N: SIO Command 'C' Close

SIO Command Close ($43) ['C']

This is a command for Devices $71-$78 - The N: Device (see SIO-Commands-for-Device-IDs-$71-to-$78).

Description

Close the N: device pointed to by DUNIT. This immediately closes the protocol instance on the ESP, which does any housekeeping required, such as closing connections and deallocating buffers.

Warning

This does not automatically flush any pending write buffers. You must do that yourself, at this level.

Parameters

ADAM

Parameters

• Device 09 to 0C
• Use AdamNET Write (EOS WRITE CHARACTER DEVICE)

Offset	Value
0	'C'

ATARI

DCB	Value
DDEVIC	$71
DUNIT	$01 - $04
DCOMND	$43 'C'
DSTATS	$00
DBUF	NULL
DTIMLO	$0F
DBYT	0
DAUX1	0
DAUX2	0

Examples

ATARI

Atari BASIC

REM Close the channel
CLOSE #1

CC65

/**
 * io_done() - Called to close I/O
 */
void io_done(void)
{
  OS.dcb.ddevic=0x71;
  OS.dcb.dunit=1;
  OS.dcb.dcomnd='C';
  OS.dcb.dstats=0x00;
  OS.dcb.dbuf=0;
  OS.dcb.dbyt=0;
  OS.dcb.daux=0;
  siov();
}

COLECO ADAM

Z88DK C

#define NET_DEV 0x09

void close()
{
      /* Close currently open network connection */
      eos_write_character_device(NET_DEV,"C",1);
}

See Also

Put other related command links here.