nbtime.h

/*NB_REVISION*/
 
/*NB_COPYRIGHT*/
 
#include <servlets.h>
#include <config_obj.h>
#include <nbstring.h>
#include <nettimer.h>
#include <nettypes.h>
 
#include <time.h>
 
#ifndef _NB_TIME_H
#define _NB_TIME_H
 
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
 
time_t time(time_t *pt);
 
#ifdef __cplusplus
};
#endif /* __cplusplus */
 
time_t set_time(time_t time_to_set, uint32_t fraction=0);
 
time_t timegm(struct tm *bts);
 
#ifdef NB_NET_TYPES_H
 
BOOL SetNTPTime(IPADDR ntpserver);
 
BOOL SetTimeNTPFromPool(bool debug = FALSE);
 
time_t GetNTPTime(IPADDR NTP_server_ip, uint32_t * pFraction=0);
 
 
#define TWELVE_HOURS_SECS (12*3600)
#define ONE_DAY_SECS (14*3600)
 
class NtpClientServlet: public servlet, public config_obj, public TimeOutElement
{
  public:
    config_string m_ServerAddress;
    config_int    m_interval;
    ConfigEndMarker;   // No new data members below this line
  protected:
    OS_FLAGS NTPFlag; 
    NBString m_server;  //Name of server
    time_t last_update;  //time of last valid update in system Secs
    time_t last_attempt; //time of last update in system Secs
    uint32_t m_TickSent; //Transmit time
    servlet_list * m_pWhoToReJoin;
 
    int m_fd;         //fd to hold DNS Requests and UDP send/rx
    int cur_state; //State variable
 
    //Servlet virtual functions
    virtual int AddToSelectSet(fd_set &rd_set, fd_set &wr_set, fd_set &er_set);
    virtual void ProcessSelectResult(fd_set &rd_set, fd_set &wr_set, fd_set &er_set);
    //Timeout element virtual function
    virtual void TimeElementEvent();
 
  public:
    NtpClientServlet(const char* NTP_Server="pool.ntp.org",uint32_t update_interval_sec=TWELVE_HOURS_SECS);
 
    NtpClientServlet(servlet_list * List_To_Join, const char* NTP_Server="pool.ntp.org",uint32_t update_interval_sec=TWELVE_HOURS_SECS);
 
    bool TimeIsValid();
 
    bool TimeIsCurrent();
 
    bool RefreshNow(uint32_t ticks_to_wait);
 
    bool WaitForValid(uint32_t ticks_to_wait);
 
    inline  time_t GetSecsSinceUpdate() {return Secs-last_update; }
 
    inline void SetServer(const char* pServer) {m_server = pServer;  m_ServerAddress = pServer; cur_state = 0;}
};
 
#endif /* NB_NET_TYPES_H */
 
 
/*
 * Legacy function calls.
 */
// int IOBoardRTCSetSystemFromRTCTime(void);
// int IOBoardRTCSetRTCfromSystemTime(void);
 
/*
 * Set the local time zone by using the TZ environment variable.
 * Use one of the following for the U.S.:
 *
 *    tzsetchar( "EST5EDT4,M3.2.0/02:00:00,M11.1.0/02:00:00" );     Eastern
 *    tzsetchar( "CST6CDT5,M3.2.0/02:00:00,M11.1.0/02:00:00" );     Central
 *    tzsetchar( "MST7MDT6,M3.2.0/02:00:00,M11.1.0/02:00:00" );     Mountain
 *    tzsetchar( "MST7" );                                          Arizona
 *    tzsetchar( "PST8PDT7,M3.2.0/02:00:00,M11.1.0/02:00:00" );     Pacific
 *    tzsetchar( "AKST9AKDT8,M3.2.0/02:00:00,M11.1.0/02:00:00" );   Alaska
 *    tzsetchar( "HST10" );                                         Hawaii
 *
 * Effective 2007, the U.S. starts daylight savings time on the second Sunday of
 * March at 2:00 AM and ends on the first Sunday of November at 2:00 AM.  The
 * starting and ending date/times for daylight savings time can be omitted from
 * the string since these rules are used by default.
 */
 
void tzsetchar(const char *tzenv);
 
#endif /* _NB_TIME_H */