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+/*-*- 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/>.
+***/
+
+typedef struct Swap Swap;
+
+#include "unit.h"
+
+typedef enum SwapState {
+ SWAP_DEAD,
+ SWAP_ACTIVATING,
+ 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 struct SwapParameters {
+ char *what;
+ int priority;
+ bool noauto:1;
+ bool nofail:1;
+} SwapParameters;
+
+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;
+
+struct Swap {
+ Unit meta;
+
+ char *what;
+
+ 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;
+
+ SwapState state, deserialized_state;
+
+ ExecCommand* control_command;
+ SwapExecCommand control_command_id;
+ pid_t control_pid;
+
+ Watch timer_watch;
+
+ /* 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_proc_swaps);
+};
+
+extern const UnitVTable swap_vtable;
+
+int swap_add_one_mount_link(Swap *s, Mount *m);
+
+int swap_dispatch_reload(Manager *m);
+int swap_fd_event(Manager *m, int events);
+
+const char* swap_state_to_string(SwapState i);
+SwapState swap_state_from_string(const char *s);
+
+const char* swap_exec_command_to_string(SwapExecCommand i);
+SwapExecCommand swap_exec_command_from_string(const char *s);
+
+const char* swap_result_to_string(SwapResult i);
+SwapResult swap_result_from_string(const char *s);