#include <stdbool.h>
#include <stdio.h>
-#include "libudev.h"
#include "sd-bus.h"
+#include "sd-device.h"
#include "sd-event.h"
#include "cgroup-util.h"
typedef struct Manager Manager;
+/* An externally visible state. We don't actually maintain this as state variable, but derive it from various fields
+ * when requested */
typedef enum ManagerState {
MANAGER_INITIALIZING,
MANAGER_STARTING,
_MANAGER_STATE_INVALID = -1
} ManagerState;
-typedef enum ManagerExitCode {
+typedef enum ManagerObjective {
MANAGER_OK,
MANAGER_EXIT,
MANAGER_RELOAD,
MANAGER_HALT,
MANAGER_KEXEC,
MANAGER_SWITCH_ROOT,
- _MANAGER_EXIT_CODE_MAX,
- _MANAGER_EXIT_CODE_INVALID = -1
-} ManagerExitCode;
+ _MANAGER_OBJECTIVE_MAX,
+ _MANAGER_OBJECTIVE_INVALID = -1
+} ManagerObjective;
typedef enum StatusType {
STATUS_TYPE_EPHEMERAL,
STATUS_TYPE_EMERGENCY,
} StatusType;
+typedef enum OOMPolicy {
+ OOM_CONTINUE, /* The kernel kills the process it wants to kill, and that's it */
+ OOM_STOP, /* The kernel kills the process it wants to kill, and we stop the unit */
+ OOM_KILL, /* The kernel kills the process it wants to kill, and all others in the unit, and we stop the unit */
+ _OOM_POLICY_MAX,
+ _OOM_POLICY_INVALID = -1
+} OOMPolicy;
+
/* Notes:
* 1. TIMESTAMP_FIRMWARE, TIMESTAMP_LOADER, TIMESTAMP_KERNEL, TIMESTAMP_INITRD,
* TIMESTAMP_SECURITY_START, and TIMESTAMP_SECURITY_FINISH are set only when
#include "show-status.h"
#include "unit-name.h"
-enum {
- /* 0 = run normally */
- MANAGER_TEST_RUN_MINIMAL = 1 << 1, /* create basic data structures */
- MANAGER_TEST_RUN_BASIC = 1 << 2, /* interact with the environment */
- MANAGER_TEST_RUN_ENV_GENERATORS = 1 << 3, /* also run env generators */
- MANAGER_TEST_RUN_GENERATORS = 1 << 4, /* also run unit generators */
+typedef enum ManagerTestRunFlags {
+ MANAGER_TEST_NORMAL = 0, /* run normally */
+ MANAGER_TEST_RUN_MINIMAL = 1 << 0, /* create basic data structures */
+ MANAGER_TEST_RUN_BASIC = 1 << 1, /* interact with the environment */
+ MANAGER_TEST_RUN_ENV_GENERATORS = 1 << 2, /* also run env generators */
+ MANAGER_TEST_RUN_GENERATORS = 1 << 3, /* also run unit generators */
MANAGER_TEST_FULL = MANAGER_TEST_RUN_BASIC | MANAGER_TEST_RUN_ENV_GENERATORS | MANAGER_TEST_RUN_GENERATORS,
-};
+} ManagerTestRunFlags;
+
assert_cc((MANAGER_TEST_FULL & UINT8_MAX) == MANAGER_TEST_FULL);
struct Manager {
/* Units whose cgroup ran empty */
LIST_HEAD(Unit, cgroup_empty_queue);
+ /* Units whose memory.event fired */
+ LIST_HEAD(Unit, cgroup_oom_queue);
+
/* Target units whose default target dependencies haven't been set yet */
LIST_HEAD(Unit, target_deps_queue);
LookupPaths lookup_paths;
Set *unit_path_cache;
- char **environment;
+ char **transient_environment; /* The environment, as determined from config files, kernel cmdline and environment generators */
+ char **client_environment; /* Environment variables created by clients through the bus API */
usec_t runtime_watchdog;
usec_t shutdown_watchdog;
dual_timestamp timestamps[_MANAGER_TIMESTAMP_MAX];
/* Data specific to the device subsystem */
- struct udev_monitor* udev_monitor;
- sd_event_source *udev_event_source;
+ sd_device_monitor *device_monitor;
Hashmap *devices_by_sysfs;
/* Data specific to the mount subsystem */
/* This is used during reloading: before the reload we queue
* the reply message here, and afterwards we send it */
- sd_bus_message *queued_message;
+ sd_bus_message *pending_reload_message;
Hashmap *watch_bus; /* D-Bus names => Unit object n:1 */
/* Notifications from cgroups, when the unified hierarchy is used is done via inotify. */
int cgroup_inotify_fd;
sd_event_source *cgroup_inotify_event_source;
- Hashmap *cgroup_inotify_wd_unit;
+
+ /* Maps for finding the unit for each inotify watch descriptor for the cgroup.events and
+ * memory.events cgroupv2 attributes. */
+ Hashmap *cgroup_control_inotify_wd_unit;
+ Hashmap *cgroup_memory_inotify_wd_unit;
/* A defer event for handling cgroup empty events and processing them after SIGCHLD in all cases. */
sd_event_source *cgroup_empty_event_source;
+ sd_event_source *cgroup_oom_event_source;
/* Make sure the user cannot accidentally unmount our cgroup
* file system */
usec_t etc_localtime_mtime;
bool etc_localtime_accessible:1;
- /* Flags */
- ManagerExitCode exit_code:5;
+ ManagerObjective objective:5;
