Richard Blimmel / Mbed 2 deprecated CIG_HTTPClient

HTTPClient using static IP

Dependencies:   mbed

NetServices/services/ntp/NTPClient.cpp@0:d8f2f7d5f31b, 2011-05-30 (annotated)

Committer:
mr_q
Date:
Mon May 30 11:53:37 2011 +0000
Revision:
0:d8f2f7d5f31b
v0.01 Draft

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mr_q 0:d8f2f7d5f31b 1 #pragma diag_remark 1293
mr_q 0:d8f2f7d5f31b 2 /*
mr_q 0:d8f2f7d5f31b 3 Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
mr_q 0:d8f2f7d5f31b 4
mr_q 0:d8f2f7d5f31b 5 Permission is hereby granted, free of charge, to any person obtaining a copy
mr_q 0:d8f2f7d5f31b 6 of this software and associated documentation files (the "Software"), to deal
mr_q 0:d8f2f7d5f31b 7 in the Software without restriction, including without limitation the rights
mr_q 0:d8f2f7d5f31b 8 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
mr_q 0:d8f2f7d5f31b 9 copies of the Software, and to permit persons to whom the Software is
mr_q 0:d8f2f7d5f31b 10 furnished to do so, subject to the following conditions:
mr_q 0:d8f2f7d5f31b 11
mr_q 0:d8f2f7d5f31b 12 The above copyright notice and this permission notice shall be included in
mr_q 0:d8f2f7d5f31b 13 all copies or substantial portions of the Software.
mr_q 0:d8f2f7d5f31b 14
mr_q 0:d8f2f7d5f31b 15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
mr_q 0:d8f2f7d5f31b 16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
mr_q 0:d8f2f7d5f31b 17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
mr_q 0:d8f2f7d5f31b 18 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
mr_q 0:d8f2f7d5f31b 19 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
mr_q 0:d8f2f7d5f31b 20 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
mr_q 0:d8f2f7d5f31b 21 THE SOFTWARE.
mr_q 0:d8f2f7d5f31b 22 */
mr_q 0:d8f2f7d5f31b 23
mr_q 0:d8f2f7d5f31b 24 #include "NTPClient.h"
mr_q 0:d8f2f7d5f31b 25
mr_q 0:d8f2f7d5f31b 26 #include <stdio.h>
mr_q 0:d8f2f7d5f31b 27
mr_q 0:d8f2f7d5f31b 28 //#define __DEBUG
mr_q 0:d8f2f7d5f31b 29 #include "dbg/dbg.h"
mr_q 0:d8f2f7d5f31b 30
mr_q 0:d8f2f7d5f31b 31 #define NTP_PORT 123
mr_q 0:d8f2f7d5f31b 32 #define NTP_CLIENT_PORT 0//50420 //Random port
mr_q 0:d8f2f7d5f31b 33 #define NTP_REQUEST_TIMEOUT 15000
