From f388bd374c8db334b5d7b0b9207a360d712d5fde Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Fri, 29 May 2020 13:29:29 +0200 Subject: [PATCH 01/13] added new factory and interface --- tasks/SemaphoreFactory.h | 49 ++++++++++++++++++++++++++++++++ tasks/SemaphoreIF.h | 61 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 110 insertions(+) create mode 100644 tasks/SemaphoreFactory.h create mode 100644 tasks/SemaphoreIF.h diff --git a/tasks/SemaphoreFactory.h b/tasks/SemaphoreFactory.h new file mode 100644 index 00000000..7f8edaf1 --- /dev/null +++ b/tasks/SemaphoreFactory.h @@ -0,0 +1,49 @@ +#ifndef FRAMEWORK_TASKS_SEMAPHOREFACTORY_H_ +#define FRAMEWORK_TASKS_SEMAPHOREFACTORY_H_ +#include + +/** + * Creates Semaphore. + * This class is a "singleton" interface, i.e. it provides an + * interface, but also is the base class for a singleton. + */ +class SemaphoreFactory { +public: + virtual ~SemaphoreFactory(); + /** + * Returns the single instance of SemaphoreFactory. + * The implementation of #instance is found in its subclasses. + * Thus, we choose link-time variability of the instance. + */ + static SemaphoreFactory* instance(); + + /** + * Create a binary semaphore. + * Creator function for a binary semaphore which may only be acquired once + * @param argument Can be used to pass implementation specific information. + * @return Pointer to newly created semaphore class instance. + */ + SemaphoreIF* createBinarySemaphore(uint32_t arguments = 0); + /** + * Create a counting semaphore. + * Creator functons for a counting semaphore which may be acquired multiple + * times. + * @param count Semaphore can be taken count times. + * @param initCount Initial count value. + * @param argument Can be used to pass implementation specific information. + * @return + */ + SemaphoreIF* createCountingSemaphore(const uint8_t maxCount, + uint8_t initCount, uint32_t arguments = 0); + + void deleteSemaphore(SemaphoreIF* semaphore); + +private: + /** + * External instantiation is not allowed. + */ + SemaphoreFactory(); + static SemaphoreFactory* factoryInstance; +}; + +#endif /* FRAMEWORK_TASKS_SEMAPHOREFACTORY_H_ */ diff --git a/tasks/SemaphoreIF.h b/tasks/SemaphoreIF.h new file mode 100644 index 00000000..a7c5a97b --- /dev/null +++ b/tasks/SemaphoreIF.h @@ -0,0 +1,61 @@ +#ifndef FRAMEWORK_TASKS_SEMAPHOREIF_H_ +#define FRAMEWORK_TASKS_SEMAPHOREIF_H_ +#include +#include +#include + +/** + * @brief Generic interface for semaphores, which can be used to achieve + * task synchronization. This is a generic interface which can be + * used for both binary semaphores and counting semaphores. + * @details + * A semaphore is a synchronization primitive. + * See: https://en.wikipedia.org/wiki/Semaphore_(programming) + * A semaphore can be used to achieve task synchonization and track the + * availability of resources by using either the binary or the counting + * semaphore types. + * + * If mutual exlcusion of a resource is desired, a mutex should be used, + * which is a special form of a semaphore and has an own interface. + */ +class SemaphoreIF { +public: + virtual~ SemaphoreIF() {}; + //! Needs to be defined in implementation. No blocking time + static const uint32_t NO_TIMEOUT; + //! Needs to be defined in implementation. Blocks indefinitely. + static const uint32_t MAX_TIMEOUT; + static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; + //! Semaphore timeout + static constexpr ReturnValue_t SEMAPHORE_TIMEOUT = MAKE_RETURN_CODE(1); + //! The current semaphore can not be given, because it is not owned + static constexpr ReturnValue_t SEMAPHORE_NOT_OWNED = MAKE_RETURN_CODE(2); + static constexpr ReturnValue_t SEMAPHORE_INVALID = MAKE_RETURN_CODE(3); + + /** + * Generic call to acquire a semaphore. + * If there are no more semaphores to be taken (for a counting semaphore, + * a semaphore may be taken more than once), the taks will block + * for a maximum of timeoutMs while trying to acquire the semaphore. + * This can be used to achieve task synchrnization. + * @param timeoutMs + * @return - c RETURN_OK for successfull acquisition + */ + virtual ReturnValue_t acquire(uint32_t timeoutMs) = 0; + + /** + * Corrensponding call to release a semaphore. + * @return -@c RETURN_OK for successfull release + */ + virtual ReturnValue_t release() = 0; + + /** + * If the semaphore is a counting semaphore then the semaphores current + * count value is returned. If the semaphore is a binary semaphore then 1 + * is returned if the semaphore is available, and 0 is returned if the + * semaphore is not available. + */ + virtual uint8_t getSemaphoreCounter() const = 0; +}; + +#endif /* FRAMEWORK_TASKS_SEMAPHOREIF_H_ */ From d909fcb6a17448a3f2ccd3c7c9512a666a429e33 Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Fri, 29 May 2020 13:31:19 +0200 Subject: [PATCH 02/13] added semaphore implementations --- osal/FreeRTOS/BinSemaphUsingTask.cpp | 91 ++++++++++++++++++ osal/FreeRTOS/BinSemaphUsingTask.h | 75 +++++++++++++++ osal/FreeRTOS/BinarySemaphore.cpp | 103 ++++++++++++++++++++ osal/FreeRTOS/BinarySemaphore.h | 107 +++++++++++++++++++++ osal/FreeRTOS/CountingSemaphUsingTask.cpp | 110 ++++++++++++++++++++++ osal/FreeRTOS/CountingSemaphUsingTask.h | 100 ++++++++++++++++++++ osal/FreeRTOS/CountingSemaphore.cpp | 43 +++++++++ osal/FreeRTOS/CountingSemaphore.h | 34 +++++++ 8 files changed, 663 insertions(+) create mode 100644 osal/FreeRTOS/BinSemaphUsingTask.cpp create mode 100644 osal/FreeRTOS/BinSemaphUsingTask.h create mode 100644 osal/FreeRTOS/BinarySemaphore.cpp create mode 100644 osal/FreeRTOS/BinarySemaphore.h create mode 100644 osal/FreeRTOS/CountingSemaphUsingTask.cpp create mode 100644 osal/FreeRTOS/CountingSemaphUsingTask.h create mode 100644 osal/FreeRTOS/CountingSemaphore.cpp create mode 100644 osal/FreeRTOS/CountingSemaphore.h diff --git a/osal/FreeRTOS/BinSemaphUsingTask.cpp b/osal/FreeRTOS/BinSemaphUsingTask.cpp new file mode 100644 index 00000000..8f5fd4d8 --- /dev/null +++ b/osal/FreeRTOS/BinSemaphUsingTask.cpp @@ -0,0 +1,91 @@ +#include +#include +#include + +BinarySemaphoreUsingTask::BinarySemaphoreUsingTask() { + handle = TaskManagement::getCurrentTaskHandle(); + if(handle == nullptr) { + sif::error << "Could not retrieve task handle. Please ensure the" + "constructor was called inside a task." << std::endl; + } + xTaskNotifyGive(handle); +} + +BinarySemaphoreUsingTask::~BinarySemaphoreUsingTask() { + // Clear notification value on destruction. + xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, nullptr); +} + +ReturnValue_t BinarySemaphoreUsingTask::acquire(uint32_t timeoutMs) { + TickType_t timeout = SemaphoreIF::NO_TIMEOUT; + if(timeoutMs == SemaphoreIF::MAX_TIMEOUT) { + timeout = SemaphoreIF::MAX_TIMEOUT; + } + else if(timeoutMs > SemaphoreIF::NO_TIMEOUT){ + timeout = pdMS_TO_TICKS(timeoutMs); + } + return acquireWithTickTimeout(timeout); +} + +ReturnValue_t BinarySemaphoreUsingTask::acquireWithTickTimeout( + TickType_t timeoutTicks) { + BaseType_t returncode = ulTaskNotifyTake(pdTRUE, timeoutTicks); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + return SemaphoreIF::SEMAPHORE_TIMEOUT; + } +} + +ReturnValue_t BinarySemaphoreUsingTask::release() { + return release(this->handle); +} + +ReturnValue_t BinarySemaphoreUsingTask::release( + TaskHandle_t taskHandle) { + if(getSemaphoreCounter(taskHandle) == 1) { + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } + BaseType_t returncode = xTaskNotifyGive(taskHandle); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + // This should never happen. + return HasReturnvaluesIF::RETURN_FAILED; + } +} + +TaskHandle_t BinarySemaphoreUsingTask::getTaskHandle() { + return handle; +} + +uint8_t BinarySemaphoreUsingTask::getSemaphoreCounter() const { + return getSemaphoreCounter(this->handle); +} + +uint8_t BinarySemaphoreUsingTask::getSemaphoreCounter( + TaskHandle_t taskHandle) { + uint32_t notificationValue; + xTaskNotifyAndQuery(taskHandle, 0, eNoAction, ¬ificationValue); + return notificationValue; +} + +// Be careful with the stack size here. This is called from an ISR! +ReturnValue_t BinarySemaphoreUsingTask::releaseFromISR( + TaskHandle_t taskHandle, BaseType_t * higherPriorityTaskWoken) { + if(getSemaphoreCounterFromISR(taskHandle, higherPriorityTaskWoken) == 1) { + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } + vTaskNotifyGiveFromISR(taskHandle, higherPriorityTaskWoken); + return HasReturnvaluesIF::RETURN_OK; +} + +uint8_t BinarySemaphoreUsingTask::getSemaphoreCounterFromISR( + TaskHandle_t taskHandle, BaseType_t* higherPriorityTaskWoken) { + uint32_t notificationValue = 0; + xTaskNotifyAndQueryFromISR(taskHandle, 0, eNoAction, ¬ificationValue, + higherPriorityTaskWoken); + return notificationValue; +} diff --git a/osal/FreeRTOS/BinSemaphUsingTask.h b/osal/FreeRTOS/BinSemaphUsingTask.h new file mode 100644 index 00000000..48c1cd12 --- /dev/null +++ b/osal/FreeRTOS/BinSemaphUsingTask.h @@ -0,0 +1,75 @@ +#ifndef FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ +#define FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ + +#include +#include + +#include +#include + +/** + * @brief Binary Semaphore implementation using the task notification value. + * The notification value should therefore not be used + * for other purposes. + * @details + * Additional information: https://www.freertos.org/RTOS-task-notifications.html + * and general semaphore documentation. + */ +class BinarySemaphoreUsingTask: public SemaphoreIF, + public HasReturnvaluesIF { +public: + static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; + + //! @brief Default ctor + BinarySemaphoreUsingTask(); + //! @brief Default dtor + virtual~ BinarySemaphoreUsingTask(); + + ReturnValue_t acquire(uint32_t timeoutMs = + SemaphoreIF::NO_TIMEOUT) override; + ReturnValue_t release() override; + uint8_t getSemaphoreCounter() const override; + static uint8_t getSemaphoreCounter(TaskHandle_t taskHandle); + static uint8_t getSemaphoreCounterFromISR(TaskHandle_t taskHandle, + BaseType_t* higherPriorityTaskWoken); + + /** + * Same as acquire() with timeout in FreeRTOS ticks. + * @param timeoutTicks + * @return - @c RETURN_OK on success + * - @c RETURN_FAILED on failure + */ + ReturnValue_t acquireWithTickTimeout(TickType_t timeoutTicks = + SemaphoreIF::NO_TIMEOUT); + + /** + * Get handle to the task related to the semaphore. + * @return + */ + TaskHandle_t getTaskHandle(); + + /** + * Wrapper function to give back semaphore from handle + * @param semaphore + * @return - @c RETURN_OK on success + * - @c RETURN_FAILED on failure + */ + static ReturnValue_t release(TaskHandle_t taskToNotify); + + /** + * Wrapper function to give back semaphore from handle when called from an ISR + * @param semaphore + * @param higherPriorityTaskWoken This will be set to pdPASS if a task with + * a higher priority was unblocked. A context switch should be requested + * from an ISR if this is the case (see TaskManagement functions) + * @return - @c RETURN_OK on success + * - @c RETURN_FAILED on failure + */ + static ReturnValue_t releaseFromISR(TaskHandle_t taskToNotify, + BaseType_t * higherPriorityTaskWoken); + +protected: + TaskHandle_t handle; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ */ diff --git a/osal/FreeRTOS/BinarySemaphore.cpp b/osal/FreeRTOS/BinarySemaphore.cpp new file mode 100644 index 00000000..b6687bb7 --- /dev/null +++ b/osal/FreeRTOS/BinarySemaphore.cpp @@ -0,0 +1,103 @@ +#include +#include +#include + +BinarySemaphore::BinarySemaphore() { + handle = xSemaphoreCreateBinary(); + if(handle == nullptr) { + sif::error << "Semaphore: Binary semaph creation failure" << std::endl; + } + // Initiated semaphore must be given before it can be taken. + xSemaphoreGive(handle); +} + +BinarySemaphore::~BinarySemaphore() { + vSemaphoreDelete(handle); +} + +BinarySemaphore::BinarySemaphore(BinarySemaphore&& s) { + handle = xSemaphoreCreateBinary(); + if(handle == nullptr) { + sif::error << "Binary semaphore creation failure" << std::endl; + } + xSemaphoreGive(handle); +} + +BinarySemaphore& BinarySemaphore::operator =( + BinarySemaphore&& s) { + if(&s != this) { + handle = xSemaphoreCreateBinary(); + if(handle == nullptr) { + sif::error << "Binary semaphore creation failure" << std::endl; + } + xSemaphoreGive(handle); + } + return *this; +} + +ReturnValue_t BinarySemaphore::acquire(uint32_t timeoutMs) { + TickType_t timeout = SemaphoreIF::NO_TIMEOUT; + if(timeoutMs == SemaphoreIF::MAX_TIMEOUT) { + timeout = SemaphoreIF::MAX_TIMEOUT; + } + else if(timeoutMs > SemaphoreIF::NO_TIMEOUT){ + timeout = pdMS_TO_TICKS(timeoutMs); + } + return acquireWithTickTimeout(timeout); +} + +ReturnValue_t BinarySemaphore::acquireWithTickTimeout(TickType_t timeoutTicks) { + if(handle == nullptr) { + return SemaphoreIF::SEMAPHORE_INVALID; + } + + BaseType_t returncode = xSemaphoreTake(handle, timeoutTicks); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + return SemaphoreIF::SEMAPHORE_TIMEOUT; + } +} + +ReturnValue_t BinarySemaphore::release() { + return release(handle); +} + +ReturnValue_t BinarySemaphore::release(SemaphoreHandle_t semaphore) { + if (semaphore == nullptr) { + return SemaphoreIF::SEMAPHORE_INVALID; + } + BaseType_t returncode = xSemaphoreGive(semaphore); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } +} + +uint8_t BinarySemaphore::getSemaphoreCounter() const { + return uxSemaphoreGetCount(handle); +} + +SemaphoreHandle_t BinarySemaphore::getSemaphore() { + return handle; +} + + +// Be careful with the stack size here. This is called from an ISR! +ReturnValue_t BinarySemaphore::releaseFromISR( + SemaphoreHandle_t semaphore, BaseType_t * higherPriorityTaskWoken) { + if (semaphore == nullptr) { + return SemaphoreIF::SEMAPHORE_INVALID; + } + BaseType_t returncode = xSemaphoreGiveFromISR(semaphore, + higherPriorityTaskWoken); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } +} diff --git a/osal/FreeRTOS/BinarySemaphore.h b/osal/FreeRTOS/BinarySemaphore.h new file mode 100644 index 00000000..0938dee6 --- /dev/null +++ b/osal/FreeRTOS/BinarySemaphore.h @@ -0,0 +1,107 @@ +#ifndef FRAMEWORK_OSAL_FREERTOS_BINARYSEMPAHORE_H_ +#define FRAMEWORK_OSAL_FREERTOS_BINARYSEMPAHORE_H_ + +#include +#include + +#include +#include + +/** + * @brief OS Tool to achieve synchronization of between tasks or between + * task and ISR. The default semaphore implementation creates a + * binary semaphore, which can only be taken once. + * @details + * Documentation: https://www.freertos.org/Embedded-RTOS-Binary-Semaphores.html + * + * Please note that if the semaphore