X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fcore%2Fjob.c;h=90de550016ff22cbf34600e66f597c72467c33b2;hp=326460d525363e72b60375c456caba30bce1c1bb;hb=37d3ab1b7e114f0fb6dfb2e7273569b42794b76a;hpb=39a18c60d07319ebfcfd476556729c2cadd616d6 diff --git a/src/core/job.c b/src/core/job.c index 326460d52..90de55001 100644 --- a/src/core/job.c +++ b/src/core/job.c @@ -24,6 +24,8 @@ #include #include +#include "systemd/sd-id128.h" +#include "systemd/sd-messages.h" #include "set.h" #include "unit.h" #include "macro.h" @@ -32,6 +34,9 @@ #include "load-dropin.h" #include "log.h" #include "dbus-job.h" +#include "special.h" +#include "sync.h" +#include "virt.h" JobBusClient* job_bus_client_new(DBusConnection *connection, const char *name) { JobBusClient *cl; @@ -60,6 +65,7 @@ Job* job_new_raw(Unit *unit) { j->manager = unit->manager; j->unit = unit; + j->type = _JOB_TYPE_INVALID; j->timer_watch.type = WATCH_INVALID; return j; @@ -115,15 +121,21 @@ void job_free(Job *j) { } void job_uninstall(Job *j) { + Job **pj; + assert(j->installed); - assert(j->unit->job == j); + + pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; + assert(*pj == j); + /* Detach from next 'bigger' objects */ /* daemon-reload should be transparent to job observers */ if (j->manager->n_reloading <= 0) bus_job_send_removed_signal(j); - j->unit->job = NULL; + *pj = NULL; + unit_add_to_gc_queue(j->unit); hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id)); @@ -144,35 +156,45 @@ static bool job_type_allows_late_merge(JobType t) { * patched into JOB_START after stopping the unit. So if we see a * JOB_RESTART running, it means the unit hasn't stopped yet and at * this time the merge is still allowed. */ - return !(t == JOB_RELOAD || t == JOB_RELOAD_OR_START); + return t != JOB_RELOAD; } static void job_merge_into_installed(Job *j, Job *other) { assert(j->installed); assert(j->unit == other->unit); - j->type = job_type_lookup_merge(j->type, other->type); - assert(j->type >= 0); + if (j->type != JOB_NOP) + job_type_merge_and_collapse(&j->type, other->type, j->unit); + else + assert(other->type == JOB_NOP); j->override = j->override || other->override; + j->irreversible = j->irreversible || other->irreversible; + j->ignore_order = j->ignore_order || other->ignore_order; } Job* job_install(Job *j) { - Job *uj = j->unit->job; + Job **pj; + Job *uj; assert(!j->installed); + assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); + + pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; + uj = *pj; if (uj) { - if (job_type_is_conflicting(uj->type, j->type)) - job_finish_and_invalidate(uj, JOB_CANCELED); + if (j->type != JOB_NOP && job_type_is_conflicting(uj->type, j->type)) + job_finish_and_invalidate(uj, JOB_CANCELED, false); else { /* not conflicting, i.e. mergeable */ - if (uj->state == JOB_WAITING || + if (j->type == JOB_NOP || uj->state == JOB_WAITING || (job_type_allows_late_merge(j->type) && job_type_is_superset(uj->type, j->type))) { job_merge_into_installed(uj, j); - log_debug("Merged into installed job %s/%s as %u", - uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); + log_debug_unit(uj->unit->id, + "Merged into installed job %s/%s as %u", + uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); return uj; } else { /* already running and not safe to merge into */ @@ -180,32 +202,50 @@ Job* job_install(Job *j) { /* XXX It should be safer to queue j to run after uj finishes, but it is * not currently possible to have more than one installed job per unit. */ job_merge_into_installed(uj, j); - log_debug("Merged into running job, re-running: %s/%s as %u", - uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); + log_debug_unit(uj->unit->id, + "Merged into running job, re-running: %s/%s as %u", + uj->unit->id, job_type_to_string(uj->type), (unsigned) uj->id); uj->state = JOB_WAITING; + uj->manager->n_running_jobs--; return uj; } } } /* Install the job */ - j->unit->job = j; + *pj = j; j->installed = true; j->manager->n_installed_jobs ++; - log_debug("Installed new job %s/%s as %u", j->unit->id, job_type_to_string(j->type), (unsigned) j->id); + log_debug_unit(j->unit->id, + "Installed new job %s/%s as %u", + j->unit->id, job_type_to_string(j->type), (unsigned) j->id); return j; } -void job_install_deserialized(Job *j) { +int job_install_deserialized(Job *j) { + Job **pj; + assert(!j->installed); - if (j->unit->job) { - log_debug("Unit %s already has a job installed. Not installing deserialized job.", j->unit->id); - return; + if (j->type < 0 || j->type >= _JOB_TYPE_MAX_IN_TRANSACTION) { + log_debug("Invalid job type %s in deserialization.", strna(job_type_to_string(j->type))); + return -EINVAL; } - j->unit->job = j; + + pj = (j->type == JOB_NOP) ? &j->unit->nop_job : &j->unit->job; + + if (*pj) { + log_debug_unit(j->unit->id, + "Unit %s already has a job installed. Not installing deserialized job.", + j->unit->id); + return -EEXIST; + } + *pj = 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); + log_debug_unit(j->unit->id, + "Reinstalled deserialized job %s/%s as %u", + j->unit->id, job_type_to_string(j->type), (unsigned) j->id); + return 0; } JobDependency* job_dependency_new(Job *subject, Job *object, bool matters, bool conflicts) { @@ -256,11 +296,13 @@ void job_dump(Job *j, FILE*f, const char *prefix) { "%s-> Job %u:\n" "%s\tAction: %s -> %s\n" "%s\tState: %s\n" - "%s\tForced: %s\n", + "%s\tForced: %s\n" + "%s\tIrreversible: %s\n", prefix, j->id, prefix, j->unit->id, job_type_to_string(j->type), prefix, job_state_to_string(j->state), - prefix, yes_no(j->override)); + prefix, yes_no(j->override), + prefix, yes_no(j->irreversible)); } /* @@ -268,6 +310,10 @@ void job_dump(Job *j, FILE*f, const char *prefix) { * its lower triangle to avoid duplication. We don't store the main diagonal, * because A merged with A is simply A. * + * If the resulting type is collapsed immediately afterwards (to get rid of + * the JOB_RELOAD_OR_START, which lies outside the lookup function's domain), + * the following properties hold: + * * Merging is associative! A merged with B merged with C is the same as * A merged with C merged with B. * @@ -278,21 +324,19 @@ void job_dump(Job *j, FILE*f, const char *prefix) { * be merged with C either. */ static const JobType job_merging_table[] = { -/* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD JOB_RELOAD_OR_START JOB_RESTART JOB_TRY_RESTART */ -/************************************************************************************************************************************/ +/* What \ With * JOB_START JOB_VERIFY_ACTIVE JOB_STOP JOB_RELOAD */ +/*********************************************************************************/ /*JOB_START */ /*JOB_VERIFY_ACTIVE */ JOB_START, /*JOB_STOP */ -1, -1, /*JOB_RELOAD */ JOB_RELOAD_OR_START, JOB_RELOAD, -1, -/*JOB_RELOAD_OR_START*/ JOB_RELOAD_OR_START, JOB_RELOAD_OR_START, -1, JOB_RELOAD_OR_START, -/*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART, JOB_RESTART, -/*JOB_TRY_RESTART */ JOB_RESTART, JOB_TRY_RESTART, -1, JOB_TRY_RESTART, JOB_RESTART, JOB_RESTART, +/*JOB_RESTART */ JOB_RESTART, JOB_RESTART, -1, JOB_RESTART, }; JobType job_type_lookup_merge(JobType a, JobType b) { - assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX * (_JOB_TYPE_MAX - 1) / 2); - assert(a >= 0 && a < _JOB_TYPE_MAX); - assert(b >= 0 && b < _JOB_TYPE_MAX); + assert_cc(ELEMENTSOF(job_merging_table) == _JOB_TYPE_MAX_MERGING * (_JOB_TYPE_MAX_MERGING - 1) / 2); + assert(a >= 0 && a < _JOB_TYPE_MAX_MERGING); + assert(b >= 0 && b < _JOB_TYPE_MAX_MERGING); if (a == b) return a; @@ -328,24 +372,50 @@ bool job_type_is_redundant(JobType a, UnitActiveState b) { return b == UNIT_RELOADING; - case JOB_RELOAD_OR_START: - return - b == UNIT_ACTIVATING || - b == UNIT_RELOADING; - case JOB_RESTART: return b == UNIT_ACTIVATING; + default: + assert_not_reached("Invalid job type"); + } +} + +void job_type_collapse(JobType *t, Unit *u) { + UnitActiveState s; + + switch (*t) { + case JOB_TRY_RESTART: - return - b == UNIT_ACTIVATING; + s = unit_active_state(u); + if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) + *t = JOB_NOP; + else + *t = JOB_RESTART; + break; + + case JOB_RELOAD_OR_START: + s = unit_active_state(u); + if (UNIT_IS_INACTIVE_OR_DEACTIVATING(s)) + *t = JOB_START; + else + *t = JOB_RELOAD; + break; default: - assert_not_reached("Invalid job type"); + ; } } +int job_type_merge_and_collapse(JobType *a, JobType b, Unit *u) { + JobType t = job_type_lookup_merge(*a, b); + if (t < 0) + return -EEXIST; + *a = t; + job_type_collapse(a, u); + return 0; +} + bool job_is_runnable(Job *j) { Iterator i; Unit *other; @@ -362,10 +432,12 @@ bool job_is_runnable(Job *j) { if (j->ignore_order) return true; + if (j->type == JOB_NOP) + return true; + if (j->type == JOB_START || j->type == JOB_VERIFY_ACTIVE || - j->type == JOB_RELOAD || - j->type == JOB_RELOAD_OR_START) { + j->type == JOB_RELOAD) { /* Immediate result is that the job is or might be * started. In this case lets wait for the @@ -383,8 +455,7 @@ bool job_is_runnable(Job *j) { SET_FOREACH(other, j->unit->dependencies[UNIT_BEFORE], i) if (other->job && (other->job->type == JOB_STOP || - other->job->type == JOB_RESTART || - other->job->type == JOB_TRY_RESTART)) + other->job->type == JOB_RESTART)) return false; /* This means that for a service a and a service b where b @@ -402,9 +473,10 @@ bool job_is_runnable(Job *j) { } static void job_change_type(Job *j, JobType newtype) { - log_debug("Converting job %s/%s -> %s/%s", - j->unit->id, job_type_to_string(j->type), - j->unit->id, job_type_to_string(newtype)); + log_debug_unit(j->unit->id, + "Converting job %s/%s -> %s/%s", + j->unit->id, job_type_to_string(j->type), + j->unit->id, job_type_to_string(newtype)); j->type = newtype; } @@ -412,15 +484,15 @@ static void job_change_type(Job *j, JobType newtype) { int job_run_and_invalidate(Job *j) { int r; uint32_t id; - Manager *m; + Manager *m = j->manager; assert(j); assert(j->installed); + assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); + assert(j->in_run_queue); - if (j->in_run_queue) { - LIST_REMOVE(Job, run_queue, j->manager->run_queue, j); - j->in_run_queue = false; - } + LIST_REMOVE(Job, run_queue, j->manager->run_queue, j); + j->in_run_queue = false; if (j->state != JOB_WAITING) return 0; @@ -429,6 +501,7 @@ int job_run_and_invalidate(Job *j) { return -EAGAIN; j->state = JOB_RUNNING; + m->n_running_jobs++; job_add_to_dbus_queue(j); /* While we execute this operation the job might go away (for @@ -437,19 +510,9 @@ int job_run_and_invalidate(Job *j) { * store the id here, so that we can verify the job is still * valid. */ id = j->id; - m = j->manager; switch (j->type) { - case JOB_RELOAD_OR_START: - if (unit_active_state(j->unit) == UNIT_ACTIVE) { - job_change_type(j, JOB_RELOAD); - r = unit_reload(j->unit); - break; - } - job_change_type(j, JOB_START); - /* fall through */ - case JOB_START: r = unit_start(j->unit); @@ -469,14 +532,6 @@ int job_run_and_invalidate(Job *j) { break; } - case JOB_TRY_RESTART: - if (UNIT_IS_INACTIVE_OR_DEACTIVATING(unit_active_state(j->unit))) { - r = -ENOEXEC; - break; - } - job_change_type(j, JOB_RESTART); - /* fall through */ - case JOB_STOP: case JOB_RESTART: r = unit_stop(j->unit); @@ -490,167 +545,300 @@ int job_run_and_invalidate(Job *j) { r = unit_reload(j->unit); break; + case JOB_NOP: + r = -EALREADY; + break; + default: assert_not_reached("Unknown job type"); } - if ((j = manager_get_job(m, id))) { + j = manager_get_job(m, id); + if (j) { if (r == -EALREADY) - r = job_finish_and_invalidate(j, JOB_DONE); + r = job_finish_and_invalidate(j, JOB_DONE, true); else if (r == -ENOEXEC) - r = job_finish_and_invalidate(j, JOB_SKIPPED); - else if (r == -EAGAIN) + r = job_finish_and_invalidate(j, JOB_SKIPPED, true); + else if (r == -EAGAIN) { j->state = JOB_WAITING; - else if (r < 0) - r = job_finish_and_invalidate(j, JOB_FAILED); + m->n_running_jobs--; + } else if (r < 0) + r = job_finish_and_invalidate(j, JOB_FAILED, true); } return r; } +static const char *job_get_status_message_format(Unit *u, JobType t, JobResult result) { + const UnitStatusMessageFormats *format_table; + + assert(u); + assert(t >= 0); + assert(t < _JOB_TYPE_MAX); + + format_table = &UNIT_VTABLE(u)->status_message_formats; + if (!format_table) + return NULL; + + if (t == JOB_START) + return format_table->finished_start_job[result]; + else if (t == JOB_STOP || t == JOB_RESTART) + return format_table->finished_stop_job[result]; + + return NULL; +} + +static const char *job_get_status_message_format_try_harder(Unit *u, JobType t, JobResult result) { + const char *format; + + assert(u); + assert(t >= 0); + assert(t < _JOB_TYPE_MAX); + + format = job_get_status_message_format(u, t, result); + if (format) + return format; + + /* Return generic strings */ + if (t == JOB_START) { + if (result == JOB_DONE) + return "Started %s."; + else if (result == JOB_FAILED) + return "Failed to start %s."; + else if (result == JOB_DEPENDENCY) + return "Dependency failed for %s."; + else if (result == JOB_TIMEOUT) + return "Timed out starting %s."; + } else if (t == JOB_STOP || t == JOB_RESTART) { + if (result == JOB_DONE) + return "Stopped %s."; + else if (result == JOB_FAILED) + return "Stopped (with error) %s."; + else if (result == JOB_TIMEOUT) + return "Timed out stoppping %s."; + } else if (t == JOB_RELOAD) { + if (result == JOB_DONE) + return "Reloaded %s."; + else if (result == JOB_FAILED) + return "Reload failed for %s."; + else if (result == JOB_TIMEOUT) + return "Timed out reloading %s."; + } + + return NULL; +} + static void job_print_status_message(Unit *u, JobType t, JobResult result) { + const char *format; + assert(u); + assert(t >= 0); + assert(t < _JOB_TYPE_MAX); if (t == JOB_START) { + format = job_get_status_message_format(u, t, result); + if (!format) + return; switch (result) { case JOB_DONE: if (u->condition_result) - unit_status_printf(u, ANSI_HIGHLIGHT_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, "Started %s.", unit_description(u)); + unit_status_printf(u, ANSI_HIGHLIGHT_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format); break; case JOB_FAILED: - unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, "Failed to start %s.", unit_description(u)); - unit_status_printf(u, NULL, "See 'systemctl status %s' for details.", u->id); + unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON "FAILED" ANSI_HIGHLIGHT_OFF, format); + manager_status_printf(u->manager, false, NULL, "See 'systemctl status %s' for details.", u->id); break; case JOB_DEPENDENCY: - unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " ABORT" ANSI_HIGHLIGHT_OFF, "Dependency failed. Aborted start of %s.", unit_description(u)); + unit_status_printf(u, ANSI_HIGHLIGHT_YELLOW_ON "DEPEND" ANSI_HIGHLIGHT_OFF, format); break; case JOB_TIMEOUT: - unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, "Timed out starting %s.", unit_description(u)); + unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format); break; default: ; } - } else if (t == JOB_STOP) { + } else if (t == JOB_STOP || t == JOB_RESTART) { + + format = job_get_status_message_format(u, t, result); + if (!format) + return; switch (result) { case JOB_TIMEOUT: - unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, "Timed out stopping %s.", unit_description(u)); + unit_status_printf(u, ANSI_HIGHLIGHT_RED_ON " TIME " ANSI_HIGHLIGHT_OFF, format); break; case JOB_DONE: case JOB_FAILED: - unit_status_printf(u, ANSI_HIGHLIGHT_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, "Stopped %s.", unit_description(u)); + unit_status_printf(u, ANSI_HIGHLIGHT_GREEN_ON " OK " ANSI_HIGHLIGHT_OFF, format); break; default: ; } + + } else if (t == JOB_VERIFY_ACTIVE) { + + /* When verify-active detects the unit is inactive, report it. + * Most likely a DEPEND warning from a requisiting unit will + * occur next and it's nice to see what was requisited. */ + if (result == JOB_SKIPPED) + unit_status_printf(u, ANSI_HIGHLIGHT_ON " INFO " ANSI_HIGHLIGHT_OFF, "%s is not active."); } } -int job_finish_and_invalidate(Job *j, JobResult result) { +#pragma GCC diagnostic push +#pragma GCC diagnostic ignored "-Wformat-nonliteral" +static void job_log_status_message(Unit *u, JobType t, JobResult result) { + const char *format; + char buf[LINE_MAX]; + + assert(u); + assert(t >= 0); + assert(t < _JOB_TYPE_MAX); + + /* Skip this if it goes to the console. since we already print + * to the console anyway... */ + + if (log_on_console()) + return; + + format = job_get_status_message_format_try_harder(u, t, result); + if (!format) + return; + + snprintf(buf, sizeof(buf), format, unit_description(u)); + char_array_0(buf); + + if (t == JOB_START) { + sd_id128_t mid; + + mid = result == JOB_DONE ? SD_MESSAGE_UNIT_STARTED : SD_MESSAGE_UNIT_FAILED; + log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, + u->id, + MESSAGE_ID(mid), + "RESULT=%s", job_result_to_string(result), + "MESSAGE=%s", buf, + NULL); + + } else if (t == JOB_STOP) + log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, + u->id, + MESSAGE_ID(SD_MESSAGE_UNIT_STOPPED), + "RESULT=%s", job_result_to_string(result), + "MESSAGE=%s", buf, + NULL); + + else