Re: External dsect
On Wed, 30 Jan 2019 08:08:43 -0500, Peter Relson wrote:
>
>I'll quibble about the very title of this post. I'd say that there is no
>such thing as an external dsect.
>A dsect is just a mapping. What you are talking about is simply an
>external CSECT of DC's for which you provide a DSECT to map.
>
That earns you the right to an RCF. The HLASM Ref. uses "external DSECT"
three times, generally in connection with the DXD instruction.
On Sun, 3 Feb 2019 17:19:42 -0500, Steve Smith wrote:
>Bleah. "Good form" may be in the eye of the beholder. Personally, I see
>very little value in macro keywords that specify if or how to create one
>statement of output. I'd rather they leave it to the programmer to code
>CSECTs, DSECTs, etc. where he wants them.
>
I believe DSECT={YES|NO} is valuable. It saves the programmer not only
one instruction but the need to wrap the macro call in order to use
&SYSLOC LOCTR in order to restore the calling context.
I might prefer SECT={CSECT|DSECT|NONE} to support the programmer's
embedding multiple macros in one data area by entirely suppressing the
CSECT/DSECT instruction.
-- gil
--
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Re: External dsect
Bleah. "Good form" may be in the eye of the beholder. Personally, I see very little value in macro keywords that specify if or how to create one statement of output. I'd rather they leave it to the programmer to code CSECTs, DSECTs, etc. where he wants them. sas On Sun, Feb 3, 2019 at 3:34 PM Seymour J Metz wrote: > It's good form to write a macro that, with an appropriate parameter, will > generate either the CSECT or the DSECT. > > > -- > Shmuel (Seymour J.) Metz > http://mason.gmu.edu/~smetz3 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
No argument. An alternative is to place the xSECT statement before the macro invocation: For the real storage: MYPARMS CSECT PARMMAC FOO=YES,BAR=NO Everywhere else: MYPARMS DSECT PARMMAC FOO=YES,BAR=NO Charles -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Seymour J Metz Sent: Sunday, February 3, 2019 12:34 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: External dsect It's good form to write a macro that, with an appropriate parameter, will generate either the CSECT or the DSECT. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM Mainframe Discussion List on behalf of Peter Relson Sent: Wednesday, January 30, 2019 8:08 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: External dsect I do agree with all the posts that you should not do a LOAD in an exit. I'll quibble about the very title of this post. I'd say that there is no such thing as an external dsect. A dsect is just a mapping. What you are talking about is simply an external CSECT of DC's for which you provide a DSECT to map. The OP of course knows how to initialize a csect. A DSECT could be used to help guide where the DC's go if wanted (such as by using ORG the_start+the_field_in_the_dsect). And of course the DSECT would be used to interpret the CSECT. If you're going to go the route of an initialized CSECT that a customer assembles, then you should probably provide a macro within the CSECT so that the customer is updating the macro (and the macro knows how to set the fields). Once the CSECT is initialized, there is only the question of whether it is bound with your code (and thus addressable by v-con) or is located dynamically by your code. Peter Relson z/OS Core Technology Design -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
It's good form to write a macro that, with an appropriate parameter, will generate either the CSECT or the DSECT. -- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 From: IBM Mainframe Discussion List on behalf of Peter Relson Sent: Wednesday, January 30, 2019 8:08 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: External dsect I do agree with all the posts that you should not do a LOAD in an exit. I'll quibble about the very title of this post. I'd say that there is no such thing as an external dsect. A dsect is just a mapping. What you are talking about is simply an external CSECT of DC's for which you provide a DSECT to map. The OP of course knows how to initialize a csect. A DSECT could be used to help