+ /* Flags */
bool dispatching_load_queue:1;
- bool dispatching_dbus_queue:1;
bool taint_usr:1;
/* Have we ever changed the "kernel.pid_max" sysctl? */
bool sysctl_pid_max_changed:1;
- unsigned test_run_flags:8;
+ ManagerTestRunFlags test_run_flags:8;
/* If non-zero, exit with the following value when the systemd
* process terminate. Useful for containers: systemd-nspawn could get
ExecOutput default_std_output, default_std_error;
usec_t default_restart_usec, default_timeout_start_usec, default_timeout_stop_usec;
+ usec_t default_timeout_abort_usec;
+ bool default_timeout_abort_set;
usec_t default_start_limit_interval;
unsigned default_start_limit_burst;
uint64_t default_tasks_max;
usec_t default_timer_accuracy_usec;
+ OOMPolicy default_oom_policy;
+
int original_log_level;
LogTarget original_log_target;
bool log_level_overridden:1;
/* non-zero if we are reloading or reexecuting, */
int n_reloading;
- /* A set which contains all jobs that started before reload and finished
- * during it */
- Set *pending_finished_jobs;
unsigned n_installed_jobs;
unsigned n_failed_jobs;
* multiple times on the same unit. */
unsigned sigchldgen;
unsigned notifygen;
+
+ bool honor_device_enumeration;
};
+static inline usec_t manager_default_timeout_abort_usec(Manager *m) {
+ return m->default_timeout_abort_set ? m->default_timeout_abort_usec : m->default_timeout_stop_usec;
+}
+
#define MANAGER_IS_SYSTEM(m) ((m)->unit_file_scope == UNIT_FILE_SYSTEM)
#define MANAGER_IS_USER(m) ((m)->unit_file_scope != UNIT_FILE_SYSTEM)
#define MANAGER_IS_FINISHED(m) (dual_timestamp_is_set((m)->timestamps + MANAGER_TIMESTAMP_FINISH))
-/* The exit code is set to OK as soon as we enter the main loop, and set otherwise as soon as we are done with it */
-#define MANAGER_IS_RUNNING(m) ((m)->exit_code == MANAGER_OK)
+/* The objective is set to OK as soon as we enter the main loop, and set otherwise as soon as we are done with it */
+#define MANAGER_IS_RUNNING(m) ((m)->objective == MANAGER_OK)
+
+#define MANAGER_IS_TEST_RUN(m) ((m)->test_run_flags != 0)
-int manager_new(UnitFileScope scope, unsigned test_run_flags, Manager **m);
+int manager_new(UnitFileScope scope, ManagerTestRunFlags test_run_flags, Manager **m);
Manager* manager_free(Manager *m);
DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
int manager_load_startable_unit_or_warn(Manager *m, const char *name, const char *path, Unit **ret);
int manager_load_unit_from_dbus_path(Manager *m, const char *s, sd_bus_error *e, Unit **_u);
-int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, sd_bus_error *e, Job **_ret);
-int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, sd_bus_error *e, Job **_ret);
-int manager_add_job_by_name_and_warn(Manager *m, JobType type, const char *name, JobMode mode, Job **ret);
+int manager_add_job(Manager *m, JobType type, Unit *unit, JobMode mode, Set *affected_jobs, sd_bus_error *e, Job **_ret);
+int manager_add_job_by_name(Manager *m, JobType type, const char *name, JobMode mode, Set *affected_jobs, sd_bus_error *e, Job **_ret);
+int manager_add_job_by_name_and_warn(Manager *m, JobType type, const char *name, JobMode mode, Set *affected_jobs, Job **ret);
int manager_propagate_reload(Manager *m, Unit *unit, JobMode mode, sd_bus_error *e);
void manager_dump_units(Manager *s, FILE *f, const char *prefix);
void manager_clear_jobs(Manager *m);
+void manager_unwatch_pid(Manager *m, pid_t pid);
+
unsigned manager_dispatch_load_queue(Manager *m);
-int manager_environment_add(Manager *m, char **minus, char **plus);
+int manager_default_environment(Manager *m);
+int manager_transient_environment_add(Manager *m, char **plus);
+int manager_client_environment_modify(Manager *m, char **minus, char **plus);
+int manager_get_effective_environment(Manager *m, char ***ret);
+
int manager_set_default_rlimits(Manager *m, struct rlimit **default_rlimit);
int manager_loop(Manager *m);
const char *manager_timestamp_to_string(ManagerTimestamp m) _const_;
ManagerTimestamp manager_timestamp_from_string(const char *s) _pure_;
ManagerTimestamp manager_timestamp_initrd_mangle(ManagerTimestamp s);
+
+const char* oom_policy_to_string(OOMPolicy i) _const_;
+OOMPolicy oom_policy_from_string(const char *s) _pure_;
projects / thirdparty / systemd.git / blobdiff