You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
45 lines
1.4 KiB
45 lines
1.4 KiB
5 years ago
|
#ifndef MESSAGE_H_
|
||
|
|
#define MESSAGE_H_
|
||
|
|
|
||
|
|
#include <stdbool.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
#define MAX_MESSAGE_LENGTH 277
|
||
|
|
|
||
|
|
// Message structure
|
||
|
|
typedef struct message_t message_t;
|
||
|
|
// and handle type
|
||
|
|
typedef message_t *message_handle_t;
|
||
|
|
|
||
|
|
typedef void (*observer_func)(void);
|
||
|
|
|
||
|
|
#ifdef TEST //This is a test build
|
||
|
|
// Makes private functions reachable by the tester
|
||
|
|
#define unit_static
|
||
|
|
// Calls all observer functions attached to this message.
|
||
|
|
unit_static void message_state_changed(message_handle_t message_handle);
|
||
|
|
#else
|
||
|
|
#define unit_static static
|
||
|
|
#endif
|
||
|
|
|
||
|
|
// Initializes a message structure and returns the message handle. User must provide the length of
|
||
|
|
// the message without the null termination character (strlen);
|
||
|
|
message_handle_t message_init(const char *message, int message_length, uint16_t received_from);
|
||
|
|
|
||
|
|
// Frees a message structure.
|
||
|
|
void message_free(message_handle_t message_handle);
|
||
|
|
|
||
|
|
// Adds an new receiver to the message.
|
||
|
|
void message_add_sent_to(message_handle_t message_handle, uint16_t sent_to);
|
||
|
|
|
||
|
|
// Returns the message.
|
||
|
|
char *message_get(message_handle_t message_handle, int *message_length);
|
||
|
|
|
||
|
|
// Returns true if the message has been previously sent to this node, false otherwise.
|
||
|
|
bool message_sent_to(message_handle_t message_handle, uint16_t node);
|
||
|
|
|
||
|
|
// Attaches an observer function to the message.
|
||
|
|
void message_attach_observer(message_handle_t message_handle, observer_func observer);
|
||
|
|
|
||
|
|
#endif //MESSAGE_H_
|