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7-sources/mxqman.bli
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! Edit= 314 to MXQMAN.BLI on 17-May-88 by WADDINGTON, for SPR #21402
!Make MX work without DECnet for both TOPS-10 and TOPS-20.
MODULE mxqman =
BEGIN
!
! COPYRIGHT (c) 1984 BY
! DIGITAL EQUIPMENT CORPORATION, MAYNARD, MASS.
!
! 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 WHICH IS NOT SUPPLIED BY DIGITAL.
!
!++
! FACILITY: Decmail/MS Message eXchange (MX) Queue Management Routines
!
! ABSTRACT: This module contains the data structures and routines used by
! the Message Queue Manager. All the queues and other global data
! structures are defined here as well.
!
! ENVIRONMENT: Tops-10/Tops-20 User Mode
!
! AUTHOR: Richard B. Waddington, CREATION DATE: 28 November, 1984
!
! MODIFIED BY:
!
! MX: VERSION 1.0
! 01 -
!--
!
! INCLUDE FILES:
!
%IF %SWITCHES(TOPS20) %THEN
LIBRARY 'monsym';
UNDECLARE time;
LIBRARY 'mxjlnk';
%ELSE
LIBRARY 'tbl';
%FI
LIBRARY 'mxnlib' ; ! Our version of NML's utility library
LIBRARY 'mxlib';
!
! TABLE OF CONTENTS:
!
FORWARD ROUTINE
get_next_envelope_file,
parse_envelope_file,
par_work_req,
convert_to_integer,
reppar: NOVALUE,
mx$change_ext,
mx$unique_msg_file_name,
mx$message_queue_routines,
mx$message_queue_local_routines;
!
! MACROS:
!
MACRO
prived =
%IF %SWITCHES(TOPS10) %THEN
BEGIN
BUILTIN UUO;
REGISTER t;
IF UUO(1,getppn(t))
THEN
1 !Jacct set
ELSE
.t EQL (1^18)+2 !ppn EQL 1,2
END
%ELSE
BEGIN
declare_jsys(rpcap);
LOCAL
caps;
$$rpcap($fhslf;,caps);
(.caps AND (sc_whl OR sc_opr)) NEQ 0 !True if SC_WHL or SC_OPR are set
END
%FI %,
get_my_node(buf_,len_) =
%IF %SWITCHES(TOPS20) %THEN
BEGIN
![314] REPLACE TOPS20 CONDITIONAL IN MACRO GET_MY_NODE
declare_jsys(cnfig,node,geter,gthst);
STACKLOCAL
carg: VECTOR[8];
BIND
nodblk = carg[0],
sftflg = carg[6];
!TRY AND GET LOCAL DECNET NODE NAME
buf_ = 0; !Note: buf_=0 implies no net
carg[0] = 8; !Length of the argument block
IF $$cnfig($cfinf,carg) !Do the cnfig% JSYS
THEN
BEGIN
nodblk = CH$PTR(buf_);
IF (.sftflg AND cf_dcn) NEQ 0 !Check the decnet bit
THEN
$$node($ndgln,nodblk) !We have decnet
ELSE
BEGIN
BIND
dcn = .nettab[mx$decnet];
dcn = 0; !Turn off decnet tasks
IF (.sftflg AND cf_arp) NEQ 0
THEN
BEGIN !We do have arpa net
IF $$gthst($gthsz;,,,nodblk) !Get node number in nodblk
THEN !Convert number to name
$$gthst($gthns,CH$PTR(buf_),.nodblk);
END
END
END;
len_ = CH$LEN(CH$PTR(buf_));
END
%ELSE !Throw together Tops-10 node name
BEGIN
BUILTIN UUO;
LOCAL
b: VECTOR[3]; ![xxx]
REGISTER
r;
![314] CHECK FOR DECNET
r = _cnst2;
UUO(1,gettab(r));
IF (.r AND st_d36) NEQ 0
THEN
BEGIN !DECNET EXISTS...
b[0] = dn$fle OR ($dnlnn ^ 18) OR 3; !FUNCTION,,ARG BLK LEN
b[1] = b[2] = 0; !NODE NAME RETURNED IN B[2]
r = b;
IF UUO(1,dnet$(r))
THEN
BEGIN !Translate SIXBIT to ASCII
CH$TRANSLATE(sx_asc,
6, CH$PTR(b[2],0,6),
0,
7, CH$PTR(buf_));
END
END
ELSE
BEGIN
BIND
dcn = .nettab[mx$decnet];
!NO DECNET, TURN OFF DECNET TASKS AND USE ANF NODE NAME...
dcn = 0; !TURN OFF DECNET TASKS
buf_ = 0; !BUF_=0 IMPLIES NO NETWORK AT ALL
!BUT WE'LL TRY AND USE ANF NODE NAME
!IF ANF EXISTS...
r = $gtloc;
IF UUO(1,GETTAB(r)) !GET THE NODE NUMBER
THEN
BEGIN
b[0] = 2;
b[1] = .r;
r = $ndrnn^18 + b; !CONVERT TO SIXBIT
IF UUO(1,node$(r))
THEN
BEGIN
b = .r;
CH$TRANSLATE(sx_asc, !CONVERT SIXBIT TO ASCIZ
6, CH$PTR(b,0,6),
0,
7, CH$PTR(buf_));
len_ = CH$LEN(CH$PTR(buf_));
END;
END;
END
END
%FI
%,
SET_DEFAULT_FILE_PROTECTION =
%IF %SWITCHES(TOPS10) %THEN
BEGIN
EXTERNAL ROUTINE SETPRO;
SETPRO();
END
%FI %;
MACRO
WAIT_FOR_UPS =
%IF %SWITCHES(TOPS20) %THEN
BEGIN
DECLARE_JSYS(mstr,gjinf,thibr)
LOCAL
_ARG: VECTOR[$msgln],
_TTY;
_arg[$msgsn] = CH$PTR(UPLIT(%ASCIZ'UPS'));
WHILE NOT $$mstr($msgln^18 + $msgss, _arg) DO
BEGIN
!Here if UPS: unavailable...
$$gjinf(;,,,_tty);
IF ._tty NEQ -1 !Blast to console if not detached
THEN
TASK_INFO('Waiting for UPS:');
$$thibr(60); !Wait a minute and try again
END
END
%FI %;
!
! EQUATED SYMBOLS:
!
%IF %SWITCHES(TOPS10) %THEN
BIND
sx_asc = CH$TRANSTABLE(0,
seq(%C'!', %C'_'));
%FI
!
! OWN STORAGE:
!
GLOBAL BIND
logspc = UPLIT(%ASCIZ'UPS:MX.LOG');
GLOBAL
mxlogf,
mxlogm,
nodlen: INITIAL(10),
nodnam: BLOCK[20], ![314]
work_queue: SQ_HEADER,
dfer_queue: Q_HEADER,
done_queue: SQ_HEADER,
active_message_table: initial(0);
OWN
env_cntr: INITIAL(0);
!
! EXTERNAL REFERENCES:
!
