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https://github.com/systemd/systemd-stable.git
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core: split $MONITOR_METADATA and return it only if a single unit triggers OnFailure/OnSuccess
Remove the list logic, and simply skip passing metadata if more than one unit triggered an OnFailure/OnSuccess handler. Instead of a single env var to loop over, provide each separate item as its own variable. Fixes https://github.com/systemd/systemd/issues/22370
This commit is contained in:
Luca Boccassi
parent
bd844eae23
commit
95c81c55b2
@ -3404,7 +3404,7 @@ StandardInputData=SWNrIHNpdHplIGRhIHVuJyBlc3NlIEtsb3BzLAp1ZmYgZWVtYWwga2xvcHAncy
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<varlistentry>
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<term><varname>$SERVICE_RESULT</varname></term>
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<listitem><para>Only defined for the service unit type, this environment variable is passed to all
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<listitem><para>Only used for the service unit type. This environment variable is passed to all
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<varname>ExecStop=</varname> and <varname>ExecStopPost=</varname> processes, and encodes the service
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"result". Currently, the following values are defined:</para>
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@ -3472,7 +3472,7 @@ StandardInputData=SWNrIHNpdHplIGRhIHVuJyBlc3NlIEtsb3BzLAp1ZmYgZWVtYWwga2xvcHAncy
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<term><varname>$EXIT_CODE</varname></term>
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<term><varname>$EXIT_STATUS</varname></term>
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<listitem><para>Only defined for the service unit type, these environment variables are passed to all
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<listitem><para>Only defined for the service unit type. These environment variables are passed to all
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<varname>ExecStop=</varname>, <varname>ExecStopPost=</varname> processes and contain exit status/code
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information of the main process of the service. For the precise definition of the exit code and status, see
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<citerefentry><refentrytitle>wait</refentrytitle><manvolnum>2</manvolnum></citerefentry>. <varname>$EXIT_CODE</varname>
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@ -3585,38 +3585,28 @@ StandardInputData=SWNrIHNpdHplIGRhIHVuJyBlc3NlIEtsb3BzLAp1ZmYgZWVtYWwga2xvcHAncy
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</varlistentry>
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<varlistentry>
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<term><varname>$MONITOR_METADATA</varname></term>
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<term><varname>$MONITOR_SERVICE_RESULT</varname></term>
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<term><varname>$MONITOR_EXIT_CODE</varname></term>
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<term><varname>$MONITOR_EXIT_STATUS</varname></term>
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<term><varname>$MONITOR_INVOCATION_ID</varname></term>
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<term><varname>$MONITOR_UNIT</varname></term>
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<listitem><para>Only defined for the service unit type, this environment variable is passed to all
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<varname>ExecStart=</varname> and <varname>ExecStartPre=</varname> processes which run in services
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triggered by <varname>OnFailure=</varname> or <varname>OnSuccess=</varname> dependencies.</para>
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<para>
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The contents of this variable consists of a semi-colon separated list of metadata fields associated with the triggering
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service. For each service which triggered the <varname>OnFailure=</varname> or <varname>OnSuccess=</varname>
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dependency the following fields will be set:
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<listitem><para>Only defined for the service unit type. Those environment variable are passed to
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all <varname>ExecStart=</varname> and <varname>ExecStartPre=</varname> processes which run in
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services triggered by <varname>OnFailure=</varname> or <varname>OnSuccess=</varname> dependencies.
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</para>
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<itemizedlist>
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<listitem><para><constant>SERVICE_RESULT</constant></para></listitem>
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<listitem><para><constant>EXIT_CODE</constant></para></listitem>
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<listitem><para><constant>EXIT_STATUS</constant></para></listitem>
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<listitem><para><constant>INVOCATION_ID</constant></para></listitem>
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<listitem><para><constant>UNIT</constant></para></listitem>
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</itemizedlist>
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<para>The fields <constant>SERVICE_RESULT</constant>, <constant>EXIT_CODE</constant> and
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<constant>EXIT_STATUS</constant> may take the same values that are allowed when set for
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<varname>ExecStop=</varname> and <varname>ExecStopPost=</varname> processes. The fields
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<constant>INVOCATION_ID</constant> and <constant>UNIT</constant> are the invocaton id and unit
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name of the service which triggered the dependency. Each field is comma separated, i.e.</para>
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<programlisting>
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SERVICE_RESULT=result-string,EXIT_CODE=exit-code,EXIT_STATUS=exit-status,INVOCATION_ID=invocation-id,UNIT=triggering.service
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</programlisting>
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</listitem>
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<para>Variables <varname>$MONITOR_SERVICE_RESULT</varname>, <varname>$MONITOR_EXIT_CODE</varname>
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and <varname>$MONITOR_EXIT_STATUS</varname> take the same values as for
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<varname>ExecStop=</varname> and <varname>ExecStopPost=</varname> processes. Variables
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<varname>$MONITOR_INVOCATION_ID</varname> and <varname>$MONITOR_UNIT</varname> are set to the
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invocaton id and unit name of the service which triggered the dependency.</para>
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<para>Note that when multiple services trigger the same unit, those variables will be
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<emphasis>not</emphasis> be passed. Consider using a template handler unit for that case instead:
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<literal>OnFailure=<replaceable>handler</replaceable>@%n.service</literal> for non-templated units,
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or <literal>OnFailure=<replaceable>handler</replaceable>@%p-%i.service</literal> for templated
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units.</para></listitem>
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</varlistentry>
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<varlistentry>
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@ -4060,7 +4050,7 @@ SERVICE_RESULT=result-string,EXIT_CODE=exit-code,EXIT_STATUS=exit-status,INVOCAT
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<title>Examples</title>
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<example>
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<title><varname>$MONITOR_METADATA</varname> usage</title>
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<title><varname>$MONITOR_<replaceable>*</replaceable></varname> usage</title>
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<para>A service <filename index="false">myfailer.service</filename> which can trigger an
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<varname>OnFailure=</varname> dependency.</para>