guide where the DC's go if wanted (such as by using ORG the_start+the_field_in_the_dsect). And of course the DSECT would be used to interpret the CSECT. If you're going to go the route of an initialized CSECT that a customer assembles, then you should probably provide a macro within the CSECT so that the customer is updating the macro (and the macro knows how to set the fields). Once the CSECT is initialized, there is only the question of whether it is bound with your code (and thus addressable by v-con) or is located dynamically by your code. Peter Relson z/OS Core Technology Design -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
I want to say thanks to everyone. My experience / knowledge has gaps so when I have doubts or questions i come to this great repository of experience to ask the questions. Scott On Wed, Jan 30, 2019 at 4:17 PM scott Ford wrote: > Don exactly. I am having to reverse engineer a situation that was out of > my control. > I read what everyone said and i think the ECVT customer slot is much > better. > We dont provide our exit source, but we do provide framework in HLASM that > includes a > call to our actual code. > Many years ago in a past life, we had external tables, tables that could > be built and updated separate from > the calling code. This was in a CICS program , i *think* because this was > about 25+ yrs ago we had a > CSECT and DSECT for the actual table. I dont feel sometime the older ways > are so bad, but this is > am opinion of course. > > Scott > > On Wed, Jan 30, 2019 at 9:14 AM Don Poitras wrote: > >> In article < >> of19ca4142.d70dd9b8-on85258392.0047a325-85258392.00483...@notes.na.collabserv.com> >> you wrote: >> > I do agree with all the posts that you should not do a LOAD in an exit. >> > I'll quibble about the very title of this post. I'd say that there is >> no >> > such thing as an external dsect. >> >> Well, there is such a thing, but it's not what this thread is discussing. >> A dsect is "external" if it is used like a DXD. i.e. the target of a >> qcon. >> >> > A dsect is just a mapping. What you are talking about is simply an >> > external CSECT of DC's for which you provide a DSECT to map. >> > The OP of course knows how to initialize a csect. >> > A DSECT could be used to help guide where the DC's go if wanted (such >> as >> > by using ORG the_start+the_field_in_the_dsect). And of course the DSECT >> > would be used to interpret the CSECT. >> > If you're going to go the route of an initialized CSECT that a customer >> > assembles, then you should probably provide a macro within the CSECT so >> > that the customer is updating the macro (and the macro knows how to set >> > the fields). >> > Once the CSECT is initialized, there is only the question of whether it >> is >> > bound with your code (and thus addressable by v-con) or is located >> > dynamically by your code. >> > Peter Relson >> > z/OS Core Technology Design >> >> -- >> Don Poitras - SAS Development - SAS Institute Inc. - SAS Campus Drive >> sas...@sas.com (919) 531-5637Cary, NC 27513 >> >> -- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN >> > > > -- > > > > *IDMWORKS * > > Scott Ford > > z/OS Dev. > > > > > “By elevating a friend or Collegue you elevate yourself, by demeaning a > friend or collegue you demean yourself” > > > > www.idmworks.com > > scott.f...@idmworks.com > > Blog: www.idmworks.com/blog > > > > > > *The information contained in this email message and any attachment may be > privileged, confidential, proprietary or otherwise protected from > disclosure. If the reader of this message is not the intended recipient, > you are hereby notified that any dissemination, distribution, copying or > use of this message and any attachment is strictly prohibited. If you have > received this message in error, please notify us immediately by replying to > the message and permanently delete it from your computer and destroy any > printout thereof.* > -- *IDMWORKS * Scott Ford z/OS Dev. “By elevating a friend or Collegue you elevate yourself, by demeaning a friend or collegue you demean yourself” www.idmworks.com scott.f...@idmworks.com Blog: www.idmworks.com/blog *The information contained in this email message and any attachment may be privileged, confidential, proprietary or otherwise protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, copying or use of this message and any attachment is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and permanently delete it from your computer and destroy any printout thereof.* -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
