Re: flock module

[Bruno Haible]

Hi,

Eric Gallager wrote:
> I brought up gnulib's flock module, however, there was some concern
> about how its documentation says, "[T]he replacement function does not
> really work; it exhibits test failures."
> https://www.gnu.org/software/gnulib/manual/html_node/flock.html
> Do these test failures still occur?

Yes, according to my notes they still occur on AIX 7.1 (even on a jfs2 file
system), Solaris 10, and Solaris 11.4.

> What needs to be done to get the replacement function working properly?

I don't know. It's a complicated topic [1][2][3][4].

Bruno

[1] https://stackoverflow.com/questions/29611352/
[2] 
https://www.ict.griffith.edu.au/teaching/2501ICT/archive/guide/ipc/flock.html
[3] 
https://www.quora.com/What-is-the-functional-difference-between-lockf-and-flock-in-Linux
[4] https://apenwarr.ca/log/20101213