transaction_unlink_job(tr, j, delete_dependencies);
- if (!j->installed)
- job_free(j);
+ job_free(j);
}
static void transaction_delete_unit(Transaction *tr, Unit *u) {
transaction_delete_job(tr, j, true);
assert(hashmap_isempty(tr->jobs));
-
- assert(!tr->anchor);
}
-static void transaction_find_jobs_that_matter_to_anchor(Transaction *tr, Job *j, unsigned generation) {
+static void transaction_find_jobs_that_matter_to_anchor(Job *j, unsigned generation) {
JobDependency *l;
- assert(tr);
-
/* A recursive sweep through the graph that marks all units
* that matter to the anchor job, i.e. are directly or
* indirectly a dependency of the anchor job via paths that
* are fully marked as mattering. */
- if (j)
- l = j->subject_list;
- else
- l = tr->anchor;
+ j->matters_to_anchor = true;
+ j->generation = generation;
- LIST_FOREACH(subject, l, l) {
+ LIST_FOREACH(subject, l, j->subject_list) {
/* This link does not matter */
if (!l->matters)
if (l->object->generation == generation)
continue;
- l->object->matters_to_anchor = true;
- l->object->generation = generation;
-
- transaction_find_jobs_that_matter_to_anchor(tr, l->object, generation);
+ transaction_find_jobs_that_matter_to_anchor(l->object, generation);
}
}
LIST_FOREACH(transaction, k, j->transaction_next)
assert_se(job_type_merge(&t, k->type) == 0);
- /* If an active job is mergeable, merge it too */
- if (j->unit->job)
- job_type_merge(&t, j->unit->job->type); /* Might fail. Which is OK */
-
while ((k = j->transaction_next)) {
- if (j->installed) {
+ if (tr->anchor_job == k) {
transaction_merge_and_delete_job(tr, k, j, t);
j = k;
} else
transaction_merge_and_delete_job(tr, j, k, t);
}
- if (j->unit->job && !j->installed)
- transaction_merge_and_delete_job(tr, j, j->unit->job, t);
-
assert(!j->transaction_next);
assert(!j->transaction_prev);
}
LIST_FOREACH(transaction, k, j) {
- if (!job_is_anchor(k) &&
- (k->installed || job_type_is_redundant(k->type, unit_active_state(k->unit))) &&
+ if (tr->anchor_job != k &&
+ job_type_is_redundant(k->type, unit_active_state(k->unit)) &&
(!k->unit->job || !job_type_is_conflicting(k->type, k->unit->job->type)))
continue;
log_info("Walked on cycle path to %s/%s", k->unit->id, job_type_to_string(k->type));
if (!delete &&
- !k->installed &&
!unit_matters_to_anchor(k->unit, k)) {
/* Ok, we can drop this one, so let's
* do so. */
again = false;
HASHMAP_FOREACH(j, tr->jobs, i) {
- if (j->object_list) {
+ if (tr->anchor_job == j || j->object_list) {
/* log_debug("Keeping job %s/%s because of %s/%s", */
/* j->unit->id, job_type_to_string(j->type), */
/* j->object_list->subject ? j->object_list->subject->unit->id : "root", */
assert(!j->transaction_next);
if (j->unit->job &&
- j->unit->job != j &&
!job_type_is_superset(j->type, j->unit->job->type)) {
dbus_set_error(e, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE, "Transaction is destructive.");
assert(!j->transaction_prev);
assert(!j->transaction_next);
- if (j->installed)
- continue;
-
r = hashmap_put(m->jobs, UINT32_TO_PTR(j->id), j);
if (r < 0)
goto rollback;
}
while ((j = hashmap_steal_first(tr->jobs))) {
- Job *uj;
- if (j->installed) {
- /* log_debug("Skipping already installed job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id); */
- continue;
- }
-
- uj = j->unit->job;
- if (uj) {
- job_uninstall(uj);
- job_free(uj);
- }
-
- j->unit->job = j;
- j->installed = true;
- m->n_installed_jobs ++;
-
- /* We're fully installed. Now let's free data we don't
- * need anymore. */
