exec_command[_SWAP_EXEC_COMMAND_MAX];
|
|
ExecContext exec_context;
|
|
KillContext kill_context;
|
|
CGroupContext cgroup_context;
|
|
|
|
ExecRuntime *exec_runtime;
|
|
|
|
SwapState state, deserialized_state;
|
|
|
|
ExecCommand* control_command;
|
|
SwapExecCommand control_command_id;
|
|
pid_t control_pid;
|
|
|
|
sd_event_source *timer_event_source;
|
|
|
|
/* In order to be able to distinguish dependencies on
|
|
different device nodes we might end up creating multiple
|
|
devices for the same swap. We chain them up here. */
|
|
|
|
LIST_FIELDS(struct Swap, same_devnode);
|
|
};
|
|
|
|
extern const UnitVTable swap_vtable;
|
|
|
|
int swap_process_new_device(Manager *m, struct udev_device *dev);
|
|
int swap_process_removed_device(Manager *m, struct udev_device *dev);
|
|
|
|
const char* swap_state_to_string(SwapState i) _const_;
|
|
SwapState swap_state_from_string(const char *s) _pure_;
|
|
|
|
const char* swap_exec_command_to_string(SwapExecCommand i) _const_;
|
|
SwapExecCommand swap_exec_command_from_string(const char *s) _pure_;
|
|
|
|
const char* swap_result_to_string(SwapResult i) _const_;
|
|
SwapResult swap_result_from_string(const char *s) _pure_;
|