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authorLennart Poettering <lennart@poettering.net>2014-11-06 13:43:45 +0100
committerLennart Poettering <lennart@poettering.net>2014-11-06 14:21:11 +0100
commit59fccdc587bc179c1638916ee16a24099f94f81f (patch)
tree65e65016e68023b5ff9d5d4327e1abc06ffd3756 /src/core/unit.c
parentcc50ef134b4104cae8783a4ca40b1a70247e3ef9 (diff)
core: introduce the concept of AssertXYZ= similar to ConditionXYZ=, but fatal for a start job if not met
Diffstat (limited to 'src/core/unit.c')
-rw-r--r--src/core/unit.c53
1 files changed, 48 insertions, 5 deletions
diff --git a/src/core/unit.c b/src/core/unit.c
index d5acc728ec..66f53ddc7c 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -527,6 +527,7 @@ void unit_free(Unit *u) {
unit_unwatch_all_pids(u);
condition_free_list(u->conditions);
+ condition_free_list(u->asserts);
unit_ref_unset(&u->slice);
@@ -929,7 +930,8 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) {
if (u->job_timeout_reboot_arg)
fprintf(f, "%s\tJob Timeout Reboot Argument: %s\n", prefix, u->job_timeout_reboot_arg);
- condition_dump_list(u->conditions, f, prefix);
+ condition_dump_list(u->conditions, f, prefix, condition_type_to_string);
+ condition_dump_list(u->asserts, f, prefix, assert_type_to_string);
if (dual_timestamp_is_set(&u->condition_timestamp))
fprintf(f,
@@ -938,6 +940,13 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) {
prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->condition_timestamp.realtime)),
prefix, yes_no(u->condition_result));
+ if (dual_timestamp_is_set(&u->assert_timestamp))
+ fprintf(f,
+ "%s\tAssert Timestamp: %s\n"
+ "%s\tAssert Result: %s\n",
+ prefix, strna(format_timestamp(timestamp1, sizeof(timestamp1), u->assert_timestamp.realtime)),
+ prefix, yes_no(u->assert_result));
+
for (d = 0; d < _UNIT_DEPENDENCY_MAX; d++) {
Unit *other;
@@ -1240,11 +1249,20 @@ static bool unit_condition_test(Unit *u) {
assert(u);
dual_timestamp_get(&u->condition_timestamp);
- u->condition_result = condition_test_list(u->id, u->conditions);
+ u->condition_result = condition_test_list(u->id, u->conditions, condition_type_to_string);
return u->condition_result;
}
+static bool unit_assert_test(Unit *u) {
+ assert(u);
+
+ dual_timestamp_get(&u->assert_timestamp);
+ u->assert_result = condition_test_list(u->id, u->asserts, assert_type_to_string);
+
+ return u->assert_result;
+}
+
_pure_ static const char* unit_get_status_message_format(Unit *u, JobType t) {
const UnitStatusMessageFormats *format_table;
@@ -1341,6 +1359,7 @@ static void unit_status_log_starting_stopping_reloading(Unit *u, JobType t) {
* -EALREADY: Unit is already started.
* -EAGAIN: An operation is already in progress. Retry later.
* -ECANCELED: Too many requests for now.
+ * -EPROTO: Assert failed
*/
int unit_start(Unit *u) {
UnitActiveState state;
@@ -1365,15 +1384,21 @@ int unit_start(Unit *u) {
* but we don't want to recheck the condition in that case. */
if (state != UNIT_ACTIVATING &&
!unit_condition_test(u)) {
- log_debug_unit(u->id, "Starting of %s requested but condition failed. Ignoring.", u->id);
+ log_debug_unit(u->id, "Starting of %s requested but condition failed. Not starting unit.", u->id);
return -EALREADY;
}
+ /* If the asserts failed, fail the entire job */
+ if (state != UNIT_ACTIVATING &&
+ !unit_assert_test(u)) {
+ log_debug_unit(u->id, "Starting of %s requested but asserts failed.", u->id);
+ return -EPROTO;
+ }
+
/* Forward to the main object, if we aren't it. */
following = unit_following(u);
if (following) {
- log_debug_unit(u->id, "Redirecting start request from %s to %s.",
- u->id, following->id);
+ log_debug_unit(u->id, "Redirecting start request from %s to %s.", u->id, following->id);
return unit_start(following);
}
@@ -2502,10 +2527,14 @@ int unit_serialize(Unit *u, FILE *f, FDSet *fds, bool serialize_jobs) {
dual_timestamp_serialize(f, "active-exit-timestamp", &u->active_exit_timestamp);
dual_timestamp_serialize(f, "inactive-enter-timestamp", &u->inactive_enter_timestamp);
dual_timestamp_serialize(f, "condition-timestamp", &u->condition_timestamp);
+ dual_timestamp_serialize(f, "assert-timestamp", &u->assert_timestamp);
if (dual_timestamp_is_set(&u->condition_timestamp))
unit_serialize_item(u, f, "condition-result", yes_no(u->condition_result));
+ if (dual_timestamp_is_set(&u->assert_timestamp))
+ unit_serialize_item(u, f, "assert-result", yes_no(u->assert_result));
+
unit_serialize_item(u, f, "transient", yes_no(u->transient));
if (u->cgroup_path)
@@ -2645,6 +2674,9 @@ int unit_deserialize(Unit *u, FILE *f, FDSet *fds) {
} else if (streq(l, "condition-timestamp")) {
dual_timestamp_deserialize(v, &u->condition_timestamp);
continue;
+ } else if (streq(l, "assert-timestamp")) {
+ dual_timestamp_deserialize(v, &u->assert_timestamp);
+ continue;
} else if (streq(l, "condition-result")) {
int b;
@@ -2656,6 +2688,17 @@ int unit_deserialize(Unit *u, FILE *f, FDSet *fds) {
continue;
+ } else if (streq(l, "assert-result")) {
+ int b;
+
+ b = parse_boolean(v);
+ if (b < 0)
+ log_debug("Failed to parse assert result value %s", v);
+ else
+ u->assert_result = b;
+
+ continue;
+
} else if (streq(l, "transient")) {
int b;