6e392c9c45
Because the order of coldplugging is not defined, we can reference a not-yet-coldplugged unit and read its state while it has not yet been set to a meaningful value. This way, already active units may get started again. We fix this by deferring such actions until all units have been at least somehow coldplugged. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=88401
626 lines
22 KiB
C
626 lines
22 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
||
|
||
#pragma once
|
||
|
||
/***
|
||
This file is part of systemd.
|
||
|
||
Copyright 2010 Lennart Poettering
|
||
|
||
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/>.
|
||
***/
|
||
|
||
#include <stdbool.h>
|
||
#include <stdlib.h>
|
||
#include <unistd.h>
|
||
|
||
typedef struct Unit Unit;
|
||
typedef struct UnitVTable UnitVTable;
|
||
typedef enum UnitActiveState UnitActiveState;
|
||
typedef struct UnitRef UnitRef;
|
||
typedef struct UnitStatusMessageFormats UnitStatusMessageFormats;
|
||
|
||
#include "list.h"
|
||
#include "condition.h"
|
||
#include "install.h"
|
||
#include "unit-name.h"
|
||
#include "failure-action.h"
|
||
|
||
enum UnitActiveState {
|
||
UNIT_ACTIVE,
|
||
UNIT_RELOADING,
|
||
UNIT_INACTIVE,
|
||
UNIT_FAILED,
|
||
UNIT_ACTIVATING,
|
||
UNIT_DEACTIVATING,
|
||
_UNIT_ACTIVE_STATE_MAX,
|
||
_UNIT_ACTIVE_STATE_INVALID = -1
|
||
};
|
||
|
||
typedef enum KillOperation {
|
||
KILL_TERMINATE,
|
||
KILL_KILL,
|
||
KILL_ABORT,
|
||
} KillOperation;
|
||
|
||
static inline bool UNIT_IS_ACTIVE_OR_RELOADING(UnitActiveState t) {
|
||
return t == UNIT_ACTIVE || t == UNIT_RELOADING;
|
||
}
|
||
|
||
static inline bool UNIT_IS_ACTIVE_OR_ACTIVATING(UnitActiveState t) {
|
||
return t == UNIT_ACTIVE || t == UNIT_ACTIVATING || t == UNIT_RELOADING;
|
||
}
|
||
|
||
static inline bool UNIT_IS_INACTIVE_OR_DEACTIVATING(UnitActiveState t) {
|
||
return t == UNIT_INACTIVE || t == UNIT_FAILED || t == UNIT_DEACTIVATING;
|
||
}
|
||
|
||
static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) {
|
||
return t == UNIT_INACTIVE || t == UNIT_FAILED;
|
||
}
|
||
|
||
#include "job.h"
|
||
|
||
struct UnitRef {
|
||
/* Keeps tracks of references to a unit. This is useful so
|
||
* that we can merge two units if necessary and correct all
|
||
* references to them */
|
||
|
||
Unit* unit;
|
||
LIST_FIELDS(UnitRef, refs);
|
||
};
|
||
|
||
struct Unit {
|
||
Manager *manager;
|
||
|
||
UnitType type;
|
||
UnitLoadState load_state;
|
||
Unit *merged_into;
|
||
|
||
char *id; /* One name is special because we use it for identification. Points to an entry in the names set */
|
||
char *instance;
|
||
|
||
Set *names;
|
||
Set *dependencies[_UNIT_DEPENDENCY_MAX];
|
||
|
||
char **requires_mounts_for;
|
||
|
||
char *description;
|
||
char **documentation;
|
||
|
||
char *fragment_path; /* if loaded from a config file this is the primary path to it */
|
||
char *source_path; /* if converted, the source file */
|
||
char **dropin_paths;
|
||
usec_t fragment_mtime;
|
||
usec_t source_mtime;
|
||
usec_t dropin_mtime;
|
||
|
||
/* If there is something to do with this unit, then this is the installed job for it */
