-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
#ifndef foounithfoo
#define foounithfoo
#include <stdbool.h>
#include <stdlib.h>
-typedef union Unit Unit;
-typedef struct Meta Meta;
+typedef struct Unit Unit;
typedef struct UnitVTable UnitVTable;
typedef enum UnitType UnitType;
typedef enum UnitLoadState UnitLoadState;
typedef enum UnitActiveState UnitActiveState;
typedef enum UnitDependency UnitDependency;
+typedef struct UnitRef UnitRef;
#include "set.h"
#include "util.h"
#include "list.h"
#include "socket-util.h"
#include "execute.h"
-
-#define UNIT_NAME_MAX 256
-#define DEFAULT_TIMEOUT_USEC (60*USEC_PER_SEC)
-#define DEFAULT_RESTART_USEC (100*USEC_PER_MSEC)
+#include "condition.h"
+#include "install.h"
enum UnitType {
UNIT_SERVICE = 0,
enum UnitLoadState {
UNIT_STUB,
UNIT_LOADED,
- UNIT_FAILED,
+ UNIT_ERROR,
UNIT_MERGED,
+ UNIT_MASKED,
_UNIT_LOAD_STATE_MAX,
_UNIT_LOAD_STATE_INVALID = -1
};
UNIT_ACTIVE,
UNIT_RELOADING,
UNIT_INACTIVE,
- UNIT_MAINTENANCE,
+ UNIT_FAILED,
UNIT_ACTIVATING,
UNIT_DEACTIVATING,
_UNIT_ACTIVE_STATE_MAX,
}
static inline bool UNIT_IS_INACTIVE_OR_DEACTIVATING(UnitActiveState t) {
- return t == UNIT_INACTIVE || t == UNIT_MAINTENANCE || t == UNIT_DEACTIVATING;
+ return t == UNIT_INACTIVE || t == UNIT_FAILED || t == UNIT_DEACTIVATING;
}
-static inline bool UNIT_IS_INACTIVE_OR_MAINTENANCE(UnitActiveState t) {
- return t == UNIT_INACTIVE || t == UNIT_MAINTENANCE;
+static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) {
+ return t == UNIT_INACTIVE || t == UNIT_FAILED;
}
enum UnitDependency {
UNIT_REQUISITE,
UNIT_REQUISITE_OVERRIDABLE,
UNIT_WANTS,
+ UNIT_BIND_TO,
/* Inverse of the above */
UNIT_REQUIRED_BY, /* inverse of 'requires' and 'requisite' is 'required_by' */
- UNIT_REQUIRED_BY_OVERRIDABLE, /* inverse of 'soft_requires' and 'soft_requisite' is 'soft_required_by' */
+ UNIT_REQUIRED_BY_OVERRIDABLE, /* inverse of 'requires_overridable' and 'requisite_overridable' is 'soft_required_by' */
UNIT_WANTED_BY, /* inverse of 'wants' */
+ UNIT_BOUND_BY, /* inverse of 'bind_to' */
/* Negative dependencies */
UNIT_CONFLICTS, /* inverse of 'conflicts' is 'conflicted_by' */
/* On Failure */
UNIT_ON_FAILURE,
+ /* Triggers (i.e. a socket triggers a service) */
+ UNIT_TRIGGERS,
+ UNIT_TRIGGERED_BY,
+
+ /* Propagate reloads */
+ UNIT_PROPAGATE_RELOAD_TO,
+ UNIT_PROPAGATE_RELOAD_FROM,
+
/* Reference information for GC logic */
UNIT_REFERENCES, /* Inverse of 'references' is 'referenced_by' */
UNIT_REFERENCED_BY,
#include "manager.h"
#include "job.h"
#include "cgroup.h"
+#include "cgroup-attr.h"
-struct Meta {
+struct Unit {
Manager *manager;
UnitType type;
usec_t job_timeout;
+ /* References to this */
+ LIST_HEAD(UnitRef, refs);
+
+ /* Conditions to check */
+ LIST_HEAD(Condition, conditions);
+
+ dual_timestamp condition_timestamp;
+
dual_timestamp inactive_exit_timestamp;
dual_timestamp active_enter_timestamp;
dual_timestamp active_exit_timestamp;
/* Counterparts in the cgroup filesystem */
CGroupBonding *cgroup_bondings;
+ CGroupAttribute *cgroup_attributes;
/* Per type list */
- LIST_FIELDS(Meta, units_per_type);
+ LIST_FIELDS(Unit, units_by_type);
/* Load queue */
- LIST_FIELDS(Meta, load_queue);
+ LIST_FIELDS(Unit, load_queue);
/* D-Bus queue */
- LIST_FIELDS(Meta, dbus_queue);
+ LIST_FIELDS(Unit, dbus_queue);
/* Cleanup queue */
- LIST_FIELDS(Meta, cleanup_queue);
+ LIST_FIELDS(Unit, cleanup_queue);
/* GC queue */
- LIST_FIELDS(Meta, gc_queue);
