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dbus: pass along information why a job failed when it failed (dbus api change!)

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This commit is contained in:
Lennart Poettering 2011-02-24 02:36:34 +01:00
parent ccc80078fe
commit 5d44db4a90
9 changed files with 116 additions and 47 deletions
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8
src/dbus-job.c
View file

@ -295,10 +295,10 @@ oom:
log_error("Failed to allocate job change signal.");
}
void bus_job_send_removed_signal(Job *j, bool success) {
void bus_job_send_removed_signal(Job *j) {
char *p = NULL;
DBusMessage *m = NULL;
dbus_bool_t b = success;
const char *r;
assert(j);
@ -314,10 +314,12 @@ void bus_job_send_removed_signal(Job *j, bool success) {
if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "JobRemoved")))
goto oom;
r = job_result_to_string(j->result);
if (!dbus_message_append_args(m,
DBUS_TYPE_UINT32, &j->id,
DBUS_TYPE_OBJECT_PATH, &p,
DBUS_TYPE_BOOLEAN, &b,
DBUS_TYPE_STRING, &r,
DBUS_TYPE_INVALID))
goto oom;

4
src/dbus-job.h
View file

@ -24,8 +24,10 @@
#include <dbus/dbus.h>
#include "job.h"
void bus_job_send_change_signal(Job *j);
void bus_job_send_removed_signal(Job *j, bool success);
void bus_job_send_removed_signal(Job *j);
extern const DBusObjectPathVTable bus_job_vtable;

2
src/dbus-manager.c
View file

@ -143,7 +143,7 @@
" <signal name=\"JobRemoved\">\n" \
" <arg name=\"id\" type=\"u\"/>\n" \
" <arg name=\"job\" type=\"o\"/>\n" \
" <arg name=\"success\" type=\"b\"/>\n" \
" <arg name=\"result\" type=\"s\"/>\n" \
" </signal>"