-
- assert(!j->transaction_next);
- assert(!j->transaction_prev);
+ Job *installed_job;
/* Clean the job dependencies */
transaction_unlink_job(tr, j, false);
+ installed_job = job_install(j);
+ if (installed_job != j) {
+ /* j has been merged into a previously installed job */
+ if (tr->anchor_job == j)
+ tr->anchor_job = installed_job;
+ hashmap_remove(m->jobs, UINT32_TO_PTR(j->id));
+ job_free(j);
+ j = installed_job;
+ }
+
job_add_to_run_queue(j);
job_add_to_dbus_queue(j);
job_start_timer(j);
-
- log_debug("Installed new job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id);
}
- assert(!tr->anchor);
-
return 0;
rollback:
- HASHMAP_FOREACH(j, tr->jobs, i) {
- if (j->installed)
- continue;
-
+ HASHMAP_FOREACH(j, tr->jobs, i)
hashmap_remove(m->jobs, UINT32_TO_PTR(j->id));
- }
return r;
}
* the actual list of jobs, if possible. */
/* First step: figure out which jobs matter */
- transaction_find_jobs_that_matter_to_anchor(tr, NULL, generation++);
+ transaction_find_jobs_that_matter_to_anchor(tr->anchor_job, generation++);
/* Second step: Try not to stop any running services if
* we don't have to. Don't try to reverse running
}
assert(hashmap_isempty(tr->jobs));
- assert(!tr->anchor);
return 0;
}
return j;
}
-static void transaction_job_dependency_free(Transaction *tr, JobDependency *l) {
- if (!l->subject)
- LIST_REMOVE(JobDependency, subject, tr->anchor, l);
- job_dependency_free(l);
-}
-
static void transaction_unlink_job(Transaction *tr, Job *j, bool delete_dependencies) {
assert(tr);
assert(j);
j->transaction_prev = j->transaction_next = NULL;
while (j->subject_list)
- transaction_job_dependency_free(tr, j->subject_list);
+ job_dependency_free(j->subject_list);
while (j->object_list) {
Job *other = j->object_list->matters ? j->object_list->subject : NULL;
- transaction_job_dependency_free(tr, j->object_list);
+ job_dependency_free(j->object_list);
if (other && delete_dependencies) {
log_debug("Deleting job %s/%s as dependency of job %s/%s",
bool ignore_order,
DBusError *e) {
Job *ret;
- JobDependency *l;
Iterator i;
Unit *dep;
int r;
ret->ignore_order = ret->ignore_order || ignore_order;
/* Then, add a link to the job. */
- l = job_dependency_new(by, ret, matters, conflicts);
- if (!l)
- return -ENOMEM;
-
- /* If the link has no subject job, it's the anchor link. */
- if (!by) {
- LIST_PREPEND(JobDependency, subject, tr->anchor, l);
- if (!tr->anchor_job)
- tr->anchor_job = ret;
+ if (by) {
+ if (!job_dependency_new(by, ret, matters, conflicts))
+ return -ENOMEM;
+ } else {
+ /* If the job has no parent job, it is the anchor job. */
+ assert(!tr->anchor_job);
+ tr->anchor_job = ret;
}
-
if (is_new && !ignore_requirements) {
Set *following;
}
/* Finally, recursively add in all dependencies. */
- if (type == JOB_START || type == JOB_RELOAD_OR_START) {
+ if (type == JOB_START || type == JOB_RELOAD_OR_START || type == JOB_RESTART) {
SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUIRES], i) {
r = transaction_add_job_and_dependencies(tr, JOB_START, dep, ret, true, override, false, false, ignore_order, e);
if (r < 0) {
if (hashmap_get(tr->jobs, u))
continue;
- r = transaction_add_job_and_dependencies(tr, JOB_STOP, u, NULL, true, false, false, false, false, NULL);
+ r = transaction_add_job_and_dependencies(tr, JOB_STOP, u, tr->anchor_job, true, false, false, false, false, NULL);
if (r < 0)
log_warning("Cannot add isolate job for unit %s, ignoring: %s", u->id, strerror(-r));
}
~ianmdlvl / elogind.git / blobdiff