sternum_transmission_callbacks.h File Reference

Defines the SDK's transmission callbacks available for user implementation. More...

#include <stddef.h>

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Data structures
struct	sternum_transmission_callbacks_t

Typedefs
typedef void(*	sternum_transmission_started_callback_t) (void)
typedef void(*	sternum_transmission_finished_callback_t) (size_t packets_count, size_t bytes_count)
typedef void(*	sternum_packets_lost_callback_t) (size_t packets_count, size_t bytes_count)
typedef void(*	sternum_error_callback_t) (int error_code, const char *error_message)

Detailed Description

Defines the SDK's transmission callbacks available for user implementation.

Typedef Documentation

sternum_error_callback_t

typedef void(* sternum_error_callback_t) (int error_code, const char *error_message)

Typedef for the error callback function. This function will be implemented by the user and registered with the SDK. It will be invoked when an error occurs during the transmission process.

Parameters

error_code	STERNUM_CODE_FILE_CACHE_ACCESS_FAILURE 100 STERNUM_CODE_FILE_CACHE_RECOVERY_CLEAR 101
error_message	A null-terminated string containing a description of the error.

Note

It is not allowed to call Sternum SDK API functions from this callback.

sternum_packets_lost_callback_t

typedef void(* sternum_packets_lost_callback_t) (size_t packets_count, size_t bytes_count)

Typedef for the packets lost callback function. This function will be implemented by the user and registered with the SDK.

Packets are considered lost when they fail to be stored in cache and thus not transmitted, or when the transmission is impossible permanently. Transmission failure itself is not considered packet lost because it will be retried until success.

Parameters

packets_lost_count	The number of packets that were lost.
bytes_count	The number of bytes that were lost.

Note

It is not allowed to call Sternum SDK API functions from this callback.

sternum_transmission_finished_callback_t

typedef void(* sternum_transmission_finished_callback_t) (size_t packets_count, size_t bytes_count)

Typedef for the transmission finished callback function. This function will be implemented by the user and registered with the SDK. It will be invoked after the data transmission finishes.

Parameters

packets_count	The number of packets that were successfully transmitted.
bytes_count	The number of bytes that were successfully transmitted.

Note

It is not allowed to call Sternum SDK API functions from this callback.

sternum_transmission_started_callback_t

typedef void(* sternum_transmission_started_callback_t) (void)

Typedef for the transmission started callback function. This function will be implemented by the user and registered with the SDK. It will be invoked before the data transmission starts.

Note

It is not allowed to call Sternum SDK API functions from this callback.