NSDL C library

Dependents:   NSDL_HelloWorld_WiFi UbloxModemNanoServiceClient IOT-NSDL_HelloWorld LWM2M_NanoService_Ethernet ... more

Fork of nsdl_lib by Tero Heinonen

Note that use of this software requires acceptance of the Sensinode EULA: http://mbed.org/teams/Sensinode/code/nsdl_lib/wiki/EULA

Revision:
5:da1db64e7fb9
Parent:
0:58c4f13c4b9a
Child:
6:1caf76131c9a
--- a/sn_coap_protocol.h	Wed Oct 09 09:20:29 2013 +0000
+++ b/sn_coap_protocol.h	Mon Oct 14 11:00:30 2013 +0000
@@ -15,76 +15,67 @@
 #ifndef SN_COAP_PROTOCOL_H_
 #define SN_COAP_PROTOCOL_H_
 
-/* * * * * * * * * * * */
-/* * * * DEFINES * * * */
-/* * * * * * * * * * * */
-
-/* Maximum time in seconds of messages to be stored for Acknowledging. This time tells */
-/* how long time User of CoAP C-library have time to send Piggy-backed acknowledgement */
-/* message to Request sender. */
-#define SN_COAP_ACK_INFO_MAX_TIME_MSGS_STORED    	20
-#define SN_COAP_ACK_INFO_MAX_COUNT_MESSAGES_SAVED   10
-
-/* * For Message resending * */
-
-/* Init value for maximum count of ongoing active resending messages 										*/
-/* This value depends on available memory: If there is restricted count of memory, use little value e.g. 1 	*/
-/* Setting of this value to 0 will disable re-sending and also reduce use of ROM memory						*/
-#define SN_COAP_RESENDING_MAX_COUNT		            0
-/* Default value for re-sending buffer size */
-#define SN_COAP_RESENDING_BUFFER_MAX_SIZE           0
-
-/* These parameters sets maximum values application can set with API */
-/* Maximum allowed count of re-sending */
-#define SN_COAP_MAX_ALLOWED_RESENDING_COUNT 		6
-/* Maximum allowed number of saved re-sending messages */
-#define SN_COAP_MAX_ALLOWED_RESENDING_BUFF_SIZE 	6
-
-/* * For Message duplication detecting * */
-
-/* Init value for the maximum count of messages to be stored for duplication detection 			*/
-/* Setting of this value to 0 will disable duplication check, also reduce use of ROM memory	 	*/
-#define SN_COAP_DUPLICATION_MAX_MSGS_COUNT          	0
-/* Maximum allowed number of saved messages for duplicate searching */
-#define SN_COAP_MAX_ALLOWED_DUPLICATION_MESSAGE_COUNT 	6
-
-/* Maximum time in seconds of messages to be stored for duplication detection */
-#define SN_COAP_DUPLICATION_MAX_TIME_MSGS_STORED    60 /* RESPONSE_TIMEOUT * RESPONSE_RANDOM_FACTOR * (2 ^ MAX_RETRANSMIT - 1) + the expected maximum round trip time */
-
-/* * For Message blockwising * */
-
-/* Init value for the maximum payload size to be sent and received at one blockwise message 						*/
-/* Setting of this value to 0 will disable this feature, and also reduce use of ROM memory							*/
-/* Note: Current Coap implementation supports Blockwise transfers specification version draft-ietf-core-block-03 	*/
-/* Note: This define is common for both received and sent Blockwise messages 										*/
-#ifndef SN_COAP_BLOCKWISE_MAX_PAYLOAD_SIZE
-#define SN_COAP_BLOCKWISE_MAX_PAYLOAD_SIZE 			0 /* Must be 2^x and x is at least 4. Suitable values: 0, 16, 32, 64, 128, 256, 512 and 1024 */
-#endif
-
-
-/* Maximum time in seconds of data (messages and payload) to be stored for blockwising */
-#ifndef SN_COAP_BLOCKWISE_MAX_TIME_DATA_STORED
-#define SN_COAP_BLOCKWISE_MAX_TIME_DATA_STORED      10
-#endif
-
 
 /* * * * * * * * * * * * * * * * * * * * * * */
 /* * * * EXTERNAL FUNCTION PROTOTYPES  * * * */
 /* * * * * * * * * * * * * * * * * * * * * * */
 
+/**
+ * \brief This function sets the memory allocation and deallocation functions and used TX callback function pointer the library will use, and must be called first.
+ */
 extern int8_t 			   sn_coap_protocol_init(void* (*used_malloc_func_ptr)(uint16_t), void (*used_free_func_ptr)(void*),
 										uint8_t (*used_tx_callback_ptr)(sn_nsdl_capab_e , uint8_t *, uint16_t, sn_nsdl_addr_s *));
+
+/**
+ * \brief Frees all allocated memory in libCoap protocol part.
+ */
 extern int8_t 			   sn_coap_protocol_destroy(void);
+
+/**
+ * \brief Use to build an outgoing message buffer from a CoAP header structure.
+ */
 extern int16_t             sn_coap_protocol_build(sn_nsdl_addr_s *dst_addr_ptr, uint8_t *dst_packet_data_ptr, sn_coap_hdr_s *src_coap_msg_ptr);
+
+/**
+ * \brief Use to parse an incoming message buffer to a CoAP header structure.
+ */
 extern sn_coap_hdr_s      *sn_coap_protocol_parse(sn_nsdl_addr_s *src_addr_ptr, uint16_t packet_data_len, uint8_t *packet_data_ptr);
+
+/**
+ * \brief Called periodically to allow the protocol to update retransmission timers and destroy unneeded data.
+ */
 extern int8_t 			   sn_coap_protocol_exec(uint32_t current_time);
+
+/**
+ * \brief If block transfer is enabled, this function changes the block size.
+ */
 extern int8_t 			   sn_coap_protocol_set_block_size(uint16_t block_size);
+
+/**
+ * \brief If dublicate message detection is enabled, this function changes buffer size.
+ */
 extern int8_t 			   sn_coap_protocol_set_duplicate_buffer_size(uint8_t message_count);
+
+/**
+ * \brief If re-transmissions are enabled, this function changes resending count and buffer size.
+ */
 extern int8_t 			   sn_coap_protocol_set_retransmission(uint8_t resending_count, uint8_t buffer_size);
 
-/* NSP registration functions */
+/* NSP manual registration functions */
+
+/**
+ * \brief Create an NSP registration message.
+ */
 extern int8_t 			   sn_coap_register(sn_coap_hdr_s *coap_hdr_ptr, registration_info_t *endpoint_info_ptr);
+
+/**
+ * \brief Create an NSP update message.
+ */
 extern int8_t 			   sn_coap_register_update(sn_coap_hdr_s *coap_hdr_ptr, uint8_t *location, uint8_t length);
+
+/**
+ * \brief Create an NSP de-registration message.
+ */
 extern int8_t 			   sn_coap_deregister(sn_coap_hdr_s *coap_hdr_ptr, uint8_t *location, uint8_t length);
 
 #endif /* SN_COAP_PROTOCOL_H_ */