X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Ftransaction.c;h=4a8d90e6e569692c14f5890eae89ad69033a0cc3;hp=d495cbddc60dff5def0187cd32a6e449f68f9a09;hb=7f602784de4fd378120e8ebfe6d830862b9cae03;hpb=05d576f1f77699ea5c2e5ed0e04451b14dfc45a0 diff --git a/src/core/transaction.c b/src/core/transaction.c index d495cbddc..4a8d90e6e 100644 --- a/src/core/transaction.c +++ b/src/core/transaction.c @@ -1,3 +1,27 @@ +/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ + +/*** + This file is part of systemd. + + Copyright 2010 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see . +***/ + +#include +#include + #include "transaction.h" #include "bus-errors.h" @@ -11,8 +35,7 @@ static void transaction_delete_job(Transaction *tr, Job *j, bool delete_dependen 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) { @@ -31,7 +54,7 @@ void transaction_abort(Transaction *tr) { assert(tr); while ((j = hashmap_first(tr->jobs))) - transaction_delete_job(tr, j, true); + transaction_delete_job(tr, j, false); assert(hashmap_isempty(tr->jobs)); } @@ -74,6 +97,7 @@ static void transaction_merge_and_delete_job(Transaction *tr, Job *j, Job *other j->type = t; j->state = JOB_WAITING; j->override = j->override || other->override; + j->irreversible = j->irreversible || other->irreversible; j->matters_to_anchor = j->matters_to_anchor || other->matters_to_anchor; @@ -163,8 +187,14 @@ static int delete_one_unmergeable_job(Transaction *tr, Job *j) { * another unit in which case we * rather remove the start. */ - log_debug("Looking at job %s/%s conflicted_by=%s", j->unit->id, job_type_to_string(j->type), yes_no(j->type == JOB_STOP && job_is_conflicted_by(j))); - log_debug("Looking at job %s/%s conflicted_by=%s", k->unit->id, job_type_to_string(k->type), yes_no(k->type == JOB_STOP && job_is_conflicted_by(k))); + log_debug_unit(j->unit->id, + "Looking at job %s/%s conflicted_by=%s", + j->unit->id, job_type_to_string(j->type), + yes_no(j->type == JOB_STOP && job_is_conflicted_by(j))); + log_debug_unit(k->unit->id, + "Looking at job %s/%s conflicted_by=%s", + k->unit->id, job_type_to_string(k->type), + yes_no(k->type == JOB_STOP && job_is_conflicted_by(k))); if (j->type == JOB_STOP) { @@ -190,7 +220,9 @@ static int delete_one_unmergeable_job(Transaction *tr, Job *j) { return -ENOEXEC; /* Ok, we can drop one, so let's do so. */ - log_debug("Fixing conflicting jobs by deleting job %s/%s", d->unit->id, job_type_to_string(d->type)); + log_debug_unit(d->unit->id, + "Fixing conflicting jobs by deleting job %s/%s", + d->unit->id, job_type_to_string(d->type)); transaction_delete_job(tr, d, true); return 0; } @@ -213,7 +245,7 @@ static int transaction_merge_jobs(Transaction *tr, DBusError *e) { t = j->type; LIST_FOREACH(transaction, k, j->transaction_next) { - if (job_type_merge(&t, k->type) >= 0) + if (job_type_merge_and_collapse(&t, k->type, j->unit) >= 0) continue; /* OK, we could not merge all jobs for this @@ -239,25 +271,18 @@ static int transaction_merge_jobs(Transaction *tr, DBusError *e) { JobType t = j->type; Job *k; - /* Merge all transactions */ + /* Merge all transaction jobs for j->unit */ 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 */ + assert_se(job_type_merge_and_collapse(&t, k->type, j->unit) == 0); 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); } @@ -266,44 +291,32 @@ static int transaction_merge_jobs(Transaction *tr, DBusError *e) { } static void transaction_drop_redundant(Transaction *tr) { - bool again; - - assert(tr); - - /* Goes through the transaction and removes all jobs that are - * a noop */ - - do { - Job *j; - Iterator i; - - again = false; - - HASHMAP_FOREACH(j, tr->jobs, i) { - bool changes_something = false; - Job *k; + Job *j; + Iterator i; - LIST_FOREACH(transaction, k, j) { + /* Goes through the transaction and removes all jobs of the units + * whose jobs are all noops. If not all of a unit's jobs are + * redundant, they are kept. */ - if (tr->anchor_job != k && - (k->installed || 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; + assert(tr); - changes_something = true; - break; - } +rescan: + HASHMAP_FOREACH(j, tr->jobs, i) { + Job *k; - if (changes_something) - continue; + LIST_FOREACH(transaction, k, j) { - /* log_debug("Found redundant job %s/%s, dropping.", j->unit->id, job_type_to_string(j->type)); */ - transaction_delete_job(tr, j, false); - again = true; - break; + 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))) + goto next_unit; } - } while (again); + /* log_debug("Found redundant job %s/%s, dropping.", j->unit->id, job_type_to_string(j->type)); */ + transaction_delete_job(tr, j, false); + goto rescan; + next_unit:; + } } static bool unit_matters_to_anchor(Unit *u, Job *j) { @@ -348,15 +361,19 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi * job to remove. We use the marker to find our way * back, since smart how we are we stored our way back * in there. */ - log_warning("Found ordering cycle on %s/%s", j->unit->id, job_type_to_string(j->type)); + log_warning_unit(j->unit->id, + "Found ordering cycle on %s/%s", + j->unit->id, job_type_to_string(j->type)); delete = NULL; for (k = from; k; k = ((k->generation == generation && k->marker != k) ? k->marker : NULL)) { - log_info("Walked on cycle path to %s/%s", k->unit->id, job_type_to_string(k->type)); + /* logging for j not k here here to provide consistent narrative */ + log_info_unit(j->unit->id, + "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. */ @@ -371,14 +388,24 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi if (delete) { - log_warning("Breaking ordering cycle by deleting job %s/%s", delete->unit->id, job_type_to_string(delete->type)); + /* logging for j not k here here to provide consistent narrative */ + log_warning_unit(j->unit->id, + "Breaking ordering cycle by deleting job %s/%s", + delete->unit->id, job_type_to_string(delete->type)); + log_error_unit(delete->unit->id, + "Job %s/%s deleted to break ordering cycle starting with %s/%s", + delete->unit->id, job_type_to_string(delete->type), + j->unit->id, job_type_to_string(j->type)); + unit_status_printf(delete->unit, ANSI_HIGHLIGHT_RED_ON " SKIP " ANSI_HIGHLIGHT_OFF, + "Ordering cycle found, skipping %s"); transaction_delete_unit(tr, delete->unit); return -EAGAIN; } log_error("Unable to break cycle"); - dbus_set_error(e, BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC, "Transaction order is cyclic. See system logs for details."); + dbus_set_error(e, BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC, + "Transaction order is cyclic. See system logs for details."); return -ENOEXEC; } @@ -389,7 +416,7 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi j->marker = from ? from : j; j->generation = generation; - /* We assume that the the dependencies are bidirectional, and + /* We assume that the dependencies are bidirectional, and * hence can ignore UNIT_AFTER */ SET_FOREACH(u, j->unit->dependencies[UNIT_BEFORE], i) { Job *o; @@ -439,37 +466,30 @@ static int transaction_verify_order(Transaction *tr, unsigned *generation, DBusE } static void transaction_collect_garbage(Transaction *tr) { - bool again; + Iterator i; + Job *j; assert(tr); /* Drop jobs that are not required by any other job */ - do { - Iterator i; - Job *j; - - again = false; - - HASHMAP_FOREACH(j, tr->jobs, i) { - 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", */ - /* j->object_list->subject ? job_type_to_string(j->object_list->subject->type) : "root"); */ - continue; - } - - /* log_debug("Garbage collecting job %s/%s", j->unit->id, job_type_to_string(j->type)); */ - transaction_delete_job(tr, j, true); - again = true; - break; +rescan: + HASHMAP_FOREACH(j, tr->jobs, i) { + 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", */ + /* j->object_list->subject ? job_type_to_string(j->object_list->subject->type) : "root"); */ + continue; } - } while (again); + /* log_debug("Garbage collecting job %s/%s", j->unit->id, job_type_to_string(j->type)); */ + transaction_delete_job(tr, j, true); + goto rescan; + } } -static int transaction_is_destructive(Transaction *tr, DBusError *e) { +static int transaction_is_destructive(Transaction *tr, JobMode mode, DBusError *e) { Iterator i; Job *j; @@ -484,8 +504,7 @@ static int transaction_is_destructive(Transaction *tr, DBusError *e) { assert(!j->transaction_prev); assert(!j->transaction_next); - if (j->unit->job && - j->unit->job != j && + if (j->unit->job && (mode == JOB_FAIL || j->unit->job->irreversible) && !job_type_is_superset(j->type, j->unit->job->type)) { dbus_set_error(e, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE, "Transaction is destructive."); @@ -497,59 +516,56 @@ static int transaction_is_destructive(Transaction *tr, DBusError *e) { } static void transaction_minimize_impact(Transaction *tr) { - bool again; + Job *j; + Iterator i; + assert(tr); /* Drops all unnecessary jobs that reverse already active jobs * or that stop a running service. */ - do { - Job *j; - Iterator i; - - again = false; - - HASHMAP_FOREACH(j, tr->jobs, i) { - LIST_FOREACH(transaction, j, j) { - bool stops_running_service, changes_existing_job; - - /* If it matters, we shouldn't drop it */ - if (j->matters_to_anchor) - continue; +rescan: + HASHMAP_FOREACH(j, tr->jobs, i) { + LIST_FOREACH(transaction, j, j) { + bool stops_running_service, changes_existing_job; - /* Would this stop a running service? - * Would this change an existing job? - * If so, let's drop this entry */ + /* If it matters, we shouldn't drop it */ + if (j->matters_to_anchor) + continue; - stops_running_service = - j->type == JOB_STOP && UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(j->unit)); + /* Would this stop a running service? + * Would this change an existing job? + * If so, let's drop this entry */ - changes_existing_job = - j->unit->job && - job_type_is_conflicting(j->type, j->unit->job->type); + stops_running_service = + j->type == JOB_STOP && UNIT_IS_ACTIVE_OR_ACTIVATING(unit_active_state(j->unit)); - if (!stops_running_service && !changes_existing_job) - continue; + changes_existing_job = + j->unit->job && + job_type_is_conflicting(j->type, j->unit->job->type); - if (stops_running_service) - log_debug("%s/%s would stop a running service.", j->unit->id, job_type_to_string(j->type)); + if (!stops_running_service && !changes_existing_job) + continue; - if (changes_existing_job) - log_debug("%s/%s would change existing job.", j->unit->id, job_type_to_string(j->type)); + if (stops_running_service) + log_debug_unit(j->unit->id, + "%s/%s would stop a running service.", + j->unit->id, job_type_to_string(j->type)); - /* Ok, let's get rid of this */ - log_debug("Deleting %s/%s to minimize impact.", j->unit->id, job_type_to_string(j->type)); + if (changes_existing_job) + log_debug_unit(j->unit->id, + "%s/%s would change existing job.", + j->unit->id, job_type_to_string(j->type)); - transaction_delete_job(tr, j, true); - again = true; - break; - } + /* Ok, let's get rid of this */ + log_debug_unit(j->unit->id, + "Deleting %s/%s to minimize impact.", + j->unit->id, job_type_to_string(j->type)); - if (again) - break; + transaction_delete_job(tr, j, true); + goto rescan; } - - } while (again); + } } static int transaction_apply(Transaction *tr, Manager *m, JobMode mode) { @@ -563,18 +579,16 @@ static int transaction_apply(Transaction *tr, Manager *m, JobMode mode) { /* When isolating first kill all installed jobs which * aren't part of the new transaction */ - rescan: HASHMAP_FOREACH(j, m->jobs, i) { assert(j->installed); if (hashmap_get(tr->jobs, j->unit)) continue; - /* 'j' itself is safe to remove, but if other jobs - are invalidated recursively, our iterator may become - invalid and we need to start over. */ - if (job_finish_and_invalidate(j, JOB_CANCELED) > 0) - goto rescan; + /* Not invalidating recursively. Avoids triggering + * OnFailure= actions of dependent jobs. Also avoids + * invalidating our iterator. */ + job_finish_and_invalidate(j, JOB_CANCELED, false); } } @@ -583,45 +597,46 @@ static int transaction_apply(Transaction *tr, Manager *m, JobMode mode) { 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))) { - 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; - } + Job *installed_job; /* Clean the job dependencies */ transaction_unlink_job(tr, j, false); - job_install(j); + 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); + job_shutdown_magic(j); } 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; } int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e) { + Iterator