Return-Path: MIME-Version: 1.0 In-Reply-To: <1414513123-5689-1-git-send-email-luiz.dentz@gmail.com> References: <1414513123-5689-1-git-send-email-luiz.dentz@gmail.com> Date: Wed, 29 Oct 2014 08:09:49 -0700 Message-ID: Subject: Re: [PATCH v2 1/9] shared/gatt-db: Expose gatt_db_attribute From: Arman Uguray To: Luiz Augusto von Dentz Cc: BlueZ development Content-Type: text/plain; charset=UTF-8 Sender: linux-bluetooth-owner@vger.kernel.org List-ID: Hi Luiz, On Tue, Oct 28, 2014 at 9:18 AM, Luiz Augusto von Dentz wrote: > From: Luiz Augusto von Dentz > > 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. > > src/shared/gatt-db.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++ > src/shared/gatt-db.h | 33 +++++++++++++++++++++++++++++++++ > 2 files changed, 82 insertions(+) > > diff --git a/src/shared/gatt-db.c b/src/shared/gatt-db.c > index 65c5759..19784d1 100644 > --- a/src/shared/gatt-db.c > +++ b/src/shared/gatt-db.c > @@ -802,3 +802,52 @@ 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; > +} > + > +uint16_t gatt_db_attribute_get_start_handle(struct gatt_db_attribute *attrib) > +{ > + return 0; > +} > + > +uint16_t gatt_db_attribute_get_end_handle(struct gatt_db_attribute *attrib) > +{ > + return 0; > +} > + > +const bt_uuid_t *gatt_db_attribute_get_type(struct gatt_db_attribute *attrib) > +{ > + return NULL; > +} > + > +bool gatt_db_attribute_get_service_uuid(struct gatt_db_attribute *attrib, > + bt_uuid_t *uuid) > +{ > + 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..0c16e88 100644 > --- a/src/shared/gatt-db.h > +++ b/src/shared/gatt-db.h > @@ -96,3 +96,36 @@ 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); > + > +uint16_t gatt_db_attribute_get_start_handle(struct gatt_db_attribute *attrib); > +uint16_t gatt_db_attribute_get_end_handle(struct gatt_db_attribute *attrib); > + > +const bt_uuid_t *gatt_db_attribute_get_type(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_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); Should the "err" argument here and in gatt_db_attribute_write_it be uint8_t instead of int? The pre-defined ATT protocol errors as well as profile/application defined errors are reported in one byte in an error response. What would we need a larger or a negative value for? > + > +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 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html Cheers, Arman