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core: Added support for ERRNO NOTIFY_SOCKET message parsing, and added StatusErrno dbus property along StatusText to allow notification of numeric status condition while degraded service operation or any other special situation.

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This commit is contained in:
Miguel Angel Ajo 2014-07-07 14:20:36 +02:00 committed by Lennart Poettering
parent 3250929b70
commit 4774e35726
3 changed files with 19 additions and 0 deletions
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1
src/core/dbus-service.c
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@ -60,6 +60,7 @@ const sd_bus_vtable bus_service_vtable[] = {
SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Service, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("BusName", "s", NULL, offsetof(Service, bus_name), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("StatusText", "s", NULL, offsetof(Service, status_text), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("StatusErrno", "i", NULL, offsetof(Service, status_errno), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Service, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
BUS_EXEC_STATUS_VTABLE("ExecMain", offsetof(Service, main_exec_status), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPre", offsetof(Service, exec_command[SERVICE_EXEC_START_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),

17
src/core/service.c
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@ -2637,6 +2637,23 @@ static void service_notify_message(Unit *u, pid_t pid, char **tags) {
free(t);
}
/* Interpret ERRNO= */
e = strv_find_prefix(tags, "ERRNO=");
if (e) {
int status_errno;
if (safe_atoi(e + 6, &status_errno) < 0)
log_warning_unit(u->id, "Failed to parse ERRNO= field in notification message: %s", e);
else {
log_debug_unit(u->id, "%s: got %s", u->id, e);
if (s->status_errno != status_errno) {
s->status_errno = status_errno;
notify_dbus = true;
}
}
}
/* Interpret WATCHDOG= */
if (strv_find(tags, "WATCHDOG=1")) {
log_debug_unit(u->id, "%s: got WATCHDOG=1", u->id);

1
src/core/service.h
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@ -182,6 +182,7 @@ struct Service {
char *bus_name;
char *status_text;
int status_errno;
FailureAction failure_action;