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@ -4094,33 +4084,31 @@ ExecStart=/bin/mysecondprogram
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Description=Acts on service failing or succeeding
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[Service]
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ExecStart=/bin/bash -c "echo $MONITOR_METADATA"
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ExecStart=/bin/bash -c "echo $MONITOR_SERVICE_RESULT $MONITOR_EXIT_CODE $MONITOR_EXIT_STATUS $MONITOR_INVOCATION_ID $MONITOR_UNIT"
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</programlisting>
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<para>If <filename index="false">myfailer.service</filename> were to run and exit in failure,
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then <filename index="false">myhandler.service</filename> would be triggered and the
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<varname>$MONITOR_METADATA</varname> variable would be set as follows:</para>
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monitor variables would be set as follows:</para>
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<programlisting>
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MONITOR_METADATA=SERVICE_RESULT=result-string,EXIT_CODE=exit-code,EXIT_STATUS=exit-status,INVOCATION_ID=invocation-id,UNIT=myfailer.service
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MONITOR_SERVICE_RESULT=exit-code
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MONITOR_EXIT_CODE=exited
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MONITOR_EXIT_STATUS=1
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MONITOR_INVOCATION_ID=cc8fdc149b2b4ca698d4f259f4054236
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MONITOR_UNIT=myfailer.service
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</programlisting>
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<para>If <filename index="false">mysuccess.service</filename> were to run and exit in success,
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then <filename index="false">myhandler.service</filename> would be triggered and the
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<varname>$MONITOR_METADATA</varname> variable would be set as follows:</para>
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monitor variables would be set as follows:</para>
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<programlisting>
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MONITOR_METADATA=SERVICE_RESULT=result-string,EXIT_CODE=exit-code,EXIT_STATUS=exit-status,INVOCATION_ID=invocation-id,UNIT=mysuccess.service
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</programlisting>
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<para>If <filename index="false">myfailer.service</filename> and <filename index="false">mysuccess.service</filename> were to run and exit,
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there is a chance that the triggered dependency start job might be merged. Thus only a single invocation of
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<filename index="false">myhandler.service</filename> would be triggered. In this case the <varname>$MONITOR_METADATA</varname> variable
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would be a list containing exit metadata for both of <filename index="false">myfailer.service</filename>
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and <filename index="false">mysuccess.service</filename>.</para>
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<programlisting>
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MONITOR_METADATA=SERVICE_RESULT=result-string,EXIT_CODE=exit-code,EXIT_STATUS=exit-status,INVOCATION_ID=invocation-id,UNIT=myfailer.service;SERVICE_RESULT=result-string,EXIT_CODE=exit-code,EXIT_STATUS=exit-status,INVOCATION_ID=invocation-id,UNIT=mysuccess.service
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MONITOR_SERVICE_RESULT=success
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MONITOR_EXIT_CODE=exited
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MONITOR_EXIT_STATUS=0
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MONITOR_INVOCATION_ID=6ab9af147b8c4a3ebe36e7a5f8611697
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MONITOR_UNIT=mysuccess.service
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</programlisting>
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</example>
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@ -99,9 +99,6 @@ Job* job_free(Job *j) {
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assert(!j->subject_list);
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assert(!j->object_list);
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while (!LIST_IS_EMPTY(j->triggered_by))
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LIST_POP(triggered_by, j->triggered_by);
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job_unlink(j);
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sd_bus_track_unref(j->bus_track);
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@ -110,13 +107,6 @@ Job* job_free(Job *j) {
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return mfree(j);
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}
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void job_add_triggering_unit(Job *j, Unit *u) {
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assert(j);
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assert(u);
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LIST_APPEND(triggered_by, j->triggered_by, u);
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}
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static void job_set_state(Job *j, JobState state) {
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assert(j);
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assert(state >= 0);
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@ -197,8 +187,6 @@ static void job_merge_into_installed(Job *j, Job *other) {
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j->irreversible = j->irreversible || other->irreversible;
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j->ignore_order = j->ignore_order || other->ignore_order;
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if (other->triggered_by)
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LIST_JOIN(triggered_by, j->triggered_by, other->triggered_by);
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}
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Job* job_install(Job *j) {
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@ -124,8 +124,6 @@ struct Job {
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LIST_HEAD(JobDependency, subject_list);
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LIST_HEAD(JobDependency, object_list);
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LIST_HEAD(Unit, triggered_by);
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/* Used for graph algs as a "I have been here" marker */
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Job* marker;
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unsigned generation;
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@ -246,5 +244,3 @@ JobResult job_result_from_string(const char *s) _pure_;
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const char* job_type_to_access_method(JobType t);
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int job_compare(Job *a, Job *b, UnitDependencyAtom assume_dep);
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void job_add_triggering_unit(Job *j, Unit *u);
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@ -1447,81 +1447,37 @@ static bool service_exec_needs_notify_socket(Service *s, ExecFlags flags) {
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return s->notify_access != NOTIFY_NONE;
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}
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static int service_create_monitor_md_env(Job *j, char **ret) {
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_cleanup_free_ char *var = NULL;
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const char *list_delim = ";";
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bool first = true;
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Unit *tu;
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static Service *service_get_triggering_service(Service *s) {
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Unit *candidate = NULL, *other;
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assert(j);
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assert(ret);
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assert(s);
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/* Create an environment variable 'MONITOR_METADATA', if creation is successful
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* a pointer to it is returned via ret.
