Leaked source code of windows server 2003
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//============== DAE: OS/2 Database Access Engine ===================
//============== daeconst.h: Global System Constants ===================
#define cpgDatabaseMin 16
#define cpgDatabaseMax (1UL << 19)
#define pgnoSystemRoot ((PGNO) 1)
#define itagSystemRoot 0
#define szSystemDatabase "system.mdb"
#define szTempDBFileName "temp.mdb"
#define szTempFile "temp.tmp"
/* number of pages of system root FDP primary extent */#define cpgSystemPrimary ((CPG) 1)
/* initial temporary file allocation */#define cpgTempFile ((CPG) 1)
/* discontinuity measurement unit
/**/#define cpgDiscont 16
/* default density
/**/#define ulDefaultDensity 80 // 80% density
#define ulFILEDensityLeast 20 // 20% density
#define ulFILEDensityMost 100 // 100% density
#define dbidTemp ((DBID) 0)
#define dbidSystemDatabase ((DBID) 1)
#define dbidUserMin ((DBID) 1)
#define dbidMin ((DBID) 0)
#define dbidUserMax ((DBID) 67)
#define dbidMax dbidUserMax
/* number of buffer hash table entries
/* should be prime
/**/#define ipbfMax 8191
/* vertical split threshold
/**/#define cbVSplitThreshold 400
/* Engine OBJIDs:
/*
/* 0..0x10000000 reserved for engine use, divided as follows:
/*
/* 0x00000000..0x0000FFFF reserved for TBLIDs under RED
/* 0x00000000..0x0EFFFFFF reserved for TBLIDs under BLUE
/* 0x0F000000..0x0FFFFFFF reserved for container IDs
/* 0x10000000 reserved for ObjectId of DbObject
/*
/* Client OBJIDs begin at 0x10000001 and go up from there.
/**/
#define objidNil ((OBJID) 0x00000000)
#define objidRoot ((OBJID) 0x0F000000)
#define objidTblContainer ((OBJID) 0x0F000001)
#define objidDbContainer ((OBJID) 0x0F000002)
#define objidRcContainer ((OBJID) 0x0F000003)
#define objidDbObject ((OBJID) 0x10000000)
/* Magic number used in database root node for integrity checking
/**/#define ulDAEMagic 0x89abcdef
#define ulDAEVersion 0x00000001
#define ulDAEPrevVersion 0x00000000
#define szVerbose "BLUEVERBOSE"
#define szNull ""
/* transaction level limits.
/**/#define levelMax ((LEVEL)10) // all level < 10
#define levelMost ((LEVEL)9) // max for engine
#define levelUserMost ((LEVEL)7) // max for user
#define levelMin ((LEVEL)0)
/* Start and max waiting period for WaitTillOldest
/**/#define ulStartTimeOutPeriod 20
#define ulMaxTimeOutPeriod 60000
/* default resource allocation
/**/#define cDBOpenDefault 100
#define cbucketLowerThreshold 8
#define cbufThresholdLowDefault 20
#define cbufThresholdHighDefault 80
#define cpibDefault 10
#define cbgcbDefault 4
#define cfucbDefault 300
#define cfcbDefault 300
#define cscbDefault 20
#define cidbDefault cfcbDefault
#define cbufDefault 500
#define clgsecBufDefault 21
#define clgsecGenDefault 250
#define clgsecFTHDefault 10
#define cbucketDefault 64
#define lWaitLogFlushDefault 15
#define lLogFlushPeriodDefault 45
#define lLGCheckpointPeriodDefault 10
//#define lLGCheckpointPeriodDefault 100
#define lLGWaitingUserMaxDefault 3
#define lPageFragmentDefault 8
#define cdabDefault 100
#define lBufLRUKCorrelationIntervalDefault 0
#define lBufBatchIOMaxDefault 64
#define lPageReadAheadMaxDefault 4
#define lAsynchIOMaxDefault 64
/* resource relationships for derived resources
/**/#define lCSRPerFUCB 2
/* system resource requirements
/**/#define cpibSystem 3
#define cbucketSystem 2
/* vertical split minimum in non-FDP page.
/**/#define cbVSplitMin 100
/* code page constants.
/**/#define usUniCodePage 1200 /* code page for Unicode strings */
#define usEnglishCodePage 1252 /* code page for English */
/* length of modified page list
/**/#define cmpeMax 8192
/* idle processing constants
/**/#define icallIdleBMCleanMax cmpeMax
/* wait time for latch/crit conflicts
/**/#define cmsecWaitGeneric 100
#define cmsecWaitWriteLatch 10
#define cmsecWaitLogFlush 1
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