diff options
Diffstat (limited to 'name.h')
| -rw-r--r-- | name.h | 284 |
1 files changed, 91 insertions, 193 deletions
@@ -8,14 +8,11 @@ typedef union Name Name; typedef struct Meta Meta; -typedef struct Service Service; -typedef struct Timer Timer; -typedef struct Socket Socket; -typedef struct Milestone Milestone; -typedef struct Device Device; -typedef struct Mount Mount; -typedef struct Automount Automount; -typedef struct Snapshot Snapshot; +typedef struct NameVTable NameVTable; +typedef enum NameType NameType; +typedef enum NameLoadState NameLoadState; +typedef enum NameActiveState NameActiveState; +typedef enum NameDependency NameDependency; #include "job.h" #include "manager.h" @@ -23,8 +20,11 @@ typedef struct Snapshot Snapshot; #include "util.h" #include "list.h" #include "socket-util.h" +#include "execute.h" -typedef enum NameType { +#define NAME_MAX 32 + +enum NameType { NAME_SERVICE = 0, NAME_TIMER, NAME_SOCKET, @@ -35,38 +35,60 @@ typedef enum NameType { NAME_SNAPSHOT, _NAME_TYPE_MAX, _NAME_TYPE_INVALID = -1, -} NameType; +}; -typedef enum NameState { +enum NameLoadState { NAME_STUB, NAME_LOADED, NAME_FAILED, - _NAME_STATE_MAX -} NameState; + _NAME_LOAD_STATE_MAX +}; + +enum NameActiveState { + NAME_ACTIVE, + NAME_ACTIVE_RELOADING, + NAME_INACTIVE, + NAME_ACTIVATING, + NAME_DEACTIVATING, + _NAME_ACTIVE_STATE_MAX +}; + +static inline bool NAME_IS_ACTIVE_OR_RELOADING(NameActiveState t) { + return t == NAME_ACTIVE || t == NAME_ACTIVE_RELOADING; +} + +static inline bool NAME_IS_ACTIVE_OR_ACTIVATING(NameActiveState t) { + return t == NAME_ACTIVE || t == NAME_ACTIVATING || t == NAME_ACTIVE_RELOADING; +} + +static inline bool NAME_IS_INACTIVE_OR_DEACTIVATING(NameActiveState t) { + return t == NAME_INACTIVE || t == NAME_DEACTIVATING; +} -typedef enum NameDependency { +enum NameDependency { /* Positive dependencies */ NAME_REQUIRES, NAME_SOFT_REQUIRES, NAME_WANTS, NAME_REQUISITE, NAME_SOFT_REQUISITE, - NAME_REQUIRED_BY, /* inverse of 'requires' and 'requisite' is 'required_by' */ - NAME_WANTED_BY, /* inverse of 'wants', 'soft_requires' and 'soft_requisite' is 'wanted_by' */ + NAME_REQUIRED_BY, /* inverse of 'requires' and 'requisite' is 'required_by' */ + NAME_SOFT_REQUIRED_BY, /* inverse of 'soft_requires' and 'soft_requisite' is 'soft_required_by' */ + NAME_WANTED_BY, /* inverse of 'wants' */ /* Negative dependencies */ - NAME_CONFLICTS, /* inverse of 'conflicts' is 'conflicts' */ + NAME_CONFLICTS, /* inverse of 'conflicts' is 'conflicts' */ /* Order */ - NAME_BEFORE, /* inverse of before is after and vice versa */ + NAME_BEFORE, /* inverse of before is after and vice versa */ NAME_AFTER, _NAME_DEPENDENCY_MAX -} NameDependency; +}; struct Meta { Manager *manager; NameType type; - NameState state; + NameLoadState load_state; Set *names; Set *dependencies[_NAME_DEPENDENCY_MAX]; @@ -83,164 +105,14 @@ struct Meta { LIST_FIELDS(Meta); }; -typedef enum ServiceState { - SERVICE_DEAD, - SERVICE_BEFORE, - SERVICE_START_PRE, - SERVICE_START, - SERVICE_START_POST, - SERVICE_RUNNING, - SERVICE_RELOAD_PRE, - SERVICE_RELOAD, - SERVICE_RELOAD_POST, - SERVICE_STOP_PRE, - SERVICE_STOP, - SERVICE_SIGTERM, - SERVICE_SIGKILL, - SERVICE_STOP_POST, - SERVICE_HOLDOFF, - SERVICE_MAINTAINANCE -} ServiceState; - -typedef enum ServiceMode { - SERVICE_ONCE, - SERVICE_RESTART -} ServiceMode; - -struct Service { - Meta meta; - - ServiceState state; - ServiceMode mode; -}; - -typedef enum TimerState { - TIMER_DEAD, - TIMER_BEFORE, - TIMER_START_PRE, - TIMER_START, - TIMER_START_POST, - TIMER_WAITING, - TIMER_RUNNING, - TIMER_STOP_PRE, - TIMER_STOP, - TIMER_STOP_POST -} TimerState; - -struct Timer { - Meta meta; - - TimerState state; - Service *subject; - - clockid_t clock_id; - usec_t next_elapse; -}; - -typedef enum SocketState { - SOCKET_DEAD, - SOCKET_BEFORE, - SOCKET_START_PRE, - SOCKET_START, - SOCKET_START_POST, - SOCKET_LISTENING, - SOCKET_RUNNING, - SOCKET_STOP_PRE, - SOCKET_STOP, - SOCKET_STOP_POST, - SOCKET_MAINTAINANCE, - _SOCKET_STATE_MAX -} SocketState; - -struct Socket { - Meta meta; - - SocketState state; - - Address address; - int *fds; - unsigned n_fds; - - Service *subject; -}; - -typedef enum MilestoneState { - MILESTONE_DEAD, - MILESTONE_BEFORE, - MILESTONE_ACTIVE -} MilestoneState; - -struct Milestone { - Meta meta; - - MilestoneState state; -}; - -typedef enum DeviceState { - DEVICE_DEAD, - DEVICE_BEFORE, - DEVICE_AVAILABLE -} DeviceState; - -struct Device { - Meta meta; - - DeviceState state; - char *sysfs; -}; - -typedef enum MountState { - MOUNT_DEAD, - MOUNT_BEFORE, - MOUNT_MOUNTING, - MOUNT_MOUNTED, - MOUNT_UNMOUNTING, - MOUNT_SIGTERM, /* if the mount command hangs */ - MOUNT_SIGKILL, - MOUNT_MAINTAINANCE -} MountState; - -struct Mount { - Meta meta; - - MountState state; - char *path; -}; - -typedef enum AutomountState { - AUTOMOUNT_DEAD, - AUTOMOUNT_BEFORE, - AUTOMOUNT_START_PRE, - AUTOMOUNT_START, - AUTOMOUNT_START_POST, - AUTOMOUNT_WAITING, - AUTOMOUNT_RUNNING, - AUTOMOUNT_STOP_PRE, - AUTOMOUNT_STOP, - AUTOMOUNT_STOP_POST, - AUTOMOUNT_MAINTAINANCE -} AutomountState; - -struct Automount { - Meta meta; - - AutomountState state; - char *path; - Mount *subject; -}; - -typedef enum SnapshotState { - SNAPSHOT_DEAD, - SNAPSHOT_BEFORE, - SNAPSHOT_ACTIVE -} SnapshotState; - -struct Snapshot { - Meta meta; - - SnapshotState state; - bool cleanup:1; -}; +#include "service.h" +#include "timer.h" +#include "socket.h" +#include "milestone.h" +#include "device.h" +#include "mount.h" +#include "automount.h" +#include "snapshot.h" union Name { Meta meta; @@ -254,30 +126,48 @@ union Name { Snapshot snapshot; }; -/* For casting a name into the various name types */ +struct NameVTable { + const char *suffix; + + int (*load)(Name *n); + void (*dump)(Name *n, FILE *f, const char *prefix); + + int (*start)(Name *n); + int (*stop)(Name *n); + int (*reload)(Name *n); + + /* Boils down the more complex internal state of this name to + * a simpler one that the engine can understand */ + NameActiveState (*active_state)(Name *n); + + void (*free_hook)(Name *n); +}; -#define DEFINE_CAST(UPPERCASE, MixedCase, lowercase) \ +/* For casting a name into the various name types */ +#define DEFINE_CAST(UPPERCASE, MixedCase) \ static inline MixedCase* UPPERCASE(Name *name) { \ - if (name->meta.type != NAME_##UPPERCASE) \ + if (!name || name->meta.type != NAME_##UPPERCASE) \ return NULL; \ \ - return &name->lowercase; \ + return (MixedCase*) name; \ } -DEFINE_CAST(SERVICE, Service, service); -DEFINE_CAST(TIMER, Timer, timer); -DEFINE_CAST(SOCKET, Socket, socket); -DEFINE_CAST(MILESTONE, Milestone, milestone); -DEFINE_CAST(DEVICE, Device, device); -DEFINE_CAST(MOUNT, Mount, mount); -DEFINE_CAST(AUTOMOUNT, Automount, automount); -DEFINE_CAST(SNAPSHOT, Snapshot, snapshot); - /* For casting the various name types into a name */ #define NAME(o) ((Name*) (o)) -bool name_is_running(Name *name); -bool name_is_dead(Name *name); +DEFINE_CAST(SOCKET, Socket); +DEFINE_CAST(TIMER, Timer); +DEFINE_CAST(SERVICE, Service); +DEFINE_CAST(MILESTONE, Milestone); +DEFINE_CAST(DEVICE, Device); +DEFINE_CAST(MOUNT, Mount); +DEFINE_CAST(AUTOMOUNT, Automount); +DEFINE_CAST(SNAPSHOT, Snapshot); + +NameActiveState name_active_state(Name *name); + +bool name_type_can_start(NameType t); +bool name_type_can_reload(NameType t); NameType name_type_from_string(const char *n); bool name_is_valid(const char *n); @@ -288,9 +178,17 @@ int name_link(Name *name); int name_link_names(Name *name, bool replace); int name_merge(Name *name, Name *other); int name_sanitize(Name *n); +int name_load_fragment_and_dropin(Name *n); int name_load(Name *name); const char* name_id(Name *n); +const char *name_description(Name *n); void name_dump(Name *n, FILE *f, const char *prefix); +int name_start(Name *n); +int name_stop(Name *n); +int name_reload(Name *n); + +int name_notify(Name *n, NameActiveState old, NameActiveState new); + #endif |