typedef struct Unit Unit;
typedef struct UnitVTable UnitVTable;
-typedef enum UnitActiveState UnitActiveState;
typedef struct UnitRef UnitRef;
typedef struct UnitStatusMessageFormats UnitStatusMessageFormats;
-#include "sd-event.h"
-#include "set.h"
-#include "util.h"
#include "list.h"
-#include "socket-util.h"
-#include "execute.h"
-#include "cgroup.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,
+ _KILL_OPERATION_MAX,
+ _KILL_OPERATION_INVALID = -1
} KillOperation;
static inline bool UNIT_IS_ACTIVE_OR_RELOADING(UnitActiveState t) {
return t == UNIT_INACTIVE || t == UNIT_FAILED;
}
-#include "manager.h"
#include "job.h"
struct UnitRef {
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;
/* JOB_NOP jobs are special and can be installed without disturbing the real job. */
Job *nop_job;
+ /* The slot used for watching NameOwnerChanged signals */
+ sd_bus_slot *match_bus_slot;
+
/* Job timeout and action to take */
usec_t job_timeout;
FailureAction job_timeout_action;
/* CGroup realize members queue */
LIST_FIELDS(Unit, cgroup_queue);
+ /* Units with the same CGroup netclass */
+ LIST_FIELDS(Unit, cgroup_netclass);
+
/* 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 */
/* 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 */
+ /* Make sure we never enter endless loops with the check unneeded logic, or the BindsTo= logic */
+ RateLimit auto_stop_ratelimit;
+
+ /* 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;
+ CGroupMask cgroup_realized_mask;
+ CGroupMask cgroup_subtree_mask;
+ CGroupMask cgroup_members_mask;
+ int cgroup_inotify_wd;
+
+ uint32_t cgroup_netclass_id;
/* How to start OnFailure units */
JobMode on_failure_job_mode;
bool cgroup_realized:1;
bool cgroup_members_mask_valid:1;
bool cgroup_subtree_mask_valid:1;
+
+ /* Did we already invoke unit_coldplug() for this unit? */
+ bool coldplugged:1;
};
struct UnitStatusMessageFormats {
UNIT_PERSISTENT = 2,
} UnitSetPropertiesMode;
-#include "service.h"
#include "socket.h"
#include "busname.h"
#include "target.h"
#include "snapshot.h"
#include "device.h"
-#include "mount.h"
#include "automount.h"
#include "swap.h"
#include "timer.h"
-#include "path.h"
#include "slice.h"
+#include "path.h"
#include "scope.h"
struct UnitVTable {
* that */
size_t exec_runtime_offset;
- /* The name of the configuration file section with the private settings of this unit*/
+ /* 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
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);
+ void (*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 */
* 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);
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);
+ void (*notify_message)(Unit *u, pid_t pid, char **tags, FDSet *fds);
/* Called whenever a name this Unit registered for comes or
* goes away. */
* 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);
+ void (*enumerate)(Manager *m);
/* Type specific cleanups. */
void (*shutdown)(Manager *m);
- /* The interface name */
- const char *bus_interface;
+ /* If this function is set and return false all jobs for units
+ * of this type will immediately fail. */
+ bool (*supported)(void);
/* The bus vtable */
const sd_bus_vtable *bus_vtable;
/* For casting the various unit types into a unit */
#define UNIT(u) (&(u)->meta)
+#define UNIT_HAS_EXEC_CONTEXT(u) (UNIT_VTABLE(u)->exec_context_offset > 0)
+#define UNIT_HAS_CGROUP_CONTEXT(u) (UNIT_VTABLE(u)->cgroup_context_offset > 0)
+#define UNIT_HAS_KILL_CONTEXT(u) (UNIT_VTABLE(u)->kill_context_offset > 0)
+
#define UNIT_TRIGGER(u) ((Unit*) set_first((u)->dependencies[UNIT_TRIGGERS]))
DEFINE_CAST(SERVICE, Service);
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_load_fragment_and_dropin_optional(Unit *u);
int unit_load(Unit *unit);
-int unit_add_default_slice(Unit *u, CGroupContext *c);
+int unit_set_slice(Unit *u, Unit *slice);
+int unit_set_default_slice(Unit *u);
const char *unit_description(Unit *u) _pure_;
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_install_bus_match(Unit *u, sd_bus *bus, const char *name);
int unit_watch_bus_name(Unit *u, const char *name);
void unit_unwatch_bus_name(Unit *u, const char *name);
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_serialize_item(Unit *u, FILE *f, const char *key, const char *value);
+int unit_serialize_item_escaped(Unit *u, FILE *f, const char *key, const char *value);
+int unit_serialize_item_fd(Unit *u, FILE *f, FDSet *fds, const char *key, int fd);
+void unit_serialize_item_format(Unit *u, FILE *f, const char *key, const char *value, ...) _printf_(4,5);
+
int unit_add_node_link(Unit *u, const char *what, bool wants);
int unit_coldplug(Unit *u);
void unit_status_printf(Unit *u, const char *status, const char *unit_status_msg_format) _printf_(3, 0);
+void unit_status_emit_starting_stopping_reloading(Unit *u, JobType t);
bool unit_need_daemon_reload(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);
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_;
+bool unit_type_supported(UnitType t);
-/* Macros which append UNIT= or USER_UNIT= to the message */
+static inline bool unit_supported(Unit *u) {
+ return unit_type_supported(u->type);
+}
-#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__)
+void unit_warn_if_dir_nonempty(Unit *u, const char* where);
+int unit_fail_if_symlink(Unit *u, const char* where);
-#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__)
+/* Macros which append UNIT= or USER_UNIT= to the message */
-#define log_unit_struct(unit, level, ...) log_struct(level, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__)
+#define log_unit_full(unit, level, error, ...) \
+ ({ \
+ Unit *_u = (unit); \
+ _u ? log_object_internal(level, error, __FILE__, __LINE__, __func__, _u->manager->unit_log_field, _u->id, ##__VA_ARGS__) : \
+ log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
+ })
+
+#define log_unit_debug(unit, ...) log_unit_full(unit, LOG_DEBUG, 0, ##__VA_ARGS__)
+#define log_unit_info(unit, ...) log_unit_full(unit, LOG_INFO, 0, ##__VA_ARGS__)
+#define log_unit_notice(unit, ...) log_unit_full(unit, LOG_NOTICE, 0, ##__VA_ARGS__)
+#define log_unit_warning(unit, ...) log_unit_full(unit, LOG_WARNING, 0, ##__VA_ARGS__)
+#define log_unit_error(unit, ...) log_unit_full(unit, LOG_ERR, 0, ##__VA_ARGS__)
+
+#define log_unit_debug_errno(unit, error, ...) log_unit_full(unit, LOG_DEBUG, error, ##__VA_ARGS__)
+#define log_unit_info_errno(unit, error, ...) log_unit_full(unit, LOG_INFO, error, ##__VA_ARGS__)
+#define log_unit_notice_errno(unit, error, ...) log_unit_full(unit, LOG_NOTICE, error, ##__VA_ARGS__)
+#define log_unit_warning_errno(unit, error, ...) log_unit_full(unit, LOG_WARNING, error, ##__VA_ARGS__)
+#define log_unit_error_errno(unit, error, ...) log_unit_full(unit, LOG_ERR, error, ##__VA_ARGS__)
+
+#define LOG_UNIT_MESSAGE(unit, fmt, ...) "MESSAGE=%s: " fmt, (unit)->id, ##__VA_ARGS__
+#define LOG_UNIT_ID(unit) (unit)->manager->unit_log_format_string, (unit)->id
projects / thirdparty / systemd.git / blobdiff