[CAUTION] Threads + Blocking I/O + Fork/Memory + File Descriptors + Signal Handlers

[jakwings]

Just a reminder before everything is done.

Also remember to flush the buffers:

#include <stdio.h>
#include <unistd.h>
int main(void) { printf("foo"); /* fflush(stdout); etc */ fork(); return 0; }

Interesting:

• https://man7.org/linux/man-pages/man7/signal-safety.7.html
• https://man7.org/linux/man-pages/man2/sigaction.2.html
• man 3 ev
• https://vorner.github.io/2018/06/28/signal-hook.html
• https://tavianator.com/spawn-of-satan/
• https://brauner.github.io/2018/03/04/locking-in-shared-libraries.html
• https://github.com/oconnor663/duct.py/blob/master/gotchas.md
• https://lwn.net/Articles/360556/
• https://lwn.net/Articles/683118/
• https://lwn.net/Articles/176911/
• https://lwn.net/Articles/789603/
• https://www.kernel.dk/io_uring.pdf
• https://man7.org/linux/man-pages/man7/io_uring.7.html
• https://man7.org/linux/man-pages/man2/splice.2.html
• https://man7.org/linux/man-pages/man2/tee.2.html
• https://www.microsoft.com/en-us/research/publication/a-fork-in-the-road/

• https://lwn.net/Articles/789023/
• https://lwn.net/Articles/789153/
• https://lore.kernel.org/patchwork/patch/1083964/

Very interesting:

• https://arcan-fe.com/2022/10/15/whipping-up-a-new-shell-lashcat9/