+ LIST_FIELDS(Unit, gc_queue);
/* Used during GC sweeps */
unsigned gc_marker;
- /* If we go down, pull down everything that depends on us, too */
- bool recursive_stop;
+ /* When deserializing, temporarily store the job type for this
+ * unit here, if there was a job scheduled */
+ 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 */
+ UnitFileState unit_file_state;
/* 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 only_by_dependency;
+ bool refuse_manual_start;
- /* Create default depedencies */
- bool default_dependencies;
+ /* Don't allow the user to stop this unit manually, allow stopping only indirectly via dependency. */
+ bool refuse_manual_stop;
- /* Bring up this unit even if a dependency fails to start */
- bool ignore_dependency_failure;
+ /* Allow isolation requests */
+ bool allow_isolate;
- /* When deserializing, temporarily store the job type for this
- * unit here, if there was a job scheduled */
- int deserialized_job; /* This is actually of type JobType */
+ /* Isolate OnFailure unit */
+ bool on_failure_isolate;
+
+ /* Ignore this unit when isolating */
+ bool ignore_on_isolate;
+
+ /* Ignore this unit when snapshotting */
+ bool ignore_on_snapshot;
+
+ /* Did the last condition check suceed? */
+ bool condition_result;
bool in_load_queue:1;
bool in_dbus_queue:1;
bool in_gc_queue:1;
bool sent_dbus_new_signal:1;
+
+ bool no_gc:1;
+
+ bool in_audit:1;
+};
+
+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);
};
#include "service.h"
#include "swap.h"
#include "path.h"
-union Unit {
- Meta meta;
- Service service;
- Timer timer;
- Socket socket;
- Target target;
- Device device;
- Mount mount;
- Automount automount;
- Snapshot snapshot;
- Swap swap;
- Path path;
-};
-
struct UnitVTable {
const char *suffix;
+ /* How much memory does an object of this unit type need */
+ size_t object_size;
+
+ /* 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
int (*stop)(Unit *u);
int (*reload)(Unit *u);
+ int (*kill)(Unit *u, KillWho w, KillMode m, int signo, DBusError *error);
+
bool (*can_reload)(Unit *u);
/* Write all data that cannot be restored from other sources
/* Returns the substate specific to this unit type as
* string. This is purely information so that we can give the
- * user a more finegrained explanation in which actual state a
+ * user a more fine grained explanation in which actual state a
* unit is in. */
const char* (*sub_state_to_string)(Unit *u);
void (*sigchld_event)(Unit *u, pid_t pid, int code, int status);
void (*timer_event)(Unit *u, uint64_t n_elapsed, Watch *w);
- /* Reset maintenance state if we are in maintainance state */
- void (*reset_maintenance)(Unit *u);
+ /* Check whether unit needs a daemon reload */
+ bool (*need_daemon_reload)(Unit *u);
+
+ /* 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 */
/* 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);
+
/* 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
/* Type specific cleanups. */
void (*shutdown)(Manager *m);
+ /* When sending out PropertiesChanged signal, which properties
+ * shall be invalidated? This is a NUL separated list of
+ * strings, to minimize relocations a little. */
+ const char *bus_invalidating_properties;
+
+ /* The interface name */
+ const char *bus_interface;
+
/* Can units of this type have multiple names? */
bool no_alias:1;
- /* If true units of this types can never have "Requires"
- * dependencies, because state changes can only be observed,
