#include <exec/types.h>
#include <exec/memory.h>
#include <exec/interrupts.h>
#include <devices/input.h>

#include <proto/exec.h>

extern void checkDisk( void );
extern void patchDOSlibrary( void );
extern BOOL resetDOSlibrary( void );

struct Interrupt *diskhandler;
struct IOStdReq *inputIO;
struct MsgPort *inputMPort;
BYTE diskBit;
ULONG diskSig;
struct Task *thisTask;

/*
 * This handler signals us the user has inserted or removed a disk,
 * or some file has been deleted or written. This piece of code sets
 * up the handler; the main code for the handler is in handler.s, in
 * which there is also the code for patching OS functions Delete and
 * Close.
 */

BOOL setDiskHandler( void )
{
if ( (diskBit = AllocSignal( -1 )) != -1 )
	{
	diskSig = 1L<<diskBit;
	thisTask = FindTask( NULL );

	if ( inputMPort = CreateMsgPort() )
		{
		if ( inputIO = CreateIORequest( inputMPort, sizeof(struct IOStdReq) ) )
			{
			if ( !( OpenDevice( "input.device", 0, (struct IORequest *)inputIO, 0 ) ) )
				{
				if ( diskhandler = AllocVec( sizeof(struct Interrupt), MEMF_ANY | MEMF_CLEAR ) )
					{
					diskhandler->is_Code = checkDisk;
					diskhandler->is_Data = NULL;
					diskhandler->is_Node.ln_Pri = 100;
					diskhandler->is_Node.ln_Name = "Split-DiskHandler";

					inputIO->io_Data = (APTR)diskhandler;
					inputIO->io_Command = IND_ADDHANDLER;
					DoIO( (struct IORequest *)inputIO );

					return TRUE;
					}
				}
			DeleteIORequest( inputIO );
			}
		DeleteMsgPort( inputMPort );
		}
	FreeSignal( diskBit );
	}
return FALSE;
}


void removeDiskHandler( void )
{
inputIO->io_Data = (APTR)diskhandler;
inputIO->io_Command = IND_REMHANDLER;
DoIO( (struct IORequest *)inputIO );
DeleteIORequest( inputIO );
DeleteMsgPort( inputMPort );
FreeSignal( diskBit );
}