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GNU Info (standards.info)MmapMmap ==== Don't assume that `mmap' either works on all files or fails for all files. It may work on some files and fail on others. The proper way to use `mmap' is to try it on the specific file for which you want to use it--and if `mmap' doesn't work, fall back on doing the job in another way using `read' and `write'. The reason this precaution is needed is that the GNU kernel (the HURD) provides a user-extensible file system, in which there can be many different kinds of "ordinary files." Many of them support `mmap', but some do not. It is important to make programs handle all these kinds of files. automatically generated by info2www version 1.2.2.9 |