Changeset bb154c6 in mainline for uspace/srv/sysman/unit.h

Timestamp:

2019-08-03T08:15:25Z (5 years ago)

Author:

Matthieu Riolo <matthieu.riolo@…>

Children:

09a8006

Parents:

6006f35

git-author:

Michal Koutný <xm.koutny+hos@…> (2015-04-15 15:14:58)

git-committer:

Matthieu Riolo <matthieu.riolo@…> (2019-08-03 08:15:25)

Message:

Add skeleton for configuration files loading

• Create content of /cfg directory,
• create sample configuration file,
• refactored polymorphism.

Conflicts:

boot/Makefile

File:

• uspace/srv/sysman/unit.h (modified) (3 diffs)

uspace/srv/sysman/unit.h

@@ +1 @@
+/*
+ * Unit terminology and OOP based on systemd.
+ */
 #ifndef SYSMAN_UNIT_H
 #define SYSMAN_UNIT_H
 
+#include <adt/hash_table.h>
 #include <adt/list.h>
+#include <conf/configuration.h>
+#include <conf/ini.h>
+#include <conf/text_parse.h>
 #include <fibril_synch.h>
 
-#include "unit_mnt.h"
-#include "unit_cfg.h"
-#include "unit_tgt.h"
-#include "unit_types.h"
+typedef enum {
+        UNIT_TYPE_INVALID = -1,
+        UNIT_TARGET = 0,
+        UNIT_MOUNT,
+        UNIT_CONFIGURATION,
+} unit_type_t;
 
-struct unit {
-        link_t units;
+typedef enum {
+        STATE_EMBRYO = 0,
+        STATE_STARTING,
+        STATE_STARTED,
+        STATE_STOPPED,
+        STATE_FAILED
+} unit_state_t;
+
+typedef struct {
+        ht_link_t units;
 
         unit_type_t type;
+        char *name;
 
         unit_state_t state;
@@ -21 +39 @@
         list_t dependencies;
         list_t dependants;
+} unit_t;
 
-        union {
-                unit_mnt_t mnt;
-                unit_cfg_t cfg;
-        } data;
+typedef struct unit_vmt unit_vmt_t;
+struct unit_vmt;
+
+#include "unit_cfg.h"
+#include "unit_mnt.h"
+#include "unit_tgt.h"
+
+#define DEFINE_CAST(NAME, TYPE, ENUM_TYPE)                           \
+        static inline TYPE *CAST_##NAME(unit_t *u)                   \
+        {                                                            \
+                if (u->type == ENUM_TYPE)                            \
+                        return (TYPE *)u;                            \
+                else                                                 \
+                        return NULL;                                 \
+        }                                                            \
+
+DEFINE_CAST(CFG, unit_cfg_t, UNIT_CONFIGURATION)
+DEFINE_CAST(MNT, unit_mnt_t, UNIT_MOUNT)
+DEFINE_CAST(TGT, unit_tgt_t, UNIT_TARGET)
+
+struct unit_vmt {
+        size_t size;
+
+        void (*init)(unit_t *);
+
+        void (*destroy)(unit_t *);
+
+        int (*load)(unit_t *, ini_configuration_t *, text_parse_t *);
+
+        int (*start)(unit_t *);
 };
 
+extern unit_vmt_t *unit_type_vmts[];
+
+#define DEFINE_UNIT_VMT(PREFIX)                                      \
+        unit_vmt_t PREFIX##_ops = {                                  \
+                .size    = sizeof(PREFIX##_t),                       \
+                .init    = &PREFIX##_init,                           \
+                .load    = &PREFIX##_load,                           \
+                .destroy = &PREFIX##_destroy,                        \
+                .start   = &PREFIX##_start                           \
+        };
+
+#define UNIT_VMT(UNIT) unit_type_vmts[(UNIT)->type]
 
 extern unit_t *unit_create(unit_type_t);
@@ -35 +92 @@
 extern void unit_set_state(unit_t *, unit_state_t);
 
+extern int unit_load(unit_t *, ini_configuration_t *, text_parse_t *);
 extern int unit_start(unit_t *);
 
+extern unit_type_t unit_type_name_to_type(const char *);
+
+extern const char *unit_name(const unit_t *);
+
+extern bool unit_parse_unit_list(const char *, void *, text_parse_t *, size_t);
+
 #endif