Don exactly. I am having to reverse engineer a situation that was out of my control. I read what everyone said and i think the ECVT customer slot is much better. We dont provide our exit source, but we do provide framework in HLASM that includes a call to our actual code. Many years ago in a past life, we had external tables, tables that could be built and updated separate from the calling code. This was in a CICS program , i *think* because this was about 25+ yrs ago we had a CSECT and DSECT for the actual table. I dont feel sometime the older ways are so bad, but this is am opinion of course. Scott On Wed, Jan 30, 2019 at 9:14 AM Don Poitras wrote: > In article < > of19ca4142.d70dd9b8-on85258392.0047a325-85258392.00483...@notes.na.collabserv.com> > you wrote: > > I do agree with all the posts that you should not do a LOAD in an exit. > > I'll quibble about the very title of this post. I'd say that there is no > > such thing as an external dsect. > > Well, there is such a thing, but it's not what this thread is discussing. > A dsect is "external" if it is used like a DXD. i.e. the target of a > qcon. > > > A dsect is just a mapping. What you are talking about is simply an > > external CSECT of DC's for which you provide a DSECT to map. > > The OP of course knows how to initialize a csect. > > A DSECT could be used to help guide where the DC's go if wanted (such as > > by using ORG the_start+the_field_in_the_dsect). And of course the DSECT > > would be used to interpret the CSECT. > > If you're going to go the route of an initialized CSECT that a customer > > assembles, then you should probably provide a macro within the CSECT so > > that the customer is updating the macro (and the macro knows how to set > > the fields). > > Once the CSECT is initialized, there is only the question of whether it > is > > bound with your code (and thus addressable by v-con) or is located > > dynamically by your code. > > Peter Relson > > z/OS Core Technology Design > > -- > Don Poitras - SAS Development - SAS Institute Inc. - SAS Campus Drive > sas...@sas.com (919) 531-5637Cary, NC 27513 > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- *IDMWORKS * Scott Ford z/OS Dev. “By elevating a friend or Collegue you elevate yourself, by demeaning a friend or collegue you demean yourself” www.idmworks.com scott.f...@idmworks.com Blog: www.idmworks.com/blog *The information contained in this email message and any attachment may be privileged, confidential, proprietary or otherwise protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, copying or use of this message and any attachment is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and permanently delete it from your computer and destroy any printout thereof.* -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
In article you wrote: > I do agree with all the posts that you should not do a LOAD in an exit. > I'll quibble about the very title of this post. I'd say that there is no > such thing as an external dsect. Well, there is such a thing, but it's not what this thread is discussing. A dsect is "external" if it is used like a DXD. i.e. the target of a qcon. > A dsect is just a mapping. What you are talking about is simply an > external CSECT of DC's for which you provide a DSECT to map. > The OP of course knows how to initialize a csect. > A DSECT could be used to help guide where the DC's go if wanted (such as > by using ORG the_start+the_field_in_the_dsect). And of course the DSECT > would be used to interpret the CSECT. > If you're going to go the route of an initialized CSECT that a customer > assembles, then you should probably provide a macro within the CSECT so > that the customer is updating the macro (and the macro knows how to set > the fields). > Once the CSECT is initialized, there is only the question of whether it is > bound with your code (and thus addressable by v-con) or is located > dynamically by your code. > Peter Relson > z/OS Core Technology Design -- Don Poitras - SAS Development - SAS Institute Inc. - SAS Campus Drive sas...@sas.com (919) 531-5637Cary, NC 27513 -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
