packet.h

Go to the documentation of this file.

 
#ifndef PACKET_H
#define PACKET_H
 
#include <stddef.h>
#include <stdint.h>
 
#include <porter_type.h>

#define PACKET_HEADER_SIZE ((size_t)offsetof(PotrPacket, payload))

typedef struct
{
    int64_t  service_id;      
    int64_t  session_tv_sec;  
    uint32_t session_id;      
    int32_t  session_tv_nsec; 
} PotrPacketSessionHdr;
 
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
 
    extern int    packet_build_nack(PotrPacket *packet,
                                    const PotrPacketSessionHdr *shdr,
                                    uint32_t nack_num);
    extern int    packet_build_ping(PotrPacket *packet,
                                    const PotrPacketSessionHdr *shdr,
                                    uint32_t seq_num,
                                    uint32_t ack_num);
    extern int    packet_build_reject(PotrPacket *packet,
                                      const PotrPacketSessionHdr *shdr,
                                      uint32_t seq_num);
    extern int    packet_build_fin(PotrPacket *packet,
                                   const PotrPacketSessionHdr *shdr);
    extern int    packet_build_packed(PotrPacket *out,
                                      const PotrPacketSessionHdr *shdr,
                                      uint32_t seq_num,
                                      const void *packed_payload,
                                      size_t payload_len);
    extern int    packet_unpack_next(const PotrPacket *container,
                                     size_t *offset,
                                     PotrPacket *elem_out);
    extern int    packet_parse(PotrPacket *packet, const void *buf, size_t buf_len);
    extern size_t packet_wire_size(const PotrPacket *packet);
 
#ifdef __cplusplus
}
#endif /* __cplusplus */
 
#endif /* PACKET_H */