Comments (9)
jvdp1
commented on June 12, 2024
Thank you @PierUgit for this suggestion.
The Discourse discussion is interesting and it seems that there is interest for such an implementation.
My main fear is that such an implementation will be OS-dependent, which may result in issues with portability. However, it should not stop such a projet. I think it would be a nice addition to stdlib.
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PierUgit
commented on June 12, 2024
It's definitely OS-dependent, and even worse maybe compiler-dependent. I assume that on Posix systems all compilers will provide the mmap features, but on Windows I don't know. The Intel compiler directly provides some routines in the kernel32 module, but I'm not sure how it goes with other compilers... I do not develop at all on Windows, so I'm a bit lost at that point.
Generally speaking, how are managed the OS dependent features in stdlib? Are there any in the existing code base? Are there available macros?
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jvdp1
commented on June 12, 2024
I do not develop at all on Windows, so I'm a bit lost at that point.
Me neither...
Generally speaking, how are managed the OS dependent features in stdlib? Are there any in the existing code base? Are there available macros?
Currently only stdlib_system is compiled depending on the OS (with a CPP macro _WIN32). But it gives some issues (e.g., #738).
fpm is probably more advanced regarding OS-dependencies.
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PierUgit
commented on June 12, 2024
I will try porting the demo code to Windows and see... I have to set up a dev environment on my multimedia mini-PC first (the one that sits below the TV, as this is the only Windows machine around :D)
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arjenmarkus
commented on June 12, 2024
I do develop on Windows and in a distant and hardly remembered past I dealt
with memory-mapped files on Windows. I can dust off the code I had, if that
helps or I can try and help out more directly :). I do remember that there
were unexpected differences in behaviour between the two platforms.
Op do 8 feb 2024 om 22:35 schreef PierUgit ***@***.***>:
… I will try porting the demo code to Windows and see... I have to set up a
dev environment on my multimedia mini-PC first (the one that sits below the
TV, as this is the only Windows machine around :D)
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PierUgit
commented on June 12, 2024
An example code (even with some dust :)) could definitely help. And you're also welcome if you want to help.
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arjenmarkus
commented on June 12, 2024
I had a quick look at the stuff - it has been many years since I last did.
There is no particular documentation, I am afraid, so some code diving is
the only way. The code also precedes Fortran 2003, so it is a bit messy
when it comes to the Fortran-C interaction. Please find the zip file in the
attachment (hoping that it is accepted) -- oops, that is not the case,
well, I had to rename the two batch files, then it worked.
Op vr 9 feb 2024 om 19:49 schreef PierUgit ***@***.***>:
… An example code (even with some dust :)) could definitely help. And you're
also welcome if you want to help.
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PierUgit
commented on June 12, 2024
I could install the MSYS2 environment on my office laptop, and start porting the code to Windows. I have a rough version of the anonymous mapping and it looks OK, so at the end everything should (hopefully) work.
Please find the zip file in the attachment (hoping that it is accepted) -- oops, that is not the case, well, I had to rename the two batch files, then it worked.
Actually there's no attachment in the GitHub interface, where I'm reading the posts. I am sending you a separate and personal email : could you send again the files in the answer?
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PierUgit
commented on June 12, 2024
The code now runs on Windows :)
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