bool Session( void )
{
unsigned req;
bool want_return;
for( ;; ) {
In[0].len = GetPacket();
In[0].ptr = GetPacketBuffPtr();
_DBG(("Session got request "));
req = TRP_REQUEST( In );
TRP_REQUEST( In ) &= ~0x80;
if( req & 0x80 ) {
req &= ~0x80;
want_return = FALSE;
} else {
want_return = TRUE;
}
switch( req ) {
case REQ_PROG_KILL:
_DBG(("REQ_KILL_PROG\n"));
AccTrap( TRUE );
return( TRUE );
default:
_DBG(("AccTrap\n"));
AccTrap( want_return );
_DBG(("Done AccTrap\n"));
break;
}
}
}
bool Session( void )
{
unsigned req;
bool want_return;
Out[0].len = sizeof( RWBuff );
Out[0].ptr = RWBuff;
for( ;; ) {
#ifdef __WINDOWS__
NothingToDo();
#endif
In[0].len = GetPacket();
In[0].ptr = GetPacketBuffPtr();
In_Mx_Ptr = &In[0];
Out_Mx_Ptr = &Out[0];
In_Mx_Num = 1;
Out_Mx_Num = 1;
req = TRP_REQUEST( In );
TRP_REQUEST( In ) &= ~0x80;
if( req & 0x80 ) {
req &= ~0x80;
want_return = false;
} else {
want_return = true;
}
switch( req ) {
case REQ_CONNECT:
if( !AccConnect() )
return( true );
break;
case REQ_DISCONNECT:
AccTrap( false );
return( true );
case REQ_SUSPEND:
AccTrap( false );
RemoteDisco();
for(;;) {
while( !RemoteConnect() )
;
if( !Session() )
break;
RemoteDisco();
}
break;
case REQ_RESUME:
AccTrap( false );
return( false );
case REQ_PROG_LOAD:
AccLoadProg();
break;
default:
AccTrap( want_return );
break;
}
}
}
static trap_retval DoTrapAccess( trap_elen num_in_mx, in_mx_entry_p mx_in, trap_elen num_out_mx, mx_entry_p mx_out )
{
uint_8 __far *msgptr;
unsigned_8 j;
struct {
mx_entry16 in;
mx_entry16 out;
unsigned_16 retlen;
} __far *callstruct;
unsigned len;
unsigned copy;
callstruct = (void __far *)PMData->parmarea;
msgptr = (void __far *)&callstruct[1];
callstruct->in.ptr.s.segment = RMData.segm.rm;
callstruct->in.ptr.s.offset = (unsigned)msgptr - (unsigned)PMData;
callstruct->in.len = 0;
for( j = 0; j < num_in_mx; ++j ) {
_fmemcpy( msgptr, mx_in[j].ptr, mx_in[j].len );
callstruct->in.len += mx_in[j].len;
msgptr += mx_in[j].len;
}
callstruct->out.len = 0;
if( mx_out != NULL ) {
callstruct->out.ptr.s.segment = RMData.segm.rm;
callstruct->out.ptr.s.offset = (unsigned)msgptr - (unsigned)PMData;
for( j = 0; j < num_out_mx; ++j ) {
callstruct->out.len += mx_out[j].len;
}
} else {
callstruct->out.ptr.a = 0;
}
GoToRealMode( RMTrapAccess );
if( callstruct->retlen == (unsigned_16)REQUEST_FAILED ) {
return( REQUEST_FAILED );
}
if( mx_out != NULL ) {
/* msgptr is pointing at the start of the output buffer */
j = 0;
for( len = callstruct->retlen; len != 0; len -= copy ) {
copy = len;
if( copy > mx_out[j].len )
copy = mx_out[j].len;
_fmemcpy( mx_out[j].ptr, msgptr, copy );
++j;
msgptr += copy;
}
} else {
callstruct->retlen = 0;
}
if( TRP_REQUEST( mx_in ) == REQ_CONNECT ) {
if( ( (connect_ret *)mx_out->ptr )->max_msg_size > MAX_MSG_SIZE ) {
( (connect_ret *)mx_out->ptr )->max_msg_size = MAX_MSG_SIZE;
}
}
return( callstruct->retlen );
}
static trap_elen DoAccess( void )
{
trap_elen left;
trap_elen len;
trap_elen i;
trap_elen piece;
_DBG_EnterFunc( "DoAccess()" );
_DBG_Writeln( "StartPacket" );
StartPacket();
if( Out_Mx_Num == 0 ) {
/* Tell the server we're not expecting anything back */
TRP_REQUEST( In_Mx_Ptr ) |= 0x80;
}
for( i = 0; i < In_Mx_Num; ++i ) {
_DBG_Writeln( "AddPacket" );
AddPacket( In_Mx_Ptr[i].ptr, In_Mx_Ptr[i].len );
}
TRP_REQUEST( In_Mx_Ptr ) &= ~0x80;
_DBG_Writeln( "PutPacket" );
PutPacket();
if( Out_Mx_Num != 0 ) {
_DBG_Writeln( "GetPacket" );
len = GetPacket();
left = len;
for( i = 0; i < Out_Mx_Num && left > 0; ++i ) {
if( left > Out_Mx_Ptr[i].len ) {
piece = Out_Mx_Ptr[i].len;
} else {
piece = left;
}
_DBG_Writeln( "RemovePacket" );
RemovePacket( Out_Mx_Ptr[i].ptr, piece );
left -= piece;
}
} else {
len = 0;
left = 0;
}
_DBG_ExitFunc( "DoAccess()" );
return( len - left );
}
trap_retval TRAPENTRY TrapRequest( trap_elen num_in_mx, in_mx_entry_p mx_in, trap_elen num_out_mx, mx_entry_p mx_out )
{
trap_retval result;
In_Mx_Num = num_in_mx;
Out_Mx_Num = num_out_mx;
In_Mx_Ptr = mx_in;
Out_Mx_Ptr = mx_out;
#if defined( WIN16 )
DisableHookEvents();
#endif
/* The first item must be the request! */
result = CoreRequests[TRP_REQUEST( mx_in )]();
#if defined( WIN16 )
EnableHookEvents();
#endif
return( result );
}