mr_q 0:d8f2f7d5f31b 34 #define NTP_TIMESTAMP_DELTA 2208988800ull //Diff btw a UNIX timestamp (Starting Jan, 1st 1970) and a NTP timestamp (Starting Jan, 1st 1900)
mr_q 0:d8f2f7d5f31b 35
mr_q 0:d8f2f7d5f31b 36 #define htons( x ) ( (( x << 8 ) & 0xFF00) | (( x >> 8 ) & 0x00FF) )
mr_q 0:d8f2f7d5f31b 37 #define ntohs( x ) (htons(x))
mr_q 0:d8f2f7d5f31b 38
mr_q 0:d8f2f7d5f31b 39 #define htonl( x ) ( (( x << 24 ) & 0xFF000000) \
mr_q 0:d8f2f7d5f31b 40 | (( x << 8 ) & 0x00FF0000) \
mr_q 0:d8f2f7d5f31b 41 | (( x >> 8 ) & 0x0000FF00) \
mr_q 0:d8f2f7d5f31b 42 | (( x >> 24 ) & 0x000000FF) )
mr_q 0:d8f2f7d5f31b 43 #define ntohl( x ) (htonl(x))
mr_q 0:d8f2f7d5f31b 44
mr_q 0:d8f2f7d5f31b 45 NTPClient::NTPClient() : NetService(false), m_state(NTP_PING), m_pCbItem(NULL), m_pCbMeth(NULL), m_pCb(NULL),
mr_q 0:d8f2f7d5f31b 46 m_watchdog(), m_timeout(0), m_closed(true), m_host(), m_pDnsReq(NULL), m_blockingResult(NTP_PROCESSING)
mr_q 0:d8f2f7d5f31b 47 {
mr_q 0:d8f2f7d5f31b 48 setTimeout(NTP_REQUEST_TIMEOUT);
mr_q 0:d8f2f7d5f31b 49 DBG("\r\nNew NTPClient %p\r\n",this);
mr_q 0:d8f2f7d5f31b 50 }
mr_q 0:d8f2f7d5f31b 51
mr_q 0:d8f2f7d5f31b 52 NTPClient::~NTPClient()
mr_q 0:d8f2f7d5f31b 53 {
mr_q 0:d8f2f7d5f31b 54 close();
mr_q 0:d8f2f7d5f31b 55 }
mr_q 0:d8f2f7d5f31b 56
mr_q 0:d8f2f7d5f31b 57 //High level setup functions
mr_q 0:d8f2f7d5f31b 58 NTPResult NTPClient::setTime(const Host& host) //Blocking
mr_q 0:d8f2f7d5f31b 59 {
mr_q 0:d8f2f7d5f31b 60 doSetTime(host);
mr_q 0:d8f2f7d5f31b 61 return blockingProcess();
mr_q 0:d8f2f7d5f31b 62 }
mr_q 0:d8f2f7d5f31b 63
mr_q 0:d8f2f7d5f31b 64 NTPResult NTPClient::setTime(const Host& host, void (*pMethod)(NTPResult)) //Non blocking
mr_q 0:d8f2f7d5f31b 65 {
mr_q 0:d8f2f7d5f31b 66 setOnResult(pMethod);
mr_q 0:d8f2f7d5f31b 67 doSetTime(host);
mr_q 0:d8f2f7d5f31b 68 return NTP_PROCESSING;
mr_q 0:d8f2f7d5f31b 69 }
mr_q 0:d8f2f7d5f31b 70
mr_q 0:d8f2f7d5f31b 71 #if 0 //For doc only
mr_q 0:d8f2f7d5f31b 72 template<class T>
mr_q 0:d8f2f7d5f31b 73 NTPResult NTPClient::setTime(const Host& host, T* pItem, void (T::*pMethod)(NTPResult)) //Non blocking
mr_q 0:d8f2f7d5f31b 74 {
mr_q 0:d8f2f7d5f31b 75 setOnResult(pItem, pMethod);
mr_q 0:d8f2f7d5f31b 76 doSetTime(host);
mr_q 0:d8f2f7d5f31b 77 return NTP_PROCESSING;
mr_q 0:d8f2f7d5f31b 78 }
mr_q 0:d8f2f7d5f31b 79 #endif
mr_q 0:d8f2f7d5f31b 80
