#include "mkdir.h"
#include "dbus-path.h"
#include "special.h"
-#include "bus-errors.h"
+#include "dbus-common.h"
#include "path-util.h"
#include "macro.h"
};
bool exists = false;
- char _cleanup_free_ *path = NULL;
char *slash, *oldslash = NULL;
int r;
path_spec_unwatch(s, u);
- path = strdup(s->path);
- if (!path)
- return -ENOMEM;
-
s->inotify_fd = inotify_init1(IN_NONBLOCK|IN_CLOEXEC);
if (s->inotify_fd < 0) {
r = -errno;
/* This assumes the path was passed through path_kill_slashes()! */
- for(slash = strchr(path, '/'); ; slash = strchr(slash+1, '/')) {
+ for (slash = strchr(s->path, '/'); ; slash = strchr(slash+1, '/')) {
+ char *cut = NULL;
int flags;
char tmp;
if (slash) {
- tmp = slash[slash == path];
- slash[slash == path] = '\0';
+ cut = slash + (slash == s->path);
+ tmp = *cut;
+ *cut = '\0';
+
flags = IN_MOVE_SELF | IN_DELETE_SELF | IN_ATTRIB | IN_CREATE | IN_MOVED_TO;
- } else {
+ } else
flags = flags_table[s->type];
- }
- r = inotify_add_watch(s->inotify_fd, path, flags);
+ r = inotify_add_watch(s->inotify_fd, s->path, flags);
if (r < 0) {
- if (errno == EACCES || errno == ENOENT)
+ if (errno == EACCES || errno == ENOENT) {
+ if (cut)
+ *cut = tmp;
break;
+ }
- log_warning("Failed to add watch on %s: %m", path);
+ log_warning("Failed to add watch on %s: %m", s->path);
r = -errno;
+ if (cut)
+ *cut = tmp;
goto fail;
} else {
exists = true;
/* Path exists, we don't need to watch parent
too closely. */
if (oldslash) {
- char tmp2 = oldslash[oldslash == path];
- oldslash[oldslash == path] = '\0';
+ char *cut2 = oldslash + (oldslash == s->path);
+ char tmp2 = *cut2;
+ *cut2 = '\0';
- inotify_add_watch(s->inotify_fd, path, IN_MOVE_SELF);
+ inotify_add_watch(s->inotify_fd, s->path, IN_MOVE_SELF);
/* Error is ignored, the worst can happen is
we get spurious events. */
- oldslash[oldslash == path] = tmp2;
+ *cut2 = tmp2;
}
}
- if (slash) {
- slash[slash == path] = tmp;
+ if (cut)
+ *cut = tmp;
+
+ if (slash)
oldslash = slash;
- } else {
+ else {
/* whole path has been iterated over */
s->primary_wd = r;
break;
}
}
- assert(errno == EACCES || errno == ENOENT || streq(path, s->path));
-
if (!exists) {
log_error("Failed to add watch on any of the components of %s: %m",
s->path);
}
int path_spec_fd_event(PathSpec *s, uint32_t events) {
- uint8_t _cleanup_free_ *buf = NULL;
+ _cleanup_free_ uint8_t *buf = NULL;
struct inotify_event *e;
ssize_t k;
int l;
assert(p);
- unit_ref_unset(&p->unit);
path_free_specs(p);
}
assert(p);
- if (UNIT(p)->manager->running_as == SYSTEMD_SYSTEM) {
- r = unit_add_dependency_by_name(UNIT(p), UNIT_BEFORE,
- SPECIAL_BASIC_TARGET, NULL, true);
- if (r < 0)
- return r;
+ 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 == SYSTEMD_SYSTEM) {
r = unit_add_two_dependencies_by_name(UNIT(p), UNIT_AFTER, UNIT_REQUIRES,
SPECIAL_SYSINIT_TARGET, NULL, true);
if (r < 0)
if (u->load_state == UNIT_LOADED) {
- if (!UNIT_DEREF(p->unit)) {
+ if (set_isempty(u->dependencies[UNIT_TRIGGERS])) {
Unit *x;
r = unit_load_related_unit(u, ".service", &x);
if (r < 0)
return r;
- unit_ref_set(&p->unit, x);
+ r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS, x, true);
+ if (r < 0)
+ return r;
}
- r = unit_add_two_dependencies(u, UNIT_BEFORE, UNIT_TRIGGERS,
- UNIT_DEREF(p->unit), true);
- if (r < 0)