Peter Relson wrote: >I do agree with all the posts that you should not do a LOAD in an exit. Thanks and I also agree with that. Many years ago, it was my responsibility to load a module with LOAD EP= into a library using SMF UJI exit. That module is a DSECT containing a looong list of accounting codes be used in a JOB (...) statement. Beside overhead issues, it was sometimes difficult to add a new client dynamically. Now, we are just calling RACF. RACF will check if you may use an accounting code. Based on the RC and Reason code your batch job can run or simply fails with a stern message about usage of accounts... I agree with Rob, that you rather, if possible, should use a parm-driven and command refresh instead of having to redo a DSECT assembly. Thanks Peter for your helpful comments. Groete / Greetings Elardus Engelbrecht -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
I do agree with all the posts that you should not do a LOAD in an exit. I'll quibble about the very title of this post. I'd say that there is no such thing as an external dsect. A dsect is just a mapping. What you are talking about is simply an external CSECT of DC's for which you provide a DSECT to map. The OP of course knows how to initialize a csect. A DSECT could be used to help guide where the DC's go if wanted (such as by using ORG the_start+the_field_in_the_dsect). And of course the DSECT would be used to interpret the CSECT. If you're going to go the route of an initialized CSECT that a customer assembles, then you should probably provide a macro within the CSECT so that the customer is updating the macro (and the macro knows how to set the fields). Once the CSECT is initialized, there is only the question of whether it is bound with your code (and thus addressable by v-con) or is located dynamically by your code. Peter Relson z/OS Core Technology Design -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
Yeah, guys this what I thought ECVT entry was the way to go..Rob I agree very 80s. We have a ECVT table entry, so this much better way to go. I wanted to make sure i know my options before I try to design it. Thanks one and all, it’s very much appreciated. On Tue, Jan 29, 2019 at 3:18 PM Charles Mills wrote: > Let me recommend that vendor word approach. We use it and it works well. > You just want to define the structure that the word will point to in such a > way that you do not paint yourself into an upward compatibility corner. The > word is zero if you have not initialized it. > > Access could not be easier: > > L R1,FLCCVT-PSA(,0) Point to CVT > L R1,CVTECVT-CVT(,R1) Point to ECVT > L R8,ECVTCTBL-ECVT(,R1) Point to Cust Anchor Table > L R7,CZ_from_CTBL(,R8)Load our word > LTRR7,R7 Is it there? > > I believe our own @Peter Relson is the custodian of the word assignments. > > Charles > > > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Christopher Y. Blaicher > Sent: Tuesday, January 29, 2019 10:52 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: External dsect > > If you are an ISV, then I would contact IBM and ask to get an ECVTCTBL > word assigned to your company. That word can be used to point to a CSA > structure of your own making. You can have a program that reads a parm > file and sets appropriate values. > > -- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > -- Scott Ford IDMWORKS z/OS Development -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
Let me recommend that vendor word approach. We use it and it works well. You just want to define the structure that the word will point to in such a way that you do not paint yourself into an upward compatibility corner. The word is zero if you have not initialized it. Access could not be easier: L R1,FLCCVT-PSA(,0) Point to CVT L R1,CVTECVT-CVT(,R1) Point to ECVT L R8,ECVTCTBL-ECVT(,R1) Point to Cust Anchor Table L R7,CZ_from_CTBL(,R8)Load our word LTRR7,R7 Is it there? I believe our own @Peter Relson is the custodian of the word assignments. Charles -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Christopher Y. Blaicher Sent: Tuesday, January 29, 2019 10:52 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: External dsect If you are an ISV, then I would contact IBM and ask to get an ECVTCTBL word assigned to your company. That word can be used to point to a CSA structure of your own making. You can have a program that reads a parm file and sets appropriate values. -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
