main: acquire console before execing crash shell

[elogind.git] / job.c

diff --git a/job.c b/job.c
index 4784d9c05dbc200ae81853b9b026129690b0af8b..1d59bcb27f7d99504a3bfbfed9b305e0eca32214 100644 (file)
--- a/job.c
+++ b/job.c
@@ -29,6 +29,7 @@
 #include "load-fragment.h"
 #include "load-dropin.h"
 #include "log.h"
+#include "dbus-job.h"
 
 Job* job_new(Manager *m, JobType type, Unit *unit) {
         Job *j;
@@ -55,15 +56,25 @@ void job_free(Job *j) {
 
         /* Detach from next 'bigger' objects */
         if (j->installed) {
-                if (j->unit->meta.job == j)
+                bus_job_send_removed_signal(j);
+
+                if (j->unit->meta.job == j) {
                         j->unit->meta.job = NULL;
+                        unit_add_to_gc_queue(j->unit);
+                }
 
                 hashmap_remove(j->manager->jobs, UINT32_TO_PTR(j->id));
                 j->installed = false;
         }
 
         /* Detach from next 'smaller' objects */
-        manager_transaction_unlink_job(j->manager, j);
+        manager_transaction_unlink_job(j->manager, j, true);
+
+        if (j->in_run_queue)
+                LIST_REMOVE(Job, run_queue, j->manager->run_queue, j);
+
+        if (j->in_dbus_queue)
+                LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
 
         free(j);
 }
@@ -139,14 +150,14 @@ void job_dump(Job *j, FILE*f, const char *prefix) {
         assert(f);
 
         fprintf(f,
-                "%s→ Job %u:\n"
-                "%s\tAction: %s → %s\n"
+                "%s-> Job %u:\n"
+                "%s\tAction: %s -> %s\n"
                 "%s\tState: %s\n"
                 "%s\tForced: %s\n",
                 prefix, j->id,
-                prefix, unit_id(j->unit), job_type_to_string(j->type),
+                prefix, j->unit->meta.id, job_type_to_string(j->type),
                 prefix, job_state_to_string(j->state),
-                prefix, yes_no(j->forced));
+                prefix, yes_no(j->override));
 }
 
 bool job_is_anchor(Job *j) {
@@ -257,6 +268,45 @@ bool job_type_is_conflicting(JobType a, JobType b) {
         return (a == JOB_STOP) != (b == JOB_STOP);
 }
 
+bool job_type_is_redundant(JobType a, UnitActiveState b) {
+        switch (a) {
+
+        case JOB_START:
+                return
+                        b == UNIT_ACTIVE ||
+                        b == UNIT_ACTIVE_RELOADING;
+
+        case JOB_STOP:
+                return
+                        b == UNIT_INACTIVE;
+
+        case JOB_VERIFY_ACTIVE:
+                return
+                        b == UNIT_ACTIVE ||
+                        b == UNIT_ACTIVE_RELOADING;
+
+        case JOB_RELOAD:
+                return
+                        b == UNIT_ACTIVE_RELOADING;
+
+        case JOB_RELOAD_OR_START:
+                return
+                        b == UNIT_ACTIVATING ||
+                        b == UNIT_ACTIVE_RELOADING;
+
+        case JOB_RESTART:
+                return
+                        b == UNIT_ACTIVATING;
+
+        case JOB_TRY_RESTART:
+                return
+                        b == UNIT_ACTIVATING;
+
+        default:
+                assert_not_reached("Invalid job type");
+        }
+}
+
 bool job_is_runnable(Job *j) {
         Iterator i;
         Unit *other;
@@ -326,6 +376,7 @@ int job_run_and_invalidate(Job *j) {
                 return -EAGAIN;
 
         j->state = JOB_RUNNING;
+        job_add_to_dbus_queue(j);
 
         switch (j->type) {
 
@@ -401,25 +452,26 @@ int job_run_and_invalidate(Job *j) {
 int job_finish_and_invalidate(Job *j, bool success) {
         Unit *u;
         Unit *other;
-        UnitType t;
+        JobType t;
         Iterator i;
 
         assert(j);
         assert(j->installed);
 
