Atsushi Hattori / Mbed 2 deprecated 20210627_Logger

hattori&ide

Dependencies:   mbed

ntp/NTPClient.cpp@0:f77369cabd75, 18 months ago (annotated)

Committer:
hattori_atsushi
Date:
Sun Dec 18 08:16:01 2022 +0000
Revision:
0:f77369cabd75
hattori

Who changed what in which revision?

UserRevisionLine numberNew contents of line
hattori_atsushi 0:f77369cabd75 1
hattori_atsushi 0:f77369cabd75 2 /*
hattori_atsushi 0:f77369cabd75 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
hattori_atsushi 0:f77369cabd75 4
hattori_atsushi 0:f77369cabd75 5 Permission is hereby granted, free of charge, to any person obtaining a copy
hattori_atsushi 0:f77369cabd75 6 of this software and associated documentation files (the "Software"), to deal
hattori_atsushi 0:f77369cabd75 7 in the Software without restriction, including without limitation the rights
hattori_atsushi 0:f77369cabd75 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
hattori_atsushi 0:f77369cabd75 9 copies of the Software, and to permit persons to whom the Software is
hattori_atsushi 0:f77369cabd75 10 furnished to do so, subject to the following conditions:
hattori_atsushi 0:f77369cabd75 11
hattori_atsushi 0:f77369cabd75 12 The above copyright notice and this permission notice shall be included in
hattori_atsushi 0:f77369cabd75 13 all copies or substantial portions of the Software.
hattori_atsushi 0:f77369cabd75 14
hattori_atsushi 0:f77369cabd75 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
hattori_atsushi 0:f77369cabd75 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
hattori_atsushi 0:f77369cabd75 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
hattori_atsushi 0:f77369cabd75 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
hattori_atsushi 0:f77369cabd75 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
hattori_atsushi 0:f77369cabd75 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
hattori_atsushi 0:f77369cabd75 21 THE SOFTWARE.
hattori_atsushi 0:f77369cabd75 22 */
hattori_atsushi 0:f77369cabd75 23
hattori_atsushi 0:f77369cabd75 24 #include "NTPClient.h"
hattori_atsushi 0:f77369cabd75 25
hattori_atsushi 0:f77369cabd75 26 #include <stdio.h>
hattori_atsushi 0:f77369cabd75 27
hattori_atsushi 0:f77369cabd75 28 //#define __DEBUG
hattori_atsushi 0:f77369cabd75 29 #include "dbg/dbg.h"
hattori_atsushi 0:f77369cabd75 30
hattori_atsushi 0:f77369cabd75 31 #define NTP_PORT 123
hattori_atsushi 0:f77369cabd75 32 #define NTP_CLIENT_PORT 0//50420 //Random port
hattori_atsushi 0:f77369cabd75 33 #define NTP_REQUEST_TIMEOUT 15000
hattori_atsushi 0:f77369cabd75 34 #define NTP_TIMESTAMP_DELTA 2208988800ull //Diff btw a UNIX timestamp (Starting Jan, 1st 1970) and a NTP timestamp (Starting Jan, 1st 1900)
hattori_atsushi 0:f77369cabd75 35
