index cab77d0816973ca242620c8320c22c8eca07682c..b91e9b88cebf815fe1dd6e22234c0140bb2d682f 100644 (file)
struct sdb_object {
sdb_type_t type;
int ref_cnt;
+ char *name;
};
-#define SDB_OBJECT_INIT { SDB_TYPE_INIT, 1 }
+#define SDB_OBJECT_INIT { SDB_TYPE_INIT, 1, NULL }
+#define SDB_OBJECT_TYPED_INIT(t) { (t), 1, NULL }
+
+#define SDB_OBJECT_STATIC(name) { \
+ /* type */ { sizeof(sdb_object_t), NULL, NULL }, \
+ /* ref-cnt */ 1, (name) }
typedef struct {
sdb_object_t super;
} sdb_object_wrapper_t;
#define SDB_OBJ(obj) ((sdb_object_t *)(obj))
+#define SDB_CONST_OBJ(obj) ((const sdb_object_t *)(obj))
#define SDB_OBJ_WRAPPER(obj) ((sdb_object_wrapper_t *)(obj))
+#define SDB_CONST_OBJ_WRAPPER(obj) ((const sdb_object_wrapper_t *)(obj))
+
+/*
+ * Callback types for comparing objects or performing object lookup.
+ */
+typedef int (*sdb_object_cmp_cb)(const sdb_object_t *, const sdb_object_t *);
+typedef int (*sdb_object_lookup_cb)(const sdb_object_t *, const void *user_data);
/*
* sdb_object_create:
- * Allocates a new sdb_object_t of the specified 'type'. The object will be
- * initialized to zero and then passed on to the 'init' function (if
+ * Allocates a new sdb_object_t of the specified 'name' and 'type'. The object
+ * will be initialized to zero and then passed on to the 'init' function (if
* specified). If specified, the 'destroy' callback will be called, when the
* reference count drops to zero and before freeing the memory allocated by
* the object itself.
*
* The init function will be called with the remaining arguments passed to
* sdb_object_create. If the init function fails (returns a non-zero value),
- * the object will be destructed and destroyed.
+ * the object will be destructed and destroyed. In this case, the 'destroy'
+ * callback may be called on objects that were only half-way initialized. The
+ * callback has to handle that case correctly.
*
* The reference count of the new object will be 1.
*
* - NULL on error
*/
sdb_object_t *
-sdb_object_create(sdb_type_t type, ...);
+sdb_object_create(const char *name, sdb_type_t type, ...);
+sdb_object_t *
+sdb_object_vcreate(const char *name, sdb_type_t type, va_list ap);
+
+/*
+ * sdb_object_create_simple:
+ * Create a "simple" object without custom initialization and optional
+ * destructor. See the description of sdb_object_create for more details.
+ */
+sdb_object_t *
+sdb_object_create_simple(const char *name, size_t size,
+ void (*destructor)(sdb_object_t *));
+
+/*
+ * sdb_object_create_T:
+ * Create a simple object of type 't'.
+ */
+#define sdb_object_create_T(n,t) \
+ sdb_object_create_simple((n), sizeof(t), NULL)
+
+/*
+ * sdb_object_create_dT:
+ * Create a simple object of dynamic type 't' using destructor 'd'.
+ */
+#define sdb_object_create_dT(n,t,d) \
+ sdb_object_create_simple((n), sizeof(t), d)
/*
* sdb_object_create_wrapper:
* of the SysDB object system.
*/
sdb_object_t *
-sdb_object_create_wrapper(void *data, void (*destructor)(void *));
+sdb_object_create_wrapper(const char *name,
+ void *data, void (*destructor)(void *));
-#define SDB_OBJECT_WRAPPER_STATIC(obj, destructor) \
- { SDB_OBJECT_INIT, (obj), (destructor) }
+#define SDB_OBJECT_WRAPPER_STATIC(obj) \
+ { SDB_OBJECT_INIT, (obj), /* destructor */ NULL }
/*
* sdb_object_deref:
void
sdb_object_ref(sdb_object_t *obj);
+/*
+ * sdb_object_cmp_by_name:
+ * Compare two objects by their name ignoring the case of the characters.
+ *
+ * Returns:
+ * - a negative value if o1 compares less than o2
+ * - zero if o1 matches o2
+ * - a positive value if o1 compares greater than o2
+ */
+int
+sdb_object_cmp_by_name(const sdb_object_t *o1, const sdb_object_t *o2);
+
#ifdef __cplusplus
} /* extern "C" */
#endif