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cosmopolitan/third_party/nsync
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Justine Tunney c9fecf3a55
Make improvements 
- You can now run `make -j8 toolchain` on Windows
- You can now run `make -j` on MacOS ARM64 and BSD OSes
- You can now use our Emacs dev environment on MacOS/Windows
- Fix bug where the x16 register was being corrupted by --ftrace
- The programs under build/bootstrap/ are updated as fat binaries
- The Makefile now explains how to download cosmocc-0.0.12 toolchain
- The build scripts under bin/ now support "cosmo" branded toolchains
- stat() now goes faster on Windows (shaves 100ms off `make` latency)
- Code cleanup and added review on the Windows signal checking code
- posix_spawnattr_setrlimit() now works around MacOS ARM64 bugs
- Landlock Make now favors posix_spawn() on non-Linux/OpenBSD
- posix_spawn() now has better --strace logging on Windows
- fstatat() can now avoid EACCES in more cases on Windows
- fchmod() can now change the readonly bit on Windows
2023-10-15 16:45:00 -07:00
..
mem Make improvements 2023-10-08 08:59:53 -07:00
testing Make improvements 2023-09-18 21:04:47 -07:00
array.internal.h Clean up some sleep code 2022-10-08 03:00:48 -07:00
atomic.h Make some more fixes 2023-10-09 12:22:00 -07:00
atomic.internal.h Add shared memory apis to redbean 2022-10-06 04:55:26 -07:00
common.c Get rid of kmalloc() 2023-09-11 21:56:00 -07:00
common.internal.h Get rid of kmalloc() 2023-09-11 21:56:00 -07:00
compat.S Make improvements 2023-06-15 14:50:53 -07:00
counter.h Clean up more code 2023-07-06 08:03:24 -07:00
cv.h Clean up more code 2023-07-06 08:03:24 -07:00
debug.h Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
futex.c Make improvements 2023-10-15 16:45:00 -07:00
futex.internal.h Fix warnings 2023-09-01 20:50:18 -07:00
heap.internal.h Clean up some sleep code 2022-10-08 03:00:48 -07:00
LICENSE.txt Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
mu.c Make improvements 2023-10-08 08:59:53 -07:00
mu.h Clean up more code 2023-07-06 08:03:24 -07:00
mu_semaphore.c Improve threading and i/o routines 2023-10-12 23:13:04 -07:00
mu_semaphore.h Make improvements 2023-10-08 08:59:53 -07:00
mu_semaphore.internal.h Make some more fixes 2023-10-09 12:22:00 -07:00
mu_semaphore_futex.c Make improvements 2023-09-18 21:04:47 -07:00
mu_semaphore_gcd.c Improve threading and i/o routines 2023-10-12 23:13:04 -07:00
mu_semaphore_sem.c Make improvements 2023-09-18 21:04:47 -07:00
mu_semaphore_win32.c Make some more fixes 2023-10-09 12:22:00 -07:00
mu_wait.h Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
note.h Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
nsync.mk Make improvements 2023-09-18 21:04:47 -07:00
once.h Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
panic.c Improve threading and i/o routines 2023-10-12 23:13:04 -07:00
races.internal.h Add *NSYNC mu_test 2022-09-11 18:56:29 -07:00
README.cosmo Make futexes 100x better on x86 MacOS 2023-10-03 15:15:43 -07:00
README.md Add *NSYNC to libc/isystem 2022-09-13 01:47:12 -07:00
time.h Improve cancellations, randomness, and time 2022-11-05 23:45:32 -07:00
wait_s.internal.h Clean up more code 2023-07-06 08:03:24 -07:00
waiter.h Use *NSYNC for POSIX threads locking APIs 2022-09-11 11:04:50 -07:00
yield.c Make improvements 2023-09-18 21:04:47 -07:00

README.md

*NSYNC

*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.