char *InitSys( void )
{
SEL sel_global;
SEL sel_local;
USHORT rc;
if( MaxBaud == 0 ) {
MaxBaud = 3; /* 19200 -- see table */
}
rc = DosGetInfoSeg( &sel_global, &sel_local );
if( rc != 0 ) return( TRP_OS2_no_info );
GInfoSeg = MK_FP( sel_global, 0 );
LInfoSeg = MK_FP( sel_local, 0 );
rc = DosSetPrty( PRTYS_THREAD, PRTYC_TIMECRITICAL,
0, LInfoSeg->tidCurrent );
if( rc != 0 ) return( TRP_OS2_cannot_set_thread_priority );
ReadBuffAdd = 0;
ReadBuffRemove = 0;
ReadSemaphore = 0;
rc = DosCreateThread( Reader, &ReaderId, ReaderStack+READER_STACKSIZE );
if( rc != 0 ) return( TRP_OS2_cannot_create_helper_thread );
rc = DosSetPrty( PRTYS_THREAD, PRTYC_TIMECRITICAL, 0, ReaderId );
if( rc != 0 ) return( TRP_OS2_cannot_set_thread_priority );
CurrentBaud = -1;
return( NULL );
}
void runsys()
{
word apt, i;
procaddr father;
for (i = 0; i < MAXPROCESS; i++ ) /* initialize process descriptors */
{
process[ i ].used = FALSE; /* not used */
process[ i ].mark = -1; /* initial mark for processes */
process[ i ].M = NULL; /* memory not allocated */
process[ i ].hash = NULL;
}
process[ 0 ].M = M; /* always contains code */
dispoff = VIRTSC-(lastprot+1); /* DISPLAY offset in process object */
disp2off = dispoff-(lastprot+1); /* indirect DISPLAY offset */
ready = qinit(); /* initialize Round-Robin queue */
ranset(); /* init pseudo-random no. generator */
#if OS2
{
SEL gsel, lsel;
DosGetInfoSeg(&gsel, &lsel);
ginf = MAKEPGINFOSEG(gsel);
}
#endif
if (!remote) /* create main process */
{
father.node = 0; /* dummy DL for generated process */
father.pix = 0;
father.mark = 0;
thispix = 0; /* current process index */
thisp = &process[ thispix ]; /* current process descr pointer */
initprocess((word) 0, (word) MAINBLOCK, &father);
mainprog = thisp->prochead; /* am of main */
c1 = thisp->c1; /* pointers to current object */
c2 = thisp->c2;
ic = thisp->ic; /* instruction counter */
param = thisp->param; /* parameter vector */
apt = mainprog+M[ mainprog ]; /* LWA+1 of main */
display = apt+dispoff; /* DISPLAY in main */
display2 = apt+disp2off; /* indirect DISPLAY in main */
mnoff = 2; /* offset of variable mainprog */
storevirt(thisp->procref, mainprog+mnoff); /* init variable main */
M[ apt+STATSL ]++; /* flag main included in SL chain */
thisp->status = STOPPED;
activate(thispix); /* activate main process */
}
else /* remote */
{
thispix = 1; /* a dirty trick: set junk current */
thisp = &process[ thispix ]; /* process for first transfer() */
} /* (must save 'context' somewhere) */
#if DLINK
net_attention();
#endif
}
char *InitSys()
{
SEL global;
SEL local;
int i;
DosGetInfoSeg( &global, &local );
GInfoSeg = MK_FP( global, 0 );
PortsFound = 0;
for( i = 0; i < NUM_ELTS( PortTest ); ++i ) {
AccessPorts( PortTest[i], PortTest[i] );
if( CheckForPort( i, 0x55 ) && CheckForPort( i, 0xaa ) ) {
PortAddress[ PortsFound++ ] = PortTest[ i ];
}