if (t == JOB_RELOAD) + log_struct_unit(result == JOB_DONE ? LOG_INFO : LOG_ERR, + u->id, + MESSAGE_ID(SD_MESSAGE_UNIT_RELOADED), + "RESULT=%s", job_result_to_string(result), + "MESSAGE=%s", buf, + NULL); +} +#pragma GCC diagnostic pop + +int job_finish_and_invalidate(Job *j, JobResult result, bool recursive) { Unit *u; Unit *other; JobType t; Iterator i; - bool recursed = false; assert(j); assert(j->installed); + assert(j->type < _JOB_TYPE_MAX_IN_TRANSACTION); + + u = j->unit; + t = j->type; + + j->result = result; + + if (j->state == JOB_RUNNING) + j->manager->n_running_jobs--; + + log_debug_unit(u->id, "Job %s/%s finished, result=%s", + u->id, job_type_to_string(t), job_result_to_string(result)); + + job_print_status_message(u, t, result); + job_log_status_message(u, t, result); job_add_to_dbus_queue(j); /* Patch restart jobs so that they become normal start jobs */ - if (result == JOB_DONE && j->type == JOB_RESTART) { + if (result == JOB_DONE && t == JOB_RESTART) { job_change_type(j, JOB_START); j->state = JOB_WAITING; job_add_to_run_queue(j); - u = j->unit; goto finish; } - j->result = result; - - log_debug("Job %s/%s finished, result=%s", j->unit->id, job_type_to_string(j->type), job_result_to_string(result)); - if (result == JOB_FAILED) j->manager->n_failed_jobs ++; - u = j->unit; - t = j->type; job_uninstall(j); job_free(j); - job_print_status_message(u, t, result); - /* Fail depending jobs on failure */ - if (result != JOB_DONE) { + if (result != JOB_DONE && recursive) { if (t == JOB_START || - t == JOB_VERIFY_ACTIVE || - t == JOB_RELOAD_OR_START) { + t == JOB_VERIFY_ACTIVE) { SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY], i) if (other->job && (other->job->type == JOB_START || - other->job->type == JOB_VERIFY_ACTIVE || - other->job->type == JOB_RELOAD_OR_START)) { - job_finish_and_invalidate(other->job, JOB_DEPENDENCY); - recursed = true; - } + other->job->type == JOB_VERIFY_ACTIVE)) + job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); SET_FOREACH(other, u->dependencies[UNIT_BOUND_BY], i) if (other->job && (other->job->type == JOB_START || - other->job->type == JOB_VERIFY_ACTIVE || - other->job->type == JOB_RELOAD_OR_START)) { - job_finish_and_invalidate(other->job, JOB_DEPENDENCY); - recursed = true; - } + other->job->type == JOB_VERIFY_ACTIVE)) + job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); SET_FOREACH(other, u->dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i) if (other->job && !other->job->override && (other->job->type == JOB_START || - other->job->type == JOB_VERIFY_ACTIVE || - other->job->type == JOB_RELOAD_OR_START)) { - job_finish_and_invalidate(other->job, JOB_DEPENDENCY); - recursed = true; - } + other->job->type == JOB_VERIFY_ACTIVE)) + job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); } else if (t == JOB_STOP) { SET_FOREACH(other, u->dependencies[UNIT_CONFLICTED_BY], i) if (other->job && (other->job->type == JOB_START || - other->job->type == JOB_VERIFY_ACTIVE || - other->job->type == JOB_RELOAD_OR_START)) { - job_finish_and_invalidate(other->job, JOB_DEPENDENCY); - recursed = true; - } + other->job->type == JOB_VERIFY_ACTIVE)) + job_finish_and_invalidate(other->job, JOB_DEPENDENCY, true); } } /* Trigger OnFailure dependencies that are not generated by - * the unit itself. We don't tread JOB_CANCELED as failure in + * the unit itself. We don't treat JOB_CANCELED as failure in * this context. And