diff options
Diffstat (limited to 'src/core/job.c')
| -rw-r--r-- | src/core/job.c | 162 |
1 files changed, 155 insertions, 7 deletions
diff --git a/src/core/job.c b/src/core/job.c index 07d4fc3cc0..326460d525 100644 --- a/src/core/job.c +++ b/src/core/job.c @@ -47,22 +47,36 @@ JobBusClient* job_bus_client_new(DBusConnection *connection, const char *name) { return cl; } -Job* job_new(Unit *unit, JobType type) { +Job* job_new_raw(Unit *unit) { Job *j; - assert(type < _JOB_TYPE_MAX); + /* used for deserialization */ + assert(unit); - if (!(j = new0(Job, 1))) + j = new0(Job, 1); + if (!j) return NULL; j->manager = unit->manager; - j->id = j->manager->current_job_id++; - j->type = type; j->unit = unit; - j->timer_watch.type = WATCH_INVALID; + return j; +} + +Job* job_new(Unit *unit, JobType type) { + Job *j; + + assert(type < _JOB_TYPE_MAX); + + j = job_new_raw(unit); + if (!j) + return NULL; + + j->id = j->manager->current_job_id++; + j->type = type; + /* We don't link it here, that's what job_dependency() is for */ return j; @@ -105,7 +119,9 @@ void job_uninstall(Job *j) { assert(j->unit->job == j); /* Detach from next 'bigger' objects */ - bus_job_send_removed_signal(j); + /* daemon-reload should be transparent to job observers */ + if (j->manager->n_reloading <= 0) + bus_job_send_removed_signal(j); j->unit->job = NULL; unit_add_to_gc_queue(j->unit); @@ -180,6 +196,18 @@ Job* job_install(Job *j) { return j; } +void job_install_deserialized(Job *j) { + assert(!j->installed); + + if (j->unit->job) { + log_debug("Unit %s already has a job installed. Not installing deserialized job.", j->unit->id); + return; + } + j->unit->job = j; + j->installed = true; + log_debug("Reinstalled deserialized job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id); +} + JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) { JobDependency *l; @@ -733,6 +761,126 @@ void job_timer_event(Job *j, uint64_t n_elapsed, Watch *w) { job_finish_and_invalidate(j, JOB_TIMEOUT); } +int job_serialize(Job *j, FILE *f, FDSet *fds) { + fprintf(f, "job-id=%u\n", j->id); + fprintf(f, "job-type=%s\n", job_type_to_string(j->type)); + fprintf(f, "job-state=%s\n", job_state_to_string(j->state)); + fprintf(f, "job-override=%s\n", yes_no(j->override)); + fprintf(f, "job-sent-dbus-new-signal=%s\n", yes_no(j->sent_dbus_new_signal)); + fprintf(f, "job-ignore-order=%s\n", yes_no(j->ignore_order)); + /* Cannot save bus clients. Just note the fact that we're losing + * them. job_send_message() will fallback to broadcasting. */ + fprintf(f, "job-forgot-bus-clients=%s\n", + yes_no(j->forgot_bus_clients || j->bus_client_list)); + if (j->timer_watch.type == WATCH_JOB_TIMER) { + int copy = fdset_put_dup(fds, j->timer_watch.fd); + if (copy < 0) + return copy; + fprintf(f, "job-timer-watch-fd=%d\n", copy); + } + + /* End marker */ + fputc('\n', f); + return 0; +} + +int job_deserialize(Job *j, FILE *f, FDSet *fds) { + for (;;) { + char line[LINE_MAX], *l, *v; + size_t k; + + if (!fgets(line, sizeof(line), f)) { + if (feof(f)) + return 0; + return -errno; + } + + char_array_0(line); + l = strstrip(line); + + /* End marker */ + if (l[0] == 0) + return 0; + + k = strcspn(l, "="); + + if (l[k] == '=') { + l[k] = 0; + v = l+k+1; + } else + v = l+k; + + if (streq(l, "job-id")) { + if (safe_atou32(v, &j->id) < 0) + log_debug("Failed to parse job id value %s", v); + } else if (streq(l, "job-type")) { + JobType t = job_type_from_string(v); + if (t < 0) + log_debug("Failed to parse job type %s", v); + else + j->type = t; + } else if (streq(l, "job-state")) { + JobState s = job_state_from_string(v); + if (s < 0) + log_debug("Failed to parse job state %s", v); + else + j->state = s; + } else if (streq(l, "job-override")) { + int b = parse_boolean(v); + if (b < 0) + log_debug("Failed to parse job override flag %s", v); + else + j->override = j->override || b; + } else if (streq(l, "job-sent-dbus-new-signal")) { + int b = parse_boolean(v); + if (b < 0) + log_debug("Failed to parse job sent_dbus_new_signal flag %s", v); + else + j->sent_dbus_new_signal = j->sent_dbus_new_signal || b; + } else if (streq(l, "job-ignore-order")) { + int b = parse_boolean(v); + if (b < 0) + log_debug("Failed to parse job ignore_order flag %s", v); + else + j->ignore_order = j->ignore_order || b; + } else if (streq(l, "job-forgot-bus-clients")) { + int b = parse_boolean(v); + if (b < 0) + log_debug("Failed to parse job forgot_bus_clients flag %s", v); + else + j->forgot_bus_clients = j->forgot_bus_clients || b; + } else if (streq(l, "job-timer-watch-fd")) { + int fd; + if (safe_atoi(v, &fd) < 0 || fd < 0 || !fdset_contains(fds, fd)) + log_debug("Failed to parse job-timer-watch-fd value %s", v); + else { + if (j->timer_watch.type == WATCH_JOB_TIMER) + close_nointr_nofail(j->timer_watch.fd); + + j->timer_watch.type = WATCH_JOB_TIMER; + j->timer_watch.fd = fdset_remove(fds, fd); + j->timer_watch.data.job = j; + } + } + } +} + +int job_coldplug(Job *j) { + struct epoll_event ev; + + if (j->timer_watch.type != WATCH_JOB_TIMER) + return 0; + + zero(ev); + ev.data.ptr = &j->timer_watch; + ev.events = EPOLLIN; + + if (epoll_ctl(j->manager->epoll_fd, EPOLL_CTL_ADD, j->timer_watch.fd, &ev) < 0) + return -errno; + + return 0; +} + static const char* const job_state_table[_JOB_STATE_MAX] = { [JOB_WAITING] = "waiting", [JOB_RUNNING] = "running" |