Julian Higginson / Mbed 2 deprecated FXOS8700CQ_To_Azure_IoT

WIP. send a large constant string twice a second, in order to test out the transport with something indicative of our required load.

Dependencies:   FXOS8700CQ NTPClient azure_umqtt_c iothub_mqtt_transport mbed-rtos mbed wolfSSL Socket lwip-eth lwip-sys lwip

Fork of FXOS8700CQ_To_Azure_IoT by Mark Radbourne

azure_c_shared_utility/uniqueid_stub.c@7:0d1a0fe537dc, 2017-01-05 (annotated)

Committer:
julianhigginson
Date:
Thu Jan 05 23:40:24 2017 +0000
Revision:
7:0d1a0fe537dc
Parent:
3:c0556ff7b8e3 
modified dummy message for minimal data transport

Who changed what in which revision?

UserRevisionLine numberNew contents of line
markrad 3:c0556ff7b8e3 1 // Copyright (c) Microsoft. All rights reserved.
markrad 3:c0556ff7b8e3 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
markrad 3:c0556ff7b8e3 3
markrad 3:c0556ff7b8e3 4 #include <stdlib.h>
markrad 3:c0556ff7b8e3 5 #include <stdint.h>
markrad 3:c0556ff7b8e3 6 #include "azure_c_shared_utility/uniqueid.h"
markrad 3:c0556ff7b8e3 7 #include "azure_c_shared_utility/xlogging.h"
markrad 3:c0556ff7b8e3 8 #include <time.h>
markrad 3:c0556ff7b8e3 9
markrad 3:c0556ff7b8e3 10 DEFINE_ENUM_STRINGS(UNIQUEID_RESULT, UNIQUEID_RESULT_VALUES);
markrad 3:c0556ff7b8e3 11
markrad 3:c0556ff7b8e3 12 static const char tochar[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F' };
markrad 3:c0556ff7b8e3 13 static void generate128BitUUID(unsigned char* arrayOfByte)
markrad 3:c0556ff7b8e3 14 {
markrad 3:c0556ff7b8e3 15 size_t arrayIndex;
markrad 3:c0556ff7b8e3 16
markrad 3:c0556ff7b8e3 17 for (arrayIndex = 0; arrayIndex < 16; arrayIndex++)
markrad 3:c0556ff7b8e3 18 {
markrad 3:c0556ff7b8e3 19 arrayOfByte[arrayIndex] = (unsigned char)rand();
markrad 3:c0556ff7b8e3 20 }
markrad 3:c0556ff7b8e3 21
markrad 3:c0556ff7b8e3 22 //
markrad 3:c0556ff7b8e3 23 // Stick in the version field for random uuid.
markrad 3:c0556ff7b8e3 24 //
markrad 3:c0556ff7b8e3 25 arrayOfByte[7] &= 0x0f; //clear the bit field
markrad 3:c0556ff7b8e3 26 arrayOfByte[7] |= 0x40; //set the ones we care about
markrad 3:c0556ff7b8e3 27
markrad 3:c0556ff7b8e3 28 //
markrad 3:c0556ff7b8e3 29 // Stick in the variant field for the random uuid.
markrad 3:c0556ff7b8e3 30 //
markrad 3:c0556ff7b8e3 31 arrayOfByte[8] &= 0xf3; // Clear
markrad 3:c0556ff7b8e3 32 arrayOfByte[8] |= 0x08; // Set
markrad 3:c0556ff7b8e3 33
markrad 3:c0556ff7b8e3 34 }
markrad 3:c0556ff7b8e3 35
markrad 3:c0556ff7b8e3 36 // TODO: The User will need to call srand before calling this function
markrad 3:c0556ff7b8e3 37 UNIQUEID_RESULT UniqueId_Generate(char* uid, size_t len)
markrad 3:c0556ff7b8e3 38 {
markrad 3:c0556ff7b8e3 39 UNIQUEID_RESULT result;
markrad 3:c0556ff7b8e3 40 unsigned char arrayOfChar[16];
markrad 3:c0556ff7b8e3 41
markrad 3:c0556ff7b8e3 42 /* Codes_SRS_UNIQUEID_07_002: [If uid is NULL then UniqueId_Generate shall return UNIQUEID_INVALID_ARG] */
markrad 3:c0556ff7b8e3 43 /* Codes_SRS_UNIQUEID_07_003: [If len is less then 37 then UniqueId_Generate shall return UNIQUEID_INVALID_ARG] */
markrad 3:c0556ff7b8e3 44 if (uid == NULL || len < 37)
markrad 3:c0556ff7b8e3 45 {
markrad 3:c0556ff7b8e3 46 result = UNIQUEID_INVALID_ARG;
markrad 3:c0556ff7b8e3 47 LogError("Buffer Size is Null or length is less then 37 bytes");
markrad 3:c0556ff7b8e3 48 }
markrad 3:c0556ff7b8e3 49 else
markrad 3:c0556ff7b8e3 50 {
markrad 3:c0556ff7b8e3 51 size_t arrayIndex;
markrad 3:c0556ff7b8e3 52 size_t shiftCount;
markrad 3:c0556ff7b8e3 53 size_t characterPosition = 0;
markrad 3:c0556ff7b8e3 54
markrad 3:c0556ff7b8e3 55 /* Codes_SRS_UNIQUEID_07_001: [UniqueId_Generate shall create a unique Id 36 character long string.] */
markrad 3:c0556ff7b8e3 56 generate128BitUUID(arrayOfChar);
markrad 3:c0556ff7b8e3 57 for (arrayIndex = 0; arrayIndex < 16; arrayIndex++)
markrad 3:c0556ff7b8e3 58 {
markrad 3:c0556ff7b8e3 59 for (shiftCount = 0; shiftCount <= 1; shiftCount++)
markrad 3:c0556ff7b8e3 60 {
markrad 3:c0556ff7b8e3 61 char hexChar = tochar[arrayOfChar[arrayIndex] & 0xf];
markrad 3:c0556ff7b8e3 62 if ((characterPosition == 8) || (characterPosition == 13) || (characterPosition == 18) || (characterPosition == 23))
markrad 3:c0556ff7b8e3 63 {
markrad 3:c0556ff7b8e3 64 uid[characterPosition] = '-';
markrad 3:c0556ff7b8e3 65 characterPosition++;
markrad 3:c0556ff7b8e3 66 }
markrad 3:c0556ff7b8e3 67 uid[characterPosition] = hexChar;
markrad 3:c0556ff7b8e3 68 characterPosition++;
markrad 3:c0556ff7b8e3 69 arrayOfChar[arrayIndex] = arrayOfChar[arrayIndex] >> 4;
markrad 3:c0556ff7b8e3 70 }
markrad 3:c0556ff7b8e3 71 }
markrad 3:c0556ff7b8e3 72 uid[characterPosition] = 0;
markrad 3:c0556ff7b8e3 73 result = UNIQUEID_OK;
markrad 3:c0556ff7b8e3 74 }
markrad 3:c0556ff7b8e3 75 return result;
markrad 3:c0556ff7b8e3 76 }