chiark / gitweb /
manager: don't do plymouth in a container
[elogind.git] / src / core / transaction.c
index 4a8d90e6e569692c14f5890eae89ad69033a0cc3..e2ff0bd1e5986fe0af05d4c9b0eeb06fe9150103 100644 (file)
 #include <unistd.h>
 #include <fcntl.h>
 
-#include "transaction.h"
 #include "bus-errors.h"
+#include "bus-util.h"
+#include "bus-error.h"
+#include "transaction.h"
 
 static void transaction_unlink_job(Transaction *tr, Job *j, bool delete_dependencies);
 
@@ -139,7 +141,7 @@ static void transaction_merge_and_delete_job(Transaction *tr, Job *j, Job *other
         transaction_delete_job(tr, other, true);
 }
 
-static bool job_is_conflicted_by(Job *j) {
+_pure_ static bool job_is_conflicted_by(Job *j) {
         JobDependency *l;
 
         assert(j);
@@ -230,7 +232,7 @@ static int delete_one_unmergeable_job(Transaction *tr, Job *j) {
         return -EINVAL;
 }
 
-static int transaction_merge_jobs(Transaction *tr, DBusError *e) {
+static int transaction_merge_jobs(Transaction *tr, sd_bus_error *e) {
         Job *j;
         Iterator i;
         int r;
@@ -260,8 +262,9 @@ static int transaction_merge_jobs(Transaction *tr, DBusError *e) {
                                 return -EAGAIN;
 
                         /* We couldn't merge anything. Failure */
-                        dbus_set_error(e, BUS_ERROR_TRANSACTION_JOBS_CONFLICTING, "Transaction contains conflicting jobs '%s' and '%s' for %s. Probably contradicting requirement dependencies configured.",
-                                       job_type_to_string(t), job_type_to_string(k->type), k->unit->id);
+                        sd_bus_error_setf(
+                                        e, BUS_ERROR_TRANSACTION_JOBS_CONFLICTING, "Transaction contains conflicting jobs '%s' and '%s' for %s. Probably contradicting requirement dependencies configured.",
+                                        job_type_to_string(t), job_type_to_string(k->type), k->unit->id);
                         return r;
                 }
         }
@@ -319,7 +322,7 @@ rescan:
         }
 }
 
-static bool unit_matters_to_anchor(Unit *u, Job *j) {
+_pure_ static bool unit_matters_to_anchor(Unit *u, Job *j) {
         assert(u);
         assert(!j->transaction_prev);
 
@@ -333,7 +336,7 @@ static bool unit_matters_to_anchor(Unit *u, Job *j) {
         return false;
 }
 
-static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsigned generation, DBusError *e) {
+static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsigned generation, sd_bus_error *e) {
         Iterator i;
         Unit *u;
         int r;
@@ -343,7 +346,7 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
         assert(!j->transaction_prev);
 
         /* Does a recursive sweep through the ordering graph, looking
-         * for a cycle. If we find cycle we try to break it. */
+         * for a cycle. If we find cycle we try to break it. */
 
         /* Have we seen this before? */
         if (j->generation == generation) {
@@ -370,7 +373,7 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
 
                         /* logging for j not k here here to provide consistent narrative */
                         log_info_unit(j->unit->id,
-                                      "Walked on cycle path to %s/%s",
+                                      "Found dependency on %s/%s",
                                       k->unit->id, job_type_to_string(k->type));
 
                         if (!delete &&
@@ -404,8 +407,8 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
 
                 log_error("Unable to break cycle");
 
-                dbus_set_error(e, BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC,
-                               "Transaction order is cyclic. See system logs for details.");
+                sd_bus_error_setf(e, BUS_ERROR_TRANSACTION_ORDER_IS_CYCLIC,
+                                  "Transaction order is cyclic. See system logs for details.");
                 return -ENOEXEC;
         }
 
@@ -444,7 +447,7 @@ static int transaction_verify_order_one(Transaction *tr, Job *j, Job *from, unsi
         return 0;
 }
 
-static int transaction_verify_order(Transaction *tr, unsigned *generation, DBusError *e) {
+static int transaction_verify_order(Transaction *tr, unsigned *generation, sd_bus_error *e) {
         Job *j;
         int r;
         Iterator i;
@@ -489,7 +492,7 @@ rescan:
         }
 }
 