- return r;
-
r = path_add_mount_links(p);
if (r < 0)
return r;
static void path_dump(Unit *u, FILE *f, const char *prefix) {
Path *p = PATH(u);
+ Unit *trigger;
PathSpec *s;
assert(p);
assert(f);
+ trigger = UNIT_TRIGGER(u);
+
fprintf(f,
"%sPath State: %s\n"
"%sResult: %s\n"
"%sDirectoryMode: %04o\n",
prefix, path_state_to_string(p->state),
prefix, path_result_to_string(p->result),
- prefix, UNIT_DEREF(p->unit)->id,
+ prefix, trigger ? trigger->id : "n/a",
prefix, yes_no(p->make_directory),
prefix, p->directory_mode);
}
static void path_enter_running(Path *p) {
+ _cleanup_dbus_error_free_ DBusError error;
int r;
- DBusError error;
assert(p);
+
dbus_error_init(&error);
/* Don't start job if we are supposed to go down */
- if (UNIT(p)->job && UNIT(p)->job->type == JOB_STOP)
+ if (unit_stop_pending(UNIT(p)))
return;
- r = manager_add_job(UNIT(p)->manager, JOB_START, UNIT_DEREF(p->unit),
+ r = manager_add_job(UNIT(p)->manager, JOB_START, UNIT_TRIGGER(UNIT(p)),
JOB_REPLACE, true, &error, NULL);
if (r < 0)
goto fail;
log_warning("%s failed to queue unit startup job: %s",
UNIT(p)->id, bus_error(&error, r));
path_enter_dead(p, PATH_FAILURE_RESOURCES);
-
- dbus_error_free(&error);
}
static bool path_check_good(Path *p, bool initial) {
assert(p);
assert(p->state == PATH_DEAD || p->state == PATH_FAILED);
- if (UNIT_DEREF(p->unit)->load_state != UNIT_LOADED)
+ if (UNIT_TRIGGER(u)->load_state != UNIT_LOADED)
return -ENOENT;
path_mkdir(p);
return 0;
}
-static UnitActiveState path_active_state(Unit *u) {
+_pure_ static UnitActiveState path_active_state(Unit *u) {
assert(u);
return state_translation_table[PATH(u)->state];
}
-static const char *path_sub_state_to_string(Unit *u) {
+_pure_ static const char *path_sub_state_to_string(Unit *u) {
assert(u);
return path_state_to_string(PATH(u)->state);
path_enter_dead(p, PATH_FAILURE_RESOURCES);
}
-void path_unit_notify(Unit *u, UnitActiveState new_state) {
- Iterator i;
- Unit *k;
-
- if (u->type == UNIT_PATH)
- return;
-
- SET_FOREACH(k, u->dependencies[UNIT_TRIGGERED_BY], i) {
- Path *p;
+static void path_trigger_notify(Unit *u, Unit *other) {
+ Path *p = PATH(u);
- if (k->type != UNIT_PATH)
- continue;
+ assert(u);
+ assert(other);
- if (k->load_state != UNIT_LOADED)
- continue;
+ /* Invoked whenever the unit we trigger changes state or gains
+ * or loses a job */
- p = PATH(k);
+ if (other->load_state != UNIT_LOADED)
+ return;
- if (p->state == PATH_RUNNING && new_state == UNIT_INACTIVE) {
- log_debug("%s got notified about unit deactivation.",
- UNIT(p)->id);
+ if (p->state == PATH_RUNNING &&
+ UNIT_IS_INACTIVE_OR_FAILED(unit_active_state(other))) {
+ log_debug_unit(UNIT(p)->id,
+ "%s got notified about unit deactivation.",
+ UNIT(p)->id);
- /* Hmm, so inotify was triggered since the
- * last activation, so I guess we need to
- * recheck what is going on. */
- path_enter_waiting(p, false, p->inotify_triggered);
- }
+ /* Hmm, so inotify was triggered since the
+ * last activation, so I guess we need to
+ * recheck what is going on. */
+ path_enter_waiting(p, false, p->inotify_triggered);
}
}
.fd_event = path_fd_event,
+ .trigger_notify = path_trigger_notify,
+
.reset_failed = path_reset_failed,
.bus_interface = "org.freedesktop.systemd1.Path",
~ianmdlvl / elogind.git / blobdiff