47
src/job.c
View file

@ -60,7 +60,7 @@ void job_free(Job *j) {
/* Detach from next 'bigger' objects */
if (j->installed) {
bus_job_send_removed_signal(j, !j->failed);
bus_job_send_removed_signal(j);
if (j->unit->meta.job == j) {
j->unit->meta.job = NULL;
@ -376,7 +376,6 @@ int job_run_and_invalidate(Job *j) {
j->state = JOB_RUNNING;
job_add_to_dbus_queue(j);
job_start_timer(j);
/* While we execute this operation the job might go away (for
* example: because it is replaced by a new, conflicting
@ -457,17 +456,19 @@ int job_run_and_invalidate(Job *j) {
if ((j = manager_get_job(m, id))) {
if (r == -EALREADY)
r = job_finish_and_invalidate(j, true);
r = job_finish_and_invalidate(j, JOB_DONE);
else if (r == -EAGAIN)
j->state = JOB_WAITING;
else if (r < 0)
r = job_finish_and_invalidate(j, false);
r = job_finish_and_invalidate(j, JOB_FAILED);
else
job_start_timer(j);
}
return r;
}
int job_finish_and_invalidate(Job *j, bool success) {
int job_finish_and_invalidate(Job *j, JobResult result) {
Unit *u;
Unit *other;
JobType t;
@ -479,7 +480,7 @@ int job_finish_and_invalidate(Job *j, bool success) {
job_add_to_dbus_queue(j);
/* Patch restart jobs so that they become normal start jobs */
if (success && (j->type == JOB_RESTART || j->type == JOB_TRY_RESTART)) {
if (result == JOB_DONE && (j->type == JOB_RESTART || j->type == JOB_TRY_RESTART)) {
log_debug("Converting job %s/%s -> %s/%s",
j->unit->meta.id, job_type_to_string(j->type),
@ -492,22 +493,26 @@ int job_finish_and_invalidate(Job *j, bool success) {
return 0;
}
j->failed = !success;
j->result = result;
log_debug("Job %s/%s finished, success=%s", j->unit->meta.id, job_type_to_string(j->type), yes_no(success));
log_debug("Job %s/%s finished, result=%s", j->unit->meta.id, job_type_to_string(j->type), job_result_to_string(result));
if (j->failed)
if (result == JOB_FAILED)
j->manager->n_failed_jobs ++;
u = j->unit;
t = j->type;
job_free(j);
if (!success && j->type == JOB_START)
if (result == JOB_FAILED && j->type == JOB_START)
unit_status_printf(u, "Starting %s " ANSI_HIGHLIGHT_ON "failed" ANSI_HIGHLIGHT_OFF ", see 'systemctl status %s' for details.\n", unit_description(u), u->meta.id);
else if (result == JOB_TIMEOUT && j->type == JOB_START)
unit_status_printf(u, "Starting %s " ANSI_HIGHLIGHT_ON "timed out" ANSI_HIGHLIGHT_OFF ".\n", unit_description(u), u->meta.id);
else if (result == JOB_TIMEOUT && j->type == JOB_STOP)
unit_status_printf(u, "Stopping %s " ANSI_HIGHLIGHT_ON "timed out" ANSI_HIGHLIGHT_OFF ".\n", unit_description(u), u->meta.id);
/* Fail depending jobs on failure */
if (!success) {
if (result != JOB_DONE) {
if (t == JOB_START ||
t == JOB_VERIFY_ACTIVE ||
@ -518,14 +523,14 @@ int job_finish_and_invalidate(Job *j, bool success) {
(other->meta.job->type == JOB_START ||
other->meta.job->type == JOB_VERIFY_ACTIVE ||
other->meta.job->type == JOB_RELOAD_OR_START))
job_finish_and_invalidate(other->meta.job, false);
job_finish_and_invalidate(other->meta.job, JOB_DEPENDENCY);
SET_FOREACH(other, u->meta.dependencies[UNIT_BOUND_BY], i)
if (other->meta.job &&
(other->meta.job->type == JOB_START ||
other->meta.job->type == JOB_VERIFY_ACTIVE ||
other->meta.job->type == JOB_RELOAD_OR_START))
job_finish_and_invalidate(other->meta.job, false);
job_finish_and_invalidate(other->meta.job, JOB_DEPENDENCY);
SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
if (other->meta.job &&
@ -533,7 +538,7 @@ int job_finish_and_invalidate(Job *j, bool success) {
(other->meta.job->type == JOB_START ||
other->meta.job->type == JOB_VERIFY_ACTIVE ||
other->meta.job->type == JOB_RELOAD_OR_START))
job_finish_and_invalidate(other->meta.job, false);
job_finish_and_invalidate(other->meta.job, JOB_DEPENDENCY);
} else if (t == JOB_STOP) {
@ -542,7 +547,7 @@ int job_finish_and_invalidate(Job *j, bool success) {
(other->meta.job->type == JOB_START ||
other->meta.job->type == JOB_VERIFY_ACTIVE ||
other->meta.job->type == JOB_RELOAD_OR_START))
job_finish_and_invalidate(other->meta.job, false);
job_finish_and_invalidate(other->meta.job, JOB_DEPENDENCY);
}
}
@ -648,7 +653,7 @@ void job_timer_event(Job *j, uint64_t n_elapsed, Watch *w) {
assert(w == &j->timer_watch);
log_warning("Job %s/%s timed out.", j->unit->meta.id, job_type_to_string(j->type));
job_finish_and_invalidate(j, false);
job_finish_and_invalidate(j, JOB_TIMEOUT);
}
static const char* const job_state_table[_JOB_STATE_MAX] = {
@ -678,3 +683,13 @@ static const char* const job_mode_table[_JOB_MODE_MAX] = {
};
DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode);
static const char* const job_result_table[_JOB_RESULT_MAX] = {
[JOB_DONE] = "done",
[JOB_CANCELED] = "canceled",
[JOB_TIMEOUT] = "timeout",
[JOB_FAILED] = "failed",
[JOB_DEPENDENCY] = "dependency"
};
DEFINE_STRING_TABLE_LOOKUP(job_result, JobResult);

