X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fmanager.c;h=92a6dff14467b9ddc81492e928a3b18915e7a948;hb=e025b4c306d4b0895786839ebbb934188edc6e61;hp=9fc854b66104216ff5eea996960f007137208b60;hpb=4466ee6a7151b30b7738b09c4c21ffa3872a5047;p=elogind.git diff --git a/src/manager.c b/src/manager.c index 9fc854b66..92a6dff14 100644 --- a/src/manager.c +++ b/src/manager.c @@ -58,6 +58,7 @@ #include "special.h" #include "bus-errors.h" #include "exit-status.h" +#include "sd-daemon.h" /* As soon as 16 units are in our GC queue, make sure to run a gc sweep */ #define GC_QUEUE_ENTRIES_MAX 16 @@ -1167,13 +1168,13 @@ static void transaction_minimize_impact(Manager *m) { continue; if (stops_running_service) - log_info("%s/%s would stop a running service.", j->unit->meta.id, job_type_to_string(j->type)); + log_debug("%s/%s would stop a running service.", j->unit->meta.id, job_type_to_string(j->type)); if (changes_existing_job) - log_info("%s/%s would change existing job.", j->unit->meta.id, job_type_to_string(j->type)); + log_debug("%s/%s would change existing job.", j->unit->meta.id, job_type_to_string(j->type)); /* Ok, let's get rid of this */ - log_info("Deleting %s/%s to minimize impact.", j->unit->meta.id, job_type_to_string(j->type)); + log_debug("Deleting %s/%s to minimize impact.", j->unit->meta.id, job_type_to_string(j->type)); transaction_delete_job(m, j, true); again = true; @@ -1187,13 +1188,27 @@ static void transaction_minimize_impact(Manager *m) { } while (again); } -static int transaction_apply(Manager *m) { +static int transaction_apply(Manager *m, JobMode mode) { Iterator i; Job *j; int r; /* Moves the transaction jobs to the set of active jobs */ + if (mode == JOB_ISOLATE) { + + /* When isolating first kill all installed jobs which + * aren't part of the new transaction */ + HASHMAP_FOREACH(j, m->jobs, i) { + assert(j->installed); + + if (hashmap_get(m->transaction_jobs, j->unit)) + continue; + + job_finish_and_invalidate(j, JOB_CANCELED); + } + } + HASHMAP_FOREACH(j, m->transaction_jobs, i) { /* Assume merged */ assert(!j->transaction_prev); @@ -1273,7 +1288,8 @@ static int transaction_activate(Manager *m, JobMode mode, DBusError *e) { for (;;) { /* Fourth step: Let's remove unneeded jobs that might * be lurking. */ - transaction_collect_garbage(m); + if (mode != JOB_ISOLATE) + transaction_collect_garbage(m); /* Fifth step: verify order makes sense and correct * cycles if necessary and possible */ @@ -1303,7 +1319,8 @@ static int transaction_activate(Manager *m, JobMode mode, DBusError *e) { /* Seventh step: an entry got dropped, let's garbage * collect its dependencies. */ - transaction_collect_garbage(m); + if (mode != JOB_ISOLATE) + transaction_collect_garbage(m); /* Let's see if the resulting transaction still has * unmergeable entries ... */ @@ -1320,7 +1337,7 @@ static int transaction_activate(Manager *m, JobMode mode, DBusError *e) { } /* Tenth step: apply changes */ - if ((r = transaction_apply(m)) < 0) { + if ((r = transaction_apply(m, mode)) < 0) { log_warning("Failed to apply transaction: %s", strerror(-r)); goto rollback; } @@ -1423,7 +1440,8 @@ static int transaction_add_job_and_dependencies( bool matters, bool override, bool conflicts, - bool ignore_deps, + bool ignore_requirements, + bool ignore_order, DBusError *e, Job **_ret) { Job *ret; @@ -1451,9 +1469,10 @@ static int transaction_add_job_and_dependencies( if (type != JOB_STOP && unit->meta.load_state == UNIT_ERROR) { dbus_set_error(e, BUS_ERROR_LOAD_FAILED, "Unit %s failed to load: %s. " - "See system logs and 'systemctl status' for details.", + "See system logs and 'systemctl status %s' for details.", unit->meta.id, - strerror(-unit->meta.load_error)); + strerror(-unit->meta.load_error), + unit->meta.id); return -EINVAL; } @@ -1471,20 +1490,20 @@ static int transaction_add_job_and_dependencies( if (!