X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=job.h;h=f1a588cbc9f916f2f9cc97d5c120e445364de6fa;hp=7a44ae07762a7183bbb5cf5f3164d29454f2f62a;hb=94f043472a5af62dc9cd5767e89ba33872212d5e;hpb=ceed357001a7543c62468c5b943cf80c2a644252 diff --git a/job.h b/job.h index 7a44ae077..f1a588cbc 100644 --- a/job.h +++ b/job.h @@ -9,22 +9,29 @@ typedef struct Job Job; typedef struct JobDependency JobDependency; typedef enum JobType JobType; -typedef enum JobMode JobMode; 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, /* reload if running */ - JOB_RELOAD_OR_START, /* reload if running, start if not running */ - JOB_RESTART, /* stop if running, then start unconditionally */ - JOB_TRY_RESTART, /* stop and start if running */ + + 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 }; @@ -32,8 +39,8 @@ enum JobType { enum JobState { JOB_WAITING, JOB_RUNNING, - JOB_DONE, - _JOB_STATE_MAX + _JOB_STATE_MAX, + _JOB_STATE_INVALID = -1 }; enum JobMode { @@ -50,35 +57,37 @@ struct JobDependency { bool matters; - /* Linked list for the subjects, resp objects */ - JobDependency *subject_prev, *subject_next; - JobDependency *object_prev, *object_next; + LIST_FIELDS(JobDependency, subject); + LIST_FIELDS(JobDependency, object); }; struct Job { Manager *manager; uint32_t id; - Name *name; + Unit *unit; JobType type; JobState state; - bool linked:1; + bool installed:1; + bool in_run_queue:1; bool matters_to_anchor:1; + bool forced:1; - /* These fields are used only while building a transaction */ - Job *transaction_next, *transaction_prev; + LIST_FIELDS(Job, transaction); + LIST_FIELDS(Job, run_queue); - JobDependency *subject_list; - JobDependency *object_list; + LIST_HEAD(JobDependency, subject_list); + LIST_HEAD(JobDependency, object_list); - /* used for graph algs as a "I have been here" marker */ + /* 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, const char *prefix); @@ -90,4 +99,19 @@ 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); + #endif