EXTERNAL
nettab: VECTOR[max_number_of_domains],
verstr;
EXTERNAL ROUTINE
parse_rcpt,
scan_pkt,
copy_string,
copy_asciz,
mx$validate_local_user,
mx$file_routines,
mx$error_routines,
mx$database_routines,
nmu$text_manager,
nmu$sched_manager,
nmu$queue_manager,
nmu$memory_manager,
nmu$page_get,
nmu$page_release,
nmu$network_local,
nmu$table_routines;
%global_routine ('MX$MESSAGE_QUEUE_INITIALIZE') :NOVALUE = !
!++
! FUNCTIONAL DESCRIPTION:
! This routine initializes the queues and tables used by the MESSAGE QUEUE
! MANAGMENT routines.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! The headers of the various queues and tables.
!
! IMPLICIT OUTPUTS:
!
! The headers of the various queues and tables.
!
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! Tasks which service the above mentioned queues are scheduled to run.
!
!--
BEGIN
LOCAL
tsk_nam,
error,
nam_buf: VECTOR[CH$ALLOCATION(132)],
domain: REF domain_data_block;
MACRO
newpag = CH$PTR(UPLIT(%ASCIZ %CHAR(%O'14',%O'15',%O'12'))) %;
IF NOT prived
THEN
BEGIN
TASK_INFO('Insufficient privileges!');
STOP_PROGRAM;
END;
WAIT_FOR_UPS;
SET_DEFAULT_FILE_PROTECTION;
!
!Open the error log file...
!
IF mx$file_exists(CH$PTR(logspc))
THEN
mxlogm = file_access_append_only
ELSE
mxlogm = file_access_write_only;
mxlogf = mx$file_open(CH$PTR(logspc), .mxlogm, error);
IF .mxlogf EQL 0
THEN
BEGIN
task_info('Could not create log file in UPS:');
STOP_PROGRAM;
END;
mxlogm = 0; !Clear the log modified flag...
mx$file_write(.mxlogf, newpag, 3, 0);
$trace_always('*** MX %A Log File Opened ***',CH$PTR(verstr));
get_my_node(nodnam,nodlen);
nmu$squeue_reset(work_queue);
nmu$queue_reset(dfer_queue);
nmu$squeue_reset(done_queue);
nmu$table_clear(active_message_table);
nmu$sched_create(mx$message_queue_cleanup,500,0,ch$asciz('CLEANUP'));
nmu$sched_create(mx$message_queue_defer,500,0,ch$asciz('DEFER'));
nmu$sched_create(mx$message_queue_manager,500,0,ch$asciz('QUEUE_MANAGER'));
!
! Set up the domain spoolers, servers, and host tables for each defined domain.
!
INCR i FROM 0 TO max_number_of_domains - 1 DO
BEGIN
domain = .nettab[.i];
IF .domain[dom_name] NEQ 0
THEN
BEGIN
domain[dom_spooler_queue] = nmu$memory_get(sq_header_size);
nmu$squeue_reset(.domain[dom_spooler_queue]);
tsk_nam = ch$ptr(nam_buf);
$nmu$text(tsk_nam,132,'%A-SPOOLER',ch$ptr(.domain[dom_name]));
nmu$sched_create(.domain[dom_spooler_task],500,0,ch$ptr(nam_buf));
tsk_nam = ch$ptr(nam_buf);
$nmu$text(tsk_nam,132,'%A-SERVER',ch$ptr(.domain[dom_name]));
nmu$sched_create(.domain[dom_server_task],500,0,ch$ptr(nam_buf));
IF .nodnam EQL 0 ![314]Don't INIT the local domain if there is
THEN ![314] no network.
EXITLOOP; ![314]
IF NOT mx$data_initialize(.i)
THEN
BEGIN
mx$data_get_space();
IF NOT mx$data_initialize(.i)
THEN
mx$fatal('Insuffient memory for Node data');
END
END;
END;
mx$recovery();
END; !End of MX$MESSAGE_QUEUE_INITIALIZE
%routine ('MX$RECOVERY') :NOVALUE =
!++
! FUNCTIONAL DESCRIPTION
! This routine handles startup processing for MX. It searches the post
! office directory for Envelope Files, and based on their contents,
! re-generates work requests, and queues them to the WORK QUEUE.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! NONE
!
! IMPLICIT OUTPUTS:
!
! NONE
!
! ROUTINE VALUE: NONE
!
! SIDE EFFECTS:
!
! NONE
!--
BEGIN
LOCAL
spec,
head: list_blk,
list: REF list_blk,
msg: REF message_table_entry,
tmp,
envflg;
$TRACE('RECOVERY called');
spec = nmu$memory_get(CH$ALLOCATION(max_string_length));
head[lst_next] = 0;
list = head;
envflg = 0;
WHILE get_next_envelope_file(CH$PTR(.spec), envflg) DO
BEGIN
$TRACE_ALWAYS('Envelope file: %A', CH$PTR(.spec));
list[lst_next] = mx$get_list_blk;
list = .list[lst_next];
list[lst_next] = 0;
list[lst_data] = copy_asciz(CH$PTR(.spec));
END;
list = .head[lst_next];
WHILE .list NEQ 0 DO
BEGIN
IF (msg = parse_envelope_file(.list[lst_data])) NEQ 0
THEN
mx$message_queue_post(.msg);
tmp = .list;
![301] Delete 1 line. Don't release the filespec's memory. It will be
![301] reused later.
list = .list[lst_next];
nmu$memory_release(.tmp,list_block_size);
END;
nmu$memory_release(.spec,CH$ALLOCATION(max_string_length));
RETURN
END;
%routine ('GET_NEXT_ENVELOPE_FILE', ptr, flag_) =
BEGIN
BIND
flag = .flag_;
%IF %SWITCHES(TOPS20) %THEN
declare_jsys(gtjfn,gnjfn,jfns,rljfn);
LOCAL
tmp;
BIND
envptr = CH$PTR(UPLIT(%ASCIZ'UPS:*.ENV'));
IF .flag EQL 0
THEN
BEGIN
IF NOT $$gtjfn(gj_sht OR gj_old OR gj_ifg OR gj_flg,
envptr; flag)
THEN
RETURN 0;
END
ELSE
IF NOT $$gnjfn(.flag)
THEN
RETURN 0;
$$jfns(.ptr, .flag<0,18,0>, %O'111110000001');
RETURN 1;
%ELSE
! %WARN('GET_NEXT_ENVELOPE_FILE not yet implemented on TOPS-10')
STACKLOCAL
nambuf: VECTOR[2];
LOCAL
nam;
IF .flag EQL 0
THEN
flag = nmu$page_get() * %O'1000';
IF bldque(.flag; nam)
THEN
BEGIN
CH$TRANSLATE(sx_asc,
6, CH$PTR(nam,0,6),
0,
7, CH$PTR(nambuf));
$nmu$text(ptr,max_string_length,'UPS:%A.ENV',CH$PTR(nambuf));
RETURN 1;
END
ELSE
BEGIN
nmu$page_release(.flag/%O'1000');
RETURN 0;
END
%FI
END;
%routine ('PARSE_ENVELOPE_FILE', spec) =
BEGIN
LOCAL
envfil,
error,
len,
req: REF work_request_block,
msg: REF message_table_entry,
list: REF list_blk;
STACKLOCAL
linbuf: VECTOR[CH$ALLOCATION(max_string_length)];
$TRACE('PARSE_ENVELOPE_FILE called');
IF NOT (envfil = mx$file_open(
CH$PTR(.spec),
file_access_read_only,
error)) GTR 0
THEN
RETURN $error(SEVERITY = $warning,
FACILITY = $internal,
CODE = uf$fof,
MESSAGE_DATA = CH$PTR(.spec),
OPTIONAL_MESSAGE= $error_code,
OPTIONAL_DATA = .error);
WHILE (len = mx$file_read(.envfil, CH$PTR(linbuf), 132, error)) GTR 0 DO
BEGIN
linbuf<0,1,0> = 0;
SELECTONE .linbuf OF
SET
['FILE ']: IF mx$file_exists(CH$PTR(linbuf[1]))
THEN
BEGIN
msg = mx$get_message_table_entry;
msg[msg_fil_spec] = copy_string(CH$PTR(linbuf[1]),
.len-6);
CH$WCHAR(0,CH$PLUS(CH$PTR(.msg[msg_fil_spec]),.len-7));
![301] Add 1 line. Reuse the file spec.
