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Diffstat (limited to 'src/core/path.c')
-rw-r--r--src/core/path.c99
1 files changed, 56 insertions, 43 deletions
diff --git a/src/core/path.c b/src/core/path.c
index 20995d920c..83f794be89 100644
--- a/src/core/path.c
+++ b/src/core/path.c
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
@@ -19,20 +17,26 @@
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
-#include <sys/inotify.h>
-#include <sys/epoll.h>
#include <errno.h>
+#include <sys/epoll.h>
+#include <sys/inotify.h>
#include <unistd.h>
-#include "unit.h"
-#include "unit-name.h"
-#include "path.h"
-#include "mkdir.h"
+#include "bus-error.h"
+#include "bus-util.h"
#include "dbus-path.h"
-#include "special.h"
+#include "fd-util.h"
+#include "fs-util.h"
+#include "glob-util.h"
#include "macro.h"
-#include "bus-util.h"
-#include "bus-error.h"
+#include "mkdir.h"
+#include "path.h"
+#include "special.h"
+#include "stat-util.h"
+#include "string-table.h"
+#include "string-util.h"
+#include "unit-name.h"
+#include "unit.h"
static const UnitActiveState state_translation_table[_PATH_STATE_MAX] = {
[PATH_DEAD] = UNIT_INACTIVE,
@@ -106,16 +110,14 @@ int path_spec_watch(PathSpec *s, sd_event_io_handler_t handler) {
} else {
exists = true;
- /* Path exists, we don't need to watch parent
- too closely. */
+ /* Path exists, we don't need to watch parent too closely. */
if (oldslash) {
char *cut2 = oldslash + (oldslash == s->path);
char tmp2 = *cut2;
*cut2 = '\0';
- inotify_add_watch(s->inotify_fd, s->path, IN_MOVE_SELF);
- /* Error is ignored, the worst can happen is
- we get spurious events. */
+ (void) inotify_add_watch(s->inotify_fd, s->path, IN_MOVE_SELF);
+ /* Error is ignored, the worst can happen is we get spurious events. */
*cut2 = tmp2;
}
@@ -309,20 +311,20 @@ static int path_add_default_dependencies(Path *p) {
assert(p);
- r = unit_add_dependency_by_name(UNIT(p), UNIT_BEFORE,
- SPECIAL_PATHS_TARGET, NULL, true);
+ if (!UNIT(p)->default_dependencies)
+ return 0;
+
+ r = unit_add_dependency_by_name(UNIT(p), UNIT_BEFORE, SPECIAL_PATHS_TARGET, NULL, true);
if (r < 0)
return r;
- if (UNIT(p)->manager->running_as == MANAGER_SYSTEM) {
- r = unit_add_two_dependencies_by_name(UNIT(p), UNIT_AFTER, UNIT_REQUIRES,
- SPECIAL_SYSINIT_TARGET, NULL, true);
+ if (MANAGER_IS_SYSTEM(UNIT(p)->manager)) {
+ r = unit_add_two_dependencies_by_name(UNIT(p), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true);
if (r < 0)
return r;
}
- return unit_add_two_dependencies_by_name(UNIT(p), UNIT_BEFORE, UNIT_CONFLICTS,
- SPECIAL_SHUTDOWN_TARGET, NULL, true);
+ return unit_add_two_dependencies_by_name(UNIT(p), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
}
static int path_load(Unit *u) {
@@ -354,11 +356,9 @@ static int path_load(Unit *u) {
if (r < 0)
return r;
- if (UNIT(p)->default_dependencies) {
- r = path_add_default_dependencies(p);
- if (r < 0)
- return r;
- }
+ r = path_add_default_dependencies(p);
+ if (r < 0)
+ return r;
}
return path_verify(p);
@@ -454,14 +454,15 @@ static int path_coldplug(Unit *u) {
static void path_enter_dead(Path *p, PathResult f) {
assert(p);
- if (f != PATH_SUCCESS)
+ if (p->result == PATH_SUCCESS)
p->result = f;
path_set_state(p, p->result != PATH_SUCCESS ? PATH_FAILED : PATH_DEAD);
}
static void path_enter_running(Path *p) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+ Unit *trigger;
int r;
assert(p);
@@ -470,8 +471,14 @@ static void path_enter_running(Path *p) {
if (unit_stop_pending(UNIT(p)))
return;
- r = manager_add_job(UNIT(p)->manager, JOB_START, UNIT_TRIGGER(UNIT(p)),
- JOB_REPLACE, true, &error, NULL);
+ trigger = UNIT_TRIGGER(UNIT(p));
+ if (!trigger) {
+ log_unit_error(UNIT(p), "Unit to trigger vanished.");
+ path_enter_dead(p, PATH_FAILURE_RESOURCES);
+ return;
+ }
+
+ r = manager_add_job(UNIT(p)->manager, JOB_START, trigger, JOB_REPLACE, &error, NULL);
if (r < 0)
goto fail;
@@ -552,12 +559,27 @@ static void path_mkdir(Path *p) {
static int path_start(Unit *u) {
Path *p = PATH(u);
+ Unit *trigger;
+ int r;
assert(p);
assert(p->state == PATH_DEAD || p->state == PATH_FAILED);
- if (UNIT_TRIGGER(u)->load_state != UNIT_LOADED)
+ trigger = UNIT_TRIGGER(u);
+ if (!trigger || trigger->load_state != UNIT_LOADED) {
+ log_unit_error(u, "Refusing to start, unit to trigger not loaded.");
return -ENOENT;
+ }
+
+ r = unit_start_limit_test(u);
+ if (r < 0) {
+ path_enter_dead(p, PATH_FAILURE_START_LIMIT_HIT);
+ return r;
+ }
+
+ r = unit_acquire_invocation_id(u);
+ if (r < 0)
+ return r;
path_mkdir(p);
@@ -715,15 +737,6 @@ static void path_reset_failed(Unit *u) {
p->result = PATH_SUCCESS;
}
-static const char* const path_state_table[_PATH_STATE_MAX] = {
- [PATH_DEAD] = "dead",
- [PATH_WAITING] = "waiting",
- [PATH_RUNNING] = "running",
- [PATH_FAILED] = "failed"
-};
-
-DEFINE_STRING_TABLE_LOOKUP(path_state, PathState);
-
static const char* const path_type_table[_PATH_TYPE_MAX] = {
[PATH_EXISTS] = "PathExists",
[PATH_EXISTS_GLOB] = "PathExistsGlob",
@@ -737,6 +750,7 @@ DEFINE_STRING_TABLE_LOOKUP(path_type, PathType);
static const char* const path_result_table[_PATH_RESULT_MAX] = {
[PATH_SUCCESS] = "success",
[PATH_FAILURE_RESOURCES] = "resources",
+ [PATH_FAILURE_START_LIMIT_HIT] = "start-limit-hit",
};
DEFINE_STRING_TABLE_LOOKUP(path_result, PathResult);
@@ -770,6 +784,5 @@ const UnitVTable path_vtable = {
.reset_failed = path_reset_failed,
- .bus_interface = "org.freedesktop.systemd1.Path",
.bus_vtable = bus_path_vtable
};
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-07-23 00:40:52 +0000