#define SEG_GETTABLE        0x0002
#define SEG_DISCARDABLE     0x0004

#endif /* common INCL_DOSMEMMGR */

#ifdef INCL_DOSMEMMGR

USHORT APIENTRY DosAllocHuge(USHORT, USHORT, PSEL, USHORT, USHORT);
USHORT APIENTRY DosReallocHuge(USHORT, USHORT, SEL);
USHORT APIENTRY DosGetHugeShift(PUSHORT);

USHORT APIENTRY DosAllocShrSeg(USHORT, PSZ, PSEL);

USHORT APIENTRY DosLockSeg(SEL);
USHORT APIENTRY DosUnlockSeg(SEL);

USHORT APIENTRY DosGetShrSeg(PSZ, PSEL);

USHORT APIENTRY DosMemAvail(PULONG);
USHORT APIENTRY DosCreateCSAlias(SEL, PSEL);

USHORT APIENTRY DosSubAlloc(SEL, PUSHORT, USHORT);
USHORT APIENTRY DosSubFree(SEL, USHORT, USHORT);
USHORT APIENTRY DosSubSet(SEL, USHORT, USHORT);

#endif /* INCL_DOSMEMMGR */

#if (defined(INCL_DOSSEMAPHORES) | !defined(INCL_NOCOMMON))

/*** Semaphore support */

USHORT APIENTRY DosSemClear(HSEM);
USHORT APIENTRY DosSemSet(HSEM);
USHORT APIENTRY DosSemWait(HSEM, LONG);
USHORT APIENTRY DosSemSetWait(HSEM, LONG);
USHORT APIENTRY DosSemRequest(HSEM, LONG);

#endif /* common INCL_DOSSEMAPHORES */

#ifdef INCL_DOSSEMAPHORES

typedef LHANDLE HSYSSEM;          /* hssm */
typedef HSYSSEM FAR *PHSYSSEM;

USHORT APIENTRY DosCreateSem(USHORT, PHSYSSEM, PSZ);

#define CSEM_PRIVATE    0
#define CSEM_PUBLIC     1

USHORT APIENTRY DosOpenSem(PHSEM, PSZ);
USHORT APIENTRY DosCloseSem(HSEM);

typedef struct _MUXSEM {        /* mxs */
    USHORT zero;
    HSEM   hsem;
} MUXSEM;
typedef MUXSEM FAR *PMUXSEM;

typedef struct _MUXSEMLIST {    /* mxsl */
    USHORT  cmxs;
    MUXSEM  amxs[16];
} MUXSEMLIST;
typedef MUXSEMLIST FAR *PMUXSEMLIST;

/*
 * Since a MUXSEMLIST structure is actually a variable length
 * structure, the following macro may be used to define a MUXSEMLIST
 * structure having size elements, named "name".
 */
#define DEFINEMUXSEMLIST(name, size) \
    struct {                         \
        USHORT cmxs;                 \
        MUXSEM amxs[size];           \
    } name;

/*
 * This function actually takes a far pointer to a MUXSEMLIST structure
 * as its second parameter, but in order to allow its use with the
 * DEFINEMUXSEMLIST macro, it is declared here as PVOID.
 */
USHORT APIENTRY DosMuxSemWait(PUSHORT, PVOID, LONG);

#endif /* INCL_DOSSEMAPHORES */

#if (defined(INCL_DOSDATETIME) | !defined(INCL_NOCOMMON))

/*** Time support */

typedef struct _DATETIME {    /* date */
    UCHAR   hours;
    UCHAR   minutes;
    UCHAR   seconds;
    UCHAR   hundredths;
    UCHAR   day;
    UCHAR   month;
    USHORT  year;
    SHORT   timezone;
    UCHAR   weekday;
} DATETIME;
typedef DATETIME FAR *PDATETIME;

USHORT APIENTRY DosGetDateTime(PDATETIME);
USHORT APIENTRY DosSetDateTime(PDATETIME);

#endif /* common INCL_DOSDATETIME */

#ifdef INCL_DOSDATETIME

typedef SHANDLE HTIMER;
typedef HTIMER FAR *PHTIMER;

USHORT APIENTRY DosTimerAsync(ULONG, HSEM, PHTIMER);
USHORT APIENTRY DosTimerStart(ULONG, HSEM, PHTIMER);
USHORT APIENTRY DosTimerStop(HTIMER);