hattori_atsushi 0:f77369cabd75 36 #define htons( x ) ( (( x << 8 ) & 0xFF00) | (( x >> 8 ) & 0x00FF) )
hattori_atsushi 0:f77369cabd75 37 #define ntohs( x ) (htons(x))
hattori_atsushi 0:f77369cabd75 38
hattori_atsushi 0:f77369cabd75 39 #define htonl( x ) ( (( x << 24 ) & 0xFF000000) \
hattori_atsushi 0:f77369cabd75 40 | (( x << 8 ) & 0x00FF0000) \
hattori_atsushi 0:f77369cabd75 41 | (( x >> 8 ) & 0x0000FF00) \
hattori_atsushi 0:f77369cabd75 42 | (( x >> 24 ) & 0x000000FF) )
hattori_atsushi 0:f77369cabd75 43 #define ntohl( x ) (htonl(x))
hattori_atsushi 0:f77369cabd75 44
hattori_atsushi 0:f77369cabd75 45 NTPClient::NTPClient() : NetService(false), m_state(NTP_PING), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL),
hattori_atsushi 0:f77369cabd75 46 m_watchdog(), m_timeout(0), m_closed(true), m_host(), m_pDnsReq(NULL), m_blockingResult(NTP_PROCESSING)
hattori_atsushi 0:f77369cabd75 47 {
hattori_atsushi 0:f77369cabd75 48 setTimeout(NTP_REQUEST_TIMEOUT);
hattori_atsushi 0:f77369cabd75 49 DBG("\r\nNew NTPClient %p\r\n",this);
hattori_atsushi 0:f77369cabd75 50 }
hattori_atsushi 0:f77369cabd75 51
hattori_atsushi 0:f77369cabd75 52 NTPClient::~NTPClient()
hattori_atsushi 0:f77369cabd75 53 {
hattori_atsushi 0:f77369cabd75 54 close();
hattori_atsushi 0:f77369cabd75 55 }
hattori_atsushi 0:f77369cabd75 56
hattori_atsushi 0:f77369cabd75 57 //High level setup functions
hattori_atsushi 0:f77369cabd75 58 NTPResult NTPClient::setTime(const Host& host) //Blocking
hattori_atsushi 0:f77369cabd75 59 {
hattori_atsushi 0:f77369cabd75 60 doSetTime(host);
hattori_atsushi 0:f77369cabd75 61 return blockingProcess();
hattori_atsushi 0:f77369cabd75 62 }
hattori_atsushi 0:f77369cabd75 63
hattori_atsushi 0:f77369cabd75 64 NTPResult NTPClient::setTime(const Host& host, void (*pMethod)(NTPResult)) //Non blocking
hattori_atsushi 0:f77369cabd75 65 {
hattori_atsushi 0:f77369cabd75 66 setOnResult(pMethod);
hattori_atsushi 0:f77369cabd75 67 doSetTime(host);
hattori_atsushi 0:f77369cabd75 68 return NTP_PROCESSING;
hattori_atsushi 0:f77369cabd75 69 }
hattori_atsushi 0:f77369cabd75 70
hattori_atsushi 0:f77369cabd75 71 #if 0 //For doc only
hattori_atsushi 0:f77369cabd75 72 template<class T>
hattori_atsushi 0:f77369cabd75 73 NTPResult NTPClient::setTime(const Host& host, T* pItem, void (T::*pMethod)(NTPResult)) //Non blocking
hattori_atsushi 0:f77369cabd75 74 {
hattori_atsushi 0:f77369cabd75 75 setOnResult(pItem, pMethod);
hattori_atsushi 0:f77369cabd75 76 doSetTime(host);
hattori_atsushi 0:f77369cabd75 77 return NTP_PROCESSING;
hattori_atsushi 0:f77369cabd75 78 }
hattori_atsushi 0:f77369cabd75 79 #endif
hattori_atsushi 0:f77369cabd75 80
hattori_atsushi 0:f77369cabd75 81 void NTPClient::doSetTime(const Host& host)
hattori_atsushi 0:f77369cabd75 82 {
