96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
#include "../../osal/FreeRTOS/BinSemaphUsingTask.h"
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#include "../../osal/FreeRTOS/TaskManagement.h"
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#include "../../serviceinterface/ServiceInterfaceStream.h"
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BinarySemaphoreUsingTask::BinarySemaphoreUsingTask() {
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handle = TaskManagement::getCurrentTaskHandle();
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if(handle == nullptr) {
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sif::error << "Could not retrieve task handle. Please ensure the"
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"constructor was called inside a task." << std::endl;
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}
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xTaskNotifyGive(handle);
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}
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BinarySemaphoreUsingTask::~BinarySemaphoreUsingTask() {
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// Clear notification value on destruction.
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xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, nullptr);
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}
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ReturnValue_t BinarySemaphoreUsingTask::acquire(TimeoutType timeoutType,
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uint32_t timeoutMs) {
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TickType_t timeout = 0;
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if(timeoutType == TimeoutType::POLLING) {
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timeout = 0;
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}
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else if(timeoutType == TimeoutType::WAITING){
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timeout = pdMS_TO_TICKS(timeoutMs);
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}
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else {
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timeout = portMAX_DELAY;
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}
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return acquireWithTickTimeout(timeoutType, timeout);
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}
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ReturnValue_t BinarySemaphoreUsingTask::acquireWithTickTimeout(
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TimeoutType timeoutType, TickType_t timeoutTicks) {
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BaseType_t returncode = ulTaskNotifyTake(pdTRUE, timeoutTicks);
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if (returncode == pdPASS) {
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return HasReturnvaluesIF::RETURN_OK;
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}
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else {
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return SemaphoreIF::SEMAPHORE_TIMEOUT;
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}
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}
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ReturnValue_t BinarySemaphoreUsingTask::release() {
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return release(this->handle);
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}
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ReturnValue_t BinarySemaphoreUsingTask::release(
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TaskHandle_t taskHandle) {
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if(getSemaphoreCounter(taskHandle) == 1) {
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return SemaphoreIF::SEMAPHORE_NOT_OWNED;
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}
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BaseType_t returncode = xTaskNotifyGive(taskHandle);
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if (returncode == pdPASS) {
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return HasReturnvaluesIF::RETURN_OK;
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}
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else {
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// This should never happen.
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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}
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TaskHandle_t BinarySemaphoreUsingTask::getTaskHandle() {
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return handle;
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}
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uint8_t BinarySemaphoreUsingTask::getSemaphoreCounter() const {
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return getSemaphoreCounter(this->handle);
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}
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uint8_t BinarySemaphoreUsingTask::getSemaphoreCounter(
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TaskHandle_t taskHandle) {
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uint32_t notificationValue;
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xTaskNotifyAndQuery(taskHandle, 0, eNoAction, ¬ificationValue);
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return notificationValue;
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}
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// Be careful with the stack size here. This is called from an ISR!
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ReturnValue_t BinarySemaphoreUsingTask::releaseFromISR(
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TaskHandle_t taskHandle, BaseType_t * higherPriorityTaskWoken) {
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if(getSemaphoreCounterFromISR(taskHandle, higherPriorityTaskWoken) == 1) {
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return SemaphoreIF::SEMAPHORE_NOT_OWNED;
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}
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vTaskNotifyGiveFromISR(taskHandle, higherPriorityTaskWoken);
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return HasReturnvaluesIF::RETURN_OK;
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}
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uint8_t BinarySemaphoreUsingTask::getSemaphoreCounterFromISR(
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TaskHandle_t taskHandle, BaseType_t* higherPriorityTaskWoken) {
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uint32_t notificationValue = 0;
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xTaskNotifyAndQueryFromISR(taskHandle, 0, eNoAction, ¬ificationValue,
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higherPriorityTaskWoken);
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return notificationValue;
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}
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