cosmopolitan/third_party/nsync/README.md

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# *NSYNC
2022-09-13 08:46:29 +00:00
*NSYNC is a library providing scalable synchronization primitives. The
following packages are provided:
- `THIRD_PARTY_NSYNC` has `nsync_mu` which doesn't depend on malloc().
- `THIRD_PARTY_NSYNC_MEM` has the rest of *NSYNC, e.g. `nsync_cv`.
The origin of this code is here:
git@github.com:google/nsync
ac5489682760393fe21bd2a8e038b528442412a7 (1.25.0)
Author: Mike Burrows <m3b@google.com>
Date: Wed Jun 1 16:47:52 2022 -0700
NSYNC uses the Apache 2.0 license. We made the following local changes:
- Write custom `nsync_malloc_()` so `malloc()` can use *NSYNC.
- Rewrite `futex()` wrapper to support old Linux kernels and OpenBSD.
- Normalize sources to Cosmopolitan style conventions; *NSYNC upstream
supports dozens of compilers and operating systems, at compile-time.
Since Cosmo solves portability at runtime instead, most of the build
config toil has been removed, in order to help the NSYNC source code
be more readable and hackable.