Hello,
On several other posts I read that it is possible to call external dll functions written in C. I also read that it's not easy to do so. Although I am not an experienced Datastage developer, I do want to give it a try. As a start I downloaded the Universe GCI guide. Here it is said that, to begin, I should log on to the Universe Administrator to use GCI. Where can I find this Administrator? Is it shipped with Datastage?
Peter
calling c dll functions from Datastage
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PeterPol,
when you install the DataStage client on your PC you will get 4 programs:
Designer
Developer
Manager
Administrator
and the last one is what is being referred to. I prefer to open up a telnet session with whatever tool I have and then entering the TCL environment from that shell (after setting the environment with the dsenv script). I find this much easier - mainly because I've been using that method to access UniVerse for a while (I think the keyboards&monitors were still steam-powered back in those days, but can barely remember).
when you install the DataStage client on your PC you will get 4 programs:
Designer
Developer
Manager
Administrator
and the last one is what is being referred to. I prefer to open up a telnet session with whatever tool I have and then entering the TCL environment from that shell (after setting the environment with the dsenv script). I find this much easier - mainly because I've been using that method to access UniVerse for a while (I think the keyboards&monitors were still steam-powered back in those days, but can barely remember).
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ray.wurlod
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DataStage server jobs on Windows can use functions exposed in ActiveX controls. You do not need to use the GCI explicitly to call these. Beware, though, that performance sucks.
There is a mechanism for calling other C functions, but in this case you do need to set up "GCI subroutine definitions". This is quite a technical area, but is documented in a manual called UniVerse GCI Guide (note that this is a UniVerse manual, not a DataStage manual). I am not sure whether user-defined GCI calls will still be possible in version 8.0 and beyond.
There is a mechanism for calling other C functions, but in this case you do need to set up "GCI subroutine definitions". This is quite a technical area, but is documented in a manual called UniVerse GCI Guide (note that this is a UniVerse manual, not a DataStage manual). I am not sure whether user-defined GCI calls will still be possible in version 8.0 and beyond.
IBM Software Services Group
Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.
Any contribution to this forum is my own opinion and does not necessarily reflect any position that IBM may hold.
Hello,
When I run a job I get the following log warning:
DataStage Job 347 Phantom 1728
Error 126 loading GCI library C:\\Ascential\\DataStage\\Engine\\bin\\ultradll.dll.
The specified module could not be found.
DataStage Phantom Finished
Even though I removed ultradll.dll from this directory. (the dll was there because I was experimenting with preparing/calling a dll-function).
Need some help......
Peter
When I run a job I get the following log warning:
DataStage Job 347 Phantom 1728
Error 126 loading GCI library C:\\Ascential\\DataStage\\Engine\\bin\\ultradll.dll.
The specified module could not be found.
DataStage Phantom Finished
Even though I removed ultradll.dll from this directory. (the dll was there because I was experimenting with preparing/calling a dll-function).
Need some help......
Peter