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/* Return the service which triggered service 's', this means dependency
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* types which include the UNIT_ATOM_ON_{FAILURE,SUCCESS}_OF atoms.
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*
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* This variable contains a space separated set of fields which relate to
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* the service(s) which triggered job 'j'. Job 'j' is the JOB_START job for
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* an OnFailure= or OnSuccess= dependency. Format of the MONITOR_METADATA
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* variable is as follows:
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*
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* MONITOR_METADATA="SERVICE_RESULT=<result-string0>,EXIT_CODE=<exit-code0>,EXIT_STATUS=<exit-status0>,
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* INVOCATION_ID=<id>,UNIT=<triggering-unit0.service>;
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* SERVICE_RESULT=<result-stringN>,EXIT_CODE=<exit-codeN>,EXIT_STATUS=<exit-statusN>,
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* INVOCATION_ID=<id>,UNIT=<triggering-unitN.service>"
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*
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* Multiple results may be passed as in the above example if jobs are merged, i.e.
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* some services a and b contain an OnFailure= or OnSuccess= dependency on the same
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* service.
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*
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* For example:
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*
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* MONITOR_METADATA="SERVICE_RESULT=exit-code,EXIT_CODE=exited,EXIT_STATUS=1,INVOCATION_ID=02dd868af2f344b18edaf74b618b2f90,UNIT=failure.service;
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* SERVICE_RESULT=exit-code,EXIT_CODE=exited,EXIT_STATUS=1,INVOCATION_ID=80cb228bd7344f77a090eda603a3cfe2,UNIT=failure2.service"
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*/
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* N.B. if there are multiple services which could trigger 's' via OnFailure=
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* or OnSuccess= then we return NULL. This is since we don't know from which
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* one to propagate the exit status. */
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LIST_FOREACH(triggered_by, tu, j->triggered_by) {
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Service *env_source = SERVICE(tu);
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int r;
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if (!env_source)
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continue;
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/* Add the environment variable name first. */
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if (first && !strextend(&var, "MONITOR_METADATA="))
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return -ENOMEM;
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if (!strextend(&var, !first ? list_delim : "", "SERVICE_RESULT=", service_result_to_string(env_source->result)))
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return -ENOMEM;
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first = false;
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if (env_source->main_exec_status.pid > 0 &&
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dual_timestamp_is_set(&env_source->main_exec_status.exit_timestamp)) {
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if (!strextend(&var, ",EXIT_CODE=", sigchld_code_to_string(env_source->main_exec_status.code)))
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return -ENOMEM;
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if (env_source->main_exec_status.code == CLD_EXITED) {
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r = strextendf(&var, ",EXIT_STATUS=%i",
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env_source->main_exec_status.status);
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if (r < 0)
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return r;
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} else if (!strextend(&var, ",EXIT_STATUS=", signal_to_string(env_source->main_exec_status.status)))
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return -ENOMEM;
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UNIT_FOREACH_DEPENDENCY(other, UNIT(s), UNIT_ATOM_ON_FAILURE_OF) {
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if (candidate) {
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log_unit_debug(UNIT(s), "multiple trigger source candidates for exit status propagation, skipping.");
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return NULL;
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}
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if (!sd_id128_is_null(UNIT(env_source)->invocation_id)) {
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r = strextendf(&var, ",INVOCATION_ID=" SD_ID128_FORMAT_STR,
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SD_ID128_FORMAT_VAL(UNIT(env_source)->invocation_id));