-        log_debug("Job %s/%s finished, success=%s", unit_id(j->unit), job_type_to_string(j->type), yes_no(success));
+        log_debug("Job %s/%s finished, success=%s", j->unit->meta.id, job_type_to_string(j->type), yes_no(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)) {
 
-                log_debug("Converting job %s/%s → %s/%s",
-                          unit_id(j->unit), job_type_to_string(j->type),
-                          unit_id(j->unit), job_type_to_string(JOB_START));
+                log_debug("Converting job %s/%s -> %s/%s",
+                          j->unit->meta.id, job_type_to_string(j->type),
+                          j->unit->meta.id, job_type_to_string(JOB_START));
 
                 j->state = JOB_RUNNING;
                 j->type = JOB_START;
 
-                job_schedule_run(j);
+                job_add_to_run_queue(j);
                 return 0;
         }
 
@@ -436,26 +488,26 @@ int job_finish_and_invalidate(Job *j, bool success) {
 
                         SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY], i)
                                 if (other->meta.job &&
-                                    (other->meta.type == JOB_START ||
-                                     other->meta.type == JOB_VERIFY_ACTIVE ||
-                                     other->meta.type == JOB_RELOAD_OR_START))
+                                    (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);
 
-                        SET_FOREACH(other, u->meta.dependencies[UNIT_SOFT_REQUIRED_BY], i)
+                        SET_FOREACH(other, u->meta.dependencies[UNIT_REQUIRED_BY_OVERRIDABLE], i)
                                 if (other->meta.job &&
-                                    !other->meta.job->forced &&
-                                    (other->meta.type == JOB_START ||
-                                     other->meta.type == JOB_VERIFY_ACTIVE ||
-                                     other->meta.type == JOB_RELOAD_OR_START))
+                                    !other->meta.job->override &&
+                                    (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);
 
                 } else if (t == JOB_STOP) {
 
                         SET_FOREACH(other, u->meta.dependencies[UNIT_CONFLICTS], i)
                                 if (other->meta.job &&
-                                    (t == JOB_START ||
-                                     t == JOB_VERIFY_ACTIVE ||
-                                     t == JOB_RELOAD_OR_START))
+                                    (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);
                 }
         }
@@ -463,15 +515,15 @@ int job_finish_and_invalidate(Job *j, bool success) {
         /* Try to start the next jobs that can be started */
         SET_FOREACH(other, u->meta.dependencies[UNIT_AFTER], i)
                 if (other->meta.job)
-                        job_schedule_run(other->meta.job);
+                        job_add_to_run_queue(other->meta.job);
         SET_FOREACH(other, u->meta.dependencies[UNIT_BEFORE], i)
                 if (other->meta.job)
-                        job_schedule_run(other->meta.job);
+                        job_add_to_run_queue(other->meta.job);
 
         return 0;
 }
 
-void job_schedule_run(Job *j) {
+void job_add_to_run_queue(Job *j) {
         assert(j);
         assert(j->installed);
 
@@ -482,6 +534,17 @@ void job_schedule_run(Job *j) {
         j->in_run_queue = true;
 }
 
+void job_add_to_dbus_queue(Job *j) {
+        assert(j);
+        assert(j->installed);
+
+        if (j->in_dbus_queue)
+                return;
+
+        LIST_PREPEND(Job, dbus_queue, j->manager->dbus_job_queue, j);
+        j->in_dbus_queue = true;
+}
+
 char *job_dbus_path(Job *j) {
         char *p;
 
@@ -514,7 +577,8 @@ 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] = "replace",
+        [JOB_ISOLATE] = "isolate"
 };
 
 DEFINE_STRING_TABLE_LOOKUP(job_mode, JobMode);