Donatien Garnier
Dependents: SimpleLCDClock readCard2Twitter_http AnalogClock_StepperMotor_NTP ServoCamV1
services/ntp/NtpClient.h@0:a2dd0ba6cd2d, 2010-05-24 (annotated)
- Committer:
- donatien
- Date:
- Mon May 24 10:24:38 2010 +0000
- Revision:
- 0:a2dd0ba6cd2d
- Child:
- 1:7043cc0db03c
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| donatien | 0:a2dd0ba6cd2d | 1 | #ifndef SMTP_CLIENT_H |
| donatien | 0:a2dd0ba6cd2d | 2 | #define SMTP_CLIENT_H |
| donatien | 0:a2dd0ba6cd2d | 3 | |
| donatien | 0:a2dd0ba6cd2d | 4 | #include "if/net/net.h" |
| donatien | 0:a2dd0ba6cd2d | 5 | #include "api/UdpSocket.h" |
| donatien | 0:a2dd0ba6cd2d | 6 | #include "api/DnsRequest.h" |
| donatien | 0:a2dd0ba6cd2d | 7 | #include "mbed.h" |
| donatien | 0:a2dd0ba6cd2d | 8 | |
| donatien | 0:a2dd0ba6cd2d | 9 | #define NTP_PORT 123 |
| donatien | 0:a2dd0ba6cd2d | 10 | #define NTP_REQUEST_TIMEOUT 15000 |
| donatien | 0:a2dd0ba6cd2d | 11 | #define NTP_TIMESTAMP_DELTA 2208988800ull //Diff btw a UNIX timestamp (Starting Jan, 1st 1970) and a NTP timestamp (Starting Jan, 1st 1900) |
| donatien | 0:a2dd0ba6cd2d | 12 | |
| donatien | 0:a2dd0ba6cd2d | 13 | enum NtpResult |
| donatien | 0:a2dd0ba6cd2d | 14 | { |
| donatien | 0:a2dd0ba6cd2d | 15 | NTP_OK, |
| donatien | 0:a2dd0ba6cd2d | 16 | NTP_PROCESSING, |
| donatien | 0:a2dd0ba6cd2d | 17 | NTP_PRTCL, //Protocol error |
| donatien | 0:a2dd0ba6cd2d | 18 | NTP_TIMEOUT, //Connection timeout |
| donatien | 0:a2dd0ba6cd2d | 19 | NTP_DNS //Could not resolve DNS Addr |
| donatien | 0:a2dd0ba6cd2d | 20 | }; |
| donatien | 0:a2dd0ba6cd2d | 21 | |
| donatien | 0:a2dd0ba6cd2d | 22 | class NtpClient |
| donatien | 0:a2dd0ba6cd2d | 23 | { |
| donatien | 0:a2dd0ba6cd2d | 24 | public: |
| donatien | 0:a2dd0ba6cd2d | 25 | NtpClient(); |
| donatien | 0:a2dd0ba6cd2d | 26 | virtual ~NtpClient(); |
| donatien | 0:a2dd0ba6cd2d | 27 | |
| donatien | 0:a2dd0ba6cd2d | 28 | //High level setup functions |
| donatien | 0:a2dd0ba6cd2d | 29 | NtpResult setTime(const Host& host); //Blocking |
| donatien | 0:a2dd0ba6cd2d | 30 | NtpResult setTime(const Host& host, void (*pMethod)(NtpResult)); //Non blocking |
| donatien | 0:a2dd0ba6cd2d | 31 | template<class T> |
| donatien | 0:a2dd0ba6cd2d | 32 | //Linker bug : Must be defined here :( |
| donatien | 0:a2dd0ba6cd2d | 33 | NtpResult setTime(const Host& host, T* pItem, void (T::*pMethod)(NtpResult)) //Non blocking |
| donatien | 0:a2dd0ba6cd2d | 34 | { |
