34 lines
893 B
C++
34 lines
893 B
C++
#pragma once
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// espressif includes
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#include <freertos/FreeRTOS.h>
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#include <freertos/semphr.h>
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#include <freertos/task.h>
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// local includes
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#include "esputils.h"
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namespace espcpputils {
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class counting_semaphore
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{
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ESP_DISABLE_COPY_MOVE(counting_semaphore)
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public:
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counting_semaphore(UBaseType_t uxMaxCount, UBaseType_t uxInitialCount) :
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handle{xSemaphoreCreateCounting(uxMaxCount, uxInitialCount)}
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{}
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~counting_semaphore() { if (handle) vSemaphoreDelete(handle); }
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TaskHandle_t getMutexHolder() const { return xSemaphoreGetMutexHolder(handle); }
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UBaseType_t getCount() const { return uxSemaphoreGetCount(handle); }
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bool take(TickType_t xTicksToWait) { return xSemaphoreTake(handle, xTicksToWait); }
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bool give() { return xSemaphoreGive(handle); }
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const SemaphoreHandle_t handle;
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};
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} // namespace espcpputils
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