From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
This is the new API to reduce the lookups in gatt_db and make it
a little bit more convenient for batch operations, so the general idea
is to be able to get a hold of it via gatt_db_get_attribute but also
replace the handles in the queues with proper attributes so the server
code don't have to lookup again when reading/writing, checking
permissions, or any other operation that can be done directly.
---
v2: Address problems gatt_db_attribute_read and gatt_db_attribute_write
pointed out by Arman.
v3: Allow gatt_db_attribute_read to work if offset equals to value length.
v4: Fix using attribute handle for service related operations.
src/shared/gatt-db.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
src/shared/gatt-db.h | 36 ++++++++++++++++++++++++++++++++++++
2 files changed, 87 insertions(+)
diff --git a/src/shared/gatt-db.c b/src/shared/gatt-db.c
index 6b5e84c..3ade7a9 100644
--- a/src/shared/gatt-db.c
+++ b/src/shared/gatt-db.c
@@ -802,3 +802,54 @@ bool gatt_db_get_attribute_permissions(struct gatt_db *db, uint16_t handle,
return true;
}
+
+struct gatt_db_attribute *gatt_db_get_attribute(struct gatt_db *db,
+ uint16_t handle)
+{
+ return NULL;
+}
+
+const bt_uuid_t *gatt_db_attribute_get_type(struct gatt_db_attribute *attrib)
+{
+ return NULL;
+}
+
+uint16_t gatt_db_attribute_get_handle(struct gatt_db_attribute *attrib)
+{
+ return 0;
+}
+
+bool gatt_db_attribute_get_service_uuid(struct gatt_db_attribute *attrib,
+ bt_uuid_t *uuid)
+{
+ return false;
+}
+
+bool gatt_db_attribute_get_service_handles(struct gatt_db_attribute *attrib,
+ uint16_t *start_handle,
+ uint16_t *end_handle)
+{
+ return false;
+}
+
+bool gatt_db_attribute_get_permissions(struct gatt_db_attribute *attrib,
+ uint32_t *permissions)
+{
+ return false;
+}
+
+bool gatt_db_attribute_read(struct gatt_db_attribute *attrib, uint16_t offset,
+ uint8_t opcode, bdaddr_t *bdaddr,
+ gatt_db_attribute_read_t func, void *user_data)
+{
+ return false;
+}
+
+bool gatt_db_attribute_write(struct gatt_db_attribute *attrib, uint16_t offset,
+ const uint8_t *value, size_t len,
+ uint8_t opcode, bdaddr_t *bdaddr,
+ gatt_db_attribute_write_t func,
+ void *user_data)
+{
+ return false;
+}
diff --git a/src/shared/gatt-db.h b/src/shared/gatt-db.h
index 8d18434..15be67f 100644
--- a/src/shared/gatt-db.h
+++ b/src/shared/gatt-db.h
@@ -96,3 +96,39 @@ bool gatt_db_get_service_uuid(struct gatt_db *db, uint16_t handle,
bool gatt_db_get_attribute_permissions(struct gatt_db *db, uint16_t handle,
uint32_t *permissions);
+
+struct gatt_db_attribute;
+
+struct gatt_db_attribute *gatt_db_get_attribute(struct gatt_db *db,
+ uint16_t handle);
+
+const bt_uuid_t *gatt_db_attribute_get_type(struct gatt_db_attribute *attrib);
+
+uint16_t gatt_db_attribute_get_handle(struct gatt_db_attribute *attrib);
+
+bool gatt_db_attribute_get_service_uuid(struct gatt_db_attribute *attrib,
+ bt_uuid_t *uuid);
+
+bool gatt_db_attribute_get_service_handles(struct gatt_db_attribute *attrib,
+ uint16_t *start_handle,
+ uint16_t *end_handle);
+
+bool gatt_db_attribute_get_permissions(struct gatt_db_attribute *attrib,
+ uint32_t *permissions);
+
+typedef void (*gatt_db_attribute_read_t) (struct gatt_db_attribute *attrib,
+ int err, uint8_t *value, size_t length,
+ void *user_data);
+
+bool gatt_db_attribute_read(struct gatt_db_attribute *attrib, uint16_t offset,
+ uint8_t opcode, bdaddr_t *bdaddr,
+ gatt_db_attribute_read_t func, void *user_data);
+
+typedef void (*gatt_db_attribute_write_t) (struct gatt_db_attribute *attrib,
+ int err, void *user_data);
+
+bool gatt_db_attribute_write(struct gatt_db_attribute *attrib, uint16_t offset,
+ const uint8_t *value, size_t len,
+ uint8_t opcode, bdaddr_t *bdaddr,
+ gatt_db_attribute_write_t func,
+ void *user_data);
--
1.9.3
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