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if (r < 0)
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return r;
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}
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if (!strextend(&var, ",UNIT=", UNIT(env_source)->id))
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return -ENOMEM;
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candidate = other;
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}
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*ret = TAKE_PTR(var);
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return 0;
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UNIT_FOREACH_DEPENDENCY(other, UNIT(s), UNIT_ATOM_ON_SUCCESS_OF) {
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if (candidate) {
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log_unit_debug(UNIT(s), "multiple trigger source candidates for exit status propagation, skipping.");
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return NULL;
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}
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candidate = other;
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}
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return SERVICE(candidate);
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}
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static int service_spawn(
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@ -1588,7 +1544,7 @@ static int service_spawn(
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if (r < 0)
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return r;
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our_env = new0(char*, 10);
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our_env = new0(char*, 12);
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if (!our_env)
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return -ENOMEM;
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@ -1645,30 +1601,44 @@ static int service_spawn(
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}
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}
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Service *env_source = NULL;
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const char *monitor_prefix;
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if (flags & EXEC_SETENV_RESULT) {
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if (asprintf(our_env + n_env++, "SERVICE_RESULT=%s", service_result_to_string(s->result)) < 0)
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env_source = s;
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monitor_prefix = "";
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} else if (flags & EXEC_SETENV_MONITOR_RESULT) {
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env_source = service_get_triggering_service(s);
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monitor_prefix = "MONITOR_";
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}
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if (env_source) {
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if (asprintf(our_env + n_env++, "%sSERVICE_RESULT=%s", monitor_prefix, service_result_to_string(env_source->result)) < 0)
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return -ENOMEM;
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if (s->main_exec_status.pid > 0 &&
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dual_timestamp_is_set(&s->main_exec_status.exit_timestamp)) {
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if (asprintf(our_env + n_env++, "EXIT_CODE=%s", sigchld_code_to_string(s->main_exec_status.code)) < 0)
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if (env_source->main_exec_status.pid > 0 &&
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dual_timestamp_is_set(&env_source->main_exec_status.exit_timestamp)) {
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if (asprintf(our_env + n_env++, "%sEXIT_CODE=%s", monitor_prefix, sigchld_code_to_string(env_source->main_exec_status.code)) < 0)
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return -ENOMEM;
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if (s->main_exec_status.code == CLD_EXITED)
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r = asprintf(our_env + n_env++, "EXIT_STATUS=%i", s->main_exec_status.status);
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if (env_source->main_exec_status.code == CLD_EXITED)
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r = asprintf(our_env + n_env++, "%sEXIT_STATUS=%i", monitor_prefix, env_source->main_exec_status.status);
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else
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r = asprintf(our_env + n_env++, "EXIT_STATUS=%s", signal_to_string(s->main_exec_status.status));
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r = asprintf(our_env + n_env++, "%sEXIT_STATUS=%s", monitor_prefix, signal_to_string(env_source->main_exec_status.status));
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if (r < 0)
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return -ENOMEM;
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}
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} else if (flags & EXEC_SETENV_MONITOR_RESULT) {
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Job *j = UNIT(s)->job;
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if (j) {
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r = service_create_monitor_md_env(j, our_env + n_env++);
