-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
#include "unit-name.h"
#include "path.h"
#include "dbus-path.h"
+#include "special.h"
+#include "bus-errors.h"
static const UnitActiveState state_translation_table[_PATH_STATE_MAX] = {
[PATH_DEAD] = UNIT_INACTIVE,
[PATH_WAITING] = UNIT_ACTIVE,
[PATH_RUNNING] = UNIT_ACTIVE,
- [PATH_MAINTENANCE] = UNIT_MAINTENANCE
+ [PATH_FAILED] = UNIT_FAILED
};
static void path_done(Unit *u) {
return 0;
}
+static int path_add_default_dependencies(Path *p) {
+ int r;
+
+ assert(p);
+
+ if (p->meta.manager->running_as == MANAGER_SYSTEM) {
+ if ((r = unit_add_dependency_by_name(UNIT(p), UNIT_BEFORE, SPECIAL_BASIC_TARGET, NULL, true)) < 0)
+ return r;
+
+ if ((r = unit_add_two_dependencies_by_name(UNIT(p), UNIT_AFTER, UNIT_REQUIRES, SPECIAL_SYSINIT_TARGET, NULL, true)) < 0)
+ return r;
+ }
+
+ return unit_add_two_dependencies_by_name(UNIT(p), UNIT_BEFORE, UNIT_CONFLICTS, SPECIAL_SHUTDOWN_TARGET, NULL, true);
+}
+
static int path_load(Unit *u) {
Path *p = PATH(u);
int r;
if ((r = path_add_mount_links(p)) < 0)
return r;
+
+ if (p->meta.default_dependencies)
+ if ((r = path_add_default_dependencies(p)) < 0)
+ return r;
}
return path_verify(p);
static void path_dump(Unit *u, FILE *f, const char *prefix) {
Path *p = PATH(u);
- const char *prefix2;
- char *p2;
PathSpec *s;
- p2 = strappend(prefix, "\t");
- prefix2 = p2 ? p2 : prefix;
+ assert(p);
+ assert(f);
fprintf(f,
"%sPath State: %s\n"
prefix,
path_type_to_string(s->type),
s->path);
-
- free(p2);
}
static void path_unwatch_one(Path *p, PathSpec *s) {
if (!success)
p->failure = true;
- path_set_state(p, p->failure ? PATH_MAINTENANCE : PATH_DEAD);
+ path_set_state(p, p->failure ? PATH_FAILED : PATH_DEAD);
}
static void path_enter_running(Path *p) {
int r;
+ DBusError error;
+
assert(p);
+ dbus_error_init(&error);
- if ((r = manager_add_job(p->meta.manager, JOB_START, p->unit, JOB_REPLACE, true, NULL)) < 0)
+ /* Don't start job if we are supposed to go down */
+ if (p->meta.job && p->meta.job->type == JOB_STOP)
+ return;
+
+ if ((r = manager_add_job(p->meta.manager, JOB_START, p->unit, JOB_REPLACE, true, &error, NULL)) < 0)
goto fail;
path_set_state(p, PATH_RUNNING);
return;
fail:
- log_warning("%s failed to queue unit startup job: %s", p->meta.id, strerror(-r));
+ log_warning("%s failed to queue unit startup job: %s", p->meta.id, bus_error(&error, r));
path_enter_dead(p, false);
+
+ dbus_error_free(&error);
}
Path *p = PATH(u);
assert(p);
- assert(p->state == PATH_DEAD || p->state == PATH_MAINTENANCE);
+ assert(p->state == PATH_DEAD || p->state == PATH_FAILED);
if (p->unit->meta.load_state != UNIT_LOADED)
return -ENOENT;
p->failure = false;
-path_enter_waiting(p, true);
+ path_enter_waiting(p, true);
+
return 0;
}
Path *p = PATH(u);
int l;
ssize_t k;
- struct inotify_event *buf = NULL;
+ uint8_t *buf = NULL;
+ struct inotify_event *e;
PathSpec *s;
assert(p);
goto fail;
}
- if ((size_t) k < sizeof(struct inotify_event) ||
- (size_t) k < sizeof(struct inotify_event) + buf->len) {
- log_error("inotify event too small.");
- goto fail;
- }
+ e = (struct inotify_event*) buf;
- if (s->type == PATH_CHANGED && s->primary_wd == buf->wd)
- path_enter_running(p);
- else
- path_enter_waiting(p, false);
+ while (k > 0) {
+ size_t step;
+
+ if (s->type == PATH_CHANGED && s->primary_wd == e->wd)
+ path_enter_running(p);
+ else
+ path_enter_waiting(p, false);
+
+ step = sizeof(struct inotify_event) + e->len;
+ assert(step <= (size_t) k);
+
+ e = (struct inotify_event*) ((uint8_t*) e + step);
+ k -= step;
+ }
free(buf);
log_error("Failed find path unit: %s", strerror(-r));
}
+static void path_reset_failed(Unit *u) {
+ Path *p = PATH(u);
+
+ assert(p);
+
+ if (p->state == PATH_FAILED)
+ path_set_state(p, PATH_DEAD);
+
+ p->failure = false;
+}
+
static const char* const path_state_table[_PATH_STATE_MAX] = {
[PATH_DEAD] = "dead",
[PATH_WAITING] = "waiting",
[PATH_RUNNING] = "running",
- [PATH_MAINTENANCE] = "maintenance"
+ [PATH_FAILED] = "failed"
};
DEFINE_STRING_TABLE_LOOKUP(path_state, PathState);
.fd_event = path_fd_event,
+ .reset_failed = path_reset_failed,
+
+ .bus_interface = "org.freedesktop.systemd1.Path",
.bus_message_handler = bus_path_message_handler
};