Commit graph

12 commits

Author SHA1 Message Date
Justine Tunney
3a9cac4892
Fix small matters and improve sysconf()
- Fix mkdeps.com out of memory error
- Remove static memory from __get_cpu_count()
- Add support for passing hyphen to cat in cocmd
- Change more ZipOS errors from ENOTSUP to EROFS
- Specify mem_unit in sysinfo() output on BSD OSes
2023-08-17 00:32:11 -07:00
Justine Tunney
550b52abf6
Port a lot more code to AARCH64
- Introduce epoll_pwait()
- Rewrite -ftrapv and ffs() libraries in C code
- Use more FreeBSD code in math function library
- Get significantly more tests passing on qemu-aarch64
- Fix many Musl long double functions that were broken on AARCH64
2023-05-14 09:37:26 -07:00
Justine Tunney
c995838e5c
Make improvements
- Clean up sigaction() code
- Add a port scanner example
- Introduce a ParseCidr() API
- Clean up our futex abstraction code
- Fix a harmless integer overflow in ParseIp()
- Use kernel semaphores on NetBSD to make threads much faster
2022-11-07 02:26:06 -08:00
Justine Tunney
60cb435cb4
Implement pthread_atfork()
If threads are being used, then fork() will now acquire and release and
runtime locks so that fork() may be safely used from threads. This also
makes vfork() thread safe, because pthread mutexes will do nothing when
the process is a child of vfork(). More torture tests have been written
to confirm this all works like a charm. Additionally:

- Invent hexpcpy() api
- Rename nsync_malloc_() to kmalloc()
- Complete posix named semaphore implementation
- Make pthread_create() asynchronous signal safe
- Add rm, rmdir, and touch to command interpreter builtins
- Invent sigisprecious() and modify sigset functions to use it
- Add unit tests for posix_spawn() attributes and fix its bugs

One unresolved problem is the reclaiming of *NSYNC waiter memory in the
forked child processes, within apps which have threads waiting on locks
2022-10-16 12:25:13 -07:00
Justine Tunney
8111462789
Add posix semaphores support
There's still some bugs to work out on Windows and OpenBSD.
2022-10-14 09:21:02 -07:00
Justine Tunney
f52f65b2e3
Make system() and popen() thread safe 2022-10-13 15:54:05 -07:00
Justine Tunney
b41f91c658
Greatly expand system() shell code features
The cosmopolitan command interpreter now has 13 builtin commands,
variable support, support for ; / && / || syntax, asynchronous support,
and plenty of unit tests with bug fixes.

This change fixes a bug in posix_spawn() with null envp arg. strace
logging now uses atomic writes for scatter functions. Breaking change
renaming GetCpuCount() to _getcpucount(). TurfWar is now updated to use
the new token bucket algorithm. WIN32 affinity masks now inherit across
fork() and execve().
2022-10-11 21:30:31 -07:00
Justine Tunney
8b469389f6 Remove plenty of makefile misconfigurations 2022-07-21 09:20:59 -07:00
Justine Tunney
a3865ecc3c Make more fixes and improvements
- Fix Makefile flaking due to ZIPOBJ_FLAGS generation
- Make printf() floating point and gdtoa thread safe
- Polish up the runit / runitd programs some more
- Prune some more makefile dependencies
2022-06-13 11:02:13 -07:00
Justine Tunney
fabf7f9f02 Fix popen_test in MODE=dbg
ASAN and vfork() don't appear to play well together. Maybe in later
versions of GCC it'll be better. But vfork() is flirting with danger
after all and that probably doesn't make sense in ASAN mode anyway.
2021-05-01 17:13:48 -07:00
Justine Tunney
1966369e8e Fix bugs and make improvements
- Fix regression with `%lu`
- Added some more headers witnessed in the wild
- Added `-M INT` option to redbean to tune max payload size
- Work around InfoZIP 256 character limit on comment line size
2021-05-01 05:11:35 -07:00
Justine Tunney
d7ac16a9ed Work towards improving signals and processes 2021-01-27 19:34:02 -08:00