msg[msg_env_spec] = .spec;
END
ELSE
BEGIN
msg = 0;
EXITLOOP;
END;
['SNDR ']: BEGIN
msg[msg_sender_string] = copy_string(CH$PTR(linbuf[1]),
.len-6);
CH$WCHAR(0,CH$PLUS(CH$PTR(.msg[msg_sender_string]),.len-7))
END;
['STAT ']: msg[msg_state] = convert_to_integer(CH$PTR(linbuf[1]),
.len-7);
['SDID ']: msg[msg_sender_domain] = convert_to_integer(
CH$PTR(linbuf[1]),
.len-7);
['ERR ']: BEGIN
list = mx$get_list_blk;
list[lst_data] = copy_string(CH$PTR(linbuf[1]), .len-6);
CH$WCHAR(0,CH$PLUS(CH$PTR(.list[lst_data]),.len-7));
list[lst_next] = .msg[msg_err_list];
msg[msg_err_list] = .list;
END;
['WORK-']: BEGIN
list = mx$get_list_blk;
list[lst_data] = req = par_work_req(.envfil, linbuf);
req[req_message_id] = .msg[msg_msg_id];
list[lst_next] = .msg[msg_work_req_list];
msg[msg_work_req_list] = .list;
msg[msg_work_req_count] = .msg[msg_work_req_count] + 1;
END;
['END -']: ;
TES;
END;
IF .len LSS 0
THEN
$error( SEVERITY = $warning,
FACILITY = $internal,
CODE = uf$frf,
MESSAGE_DATA = CH$PTR(.spec),
OPTIONAL_MESSAGE = $error_code,
OPTIONAL_DATA = .error);
mx$file_close(.envfil, file_abort, error);
mx$file_delete(.spec);
RETURN .msg;
END;
%routine ('PAR_WORK_REQ', handle, buffer_) =
BEGIN
BIND
buffer = .buffer_: VECTOR;
LOCAL
len,
error,
list: REF list_blk,
req: REF work_request_block,
rdata: REF rb_block;
$TRACE('PAR_WORK_REQ called');
req = mx$get_work_request;
WHILE (len = mx$file_read(.handle, CH$PTR(buffer), 132, error)) GTR 0 DO
BEGIN
buffer<0,1,0> = 0;
SELECTONE .buffer OF
SET
['RDID ']: req[req_domain_id] = convert_to_integer(CH$PTR(buffer[1]),
.len-7);
['RNOD ']: BEGIN
LOCAL
ptr;
req[req_destination_node] =
nmu$memory_get(CH$ALLOCATION((.len-7+3+1),8));
ptr = CH$PTR(.req[req_destination_node],0,8);
CH$WCHAR_A(0,ptr);
CH$WCHAR_A(0,ptr);
CH$WCHAR_A(.len-7, ptr);
ptr = CH$MOVE(.len-7, CH$PTR(buffer[1]), .ptr);
CH$WCHAR(0,.ptr);
END;
['RTIM ']: req[req_time_stamp] = convert_to_integer(CH$PTR(buffer[1]),
.len-7);
['RTTL ']: req[req_time_to_live]=convert_to_integer(CH$PTR(buffer[1]),
.len-7);
['RCPT ']: BEGIN
list = mx$get_list_blk;
list[lst_data] = copy_string(CH$PTR(buffer[1]), .len-6);
CH$WCHAR(0,CH$PLUS(CH$PTR(.list[lst_data]),.len-7));
list[lst_next] = .req[req_recipient_list];
rdata = list[lst_xtra] =
parse_rcpt(CH$PTR(.list[lst_data]));
IF .req[req_domain_id] EQL $local
THEN
IF NOT mx$validate_local_user(.rdata[rb_name_len],
.rdata[rb_name_ptr],
buffer)
THEN
$error(
SEVERITY=$warning,
FACILITY=$protocol,
CODE=mg$nsu,
MESSAGE_DATA=(CH$PTR(UPLIT(%ASCIZ'ENVELOPE')),
CH$PTR(buffer)))
%IF %SWITCHES(TOPS10) %THEN
ELSE !Tops-10 Save the profile
rdata[rb_profile] = .buffer %FI ;
req[req_recipient_list] = .list;
END;
['END -']: RETURN .req
TES;
END;
RETURN 0;
END;
%routine('CONVERT_TO_INTEGER', ptr, len) =
BEGIN
LOCAL
num;
$TRACE('CONVERT_TO_INTEGER called');
num = 0;
INCR i FROM 1 TO .len DO num = (.num * 10) + CH$RCHAR_A(ptr) - %C'0';
RETURN .num;
END;
%global_routine ('MX$MESSAGE_QUEUE_POST', entry: REF message_table_entry) =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine posts a message to the message queue manager. It is the
! interface from the outside world. It takes a message table entry as input.
! The calling routine is responsible for setting up the following fields of
! the message table entry:
!
! MSG_FIL_SPEC: The address of an ASCIZ string containing the
! filespec of the "message text file".
!
! MSG_SENDER_STRING: The address of an ASCIZ string.
!
! MSG_WORK_REQ_LIST: The address of a linked list of WORK-REQUESTS.
!
! MSG_SENDER_PID: The sender's PID
!
! MSG_SENDER_UID: The sender's UID
!
! MSG_SENDER_CAP: The sender's enabled capabilities
!
! All other fields in the message_table_entry should not be used by the
! calling routine. The work requests must have all their pertinant fields
! built, including the recipient list (which is a linked list of ASCIZ
! recipient strings). The REQ_MESSAGE_ID, the REQ_STATE, and the
! REQ_STATE_SPECIFIC_FIELD should not be used by the calling routine.
! This routine initializes the remaining fields of the message table
! entry, and queues each work request to the queue manager task.
!
! FORMAL PARAMETERS:
!
! ENTRY: the address of the message table entry.
!
! IMPLICIT INPUTS:
!
! NONE
!
! IMPLICIT OUTPUTS:
!
! This routine puts WORK_REQUEST's in the WORK_QUEUE, and initializes the
! following fields of the message_table_entry:
!
! MSG_WORK_REQ_COUNT
! MSG_ERR_LIST
!
! It also initializes the REQ_MESSAGE_ID, REQ_STATE, and the
! REQ_STATE_SPECIFIC_FIELDs of each WORK_REQUEST.
!
! ROUTINE VALUE: NONE
!
! SIDE EFFECTS:
!
! The QMAN task is scheduled to run.
!