| donatien | 0:a2dd0ba6cd2d | 35 | setOnResult(pItem, pMethod); |
| donatien | 0:a2dd0ba6cd2d | 36 | doSetTime(host); |
| donatien | 0:a2dd0ba6cd2d | 37 | return NTP_PROCESSING; |
| donatien | 0:a2dd0ba6cd2d | 38 | } |
| donatien | 0:a2dd0ba6cd2d | 39 | |
| donatien | 0:a2dd0ba6cd2d | 40 | void doSetTime(const Host& host); |
| donatien | 0:a2dd0ba6cd2d | 41 | |
| donatien | 0:a2dd0ba6cd2d | 42 | void setOnResult( void (*pMethod)(NtpResult) ); |
| donatien | 0:a2dd0ba6cd2d | 43 | class CDummy; |
| donatien | 0:a2dd0ba6cd2d | 44 | template<class T> |
| donatien | 0:a2dd0ba6cd2d | 45 | //Linker bug : Must be defined here :( |
| donatien | 0:a2dd0ba6cd2d | 46 | void setOnResult( T* pItem, void (T::*pMethod)(NtpResult) ) |
| donatien | 0:a2dd0ba6cd2d | 47 | { |
| donatien | 0:a2dd0ba6cd2d | 48 | m_pCbItem = (CDummy*) pItem; |
| donatien | 0:a2dd0ba6cd2d | 49 | m_pCbMeth = (void (CDummy::*)(NtpResult)) pMethod; |
| donatien | 0:a2dd0ba6cd2d | 50 | } |
| donatien | 0:a2dd0ba6cd2d | 51 | |
| donatien | 0:a2dd0ba6cd2d | 52 | void init(); |
| donatien | 0:a2dd0ba6cd2d | 53 | void close(); |
| donatien | 0:a2dd0ba6cd2d | 54 | |
| donatien | 0:a2dd0ba6cd2d | 55 | private: |
| donatien | 0:a2dd0ba6cd2d | 56 | __packed struct NtpPacket //See RFC 4330 for Simple NTP |
| donatien | 0:a2dd0ba6cd2d | 57 | { |
| donatien | 0:a2dd0ba6cd2d | 58 | //WARN: We are in LE! Network is BE! |
| donatien | 0:a2dd0ba6cd2d | 59 | //LSb first |
| donatien | 0:a2dd0ba6cd2d | 60 | unsigned mode : 3; |
| donatien | 0:a2dd0ba6cd2d | 61 | unsigned vn : 3; |
| donatien | 0:a2dd0ba6cd2d | 62 | unsigned li : 2; |
| donatien | 0:a2dd0ba6cd2d | 63 | |
| donatien | 0:a2dd0ba6cd2d | 64 | uint8_t stratum; |
| donatien | 0:a2dd0ba6cd2d | 65 | uint8_t poll; |
| donatien | 0:a2dd0ba6cd2d | 66 | uint8_t precision; |
| donatien | 0:a2dd0ba6cd2d | 67 | //32 bits header |
| donatien | 0:a2dd0ba6cd2d | 68 | |
| donatien | 0:a2dd0ba6cd2d | 69 | uint32_t rootDelay; |
| donatien | 0:a2dd0ba6cd2d | 70 | uint32_t rootDispersion; |
| donatien | 0:a2dd0ba6cd2d | 71 | uint32_t refId; |
| donatien | 0:a2dd0ba6cd2d | 72 | |
| donatien | 0:a2dd0ba6cd2d | 73 | uint32_t refTm_s; |
| donatien | 0:a2dd0ba6cd2d | 74 | uint32_t refTm_f; |
| donatien | 0:a2dd0ba6cd2d | 75 | uint32_t origTm_s; |
| donatien | 0:a2dd0ba6cd2d | 76 | uint32_t origTm_f; |
| donatien | 0:a2dd0ba6cd2d | 77 | uint32_t rxTm_s; |
| donatien | 0:a2dd0ba6cd2d | 78 | uint32_t rxTm_f; |
