Nigel Rantor / azure_c_shared_utility

Azure IoT common library

Fork of azure_c_shared_utility by Azure IoT

tickcounter_mbed.cpp@19:2e0811512ceb, 2017-01-28 (annotated)

Committer:
AzureIoTClient
Date:
Sat Jan 28 09:35:22 2017 -0800
Revision:
19:2e0811512ceb
Parent:
16:18e7ebd42bb2
Child:
21:b92006c5b9ff
1.1.6

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Azure.IoT Build 0:fa2de1b79154 1 // Copyright (c) Microsoft. All rights reserved.
Azure.IoT Build 0:fa2de1b79154 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
Azure.IoT Build 0:fa2de1b79154 3
Azure.IoT Build 0:fa2de1b79154 4 #include "mbed.h"
Azure.IoT Build 0:fa2de1b79154 5 #include "azure_c_shared_utility/tickcounter.h"
Azure.IoT Build 0:fa2de1b79154 6
Azure.IoT Build 0:fa2de1b79154 7 class TICK_COUNTER_INSTANCE_TAG
Azure.IoT Build 0:fa2de1b79154 8 {
Azure.IoT Build 0:fa2de1b79154 9 public:
Azure.IoT Build 0:fa2de1b79154 10 clock_t last_clock_value;
Azure.IoT.Build 16:18e7ebd42bb2 11 tickcounter_ms_t current_ms;
Azure.IoT Build 0:fa2de1b79154 12 };
Azure.IoT Build 0:fa2de1b79154 13
Azure.IoT Build 0:fa2de1b79154 14 TICK_COUNTER_HANDLE tickcounter_create(void)
Azure.IoT Build 0:fa2de1b79154 15 {
Azure.IoT Build 0:fa2de1b79154 16 TICK_COUNTER_INSTANCE_TAG* result;
Azure.IoT Build 0:fa2de1b79154 17 result = new TICK_COUNTER_INSTANCE_TAG();
Azure.IoT Build 0:fa2de1b79154 18 result->last_clock_value = clock();
Azure.IoT Build 0:fa2de1b79154 19 result->current_ms = result->last_clock_value * 1000 / CLOCKS_PER_SEC;
Azure.IoT Build 0:fa2de1b79154 20 return result;
Azure.IoT Build 0:fa2de1b79154 21 }
Azure.IoT Build 0:fa2de1b79154 22
Azure.IoT Build 0:fa2de1b79154 23 void tickcounter_destroy(TICK_COUNTER_HANDLE tick_counter)
Azure.IoT Build 0:fa2de1b79154 24 {
Azure.IoT Build 0:fa2de1b79154 25 if (tick_counter != NULL)
Azure.IoT Build 0:fa2de1b79154 26 {
Azure.IoT Build 0:fa2de1b79154 27 delete tick_counter;
Azure.IoT Build 0:fa2de1b79154 28 }
Azure.IoT Build 0:fa2de1b79154 29 }
Azure.IoT Build 0:fa2de1b79154 30
Azure.IoT.Build 16:18e7ebd42bb2 31 int tickcounter_get_current_ms(TICK_COUNTER_HANDLE tick_counter, tickcounter_ms_t * current_ms)
Azure.IoT Build 0:fa2de1b79154 32 {
Azure.IoT Build 0:fa2de1b79154 33 int result;
Azure.IoT Build 0:fa2de1b79154 34 if (tick_counter == NULL || current_ms == NULL)
Azure.IoT Build 0:fa2de1b79154 35 {
Azure.IoT Build 0:fa2de1b79154 36 result = __LINE__;
Azure.IoT Build 0:fa2de1b79154 37 }
Azure.IoT Build 0:fa2de1b79154 38 else
Azure.IoT Build 0:fa2de1b79154 39 {
Azure.IoT Build 0:fa2de1b79154 40 TICK_COUNTER_INSTANCE_TAG* tick_counter_instance = (TICK_COUNTER_INSTANCE_TAG*)tick_counter;
Azure.IoT Build 0:fa2de1b79154 41
Azure.IoT Build 0:fa2de1b79154 42 clock_t clock_value = clock();
Azure.IoT Build 0:fa2de1b79154 43
Azure.IoT Build 0:fa2de1b79154 44 tick_counter_instance->current_ms += (clock_value - tick_counter_instance->last_clock_value) * 1000 / CLOCKS_PER_SEC;
Azure.IoT Build 0:fa2de1b79154 45 tick_counter_instance->last_clock_value = clock_value;
Azure.IoT Build 0:fa2de1b79154 46 *current_ms = tick_counter_instance->current_ms;
Azure.IoT Build 0:fa2de1b79154 47
Azure.IoT Build 0:fa2de1b79154 48 result = 0;
Azure.IoT Build 0:fa2de1b79154 49 }
Azure.IoT Build 0:fa2de1b79154 50 return result;
Azure.IoT Build 0:fa2de1b79154 51 }