211 lines
7.5 KiB
C
211 lines
7.5 KiB
C
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#ifndef __TSCONFIG_H
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#define __TSCONFIG_H
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#ifndef BASEONLY
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#define BASEONLY 0
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#endif
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//note to builders: the VERBOSE (and PING/P5_DEBUG/TESTHILO/CHICO/NOVELL, etc)
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// should be commented out for test & release builds!
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//#define VERBOSE //for potentially interesting messages to Doug & Arnold (developers)
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//#define TAPI //for using TAPI (won't work without TAPI32.DLL) - not done
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//#define NOVELL //for playing around with time from Netware (won't work without two DLLs)
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//#define CHICO //for trying to make things work on Windows 95 (if so, compile m ust be on x86)
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//#define PING //for testing Internet delay to NIST, uses ICMP
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//#define ENUM //enumerates all timesources on the network (don't include)
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//#define PERF //for using QueryPerformanceFrequency/Counter
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//#define P5_DEBUG //for toying around with Pentium's RDTSC instruction (10ns co unter)
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//#define TESTHILO //loops so that GC-100x sub-tenths (et al) can be compared to bc620AT and adjusted
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//#define AEC //for AEC-BOX code (doesn't find BREAK reliably, so not normally b uilt)
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// #define TRUETIME //for TrueTime format, not tested yet
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#define KENR //for CMOS
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#ifdef P5_DEBUG
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#define rdtsc __asm __emit 0x0F __asm __emit 0x31 //the RDTSC instruction
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DWORD hi32, lo32; //where we'll put edx & eax
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DWORD hi32temp, lo32temp;
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#define P5START __asm {\
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__asm push edx\
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rdtsc\
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__asm mov hi32temp,edx\
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__asm pop edx\
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__asm mov lo32temp,eax\
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}
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#define P5END __asm {\
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__asm push edx\
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rdtsc\
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__asm mov hi32,edx\
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__asm pop edx\
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__asm mov lo32,eax\
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}\
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printf("66MHz RDTSC diff=%.7fs\n",((float)hi32*65536*65536+lo32-((float)hi32temp*65536*65536+lo32temp))*1/66666666.7);\
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printf("166MHz RDTSC diff=%.7fs\n",((float)hi32*65536*65536+lo32-((float)hi32temp*65536*65536+lo32temp))*1/166666666.7);//display
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#else //if not P5_DEBUG, we want these to be blank
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#define P5START
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#define P5END
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#endif
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#define rollover() if (++nt.wSecond >59) {nt.wSecond=0; if (++nt.wMinute >59) {nt.wMinute=0; if (++nt.wHour>23) fTimeFailed = TRUE;}}
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//note unfortunately the above rollover routine will skip any leap second, but i t would be so rare anyway...
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#define MAXTYPE 32 // please maintain this
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#define NZ 31 // for New Nealand
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#define RCC 30//for Radiocode Clocks MSF, etc
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#define CMOS 29//for CMOS RTC
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#define TTPC16 28//for board level PC-SG2
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#define PC03XT 27//for old board from Bancomm
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#define TTK 26//for Kinemetrics style
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#define TTTL3 25//for TL-3 WWV
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#define MOBATIME 24//for IF482 Mobaline/RS232 DCF77 receiver
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#define PCLTC 23//for AEC PC-LTC/IOR (what about VITC?)
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#define AECBOX 22//AEC-BOX 1/2/10/20 for VITC, etc
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#define AMDAT 21//for ADC-60 MSF/DCF77 receiver
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#ifdef NOVELL
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#define NETWARE 20
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#endif
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#define HP 19 //for 58503A Time and Frequency Reference Receiver or 59551A - not tested well
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#define ATOMIC 18 //for 1PPS only
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#define NMEA 17
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#define SPECTRACOM 16
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#define BC630AT 15
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#define NTP 14
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#define MOTOROLA 13
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#define ROCKWELL 12
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#define TRIMBLE 11
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#define EUROPE 10
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#define COMPUTIME 9
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#define NRCBBC 8
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#define BC620AT 7
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#define GC1001 6
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#define GC1000 5
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#define USNO 4
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#define NISTACTS 3
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#define INTERNET 2
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//
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// N.B. The order of the following two must remain as is and these must be the
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// lowest numbered types. So keepa ya hands offa this.
