add optional tags to the ubus methos struct and the wrapper macros

[project/ubus.git] / libubus.h

diff --git a/libubus.h b/libubus.h
index 6c560b4..c891829 100644 (file)
--- a/libubus.h
+++ b/libubus.h
@@ -34,11 +34,10 @@ struct ubus_event_handler;
 struct ubus_subscriber;
 struct ubus_notify_request;
 
-static inline struct blob_attr *
-ubus_msghdr_data(struct ubus_msghdr *hdr)
-{
-       return (struct blob_attr *) (hdr + 1);
-}
+struct ubus_msghdr_buf {
+       struct ubus_msghdr hdr;
+       struct blob_attr *data;
+};
 
 typedef void (*ubus_lookup_handler_t)(struct ubus_context *ctx,
                                      struct ubus_object_data *obj,
@@ -67,32 +66,44 @@ typedef void (*ubus_connect_handler_t)(struct ubus_context *ctx);
                .methods = _methods                     \
        }
 
-#define __UBUS_METHOD_NOARG(_name, _handler)           \
+#define __UBUS_METHOD_NOARG(_name, _handler, _tags)    \
        .name = _name,                                  \
-       .handler = _handler
+       .handler = _handler,                            \
+       .tags = _tags
 
-#define __UBUS_METHOD(_name, _handler, _policy)                \
-       __UBUS_METHOD_NOARG(_name, _handler),           \
+#define __UBUS_METHOD(_name, _handler, _policy, _tags) \
+       __UBUS_METHOD_NOARG(_name, _handler, _tags),    \
        .policy = _policy,                              \
        .n_policy = ARRAY_SIZE(_policy)
 
 #define UBUS_METHOD(_name, _handler, _policy)          \
-       { __UBUS_METHOD(_name, _handler, _policy) }
+       { __UBUS_METHOD(_name, _handler, _policy, 0) }
+
+#define UBUS_METHOD_TAG(_name, _handler, _policy, _tags)\
+       { __UBUS_METHOD(_name, _handler, _policy, _tags) }
 
 #define UBUS_METHOD_MASK(_name, _handler, _policy, _mask) \
        {                                               \
-               __UBUS_METHOD(_name, _handler, _policy),\
+               __UBUS_METHOD(_name, _handler, _policy, 0),\
                .mask = _mask                           \
        }
 
 #define UBUS_METHOD_NOARG(_name, _handler)             \
-       { __UBUS_METHOD_NOARG(_name, _handler) }
+       { __UBUS_METHOD_NOARG(_name, _handler, 0) }
+
+#define UBUS_METHOD_TAG_NOARG(_name, _handler, _tags)  \
+       { __UBUS_METHOD_NOARG(_name, _handler, _tags) }
+
+#define UBUS_TAG_STATUS                BIT(0)
+#define UBUS_TAG_ADMIN         BIT(1)
+#define UBUS_TAG_PRIVATE       BIT(2)
 
 struct ubus_method {
        const char *name;
        ubus_handler_t handler;
 
        unsigned long mask;
+       unsigned long tags;
        const struct blobmsg_policy *policy;
        int n_policy;
 };
@@ -148,10 +159,9 @@ struct ubus_context {
 
        void (*connection_lost)(struct ubus_context *ctx);
 
-       struct {
-               struct ubus_msghdr hdr;
-               char data[UBUS_MAX_MSGLEN];
-       } msgbuf;
+       struct ubus_msghdr_buf msgbuf;
+       uint32_t msgbuf_data_len;
+       int msgbuf_reduction_counter;
 };
 
 struct ubus_object_data {
@@ -211,10 +221,16 @@ struct ubus_auto_conn {
 };
 
 struct ubus_context *ubus_connect(const char *path);
+int ubus_connect_ctx(struct ubus_context *ctx, const char *path);
 void ubus_auto_connect(struct ubus_auto_conn *conn);
 int ubus_reconnect(struct ubus_context *ctx, const char *path);
+
+/* call this only for struct ubus_context pointers returned by ubus_connect() */
 void ubus_free(struct ubus_context *ctx);
 
+/* call this only for struct ubus_context pointers initialised by ubus_connect_ctx() */
+void ubus_shutdown(struct ubus_context *ctx);
+
 const char *ubus_strerror(int error);
 
 static inline void ubus_add_uloop(struct ubus_context *ctx)