mr_q 0:d8f2f7d5f31b 81 void NTPClient::doSetTime(const Host& host)
mr_q 0:d8f2f7d5f31b 82 {
mr_q 0:d8f2f7d5f31b 83 init();
mr_q 0:d8f2f7d5f31b 84 resetTimeout();
mr_q 0:d8f2f7d5f31b 85 m_host = host;
mr_q 0:d8f2f7d5f31b 86 if(!m_host.getPort())
mr_q 0:d8f2f7d5f31b 87 {
mr_q 0:d8f2f7d5f31b 88 m_host.setPort(NTP_PORT);
mr_q 0:d8f2f7d5f31b 89 }
mr_q 0:d8f2f7d5f31b 90 if(m_host.getIp().isNull())
mr_q 0:d8f2f7d5f31b 91 {
mr_q 0:d8f2f7d5f31b 92 //DNS query required
mr_q 0:d8f2f7d5f31b 93 m_pDnsReq = new DNSRequest();
mr_q 0:d8f2f7d5f31b 94 DBG("\r\nNTPClient : DNSRequest %p\r\n", m_pDnsReq);
mr_q 0:d8f2f7d5f31b 95 m_pDnsReq->setOnReply(this, &NTPClient::onDNSReply);
mr_q 0:d8f2f7d5f31b 96 m_pDnsReq->resolve(&m_host);
mr_q 0:d8f2f7d5f31b 97 return;
mr_q 0:d8f2f7d5f31b 98 }
mr_q 0:d8f2f7d5f31b 99 open();
mr_q 0:d8f2f7d5f31b 100 }
mr_q 0:d8f2f7d5f31b 101
mr_q 0:d8f2f7d5f31b 102 void NTPClient::setOnResult( void (*pMethod)(NTPResult) )
mr_q 0:d8f2f7d5f31b 103 {
mr_q 0:d8f2f7d5f31b 104 m_pCb = pMethod;
mr_q 0:d8f2f7d5f31b 105 }
mr_q 0:d8f2f7d5f31b 106
mr_q 0:d8f2f7d5f31b 107 void NTPClient::close()
mr_q 0:d8f2f7d5f31b 108 {
mr_q 0:d8f2f7d5f31b 109 if(m_closed)
mr_q 0:d8f2f7d5f31b 110 return;
mr_q 0:d8f2f7d5f31b 111 m_closed = true; //Prevent recursive calling or calling on an object being destructed by someone else
mr_q 0:d8f2f7d5f31b 112 m_watchdog.stop();
mr_q 0:d8f2f7d5f31b 113 m_pUDPSocket->resetOnEvent();
mr_q 0:d8f2f7d5f31b 114 m_pUDPSocket->close();
mr_q 0:d8f2f7d5f31b 115 delete m_pUDPSocket;
mr_q 0:d8f2f7d5f31b 116 if( m_pDnsReq )
mr_q 0:d8f2f7d5f31b 117 {
mr_q 0:d8f2f7d5f31b 118 m_pDnsReq->close();
mr_q 0:d8f2f7d5f31b 119 delete m_pDnsReq;
mr_q 0:d8f2f7d5f31b 120 m_pDnsReq = NULL;
mr_q 0:d8f2f7d5f31b 121 }
mr_q 0:d8f2f7d5f31b 122 }
mr_q 0:d8f2f7d5f31b 123
mr_q 0:d8f2f7d5f31b 124 void NTPClient::poll() //Called by NetServices
mr_q 0:d8f2f7d5f31b 125 {
mr_q 0:d8f2f7d5f31b 126 if( (!m_closed) && (m_watchdog.read_ms() >= m_timeout) )
mr_q 0:d8f2f7d5f31b 127 {
mr_q 0:d8f2f7d5f31b 128 onTimeout();
mr_q 0:d8f2f7d5f31b 129 }
mr_q 0:d8f2f7d5f31b 130 }
mr_q 0:d8f2f7d5f31b 131
mr_q 0:d8f2f7d5f31b 132 void NTPClient::init() //Create and setup socket if needed
mr_q 0:d8f2f7d5f31b 133 {
mr_q 0:d8f2f7d5f31b 134 if(!m_closed) //Already opened