|
||
Job *job;
|
||
|
||
/* JOB_NOP jobs are special and can be installed without disturbing the real job. */
|
||
Job *nop_job;
|
||
|
||
/* Job timeout and action to take */
|
||
usec_t job_timeout;
|
||
FailureAction job_timeout_action;
|
||
char *job_timeout_reboot_arg;
|
||
|
||
/* References to this */
|
||
LIST_HEAD(UnitRef, refs);
|
||
|
||
/* Conditions to check */
|
||
LIST_HEAD(Condition, conditions);
|
||
LIST_HEAD(Condition, asserts);
|
||
|
||
dual_timestamp condition_timestamp;
|
||
dual_timestamp assert_timestamp;
|
||
|
||
dual_timestamp inactive_exit_timestamp;
|
||
dual_timestamp active_enter_timestamp;
|
||
dual_timestamp active_exit_timestamp;
|
||
dual_timestamp inactive_enter_timestamp;
|
||
|
||
UnitRef slice;
|
||
|
||
/* Per type list */
|
||
LIST_FIELDS(Unit, units_by_type);
|
||
|
||
/* All units which have requires_mounts_for set */
|
||
LIST_FIELDS(Unit, has_requires_mounts_for);
|
||
|
||
/* Load queue */
|
||
LIST_FIELDS(Unit, load_queue);
|
||
|
||
/* D-Bus queue */
|
||
LIST_FIELDS(Unit, dbus_queue);
|
||
|
||
/* Cleanup queue */
|
||
LIST_FIELDS(Unit, cleanup_queue);
|
||
|
||
/* GC queue */
|
||
LIST_FIELDS(Unit, gc_queue);
|
||
|
||
/* CGroup realize members queue */
|
||
LIST_FIELDS(Unit, cgroup_queue);
|
||
|
||
/* PIDs we keep an eye on. Note that a unit might have many
|
||
* more, but these are the ones we care enough about to
|
||
* process SIGCHLD for */
|
||
Set *pids;
|
||
|
||
/* Used during GC sweeps */
|
||
unsigned gc_marker;
|
||
|
||
/* When deserializing, temporarily store the job type for this
|
||
* unit here, if there was a job scheduled.
|
||
* Only for deserializing from a legacy version. New style uses full
|
||
* serialized jobs. */
|
||
int deserialized_job; /* This is actually of type JobType */
|
||
|
||
/* Error code when we didn't manage to load the unit (negative) */
|
||
int load_error;
|
||
|
||
/* Cached unit file state and preset */
|
||
UnitFileState unit_file_state;
|
||
int unit_file_preset;
|
||
|
||
/* Where the cpuacct.usage cgroup counter was at the time the unit was started */
|
||
nsec_t cpuacct_usage_base;
|
||
|
||
/* Counterparts in the cgroup filesystem */
|
||
char *cgroup_path;
|
||
CGroupControllerMask cgroup_realized_mask;
|
||
CGroupControllerMask cgroup_subtree_mask;
|
||
CGroupControllerMask cgroup_members_mask;
|
||
|
||
/* How to start OnFailure units */
|
||
JobMode on_failure_job_mode;
|
||
|
||
/* Garbage collect us we nobody wants or requires us anymore */
|
||
bool stop_when_unneeded;
|
||
|
||
/* Create default dependencies */
|
||
bool default_dependencies;
|
||
|
||
/* Refuse manual starting, allow starting only indirectly via dependency. */
|
||
bool refuse_manual_start;
|
||
|
||
/* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */
|
||
bool refuse_manual_stop;
|
||
|
||
/* Allow isolation requests */
|
||
bool allow_isolate;
|
||
|
||
/* Ignore this unit when isolating */
|
||
bool ignore_on_isolate;
|
||
|
||
/* Ignore this unit when snapshotting */
|
||
bool ignore_on_snapshot;
|
||
|
||
/* Did the last condition check succeed? */
|
||
