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sources/xpnput.b36
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%TITLE 'XPNPUT - Put data to a network link'
MODULE xpnput (
ENTRY ( XPN$PUT )
) =
BEGIN
! COPYRIGHT (C) DIGITAL EQUIPMENT CORPORATION 1981, 1985.
! ALL RIGHTS RESERVED.
!
! THIS SOFTWARE IS FURNISHED UNDER A LICENSE AND MAY BE USED AND
! COPIED ONLY IN ACCORDANCE WITH THE TERMS OF SUCH LICENSE AND WITH
! THE INCLUSION OF THE ABOVE COPYRIGHT NOTICE. THIS SOFTWARE OR
! ANY OTHER COPIES THEREOF MAY NOT BE PROVIDED OR OTHERWISE MADE
! AVAILABLE TO ANY OTHER PERSON. NO TITLE TO AND OWNERSHIP OF THE
! SOFTWARE IS HEREBY TRANSFERRED.
!
! THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT
! NOTICE AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL
! EQUIPMENT CORPORATION.
!
! DIGITAL ASSUMES NO RESPONSIBILITY FOR THE USE OR RELIABILITY OF
! ITS SOFTWARE ON EQUIPMENT THAT IS NOT SUPPLIED BY DIGITAL.
!++
! FACILITY:
! Transportable BLISS interface to DECNET-20.
!
! ABSTRACT:
! This module implements the XPN$PUT routine, called by the $XPN_PUT
! macro.
!
! ENVIRONMENT:
! TOPS20 user mode.
!
! AUTHOR: Larry Campbell, CREATION DATE: January 8, 1982
!
! MODIFIED BY:
!
!--
! TABLE OF CONTENTS:
!
FORWARD ROUTINE
xpn$put,
xpn$$put;
!
! INCLUDE FILES:
!
LIBRARY 'BLI:XPORT'; ! XPORT definitions
LIBRARY 'BLISSNET'; ! Transportable definitions
LIBRARY 'BLI:MONSYM'; ! TOPS-20 definitions
LIBRARY 'BLISSNET20'; ! BLISSnet-20 definitions
REQUIRE 'JSYSDEF'; ! JSYS linkage definitions
!
! MACROS:
!
!
! EQUATED SYMBOLS:
!
LITERAL
XPN$_TOOMUCHDATA = XPN$_BUG; ! *** Temporary until BLISSNET.REQ
! gets definition
!
! OWN STORAGE:
!
!
! EXTERNAL REFERENCES:
!
EXTERNAL ROUTINE
xpn$$valid_nlb,
xpn$$link_status,
xpn$$jsys_error;
GLOBAL ROUTINE xpn$put (nlb, success_routine, failure_routine) =
!++
! FUNCTIONAL DESCRIPTION:
! Top level code to support $XPN_PUT macro. This routine validates the
! NLB, calls xpn$$put to do the actual work, and deals with optional
! user-supplied success/failure routines.
!
! FORMAL PARAMETERS:
! nlb - address of the Network Link Block
!
! IMPLICIT INPUTS:
! NONE
!
! IMPLICIT OUTPUTS:
!
! ROUTINE VALUE and
! COMPLETION CODES:
! Code returned by xpn$$put.
!
! SIDE EFFECTS:
! NONE
!
!--
BEGIN
MAP
nlb : REF $XPN_NLB();
LOCAL
original_primary_code,
primary_code,
secondary_code,
retcode;
nlb_binds; ! create nice names for NLB fields
!
! validate the NLB
!
retcode = xpn$$valid_nlb (.nlb);
IF NOT .retcode THEN
BEGIN
original_primary_code = XPN$_BAD_NLB;
secondary_code = .retcode
END
ELSE
BEGIN
original_primary_code = xpn$$put (.nlb);
nlb[NLB$G_COMP_CODE] = .original_primary_code;
secondary_code = .nlb[NLB$G_2ND_CODE]
END;
!
! Check completion code and call success or failure routine as required
!
IF .original_primary_code THEN
IF .success_routine NEQ 0 THEN
primary_code =
(.success_routine) (XPN$K_PUT, .original_primary_code,
.secondary_code, .nlb)
ELSE
primary_code = .original_primary_code
ELSE
IF .failure_routine NEQ 0 THEN
primary_code =
(.failure_routine) (XPN$K_PUT, .original_primary_code,
.secondary_code, .nlb)
ELSE
primary_code = .original_primary_code;
!
! Unless the NLB was bad, store the completion code there
!