hattori_atsushi 0:f77369cabd75 83 init();
hattori_atsushi 0:f77369cabd75 84 resetTimeout();
hattori_atsushi 0:f77369cabd75 85 m_host = host;
hattori_atsushi 0:f77369cabd75 86 if(!m_host.getPort())
hattori_atsushi 0:f77369cabd75 87 {
hattori_atsushi 0:f77369cabd75 88 m_host.setPort(NTP_PORT);
hattori_atsushi 0:f77369cabd75 89 }
hattori_atsushi 0:f77369cabd75 90 if(m_host.getIp().isNull())
hattori_atsushi 0:f77369cabd75 91 {
hattori_atsushi 0:f77369cabd75 92 //DNS query required
hattori_atsushi 0:f77369cabd75 93 m_pDnsReq = new DNSRequest();
hattori_atsushi 0:f77369cabd75 94 DBG("\r\nNTPClient : DNSRequest %p\r\n", m_pDnsReq);
hattori_atsushi 0:f77369cabd75 95 m_pDnsReq->setOnReply(this, &NTPClient::onDNSReply);
hattori_atsushi 0:f77369cabd75 96 m_pDnsReq->resolve(&m_host);
hattori_atsushi 0:f77369cabd75 97 return;
hattori_atsushi 0:f77369cabd75 98 }
hattori_atsushi 0:f77369cabd75 99 open();
hattori_atsushi 0:f77369cabd75 100 }
hattori_atsushi 0:f77369cabd75 101
hattori_atsushi 0:f77369cabd75 102 void NTPClient::setOnResult( void (*pMethod)(NTPResult) )
hattori_atsushi 0:f77369cabd75 103 {
hattori_atsushi 0:f77369cabd75 104 m_pCb = pMethod;
hattori_atsushi 0:f77369cabd75 105 }
hattori_atsushi 0:f77369cabd75 106
hattori_atsushi 0:f77369cabd75 107 void NTPClient::close()
hattori_atsushi 0:f77369cabd75 108 {
hattori_atsushi 0:f77369cabd75 109 if(m_closed)
hattori_atsushi 0:f77369cabd75 110 return;
hattori_atsushi 0:f77369cabd75 111 m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else
hattori_atsushi 0:f77369cabd75 112 m_watchdog.stop();
hattori_atsushi 0:f77369cabd75 113 m_pUDPSocket->resetOnEvent();
hattori_atsushi 0:f77369cabd75 114 m_pUDPSocket->close();
hattori_atsushi 0:f77369cabd75 115 delete m_pUDPSocket;
hattori_atsushi 0:f77369cabd75 116 if( m_pDnsReq )
hattori_atsushi 0:f77369cabd75 117 {
hattori_atsushi 0:f77369cabd75 118 m_pDnsReq->close();
hattori_atsushi 0:f77369cabd75 119 delete m_pDnsReq;
hattori_atsushi 0:f77369cabd75 120 m_pDnsReq = NULL;
hattori_atsushi 0:f77369cabd75 121 }
hattori_atsushi 0:f77369cabd75 122 }
hattori_atsushi 0:f77369cabd75 123
hattori_atsushi 0:f77369cabd75 124 void NTPClient::poll() //Called by NetServices
hattori_atsushi 0:f77369cabd75 125 {
hattori_atsushi 0:f77369cabd75 126 if( (!m_closed) && (m_watchdog.read_ms() >= m_timeout) )
hattori_atsushi 0:f77369cabd75 127 {
hattori_atsushi 0:f77369cabd75 128 onTimeout();
hattori_atsushi 0:f77369cabd75 129 }
hattori_atsushi 0:f77369cabd75 130 }
hattori_atsushi 0:f77369cabd75 131
hattori_atsushi 0:f77369cabd75 132 void NTPClient::init() //Create and setup socket if needed
hattori_atsushi 0:f77369cabd75 133 {
hattori_atsushi 0:f77369cabd75 134 if(!m_closed) //Already opened
hattori_atsushi 0:f77369cabd75 135 return;
hattori_atsushi 0:f77369cabd75 136 m_state = NTP_PING;