The approach would work but I think even a LOAD in a system exit is not a good idea. As Chris said, if you are an ISV you may already have an ECVT entry. Today I’d almost expect that someone would update a dataset with the changes and then issue a MODIFY urApp,NEWPARMS=xxx and urApp would read the dataset, update the in-memory copy and manage all the serialization so your exit could just operate on what was in memory and not have to manage it at that level. Matt Hogstrom m...@hogstrom.org +1-919-656-0564 PGP Key: 0x90ECB270 "Aut Inveniam Viam Aut Faciam" translated - "I shall either find a way or make one." The phrase has been attributed to Hannibal <http://en.wikipedia.org/wiki/Hannibal>; when his generals told him it was impossible to cross the Alps by elephant <http://en.wikipedia.org/wiki/Second_Punic_War>, > On Jan 29, 2019, at 1:52 PM, Christopher Y. Blaicher > wrote: > > If you are an ISV, then I would contact IBM and ask to get an ECVTCTBL word > assigned to your company. That word can be used to point to a CSA structure > of your own making. You can have a program that reads a parm file and sets > appropriate values. > PS - Most system exits don't behave well with real I/O because they take too > long. > > Chris Blaicher > Technical Architect > Syncsort, Inc. > > -Original Message- > From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On > Behalf Of Rob Schramm > Sent: Tuesday, January 29, 2019 1:33 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: External dsect > > Scott, > > Not to be overly critical, but isn't this scheme a little 1980's? I had > thought most products had moved away from this and moved to parm-driven with > some sort of refresh or command driven override. > > Not saying it won't work.. because it will. > > I will let others comment on the specifics. > > Rob Schramm > > > > Sent from my BlackBerry - the most secure mobile device > > Original Message > From: idfli...@gmail.com > Sent: January 29, 2019 12:19 PM > To: IBM-MAIN@LISTSERV.UA.EDU > Reply-to: IBM-MAIN@LISTSERV.UA.EDU > Subject: External dsect > > All: > > I want to be able to have an options program for our product that the > customer updates. > Then they would assemble/bind it and we can call it to pass options to our > exits. The exits are system type exits, so i know I/O is limited or not > existent. My question is if i want a program to build the dsect i need to see > an example i assume , please correct me if I am wrong, that i would have: > > CSECT ... > . > DSECT > > Below is a sample if found. > > PRMDSECT DSECTPARM-DSECT (R7) > > USING *,R7 INFORM ASSEMBLER > > PRMTRGT DSCL8TARGET-PGM > > PRMADDR DSXL4TARGET-PGM LOAD-ADDRESS > > PRMERRCD DSXL4TARGET-PGM ERROR-CODE > > PRMRSA EQU * BEGIN PARM-RSA > > LOADPGM CSECT > > USING *,R3 INFORM ASSEMBLER > > LAR3,0(,R15) CSECT ADDRESSABILITY > > L R7,0(,R1) PARMAREA ADDRESSABILITY > > LAR9,PRMRSA POINT TO OUR RSA > > XC0(72,R9),0(R9) ENSURE X'00'S > > LAR15,0(,R9) LOAD WITH OUR RSA-ADDRESS > > STR13,4(,R15)BACKWARD-CHAIN > > STR15,8(,R13)FORWARD-CHAIN > > LRR13,R15LOAD WITH OUR RSA-ADDRESS > > XCPRMADDR,PRMADDRENSURE X'00'S > > LOAD EPLOC=PRMTRGT,ERRET=BADLOAD > > STCM R0,B'',PRMADDR STORE IN PARM-FWORD > > XRR1,R1 ENSURE X'00'S > > BADLOAD EQU * > > STCM R1,B'',PRMERRCD > > RTN2CLLR EQU * > > L R13,4(,R13)RESTORE CALLERS R13 > > XC0(72,R9),0(R9) ENSURE X'00'S > > * > > RETURN (14,12),RC=(15) RESTORE AND RETURN > > * > > LTORG , > > YREGS , MVS REGISTER-MACRO > > LOADPGM AMODE 31 , > > LOADPGM RMODE ANY , > > END , > > > I am think my exit could issue a LOAD for a program similar to above with > something like this: > > OPTSPARM DSECT > > OPTTBL DS0F > > LOGMSG
Re: External dsect