implementation is only related to + * the synchronization of one task, the new task notifications can be used, + * also see the BinSemaphUsingTask and CountingSemaphUsingTask classes. + * These use the task notification value instead of a queue and are + * faster and more efficient. + * + * @author R. Mueller + * @ingroup osal + */ +class BinarySemaphore: public SemaphoreIF, + public HasReturnvaluesIF { +public: + static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; + + //! @brief Default ctor + BinarySemaphore(); + //! @brief Copy ctor, deleted explicitely. + BinarySemaphore(const BinarySemaphore&) = delete; + //! @brief Copy assignment, deleted explicitely. + BinarySemaphore& operator=(const BinarySemaphore&) = delete; + //! @brief Move ctor + BinarySemaphore (BinarySemaphore &&); + //! @brief Move assignment + BinarySemaphore & operator=(BinarySemaphore &&); + //! @brief Destructor + virtual ~BinarySemaphore(); + + uint8_t getSemaphoreCounter() const override; + + /** + * Take the binary semaphore. + * If the semaphore has already been taken, the task will be blocked + * for a maximum of #timeoutMs or until the semaphore is given back, + * for example by an ISR or another task. + * @param timeoutMs + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout + */ + ReturnValue_t acquire(uint32_t timeoutMs = + SemaphoreIF::NO_TIMEOUT) override; + + /** + * Same as lockBinarySemaphore() with timeout in FreeRTOS ticks. + * @param timeoutTicks + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout + */ + ReturnValue_t acquireWithTickTimeout(TickType_t timeoutTicks = + BinarySemaphore::NO_TIMEOUT); + + /** + * Release the binary semaphore. + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if the semaphores is + * already available. + */ + ReturnValue_t release() override; + + /** + * Get Handle to the semaphore. + * @return + */ + SemaphoreHandle_t getSemaphore(); + + /** + * Wrapper function to give back semaphore from handle + * @param semaphore + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if the semaphores is + * already available. + */ + static ReturnValue_t release(SemaphoreHandle_t semaphore); + + /** + * Wrapper function to give back semaphore from handle when called from an ISR + * @param semaphore + * @param higherPriorityTaskWoken This will be set to pdPASS if a task with + * a higher priority was unblocked. A context switch from an ISR should + * then be requested (see TaskManagement functions) + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if the semaphores is + * already available. + */ + static ReturnValue_t releaseFromISR(SemaphoreHandle_t semaphore, + BaseType_t * higherPriorityTaskWoken); + +protected: + SemaphoreHandle_t handle; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_BINARYSEMPAHORE_H_ */ diff --git a/osal/FreeRTOS/CountingSemaphUsingTask.cpp b/osal/FreeRTOS/CountingSemaphUsingTask.cpp new file mode 100644 index 00000000..d0f63f3f --- /dev/null +++ b/osal/FreeRTOS/CountingSemaphUsingTask.cpp @@ -0,0 +1,110 @@ +#include +#include +#include + +CountingSemaphoreUsingTask::CountingSemaphoreUsingTask(const uint8_t maxCount, + uint8_t initCount): maxCount(maxCount) { + if(initCount > maxCount) { + sif::error << "CountingSemaphoreUsingTask: Max count bigger than " + "intial cout. Setting initial count to max count." << std::endl; + initCount = maxCount; + } + + handle = TaskManagement::getCurrentTaskHandle(); + if(handle == nullptr) { + sif::error << "CountingSemaphoreUsingTask: Could not retrieve task " + "handle. Please ensure the constructor was called inside a " + "task." << std::endl; + } + + uint32_t oldNotificationValue; + xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, + &oldNotificationValue); + if(oldNotificationValue != 0) { + sif::warning << "CountinSemaphoreUsingTask: Semaphore initiated but " + "current notification value is not 0. Please ensure the " + "notification value is not used for other purposes!" << std::endl; + } + for(int i = 0; i < initCount; i++) { + xTaskNotifyGive(handle); + } +} + +CountingSemaphoreUsingTask::~CountingSemaphoreUsingTask() { + // Clear notification value on destruction. + // If this is not desired, don't call the destructor + // (or implement a boolean which disables the reset) + xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, nullptr); +} + +ReturnValue_t CountingSemaphoreUsingTask::acquire(uint32_t timeoutMs) { + TickType_t timeout = SemaphoreIF::NO_TIMEOUT; + if(timeoutMs == SemaphoreIF::MAX_TIMEOUT) { + timeout = SemaphoreIF::MAX_TIMEOUT; + } + else if(timeoutMs > SemaphoreIF::NO_TIMEOUT){ + timeout = pdMS_TO_TICKS(timeoutMs); + } + return acquireWithTickTimeout(timeout); + +} + +ReturnValue_t CountingSemaphoreUsingTask::acquireWithTickTimeout( + TickType_t timeoutTicks) { + // Decrement notfication value without resetting it. + BaseType_t oldCount = ulTaskNotifyTake(pdFALSE, timeoutTicks); + if (getSemaphoreCounter() == oldCount - 1) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + return SemaphoreIF::SEMAPHORE_TIMEOUT; + } +} + +ReturnValue_t CountingSemaphoreUsingTask::release() { + if(getSemaphoreCounter() == maxCount) { + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } + return release(handle); +} + +ReturnValue_t CountingSemaphoreUsingTask::release( + TaskHandle_t taskToNotify) { + BaseType_t returncode = xTaskNotifyGive(taskToNotify); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + // This should never happen. + return HasReturnvaluesIF::RETURN_FAILED; + } +} + + +uint8_t CountingSemaphoreUsingTask::getSemaphoreCounter() const { + uint32_t notificationValue = 0; + xTaskNotifyAndQuery(handle, 0, eNoAction, ¬ificationValue); + return notificationValue; +} + +TaskHandle_t CountingSemaphoreUsingTask::getTaskHandle() { + return handle; +} + +ReturnValue_t CountingSemaphoreUsingTask::releaseFromISR( + TaskHandle_t taskToNotify, BaseType_t* higherPriorityTaskWoken) { + vTaskNotifyGiveFromISR(taskToNotify, higherPriorityTaskWoken); + return HasReturnvaluesIF::RETURN_OK; +} + +uint8_t CountingSemaphoreUsingTask::getSemaphoreCounterFromISR( + TaskHandle_t task, BaseType_t* higherPriorityTaskWoken) { + uint32_t notificationValue; + xTaskNotifyAndQueryFromISR(task, 0, eNoAction, ¬ificationValue, + higherPriorityTaskWoken); + return notificationValue; +} + +uint8_t CountingSemaphoreUsingTask::getMaxCount() const { + return maxCount; +} diff --git a/osal/FreeRTOS/CountingSemaphUsingTask.h b/osal/FreeRTOS/CountingSemaphUsingTask.h new file mode 100644 index 00000000..797e864b --- /dev/null +++ b/osal/FreeRTOS/CountingSemaphUsingTask.h @@ -0,0 +1,100 @@ +#ifndef FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ +#define FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ + +#include +#include + +extern "C" { +#include +#include +} + +/** + * @brief Couting Semaphore implementation which uses the notification value + * of the task. The notification value should therefore not be used + * for other purposes. + * @details + * Additional information: https://www.freertos.org/RTOS-task-notifications.html + * and general semaphore documentation. + */ +class CountingSemaphoreUsingTask: public SemaphoreIF { +public: + CountingSemaphoreUsingTask(const uint8_t maxCount, uint8_t initCount); + virtual ~CountingSemaphoreUsingTask(); + + /** + * Acquire the counting semaphore. + * If no semaphores are available, the task will be blocked + * for a maximum of #timeoutMs or until one is given back, + * for example by an ISR or another task. + * @param timeoutMs + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout + */ + ReturnValue_t acquire(uint32_t timeoutMs = SemaphoreIF::NO_TIMEOUT) override; + + /** + * Release a semaphore, increasing the number of available counting + * semaphores up to the #maxCount value. + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are + * already available. + */ + ReturnValue_t release() override; + + uint8_t getSemaphoreCounter() const override; + /** + * Get the semaphore counter from an ISR. + * @param task + * @param higherPriorityTaskWoken This will be set to pdPASS if a task with + * a higher priority was unblocked. A context switch should be requested + * from an ISR if this is the case (see TaskManagement functions) + * @return + */ + static uint8_t getSemaphoreCounterFromISR(TaskHandle_t task, + BaseType_t* higherPriorityTaskWoken); + + /** + * Acquire with a timeout value in ticks + * @param timeoutTicks + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout + */ + ReturnValue_t acquireWithTickTimeout( + TickType_t timeoutTicks = SemaphoreIF::NO_TIMEOUT); + + /** + * Get handle to the task related to the semaphore. + * @return + */ + TaskHandle_t getTaskHandle(); + + /** + * Release semaphore of task by supplying task handle + * @param taskToNotify + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are + * already available. + */ + static ReturnValue_t release(TaskHandle_t taskToNotify); + /** + * Release seamphore of a task from an ISR. + * @param taskToNotify + * @param higherPriorityTaskWoken This will be set to pdPASS if a task with + * a higher priority was unblocked. A context switch should be requested + * from an ISR if this is the case (see TaskManagement functions) + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are + * already available. + */ + static ReturnValue_t releaseFromISR(TaskHandle_t taskToNotify, + BaseType_t* higherPriorityTaskWoken); + + uint8_t getMaxCount() const; + +private: + TaskHandle_t handle; + const uint8_t maxCount; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ */ diff --git a/osal/FreeRTOS/CountingSemaphore.cpp b/osal/FreeRTOS/CountingSemaphore.cpp new file mode 100644 index 00000000..957f6a31 --- /dev/null +++ b/osal/FreeRTOS/CountingSemaphore.cpp @@ -0,0 +1,43 @@ +#include +#include +#include + +#include + +// Make sure #define configUSE_COUNTING_SEMAPHORES 1 is set in +// free FreeRTOSConfig.h file. +CountingSemaphore::CountingSemaphore(const uint8_t maxCount, uint8_t initCount): + maxCount(maxCount), initCount(initCount) { + if(initCount > maxCount) { + sif::error << "CountingSemaphoreUsingTask: Max count bigger than " + "intial cout. Setting initial count to max count." << std::endl; + initCount = maxCount; + } + + handle = xSemaphoreCreateCounting(maxCount, initCount); + if(handle == nullptr) { + sif::error << "CountingSemaphore: Creation failure" << std::endl; + } +} + +CountingSemaphore::CountingSemaphore(CountingSemaphore&& other): + maxCount(other.maxCount), initCount(other.initCount) { + handle = xSemaphoreCreateCounting(other.maxCount, other.initCount); + if(handle == nullptr) { + sif::error << "CountingSemaphore: Creation failure" << std::endl; + } +} + +CountingSemaphore& CountingSemaphore::operator =( + CountingSemaphore&& other) { + handle = xSemaphoreCreateCounting(other.maxCount, other.initCount); + if(handle == nullptr) { + sif::error << "CountingSemaphore: Creation failure" << std::endl; + } + return * this; +} + + +uint8_t CountingSemaphore::getMaxCount() const { + return maxCount; +} diff --git a/osal/FreeRTOS/CountingSemaphore.h b/osal/FreeRTOS/CountingSemaphore.h new file mode 100644 index 00000000..dca3ab0e --- /dev/null +++ b/osal/FreeRTOS/CountingSemaphore.h @@ -0,0 +1,34 @@ +#ifndef FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ +#define FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ +#include + +/** + * @brief Counting semaphores, which can be acquire more than once. + * @details + * See: https://www.freertos.org/CreateCounting.html + * API of counting semaphores is almost identical to binary semaphores, + * so we just inherit from binary semaphore and provide the respective + * constructors. + */ +class CountingSemaphore: public BinarySemaphore { +public: + CountingSemaphore(const uint8_t maxCount, uint8_t initCount); + //! @brief Copy ctor, disabled + CountingSemaphore(const CountingSemaphore&) = delete; + //! @brief Copy assignment, disabled + CountingSemaphore& operator=(const CountingSemaphore&) = delete; + //! @brief Move ctor + CountingSemaphore (CountingSemaphore &&); + //! @brief Move assignment + CountingSemaphore & operator=(CountingSemaphore &&); + + /* Same API as binary semaphore otherwise. acquire() can be called + * until there are not semaphores left and release() can be called + * until maxCount is reached. */ + uint8_t getMaxCount() const; +private: + const uint8_t maxCount; + uint8_t initCount = 0; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ */ From f829d063cee5383abfdc9dc951a4f82cbea7d36f Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Fri, 29 May 2020 13:31:55 +0200 Subject: [PATCH 03/13] added task management functions required for freeRTOS --- osal/FreeRTOS/TaskManagement.cpp | 23 ++++++++++++ osal/FreeRTOS/TaskManagement.h | 63 ++++++++++++++++++++++++++++++++ 2 files changed, 86 insertions(+) create mode 100644 osal/FreeRTOS/TaskManagement.cpp create mode 100644 osal/FreeRTOS/TaskManagement.h diff --git a/osal/FreeRTOS/TaskManagement.cpp b/osal/FreeRTOS/TaskManagement.cpp new file mode 100644 index 00000000..7871ab2e --- /dev/null +++ b/osal/FreeRTOS/TaskManagement.cpp @@ -0,0 +1,23 @@ +#include + +void TaskManagement::requestContextSwitchFromTask() { + vTaskDelay(0); +} + +void TaskManagement::requestContextSwitch( + CallContext callContext = CallContext::TASK) { + if(callContext == CallContext::ISR) { + // This function depends on the partmacro.h definition for the specific device + requestContextSwitchFromISR(); + } else { + requestContextSwitchFromTask(); + } +} + +TaskHandle_t TaskManagement::getCurrentTaskHandle() { + return xTaskGetCurrentTaskHandle(); +} + +configSTACK_DEPTH_TYPE TaskManagement::getTaskStackHighWatermark() { + return uxTaskGetStackHighWaterMark(TaskManagement::getCurrentTaskHandle()); +} diff --git a/osal/FreeRTOS/TaskManagement.h b/osal/FreeRTOS/TaskManagement.h new file mode 100644 index 00000000..39c24377 --- /dev/null +++ b/osal/FreeRTOS/TaskManagement.h @@ -0,0 +1,63 @@ +#ifndef FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_ +#define FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_ + +#include + +extern "C" { +#include +#include +} +#include + +/** + * Architecture dependant portmacro.h function call. + * Should be implemented in bsp. + */ +extern "C" void requestContextSwitchFromISR(); + +/*! + * Used by functions to tell if they are being called from + * within an ISR or from a regular task. This is required because FreeRTOS + * has different functions for handling semaphores and messages from within + * an ISR and task. + */ +enum class CallContext { + TASK = 0x00,//!