bool condition_result;
|
||
bool assert_result;
|
||
|
||
/* Is this a transient unit? */
|
||
bool transient;
|
||
|
||
bool in_load_queue:1;
|
||
bool in_dbus_queue:1;
|
||
bool in_cleanup_queue:1;
|
||
bool in_gc_queue:1;
|
||
bool in_cgroup_queue:1;
|
||
|
||
bool sent_dbus_new_signal:1;
|
||
|
||
bool no_gc:1;
|
||
|
||
bool in_audit:1;
|
||
|
||
bool cgroup_realized:1;
|
||
bool cgroup_members_mask_valid:1;
|
||
bool cgroup_subtree_mask_valid:1;
|
||
};
|
||
|
||
struct UnitStatusMessageFormats {
|
||
const char *starting_stopping[2];
|
||
const char *finished_start_job[_JOB_RESULT_MAX];
|
||
const char *finished_stop_job[_JOB_RESULT_MAX];
|
||
};
|
||
|
||
typedef enum UnitSetPropertiesMode {
|
||
UNIT_CHECK = 0,
|
||
UNIT_RUNTIME = 1,
|
||
UNIT_PERSISTENT = 2,
|
||
} UnitSetPropertiesMode;
|
||
|
||
#include "socket.h"
|
||
#include "busname.h"
|
||
#include "target.h"
|
||
#include "snapshot.h"
|
||
#include "device.h"
|
||
#include "automount.h"
|
||
#include "swap.h"
|
||
#include "timer.h"
|
||
#include "slice.h"
|
||
#include "path.h"
|
||
#include "scope.h"
|
||
|
||
struct UnitVTable {
|
||
/* How much memory does an object of this unit type need */
|
||
size_t object_size;
|
||
|
||
/* If greater than 0, the offset into the object where
|
||
* ExecContext is found, if the unit type has that */
|
||
size_t exec_context_offset;
|
||
|
||
/* If greater than 0, the offset into the object where
|
||
* CGroupContext is found, if the unit type has that */
|
||
size_t cgroup_context_offset;
|
||
|
||
/* If greater than 0, the offset into the object where
|
||
* KillContext is found, if the unit type has that */
|
||
size_t kill_context_offset;
|
||
|
||
/* If greater than 0, the offset into the object where the
|
||
* pointer to ExecRuntime is found, if the unit type has
|
||
* that */
|
||
size_t exec_runtime_offset;
|
||
|
||
/* The name of the configuration file section with the private settings of this unit */
|
||
const char *private_section;
|
||
|
||
/* Config file sections this unit type understands, separated
|
||
* by NUL chars */
|
||
const char *sections;
|
||
|
||
/* This should reset all type-specific variables. This should
|
||
* not allocate memory, and is called with zero-initialized
|
||
* data. It should hence only initialize variables that need
|
||
* to be set != 0. */
|
||
void (*init)(Unit *u);
|
||
|
||
/* This should free all type-specific variables. It should be
|
||
* idempotent. */
|
||
void (*done)(Unit *u);
|
||
|
||
/* Actually load data from disk. This may fail, and should set
|
||
* load_state to UNIT_LOADED, UNIT_MERGED or leave it at
|
||
* UNIT_STUB if no configuration could be found. */
|
||
int (*load)(Unit *u);
|
||
|
||
/* If a lot of units got created via enumerate(), this is
|
||
* where to actually set the state and call unit_notify().
|
||
*
|
||
* This must not reference other units (maybe implicitly through spawning
|
||
* jobs), because it is possible that they are not yet coldplugged.
|
||
* Such actions must be deferred until the end of coldplug bу adding
|
||
* a "Unit* -> int(*)(Unit*)" entry into the hashmap.