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if (r < 0)
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return r;
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if (env_source != s) {
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if (!sd_id128_is_null(UNIT(env_source)->invocation_id)) {
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r = asprintf(our_env + n_env++, "%sINVOCATION_ID=" SD_ID128_FORMAT_STR,
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monitor_prefix, SD_ID128_FORMAT_VAL(UNIT(env_source)->invocation_id));
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if (r < 0)
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return -ENOMEM;
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}
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if (asprintf(our_env + n_env++, "%sUNIT=%s", monitor_prefix, UNIT(env_source)->id) < 0)
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return -ENOMEM;
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}
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}
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@ -82,13 +82,11 @@ static const UnitDependencyAtom atom_map[_UNIT_DEPENDENCY_MAX] = {
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[UNIT_PROPAGATES_STOP_TO] = UNIT_ATOM_RETROACTIVE_STOP_ON_STOP |
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UNIT_ATOM_PROPAGATE_STOP,
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[UNIT_ON_FAILURE] = UNIT_ATOM_ON_FAILURE |
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UNIT_ATOM_BACK_REFERENCE_IMPLIED,
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[UNIT_ON_SUCCESS] = UNIT_ATOM_ON_SUCCESS |
|
||||
UNIT_ATOM_BACK_REFERENCE_IMPLIED,
|
||||
|
||||
/* These are simple dependency types: they consist of a single atom only */
|
||||
[UNIT_ON_FAILURE] = UNIT_ATOM_ON_FAILURE,
|
||||
[UNIT_ON_SUCCESS] = UNIT_ATOM_ON_SUCCESS,
|
||||
[UNIT_ON_FAILURE_OF] = UNIT_ATOM_ON_FAILURE_OF,
|
||||
[UNIT_ON_SUCCESS_OF] = UNIT_ATOM_ON_SUCCESS_OF,
|
||||
[UNIT_BEFORE] = UNIT_ATOM_BEFORE,
|
||||
[UNIT_AFTER] = UNIT_ATOM_AFTER,
|
||||
[UNIT_TRIGGERS] = UNIT_ATOM_TRIGGERS,
|
||||
@ -104,8 +102,6 @@ static const UnitDependencyAtom atom_map[_UNIT_DEPENDENCY_MAX] = {
|
||||
* things discoverable/debuggable as they are the inverse dependencies to some of the above. As they
|
||||
* have no effect of their own, they all map to no atoms at all, i.e. the value 0. */
|
||||
[UNIT_RELOAD_PROPAGATED_FROM] = 0,
|
||||
[UNIT_ON_SUCCESS_OF] = 0,
|
||||
[UNIT_ON_FAILURE_OF] = 0,
|
||||
[UNIT_STOP_PROPAGATED_FROM] = 0,
|
||||
};
|
||||
|
||||
@ -200,17 +196,19 @@ UnitDependency unit_dependency_from_unique_atom(UnitDependencyAtom atom) {
|
||||
case UNIT_ATOM_PROPAGATE_STOP_FAILURE:
|
||||
return UNIT_CONFLICTED_BY;
|
||||
|
||||
case UNIT_ATOM_ON_FAILURE |
|
||||
UNIT_ATOM_BACK_REFERENCE_IMPLIED:
|
||||
/* And now, the simple ones */
|
||||
|
||||
case UNIT_ATOM_ON_FAILURE:
|
||||
return UNIT_ON_FAILURE;
|
||||
|
||||
case UNIT_ATOM_ON_SUCCESS |
|
||||
UNIT_ATOM_BACK_REFERENCE_IMPLIED:
|
||||
case UNIT_ATOM_ON_SUCCESS:
|
||||
return UNIT_ON_SUCCESS;
|
||||
|
||||
/* And now, the simple ones */
|
||||
case UNIT_ATOM_ON_SUCCESS_OF:
|
||||
return UNIT_ON_SUCCESS_OF;
|
||||
|
||||
case UNIT_ATOM_ON_FAILURE_OF:
|
||||
return UNIT_ON_FAILURE_OF;
|
||||
|
||||
case UNIT_ATOM_BEFORE:
|
||||
return UNIT_BEFORE;
|
||||
|
||||
@ -66,27 +66,22 @@ typedef enum UnitDependencyAtom {
|
||||
/* Recheck default target deps on other units (which are target units) */
|
||||
UNIT_ATOM_DEFAULT_TARGET_DEPENDENCIES = UINT64_C(1) << 21,
|
||||
|
||||
/* Dependencies which include this atom automatically get a reverse
|
||||
* REFERENCES/REFERENCED_BY dependency. */
|
||||
UNIT_ATOM_BACK_REFERENCE_IMPLIED = UINT64_C(1) << 22,
|
||||
|
||||
/* Trigger a dependency on successful service exit. */
|
||||
UNIT_ATOM_ON_SUCCESS = UINT64_C(1) << 23,
|
||||
/* Trigger a dependency on unsuccessful service exit. */
|
||||
UNIT_ATOM_ON_FAILURE = UINT64_C(1) << 24,
|
||||
|
||||
/* The remaining atoms map 1:1 to the equally named high-level deps */
|
||||
UNIT_ATOM_BEFORE = UINT64_C(1) << 25,
|
||||
UNIT_ATOM_AFTER = UINT64_C(1) << 26,
|
||||
UNIT_ATOM_TRIGGERS = UINT64_C(1) << 27,
|
||||
UNIT_ATOM_TRIGGERED_BY = UINT64_C(1) << 28,
|
||||
UNIT_ATOM_PROPAGATES_RELOAD_TO = UINT64_C(1) << 29,
|
||||
UNIT_ATOM_JOINS_NAMESPACE_OF = UINT64_C(1) << 30,
|
||||
UNIT_ATOM_REFERENCES = UINT64_C(1) << 31,
|
||||
UNIT_ATOM_REFERENCED_BY = UINT64_C(1) << 32,
|
||||
UNIT_ATOM_IN_SLICE = UINT64_C(1) << 33,
|
||||
UNIT_ATOM_SLICE_OF = UINT64_C(1) << 34,
|
||||
_UNIT_DEPENDENCY_ATOM_MAX = (UINT64_C(1) << 35) - 1,
|
||||
UNIT_ATOM_ON_FAILURE = UINT64_C(1) << 22,
|
||||
UNIT_ATOM_ON_SUCCESS = UINT64_C(1) << 23,
|
||||
UNIT_ATOM_ON_FAILURE_OF = UINT64_C(1) << 24,
|
||||
UNIT_ATOM_ON_SUCCESS_OF = UINT64_C(1) << 25,
|
||||
UNIT_ATOM_BEFORE = UINT64_C(1) << 26,
|
||||
UNIT_ATOM_AFTER = UINT64_C(1) << 27,
|
||||
UNIT_ATOM_TRIGGERS = UINT64_C(1) << 28,
|
||||
UNIT_ATOM_TRIGGERED_BY = UINT64_C(1) << 29,
|
||||
UNIT_ATOM_PROPAGATES_RELOAD_TO = UINT64_C(1) << 30,
|
||||
UNIT_ATOM_JOINS_NAMESPACE_OF = UINT64_C(1) << 31,
|
||||
UNIT_ATOM_REFERENCES = UINT64_C(1) << 32,
|
||||
UNIT_ATOM_REFERENCED_BY = UINT64_C(1) << 33,
|
||||
UNIT_ATOM_IN_SLICE = UINT64_C(1) << 34,
|
||||
UNIT_ATOM_SLICE_OF = UINT64_C(1) << 35,
|
||||
_UNIT_DEPENDENCY_ATOM_MAX = (UINT64_C(1) << 36) - 1,
|
||||
_UNIT_DEPENDENCY_ATOM_INVALID = -EINVAL,
|
||||
