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merge UUID.cpp into UUID.h

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This commit is contained in:
Rohit Grover 2015-04-09 09:02:01 +01:00
parent 04d91605dd
commit 18e4b666c8
2 changed files with 57 additions and 91 deletions
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88
common/UUID.cpp
View file

@ -1,88 +0,0 @@
/* mbed Microcontroller Library
* Copyright (c) 2006-2013 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <string.h>
#include "UUID.h"
UUID::UUID(ShortUUIDBytes_t shortUUID) : type(UUID_TYPE_SHORT), baseUUID(), shortUUID(shortUUID) {
/* empty */
}
/**************************************************************************/
/*!
@brief Creates a new 128-bit UUID
@note The UUID is a unique 128-bit (16 byte) ID used to identify
different service or characteristics on the BLE device.
@note When creating a UUID, the constructor will check if all bytes
except bytes 2/3 are equal to 0. If only bytes 2/3 have a
value, the UUID will be treated as a short/BLE UUID, and the
.type field will be set to UUID::UUID_TYPE_SHORT. If any
of the bytes outside byte 2/3 have a non-zero value, the UUID
will be considered a 128-bit ID, and .type will be assigned
as UUID::UUID_TYPE_LONG.
@param[in] uuid_base
The 128-bit (16-byte) UUID value. For 128-bit values,
assign all 16 bytes. For 16-bit values, assign the
16-bits to byte 2 and 3, and leave the rest of the bytes
as 0.
@section EXAMPLE
@code
// Create a short UUID (0x180F)
uint8_t shortID[16] = { 0, 0, 0x0F, 0x18, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
UUID ble_uuid = UUID(shortID);
// ble_uuid.type = UUID_TYPE_SHORT
// ble_uuid.value = 0x180F
// Creeate a long UUID
uint8_t longID[16] = { 0x00, 0x11, 0x22, 0x33,
0x44, 0x55, 0x66, 0x77,
0x88, 0x99, 0xAA, 0xBB,
0xCC, 0xDD, 0xEE, 0xFF };
UUID custom_uuid = UUID(longID);
// custom_uuid.type = UUID_TYPE_LONG
// custom_uuid.value = 0x3322
// custom_uuid.base = 00 11 22 33 44 55 66 77 88 99 AA BB CC DD EE FF
@endcode
*/
/**************************************************************************/
UUID::UUID(const LongUUIDBytes_t longUUID) : type(UUID_TYPE_LONG), baseUUID(), shortUUID(0)
{
memcpy(baseUUID, longUUID, LENGTH_OF_LONG_UUID);
shortUUID = (uint16_t)((longUUID[2] << 8) | (longUUID[3]));
}
bool UUID::operator==(const UUID &other) const
{
if ((this->type == UUID_TYPE_SHORT) && (other.type == UUID_TYPE_SHORT) &&
(this->shortUUID == other.shortUUID)) {
return true;
}
if ((this->type == UUID_TYPE_LONG) && (other.type == UUID_TYPE_LONG) &&
(memcmp(this->baseUUID, other.baseUUID, LENGTH_OF_LONG_UUID) == 0)) {
return true;
}
return false;
}

60
public/UUID.h
View file

@ -31,8 +31,49 @@ public:
};
public:
UUID(const LongUUIDBytes_t);
UUID(ShortUUIDBytes_t);
/**
* Creates a new 128-bit UUID
*
* @note The UUID is a unique 128-bit (16 byte) ID used to identify
* different service or characteristics on the BLE device.
*
* @param longUUID
* The 128-bit (16-byte) UUID value.
*/
UUID(const LongUUIDBytes_t longUUID) : type(UUID_TYPE_LONG), baseUUID(), shortUUID(0) {
memcpy(baseUUID, longUUID, LENGTH_OF_LONG_UUID);
shortUUID = (uint16_t)((longUUID[2] << 8) | (longUUID[3]));
}
/**
* Creates a new 16-bit UUID
*
* @note The UUID is a unique 16-bit (2 byte) ID used to identify
* different service or characteristics on the BLE device.
*
* For efficiency, and because 16 bytes would take a large chunk of the
* 27-byte data payload length of the Link Layer, the BLE specification adds
* two additional UUID formats: 16-bit and 32-bit UUIDs. These shortened
* formats can be used only with UUIDs that are defined in the Bluetooth
* specification (i.e., that are listed by the Bluetooth SIG as standard
* Bluetooth UUIDs).
*
* To reconstruct the full 128-bit UUID from the shortened version, insert
* the 16-bit short value (indicated by xxxx, including leading zeros) into
* the Bluetooth Base UUID:
*
* 0000xxxx-0000-1000-8000-00805F9B34FB
*
* @note Shortening is not available for UUIDs that are not derived from the
* Bluetooth Base UUID. Such non-standard UUIDs are commonly called
* vendor-specific UUIDs. In these cases, you’ll need to use the full
* 128-bit UUID value at all times.
*
* @note we don't yet support 32-bit shortened UUIDs.
*/
UUID(ShortUUIDBytes_t shortUUID) : type(UUID_TYPE_SHORT), baseUUID(), shortUUID(shortUUID) {
/* empty */
}
public:
UUID_Type_t shortOrLong(void) const {return type; }
@ -43,12 +84,25 @@ public:
return baseUUID;
}
}
ShortUUIDBytes_t getShortUUID(void) const {return shortUUID;}
uint8_t getLen(void) const {
return ((type == UUID_TYPE_SHORT) ? sizeof(ShortUUIDBytes_t) : LENGTH_OF_LONG_UUID);
}
bool operator== (const UUID&) const;
bool operator== (const UUID &other) const {
if ((this->type == UUID_TYPE_SHORT) && (other.type == UUID_TYPE_SHORT) &&
(this->shortUUID == other.shortUUID)) {
return true;
}
if ((this->type == UUID_TYPE_LONG) && (other.type == UUID_TYPE_LONG) &&
(memcmp(this->baseUUID, other.baseUUID, LENGTH_OF_LONG_UUID) == 0)) {
return true;
}
return false;
}
private:
UUID_Type_t type; // UUID_TYPE_SHORT or UUID_TYPE_LONG