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151 lines
4.0 KiB
C
151 lines
4.0 KiB
C
/*-*- Mode: C; c-basic-offset: 8 -*-*/
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#ifndef foojobhfoo
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#define foojobhfoo
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdbool.h>
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#include <inttypes.h>
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typedef struct Job Job;
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typedef struct JobDependency JobDependency;
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typedef enum JobType JobType;
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typedef enum JobState JobState;
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typedef enum JobMode JobMode;
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#include "manager.h"
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#include "unit.h"
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#include "hashmap.h"
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#include "list.h"
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enum JobType {
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JOB_START, /* if a unit does not support being started, we'll just wait until it becomes active */
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JOB_VERIFY_ACTIVE,
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JOB_STOP,
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JOB_RELOAD, /* if running reload */
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JOB_RELOAD_OR_START, /* if running reload, if not running start */
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/* Note that restarts are first treated like JOB_STOP, but
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* then instead of finishing are patched to become
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* JOB_START. */
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JOB_RESTART, /* if running stop, then start unconditionally */
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JOB_TRY_RESTART, /* if running stop and then start */
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_JOB_TYPE_MAX,
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_JOB_TYPE_INVALID = -1
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};
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enum JobState {
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JOB_WAITING,
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JOB_RUNNING,
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_JOB_STATE_MAX,
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_JOB_STATE_INVALID = -1
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};
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enum JobMode {
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JOB_FAIL,
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JOB_REPLACE,
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_JOB_MODE_MAX,
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_JOB_MODE_INVALID = -1
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};
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struct JobDependency {
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/* Encodes that the 'subject' job needs the 'object' job in
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* some way. This structure is used only while building a transaction. */
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Job *subject;
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Job *object;
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bool matters;
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LIST_FIELDS(JobDependency, subject);
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LIST_FIELDS(JobDependency, object);
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};
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struct Job {
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Manager *manager;
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uint32_t id;
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Unit *unit;
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JobType type;
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JobState state;
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bool installed:1;
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bool in_run_queue:1;
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bool matters_to_anchor:1;
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bool forced:1;
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bool in_dbus_queue:1;
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bool sent_dbus_new_signal:1;
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LIST_FIELDS(Job, transaction);
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LIST_FIELDS(Job, run_queue);
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LIST_FIELDS(Job, dbus_queue);
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LIST_HEAD(JobDependency, subject_list);
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LIST_HEAD(JobDependency, object_list);
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/* Used for graph algs as a "I have been here" marker */
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Job* marker;
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unsigned generation;
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};
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Job* job_new(Manager *m, JobType type, Unit *unit);
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void job_free(Job *job);
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void job_dump(Job *j, FILE*f, const char *prefix);
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JobDependency* job_dependency_new(Job *subject, Job *object, bool matters);
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void job_dependency_free(JobDependency *l);
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void job_dependency_delete(Job *subject, Job *object, bool *matters);
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bool job_is_anchor(Job *j);
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int job_merge(Job *j, Job *other);
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int job_type_merge(JobType *a, JobType b);
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bool job_type_is_mergeable(JobType a, JobType b);
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bool job_type_is_superset(JobType a, JobType b);
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bool job_type_is_conflicting(JobType a, JobType b);
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bool job_type_is_redundant(JobType a, UnitActiveState b);
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bool job_is_runnable(Job *j);
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void job_add_to_run_queue(Job *j);
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void job_add_to_dbus_queue(Job *j);
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int job_run_and_invalidate(Job *j);
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int job_finish_and_invalidate(Job *j, bool success);
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const char* job_type_to_string(JobType t);
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JobType job_type_from_string(const char *s);
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const char* job_state_to_string(JobState t);
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JobState job_state_from_string(const char *s);
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const char* job_mode_to_string(JobMode t);
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JobMode job_mode_from_string(const char *s);
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char *job_dbus_path(Job *j);
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#endif
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