!--
BEGIN
LOCAL
old_fil_spec,
list: REF list_blk;
$TRACE('MX$MESSAGE_QUEUE_POST was called ');
IF (list = .entry[msg_work_req_list]) EQL 0
THEN
BEGIN
mx$file_delete(.entry[msg_fil_spec]);
mx$file_delete(.entry[msg_env_spec]);
mx$release_message(.entry);
RETURN 0;
END;
! old_fil_spec = .entry[msg_fil_spec];
! entry[msg_fil_spec] = mx$change_ext(CH$PTR(.old_fil_spec),
! CH$PTR(UPLIT(%ASCIZ'MX')));
IF .entry[msg_env_spec] EQL 0
THEN
entry[msg_env_spec] = mx$build_envelope_spec();
entry[msg_state] = $msg_complete;
entry[msg_work_req_count] = 0;
$trace_always(%STRING( ' From: %A%/',
' File: %A'),
CH$PTR(.entry[msg_sender_string]),
CH$PTR(.entry[msg_fil_spec]));
WHILE .list NEQ 0 DO
BEGIN
BIND
request = .list[lst_data]: work_request_block;
$trace_always(' Node: %A',
CH$PTR(.request[req_destination_node],3,8));
entry[msg_work_req_count] = .entry[msg_work_req_count] + 1;
request[req_message_id] = .entry[msg_msg_id];
request[req_state_specific_field] = 0;
![305] RBW 26-AUG-86 Add test for null recipient list...
IF .request[req_recipient_list] EQL 0 ![305]
THEN ![305]
$mx$change_state(request, $done) ![305]
ELSE ![305]
$mx$change_state(request, $send);
list = .list[lst_next];
END;
mx$message_queue_checkpoint(.entry);
! IF mx$file_rename(CH$PTR(.old_fil_spec),CH$PTR(.entry[msg_fil_spec]))
! THEN
! mx$release_asciz(.old_fil_spec)
! ELSE
! BEGIN
! $TRACE_ALWAYS('RENAME FAILED - %A => %A',
! CH$PTR(.old_fil_spec),
! CH$PTR(.entry[msg_fil_spec]));
! mx$release_asciz(.entry[msg_fil_spec]);
! entry[msg_fil_spec] = .old_fil_spec;
! mx$message_queue_checkpoint(.entry);
! END;
RETURN 0;
END; !End of MX$MESSAGE_QUEUE_POST
%global_routine ('MX$MESSAGE_QUEUE_MANAGER') :NOVALUE = !
!++
! FUNCTIONAL DESCRIPTION:
! This task decides which action to take based on the type of the
! WORK_REQUEST.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! This task processes WORK_REQUEST's from the WORK_QUEUE.
!
! IMPLICIT OUTPUTS:
!
! This task puts WORK_REQUEST's in the DONE_QUEUE, DFER_QUEUE,
! RJCT_QUEUE, or the appropriate SPOOLER QUEUE.
!
! ROUTINE VALUE: NONE
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! Tasks which service the above mentioned queues may be scheduled to run.
!
!--
BEGIN
LOCAL
message: REF message_table_entry,
domain: REF domain_data_block,
request: REF work_request_block;
WHILE 1 DO !Do this task forever...
BEGIN
request = nmu$squeue_remove (work_queue);
$TRACE('Queue Manager Running ');
domain = .nettab[.request[req_domain_id]];
CASE .request[req_state]
FROM min_request_type TO max_request_type OF
SET
[$send]: nmu$squeue_insert(.domain[dom_spooler_queue],
.request);
[$done]: nmu$squeue_insert(done_queue,.request);
[$defer,$hold]: BEGIN
nmu$table_fetch(
active_message_table,
.request[req_message_id],
message);
SELECTONE .message[msg_state] OF
SET
[$msg_canceled]:
BEGIN
request[req_state] = $reject;
nmu$squeue_insert(done_queue, .request)
END;
[$msg_restart]:
nmu$squeue_insert(done_queue, .request);
[OTHERWISE]:
nmu$queue_insert(dfer_queue,.request);
TES;
END;
[$reject]: nmu$squeue_insert(done_queue,.request)
TES
END;
END; !End of MX$MESSAGE_QUEUE_MANAGER
%global_routine ('MX$MESSAGE_QUEUE_CLEANUP'):NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
! This task checks the ACTIVE_MESSAGE_TABLE and when all work requests
! are done, performs cleanup operations such as deleting message and envelope
! files.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! This task takes work requests from the DONE_QUEUE.
!
! IMPLICIT OUTPUTS:
!
! NONE
!
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! Messages will be removed from the ACTIVE_MESSAGE_TABLE.
!--
BEGIN
LOCAL
msg: REF message_table_entry,
request: REF work_request_block,
old_msg_spec;
WHILE 1 DO
BEGIN
request = nmu$squeue_remove(done_queue);
$TRACE('Cleanup running');
IF nmu$table_fetch(active_message_table,
.request[req_message_id], msg)
THEN
BEGIN
LOCAL ptr;
$TRACE('Decrementing Work Request Count');
msg[msg_work_req_count] = .msg[msg_work_req_count] - 1;
IF (.request[req_state] EQL $done) OR
(.request[req_state] EQL $reject)
THEN
mx$remove_request(.msg, .request);
IF .msg[msg_work_req_count] GTR 0
THEN
mx$message_queue_checkpoint(.msg)
ELSE
BEGIN
CASE .msg[msg_state] FROM $msg_complete TO $msg_canceled OF
SET
[$msg_complete,
$msg_incomplete]: BEGIN
$Trace_always(%STRING(
'Message from file %A%/',
' delivered to node %A%/'),
CH$PTR(.msg[msg_fil_spec]),
CH$PTR(.request[req_destination_node],3,8));
mx$file_delete(.msg[msg_fil_spec]);
mx$file_delete(.msg[msg_env_spec]);
mx$release_message(.msg)
END;
[$msg_restart]: BEGIN
mx$communicate(.msg);
mx$message_queue_post(.msg);
END;
[$msg_canceled]: BEGIN
$Trace_always(%STRING(
'Message from file %A%/',
' NOT delivered to node %A%/'),
CH$PTR(.msg[msg_fil_spec]),
CH$PTR(.request[req_destination_node],3,8));
old_msg_spec = .msg[msg_fil_spec];
msg[msg_fil_spec] =
mx$change_ext(
CH$PTR(.msg[msg_fil_spec]),
CH$PTR(UPLIT(%ASCIZ 'RPR')));
IF mx$file_rename(
CH$PTR(.old_msg_spec),
CH$PTR(.msg[msg_fil_spec]))
THEN
mx$release_asciz(.old_msg_spec)
ELSE
BEGIN
$TRACE_ALWAYS(
'RENAME FAILED %A => %A',
CH$PTR(.old_msg_spec),
CH$PTR(.msg[msg_fil_spec]));
mx$release_asciz(
.msg[msg_fil_spec]);
msg[msg_fil_spec] = .old_msg_spec;
END;
mx$communicate(.msg);
mx$file_delete(.msg[msg_env_spec]);
mx$release_message(.msg);
END;
TES;
END;
END;
END;
END; !End of MX$MESSAGE_QUEUE_CLEANUP
%routine('MX$REMOVE_REQUEST',
msg: REF message_table_entry,
request: REF work_request_block): NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine searches the work_req_list of the message_table_entry
! for the request whose address is in REQUEST. When it finds it, it is
! removed from the list, and its memory is released.
