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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <errno.h>
#include "unit-def.h"
/* Flags that identify the various "atomic" behaviours a specific dependency type implies. Each dependency is
* a combination of one or more of these flags that define what they actually entail. */
typedef enum UnitDependencyAtom {
/* This unit pulls in the other unit as JOB_START job into the transaction, and if that doesn't work
* the transaction fails. */
UNIT_ATOM_PULL_IN_START = UINT64_C(1) << 0,
/* Similar, but if it doesn't work, ignore. */
UNIT_ATOM_PULL_IN_START_IGNORED = UINT64_C(1) << 1,
/* Pull in a JOB_VERIFY job into the transaction, i.e. pull in JOB_VERIFY rather than
* JOB_START. i.e. check the unit is started but don't pull it in. */
UNIT_ATOM_PULL_IN_VERIFY = UINT64_C(1) << 2,
/* Pull in a JOB_STOP job for the other job into transactions, and fail if that doesn't work. */
UNIT_ATOM_PULL_IN_STOP = UINT64_C(1) << 3,
/* Same, but don't fail, ignore it. */
UNIT_ATOM_PULL_IN_STOP_IGNORED = UINT64_C(1) << 4,
/* If our enters inactive state, add the other unit to the StopWhenUneeded= queue */
UNIT_ATOM_ADD_STOP_WHEN_UNNEEDED_QUEUE = UINT64_C(1) << 5,
/* Pin the other unit i.e. ensure StopWhenUneeded= won't trigger for the other unit as long as we are
* not in inactive state */
UNIT_ATOM_PINS_STOP_WHEN_UNNEEDED = UINT64_C(1) << 6,
/* Stop our unit if the other unit happens to inactive */
UNIT_ATOM_CANNOT_BE_ACTIVE_WITHOUT = UINT64_C(1) << 7,
/* If our unit enters inactive state, add the other unit to the BoundBy= queue */
UNIT_ATOM_ADD_CANNOT_BE_ACTIVE_WITHOUT_QUEUE = UINT64_C(1) << 8,
/* Start this unit whenever we find it inactive and the other unit active */
UNIT_ATOM_START_STEADILY = UINT64_C(1) << 9,
/* Whenever our unit becomes active, add other unit to start_when_upheld_queue */
UNIT_ATOM_ADD_START_WHEN_UPHELD_QUEUE = UINT64_C(1) << 10,
/* If our unit unexpectedly becomes active, retroactively start the other unit too, in "replace" job
* mode */
UNIT_ATOM_RETROACTIVE_START_REPLACE = UINT64_C(1) << 11,
/* Similar, but in "fail" job mode */
UNIT_ATOM_RETROACTIVE_START_FAIL = UINT64_C(1) << 12,
/* If our unit unexpectedly becomes active, retroactively stop the other unit too */
UNIT_ATOM_RETROACTIVE_STOP_ON_START = UINT64_C(1) << 13,
/* If our unit unexpectedly becomes inactive, retroactively stop the other unit too */
UNIT_ATOM_RETROACTIVE_STOP_ON_STOP = UINT64_C(1) << 14,
/* If a start job for this unit fails, propagate the failure to start job of other unit too */
UNIT_ATOM_PROPAGATE_START_FAILURE = UINT64_C(1) << 15,
/* If a stop job for this unit fails, propagate the failure to any stop job of the other unit too */
UNIT_ATOM_PROPAGATE_STOP_FAILURE = UINT64_C(1) << 16,
/* If our start job succeeded but the unit is inactive then (think: oneshot units), propagate this as
* failure to the other unit. */
UNIT_ATOM_PROPAGATE_INACTIVE_START_AS_FAILURE = UINT64_C(1) << 17,
/* When putting together a transaction, propagate JOB_STOP from our unit to the other. */
UNIT_ATOM_PROPAGATE_STOP = UINT64_C(1) << 18,
/* Like UNIT_ATOM_PROPAGATE_STOP, but enqueues a restart job if there's already a start job (avoids
* job type conflict). */
UNIT_ATOM_PROPAGATE_STOP_GRACEFUL = UINT64_C(1) << 19,
/* When putting together a transaction, propagate JOB_RESTART from our unit to the other. */
UNIT_ATOM_PROPAGATE_RESTART = UINT64_C(1) << 20,
/* Add the other unit to the default target dependency queue */
UNIT_ATOM_ADD_DEFAULT_TARGET_DEPENDENCY_QUEUE = UINT64_C(1) << 21,
/* Recheck default target deps on other units (which are target units) */
UNIT_ATOM_DEFAULT_TARGET_DEPENDENCIES = UINT64_C(1) << 22,
/* The remaining atoms map 1:1 to the equally named high-level deps */
UNIT_ATOM_ON_FAILURE = UINT64_C(1) << 23,
UNIT_ATOM_ON_SUCCESS = UINT64_C(1) << 24,
UNIT_ATOM_ON_FAILURE_OF = UINT64_C(1) << 25,
UNIT_ATOM_ON_SUCCESS_OF = UINT64_C(1) << 26,
UNIT_ATOM_BEFORE = UINT64_C(1) << 27,
UNIT_ATOM_AFTER = UINT64_C(1) << 28,
UNIT_ATOM_TRIGGERS = UINT64_C(1) << 29,
UNIT_ATOM_TRIGGERED_BY = UINT64_C(1) << 30,
UNIT_ATOM_PROPAGATES_RELOAD_TO = UINT64_C(1) << 31,
UNIT_ATOM_JOINS_NAMESPACE_OF = UINT64_C(1) << 32,
UNIT_ATOM_REFERENCES = UINT64_C(1) << 33,
UNIT_ATOM_REFERENCED_BY = UINT64_C(1) << 34,
UNIT_ATOM_IN_SLICE = UINT64_C(1) << 35,
UNIT_ATOM_SLICE_OF = UINT64_C(1) << 36,
_UNIT_DEPENDENCY_ATOM_MAX = (UINT64_C(1) << 37) - 1,
_UNIT_DEPENDENCY_ATOM_INVALID = -EINVAL,
} UnitDependencyAtom;
UnitDependencyAtom unit_dependency_to_atom(UnitDependency d);
UnitDependency unit_dependency_from_unique_atom(UnitDependencyAtom atom);
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