window.h

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#ifndef WINDOW_H
#define WINDOW_H
 
#include <stdint.h>
 
#include <porter_const.h>
#include <porter_type.h>

typedef struct
{
    PotrPacket *packets;      
    uint8_t    *valid;        
    uint8_t    *payload_pool; 
    uint32_t    base_seq;     
    uint32_t    next_seq;     
    uint16_t    window_size;  
    uint16_t    max_payload;  
    uint32_t    _pad;         
} PotrWindow;
 
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
 
    extern int  window_init(PotrWindow *win, uint32_t initial_seq,
                            uint16_t window_size, uint16_t max_payload);
    extern void window_destroy(PotrWindow *win);
    extern int  window_send_push(PotrWindow *win, const PotrPacket *packet);
    extern int  window_send_full(const PotrWindow *win);
    extern int  window_send_get(const PotrWindow *win, uint32_t seq_num,
                                PotrPacket *packet_out);
    extern int  window_recv_push(PotrWindow *win, const PotrPacket *packet);
    extern int  window_recv_pop(PotrWindow *win, PotrPacket *packet);
    extern int  window_recv_needs_nack(const PotrWindow *win, uint32_t *nack_num);
    extern void window_recv_skip(PotrWindow *win, uint32_t seq_num);
    extern void window_recv_reset(PotrWindow *win, uint32_t new_base_seq);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* WINDOW_H */