src: add used_size and free_size to partition data

Extend database table ordenadores_particiones to add new "used_size" and "free_size" fields.

  FIELD       TYPE
| tamano    | bigint   |
| uso       | tinyint  |
| used_size | bigint   |
| free_size | bigint   |

"tamano" is the field storing the total size of the partition.
"uso" is a field storing the integer percentage of use, it is preserved for backwards compatibility with scritps that access the database.
"used_size" and "free_size" contain the used and free partition
size in bytes.

Old response from ogClient for /cache/delete, /cache/fetch
and /image/restore:
{
  'cache': [
    {'name': 'windows.img', 'size': 2432370213, checksum: '5d4dcc677bc19f40a647d0002f4ade90'},
    {'name': 'linux.img', 'size': 243234534213, checksum: '3eb22f888f88a55ad954f55644e1192e'}
  ]
}

New response:
{
  'cache': {
    'used_size': 4520232322423,
    'free_size': 48273465287452945,
    'images': [
      {'name': 'windows.img', 'size': 2432370213, checksum: '5d4dcc677bc19f40a647d0002f4ade90'},
      {'name': 'linux.img', 'size': 243234534213, checksum: '3eb22f888f88a55ad954f55644e1192e'}
    ]
  }
}

Parse the new "free_size" and "used_size" fields of each partition data in the response payload of /refresh

Parse "free_size" and "used_size" fields of the cache data in the reponse payload of /image/restore, /cache/delete and /cache/fetch

Replace "used_size" field of GET /client/setup with the value
of the new database field "used_size"

1 files changed, 14 insertions, 2 deletions

diff --git a/src/json.h b/src/json.h
index e43531e..ff5c8ad 100644
--- a/src/json.h
+++ b/src/json.h
@@ -22,6 +22,7 @@ int og_json_parse_bool(const json_t *element, bool *value);
 #define OG_PARAM_PART_OS			(1UL << 6)
 #define OG_PARAM_PART_USED_SIZE			(1UL << 7)
 #define OG_PARAM_PART_DISK_TYPE			(1UL << 8)
+#define OG_PARAM_PART_FREE_SIZE			(1UL << 9)
 
 struct og_partition {
 	const char	*disk;
@@ -32,7 +33,9 @@ struct og_partition {
 	const char	*filesystem;
 	const char	*format;
 	const char	*os;
-	const char	*used_size;
+	uint64_t used_size;
+	uint64_t free_size;
+
 };
 
 #define OG_DISK_MAX		4
@@ -128,8 +131,17 @@ struct og_cache_image {
 	struct list_head list;
 };
 
+#define OG_PARAM_CACHE_USED_SIZE    (1UL << 0)
+#define OG_PARAM_CACHE_FREE_SIZE    (1UL << 1)
+#define OG_PARAM_CACHE_IMAGES       (1UL << 2)
+
+struct og_cache_data {
+	uint64_t   used_size;
+	uint64_t   free_size;
+};
+
 void og_cache_image_free(struct list_head *cache_list);
-int og_json_parse_cache(json_t *element, struct list_head *cache_list);
+int og_json_parse_cache(json_t *element, struct og_cache_data *cache_data, struct list_head *cache_list);
 
 
 #define OG_PARAM_EFI_ENTRIES        (1UL << 0)