#include <stdint.h>

#ifndef _EOS_MSGQ_H_
#define _EOS_MSGQ_H_

#define EOS_MSG_FLAG_WAKE       0x01
#define EOS_MSG_FLAG_RPLY_REQ   0x02
#define EOS_MSG_FLAG_RPLY_REP   0x04

typedef struct EOSMessage {
    unsigned char *buffer;
    uint16_t size;
    uint8_t flags;
} EOSMessage;

void eos_msg_init(EOSMessage *msg, unsigned char *buffer, uint16_t size);
void eos_msg_set_flags(EOSMessage *msg, uint8_t flags);
void eos_msg_clear_flags(EOSMessage *msg, uint8_t flags);
uint8_t eos_msg_flags(EOSMessage *msg);

typedef struct EOSMsgItem {
    unsigned char type;
    unsigned char *buffer;
    uint16_t size;
    uint16_t len;
} EOSMsgItem;

typedef struct EOSMsgQ {
    uint8_t idx_r;
    uint8_t idx_w;
    uint8_t size;
    EOSMsgItem *array;
} EOSMsgQ;

void eos_msgq_init(EOSMsgQ *msgq, EOSMsgItem *array, uint8_t size);
uint8_t eos_msgq_len(EOSMsgQ *msgq);
int eos_msgq_push(EOSMsgQ *msgq, unsigned char type, EOSMessage *msg, uint16_t len);
void eos_msgq_pop(EOSMsgQ *msgq, unsigned char *type, EOSMessage *msg, uint16_t *len);

typedef struct EOSBufQ {
    uint8_t idx_r;
    uint8_t idx_w;
    uint8_t size;
    unsigned char **array;
} EOSBufQ;

void eos_bufq_init(EOSBufQ *bufq, unsigned char **array, uint8_t size);
uint8_t eos_bufq_len(EOSBufQ *bufq);
int eos_bufq_push(EOSBufQ *bufq, unsigned char *buffer);
unsigned char *eos_bufq_pop(EOSBufQ *bufq);

#endif  /* _EOS_MSGQ_H_ */