< task_context + ISR = 0xFF //!< isr_context +}; + + +class TaskManagement { +public: + /** + * @brief In this function, a function dependant on the portmacro.h header + * function calls to request a context switch can be specified. + * This can be used if sending to the queue from an ISR caused a task + * to unblock and a context switch is required. + */ + static void requestContextSwitch(CallContext callContext); + + /** + * If task preemption in FreeRTOS is disabled, a context switch + * can be requested manually by calling this function. + */ + static void requestContextSwitchFromTask(void); + + /** + * @return The current task handle + */ + static TaskHandle_t getCurrentTaskHandle(); + + /** + * Get returns the minimum amount of remaining stack space in words + * that was a available to the task since the task started executing. + * Please note that the actual value in bytes depends + * on the stack depth type. + * E.g. on a 32 bit machine, a value of 200 means 800 bytes. + * @return Smallest value of stack remaining since the task was started in + * words. + */ + static configSTACK_DEPTH_TYPE getTaskStackHighWatermark(); +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_ */ From adb80a68fc0fb8fd7a206ad842565083df18a59d Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Fri, 29 May 2020 13:32:38 +0200 Subject: [PATCH 04/13] addd freertos semaphore factory --- osal/FreeRTOS/SemaphoreFactory.cpp | 61 ++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 osal/FreeRTOS/SemaphoreFactory.cpp diff --git a/osal/FreeRTOS/SemaphoreFactory.cpp b/osal/FreeRTOS/SemaphoreFactory.cpp new file mode 100644 index 00000000..05a898cd --- /dev/null +++ b/osal/FreeRTOS/SemaphoreFactory.cpp @@ -0,0 +1,61 @@ +#include +#include +#include +#include +#include +#include + +SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; +const uint32_t SemaphoreIF::NO_TIMEOUT = 0; +const uint32_t SemaphoreIF::MAX_TIMEOUT = portMAX_DELAY; + +static const uint32_t USE_REGULAR_SEMAPHORES = 0; +static const uint32_t USE_TASK_NOTIFICATIONS = 1; + +SemaphoreFactory::SemaphoreFactory() { +} + +SemaphoreFactory::~SemaphoreFactory() { + delete factoryInstance; +} + +SemaphoreFactory* SemaphoreFactory::instance() { + if (factoryInstance == nullptr){ + factoryInstance = new SemaphoreFactory(); + } + return SemaphoreFactory::factoryInstance; +} + +SemaphoreIF* SemaphoreFactory::createBinarySemaphore(uint32_t argument) { + if(argument == USE_REGULAR_SEMAPHORES) { + return new BinarySemaphore(); + } + else if(argument == USE_TASK_NOTIFICATIONS) { + return new BinarySemaphoreUsingTask(); + } + else { + sif::warning << "SemaphoreFactory: Invalid argument, return regular" + "binary semaphore" << std::endl; + return new BinarySemaphore(); + } +} + +SemaphoreIF* SemaphoreFactory::createCountingSemaphore(uint8_t maxCount, + uint8_t initCount, uint32_t argument) { + if(argument == USE_REGULAR_SEMAPHORES) { + return new CountingSemaphore(maxCount, initCount); + } + else if(argument == USE_TASK_NOTIFICATIONS) { + return new CountingSemaphoreUsingTask(maxCount, initCount); + } + else { + sif::warning << "SemaphoreFactory: Invalid argument, return regular" + "binary semaphore" << std::endl; + return new CountingSemaphore(maxCount, initCount); + } + +} + +void SemaphoreFactory::deleteSemaphore(SemaphoreIF* semaphore) { + delete semaphore; +} From b4c6a04d4a9969727f2602fee1fb1fff8c4bc832 Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Fri, 29 May 2020 13:33:44 +0200 Subject: [PATCH 05/13] added linux implementations --- osal/linux/BinarySemaphore.cpp | 148 +++++++++++++++++++++++++++++++ osal/linux/BinarySemaphore.h | 81 +++++++++++++++++ osal/linux/CountingSemaphore.cpp | 54 +++++++++++ osal/linux/CountingSemaphore.h | 37 ++++++++ osal/linux/SemaphoreFactory.cpp | 36 ++++++++ 5 files changed, 356 insertions(+) create mode 100644 osal/linux/BinarySemaphore.cpp create mode 100644 osal/linux/BinarySemaphore.h create mode 100644 osal/linux/CountingSemaphore.cpp create mode 100644 osal/linux/CountingSemaphore.h create mode 100644 osal/linux/SemaphoreFactory.cpp diff --git a/osal/linux/BinarySemaphore.cpp b/osal/linux/BinarySemaphore.cpp new file mode 100644 index 00000000..7c76a5c4 --- /dev/null +++ b/osal/linux/BinarySemaphore.cpp @@ -0,0 +1,148 @@ +#include +#include + +extern "C" { +#include +#include +} + +BinarySemaphore::BinarySemaphore() { + // Using unnamed semaphores for now + initSemaphore(); +} + +BinarySemaphore::~BinarySemaphore() { + sem_destroy(&handle); +} + +BinarySemaphore::BinarySemaphore(BinarySemaphore&& s) { + initSemaphore(); +} + +BinarySemaphore& BinarySemaphore::operator =( + BinarySemaphore&& s) { + initSemaphore(); + return * this; +} + +ReturnValue_t BinarySemaphore::acquire(uint32_t timeoutMs) { + int result = 0; + if(timeoutMs == SemaphoreIF::NO_TIMEOUT) { + result = sem_trywait(&handle); + } + else if(timeoutMs == SemaphoreIF::MAX_TIMEOUT) { + result = sem_wait(&handle); + } + else if(timeoutMs > SemaphoreIF::NO_TIMEOUT){ + timespec timeOut; + clock_gettime(CLOCK_REALTIME, &timeOut); + uint64_t nseconds = timeOut.tv_sec * 1000000000 + timeOut.tv_nsec; + nseconds += timeoutMs * 1000000; + timeOut.tv_sec = nseconds / 1000000000; + timeOut.tv_nsec = nseconds - timeOut.tv_sec * 1000000000; + result = sem_timedwait(&handle, &timeOut); + if(result != 0 and errno == EINVAL) { + sif::debug << "BinarySemaphore::acquire: Invalid time value possible" + << std::endl; + } + } + if(result == 0) { + return HasReturnvaluesIF::RETURN_OK; + } + + switch(errno) { + case(EAGAIN): + // Operation could not be performed without blocking (for sem_trywait) + case(ETIMEDOUT): + // Semaphore is 0 + return SemaphoreIF::SEMAPHORE_TIMEOUT; + case(EINVAL): + // Semaphore invalid + return SemaphoreIF::SEMAPHORE_INVALID; + case(EINTR): + // Call was interrupted by signal handler + sif::debug << "BinarySemaphore::acquire: Signal handler interrupted." + "Code " << strerror(errno) << std::endl; + /* No break */ + default: + return HasReturnvaluesIF::RETURN_FAILED; + } +} + +ReturnValue_t BinarySemaphore::release() { + return BinarySemaphore::release(&this->handle); +} + +ReturnValue_t BinarySemaphore::release(sem_t *handle) { + ReturnValue_t countResult = checkCount(handle, 1); + if(countResult != HasReturnvaluesIF::RETURN_OK) { + return countResult; + } + + int result = sem_post(handle); + if(result == 0) { + return HasReturnvaluesIF::RETURN_OK; + } + + switch(errno) { + case(EINVAL): + // Semaphore invalid + return SemaphoreIF::SEMAPHORE_INVALID; + case(EOVERFLOW): + // SEM_MAX_VALUE overflow. This should never happen + default: + return HasReturnvaluesIF::RETURN_FAILED; + } +} + +uint8_t BinarySemaphore::getSemaphoreCounter() const { + // And another ugly cast :-D + return getSemaphoreCounter(const_cast(&this->handle)); +} + +uint8_t BinarySemaphore::getSemaphoreCounter(sem_t *handle) { + int value = 0; + int result = sem_getvalue(handle, &value); + if (result == 0) { + return value; + } + else if(result != 0 and errno == EINVAL) { + // Could be called from interrupt, use lightweight printf + printf("BinarySemaphore::getSemaphoreCounter: Invalid semaphore\n"); + return 0; + } + else { + // This should never happen. + return 0; + } +} + +void BinarySemaphore::initSemaphore(uint8_t initCount) { + auto result = sem_init(&handle, true, initCount); + if(result == -1) { + switch(errno) { + case(EINVAL): + // Value exceeds SEM_VALUE_MAX + case(ENOSYS): + // System does not support process-shared semaphores + sif::error << "BinarySemaphore: Init failed with" << strerror(errno) + << std::endl; + } + } +} + +ReturnValue_t BinarySemaphore::checkCount(sem_t* handle, uint8_t maxCount) { + int value = getSemaphoreCounter(handle); + if(value >= maxCount) { + if(maxCount == 1 and value > 1) { + // Binary Semaphore special case. + // This is a config error use lightweight printf is this is called + // from an interrupt + printf("BinarySemaphore::release: Value of binary semaphore greater" + " than 1!\n"); + return HasReturnvaluesIF::RETURN_FAILED; + } + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } + return HasReturnvaluesIF::RETURN_OK; +} diff --git a/osal/linux/BinarySemaphore.h b/osal/linux/BinarySemaphore.h new file mode 100644 index 00000000..7836cd41 --- /dev/null +++ b/osal/linux/BinarySemaphore.h @@ -0,0 +1,81 @@ +#ifndef FRAMEWORK_OSAL_LINUX_BINARYSEMPAHORE_H_ +#define FRAMEWORK_OSAL_LINUX_BINARYSEMPAHORE_H_ + +#include +#include + +extern "C" { +#include +} + +/** + * @brief OS Tool to achieve synchronization of between tasks or between + * task and ISR. The default semaphore implementation creates a + * binary semaphore, which can only be taken once. + * @details + * See: http://www.man7.org/linux/man-pages/man7/sem_overview.7.html + * @author R. Mueller + * @ingroup osal + */ +class BinarySemaphore: public SemaphoreIF, + public HasReturnvaluesIF { +public: + static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; + + //! @brief Default ctor + BinarySemaphore(); + //! @brief Copy ctor, deleted explicitely. + BinarySemaphore(const BinarySemaphore&) = delete; + //! @brief Copy assignment, deleted explicitely. + BinarySemaphore& operator=(const BinarySemaphore&) = delete; + //! @brief Move ctor + BinarySemaphore (BinarySemaphore &&); + //! @brief Move assignment + BinarySemaphore & operator=(BinarySemaphore &&); + //! @brief Destructor + virtual ~BinarySemaphore(); + + void initSemaphore(uint8_t initCount = 1); + + uint8_t getSemaphoreCounter() const override; + static uint8_t getSemaphoreCounter(sem_t* handle); + + /** + * Take the binary semaphore. + * If the semaphore has already been taken, the task will be blocked + * for a maximum of #timeoutMs or until the semaphore is given back, + * for example by an ISR or another task. + * @param timeoutMs + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout + */ + ReturnValue_t acquire(uint32_t timeoutMs = + SemaphoreIF::NO_TIMEOUT) override; + + /** + * Release the binary semaphore. + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if the semaphores is + * already available. + */ + virtual ReturnValue_t release() override; + /** + * This static function can be used to release a semaphore by providing + * its handle. + * @param handle + * @return + */ + static ReturnValue_t release(sem_t* handle); + + /** Checks the validity of the semaphore count against a specified + * known maxCount + * @param handle + * @param maxCount + * @return + */ + static ReturnValue_t checkCount(sem_t* handle, uint8_t maxCount); +protected: + sem_t handle; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_BINARYSEMPAHORE_H_ */ diff --git a/osal/linux/CountingSemaphore.cpp b/osal/linux/CountingSemaphore.cpp new file mode 100644 index 00000000..dfc4d801 --- /dev/null +++ b/osal/linux/CountingSemaphore.cpp @@ -0,0 +1,54 @@ +#include +#include + +CountingSemaphore::CountingSemaphore(const uint8_t maxCount, uint8_t initCount): + maxCount(maxCount), initCount(initCount) { + if(initCount > maxCount) { + sif::error << "CountingSemaphoreUsingTask: Max count bigger than " + "intial cout. Setting initial count to max count." << std::endl; + initCount = maxCount; + } + + initSemaphore(initCount); +} + +CountingSemaphore::CountingSemaphore(CountingSemaphore&& other): + maxCount(other.maxCount), initCount(other.initCount) { + initSemaphore(initCount); +} + +CountingSemaphore& CountingSemaphore::operator =( + CountingSemaphore&& other) { + initSemaphore(other.initCount); + return * this; +} + +ReturnValue_t CountingSemaphore::release() { + ReturnValue_t result = checkCount(&handle, maxCount); + if(result != HasReturnvaluesIF::RETURN_OK) { + return result; + } + return CountingSemaphore::release(&this->handle); +} + +ReturnValue_t CountingSemaphore::release(sem_t* handle) { + int result = sem_post(handle); + if(result == 0) { + return HasReturnvaluesIF::RETURN_OK; + } + + switch(errno) { + case(EINVAL): + // Semaphore invalid + return SemaphoreIF::SEMAPHORE_INVALID; + case(EOVERFLOW): + // SEM_MAX_VALUE overflow. This should never happen + default: + return HasReturnvaluesIF::RETURN_FAILED; + } +} + +uint8_t CountingSemaphore::getMaxCount() const { + return maxCount; +} + diff --git a/osal/linux/CountingSemaphore.h b/osal/linux/CountingSemaphore.h new file mode 100644 index 00000000..ba606595 --- /dev/null +++ b/osal/linux/CountingSemaphore.h @@ -0,0 +1,37 @@ +#ifndef FRAMEWORK_OSAL_LINUX_COUNTINGSEMAPHORE_H_ +#define FRAMEWORK_OSAL_LINUX_COUNTINGSEMAPHORE_H_ +#include + +/** + * @brief Counting semaphores, which can be acquired more than once. + * @details + * See: https://www.freertos.org/CreateCounting.html + * API of counting semaphores is almost identical to binary semaphores, + * so we just inherit from binary semaphore and provide the respective + * constructors. + */ +class CountingSemaphore: public BinarySemaphore { +public: + CountingSemaphore(const uint8_t maxCount, uint8_t initCount); + //! @brief Copy ctor, disabled + CountingSemaphore(const CountingSemaphore&) = delete; + //! @brief Copy assignment, disabled + CountingSemaphore& operator=(const CountingSemaphore&) = delete; + //! @brief Move ctor + CountingSemaphore (CountingSemaphore &&); + //! @brief Move assignment + CountingSemaphore & operator=(CountingSemaphore &&); + + ReturnValue_t release() override; + static ReturnValue_t release(sem_t* sem); + /* Same API as binary semaphore otherwise. acquire() can be called + * until there are not semaphores left and release() can be called + * until maxCount is reached. */ + + uint8_t getMaxCount() const; +private: + const uint8_t maxCount; + uint8_t initCount = 0; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ */ diff --git a/osal/linux/SemaphoreFactory.cpp b/osal/linux/SemaphoreFactory.cpp new file mode 100644 index 00000000..5aec84ea --- /dev/null +++ b/osal/linux/SemaphoreFactory.cpp @@ -0,0 +1,36 @@ +#include +#include +#include +#include + +const uint32_t SemaphoreIF::NO_TIMEOUT = 0; +const uint32_t SemaphoreIF::MAX_TIMEOUT = 0xFFFFFFFF; + +SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; + +SemaphoreFactory::SemaphoreFactory() { +} + +SemaphoreFactory::~SemaphoreFactory() { + delete factoryInstance; +} + +SemaphoreFactory* SemaphoreFactory::instance() { + if (factoryInstance == nullptr){ + factoryInstance = new SemaphoreFactory(); + } + return SemaphoreFactory::factoryInstance; +} + +SemaphoreIF* SemaphoreFactory::createBinarySemaphore(uint32_t arguments) { + return new BinarySemaphore(); +} + +SemaphoreIF* SemaphoreFactory::createCountingSemaphore(const uint8_t maxCount, + uint8_t initCount, uint32_t arguments) { + return new CountingSemaphore(maxCount, initCount); +} + +void SemaphoreFactory::deleteSemaphore(SemaphoreIF* semaphore) { + delete semaphore; +} From 6c9f157d2c657874990c579bea920bc2c0a6c3e5 Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Fri, 29 May 2020 13:34:17 +0200 Subject: [PATCH 06/13] added fw class ids --- returnvalues/FwClassIds.