implement recursive_stop/stop_when_unneeded unit flags

[elogind.git] / unit.h

diff --git a/unit.h b/unit.h
index 46b3c45becfe5424c5835a98e8c20c4d719202aa..c12ce0b482d784542eaf5a1da3ca4af448a64b0d 100644 (file)
--- a/unit.h
+++ b/unit.h
@@ -14,16 +14,13 @@ typedef enum UnitLoadState UnitLoadState;
 typedef enum UnitActiveState UnitActiveState;
 typedef enum UnitDependency UnitDependency;
 
-#include "job.h"
-#include "manager.h"
 #include "set.h"
 #include "util.h"
 #include "list.h"
 #include "socket-util.h"
 #include "execute.h"
-#include "util.h"
 
-#define UNIT_NAME_MAX 32
+#define UNIT_NAME_MAX 128
 #define DEFAULT_TIMEOUT_USEC (20*USEC_PER_SEC)
 #define DEFAULT_RESTART_USEC (100*USEC_PER_MSEC)
 
@@ -92,6 +89,9 @@ enum UnitDependency {
         _UNIT_DEPENDENCY_INVALID = -1
 };
 
+#include "manager.h"
+#include "job.h"
+
 struct Meta {
         Manager *manager;
         UnitType type;
@@ -111,11 +111,20 @@ struct Meta {
 
         bool in_load_queue:1;
 
+        /* If we go down, pull down everything that depends on us, too */
+        bool recursive_stop;
+
+        /* Garbage collect us we nobody wants or requires us anymore */
+        bool stop_when_unneeded;
+
         usec_t active_enter_timestamp;
         usec_t active_exit_timestamp;
 
         /* Load queue */
         LIST_FIELDS(Meta, load_queue);
+
+        /* Per type list */
+        LIST_FIELDS(Meta, units_per_type);
 };
 
 #include "service.h"
@@ -144,6 +153,7 @@ struct UnitVTable {
 
         int (*init)(Unit *u);
         void (*done)(Unit *u);
+        int (*coldplug)(Unit *u);
 
         void (*dump)(Unit *u, FILE *f, const char *prefix);
 
@@ -161,7 +171,15 @@ struct UnitVTable {
         void (*sigchld_event)(Unit *u, pid_t pid, int code, int status);
         void (*timer_event)(Unit *u, uint64_t n_elapsed, Watch *w);
 
-        void (*retry)(Unit *u);
+        /* This is called for each unit type and should be used to
+         * enumerate existing devices and load them. However,
+         * everything that is loaded here should still stay in
+         * inactive state. It is the job of the coldplug() call above
+         * to put the units into the initial state.  */
+        int (*enumerate)(Manager *m);
+
+        /* Type specific cleanups. */
+        void (*shutdown)(Manager *m);
 };
 
 extern const UnitVTable * const unit_vtable[_UNIT_TYPE_MAX];
@@ -198,6 +216,10 @@ void unit_free(Unit *u);
 
 int unit_add_name(Unit *u, const char *name);
 int unit_add_dependency(Unit *u, UnitDependency d, Unit *other);
+int unit_add_dependency_by_name(Unit *u, UnitDependency d, const char *name);
+
+int unit_choose_id(Unit *u, const char *name);
+int unit_set_description(Unit *u, const char *description);
 
 void unit_add_to_load_queue(Unit *u);
 
@@ -236,5 +258,6 @@ bool unit_job_is_applicable(Unit *u, JobType j);
 const char *unit_path(void);
 int set_unit_path(const char *p);
 
+char *unit_name_escape_path(const char *prefix, const char *path, const char *suffix);
 
 #endif