!
! FORMAL PARAMETERS:
!
! MSG: The message table entry.
! REQUEST: The work request to remove.
!
! IMPLICIT INPUTS:
!
! NONE
!
! IMPLICIT OUTPUTS:
!
! NONE
!
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! NONE
!--
BEGIN
MACRO
release_profile(rbblock) =
%IF %SWITCHES(TOPS10) %THEN
BEGIN
BIND
_rb = (rbblock):rb_block,
_pr = ._rb[rb_profile];
IF _pr NEQ 0
THEN
nmu$memory_release(_pr, ._pr<0,18,0> + 1);
END
%FI %;
LOCAL
prv_list: REF list_blk,
list: REF list_blk;
$TRACE('LIST_REMOVE called');
list = .msg[msg_work_req_list];
IF .list EQL 0
THEN
RETURN;
IF .list[lst_data] EQL .request
THEN
msg[msg_work_req_list] = .list[lst_next]
ELSE
BEGIN
prv_list = .list;
list = .list[lst_next];
WHILE .list NEQ 0 DO
BEGIN
IF .list[lst_data] EQL .request
THEN
EXITLOOP;
prv_list = .list;
list = .list[lst_next];
END;
IF .list NEQ 0
THEN
BEGIN
prv_list[lst_next] = .list[lst_next];
nmu$memory_release(.list, list_block_size);
list = .request[req_recipient_list];
WHILE .list NEQ 0 DO
BEGIN
prv_list = .list;
list = .list[lst_next];
mx$release_asciz(.prv_list[lst_data]);
release_profile(.prv_list[lst_xtra]);
nmu$memory_release(.prv_list[lst_xtra], rb_block_size);
nmu$memory_release(.prv_list, list_block_size);
END
END
END;
nmu$memory_release(.request, work_request_size);
END;
%global_routine('MX$MESSAGE_QUEUE_CHECKPOINT',
msg: REF message_table_entry): NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine takes the message table entry, and based on its contents,
! writes out an Envelope File. ***NOTE*** It is not yet implemented.
!
! FORMAL PARAMETERS:
!
! MSG: The message table entry.
!
! IMPLICIT INPUTS:
!
! NONE
!
! IMPLICIT OUTPUTS:
!
! The envelope file.
!
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! NONE
!--
BEGIN
STACKLOCAL
linbuf: VECTOR[CH$ALLOCATION(max_string_length)];
$LITERAL
done = $distinct,
msginfo = $distinct,
msgerrs = $distinct,
reqinfo = $distinct,
rcptlst = $distinct,
minstate = msginfo,
maxstate = rcptlst;
LOCAL
req: REF work_request_block,
list: REF list_blk,
rlist: REF list_blk,
errstr,
error,
state,
len,
envfil,
rc,
ptr;
$TRACE('CHECKPOINT called');
mx$file_delete(.msg[msg_env_spec]);
IF NOT (envfil = mx$file_open(
CH$PTR(.msg[msg_env_spec]),
file_access_write_only,
error)) GTR 0
THEN
RETURN $error(SEVERITY = $warning,
FACILITY = $internal,
CODE = uf$fof,
MESSAGE_DATA = CH$PTR(.msg[msg_env_spec]),
OPTIONAL_MESSAGE= $error_code,
OPTIONAL_DATA = .error);
state = msginfo;
WHILE .state NEQ done DO
BEGIN
ptr = CH$PTR(linbuf);
CASE .state FROM minstate TO maxstate OF
SET
[msginfo]: BEGIN
$TRACE('State = msginfo');
len = $nmu$text(ptr,max_string_length,
'FILE %A%/SNDR %A%/STAT %D%/SDID %D%/',
CH$PTR(.msg[msg_fil_spec]),
CH$PTR(.msg[msg_sender_string]),
.msg[msg_state],
.msg[msg_sender_domain]) - 1;
list = .msg[msg_err_list];
IF .list EQL 0
THEN
BEGIN
list = .msg[msg_work_req_list];
state = reqinfo;
END
ELSE
state = msgerrs;
END;
[msgerrs]: IF .list EQL 0
THEN
BEGIN
$TRACE('State = msgerrs/EOL');
len = $nmu$text(ptr,max_string_length,
'END - ERR-LIST%/')-1;
list = .msg[msg_work_req_list];
state = reqinfo;
END
ELSE
BEGIN
$TRACE('State = msgerrs/ERR');
len = $nmu$text(ptr,max_string_length,
'ERR %A%/',
CH$PTR(.list[lst_data])) - 1;
list = .list[lst_next];
END;
[reqinfo]: BEGIN
IF .list EQL 0
THEN
BEGIN
$TRACE('State = reqinfo/EWR');
len = $nmu$text(ptr,max_string_length,
'END - WRQ-LIST%/')-1;
state = done;
END
ELSE
BEGIN
$TRACE('State = reqinfo/REQ');
req = .list[lst_data];
len = $nmu$text(ptr,max_string_length,
%STRING('WORK-REQUEST%/RDID %D%/RNOD %A%/',
'RTIM %D%/RTTL %D%/'),
.req[req_domain_id],
CH$PTR(.req[req_destination_node],3,8),
.req[req_time_stamp],
.req[req_time_to_live]) - 1;
rlist = .req[req_recipient_list];
IF .rlist EQL 0
THEN
state = reqinfo
ELSE
BEGIN
state = rcptlst;
rlist = .req[req_recipient_list];
END;
END;
list = .list[lst_next];
END;
[rcptlst]: IF .rlist EQL 0
THEN
BEGIN
$TRACE('State = rcptlst/EOL');
len = $nmu$text(ptr,max_string_length,
'END - RCP-LIST%/')-1;
state = reqinfo;
END
ELSE
BEGIN
$TRACE('State = rcptlst(%D)/RCPT: %A',(rc=.rc+1),
CH$PTR(.rlist[lst_data]));
len = $nmu$text(ptr, max_string_length,
'RCPT %A%/',
CH$PTR(.rlist[lst_data]))-1;
rlist = .rlist[lst_next];
END;
TES;
if not mx$file_write(.envfil, CH$PTR(linbuf), .len, error)
THEN
BEGIN
$error(SEVERITY = $warning,
CODE = uf$fwf,
FACILITY = $internal,
MESSAGE_DATA = CH$PTR(.msg[msg_env_spec]),
optional_message = $error_code,
optional_data = .error);
mx$file_close(.envfil, file_abort, error);
RETURN
END;
END;
IF NOT mx$file_close(.envfil, file_keep, error)
THEN
RETURN $error(
SEVERITY = $warning,
CODE = uf$fcf,
FACILITY = $internal,
MESSAGE_DATA = .msg[msg_env_spec],
OPTIONAL_MESSAGE = $error_code,
OPTIONAL_DATA = .error);
END;
%global_routine('MX$RELEASE_MESSAGE',
msg: REF message_table_entry): NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine flushes a message from the queue manager. After this
! routine finishes, there is no trace of the message left in the system.
!
! FORMAL PARAMETERS:
!
! MSG: The message table entry.
!
! IMPLICIT INPUTS:
!
! NONE
!
! IMPLICIT OUTPUTS:
!
