sntp.h

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/*
 * Copyright (c) 2017 Linaro Limited
 * Copyright (c) 2019 Intel Corporation
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef ZEPHYR_INCLUDE_NET_SNTP_H_
#define ZEPHYR_INCLUDE_NET_SNTP_H_
 
#include <zephyr/net/socket.h>
#include <zephyr/net/socket_service.h>
 
#ifdef __cplusplus
extern "C" {
#endif


struct sntp_time {
        uint64_t seconds;
        uint32_t fraction;
        uint32_t rsp_delay_us;
#if defined(CONFIG_SNTP_UNCERTAINTY)
        uint64_t uptime_us;
        uint32_t uncertainty_us;
#endif
};

struct sntp_ctx {

        struct {
                struct zsock_pollfd fds[1];
                int nfds;
                int fd;
        } sock;

        struct sntp_time expected_orig_ts;
};

int sntp_init(struct sntp_ctx *ctx, struct net_sockaddr *addr,
              net_socklen_t addr_len);

int sntp_query(struct sntp_ctx *ctx, uint32_t timeout, struct sntp_time *ts);

int sntp_recv_response(struct sntp_ctx *ctx, uint32_t timeout, struct sntp_time *ts);

void sntp_close(struct sntp_ctx *ctx);

int sntp_init_async(struct sntp_ctx *ctx, struct net_sockaddr *addr, net_socklen_t addr_len,
                    const struct net_socket_service_desc *service);

int sntp_send_async(struct sntp_ctx *ctx);

int sntp_read_async(struct net_socket_service_event *event, struct sntp_time *ts);

void sntp_close_async(const struct net_socket_service_desc *service);

int sntp_simple(const char *server, uint32_t timeout,
                struct sntp_time *ts);

int sntp_simple_addr(struct net_sockaddr *addr, net_socklen_t addr_len, uint32_t timeout,
                     struct sntp_time *ts);
 
#ifdef __cplusplus
}
#endif

 
#endif