CommandQueue.h

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#ifndef COMMANDQUEUE_H_
#define COMMANDQUEUE_H_
#include <stdint.h>
#include <queue>        /* Required for the queue data structure.*/
#include <mutex>        /* Required for locking critical sections. */
#include <semaphore.h>  /* required for semaphores */
 
namespace SWE4211RPi {
 
struct CommandQueueEntry
{
    uint32_t commandType;
    uint32_t command;
    uint32_t parameter1;
    uint32_t parameter2;
};
 
class CommandQueue {
private:
    std::queue<CommandQueueEntry> commandQueueContents;
    sem_t queueCountSemaphore;
    std::mutex queueMutex;
 
public:
    CommandQueue();
 
    virtual ~CommandQueue();
 
    bool hasItem();
 
    CommandQueueEntry dequeue();
 
    void enqueue(CommandQueueEntry value);
};
 
}
#endif /* COMMANDQUEUE_H_ */