! The envelope file.
!
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! NONE
!--
BEGIN
LOCAL
list: REF list_blk VOLATILE,
prv_list: REF list_blk;
$TRACE('RELEASE_MESSAGE called');
mx$release_asciz(.msg[msg_env_spec]);
mx$release_asciz(.msg[msg_fil_spec]);
mx$release_asciz(.msg[msg_sender_string]);
mx$release_asciz(.msg[msg_subject_string]);
list = .msg[msg_work_req_list];
WHILE .list NEQ 0 DO
BEGIN
mx$remove_request(.msg,.list[lst_data]);
list = .list[lst_next];
END;
list = .msg[msg_err_list];
msg[msg_err_list] = 0;
WHILE .list NEQ 0 DO
BEGIN
prv_list = .list;
list = .list[lst_next];
mx$release_asciz(.prv_list[lst_data]);
IF .prv_list[lst_xtra] NEQ 0
THEN
nmu$memory_release(.prv_list[lst_xtra], rb_block_size);
prv_list[lst_data] = prv_list[lst_next] = prv_list[lst_xtra] = 0;
nmu$memory_release(.prv_list, list_block_size);
END;
nmu$memory_release(.msg, message_table_entry_size);
END;
%routine('MX$COMMUNICATE', msg: REF message_table_entry): NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine formats up a mail message back to the user based on the
! linked list of error strings contained in the message table entry.
! ***NOTE*** This is not yet implemented.
!
! FORMAL PARAMETERS:
!
! MSG: The message table entry.
!
! IMPLICIT INPUTS:
!
! NONE
!
! IMPLICIT OUTPUTS:
!
! The envelope file.
!
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! NONE
!--
BEGIN
STACKLOCAL
buffer: VECTOR[CH$ALLOCATION(max_string_length)],
timbuf: VECTOR[CH$ALLOCATION(30)];
LOCAL
msgblk: REF list_blk,
msgfil,
page: REF ipcf_hdr,
rec: REF ipcf_rec,
inpfil,
fil,
len,
ptr,
error;
MACRO
pm_string = 'POSTMASTER' %;
%IF %SWITCHES(TOPS20) %THEN declare_jsys(odtim); %FI
$TRACE('COMMUNICATE called');
page = nmu$page_get() * %O'1000';
page[hdr_type] = lcl_post;
page[hdr_domain_id] = $local;
page[hdr_id] = 0;
page[hdr_sequence] = 1;
page[hdr_status] = lcl_complete;
page[hdr_record_count] = 3;
rec = page[hdr_record];
fil = mx$unique_msg_file_name();
len = CH$LEN(CH$PTR(.fil)) + 1;
rec[rec_seq] = 1;
rec[rec_type] = rec_file;
rec[rec_error] = 0;
rec[rec_length] = 3 + CH$ALLOCATION(.len);
CH$MOVE(.len, CH$PTR(.fil), CH$PTR(rec[rec_data]));
rec = .rec + .rec[rec_length];
len = %CHARCOUNT(pm_string) + 1;
rec[rec_seq] = 2;
rec[rec_type] = rec_sender;
rec[rec_error] = 0;
rec[rec_length] = 3 + CH$ALLOCATION(.len);
CH$MOVE(.len, CH$PTR(UPLIT(%ASCIZ pm_string)), CH$PTR(rec[rec_data]));
rec = .rec + .rec[rec_length];
len = CH$LEN(CH$PTR(.msg[msg_sender_string])) + 1;
rec[rec_seq] = 3;
rec[rec_type] = rec_dest;
rec[rec_error] = 0;
rec[rec_length] = 3 + CH$ALLOCATION(.len);
CH$MOVE(.len, CH$PTR(.msg[msg_sender_string]), CH$PTR(rec[rec_data]));
%IF %SWITCHES(TOPS20) %THEN
$$odtim(CH$PTR(timbuf),-1,ot_tmz);
%ELSE
udtdat(-1,timbuf);
%FI
ptr = CH$PTR(buffer);
len = $nmu$text(ptr,max_string_length,%STRING(
'Date: %A%/',
'From: Postmaster <POSTMASTER@%A>%/',
'To: %A%/',
'Subject: Undeliverable Mail%/%/',
'MX%A was unable to deliver some (or all) of the mail contained%/',
'in the file %A because:%/%/%/'),
CH$PTR(timbuf),
CH$PTR(nodnam),
CH$PTR(.msg[msg_sender_string]),
CH$PTR(verstr),
CH$PTR(.msg[msg_fil_spec])) - 1;
IF NOT (msgfil = mx$file_open(
CH$PTR(.fil),
file_access_write_only,
error)) GTR 0
THEN
RETURN $error(SEVERITY = $warning,
FACILITY = $internal,
CODE = uf$fof,
MESSAGE_DATA = CH$PTR(.fil),
OPTIONAL_MESSAGE= $error_code,
OPTIONAL_DATA = .error);
IF NOT mx$file_write(.msgfil, CH$PTR(buffer), .len, error)
THEN
BEGIN
$error(SEVERITY = $warning,
CODE = uf$fwf,
FACILITY = $internal,
MESSAGE_DATA = CH$PTR(.fil),
OPTIONAL_MESSAGE = $error_code,
OPTIONAL_DATA = .error);
mx$file_close(.msgfil, file_abort, error);
RETURN
END;
msgblk = .msg[msg_err_list];
WHILE .msgblk NEQ 0 DO
BEGIN
ptr = CH$PTR(buffer);
len = $nmu$text(ptr,max_string_length,
'%A%/',CH$PTR(.msgblk[lst_data])) - 1;
$TRACE('"%A" has %D characters',CH$PTR(buffer),.len);
IF NOT mx$file_write(.msgfil, CH$PTR(buffer), .len, error)
THEN
BEGIN
$error(SEVERITY = $warning,
CODE = uf$fwf,
FACILITY = $internal,
MESSAGE_DATA = CH$PTR(.fil),
OPTIONAL_MESSAGE = $error_code,
OPTIONAL_DATA = .error);
mx$file_close(.msgfil, file_abort, error);
RETURN
END;
msgblk = .msgblk[lst_next];
END;
IF .msg[msg_sender_domain] EQL $local
THEN
BEGIN
LOCAL
repbuf;
REPPAR(.msg[msg_fil_spec], repbuf);
ptr = CH$PTR(buffer);
len = $nmu$text(ptr,max_string_length,%ASCIZ %STRING(
'%/You may use the command "REPAIR %A" to repair the message.%/',
' --------%/'),
CH$PTR(repbuf)) - 1;
IF NOT mx$file_write(.msgfil, CH$PTR(buffer), .len, error)
THEN
BEGIN
$error(SEVERITY = $warning,
CODE = uf$fwf,
FACILITY = $internal,
MESSAGE_DATA = CH$PTR(.fil),
OPTIONAL_MESSAGE = $error_code,
OPTIONAL_DATA = .error);
mx$file_close(.msgfil, file_abort, error);
RETURN
END;
END
ELSE
BEGIN
MACRO utxt = %STRING(
%CHAR(%O'15',%O'12'),
'The text of the unsent message follows:',
%CHAR(%O'15',%O'12'),
' ========',
%CHAR(%O'15',%O'12')) %;
IF NOT (inpfil = mx$file_open(