hattori_atsushi 0:f77369cabd75 137 m_pUDPSocket = new UDPSocket;
hattori_atsushi 0:f77369cabd75 138 m_pUDPSocket->setOnEvent(this, &NTPClient::onUDPSocketEvent);
hattori_atsushi 0:f77369cabd75 139 m_closed = false;
hattori_atsushi 0:f77369cabd75 140 DBG("NTPClient: Init OK\n");
hattori_atsushi 0:f77369cabd75 141 }
hattori_atsushi 0:f77369cabd75 142
hattori_atsushi 0:f77369cabd75 143 void NTPClient::open()
hattori_atsushi 0:f77369cabd75 144 {
hattori_atsushi 0:f77369cabd75 145 resetTimeout();
hattori_atsushi 0:f77369cabd75 146 DBG("Opening connection\n");
hattori_atsushi 0:f77369cabd75 147 m_state = NTP_PING;
hattori_atsushi 0:f77369cabd75 148 Host localhost(IpAddr(), NTP_CLIENT_PORT, "localhost"); //Any local address
hattori_atsushi 0:f77369cabd75 149 m_pUDPSocket->bind(localhost);
hattori_atsushi 0:f77369cabd75 150 set_time( 1280000000 ); //End of July 2010... just there to limit offset range
hattori_atsushi 0:f77369cabd75 151 process();
hattori_atsushi 0:f77369cabd75 152 }
hattori_atsushi 0:f77369cabd75 153
hattori_atsushi 0:f77369cabd75 154 #define MIN(a,b) ((a)<(b))?(a):(b)
hattori_atsushi 0:f77369cabd75 155 void NTPClient::process() //Main state-machine
hattori_atsushi 0:f77369cabd75 156 {
hattori_atsushi 0:f77369cabd75 157 int len;
hattori_atsushi 0:f77369cabd75 158 Host host;
hattori_atsushi 0:f77369cabd75 159
hattori_atsushi 0:f77369cabd75 160 switch(m_state)
hattori_atsushi 0:f77369cabd75 161 {
hattori_atsushi 0:f77369cabd75 162 case NTP_PING:
hattori_atsushi 0:f77369cabd75 163 DBG("\r\nPing\r\n");
hattori_atsushi 0:f77369cabd75 164 //Prepare NTP Packet:
hattori_atsushi 0:f77369cabd75 165 m_pkt.li = 0; //Leap Indicator : No warning
hattori_atsushi 0:f77369cabd75 166 m_pkt.vn = 4; //Version Number : 4
hattori_atsushi 0:f77369cabd75 167 m_pkt.mode = 3; //Client mode
hattori_atsushi 0:f77369cabd75 168 m_pkt.stratum = 0; //Not relevant here
hattori_atsushi 0:f77369cabd75 169 m_pkt.poll = 0; //Not significant as well
hattori_atsushi 0:f77369cabd75 170 m_pkt.precision = 0; //Neither this one is
hattori_atsushi 0:f77369cabd75 171
hattori_atsushi 0:f77369cabd75 172 m_pkt.rootDelay = 0; //Or this one
hattori_atsushi 0:f77369cabd75 173 m_pkt.rootDispersion = 0; //Or that one
hattori_atsushi 0:f77369cabd75 174 m_pkt.refId = 0; //...
hattori_atsushi 0:f77369cabd75 175
hattori_atsushi 0:f77369cabd75 176 m_pkt.refTm_s = 0;
hattori_atsushi 0:f77369cabd75 177 m_pkt.origTm_s = 0;
hattori_atsushi 0:f77369cabd75 178 m_pkt.rxTm_s = 0;
hattori_atsushi 0:f77369cabd75 179 m_pkt.txTm_s = htonl( NTP_TIMESTAMP_DELTA + time(NULL) ); //WARN: We are in LE format, network byte order is BE
hattori_atsushi 0:f77369cabd75 180
hattori_atsushi 0:f77369cabd75 181 m_pkt.refTm_f = m_pkt.origTm_f = m_pkt.rxTm_f = m_pkt.txTm_f = 0;
