[Swift-user] How can one force ordering into swift operations

[Lorenzo Pesce]

So that I return an array of files of unknown size (don't know how many files they will be) to the calling swift script?


On Jan 24, 2013, at 10:08 AM, Glen Hocky wrote:

> Lorenzo,
> This may not work for your purposes, but a simple solution similar to what I do, is to actually do step 1 in the wrapper before the mapping is done. This guarantees that all files are in place.
> 
> Best,
> Glen
> 
> 
> On Thu, Jan 24, 2013 at 10:43 AM, Lorenzo Pesce <lpesce at uchicago.edu> wrote:
> I have a simple problem:
> step 1: I run an app that splits a file in a group of files and we don't know how many they are.
> step2: I want to map those files using a mapper after the fact
> 
> Problem is that the mapper doesn't know that it can't run till step 1 is done because it has no input files. How can I tell the mapper (and what follows it by consequence since those files will not be there) that it has to wait for step 1 to b finished?
> 
> Thanks,
> 
>  Lorenzo
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