mr_q 0:d8f2f7d5f31b 135 return;
mr_q 0:d8f2f7d5f31b 136 m_state = NTP_PING;
mr_q 0:d8f2f7d5f31b 137 m_pUDPSocket = new UDPSocket;
mr_q 0:d8f2f7d5f31b 138 m_pUDPSocket->setOnEvent(this, &NTPClient::onUDPSocketEvent);
mr_q 0:d8f2f7d5f31b 139 m_closed = false;
mr_q 0:d8f2f7d5f31b 140 DBG("NTPClient: Init OK\n");
mr_q 0:d8f2f7d5f31b 141 }
mr_q 0:d8f2f7d5f31b 142
mr_q 0:d8f2f7d5f31b 143 void NTPClient::open()
mr_q 0:d8f2f7d5f31b 144 {
mr_q 0:d8f2f7d5f31b 145 resetTimeout();
mr_q 0:d8f2f7d5f31b 146 DBG("Opening connection\n");
mr_q 0:d8f2f7d5f31b 147 m_state = NTP_PING;
mr_q 0:d8f2f7d5f31b 148 Host localhost(IpAddr(), NTP_CLIENT_PORT, "localhost"); //Any local address
mr_q 0:d8f2f7d5f31b 149 m_pUDPSocket->bind(localhost);
mr_q 0:d8f2f7d5f31b 150 if ((int)time(NULL) < 1280000000) set_time( 1280000000 ); //End of July 2010... just there to limit offset range
mr_q 0:d8f2f7d5f31b 151 process();
mr_q 0:d8f2f7d5f31b 152 }
mr_q 0:d8f2f7d5f31b 153
mr_q 0:d8f2f7d5f31b 154 #define MIN(a,b) ((a)<(b))?(a):(b)
mr_q 0:d8f2f7d5f31b 155 void NTPClient::process() //Main state-machine
mr_q 0:d8f2f7d5f31b 156 {
mr_q 0:d8f2f7d5f31b 157 int len;
mr_q 0:d8f2f7d5f31b 158 Host host;
mr_q 0:d8f2f7d5f31b 159
mr_q 0:d8f2f7d5f31b 160 switch(m_state)
mr_q 0:d8f2f7d5f31b 161 {
mr_q 0:d8f2f7d5f31b 162 case NTP_PING:
mr_q 0:d8f2f7d5f31b 163 DBG("\r\nPing\r\n");
mr_q 0:d8f2f7d5f31b 164 //Prepare NTP Packet:
mr_q 0:d8f2f7d5f31b 165 m_pkt.li = 0; //Leap Indicator : No warning
mr_q 0:d8f2f7d5f31b 166 m_pkt.vn = 4; //Version Number : 4
mr_q 0:d8f2f7d5f31b 167 m_pkt.mode = 3; //Client mode
mr_q 0:d8f2f7d5f31b 168 m_pkt.stratum = 0; //Not relevant here
mr_q 0:d8f2f7d5f31b 169 m_pkt.poll = 0; //Not significant as well
mr_q 0:d8f2f7d5f31b 170 m_pkt.precision = 0; //Neither this one is
mr_q 0:d8f2f7d5f31b 171
mr_q 0:d8f2f7d5f31b 172 m_pkt.rootDelay = 0; //Or this one
mr_q 0:d8f2f7d5f31b 173 m_pkt.rootDispersion = 0; //Or that one
mr_q 0:d8f2f7d5f31b 174 m_pkt.refId = 0; //...
mr_q 0:d8f2f7d5f31b 175
mr_q 0:d8f2f7d5f31b 176 m_pkt.refTm_s = 0;
mr_q 0:d8f2f7d5f31b 177 m_pkt.origTm_s = 0;
mr_q 0:d8f2f7d5f31b 178 m_pkt.rxTm_s = 0;
mr_q 0:d8f2f7d5f31b 179 m_pkt.txTm_s = htonl( NTP_TIMESTAMP_DELTA + time(NULL) ); //WARN: We are in LE format, network byte order is BE
mr_q 0:d8f2f7d5f31b 180