FreePorts( PortTest[i], PortTest[i] );
}
return( 0 );
}
void get_config_files( void )
/***************************/
{
int drive_name;
#ifdef __OS2__
SEL gbl_seg;
SEL lcl_seg;
PGINFOSEG gbl;
DosGetInfoSeg( &gbl_seg, &lcl_seg );
gbl = MK_FP( gbl_seg, 0 );
techoutput( "OS/2 Version %d.%d%c\n", gbl->uchMajorVersion,
gbl->uchMinorVersion, gbl->chRevisionLetter);
drive_name = gbl->bootdrive + 'A' - 1;
#else
union REGS regs;
char *comspec;
regs.h.ah = 0x30;
intdos( ®s, ®s );
techoutput( "DOS Version %d.%d\n", regs.h.al, regs.h.ah );
/* Get Drive that user booted off of */
if( regs.h.al >= 0x04 ) {
regs.w.ax = 0x3305;
intdos( ®s, ®s );
drive_name = regs.h.dl + 'A' - 1;
} else {
comspec = getenv( "COMSPEC" );
if( comspec != NULL ) {
drive_name = toupper( *comspec );
} else {
return;
}
}
#endif
dump_files( drive_name );
}
int _OS2Main( char far *stklow, char far * stktop,
unsigned envseg, unsigned cmdoff )
/*************************************************/
{
cmdoff = cmdoff; /* supress warnings */
envseg = envseg;
stktop = stktop;
/* set up global variables */
#if defined(__SW_BD)
_STACKTOP = 0;
_curbrk = _dynend = (unsigned)&end;
stklow = NULL;
#else
_STACKTOP = FP_OFF( stktop );
_curbrk = _dynend = _STACKTOP;
#endif
DosGetHugeShift( (PUSHORT)&_HShift );
DosGetMachineMode( (PBYTE)&_osmode );
{
unsigned short version;
DosGetVersion( (PUSHORT)&version );
_osmajor = version >> 8;
_osminor = version & 0xff;
}
#if defined(__SW_BD)
_LpPgmName = "";
_LpCmdLine = "";
#else
/* copy progname and arguments to bottom of stack */
{
char far *src;
char far *pgmp;
src = MK_FP( envseg, cmdoff );
_LpPgmName = stklow;
/* back up from the ao: pointer to the eo: pointer (see OS/2 2.0 docs)*/
for( pgmp = src - 1; *--pgmp != '\0'; );
++pgmp;
while( *stklow++ = *pgmp++ );
while( *src ) ++src;
++src;
_LpCmdLine = stklow;
while( *stklow++ = *src++ );
}
#endif
#if defined(__SW_BM)
{
SEL globalseg;
SEL localseg;
DosGetInfoSeg( &globalseg, &localseg );
_threadid = MK_FP( localseg, offsetof( LINFOSEG, tidCurrent ) );
if( __InitThreadProcessing() == NULL )
__fatal_runtime_error( "Not enough memory", 1 );
#if defined(__SW_BD)
{
unsigned i;
unsigned j;
j = __MaxThreads;
for( i = 1; i <= j; i++ ) {
__SetupThreadProcessing( i );
}
}
#else
__SetupThreadProcessing( 1 );
#endif
_STACKLOW = (unsigned)stklow;
}
#else
_nothread = getpid();
_threadid = &_nothread;
_STACKLOW = (unsigned)stklow; /* set bottom of stack */
#endif
// { /* removed JBS 99/11/10 */
// // make sure the iomode array is of the proper length
// // this needs to be done before the InitRtns
// extern void __grow_iomode(int);
// if( _osmode == OS2_MODE ) {
// __grow_iomode( 100 );
// }
// }
__InitRtns( 255 );
#ifdef __SW_BD
{
int status;
status = setjmp( JmpBuff );
if( status == 0 ) return( _CMain() );
return( RetCode );
}
#else
return( _CMain() );
#endif
}
/*
* netinitancbs - init async ncbs
