whole drum
I see std.os.mmap in the Zig standard library. Does this only work on Linux?
I want to work with memory mapped files on Windows, so it would be awesome if this worked on Windows. However, I would assume that it doesn't work on Windows, given that there is a very different API for managing memory mapped files.
timber barn
I believe it should work if you're linking libc?
but otherwise, I don't see any code for it to work on windows
glacial valley
Last I checked you have to define the extern functions required for it yourself, and if you want crossplatform compatibility then you have to wrap that yourself too
timber barn
what are you referring to?
the functions to map memory are exposed in std.os.windows and std.os.linux afaik
it's just std.os.mmap specifically that only works on posixy systems or while linking libc
glacial valley
oh, are they actually defined (in std.os.windows) now? I had to declare CreateFileMappingW and friends because I didn't see it when I looked, though that was last month
timber barn
Oh, suppose those aren't there then
that is a bit odd
have you considered PRing them?
glacial valley
Anyway, the windows C interface doesn't declare mmap, so std.os.mmap is only posix-portable
timber barn
that seems like those should be in the stdlib
whole drum
How do I link libc?
glacial valley
have you considered PRing them?
I should probably PR the actual declarations, yeah. I also have a very basic interface for wrapping it and std.os.mmap together into one interface at https://github.com/DagothGares/kTools/blob/main/src/util/FileMap.zig
timber barn
ye, sounds a worthwhile endeavour