GNU bug report logs - #27782
[wishlist] scheme level mmap

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Message #32 received at 27782 <at> debbugs.gnu.org (full text, mbox):

From: Matt Wette <matt.wette <at> gmail.com>
To: 27782 <at> debbugs.gnu.org
Cc: Ludovic Courtès <ludo <at> gnu.org>, matt.wette <at> gmail.com
Subject: new patch for mma
Date: Sat, 4 Jul 2020 12:40:19 -0700

[Message part 1 (text/plain, inline)]

Attached is a patch against guile master (at 3.0.4),
commit 5e1748f75128107e3a0707b66df5adb95d98437e

It is a incomplete, but functional, implementation of a mmap-api, including
1) mmap : low-level mmap, returns a bytevector, not searched for roots
2) mmap/search : like mmap, but not marked w/ GC_exclude_static_roots
3) mmap-file: high-level, easy-to-use mmap (e.g., (mmap-file "foo.dat"))

The above are coded in libguile/filesys.[ch].

Also included is test-suite/tests/mmap-api.test.

Build:
$ ./configure --enable-mmap-api
$ make
$ make check
...
Running mmap-api.test
...

Since implementation of mmap may be not simple, I propose a
git branch (e.g., wip-mmap-api) be created to invite group review,
update, test the update.

Matt

[mmap-api-branch.patch (text/x-patch, attachment)]

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