| 1,5 → 1,5 |
|---|
| /* |
| * Copyright (c) 2008 Lukas Mejdrech |
| * Copyright (c) 2009 Lukas Mejdrech |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| 26,11 → 26,12 |
|---|
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup net |
| /** @addtogroup packet |
| * @{ |
| */ |
| |
| /** @file |
| * Packet header. |
| */ |
| |
| #ifndef __NET_PACKET_HEADER_H__ |
| 40,27 → 41,73 |
|---|
| |
| #include "packet.h" |
| |
| /** Packet integrity check magic value. |
| */ |
| #define PACKET_MAGIC_VALUE 0x11227788 |
| |
| /** Packet header. |
| */ |
| struct packet{ |
| /** Packet identifier. |
| */ |
| packet_id_t packet_id; |
| //TODO packet owner not used |
| /** Packet owner. |
| */ |
| services_t owner; |
| //TODO needed packet mode? |
| /** Packet mode. |
| */ |
| packet_mode_t mode; |
| /** Packet queue sorting value. |
| * The packet queue is sorted the ascending order. |
| */ |
| int order; |
| /** Packet metric. |
| */ |
| size_t metric; |
| /** Previous packet in the queue. |
| */ |
| packet_id_t previous; |
| /** Next packet in the queue. |
| */ |
| packet_id_t next; |
| /** Total length of the packet. |
| * Contains the header, the addresses and the data of the packet. |
| * Corresponds to the mapped sharable memory block. |
| */ |
| size_t length; |
| /** Source and destination addresses length. |
| */ |
| size_t addr_len; |
| /** Souce address offset in bytes from the beginning of the packet header. |
| */ |
| size_t src_addr; |
| /** Destination address offset in bytes from the beginning of the packet header. |
| */ |
| size_t dest_addr; |
| /** Reserved data prefix length in bytes. |
| */ |
| size_t max_prefix; |
| /** Reserved content length in bytes. |
| */ |
| size_t max_content; |
| /** Actual data start offset in bytes from the beginning of the packet header. |
| */ |
| size_t data_start; |
| /** Actual data end offset in bytes from the beginning of the packet header. |
| */ |
| size_t data_end; |
| /** Integrity check magic value. |
| */ |
| int magic_value; |
| }; |
| |
| /** Returns whether the packet is valid. |
| * @param packet The packet to be checked. Input parameter. |
| * @returns true if the packet is not NULL and the magic value is correct. |
| * @returns false otherwise. |
| */ |
| static inline int packet_is_valid( const packet_t packet ){ |
| return packet && ( packet->magic_value == PACKET_MAGIC_VALUE ); |
| } |