rwm@atronx.UUCP (Russell McOrmond) (10/29/90)
Well, it seems that I don't fully understand the concept of Tags. I am
trying to make use of the 2.0 System() command, but my knowledge of Tags is
presenting me with a problem.
Here's a code sample. What obvious thing am I doing wrong ;-)
#include <stdio.h>
#include <dos/dostags.h>
#include <clib/dos_protos.h>
main(argc, argv)
int argc;
char *argv[];
{
FILE *outfile,*infile;
int rc;
if (!(outfile = fopen("tempout","w"))) {
printf("error opening outfile\n");
exit(1);
}
if (!(infile = fopen("tempin","r"))) {
printf("error opening infile\n");
fclose(outfile);
exit(1);
}
rc = System(argv[1],
(
SYS_Input, infile,
SYS_Output, outfile,
SYS_Asynch, FALSE,
TAG_DONE
)
);
printf("%d from %s\n",rc,argv[1]);
fclose(infile);
fclose(outfile);
}
---
Opinions expressed in this message are my Own. My Employer does not even
know what these networks ARE.
Russell McOrmond rwm@atronx.UUCP {fts1,alzabo}!atronx!rwm
FidoNet 1:163/109 Net Support:ken@cbmvax.commodore.com (Ken Farinsky - CATS) (10/31/90)
In article <53151.657181050@atronx.UUCP> rwm@atronx.UUCP (Russell McOrmond) writes: >Well, it seems that I don't fully understand the concept of Tags. I am >trying to make use of the 2.0 System() command, but my knowledge of Tags is >presenting me with a problem. > > rc = System(argv[1], > ( > SYS_Input, infile, > SYS_Output, outfile, > SYS_Asynch, FALSE, > TAG_DONE > ) > ); Looks like an extra set of parenthesis. Try: rc = System(argv[1], SYS_Input, infile, SYS_Output, outfile, SYS_Asynch, FALSE, TAG_DONE ); -- -- Ken Farinsky - CATS - (215) 431-9421 - Commodore Business Machines uucp: ken@cbmvax.commodore.com or ...{uunet,rutgers}!cbmvax!ken bix: kfarinsky
rwm@atronx.UUCP (Russell McOrmond) (10/31/90)
In a message posted on 30 Oct 90 19:11:14 GMT,
ken@cbmvax.commodore.com (Ken Farinsky - CATS) wrote:
KF-C>Looks like an extra set of parenthesis. Try:
I tried the Below First, and only tried the above after the compiler (SAS 5.10)
gave me a pile of errors.
I have since tried it with Open() (struct FileHandle), and still no go. (P.S.
This may seem like a silly question, but what function is used to Close a file
opened with Open() Does the normal level 1 close() work?)
KF-C>rc = System(argv[1],
KF-C> SYS_Input, infile,
KF-C> SYS_Output, outfile,
KF-C> SYS_Asynch, FALSE,
KF-C> TAG_DONE
KF-C> );
Anyways, the program seems to run Syncronously, with input and output set to
the consol.
I am using the following to test:
#include <stdio.h>
main(argc, argv)
int argc;
char *argv[];
{
int c;
while ((c=getchar())!=EOF)
putchar(c);
}
KF-C>Ken Farinsky - CATS - (215) 431-9421 - Commodore Business Machines
KF-C>uucp: ken@cbmvax.commodore.com or ...{uunet,rutgers}!cbmvax!ken
KF-C>bix: kfarinsky
Any chance you could drop out an example that Does work? Am I possibly including
the wrong includes? Has anyone else using SAS tried System()?
---
Opinions expressed in this message are my Own. My Employer does not even
know what these networks ARE.
