Re: Thred safety

> > I replaced all calls to gmtime, strerror, and strtok with corresponding
> > calls to wrappers xgmtime, xstrerr, and xstrtok (see env/stdc.c).
> >
> > At the moment the wrappers just call corresponding standard functions.
> > Any idea how to better implement them?
> 
> Until you have something better,
> sandwich the calls and the data-copying between a mutex lock and unlock.
> With threads, I expect implementation-dependent stuff.
> I expect it can be placed in a header file.
> 

I implemented the wrappers using thread-safe functions (i.e. gmtime_r,
strerror_r, and strtok_r) and thread local storage objects to store
static data. Please see
http://lists.gnu.org/archive/html/help-glpk/2017-01/msg00138.html .


Andrew Makhorin