44a6b1b680
I'm assuming that it's fine if a _const_ or _pure_ function calls assert. It is assumed that the assert won't trigger, and even if it does, it can only trigger on the first call with a given set of parameters, and we don't care if the compiler moves the order of calls.
109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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#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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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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typedef struct Path Path;
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#include "unit.h"
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#include "mount.h"
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typedef enum PathState {
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PATH_DEAD,
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PATH_WAITING,
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PATH_RUNNING,
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PATH_FAILED,
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_PATH_STATE_MAX,
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_PATH_STATE_INVALID = -1
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} PathState;
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typedef enum PathType {
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PATH_EXISTS,
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PATH_EXISTS_GLOB,
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PATH_DIRECTORY_NOT_EMPTY,
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PATH_CHANGED,
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PATH_MODIFIED,
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_PATH_TYPE_MAX,
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_PATH_TYPE_INVALID = -1
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} PathType;
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typedef struct PathSpec {
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char *path;
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Watch watch;
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LIST_FIELDS(struct PathSpec, spec);
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PathType type;
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int inotify_fd;
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int primary_wd;
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bool previous_exists;
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} PathSpec;
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int path_spec_watch(PathSpec *s, Unit *u);
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void path_spec_unwatch(PathSpec *s, Unit *u);
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int path_spec_fd_event(PathSpec *s, uint32_t events);
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void path_spec_done(PathSpec *s);
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static inline bool path_spec_owns_inotify_fd(PathSpec *s, int fd) {
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return s->inotify_fd == fd;
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}
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typedef enum PathResult {
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PATH_SUCCESS,
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PATH_FAILURE_RESOURCES,
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_PATH_RESULT_MAX,
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_PATH_RESULT_INVALID = -1
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} PathResult;
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struct Path {
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Unit meta;
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LIST_HEAD(PathSpec, specs);
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PathState state, deserialized_state;
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bool inotify_triggered;
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bool make_directory;
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mode_t directory_mode;
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PathResult result;
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};
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/* Called from the mount code figure out if a mount is a dependency of
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* any of the paths of this path object */
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int path_add_one_mount_link(Path *p, Mount *m);
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void path_free_specs(Path *p);
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extern const UnitVTable path_vtable;
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const char* path_state_to_string(PathState i) _const_;
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PathState path_state_from_string(const char *s) _pure_;
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const char* path_type_to_string(PathType i) _const_;
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PathType path_type_from_string(const char *s) _pure_;
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const char* path_result_to_string(PathResult i) _const_;
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PathResult path_result_from_string(const char *s) _pure_;
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