Russell McOrmond rwm@atronx.UUCP {fts1,alzabo}!atronx!rwm
FidoNet 1:163/109 Net Support: (613) 230-2282
Amiga-Fidonet Support 1:1/109ken@cbmvax.commodore.com (Ken Farinsky - CATS) (10/31/90)
I posted this the other day, which turned out to be wrong (as System() will not handle tags on the stack...) >>rc = System(argv[1], >> SYS_Input, infile, >> SYS_Output, outfile, >> SYS_Asynch, FALSE, >> TAG_DONE >> ); Ewout sent me some mail, as follows: >>Ken, System() is tag, not stack based. So he'd have to do something like >> >>struct TagItem tag[5]; >> >>tag[0].ti_Tag = SYS_Input; >>tag[0].ti_Data = infile; >> . >> . >>tag[4].ti_Tag = TAG_END; >> >>But the whole thing that guy is trying to do is wrong anyway since you cannot >>use a level 2 filehandle as an AmigaDOS BPTR filehandle. >>--- >>Ewout Walraven - CATS Commodore Business Machines, Inc. >>215-431-9426 {uunet|rutgers}!cbmvax!ewout So, you have to put the tags into an array, then call System() with a pointer to the name of the command and a pointer to the tag array. Live and learn. > Russell McOrmond rwm@atronx.UUCP {fts1,alzabo}!atronx!rwm > FidoNet 1:163/109 Net Support: (613) 230-2282 > Amiga-Fidonet Support 1:1/109 -- -- Ken Farinsky - CATS - (215) 431-9421 - Commodore Business Machines uucp: ken@cbmvax.commodore.com or ...{uunet,rutgers}!cbmvax!ken bix: kfarinsky
waggoner@dtg.nsc.com (Mark Waggoner) (11/01/90)
In article <53151.657181050@atronx.UUCP> rwm@atronx.UUCP (Russell McOrmond) writes: >Well, it seems that I don't fully understand the concept of Tags. I am >trying to make use of the 2.0 System() command, but my knowledge of Tags is >presenting me with a problem. I don't know anything about tags and, therefore, my comments below are no more than educated guesses... The program below has been edited down: > FILE *outfile,*infile; > int rc; > > if (!(outfile = fopen("tempout","w"))) { ... > if (!(infile = fopen("tempin","r"))) { ... > rc = System(argv[1], > ( > SYS_Input, infile, > SYS_Output, outfile, > SYS_Asynch, FALSE, > TAG_DONE > ) > ); It seems to me unlikely that the System call would use FILE arguments (the infile and outfile parameters) and more likely that it would use a pointer or BPTR to a FileHandle returned by the Dos function Open(). A FILE is defined by the library provided by the compiler vendor and the System() call wouldn't know how to use it. -- Mark Waggoner Santa Clara, CA (408) 721-6306 waggoner@dtg.nsc.com Unofficially representing National Semiconductor Local Area Networks Group Officially misrepresenting myself.
dillon@overload.Berkeley.CA.US (Matthew Dillon) (11/02/90)
It turns out that it is extremely easy to implement stack-based tags,
as someone on BIX pointed out to me. Under 2.0, the Amiga.Lib already
has routines to do this for some commands.... for example,
OpenWindowTags() -stack based tags method, tags are
individual arguments to the routine
OpenWindowTagList() -pointer to array of tags method, you
pass a pointer to the tags array.
One can easily implement one's own routine to convert a stack based
tags list into an array pointer tags list using VAR ARGS. For
example, the implementation of SystemTags() would be:
#include <stdio.h>
#include <stdarg.h>
long
SystemTags(cmd, ...)
char *cmd;
{
va_list va;
long error;
va_start(va, cmd);
error = System(cmd, va);
va_end(va);
return(error);
}
The messages:
In article <15486@cbmvax.commodore.com> ken@cbmvax.commodore.com (Ken Farinsky - CATS) writes:
>I posted this the other day, which turned out to be wrong (as System()
>will not handle tags on the stack...)
>
>>>rc = System(argv[1],
>>> SYS_Input, infile,
>>> SYS_Output, outfile,
>>> SYS_Asynch, FALSE,
>>> TAG_DONE
>>> );
>
>Ewout sent me some mail, as follows:
>
>>>Ken, System() is tag, not stack based. So he'd have to do something like
>>>
>>>struct TagItem tag[5];
>>>
>>>tag[0].ti_Tag = SYS_Input;
>>>tag[0].ti_Data = infile;
>>> .
>>> .
>>>tag[4].ti_Tag = TAG_END;
>>>
>>>But the whole thing that guy is trying to do is wrong anyway since you cannot
>>>use a level 2 filehandle as an AmigaDOS BPTR filehandle.
>>>---
>>>Ewout Walraven - CATS Commodore Business Machines, Inc.
>>>215-431-9426 {uunet|rutgers}!cbmvax!ewout
>
>So, you have to put the tags into an array, then call System() with a
>pointer to the name of the command and a pointer to the tag array.
