Commit e2242870 authored by Committed by ROOLBrowse files
 Make use of fsfile_ReadInfoNoLen
Update EnsureCanonicalObject so that it can optionally skip reading the file/object length, based on the new argument R7. Then trace back through the callers to have them pass in an appropriate value based on whether they care about the length or not. TopPath_DoBusinessToPath has also gained a new flag bit to suppress reading the length, but so far I've only updated DoThePath to use it. Result: If you have a file in PipeFS which is open for writing, and then attempt to open it for reading using OS_Find, it'll now open immediately instead of PipeFS trying to block/sleep until it's no longer open for writing. Why: Since at least as far back as RISC OS 3.6, PipeFS tries to sleep inside fsfile_ReadInfo if the file is open for writing. But a combination of buggy sleep logic and TaskWindow's lazy approach to UpCall 6 meant that (prior to TaskWindow 0.65) it wouldn't sleep for long and would instead allow the open to proceed while the file is still open for write. The ab...
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