CH$PTR(.msg[msg_fil_spec]),
file_access_read_only,
error)) GTR 0
THEN
BEGIN
mx$file_close(.msgfil, file_abort, error);
RETURN $error(SEVERITY = $warning,
FACILITY = $internal,
CODE = uf$fof,
MESSAGE_DATA = CH$PTR(.fil),
OPTIONAL_MESSAGE= $error_code,
OPTIONAL_DATA = .error);
END;
IF NOT mx$file_write( .msgfil,
CH$PTR(UPLIT(utxt)),
%CHARCOUNT(utxt),
error)
THEN
BEGIN
mx$file_close(.msgfil, file_abort, error);
mx$file_close(.inpfil, file_abort, error);
RETURN $error(SEVERITY = $warning,
CODE = uf$fwf,
FACILITY = $internal,
MESSAGE_DATA = CH$PTR(.fil),
OPTIONAL_MESSAGE = $error_code,
OPTIONAL_DATA = .error);
END;
WHILE (len = mx$file_read
(.inpfil, CH$PTR(buffer), max_string_length, error)) GTR 0 DO
IF NOT mx$file_write( .msgfil,
CH$PTR(buffer),
.len,
error)
THEN
BEGIN
mx$file_close(.msgfil, file_abort, error);
mx$file_close(.inpfil, file_abort, error);
RETURN $error(SEVERITY = $warning,
CODE = uf$fwf,
FACILITY = $internal,
MESSAGE_DATA = CH$PTR(.fil),
OPTIONAL_MESSAGE = $error_code,
OPTIONAL_DATA = .error);
END;
IF .len NEQ 0
THEN
BEGIN
mx$file_close(.msgfil, file_abort, error);
mx$file_close(.inpfil, file_abort, error);
RETURN $error(SEVERITY = $warning,
CODE = uf$fwf,
FACILITY = $internal,
MESSAGE_DATA = CH$PTR(.msg[msg_fil_spec]),
OPTIONAL_MESSAGE = $error_code,
OPTIONAL_DATA = .error);
END;
mx$file_close(.inpfil, file_keep, error);
mx$file_delete(.msg[msg_fil_spec]);
END;
mx$file_close(.msgfil, file_keep, error);
%IF %SWITCHES(TOPS20) %THEN scan_pkt(.page,
0,
-1^18+UPLIT(%ASCIZ'POSTMASTER'),
sc_whl);
%ELSE scan_pkt(.page,0,1^18+2,0); %FI
nmu$page_release(.page/%O'1000');
END;
%global_routine('REPPAR', spec, buf):NOVALUE =
BEGIN
%IF %SWITCHES(TOPS20) %THEN
LOCAL
found,
c,
ptr;
found = $false;
spec = CH$PTR(.spec);
c = CH$RCHAR_A(spec);
WHILE .c NEQ 0 DO
SELECTONE .c OF
SET
[%C'>', %C']']: BEGIN
IF CH$RCHAR_A(spec) EQL %C'M'
THEN
IF CH$RCHAR_A(spec) EQL %C'S'
THEN
found = $true;
EXITLOOP;
END;
[%C':']: IF CH$RCHAR(.spec) EQL %C'M'
THEN
c = %C'>'
ELSE
c = CH$RCHAR_A(spec);
[otherwise]: c = CH$RCHAR_A(spec);
TES;
IF .found
THEN
BEGIN
ptr = CH$PTR(.buf);
INCR i FROM 1 TO 4 DO
SELECTONE (c = CH$RCHAR_A(spec)) OF
SET
[%C'.']: CH$WCHAR_A(0, ptr);
[OTHERWISE]: CH$WCHAR_A(.c, ptr);
TES;
END
ELSE
.buf = 0
%ELSE
LOCAL
found,
c,
ptr;
found = $false;
spec = CH$PTR(.spec);
c = CH$RCHAR_A(spec);
WHILE .c NEQ 0 DO
SELECTONE .c OF
SET
[%C':']: BEGIN
IF CH$RCHAR_A(spec) EQL %C'M'
THEN
IF CH$RCHAR_A(spec) EQL %C'S'
THEN
found = $true;
EXITLOOP;
END;
[otherwise]: c = CH$RCHAR_A(spec);
TES;
IF .found
THEN
BEGIN
ptr = CH$PTR(.buf);
INCR i FROM 1 TO 4 DO
SELECTONE (c = CH$RCHAR_A(spec)) OF
SET
[%C'.']: CH$WCHAR_A(0, ptr);
[OTHERWISE]: CH$WCHAR_A(.c, ptr);
TES;
END
ELSE
.buf = 0
%FI
END;
%global_routine('MX$RELEASE_ASCIZ', string_) :NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine calculates the number of words in an ASCIZ string, and
! calls NMU$MEMORY_RELEASE to release the memory.
!
! FORMAL PARAMETERS:
!
! STRING: The address of the ASCIZ string.
!
! IMPLICIT INPUTS:
!
! NONE
!
! IMPLICIT OUTPUTS:
!
! NONE
!
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! NONE
!--
BEGIN
BIND
string = .string_;
LOCAL
length,
pointer;
$TRACE('Release ASCIZ called');
IF (string EQL 0)
THEN
RETURN;
pointer = CH$PTR(string,0,8);
IF CH$RCHAR_A(pointer) EQL 0
THEN
BEGIN
pointer = CH$PLUS(.pointer, 1);
length = CH$ALLOCATION(CH$RCHAR_A(pointer) + 4, 8);
END
ELSE
length = CH$ALLOCATION(CH$LEN(CH$PTR(string), max_string_length) + 1);
nmu$memory_release(string, .length);
END;
%global_routine('MX$BUILD_ENVELOPE_SPEC') =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine formats up an envelope file spec. The spec has the
! following form: LOG:6-hex-digits.ENV where LOG is the logicalname of MX's
! directory.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! ENV_CNTER: The counter used to format the 6-hex-digits used in the
! file spec. It gets incremented each time this routine is
! called.
!
! IMPLICIT OUTPUTS:
!
! NONE
!
! ROUTINE VALUE:
!
! The address of the asciz file spec.
!
! SIDE EFFECTS:
!
! NONE
!--
BEGIN
STACKLOCAL
spec_buf: VECTOR[max_file_name_length];
LOCAL
adr,
buf_ptr,
len;
![301] Add DO-UNTIL. Loop if the new spec refers to an existing file.
DO
BEGIN
env_cntr = .env_cntr + 1;
buf_ptr = CH$PTR(spec_buf);
len = $nmu$text(buf_ptr, max_file_name_length,
'UPS:%(6)H.ENV', .env_cntr);
END
UNTIL NOT mx$file_exists(CH$PTR(spec_buf)) ;
adr = nmu$memory_get(CH$ALLOCATION(.len));
CH$MOVE(.len, CH$PTR(spec_buf), CH$PTR(.adr));
RETURN .adr
END;
%global_routine('MX$UNIQUE_MSG_FILE_NAME') =
!++
! FUNCTIONAL DESCRIPTION:
!
! This routine formats up an envelope file spec. The spec has the
! following form: LOG:6-hex-digits.ENV where LOG is the logicalname of MX's
! directory.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! ENV_CNTER: The counter used to format the 6-hex-digits used in the
! file spec. It gets incremented each time this routine is
! called.
!
! IMPLICIT OUTPUTS:
!
! NONE
!
! ROUTINE VALUE:
!
! The address of the asciz file spec.
!
! SIDE EFFECTS:
!
! NONE
!--
BEGIN
STACKLOCAL
spec_buf: VECTOR[max_file_name_length];
LOCAL
adr,
buf_ptr,
len;
![301] Add DO-UNTIL. Loop if the new spec refers to an existing file.
DO
BEGIN
env_cntr = .env_cntr + 1;
buf_ptr = CH$PTR(spec_buf);
len = $nmu$text(buf_ptr, max_file_name_length,
'UPS:%(6)H.MSG', .env_cntr);
END
UNTIL NOT mx$file_exists(CH$PTR(spec_buf));
adr = nmu$memory_get(CH$ALLOCATION(.len));
CH$MOVE(.len, CH$PTR(spec_buf), CH$PTR(.adr));
RETURN .adr
END;
%routine('MX$CHANGE_EXT',spec,ext) =
BEGIN
LOCAL
ptr,
c,
dflag,
ext_count,
nam_count,
rem_count,
rem,
new_spec;
nam_count = ext_count = rem_count = dflag = 0;
ptr = .ext;
WHILE CH$RCHAR_A(ptr) NEQ 0 DO ext_count = .ext_count + 1;
ptr = .spec;
%IF %SWITCHES(TOPS20) %THEN
BEGIN
LOCAL
jfn;
STACKLOCAL
buffer: VECTOR[CH$ALLOCATION(max_string_length)];
declare_jsys(gtjfn,jfns,rljfn);
$$gtjfn(gj_sht OR gj_old,.ptr;jfn);
$$jfns(CH$PTR(buffer),.jfn,
FLD($jsaof,js_dev) OR FLD($jsaof,js_dir) OR FLD($jsaof,js_nam) OR
FLD($jsaof,js_typ) OR js_paf);
$$rljfn(.jfn);
ptr = CH$PTR(buffer);
!
! The following loop ignores "." within "[...]" or "<...>"
!
WHILE (c = CH$RCHAR(.ptr)) NEQ 0 DO
BEGIN
ptr = CH$PLUS(.ptr, 1);
nam_count = .nam_count + 1;
SELECTONE .c OF
SET
[%C'.']: IF .dflag EQL 0 THEN EXITLOOP;
[%C'<',%C'[']: dflag = .dflag + 1;
[%C'>',%C']']: dflag = .dflag - 1;
TES;
END;
new_spec = nmu$memory_get(CH$ALLOCATION(.nam_count + .ext_count + 1));
CH$COPY(.nam_count, CH$PTR(buffer),
.ext_count, .ext,
0,
.nam_count + .ext_count + 1, CH$PTR(.new_spec));
END;
%ELSE
nam_count = 1;
WHILE CH$RCHAR_A(ptr) NEQ %C'.' DO nam_count = .nam_count + 1;
WHILE $true DO
BEGIN
SELECTONE CH$RCHAR(.ptr) OF
SET
[%C'[', 0]: EXITLOOP;
TES;
ptr = CH$PLUS(.ptr,1);
END;
rem = .ptr;
WHILE CH$RCHAR_A(ptr) NEQ 0 DO rem_count = .rem_count + 1;
new_spec = nmu$memory_get(
CH$ALLOCATION(.nam_count + .ext_count + .rem_count + 1));
CH$COPY(.nam_count, .spec,
.ext_count, .ext,
.rem_count, .rem,
0,
.nam_count + .ext_count + .rem_count + 1, CH$PTR(.new_spec));
%FI
RETURN .new_spec;
END;
%global_routine('MX$MESSAGE_QUEUE_DEFER'):NOVALUE =
!++
! FUNCTIONAL DESCRIPTION:
! This task handle's deferal processing of work requests. This task
! scans its queue for any requests that have been defered long enough. These
! tasks get their state set to send, and get requeued to the WORK-QUEUE.
!
! FORMAL PARAMETERS:
!
! NONE
!
! IMPLICIT INPUTS:
!
! This task takes work requests from the DFER_QUEUE.
!
! IMPLICIT OUTPUTS:
!
! Work requests get requeued to the WORK_QUEUE after they have been
! defered.
!
! COMPLETION CODES:
!
! NONE
!
! SIDE EFFECTS:
!
! NONE
!
!--
BEGIN
LITERAL
wake_up_interval = 2*60; !Seconds
LOCAL
error,
last_change,
domain: REF domain_data_block,
current_time;
WHILE 1 DO
BEGIN
$TRACE('Defer running');
!
! Get the current time
!
time_current(0, current_time);
!
! Scan the queue, rescheduling any request whose sleep-time has expired...
!
nmu$queue_scan(dfer_queue,.current_time,mx$wake_up);
!
! Check to see if the error log file has been modified, CKP if so...
!
IF .mxlogm
THEN
BEGIN
mx$file_close(.mxlogf, file_keep, error);
mxlogf = mxlogm = 0;
END;
!
! Scan each domain, and check to see if any of the database files have changed
!
![314] Don't re-initialize any domains that we have already disabled...
INCR i FROM 0 TO max_number_of_domains - 1 DO
BEGIN
domain = .nettab[.i];
IF (.domain[dom_name] NEQ 0) AND (.domain[dom_init_file]) NEQ 0
THEN
BEGIN
last_change =
mx$file_written_date(CH$PTR(.domain[dom_init_file]));
IF time_test(last_change, GTR, domain[dom_last_init_time])
THEN
mx$data_initialize(.i);
END;
END;
nmu$sched_sleep(wake_up_interval);
END;
END; !End of MX$MESSAGE_QUEUE_DEFER
%global_routine('MX$WAKE_UP', request: REF work_request_block, tim) =
!++
! FUNCTIONAL DESCRIPTION:
! This task requeues work_requests that have been sleeping for at least
! their sleep time.
!
! FORMAL PARAMETERS:
!
! REQUEST - A queue entry containing a work request.
! TIME - The current time.
!
! IMPLICIT INPUTS:
!
! NONE
!
! IMPLICIT OUTPUTS:
!
! Work requests get inserted into the WORK_QUEUE.
!
! COMPLETION CODES:
!
! Returns 0 always to tell NMU$QUEUE_SCAN to continue scanning.
!
! SIDE EFFECTS:
!
! NONE
!
!--
BEGIN
LOCAL
msg: REF message_table_entry,
wake_time;
wake_time = .request[req_state_specific_field];
IF time_test(wake_time, LEQ, tim)
THEN
BEGIN
nmu$queue_scan_extract(.request);
$mx$change_state(.request, $send);
END
ELSE
BEGIN
nmu$table_fetch(active_message_table,
.request[req_message_id],
msg);
IF ((.msg[msg_state] EQL $msg_canceled) OR
(.msg[msg_state] EQL $msg_restart))
THEN
BEGIN
nmu$queue_scan_extract(.request);
$mx$change_state(.request)
END
ELSE
IF .request[req_state] EQL $defer
THEN
IF time_test(request[req_time_to_live], LEQ, tim)
THEN
BEGIN
nmu$queue_scan_extract(.request);
$mx$change_state(.request, $reject); !Msg has expired
END;
END;
RETURN 0
END; !End of MX$WAKE_UP
END !End of module MXQMAN
ELUDOM