hattori_atsushi 0:f77369cabd75 182
hattori_atsushi 0:f77369cabd75 183 #ifdef __DEBUG
hattori_atsushi 0:f77369cabd75 184 //Hex Dump:
hattori_atsushi 0:f77369cabd75 185 DBG("\r\nDump Tx:\r\n");
hattori_atsushi 0:f77369cabd75 186 for(int i = 0; i< sizeof(NTPPacket); i++)
hattori_atsushi 0:f77369cabd75 187 {
hattori_atsushi 0:f77369cabd75 188 DBG("%02x ", *((char*)&m_pkt + i));
hattori_atsushi 0:f77369cabd75 189 }
hattori_atsushi 0:f77369cabd75 190 DBG("\r\n\r\n");
hattori_atsushi 0:f77369cabd75 191 #endif
hattori_atsushi 0:f77369cabd75 192
hattori_atsushi 0:f77369cabd75 193 len = m_pUDPSocket->sendto( (char*)&m_pkt, sizeof(NTPPacket), &m_host );
hattori_atsushi 0:f77369cabd75 194 if(len < sizeof(NTPPacket))
hattori_atsushi 0:f77369cabd75 195 { onResult(NTP_PRTCL); close(); return; }
hattori_atsushi 0:f77369cabd75 196
hattori_atsushi 0:f77369cabd75 197 m_state = NTP_PONG;
hattori_atsushi 0:f77369cabd75 198
hattori_atsushi 0:f77369cabd75 199 break;
hattori_atsushi 0:f77369cabd75 200
hattori_atsushi 0:f77369cabd75 201 case NTP_PONG:
hattori_atsushi 0:f77369cabd75 202 DBG("\r\nPong\r\n");
hattori_atsushi 0:f77369cabd75 203 while( len = m_pUDPSocket->recvfrom( (char*)&m_pkt, sizeof(NTPPacket), &host ) )
hattori_atsushi 0:f77369cabd75 204 {
hattori_atsushi 0:f77369cabd75 205 if( len <= 0 )
hattori_atsushi 0:f77369cabd75 206 break;
hattori_atsushi 0:f77369cabd75 207 if( !host.getIp().isEq(m_host.getIp()) )
hattori_atsushi 0:f77369cabd75 208 continue; //Not our packet
hattori_atsushi 0:f77369cabd75 209 if( len > 0 )
hattori_atsushi 0:f77369cabd75 210 break;
hattori_atsushi 0:f77369cabd75 211 }
hattori_atsushi 0:f77369cabd75 212
hattori_atsushi 0:f77369cabd75 213 if(len == 0)
hattori_atsushi 0:f77369cabd75 214 return; //Wait for the next packet
hattori_atsushi 0:f77369cabd75 215
hattori_atsushi 0:f77369cabd75 216 if(len < 0)
hattori_atsushi 0:f77369cabd75 217 { onResult(NTP_PRTCL); close(); return; }
hattori_atsushi 0:f77369cabd75 218
hattori_atsushi 0:f77369cabd75 219 if(len < sizeof(NTPPacket)) //TODO: Accept chunks
hattori_atsushi 0:f77369cabd75 220 { onResult(NTP_PRTCL); close(); return; }
hattori_atsushi 0:f77369cabd75 221
hattori_atsushi 0:f77369cabd75 222 #ifdef __DEBUG
hattori_atsushi 0:f77369cabd75 223 //Hex Dump:
hattori_atsushi 0:f77369cabd75 224 DBG("\r\nDump Rx:\r\n");
hattori_atsushi 0:f77369cabd75 225 for(int i = 0; i< sizeof(NTPPacket); i++)
hattori_atsushi 0:f77369cabd75 226 {
hattori_atsushi 0:f77369cabd75 227 DBG("%02x ", *((char*)&m_pkt + i));
hattori_atsushi 0:f77369cabd75 228 }
hattori_atsushi 0:f77369cabd75 229 DBG("\r\n\r\n");
hattori_atsushi 0:f77369cabd75 230 #endif
hattori_atsushi 0:f77369cabd75 231
hattori_atsushi 0:f77369cabd75 232 if( m_pkt.stratum == 0) //Kiss of death message : Not good !