JOB_FAILURE is already handled by the * unit itself. */ if (result == JOB_TIMEOUT || result == JOB_DEPENDENCY) { - log_notice("Job %s/%s failed with result '%s'.", + log_struct_unit(LOG_NOTICE, + u->id, + "JOB_TYPE=%s", job_type_to_string(t), + "JOB_RESULT=%s", job_result_to_string(result), + "Job %s/%s failed with result '%s'.", u->id, job_type_to_string(t), - job_result_to_string(result)); + job_result_to_string(result), + NULL); unit_trigger_on_failure(u); } @@ -666,7 +854,7 @@ finish: manager_check_finished(u->manager); - return recursed; + return 0; } int job_start_timer(Job *j) { @@ -757,8 +945,9 @@ void job_timer_event(Job *j, uint64_t n_elapsed, Watch *w) { assert(j); assert(w == &j->timer_watch); - log_warning("Job %s/%s timed out.", j->unit->id, job_type_to_string(j->type)); - job_finish_and_invalidate(j, JOB_TIMEOUT); + log_warning_unit(j->unit->id, "Job %s/%s timed out.", + j->unit->id, job_type_to_string(j->type)); + job_finish_and_invalidate(j, JOB_TIMEOUT, true); } int job_serialize(Job *j, FILE *f, FDSet *fds) { @@ -766,6 +955,7 @@ int job_serialize(Job *j, FILE *f, FDSet *fds) { 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-irreversible=%s\n", yes_no(j->irreversible)); 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 @@ -817,6 +1007,8 @@ int job_deserialize(Job *j, FILE *f, FDSet *fds) { JobType t = job_type_from_string(v); if (t < 0) log_debug("Failed to parse job type %s", v); + else if (t >= _JOB_TYPE_MAX_IN_TRANSACTION) + log_debug("Cannot deserialize job of type %s", v); else j->type = t; } else if (streq(l, "job-state")) { @@ -831,6 +1023,12 @@ int job_deserialize(Job *j, FILE *f, FDSet *fds) { log_debug("Failed to parse job override flag %s", v); else j->override = j->override || b; + } else if (streq(l, "job-irreversible")) { + int b = parse_boolean(v); + if (b < 0) + log_debug("Failed to parse job irreversible flag %s", v); + else + j->irreversible = j->irreversible || b; } else if (streq(l, "job-sent-dbus-new-signal")) { int b = parse_boolean(v); if (b < 0) @@ -881,6 +1079,29 @@ int job_coldplug(Job *j) { return 0; } +void job_shutdown_magic(Job *j) { + assert(j); + + /* The shutdown target gets some special treatment here: we + * tell the kernel to begin with flushing its disk caches, to + * optimize shutdown time a bit. Ideally we wouldn't hardcode + * this magic into PID 1. However all other processes aren't + * options either since they'd exit much sooner than PID 1 and + * asynchronous sync() would cause their exit to be + * delayed. */ + + if (!unit_has_name(j->unit, SPECIAL_SHUTDOWN_TARGET)) + return; + + if (j->type != JOB_START) + return; + + if (detect_container(NULL) > 0) + return; + + asynchronous_sync(); +} + static const char* const job_state_table[_JOB_STATE_MAX] = { [JOB_WAITING] = "waiting", [JOB_RUNNING] = "running" @@ -896,6 +1117,7 @@ static const char* const job_type_table[_JOB_TYPE_MAX] = { [JOB_RELOAD_OR_START] = "reload-or-start", [JOB_RESTART] = "restart", [JOB_TRY_RESTART] = "try-restart", + [JOB_NOP] = "nop", }; DEFINE_STRING_TABLE_LOOKUP(job_type, JobType); @@ -903,6 +1125,7 @@ DEFINE_STRING_TABLE_LOOKUP(job_type, JobType); static const char* const job_mode_table[_JOB_MODE_MAX] = { [JOB_FAIL] = "fail", [JOB_REPLACE] = "replace", + [JOB_REPLACE_IRREVERSIBLY] = "replace-irreversibly", [JOB_ISOLATE] = "isolate", [JOB_IGNORE_DEPENDENCIES] = "ignore-dependencies", [JOB_IGNORE_REQUIREMENTS] = "ignore-requirements"