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/returnvalues/FwClassIds.h b/returnvalues/FwClassIds.h index d21861c0..120d8b8c 100644 --- a/returnvalues/FwClassIds.h +++ b/returnvalues/FwClassIds.h @@ -24,6 +24,7 @@ enum { MEMORY_HELPER, //MH SERIALIZE_IF, //SE FIXED_MAP, //FM + FIXED_MULTIMAP, //FMM HAS_HEALTH_IF, //HHI FIFO_CLASS, //FF MESSAGE_PROXY, //MQP @@ -59,6 +60,7 @@ enum { SGP4PROPAGATOR_CLASS, //SGP4 53 MUTEX_IF, //MUX 54 MESSAGE_QUEUE_IF,//MQI 55 + SEMAPHORE_IF, //SPH 56 FW_CLASS_ID_COUNT //is actually count + 1 ! }; From 73183b39efaa3de9e7a295100dace8fb82aa069f Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Fri, 29 May 2020 13:37:13 +0200 Subject: [PATCH 07/13] added new casts otherwise i cant compile with new freertos version --- osal/FreeRTOS/MessageQueue.cpp | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/osal/FreeRTOS/MessageQueue.cpp b/osal/FreeRTOS/MessageQueue.cpp index e5da0442..18e7aa3d 100644 --- a/osal/FreeRTOS/MessageQueue.cpp +++ b/osal/FreeRTOS/MessageQueue.cpp @@ -97,7 +97,8 @@ ReturnValue_t MessageQueue::sendMessageFromMessageQueue(MessageQueueId_t sendTo, bool ignoreFault) { message->setSender(sentFrom); - BaseType_t result = xQueueSendToBack(reinterpret_cast(sendTo),reinterpret_cast(message->getBuffer()), 0); + BaseType_t result = xQueueSendToBack(reinterpret_cast(sendTo), + reinterpret_cast(message->getBuffer()), 0); if (result != pdPASS) { if (!ignoreFault) { InternalErrorReporterIF* internalErrorReporter = objectManager->get( From d4f69633f0e45c7c379d7cc9738af2859d6a8ad3 Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Tue, 2 Jun 2020 22:36:42 +0200 Subject: [PATCH 08/13] renamed timeout values --- osal/FreeRTOS/BinSemaphUsingTask.cpp | 8 ++++---- osal/FreeRTOS/BinSemaphUsingTask.h | 4 ++-- osal/FreeRTOS/BinarySemaphore.cpp | 8 ++++---- osal/FreeRTOS/BinarySemaphore.h | 4 ++-- osal/FreeRTOS/CountingSemaphUsingTask.cpp | 8 ++++---- osal/FreeRTOS/CountingSemaphUsingTask.h | 4 ++-- osal/FreeRTOS/SemaphoreFactory.cpp | 4 ++-- osal/linux/BinarySemaphore.cpp | 6 +++--- osal/linux/BinarySemaphore.h | 2 +- osal/linux/SemaphoreFactory.cpp | 4 ++-- tasks/SemaphoreIF.h | 19 +++++++++++++++---- 11 files changed, 41 insertions(+), 30 deletions(-) diff --git a/osal/FreeRTOS/BinSemaphUsingTask.cpp b/osal/FreeRTOS/BinSemaphUsingTask.cpp index 8f5fd4d8..d3351888 100644 --- a/osal/FreeRTOS/BinSemaphUsingTask.cpp +++ b/osal/FreeRTOS/BinSemaphUsingTask.cpp @@ -17,11 +17,11 @@ BinarySemaphoreUsingTask::~BinarySemaphoreUsingTask() { } ReturnValue_t BinarySemaphoreUsingTask::acquire(uint32_t timeoutMs) { - TickType_t timeout = SemaphoreIF::NO_TIMEOUT; - if(timeoutMs == SemaphoreIF::MAX_TIMEOUT) { - timeout = SemaphoreIF::MAX_TIMEOUT; + TickType_t timeout = SemaphoreIF::POLLING; + if(timeoutMs == SemaphoreIF::BLOCKING) { + timeout = SemaphoreIF::BLOCKING; } - else if(timeoutMs > SemaphoreIF::NO_TIMEOUT){ + else if(timeoutMs > SemaphoreIF::POLLING){ timeout = pdMS_TO_TICKS(timeoutMs); } return acquireWithTickTimeout(timeout); diff --git a/osal/FreeRTOS/BinSemaphUsingTask.h b/osal/FreeRTOS/BinSemaphUsingTask.h index 48c1cd12..43772e5a 100644 --- a/osal/FreeRTOS/BinSemaphUsingTask.h +++ b/osal/FreeRTOS/BinSemaphUsingTask.h @@ -26,7 +26,7 @@ public: virtual~ BinarySemaphoreUsingTask(); ReturnValue_t acquire(uint32_t timeoutMs = - SemaphoreIF::NO_TIMEOUT) override; + SemaphoreIF::BLOCKING) override; ReturnValue_t release() override; uint8_t getSemaphoreCounter() const override; static uint8_t getSemaphoreCounter(TaskHandle_t taskHandle); @@ -40,7 +40,7 @@ public: * - @c RETURN_FAILED on failure */ ReturnValue_t acquireWithTickTimeout(TickType_t timeoutTicks = - SemaphoreIF::NO_TIMEOUT); + SemaphoreIF::BLOCKING); /** * Get handle to the task related to the semaphore. diff --git a/osal/FreeRTOS/BinarySemaphore.cpp b/osal/FreeRTOS/BinarySemaphore.cpp index b6687bb7..e6d2f92f 100644 --- a/osal/FreeRTOS/BinarySemaphore.cpp +++ b/osal/FreeRTOS/BinarySemaphore.cpp @@ -36,11 +36,11 @@ BinarySemaphore& BinarySemaphore::operator =( } ReturnValue_t BinarySemaphore::acquire(uint32_t timeoutMs) { - TickType_t timeout = SemaphoreIF::NO_TIMEOUT; - if(timeoutMs == SemaphoreIF::MAX_TIMEOUT) { - timeout = SemaphoreIF::MAX_TIMEOUT; + TickType_t timeout = SemaphoreIF::POLLING; + if(timeoutMs == SemaphoreIF::BLOCKING) { + timeout = SemaphoreIF::BLOCKING; } - else if(timeoutMs > SemaphoreIF::NO_TIMEOUT){ + else if(timeoutMs > SemaphoreIF::POLLING){ timeout = pdMS_TO_TICKS(timeoutMs); } return acquireWithTickTimeout(timeout); diff --git a/osal/FreeRTOS/BinarySemaphore.h b/osal/FreeRTOS/BinarySemaphore.h index 0938dee6..2a372cd2 100644 --- a/osal/FreeRTOS/BinarySemaphore.h +++ b/osal/FreeRTOS/BinarySemaphore.h @@ -53,7 +53,7 @@ public: * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout */ ReturnValue_t acquire(uint32_t timeoutMs = - SemaphoreIF::NO_TIMEOUT) override; + SemaphoreIF::BLOCKING) override; /** * Same as lockBinarySemaphore() with timeout in FreeRTOS ticks. @@ -62,7 +62,7 @@ public: * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout */ ReturnValue_t acquireWithTickTimeout(TickType_t timeoutTicks = - BinarySemaphore::NO_TIMEOUT); + SemaphoreIF::BLOCKING); /** * Release the binary semaphore. diff --git a/osal/FreeRTOS/CountingSemaphUsingTask.cpp b/osal/FreeRTOS/CountingSemaphUsingTask.cpp index d0f63f3f..f33c7a0d 100644 --- a/osal/FreeRTOS/CountingSemaphUsingTask.cpp +++ b/osal/FreeRTOS/CountingSemaphUsingTask.cpp @@ -38,11 +38,11 @@ CountingSemaphoreUsingTask::~CountingSemaphoreUsingTask() { } ReturnValue_t CountingSemaphoreUsingTask::acquire(uint32_t timeoutMs) { - TickType_t timeout = SemaphoreIF::NO_TIMEOUT; - if(timeoutMs == SemaphoreIF::MAX_TIMEOUT) { - timeout = SemaphoreIF::MAX_TIMEOUT; + TickType_t timeout = SemaphoreIF::POLLING; + if(timeoutMs == SemaphoreIF::BLOCKING) { + timeout = SemaphoreIF::BLOCKING; } - else if(timeoutMs > SemaphoreIF::NO_TIMEOUT){ + else if(timeoutMs > SemaphoreIF::POLLING){ timeout = pdMS_TO_TICKS(timeoutMs); } return acquireWithTickTimeout(timeout); diff --git a/osal/FreeRTOS/CountingSemaphUsingTask.h b/osal/FreeRTOS/CountingSemaphUsingTask.h index 797e864b..f1d82c1d 100644 --- a/osal/FreeRTOS/CountingSemaphUsingTask.h +++ b/osal/FreeRTOS/CountingSemaphUsingTask.h @@ -31,7 +31,7 @@ public: * @return -@c RETURN_OK on success * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout */ - ReturnValue_t acquire(uint32_t timeoutMs = SemaphoreIF::NO_TIMEOUT) override; + ReturnValue_t acquire(uint32_t timeoutMs = SemaphoreIF::BLOCKING) override; /** * Release a semaphore, increasing the number of available counting @@ -61,7 +61,7 @@ public: * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout */ ReturnValue_t acquireWithTickTimeout( - TickType_t timeoutTicks = SemaphoreIF::NO_TIMEOUT); + TickType_t timeoutTicks = SemaphoreIF::BLOCKING); /** * Get handle to the task related to the semaphore. diff --git a/osal/FreeRTOS/SemaphoreFactory.cpp b/osal/FreeRTOS/SemaphoreFactory.cpp index 05a898cd..78427f6c 100644 --- a/osal/FreeRTOS/SemaphoreFactory.cpp +++ b/osal/FreeRTOS/SemaphoreFactory.cpp @@ -6,8 +6,8 @@ #include SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; -const uint32_t SemaphoreIF::NO_TIMEOUT = 0; -const uint32_t SemaphoreIF::MAX_TIMEOUT = portMAX_DELAY; +const uint32_t SemaphoreIF::POLLING = 0; +const uint32_t SemaphoreIF::BLOCKING = portMAX_DELAY; static const uint32_t USE_REGULAR_SEMAPHORES = 0; static const uint32_t USE_TASK_NOTIFICATIONS = 1; diff --git a/osal/linux/BinarySemaphore.cpp b/osal/linux/BinarySemaphore.cpp index 7c76a5c4..e2ad9b58 100644 --- a/osal/linux/BinarySemaphore.cpp +++ b/osal/linux/BinarySemaphore.cpp @@ -27,13 +27,13 @@ BinarySemaphore& BinarySemaphore::operator =( ReturnValue_t BinarySemaphore::acquire(uint32_t timeoutMs) { int result = 0; - if(timeoutMs == SemaphoreIF::NO_TIMEOUT) { + if(timeoutMs == SemaphoreIF::POLLING) { result = sem_trywait(&handle); } - else if(timeoutMs == SemaphoreIF::MAX_TIMEOUT) { + else if(timeoutMs == SemaphoreIF::BLOCKING) { result = sem_wait(&handle); } - else if(timeoutMs > SemaphoreIF::NO_TIMEOUT){ + else if(timeoutMs > SemaphoreIF::POLLING){ timespec timeOut; clock_gettime(CLOCK_REALTIME, &timeOut); uint64_t nseconds = timeOut.tv_sec * 1000000000 + timeOut.tv_nsec; diff --git a/osal/linux/BinarySemaphore.h b/osal/linux/BinarySemaphore.h index 7836cd41..9d4ed1cd 100644 --- a/osal/linux/BinarySemaphore.h +++ b/osal/linux/BinarySemaphore.h @@ -50,7 +50,7 @@ public: * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout */ ReturnValue_t acquire(uint32_t timeoutMs = - SemaphoreIF::NO_TIMEOUT) override; + SemaphoreIF::BLOCKING) override; /** * Release the binary semaphore. diff --git a/osal/linux/SemaphoreFactory.cpp b/osal/linux/SemaphoreFactory.cpp index 5aec84ea..4fbd60d9 100644 --- a/osal/linux/SemaphoreFactory.cpp +++ b/osal/linux/SemaphoreFactory.cpp @@ -3,8 +3,8 @@ #include #include -const uint32_t SemaphoreIF::NO_TIMEOUT = 0; -const uint32_t SemaphoreIF::MAX_TIMEOUT = 0xFFFFFFFF; +const uint32_t SemaphoreIF::POLLING = 0; +const uint32_t SemaphoreIF::BLOCKING = 0xffffffff; SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; diff --git a/tasks/SemaphoreIF.h b/tasks/SemaphoreIF.h index a7c5a97b..4fc92ebd 100644 --- a/tasks/SemaphoreIF.h +++ b/tasks/SemaphoreIF.h @@ -21,10 +21,21 @@ class SemaphoreIF { public: virtual~ SemaphoreIF() {}; - //! Needs to be defined in implementation. No blocking time - static const uint32_t NO_TIMEOUT; - //! Needs to be defined in implementation. Blocks indefinitely. - static const uint32_t MAX_TIMEOUT; + /** + * @brief Timeout value used for polling lock attempt. + * @details + * If the lock is not successfull, MUTEX_TIMEOUT will be returned + * immediately. Value needs to be defined in implementation. + */ + static const uint32_t POLLING; + /** + * @brief Timeout value used for permanent blocking lock attempt. + * @details + * The task will be blocked (indefinitely) until the mutex is unlocked. + * Value needs to be defined in implementation. + */ + static const uint32_t BLOCKING; + static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; //! Semaphore timeout static constexpr ReturnValue_t SEMAPHORE_TIMEOUT = MAKE_RETURN_CODE(1); From aacda3afc242dad3c20b9d959a2417dbae5822ed Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Thu, 27 Aug 2020 16:26:00 +0200 Subject: [PATCH 09/13] interface adapted --- osal/FreeRTOS/BinSemaphUsingTask.cpp | 186 +++++++++--------- osal/FreeRTOS/BinSemaphUsingTask.h | 151 +++++++-------- osal/FreeRTOS/BinarySemaphore.cpp | 33 ++-- osal/FreeRTOS/BinarySemaphore.h | 12 +- osal/FreeRTOS/CountingSemaphUsingTask.cpp | 224 +++++++++++----------- osal/FreeRTOS/CountingSemaphUsingTask.h | 202 +++++++++---------- osal/FreeRTOS/CountingSemaphore.cpp | 86 ++++----- osal/FreeRTOS/CountingSemaphore.h | 68 +++---- osal/FreeRTOS/SemaphoreFactory.cpp | 120 ++++++------ tasks/SemaphoreIF.h | 140 +++++++------- 10 files changed, 616 insertions(+), 606 deletions(-) diff --git a/osal/FreeRTOS/BinSemaphUsingTask.cpp b/osal/FreeRTOS/BinSemaphUsingTask.cpp index d3351888..8c831bbe 100644 --- a/osal/FreeRTOS/BinSemaphUsingTask.cpp +++ b/osal/FreeRTOS/BinSemaphUsingTask.cpp @@ -1,91 +1,95 @@ -#include -#include -#include - -BinarySemaphoreUsingTask::BinarySemaphoreUsingTask() { - handle = TaskManagement::getCurrentTaskHandle(); - if(handle == nullptr) { - sif::error << "Could not retrieve task handle. Please ensure the" - "constructor was called inside a task." << std::endl; - } - xTaskNotifyGive(handle); -} - -BinarySemaphoreUsingTask::~BinarySemaphoreUsingTask() { - // Clear notification value on destruction. - xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, nullptr); -} - -ReturnValue_t BinarySemaphoreUsingTask::acquire(uint32_t timeoutMs) { - TickType_t timeout = SemaphoreIF::POLLING; - if(timeoutMs == SemaphoreIF::BLOCKING) { - timeout = SemaphoreIF::BLOCKING; - } - else if(timeoutMs > SemaphoreIF::POLLING){ - timeout = pdMS_TO_TICKS(timeoutMs); - } - return acquireWithTickTimeout(timeout); -} - -ReturnValue_t BinarySemaphoreUsingTask::acquireWithTickTimeout( - TickType_t timeoutTicks) { - BaseType_t returncode = ulTaskNotifyTake(pdTRUE, timeoutTicks); - if (returncode == pdPASS) { - return HasReturnvaluesIF::RETURN_OK; - } - else { - return SemaphoreIF::SEMAPHORE_TIMEOUT; - } -} - -ReturnValue_t BinarySemaphoreUsingTask::release() { - return release(this->handle); -} - -ReturnValue_t BinarySemaphoreUsingTask::release( - TaskHandle_t taskHandle) { - if(getSemaphoreCounter(taskHandle) == 1) { - return SemaphoreIF::SEMAPHORE_NOT_OWNED; - } - BaseType_t returncode = xTaskNotifyGive(taskHandle); - if (returncode == pdPASS) { - return HasReturnvaluesIF::RETURN_OK; - } - else { - // This should never happen. - return HasReturnvaluesIF::RETURN_FAILED; - } -} - -TaskHandle_t BinarySemaphoreUsingTask::getTaskHandle() { - return handle; -} - -uint8_t BinarySemaphoreUsingTask::getSemaphoreCounter() const { - return getSemaphoreCounter(this->handle); -} - -uint8_t BinarySemaphoreUsingTask::getSemaphoreCounter( - TaskHandle_t taskHandle) { - uint32_t notificationValue; - xTaskNotifyAndQuery(taskHandle, 0, eNoAction, ¬ificationValue); - return notificationValue; -} - -// Be careful with the stack size here. This is called from an ISR! -ReturnValue_t BinarySemaphoreUsingTask::releaseFromISR( - TaskHandle_t taskHandle, BaseType_t * higherPriorityTaskWoken) { - if(getSemaphoreCounterFromISR(taskHandle, higherPriorityTaskWoken) == 1) { - return SemaphoreIF::SEMAPHORE_NOT_OWNED; - } - vTaskNotifyGiveFromISR(taskHandle, higherPriorityTaskWoken); - return HasReturnvaluesIF::RETURN_OK; -} - -uint8_t BinarySemaphoreUsingTask::getSemaphoreCounterFromISR( - TaskHandle_t taskHandle, BaseType_t* higherPriorityTaskWoken) { - uint32_t notificationValue = 0; - xTaskNotifyAndQueryFromISR(taskHandle, 0, eNoAction, ¬ificationValue, - higherPriorityTaskWoken); - return notificationValue; -} +#include "../../osal/FreeRTOS/BinSemaphUsingTask.h" +#include "../../osal/FreeRTOS/TaskManagement.h" +#include "../../serviceinterface/ServiceInterfaceStream.h" + +BinarySemaphoreUsingTask::BinarySemaphoreUsingTask() { + handle = TaskManagement::getCurrentTaskHandle(); + if(handle == nullptr) { + sif::error << "Could not retrieve task handle. Please ensure the" + "constructor was called inside a task." << std::endl; + } + xTaskNotifyGive(handle); +} + +BinarySemaphoreUsingTask::~BinarySemaphoreUsingTask() { + // Clear notification value on destruction. + xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, nullptr); +} + +ReturnValue_t BinarySemaphoreUsingTask::acquire(TimeoutType timeoutType, + uint32_t timeoutMs) { + TickType_t timeout = 0; + if(timeoutType == TimeoutType::POLLING) { + timeout = 0; + } + else if(timeoutType == TimeoutType::WAITING){ + timeout = pdMS_TO_TICKS(timeoutMs); + } + else { + timeout = portMAX_DELAY; + } + return acquireWithTickTimeout(timeoutType, timeout); +} + +ReturnValue_t BinarySemaphoreUsingTask::acquireWithTickTimeout( + TimeoutType timeoutType, TickType_t timeoutTicks) { + BaseType_t returncode = ulTaskNotifyTake(pdTRUE, timeoutTicks); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + return SemaphoreIF::SEMAPHORE_TIMEOUT; + } +} + +ReturnValue_t BinarySemaphoreUsingTask::release() { + return release(this->handle); +} + +ReturnValue_t BinarySemaphoreUsingTask::release( + TaskHandle_t taskHandle) { + if(getSemaphoreCounter(taskHandle) == 1) { + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } + BaseType_t returncode = xTaskNotifyGive(taskHandle); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + // This should never happen. + return HasReturnvaluesIF::RETURN_FAILED; + } +} + +TaskHandle_t BinarySemaphoreUsingTask::getTaskHandle() { + return handle; +} + +uint8_t BinarySemaphoreUsingTask::getSemaphoreCounter() const { + return getSemaphoreCounter(this->handle); +} + +uint8_t BinarySemaphoreUsingTask::getSemaphoreCounter( + TaskHandle_t taskHandle) { + uint32_t notificationValue; + xTaskNotifyAndQuery(taskHandle, 0, eNoAction, ¬ificationValue); + return notificationValue; +} + +// Be careful with the stack size here. This is called from an ISR! +ReturnValue_t BinarySemaphoreUsingTask::releaseFromISR( + TaskHandle_t taskHandle, BaseType_t * higherPriorityTaskWoken) { + if(getSemaphoreCounterFromISR(taskHandle, higherPriorityTaskWoken) == 1) { + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } + vTaskNotifyGiveFromISR(taskHandle, higherPriorityTaskWoken); + return HasReturnvaluesIF::RETURN_OK; +} + +uint8_t BinarySemaphoreUsingTask::getSemaphoreCounterFromISR( + TaskHandle_t taskHandle, BaseType_t* higherPriorityTaskWoken) { + uint32_t notificationValue = 0; + xTaskNotifyAndQueryFromISR(taskHandle, 0, eNoAction, ¬ificationValue, + higherPriorityTaskWoken); + return notificationValue; +} diff --git a/osal/FreeRTOS/BinSemaphUsingTask.h b/osal/FreeRTOS/BinSemaphUsingTask.h index 43772e5a..2d2cf159 100644 --- a/osal/FreeRTOS/BinSemaphUsingTask.h +++ b/osal/FreeRTOS/BinSemaphUsingTask.h @@ -1,75 +1,76 @@ -#ifndef FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ -#define FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ - -#include -#include - -#include -#include - -/** - * @brief Binary Semaphore implementation using the task notification value. - * The notification value should therefore not be used - * for other purposes. - * @details - * Additional information: https://www.freertos.org/RTOS-task-notifications.html - * and general semaphore documentation. - */ -class BinarySemaphoreUsingTask: public SemaphoreIF, - public HasReturnvaluesIF { -public: - static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; - - //! @brief Default ctor - BinarySemaphoreUsingTask(); - //! @brief Default dtor - virtual~ BinarySemaphoreUsingTask(); - - ReturnValue_t acquire(uint32_t timeoutMs = - SemaphoreIF::BLOCKING) override; - ReturnValue_t release() override; - uint8_t getSemaphoreCounter() const override; - static uint8_t getSemaphoreCounter(TaskHandle_t taskHandle); - static uint8_t getSemaphoreCounterFromISR(TaskHandle_t taskHandle, - BaseType_t* higherPriorityTaskWoken); - - /** - * Same as acquire() with timeout in FreeRTOS ticks. - * @param timeoutTicks - * @return - @c RETURN_OK on success - * - @c RETURN_FAILED on failure - */ - ReturnValue_t acquireWithTickTimeout(TickType_t timeoutTicks = - SemaphoreIF::BLOCKING); - - /** - * Get handle to the task related to the semaphore. - * @return - */ - TaskHandle_t getTaskHandle(); - - /** - * Wrapper function to give back semaphore from handle - * @param semaphore - * @return - @c RETURN_OK on success - * - @c RETURN_FAILED on failure - */ - static ReturnValue_t release(TaskHandle_t taskToNotify); - - /** - * Wrapper function to give back semaphore from handle when called from an ISR - * @param semaphore - * @param higherPriorityTaskWoken This will be set to pdPASS if a task with - * a higher priority was unblocked. A context switch should be requested - * from an ISR if this is the case (see TaskManagement functions) - * @return - @c RETURN_OK on success - * - @c RETURN_FAILED on failure - */ - static ReturnValue_t releaseFromISR(TaskHandle_t taskToNotify, - BaseType_t * higherPriorityTaskWoken); - -protected: - TaskHandle_t handle; -}; - -#endif /* FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ */ +#ifndef FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ +#define FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ + +#include "../../returnvalues/HasReturnvaluesIF.h" +#include "../../tasks/SemaphoreIF.h" + +#include +#include + +/** + * @brief Binary Semaphore implementation using the task notification value. + * The notification value should therefore not be used + * for other purposes. + * @details + * Additional information: https://www.freertos.org/RTOS-task-notifications.html + * and general semaphore documentation. + */ +class BinarySemaphoreUsingTask: public SemaphoreIF, + public HasReturnvaluesIF { +public: + static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; + + //! @brief Default ctor + BinarySemaphoreUsingTask(); + //! @brief Default dtor + virtual~ BinarySemaphoreUsingTask(); + + ReturnValue_t acquire(TimeoutType timeoutType = TimeoutType::BLOCKING, + uint32_t timeoutMs = portMAX_DELAY) override; + ReturnValue_t release() override; + uint8_t getSemaphoreCounter() const override; + static uint8_t getSemaphoreCounter(TaskHandle_t taskHandle); + static uint8_t getSemaphoreCounterFromISR(TaskHandle_t taskHandle, + BaseType_t* higherPriorityTaskWoken); + + /** + * Same as acquire() with timeout in FreeRTOS ticks. + * @param timeoutTicks + * @return - @c RETURN_OK on success + * - @c RETURN_FAILED on failure + */ + ReturnValue_t acquireWithTickTimeout( + TimeoutType timeoutType = TimeoutType::BLOCKING, + TickType_t timeoutTicks = portMAX_DELAY); + + /** + * Get handle to the task related to the semaphore. + * @return + */ + TaskHandle_t getTaskHandle(); + + /** + * Wrapper function to give back semaphore from handle + * @param semaphore + * @return - @c RETURN_OK on success + * - @c RETURN_FAILED on failure + */ + static ReturnValue_t release(TaskHandle_t taskToNotify); + + /** + * Wrapper function to give back semaphore from handle when called from an ISR + * @param semaphore + * @param higherPriorityTaskWoken This will be set to pdPASS if a task with + * a higher priority was unblocked. A context switch should be requested + * from an ISR if this is the case (see TaskManagement functions) + * @return - @c RETURN_OK on success + * - @c RETURN_FAILED on failure + */ + static ReturnValue_t releaseFromISR(TaskHandle_t taskToNotify, + BaseType_t * higherPriorityTaskWoken); + +protected: + TaskHandle_t handle; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_BINSEMAPHUSINGTASK_H_ */ diff --git a/osal/FreeRTOS/BinarySemaphore.cpp b/osal/FreeRTOS/BinarySemaphore.cpp index e6d2f92f..f1c78473 100644 --- a/osal/FreeRTOS/BinarySemaphore.cpp +++ b/osal/FreeRTOS/BinarySemaphore.cpp @@ -1,11 +1,11 @@ -#include -#include -#include +#include "../../osal/FreeRTOS/BinarySemaphore.h" +#include "../../osal/FreeRTOS/TaskManagement.h" +#include "../../serviceinterface/ServiceInterfaceStream.h" BinarySemaphore::BinarySemaphore() { handle = xSemaphoreCreateBinary(); - if(handle == nullptr) { - sif::error << "Semaphore: Binary semaph creation failure" << std::endl; + if(handle == nullptr) { + sif::error << "Semaphore: Binary semaph creation failure" << std::endl; } // Initiated semaphore must be given before it can be taken. xSemaphoreGive(handle); @@ -35,18 +35,23 @@ BinarySemaphore& BinarySemaphore::operator =( return *this; } -ReturnValue_t BinarySemaphore::acquire(uint32_t timeoutMs) { - TickType_t timeout = SemaphoreIF::POLLING; - if(timeoutMs == SemaphoreIF::BLOCKING) { - timeout = SemaphoreIF::BLOCKING; +ReturnValue_t BinarySemaphore::acquire(TimeoutType timeoutType, + uint32_t timeoutMs) { + TickType_t timeout = 0; + if(timeoutType == TimeoutType::POLLING) { + timeout = 0; } - else if(timeoutMs > SemaphoreIF::POLLING){ + else if(timeoutType == TimeoutType::WAITING){ timeout = pdMS_TO_TICKS(timeoutMs); } - return acquireWithTickTimeout(timeout); + else { + timeout = portMAX_DELAY; + } + return acquireWithTickTimeout(timeoutType, timeout); } -ReturnValue_t BinarySemaphore::acquireWithTickTimeout(TickType_t timeoutTicks) { +ReturnValue_t BinarySemaphore::acquireWithTickTimeout(TimeoutType timeoutType, + TickType_t timeoutTicks) { if(handle == nullptr) { return SemaphoreIF::SEMAPHORE_INVALID; } @@ -84,7 +89,7 @@ uint8_t BinarySemaphore::getSemaphoreCounter() const { SemaphoreHandle_t BinarySemaphore::getSemaphore() { return handle; } - + // Be careful with the stack size here. This is called from an ISR! ReturnValue_t BinarySemaphore::releaseFromISR( @@ -100,4 +105,4 @@ ReturnValue_t BinarySemaphore::releaseFromISR( else { return SemaphoreIF::SEMAPHORE_NOT_OWNED; } -} +} diff --git a/osal/FreeRTOS/BinarySemaphore.h b/osal/FreeRTOS/BinarySemaphore.h index 2a372cd2..5a32088a 100644 --- a/osal/FreeRTOS/BinarySemaphore.h +++ b/osal/FreeRTOS/BinarySemaphore.h @@ -1,8 +1,8 @@ #ifndef FRAMEWORK_OSAL_FREERTOS_BINARYSEMPAHORE_H_ #define FRAMEWORK_OSAL_FREERTOS_BINARYSEMPAHORE_H_ -#include -#include +#include "../../returnvalues/HasReturnvaluesIF.h" +#include "../../tasks/SemaphoreIF.h" #include #include @@ -52,8 +52,8 @@ public: * @return -@c RETURN_OK on success * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout */ - ReturnValue_t acquire(uint32_t timeoutMs = - SemaphoreIF::BLOCKING) override; + ReturnValue_t acquire(TimeoutType timeoutType = + TimeoutType::BLOCKING, uint32_t timeoutMs = portMAX_DELAY) override; /** * Same as lockBinarySemaphore() with timeout in FreeRTOS ticks. @@ -61,8 +61,8 @@ public: * @return -@c RETURN_OK on success * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout */ - ReturnValue_t acquireWithTickTimeout(TickType_t timeoutTicks = - SemaphoreIF::BLOCKING); + ReturnValue_t acquireWithTickTimeout(TimeoutType timeoutType = + TimeoutType::BLOCKING, TickType_t timeoutTicks = portMAX_DELAY); /** * Release the binary semaphore. diff --git a/osal/FreeRTOS/CountingSemaphUsingTask.cpp b/osal/FreeRTOS/CountingSemaphUsingTask.cpp index f33c7a0d..e66671ac 100644 --- a/osal/FreeRTOS/CountingSemaphUsingTask.cpp +++ b/osal/FreeRTOS/CountingSemaphUsingTask.cpp @@ -1,110 +1,114 @@ -#include -#include -#include - -CountingSemaphoreUsingTask::CountingSemaphoreUsingTask(const uint8_t maxCount, - uint8_t initCount): maxCount(maxCount) { - if(initCount > maxCount) { - sif::error << "CountingSemaphoreUsingTask: Max count bigger than " - "intial cout. Setting initial count to max count." << std::endl; - initCount = maxCount; - } - - handle = TaskManagement::getCurrentTaskHandle(); - if(handle == nullptr) { - sif::error << "CountingSemaphoreUsingTask: Could not retrieve task " - "handle. Please ensure the constructor was called inside a " - "task." << std::endl; - } - - uint32_t oldNotificationValue; - xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, - &oldNotificationValue); - if(oldNotificationValue != 0) { - sif::warning << "CountinSemaphoreUsingTask: Semaphore initiated but " - "current notification value is not 0. Please ensure the " - "notification value is not used for other purposes!" << std::endl; - } - for(int i = 0; i < initCount; i++) { - xTaskNotifyGive(handle); - } -} - -CountingSemaphoreUsingTask::~CountingSemaphoreUsingTask() { - // Clear notification value on destruction. - // If this is not desired, don't call the destructor - // (or implement a boolean which disables the reset) - xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, nullptr); -} - -ReturnValue_t CountingSemaphoreUsingTask::acquire(uint32_t timeoutMs) { - TickType_t timeout = SemaphoreIF::POLLING; - if(timeoutMs == SemaphoreIF::BLOCKING) { - timeout = SemaphoreIF::BLOCKING; - } - else if(timeoutMs > SemaphoreIF::POLLING){ - timeout = pdMS_TO_TICKS(timeoutMs); - } - return acquireWithTickTimeout(timeout); - -} - -ReturnValue_t CountingSemaphoreUsingTask::acquireWithTickTimeout( - TickType_t timeoutTicks) { - // Decrement notfication value without resetting it. - BaseType_t oldCount = ulTaskNotifyTake(pdFALSE, timeoutTicks); - if (getSemaphoreCounter() == oldCount - 1) { - return HasReturnvaluesIF::RETURN_OK; - } - else { - return SemaphoreIF::SEMAPHORE_TIMEOUT; - } -} - -ReturnValue_t CountingSemaphoreUsingTask::release() { - if(getSemaphoreCounter() == maxCount) { - return SemaphoreIF::SEMAPHORE_NOT_OWNED; - } - return release(handle); -} - -ReturnValue_t CountingSemaphoreUsingTask::release( - TaskHandle_t taskToNotify) { - BaseType_t returncode = xTaskNotifyGive(taskToNotify); - if (returncode == pdPASS) { - return HasReturnvaluesIF::RETURN_OK; - } - else { - // This should never happen. - return HasReturnvaluesIF::RETURN_FAILED; - } -} - - -uint8_t CountingSemaphoreUsingTask::getSemaphoreCounter() const { - uint32_t notificationValue = 0; - xTaskNotifyAndQuery(handle, 0, eNoAction, ¬ificationValue); - return notificationValue; -} - -TaskHandle_t CountingSemaphoreUsingTask::getTaskHandle() { - return handle; -} - -ReturnValue_t CountingSemaphoreUsingTask::releaseFromISR( - TaskHandle_t taskToNotify, BaseType_t* higherPriorityTaskWoken) { - vTaskNotifyGiveFromISR(taskToNotify, higherPriorityTaskWoken); - return HasReturnvaluesIF::RETURN_OK; -} - -uint8_t CountingSemaphoreUsingTask::getSemaphoreCounterFromISR( - TaskHandle_t task, BaseType_t* higherPriorityTaskWoken) { - uint32_t notificationValue; - xTaskNotifyAndQueryFromISR(task, 