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.

NOTE: 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

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

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