If you are an ISV, then I would contact IBM and ask to get an ECVTCTBL word assigned to your company. That word can be used to point to a CSA structure of your own making. You can have a program that reads a parm file and sets appropriate values. PS - Most system exits don't behave well with real I/O because they take too long. Chris Blaicher Technical Architect Syncsort, Inc. -Original Message- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Rob Schramm Sent: Tuesday, January 29, 2019 1:33 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: External dsect Scott, Not to be overly critical, but isn't this scheme a little 1980's? I had thought most products had moved away from this and moved to parm-driven with some sort of refresh or command driven override. Not saying it won't work.. because it will. I will let others comment on the specifics. Rob Schramm Sent from my BlackBerry - the most secure mobile device Original Message From: idfli...@gmail.com Sent: January 29, 2019 12:19 PM To: IBM-MAIN@LISTSERV.UA.EDU Reply-to: IBM-MAIN@LISTSERV.UA.EDU Subject: External dsect All: I want to be able to have an options program for our product that the customer updates. Then they would assemble/bind it and we can call it to pass options to our exits. The exits are system type exits, so i know I/O is limited or not existent. My question is if i want a program to build the dsect i need to see an example i assume , please correct me if I am wrong, that i would have: CSECT ... . DSECT Below is a sample if found. PRMDSECT DSECT PARM-DSECT (R7) USING *,R7 INFORM ASSEMBLER PRMTRGT DS CL8 TARGET-PGM PRMADDR DS XL4 TARGET-PGM LOAD-ADDRESS PRMERRCD DS XL4 TARGET-PGM ERROR-CODE PRMRSA EQU * BEGIN PARM-RSA LOADPGM CSECT USING *,R3 INFORM ASSEMBLER LA R3,0(,R15) CSECT ADDRESSABILITY L R7,0(,R1) PARMAREA ADDRESSABILITY LA R9,PRMRSA POINT TO OUR RSA XC 0(72,R9),0(R9) ENSURE X'00'S LA R15,0(,R9) LOAD WITH OUR RSA-ADDRESS ST R13,4(,R15) BACKWARD-CHAIN ST R15,8(,R13) FORWARD-CHAIN LR R13,R15 LOAD WITH OUR RSA-ADDRESS XC PRMADDR,PRMADDR ENSURE X'00'S LOAD EPLOC=PRMTRGT,ERRET=BADLOAD STCM R0,B'',PRMADDR STORE IN PARM-FWORD XR R1,R1 ENSURE X'00'S BADLOAD EQU * STCM R1,B'',PRMERRCD RTN2CLLR EQU * L R13,4(,R13) RESTORE CALLERS R13 XC 0(72,R9),0(R9) ENSURE X'00'S * RETURN (14,12),RC=(15) RESTORE AND RETURN * LTORG , YREGS , MVS REGISTER-MACRO LOADPGM AMODE 31 , LOADPGM RMODE ANY , END , I am think my exit could issue a LOAD for a program similar to above with something like this: OPTSPARM DSECT OPTTBL DS 0F LOGMSGS DC C'P',H'5',C'LOG=Y' TRACE DC C'P',H'7',C'TRACE=N' TBLEND DC X'FF',H'0',C' ' Then the exit would take action based on the options passed. It would have to be re-entrant of course. Is my thinking right all ? Scott *IDMWORKS * Scott Ford z/OS Dev. “By elevating a friend or Collegue you elevate yourself, by demeaning a friend or collegue you demean yourself” www.idmworks.com scott.f...@idmworks.com Blog: www.idmworks.com/blog *The information contained in this email message and any attachment may be privileged, confidential, proprietary or otherwise protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, copying or use of this message and any attachment is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and permanently delete it from your computer and destroy any printout thereof.* -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
Re: External dsect
Scott, Not to be overly critical, but isn't this scheme a little 1980's? I had thought most products had moved away from this and moved to parm-driven with some sort of refresh or command driven override. Not saying it won't work.. because it will. I will let others comment on the specifics. Rob Schramm Sent from my BlackBerry - the most secure mobile device Original Message From: idfli...