(ret = transaction_add_one_job(m, type, unit, override, &is_new))) return -ENOMEM; - ret->ignore_deps = ret->ignore_deps || ignore_deps; + ret->ignore_order = ret->ignore_order || ignore_order; /* Then, add a link to the job. */ if (!job_dependency_new(by, ret, matters, conflicts)) return -ENOMEM; - if (is_new && !ignore_deps) { + if (is_new && !ignore_requirements) { Set *following; /* If we are following some other unit, make sure we * add all dependencies of everybody following. */ if (unit_following_set(ret->unit, &following) > 0) { SET_FOREACH(dep, following, i) - if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, false, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, false, override, false, false, ignore_order, e, NULL)) < 0) { log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); if (e) @@ -1497,7 +1516,7 @@ static int transaction_add_job_and_dependencies( /* Finally, recursively add in all dependencies. */ if (type == JOB_START || type == JOB_RELOAD_OR_START) { SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRES], i) - if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) goto fail; @@ -1506,7 +1525,7 @@ static int transaction_add_job_and_dependencies( } SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_BIND_TO], i) - if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) goto fail; @@ -1516,7 +1535,7 @@ static int transaction_add_job_and_dependencies( } SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRES_OVERRIDABLE], i) - if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, !override, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, !override, override, false, false, ignore_order, e, NULL)) < 0) { log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); if (e) @@ -1524,7 +1543,7 @@ static int transaction_add_job_and_dependencies( } SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_WANTS], i) - if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, false, false, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, JOB_START, dep, ret, false, false, false, false, ignore_order, e, NULL)) < 0) { log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); if (e) @@ -1532,7 +1551,7 @@ static int transaction_add_job_and_dependencies( } SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUISITE], i) - if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, true, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) goto fail; @@ -1542,7 +1561,7 @@ static int transaction_add_job_and_dependencies( } SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUISITE_OVERRIDABLE], i) - if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, JOB_VERIFY_ACTIVE, dep, ret, !override, override, false, false, ignore_order, e, NULL)) < 0) { log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); if (e) @@ -1550,7 +1569,7 @@ static int transaction_add_job_and_dependencies( } SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_CONFLICTS], i) - if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, override, true, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, true, override, true, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) goto fail; @@ -1560,7 +1579,7 @@ static int transaction_add_job_and_dependencies( } SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_CONFLICTED_BY], i) - if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, false, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, dep, ret, false, override, false, false, ignore_order, e, NULL)) < 0) { log_warning("Cannot add dependency job for unit %s, ignoring: %s", dep->meta.id, bus_error(e, r)); if (e) @@ -1570,7 +1589,7 @@ static int transaction_add_job_and_dependencies( } else if (type == JOB_STOP || type == JOB_RESTART || type == JOB_TRY_RESTART) { SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_REQUIRED_BY], i) - if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) goto fail; @@ -1580,7 +1599,7 @@ static int transaction_add_job_and_dependencies( } SET_FOREACH(dep, ret->unit->meta.dependencies[UNIT_BOUND_BY], i) - if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, false, e, NULL)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, type, dep, ret, true, override, false, false, ignore_order, e, NULL)) < 0) { if (r != -EBADR) goto fail; @@ -1616,7 +1635,7 @@ static int transaction_add_isolate_jobs(Manager *m) { if (u->meta.id != k) continue; - if (UNIT_VTABLE(u)->no_isolate) + if (u->meta.ignore_on_isolate) continue; /* No