RE: RSLVSP extended template definition help

Vern,

Would access() work for system objects, user index in this case, or is it just for IFS objects?

Rick

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Vern Hamberg
Sent: Friday, October 22, 2010 6:04 PM
To: RPG programming on the IBM i / System i
Subject: Re: RSLVSP extended template definition help

Rick

I'm wondering why you are using an MI instruction - the access() function does the job very well for anything you can use a path name for. Put in the path, use a zero for test (passed by value) and if you get a zero back, the object exists. Something like that.

Of course, if you are just playing!! :-)

HTH
Vern

On 10/22/2010 3:51 PM, Rick.Chevalier@xxxxxxxxxxxxxxx wrote:

I am trying to use the RSLVSP MI instruction to check object existence from a procedure at run time. If the object exists everything is fine. If the object doesn't exist I get a MCH error. If I understand the documentation correctly I can set a value in the extended template under the options section to not return the MCH error and just return a null pointer instead.

When I try this I get MCH5601:
Message . . . . : Template value not valid for instruction.
Cause . . . . . : The location of the value is template with an offset to
field in bytes X'FFDC', an offset in field in bits X'0001', a length of
field of 128, and an instruction operand number of 2. The reason code is
X'0000'. If the reason code is X'0000', a reason code may not be available.

Running the value of x'FFDC' through a hex to decimal conversion I get 65,500 which is slightly larger than my field size of 128.

I have searched the RPG archives for an example of using the extended template but didn't see one. Here is what I have based on my understanding of the documentation.

d dsUsrIdxDesc ds Qualified
d TypeCode 1a Inz(x'0E')
d SubtypeCode 1a Inz(x'0A')
d ServicePgm 30a Inz('UT1025UI')
d ReqAuth 2a Inz(x'0001')
d TemplateVer 1a Inz(x'00')
d SearchMethod 1a Inz(x'00')
d Options 1a Inz(x'02')
d Reserved1 7a Inz(x'00')
d ASPToSearch 2a Inz(x'00')
d ASPOfContext 2a
d PtrToContext * ProcPtr
d Reserved2 64a Inz(x'00')

Any ideas what I'm missing?


Rick Chevalier




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