-static int transaction_is_destructive(Transaction *tr, JobMode mode, DBusError *e) {
+static int transaction_is_destructive(Transaction *tr, JobMode mode, sd_bus_error *e) {
         Iterator i;
         Job *j;
 
@@ -507,7 +510,7 @@ static int transaction_is_destructive(Transaction *tr, JobMode mode, DBusError *
                 if (j->unit->job && (mode == JOB_FAIL || j->unit->job->irreversible) &&
                     !job_type_is_superset(j->type, j->unit->job->type)) {
 
-                        dbus_set_error(e, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE, "Transaction is destructive.");
+                        sd_bus_error_setf(e, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE, "Transaction is destructive.");
                         return -EEXIST;
                 }
         }
@@ -634,7 +637,7 @@ rollback:
         return r;
 }
 
-int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e) {
+int transaction_activate(Transaction *tr, Manager *m, JobMode mode, sd_bus_error *e) {
         Iterator i;
         Job *j;
         int r;
@@ -676,7 +679,7 @@ int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e
                         break;
 
                 if (r != -EAGAIN) {
-                        log_warning("Requested transaction contains an unfixable cyclic ordering dependency: %s", bus_error(e, r));
+                        log_warning("Requested transaction contains an unfixable cyclic ordering dependency: %s", bus_error_message(e, r));
                         return r;
                 }
 
@@ -693,7 +696,7 @@ int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e
                         break;
 
                 if (r != -EAGAIN) {
-                        log_warning("Requested transaction contains unmergeable jobs: %s", bus_error(e, r));
+                        log_warning("Requested transaction contains unmergeable jobs: %s", bus_error_message(e, r));
                         return r;
                 }
 
@@ -712,7 +715,7 @@ int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e
         /* Ninth step: check whether we can actually apply this */
         r = transaction_is_destructive(tr, mode, e);
         if (r < 0) {
-                log_notice("Requested transaction contradicts existing jobs: %s", bus_error(e, r));
+                log_notice("Requested transaction contradicts existing jobs: %s", bus_error_message(e, r));
                 return r;
         }
 
@@ -732,8 +735,11 @@ int transaction_activate(Transaction *tr, Manager *m, JobMode mode, DBusError *e
                  * feature for cosmetics, not actually useful for
                  * anything beyond that. */
 
-                if (m->idle_pipe[0] < 0 && m->idle_pipe[1] < 0)
+                if (m->idle_pipe[0] < 0 && m->idle_pipe[1] < 0 &&
+                    m->idle_pipe[2] < 0 && m->idle_pipe[3] < 0) {
                         pipe2(m->idle_pipe, O_NONBLOCK|O_CLOEXEC);
+                        pipe2(m->idle_pipe + 2, O_NONBLOCK|O_CLOEXEC);
+                }
         }
 
         return 0;
@@ -771,10 +777,10 @@ static Job* transaction_add_one_job(Transaction *tr, JobType type, Unit *unit, b
         j->override = override;
         j->irreversible = tr->irreversible;
 
-        LIST_PREPEND(Job, transaction, f, j);
+        LIST_PREPEND(transaction, f, j);
 
         if (hashmap_replace(tr->jobs, unit, f) < 0) {
-                LIST_REMOVE(Job, transaction, f, j);
+                LIST_REMOVE(transaction, f, j);
                 job_free(j);
                 return NULL;
         }
@@ -831,7 +837,7 @@ int transaction_add_job_and_dependencies(
                 bool conflicts,
                 bool ignore_requirements,
                 bool ignore_order,
-                DBusError *e) {
+                sd_bus_error *e) {
         Job *ret;
         Iterator i;
         Unit *dep;
@@ -850,13 +856,14 @@ int transaction_add_job_and_dependencies(
 
         if (unit->load_state != UNIT_LOADED &&
             unit->load_state != UNIT_ERROR &&
+            unit->load_state != UNIT_NOT_FOUND &&
             unit->load_state != UNIT_MASKED) {
-                dbus_set_error(e, BUS_ERROR_LOAD_FAILED, "Unit %s is not loaded properly.", unit->id);
+                sd_bus_error_setf(e, BUS_ERROR_LOAD_FAILED, "Unit %s is not loaded properly.", unit->id);
                 return -EINVAL;
         }
 
         if (type != JOB_STOP && unit->load_state == UNIT_ERROR) {
-                dbus_set_error(e, BUS_ERROR_LOAD_FAILED,
+                sd_bus_error_setf(e, BUS_ERROR_LOAD_FAILED,
                                "Unit %s failed to load: %s. "
                                "See system logs and 'systemctl status %s' for details.",
                                unit->id,
@@ -865,13 +872,21 @@ int transaction_add_job_and_dependencies(
                 return -EINVAL;
         }
 