|
||
*/
|
||
int (*coldplug)(Unit *u, Hashmap *deferred_work);
|
||
|
||
void (*dump)(Unit *u, FILE *f, const char *prefix);
|
||
|
||
int (*start)(Unit *u);
|
||
int (*stop)(Unit *u);
|
||
int (*reload)(Unit *u);
|
||
|
||
int (*kill)(Unit *u, KillWho w, int signo, sd_bus_error *error);
|
||
|
||
bool (*can_reload)(Unit *u);
|
||
|
||
/* Write all data that cannot be restored from other sources
|
||
* away using unit_serialize_item() */
|
||
int (*serialize)(Unit *u, FILE *f, FDSet *fds);
|
||
|
||
/* Restore one item from the serialization */
|
||
int (*deserialize_item)(Unit *u, const char *key, const char *data, FDSet *fds);
|
||
|
||
/* Try to match up fds with what we need for this unit */
|
||
int (*distribute_fds)(Unit *u, FDSet *fds);
|
||
|
||
/* Boils down the more complex internal state of this unit to
|
||
* a simpler one that the engine can understand */
|
||
UnitActiveState (*active_state)(Unit *u);
|
||
|
||
/* Returns the substate specific to this unit type as
|
||
* string. This is purely information so that we can give the
|
||
* user a more fine grained explanation in which actual state a
|
||
* unit is in. */
|
||
const char* (*sub_state_to_string)(Unit *u);
|
||
|
||
/* Return true when there is reason to keep this entry around
|
||
* even nothing references it and it isn't active in any
|
||
* way */
|
||
bool (*check_gc)(Unit *u);
|
||
|
||
/* When the unit is not running and no job for it queued we
|
||
* shall release its runtime resources */
|
||
void (*release_resources)(Unit *u);
|
||
|
||
/* Return true when this unit is suitable for snapshotting */
|
||
bool (*check_snapshot)(Unit *u);
|
||
|
||
/* Invoked on every child that died */
|
||
void (*sigchld_event)(Unit *u, pid_t pid, int code, int status);
|
||
|
||
/* Reset failed state if we are in failed state */
|
||
void (*reset_failed)(Unit *u);
|
||
|
||
/* Called whenever any of the cgroups this unit watches for
|
||
* ran empty */
|
||
void (*notify_cgroup_empty)(Unit *u);
|
||
|
||
/* Called whenever a process of this unit sends us a message */
|
||
void (*notify_message)(Unit *u, pid_t pid, char **tags, FDSet *fds);
|
||
|
||
/* Called whenever a name this Unit registered for comes or
|
||
* goes away. */
|
||
void (*bus_name_owner_change)(Unit *u, const char *name, const char *old_owner, const char *new_owner);
|
||
|
||
/* Called for each property that is being set */
|
||
int (*bus_set_property)(Unit *u, const char *name, sd_bus_message *message, UnitSetPropertiesMode mode, sd_bus_error *error);
|
||
|
||
/* Called after at least one property got changed to apply the necessary change */
|
||
int (*bus_commit_properties)(Unit *u);
|
||
|
||
/* Return the unit this unit is following */
|
||
Unit *(*following)(Unit *u);
|
||
|
||
/* Return the set of units that are following each other */
|
||
int (*following_set)(Unit *u, Set **s);
|
||
|
||
/* Invoked each time a unit this unit is triggering changes
|
||
* state or gains/loses a job */
|
||
void (*trigger_notify)(Unit *u, Unit *trigger);
|
||
|
||
/* Called whenever CLOCK_REALTIME made a jump */
|
||
void (*time_change)(Unit *u);
|
||
|
||