>Live and learn.
>
>> Russell McOrmond rwm@atronx.UUCP {fts1,alzabo}!atronx!rwm
>> FidoNet 1:163/109 Net Support: (613) 230-2282
>> Amiga-Fidonet Support 1:1/109
>--
>--
>Ken Farinsky - CATS - (215) 431-9421 - Commodore Business Machines
>uucp: ken@cbmvax.commodore.com or ...{uunet,rutgers}!cbmvax!ken
>bix: kfarinsky
--
-Matt
Matthew Dillon dillon@Overload.Berkeley.CA.US
891 Regal Rd. uunet.uu.net!overload!dillon
Berkeley, Ca. 94708
USApeter@cbmvax.commodore.com (Peter Cherna) (11/05/90)
In article <dillon.6960@overload.Berkeley.CA.US> dillon@overload.Berkeley.CA.US (Matthew Dillon) writes: > > It turns out that it is extremely easy to implement stack-based tags, > as someone on BIX pointed out to me. Under 2.0, the Amiga.Lib already > has routines to do this for some commands.... for example, > > OpenWindowTags() -stack based tags method, tags are > individual arguments to the routine > > OpenWindowTagList() -pointer to array of tags method, you > pass a pointer to the tags array. Stubs will eventually be added to amiga.lib for DOS and ASL varargs functions, too. > One can easily implement one's own routine to convert a stack based > tags list into an array pointer tags list using VAR ARGS. For > example, the implementation of SystemTags() would be: Here's a simpler way, that doesn't use ANSI-varargs but is perfectly valid given the Amiga stack conventions: #include <utility/tagitem.h> LONG SystemTags( UBYTE *command, Tag firsttag, ...) { return( System( command, &firsttag ) ); } > -Matt Peter -- Peter Cherna, Software Engineer, Commodore-Amiga, Inc. {uunet|rutgers}!cbmvax!peter peter@cbmvax.cbm.commodore.com My opinions do not necessarily represent the opinions of my employer. "She read him like a book: she liked to peek at his end."
dzenc@gnu.ai.mit.edu (Dan Zenchelsky) (11/06/90)
In article <dillon.6960@overload.Berkeley.CA.US> dillon@overload.Berkeley.CA.US (Matthew Dillon) writes: > > One can easily implement one's own routine to convert a stack based > tags list into an array pointer tags list using VAR ARGS. For > example, the implementation of SystemTags() would be: > > #include <stdio.h> > #include <stdarg.h> > > long > SystemTags(cmd, ...) > char *cmd; > { > va_list va; > long error; > > va_start(va, cmd); > error = System(cmd, va); > va_end(va); > return(error); > } > > > -Matt > Although I haven't yet tried it, this routine should work for any Tag based system call: #include <stdio.h> #include <stdarg.h> long CallTags(long (*cmd)(), ...) { va_list va; long error; va_start(va, cmd); error = cmd(va); va_end(va); return(error); } For example: CallTags(System,argv[1],SYS_Input,infile,SYS_Output,outfile, SYS_Asynch,FALSE,TAG_DONE); -Dan -- ___________________________________________________________________________ | _______ |________________________________________| | || |o| Dan Zenchelsky | | | ||____| | | Any sufficiently advanced bug is | | | ___ | dzenc@gnu.ai.mit.edu | indistinguishable from a feature. | | |_|___|_| |______________-- Rich Kulawiec__________| |__________________________________|________________________________________|
K17CC@CUNYVM (11/16/90)
Sorry about using the reply command to ask a question, but I am kind of new to this and don't know how to use very well. Anyway, I just got DICE from the net and It works admirably well. I am having a problem with making the executables (dcc, dcpp,...) resident. It just does n ot work. I used both the resi command from Wshell and the resident command fro m Arp1.3. Even though they appear on the resident list, dcc will not run them. Dcc will not even run itself from the resident list. Is this a bug or am i d oing something wrong? thanks Michel cole P.S. I have heard that a new version of DICE is out. Have you posted it yet to a site? BTW I am a college student majoring in Comp. sci. Thanks to you, I no w have a very decent compiler wich allows me to work on my projects at home. I truly appreciate your efforts and will register very soon. michel cole k17cc@cunyvm.cuny.edu