HI all, I have a code snippet that works on my mac but not on windows: file := PluggableFileList getFile. fileHandle := FileStream fileNamed: file name. fileHandle binary. I'm getting a debug window with MessageNotUnderstood: UndefinedObject>>binary. I've run into this before when porting C code to windows and have had to use the 'b' flag with fopen() on windows. I have the book 'Squeak Open Personal Computing and Multimedia' and checked out the section on
porting so I could see how fopen() was implemented but 'InterpeterSupportCode writeSupportFiles' doesn't work on my 3.10.2-7179 image. I'm interested in digging into this and would appreciate any pointers to get me moving in the right direction. Tim Patti |
On 17.06.2009, at 12:56, Tim Patti wrote: > HI all, > > I have a code snippet that works on my mac but not on windows: > > file := PluggableFileList getFile. > fileHandle := FileStream fileNamed: file name. > fileHandle binary. > > I'm getting a debug window with MessageNotUnderstood: > UndefinedObject>>binary. Which tells you that "fileHandle" is nil. > I've run into this before when porting C code to windows and have > had to use the 'b' flag with fopen() on windows. > > I have the book 'Squeak Open Personal Computing and Multimedia' and > checked out the section on porting so I could see how fopen() was > implemented but 'InterpeterSupportCode writeSupportFiles' doesn't > work on my 3.10.2-7179 image. > I'm interested in digging into this and would appreciate any > pointers to get me moving in the right direction. Check the file permissions. #fileNamed: opens the file in read-write mode, so you need write permissions to the file. If you only intend to read from the file, use #readOnlyFileNamed: instead. And please note that this level of question is better suited for our beginner's list: http://lists.squeakfoundation.org/mailman/listinfo/beginners - Bert - |
In reply to this post by Tim Patti
Although this was classified as a beginner question and answered, I'll
note that InterpeterSupportCode writeSupportFiles no longer works with current image or likely in any image made in the last 5 years or so, perhaps even longer. The process to load the VM code starts with http://www.squeaksource.com/VMMaker.html and the SVN directory at http://www.squeakvm.org/cgi-bin/viewcvs.cgi Also see platform api thoughts at http://isqueak.org/PlatformVMAPI Lastly if you were desperate and *really* wanted to see where the fopen happened then it's at http://www.squeakvm.org/cgi-bin/viewcvs.cgi/trunk/platforms/Cross/plugins/FilePlugin/sqFilePluginBasicPrims.c?rev=1930&view=auto On 17-Jun-09, at 3:56 AM, Tim Patti wrote: > HI all, > > I have a code snippet that works on my mac but not on windows: > > file := PluggableFileList getFile. > fileHandle := FileStream fileNamed: file name. > fileHandle binary. > > I'm getting a debug window with MessageNotUnderstood: > UndefinedObject>>binary. > > I've run into this before when porting C code to windows and have > had to use the 'b' flag with fopen() on windows. > > I have the book 'Squeak Open Personal Computing and Multimedia' and > checked out the section on porting so I could see how fopen() was > implemented but 'InterpeterSupportCode writeSupportFiles' doesn't > work on my 3.10.2-7179 image. > I'm interested in digging into this and would appreciate any > pointers to get me moving in the right direction. > > Tim Patti > > > -- = = = ======================================================================== John M. McIntosh <[hidden email]> Twitter: squeaker68882 Corporate Smalltalk Consulting Ltd. http://www.smalltalkconsulting.com = = = ======================================================================== |
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