mr_q 0:d8f2f7d5f31b 181 m_pkt.refTm_f = m_pkt.origTm_f = m_pkt.rxTm_f = m_pkt.txTm_f = 0;
mr_q 0:d8f2f7d5f31b 182
mr_q 0:d8f2f7d5f31b 183 #ifdef __DEBUG
mr_q 0:d8f2f7d5f31b 184 //Hex Dump:
mr_q 0:d8f2f7d5f31b 185 DBG("\r\nDump Tx:\r\n");
mr_q 0:d8f2f7d5f31b 186 for(int i = 0; i< sizeof(NTPPacket); i++)
mr_q 0:d8f2f7d5f31b 187 {
mr_q 0:d8f2f7d5f31b 188 DBG("%02x ", *((char*)&m_pkt + i));
mr_q 0:d8f2f7d5f31b 189 }
mr_q 0:d8f2f7d5f31b 190 DBG("\r\n\r\n");
mr_q 0:d8f2f7d5f31b 191 #endif
mr_q 0:d8f2f7d5f31b 192
mr_q 0:d8f2f7d5f31b 193 len = m_pUDPSocket->sendto( (char*)&m_pkt, sizeof(NTPPacket), &m_host );
mr_q 0:d8f2f7d5f31b 194 if(len < sizeof(NTPPacket))
mr_q 0:d8f2f7d5f31b 195 { onResult(NTP_PRTCL); close(); return; }
mr_q 0:d8f2f7d5f31b 196
mr_q 0:d8f2f7d5f31b 197 m_state = NTP_PONG;
mr_q 0:d8f2f7d5f31b 198
mr_q 0:d8f2f7d5f31b 199 break;
mr_q 0:d8f2f7d5f31b 200
mr_q 0:d8f2f7d5f31b 201 case NTP_PONG:
mr_q 0:d8f2f7d5f31b 202 DBG("\r\nPong\r\n");
mr_q 0:d8f2f7d5f31b 203 while( len = m_pUDPSocket->recvfrom( (char*)&m_pkt, sizeof(NTPPacket), &host ) )
mr_q 0:d8f2f7d5f31b 204 {
mr_q 0:d8f2f7d5f31b 205 if( len <= 0 )
mr_q 0:d8f2f7d5f31b 206 break;
mr_q 0:d8f2f7d5f31b 207 if( !host.getIp().isEq(m_host.getIp()) )
mr_q 0:d8f2f7d5f31b 208 continue; //Not our packet
mr_q 0:d8f2f7d5f31b 209 if( len > 0 )
mr_q 0:d8f2f7d5f31b 210 break;
mr_q 0:d8f2f7d5f31b 211 }
mr_q 0:d8f2f7d5f31b 212
mr_q 0:d8f2f7d5f31b 213 if(len == 0)
mr_q 0:d8f2f7d5f31b 214 return; //Wait for the next packet
mr_q 0:d8f2f7d5f31b 215
mr_q 0:d8f2f7d5f31b 216 if(len < 0)
mr_q 0:d8f2f7d5f31b 217 { onResult(NTP_PRTCL); close(); return; }
mr_q 0:d8f2f7d5f31b 218
mr_q 0:d8f2f7d5f31b 219 if(len < sizeof(NTPPacket)) //TODO: Accept chunks
mr_q 0:d8f2f7d5f31b 220 { onResult(NTP_PRTCL); close(); return; }
mr_q 0:d8f2f7d5f31b 221
mr_q 0:d8f2f7d5f31b 222 #ifdef __DEBUG
mr_q 0:d8f2f7d5f31b 223 //Hex Dump:
mr_q 0:d8f2f7d5f31b 224 DBG("\r\nDump Rx:\r\n");
mr_q 0:d8f2f7d5f31b 225 for(int i = 0; i< sizeof(NTPPacket); i++)
mr_q 0:d8f2f7d5f31b 226 {
mr_q 0:d8f2f7d5f31b 227 DBG("%02x ", *((char*)&m_pkt + i));
mr_q 0:d8f2f7d5f31b 228 }
mr_q 0:d8f2f7d5f31b 229 DBG("\r\n\r\n");
mr_q 0:d8f2f7d5f31b 230 #endif
mr_q 0:d8f2f7d5f31b 231
mr_q 0:d8f2f7d5f31b 232 if( m_pkt.stratum == 0) //Kiss of death message : Not good !