+        if (type != JOB_STOP && unit->load_state == UNIT_NOT_FOUND) {
+                sd_bus_error_setf(e, BUS_ERROR_LOAD_FAILED,
+                               "Unit %s failed to load: %s.",
+                               unit->id,
+                               strerror(-unit->load_error));
+                return -EINVAL;
+        }
+
         if (type != JOB_STOP && unit->load_state == UNIT_MASKED) {
-                dbus_set_error(e, BUS_ERROR_MASKED, "Unit %s is masked.", unit->id);
+                sd_bus_error_setf(e, BUS_ERROR_UNIT_MASKED, "Unit %s is masked.", unit->id);
                 return -EADDRNOTAVAIL;
         }
 
         if (!unit_job_is_applicable(unit, type)) {
-                dbus_set_error(e, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE, "Job type %s is not applicable for unit %s.", job_type_to_string(type), unit->id);
+                sd_bus_error_setf(e, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE, "Job type %s is not applicable for unit %s.", job_type_to_string(type), unit->id);
                 return -EBADR;
         }
 
@@ -903,10 +918,10 @@ int transaction_add_job_and_dependencies(
                                 if (r < 0) {
                                         log_warning_unit(dep->id,
                                                          "Cannot add dependency job for unit %s, ignoring: %s",
-                                                         dep->id, bus_error(e, r));
+                                                         dep->id, bus_error_message(e, r));
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -922,7 +937,7 @@ int transaction_add_job_and_dependencies(
                                                 goto fail;
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -933,7 +948,7 @@ int transaction_add_job_and_dependencies(
                                                 goto fail;
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -942,10 +957,10 @@ int transaction_add_job_and_dependencies(
                                 if (r < 0) {
                                         log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id,
                                                       "Cannot add dependency job for unit %s, ignoring: %s",
-                                                      dep->id, bus_error(e, r));
+                                                      dep->id, bus_error_message(e, r));
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -954,10 +969,10 @@ int transaction_add_job_and_dependencies(
                                 if (r < 0) {
                                         log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id,
                                                       "Cannot add dependency job for unit %s, ignoring: %s",
-                                                      dep->id, bus_error(e, r));
+                                                      dep->id, bus_error_message(e, r));
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -968,7 +983,7 @@ int transaction_add_job_and_dependencies(
                                                 goto fail;
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -977,10 +992,10 @@ int transaction_add_job_and_dependencies(
                                 if (r < 0) {
                                         log_full_unit(r == -EADDRNOTAVAIL ? LOG_DEBUG : LOG_WARNING, dep->id,
                                                       "Cannot add dependency job for unit %s, ignoring: %s",
-                                                      dep->id, bus_error(e, r));
+                                                      dep->id, bus_error_message(e, r));
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -991,7 +1006,7 @@ int transaction_add_job_and_dependencies(
                                                 goto fail;
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -1000,10 +1015,10 @@ int transaction_add_job_and_dependencies(
                                 if (r < 0) {
                                         log_warning_unit(dep->id,
                                                          "Cannot add dependency job for unit %s, ignoring: %s",
-                                                         dep->id, bus_error(e, r));
+                                                         dep->id, bus_error_message(e, r));
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -1018,7 +1033,7 @@ int transaction_add_job_and_dependencies(
                                                 goto fail;
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -1029,7 +1044,7 @@ int transaction_add_job_and_dependencies(
                                                 goto fail;
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -1040,7 +1055,7 @@ int transaction_add_job_and_dependencies(
                                                 goto fail;
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
 
@@ -1053,10 +1068,10 @@ int transaction_add_job_and_dependencies(
                                 if (r < 0) {
                                         log_warning_unit(dep->id,
                                                          "Cannot add dependency reload job for unit %s, ignoring: %s",
-                                                         dep->id, bus_error(e, r));
+                                                         dep->id, bus_error_message(e, r));
 
                                         if (e)
-                                                dbus_error_free(e);
+                                                sd_bus_error_free(e);
                                 }
                         }
                 }