IF .original_primary_code NEQ XPN$_BAD_NLB
THEN
nlb[NLB$G_COMP_CODE] = .primary_code;
RETURN (.primary_code);
END; !End of xpn$put
ROUTINE xpn$$put (nlb) =
!++
! FUNCTIONAL DESCRIPTION:
! Does the actual work to support the $XPN_PUT macro.
!
! FORMAL PARAMETERS:
! nlb - address of the Network Link Block
!
! IMPLICIT INPUTS:
! NONE
!
! IMPLICIT OUTPUTS:
! NONE
!
! ROUTINE VALUE and
! COMPLETION CODES:
! XPN$_ABORT - link has been aborted
! XPN$_DISCONNECTED - link has been disconnected
! XPN$_NOT_OPEN - NLB not open
! XPN$_TOOMUCHDATA - more than 16 bytes supplied for an interrupt message
! XPN$_ILLOGIC - user logic error
! XPN$_ACTIVE - TYPE=ACCEPT for active link is meaningless
! XPN$_NO_EVENT - no connect request pending for TYPE=ACCEPT
!
! SIDE EFFECTS:
! NONE
!
!--
BEGIN
MAP
nlb : REF $XPN_NLB();
LOCAL
link_status,
output_descriptor : REF $STR_DESCRIPTOR();
nlb_binds;
IF .nlb[NLB$V_OPEN] EQL 0
THEN
RETURN (XPN$_NOT_OPEN);
output_descriptor = .nlb[NLB$A_OUTPUT];
CASE .nlb[NLB$B_SUBFUNC] FROM NLB$K_DATA TO NLB$K_REJECT OF
SET
[NLB$K_DATA] :
BEGIN
LOCAL
byte_count;
IF (byte_count = .output_descriptor[STR$H_LENGTH]) EQL 0
THEN
RETURN (XPN$_NORMAL);
IF .nlb[NLB$V_END_MSG] ! Select SOUTR or SOUT
THEN
BEGIN
IF NOT JSYS_SOUTR (.nlb[NLB$H_JFN],
.output_descriptor[STR$A_POINTER],
-.byte_count,
0)
THEN
RETURN (xpn$$jsys_error (.nlb, SOUTR_))
END
ELSE
BEGIN
IF NOT JSYS_SOUT (.nlb[NLB$H_JFN],
.output_descriptor[STR$A_POINTER],
-.byte_count,
0)
THEN
RETURN (xpn$$jsys_error (.nlb, SOUT_))
END;
RETURN (XPN$_NORMAL)
END;
[NLB$K_INTERRUPT] :
BEGIN
LOCAL
byte_count;
IF (byte_count = MIN (.output_descriptor[STR$H_LENGTH], 16)) EQL 0
THEN
RETURN (XPN$_NORMAL);
IF NOT JSYS_MTOPR (.nlb[NLB$H_JFN],
$MOSIM,
.output_descriptor[STR$A_POINTER],
.byte_count)
THEN
RETURN (xpn$$jsys_error (.nlb, MTOPR_));
IF .output_descriptor[STR$H_LENGTH] GTR 16
THEN
RETURN (XPN$_TOOMUCHDATA)
ELSE
RETURN (XPN$_NORMAL)
END;
[NLB$K_LINK_SERV] : RETURN (XPN$_NORMAL);
[NLB$K_ACCEPT] :
BEGIN
IF active
THEN
BEGIN
nlb[NLB$G_2ND_CODE] = XPN$_ACTIVE;
RETURN (XPN$_ILLOGIC)
END;
!
! Check to make sure link is waiting for connect confirm
!
IF (xpn$$link_status (.nlb) AND MO_WCC) EQL 0
THEN
BEGIN
nlb[NLB$G_2ND_CODE] = XPN$_NO_EVENT;
RETURN (XPN$_ILLOGIC)
END;
IF NOT JSYS_MTOPR (.nlb[NLB$H_JFN],
$MOCC,
.output_descriptor[STR$A_POINTER],
MIN (.output_descriptor[STR$H_LENGTH], 16))
THEN
RETURN (xpn$$jsys_error (.nlb, MTOPR_));
nlb[NLB$V_CONNECTED] = 1;
nlb[NLB$V_CONN_REQ] = 0;
IF .output_descriptor[STR$H_LENGTH] GTR 16
THEN
RETURN (XPN$_TOOMUCHDATA)
ELSE
RETURN (XPN$_NORMAL)
END;
[INRANGE, OUTRANGE] : xpn$$bug ('Invalid NLB$B_SUBFUNC value');
TES;
RETURN (XPN$_BUG) ! Should never fall through here
END; !End of xpn$$put
END !End of module XPNPUT
ELUDOM