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Annotation of os2sdk/include/infoseg.h, revision 1.1

1.1     ! root        1: /*
        !             2:  *      InfoSeg Data Structures
        !             3:  */
        !             4: 
        !             5: /*
        !             6:  * The structure below defines the content and organization of the system
        !             7:  * information segment (InfoSeg).  The actual table is statically defined in
        !             8:  * SDATA.ASM and the read-only ring 3 selector is defined in the GDT table
        !             9:  * in the same file.  Ring 0, read/write access is obtained by the clock
        !            10:  * device driver using the DevHlp GetDOSVar function.
        !            11:  */
        !            12: 
        !            13: struct  InfoSegGDT
        !            14: {
        !            15: 
        !            16: /* Time */
        !            17: 
        !            18: unsigned long   BigTime ;       /* Time from 1-1-1970 in seconds */
        !            19: unsigned long   MsCount ;       /* Freerunning milliseconds counter */
        !            20: unsigned char   HrsTime ;       /* Hours */
        !            21: unsigned char   MinTime ;       /* Minutes */
        !            22: unsigned char   SecTime ;       /* Seconds */
        !            23: unsigned char   HunTime ;       /* Hundredths of seconds */
        !            24: unsigned short  TimeZone ;      /* Timezone in min from GMT (Set to EST) */
        !            25: unsigned short  ClkIntrvl ;     /* Timer interval (units=0.0001 secs) */
        !            26: 
        !            27: /* Date */
        !            28: 
        !            29: unsigned char   DayDate ;       /* Day-of-month (1-31) */
        !            30: unsigned char   MonDate ;       /* Month (1-12) */
        !            31: unsigned short  YrsDate ;       /* Year (>= 1980) */
        !            32: unsigned char   DOWDate ;       /* Day-of-week (1-1-80 = Tues = 3) */
        !            33: 
        !            34: /* Version */
        !            35: 
        !            36: unsigned char   VerMajor ;      /* Major version number */
        !            37: unsigned char   VerMinor ;      /* Minor version number */
        !            38: unsigned char   RevLettr ;      /* Revision letter */
        !            39: 
        !            40: /* System Status */
        !            41: 
        !            42: unsigned char   CurScrnGrp ;    /* Current screen group */
        !            43: unsigned char   MaxScrnGrp ;    /* Maximum number of screen groups */
        !            44: unsigned char   HugeShfCnt ;    /* Shift count for huge segments */
        !            45: unsigned char   ProtMdOnly ;    /* Protect-mode-only indicator */
        !            46: unsigned short  FgndPID ;       /* Foreground process ID */
        !            47: 
        !            48: /* Scheduler Parms */
        !            49: 
        !            50: unsigned char   Dynamic ;       /* Dynamic variation flag (1=enabled) */
        !            51: unsigned char   MaxWait ;       /* Maxwait (seconds) */
        !            52: unsigned short  MinSlice ;      /* Minimum timeslice (milliseconds) */
        !            53: unsigned short  MaxSlice ;      /* Maximum timeslice (milliseconds) */
        !            54: 
        !            55: /* Boot Drive */
        !            56: 
        !            57: unsigned short  BootDrv ;       /* Drive from which system was booted */
        !            58: 
        !            59: /* RAS Major Event Code Table */
        !            60: 
        !            61: unsigned char   mec_table[32];  /* Table of RAS Major Event Codes (MECs) */
        !            62: 
        !            63: } ;
        !            64: 
        !            65: 
        !            66: 
        !            67: /*
        !            68:  *      InfoSeg LDT Data Segment Structure
        !            69:  *
        !            70:  * The structure below defines the content and organization of the system
        !            71:  * information in a special per-process segment to be accessable by the
        !            72:  * process through the LDT (read-only).
        !            73:  */
        !            74: 
        !            75: struct InfoSegLDT
        !            76: {
        !            77: 
        !            78: unsigned short  CurProcID ;     /* Current process ID */
        !            79: unsigned short  ParProcID ;     /* Process ID of parent */
        !            80: unsigned short  CurThrdPri ;    /* Current thread priority */
        !            81: unsigned short  CurThrdID ;     /* Current thread ID */
        !            82: unsigned short  CurScrnGrp ;    /* Screengroup */
        !            83: unsigned short  SubScrnGrp ;    /* Subscreen group */
        !            84: unsigned short  Fgnd ;          /* Current process is in foreground */
        !            85: 
        !            86: } ;

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