mirror of
https://github.com/morgan9e/systemd
synced 2026-04-15 17:06:39 +09:00
bc6377762c
Otherwise, 1. X.path triggered X.service, and the service has waiting start job, 2. systemctl stop X.service 3. the waiting start job is cancelled to install new stop job, 4. path_trigger_notify() is called, and may reinstall new start job, 5. the stop job cannot be installed, and triggeres assertion. So, instead, let's add a defer event source, then enqueue the new start job after the stop (or any other type) job finished. Fixes https://github.com/systemd/systemd/issues/24577#issuecomment-1522628906.
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#pragma once
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typedef struct Path Path;
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typedef struct PathSpec PathSpec;
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typedef struct ActivationDetailsPath ActivationDetailsPath;
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#include "unit.h"
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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 = -EINVAL,
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} PathType;
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typedef struct PathSpec {
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Unit *unit;
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char *path;
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sd_event_source *event_source;
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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, sd_event_io_handler_t handler);
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void path_spec_unwatch(PathSpec *s);
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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_FAILURE_START_LIMIT_HIT,
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PATH_FAILURE_UNIT_START_LIMIT_HIT,
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PATH_FAILURE_TRIGGER_LIMIT_HIT,
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_PATH_RESULT_MAX,
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_PATH_RESULT_INVALID = -EINVAL,
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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 make_directory;
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mode_t directory_mode;
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PathResult result;
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RateLimit trigger_limit;
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sd_event_source *trigger_notify_event_source;
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};
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struct ActivationDetailsPath {
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ActivationDetails meta;
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char *trigger_path_filename;
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};
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void path_free_specs(Path *p);
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extern const UnitVTable path_vtable;
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extern const ActivationDetailsVTable activation_details_path_vtable;
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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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DEFINE_CAST(PATH, Path);
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DEFINE_ACTIVATION_DETAILS_CAST(ACTIVATION_DETAILS_PATH, ActivationDetailsPath, PATH);
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