#include <inttypes.h>
typedef struct Job Job;
+typedef struct JobDependency JobDependency;
typedef enum JobType JobType;
+typedef enum JobState JobState;
typedef enum JobMode JobMode;
#include "manager.h"
-#include "name.h"
+#include "unit.h"
#include "hashmap.h"
#include "list.h"
enum JobType {
- JOB_START,
+ JOB_START, /* if a unit does not support being started, we'll just wait until it becomes active */
+ JOB_VERIFY_ACTIVE,
+
JOB_STOP,
- JOB_VERIFY_STARTED,
- JOB_RELOAD,
- JOB_RESTART,
- JOB_TRY_RESTART, /* restart if running */
- JOB_RESTART_FINISH, /* 2nd part of a restart, i.e. the actual starting */
- _JOB_TYPE_MAX
+
+ JOB_RELOAD, /* if running reload */
+ JOB_RELOAD_OR_START, /* if running reload, if not running start */
+
+ /* Note that restarts are first treated like JOB_STOP, but
+ * then instead of finishing are patched to become
+ * JOB_START. */
+ JOB_RESTART, /* if running stop, then start unconditionally */
+ JOB_TRY_RESTART, /* if running stop and then start */
+
+ _JOB_TYPE_MAX,
+ _JOB_TYPE_INVALID = -1
};
-typedef enum JobState {
+enum JobState {
JOB_WAITING,
JOB_RUNNING,
- JOB_DONE,
- _JOB_STATE_MAX
-} JobState;
+ _JOB_STATE_MAX,
+ _JOB_STATE_INVALID = -1
+};
enum JobMode {
JOB_FAIL,
_JOB_MODE_MAX
};
+struct JobDependency {
+ /* Encodes that the 'subject' job needs the 'object' job in
+ * some way. This structure is used only while building a transaction. */
+ Job *subject;
+ Job *object;
+
+ bool matters;
+
+ LIST_FIELDS(JobDependency, subject);
+ LIST_FIELDS(JobDependency, object);
+};
+
struct Job {
Manager *manager;
uint32_t id;
+ Unit *unit;
+
JobType type;
JobState state;
- Name *name;
- bool linked:1;
+ bool installed:1;
+ bool in_run_queue:1;
+ bool matters_to_anchor:1;
+ bool forced:1;
+
+ LIST_FIELDS(Job, transaction);
+ LIST_FIELDS(Job, run_queue);
+
+ LIST_HEAD(JobDependency, subject_list);
+ LIST_HEAD(JobDependency, object_list);
+
+ /* Used for graph algs as a "I have been here" marker */
+ Job* marker;
+ unsigned generation;
+
};
-Job* job_new(Manager *m, JobType type, Name *name);
+Job* job_new(Manager *m, JobType type, Unit *unit);
void job_free(Job *job);
-void job_dump(Job *j, FILE*f);
+void job_dump(Job *j, FILE*f, const char *prefix);
+
+JobDependency* job_dependency_new(Job *subject, Job *object, bool matters);
+void job_dependency_free(JobDependency *l);
+void job_dependency_delete(Job *subject, Job *object, bool *matters);
+
+bool job_is_anchor(Job *j);
+
+int job_merge(Job *j, Job *other);
+
+int job_type_merge(JobType *a, JobType b);
+bool job_type_is_mergeable(JobType a, JobType b);
+bool job_type_is_superset(JobType a, JobType b);
+bool job_type_is_conflicting(JobType a, JobType b);
+
+void job_schedule_run(Job *j);
+int job_run_and_invalidate(Job *j);
+int job_finish_and_invalidate(Job *j, bool success);
+
+const char* job_type_to_string(JobType t);
+JobType job_type_from_string(const char *s);
+
+const char* job_state_to_string(JobState t);
+JobState job_state_from_string(const char *s);
+
+char *job_dbus_path(Job *j);
#endif