C_quicknotes

Aug 8, 2022

Takeaways from the book “Advanced C Programming” by Berry, John Thomas.

While it’s titled “advanced”, it is rather basic. Here is some quick notes on stuff that I’m not familar with/ don’t use often.

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List synchronization, from coarse-grained to non blocking wait-free

May 8, 2022

Concepts: Wait-free and Lock-free

An object impl. is wait-free if every thread completes a method in a finite number of steps:

  • NO mutual exclusion (thread should not halt in critical section)
  • NO while loop (that may keep spining..)

An object impl. if lock-free if in an infinite execution infinitely often some method call finishes(in a finite number of steps)

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Pg_upgrade

Apr 24, 2022

TIFU by letting pacman upgrade the postgresql a major version (13->14). Then the postgresql service failed to start.. Anyways here is the fix.

also a nice thing in the AUR: the postgresql-old-upgrade package. It provides the binary for the older version of psql under/opt/postgresql{VERSION}

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A (neo)vim IDE setup for C/C++, that just works

Apr 18, 2022
Honestly I don’t think over-functional completion and diagnostics give you any productivity. The same is true for highlighting: if you highlight everything, you highlight nothing. It’s a harmful mentality to think “oh I have to have the best tools before I get started.” No, tool is just tool, the purpose is production. So this is what I want: basic syntax highlighting. completions based on current project. jump to definition. <–!more–> Essential tools/plugins Deoplete for completion framework Read more ...