*
* inits semaphores etc in async ncb pool
*
*/
void
netinitancbs(void)
{
register struct ncb_a *ncbp; /* pointer to each ncb */
register int i; /* temp index */
#ifndef NT
int rc; /* return code */
union farptr global_seg; /* pointer to GDT info segment */
union farptr local_seg; /* pointer to LDT info segment */
char NEAR *sem_mask = "\\SEM\\NCB%05x.%03x";
#include "..\h\packon.h"
struct ldt_info_seg
{
int ldti_pid; /* current process id */
int ldti_ppid; /* parrent process id */
int ldti_priority; /* priority of current thread */
int ldti_thread; /* current thread id */
int ldti_screengrp; /* current screengroup */
int ldti_subscreengrp; /* current subscreengroup */
int ldti_forground; /* current process is in forground */
};
#include "..\h\packoff.h"
struct ldt_info_seg FAR *ldt_info_p;
char sem_name[20];
lockncbpool();
if (async_ncbs_inited)
{
unlockncbpool();
return;
}
rc = DosGetInfoSeg(
(PSEL) &global_seg.lp.lp_seg, /* addr to return segment value */
(PSEL) &local_seg.lp.lp_seg); /* addr to return segment value */
if (rc)
{
fprintf(stderr, "GETINFOSEG failed (%d)\n", rc);
exit ( rc );
}
local_seg.lp.lp_offset = 0;
ldt_info_p = (struct ldt_info_seg FAR *) local_seg.fp;
for (ncbp=&asyncncbs[0], i=0; ncbp < &asyncncbs[num_async_ncbs]; ncbp++, i++)
{
ncbp->ncb_status = NCB_FREE; /* starts out free */
sprintf(sem_name, sem_mask, ldt_info_p->ldti_pid, i);
#ifdef DEBUG1
printf("creating semaphore %s\n", sem_name);
#endif
rc = DosCreateSem(
(unsigned int) 1, /* non exclusive ownership of semaphore */
(PHSYSSEM) &ncbp->ncb_sem, /* place to return sem handle */
(char FAR *) &sem_name[0]); /* name for semaphore */
if (rc)
{
fprintf(stderr, "CREATESEM \"%s\" failed (%d)\n", sem_name, rc);
exit ( rc );
}
ncbp->ncb_sem_a = ncbp->ncb_sem; /* save away semaphore */
ncbp->ncb_seqno = 0L; /* none as yet */
#ifdef DEBUG1
printf("ncbp is 0x%x, semaphore handle is 0x%lx, saved handle is 0x%lx\n",
ncbp, ncbp->ncb_sem, ncbp->ncb_sem_a);
#endif
}
async_ncbs_inited = 1;
unlockncbpool();
#else
//
// NT Pool Initialization - Create pool locking semaphore
//
if (NULL == (async_ncb_pool_sem = CreateSemaphore ( NULL, 1, 1, NULL ) ) ) {
fprintf(stderr, "Semaphore create failed (%d)\n", GetLastError());
exit (GetLastError());
}
lockncbpool();
if (async_ncbs_inited) {
unlockncbpool();
return;
}
//
// Create an event for each NCB
//
for (ncbp=&asyncncbs[0], i=0; ncbp < &asyncncbs[num_async_ncbs]; ncbp++, i++) {
ncbp->ncb_status = NCB_FREE; /* starts out free */
if ( NULL == (ncbp->ncb_event = CreateEvent ( NULL,
TRUE, // manual reset
FALSE, // initially not signalled
NULL ) ) ) {
fprintf(stderr, "Create NCB event failed (%d)\n", GetLastError ());
exit ( GetLastError() );
}
ncbp->ncb_sem_a = ncbp->ncb_event; /* save away event handle */
ncbp->ncb_seqno = 0L; /* none as yet */
}
async_ncbs_inited = 1;
unlockncbpool();
#endif
}