[PATCH 7/8] attrib-server: Allocate 128-bits UUIDs using highest available handlers
From: Santiago Carot-Nemesio <hidden>
Date: 2012-01-24 11:06:27
Subsystem:
the rest · Maintainer:
Linus Torvalds
128-uuids services are grouped at the end of the handlers database list. This group grows up from the highest handlers toward lowers handlers until the whole range is used or the last 16 bit-uuid service is reached. --- src/attrib-server.c | 47 ++++++++++++++++++++++++++++++++++++++++++++++- 1 files changed, 46 insertions(+), 1 deletions(-)
diff --git a/src/attrib-server.c b/src/attrib-server.c
index e52571c..f2bf5ef 100644
--- a/src/attrib-server.c
+++ b/src/attrib-server.c@@ -1317,7 +1317,52 @@ static uint16_t find_uuid16_avail(struct btd_adapter *adapter, uint16_t nitems) static uint16_t find_uuid128_avail(struct btd_adapter *adapter, uint16_t nitems) { - /* TODO: Allocate 128 uuids at the end of the list */ + struct gatt_server *server; + uint16_t handle = 0, end = 0xffff; + gboolean pick = TRUE; + GList *dl; + GSList *l; + + l = g_slist_find_custom(servers, adapter, adapter_cmp); + if (l == NULL) + return 0; + + server = l->data; + if (server->database == NULL) + return 0xffff - nitems + 1; + + for (dl = g_list_last(server->database); dl; dl = dl->prev) { + struct attribute *a = dl->data; + if (pick) { + handle = a->handle; + pick = FALSE; + } + + if (bt_uuid_cmp(&a->uuid, &prim_uuid) != 0 && + bt_uuid_cmp(&a->uuid, &snd_uuid) != 0) + continue; + + if ((bt_uuid_cmp(&a->uuid, &prim_uuid) == 0 || + bt_uuid_cmp(&a->uuid, &snd_uuid) == 0) && + end - handle >= nitems) + return end - nitems + 1; + + if (a->len == 2 && (bt_uuid_cmp(&a->uuid, &prim_uuid) == 0 || + bt_uuid_cmp(&a->uuid, &snd_uuid) == 0)) { + /* 16 bit UUID service definition */ + return 0; + } + + if (a->handle == 0x0001) + return 0; + + end = a->handle - 1; + pick = TRUE; + } + + if (end - 0x0001 >= nitems) + return end - nitems + 1; + return 0; }
--
1.7.8.4