} UnitDependencyAtom;
|
||||
|
||||
|
||||
@ -2222,24 +2222,17 @@ void unit_start_on_failure(
|
||||
|
||||
UNIT_FOREACH_DEPENDENCY(other, u, atom) {
|
||||
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
|
||||
Job *job = NULL;
|
||||
|
||||
if (!logged) {
|
||||
log_unit_info(u, "Triggering %s dependencies.", dependency_name);
|
||||
logged = true;
|
||||
}
|
||||
|
||||
r = manager_add_job(u->manager, JOB_START, other, job_mode, NULL, &error, &job);
|
||||
r = manager_add_job(u->manager, JOB_START, other, job_mode, NULL, &error, NULL);
|
||||
if (r < 0)
|
||||
log_unit_warning_errno(
|
||||
u, r, "Failed to enqueue %s job, ignoring: %s",
|
||||
dependency_name, bus_error_message(&error, r));
|
||||
else if (job)
|
||||
/* u will be kept pinned since both UNIT_ON_FAILURE and UNIT_ON_SUCCESS includes
|
||||
* UNIT_ATOM_BACK_REFERENCE_IMPLIED. We save the triggering unit here since we
|
||||
* want to be able to reference it when we come to run the OnFailure= or OnSuccess=
|
||||
* dependency. */
|
||||
job_add_triggering_unit(job, u);
|
||||
}
|
||||
|
||||
if (logged)
|
||||
@ -3121,20 +3114,6 @@ int unit_add_dependency(
|
||||
noop = false;
|
||||
}
|
||||
|
||||
if (FLAGS_SET(a, UNIT_ATOM_BACK_REFERENCE_IMPLIED)) {
|
||||
r = unit_add_dependency_hashmap(&other->dependencies, UNIT_REFERENCES, u, 0, mask);
|
||||
if (r < 0)
|
||||
return r;
|
||||
if (r)
|
||||
noop = false;
|
||||
|
||||
r = unit_add_dependency_hashmap(&u->dependencies, UNIT_REFERENCED_BY, other, 0, mask);
|
||||
if (r < 0)
|
||||
return r;
|
||||
if (r)
|
||||
noop = false;
|
||||
}
|
||||
|
||||
if (add_reference) {
|
||||
r = unit_add_dependency_hashmap(&u->dependencies, UNIT_REFERENCES, other, mask, 0);
|
||||
if (r < 0)
|
||||
|
||||
@ -242,9 +242,6 @@ typedef struct Unit {
|
||||
/* Queue of units that have a BindTo= dependency on some other unit, and should possibly be shut down */
|
||||
LIST_FIELDS(Unit, stop_when_bound_queue);
|
||||
|
||||
/* Queue of units which have triggered an OnFailure= or OnSuccess= dependency job. */
|
||||
LIST_FIELDS(Unit, triggered_by);
|
||||
|
||||
/* PIDs we keep an eye on. Note that a unit might have many
|
||||
* more, but these are the ones we care enough about to
|
||||
* process SIGCHLD for */
|
||||
|
||||
@ -223,6 +223,7 @@ int main(int argc, char *argv[]) {
|
||||
assert_se(unit_add_dependency_by_name(stub, UNIT_AFTER, SPECIAL_ROOT_SLICE, true, UNIT_DEPENDENCY_FILE) >= 0);
|
||||
assert_se(unit_add_dependency_by_name(stub, UNIT_REQUIRES, "non-existing.mount", true, UNIT_DEPENDENCY_FILE) >= 0);
|
||||
assert_se(unit_add_dependency_by_name(stub, UNIT_ON_FAILURE, "non-existing-on-failure.target", true, UNIT_DEPENDENCY_FILE) >= 0);
|
||||
assert_se(unit_add_dependency_by_name(stub, UNIT_ON_SUCCESS, "non-existing-on-success.target", true, UNIT_DEPENDENCY_FILE) >= 0);
|
||||
|
||||
log_info("/* Merging a+stub, dumps before */");
|
||||
unit_dump(a, stderr, NULL);
|
||||
@ -237,7 +238,13 @@ int main(int argc, char *argv[]) {
|
||||
assert_se(unit_has_dependency(a, UNIT_ATOM_PULL_IN_START, manager_get_unit(m, "non-existing.mount")));
|
||||
assert_se(unit_has_dependency(a, UNIT_ATOM_RETROACTIVE_START_REPLACE, manager_get_unit(m, "non-existing.mount")));
|
||||
assert_se(unit_has_dependency(a, UNIT_ATOM_ON_FAILURE, manager_get_unit(m, "non-existing-on-failure.target")));
|
||||
assert_se(unit_has_dependency(manager_get_unit(m, "non-existing-on-failure.target"), UNIT_ATOM_ON_FAILURE_OF, a));
|
||||
assert_se(unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS, manager_get_unit(m, "non-existing-on-success.target")));
|
||||
assert_se(unit_has_dependency(manager_get_unit(m, "non-existing-on-success.target"), UNIT_ATOM_ON_SUCCESS_OF, a));
|
||||
assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_FAILURE, manager_get_unit(m, "basic.target")));
|
||||
assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS, manager_get_unit(m, "basic.target")));
|
||||
assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_FAILURE_OF, manager_get_unit(m, "basic.target")));
|
||||
assert_se(!unit_has_dependency(a, UNIT_ATOM_ON_SUCCESS_OF, manager_get_unit(m, "basic.target")));
|
||||
assert_se(!unit_has_dependency(a, UNIT_ATOM_PROPAGATES_RELOAD_TO, manager_get_unit(m, "non-existing-on-failure.target")));
|
||||
|
||||
assert_se(unit_has_name(a, "a.service"));
|
||||
|
||||
@ -36,16 +36,6 @@ OnFailure=testservice-failure-exit-handler-68.service
|
||||
ExecStart=/bin/bash -c "exit 1"
|
||||
EOF
|
||||
|
||||
# Another service which triggers testservice-failure-exit-handler-68.service
|
||||
cat >/run/systemd/system/testservice-failure-68-additional.service <<EOF
|
||||
[Unit]
|
||||
Description=TEST-68-PROPAGATE-EXIT-STATUS Additional service with OnFailure= trigger
|
||||
OnFailure=testservice-failure-exit-handler-68.service
|
||||
|
||||
[Service]
|
||||
ExecStart=/bin/bash -c "exit 1"
|
||||
EOF
|
||||
|
||||
# Trigger testservice-success-exit-handler-68.service
|
||||
cat >/run/systemd/system/testservice-success-68.service <<EOF
|
||||
[Unit]
|
||||
@ -56,67 +46,37 @@ OnSuccess=testservice-success-exit-handler-68.service
|
||||
ExecStart=/bin/bash -c "exit 0"
|
||||
EOF
|
||||
|
||||
# Trigger testservice-success-exit-handler-68.service
|
||||
cat >/run/systemd/system/testservice-success-68-additional.service <<EOF
|
||||
[Unit]
|
||||
Description=TEST-68-PROPAGATE-EXIT-STATUS Addition service with OnSuccess= trigger
|
||||
OnSuccess=testservice-success-exit-handler-68.service
|
||||
|
||||
[Service]
|
||||
ExecStart=/bin/bash -c "exit 0"