int (*get_timeout)(Unit *u, uint64_t *timeout);
|
||
|
||
/* This is called for each unit type and should be used to
|
||
* enumerate existing devices and load them. However,
|
||
* everything that is loaded here should still stay in
|
||
* inactive state. It is the job of the coldplug() call above
|
||
* to put the units into the initial state. */
|
||
int (*enumerate)(Manager *m);
|
||
|
||
/* Type specific cleanups. */
|
||
void (*shutdown)(Manager *m);
|
||
|
||
/* If this function is set and return false all jobs for units
|
||
* of this type will immediately fail. */
|
||
bool (*supported)(Manager *m);
|
||
|
||
/* The interface name */
|
||
const char *bus_interface;
|
||
|
||
/* The bus vtable */
|
||
const sd_bus_vtable *bus_vtable;
|
||
|
||
/* The strings to print in status messages */
|
||
UnitStatusMessageFormats status_message_formats;
|
||
|
||
/* Can units of this type have multiple names? */
|
||
bool no_alias:1;
|
||
|
||
/* Instances make no sense for this type */
|
||
bool no_instances:1;
|
||
|
||
/* Exclude from automatic gc */
|
||
bool no_gc:1;
|
||
|
||
/* True if transient units of this type are OK */
|
||
bool can_transient:1;
|
||
};
|
||
|
||
extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX];
|
||
|
||
#define UNIT_VTABLE(u) unit_vtable[(u)->type]
|
||
|
||
/* For casting a unit into the various unit types */
|
||
#define DEFINE_CAST(UPPERCASE, MixedCase) \
|
||
static inline MixedCase* UPPERCASE(Unit *u) { \
|
||
if (_unlikely_(!u || u->type != UNIT_##UPPERCASE)) \
|
||
return NULL; \
|
||
\
|
||
return (MixedCase*) u; \
|
||
}
|
||
|
||
/* For casting the various unit types into a unit */
|
||
#define UNIT(u) (&(u)->meta)
|
||
|
||
#define UNIT_TRIGGER(u) ((Unit*) set_first((u)->dependencies[UNIT_TRIGGERS]))
|
||
|
||
DEFINE_CAST(SERVICE, Service);
|
||
DEFINE_CAST(SOCKET, Socket);
|
||
DEFINE_CAST(BUSNAME, BusName);
|
||
DEFINE_CAST(TARGET, Target);
|
||
DEFINE_CAST(SNAPSHOT, Snapshot);
|
||
DEFINE_CAST(DEVICE, Device);
|
||
DEFINE_CAST(MOUNT, Mount);
|
||
DEFINE_CAST(AUTOMOUNT, Automount);
|
||
DEFINE_CAST(SWAP, Swap);
|
||
DEFINE_CAST(TIMER, Timer);
|
||
DEFINE_CAST(PATH, Path);
|
||
DEFINE_CAST(SLICE, Slice);
|
||
DEFINE_CAST(SCOPE, Scope);
|
||
|
||
Unit *unit_new(Manager *m, size_t size);
|
||
void unit_free(Unit *u);
|
||
|
||
int unit_add_name(Unit *u, const char *name);
|
||
|
||
int unit_add_dependency(Unit *u, UnitDependency d, Unit *other, bool add_reference);
|
||
int unit_add_two_dependencies(Unit *u, UnitDependency d, UnitDependency e, Unit *other, bool add_reference);
|
||
|
||
int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference);
|
||
int unit_add_two_dependencies_by_name(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference);
|
||
|
||
int unit_add_dependency_by_name_inverse(Unit *u, UnitDependency d, const char *name, const char *filename, bool add_reference);
|
||
int unit_add_two_dependencies_by_name_inverse(Unit *u, UnitDependency d, UnitDependency e, const char *name, const char *path, bool add_reference);
|
||
|
||
int unit_add_exec_dependencies(Unit *u, ExecContext *c);
|
||
|
||
int unit_choose_id(Unit *u, const char *name);
|
||