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//
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#define PRIMARY 1
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#define SECONDARY 0
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#define DEFAULT_TYPE 0xFFFF
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#define SERVICE 1
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#define ANALYSIS 2
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#if 1
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#define LOCAL FALSE
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#define MODEM FALSE
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#define RECEIVER FALSE
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#else
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#define LOCAL (type==GC1000)||((type==BC620AT)&&bclocal)||(type==COMPUTIME)||(uselocal)||(type==AMDAT)||(type==MOBATIME)||(type==CMOS)
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#define MODEM (type==NISTACTS)||(type==USNO)||(type==NRCBBC)||(type==EUROPE)||(type==COMPUTIME)||(type==NZ)
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#define RECEIVER (type==SPECTRACOM)||(type==HP)||(type==MOTOROLA)||(type==GC1000)||(type==GC1001)||(type==ROCKWELL)||(type==TRIMBLE)||(type==AMDAT)||(type==NMEA)||(type==AECBOX)||(type==MOBATIME)||(type==TTTL3)||(type==RCC)||(type==TTK)
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#endif
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#define NETWORKTYPE(type) \
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((type == NTP) || (type == PRIMARY) || (type == SECONDARY))
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#define JITTER_LIMIT 50
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#define NextSkewX(x) x++
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#define ModSkew(x) (x % SKEWHISTORYSIZE)
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#define SECTION TEXT("timeserv")
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#define PROFILE TEXT("timeserv.ini")
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#define DEFAULT(x) x.element[0].key
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#define CLUSTER_PERIOD 0xFFFC
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#define BIDAILY_PERIOD 0xFFFF
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#define TRIDAILY_PERIOD 0xFFFE
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#define WEEKLY_PERIOD 0xFFFD
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#define SPECIAL_PERIOD_FLOOR 0xFFFC
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#if BASEONLY == 0
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#define LegalType(x) (x < MAXTYPE)
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#else
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#define LegalType(x) ((x == PRIMARY) \
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|| \
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(x == SECONDARY) \
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(x == NTP))
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#endif
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#define MAX_THREADS_IN_SERVER 8
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#define TSKEY TEXT("SYSTEM\\CurrentControlSet\\Services\\TimeServ\\Parameters")
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#define SECOND_TICKS (1000L)
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#define MINUTE_TICKS (60 * SECOND_TICKS)
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#define HOUR_TICKS (60 * MINUTE_TICKS)
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#define DAY_TICKS (24 * HOUR_TICKS)
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#define MAXBACKSLEW (3 * MINUTE_TICKS) // max back correction allowed
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#define CLUSTERSHORTINTERVAL (45 * MINUTE_TICKS)
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#define CLUSTERLONGHOURS (8)
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#define CLUSTERLONGINTERVAL (CLUSTERLONGHOURS * HOUR_TICKS)
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//
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// ERRORPART is the minimum contribution that the inherent clock frequency
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// is allowed to introduce. This is used as a multiplier of the clock
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// frequency to be the floor for the clock error to which a skew correction
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// can be applied. In other words, if F is the number of ms per clock tick,
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// then the minimum clockerror that can be used is:
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// F * 2 * ERRORPART
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// The 2 is used to compensate for two clocks.
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//
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// If you change the value, please update the following explanation:
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//
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// The number 7 was chosen to give the best resolution for the "cluster"
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// mode. In this mode, we wish to do a "quick", around 3 hours, slew analysis
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// to ensure that the clocks are reasonably close. The value 7 means
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// that a three hour sample must produce an error > 140 ms in order for
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// skew correction to happen. This is the equivalent of almost 1.2 secs/day
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// of error. Then we wish to lapse into a "long" cycle, namely 8 hours,
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// before sampling. A 1.2 sec/day error sampled each 8 hours allows for
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// 400 ms of observed error, or just within the bounds of 1/2 sec of skew
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// among the cluster systems. Using 7 means we are tolerating 1 part in
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// 7 of error, or around 15%. It's not great, but it's probably good
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// enough.\
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//
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// Note also that 140 is very close to 1/2 of the minimum clock correction
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// applied over 8 hours. The correction of 1 part is about 296 ms over
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// 8 hours. 1/2 of that is about 148 ms. So, using 7 not only provides
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// a good management of measurement error, it also is very close
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// to the minimum skew correction it makes sense to apply. What this
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// says is that in a cycle of 8 hours or more, the filter based on
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// ERRORPART is probably unnecessary, hence it exists principally
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// for catching errors over smaller measurement intervals. And that
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// is the intent.
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//
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#define ERRORPART 7
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#define ERRORMINIMUM(x) (x * 2 * ERRORPART)
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//
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// N.B. Another factor to consider is that one tick of the system clock, or
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// 100 ns, adjustment produces a change of 864 ms/day. So, in principle,
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// any adjustement for a skew of less than 864 ms a day is unstable and will
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// produce precesion. Of course, by changing the adjustment periodically,
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// it is possible to get two clocks that disagree by less than 864 ms/day
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// to come into better agreement, but it requires a constant adjustment
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// of at least one of the clocks.
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//
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#define MAXSKEWCORRECT 30000 // max ms/day error we will correct.
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#define MAXERRORTOALLOW 500 // keep it within this
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#endif // TSCONGIF
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