- * not triggered */
- bool no_requires:1;
-
/* Instances make no sense for this type */
bool no_instances:1;
- /* Exclude this type from snapshots */
- bool no_snapshots:1;
-
/* Exclude from automatic gc */
bool no_gc:1;
- /* Exclude from isolation requests */
- bool no_isolate:1;
-
/* Show status updates on the console */
bool show_status:1;
};
extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX];
-#define UNIT_VTABLE(u) unit_vtable[(u)->meta.type]
+#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->meta.type != UNIT_##UPPERCASE)) \
+ if (_unlikely_(!u || u->type != UNIT_##UPPERCASE)) \
return NULL; \
\
return (MixedCase*) u; \
}
/* For casting the various unit types into a unit */
-#define UNIT(u) ((Unit*) (&(u)->meta))
+#define UNIT(u) (&(u)->meta)
DEFINE_CAST(SOCKET, Socket);
DEFINE_CAST(TIMER, Timer);
DEFINE_CAST(SWAP, Swap);
DEFINE_CAST(PATH, Path);
-Unit *unit_new(Manager *m);
+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_cgroup(Unit *u, CGroupBonding *b);
int unit_add_cgroup_from_text(Unit *u, const char *name);
-int unit_add_default_cgroup(Unit *u);
+int unit_add_default_cgroups(Unit *u);
CGroupBonding* unit_get_default_cgroup(Unit *u);
+int unit_add_cgroup_attribute(Unit *u, const char *controller, const char *name, const char *value, CGroupAttributeMapCallback map_callback);
int unit_choose_id(Unit *u, const char *name);
int unit_set_description(Unit *u, const char *description);
int unit_load_fragment_and_dropin(Unit *u);
int unit_load_fragment_and_dropin_optional(Unit *u);
-int unit_load_nop(Unit *u);
int unit_load(Unit *unit);
const char *unit_description(Unit *u);
bool unit_can_reload(Unit *u);
bool unit_can_start(Unit *u);
+bool unit_can_isolate(Unit *u);
int unit_start(Unit *u);
int unit_stop(Unit *u);
int unit_reload(Unit *u);
-void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns);
+int unit_kill(Unit *u, KillWho w, KillMode m, int signo, DBusError *error);
+
+void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_success);
int unit_watch_fd(Unit *u, int fd, uint32_t events, Watch *w);
void unit_unwatch_fd(Unit *u, Watch *w);
int unit_coldplug(Unit *u);
-void unit_status_printf(Unit *u, const char *format, ...);
+void unit_status_printf(Unit *u, const char *status, const char *format, ...);
bool unit_need_daemon_reload(Unit *u);
-void unit_reset_maintenance(Unit *u);
+void unit_reset_failed(Unit *u);
Unit *unit_following(Unit *u);
-const char *unit_type_to_string(UnitType i);
-UnitType unit_type_from_string(const char *s);
+bool unit_pending_inactive(Unit *u);
+bool unit_pending_active(Unit *u);
+
+int unit_add_default_target_dependency(Unit *u, Unit *target);
+
+int unit_following_set(Unit *u, Set **s);
+
+UnitType unit_name_to_type(const char *n);
+bool unit_name_is_valid(const char *n, bool template_ok);
+
+void unit_trigger_on_failure(Unit *u);
+
+bool unit_condition_test(Unit *u);
+
+UnitFileState unit_get_unit_file_state(Unit *u);
+
+Unit* unit_ref_set(UnitRef *ref, Unit *u);
+void unit_ref_unset(UnitRef *ref);
+
+#define UNIT_DEREF(ref) ((ref).unit)
const char *unit_load_state_to_string(UnitLoadState i);
UnitLoadState unit_load_state_from_string(const char *s);
const char *unit_dependency_to_string(UnitDependency i);
UnitDependency unit_dependency_from_string(const char *s);
-const char *kill_mode_to_string(KillMode k);
-KillMode kill_mode_from_string(const char *s);
-
#endif
~ianmdlvl / elogind.git / blobdiff