112 lines
3.1 KiB
C
112 lines
3.1 KiB
C
#pragma once
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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Copyright 2010 Maarten Lankhorst
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include "libudev.h"
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typedef struct Swap Swap;
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typedef enum SwapExecCommand {
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SWAP_EXEC_ACTIVATE,
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SWAP_EXEC_DEACTIVATE,
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_SWAP_EXEC_COMMAND_MAX,
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_SWAP_EXEC_COMMAND_INVALID = -1
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} SwapExecCommand;
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typedef enum SwapResult {
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SWAP_SUCCESS,
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SWAP_FAILURE_RESOURCES,
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SWAP_FAILURE_TIMEOUT,
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SWAP_FAILURE_EXIT_CODE,
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SWAP_FAILURE_SIGNAL,
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SWAP_FAILURE_CORE_DUMP,
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SWAP_FAILURE_START_LIMIT_HIT,
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_SWAP_RESULT_MAX,
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_SWAP_RESULT_INVALID = -1
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} SwapResult;
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typedef struct SwapParameters {
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char *what;
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char *options;
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int priority;
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} SwapParameters;
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struct Swap {
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Unit meta;
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char *what;
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/* If the device has already shown up, this is the device
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* node, which might be different from what, due to
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* symlinks */
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char *devnode;
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SwapParameters parameters_proc_swaps;
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SwapParameters parameters_fragment;
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bool from_proc_swaps:1;
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bool from_fragment:1;
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/* Used while looking for swaps that vanished or got added
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* from/to /proc/swaps */
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bool is_active:1;
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bool just_activated:1;
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bool reset_accounting:1;
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SwapResult result;
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usec_t timeout_usec;
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ExecCommand exec_command[_SWAP_EXEC_COMMAND_MAX];
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ExecContext exec_context;
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KillContext kill_context;
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CGroupContext cgroup_context;
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ExecRuntime *exec_runtime;
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DynamicCreds dynamic_creds;
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SwapState state, deserialized_state;
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ExecCommand* control_command;
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SwapExecCommand control_command_id;
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pid_t control_pid;
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sd_event_source *timer_event_source;
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/* In order to be able to distinguish dependencies on
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different device nodes we might end up creating multiple
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devices for the same swap. We chain them up here. */
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LIST_FIELDS(struct Swap, same_devnode);
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};
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extern const UnitVTable swap_vtable;
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int swap_process_device_new(Manager *m, struct udev_device *dev);
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int swap_process_device_remove(Manager *m, struct udev_device *dev);
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const char* swap_exec_command_to_string(SwapExecCommand i) _const_;
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SwapExecCommand swap_exec_command_from_string(const char *s) _pure_;
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const char* swap_result_to_string(SwapResult i) _const_;
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SwapResult swap_result_from_string(const char *s) _pure_;
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