mr_q 0:d8f2f7d5f31b 233 {
mr_q 0:d8f2f7d5f31b 234 onResult(NTP_PRTCL); close(); return;
mr_q 0:d8f2f7d5f31b 235 }
mr_q 0:d8f2f7d5f31b 236
mr_q 0:d8f2f7d5f31b 237 //Correct Endianness
mr_q 0:d8f2f7d5f31b 238 m_pkt.refTm_s = ntohl( m_pkt.refTm_s );
mr_q 0:d8f2f7d5f31b 239 m_pkt.refTm_f = ntohl( m_pkt.refTm_f );
mr_q 0:d8f2f7d5f31b 240 m_pkt.origTm_s = ntohl( m_pkt.origTm_s );
mr_q 0:d8f2f7d5f31b 241 m_pkt.origTm_f = ntohl( m_pkt.origTm_f );
mr_q 0:d8f2f7d5f31b 242 m_pkt.rxTm_s = ntohl( m_pkt.rxTm_s );
mr_q 0:d8f2f7d5f31b 243 m_pkt.rxTm_f = ntohl( m_pkt.rxTm_f );
mr_q 0:d8f2f7d5f31b 244 m_pkt.txTm_s = ntohl( m_pkt.txTm_s );
mr_q 0:d8f2f7d5f31b 245 m_pkt.txTm_f = ntohl( m_pkt.txTm_f );
mr_q 0:d8f2f7d5f31b 246
mr_q 0:d8f2f7d5f31b 247 //Compute offset, see RFC 4330 p.13
mr_q 0:d8f2f7d5f31b 248 uint32_t destTm_s = (NTP_TIMESTAMP_DELTA + time(NULL));
mr_q 0:d8f2f7d5f31b 249 //int32_t origTm = (int32_t) ((uint64_t) m_pkt.origTm - NTP_TIMESTAMP_DELTA); //Convert in local 32 bits timestamps
mr_q 0:d8f2f7d5f31b 250 //int32_t rxTm = (int32_t) ((uint64_t) m_pkt.rxTm - NTP_TIMESTAMP_DELTA); //Convert in local 32 bits timestamps
mr_q 0:d8f2f7d5f31b 251 //int32_t txTm = (int32_t) ((uint64_t) m_pkt.txTm - NTP_TIMESTAMP_DELTA); //Convert in local 32 bits timestamps
mr_q 0:d8f2f7d5f31b 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;
mr_q 0:d8f2f7d5f31b 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
mr_q 0:d8f2f7d5f31b 254 DBG("\r\nSent @%d\r\n", m_pkt.txTm_s);
mr_q 0:d8f2f7d5f31b 255 DBG("\r\nOffset: %d\r\n", offset);
mr_q 0:d8f2f7d5f31b 256 //Set time accordingly
mr_q 0:d8f2f7d5f31b 257 set_time( time(NULL) + (offset /*>> 32*/) );
mr_q 0:d8f2f7d5f31b 258
mr_q 0:d8f2f7d5f31b 259 onResult(NTP_OK);
mr_q 0:d8f2f7d5f31b 260 close();
mr_q 0:d8f2f7d5f31b 261
mr_q 0:d8f2f7d5f31b 262 break;
mr_q 0:d8f2f7d5f31b 263 }
mr_q 0:d8f2f7d5f31b 264 }
mr_q 0:d8f2f7d5f31b 265
mr_q 0:d8f2f7d5f31b 266 void NTPClient::setTimeout(int ms)
mr_q 0:d8f2f7d5f31b 267 {
mr_q 0:d8f2f7d5f31b 268 m_timeout = ms;
mr_q 0:d8f2f7d5f31b 269 }
mr_q 0:d8f2f7d5f31b 270
mr_q 0:d8f2f7d5f31b 271 void NTPClient::resetTimeout()
mr_q 0:d8f2f7d5f31b 272 {
mr_q 0:d8f2f7d5f31b 273 m_watchdog.reset();
mr_q 0:d8f2f7d5f31b 274 m_watchdog.start();
mr_q 0:d8f2f7d5f31b 275 }
mr_q 0:d8f2f7d5f31b 276
mr_q 0:d8f2f7d5f31b 277 void NTPClient::onTimeout() //Connection has timed out
mr_q 0:d8f2f7d5f31b 278 {
