transport.h File Reference

Transport layer include file. More...

#include <inttypes.h>
#include "net/network.h"

Go to the source code of this file.

Enumerations
enum	tsp_service_e {   S_DGRAM = 0, S_REPEATED, S_ACKED, S_REQUEST,   S_INVALID = 0xff }
	Transport layer service types. More...
Functions
void	tsp_check_timeout (void)
	Check transport layer timeouts.
void	tsp_process (void)
	Process waiting packets and schedule them for transmission.
int8_t	tsp_requ (net_buf_t *buf, net_addr_t *dest, enum tsp_service_e service)
	Send a packet using a transport layer sevice.
uint8_t	tsp_clear_to_send (void)
	Returns a nonzero value if a new packet could be passed to the transport layer.
void	tsp_set_segment_size (uint8_t size)
	Set size of segment.
uint8_t	tsp_get_segment_size (void)
	Get segment size.
void	tsp_set_group_size (uint8_t group, uint8_t size)
	Set size of a group.
uint8_t	tsp_get_group_size (uint8_t group)
	Get size of a group.

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Detailed Description

Transport layer include file.

Constants and definitions of the transport layer.

Definition in file transport.h.

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Enumeration Type Documentation

enum tsp_service_e

Transport layer service types. Enumeration values: S_DGRAM  Unacknowledged (not repeated) service. S_REPEATED  Unacknowledged repeated service. S_ACKED  Acknowledged service. S_REQUEST  Session service. S_INVALID  No service. tsp_requ() will fail. Definition at line 36 of file transport.h. Referenced by app_process().

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Function Documentation

void tsp_check_timeout (  void   )

Check transport layer timeouts. This function must be called at a fixed rate from the main loop. Attention: It cannot be called from a timer interrupt because it is not thread save! Definition at line 451 of file transport.c. References NAF_GROUP, and tsp_con_fin().

uint8_t tsp_get_group_size (  uint8_t  group  )

Get size of a group. Parameters: group  Group number. [0..TSP_MAX_GROUPS-1] Returns: Size of group. Definition at line 597 of file transport.c.

uint8_t tsp_get_segment_size (  void   )

Get segment size. Returns: Current segment size. Definition at line 575 of file transport.c.

void tsp_process (  void   )

Process waiting packets and schedule them for transmission. This function should be called from your main loop. Attention: Must not be called from a interrupt routine. The implementation is not thread-save. Todo: Remove dirty hack ensuring that buffer of sesion reply gets released. Definition at line 398 of file transport.c. References net_clear_to_send(), net_requ(), and NPDU_SINGLE.

int8_t tsp_requ (  net_buf_t *  buf, net_addr_t *  dest, enum tsp_service_e  service )

Send a packet using a transport layer sevice. This function does return without waiting for the packet to be transmitted. Check the return value if the packet was scheduled for transmission. Parameters: buf  Network buffer containing the packet data. dest  Destination network address. service  Transport layer service used for transmission. Returns: Returns -1 for a invalid request, 0 if the request could not be processed currently or 1 if successfull. Definition at line 492 of file transport.c. References AT_LOGIC, NPDU_SESSION, NPDU_SINGLE, NPDU_TRANSACTION, S_ACKED, S_DGRAM, S_REPEATED, and S_REQUEST. Referenced by app_process().

void tsp_set_group_size (  uint8_t  group, uint8_t  size )

Set size of a group. Parameters: group  Group number of group which size is about to be set. [0..TSP_MAX_GROUPS-1] size  The new group size. Definition at line 586 of file transport.c.

void tsp_set_segment_size (  uint8_t  size  )

Set size of segment. Parameters: size  New segment size. Definition at line 565 of file transport.c.

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