X-Git-Url: http://www.project-moonshot.org/gitweb/?p=jansson.git;a=blobdiff_plain;f=src%2Fvalue.c;h=7c41c89df90e13f337cae9968bdf386c89a3ebab;hp=3fa7ee3a6cd470685a319aeab5cc2e8770afc9d4;hb=49880cbabeb597a9c748a3d5f37e9961a084dce3;hpb=f284e3c069abcdfc1145e939b0c284910c274d17 diff --git a/src/value.c b/src/value.c index 3fa7ee3..7c41c89 100644 --- a/src/value.c +++ b/src/value.c @@ -25,9 +25,16 @@ static inline void json_init(json_t *json, json_type type) /*** object ***/ -static unsigned int hash_string(const void *key) +/* This macro just returns a pointer that's a few bytes backwards from + string. This makes it possible to pass a pointer to object_key_t + when only the string inside it is used, without actually creating + an object_key_t instance. */ +#define string_to_key(string) container_of(string, object_key_t, key) + +static unsigned int hash_key(const void *ptr) { - const char *str = (const char *)key; + const char *str = ((const object_key_t *)ptr)->key; + unsigned int hash = 5381; unsigned int c; @@ -40,9 +47,10 @@ static unsigned int hash_string(const void *key) return hash; } -static int string_equal(const void *key1, const void *key2) +static int key_equal(const void *ptr1, const void *ptr2) { - return strcmp((const char *)key1, (const char *)key2) == 0; + return strcmp(((const object_key_t *)ptr1)->key, + ((const object_key_t *)ptr2)->key) == 0; } static void value_decref(void *value) @@ -57,13 +65,14 @@ json_t *json_object(void) return NULL; json_init(&object->json, JSON_OBJECT); - if(hashtable_init(&object->hashtable, hash_string, string_equal, + if(hashtable_init(&object->hashtable, hash_key, key_equal, free, value_decref)) { free(object); return NULL; } + object->serial = 0; object->visited = 0; return &object->json; @@ -94,12 +103,13 @@ json_t *json_object_get(const json_t *json, const char *key) return NULL; object = json_to_object(json); - return hashtable_get(&object->hashtable, key); + return hashtable_get(&object->hashtable, string_to_key(key)); } int json_object_set_new_nocheck(json_t *json, const char *key, json_t *value) { json_object_t *object; + object_key_t *k; if(!key || !value) return -1; @@ -111,7 +121,14 @@ int json_object_set_new_nocheck(json_t *json, const char *key, json_t *value) } object = json_to_object(json); - if(hashtable_set(&object->hashtable, strdup(key), value)) + k = malloc(sizeof(object_key_t) + strlen(key) + 1); + if(!k) + return -1; + + k->serial = object->serial++; + strcpy(k->key, key); + + if(hashtable_set(&object->hashtable, k, value)) { json_decref(value); return -1; @@ -139,7 +156,7 @@ int json_object_del(json_t *json, const char *key) return -1; object = json_to_object(json); - return hashtable_del(&object->hashtable, key); + return hashtable_del(&object->hashtable, string_to_key(key)); } int json_object_clear(json_t *json) @@ -190,6 +207,17 @@ void *json_object_iter(json_t *json) return hashtable_iter(&object->hashtable); } +void *json_object_iter_at(json_t *json, const char *key) +{ + json_object_t *object; + + if(!key || !json_is_object(json)) + return NULL; + + object = json_to_object(json); + return hashtable_iter_at(&object->hashtable, string_to_key(key)); +} + void *json_object_iter_next(json_t *json, void *iter) { json_object_t *object; @@ -201,12 +229,20 @@ void *json_object_iter_next(json_t *json, void *iter) return hashtable_iter_next(&object->hashtable, iter); } +const object_key_t *jsonp_object_iter_fullkey(void *iter) +{ + if(!iter) + return NULL; + + return hashtable_iter_key(iter); +} + const char *json_object_iter_key(void *iter) { if(!iter) return NULL; - return (const char *)hashtable_iter_key(iter); + return jsonp_object_iter_fullkey(iter)->key; } json_t *json_object_iter_value(void *iter) @@ -217,6 +253,19 @@ json_t *json_object_iter_value(void *iter) return (json_t *)hashtable_iter_value(iter); } +int json_object_iter_set_new(json_t *json, void *iter, json_t *value) +{ + json_object_t *object; + + if(!json_is_object(json) || !iter || !value) + return -1; + + object = json_to_object(json); + hashtable_iter_set(&object->hashtable, iter, value); + + return 0; +} + static int json_object_equal(json_t *object1, json_t *object2) { void *iter;