job.h revision e99e38bbdcca3fe5956823bdb3d38544ccf93221
17N/A/*-*- Mode: C; c-basic-offset: 8 -*-*/
17N/A
493N/A#ifndef foojobhfoo
17N/A#define foojobhfoo
17N/A
17N/A/***
17N/A This file is part of systemd.
17N/A
17N/A Copyright 2010 Lennart Poettering
17N/A
17N/A systemd is free software; you can redistribute it and/or modify it
17N/A under the terms of the GNU General Public License as published by
17N/A the Free Software Foundation; either version 2 of the License, or
17N/A (at your option) any later version.
17N/A
17N/A systemd is distributed in the hope that it will be useful, but
17N/A WITHOUT ANY WARRANTY; without even the implied warranty of
17N/A MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17N/A General Public License for more details.
17N/A
17N/A You should have received a copy of the GNU General Public License
17N/A along with systemd; If not, see <http://www.gnu.org/licenses/>.
17N/A***/
17N/A
17N/A#include <stdbool.h>
17N/A#include <inttypes.h>
17N/A
17N/Atypedef struct Job Job;
17N/Atypedef struct JobDependency JobDependency;
17N/Atypedef enum JobType JobType;
493N/Atypedef enum JobState JobState;
17N/Atypedef enum JobMode JobMode;
17N/A
493N/A#include "manager.h"
493N/A#include "unit.h"
17N/A#include "hashmap.h"
17N/A#include "list.h"
493N/A
17N/Aenum JobType {
17N/A JOB_START, /* if a unit does not support being started, we'll just wait until it becomes active */
17N/A JOB_VERIFY_ACTIVE,
17N/A
17N/A JOB_STOP,
493N/A
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
};
enum JobState {
JOB_WAITING,
JOB_RUNNING,
_JOB_STATE_MAX,
_JOB_STATE_INVALID = -1
};
enum JobMode {
JOB_FAIL,
JOB_REPLACE,
JOB_ISOLATE,
_JOB_MODE_MAX,
_JOB_MODE_INVALID = -1
};
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;
LIST_FIELDS(JobDependency, subject);
LIST_FIELDS(JobDependency, object);
bool matters;
};
struct Job {
Manager *manager;
Unit *unit;
LIST_FIELDS(Job, transaction);
LIST_FIELDS(Job, run_queue);
LIST_FIELDS(Job, dbus_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;
uint32_t id;
JobType type;
JobState state;
bool installed:1;
bool in_run_queue:1;
bool matters_to_anchor:1;
bool override:1;
bool in_dbus_queue:1;
bool sent_dbus_new_signal:1;
};
Job* job_new(Manager *m, JobType type, Unit *unit);
void job_free(Job *job);
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);
bool job_type_is_redundant(JobType a, UnitActiveState b);
bool job_is_runnable(Job *j);
void job_add_to_run_queue(Job *j);
void job_add_to_dbus_queue(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);
const char* job_mode_to_string(JobMode t);
JobMode job_mode_from_string(const char *s);
char *job_dbus_path(Job *j);
#endif