19
src/job.h
View file

@ -30,6 +30,7 @@ typedef struct JobDependency JobDependency;
typedef enum JobType JobType;
typedef enum JobState JobState;
typedef enum JobMode JobMode;
typedef enum JobResult JobResult;
#include "manager.h"
#include "unit.h"
@ -71,6 +72,16 @@ enum JobMode {
_JOB_MODE_INVALID = -1
};
enum JobResult {
JOB_DONE,
JOB_CANCELED,
JOB_TIMEOUT,
JOB_FAILED,
JOB_DEPENDENCY,
_JOB_RESULT_MAX,
_JOB_RESULT_INVALID = -1
};
struct JobDependency {
/* Encodes that the 'subject' job needs the 'object' job in
* some way. This structure is used only while building a transaction. */
@ -110,13 +121,14 @@ struct Job {
DBusConnection *bus;
char *bus_client;
JobResult result;
bool installed:1;
bool in_run_queue:1;
bool matters_to_anchor:1;
bool override:1;
bool in_dbus_queue:1;
bool sent_dbus_new_signal:1;
bool failed:1;
bool ignore_deps:1;
};
@ -146,7 +158,7 @@ int job_start_timer(Job *j);
void job_timer_event(Job *j, uint64_t n_elapsed, Watch *w);
int job_run_and_invalidate(Job *j);
int job_finish_and_invalidate(Job *j, bool success);
int job_finish_and_invalidate(Job *j, JobResult result);
char *job_dbus_path(Job *j);
@ -159,4 +171,7 @@ JobState job_state_from_string(const char *s);
const char* job_mode_to_string(JobMode t);
JobMode job_mode_from_string(const char *s);
const char* job_result_to_string(JobResult t);
JobResult job_result_from_string(const char *s);
#endif

2
src/systemadm.vala
View file

@ -762,7 +762,7 @@ public class MainWindow : Window {
} while (unit_model.iter_next(ref iter));
}
public void on_job_removed(uint32 id, ObjectPath path, bool success) {
public void on_job_removed(uint32 id, ObjectPath path, string res) {
TreeIter iter;
if (!(job_model.get_iter_first(out iter)))
return;

67
src/systemctl.c
View file

@ -1120,7 +1120,7 @@ finish:
typedef struct WaitData {
Set *set;
bool failed;
char *result;
} WaitData;
static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
@ -1144,26 +1144,52 @@ static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *me
} else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
uint32_t id;
const char *path;
const char *path, *result;
dbus_bool_t success = true;
if (!dbus_message_get_args(message, &error,
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_BOOLEAN, &success,
DBUS_TYPE_INVALID))
log_error("Failed to parse message: %s", bus_error_message(&error));
else {
if (dbus_message_get_args(message, &error,
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_STRING, &result,
DBUS_TYPE_INVALID)) {
char *p;
if ((p = set_remove(d->set, (char*) path)))
free(p);
if (!success)
d->failed = true;
if (*result)
d->result = strdup(result);
goto finish;
}
#ifndef LEGACY
dbus_error_free(&error);
if (dbus_message_get_args(message, &error,
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_BOOLEAN, &success,
DBUS_TYPE_INVALID)) {
char *p;
/* Compatibility with older systemd versions <
* 19 during upgrades. This should be dropped
* one day */
if ((p = set_remove(d->set, (char*) path)))
free(p);
if (!success)
d->result = strdup("failed");
goto finish;
}
#endif
log_error("Failed to parse message: %s", bus_error_message(&error));
}
finish:
dbus_error_free(&error);
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
}
@ -1204,7 +1230,6 @@ static int wait_for_jobs(DBusConnection *bus, Set *s) {
zero(d);
d.set = s;
d.failed = false;
if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
log_error("Failed to add filter.");
@ -1216,10 +1241,19 @@ static int wait_for_jobs(DBusConnection *bus, Set *s) {
dbus_connection_read_write_dispatch(bus, -1))
;
if (!arg_quiet && d.failed)
log_error("Job failed. See system logs and 'systemctl status' for details.");
if (!arg_quiet && d.result) {
if (streq(d.result, "timeout"))
log_error("Job timed out.");
else if (streq(d.result, "canceled"))
log_error("Job canceled.");
else if (streq(d.result, "dependency"))
log_error("A dependency job failed. See system logs for details.");
else
log_error("Job failed. See system logs and 'systemctl status' for details.");
}
r = d.failed ? -EIO : 0;
r = d.result ? -EIO : 0;
free(d.result);
finish:
/* This is slightly dirty, since we don't undo the filter registration. */
@ -2750,11 +2784,12 @@ static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage
} else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") ||
dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
uint32_t id;
const char *path;
const char *path, *result;
if (!dbus_message_get_args(message, &error,
DBUS_TYPE_UINT32, &id,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_STRING, &result,
DBUS_TYPE_INVALID))
log_error("Failed to parse message: %s", bus_error_message(&error));
else if (streq(dbus_message_get_member(message), "JobNew"))