|
||||
EOF
|
||||
|
||||
# Script to check that when an OnSuccess= dependency fires, the correct
|
||||
# MONITOR* env variables are passed. This script handles the case where
|
||||
# multiple services triggered the unit that calls this script. In this
|
||||
# case we need to check the MONITOR_METADATA variable for >= 1 service
|
||||
# details since jobs may merge.
|
||||
# MONITOR* env variables are passed.
|
||||
cat >/tmp/check_on_success.sh <<EOF
|
||||
#!/usr/bin/env bash
|
||||
|
||||
set -ex
|
||||
env
|
||||
if [ "\$MONITOR_SERVICE_RESULT" != "success" ]; then
|
||||
echo "MONITOR_SERVICE_RESULT was \"\$MONITOR_SERVICE_RESULT\", expected \"success\"";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
echo "MONITOR_METADATA=\$MONITOR_METADATA"
|
||||
if [ "\$MONITOR_EXIT_CODE" != "exited" ]; then
|
||||
echo "MONITOR_EXIT_CODE was \"\$MONITOR_EXIT_CODE\", expected \"exited\"";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
IFS=';' read -ra ALL_SERVICE_MD <<< "\$MONITOR_METADATA"
|
||||
for SERVICE_MD in "\${ALL_SERVICE_MD[@]}"; do
|
||||
IFS=',' read -ra METADATA <<< "\$SERVICE_MD"
|
||||
IFS='=' read -ra SERVICE_RESULT <<< "\${METADATA[0]}"
|
||||
SERVICE_RESULT=\${SERVICE_RESULT[1]}
|
||||
IFS='=' read -ra EXIT_CODE <<< "\${METADATA[1]}"
|
||||
EXIT_CODE=\${EXIT_CODE[1]}
|
||||
IFS='=' read -ra EXIT_STATUS <<< "\${METADATA[2]}"
|
||||
EXIT_STATUS=\${EXIT_STATUS[1]}
|
||||
IFS='=' read -ra INVOCATION_ID <<< "\${METADATA[3]}"
|
||||
INVOCATION_ID=\${INVOCATION_ID[1]}
|
||||
IFS='=' read -ra UNIT <<< "\${METADATA[4]}"
|
||||
UNIT=\${UNIT[1]}
|
||||
if [ "\$MONITOR_EXIT_STATUS" != "0" ]; then
|
||||
echo "MONITOR_EXIT_STATUS was \"\$MONITOR_EXIT_STATUS\", expected \"0\"";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [ "\$SERVICE_RESULT" != "success" ]; then
|
||||
echo 'SERVICE_RESULT was "\$SERVICE_RESULT", expected "success"';
|
||||
exit 1;
|
||||
fi
|
||||
if [ -z "\$MONITOR_INVOCATION_ID" ]; then
|
||||
echo "MONITOR_INVOCATION_ID unset";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [ "\$EXIT_CODE" != "exited" ]; then
|
||||
echo 'EXIT_CODE was "\$EXIT_CODE", expected "exited"';
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [ "\$EXIT_STATUS" != "0" ]; then
|
||||
echo 'EXIT_STATUS was "\$EXIT_STATUS", expected "0"';
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [ -z "\$INVOCATION_ID" ]; then
|
||||
echo 'INVOCATION_ID unset';
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [[ "\$UNIT" != "testservice-success-68.service" && "\$UNIT" != "testservice-success-68-additional.service" && "\$UNIT" != "testservice-transient-success-68.service" ]]; then
|
||||
echo 'UNIT was "\$UNIT", expected "testservice-success-68{-additional,-transient}.service"';
|
||||
exit 1;
|
||||
fi
|
||||
done
|
||||
if [[ "\$MONITOR_UNIT" != "testservice-success-68.service" && "\$MONITOR_UNIT" != "testservice-transient-success-68.service" ]]; then
|
||||
echo "MONITOR_UNIT was \"\$MONITOR_UNIT\", expected \"testservice-success-68{-transient}.service\"";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
exit 0;
