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/** This test demonstrates interaction between three simple tasks via StatusRequest object.
* Task T1 runs every 5 seconds and signals completion of a status request st.
* Tasks T2 and T3 are waiting on the same request (st)
* Task T3 does not renew its interest in status request st, so it is only invoked once (first iteration)
* Task T2 is invoked every time st completes, because it renews its interest in status of status request object st every iteration of T1
*/
#define _TASK_SLEEP_ON_IDLE_RUN
#define _TASK_STATUS_REQUEST
#include <TaskScheduler.h>
StatusRequest st;
Scheduler ts;
// Callback methods prototypes
void Callback1();
void Disable1();
void Callback2();
void Callback3();
void PrepareStatus();
// Tasks
Task t1(5000, TASK_ONCE, &Callback1, &ts, true, NULL, &Disable1);
Task t2(&Callback2, &ts);
Task t3(&Callback3, &ts);
/** T1 callback
* T1 just signals completion of st every 5 seconds
*/
void Callback1() {
Serial.println("T1: Signaling completion of ST");
st.signalComplete();
}
/** T1 On Disable callback
* This callback renews the status request and restarts T1 delayed to run again in 5 seconds
*/
void Disable1() {
PrepareStatus();
t1.restartDelayed();
}
/** T2 callback
* Invoked when status request st completes
*/
void Callback2() {
Serial.println("T2: Invoked due to completion of ST");
}
/** T3 callback
* Invoked when status request st completes.
* This is only run once since T3 does not renew its interest in the status request st after first iteration
*/
void Callback3() {
Serial.println("T3: Invoked due to completion of ST");
}
/** Prepare Status request st for another iteration
*
*/
void PrepareStatus() {
st.setWaiting(); // set the statusrequest object for waiting
t2.waitFor(&st); // request tasks 1 & 2 to wait on the object st
}
/** Main Arduino code
* Not much to do here. Just init Serial and set the initial status request
*/
void setup() {
Serial.begin(115200);
Serial.println("TaskScheduler: Status Request Test 1. Simple Test.");
PrepareStatus();
t3.waitFor(&st);
t1.delay();
}
void loop() {
ts.execute();
}
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