#endif /* INCL_DOSDATETIME */


/*** Module manager */

#ifdef INCL_DOSMODULEMGR

USHORT APIENTRY DosLoadModule(PSZ, USHORT, PSZ, PHMODULE);
USHORT APIENTRY DosFreeModule(HMODULE);
USHORT APIENTRY DosGetProcAddr(HMODULE, PSZ, PPFN);
USHORT APIENTRY DosGetModHandle(PSZ, PHMODULE);
USHORT APIENTRY DosGetModName(HMODULE, USHORT, PCHAR);

#endif /* INCL_DOSMODULEMGR */


/*** NLS Support */

#ifdef INCL_DOSNLS

typedef struct _COUNTRYCODE { /* ctryc */
    USHORT country;
    USHORT codepage;
} COUNTRYCODE;
typedef COUNTRYCODE FAR *PCOUNTRYCODE;

typedef struct _COUNTRYINFO { /* ctryi */
    USHORT country;
    USHORT codepage;
    USHORT fsDateFmt;
    CHAR   szCurrency[5];
    CHAR   szThousandsSeparator[2];
    CHAR   szDecimal[2];
    CHAR   szDateSeparator[2];
    CHAR   szTimeSeparator[2];
    UCHAR  fsCurrencyFmt;
    UCHAR  cDecimalPlace;
    UCHAR  fsTimeFmt;
    USHORT abReserved1[2];
    CHAR   szDataSeparator[2];
    USHORT abReserved2[5];
} COUNTRYINFO;
typedef COUNTRYINFO FAR *PCOUNTRYINFO;

USHORT APIENTRY DosGetCtryInfo(USHORT, PCOUNTRYCODE, PCOUNTRYINFO, PUSHORT);
USHORT APIENTRY DosGetDBCSEv(USHORT, PCOUNTRYCODE, PCHAR);
USHORT APIENTRY DosCaseMap(USHORT, PCOUNTRYCODE, PCHAR);
USHORT APIENTRY DosGetCollate(USHORT, PCOUNTRYCODE, PCHAR, PUSHORT);
USHORT APIENTRY DosGetCp(USHORT, PUSHORT, PUSHORT);
USHORT APIENTRY DosSetCp(USHORT, USHORT);

#endif /* INCL_DOSNLS */


/*** Signal support */

#ifdef INCL_DOSSIGNALS

/* Signal Numbers for DosSetSigHandler  */

#define SIG_CTRLC           1       /* Control C            */
#define SIG_BROKENPIPE      2       /* Broken Pipe          */
#define SIG_KILLPROCESS     3       /* Program Termination  */
#define SIG_CTRLBREAK       4       /* Control Break        */
#define SIG_PFLG_A          5       /* Process Flag A       */
#define SIG_PFLG_B          6       /* Process Flag B       */
#define SIG_PFLG_C          7       /* Process Flag C       */
#define SIG_CSIGNALS        8       /* number of signals plus one */

/* Flag Numbers for DosFlagProcess      */

#define PFLG_A              0       /* Process Flag A       */
#define PFLG_B              1       /* Process Flag B       */
#define PFLG_C              2       /* Process Flag C       */

/* Signal actions */

#define SIGA_KILL           0
#define SIGA_IGNORE         1
#define SIGA_ACCEPT         2
#define SIGA_ERROR          3
#define SIGA_ACKNOWLEDGE    4

/* DosHoldSignal constants */

#define HLDSIG_ENABLE       0
#define HLDSIG_DISABLE      1

/* DosFlagProcess codes */

#define FLGP_SUBTREE        0
#define FLGP_PID            1

typedef VOID (FAR PASCAL *PFNSIGHANDLER)(USHORT, USHORT);

USHORT APIENTRY DosSetSigHandler(PFNSIGHANDLER, PFNSIGHANDLER FAR *, PUSHORT, USHORT, USHORT);
USHORT APIENTRY DosFlagProcess(PID, USHORT, USHORT, USHORT);
USHORT APIENTRY DosHoldSignal(USHORT);
USHORT APIENTRY DosSendSignal(USHORT, USHORT);

#endif /* INCL_DOSSIGNALS */


/*** Monitor support */

#ifdef INCL_DOSMONITORS

typedef SHANDLE HMONITOR;    /* hmon */
typedef HMONITOR FAR *PHMONITOR;

