/**
 * @file queue.h
 * @brief Message queue for inter-task communication
 */

#ifndef QUEUE_H
#define QUEUE_H

#include "kernel.h"

/* Queue Control Block */
typedef struct {
    void* buffer;
    uint32_t item_size;
    uint32_t max_items;
    uint32_t current_items;
    uint32_t head;
    uint32_t tail;
    TaskHandle_t* waiting_senders;
    TaskHandle_t* waiting_receivers;
    uint32_t waiting_sender_count;
    uint32_t waiting_receiver_count;
} Queue_t;

/* Queue Functions */
KernelStatus_t queue_create(Queue_t* queue, void* buffer, uint32_t item_size,
                           uint32_t max_items);
KernelStatus_t queue_send(Queue_t* queue, const void* item, TimeOut_t timeout);
KernelStatus_t queue_receive(Queue_t* queue, void* item, TimeOut_t timeout);
KernelStatus_t queue_send_from_isr(Queue_t* queue, const void* item);
KernelStatus_t queue_receive_from_isr(Queue_t* queue, void* item);
uint32_t queue_get_count(Queue_t* queue);
KernelStatus_t queue_delete(Queue_t* queue);

#endif /* QUEUE_H */