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Alex Rivera
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I'm trying to implement the following operation in Java and am not sure how: /* * write data (Data is defined in my package) * to a file only if it does not exist, return success */ boolean writeData(File f, Data d) { FileOutputStream fos = null; try { fos = atomicCreateFile(f); if (fos != null) { /* write data here */ return true; } else { return false; } } finally { fos.close(); // needs to be wrapped in an exception block } } Is there a function that exists already that I can use for atomicCreateFile() ? edit: Uh oh, I'm not sure that File.createNewFile() is sufficient for my needs. What if I call f.createNewFile() and then between the time that it returns and I open the file for writing, someone else has deleted the file? Is there a way I can both create the file and open it for writing + lock it, all in one fell swoop? Do I need to worry about this?
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