mr_q 0:d8f2f7d5f31b 279 close();
mr_q 0:d8f2f7d5f31b 280 onResult(NTP_TIMEOUT);
mr_q 0:d8f2f7d5f31b 281 }
mr_q 0:d8f2f7d5f31b 282
mr_q 0:d8f2f7d5f31b 283 void NTPClient::onDNSReply(DNSReply r)
mr_q 0:d8f2f7d5f31b 284 {
mr_q 0:d8f2f7d5f31b 285 if(m_closed)
mr_q 0:d8f2f7d5f31b 286 {
mr_q 0:d8f2f7d5f31b 287 DBG("\r\nWARN: Discarded\r\n");
mr_q 0:d8f2f7d5f31b 288 return;
mr_q 0:d8f2f7d5f31b 289 }
mr_q 0:d8f2f7d5f31b 290
mr_q 0:d8f2f7d5f31b 291 if( r != DNS_FOUND )
mr_q 0:d8f2f7d5f31b 292 {
mr_q 0:d8f2f7d5f31b 293 DBG("\r\nCould not resolve hostname.\r\n");
mr_q 0:d8f2f7d5f31b 294 onResult(NTP_DNS);
mr_q 0:d8f2f7d5f31b 295 close();
mr_q 0:d8f2f7d5f31b 296 return;
mr_q 0:d8f2f7d5f31b 297 }
mr_q 0:d8f2f7d5f31b 298 DBG("\r\nDNS resolved.\r\n");
mr_q 0:d8f2f7d5f31b 299 m_pDnsReq->close();
mr_q 0:d8f2f7d5f31b 300 delete m_pDnsReq;
mr_q 0:d8f2f7d5f31b 301 m_pDnsReq=NULL;
mr_q 0:d8f2f7d5f31b 302 open();
mr_q 0:d8f2f7d5f31b 303 }
mr_q 0:d8f2f7d5f31b 304
mr_q 0:d8f2f7d5f31b 305 void NTPClient::onUDPSocketEvent(UDPSocketEvent e)
mr_q 0:d8f2f7d5f31b 306 {
mr_q 0:d8f2f7d5f31b 307 resetTimeout();
mr_q 0:d8f2f7d5f31b 308 switch(e)
mr_q 0:d8f2f7d5f31b 309 {
mr_q 0:d8f2f7d5f31b 310 case UDPSOCKET_READABLE: //The only event for now
mr_q 0:d8f2f7d5f31b 311 resetTimeout();
mr_q 0:d8f2f7d5f31b 312 process();
mr_q 0:d8f2f7d5f31b 313 break;
mr_q 0:d8f2f7d5f31b 314 }
mr_q 0:d8f2f7d5f31b 315 }
mr_q 0:d8f2f7d5f31b 316
mr_q 0:d8f2f7d5f31b 317 void NTPClient::onResult(NTPResult r) //Must be called by impl when the request completes
mr_q 0:d8f2f7d5f31b 318 {
mr_q 0:d8f2f7d5f31b 319 if(m_pCbItem && m_pCbMeth)
mr_q 0:d8f2f7d5f31b 320 (m_pCbItem->*m_pCbMeth)(r);
mr_q 0:d8f2f7d5f31b 321 else if(m_pCb)
mr_q 0:d8f2f7d5f31b 322 m_pCb(r);
mr_q 0:d8f2f7d5f31b 323 m_blockingResult = r; //Blocking mode
mr_q 0:d8f2f7d5f31b 324 }
mr_q 0:d8f2f7d5f31b 325
mr_q 0:d8f2f7d5f31b 326 NTPResult NTPClient::blockingProcess() //Called in blocking mode, calls Net::poll() until return code is available
mr_q 0:d8f2f7d5f31b 327 {
mr_q 0:d8f2f7d5f31b 328 m_blockingResult = NTP_PROCESSING;
mr_q 0:d8f2f7d5f31b 329 do
mr_q 0:d8f2f7d5f31b 330 {
mr_q 0:d8f2f7d5f31b 331 Net::poll();
mr_q 0:d8f2f7d5f31b 332 } while(m_blockingResult == NTP_PROCESSING);
mr_q 0:d8f2f7d5f31b 333 Net::poll(); //Necessary for cleanup
mr_q 0:d8f2f7d5f31b 334 return m_blockingResult;
mr_q 0:d8f2f7d5f31b 335 }