| donatien | 0:a2dd0ba6cd2d | 79 | uint32_t txTm_s; |
| donatien | 0:a2dd0ba6cd2d | 80 | uint32_t txTm_f; |
| donatien | 0:a2dd0ba6cd2d | 81 | }; |
| donatien | 0:a2dd0ba6cd2d | 82 | |
| donatien | 0:a2dd0ba6cd2d | 83 | void process(); //Main state-machine |
| donatien | 0:a2dd0ba6cd2d | 84 | |
| donatien | 0:a2dd0ba6cd2d | 85 | void setTimeout(int ms); |
| donatien | 0:a2dd0ba6cd2d | 86 | void resetTimeout(); |
| donatien | 0:a2dd0ba6cd2d | 87 | |
| donatien | 0:a2dd0ba6cd2d | 88 | void onTimeout(); //Connection has timed out |
| donatien | 0:a2dd0ba6cd2d | 89 | void onDnsReply(DnsReply r); |
| donatien | 0:a2dd0ba6cd2d | 90 | void onUdpSocketEvent(UdpSocketEvent e); |
| donatien | 0:a2dd0ba6cd2d | 91 | void onResult(NtpResult r); //Called when exchange completed or on failure |
| donatien | 0:a2dd0ba6cd2d | 92 | |
| donatien | 0:a2dd0ba6cd2d | 93 | NtpResult blockingProcess(); //Called in blocking mode, calls Net::poll() until return code is available |
| donatien | 0:a2dd0ba6cd2d | 94 | |
| donatien | 0:a2dd0ba6cd2d | 95 | UdpSocket* m_pUdpSocket; |
| donatien | 0:a2dd0ba6cd2d | 96 | |
| donatien | 0:a2dd0ba6cd2d | 97 | enum NtpStep |
| donatien | 0:a2dd0ba6cd2d | 98 | { |
| donatien | 0:a2dd0ba6cd2d | 99 | NTP_PING, |
| donatien | 0:a2dd0ba6cd2d | 100 | NTP_PONG |
| donatien | 0:a2dd0ba6cd2d | 101 | }; |
| donatien | 0:a2dd0ba6cd2d | 102 | |
| donatien | 0:a2dd0ba6cd2d | 103 | NtpStep m_state; |
| donatien | 0:a2dd0ba6cd2d | 104 | |
| donatien | 0:a2dd0ba6cd2d | 105 | CDummy* m_pCbItem; |
| donatien | 0:a2dd0ba6cd2d | 106 | void (CDummy::*m_pCbMeth)(NtpResult); |
| donatien | 0:a2dd0ba6cd2d | 107 | |
| donatien | 0:a2dd0ba6cd2d | 108 | void (*m_pCb)(NtpResult); |
| donatien | 0:a2dd0ba6cd2d | 109 | |
| donatien | 0:a2dd0ba6cd2d | 110 | Timeout m_watchdog; |
| donatien | 0:a2dd0ba6cd2d | 111 | int m_timeout; |
| donatien | 0:a2dd0ba6cd2d | 112 | |
| donatien | 0:a2dd0ba6cd2d | 113 | bool m_closed; |
| donatien | 0:a2dd0ba6cd2d | 114 | |
| donatien | 0:a2dd0ba6cd2d | 115 | Host m_host; |
| donatien | 0:a2dd0ba6cd2d | 116 | |
| donatien | 0:a2dd0ba6cd2d | 117 | DnsRequest* m_pDnsReq; |
| donatien | 0:a2dd0ba6cd2d | 118 | |
| donatien | 0:a2dd0ba6cd2d | 119 | NtpResult m_blockingResult; //Result if blocking mode |
| donatien | 0:a2dd0ba6cd2d | 120 | |
| donatien | 0:a2dd0ba6cd2d | 121 | }; |
| donatien | 0:a2dd0ba6cd2d | 122 | |
| donatien | 0:a2dd0ba6cd2d | 123 | #endif |