@gmail.com Sent: January 29, 2019 12:19 PM To: IBM-MAIN@LISTSERV.UA.EDU Reply-to: IBM-MAIN@LISTSERV.UA.EDU Subject: External dsect All: I want to be able to have an options program for our product that the customer updates. Then they would assemble/bind it and we can call it to pass options to our exits. The exits are system type exits, so i know I/O is limited or not existent. My question is if i want a program to build the dsect i need to see an example i assume , please correct me if I am wrong, that i would have: CSECT ... . DSECT Below is a sample if found. PRMDSECT DSECT PARM-DSECT (R7) USING *,R7 INFORM ASSEMBLER PRMTRGT DS CL8 TARGET-PGM PRMADDR DS XL4 TARGET-PGM LOAD-ADDRESS PRMERRCD DS XL4 TARGET-PGM ERROR-CODE PRMRSA EQU * BEGIN PARM-RSA LOADPGM CSECT USING *,R3 INFORM ASSEMBLER LA R3,0(,R15) CSECT ADDRESSABILITY L R7,0(,R1) PARMAREA ADDRESSABILITY LA R9,PRMRSA POINT TO OUR RSA XC 0(72,R9),0(R9) ENSURE X'00'S LA R15,0(,R9) LOAD WITH OUR RSA-ADDRESS ST R13,4(,R15) BACKWARD-CHAIN ST R15,8(,R13) FORWARD-CHAIN LR R13,R15 LOAD WITH OUR RSA-ADDRESS XC PRMADDR,PRMADDR ENSURE X'00'S LOAD EPLOC=PRMTRGT,ERRET=BADLOAD STCM R0,B'',PRMADDR STORE IN PARM-FWORD XR R1,R1 ENSURE X'00'S BADLOAD EQU * STCM R1,B'',PRMERRCD RTN2CLLR EQU * L R13,4(,R13) RESTORE CALLERS R13 XC 0(72,R9),0(R9) ENSURE X'00'S * RETURN (14,12),RC=(15) RESTORE AND RETURN * LTORG , YREGS , MVS REGISTER-MACRO LOADPGM AMODE 31 , LOADPGM RMODE ANY , END , I am think my exit could issue a LOAD for a program similar to above with something like this: OPTSPARM DSECT OPTTBL DS 0F LOGMSGS DC C'P',H'5',C'LOG=Y' TRACE DC C'P',H'7',C'TRACE=N' TBLEND DC X'FF',H'0',C' ' Then the exit would take action based on the options passed. It would have to be re-entrant of course. Is my thinking right all ? Scott *IDMWORKS * Scott Ford z/OS Dev. “By elevating a friend or Collegue you elevate yourself, by demeaning a friend or collegue you demean yourself” www.idmworks.com scott.f...@idmworks.com Blog: www.idmworks.com/blog *The information contained in this email message and any attachment may be privileged, confidential, proprietary or otherwise protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, copying or use of this message and any attachment is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and permanently delete it from your computer and destroy any printout thereof.* -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
External dsect
All: I want to be able to have an options program for our product that the customer updates. Then they would assemble/bind it and we can call it to pass options to our exits. The exits are system type exits, so i know I/O is limited or not existent. My question is if i want a program to build the dsect i need to see an example i assume , please correct me if I am wrong, that i would have: CSECT ... . DSECT Below is a sample if found. PRMDSECT DSECTPARM-DSECT (R7) USING *,R7 INFORM ASSEMBLER PRMTRGT DSCL8TARGET-PGM PRMADDR DSXL4TARGET-PGM LOAD-ADDRESS PRMERRCD DSXL4TARGET-PGM ERROR-CODE PRMRSA EQU * BEGIN PARM-RSA LOADPGM CSECT USING *,R3 INFORM ASSEMBLER LAR3,0(,R15) CSECT ADDRESSABILITY L R7,0(,R1) PARMAREA ADDRESSABILITY LAR9,PRMRSA POINT TO OUR RSA XC0(72,R9),0(R9) ENSURE X'00'S LAR15,0(,R9) LOAD WITH OUR RSA-ADDRESS STR13,4(,R15)BACKWARD-CHAIN STR15,8(,R13)FORWARD-CHAIN LRR13,R15LOAD WITH OUR RSA-ADDRESS XCPRMADDR,PRMADDRENSURE X'00'S LOAD EPLOC=PRMTRGT,ERRET=BADLOAD STCM R0,B'',PRMADDR STORE IN PARM-FWORD XRR1,R1 ENSURE X'00'S BADLOAD EQU * STCM R1,B'',PRMERRCD RTN2CLLR EQU * L R13,4(,R13)RESTORE CALLERS R13 XC0(72,R9),0(R9) ENSURE X'00'S * RETURN (14,12),RC=(15) RESTORE AND RETURN * LTORG , YREGS , MVS REGISTER-MACRO LOADPGM AMODE 31 , LOADPGM RMODE ANY , END , I am think my exit could issue a LOAD for a program similar to above with something like this: OPTSPARM DSECT OPTTBL DS0F LOGMSGS DCC'P',H'5',C'LOG=Y' TRACEDCC'P',H'7',C'TRACE=N' TBLEND DCX'FF',H'0',C' ' Then the exit would take action based on the options passed. It would have to be re-entrant of course. Is my thinking right all ? Scott *IDMWORKS * Scott Ford z/OS Dev. “By elevating a friend or Collegue you elevate yourself, by demeaning a friend or collegue you demean yourself” www.idmworks.com scott.f...@idmworks.com Blog: www.idmworks.com/blog *The information contained in this email message and any attachment may be privileged, confidential, proprietary or otherwise protected from disclosure. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution, copying or use of this message and any attachment is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and permanently delete it from your computer and destroy any printout thereof.* -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