hattori_atsushi 0:f77369cabd75 233 {
hattori_atsushi 0:f77369cabd75 234 onResult(NTP_PRTCL); close(); return;
hattori_atsushi 0:f77369cabd75 235 }
hattori_atsushi 0:f77369cabd75 236
hattori_atsushi 0:f77369cabd75 237 //Correct Endianness
hattori_atsushi 0:f77369cabd75 238 m_pkt.refTm_s = ntohl( m_pkt.refTm_s );
hattori_atsushi 0:f77369cabd75 239 m_pkt.refTm_f = ntohl( m_pkt.refTm_f );
hattori_atsushi 0:f77369cabd75 240 m_pkt.origTm_s = ntohl( m_pkt.origTm_s );
hattori_atsushi 0:f77369cabd75 241 m_pkt.origTm_f = ntohl( m_pkt.origTm_f );
hattori_atsushi 0:f77369cabd75 242 m_pkt.rxTm_s = ntohl( m_pkt.rxTm_s );
hattori_atsushi 0:f77369cabd75 243 m_pkt.rxTm_f = ntohl( m_pkt.rxTm_f );
hattori_atsushi 0:f77369cabd75 244 m_pkt.txTm_s = ntohl( m_pkt.txTm_s );
hattori_atsushi 0:f77369cabd75 245 m_pkt.txTm_f = ntohl( m_pkt.txTm_f );
hattori_atsushi 0:f77369cabd75 246
hattori_atsushi 0:f77369cabd75 247 //Compute offset, see RFC 4330 p.13
hattori_atsushi 0:f77369cabd75 248 uint32_t destTm_s = (NTP_TIMESTAMP_DELTA + time(NULL));
hattori_atsushi 0:f77369cabd75 249 //int32_t origTm = (int32_t) ((uint64_t) m_pkt.origTm - NTP_TIMESTAMP_DELTA); //Convert in local 32 bits timestamps
hattori_atsushi 0:f77369cabd75 250 //int32_t rxTm = (int32_t) ((uint64_t) m_pkt.rxTm - NTP_TIMESTAMP_DELTA); //Convert in local 32 bits timestamps
hattori_atsushi 0:f77369cabd75 251 //int32_t txTm = (int32_t) ((uint64_t) m_pkt.txTm - NTP_TIMESTAMP_DELTA); //Convert in local 32 bits timestamps
hattori_atsushi 0:f77369cabd75 252 // int64_t offset = ( ( ( m_pkt.rxTm_s - m_pkt.origTm_s ) + ( m_pkt.txTm_s - destTm_s ) ) << 32 + ( ( m_pkt.rxTm_f - m_pkt.origTm_f ) + ( m_pkt.txTm_f - 0 ) ) ) / 2;
hattori_atsushi 0:f77369cabd75 253 int64_t offset = ( (int64_t)( m_pkt.rxTm_s - m_pkt.origTm_s ) + (int64_t) ( m_pkt.txTm_s - destTm_s ) ) / 2; //Avoid overflow
hattori_atsushi 0:f77369cabd75 254 DBG("\r\nSent @%d\r\n", m_pkt.txTm_s);
hattori_atsushi 0:f77369cabd75 255 DBG("\r\nOffset: %d\r\n", offset);
hattori_atsushi 0:f77369cabd75 256 //Set time accordingly
hattori_atsushi 0:f77369cabd75 257 set_time( time(NULL) + (offset /*>> 32*/) );
hattori_atsushi 0:f77369cabd75 258
hattori_atsushi 0:f77369cabd75 259 onResult(NTP_OK);
hattori_atsushi 0:f77369cabd75 260 close();
hattori_atsushi 0:f77369cabd75 261
hattori_atsushi 0:f77369cabd75 262 break;
hattori_atsushi 0:f77369cabd75 263 }
hattori_atsushi 0:f77369cabd75 264 }
hattori_atsushi 0:f77369cabd75 265
hattori_atsushi 0:f77369cabd75 266 void NTPClient::setTimeout(int ms)
hattori_atsushi 0:f77369cabd75 267 {
hattori_atsushi 0:f77369cabd75 268 m_timeout = ms;
hattori_atsushi 0:f77369cabd75 269 }
hattori_atsushi 0:f77369cabd75 270
hattori_atsushi 0:f77369cabd75 271 void NTPClient::resetTimeout()
hattori_atsushi 0:f77369cabd75 272 {
hattori_atsushi 0:f77369cabd75 273 m_watchdog.reset();
hattori_atsushi 0:f77369cabd75 274 m_watchdog.start();
hattori_atsushi 0:f77369cabd75 275 }
hattori_atsushi 0:f77369cabd75 276
hattori_atsushi 0:f77369cabd75 277 void NTPClient::onTimeout() //Connection has timed out