need to stop inactive jobs */ @@ -1627,7 +1646,7 @@ static int transaction_add_isolate_jobs(Manager *m) { if (hashmap_get(m->transaction_jobs, u)) continue; - if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, u, NULL, true, false, false, false, NULL, NULL)) < 0) + if ((r = transaction_add_job_and_dependencies(m, JOB_STOP, u, NULL, true, false, false, false, false, NULL, NULL)) < 0) log_warning("Cannot add isolate job for unit %s, ignoring: %s", u->meta.id, strerror(-r)); } @@ -1655,7 +1674,9 @@ int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, bool ove log_debug("Trying to enqueue job %s/%s/%s", unit->meta.id, job_type_to_string(type), job_mode_to_string(mode)); - if ((r = transaction_add_job_and_dependencies(m, type, unit, NULL, true, override, false, mode == JOB_IGNORE_DEPENDENCIES, e, &ret)) < 0) { + if ((r = transaction_add_job_and_dependencies(m, type, unit, NULL, true, override, false, + mode == JOB_IGNORE_DEPENDENCIES || mode == JOB_IGNORE_REQUIREMENTS, + mode == JOB_IGNORE_DEPENDENCIES, e, &ret)) < 0) { transaction_abort(m); return r; } @@ -2059,8 +2080,6 @@ static int manager_process_signal_fd(Manager *m) { assert(m); for (;;) { - char *p = NULL; - if ((n = read(m->signal_watch.fd, &sfsi, sizeof(sfsi))) != sizeof(sfsi)) { if (n >= 0) @@ -2072,13 +2091,17 @@ static int manager_process_signal_fd(Manager *m) { return -errno; } - if (sfsi.ssi_pid > 0) + if (sfsi.ssi_pid > 0) { + char *p = NULL; + get_process_name(sfsi.ssi_pid, &p); - log_debug("Received SIG%s from PID %lu (%s)", - strna(signal_to_string(sfsi.ssi_signo)), - (unsigned long) sfsi.ssi_pid, strna(p)); - free(p); + log_debug("Received SIG%s from PID %lu (%s).", + strna(signal_to_string(sfsi.ssi_signo)), + (unsigned long) sfsi.ssi_pid, strna(p)); + free(p); + } else + log_debug("Received SIG%s.", strna(signal_to_string(sfsi.ssi_signo))); switch (sfsi.ssi_signo) { @@ -2238,7 +2261,7 @@ static int process_event(Manager *m, struct epoll_event *ev) { assert(m); assert(ev); - assert(w = ev->data.ptr); + assert_se(w = ev->data.ptr); if (w->type == WATCH_INVALID) return 0; @@ -2633,6 +2656,11 @@ int manager_serialize(Manager *m, FILE *f, FDSet *fds) { assert(f); assert(fds); + m->n_serializing ++; + + fprintf(f, "current-job-id=%i\n", m->current_job_id); + fprintf(f, "taint-usr=%s\n", yes_no(m->taint_usr)); + dual_timestamp_serialize(f, "initrd-timestamp", &m->initrd_timestamp); dual_timestamp_serialize(f, "startup-timestamp", &m->startup_timestamp); dual_timestamp_serialize(f, "finish-timestamp", &m->finish_timestamp); @@ -2650,13 +2678,22 @@ int manager_serialize(Manager *m, FILE *f, FDSet *fds) { fputs(u->meta.id, f); fputc('\n', f); - if ((r = unit_serialize(u, f, fds)) < 0) + if ((r = unit_serialize(u, f, fds)) < 0) { + m->n_serializing --; return r; + } } + assert(m->n_serializing > 0); + m->n_serializing --; + if (ferror(f)) return -EIO; + r = bus_fdset_add_all(m, fds); + if (r < 0) + return r; + return 0; } @@ -2671,7 +2708,7 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { m->n_deserializing ++; for (;;) { - char line[1024], *l; + char line[LINE_MAX], *l; if (!fgets(line, sizeof(line), f)) { if (feof(f)) @@ -2688,7 +2725,21 @@ int manager_deserialize(Manager *m, FILE *f, FDSet *fds) { if (l[0] == 0) break; - if (startswith(l, "initrd-timestamp=")) + if (startswith(l, "current-job-id=")) { + uint32_t id; + + if (safe_atou32(l+15, &id) < 0) + log_debug("Failed to parse current job id value %s", l+15); + else + m->current_job_id = MAX(m->current_job_id, id); + } else if (startswith(l, "taint-usr=")) { + int b; + + if ((b = parse_boolean(l+10)) < 0) + log_debug("Failed to parse taint /usr flag %s", l+10); + else + m->taint_usr = m->taint_usr || b; + } else if (startswith(l, "initrd-timestamp=")) dual_timestamp_deserialize(l+17, &m->initrd_timestamp); else if (startswith(l, "startup-timestamp=")) dual_timestamp_deserialize(l+18, &m->startup_timestamp); @@ -2743,15 +2794,21 @@ int manager_reload(Manager *m) { if ((r = manager_open_serialization(m, &f)) < 0) return r; + m->n_serializing ++; + if (!