int unit_set_description(Unit *u, const char *description);
|
||
|
||
bool unit_check_gc(Unit *u);
|
||
|
||
void unit_add_to_load_queue(Unit *u);
|
||
void unit_add_to_dbus_queue(Unit *u);
|
||
void unit_add_to_cleanup_queue(Unit *u);
|
||
void unit_add_to_gc_queue(Unit *u);
|
||
|
||
int unit_merge(Unit *u, Unit *other);
|
||
int unit_merge_by_name(Unit *u, const char *other);
|
||
|
||
Unit *unit_follow_merge(Unit *u) _pure_;
|
||
|
||
int unit_load_fragment_and_dropin(Unit *u);
|
||
int unit_load_fragment_and_dropin_optional(Unit *u);
|
||
int unit_load(Unit *unit);
|
||
|
||
int unit_add_default_slice(Unit *u, CGroupContext *c);
|
||
|
||
const char *unit_description(Unit *u) _pure_;
|
||
|
||
bool unit_has_name(Unit *u, const char *name);
|
||
|
||
UnitActiveState unit_active_state(Unit *u);
|
||
|
||
const char* unit_sub_state_to_string(Unit *u);
|
||
|
||
void unit_dump(Unit *u, FILE *f, const char *prefix);
|
||
|
||
bool unit_can_reload(Unit *u) _pure_;
|
||
bool unit_can_start(Unit *u) _pure_;
|
||
bool unit_can_isolate(Unit *u) _pure_;
|
||
|
||
int unit_start(Unit *u);
|
||
int unit_stop(Unit *u);
|
||
int unit_reload(Unit *u);
|
||
|
||
int unit_kill(Unit *u, KillWho w, int signo, sd_bus_error *error);
|
||
int unit_kill_common(Unit *u, KillWho who, int signo, pid_t main_pid, pid_t control_pid, sd_bus_error *error);
|
||
|
||
void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success);
|
||
|
||
int unit_watch_pid(Unit *u, pid_t pid);
|
||
void unit_unwatch_pid(Unit *u, pid_t pid);
|
||
int unit_watch_all_pids(Unit *u);
|
||
void unit_unwatch_all_pids(Unit *u);
|
||
|
||
void unit_tidy_watch_pids(Unit *u, pid_t except1, pid_t except2);
|
||
|
||
int unit_watch_bus_name(Unit *u, const char *name);
|
||
void unit_unwatch_bus_name(Unit *u, const char *name);
|
||
|
||
bool unit_job_is_applicable(Unit *u, JobType j);
|
||
|
||
int set_unit_path(const char *p);
|
||
|
||
char *unit_dbus_path(Unit *u);
|
||
|
||
int unit_load_related_unit(Unit *u, const char *type, Unit **_found);
|
||
|
||
bool unit_can_serialize(Unit *u) _pure_;
|
||
int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs);
|
||
void unit_serialize_item_format(Unit *u, FILE *f, const char *key, const char *value, ...) _printf_(4,5);
|
||
void unit_serialize_item(Unit *u, FILE *f, const char *key, const char *value);
|
||
int unit_deserialize(Unit *u, FILE *f, FDSet *fds);
|
||
|
||
int unit_add_node_link(Unit *u, const char *what, bool wants);
|
||
|
||
int unit_coldplug(Unit *u, Hashmap *deferred_work);
|
||
|
||
void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) _printf_(3, 0);
|
||
|
||
bool unit_need_daemon_reload(Unit *u);
|
||
|
||
void unit_reset_failed(Unit *u);
|
||
|
||
Unit *unit_following(Unit *u);
|
||
int unit_following_set(Unit *u, Set **s);
|
||
|
||
const char *unit_slice_name(Unit *u);
|
||
|
||
bool unit_stop_pending(Unit *u) _pure_;
|
||
bool unit_inactive_or_pending(Unit *u) _pure_;
|
||
bool unit_active_or_pending(Unit *u);
|
||
|
||
int unit_add_default_target_dependency(Unit *u, Unit *target);
|
||
|
||
char *unit_default_cgroup_path(Unit *u);
|
||
|
||
void unit_start_on_failure(Unit *u);
