void RestoreHandlers( void )
{
TinySetVect( 0x10, _old10 );
TinySetVect( 0x1b, _old1b );
TinySetVect( 0x23, _old23 );
TinySetVect( 0x24, _old24 );
TinySetVect( 0x28, _old28 );
}
void GrabHandlers( void )
{
_old10 = TinyGetVect( 0x10 );
_old1b = TinyGetVect( 0x1b );
_old23 = TinyGetVect( 0x23 );
_old24 = TinyGetVect( 0x24 );
_old28 = TinyGetVect( 0x28 );
TinySetVect( 0x10, Interrupt10 );
TinySetVect( 0x1b, Interrupt1b_23 );
TinySetVect( 0x23, Interrupt1b_23 );
TinySetVect( 0x24, Interrupt24 );
TinySetVect( 0x28, orig28 );
}
void __grab_int_ctrl_break( void )
{
if( __old_int_ctrl_break == 0 ) {
#if defined(__WINDOWS_386__)
__old_int_ctrl_break = _dos_getvect( CTRL_BRK_VEC );
TinySetVect( CTRL_BRK_VEC, (void (_WCNEAR *)(void))__int_ctrl_break_handler );
#elif defined( __386__ )
if( _IsPharLap() ) {
__old_int_ctrl_break = pharlap_rm_getvect( CTRL_BRK_VEC );
__old_pm_int_ctrl_break = pharlap_pm_getvect( CTRL_BRK_VEC );
pharlap_setvect( CTRL_BRK_VEC, (pfun) (void (_WCNEAR *)(void))__int_ctrl_break_handler );
} else if( __DPMI_hosted() == 1 ) {
DPMILockLinearRegion((long)__int_ctrl_break_handler,
((long)__restore_int23 - (long)__int_ctrl_break_handler));
__old_int_ctrl_break = DPMIGetRealModeInterruptVector( CTRL_BRK_VEC );
__old_pm_int_ctrl_break = DPMIGetPMInterruptVector( CTRL_BRK_VEC );
DPMISetPMInterruptVector( CTRL_BRK_VEC, __int_ctrl_break_handler );
} else { /* what it used to do */
__old_int_ctrl_break = _dos_getvect( CTRL_BRK_VEC );
_dos_setvect( CTRL_BRK_VEC, __int_ctrl_break_handler );
}
#else
__old_int_ctrl_break = _dos_getvect( CTRL_BRK_VEC );
_dos_setvect( CTRL_BRK_VEC, __int_ctrl_break_handler );
#endif
if( __int23_exit == __null_int23_exit ) {
__int23_exit = __restore_int_ctrl_break;
} else if( __int23_exit == __restore_int23 ) {
__int23_exit = __restore_int;
}
}
}
void __restore_int_ctrl_break( void )
{
if( __old_int_ctrl_break == 0 ) {
return;
}
if( __int23_exit == __restore_int ) {
__int23_exit = __restore_int23;
} else if( __int23_exit == __restore_int_ctrl_break ) {
__int23_exit = __null_int23_exit;
}
#if defined(__WINDOWS_386__)
TinySetVect( CTRL_BRK_VEC, __old_int_ctrl_break );
#elif defined( __386__ )
if( _IsPharLap() ) {
pharlap_rm_setvect( CTRL_BRK_VEC, __old_int_ctrl_break );
pharlap_pm_setvect( CTRL_BRK_VEC, __old_pm_int_ctrl_break );
} else if( __DPMI_hosted() == 1 ) {
DPMISetRealModeInterruptVector( CTRL_BRK_VEC, __old_int_ctrl_break );
DPMISetPMInterruptVector( CTRL_BRK_VEC, __old_pm_int_ctrl_break );
} else {
_dos_setvect( CTRL_BRK_VEC, __old_int_ctrl_break );
}
#else
_dos_setvect( CTRL_BRK_VEC, __old_int_ctrl_break );
#endif
__old_int_ctrl_break = 0;
}
void __restore_int23( void )
{
if( __old_int23 == 0 ) {
return;
}
if( __int23_exit == __restore_int ) {
__int23_exit = __restore_int_ctrl_break;
} else if( __int23_exit == __restore_int23 ) {
__int23_exit = __null_int23_exit;
}
#if defined(__WINDOWS_386__)
TinySetVect( 0x23, __old_int23 );
#elif defined( __386__ )
if( _IsPharLap() ) {
pharlap_rm_setvect( 0x23, __old_int23 );
pharlap_pm_setvect( 0x23, __old_pm_int23 );
} else if( __DPMI_hosted() == 1 ) {
DPMISetRealModeInterruptVector( 0x23, __old_int23 );
DPMISetPMInterruptVector( 0x23, __old_pm_int23 );
} else { /* this is what it used to do */
_dos_setvect( 0x23, __old_int23 );
}
#else
_dos_setvect( 0x23, __old_int23 );
#endif
__old_int23 = 0;
}
_WCRTLINK void _dos_setvect( unsigned intnum, void (__interrupt _WCFAR *func)() )
{
#if defined(__WINDOWS_386__)
TinySetVect( intnum, (void _WCNEAR *) func );
#elif defined(__386__)
if( _IsPharLap() ) {
pharlap_setvect( intnum, func );
} else { /* DOS/4G style */
dos4g_setvect( intnum, func );
}
#else
_setvect( intnum, func );
#endif
}