(fds = fdset_new())) { + m->n_serializing --; r = -ENOMEM; goto finish; } - if ((r = manager_serialize(m, f, fds)) < 0) + if ((r = manager_serialize(m, f, fds)) < 0) { + m->n_serializing --; goto finish; + } if (fseeko(f, 0, SEEK_SET) < 0) { + m->n_serializing --; r = -errno; goto finish; } @@ -2760,6 +2817,9 @@ int manager_reload(Manager *m) { manager_clear_jobs_and_units(m); manager_undo_generators(m); + assert(m->n_serializing > 0); + m->n_serializing --; + /* Find new unit paths */ lookup_paths_free(&m->lookup_paths); if ((q = lookup_paths_init(&m->lookup_paths, m->running_as)) < 0) @@ -2787,7 +2847,7 @@ int manager_reload(Manager *m) { r = q; assert(m->n_deserializing > 0); - m->n_deserializing ++; + m->n_deserializing--; finish: if (f) @@ -2840,6 +2900,7 @@ bool manager_unit_pending_inactive(Manager *m, const char *name) { void manager_check_finished(Manager *m) { char userspace[FORMAT_TIMESPAN_MAX], initrd[FORMAT_TIMESPAN_MAX], kernel[FORMAT_TIMESPAN_MAX], sum[FORMAT_TIMESPAN_MAX]; + usec_t kernel_usec = 0, initrd_usec = 0, userspace_usec = 0, total_usec = 0; assert(m); @@ -2853,29 +2914,41 @@ void manager_check_finished(Manager *m) { if (m->running_as == MANAGER_SYSTEM && detect_container(NULL) <= 0) { + userspace_usec = m->finish_timestamp.monotonic - m->startup_timestamp.monotonic; + total_usec = m->finish_timestamp.monotonic; + if (dual_timestamp_is_set(&m->initrd_timestamp)) { + + kernel_usec = m->initrd_timestamp.monotonic; + initrd_usec = m->startup_timestamp.monotonic - m->initrd_timestamp.monotonic; + log_info("Startup finished in %s (kernel) + %s (initrd) + %s (userspace) = %s.", - format_timespan(kernel, sizeof(kernel), - m->initrd_timestamp.monotonic), - format_timespan(initrd, sizeof(initrd), - m->startup_timestamp.monotonic - m->initrd_timestamp.monotonic), - format_timespan(userspace, sizeof(userspace), - m->finish_timestamp.monotonic - m->startup_timestamp.monotonic), - format_timespan(sum, sizeof(sum), - m->finish_timestamp.monotonic)); - } else + format_timespan(kernel, sizeof(kernel), kernel_usec), + format_timespan(initrd, sizeof(initrd), initrd_usec), + format_timespan(userspace, sizeof(userspace), userspace_usec), + format_timespan(sum, sizeof(sum), total_usec)); + } else { + kernel_usec = m->startup_timestamp.monotonic; + initrd_usec = 0; + log_info("Startup finished in %s (kernel) + %s (userspace) = %s.", - format_timespan(kernel, sizeof(kernel), - m->startup_timestamp.monotonic), - format_timespan(userspace, sizeof(userspace), - m->finish_timestamp.monotonic - m->startup_timestamp.monotonic), - format_timespan(sum, sizeof(sum), - m->finish_timestamp.monotonic)); - } else + format_timespan(kernel, sizeof(kernel), kernel_usec), + format_timespan(userspace, sizeof(userspace), userspace_usec), + format_timespan(sum, sizeof(sum), total_usec)); + } + } else { + userspace_usec = initrd_usec = kernel_usec = 0; + total_usec = m->finish_timestamp.monotonic - m->startup_timestamp.monotonic; + log_debug("Startup finished in %s.", - format_timespan(userspace, sizeof(userspace), - m->finish_timestamp.monotonic - m->startup_timestamp.monotonic)); + format_timespan(sum, sizeof(sum), total_usec)); + } + bus_broadcast_finished(m, kernel_usec, initrd_usec, userspace_usec, total_usec); + + sd_notifyf(false, + "READY=1\nSTATUS=Startup finished in %s.", + format_timespan(sum, sizeof(sum), total_usec)); } void manager_run_generators(Manager *m) { @@ -2896,13 +2969,22 @@ void manager_run_generators(Manager *m) { } if (!m->generator_unit_path) { - char *p; - char system_path[] = "/run/systemd/generator-XXXXXX", - user_path[] = "/tmp/systemd-generator-XXXXXX"; + const char *p; + char user_path[] = "/tmp/systemd-generator-XXXXXX"; - if (!(p = mkdtemp(m->running_as == MANAGER_SYSTEM ? system_path : user_path))) { - log_error("Failed to generate generator directory: %m"); - goto finish; + if (m->running_as == MANAGER_SYSTEM && getpid() == 1) { + p = "/run/systemd/generator"; + + if (mkdir_p(p, 0755) < 0) { + log_error("Failed to create generator directory: %m"); + goto finish; + } + + } else { + if (!(p = mkdtemp(user_path))) { + log_error("Failed to create generator directory: %m"); + goto finish; + } } if (!(m->generator_unit_path = strdup(p))) {