Diff: BLE_API/common/UUID.cpp

Revision:

16:3c873f2c8a27

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/BLE_API/common/UUID.cpp	Sat Jul 11 01:57:40 2015 +0000
@@ -0,0 +1,88 @@
+/* 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;
+}
\ No newline at end of file