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systemd-stable/name.h

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2009-11-18 02:42:52 +03:00
/*-*- Mode: C; c-basic-offset: 8 -*-*/
#ifndef foonamehfoo
#define foonamehfoo
#include <stdbool.h>
#include <stdlib.h>
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;
#include "job.h"
#include "manager.h"
#include "set.h"
#include "util.h"
#include "list.h"
typedef enum NameType {
NAME_SERVICE = 0,
NAME_TIMER,
NAME_SOCKET,
NAME_MILESTONE,
NAME_DEVICE,
NAME_MOUNT,
NAME_AUTOMOUNT,
NAME_SNAPSHOT,
_NAME_TYPE_MAX,
_NAME_TYPE_INVALID = -1,
} NameType;
typedef enum NameState {
NAME_STUB,
NAME_LOADED,
NAME_FAILED
} NameState;
struct Meta {
Manager *manager;
NameType type;
NameState state;
char **names;
/* Positive dependencies */
Set *requires, *soft_requires, *wants, *requisite, *soft_requisite;
Set *required_by; /* inverse of 'requires', 'soft_requires', 'requisite' and 'soft_requisite' is 'required_by' */
/* Negative dependencies */
Set *conflicts; /* inverse of 'conflicts' is 'conflicts' */
/* Order */
Set *before, *after; /* inverse of before is after and vice versa */
/* Information */
char *description;
/* If there is something to do with this name, then this is
* the job for it */
Job *job;
bool linked:1;
/* Load queue */
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,
TIMER_MAINTAINANCE
} 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
} SocketState;
struct Socket {
Meta meta;
SocketState state;
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_MOUNTED
} 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;
};
union Name {
Meta meta;
Service service;
Timer timer;
Socket socket;
Milestone milestone;
Device device;
Mount mount;
Automount automount;
Snapshot snapshot;
};
/* For casting a name into the various name types */
#define DEFINE_CAST(UPPERCASE, MixedCase, lowercase) \
static inline MixedCase* UPPERCASE(Name *name) { \
if (name->meta.type != NAME_##UPPERCASE) \
return NULL; \
\
return &name->lowercase; \
}
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_ready(Name *name);
NameType name_type_from_string(const char *n);
Name *name_new(Manager *m);
void name_free(Name *name);
int name_link(Name *name);
int name_augment(Name *n);
#endif