initial commit

1 files changed, 270 insertions, 0 deletions

diff --git a/name.h b/name.h
new file mode 100644
index 0000000000..3b364f00f3
--- /dev/null
+++ b/name.h
@@ -0,0 +1,270 @@
+/*-*- 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