unit: use weaker dependencies between mount and device units in --user mode

[elogind.git] / src / core / unit.h

diff --git a/src/core/unit.h b/src/core/unit.h
index 8b242722454a14bf63bc5c00f56358af100c6a85..b3775d4d897849e25a40aa58712f36271c7042c5 100644 (file)
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -31,13 +31,7 @@ typedef enum UnitActiveState UnitActiveState;
 typedef struct UnitRef UnitRef;
 typedef struct UnitStatusMessageFormats UnitStatusMessageFormats;
 
-#include "sd-event.h"
-#include "set.h"
-#include "util.h"
 #include "list.h"
-#include "socket-util.h"
-#include "execute.h"
-#include "cgroup.h"
 #include "condition.h"
 #include "install.h"
 #include "unit-name.h"
@@ -76,7 +70,6 @@ static inline bool UNIT_IS_INACTIVE_OR_FAILED(UnitActiveState t) {
         return t == UNIT_INACTIVE || t == UNIT_FAILED;
 }
 
-#include "manager.h"
 #include "job.h"
 
 struct UnitRef {
@@ -179,8 +172,9 @@ struct Unit {
         /* Error code when we didn't manage to load the unit (negative) */
         int load_error;
 
-        /* Cached unit file state */
+        /* Cached unit file state and preset */
         UnitFileState unit_file_state;
+        int unit_file_preset;
 
         /* Counterparts in the cgroup filesystem */
         char *cgroup_path;
@@ -248,18 +242,16 @@ typedef enum UnitSetPropertiesMode {
         UNIT_PERSISTENT = 2,
 } UnitSetPropertiesMode;
 
-#include "service.h"
 #include "socket.h"
 #include "busname.h"
 #include "target.h"
 #include "snapshot.h"
 #include "device.h"
-#include "mount.h"
 #include "automount.h"
 #include "swap.h"
 #include "timer.h"
-#include "path.h"
 #include "slice.h"
+#include "path.h"
 #include "scope.h"
 
 struct UnitVTable {
@@ -283,7 +275,7 @@ struct UnitVTable {
          * that */
         size_t exec_runtime_offset;
 
-        /* The name of the configuration file section with the private settings of this unit*/
+        /* The name of the configuration file section with the private settings of this unit */
         const char *private_section;
 
         /* Config file sections this unit type understands, separated
@@ -344,6 +336,10 @@ struct UnitVTable {
          * way */
         bool (*check_gc)(Unit *u);
 
+        /* When the unit is not running and no job for it queued we
+         * shall release its runtime resources */
+        void (*release_resources)(Unit *u);
+
         /* Return true when this unit is suitable for snapshotting */
         bool (*check_snapshot)(Unit *u);
 
@@ -358,7 +354,7 @@ struct UnitVTable {
         void (*notify_cgroup_empty)(Unit *u);
 
         /* Called whenever a process of this unit sends us a message */
-        void (*notify_message)(Unit *u, pid_t pid, char **tags);
+        void (*notify_message)(Unit *u, pid_t pid, char **tags, FDSet *fds);
 
         /* Called whenever a name this Unit registered for comes or
          * goes away. */
@@ -395,6 +391,10 @@ struct UnitVTable {
         /* Type specific cleanups. */
         void (*shutdown)(Manager *m);
 
+        /* If this function is set and return false all jobs for units
+         * of this type will immediately fail. */
+        bool (*supported)(Manager *m);
+
         /* The interface name */
         const char *bus_interface;
 
@@ -560,6 +560,7 @@ void unit_start_on_failure(Unit *u);
 void unit_trigger_notify(Unit *u);
 
 UnitFileState unit_get_unit_file_state(Unit *u);
+int unit_get_unit_file_preset(Unit *u);
 
 Unit* unit_ref_set(UnitRef *ref, Unit *u);
 void unit_ref_unset(UnitRef *ref);
@@ -596,11 +597,20 @@ UnitActiveState unit_active_state_from_string(const char *s) _pure_;
 
 /* Macros which append UNIT= or USER_UNIT= to the message */
 
-#define log_full_unit(level, unit, ...) log_meta_object(level, __FILE__, __LINE__, __func__, getpid() == 1 ? "UNIT=" : "USER_UNIT=", unit, __VA_ARGS__)
-#define log_debug_unit(unit, ...)       log_full_unit(LOG_DEBUG, unit, __VA_ARGS__)
-#define log_info_unit(unit, ...)        log_full_unit(LOG_INFO, unit, __VA_ARGS__)
-#define log_notice_unit(unit, ...)      log_full_unit(LOG_NOTICE, unit, __VA_ARGS__)
-#define log_warning_unit(unit, ...)     log_full_unit(LOG_WARNING, unit, __VA_ARGS__)
-#define log_error_unit(unit, ...)       log_full_unit(LOG_ERR, unit, __VA_ARGS__)
+#define log_unit_full_errno(unit, level, error, ...) log_object_internal(level, error, __FILE__, __LINE__, __func__, getpid() == 1 ? "UNIT=" : "USER_UNIT=", unit, __VA_ARGS__)
+#define log_unit_full(unit, level, ...) log_unit_full_errno(unit, level, 0, __VA_ARGS__)
+
+#define log_unit_debug(unit, ...)       log_unit_full(unit, LOG_DEBUG, __VA_ARGS__)
+#define log_unit_info(unit, ...)        log_unit_full(unit, LOG_INFO, __VA_ARGS__)
+#define log_unit_notice(unit, ...)      log_unit_full(unit, LOG_NOTICE, __VA_ARGS__)
+#define log_unit_warning(unit, ...)     log_unit_full(unit, LOG_WARNING, __VA_ARGS__)
+#define log_unit_error(unit, ...)       log_unit_full(unit, LOG_ERR, __VA_ARGS__)
+
+#define log_unit_debug_errno(unit, error, ...)       log_unit_full_errno(unit, LOG_DEBUG, error, __VA_ARGS__)
+#define log_unit_info_errno(unit, error, ...)        log_unit_full_errno(unit, LOG_INFO, error, __VA_ARGS__)
+#define log_unit_notice_errno(unit, error, ...)      log_unit_full_errno(unit, LOG_NOTICE, error, __VA_ARGS__)
+#define log_unit_warning_errno(unit, error, ...)     log_unit_full_errno(unit, LOG_WARNING, error, __VA_ARGS__)
+#define log_unit_error_errno(unit, error, ...)       log_unit_full_errno(unit, LOG_ERR, error, __VA_ARGS__)
 
-#define log_struct_unit(level, unit, ...) log_struct(level, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__)
+#define log_unit_struct(unit, level, ...) log_struct(level, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__)
+#define log_unit_struct_errno(unit, level, error, ...) log_struct_errno(level, error, getpid() == 1 ? "UNIT=%s" : "USER_UNIT=%s", unit, __VA_ARGS__)