i; + Job *j; int r; unsigned generation = 1; @@ -630,6 +645,12 @@ int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e /* This applies the changes recorded in tr->jobs to * the actual list of jobs, if possible. */ + /* Reset the generation counter of all installed jobs. The detection of cycles + * looks at installed jobs. If they had a non-zero generation from some previous + * walk of the graph, the algorithm would break. */ + HASHMAP_FOREACH(j, m->jobs, i) + j->generation = 0; + /* First step: figure out which jobs matter */ transaction_find_jobs_that_matter_to_anchor(tr->anchor_job, generation++); @@ -689,12 +710,10 @@ int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e transaction_drop_redundant(tr); /* Ninth step: check whether we can actually apply this */ - if (mode == JOB_FAIL) { - r = transaction_is_destructive(tr, e); - if (r < 0) { - log_notice("Requested transaction contradicts existing jobs: %s", bus_error(e, r)); - return r; - } + r = transaction_is_destructive(tr, mode, e); + if (r < 0) { + log_notice("Requested transaction contradicts existing jobs: %s", bus_error(e, r)); + return r; } /* Tenth step: apply changes */ @@ -706,6 +725,17 @@ int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e assert(hashmap_isempty(tr->jobs)); + if (!hashmap_isempty(m->jobs)) { + /* Are there any jobs now? Then make sure we have the + * idle pipe around. We don't really care too much + * whether this works or not, as the idle pipe is a + * feature for cosmetics, not actually useful for + * anything beyond that. */ + + if (m->idle_pipe[0] < 0 && m->idle_pipe[1] < 0) + pipe2(m->idle_pipe, O_NONBLOCK|O_CLOEXEC); + } + return 0; } @@ -739,6 +769,7 @@ static Job* transaction_add_one_job(Transaction *tr, JobType type, Unit *unit, b j->marker = NULL; j->matters_to_anchor = false; j->override = override; + j->irreversible = tr->irreversible; LIST_PREPEND(Job, transaction, f, j); @@ -781,9 +812,10 @@ static void transaction_unlink_job(Transaction *tr, Job *j, bool delete_dependen job_dependency_free(j->object_list); if (other && delete_dependencies) { - log_debug("Deleting job %s/%s as dependency of job %s/%s", - other->unit->id, job_type_to_string(other->type), - j->unit->id, job_type_to_string(j->type)); + log_debug_unit(other->unit->id, + "Deleting job %s/%s as dependency of job %s/%s", + other->unit->id, job_type_to_string(other->type), + j->unit->id, job_type_to_string(j->type)); transaction_delete_job(tr, other, delete_dependencies); } } @@ -808,6 +840,7 @@ int transaction_add_job_and_dependencies( assert(tr); assert(type < _JOB_TYPE_MAX); + assert(type < _JOB_TYPE_MAX_IN_TRANSACTION); assert(unit); /* log_debug("Pulling in %s/%s from %s/%s", */ @@ -834,7 +867,7 @@ int transaction_add_job_and_dependencies( if (type != JOB_STOP && unit->load_state == UNIT_MASKED) { dbus_set_error(e, BUS_ERROR_MASKED, "Unit %s is masked.", unit->id); - return -EINVAL; + return -EADDRNOTAVAIL; } if (!unit_job_is_applicable(unit, type)) { @@ -858,7 +891,8 @@ int transaction_add_job_and_dependencies( assert(!tr->anchor_job); tr->anchor_job = ret; } - if (is_new && !ignore_requirements) { + + if (is_new && !ignore_requirements && type != JOB_NOP) { Set *following; /* If we are following some other unit, make sure we @@ -867,7 +901,9 @@ int transaction_add_job_and_dependencies( SET_FOREACH(dep, following, i) { r = transaction_add_job_and_dependencies(tr, type, dep, ret, false, override, false, false, ignore_order, e); if (r < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); + log_warning_unit(dep->id, + "Cannot add dependency job for unit %s, ignoring: %s", + dep->id, bus_error(e, r)); if (e) dbus_error_free(e); @@ -878,7 +914,7 @@ int transaction_add_job_and_dependencies( } /* Finally, recursively add in all dependencies. */ - if (type == JOB_START || type == JOB_RELOAD_OR_START) { + if (type == JOB_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) { @@ -890,7 +926,7 @@ int transaction_add_job_and_dependencies( } } - SET_FOREACH(dep, ret->unit->dependencies[UNIT_BIND_TO], i) { + SET_FOREACH(dep, ret->unit->dependencies[UNIT_BINDS_TO], i) { r = transaction_add_job_and_dependencies(tr, JOB_START, dep, ret, true, override, false, false, ignore_order, e); if (r < 0) { if (r != -EBADR) @@ -904,7 +940,9 @@ int transaction_add_job_and_dependencies( SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUIRES_OVERRIDABLE], i) { r = transaction_add_job_and_dependencies(tr, JOB_START, dep, ret, !override, override, false, false, ignore_order, e); if (r < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); + log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id, + "Cannot add dependency job for unit %s, ignoring: %s", + dep->id, bus_error(e, r)); if (e) dbus_error_free(e); @@ -914,7 +952,9 @@ int transaction_add_job_and_dependencies( SET_FOREACH(dep, ret->unit->dependencies[UNIT_WANTS], i) { r = transaction_add_job_and_dependencies(tr, JOB_START, dep, ret, false, false, false, false, ignore_order, e); if (r < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); + log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id, + "Cannot add dependency job for unit %s, ignoring: %s", + dep->id, bus_error(e, r)); if (e) dbus_error_free(e); @@ -935,7 +975,9 @@ int transaction_add_job_and_dependencies( SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUISITE_OVERRIDABLE], i) { r = transaction_add_job_and_dependencies(tr, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, false, ignore_order, e); if (r < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); + log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id, + "Cannot add dependency job for unit %s, ignoring: %s", + dep->id, bus_error(e, r)); if (e) dbus_error_free(e); @@ -956,7 +998,9 @@ int transaction_add_job_and_dependencies( SET_FOREACH(dep, ret->unit->dependencies[UNIT_CONFLICTED_BY], i) { r = transaction_add_job_and_dependencies(tr, JOB_STOP, dep, ret, false, override, false, false, ignore_order, e); if (r < 0) { - log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); + log_warning_unit(dep->id, + "Cannot add dependency job for unit %s, ignoring: %s", + dep->id, bus_error(e, r)); if (e) dbus_error_free(e); @@ -965,7 +1009,7 @@ int transaction_add_job_and_dependencies( } - if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) { + if (type == JOB_STOP || type == JOB_RESTART) { SET_FOREACH(dep, ret->unit->dependencies[UNIT_REQUIRED_BY], i) { r = transaction_add_job_and_dependencies(tr, type, dep, ret, true, override, false, false, ignore_order, e); @@ -988,14 +1032,28 @@ int transaction_add_job_and_dependencies( dbus_error_free(e); } } + + SET_FOREACH(dep, ret->unit->dependencies[UNIT_CONSISTS_OF], i) { + r = transaction_add_job_and_dependencies(tr, type, dep, ret, true, override, false, false, ignore_order, e); + if (r < 0) { + if (r != -EBADR) + goto fail; + + if (e) + dbus_error_free(e); + } + } + } - if (type == JOB_RELOAD || type == JOB_RELOAD_OR_START) { + if (type == JOB_RELOAD) { - SET_FOREACH(dep, ret->unit->dependencies[UNIT_PROPAGATE_RELOAD_TO], i) { + SET_FOREACH(dep, ret->unit->dependencies[UNIT_PROPAGATES_RELOAD_TO], i) { r = transaction_add_job_and_dependencies(tr, JOB_RELOAD, dep, ret, false, override, false, false, ignore_order, e); if (r < 0) { - log_warning("Cannot add dependency reload job for unit %s, ignoring: %s", dep->id, bus_error(e, r)); + log_warning_unit(dep->id, + "Cannot add dependency reload job for unit %s, ignoring: %s", + dep->id, bus_error(e, r)); if (e) dbus_error_free(e); @@ -1003,7 +1061,7 @@ int transaction_add_job_and_dependencies( } } - /* JOB_VERIFY_STARTED, JOB_RELOAD require no dependency handling */ + /* JOB_VERIFY_STARTED require no dependency handling */ } return 0; @@ -1040,13 +1098,15 @@ int transaction_add_isolate_jobs(Transaction *tr, Manager *m) { 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)); + log_warning_unit(u->id, + "Cannot add isolate job for unit %s, ignoring: %s", + u->id, strerror(-r)); } return 0; } -Transaction *transaction_new(void) { +Transaction *transaction_new(bool irreversible) { Transaction *tr; tr = new0(Transaction, 1); @@ -1059,6 +1119,8 @@ Transaction *transaction_new(void) { return NULL; } + tr->irreversible = irreversible; + return tr; }