56 lines
1.8 KiB
C++
56 lines
1.8 KiB
C++
#ifndef FRAMEWORK_CONTAINER_SHAREDRINGBUFFER_H_
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#define FRAMEWORK_CONTAINER_SHAREDRINGBUFFER_H_
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#include <framework/container/SimpleRingBuffer.h>
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#include <framework/ipc/MutexIF.h>
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#include <framework/objectmanager/SystemObject.h>
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#include <framework/timemanager/Clock.h>
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class SharedRingBuffer: public SystemObject,
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public SimpleRingBuffer {
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public:
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/**
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* This constructor allocates a new internal buffer with the supplied size.
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* @param size
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* @param overwriteOld
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* If the ring buffer is overflowing at a write operartion, the oldest data
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* will be overwritten.
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*/
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SharedRingBuffer(object_id_t objectId, const size_t size,
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bool overwriteOld, dur_millis_t mutexTimeout = 10);
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/**
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* This constructor takes an external buffer with the specified size.
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* @param buffer
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* @param size
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* @param overwriteOld
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* If the ring buffer is overflowing at a write operartion, the oldest data
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* will be overwritten.
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*/
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SharedRingBuffer(object_id_t objectId, uint8_t* buffer, const size_t size,
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bool overwriteOld, dur_millis_t mutexTimeout = 10);
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void setMutexTimeout(dur_millis_t newTimeout);
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/** Performs mutex protected SimpleRingBuffer::writeData call */
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ReturnValue_t writeDataProtected(const uint8_t* data, size_t amount);
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/** Performs mutex protected SimpleRingBuffer::readData call */
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ReturnValue_t readDataProtected(uint8_t *data, size_t amount,
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bool incrementReadPtr = false,
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bool readRemaining = false, size_t *trueAmount = nullptr);
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/** Performs mutex protected SimpleRingBuffer::deleteData call */
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ReturnValue_t deleteDataProtected(size_t amount,
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bool deleteRemaining = false, size_t* trueAmount = nullptr);
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size_t getAvailableReadDataProtected (uint8_t n = 0) const;
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private:
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dur_millis_t mutexTimeout;
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MutexIF* mutex = nullptr;
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};
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#endif /* FRAMEWORK_CONTAINER_SHAREDRINGBUFFER_H_ */
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