|
||||
EOF
|
||||
@ -133,56 +93,36 @@ ExecStart=/tmp/check_on_success.sh
|
||||
EOF
|
||||
|
||||
# Script to check that when an OnFailure= dependency fires, the correct
|
||||
# MONITOR* env variables are passed. This script handles the case where
|
||||
# multiple services triggered the unit that calls this script. In this
|
||||
# case we need to check the MONITOR_METADATA variable for >=1 service
|
||||
# details since jobs may merge.
|
||||
# MONITOR* env variables are passed.
|
||||
cat >/tmp/check_on_failure.sh <<EOF
|
||||
#!/usr/bin/env bash
|
||||
|
||||
set -ex
|
||||
env
|
||||
if [ "\$MONITOR_SERVICE_RESULT" != "exit-code" ]; then
|
||||
echo "MONITOR_SERVICE_RESULT was \"\$MONITOR_SERVICE_RESULT\", expected \"exit-code\"";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
echo "MONITOR_METADATA=\$MONITOR_METADATA"
|
||||
if [ "\$MONITOR_EXIT_CODE" != "exited" ]; then
|
||||
echo "MONITOR_EXIT_CODE was \"\$MONITOR_EXIT_CODE\", expected \"exited\"";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
IFS=';' read -ra ALL_SERVICE_MD <<< "\$MONITOR_METADATA"
|
||||
for SERVICE_MD in "\${ALL_SERVICE_MD[@]}"; do
|
||||
IFS=',' read -ra METADATA <<< "\$SERVICE_MD"
|
||||
IFS='=' read -ra SERVICE_RESULT <<< "\${METADATA[0]}"
|
||||
SERVICE_RESULT=\${SERVICE_RESULT[1]}
|
||||
IFS='=' read -ra EXIT_CODE <<< "\${METADATA[1]}"
|
||||
EXIT_CODE=\${EXIT_CODE[1]}
|
||||
IFS='=' read -ra EXIT_STATUS <<< "\${METADATA[2]}"
|
||||
EXIT_STATUS=\${EXIT_STATUS[1]}
|
||||
IFS='=' read -ra INVOCATION_ID <<< "\${METADATA[3]}"
|
||||
INVOCATION_ID=\${INVOCATION_ID[1]}
|
||||
IFS='=' read -ra UNIT <<< "\${METADATA[4]}"
|
||||
UNIT=\${UNIT[1]}
|
||||
if [ "\$MONITOR_EXIT_STATUS" != "1" ]; then
|
||||
echo "MONITOR_EXIT_STATUS was \"\$MONITOR_EXIT_STATUS\", expected \"1\"";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [ "\$SERVICE_RESULT" != "exit-code" ]; then
|
||||
echo 'SERVICE_RESULT was "\$SERVICE_RESULT", expected "exit-code"';
|
||||
exit 1;
|
||||
fi
|
||||
if [ -z "\$MONITOR_INVOCATION_ID" ]; then
|
||||
echo "MONITOR_INVOCATION_ID unset";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [ "\$EXIT_CODE" != "exited" ]; then
|
||||
echo 'EXIT_CODE was "\$EXIT_CODE", expected "exited"';
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [ "\$EXIT_STATUS" != "1" ]; then
|
||||
echo 'EXIT_STATUS was "\$EXIT_STATUS", expected "1"';
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [ -z "\$INVOCATION_ID" ]; then
|
||||
echo 'INVOCATION_ID unset';
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
if [[ "\$UNIT" != "testservice-failure-68.service" && "\$UNIT" != "testservice-failure-68-additional.service" && "\$UNIT" != "testservice-transient-failure-68.service" ]]; then
|
||||
echo 'UNIT was "\$UNIT", expected "testservice-failure-68{-additional,-transient}.service"';
|
||||
exit 1;
|
||||
fi
|
||||
done
|
||||
if [[ "\$MONITOR_UNIT" != "testservice-failure-68.service" && "\$MONITOR_UNIT" != "testservice-transient-failure-68.service" ]]; then
|
||||
echo "MONITOR_UNIT was \"\$MONITOR_UNIT\", expected \"testservice-failure-68{-transient}.service\"";
|
||||
exit 1;
|
||||
fi
|
||||
|
||||
exit 0;
|
||||
EOF
|
||||
@ -201,16 +141,10 @@ EOF
|
||||
|
||||
systemctl daemon-reload
|
||||
|
||||
# The running of the OnFailure= and OnSuccess= jobs for all of these services
|
||||
# may result in jobs being merged.
|
||||
systemctl start testservice-failure-68.service
|
||||
wait_on_state_or_fail "testservice-failure-exit-handler-68.service" "inactive" "10"
|
||||
systemctl start testservice-failure-68-additional.service
|
||||
wait_on_state_or_fail "testservice-failure-exit-handler-68.service" "inactive" "10"
|
||||
systemctl start testservice-success-68.service
|
||||
wait_on_state_or_fail "testservice-success-exit-handler-68.service" "inactive" "10"
|
||||
systemctl start testservice-success-68-additional.service
|
||||
wait_on_state_or_fail "testservice-success-exit-handler-68.service" "inactive" "10"
|
||||
|
||||
# Test some transient units since these exit very quickly.
|
||||
systemd-run --unit=testservice-transient-success-68 --property=OnSuccess=testservice-success-exit-handler-68.service /bin/bash -c "exit 0;"
|
||||
@ -218,12 +152,6 @@ wait_on_state_or_fail "testservice-success-exit-handler-68.service" "inactive" "
|
||||
systemd-run --unit=testservice-transient-failure-68 --property=OnFailure=testservice-failure-exit-handler-68.service /bin/bash -c "exit 1;"
|
||||
wait_on_state_or_fail "testservice-failure-exit-handler-68.service" "inactive" "10"
|
||||
|
||||
# These yield a higher chance of resulting in jobs merging.
|
||||
systemctl start testservice-failure-68.service testservice-failure-68-additional.service --no-block
|
||||
wait_on_state_or_fail "testservice-failure-exit-handler-68.service" "inactive" "10"
|
||||
systemctl start testservice-success-68.service testservice-success-68-additional.service --no-block
|
||||
wait_on_state_or_fail "testservice-success-exit-handler-68.service" "inactive" "10"
|
||||
|
||||
systemd-analyze log-level info
|
||||
echo OK >/testok
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user