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v3.7.0 - optional self-destruct of tasks on disable
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...r_example19_Dynamic_Tasks_SelfDestruct/Scheduler_example19_Dynamic_Tasks_SelfDestruct.ino
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| /** | ||
| TaskScheduler Test sketch - test of Task destructor | ||
| Test case: | ||
| Main task runs every 100 milliseconds 100 times and in 50% cases generates a task object | ||
| which runs 1 to 10 times with 100 ms to 5 s interval, and then destroyed. | ||
| Self-destruct feature takes care of the task deletion after tasks complete | ||
| This sketch uses the following libraries: | ||
| - FreeMemory library: https://github.com/McNeight/MemoryFree | ||
| - QueueArray library: https://playground.arduino.cc/Code/QueueArray/ | ||
| */ | ||
|
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| #define _TASK_WDT_IDS // To enable task unique IDs | ||
| #define _TASK_SLEEP_ON_IDLE_RUN // Compile with support for entering IDLE SLEEP state for 1 ms if not tasks are scheduled to run | ||
| #define _TASK_LTS_POINTER // Compile with support for Local Task Storage pointer | ||
| #define _TASK_SELF_DESTRUCT // Enable tasks to "self-destruct" after disable | ||
| #include <TaskScheduler.h> | ||
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| int freeMemory(); | ||
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| #if defined (ARDUINO_ARCH_AVR) | ||
| #include <MemoryFree.h> | ||
| #elif defined(__arm__) | ||
| extern "C" char* sbrk(int incr); | ||
| static int freeMemory() { | ||
| char top = 't'; | ||
| return &top - reinterpret_cast<char*>(sbrk(0)); | ||
| } | ||
| #elif defined (ARDUINO_ARCH_ESP8266) || defined (ARDUINO_ARCH_ESP32) | ||
| int freeMemory() { return ESP.getFreeHeap();} | ||
| #else | ||
| // Supply your own freeMemory method | ||
| int freeMemory() { return 0;} | ||
| #endif | ||
|
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| Scheduler ts; | ||
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| // Callback methods prototypes | ||
| void MainLoop(); | ||
| void GC(); | ||
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| // Statis task | ||
| Task tMain(100 * TASK_MILLISECOND, 100, &MainLoop, &ts, true); | ||
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| void Iteration(); | ||
| bool OnEnable(); | ||
| void OnDisable(); | ||
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| int noOfTasks = 0; | ||
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| void MainLoop() { | ||
| Serial.print(millis()); Serial.print("\t"); | ||
| Serial.print("MainLoop run: "); | ||
| int i = tMain.getRunCounter(); | ||
| Serial.print(i); Serial.print(F(".\t")); | ||
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| if ( random(0, 101) > 50 ) { // generate a new task only in 50% of cases | ||
| // Generating another task | ||
| long p = random(100, 5001); // from 100 ms to 5 seconds | ||
| long j = random(1, 11); // from 1 to 10 iterations) | ||
| Task *t = new Task(p, j, Iteration, &ts, false, OnEnable, OnDisable, true); // enable self-destruct | ||
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| Serial.print(F("Generated a new task:\t")); Serial.print(t->getId()); Serial.print(F("\tInt, Iter = \t")); | ||
| Serial.print(p); Serial.print(", "); Serial.print(j); | ||
| Serial.print(F("\tFree mem=")); Serial.print(freeMemory()); | ||
| Serial.print(F("\tNo of tasks=")); Serial.println(++noOfTasks); | ||
| t->enable(); | ||
| } | ||
| else { | ||
| Serial.println(F("Skipped generating a task")); | ||
| } | ||
| } | ||
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| void Iteration() { | ||
| Task &t = ts.currentTask(); | ||
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| Serial.print(millis()); Serial.print("\t"); | ||
| Serial.print("Task N"); Serial.print(t.getId()); Serial.print(F("\tcurrent iteration: ")); | ||
| int i = t.getRunCounter(); | ||
| Serial.println(i); | ||
| } | ||
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| bool OnEnable() { | ||
| // to-do: think of something to put in here. | ||
| return true; | ||
| } | ||
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| void OnDisable() { | ||
| Task *t = &ts.currentTask(); | ||
| unsigned int tid = t->getId(); | ||
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| Serial.print(millis()); Serial.print("\t"); | ||
| Serial.print("Task N"); Serial.print(tid); Serial.println(F("\tfinished")); | ||
| Serial.print(F("\tNo of tasks=")); Serial.println(--noOfTasks); | ||
| } | ||
|
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| /** | ||
| Standard Arduino setup and loop methods | ||
| */ | ||
| void setup() { | ||
| Serial.begin(115200); | ||
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| randomSeed(analogRead(0) + analogRead(5)); | ||
| noOfTasks = 0; | ||
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| Serial.println(F("Dynamic Task Creation/Destruction Example")); | ||
| Serial.println(); | ||
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| Serial.print(F("Free mem=")); Serial.print(freeMemory()); | ||
| Serial.print(F("\tNo of tasks=")); Serial.println(noOfTasks); | ||
| Serial.println(); | ||
| } | ||
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| void loop() { | ||
| ts.execute(); | ||
| if ( millis() > 5000 && noOfTasks == 0 ) { | ||
| Serial.print(F("\tFree mem=")); Serial.println(freeMemory()); | ||
| while(1); | ||
| } | ||
| } |
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