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Annotation of os2sdk/include/infoseg.h, revision 1.1.1.1

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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