Diff: check_task.cpp

Revision:

4:48761259552a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/check_task.cpp	Tue Mar 14 14:46:43 2017 +0000
@@ -0,0 +1,73 @@
+/**
+ * The following task checks the digital inputs on pin11 and pin12
+ * it also checks for "errors" and save the error code to the state.
+ * If pin12 is 1, it schedules the counting task.
+ *
+ * Author: Jacob Baungard Hansen
+ */
+
+#include "check_task.h"
+
+/**
+ *
+ * @param starting_offset       when the task should but run first
+ * @param frequency_ms          the frequency in ms of how often the task should run
+ */
+CheckTask::CheckTask(int starting_offset, int frequency_ms,
+                                                                     State * state, TaskManager * tm)
+                                    : Task(starting_offset, frequency_ms) {
+                                        
+    this->state = state;
+    this->tm = tm;
+    this->counting_task = new CountingTask(0, 1800);
+    this->counting_scheduled = 0;
+    this->digital_in_1 = new DigitalIn(p11);
+    this->digital_in_2 = new DigitalIn(p12);
+    
+}
+
+/*
+ * Simple destructor
+ */
+CheckTask::~CheckTask() {
+    delete this->counting_task;
+    delete this->digital_in_1;
+    delete this->digital_in_2;
+}
+
+/** 
+ * The function that is run at the specified frequency.
+ */
+void CheckTask::action() {
+    
+    // get the digital values
+    int switch_1 = digital_in_1->read();
+    int switch_2 = digital_in_2->read();
+    
+    // save to the state
+    this->state->set_digital_1(switch_1);
+    this->state->set_digital_2(switch_2);
+
+    // check possible error codes
+    if (switch_1 == 1 && (this->state->get_avg_analog_1() > this->state->get_avg_analog_2() ) ) {
+        this->state->set_error(3);
+    } else {
+        this->state->set_error(0);
+    }
+    
+    // schedule or deschedule counting task as appropriate
+    if (switch_2 == 1 && this->counting_scheduled == 0) {
+        // schedule binary LED task
+        this->counting_scheduled = 1;
+        // set the binary LED task next run
+        int next_run = this->get_next_run_ms()+300;
+        this->counting_task->set_next_run_ms(next_run);
+        // add task to task manager
+        this->tm->add_task(this->counting_task);
+    } else if (switch_2 == 0) {
+        // delete task from task manager
+        this->tm->remove_task(this->counting_task);
+        this->counting_scheduled = 0;
+    }
+
+}
\ No newline at end of file