0, eNoAction, ¬ificationValue, - higherPriorityTaskWoken); - return notificationValue; -} - -uint8_t CountingSemaphoreUsingTask::getMaxCount() const { - return maxCount; -} +#include "../../osal/FreeRTOS/CountingSemaphUsingTask.h" +#include "../../osal/FreeRTOS/TaskManagement.h" +#include "../../serviceinterface/ServiceInterfaceStream.h" + +CountingSemaphoreUsingTask::CountingSemaphoreUsingTask(const uint8_t maxCount, + uint8_t initCount): maxCount(maxCount) { + if(initCount > maxCount) { + sif::error << "CountingSemaphoreUsingTask: Max count bigger than " + "intial cout. Setting initial count to max count." << std::endl; + initCount = maxCount; + } + + handle = TaskManagement::getCurrentTaskHandle(); + if(handle == nullptr) { + sif::error << "CountingSemaphoreUsingTask: Could not retrieve task " + "handle. Please ensure the constructor was called inside a " + "task." << std::endl; + } + + uint32_t oldNotificationValue; + xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, + &oldNotificationValue); + if(oldNotificationValue != 0) { + sif::warning << "CountinSemaphoreUsingTask: Semaphore initiated but " + "current notification value is not 0. Please ensure the " + "notification value is not used for other purposes!" << std::endl; + } + for(int i = 0; i < initCount; i++) { + xTaskNotifyGive(handle); + } +} + +CountingSemaphoreUsingTask::~CountingSemaphoreUsingTask() { + // Clear notification value on destruction. + // If this is not desired, don't call the destructor + // (or implement a boolean which disables the reset) + xTaskNotifyAndQuery(handle, 0, eSetValueWithOverwrite, nullptr); +} + +ReturnValue_t CountingSemaphoreUsingTask::acquire(TimeoutType timeoutType, + uint32_t timeoutMs) { + TickType_t timeout = 0; + if(timeoutType == TimeoutType::POLLING) { + timeout = 0; + } + else if(timeoutType == TimeoutType::WAITING){ + timeout = pdMS_TO_TICKS(timeoutMs); + } + else { + timeout = portMAX_DELAY; + } + return acquireWithTickTimeout(timeoutType, timeout); + +} + +ReturnValue_t CountingSemaphoreUsingTask::acquireWithTickTimeout( + TimeoutType timeoutType, TickType_t timeoutTicks) { + // Decrement notfication value without resetting it. + BaseType_t oldCount = ulTaskNotifyTake(pdFALSE, timeoutTicks); + if (getSemaphoreCounter() == oldCount - 1) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + return SemaphoreIF::SEMAPHORE_TIMEOUT; + } +} + +ReturnValue_t CountingSemaphoreUsingTask::release() { + if(getSemaphoreCounter() == maxCount) { + return SemaphoreIF::SEMAPHORE_NOT_OWNED; + } + return release(handle); +} + +ReturnValue_t CountingSemaphoreUsingTask::release( + TaskHandle_t taskToNotify) { + BaseType_t returncode = xTaskNotifyGive(taskToNotify); + if (returncode == pdPASS) { + return HasReturnvaluesIF::RETURN_OK; + } + else { + // This should never happen. + return HasReturnvaluesIF::RETURN_FAILED; + } +} + + +uint8_t CountingSemaphoreUsingTask::getSemaphoreCounter() const { + uint32_t notificationValue = 0; + xTaskNotifyAndQuery(handle, 0, eNoAction, ¬ificationValue); + return notificationValue; +} + +TaskHandle_t CountingSemaphoreUsingTask::getTaskHandle() { + return handle; +} + +ReturnValue_t CountingSemaphoreUsingTask::releaseFromISR( + TaskHandle_t taskToNotify, BaseType_t* higherPriorityTaskWoken) { + vTaskNotifyGiveFromISR(taskToNotify, higherPriorityTaskWoken); + return HasReturnvaluesIF::RETURN_OK; +} + +uint8_t CountingSemaphoreUsingTask::getSemaphoreCounterFromISR( + TaskHandle_t task, BaseType_t* higherPriorityTaskWoken) { + uint32_t notificationValue; + xTaskNotifyAndQueryFromISR(task, 0, eNoAction, ¬ificationValue, + higherPriorityTaskWoken); + return notificationValue; +} + +uint8_t CountingSemaphoreUsingTask::getMaxCount() const { + return maxCount; +} diff --git a/osal/FreeRTOS/CountingSemaphUsingTask.h b/osal/FreeRTOS/CountingSemaphUsingTask.h index f1d82c1d..e3733382 100644 --- a/osal/FreeRTOS/CountingSemaphUsingTask.h +++ b/osal/FreeRTOS/CountingSemaphUsingTask.h @@ -1,100 +1,102 @@ -#ifndef FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ -#define FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ - -#include -#include - -extern "C" { -#include -#include -} - -/** - * @brief Couting Semaphore implementation which uses the notification value - * of the task. The notification value should therefore not be used - * for other purposes. - * @details - * Additional information: https://www.freertos.org/RTOS-task-notifications.html - * and general semaphore documentation. - */ -class CountingSemaphoreUsingTask: public SemaphoreIF { -public: - CountingSemaphoreUsingTask(const uint8_t maxCount, uint8_t initCount); - virtual ~CountingSemaphoreUsingTask(); - - /** - * Acquire the counting semaphore. - * If no semaphores are available, the task will be blocked - * for a maximum of #timeoutMs or until one is given back, - * for example by an ISR or another task. - * @param timeoutMs - * @return -@c RETURN_OK on success - * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout - */ - ReturnValue_t acquire(uint32_t timeoutMs = SemaphoreIF::BLOCKING) override; - - /** - * Release a semaphore, increasing the number of available counting - * semaphores up to the #maxCount value. - * @return -@c RETURN_OK on success - * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are - * already available. - */ - ReturnValue_t release() override; - - uint8_t getSemaphoreCounter() const override; - /** - * Get the semaphore counter from an ISR. - * @param task - * @param higherPriorityTaskWoken This will be set to pdPASS if a task with - * a higher priority was unblocked. A context switch should be requested - * from an ISR if this is the case (see TaskManagement functions) - * @return - */ - static uint8_t getSemaphoreCounterFromISR(TaskHandle_t task, - BaseType_t* higherPriorityTaskWoken); - - /** - * Acquire with a timeout value in ticks - * @param timeoutTicks - * @return -@c RETURN_OK on success - * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout - */ - ReturnValue_t acquireWithTickTimeout( - TickType_t timeoutTicks = SemaphoreIF::BLOCKING); - - /** - * Get handle to the task related to the semaphore. - * @return - */ - TaskHandle_t getTaskHandle(); - - /** - * Release semaphore of task by supplying task handle - * @param taskToNotify - * @return -@c RETURN_OK on success - * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are - * already available. - */ - static ReturnValue_t release(TaskHandle_t taskToNotify); - /** - * Release seamphore of a task from an ISR. - * @param taskToNotify - * @param higherPriorityTaskWoken This will be set to pdPASS if a task with - * a higher priority was unblocked. A context switch should be requested - * from an ISR if this is the case (see TaskManagement functions) - * @return -@c RETURN_OK on success - * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are - * already available. - */ - static ReturnValue_t releaseFromISR(TaskHandle_t taskToNotify, - BaseType_t* higherPriorityTaskWoken); - - uint8_t getMaxCount() const; - -private: - TaskHandle_t handle; - const uint8_t maxCount; -}; - -#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ */ +#ifndef FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ +#define FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ + +#include "../../osal/FreeRTOS/CountingSemaphUsingTask.h" +#include "../../tasks/SemaphoreIF.h" + +extern "C" { +#include +#include +} + +/** + * @brief Couting Semaphore implementation which uses the notification value + * of the task. The notification value should therefore not be used + * for other purposes. + * @details + * Additional information: https://www.freertos.org/RTOS-task-notifications.html + * and general semaphore documentation. + */ +class CountingSemaphoreUsingTask: public SemaphoreIF { +public: + CountingSemaphoreUsingTask(const uint8_t maxCount, uint8_t initCount); + virtual ~CountingSemaphoreUsingTask(); + + /** + * Acquire the counting semaphore. + * If no semaphores are available, the task will be blocked + * for a maximum of #timeoutMs or until one is given back, + * for example by an ISR or another task. + * @param timeoutMs + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout + */ + ReturnValue_t acquire(TimeoutType timeoutType = TimeoutType::BLOCKING, + uint32_t timeoutMs = portMAX_DELAY) override; + + /** + * Release a semaphore, increasing the number of available counting + * semaphores up to the #maxCount value. + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are + * already available. + */ + ReturnValue_t release() override; + + uint8_t getSemaphoreCounter() const override; + /** + * Get the semaphore counter from an ISR. + * @param task + * @param higherPriorityTaskWoken This will be set to pdPASS if a task with + * a higher priority was unblocked. A context switch should be requested + * from an ISR if this is the case (see TaskManagement functions) + * @return + */ + static uint8_t getSemaphoreCounterFromISR(TaskHandle_t task, + BaseType_t* higherPriorityTaskWoken); + + /** + * Acquire with a timeout value in ticks + * @param timeoutTicks + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout + */ + ReturnValue_t acquireWithTickTimeout( + TimeoutType timeoutType = TimeoutType::BLOCKING, + TickType_t timeoutTicks = portMAX_DELAY); + + /** + * Get handle to the task related to the semaphore. + * @return + */ + TaskHandle_t getTaskHandle(); + + /** + * Release semaphore of task by supplying task handle + * @param taskToNotify + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are + * already available. + */ + static ReturnValue_t release(TaskHandle_t taskToNotify); + /** + * Release seamphore of a task from an ISR. + * @param taskToNotify + * @param higherPriorityTaskWoken This will be set to pdPASS if a task with + * a higher priority was unblocked. A context switch should be requested + * from an ISR if this is the case (see TaskManagement functions) + * @return -@c RETURN_OK on success + * -@c SemaphoreIF::SEMAPHORE_NOT_OWNED if #maxCount semaphores are + * already available. + */ + static ReturnValue_t releaseFromISR(TaskHandle_t taskToNotify, + BaseType_t* higherPriorityTaskWoken); + + uint8_t getMaxCount() const; + +private: + TaskHandle_t handle; + const uint8_t maxCount; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHUSINGTASK_H_ */ diff --git a/osal/FreeRTOS/CountingSemaphore.cpp b/osal/FreeRTOS/CountingSemaphore.cpp index 957f6a31..0b218e54 100644 --- a/osal/FreeRTOS/CountingSemaphore.cpp +++ b/osal/FreeRTOS/CountingSemaphore.cpp @@ -1,43 +1,43 @@ -#include -#include -#include - -#include - -// Make sure #define configUSE_COUNTING_SEMAPHORES 1 is set in -// free FreeRTOSConfig.h file. -CountingSemaphore::CountingSemaphore(const uint8_t maxCount, uint8_t initCount): - maxCount(maxCount), initCount(initCount) { - if(initCount > maxCount) { - sif::error << "CountingSemaphoreUsingTask: Max count bigger than " - "intial cout. Setting initial count to max count." << std::endl; - initCount = maxCount; - } - - handle = xSemaphoreCreateCounting(maxCount, initCount); - if(handle == nullptr) { - sif::error << "CountingSemaphore: Creation failure" << std::endl; - } -} - -CountingSemaphore::CountingSemaphore(CountingSemaphore&& other): - maxCount(other.maxCount), initCount(other.initCount) { - handle = xSemaphoreCreateCounting(other.maxCount, other.initCount); - if(handle == nullptr) { - sif::error << "CountingSemaphore: Creation failure" << std::endl; - } -} - -CountingSemaphore& CountingSemaphore::operator =( - CountingSemaphore&& other) { - handle = xSemaphoreCreateCounting(other.maxCount, other.initCount); - if(handle == nullptr) { - sif::error << "CountingSemaphore: Creation failure" << std::endl; - } - return * this; -} - - -uint8_t CountingSemaphore::getMaxCount() const { - return maxCount; -} +#include "../../osal/FreeRTOS/CountingSemaphore.h" +#include "../../serviceinterface/ServiceInterfaceStream.h" +#include "../../osal/FreeRTOS/TaskManagement.h" + +#include + +// Make sure #define configUSE_COUNTING_SEMAPHORES 1 is set in +// free FreeRTOSConfig.h file. +CountingSemaphore::CountingSemaphore(const uint8_t maxCount, uint8_t initCount): + maxCount(maxCount), initCount(initCount) { + if(initCount > maxCount) { + sif::error << "CountingSemaphoreUsingTask: Max count bigger than " + "intial cout. Setting initial count to max count." << std::endl; + initCount = maxCount; + } + + handle = xSemaphoreCreateCounting(maxCount, initCount); + if(handle == nullptr) { + sif::error << "CountingSemaphore: Creation failure" << std::endl; + } +} + +CountingSemaphore::CountingSemaphore(CountingSemaphore&& other): + maxCount(other.maxCount), initCount(other.initCount) { + handle = xSemaphoreCreateCounting(other.maxCount, other.initCount); + if(handle == nullptr) { + sif::error << "CountingSemaphore: Creation failure" << std::endl; + } +} + +CountingSemaphore& CountingSemaphore::operator =( + CountingSemaphore&& other) { + handle = xSemaphoreCreateCounting(other.maxCount, other.initCount); + if(handle == nullptr) { + sif::error << "CountingSemaphore: Creation failure" << std::endl; + } + return * this; +} + + +uint8_t CountingSemaphore::getMaxCount() const { + return maxCount; +} diff --git a/osal/FreeRTOS/CountingSemaphore.h b/osal/FreeRTOS/CountingSemaphore.h index dca3ab0e..9432ed81 100644 --- a/osal/FreeRTOS/CountingSemaphore.h +++ b/osal/FreeRTOS/CountingSemaphore.h @@ -1,34 +1,34 @@ -#ifndef FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ -#define FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ -#include - -/** - * @brief Counting semaphores, which can be acquire more than once. - * @details - * See: https://www.freertos.org/CreateCounting.html - * API of counting semaphores is almost identical to binary semaphores, - * so we just inherit from binary semaphore and provide the respective - * constructors. - */ -class CountingSemaphore: public BinarySemaphore { -public: - CountingSemaphore(const uint8_t maxCount, uint8_t initCount); - //! @brief Copy ctor, disabled - CountingSemaphore(const CountingSemaphore&) = delete; - //! @brief Copy assignment, disabled - CountingSemaphore& operator=(const CountingSemaphore&) = delete; - //! @brief Move ctor - CountingSemaphore (CountingSemaphore &&); - //! @brief Move assignment - CountingSemaphore & operator=(CountingSemaphore &&); - - /* Same API as binary semaphore otherwise. acquire() can be called - * until there are not semaphores left and release() can be called - * until maxCount is reached. */ - uint8_t getMaxCount() const; -private: - const uint8_t maxCount; - uint8_t initCount = 0; -}; - -#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ */ +#ifndef FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ +#define FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ +#include "../../osal/FreeRTOS/BinarySemaphore.h" + +/** + * @brief Counting semaphores, which can be acquire more than once. + * @details + * See: https://www.freertos.org/CreateCounting.html + * API of counting semaphores is almost identical to binary semaphores, + * so we just inherit from binary semaphore and provide the respective + * constructors. + */ +class CountingSemaphore: public BinarySemaphore { +public: + CountingSemaphore(const uint8_t maxCount, uint8_t initCount); + //! @brief Copy ctor, disabled + CountingSemaphore(const CountingSemaphore&) = delete; + //! @brief Copy assignment, disabled + CountingSemaphore& operator=(const CountingSemaphore&) = delete; + //! @brief Move ctor + CountingSemaphore (CountingSemaphore &&); + //! @brief Move assignment + CountingSemaphore & operator=(CountingSemaphore &&); + + /* Same API as binary semaphore otherwise. acquire() can be called + * until there are not semaphores left and release() can be called + * until maxCount is reached. */ + uint8_t getMaxCount() const; +private: + const uint8_t maxCount; + uint8_t initCount = 0; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ */ diff --git a/osal/FreeRTOS/SemaphoreFactory.cpp b/osal/FreeRTOS/SemaphoreFactory.cpp index 78427f6c..8575cf4a 100644 --- a/osal/FreeRTOS/SemaphoreFactory.cpp +++ b/osal/FreeRTOS/SemaphoreFactory.cpp @@ -1,61 +1,59 @@ -#include -#include -#include -#include -#include -#include - -SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; -const uint32_t SemaphoreIF::POLLING = 0; -const uint32_t SemaphoreIF::BLOCKING = portMAX_DELAY; - -static const uint32_t USE_REGULAR_SEMAPHORES = 0; -static const uint32_t USE_TASK_NOTIFICATIONS = 1; - -SemaphoreFactory::SemaphoreFactory() { -} - -SemaphoreFactory::~SemaphoreFactory() { - delete factoryInstance; -} - -SemaphoreFactory* SemaphoreFactory::instance() { - if (factoryInstance == nullptr){ - factoryInstance = new SemaphoreFactory(); - } - return SemaphoreFactory::factoryInstance; -} - -SemaphoreIF* SemaphoreFactory::createBinarySemaphore(uint32_t argument) { - if(argument == USE_REGULAR_SEMAPHORES) { - return new BinarySemaphore(); - } - else if(argument == USE_TASK_NOTIFICATIONS) { - return new BinarySemaphoreUsingTask(); - } - else { - sif::warning << "SemaphoreFactory: Invalid argument, return regular" - "binary semaphore" << std::endl; - return new BinarySemaphore(); - } -} - -SemaphoreIF* SemaphoreFactory::createCountingSemaphore(uint8_t maxCount, - uint8_t initCount, uint32_t argument) { - if(argument == USE_REGULAR_SEMAPHORES) { - return new CountingSemaphore(maxCount, initCount); - } - else if(argument == USE_TASK_NOTIFICATIONS) { - return new CountingSemaphoreUsingTask(maxCount, initCount); - } - else { - sif::warning << "SemaphoreFactory: Invalid argument, return regular" - "binary semaphore" << std::endl; - return new CountingSemaphore(maxCount, initCount); - } - -} - -void SemaphoreFactory::deleteSemaphore(SemaphoreIF* semaphore) { - delete semaphore; -} +#include "../../osal/FreeRTOS/BinarySemaphore.h" +#include "../../osal/FreeRTOS/BinSemaphUsingTask.h" +#include "../../osal/FreeRTOS/CountingSemaphore.h" +#include "../../osal/FreeRTOS/CountingSemaphUsingTask.h" +#include "../../tasks/SemaphoreFactory.h" +#include "../../serviceinterface/ServiceInterfaceStream.h" + +SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; + +static const uint32_t USE_REGULAR_SEMAPHORES = 0; +static const uint32_t USE_TASK_NOTIFICATIONS = 1; + +SemaphoreFactory::SemaphoreFactory() { +} + +SemaphoreFactory::~SemaphoreFactory() { + delete factoryInstance; +} + +SemaphoreFactory* SemaphoreFactory::instance() { + if (factoryInstance == nullptr){ + factoryInstance = new SemaphoreFactory(); + } + return SemaphoreFactory::factoryInstance; +} + +SemaphoreIF* SemaphoreFactory::createBinarySemaphore(uint32_t argument) { + if(argument == USE_REGULAR_SEMAPHORES) { + return new BinarySemaphore(); + } + else if(argument == USE_TASK_NOTIFICATIONS) { + return new BinarySemaphoreUsingTask(); + } + else { + sif::warning << "SemaphoreFactory: Invalid argument, return regular" + "binary semaphore" << std::endl; + return new BinarySemaphore(); + } +} + +SemaphoreIF* SemaphoreFactory::createCountingSemaphore(uint8_t maxCount, + uint8_t initCount, uint32_t argument) { + if(argument == USE_REGULAR_SEMAPHORES) { + return new CountingSemaphore(maxCount, initCount); + } + else if(argument == USE_TASK_NOTIFICATIONS) { + return new CountingSemaphoreUsingTask(maxCount, initCount); + } + else { + sif::warning << "SemaphoreFactory: Invalid argument, return regular" + "binary semaphore" << std::endl; + return new CountingSemaphore(maxCount, initCount); + } + +} + +void SemaphoreFactory::deleteSemaphore(SemaphoreIF* semaphore) { + delete semaphore; +} diff --git a/tasks/SemaphoreIF.h b/tasks/SemaphoreIF.h index 4fc92ebd..30d4ed88 100644 --- a/tasks/SemaphoreIF.h +++ b/tasks/SemaphoreIF.h @@ -1,72 +1,68 @@ -#ifndef FRAMEWORK_TASKS_SEMAPHOREIF_H_ -#define FRAMEWORK_TASKS_SEMAPHOREIF_H_ -#include -#include -#include - -/** - * @brief Generic interface for semaphores, which can be used to achieve - * task synchronization. This is a generic interface which can be - * used for both binary semaphores and counting semaphores. - * @details - * A semaphore is a synchronization primitive. - * See: https://en.wikipedia.org/wiki/Semaphore_(programming) - * A semaphore can be used to achieve task synchonization and track the - * availability of resources by using either the binary or the counting - * semaphore types. - * - * If mutual exlcusion of a resource is desired, a mutex should be used, - * which is a special form of a semaphore and has an own interface. - */ -class SemaphoreIF { -public: - virtual~ SemaphoreIF() {}; - /** - * @brief Timeout value used for polling lock attempt. - * @details - * If the lock is not successfull, MUTEX_TIMEOUT will be returned - * immediately. Value needs to be defined in implementation. - */ - static const uint32_t POLLING; - /** - * @brief Timeout value used for permanent blocking lock attempt. - * @details - * The task will be blocked (indefinitely) until the mutex is unlocked. - * Value needs to be defined in implementation. - */ - static const uint32_t BLOCKING; - - static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; - //! Semaphore timeout - static constexpr ReturnValue_t SEMAPHORE_TIMEOUT = MAKE_RETURN_CODE(1); - //! The current semaphore can not be given, because it is not owned - static constexpr ReturnValue_t SEMAPHORE_NOT_OWNED = MAKE_RETURN_CODE(2); - static constexpr ReturnValue_t SEMAPHORE_INVALID = MAKE_RETURN_CODE(3); - - /** - * Generic call to acquire a semaphore. - * If there are no more semaphores to be taken (for a counting semaphore, - * a semaphore may be taken more than once), the taks will block - * for a maximum of timeoutMs while trying to acquire the semaphore. - * This can be used to achieve task synchrnization. - * @param timeoutMs - * @return - c RETURN_OK for successfull acquisition - */ - virtual ReturnValue_t acquire(uint32_t timeoutMs) = 0; - - /** - * Corrensponding call to release a semaphore. - * @return -@c RETURN_OK for successfull release - */ - virtual ReturnValue_t release() = 0; - - /** - * If the semaphore is a counting semaphore then the semaphores current - * count value is returned. If the semaphore is a binary semaphore then 1 - * is returned if the semaphore is available, and 0 is returned if the - * semaphore is not available. - */ - virtual uint8_t getSemaphoreCounter() const = 0; -}; - -#endif /* FRAMEWORK_TASKS_SEMAPHOREIF_H_ */ +#ifndef FRAMEWORK_TASKS_SEMAPHOREIF_H_ +#define FRAMEWORK_TASKS_SEMAPHOREIF_H_ +#include "../returnvalues/FwClassIds.h" +#include "../returnvalues/HasReturnvaluesIF.h" +#include + +/** + * @brief Generic interface for semaphores, which can be used to achieve + * task synchronization. This is a generic interface which can be + * used for both binary semaphores and counting semaphores. + * @details + * A semaphore is a synchronization primitive. + * See: https://en.wikipedia.org/wiki/Semaphore_(programming) + * A semaphore can be used to achieve task synchonization and track the + * availability of resources by using either the binary or the counting + * semaphore types. + * + * If mutual exlcusion of a resource is desired, a mutex should be used, + * which is a special form of a semaphore and has an own interface. + */ +class SemaphoreIF { +public: + /** + * Different types of timeout for the mutex lock. + */ + enum TimeoutType { + POLLING, //!< If mutex is not available, return immediately + WAITING, //!< Wait a specified time for the mutex to become available + BLOCKING //!< Block indefinitely until the mutex becomes available. + }; + + virtual~ SemaphoreIF() {}; + + static const uint8_t INTERFACE_ID = CLASS_ID::SEMAPHORE_IF; + //! Semaphore timeout + static constexpr ReturnValue_t SEMAPHORE_TIMEOUT = MAKE_RETURN_CODE(1); + //! The current semaphore can not be given, because it is not owned + static constexpr ReturnValue_t SEMAPHORE_NOT_OWNED = MAKE_RETURN_CODE(2); + static constexpr ReturnValue_t SEMAPHORE_INVALID = MAKE_RETURN_CODE(3); + + /** + * Generic call to acquire a semaphore. + * If there are no more semaphores to be taken (for a counting semaphore, + * a semaphore may be taken more than once), the taks will block + * for a maximum of timeoutMs while trying to acquire the semaphore. + * This can be used to achieve task synchrnization. + * @param timeoutMs + * @return - c RETURN_OK for successfull acquisition + */ + virtual ReturnValue_t acquire(TimeoutType timeoutType = + TimeoutType::BLOCKING, uint32_t timeoutMs = 0) = 0; + + /** + * Corrensponding call to release a semaphore. + * @return -@c RETURN_OK for successfull release + */ + virtual ReturnValue_t release() = 0; + + /** + * If the semaphore is a counting semaphore then the semaphores current + * count value is returned. If the semaphore is a binary semaphore then 1 + * is returned if the semaphore is available, and 0 is returned if the + * semaphore is not available. + */ + virtual uint8_t getSemaphoreCounter() const = 0; +}; + +#endif /* FRAMEWORK_TASKS_SEMAPHOREIF_H_ */ From 073f168b9507800d11ddcee8f63deb6025c513e7 Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Thu, 27 Aug 2020 16:27:54 +0200 Subject: [PATCH 10/13] task management function taken over from master --- osal/FreeRTOS/TaskManagement.cpp | 23 ++++++++++++----------- osal/FreeRTOS/TaskManagement.h | 23 ++++++++++++----------- 2 files changed, 24 insertions(+), 22 deletions(-) diff --git a/osal/FreeRTOS/TaskManagement.cpp b/osal/FreeRTOS/TaskManagement.cpp index 7871ab2e..16682d36 100644 --- a/osal/FreeRTOS/TaskManagement.cpp +++ b/osal/FreeRTOS/TaskManagement.cpp @@ -1,23 +1,24 @@ -#include - -void TaskManagement::requestContextSwitchFromTask() { +#include "../../osal/FreeRTOS/TaskManagement.h" + +void TaskManagement::vRequestContextSwitchFromTask() { vTaskDelay(0); } - + void TaskManagement::requestContextSwitch( - CallContext callContext = CallContext::TASK) { + CallContext callContext = CallContext::TASK) { if(callContext == CallContext::ISR) { // This function depends on the partmacro.h definition for the specific device - requestContextSwitchFromISR(); + vRequestContextSwitchFromISR(); } else { - requestContextSwitchFromTask(); + vRequestContextSwitchFromTask(); } } - + TaskHandle_t TaskManagement::getCurrentTaskHandle() { return xTaskGetCurrentTaskHandle(); } -configSTACK_DEPTH_TYPE TaskManagement::getTaskStackHighWatermark() { - return uxTaskGetStackHighWaterMark(TaskManagement::getCurrentTaskHandle()); -} +size_t TaskManagement::getTaskStackHighWatermark( + TaskHandle_t task) { + return uxTaskGetStackHighWaterMark(task) * sizeof(StackType_t); +} diff --git a/osal/FreeRTOS/TaskManagement.h b/osal/FreeRTOS/TaskManagement.h index 39c24377..43003d76 100644 --- a/osal/FreeRTOS/TaskManagement.h +++ b/osal/FreeRTOS/TaskManagement.h @@ -1,25 +1,25 @@ #ifndef FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_ #define FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_ -#include +#include "../../returnvalues/HasReturnvaluesIF.h" extern "C" { #include #include } #include - + /** * Architecture dependant portmacro.h function call. * Should be implemented in bsp. */ -extern "C" void requestContextSwitchFromISR(); +extern void vRequestContextSwitchFromISR(); /*! * Used by functions to tell if they are being called from - * within an ISR or from a regular task. This is required because FreeRTOS + * within an ISR or from a regular task. This is required because FreeRTOS * has different functions for handling semaphores and messages from within - * an ISR and task. + * an ISR and task. */ enum class CallContext { TASK = 0x00,//!