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/*
* Copyright (c) 2016 Cesanta Software Limited
* All rights reserved
*/
#ifndef CS_MONGOOSE_SRC_SNTP_H_
#define CS_MONGOOSE_SRC_SNTP_H_
#if MG_ENABLE_SNTP
#define MG_SNTP_EVENT_BASE 500
/*
* Received reply from time server. Event handler parameter contains
* pointer to mg_sntp_message structure
*/
#define MG_SNTP_REPLY (MG_SNTP_EVENT_BASE + 1)
/* Received malformed SNTP packet */
#define MG_SNTP_MALFORMED_REPLY (MG_SNTP_EVENT_BASE + 2)
/* Failed to get time from server (timeout etc) */
#define MG_SNTP_FAILED (MG_SNTP_EVENT_BASE + 3)
struct mg_sntp_message {
/* if server sends this flags, user should not send requests to it */
int kiss_of_death;
/* usual mg_time */
double time;
};
/* Establishes connection to given sntp server */
struct mg_connection *mg_sntp_connect(struct mg_mgr *mgr,
MG_CB(mg_event_handler_t event_handler,
void *user_data),
const char *sntp_server_name);
/* Sends time request to given connection */
void mg_sntp_send_request(struct mg_connection *c);
/*
* Helper function
* Establishes connection to time server, tries to send request
* repeats sending SNTP_ATTEMPTS times every SNTP_TIMEOUT sec
* (if needed)
* See sntp_client example
*/
struct mg_connection *mg_sntp_get_time(struct mg_mgr *mgr,
mg_event_handler_t event_handler,
const char *sntp_server_name);
#endif
#endif /* CS_MONGOOSE_SRC_SNTP_H_ */