USHORT APIENTRY DosMonOpen(PSZ, PHMONITOR);
USHORT APIENTRY DosMonClose(HMONITOR);
USHORT APIENTRY DosMonReg(HMONITOR, PBYTE, PBYTE, USHORT, USHORT);
USHORT APIENTRY DosMonRead(PBYTE, USHORT, PBYTE, PUSHORT);
USHORT APIENTRY DosMonWrite(PBYTE, PBYTE, USHORT);

#endif /* INCL_DOSMONITORS */


/*** Pipe and queue support */

#ifdef INCL_DOSQUEUES

typedef SHANDLE HQUEUE;  /* hq */
typedef HQUEUE FAR *PHQUEUE;

USHORT APIENTRY DosMakePipe(PHFILE, PHFILE, USHORT);
USHORT APIENTRY DosCloseQueue(HQUEUE);
USHORT APIENTRY DosCreateQueue(PHQUEUE, USHORT, PSZ);
USHORT APIENTRY DosOpenQueue(PUSHORT, PHQUEUE, PSZ);
USHORT APIENTRY DosPeekQueue(HQUEUE, PULONG, PUSHORT, PULONG, PUSHORT, USHORT, PBYTE, HSEM);
USHORT APIENTRY DosPurgeQueue(HQUEUE);
USHORT APIENTRY DosQueryQueue(HQUEUE, PUSHORT);
USHORT APIENTRY DosReadQueue(HQUEUE, PULONG, PUSHORT, PULONG, USHORT, USHORT, PBYTE, HSEM);
USHORT APIENTRY DosWriteQueue(HQUEUE, USHORT, USHORT, PBYTE, USHORT);

#endif /* INCL_DOSQUEUES */


/*** Miscellaneous functions */

#ifdef INCL_DOSMISC

USHORT APIENTRY DosError(USHORT);
USHORT APIENTRY DosSetVec(USHORT, PFN, PPFN);
USHORT APIENTRY DosGetMessage(PCHAR FAR *, USHORT, PCHAR, USHORT, USHORT, PSZ, PUSHORT);
USHORT APIENTRY DosErrClass(USHORT, PUSHORT, PUSHORT, PUSHORT);
USHORT APIENTRY DosInsMessage(PCHAR FAR *, USHORT, PSZ, USHORT, PCHAR, USHORT, PUSHORT);
USHORT APIENTRY DosPutMessage(HFILE, USHORT, PCHAR);
USHORT APIENTRY DosGetEnv(PUSHORT, PUSHORT);
USHORT APIENTRY DosScanEnv(PSZ, PSZ  FAR *);
USHORT APIENTRY DosSearchPath(USHORT, PSZ, PSZ, PBYTE, USHORT);
USHORT APIENTRY DosGetVersion(PUSHORT);
USHORT APIENTRY DosGetMachineMode(PBYTE);

#endif /* INCL_DOSMISC */


/*** Session manager support */

#ifdef INCL_DOSSESMGR

typedef struct _STARTDATA {   /* stdata */
    USHORT cb;
    USHORT Related;
    USHORT FgBg;
    USHORT TraceOpt;
    PSZ    PgmTitle;
    PSZ    PgmName;
    PBYTE  PgmInputs;
    PBYTE  TermQ;
} STARTDATA;
typedef STARTDATA FAR *PSTARTDATA;

typedef struct _STATUSDATA { /* stsdata */
    USHORT cb;
    USHORT SelectInd;
    USHORT BindInd;
} STATUSDATA;
typedef STATUSDATA FAR *PSTATUSDATA;

USHORT APIENTRY DosStartSession(PSTARTDATA, PUSHORT, PUSHORT);
USHORT APIENTRY DosSetSession(USHORT, PSTATUSDATA);
USHORT APIENTRY DosSelectSession(USHORT, ULONG);
USHORT APIENTRY DosStopSession(USHORT, USHORT, ULONG);

#endif /* INCL_DOSSESMGR */


/*** Device support */

#ifdef INCL_DOSDEVICES

USHORT APIENTRY DosDevConfig(PVOID, USHORT, USHORT);
USHORT APIENTRY DosDevIOCtl(PVOID, PVOID, USHORT, USHORT, USHORT);
USHORT APIENTRY DosSystemService(USHORT, PVOID, PVOID);

USHORT APIENTRY DosCLIAccess(VOID);
USHORT APIENTRY DosPortAccess(USHORT, USHORT, USHORT, USHORT);
USHORT APIENTRY DosPhysicalDisk(USHORT, PBYTE, USHORT, PBYTE, USHORT);

#endif /* INCL_DOSDEVICES */