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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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/** @addtogroup net
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/** @addtogroup net
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 * @{
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 *  @{
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 */
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 */
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/** @file
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/** @file
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 */
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 */
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#ifndef __NET_PACKET_H__
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#ifndef __NET_PACKET_H__
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#define __NET_PACKET_H__
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#define __NET_PACKET_H__
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#define PACKET_PREPEND( packet, type )      ( type * ) packet_prepend(( packet ), sizeof( type ))
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#define PACKET_APPEND( packet, type )       ( type * ) packet_append(( packet ), sizeof( type ))
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typedef unsigned int    packet_id_t;
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#define PACKET_TRIM( packet, prefix, sufix )    packet_trim(( packet ), sizeof( prefix ), sizeof( sufix ))
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typedef struct packet * packet_t;
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typedef struct packet * packet_t;
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typedef packet_t *  packet_ref;
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typedef packet_t *  packet_ref;
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packet_t    packet_create( size_t max_prefix, size_t max_content, size_t max_sufix );
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void *      packet_prepend( packet_t packet, size_t length );
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typedef enum packet_mode    packet_mode_t;
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void *      packet_append( packet_t packet, size_t length );
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enum    packet_mode{
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    PM_ONEWAY,
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    PM_RETURN
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};
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packet_t    packet_copy( packet_t packet );
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packet_t pm_find( packet_id_t packet_id );
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int     packet_copy_data( packet_t packet, void * data, size_t length );
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int pm_add( packet_t packet );
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// TODO protocol identification?
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int pm_init( void );
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int     packet_send( packet_t packet, int phone );
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int     packet_receive( packet_ref packet );
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void pm_destroy( void );
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int     packet_trim( packet_t packet, size_t prefix, size_t sufix );
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packet_t    pq_add( packet_t first, packet_t packet, int order, size_t metric );
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int     packet_destroy( packet_t packet );
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packet_t pq_detach( packet_t packet );
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size_t      packet_get_data_length( packet_t packet );
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int pq_set( packet_t packet, int order, size_t metric );
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void *      packet_get_data( packet_t packet );
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void    pq_destroy( packet_t first, void ( * packet_release )( packet_t packet ));
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */