ucimap: allow api users to take over allocation of section data structures

[project/uci.git] / ucimap.h

diff --git a/ucimap.h b/ucimap.h
index 0237fb1..921ab4e 100644 (file)
--- a/ucimap.h
+++ b/ucimap.h
@@ -32,70 +32,107 @@
 #define TEST_BIT(_name, _bit) \
        (_name[(_bit) / 8] & (1 << ((_bit) % 8)))
 
-#define OPTMAP_OPTION(_maptype, _type, _field, ...) \
-       { \
-               .type = _maptype, \
-               .name = #_field, \
-               .offset = offsetof(_type, _field), \
-               __VA_ARGS__  \
-       }
-
-struct uci_sectmap;
+#define UCIMAP_OPTION(_type, _field) \
+       .type = UCIMAP_CUSTOM, \
+       .name = #_field, \
+       .offset = offsetof(_type, _field)
+
+
+#define UCIMAP_SECTION(_name, _field) \
+       .alloc_len = sizeof(_name), \
+       .smap_offset = offsetof(_name, _field)
+
+struct uci_sectionmap;
 struct uci_optmap;
+struct ucimap_list;
 
 struct uci_map {
-       struct uci_sectmap *sections;
+       struct uci_sectionmap **sections;
        unsigned int n_sections;
        struct list_head sdata;
+       struct list_head fixup;
 
        void *priv; /* user data */
 };
 
 enum ucimap_type {
-       UCIMAP_STRING,
-       UCIMAP_BOOL,
-       UCIMAP_INT,
+       /* types */
+       UCIMAP_SIMPLE   = 0x00,
+       UCIMAP_LIST     = 0x10,
+       UCIMAP_TYPE     = 0xf0, /* type mask */
+
+       /* subtypes */
+       UCIMAP_STRING   = 0x0,
+       UCIMAP_BOOL     = 0x1,
+       UCIMAP_INT      = 0x2,
+       UCIMAP_SECTION  = 0x3,
+       UCIMAP_CUSTOM   = 0x4,
+       UCIMAP_SUBTYPE  = 0xf, /* subtype mask */
+};
+
+union ucimap_data {
+       int i;
+       bool b;
+       char *s;
+       void *section;
+       struct ucimap_list *list;
 };
 
-/* ucimap internal */
-struct uci_sectmap_data {
+struct ucimap_section_data {
        struct list_head list;
-       struct uci_sectmap *sm;
+       struct uci_map *map;
+       struct uci_sectionmap *sm;
        const char *section_name;
-       unsigned long allocmap_len;
 
        /* list of allocations done by ucimap */
-       void **allocmap;
+       struct uci_alloc *allocmap;
+       unsigned long allocmap_len;
 
        /* map for changed fields */
        unsigned char *cmap;
+       bool done;
 };
 
-struct uci_sectmap {
+
+struct uci_listmap {
+       struct list_head list;
+       union ucimap_data data;
+};
+
+struct uci_sectionmap {
        /* type string for the uci section */
        const char *type;
 
        /* length of the struct to map into */
        unsigned int alloc_len;
 
+       /* sectionmap offset */
+       unsigned int smap_offset;
+
+       /* allocate a new data structure and return a pointer to the section map data */
+       struct ucimap_section_data *(*alloc)(struct uci_map *map,
+               struct uci_sectionmap *sm, struct uci_section *s);
+
        /* give the caller time to initialize the preallocated struct */
-       int (*init_section)(struct uci_map *map, void *section, struct uci_section *s);
+       int (*init)(struct uci_map *map, void *section, struct uci_section *s);
 
        /* pass the fully processed struct to the callback after the section end */
-       int (*add_section)(struct uci_map *map, void *section);
+       int (*add)(struct uci_map *map, void *section);
 
        /* let the callback clean up its own stuff in the section */
-       int (*free_section)(struct uci_map *map, void *section);
+       int (*free)(struct uci_map *map, void *section);
 
        /* list of option mappings for this section */
        struct uci_optmap *options;
        unsigned int n_options;
+       unsigned int options_size;
 };
 
 struct uci_optmap {
        unsigned int offset;
        const char *name;
        enum ucimap_type type;
+       int (*parse)(void *section, struct uci_optmap *om, union ucimap_data *data, const char *string);
        union {
                struct {
                        int base;
@@ -105,12 +142,18 @@ struct uci_optmap {
                struct {
                        int maxlen;
                } s;
+               struct uci_sectionmap *sm;
        } data;
 };
 
+struct ucimap_list {
+       int n_items;
+       union ucimap_data item[];
+};
+
 extern int ucimap_init(struct uci_map *map);
 extern void ucimap_cleanup(struct uci_map *map);
-extern void ucimap_set_changed(void *section, void *field);
+extern void ucimap_set_changed(struct ucimap_section_data *sd, void *field);
 extern int ucimap_store_section(struct uci_map *map, struct uci_package *p, void *section);
 extern void ucimap_parse(struct uci_map *map, struct uci_package *pkg);