2
src/systemd-interfaces.vala
View file

@ -85,7 +85,7 @@ public interface Manager : DBusProxy {
public abstract signal void unit_new(string id, ObjectPath path);
public abstract signal void unit_removed(string id, ObjectPath path);
public abstract signal void job_new(uint32 id, ObjectPath path);
public abstract signal void job_removed(uint32 id, ObjectPath path, bool success);
public abstract signal void job_removed(uint32 id, ObjectPath path, string res);
}
[DBus (name = "org.freedesktop.systemd1.Unit")]

12
src/unit.c
View file

@ -1123,12 +1123,12 @@ void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_su
case JOB_VERIFY_ACTIVE:
if (UNIT_IS_ACTIVE_OR_RELOADING(ns))
job_finish_and_invalidate(u->meta.job, true);
job_finish_and_invalidate(u->meta.job, JOB_DONE);
else if (u->meta.job->state == JOB_RUNNING && ns != UNIT_ACTIVATING) {
unexpected = true;
if (UNIT_IS_INACTIVE_OR_FAILED(ns))
job_finish_and_invalidate(u->meta.job, ns != UNIT_FAILED);
job_finish_and_invalidate(u->meta.job, ns == UNIT_FAILED ? JOB_FAILED : JOB_DONE);
}
break;
@ -1138,12 +1138,12 @@ void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_su
if (u->meta.job->state == JOB_RUNNING) {
if (ns == UNIT_ACTIVE)
job_finish_and_invalidate(u->meta.job, reload_success);
job_finish_and_invalidate(u->meta.job, reload_success ? JOB_DONE : JOB_FAILED);
else if (ns != UNIT_ACTIVATING && ns != UNIT_RELOADING) {
unexpected = true;
if (UNIT_IS_INACTIVE_OR_FAILED(ns))
job_finish_and_invalidate(u->meta.job, ns != UNIT_FAILED);
job_finish_and_invalidate(u->meta.job, ns == UNIT_FAILED ? JOB_FAILED : JOB_DONE);
}
}
@ -1154,10 +1154,10 @@ void unit_notify(Unit *u, UnitActiveState os, UnitActiveState ns, bool reload_su
case JOB_TRY_RESTART:
if (UNIT_IS_INACTIVE_OR_FAILED(ns))
job_finish_and_invalidate(u->meta.job, true);
job_finish_and_invalidate(u->meta.job, JOB_DONE);
else if (u->meta.job->state == JOB_RUNNING && ns != UNIT_DEACTIVATING) {
unexpected = true;
job_finish_and_invalidate(u->meta.job, false);
job_finish_and_invalidate(u->meta.job, JOB_FAILED);
}
break;