|
||
void unit_trigger_notify(Unit *u);
|
||
|
||
UnitFileState unit_get_unit_file_state(Unit *u);
|
||
int unit_get_unit_file_preset(Unit *u);
|
||
|
||
Unit* unit_ref_set(UnitRef *ref, Unit *u);
|
||
void unit_ref_unset(UnitRef *ref);
|
||
|
||
#define UNIT_DEREF(ref) ((ref).unit)
|
||
#define UNIT_ISSET(ref) (!!(ref).unit)
|
||
|
||
int unit_patch_contexts(Unit *u);
|
||
|
||
ExecContext *unit_get_exec_context(Unit *u) _pure_;
|
||
KillContext *unit_get_kill_context(Unit *u) _pure_;
|
||
CGroupContext *unit_get_cgroup_context(Unit *u) _pure_;
|
||
|
||
ExecRuntime *unit_get_exec_runtime(Unit *u) _pure_;
|
||
|
||
int unit_setup_exec_runtime(Unit *u);
|
||
|
||
int unit_write_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data);
|
||
int unit_write_drop_in_format(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *format, ...) _printf_(4,5);
|
||
|
||
int unit_write_drop_in_private(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data);
|
||
int unit_write_drop_in_private_format(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *format, ...) _printf_(4,5);
|
||
|
||
int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name);
|
||
|
||
int unit_kill_context(Unit *u, KillContext *c, KillOperation k, pid_t main_pid, pid_t control_pid, bool main_pid_alien);
|
||
|
||
int unit_make_transient(Unit *u);
|
||
|
||
int unit_require_mounts_for(Unit *u, const char *path);
|
||
|
||
const char *unit_active_state_to_string(UnitActiveState i) _const_;
|
||
UnitActiveState unit_active_state_from_string(const char *s) _pure_;
|
||
|
||
/* Macros which append UNIT= or USER_UNIT= to the message */
|
||
|
||
#define log_unit_full_errno(unit, level, error, ...) log_object_internal(level, error, __FILE__, __LINE__, __func__, getpid() == 1 ? "UNIT=" : "USER_UNIT=", unit, __VA_ARGS__)
|
||
#define log_unit_full(unit, level, ...) log_unit_full_errno(unit, level, 0, __VA_ARGS__)
|
||
|
||
#define log_unit_debug(unit, ...) log_unit_full(unit, LOG_DEBUG, __VA_ARGS__)
|
||
#define log_unit_info(unit, ...) log_unit_full(unit, LOG_INFO, __VA_ARGS__)
|
||
#define log_unit_notice(unit, ...) log_unit_full(unit, LOG_NOTICE, __VA_ARGS__)
|
||
#define log_unit_warning(unit, ...) log_unit_full(unit, LOG_WARNING, __VA_ARGS__)
|
||
#define log_unit_error(unit, ...) log_unit_full(unit, LOG_ERR, __VA_ARGS__)
|
||
|
||
#define log_unit_debug_errno(unit, error, ...) log_unit_full_errno(unit, LOG_DEBUG, error, __VA_ARGS__)
|
||
#define log_unit_info_errno(unit, error, ...) log_unit_full_errno(unit, LOG_INFO, error, __VA_ARGS__)
|
||
#define log_unit_notice_errno(unit, error, ...) log_unit_full_errno(unit, LOG_NOTICE, error, __VA_ARGS__)
|
||
#define log_unit_warning_errno(unit, error, ...) log_unit_full_errno(unit, LOG_WARNING, error, __VA_ARGS__)
|
||
#define log_unit_error_errno(unit, error, ...) log_unit_full_errno(unit, LOG_ERR, error, __VA_ARGS__)
|
||
|
||
#define log_unit_struct(unit, level, ...) log_struct(level, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__)
|
||
#define log_unit_struct_errno(unit, level, error, ...) log_struct_errno(level, error, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__)
|