hattori_atsushi 0:f77369cabd75 278 {
hattori_atsushi 0:f77369cabd75 279 close();
hattori_atsushi 0:f77369cabd75 280 onResult(NTP_TIMEOUT);
hattori_atsushi 0:f77369cabd75 281 }
hattori_atsushi 0:f77369cabd75 282
hattori_atsushi 0:f77369cabd75 283 void NTPClient::onDNSReply(DNSReply r)
hattori_atsushi 0:f77369cabd75 284 {
hattori_atsushi 0:f77369cabd75 285 if(m_closed)
hattori_atsushi 0:f77369cabd75 286 {
hattori_atsushi 0:f77369cabd75 287 DBG("\r\nWARN: Discarded\r\n");
hattori_atsushi 0:f77369cabd75 288 return;
hattori_atsushi 0:f77369cabd75 289 }
hattori_atsushi 0:f77369cabd75 290
hattori_atsushi 0:f77369cabd75 291 if( r != DNS_FOUND )
hattori_atsushi 0:f77369cabd75 292 {
hattori_atsushi 0:f77369cabd75 293 DBG("\r\nCould not resolve hostname.\r\n");
hattori_atsushi 0:f77369cabd75 294 onResult(NTP_DNS);
hattori_atsushi 0:f77369cabd75 295 close();
hattori_atsushi 0:f77369cabd75 296 return;
hattori_atsushi 0:f77369cabd75 297 }
hattori_atsushi 0:f77369cabd75 298 DBG("\r\nDNS resolved.\r\n");
hattori_atsushi 0:f77369cabd75 299 m_pDnsReq->close();
hattori_atsushi 0:f77369cabd75 300 delete m_pDnsReq;
hattori_atsushi 0:f77369cabd75 301 m_pDnsReq=NULL;
hattori_atsushi 0:f77369cabd75 302 open();
hattori_atsushi 0:f77369cabd75 303 }
hattori_atsushi 0:f77369cabd75 304
hattori_atsushi 0:f77369cabd75 305 void NTPClient::onUDPSocketEvent(UDPSocketEvent e)
hattori_atsushi 0:f77369cabd75 306 {
hattori_atsushi 0:f77369cabd75 307 resetTimeout();
hattori_atsushi 0:f77369cabd75 308 switch(e)
hattori_atsushi 0:f77369cabd75 309 {
hattori_atsushi 0:f77369cabd75 310 case UDPSOCKET_READABLE: //The only event for now
hattori_atsushi 0:f77369cabd75 311 resetTimeout();
hattori_atsushi 0:f77369cabd75 312 process();
hattori_atsushi 0:f77369cabd75 313 break;
hattori_atsushi 0:f77369cabd75 314 }
hattori_atsushi 0:f77369cabd75 315 }
hattori_atsushi 0:f77369cabd75 316
hattori_atsushi 0:f77369cabd75 317 void NTPClient::onResult(NTPResult r) //Must be called by impl when the request completes
hattori_atsushi 0:f77369cabd75 318 {
hattori_atsushi 0:f77369cabd75 319 if(m_pCbItem && m_pCbMeth)
hattori_atsushi 0:f77369cabd75 320 (m_pCbItem->*m_pCbMeth)(r);
hattori_atsushi 0:f77369cabd75 321 else if(m_pCb)
hattori_atsushi 0:f77369cabd75 322 m_pCb(r);
hattori_atsushi 0:f77369cabd75 323 m_blockingResult = r; //Blocking mode
hattori_atsushi 0:f77369cabd75 324 }
hattori_atsushi 0:f77369cabd75 325
hattori_atsushi 0:f77369cabd75 326 NTPResult NTPClient::blockingProcess() //Called in blocking mode, calls Net::poll() until return code is available
hattori_atsushi 0:f77369cabd75 327 {
hattori_atsushi 0:f77369cabd75 328 m_blockingResult = NTP_PROCESSING;
hattori_atsushi 0:f77369cabd75 329 do
hattori_atsushi 0:f77369cabd75 330 {
hattori_atsushi 0:f77369cabd75 331 Net::poll();
hattori_atsushi 0:f77369cabd75 332 } while(m_blockingResult == NTP_PROCESSING);
hattori_atsushi 0:f77369cabd75 333 Net::poll(); //Necessary for cleanup
hattori_atsushi 0:f77369cabd75 334 return m_blockingResult;
hattori_atsushi 0:f77369cabd75 335 }