< task_context @@ -29,19 +29,19 @@ enum class CallContext { class TaskManagement { public: - /** + /** * @brief In this function, a function dependant on the portmacro.h header * function calls to request a context switch can be specified. * This can be used if sending to the queue from an ISR caused a task - * to unblock and a context switch is required. + * to unblock and a context switch is required. */ static void requestContextSwitch(CallContext callContext); /** * If task preemption in FreeRTOS is disabled, a context switch * can be requested manually by calling this function. - */ - static void requestContextSwitchFromTask(void); + */ + static void vRequestContextSwitchFromTask(void); /** * @return The current task handle @@ -56,8 +56,9 @@ public: * E.g. on a 32 bit machine, a value of 200 means 800 bytes. * @return Smallest value of stack remaining since the task was started in * words. - */ - static configSTACK_DEPTH_TYPE getTaskStackHighWatermark(); + */ + static size_t getTaskStackHighWatermark( + TaskHandle_t task = nullptr); }; #endif /* FRAMEWORK_OSAL_FREERTOS_TASKMANAGEMENT_H_ */ From 73db79a3fefb1d7153a9a6f9cbaceb55b725d494 Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Thu, 27 Aug 2020 17:06:10 +0200 Subject: [PATCH 11/13] updated linux implementation --- osal/linux/BinarySemaphore.cpp | 13 ++-- osal/linux/BinarySemaphore.h | 8 +-- osal/linux/CountingSemaphore.cpp | 108 +++++++++++++++---------------- osal/linux/CountingSemaphore.h | 74 ++++++++++----------- osal/linux/SemaphoreFactory.cpp | 69 ++++++++++---------- 5 files changed, 135 insertions(+), 137 deletions(-) diff --git a/osal/linux/BinarySemaphore.cpp b/osal/linux/BinarySemaphore.cpp index e2ad9b58..5216ff37 100644 --- a/osal/linux/BinarySemaphore.cpp +++ b/osal/linux/BinarySemaphore.cpp @@ -1,5 +1,5 @@ -#include -#include +#include "../../osal/linux/BinarySemaphore.h" +#include "../../serviceinterface/ServiceInterfaceStream.h" extern "C" { #include @@ -25,15 +25,16 @@ BinarySemaphore& BinarySemaphore::operator =( return * this; } -ReturnValue_t BinarySemaphore::acquire(uint32_t timeoutMs) { +ReturnValue_t BinarySemaphore::acquire(TimeoutType timeoutType, + uint32_t timeoutMs) { int result = 0; - if(timeoutMs == SemaphoreIF::POLLING) { + if(timeoutType == TimeoutType::POLLING) { result = sem_trywait(&handle); } - else if(timeoutMs == SemaphoreIF::BLOCKING) { + else if(timeoutType == TimeoutType::BLOCKING) { result = sem_wait(&handle); } - else if(timeoutMs > SemaphoreIF::POLLING){ + else if(timeoutType == TimeoutType::WAITING){ timespec timeOut; clock_gettime(CLOCK_REALTIME, &timeOut); uint64_t nseconds = timeOut.tv_sec * 1000000000 + timeOut.tv_nsec; diff --git a/osal/linux/BinarySemaphore.h b/osal/linux/BinarySemaphore.h index 9d4ed1cd..4181de85 100644 --- a/osal/linux/BinarySemaphore.h +++ b/osal/linux/BinarySemaphore.h @@ -1,8 +1,8 @@ #ifndef FRAMEWORK_OSAL_LINUX_BINARYSEMPAHORE_H_ #define FRAMEWORK_OSAL_LINUX_BINARYSEMPAHORE_H_ -#include -#include +#include "../../returnvalues/HasReturnvaluesIF.h" +#include "../../tasks/SemaphoreIF.h" extern "C" { #include @@ -49,8 +49,8 @@ public: * @return -@c RETURN_OK on success * -@c SemaphoreIF::SEMAPHORE_TIMEOUT on timeout */ - ReturnValue_t acquire(uint32_t timeoutMs = - SemaphoreIF::BLOCKING) override; + ReturnValue_t acquire(TimeoutType timeoutType = TimeoutType::BLOCKING, + uint32_t timeoutMs = 0) override; /** * Release the binary semaphore. diff --git a/osal/linux/CountingSemaphore.cpp b/osal/linux/CountingSemaphore.cpp index dfc4d801..ef32539b 100644 --- a/osal/linux/CountingSemaphore.cpp +++ b/osal/linux/CountingSemaphore.cpp @@ -1,54 +1,54 @@ -#include -#include - -CountingSemaphore::CountingSemaphore(const uint8_t maxCount, uint8_t initCount): - maxCount(maxCount), initCount(initCount) { - if(initCount > maxCount) { - sif::error << "CountingSemaphoreUsingTask: Max count bigger than " - "intial cout. Setting initial count to max count." << std::endl; - initCount = maxCount; - } - - initSemaphore(initCount); -} - -CountingSemaphore::CountingSemaphore(CountingSemaphore&& other): - maxCount(other.maxCount), initCount(other.initCount) { - initSemaphore(initCount); -} - -CountingSemaphore& CountingSemaphore::operator =( - CountingSemaphore&& other) { - initSemaphore(other.initCount); - return * this; -} - -ReturnValue_t CountingSemaphore::release() { - ReturnValue_t result = checkCount(&handle, maxCount); - if(result != HasReturnvaluesIF::RETURN_OK) { - return result; - } - return CountingSemaphore::release(&this->handle); -} - -ReturnValue_t CountingSemaphore::release(sem_t* handle) { - int result = sem_post(handle); - if(result == 0) { - return HasReturnvaluesIF::RETURN_OK; - } - - switch(errno) { - case(EINVAL): - // Semaphore invalid - return SemaphoreIF::SEMAPHORE_INVALID; - case(EOVERFLOW): - // SEM_MAX_VALUE overflow. This should never happen - default: - return HasReturnvaluesIF::RETURN_FAILED; - } -} - -uint8_t CountingSemaphore::getMaxCount() const { - return maxCount; -} - +#include "../../osal/linux/CountingSemaphore.h" +#include "../../serviceinterface/ServiceInterfaceStream.h" + +CountingSemaphore::CountingSemaphore(const uint8_t maxCount, uint8_t initCount): + maxCount(maxCount), initCount(initCount) { + if(initCount > maxCount) { + sif::error << "CountingSemaphoreUsingTask: Max count bigger than " + "intial cout. Setting initial count to max count." << std::endl; + initCount = maxCount; + } + + initSemaphore(initCount); +} + +CountingSemaphore::CountingSemaphore(CountingSemaphore&& other): + maxCount(other.maxCount), initCount(other.initCount) { + initSemaphore(initCount); +} + +CountingSemaphore& CountingSemaphore::operator =( + CountingSemaphore&& other) { + initSemaphore(other.initCount); + return * this; +} + +ReturnValue_t CountingSemaphore::release() { + ReturnValue_t result = checkCount(&handle, maxCount); + if(result != HasReturnvaluesIF::RETURN_OK) { + return result; + } + return CountingSemaphore::release(&this->handle); +} + +ReturnValue_t CountingSemaphore::release(sem_t* handle) { + int result = sem_post(handle); + if(result == 0) { + return HasReturnvaluesIF::RETURN_OK; + } + + switch(errno) { + case(EINVAL): + // Semaphore invalid + return SemaphoreIF::SEMAPHORE_INVALID; + case(EOVERFLOW): + // SEM_MAX_VALUE overflow. This should never happen + default: + return HasReturnvaluesIF::RETURN_FAILED; + } +} + +uint8_t CountingSemaphore::getMaxCount() const { + return maxCount; +} + diff --git a/osal/linux/CountingSemaphore.h b/osal/linux/CountingSemaphore.h index ba606595..afe21a61 100644 --- a/osal/linux/CountingSemaphore.h +++ b/osal/linux/CountingSemaphore.h @@ -1,37 +1,37 @@ -#ifndef FRAMEWORK_OSAL_LINUX_COUNTINGSEMAPHORE_H_ -#define FRAMEWORK_OSAL_LINUX_COUNTINGSEMAPHORE_H_ -#include - -/** - * @brief Counting semaphores, which can be acquired more than once. - * @details - * See: https://www.freertos.org/CreateCounting.html - * API of counting semaphores is almost identical to binary semaphores, - * so we just inherit from binary semaphore and provide the respective - * constructors. - */ -class CountingSemaphore: public BinarySemaphore { -public: - CountingSemaphore(const uint8_t maxCount, uint8_t initCount); - //! @brief Copy ctor, disabled - CountingSemaphore(const CountingSemaphore&) = delete; - //! @brief Copy assignment, disabled - CountingSemaphore& operator=(const CountingSemaphore&) = delete; - //! @brief Move ctor - CountingSemaphore (CountingSemaphore &&); - //! @brief Move assignment - CountingSemaphore & operator=(CountingSemaphore &&); - - ReturnValue_t release() override; - static ReturnValue_t release(sem_t* sem); - /* Same API as binary semaphore otherwise. acquire() can be called - * until there are not semaphores left and release() can be called - * until maxCount is reached. */ - - uint8_t getMaxCount() const; -private: - const uint8_t maxCount; - uint8_t initCount = 0; -}; - -#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ */ +#ifndef FRAMEWORK_OSAL_LINUX_COUNTINGSEMAPHORE_H_ +#define FRAMEWORK_OSAL_LINUX_COUNTINGSEMAPHORE_H_ +#include "../../osal/linux/BinarySemaphore.h" + +/** + * @brief Counting semaphores, which can be acquired more than once. + * @details + * See: https://www.freertos.org/CreateCounting.html + * API of counting semaphores is almost identical to binary semaphores, + * so we just inherit from binary semaphore and provide the respective + * constructors. + */ +class CountingSemaphore: public BinarySemaphore { +public: + CountingSemaphore(const uint8_t maxCount, uint8_t initCount); + //! @brief Copy ctor, disabled + CountingSemaphore(const CountingSemaphore&) = delete; + //! @brief Copy assignment, disabled + CountingSemaphore& operator=(const CountingSemaphore&) = delete; + //! @brief Move ctor + CountingSemaphore (CountingSemaphore &&); + //! @brief Move assignment + CountingSemaphore & operator=(CountingSemaphore &&); + + ReturnValue_t release() override; + static ReturnValue_t release(sem_t* sem); + /* Same API as binary semaphore otherwise. acquire() can be called + * until there are not semaphores left and release() can be called + * until maxCount is reached. */ + + uint8_t getMaxCount() const; +private: + const uint8_t maxCount; + uint8_t initCount = 0; +}; + +#endif /* FRAMEWORK_OSAL_FREERTOS_COUNTINGSEMAPHORE_H_ */ diff --git a/osal/linux/SemaphoreFactory.cpp b/osal/linux/SemaphoreFactory.cpp index 4fbd60d9..805865ca 100644 --- a/osal/linux/SemaphoreFactory.cpp +++ b/osal/linux/SemaphoreFactory.cpp @@ -1,36 +1,33 @@ -#include -#include -#include -#include - -const uint32_t SemaphoreIF::POLLING = 0; -const uint32_t SemaphoreIF::BLOCKING = 0xffffffff; - -SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; - -SemaphoreFactory::SemaphoreFactory() { -} - -SemaphoreFactory::~SemaphoreFactory() { - delete factoryInstance; -} - -SemaphoreFactory* SemaphoreFactory::instance() { - if (factoryInstance == nullptr){ - factoryInstance = new SemaphoreFactory(); - } - return SemaphoreFactory::factoryInstance; -} - -SemaphoreIF* SemaphoreFactory::createBinarySemaphore(uint32_t arguments) { - return new BinarySemaphore(); -} - -SemaphoreIF* SemaphoreFactory::createCountingSemaphore(const uint8_t maxCount, - uint8_t initCount, uint32_t arguments) { - return new CountingSemaphore(maxCount, initCount); -} - -void SemaphoreFactory::deleteSemaphore(SemaphoreIF* semaphore) { - delete semaphore; -} +#include "../../tasks/SemaphoreFactory.h" +#include "../../osal/linux/BinarySemaphore.h" +#include "../../osal/linux/CountingSemaphore.h" +#include "../../serviceinterface/ServiceInterfaceStream.h" + +SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; + +SemaphoreFactory::SemaphoreFactory() { +} + +SemaphoreFactory::~SemaphoreFactory() { + delete factoryInstance; +} + +SemaphoreFactory* SemaphoreFactory::instance() { + if (factoryInstance == nullptr){ + factoryInstance = new SemaphoreFactory(); + } + return SemaphoreFactory::factoryInstance; +} + +SemaphoreIF* SemaphoreFactory::createBinarySemaphore(uint32_t arguments) { + return new BinarySemaphore(); +} + +SemaphoreIF* SemaphoreFactory::createCountingSemaphore(const uint8_t maxCount, + uint8_t initCount, uint32_t arguments) { + return new CountingSemaphore(maxCount, initCount); +} + +void SemaphoreFactory::deleteSemaphore(SemaphoreIF* semaphore) { + delete semaphore; +} From 3be253efd62cae876f3df5fc9689380d3309cf5d Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Thu, 27 Aug 2020 17:07:42 +0200 Subject: [PATCH 12/13] include fix --- tasks/SemaphoreFactory.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tasks/SemaphoreFactory.h b/tasks/SemaphoreFactory.h index 7f8edaf1..bffa59c8 100644 --- a/tasks/SemaphoreFactory.h +++ b/tasks/SemaphoreFactory.h @@ -1,6 +1,6 @@ #ifndef FRAMEWORK_TASKS_SEMAPHOREFACTORY_H_ #define FRAMEWORK_TASKS_SEMAPHOREFACTORY_H_ -#include +#include "../tasks/SemaphoreIF.h" /** * Creates Semaphore. From 0fedad6da09816c8a06615f3903a8e34545001bc Mon Sep 17 00:00:00 2001 From: "Robin.Mueller" Date: Thu, 27 Aug 2020 17:14:49 +0200 Subject: [PATCH 13/13] semaphore factory update --- osal/linux/SemaphoreFactory.cpp | 4 +- tasks/SemaphoreFactory.h | 99 +++++++++++++++++---------------- 2 files changed, 52 insertions(+), 51 deletions(-) diff --git a/osal/linux/SemaphoreFactory.cpp b/osal/linux/SemaphoreFactory.cpp index 805865ca..bcb5d16f 100644 --- a/osal/linux/SemaphoreFactory.cpp +++ b/osal/linux/SemaphoreFactory.cpp @@ -1,6 +1,6 @@ #include "../../tasks/SemaphoreFactory.h" -#include "../../osal/linux/BinarySemaphore.h" -#include "../../osal/linux/CountingSemaphore.h" +#include "BinarySemaphore.h" +#include "CountingSemaphore.h" #include "../../serviceinterface/ServiceInterfaceStream.h" SemaphoreFactory* SemaphoreFactory::factoryInstance = nullptr; diff --git a/tasks/SemaphoreFactory.h b/tasks/SemaphoreFactory.h index bffa59c8..2c41a135 100644 --- a/tasks/SemaphoreFactory.h +++ b/tasks/SemaphoreFactory.h @@ -1,49 +1,50 @@ -#ifndef FRAMEWORK_TASKS_SEMAPHOREFACTORY_H_ -#define FRAMEWORK_TASKS_SEMAPHOREFACTORY_H_ -#include "../tasks/SemaphoreIF.h" - -/** - * Creates Semaphore. - * This class is a "singleton" interface, i.e. it provides an - * interface, but also is the base class for a singleton. - */ -class SemaphoreFactory { -public: - virtual ~SemaphoreFactory(); - /** - * Returns the single instance of SemaphoreFactory. - * The implementation of #instance is found in its subclasses. - * Thus, we choose link-time variability of the instance. - */ - static SemaphoreFactory* instance(); - - /** - * Create a binary semaphore. - * Creator function for a binary semaphore which may only be acquired once - * @param argument Can be used to pass implementation specific information. - * @return Pointer to newly created semaphore class instance. - */ - SemaphoreIF* createBinarySemaphore(uint32_t arguments = 0); - /** - * Create a counting semaphore. - * Creator functons for a counting semaphore which may be acquired multiple - * times. - * @param count Semaphore can be taken count times. - * @param initCount Initial count value. - * @param argument Can be used to pass implementation specific information. - * @return - */ - SemaphoreIF* createCountingSemaphore(const uint8_t maxCount, - uint8_t initCount, uint32_t arguments = 0); - - void deleteSemaphore(SemaphoreIF* semaphore); - -private: - /** - * External instantiation is not allowed. - */ - SemaphoreFactory(); - static SemaphoreFactory* factoryInstance; -}; - -#endif /* FRAMEWORK_TASKS_SEMAPHOREFACTORY_H_ */ +#ifndef FSFW_TASKS_SEMAPHOREFACTORY_H_ +#define FSFW_TASKS_SEMAPHOREFACTORY_H_ + +#include "../tasks/SemaphoreIF.h" + +/** + * Creates Semaphore. + * This class is a "singleton" interface, i.e. it provides an + * interface, but also is the base class for a singleton. + */ +class SemaphoreFactory { +public: + virtual ~SemaphoreFactory(); + /** + * Returns the single instance of SemaphoreFactory. + * The implementation of #instance is found in its subclasses. + * Thus, we choose link-time variability of the instance. + */ + static SemaphoreFactory* instance(); + + /** + * Create a binary semaphore. + * Creator function for a binary semaphore which may only be acquired once + * @param argument Can be used to pass implementation specific information. + * @return Pointer to newly created semaphore class instance. + */ + SemaphoreIF* createBinarySemaphore(uint32_t arguments = 0); + /** + * Create a counting semaphore. + * Creator functons for a counting semaphore which may be acquired multiple + * times. + * @param count Semaphore can be taken count times. + * @param initCount Initial count value. + * @param argument Can be used to pass implementation specific information. + * @return + */ + SemaphoreIF* createCountingSemaphore(const uint8_t maxCount, + uint8_t initCount, uint32_t arguments = 0); + + void deleteSemaphore(SemaphoreIF* semaphore); + +private: + /** + * External instantiation is not allowed. + */ + SemaphoreFactory(); + static SemaphoreFactory* factoryInstance; +}; + +#endif /* FSFW_TASKS_SEMAPHOREFACTORY_H_ */